diff options
Diffstat (limited to 'vserver-sources/old/2.0.2_rc6/4910_vs2.0.2-rc6.patch')
| -rw-r--r-- | vserver-sources/old/2.0.2_rc6/4910_vs2.0.2-rc6.patch | 21473 |
1 files changed, 21473 insertions, 0 deletions
diff --git a/vserver-sources/old/2.0.2_rc6/4910_vs2.0.2-rc6.patch b/vserver-sources/old/2.0.2_rc6/4910_vs2.0.2-rc6.patch new file mode 100644 index 0000000..279c6d5 --- /dev/null +++ b/vserver-sources/old/2.0.2_rc6/4910_vs2.0.2-rc6.patch @@ -0,0 +1,21473 @@ +Index: vserver-sources-2.0.2_2.6.15.4/Makefile +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/Makefile ++++ vserver-sources-2.0.2_2.6.15.4/Makefile +@@ -1,7 +1,7 @@ + VERSION = 2 + PATCHLEVEL = 6 + SUBLEVEL = 15 +-EXTRAVERSION = ++EXTRAVERSION = .4-vs2.0.2-rc6-gentoo + NAME=Sliding Snow Leopard + + # *DOCUMENTATION* +Index: vserver-sources-2.0.2_2.6.15.4/arch/alpha/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/alpha/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/alpha/Kconfig +@@ -635,6 +635,8 @@ source "arch/alpha/oprofile/Kconfig" + + source "arch/alpha/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/alpha/kernel/entry.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/alpha/kernel/entry.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/alpha/kernel/entry.S +@@ -874,22 +874,15 @@ sys_getxgid: + .globl sys_getxpid + .ent sys_getxpid + sys_getxpid: ++ lda $sp, -16($sp) ++ stq $26, 0($sp) + .prologue 0 +- ldq $2, TI_TASK($8) + +- /* See linux/kernel/timer.c sys_getppid for discussion +- about this loop. */ +- ldq $3, TASK_REAL_PARENT($2) +-1: ldl $1, TASK_TGID($3) +-#ifdef CONFIG_SMP +- mov $3, $4 +- mb +- ldq $3, TASK_REAL_PARENT($2) +- cmpeq $3, $4, $4 +- beq $4, 1b +-#endif +- stq $1, 80($sp) +- ldl $0, TASK_TGID($2) ++ lda $16, 96($sp) ++ jsr $26, do_getxpid ++ ldq $26, 0($sp) ++ ++ lda $sp, 16($sp) + ret + .end sys_getxpid + +Index: vserver-sources-2.0.2_2.6.15.4/arch/alpha/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/alpha/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/alpha/kernel/ptrace.c +@@ -15,6 +15,7 @@ + #include <linux/slab.h> + #include <linux/security.h> + #include <linux/signal.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/pgtable.h> +@@ -289,6 +290,8 @@ do_sys_ptrace(long request, long pid, lo + read_unlock(&tasklist_lock); + if (!child) + goto out_notsk; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out; + + if (request == PTRACE_ATTACH) { + ret = ptrace_attach(child); +Index: vserver-sources-2.0.2_2.6.15.4/arch/alpha/kernel/systbls.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/alpha/kernel/systbls.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/alpha/kernel/systbls.S +@@ -447,7 +447,7 @@ sys_call_table: + .quad sys_stat64 /* 425 */ + .quad sys_lstat64 + .quad sys_fstat64 +- .quad sys_ni_syscall /* sys_vserver */ ++ .quad sys_vserver /* sys_vserver */ + .quad sys_ni_syscall /* sys_mbind */ + .quad sys_ni_syscall /* sys_get_mempolicy */ + .quad sys_ni_syscall /* sys_set_mempolicy */ +Index: vserver-sources-2.0.2_2.6.15.4/arch/alpha/mm/init.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/alpha/mm/init.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/alpha/mm/init.c +@@ -20,6 +20,7 @@ + #include <linux/init.h> + #include <linux/bootmem.h> /* max_low_pfn */ + #include <linux/vmalloc.h> ++#include <linux/pagemap.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/arm/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/arm/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/arm/Kconfig +@@ -757,6 +757,8 @@ source "arch/arm/oprofile/Kconfig" + + source "arch/arm/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/arm/kernel/calls.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/arm/kernel/calls.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/arm/kernel/calls.S +@@ -327,7 +327,7 @@ __syscall_start: + /* 310 */ .long sys_request_key + .long sys_keyctl + .long sys_semtimedop +-/* vserver */ .long sys_ni_syscall ++ .long sys_vserver + .long sys_ioprio_set + /* 315 */ .long sys_ioprio_get + .long sys_inotify_init +Index: vserver-sources-2.0.2_2.6.15.4/arch/arm26/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/arm26/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/arm26/Kconfig +@@ -232,6 +232,8 @@ source "drivers/usb/Kconfig" + + source "arch/arm26/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/arm26/kernel/calls.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/arm26/kernel/calls.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/arm26/kernel/calls.S +@@ -257,6 +257,11 @@ __syscall_start: + .long sys_lremovexattr + .long sys_fremovexattr + .long sys_tkill ++ ++ .rept 313 - (. - __syscall_start) / 4 ++ .long sys_ni_syscall ++ .endr ++ .long sys_vserver /* 313 */ + __syscall_end: + + .rept NR_syscalls - (__syscall_end - __syscall_start) / 4 +Index: vserver-sources-2.0.2_2.6.15.4/arch/cris/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/cris/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/cris/Kconfig +@@ -177,6 +177,8 @@ source "drivers/usb/Kconfig" + + source "arch/cris/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/frv/mm/mmu-context.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/frv/mm/mmu-context.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/frv/mm/mmu-context.c +@@ -11,6 +11,7 @@ + + #include <linux/sched.h> + #include <linux/mm.h> ++#include <linux/vs_cvirt.h> + #include <asm/tlbflush.h> + + #define NR_CXN 4096 +Index: vserver-sources-2.0.2_2.6.15.4/arch/h8300/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/h8300/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/h8300/Kconfig +@@ -191,6 +191,8 @@ source "fs/Kconfig" + + source "arch/h8300/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/i386/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/i386/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/i386/Kconfig +@@ -448,6 +448,46 @@ config HIGHMEM64G + + endchoice + ++choice ++ prompt "Memory Split User Space" ++ default SPLIT_3GB ++ help ++ A different Userspace/Kernel split allows you to ++ utilize up to alsmost 3GB of RAM without the requirement ++ for HIGHMEM. It also increases the available lowmem. ++ ++config SPLIT_3GB ++ bool "3.0GB/1.0GB Kernel (Default)" ++ help ++ This is the default split of 3GB userspace to 1GB kernel ++ space, which will result in about 860MB of lowmem. ++ ++config SPLIT_25GB ++ bool "2.5GB/1.5GB Kernel" ++ help ++ This split provides 2.5GB userspace and 1.5GB kernel ++ space, which will result in about 1370MB of lowmem. ++ ++config SPLIT_2GB ++ bool "2.0GB/2.0GB Kernel" ++ help ++ This split provides 2GB userspace and 2GB kernel ++ space, which will result in about 1880MB of lowmem. ++ ++config SPLIT_15GB ++ bool "1.5GB/2.5GB Kernel" ++ help ++ This split provides 1.5GB userspace and 2.5GB kernel ++ space, which will result in about 2390MB of lowmem. ++ ++config SPLIT_1GB ++ bool "1.0GB/3.0GB Kernel" ++ help ++ This split provides 1GB userspace and 3GB kernel ++ space, which will result in about 2900MB of lowmem. ++ ++endchoice ++ + config HIGHMEM + bool + depends on HIGHMEM64G || HIGHMEM4G +@@ -1014,6 +1054,8 @@ endmenu + + source "arch/i386/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/i386/boot/compressed/misc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/i386/boot/compressed/misc.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/i386/boot/compressed/misc.c +@@ -309,7 +309,7 @@ static void setup_normal_output_buffer(v + #else + if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory"); + #endif +- output_data = (char *)__PHYSICAL_START; /* Normally Points to 1M */ ++ output_data = (char *)PHYSICAL_START; /* Normally Points to 1M */ + free_mem_end_ptr = (long)real_mode; + } + +@@ -334,8 +334,8 @@ static void setup_output_buffer_if_we_ru + low_buffer_size = low_buffer_end - LOW_BUFFER_START; + high_loaded = 1; + free_mem_end_ptr = (long)high_buffer_start; +- if ( (__PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) { +- high_buffer_start = (uch *)(__PHYSICAL_START + low_buffer_size); ++ if ((PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) { ++ high_buffer_start = (uch *)(PHYSICAL_START + low_buffer_size); + mv->hcount = 0; /* say: we need not to move high_buffer */ + } + else mv->hcount = -1; +Index: vserver-sources-2.0.2_2.6.15.4/arch/i386/kernel/setup.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/i386/kernel/setup.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/i386/kernel/setup.c +@@ -1184,8 +1184,8 @@ void __init setup_bootmem_allocator(void + * the (very unlikely) case of us accidentally initializing the + * bootmem allocator with an invalid RAM area. + */ +- reserve_bootmem(__PHYSICAL_START, (PFN_PHYS(min_low_pfn) + +- bootmap_size + PAGE_SIZE-1) - (__PHYSICAL_START)); ++ reserve_bootmem(PHYSICAL_START, (PFN_PHYS(min_low_pfn) + ++ bootmap_size + PAGE_SIZE-1) - (PHYSICAL_START)); + + /* + * reserve physical page 0 - it's a special BIOS page on many boxes, +Index: vserver-sources-2.0.2_2.6.15.4/arch/i386/kernel/sys_i386.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/i386/kernel/sys_i386.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/i386/kernel/sys_i386.c +@@ -19,6 +19,7 @@ + #include <linux/mman.h> + #include <linux/file.h> + #include <linux/utsname.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ipc.h> +@@ -217,7 +218,7 @@ asmlinkage int sys_uname(struct old_utsn + if (!name) + return -EFAULT; + down_read(&uts_sem); +- err=copy_to_user(name, &system_utsname, sizeof (*name)); ++ err=copy_to_user(name, vx_new_utsname(), sizeof (*name)); + up_read(&uts_sem); + return err?-EFAULT:0; + } +@@ -225,6 +226,7 @@ asmlinkage int sys_uname(struct old_utsn + asmlinkage int sys_olduname(struct oldold_utsname __user * name) + { + int error; ++ struct new_utsname *ptr; + + if (!name) + return -EFAULT; +@@ -233,15 +235,16 @@ asmlinkage int sys_olduname(struct oldol + + down_read(&uts_sem); + +- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN); + error |= __put_user(0,name->sysname+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); ++ error |= __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN); + error |= __put_user(0,name->nodename+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); ++ error |= __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN); + error |= __put_user(0,name->release+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); ++ error |= __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN); + error |= __put_user(0,name->version+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN); ++ error |= __copy_to_user(&name->machine,ptr->machine,__OLD_UTS_LEN); + error |= __put_user(0,name->machine+__OLD_UTS_LEN); + + up_read(&uts_sem); +Index: vserver-sources-2.0.2_2.6.15.4/arch/i386/kernel/syscall_table.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/i386/kernel/syscall_table.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/i386/kernel/syscall_table.S +@@ -273,7 +273,7 @@ ENTRY(sys_call_table) + .long sys_tgkill /* 270 */ + .long sys_utimes + .long sys_fadvise64_64 +- .long sys_ni_syscall /* sys_vserver */ ++ .long sys_vserver + .long sys_mbind + .long sys_get_mempolicy + .long sys_set_mempolicy +Index: vserver-sources-2.0.2_2.6.15.4/arch/i386/kernel/traps.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/i386/kernel/traps.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/i386/kernel/traps.c +@@ -53,6 +53,7 @@ + #include <asm/kdebug.h> + + #include <linux/module.h> ++#include <linux/vserver/debug.h> + + #include "mach_traps.h" + +@@ -307,6 +308,8 @@ void die(const char * str, struct pt_reg + }; + static int die_counter; + ++ vxh_throw_oops(); ++ + if (die.lock_owner != raw_smp_processor_id()) { + console_verbose(); + spin_lock_irq(&die.lock); +@@ -333,8 +336,9 @@ void die(const char * str, struct pt_reg + #endif + if (nl) + printk("\n"); +- notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV); ++ notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV); + show_registers(regs); ++ vxh_dump_history(); + } else + printk(KERN_ERR "Recursive die() failure, output suppressed\n"); + +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/Kconfig +@@ -461,6 +461,8 @@ endmenu + + source "arch/ia64/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/ia32/binfmt_elf32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/ia32/binfmt_elf32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/ia32/binfmt_elf32.c +@@ -236,7 +236,8 @@ ia32_setup_arg_pages (struct linux_binpr + kmem_cache_free(vm_area_cachep, mpnt); + return ret; + } +- current->mm->stack_vm = current->mm->total_vm = vma_pages(mpnt); ++ vx_vmpages_sub(current->mm, current->mm->total_vm - vma_pages(mpnt)); ++ current->mm->stack_vm = current->mm->total_vm; + } + + for (i = 0 ; i < MAX_ARG_PAGES ; i++) { +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/ia32/ia32_entry.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/ia32/ia32_entry.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/ia32/ia32_entry.S +@@ -483,7 +483,7 @@ ia32_syscall_table: + data8 sys_tgkill /* 270 */ + data8 compat_sys_utimes + data8 sys32_fadvise64_64 +- data8 sys_ni_syscall ++ data8 sys32_vserver + data8 sys_ni_syscall + data8 sys_ni_syscall /* 275 */ + data8 sys_ni_syscall +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/ia32/sys_ia32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/ia32/sys_ia32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/ia32/sys_ia32.c +@@ -51,6 +51,7 @@ + #include <linux/compat.h> + #include <linux/vfs.h> + #include <linux/mman.h> ++#include <linux/vs_cvirt.h> + + #include <asm/intrinsics.h> + #include <asm/semaphore.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/kernel/entry.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/kernel/entry.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/kernel/entry.S +@@ -1589,7 +1589,7 @@ sys_call_table: + data8 sys_mq_notify + data8 sys_mq_getsetattr + data8 sys_ni_syscall // reserved for kexec_load +- data8 sys_ni_syscall // reserved for vserver ++ data8 sys_vserver + data8 sys_waitid // 1270 + data8 sys_add_key + data8 sys_request_key +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/kernel/perfmon.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/kernel/perfmon.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/kernel/perfmon.c +@@ -39,6 +39,8 @@ + #include <linux/mount.h> + #include <linux/bitops.h> + #include <linux/rcupdate.h> ++#include <linux/vs_memory.h> ++#include <linux/vs_cvirt.h> + + #include <asm/errno.h> + #include <asm/intrinsics.h> +@@ -2351,7 +2353,7 @@ pfm_smpl_buffer_alloc(struct task_struct + */ + insert_vm_struct(mm, vma); + +- mm->total_vm += size >> PAGE_SHIFT; ++ vx_vmpages_add(mm, size >> PAGE_SHIFT); + vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file, + vma_pages(vma)); + up_write(&task->mm->mmap_sem); +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/kernel/ptrace.c +@@ -18,6 +18,7 @@ + #include <linux/security.h> + #include <linux/audit.h> + #include <linux/signal.h> ++#include <linux/vs_cvirt.h> + + #include <asm/pgtable.h> + #include <asm/processor.h> +@@ -1450,6 +1451,9 @@ sys_ptrace (long request, pid_t pid, uns + read_unlock(&tasklist_lock); + if (!child) + goto out; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; ++ + ret = -EPERM; + if (pid == 1) /* no messing around with init! */ + goto out_tsk; +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/kernel/signal.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/kernel/signal.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/kernel/signal.c +@@ -21,6 +21,7 @@ + #include <linux/binfmts.h> + #include <linux/unistd.h> + #include <linux/wait.h> ++#include <linux/vs_cvirt.h> + + #include <asm/ia32.h> + #include <asm/intrinsics.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/mm/fault.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/mm/fault.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/mm/fault.c +@@ -10,6 +10,7 @@ + #include <linux/smp_lock.h> + #include <linux/interrupt.h> + #include <linux/kprobes.h> ++#include <linux/vs_memory.h> + + #include <asm/pgtable.h> + #include <asm/processor.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/ia64/sn/kernel/xpc_main.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ia64/sn/kernel/xpc_main.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/ia64/sn/kernel/xpc_main.c +@@ -105,6 +105,7 @@ static ctl_table xpc_sys_xpc_hb_dir[] = + 0644, + NULL, + &proc_dointvec_minmax, ++ NULL, + &sysctl_intvec, + NULL, + &xpc_hb_min_interval, +@@ -118,6 +119,7 @@ static ctl_table xpc_sys_xpc_hb_dir[] = + 0644, + NULL, + &proc_dointvec_minmax, ++ NULL, + &sysctl_intvec, + NULL, + &xpc_hb_check_min_interval, +@@ -142,6 +144,7 @@ static ctl_table xpc_sys_xpc_dir[] = { + 0644, + NULL, + &proc_dointvec_minmax, ++ NULL, + &sysctl_intvec, + NULL, + &xpc_disengage_request_min_timelimit, +Index: vserver-sources-2.0.2_2.6.15.4/arch/m32r/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/m32r/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/m32r/kernel/ptrace.c +@@ -25,6 +25,7 @@ + #include <linux/user.h> + #include <linux/string.h> + #include <linux/signal.h> ++#include <linux/vs_cvirt.h> + + #include <asm/cacheflush.h> + #include <asm/io.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/m68k/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/m68k/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/m68k/Kconfig +@@ -650,6 +650,8 @@ source "fs/Kconfig" + + source "arch/m68k/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/m68k/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/m68k/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/m68k/kernel/ptrace.c +@@ -280,6 +280,8 @@ long arch_ptrace(struct task_struct *chi + ret = ptrace_request(child, request, addr, data); + break; + } ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; + + return ret; + out_eio: +Index: vserver-sources-2.0.2_2.6.15.4/arch/m68knommu/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/m68knommu/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/m68knommu/Kconfig +@@ -646,6 +646,8 @@ source "fs/Kconfig" + + source "arch/m68knommu/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/Kconfig +@@ -1817,6 +1817,8 @@ source "arch/mips/oprofile/Kconfig" + + source "arch/mips/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/linux32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/linux32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/linux32.c +@@ -37,6 +37,7 @@ + #include <linux/security.h> + #include <linux/compat.h> + #include <linux/vfs.h> ++#include <linux/vs_cvirt.h> + + #include <net/sock.h> + #include <net/scm.h> +@@ -1150,7 +1151,7 @@ asmlinkage long sys32_newuname(struct ne + int ret = 0; + + down_read(&uts_sem); +- if (copy_to_user(name,&system_utsname,sizeof *name)) ++ if (copy_to_user(name, vx_new_utsname(), sizeof *name)) + ret = -EFAULT; + up_read(&uts_sem); + +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/ptrace.c +@@ -484,6 +484,8 @@ asmlinkage void do_syscall_trace(struct + goto out; + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + goto out; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; + + /* The 0x80 provides a way for the tracing parent to distinguish + between a syscall stop and SIGTRAP delivery */ +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/ptrace32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/ptrace32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/ptrace32.c +@@ -24,6 +24,7 @@ + #include <linux/smp_lock.h> + #include <linux/user.h> + #include <linux/security.h> ++#include <linux/vs_cvirt.h> + + #include <asm/cpu.h> + #include <asm/dsp.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/scall32-o32.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/scall32-o32.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/scall32-o32.S +@@ -607,7 +607,7 @@ einval: li v0, -EINVAL + sys sys_mq_timedreceive 5 + sys sys_mq_notify 2 /* 4275 */ + sys sys_mq_getsetattr 3 +- sys sys_ni_syscall 0 /* sys_vserver */ ++ sys sys_vserver 3 + sys sys_waitid 5 + sys sys_ni_syscall 0 /* available, was setaltroot */ + sys sys_add_key 5 /* 4280 */ +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/scall64-64.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/scall64-64.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/scall64-64.S +@@ -433,7 +433,7 @@ sys_call_table: + PTR sys_mq_timedreceive + PTR sys_mq_notify + PTR sys_mq_getsetattr /* 5235 */ +- PTR sys_ni_syscall /* sys_vserver */ ++ PTR sys_vserver + PTR sys_waitid + PTR sys_ni_syscall /* available, was setaltroot */ + PTR sys_add_key +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/scall64-n32.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/scall64-n32.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/scall64-n32.S +@@ -359,7 +359,7 @@ EXPORT(sysn32_call_table) + PTR compat_sys_mq_timedreceive + PTR compat_sys_mq_notify + PTR compat_sys_mq_getsetattr +- PTR sys_ni_syscall /* 6240, sys_vserver */ ++ PTR sys32_vserver /* 6240 */ + PTR sysn32_waitid + PTR sys_ni_syscall /* available, was setaltroot */ + PTR sys_add_key +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/scall64-o32.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/scall64-o32.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/scall64-o32.S +@@ -481,7 +481,7 @@ sys_call_table: + PTR compat_sys_mq_timedreceive + PTR compat_sys_mq_notify /* 4275 */ + PTR compat_sys_mq_getsetattr +- PTR sys_ni_syscall /* sys_vserver */ ++ PTR sys32_vserver + PTR sys32_waitid + PTR sys_ni_syscall /* available, was setaltroot */ + PTR sys_add_key /* 4280 */ +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/syscall.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/syscall.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/syscall.c +@@ -28,6 +28,7 @@ + #include <linux/shm.h> + #include <linux/compiler.h> + #include <linux/module.h> ++#include <linux/vs_cvirt.h> + + #include <asm/branch.h> + #include <asm/cachectl.h> +@@ -228,7 +229,7 @@ out: + */ + asmlinkage int sys_uname(struct old_utsname * name) + { +- if (name && !copy_to_user(name, &system_utsname, sizeof (*name))) ++ if (name && !copy_to_user(name, vx_new_utsname(), sizeof (*name))) + return 0; + return -EFAULT; + } +@@ -239,21 +240,23 @@ asmlinkage int sys_uname(struct old_utsn + asmlinkage int sys_olduname(struct oldold_utsname * name) + { + int error; ++ struct new_utsname *ptr; + + if (!name) + return -EFAULT; + if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname))) + return -EFAULT; + +- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN); + error -= __put_user(0,name->sysname+__OLD_UTS_LEN); +- error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); ++ error -= __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN); + error -= __put_user(0,name->nodename+__OLD_UTS_LEN); +- error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); ++ error -= __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN); + error -= __put_user(0,name->release+__OLD_UTS_LEN); +- error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); ++ error -= __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN); + error -= __put_user(0,name->version+__OLD_UTS_LEN); +- error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN); ++ error -= __copy_to_user(&name->machine,ptr->machine,__OLD_UTS_LEN); + error = __put_user(0,name->machine+__OLD_UTS_LEN); + error = error ? -EFAULT : 0; + +@@ -289,10 +292,10 @@ asmlinkage int _sys_sysmips(int cmd, lon + return -EFAULT; + + down_write(&uts_sem); +- strncpy(system_utsname.nodename, nodename, len); ++ strncpy(vx_new_uts(nodename), nodename, len); + nodename[__NEW_UTS_LEN] = '\0'; +- strlcpy(system_utsname.nodename, nodename, +- sizeof(system_utsname.nodename)); ++ strlcpy(vx_new_uts(nodename), nodename, ++ sizeof(vx_new_uts(nodename))); + up_write(&uts_sem); + return 0; + } +Index: vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/sysirix.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/mips/kernel/sysirix.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/mips/kernel/sysirix.c +@@ -30,6 +30,7 @@ + #include <linux/socket.h> + #include <linux/security.h> + #include <linux/syscalls.h> ++#include <linux/vs_cvirt.h> + + #include <asm/ptrace.h> + #include <asm/page.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/parisc/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/parisc/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/parisc/Kconfig +@@ -205,6 +205,8 @@ source "arch/parisc/oprofile/Kconfig" + + source "arch/parisc/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/parisc/kernel/sys_parisc32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/parisc/kernel/sys_parisc32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/parisc/kernel/sys_parisc32.c +@@ -657,6 +657,7 @@ asmlinkage int sys32_sysinfo(struct sysi + + do { + seq = read_seqbegin(&xtime_lock); ++ /* FIXME: requires vx virtualization */ + val.uptime = jiffies / HZ; + + val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT); +Index: vserver-sources-2.0.2_2.6.15.4/arch/parisc/kernel/syscall_table.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/parisc/kernel/syscall_table.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/parisc/kernel/syscall_table.S +@@ -368,7 +368,7 @@ + ENTRY_COMP(mbind) /* 260 */ + ENTRY_COMP(get_mempolicy) + ENTRY_COMP(set_mempolicy) +- ENTRY_SAME(ni_syscall) /* 263: reserved for vserver */ ++ ENTRY_DIFF(vserver) + ENTRY_SAME(add_key) + ENTRY_SAME(request_key) /* 265 */ + ENTRY_SAME(keyctl) +Index: vserver-sources-2.0.2_2.6.15.4/arch/powerpc/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/powerpc/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/powerpc/Kconfig +@@ -930,6 +930,8 @@ endmenu + + source "arch/powerpc/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + config KEYS_COMPAT +Index: vserver-sources-2.0.2_2.6.15.4/arch/powerpc/kernel/ptrace32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/powerpc/kernel/ptrace32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/powerpc/kernel/ptrace32.c +@@ -28,6 +28,7 @@ + #include <linux/user.h> + #include <linux/security.h> + #include <linux/signal.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/page.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/powerpc/kernel/syscalls.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/powerpc/kernel/syscalls.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/powerpc/kernel/syscalls.c +@@ -36,6 +36,7 @@ + #include <linux/file.h> + #include <linux/init.h> + #include <linux/personality.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ipc.h> +@@ -262,7 +263,7 @@ long ppc_newuname(struct new_utsname __u + int err = 0; + + down_read(&uts_sem); +- if (copy_to_user(name, &system_utsname, sizeof(*name))) ++ if (copy_to_user(name, vx_new_utsname(), sizeof(*name))) + err = -EFAULT; + up_read(&uts_sem); + if (!err) +@@ -275,7 +276,7 @@ int sys_uname(struct old_utsname __user + int err = 0; + + down_read(&uts_sem); +- if (copy_to_user(name, &system_utsname, sizeof(*name))) ++ if (copy_to_user(name, vx_new_utsname(), sizeof(*name))) + err = -EFAULT; + up_read(&uts_sem); + if (!err) +@@ -286,25 +287,22 @@ int sys_uname(struct old_utsname __user + int sys_olduname(struct oldold_utsname __user *name) + { + int error; ++ struct new_utsname *ptr; + + if (!access_ok(VERIFY_WRITE, name, sizeof(struct oldold_utsname))) + return -EFAULT; + + down_read(&uts_sem); +- error = __copy_to_user(&name->sysname, &system_utsname.sysname, +- __OLD_UTS_LEN); ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname, ptr->sysname, __OLD_UTS_LEN); + error |= __put_user(0, name->sysname + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->nodename, &system_utsname.nodename, +- __OLD_UTS_LEN); ++ error |= __copy_to_user(&name->nodename, ptr->nodename, __OLD_UTS_LEN); + error |= __put_user(0, name->nodename + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->release, &system_utsname.release, +- __OLD_UTS_LEN); ++ error |= __copy_to_user(&name->release, ptr->release, __OLD_UTS_LEN); + error |= __put_user(0, name->release + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->version, &system_utsname.version, +- __OLD_UTS_LEN); ++ error |= __copy_to_user(&name->version, ptr->version, __OLD_UTS_LEN); + error |= __put_user(0, name->version + __OLD_UTS_LEN); +- error |= __copy_to_user(&name->machine, &system_utsname.machine, +- __OLD_UTS_LEN); ++ error |= __copy_to_user(&name->machine, ptr->machine, __OLD_UTS_LEN); + error |= override_machine(name->machine); + up_read(&uts_sem); + +Index: vserver-sources-2.0.2_2.6.15.4/arch/powerpc/kernel/systbl.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/powerpc/kernel/systbl.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/powerpc/kernel/systbl.S +@@ -298,7 +298,7 @@ COMPAT_SYS(fstatfs64) + SYSX(sys_ni_syscall, ppc_fadvise64_64, ppc_fadvise64_64) + PPC_SYS(rtas) + OLDSYS(debug_setcontext) +-SYSCALL(ni_syscall) ++SYSX(sys_vserver, sys32_vserver, sys_vserver) + SYSCALL(ni_syscall) + COMPAT_SYS(mbind) + COMPAT_SYS(get_mempolicy) +Index: vserver-sources-2.0.2_2.6.15.4/arch/powerpc/kernel/vdso.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/powerpc/kernel/vdso.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/powerpc/kernel/vdso.c +@@ -25,6 +25,7 @@ + #include <linux/elf.h> + #include <linux/security.h> + #include <linux/bootmem.h> ++#include <linux/vs_memory.h> + + #include <asm/pgtable.h> + #include <asm/system.h> +@@ -294,7 +295,7 @@ int arch_setup_additional_pages(struct l + kmem_cache_free(vm_area_cachep, vma); + return -ENOMEM; + } +- mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; ++ vx_vmpages_add(mm, (vma->vm_end - vma->vm_start) >> PAGE_SHIFT); + up_write(&mm->mmap_sem); + + return 0; +Index: vserver-sources-2.0.2_2.6.15.4/arch/ppc/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ppc/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/ppc/Kconfig +@@ -1422,6 +1422,8 @@ source "arch/powerpc/oprofile/Kconfig" + + source "arch/ppc/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/ppc/kernel/misc.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/ppc/kernel/misc.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/ppc/kernel/misc.S +@@ -1382,7 +1382,7 @@ _GLOBAL(sys_call_table) + .long ppc_fadvise64_64 + .long sys_ni_syscall /* 255 - rtas (used on ppc64) */ + .long sys_debug_setcontext +- .long sys_ni_syscall /* 257 reserved for vserver */ ++ .long sys_vserver + .long sys_ni_syscall /* 258 reserved for new sys_remap_file_pages */ + .long sys_ni_syscall /* 259 reserved for new sys_mbind */ + .long sys_ni_syscall /* 260 reserved for new sys_get_mempolicy */ +Index: vserver-sources-2.0.2_2.6.15.4/arch/s390/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/s390/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/s390/Kconfig +@@ -485,6 +485,8 @@ source "arch/s390/oprofile/Kconfig" + + source "arch/s390/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/s390/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/s390/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/s390/kernel/ptrace.c +@@ -33,6 +33,7 @@ + #include <linux/security.h> + #include <linux/audit.h> + #include <linux/signal.h> ++#include <linux/vs_cvirt.h> + + #include <asm/segment.h> + #include <asm/page.h> +@@ -738,9 +739,11 @@ sys_ptrace(long request, long pid, long + read_unlock(&tasklist_lock); + if (!child) + goto out; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; + + ret = do_ptrace(child, request, addr, data); +- ++out_tsk: + put_task_struct(child); + out: + unlock_kernel(); +Index: vserver-sources-2.0.2_2.6.15.4/arch/s390/kernel/syscalls.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/s390/kernel/syscalls.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/s390/kernel/syscalls.S +@@ -271,7 +271,7 @@ SYSCALL(sys_clock_settime,sys_clock_sett + SYSCALL(sys_clock_gettime,sys_clock_gettime,sys32_clock_gettime_wrapper) /* 260 */ + SYSCALL(sys_clock_getres,sys_clock_getres,sys32_clock_getres_wrapper) + SYSCALL(sys_clock_nanosleep,sys_clock_nanosleep,sys32_clock_nanosleep_wrapper) +-NI_SYSCALL /* reserved for vserver */ ++SYSCALL(sys_vserver,sys_vserver,sys32_vserver) + SYSCALL(s390_fadvise64_64,sys_ni_syscall,sys32_fadvise64_64_wrapper) + SYSCALL(sys_statfs64,sys_statfs64,compat_sys_statfs64_wrapper) + SYSCALL(sys_fstatfs64,sys_fstatfs64,compat_sys_fstatfs64_wrapper) +Index: vserver-sources-2.0.2_2.6.15.4/arch/sh/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sh/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/sh/Kconfig +@@ -770,6 +770,8 @@ source "arch/sh/oprofile/Kconfig" + + source "arch/sh/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/sh/kernel/kgdb_stub.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sh/kernel/kgdb_stub.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/sh/kernel/kgdb_stub.c +@@ -412,7 +412,7 @@ static struct task_struct *get_thread(in + if (pid == PID_MAX) pid = 0; + + /* First check via PID */ +- thread = find_task_by_pid(pid); ++ thread = find_task_by_real_pid(pid); + + if (thread) + return thread; +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc/Kconfig +@@ -288,6 +288,8 @@ source "fs/Kconfig" + + source "arch/sparc/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc/kernel/ptrace.c +@@ -19,6 +19,7 @@ + #include <linux/smp_lock.h> + #include <linux/security.h> + #include <linux/signal.h> ++#include <linux/vs_cvirt.h> + + #include <asm/pgtable.h> + #include <asm/system.h> +@@ -322,6 +323,10 @@ asmlinkage void do_ptrace(struct pt_regs + pt_error_return(regs, ESRCH); + goto out; + } ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) { ++ pt_error_return(regs, ESRCH); ++ goto out_tsk; ++ } + + if ((current->personality == PER_SUNOS && request == PTRACE_SUNATTACH) + || (current->personality != PER_SUNOS && request == PTRACE_ATTACH)) { +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc/kernel/sys_sparc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc/kernel/sys_sparc.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc/kernel/sys_sparc.c +@@ -21,6 +21,7 @@ + #include <linux/utsname.h> + #include <linux/smp.h> + #include <linux/smp_lock.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ipc.h> +@@ -470,13 +471,13 @@ asmlinkage int sys_getdomainname(char __ + + down_read(&uts_sem); + +- nlen = strlen(system_utsname.domainname) + 1; ++ nlen = strlen(vx_new_uts(domainname)) + 1; + + if (nlen < len) + len = nlen; + if (len > __NEW_UTS_LEN) + goto done; +- if (copy_to_user(name, system_utsname.domainname, len)) ++ if (copy_to_user(name, vx_new_uts(domainname), len)) + goto done; + err = 0; + done: +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc/kernel/systbls.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc/kernel/systbls.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc/kernel/systbls.S +@@ -72,7 +72,7 @@ sys_call_table: + /*250*/ .long sparc_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl + /*255*/ .long sys_nis_syscall, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep + /*260*/ .long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun +-/*265*/ .long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy ++/*265*/ .long sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy + /*270*/ .long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink + /*275*/ .long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid + /*280*/ .long sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc64/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc64/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc64/Kconfig +@@ -398,6 +398,8 @@ endmenu + + source "arch/sparc64/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc64/kernel/binfmt_aout32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc64/kernel/binfmt_aout32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc64/kernel/binfmt_aout32.c +@@ -27,6 +27,7 @@ + #include <linux/binfmts.h> + #include <linux/personality.h> + #include <linux/init.h> ++#include <linux/vs_memory.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc64/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc64/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc64/kernel/ptrace.c +@@ -22,6 +22,7 @@ + #include <linux/seccomp.h> + #include <linux/audit.h> + #include <linux/signal.h> ++#include <linux/vs_cvirt.h> + + #include <asm/asi.h> + #include <asm/pgtable.h> +@@ -233,6 +234,10 @@ asmlinkage void do_ptrace(struct pt_regs + pt_error_return(regs, ESRCH); + goto out; + } ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) { ++ pt_error_return(regs, ESRCH); ++ goto out_tsk; ++ } + + if ((current->personality == PER_SUNOS && request == PTRACE_SUNATTACH) + || (current->personality != PER_SUNOS && request == PTRACE_ATTACH)) { +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc64/kernel/sys_sparc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc64/kernel/sys_sparc.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc64/kernel/sys_sparc.c +@@ -25,6 +25,7 @@ + #include <linux/syscalls.h> + #include <linux/ipc.h> + #include <linux/personality.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ipc.h> +@@ -476,13 +477,13 @@ asmlinkage long sys_getdomainname(char _ + + down_read(&uts_sem); + +- nlen = strlen(system_utsname.domainname) + 1; ++ nlen = strlen(vx_new_uts(domainname)) + 1; + + if (nlen < len) + len = nlen; + if (len > __NEW_UTS_LEN) + goto done; +- if (copy_to_user(name, system_utsname.domainname, len)) ++ if (copy_to_user(name, vx_new_uts(domainname), len)) + goto done; + err = 0; + done: +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc64/kernel/systbls.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc64/kernel/systbls.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc64/kernel/systbls.S +@@ -73,7 +73,7 @@ sys_call_table32: + /*250*/ .word sys32_mremap, sys32_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl + .word sys_ni_syscall, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep + /*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun +- .word sys_timer_delete, sys32_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy ++ .word sys_timer_delete, sys32_timer_create, sys32_vserver, compat_sys_io_setup, sys_io_destroy + /*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink + .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid + /*280*/ .word sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl +@@ -139,7 +139,7 @@ sys_call_table: + /*250*/ .word sys64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl + .word sys_ni_syscall, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep + /*260*/ .word sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun +- .word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy ++ .word sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy + /*270*/ .word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink + .word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid + /*280*/ .word sys_nis_syscall, sys_add_key, sys_request_key, sys_keyctl +Index: vserver-sources-2.0.2_2.6.15.4/arch/sparc64/solaris/fs.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/sparc64/solaris/fs.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/sparc64/solaris/fs.c +@@ -362,7 +362,7 @@ static int report_statvfs(struct vfsmoun + int j = strlen (p); + + if (j > 15) j = 15; +- if (IS_RDONLY(inode)) i = 1; ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) i = 1; + if (mnt->mnt_flags & MNT_NOSUID) i |= 2; + if (!sysv_valid_dev(inode->i_sb->s_dev)) + return -EOVERFLOW; +@@ -398,7 +398,7 @@ static int report_statvfs64(struct vfsmo + int j = strlen (p); + + if (j > 15) j = 15; +- if (IS_RDONLY(inode)) i = 1; ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) i = 1; + if (mnt->mnt_flags & MNT_NOSUID) i |= 2; + if (!sysv_valid_dev(inode->i_sb->s_dev)) + return -EOVERFLOW; +Index: vserver-sources-2.0.2_2.6.15.4/arch/um/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/um/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/um/Kconfig +@@ -293,6 +293,8 @@ source "drivers/connector/Kconfig" + + source "fs/Kconfig" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/um/drivers/mconsole_kern.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/um/drivers/mconsole_kern.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/um/drivers/mconsole_kern.c +@@ -20,6 +20,7 @@ + #include "linux/namei.h" + #include "linux/proc_fs.h" + #include "linux/syscalls.h" ++#include "linux/vs_cvirt.h" + #include "asm/irq.h" + #include "asm/uaccess.h" + #include "user_util.h" +Index: vserver-sources-2.0.2_2.6.15.4/arch/um/kernel/process_kern.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/um/kernel/process_kern.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/um/kernel/process_kern.c +@@ -23,6 +23,8 @@ + #include "linux/proc_fs.h" + #include "linux/ptrace.h" + #include "linux/random.h" ++#include "linux/vs_cvirt.h" ++ + #include "asm/unistd.h" + #include "asm/mman.h" + #include "asm/segment.h" +Index: vserver-sources-2.0.2_2.6.15.4/arch/um/kernel/syscall_kern.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/um/kernel/syscall_kern.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/um/kernel/syscall_kern.c +@@ -15,6 +15,8 @@ + #include "linux/unistd.h" + #include "linux/slab.h" + #include "linux/utime.h" ++#include <linux/vs_cvirt.h> ++ + #include "asm/mman.h" + #include "asm/uaccess.h" + #include "kern_util.h" +@@ -110,7 +112,7 @@ long sys_uname(struct old_utsname * name + if (!name) + return -EFAULT; + down_read(&uts_sem); +- err=copy_to_user(name, &system_utsname, sizeof (*name)); ++ err=copy_to_user(name, vx_new_utsname(), sizeof (*name)); + up_read(&uts_sem); + return err?-EFAULT:0; + } +@@ -118,6 +120,7 @@ long sys_uname(struct old_utsname * name + long sys_olduname(struct oldold_utsname * name) + { + long error; ++ struct new_utsname *ptr; + + if (!name) + return -EFAULT; +@@ -126,19 +129,20 @@ long sys_olduname(struct oldold_utsname + + down_read(&uts_sem); + +- error = __copy_to_user(&name->sysname,&system_utsname.sysname, ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname,ptr->sysname, + __OLD_UTS_LEN); + error |= __put_user(0,name->sysname+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->nodename,&system_utsname.nodename, ++ error |= __copy_to_user(&name->nodename,ptr->nodename, + __OLD_UTS_LEN); + error |= __put_user(0,name->nodename+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->release,&system_utsname.release, ++ error |= __copy_to_user(&name->release,ptr->release, + __OLD_UTS_LEN); + error |= __put_user(0,name->release+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->version,&system_utsname.version, ++ error |= __copy_to_user(&name->version,ptr->version, + __OLD_UTS_LEN); + error |= __put_user(0,name->version+__OLD_UTS_LEN); +- error |= __copy_to_user(&name->machine,&system_utsname.machine, ++ error |= __copy_to_user(&name->machine,ptr->machine, + __OLD_UTS_LEN); + error |= __put_user(0,name->machine+__OLD_UTS_LEN); + +Index: vserver-sources-2.0.2_2.6.15.4/arch/v850/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/v850/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/v850/Kconfig +@@ -319,6 +319,8 @@ source "drivers/usb/Kconfig" + + source "arch/v850/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/v850/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/v850/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/v850/kernel/ptrace.c +@@ -137,6 +137,8 @@ long arch_ptrace(struct task_struct *chi + break; + rval = -EIO; + goto out; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_tsk; + + /* Read/write the word at location ADDR in the registers. */ + case PTRACE_PEEKUSR: +Index: vserver-sources-2.0.2_2.6.15.4/arch/x86_64/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/x86_64/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/arch/x86_64/Kconfig +@@ -574,6 +574,8 @@ endmenu + + source "arch/x86_64/Kconfig.debug" + ++source "kernel/vserver/Kconfig" ++ + source "security/Kconfig" + + source "crypto/Kconfig" +Index: vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/ia32_aout.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/x86_64/ia32/ia32_aout.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/ia32_aout.c +@@ -25,6 +25,7 @@ + #include <linux/binfmts.h> + #include <linux/personality.h> + #include <linux/init.h> ++#include <linux/vs_memory.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/ia32_binfmt.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/x86_64/ia32/ia32_binfmt.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/ia32_binfmt.c +@@ -374,7 +374,8 @@ int ia32_setup_arg_pages(struct linux_bi + kmem_cache_free(vm_area_cachep, mpnt); + return ret; + } +- mm->stack_vm = mm->total_vm = vma_pages(mpnt); ++ vx_vmpages_sub(mm, mm->total_vm - vma_pages(mpnt)); ++ mm->stack_vm = mm->total_vm; + } + + for (i = 0 ; i < MAX_ARG_PAGES ; i++) { +Index: vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/ia32entry.S +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/x86_64/ia32/ia32entry.S ++++ vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/ia32entry.S +@@ -622,7 +622,7 @@ ia32_sys_call_table: + .quad sys_tgkill /* 270 */ + .quad compat_sys_utimes + .quad sys32_fadvise64_64 +- .quad quiet_ni_syscall /* sys_vserver */ ++ .quad sys32_vserver + .quad sys_mbind + .quad compat_sys_get_mempolicy /* 275 */ + .quad sys_set_mempolicy +Index: vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/ptrace32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/x86_64/ia32/ptrace32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/ptrace32.c +@@ -18,6 +18,7 @@ + #include <linux/unistd.h> + #include <linux/mm.h> + #include <linux/ptrace.h> ++#include <linux/vs_cvirt.h> + #include <asm/ptrace.h> + #include <asm/compat.h> + #include <asm/uaccess.h> +Index: vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/sys_ia32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/x86_64/ia32/sys_ia32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/sys_ia32.c +@@ -62,6 +62,7 @@ + #include <linux/highuid.h> + #include <linux/vmalloc.h> + #include <linux/fsnotify.h> ++#include <linux/vs_cvirt.h> + #include <asm/mman.h> + #include <asm/types.h> + #include <asm/uaccess.h> +@@ -860,6 +861,7 @@ asmlinkage long sys32_mmap2(unsigned lon + asmlinkage long sys32_olduname(struct oldold_utsname __user * name) + { + int error; ++ struct new_utsname *ptr; + + if (!name) + return -EFAULT; +@@ -868,13 +870,14 @@ asmlinkage long sys32_olduname(struct ol + + down_read(&uts_sem); + +- error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN); ++ ptr = vx_new_utsname(); ++ error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN); + __put_user(0,name->sysname+__OLD_UTS_LEN); +- __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN); ++ __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN); + __put_user(0,name->nodename+__OLD_UTS_LEN); +- __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN); ++ __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN); + __put_user(0,name->release+__OLD_UTS_LEN); +- __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN); ++ __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN); + __put_user(0,name->version+__OLD_UTS_LEN); + { + char *arch = "x86_64"; +@@ -897,7 +900,7 @@ long sys32_uname(struct old_utsname __us + if (!name) + return -EFAULT; + down_read(&uts_sem); +- err=copy_to_user(name, &system_utsname, sizeof (*name)); ++ err=copy_to_user(name, vx_new_utsname(), sizeof (*name)); + up_read(&uts_sem); + if (personality(current->personality) == PER_LINUX32) + err |= copy_to_user(&name->machine, "i686", 5); +Index: vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/syscall32.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/x86_64/ia32/syscall32.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/x86_64/ia32/syscall32.c +@@ -10,6 +10,7 @@ + #include <linux/init.h> + #include <linux/stringify.h> + #include <linux/security.h> ++#include <linux/vs_memory.h> + #include <asm/proto.h> + #include <asm/tlbflush.h> + #include <asm/ia32_unistd.h> +@@ -70,7 +71,7 @@ int syscall32_setup_pages(struct linux_b + kmem_cache_free(vm_area_cachep, vma); + return ret; + } +- mm->total_vm += npages; ++ vx_vmpages_add(mm, npages); + up_write(&mm->mmap_sem); + return 0; + } +Index: vserver-sources-2.0.2_2.6.15.4/arch/x86_64/kernel/sys_x86_64.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/arch/x86_64/kernel/sys_x86_64.c ++++ vserver-sources-2.0.2_2.6.15.4/arch/x86_64/kernel/sys_x86_64.c +@@ -16,6 +16,7 @@ + #include <linux/file.h> + #include <linux/utsname.h> + #include <linux/personality.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/ia32.h> +@@ -148,7 +149,7 @@ asmlinkage long sys_uname(struct new_uts + { + int err; + down_read(&uts_sem); +- err = copy_to_user(name, &system_utsname, sizeof (*name)); ++ err = copy_to_user(name, vx_new_utsname(), sizeof (*name)); + up_read(&uts_sem); + if (personality(current->personality) == PER_LINUX32) + err |= copy_to_user(&name->machine, "i686", 5); +Index: vserver-sources-2.0.2_2.6.15.4/drivers/block/Kconfig +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/drivers/block/Kconfig ++++ vserver-sources-2.0.2_2.6.15.4/drivers/block/Kconfig +@@ -315,6 +315,13 @@ config BLK_DEV_CRYPTOLOOP + instead, which can be configured to be on-disk compatible with the + cryptoloop device. + ++config BLK_DEV_VROOT ++ tristate "Virtual Root device support" ++ depends on QUOTACTL ++ ---help--- ++ Saying Y here will allow you to use quota/fs ioctls on a shared ++ partition within a virtual server without compromising security. ++ + config BLK_DEV_NBD + tristate "Network block device support" + depends on NET +Index: vserver-sources-2.0.2_2.6.15.4/drivers/block/Makefile +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/drivers/block/Makefile ++++ vserver-sources-2.0.2_2.6.15.4/drivers/block/Makefile +@@ -30,4 +30,5 @@ obj-$(CONFIG_BLK_DEV_CRYPTOLOOP) += cryp + obj-$(CONFIG_VIODASD) += viodasd.o + obj-$(CONFIG_BLK_DEV_SX8) += sx8.o + obj-$(CONFIG_BLK_DEV_UB) += ub.o ++obj-$(CONFIG_BLK_DEV_VROOT) += vroot.o + +Index: vserver-sources-2.0.2_2.6.15.4/drivers/block/vroot.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/drivers/block/vroot.c +@@ -0,0 +1,289 @@ ++/* ++ * linux/drivers/block/vroot.c ++ * ++ * written by Herbert Pötzl, 9/11/2002 ++ * ported to 2.6.10 by Herbert Pötzl, 30/12/2004 ++ * ++ * based on the loop.c code by Theodore Ts'o. ++ * ++ * Copyright (C) 2002-2005 by Herbert Pötzl. ++ * Redistribution of this file is permitted under the ++ * GNU General Public License. ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/module.h> ++#include <linux/moduleparam.h> ++#include <linux/file.h> ++#include <linux/major.h> ++#include <linux/blkdev.h> ++#include <linux/devfs_fs_kernel.h> ++ ++#include <linux/vroot.h> ++#include <linux/vserver/debug.h> ++ ++ ++static int max_vroot = 8; ++ ++static struct vroot_device *vroot_dev; ++static struct gendisk **disks; ++ ++ ++static int vroot_set_dev( ++ struct vroot_device *vr, ++ struct file *vr_file, ++ struct block_device *bdev, ++ unsigned int arg) ++{ ++ struct block_device *real_bdev; ++ struct file *file; ++ struct inode *inode; ++ int error; ++ ++ error = -EBUSY; ++ if (vr->vr_state != Vr_unbound) ++ goto out; ++ ++ error = -EBADF; ++ file = fget(arg); ++ if (!file) ++ goto out; ++ ++ error = -EINVAL; ++ inode = file->f_dentry->d_inode; ++ ++ ++ if (S_ISBLK(inode->i_mode)) { ++ real_bdev = inode->i_bdev; ++ vr->vr_device = real_bdev; ++ __iget(real_bdev->bd_inode); ++ } else ++ goto out_fput; ++ ++ vxdprintk(VXD_CBIT(misc, 0), ++ "vroot[%d]_set_dev: dev=" VXF_DEV, ++ vr->vr_number, VXD_DEV(real_bdev)); ++ ++ vr->vr_state = Vr_bound; ++ error = 0; ++ ++ out_fput: ++ fput(file); ++ out: ++ return error; ++} ++ ++static int vroot_clr_dev( ++ struct vroot_device *vr, ++ struct file *vr_file, ++ struct block_device *bdev) ++{ ++ struct block_device *real_bdev; ++ ++ if (vr->vr_state != Vr_bound) ++ return -ENXIO; ++ if (vr->vr_refcnt > 1) /* we needed one fd for the ioctl */ ++ return -EBUSY; ++ ++ real_bdev = vr->vr_device; ++ ++ vxdprintk(VXD_CBIT(misc, 0), ++ "vroot[%d]_clr_dev: dev=" VXF_DEV, ++ vr->vr_number, VXD_DEV(real_bdev)); ++ ++ bdput(real_bdev); ++ vr->vr_state = Vr_unbound; ++ vr->vr_device = NULL; ++ return 0; ++} ++ ++ ++static int vr_ioctl(struct inode * inode, struct file * file, ++ unsigned int cmd, unsigned long arg) ++{ ++ struct vroot_device *vr = inode->i_bdev->bd_disk->private_data; ++ int err; ++ ++ down(&vr->vr_ctl_mutex); ++ switch (cmd) { ++ case VROOT_SET_DEV: ++ err = vroot_set_dev(vr, file, inode->i_bdev, arg); ++ break; ++ case VROOT_CLR_DEV: ++ err = vroot_clr_dev(vr, file, inode->i_bdev); ++ break; ++ default: ++ err = -EINVAL; ++ break; ++ } ++ up(&vr->vr_ctl_mutex); ++ return err; ++} ++ ++static int vr_open(struct inode *inode, struct file *file) ++{ ++ struct vroot_device *vr = inode->i_bdev->bd_disk->private_data; ++ ++ down(&vr->vr_ctl_mutex); ++ vr->vr_refcnt++; ++ up(&vr->vr_ctl_mutex); ++ return 0; ++} ++ ++static int vr_release(struct inode *inode, struct file *file) ++{ ++ struct vroot_device *vr = inode->i_bdev->bd_disk->private_data; ++ ++ down(&vr->vr_ctl_mutex); ++ --vr->vr_refcnt; ++ up(&vr->vr_ctl_mutex); ++ return 0; ++} ++ ++static struct block_device_operations vr_fops = { ++ .owner = THIS_MODULE, ++ .open = vr_open, ++ .release = vr_release, ++ .ioctl = vr_ioctl, ++}; ++ ++struct block_device *__vroot_get_real_bdev(struct block_device *bdev) ++{ ++ struct inode *inode = bdev->bd_inode; ++ struct vroot_device *vr; ++ struct block_device *real_bdev; ++ int minor = iminor(inode); ++ ++ vr = &vroot_dev[minor]; ++ real_bdev = vr->vr_device; ++ ++ vxdprintk(VXD_CBIT(misc, 0), ++ "vroot[%d]_get_real_bdev: dev=" VXF_DEV, ++ vr->vr_number, VXD_DEV(real_bdev)); ++ ++ if (vr->vr_state != Vr_bound) ++ return ERR_PTR(-ENXIO); ++ ++ __iget(real_bdev->bd_inode); ++ return real_bdev; ++} ++ ++/* ++ * And now the modules code and kernel interface. ++ */ ++ ++module_param(max_vroot, int, 0); ++ ++MODULE_PARM_DESC(max_vroot, "Maximum number of vroot devices (1-256)"); ++MODULE_LICENSE("GPL"); ++MODULE_ALIAS_BLOCKDEV_MAJOR(VROOT_MAJOR); ++ ++MODULE_AUTHOR ("Herbert Pötzl"); ++MODULE_DESCRIPTION ("Virtual Root Device Mapper"); ++ ++ ++int __init vroot_init(void) ++{ ++ int err, i; ++ ++ if (max_vroot < 1 || max_vroot > 256) { ++ max_vroot = MAX_VROOT_DEFAULT; ++ printk(KERN_WARNING "vroot: invalid max_vroot " ++ "(must be between 1 and 256), " ++ "using default (%d)\n", max_vroot); ++ } ++ ++ if (register_blkdev(VROOT_MAJOR, "vroot")) ++ return -EIO; ++ ++ err = -ENOMEM; ++ vroot_dev = kmalloc(max_vroot * sizeof(struct vroot_device), GFP_KERNEL); ++ if (!vroot_dev) ++ goto out_mem1; ++ memset(vroot_dev, 0, max_vroot * sizeof(struct vroot_device)); ++ ++ disks = kmalloc(max_vroot * sizeof(struct gendisk *), GFP_KERNEL); ++ if (!disks) ++ goto out_mem2; ++ ++ for (i = 0; i < max_vroot; i++) { ++ disks[i] = alloc_disk(1); ++ if (!disks[i]) ++ goto out_mem3; ++ } ++ ++ devfs_mk_dir("vroot"); ++ ++ for (i = 0; i < max_vroot; i++) { ++ struct vroot_device *vr = &vroot_dev[i]; ++ struct gendisk *disk = disks[i]; ++ ++ memset(vr, 0, sizeof(*vr)); ++ init_MUTEX(&vr->vr_ctl_mutex); ++ vr->vr_number = i; ++ disk->major = VROOT_MAJOR; ++ disk->first_minor = i; ++ disk->fops = &vr_fops; ++ sprintf(disk->disk_name, "vroot%d", i); ++ sprintf(disk->devfs_name, "vroot/%d", i); ++ disk->private_data = vr; ++ } ++ ++ err = register_vroot_grb(&__vroot_get_real_bdev); ++ if (err) ++ goto out_reg; ++ ++ for (i = 0; i < max_vroot; i++) ++ add_disk(disks[i]); ++ printk(KERN_INFO "vroot: loaded (max %d devices)\n", max_vroot); ++ return 0; ++ ++out_reg: ++ devfs_remove("vroot"); ++out_mem3: ++ while (i--) ++ put_disk(disks[i]); ++ kfree(disks); ++out_mem2: ++ kfree(vroot_dev); ++out_mem1: ++ unregister_blkdev(VROOT_MAJOR, "vroot"); ++ printk(KERN_ERR "vroot: ran out of memory\n"); ++ return err; ++} ++ ++void vroot_exit(void) ++{ ++ int i; ++ ++ if (unregister_vroot_grb(&__vroot_get_real_bdev)) ++ printk(KERN_WARNING "vroot: cannot unregister grb\n"); ++ ++ for (i = 0; i < max_vroot; i++) { ++ del_gendisk(disks[i]); ++ put_disk(disks[i]); ++ } ++ devfs_remove("vroot"); ++ if (unregister_blkdev(VROOT_MAJOR, "vroot")) ++ printk(KERN_WARNING "vroot: cannot unregister blkdev\n"); ++ ++ kfree(disks); ++ kfree(vroot_dev); ++} ++ ++module_init(vroot_init); ++module_exit(vroot_exit); ++ ++#ifndef MODULE ++ ++static int __init max_vroot_setup(char *str) ++{ ++ max_vroot = simple_strtol(str, NULL, 0); ++ return 1; ++} ++ ++__setup("max_vroot=", max_vroot_setup); ++ ++#endif ++ +Index: vserver-sources-2.0.2_2.6.15.4/drivers/char/random.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/drivers/char/random.c ++++ vserver-sources-2.0.2_2.6.15.4/drivers/char/random.c +@@ -1174,7 +1174,7 @@ static char sysctl_bootid[16]; + static int proc_do_uuid(ctl_table *table, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos) + { +- ctl_table fake_table; ++ ctl_table fake_table = {0}; + unsigned char buf[64], tmp_uuid[16], *uuid; + + uuid = table->data; +Index: vserver-sources-2.0.2_2.6.15.4/drivers/char/tty_io.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/drivers/char/tty_io.c ++++ vserver-sources-2.0.2_2.6.15.4/drivers/char/tty_io.c +@@ -103,6 +103,7 @@ + #include <linux/vt_kern.h> + #include <linux/selection.h> + #include <linux/devfs_fs_kernel.h> ++#include <linux/vs_cvirt.h> + + #include <linux/kmod.h> + +@@ -2152,13 +2153,16 @@ static int tiocsctty(struct tty_struct * + + static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) + { ++ pid_t pgrp; + /* + * (tty == real_tty) is a cheap way of + * testing if the tty is NOT a master pty. + */ + if (tty == real_tty && current->signal->tty != real_tty) + return -ENOTTY; +- return put_user(real_tty->pgrp, p); ++ ++ pgrp = vx_map_pid(real_tty->pgrp); ++ return put_user(pgrp, p); + } + + static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p) +@@ -2176,6 +2180,8 @@ static int tiocspgrp(struct tty_struct * + return -ENOTTY; + if (get_user(pgrp, p)) + return -EFAULT; ++ ++ pgrp = vx_rmap_pid(pgrp); + if (pgrp < 0) + return -EINVAL; + if (session_of_pgrp(pgrp) != current->signal->session) +Index: vserver-sources-2.0.2_2.6.15.4/drivers/infiniband/core/uverbs_mem.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/drivers/infiniband/core/uverbs_mem.c ++++ vserver-sources-2.0.2_2.6.15.4/drivers/infiniband/core/uverbs_mem.c +@@ -36,6 +36,7 @@ + + #include <linux/mm.h> + #include <linux/dma-mapping.h> ++#include <linux/vs_memory.h> + + #include "uverbs.h" + +@@ -161,7 +162,7 @@ out: + if (ret < 0) + __ib_umem_release(dev, mem, 0); + else +- current->mm->locked_vm = locked; ++ vx_vmlocked_sub(current->mm, current->mm->locked_vm - locked); + + up_write(¤t->mm->mmap_sem); + free_page((unsigned long) page_list); +@@ -174,8 +175,8 @@ void ib_umem_release(struct ib_device *d + __ib_umem_release(dev, umem, 1); + + down_write(¤t->mm->mmap_sem); +- current->mm->locked_vm -= +- PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT; ++ vx_vmlocked_sub(current->mm, ++ PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT); + up_write(¤t->mm->mmap_sem); + } + +@@ -184,7 +185,7 @@ static void ib_umem_account(void *work_p + struct ib_umem_account_work *work = work_ptr; + + down_write(&work->mm->mmap_sem); +- work->mm->locked_vm -= work->diff; ++ vx_vmlocked_sub(work->mm, work->diff); + up_write(&work->mm->mmap_sem); + mmput(work->mm); + kfree(work); +Index: vserver-sources-2.0.2_2.6.15.4/fs/attr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/attr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/attr.c +@@ -15,6 +15,9 @@ + #include <linux/quotaops.h> + #include <linux/security.h> + #include <linux/time.h> ++#include <linux/proc_fs.h> ++#include <linux/devpts_fs.h> ++#include <linux/vserver/debug.h> + + /* Taken over from the old code... */ + +@@ -56,6 +59,28 @@ int inode_change_ok(struct inode *inode, + if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER)) + goto error; + } ++ ++ /* Check for evil vserver activity */ ++ if (vx_check(0, VX_ADMIN)) ++ goto fine; ++ ++ if (IS_BARRIER(inode)) { ++ vxwprintk(1, "xid=%d messing with the barrier.", ++ vx_current_xid()); ++ goto error; ++ } ++ switch (inode->i_sb->s_magic) { ++ case PROC_SUPER_MAGIC: ++ vxwprintk(1, "xid=%d messing with the procfs.", ++ vx_current_xid()); ++ goto error; ++ case DEVPTS_SUPER_MAGIC: ++ if (vx_check(inode->i_xid, VX_IDENT)) ++ goto fine; ++ vxwprintk(1, "xid=%d messing with the devpts.", ++ vx_current_xid()); ++ goto error; ++ } + fine: + retval = 0; + error: +@@ -87,6 +112,8 @@ int inode_setattr(struct inode * inode, + inode->i_uid = attr->ia_uid; + if (ia_valid & ATTR_GID) + inode->i_gid = attr->ia_gid; ++ if ((ia_valid & ATTR_XID) && IS_TAGXID(inode)) ++ inode->i_xid = attr->ia_xid; + if (ia_valid & ATTR_ATIME) + inode->i_atime = timespec_trunc(attr->ia_atime, + inode->i_sb->s_time_gran); +@@ -161,7 +188,8 @@ int notify_change(struct dentry * dentry + error = security_inode_setattr(dentry, attr); + if (!error) { + if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || +- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) ++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) || ++ (ia_valid & ATTR_XID && attr->ia_xid != inode->i_xid)) + error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0; + if (!error) + error = inode_setattr(inode, attr); +Index: vserver-sources-2.0.2_2.6.15.4/fs/binfmt_aout.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/binfmt_aout.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/binfmt_aout.c +@@ -24,6 +24,7 @@ + #include <linux/binfmts.h> + #include <linux/personality.h> + #include <linux/init.h> ++#include <linux/vs_memory.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +Index: vserver-sources-2.0.2_2.6.15.4/fs/binfmt_elf.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/binfmt_elf.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/binfmt_elf.c +@@ -38,6 +38,7 @@ + #include <linux/security.h> + #include <linux/syscalls.h> + #include <linux/random.h> ++#include <linux/vs_memory.h> + + #include <asm/uaccess.h> + #include <asm/param.h> +Index: vserver-sources-2.0.2_2.6.15.4/fs/binfmt_flat.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/binfmt_flat.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/binfmt_flat.c +@@ -36,6 +36,7 @@ + #include <linux/personality.h> + #include <linux/init.h> + #include <linux/flat.h> ++#include <linux/vs_memory.h> + + #include <asm/byteorder.h> + #include <asm/system.h> +Index: vserver-sources-2.0.2_2.6.15.4/fs/binfmt_som.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/binfmt_som.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/binfmt_som.c +@@ -28,6 +28,7 @@ + #include <linux/shm.h> + #include <linux/personality.h> + #include <linux/init.h> ++#include <linux/vs_memory.h> + + #include <asm/uaccess.h> + #include <asm/pgtable.h> +Index: vserver-sources-2.0.2_2.6.15.4/fs/devpts/inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/devpts/inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/devpts/inode.c +@@ -19,7 +19,19 @@ + #include <linux/tty.h> + #include <linux/devpts_fs.h> + +-#define DEVPTS_SUPER_MAGIC 0x1cd1 ++ ++static int devpts_permission(struct inode *inode, int mask, struct nameidata *nd) ++{ ++ int ret = -EACCES; ++ ++ if (vx_check(inode->i_xid, VX_IDENT)) ++ ret = generic_permission(inode, mask, NULL); ++ return ret; ++} ++ ++static struct inode_operations devpts_file_inode_operations = { ++ .permission = devpts_permission, ++}; + + static struct vfsmount *devpts_mnt; + static struct dentry *devpts_root; +@@ -69,6 +81,24 @@ static int devpts_remount(struct super_b + return 0; + } + ++static int devpts_filter(struct dentry *de) ++{ ++ return vx_check(de->d_inode->i_xid, VX_IDENT); ++} ++ ++static int devpts_readdir(struct file * filp, void * dirent, filldir_t filldir) ++{ ++ return dcache_readdir_filter(filp, dirent, filldir, devpts_filter); ++} ++ ++static struct file_operations devpts_dir_operations = { ++ .open = dcache_dir_open, ++ .release = dcache_dir_close, ++ .llseek = dcache_dir_lseek, ++ .read = generic_read_dir, ++ .readdir = devpts_readdir, ++}; ++ + static struct super_operations devpts_sops = { + .statfs = simple_statfs, + .remount_fs = devpts_remount, +@@ -95,8 +125,9 @@ devpts_fill_super(struct super_block *s, + inode->i_uid = inode->i_gid = 0; + inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR; + inode->i_op = &simple_dir_inode_operations; +- inode->i_fop = &simple_dir_operations; ++ inode->i_fop = &devpts_dir_operations; + inode->i_nlink = 2; ++ inode->i_xid = vx_current_xid(); + + devpts_root = s->s_root = d_alloc_root(inode); + if (s->s_root) +@@ -155,6 +186,8 @@ int devpts_pty_new(struct tty_struct *tt + inode->i_gid = config.setgid ? config.gid : current->fsgid; + inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; + init_special_inode(inode, S_IFCHR|config.mode, device); ++ inode->i_xid = vx_current_xid(); ++ inode->i_op = &devpts_file_inode_operations; + inode->u.generic_ip = tty; + + dentry = get_node(number); +Index: vserver-sources-2.0.2_2.6.15.4/fs/exec.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/exec.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/exec.c +@@ -49,6 +49,7 @@ + #include <linux/rmap.h> + #include <linux/acct.h> + #include <linux/cn_proc.h> ++#include <linux/vs_memory.h> + + #include <asm/uaccess.h> + #include <asm/mmu_context.h> +@@ -436,7 +437,8 @@ int setup_arg_pages(struct linux_binprm + kmem_cache_free(vm_area_cachep, mpnt); + return ret; + } +- mm->stack_vm = mm->total_vm = vma_pages(mpnt); ++ vx_vmpages_sub(mm, mm->total_vm - vma_pages(mpnt)); ++ mm->stack_vm = mm->total_vm; + } + + for (i = 0 ; i < MAX_ARG_PAGES ; i++) { +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/balloc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/balloc.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/balloc.c +@@ -16,6 +16,7 @@ + #include <linux/quotaops.h> + #include <linux/sched.h> + #include <linux/buffer_head.h> ++#include <linux/vs_dlimit.h> + + /* + * balloc.c contains the blocks allocation and deallocation routines +@@ -108,6 +109,8 @@ static int reserve_blocks(struct super_b + free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); + root_blocks = le32_to_cpu(es->s_r_blocks_count); + ++ DLIMIT_ADJUST_BLOCK(sb, vx_current_xid(), &free_blocks, &root_blocks); ++ + if (free_blocks < count) + count = free_blocks; + +@@ -258,6 +261,7 @@ do_more: + } + error_return: + brelse(bitmap_bh); ++ DLIMIT_FREE_BLOCK(inode, freed); + release_blocks(sb, freed); + DQUOT_FREE_BLOCK(inode, freed); + } +@@ -361,6 +365,10 @@ int ext2_new_block(struct inode *inode, + *err = -ENOSPC; + goto out_dquot; + } ++ if (DLIMIT_ALLOC_BLOCK(inode, es_alloc)) { ++ *err = -ENOSPC; ++ goto out_dlimit; ++ } + + ext2_debug ("goal=%lu.\n", goal); + +@@ -508,6 +516,8 @@ got_block: + *err = 0; + out_release: + group_release_blocks(sb, group_no, desc, gdp_bh, group_alloc); ++ DLIMIT_FREE_BLOCK(inode, es_alloc); ++out_dlimit: + release_blocks(sb, es_alloc); + out_dquot: + DQUOT_FREE_BLOCK(inode, dq_alloc); +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/ext2.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/ext2.h ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/ext2.h +@@ -162,6 +162,7 @@ extern struct file_operations ext2_xip_f + extern struct address_space_operations ext2_aops; + extern struct address_space_operations ext2_aops_xip; + extern struct address_space_operations ext2_nobh_aops; ++extern int ext2_sync_flags(struct inode *inode); + + /* namei.c */ + extern struct inode_operations ext2_dir_inode_operations; +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/file.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/file.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/file.c +@@ -79,4 +79,5 @@ struct inode_operations ext2_file_inode_ + #endif + .setattr = ext2_setattr, + .permission = ext2_permission, ++ .sync_flags = ext2_sync_flags, + }; +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/ialloc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/ialloc.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/ialloc.c +@@ -18,6 +18,8 @@ + #include <linux/backing-dev.h> + #include <linux/buffer_head.h> + #include <linux/random.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/xid.h> + #include "ext2.h" + #include "xattr.h" + #include "acl.h" +@@ -126,6 +128,7 @@ void ext2_free_inode (struct inode * ino + ext2_xattr_delete_inode(inode); + DQUOT_FREE_INODE(inode); + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + } + + es = EXT2_SB(sb)->s_es; +@@ -465,6 +468,11 @@ struct inode *ext2_new_inode(struct inod + if (!inode) + return ERR_PTR(-ENOMEM); + ++ inode->i_xid = vx_current_fsxid(sb); ++ if (DLIMIT_ALLOC_INODE(inode)) { ++ err = -ENOSPC; ++ goto fail_dlim; ++ } + ei = EXT2_I(inode); + sbi = EXT2_SB(sb); + es = sbi->s_es; +@@ -579,7 +587,8 @@ got: + inode->i_blocks = 0; + inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; + memset(ei->i_data, 0, sizeof(ei->i_data)); +- ei->i_flags = EXT2_I(dir)->i_flags & ~EXT2_BTREE_FL; ++ ei->i_flags = EXT2_I(dir)->i_flags & ++ ~(EXT2_BTREE_FL|EXT2_IUNLINK_FL|EXT2_BARRIER_FL); + if (S_ISLNK(mode)) + ei->i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL); + /* dirsync is only applied to directories */ +@@ -605,7 +614,7 @@ got: + insert_inode_hash(inode); + + if (DQUOT_ALLOC_INODE(inode)) { +- err = -ENOSPC; ++ err = -EDQUOT; + goto fail_drop; + } + +@@ -627,12 +636,15 @@ fail_free_drop: + + fail_drop: + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + inode->i_flags |= S_NOQUOTA; + inode->i_nlink = 0; + iput(inode); + return ERR_PTR(err); + + fail: ++ DLIMIT_FREE_INODE(inode); ++fail_dlim: + make_bad_inode(inode); + iput(inode); + return ERR_PTR(err); +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/inode.c +@@ -31,6 +31,7 @@ + #include <linux/writeback.h> + #include <linux/buffer_head.h> + #include <linux/mpage.h> ++#include <linux/vserver/xid.h> + #include "ext2.h" + #include "acl.h" + #include "xip.h" +@@ -66,6 +67,8 @@ void ext2_put_inode(struct inode *inode) + ext2_discard_prealloc(inode); + } + ++static void ext2_truncate_nocheck (struct inode * inode); ++ + /* + * Called at the last iput() if i_nlink is zero. + */ +@@ -81,7 +84,7 @@ void ext2_delete_inode (struct inode * i + + inode->i_size = 0; + if (inode->i_blocks) +- ext2_truncate (inode); ++ ext2_truncate_nocheck(inode); + ext2_free_inode (inode); + + return; +@@ -906,7 +909,7 @@ static void ext2_free_branches(struct in + ext2_free_data(inode, p, q); + } + +-void ext2_truncate (struct inode * inode) ++static void ext2_truncate_nocheck(struct inode * inode) + { + __le32 *i_data = EXT2_I(inode)->i_data; + int addr_per_block = EXT2_ADDR_PER_BLOCK(inode->i_sb); +@@ -923,8 +926,6 @@ void ext2_truncate (struct inode * inode + return; + if (ext2_inode_is_fast_symlink(inode)) + return; +- if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) +- return; + + ext2_discard_prealloc(inode); + +@@ -1048,29 +1049,81 @@ Egdp: + return ERR_PTR(-EIO); + } + ++void ext2_truncate (struct inode * inode) ++{ ++ if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) ++ return; ++ ext2_truncate_nocheck(inode); ++} ++ + void ext2_set_inode_flags(struct inode *inode) + { + unsigned int flags = EXT2_I(inode)->i_flags; + +- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC); ++ inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER | ++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); ++ ++ if (flags & EXT2_IMMUTABLE_FL) ++ inode->i_flags |= S_IMMUTABLE; ++ if (flags & EXT2_IUNLINK_FL) ++ inode->i_flags |= S_IUNLINK; ++ if (flags & EXT2_BARRIER_FL) ++ inode->i_flags |= S_BARRIER; ++ + if (flags & EXT2_SYNC_FL) + inode->i_flags |= S_SYNC; + if (flags & EXT2_APPEND_FL) + inode->i_flags |= S_APPEND; +- if (flags & EXT2_IMMUTABLE_FL) +- inode->i_flags |= S_IMMUTABLE; + if (flags & EXT2_NOATIME_FL) + inode->i_flags |= S_NOATIME; + if (flags & EXT2_DIRSYNC_FL) + inode->i_flags |= S_DIRSYNC; + } + ++int ext2_sync_flags(struct inode *inode) ++{ ++ unsigned int oldflags, newflags; ++ ++ oldflags = EXT2_I(inode)->i_flags; ++ newflags = oldflags & ~(EXT2_APPEND_FL | ++ EXT2_IMMUTABLE_FL | EXT2_IUNLINK_FL | ++ EXT2_BARRIER_FL | EXT2_NOATIME_FL | ++ EXT2_SYNC_FL | EXT2_DIRSYNC_FL); ++ ++ if (IS_APPEND(inode)) ++ newflags |= EXT2_APPEND_FL; ++ if (IS_IMMUTABLE(inode)) ++ newflags |= EXT2_IMMUTABLE_FL; ++ if (IS_IUNLINK(inode)) ++ newflags |= EXT2_IUNLINK_FL; ++ if (IS_BARRIER(inode)) ++ newflags |= EXT2_BARRIER_FL; ++ ++ /* we do not want to copy superblock flags */ ++ if (inode->i_flags & S_NOATIME) ++ newflags |= EXT2_NOATIME_FL; ++ if (inode->i_flags & S_SYNC) ++ newflags |= EXT2_SYNC_FL; ++ if (inode->i_flags & S_DIRSYNC) ++ newflags |= EXT2_DIRSYNC_FL; ++ ++ if (oldflags ^ newflags) { ++ EXT2_I(inode)->i_flags = newflags; ++ inode->i_ctime = CURRENT_TIME; ++ mark_inode_dirty(inode); ++ } ++ ++ return 0; ++} ++ + void ext2_read_inode (struct inode * inode) + { + struct ext2_inode_info *ei = EXT2_I(inode); + ino_t ino = inode->i_ino; + struct buffer_head * bh; + struct ext2_inode * raw_inode = ext2_get_inode(inode->i_sb, ino, &bh); ++ uid_t uid; ++ gid_t gid; + int n; + + #ifdef CONFIG_EXT2_FS_POSIX_ACL +@@ -1081,12 +1134,17 @@ void ext2_read_inode (struct inode * ino + goto bad_inode; + + inode->i_mode = le16_to_cpu(raw_inode->i_mode); +- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); +- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); ++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); ++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); + if (!(test_opt (inode->i_sb, NO_UID32))) { +- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16; +- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16; ++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16; ++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16; + } ++ inode->i_uid = INOXID_UID(XID_TAG(inode), uid, gid); ++ inode->i_gid = INOXID_GID(XID_TAG(inode), uid, gid); ++ inode->i_xid = INOXID_XID(XID_TAG(inode), uid, gid, ++ le16_to_cpu(raw_inode->i_raw_xid)); ++ + inode->i_nlink = le16_to_cpu(raw_inode->i_links_count); + inode->i_size = le32_to_cpu(raw_inode->i_size); + inode->i_atime.tv_sec = le32_to_cpu(raw_inode->i_atime); +@@ -1184,8 +1242,8 @@ static int ext2_update_inode(struct inod + struct ext2_inode_info *ei = EXT2_I(inode); + struct super_block *sb = inode->i_sb; + ino_t ino = inode->i_ino; +- uid_t uid = inode->i_uid; +- gid_t gid = inode->i_gid; ++ uid_t uid = XIDINO_UID(XID_TAG(inode), inode->i_uid, inode->i_xid); ++ gid_t gid = XIDINO_GID(XID_TAG(inode), inode->i_gid, inode->i_xid); + struct buffer_head * bh; + struct ext2_inode * raw_inode = ext2_get_inode(sb, ino, &bh); + int n; +@@ -1220,6 +1278,9 @@ static int ext2_update_inode(struct inod + raw_inode->i_uid_high = 0; + raw_inode->i_gid_high = 0; + } ++#ifdef CONFIG_INOXID_INTERN ++ raw_inode->i_raw_xid = cpu_to_le16(inode->i_xid); ++#endif + raw_inode->i_links_count = cpu_to_le16(inode->i_nlink); + raw_inode->i_size = cpu_to_le32(inode->i_size); + raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec); +@@ -1306,11 +1367,13 @@ int ext2_setattr(struct dentry *dentry, + if (error) + return error; + if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) || +- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) { ++ (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) || ++ (iattr->ia_valid & ATTR_XID && iattr->ia_xid != inode->i_xid)) { + error = DQUOT_TRANSFER(inode, iattr) ? -EDQUOT : 0; + if (error) + return error; + } ++ + error = inode_setattr(inode, iattr); + if (!error && (iattr->ia_valid & ATTR_MODE)) + error = ext2_acl_chmod(inode); +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/ioctl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/ioctl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/ioctl.c +@@ -10,6 +10,7 @@ + #include "ext2.h" + #include <linux/time.h> + #include <linux/sched.h> ++#include <linux/mount.h> + #include <asm/current.h> + #include <asm/uaccess.h> + +@@ -29,7 +30,8 @@ int ext2_ioctl (struct inode * inode, st + case EXT2_IOC_SETFLAGS: { + unsigned int oldflags; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) +@@ -49,7 +51,9 @@ int ext2_ioctl (struct inode * inode, st + * + * This test looks nicer. Thanks to Pauline Middelink + */ +- if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) { ++ if ((oldflags & EXT2_IMMUTABLE_FL) || ++ ((flags ^ oldflags) & (EXT2_APPEND_FL | ++ EXT2_IMMUTABLE_FL | EXT2_IUNLINK_FL))) { + if (!capable(CAP_LINUX_IMMUTABLE)) + return -EPERM; + } +@@ -68,7 +72,8 @@ int ext2_ioctl (struct inode * inode, st + case EXT2_IOC_SETVERSION: + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + return -EPERM; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + if (get_user(inode->i_generation, (int __user *) arg)) + return -EFAULT; +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/namei.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/namei.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/namei.c +@@ -31,6 +31,7 @@ + */ + + #include <linux/pagemap.h> ++#include <linux/vserver/xid.h> + #include "ext2.h" + #include "xattr.h" + #include "acl.h" +@@ -82,6 +83,7 @@ static struct dentry *ext2_lookup(struct + inode = iget(dir->i_sb, ino); + if (!inode) + return ERR_PTR(-EACCES); ++ vx_propagate_xid(nd, inode); + } + if (inode) + return d_splice_alias(inode, dentry); +@@ -410,6 +412,7 @@ struct inode_operations ext2_dir_inode_o + #endif + .setattr = ext2_setattr, + .permission = ext2_permission, ++ .sync_flags = ext2_sync_flags, + }; + + struct inode_operations ext2_special_inode_operations = { +@@ -421,4 +424,5 @@ struct inode_operations ext2_special_ino + #endif + .setattr = ext2_setattr, + .permission = ext2_permission, ++ .sync_flags = ext2_sync_flags, + }; +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/super.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/super.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/super.c +@@ -284,7 +284,7 @@ enum { + Opt_err_ro, Opt_nouid32, Opt_nocheck, Opt_debug, + Opt_oldalloc, Opt_orlov, Opt_nobh, Opt_user_xattr, Opt_nouser_xattr, + Opt_acl, Opt_noacl, Opt_xip, Opt_ignore, Opt_err, Opt_quota, +- Opt_usrquota, Opt_grpquota ++ Opt_usrquota, Opt_grpquota, Opt_tagxid + }; + + static match_table_t tokens = { +@@ -312,6 +312,7 @@ static match_table_t tokens = { + {Opt_acl, "acl"}, + {Opt_noacl, "noacl"}, + {Opt_xip, "xip"}, ++ {Opt_tagxid, "tagxid"}, + {Opt_grpquota, "grpquota"}, + {Opt_ignore, "noquota"}, + {Opt_quota, "quota"}, +@@ -375,6 +376,11 @@ static int parse_options (char * options + case Opt_nouid32: + set_opt (sbi->s_mount_opt, NO_UID32); + break; ++#ifndef CONFIG_INOXID_NONE ++ case Opt_tagxid: ++ set_opt (sbi->s_mount_opt, TAGXID); ++ break; ++#endif + case Opt_nocheck: + clear_opt (sbi->s_mount_opt, CHECK); + break; +@@ -676,6 +682,8 @@ static int ext2_fill_super(struct super_ + if (!parse_options ((char *) data, sbi)) + goto failed_mount; + ++ if (EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_TAGXID) ++ sb->s_flags |= MS_TAGXID; + sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | + ((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? + MS_POSIXACL : 0); +@@ -985,6 +993,13 @@ static int ext2_remount (struct super_bl + goto restore_opts; + } + ++ if ((sbi->s_mount_opt & EXT2_MOUNT_TAGXID) && ++ !(sb->s_flags & MS_TAGXID)) { ++ printk("EXT2-fs: %s: tagxid not permitted on remount.\n", ++ sb->s_id); ++ return -EINVAL; ++ } ++ + sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | + ((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); + +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/symlink.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/symlink.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/symlink.c +@@ -38,6 +38,7 @@ struct inode_operations ext2_symlink_ino + .listxattr = ext2_listxattr, + .removexattr = generic_removexattr, + #endif ++ .sync_flags = ext2_sync_flags, + }; + + struct inode_operations ext2_fast_symlink_inode_operations = { +@@ -49,4 +50,5 @@ struct inode_operations ext2_fast_symlin + .listxattr = ext2_listxattr, + .removexattr = generic_removexattr, + #endif ++ .sync_flags = ext2_sync_flags, + }; +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext2/xattr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext2/xattr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext2/xattr.c +@@ -60,6 +60,7 @@ + #include <linux/mbcache.h> + #include <linux/quotaops.h> + #include <linux/rwsem.h> ++#include <linux/vs_dlimit.h> + #include "ext2.h" + #include "xattr.h" + #include "acl.h" +@@ -649,8 +650,12 @@ ext2_xattr_set2(struct inode *inode, str + the inode. */ + ea_bdebug(new_bh, "reusing block"); + ++ error = -ENOSPC; ++ if (DLIMIT_ALLOC_BLOCK(inode, 1)) ++ goto cleanup; + error = -EDQUOT; + if (DQUOT_ALLOC_BLOCK(inode, 1)) { ++ DLIMIT_FREE_BLOCK(inode, 1); + unlock_buffer(new_bh); + goto cleanup; + } +@@ -744,6 +749,7 @@ ext2_xattr_set2(struct inode *inode, str + le32_to_cpu(HDR(old_bh)->h_refcount) - 1); + if (ce) + mb_cache_entry_release(ce); ++ DLIMIT_FREE_BLOCK(inode, 1); + DQUOT_FREE_BLOCK(inode, 1); + mark_buffer_dirty(old_bh); + ea_bdebug(old_bh, "refcount now=%d", +@@ -804,6 +810,7 @@ ext2_xattr_delete_inode(struct inode *in + mark_buffer_dirty(bh); + if (IS_SYNC(inode)) + sync_dirty_buffer(bh); ++ DLIMIT_FREE_BLOCK(inode, 1); + DQUOT_FREE_BLOCK(inode, 1); + } + ea_bdebug(bh, "refcount now=%d", le32_to_cpu(HDR(bh)->h_refcount) - 1); +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/balloc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/balloc.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/balloc.c +@@ -19,6 +19,7 @@ + #include <linux/ext3_jbd.h> + #include <linux/quotaops.h> + #include <linux/buffer_head.h> ++#include <linux/vs_dlimit.h> + + #include "bitmap.h" + +@@ -505,8 +506,10 @@ void ext3_free_blocks(handle_t *handle, + return; + } + ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks); +- if (dquot_freed_blocks) ++ if (dquot_freed_blocks) { ++ DLIMIT_FREE_BLOCK(inode, dquot_freed_blocks); + DQUOT_FREE_BLOCK(inode, dquot_freed_blocks); ++ } + return; + } + +@@ -1117,18 +1120,32 @@ out: + return ret; + } + +-static int ext3_has_free_blocks(struct ext3_sb_info *sbi) ++static int ext3_has_free_blocks(struct super_block *sb) + { +- int free_blocks, root_blocks; ++ struct ext3_sb_info *sbi = EXT3_SB(sb); ++ int free_blocks, root_blocks, cond; + + free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter); + root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count); +- if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) && ++ ++ vxdprintk(VXD_CBIT(dlim, 3), ++ "ext3_has_free_blocks(%p): free=%u, root=%u", ++ sb, free_blocks, root_blocks); ++ ++ DLIMIT_ADJUST_BLOCK(sb, vx_current_xid(), &free_blocks, &root_blocks); ++ ++ cond = (free_blocks < root_blocks + 1 && ++ !capable(CAP_SYS_RESOURCE) && + sbi->s_resuid != current->fsuid && +- (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) { +- return 0; +- } +- return 1; ++ (sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))); ++ ++ vxdprintk(VXD_CBIT(dlim, 3), ++ "ext3_has_free_blocks(%p): %u<%u+1, %c, %u!=%u r=%d", ++ sb, free_blocks, root_blocks, ++ !capable(CAP_SYS_RESOURCE)?'1':'0', ++ sbi->s_resuid, current->fsuid, cond?0:1); ++ ++ return (cond ? 0 : 1); + } + + /* +@@ -1139,7 +1156,7 @@ static int ext3_has_free_blocks(struct e + */ + int ext3_should_retry_alloc(struct super_block *sb, int *retries) + { +- if (!ext3_has_free_blocks(EXT3_SB(sb)) || (*retries)++ > 3) ++ if (!ext3_has_free_blocks(sb) || (*retries)++ > 3) + return 0; + + jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id); +@@ -1194,6 +1211,8 @@ int ext3_new_block(handle_t *handle, str + *errp = -EDQUOT; + return 0; + } ++ if (DLIMIT_ALLOC_BLOCK(inode, 1)) ++ goto out_dlimit; + + sbi = EXT3_SB(sb); + es = EXT3_SB(sb)->s_es; +@@ -1210,7 +1229,7 @@ int ext3_new_block(handle_t *handle, str + if (block_i && ((windowsz = block_i->rsv_window_node.rsv_goal_size) > 0)) + my_rsv = &block_i->rsv_window_node; + +- if (!ext3_has_free_blocks(sbi)) { ++ if (!ext3_has_free_blocks(sb)) { + *errp = -ENOSPC; + goto out; + } +@@ -1394,6 +1413,9 @@ allocated: + io_error: + *errp = -EIO; + out: ++ if (!performed_allocation) ++ DLIMIT_FREE_BLOCK(inode, 1); ++out_dlimit: + if (fatal) { + *errp = fatal; + ext3_std_error(sb, fatal); +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/file.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/file.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/file.c +@@ -131,5 +131,6 @@ struct inode_operations ext3_file_inode_ + .removexattr = generic_removexattr, + #endif + .permission = ext3_permission, ++ .sync_flags = ext3_sync_flags, + }; + +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/ialloc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/ialloc.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/ialloc.c +@@ -23,6 +23,8 @@ + #include <linux/buffer_head.h> + #include <linux/random.h> + #include <linux/bitops.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/xid.h> + + #include <asm/byteorder.h> + +@@ -128,6 +130,7 @@ void ext3_free_inode (handle_t *handle, + ext3_xattr_delete_inode(handle, inode); + DQUOT_FREE_INODE(inode); + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + + is_directory = S_ISDIR(inode->i_mode); + +@@ -444,6 +447,12 @@ struct inode *ext3_new_inode(handle_t *h + inode = new_inode(sb); + if (!inode) + return ERR_PTR(-ENOMEM); ++ ++ inode->i_xid = vx_current_fsxid(sb); ++ if (DLIMIT_ALLOC_INODE(inode)) { ++ err = -ENOSPC; ++ goto out_dlimit; ++ } + ei = EXT3_I(inode); + + sbi = EXT3_SB(sb); +@@ -566,7 +575,8 @@ got: + ei->i_dir_start_lookup = 0; + ei->i_disksize = 0; + +- ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL; ++ ei->i_flags = EXT3_I(dir)->i_flags & ++ ~(EXT3_INDEX_FL|EXT3_IUNLINK_FL|EXT3_BARRIER_FL); + if (S_ISLNK(mode)) + ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL); + /* dirsync only applies to directories */ +@@ -621,6 +631,8 @@ got: + fail: + ext3_std_error(sb, err); + out: ++ DLIMIT_FREE_INODE(inode); ++out_dlimit: + iput(inode); + ret = ERR_PTR(err); + really_out: +@@ -632,6 +644,7 @@ fail_free_drop: + + fail_drop: + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + inode->i_flags |= S_NOQUOTA; + inode->i_nlink = 0; + iput(inode); +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/inode.c +@@ -36,6 +36,7 @@ + #include <linux/writeback.h> + #include <linux/mpage.h> + #include <linux/uio.h> ++#include <linux/vserver/xid.h> + #include "xattr.h" + #include "acl.h" + +@@ -180,6 +181,8 @@ static int ext3_journal_test_restart(han + return ext3_journal_restart(handle, blocks_for_truncate(inode)); + } + ++static void ext3_truncate_nocheck (struct inode *inode); ++ + /* + * Called at the last iput() if i_nlink is zero. + */ +@@ -205,7 +208,7 @@ void ext3_delete_inode (struct inode * i + handle->h_sync = 1; + inode->i_size = 0; + if (inode->i_blocks) +- ext3_truncate(inode); ++ ext3_truncate_nocheck(inode); + /* + * Kill off the orphan record which ext3_truncate created. + * AKPM: I think this can be inside the above `if'. +@@ -2076,7 +2079,7 @@ static void ext3_free_branches(handle_t + * ext3_truncate() run will find them and release them. + */ + +-void ext3_truncate(struct inode * inode) ++void ext3_truncate_nocheck(struct inode * inode) + { + handle_t *handle; + struct ext3_inode_info *ei = EXT3_I(inode); +@@ -2097,8 +2100,6 @@ void ext3_truncate(struct inode * inode) + return; + if (ext3_inode_is_fast_symlink(inode)) + return; +- if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) +- return; + + /* + * We have to lock the EOF page here, because lock_page() nests +@@ -2417,23 +2418,88 @@ int ext3_get_inode_loc(struct inode *ino + !(EXT3_I(inode)->i_state & EXT3_STATE_XATTR)); + } + ++void ext3_truncate(struct inode * inode) ++{ ++ if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) ++ return; ++ ext3_truncate_nocheck(inode); ++} ++ + void ext3_set_inode_flags(struct inode *inode) + { + unsigned int flags = EXT3_I(inode)->i_flags; + +- inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC); ++ inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER | ++ S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC); ++ ++ if (flags & EXT3_IMMUTABLE_FL) ++ inode->i_flags |= S_IMMUTABLE; ++ if (flags & EXT3_IUNLINK_FL) ++ inode->i_flags |= S_IUNLINK; ++ if (flags & EXT3_BARRIER_FL) ++ inode->i_flags |= S_BARRIER; ++ + if (flags & EXT3_SYNC_FL) + inode->i_flags |= S_SYNC; + if (flags & EXT3_APPEND_FL) + inode->i_flags |= S_APPEND; +- if (flags & EXT3_IMMUTABLE_FL) +- inode->i_flags |= S_IMMUTABLE; + if (flags & EXT3_NOATIME_FL) + inode->i_flags |= S_NOATIME; + if (flags & EXT3_DIRSYNC_FL) + inode->i_flags |= S_DIRSYNC; + } + ++int ext3_sync_flags(struct inode *inode) ++{ ++ unsigned int oldflags, newflags; ++ int err = 0; ++ ++ oldflags = EXT3_I(inode)->i_flags; ++ newflags = oldflags & ~(EXT3_APPEND_FL | ++ EXT3_IMMUTABLE_FL | EXT3_IUNLINK_FL | ++ EXT3_BARRIER_FL | EXT3_NOATIME_FL | ++ EXT3_SYNC_FL | EXT3_DIRSYNC_FL); ++ ++ if (IS_APPEND(inode)) ++ newflags |= EXT3_APPEND_FL; ++ if (IS_IMMUTABLE(inode)) ++ newflags |= EXT3_IMMUTABLE_FL; ++ if (IS_IUNLINK(inode)) ++ newflags |= EXT3_IUNLINK_FL; ++ if (IS_BARRIER(inode)) ++ newflags |= EXT3_BARRIER_FL; ++ ++ /* we do not want to copy superblock flags */ ++ if (inode->i_flags & S_NOATIME) ++ newflags |= EXT3_NOATIME_FL; ++ if (inode->i_flags & S_SYNC) ++ newflags |= EXT3_SYNC_FL; ++ if (inode->i_flags & S_DIRSYNC) ++ newflags |= EXT3_DIRSYNC_FL; ++ ++ if (oldflags ^ newflags) { ++ handle_t *handle; ++ struct ext3_iloc iloc; ++ ++ handle = ext3_journal_start(inode, 1); ++ if (IS_ERR(handle)) ++ return PTR_ERR(handle); ++ if (IS_SYNC(inode)) ++ handle->h_sync = 1; ++ err = ext3_reserve_inode_write(handle, inode, &iloc); ++ if (err) ++ goto flags_err; ++ ++ EXT3_I(inode)->i_flags = newflags; ++ inode->i_ctime = CURRENT_TIME; ++ ++ err = ext3_mark_iloc_dirty(handle, inode, &iloc); ++ flags_err: ++ ext3_journal_stop(handle); ++ } ++ return err; ++} ++ + void ext3_read_inode(struct inode * inode) + { + struct ext3_iloc iloc; +@@ -2441,6 +2507,8 @@ void ext3_read_inode(struct inode * inod + struct ext3_inode_info *ei = EXT3_I(inode); + struct buffer_head *bh; + int block; ++ uid_t uid; ++ gid_t gid; + + #ifdef CONFIG_EXT3_FS_POSIX_ACL + ei->i_acl = EXT3_ACL_NOT_CACHED; +@@ -2453,12 +2521,17 @@ void ext3_read_inode(struct inode * inod + bh = iloc.bh; + raw_inode = ext3_raw_inode(&iloc); + inode->i_mode = le16_to_cpu(raw_inode->i_mode); +- inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); +- inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); ++ uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); ++ gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); + if(!(test_opt (inode->i_sb, NO_UID32))) { +- inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16; +- inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16; ++ uid |= le16_to_cpu(raw_inode->i_uid_high) << 16; ++ gid |= le16_to_cpu(raw_inode->i_gid_high) << 16; + } ++ inode->i_uid = INOXID_UID(XID_TAG(inode), uid, gid); ++ inode->i_gid = INOXID_GID(XID_TAG(inode), uid, gid); ++ inode->i_xid = INOXID_XID(XID_TAG(inode), uid, gid, ++ le16_to_cpu(raw_inode->i_raw_xid)); ++ + inode->i_nlink = le16_to_cpu(raw_inode->i_links_count); + inode->i_size = le32_to_cpu(raw_inode->i_size); + inode->i_atime.tv_sec = le32_to_cpu(raw_inode->i_atime); +@@ -2585,6 +2658,8 @@ static int ext3_do_update_inode(handle_t + struct ext3_inode *raw_inode = ext3_raw_inode(iloc); + struct ext3_inode_info *ei = EXT3_I(inode); + struct buffer_head *bh = iloc->bh; ++ uid_t uid = XIDINO_UID(XID_TAG(inode), inode->i_uid, inode->i_xid); ++ gid_t gid = XIDINO_GID(XID_TAG(inode), inode->i_gid, inode->i_xid); + int err = 0, rc, block; + + /* For fields not not tracking in the in-memory inode, +@@ -2594,29 +2669,32 @@ static int ext3_do_update_inode(handle_t + + raw_inode->i_mode = cpu_to_le16(inode->i_mode); + if(!(test_opt(inode->i_sb, NO_UID32))) { +- raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid)); +- raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid)); ++ raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid)); ++ raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid)); + /* + * Fix up interoperability with old kernels. Otherwise, old inodes get + * re-used with the upper 16 bits of the uid/gid intact + */ + if(!ei->i_dtime) { + raw_inode->i_uid_high = +- cpu_to_le16(high_16_bits(inode->i_uid)); ++ cpu_to_le16(high_16_bits(uid)); + raw_inode->i_gid_high = +- cpu_to_le16(high_16_bits(inode->i_gid)); ++ cpu_to_le16(high_16_bits(gid)); + } else { + raw_inode->i_uid_high = 0; + raw_inode->i_gid_high = 0; + } + } else { + raw_inode->i_uid_low = +- cpu_to_le16(fs_high2lowuid(inode->i_uid)); ++ cpu_to_le16(fs_high2lowuid(uid)); + raw_inode->i_gid_low = +- cpu_to_le16(fs_high2lowgid(inode->i_gid)); ++ cpu_to_le16(fs_high2lowgid(gid)); + raw_inode->i_uid_high = 0; + raw_inode->i_gid_high = 0; + } ++#ifdef CONFIG_INOXID_INTERN ++ raw_inode->i_raw_xid = cpu_to_le16(inode->i_xid); ++#endif + raw_inode->i_links_count = cpu_to_le16(inode->i_nlink); + raw_inode->i_size = cpu_to_le32(ei->i_disksize); + raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec); +@@ -2769,7 +2847,8 @@ int ext3_setattr(struct dentry *dentry, + return error; + + if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || +- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) { ++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) || ++ (ia_valid & ATTR_XID && attr->ia_xid != inode->i_xid)) { + handle_t *handle; + + /* (user+group)*(old+new) structure, inode write (sb, +@@ -2791,6 +2870,8 @@ int ext3_setattr(struct dentry *dentry, + inode->i_uid = attr->ia_uid; + if (attr->ia_valid & ATTR_GID) + inode->i_gid = attr->ia_gid; ++ if ((attr->ia_valid & ATTR_XID) && IS_TAGXID(inode)) ++ inode->i_xid = attr->ia_xid; + error = ext3_mark_inode_dirty(handle, inode); + ext3_journal_stop(handle); + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/ioctl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/ioctl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/ioctl.c +@@ -8,10 +8,12 @@ + */ + + #include <linux/fs.h> ++#include <linux/mount.h> + #include <linux/jbd.h> + #include <linux/ext3_fs.h> + #include <linux/ext3_jbd.h> + #include <linux/time.h> ++#include <linux/vserver/xid.h> + #include <asm/uaccess.h> + + +@@ -35,7 +37,8 @@ int ext3_ioctl (struct inode * inode, st + unsigned int oldflags; + unsigned int jflag; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) +@@ -58,7 +61,9 @@ int ext3_ioctl (struct inode * inode, st + * + * This test looks nicer. Thanks to Pauline Middelink + */ +- if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) { ++ if ((oldflags & EXT3_IMMUTABLE_FL) || ++ ((flags ^ oldflags) & (EXT3_APPEND_FL | ++ EXT3_IMMUTABLE_FL | EXT3_IUNLINK_FL))) { + if (!capable(CAP_LINUX_IMMUTABLE)) + return -EPERM; + } +@@ -111,7 +116,8 @@ flags_err: + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + return -EPERM; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + if (get_user(generation, (int __user *) arg)) + return -EFAULT; +@@ -165,7 +171,8 @@ flags_err: + if (!test_opt(inode->i_sb, RESERVATION) ||!S_ISREG(inode->i_mode)) + return -ENOTTY; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) +@@ -200,7 +207,8 @@ flags_err: + if (!capable(CAP_SYS_RESOURCE)) + return -EPERM; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if (get_user(n_blocks_count, (__u32 __user *)arg)) +@@ -221,7 +229,8 @@ flags_err: + if (!capable(CAP_SYS_RESOURCE)) + return -EPERM; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if (copy_from_user(&input, (struct ext3_new_group_input __user *)arg, +@@ -236,6 +245,38 @@ flags_err: + return err; + } + ++#if defined(CONFIG_VSERVER_LEGACY) && !defined(CONFIG_INOXID_NONE) ++ case EXT3_IOC_SETXID: { ++ handle_t *handle; ++ struct ext3_iloc iloc; ++ int xid; ++ int err; ++ ++ /* fixme: if stealth, return -ENOTTY */ ++ if (!capable(CAP_CONTEXT)) ++ return -EPERM; ++ if (IS_RDONLY(inode)) ++ return -EROFS; ++ if (!(inode->i_sb->s_flags & MS_TAGXID)) ++ return -ENOSYS; ++ if (get_user(xid, (int *) arg)) ++ return -EFAULT; ++ ++ handle = ext3_journal_start(inode, 1); ++ if (IS_ERR(handle)) ++ return PTR_ERR(handle); ++ err = ext3_reserve_inode_write(handle, inode, &iloc); ++ if (err) ++ return err; ++ ++ inode->i_xid = (xid & 0xFFFF); ++ inode->i_ctime = CURRENT_TIME; ++ ++ err = ext3_mark_iloc_dirty(handle, inode, &iloc); ++ ext3_journal_stop(handle); ++ return err; ++ } ++#endif + + default: + return -ENOTTY; +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/namei.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/namei.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/namei.c +@@ -36,6 +36,7 @@ + #include <linux/quotaops.h> + #include <linux/buffer_head.h> + #include <linux/smp_lock.h> ++#include <linux/vserver/xid.h> + + #include "namei.h" + #include "xattr.h" +@@ -1004,6 +1005,7 @@ static struct dentry *ext3_lookup(struct + + if (!inode) + return ERR_PTR(-EACCES); ++ vx_propagate_xid(nd, inode); + } + if (inode) + return d_splice_alias(inode, dentry); +@@ -2375,6 +2377,7 @@ struct inode_operations ext3_dir_inode_o + .removexattr = generic_removexattr, + #endif + .permission = ext3_permission, ++ .sync_flags = ext3_sync_flags, + }; + + struct inode_operations ext3_special_inode_operations = { +@@ -2386,4 +2389,5 @@ struct inode_operations ext3_special_ino + .removexattr = generic_removexattr, + #endif + .permission = ext3_permission, ++ .sync_flags = ext3_sync_flags, + }; +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/super.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/super.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/super.c +@@ -633,7 +633,7 @@ enum { + Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota, + Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota, + Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota, +- Opt_grpquota ++ Opt_grpquota, Opt_tagxid + }; + + static match_table_t tokens = { +@@ -681,6 +681,7 @@ static match_table_t tokens = { + {Opt_quota, "quota"}, + {Opt_usrquota, "usrquota"}, + {Opt_barrier, "barrier=%u"}, ++ {Opt_tagxid, "tagxid"}, + {Opt_err, NULL}, + {Opt_resize, "resize"}, + }; +@@ -772,6 +773,11 @@ static int parse_options (char * options + case Opt_nouid32: + set_opt (sbi->s_mount_opt, NO_UID32); + break; ++#ifndef CONFIG_INOXID_NONE ++ case Opt_tagxid: ++ set_opt (sbi->s_mount_opt, TAGXID); ++ break; ++#endif + case Opt_nocheck: + clear_opt (sbi->s_mount_opt, CHECK); + break; +@@ -1414,6 +1420,9 @@ static int ext3_fill_super (struct super + if (!parse_options ((char *) data, sb, &journal_inum, NULL, 0)) + goto failed_mount; + ++ if (EXT3_SB(sb)->s_mount_opt & EXT3_MOUNT_TAGXID) ++ sb->s_flags |= MS_TAGXID; ++ + sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | + ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); + +@@ -2204,6 +2213,12 @@ static int ext3_remount (struct super_bl + + if (sbi->s_mount_opt & EXT3_MOUNT_ABORT) + ext3_abort(sb, __FUNCTION__, "Abort forced by user"); ++ if ((sbi->s_mount_opt & EXT3_MOUNT_TAGXID) && ++ !(sb->s_flags & MS_TAGXID)) { ++ printk("EXT3-fs: %s: tagxid not permitted on remount.\n", ++ sb->s_id); ++ return -EINVAL; ++ } + + sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | + ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/symlink.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/symlink.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/symlink.c +@@ -40,6 +40,7 @@ struct inode_operations ext3_symlink_ino + .listxattr = ext3_listxattr, + .removexattr = generic_removexattr, + #endif ++ .sync_flags = ext3_sync_flags, + }; + + struct inode_operations ext3_fast_symlink_inode_operations = { +@@ -51,4 +52,5 @@ struct inode_operations ext3_fast_symlin + .listxattr = ext3_listxattr, + .removexattr = generic_removexattr, + #endif ++ .sync_flags = ext3_sync_flags, + }; +Index: vserver-sources-2.0.2_2.6.15.4/fs/ext3/xattr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ext3/xattr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ext3/xattr.c +@@ -58,6 +58,7 @@ + #include <linux/mbcache.h> + #include <linux/quotaops.h> + #include <linux/rwsem.h> ++#include <linux/vs_dlimit.h> + #include "xattr.h" + #include "acl.h" + +@@ -495,6 +496,7 @@ ext3_xattr_release_block(handle_t *handl + ext3_journal_dirty_metadata(handle, bh); + if (IS_SYNC(inode)) + handle->h_sync = 1; ++ DLIMIT_FREE_BLOCK(inode, 1); + DQUOT_FREE_BLOCK(inode, 1); + unlock_buffer(bh); + ea_bdebug(bh, "refcount now=%d; releasing", +@@ -763,11 +765,14 @@ inserted: + if (new_bh == bs->bh) + ea_bdebug(new_bh, "keeping"); + else { ++ error = -ENOSPC; ++ if (DLIMIT_ALLOC_BLOCK(inode, 1)) ++ goto cleanup; + /* The old block is released after updating + the inode. */ + error = -EDQUOT; + if (DQUOT_ALLOC_BLOCK(inode, 1)) +- goto cleanup; ++ goto cleanup_dlimit; + error = ext3_journal_get_write_access(handle, + new_bh); + if (error) +@@ -843,6 +848,8 @@ cleanup: + + cleanup_dquot: + DQUOT_FREE_BLOCK(inode, 1); ++cleanup_dlimit: ++ DLIMIT_FREE_BLOCK(inode, 1); + goto cleanup; + + bad_block: +Index: vserver-sources-2.0.2_2.6.15.4/fs/fcntl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/fcntl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/fcntl.c +@@ -17,6 +17,7 @@ + #include <linux/ptrace.h> + #include <linux/signal.h> + #include <linux/rcupdate.h> ++#include <linux/vs_limit.h> + + #include <asm/poll.h> + #include <asm/siginfo.h> +@@ -84,6 +85,8 @@ repeat: + error = -EMFILE; + if (newfd >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur) + goto out; ++ if (!vx_files_avail(1)) ++ goto out; + + error = expand_files(files, newfd); + if (error < 0) +@@ -125,6 +128,7 @@ static int dupfd(struct file *file, unsi + FD_SET(fd, fdt->open_fds); + FD_CLR(fd, fdt->close_on_exec); + spin_unlock(&files->file_lock); ++ vx_openfd_inc(fd); + fd_install(fd, file); + } else { + spin_unlock(&files->file_lock); +@@ -177,6 +181,9 @@ asmlinkage long sys_dup2(unsigned int ol + + if (tofree) + filp_close(tofree, files); ++ else ++ vx_openfd_inc(newfd); /* fd was unused */ ++ + err = newfd; + out: + return err; +@@ -477,7 +484,7 @@ void send_sigio(struct fown_struct *fown + + read_lock(&tasklist_lock); + if (pid > 0) { +- p = find_task_by_pid(pid); ++ p = find_task_by_real_pid(pid); + if (p) { + send_sigio_to_task(p, fown, fd, band); + } +@@ -512,7 +519,7 @@ int send_sigurg(struct fown_struct *fown + + read_lock(&tasklist_lock); + if (pid > 0) { +- p = find_task_by_pid(pid); ++ p = find_task_by_real_pid(pid); + if (p) { + send_sigurg_to_task(p, fown); + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/file_table.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/file_table.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/file_table.c +@@ -18,6 +18,8 @@ + #include <linux/mount.h> + #include <linux/cdev.h> + #include <linux/fsnotify.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_context.h> + + /* sysctl tunables... */ + struct files_stat_struct files_stat = { +@@ -96,6 +98,8 @@ struct file *get_empty_filp(void) + rwlock_init(&f->f_owner.lock); + /* f->f_version: 0 */ + INIT_LIST_HEAD(&f->f_u.fu_list); ++ f->f_xid = vx_current_xid(); ++ vx_files_inc(f); + return f; + + over: +@@ -150,6 +154,8 @@ void fastcall __fput(struct file *file) + fops_put(file->f_op); + if (file->f_mode & FMODE_WRITE) + put_write_access(inode); ++ vx_files_dec(file); ++ file->f_xid = 0; + file_kill(file); + file->f_dentry = NULL; + file->f_vfsmnt = NULL; +@@ -215,6 +221,8 @@ void put_filp(struct file *file) + { + if (rcuref_dec_and_test(&file->f_count)) { + security_file_free(file); ++ vx_files_dec(file); ++ file->f_xid = 0; + file_kill(file); + file_free(file); + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/hfsplus/ioctl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/hfsplus/ioctl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/hfsplus/ioctl.c +@@ -15,6 +15,7 @@ + #include <linux/fs.h> + #include <linux/sched.h> + #include <linux/xattr.h> ++#include <linux/mount.h> + #include <asm/uaccess.h> + #include "hfsplus_fs.h" + +@@ -34,7 +35,8 @@ int hfsplus_ioctl(struct inode *inode, s + flags |= EXT2_FLAG_NODUMP; /* EXT2_NODUMP_FL */ + return put_user(flags, (int __user *)arg); + case HFSPLUS_IOC_EXT2_SETFLAGS: { +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) +Index: vserver-sources-2.0.2_2.6.15.4/fs/inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/inode.c +@@ -115,6 +115,9 @@ static struct inode *alloc_inode(struct + struct address_space * const mapping = &inode->i_data; + + inode->i_sb = sb; ++ ++ /* essential because of inode slab reuse */ ++ inode->i_xid = 0; + inode->i_blkbits = sb->s_blocksize_bits; + inode->i_flags = 0; + atomic_set(&inode->i_count, 1); +@@ -235,6 +238,8 @@ void __iget(struct inode * inode) + inodes_stat.nr_unused--; + } + ++EXPORT_SYMBOL_GPL(__iget); ++ + /** + * clear_inode - clear an inode + * @inode: inode to clear +Index: vserver-sources-2.0.2_2.6.15.4/fs/ioctl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ioctl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ioctl.c +@@ -12,10 +12,19 @@ + #include <linux/fs.h> + #include <linux/security.h> + #include <linux/module.h> ++#include <linux/proc_fs.h> ++#include <linux/vserver/inode.h> ++#include <linux/vserver/xid.h> + + #include <asm/uaccess.h> + #include <asm/ioctls.h> + ++ ++#ifdef CONFIG_VSERVER_LEGACY ++extern int vx_proc_ioctl(struct inode *, struct file *, ++ unsigned int, unsigned long); ++#endif ++ + static long do_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) + { +@@ -146,6 +155,48 @@ int vfs_ioctl(struct file *filp, unsigne + else + error = -ENOTTY; + break; ++#ifdef CONFIG_VSERVER_LEGACY ++#ifndef CONFIG_INOXID_NONE ++ case FIOC_GETXID: { ++ struct inode *inode = filp->f_dentry->d_inode; ++ ++ /* fixme: if stealth, return -ENOTTY */ ++ error = -EPERM; ++ if (capable(CAP_CONTEXT)) ++ error = put_user(inode->i_xid, (int *) arg); ++ break; ++ } ++ case FIOC_SETXID: { ++ struct inode *inode = filp->f_dentry->d_inode; ++ int xid; ++ ++ /* fixme: if stealth, return -ENOTTY */ ++ error = -EPERM; ++ if (!capable(CAP_CONTEXT)) ++ break; ++ error = -EROFS; ++ if (IS_RDONLY(inode)) ++ break; ++ error = -ENOSYS; ++ if (!(inode->i_sb->s_flags & MS_TAGXID)) ++ break; ++ error = -EFAULT; ++ if (get_user(xid, (int *) arg)) ++ break; ++ error = 0; ++ inode->i_xid = (xid & 0xFFFF); ++ inode->i_ctime = CURRENT_TIME; ++ mark_inode_dirty(inode); ++ break; ++ } ++#endif ++ case FIOC_GETXFLG: ++ case FIOC_SETXFLG: ++ error = -ENOTTY; ++ if (filp->f_dentry->d_inode->i_sb->s_magic == PROC_SUPER_MAGIC) ++ error = vx_proc_ioctl(filp->f_dentry->d_inode, filp, cmd, arg); ++ break; ++#endif + default: + if (S_ISREG(filp->f_dentry->d_inode->i_mode)) + error = file_ioctl(filp, cmd, arg); +Index: vserver-sources-2.0.2_2.6.15.4/fs/ioprio.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/ioprio.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/ioprio.c +@@ -23,6 +23,7 @@ + #include <linux/ioprio.h> + #include <linux/blkdev.h> + #include <linux/syscalls.h> ++#include <linux/vs_cvirt.h> + + static int set_task_ioprio(struct task_struct *task, int ioprio) + { +@@ -94,7 +95,7 @@ asmlinkage long sys_ioprio_set(int which + if (!who) + user = current->user; + else +- user = find_user(who); ++ user = find_user(who, vx_current_xid()); + + if (!user) + break; +@@ -148,7 +149,7 @@ asmlinkage long sys_ioprio_get(int which + if (!who) + user = current->user; + else +- user = find_user(who); ++ user = find_user(who, vx_current_xid()); + + if (!user) + break; +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/acl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/acl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/acl.c +@@ -229,7 +229,8 @@ int jfs_setattr(struct dentry *dentry, s + return rc; + + if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) || +- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) { ++ (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) || ++ (iattr->ia_valid & ATTR_XID && iattr->ia_xid != inode->i_xid)) { + if (DQUOT_TRANSFER(inode, iattr)) + return -EDQUOT; + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/inode.c +@@ -22,6 +22,7 @@ + #include <linux/buffer_head.h> + #include <linux/pagemap.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_inode.h" + #include "jfs_filsys.h" +@@ -143,6 +144,7 @@ void jfs_delete_inode(struct inode *inod + DQUOT_INIT(inode); + DQUOT_FREE_INODE(inode); + DQUOT_DROP(inode); ++ DLIMIT_FREE_INODE(inode); + } + + clear_inode(inode); +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_dtree.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/jfs_dtree.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_dtree.c +@@ -102,6 +102,7 @@ + + #include <linux/fs.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_superblock.h" + #include "jfs_filsys.h" +@@ -383,10 +384,10 @@ static u32 add_index(tid_t tid, struct i + */ + if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage)) + goto clean_up; +- if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) { +- DQUOT_FREE_BLOCK(ip, sbi->nbperpage); +- goto clean_up; +- } ++ if (DLIMIT_ALLOC_BLOCK(ip, sbi->nbperpage)) ++ goto clean_up_quota; ++ if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) ++ goto clean_up_dlim; + + /* + * Save the table, we're going to overwrite it with the +@@ -479,6 +480,10 @@ static u32 add_index(tid_t tid, struct i + + return index; + ++ clean_up_dlim: ++ DLIMIT_FREE_BLOCK(ip, sbi->nbperpage); ++ clean_up_quota: ++ DQUOT_FREE_BLOCK(ip, sbi->nbperpage); + clean_up: + + jfs_ip->next_index--; +@@ -930,7 +935,8 @@ int dtInsert(tid_t tid, struct inode *ip + static int dtSplitUp(tid_t tid, + struct inode *ip, struct dtsplit * split, struct btstack * btstack) + { +- struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb); ++ struct super_block *sb = ip->i_sb; ++ struct jfs_sb_info *sbi = JFS_SBI(sb); + int rc = 0; + struct metapage *smp; + dtpage_t *sp; /* split page */ +@@ -952,6 +958,7 @@ static int dtSplitUp(tid_t tid, + struct tlock *tlck; + struct lv *lv; + int quota_allocation = 0; ++ int dlimit_allocation = 0; + + /* get split page */ + smp = split->mp; +@@ -1033,6 +1040,12 @@ static int dtSplitUp(tid_t tid, + } + quota_allocation += n; + ++ if (DLIMIT_ALLOC_BLOCK(ip, n)) { ++ rc = -ENOSPC; ++ goto extendOut; ++ } ++ dlimit_allocation += n; ++ + if ((rc = dbReAlloc(sbi->ipbmap, xaddr, (s64) xlen, + (s64) n, &nxaddr))) + goto extendOut; +@@ -1301,6 +1314,9 @@ static int dtSplitUp(tid_t tid, + freeKeyName: + kfree(key.name); + ++ /* Rollback dlimit allocation */ ++ if (rc && dlimit_allocation) ++ DLIMIT_FREE_BLOCK(ip, dlimit_allocation); + /* Rollback quota allocation */ + if (rc && quota_allocation) + DQUOT_FREE_BLOCK(ip, quota_allocation); +@@ -1368,6 +1384,12 @@ static int dtSplitPage(tid_t tid, struct + release_metapage(rmp); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ DQUOT_FREE_BLOCK(ip, lengthPXD(pxd)); ++ release_metapage(rmp); ++ return -ENOSPC; ++ } + + jfs_info("dtSplitPage: ip:0x%p smp:0x%p rmp:0x%p", ip, smp, rmp); + +@@ -1918,6 +1940,12 @@ static int dtSplitRoot(tid_t tid, + release_metapage(rmp); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ DQUOT_FREE_BLOCK(ip, lengthPXD(pxd)); ++ release_metapage(rmp); ++ return -ENOSPC; ++ } + + BT_MARK_DIRTY(rmp, ip); + /* +@@ -2284,6 +2312,8 @@ static int dtDeleteUp(tid_t tid, struct + + xlen = lengthPXD(&fp->header.self); + ++ /* Free dlimit allocation. */ ++ DLIMIT_FREE_BLOCK(ip, xlen); + /* Free quota allocation. */ + DQUOT_FREE_BLOCK(ip, xlen); + +@@ -2360,6 +2390,8 @@ static int dtDeleteUp(tid_t tid, struct + + xlen = lengthPXD(&p->header.self); + ++ /* Free dlimit allocation */ ++ DLIMIT_FREE_BLOCK(ip, xlen); + /* Free quota allocation */ + DQUOT_FREE_BLOCK(ip, xlen); + +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_extent.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/jfs_extent.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_extent.c +@@ -18,6 +18,7 @@ + + #include <linux/fs.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_inode.h" + #include "jfs_superblock.h" +@@ -146,6 +147,13 @@ extAlloc(struct inode *ip, s64 xlen, s64 + up(&JFS_IP(ip)->commit_sem); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, nxlen)) { ++ DQUOT_FREE_BLOCK(ip, nxlen); ++ dbFree(ip, nxaddr, (s64) nxlen); ++ up(&JFS_IP(ip)->commit_sem); ++ return -ENOSPC; ++ } + + /* determine the value of the extent flag */ + xflag = (abnr == TRUE) ? XAD_NOTRECORDED : 0; +@@ -164,6 +172,7 @@ extAlloc(struct inode *ip, s64 xlen, s64 + */ + if (rc) { + dbFree(ip, nxaddr, nxlen); ++ DLIMIT_FREE_BLOCK(ip, nxlen); + DQUOT_FREE_BLOCK(ip, nxlen); + up(&JFS_IP(ip)->commit_sem); + return (rc); +@@ -261,6 +270,13 @@ int extRealloc(struct inode *ip, s64 nxl + up(&JFS_IP(ip)->commit_sem); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, nxlen)) { ++ DQUOT_FREE_BLOCK(ip, nxlen); ++ dbFree(ip, nxaddr, (s64) nxlen); ++ up(&JFS_IP(ip)->commit_sem); ++ return -ENOSPC; ++ } + + delta = nxlen - xlen; + +@@ -297,6 +313,7 @@ int extRealloc(struct inode *ip, s64 nxl + /* extend the extent */ + if ((rc = xtExtend(0, ip, xoff + xlen, (int) nextend, 0))) { + dbFree(ip, xaddr + xlen, delta); ++ DLIMIT_FREE_BLOCK(ip, nxlen); + DQUOT_FREE_BLOCK(ip, nxlen); + goto exit; + } +@@ -308,6 +325,7 @@ int extRealloc(struct inode *ip, s64 nxl + */ + if ((rc = xtTailgate(0, ip, xoff, (int) ntail, nxaddr, 0))) { + dbFree(ip, nxaddr, nxlen); ++ DLIMIT_FREE_BLOCK(ip, nxlen); + DQUOT_FREE_BLOCK(ip, nxlen); + goto exit; + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_filsys.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/jfs_filsys.h ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_filsys.h +@@ -84,6 +84,7 @@ + #define JFS_DIR_INDEX 0x00200000 /* Persistant index for */ + /* directory entries */ + ++#define JFS_TAGXID 0x00800000 /* xid tagging */ + + /* + * buffer cache configuration +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_imap.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/jfs_imap.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_imap.c +@@ -45,6 +45,7 @@ + #include <linux/buffer_head.h> + #include <linux/pagemap.h> + #include <linux/quotaops.h> ++#include <linux/vserver/xid.h> + + #include "jfs_incore.h" + #include "jfs_inode.h" +@@ -3078,14 +3079,21 @@ static void duplicateIXtree(struct super + static int copy_from_dinode(struct dinode * dip, struct inode *ip) + { + struct jfs_inode_info *jfs_ip = JFS_IP(ip); ++ uid_t uid; ++ gid_t gid; + + jfs_ip->fileset = le32_to_cpu(dip->di_fileset); + jfs_ip->mode2 = le32_to_cpu(dip->di_mode); + + ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff; + ip->i_nlink = le32_to_cpu(dip->di_nlink); +- ip->i_uid = le32_to_cpu(dip->di_uid); +- ip->i_gid = le32_to_cpu(dip->di_gid); ++ ++ uid = le32_to_cpu(dip->di_uid); ++ gid = le32_to_cpu(dip->di_gid); ++ ip->i_uid = INOXID_UID(XID_TAG(ip), uid, gid); ++ ip->i_gid = INOXID_GID(XID_TAG(ip), uid, gid); ++ ip->i_xid = INOXID_XID(XID_TAG(ip), uid, gid, 0); ++ + ip->i_size = le64_to_cpu(dip->di_size); + ip->i_atime.tv_sec = le32_to_cpu(dip->di_atime.tv_sec); + ip->i_atime.tv_nsec = le32_to_cpu(dip->di_atime.tv_nsec); +@@ -3136,6 +3144,8 @@ static int copy_from_dinode(struct dinod + static void copy_to_dinode(struct dinode * dip, struct inode *ip) + { + struct jfs_inode_info *jfs_ip = JFS_IP(ip); ++ uid_t uid; ++ gid_t gid; + + dip->di_fileset = cpu_to_le32(jfs_ip->fileset); + dip->di_inostamp = cpu_to_le32(JFS_SBI(ip->i_sb)->inostamp); +@@ -3144,8 +3154,11 @@ static void copy_to_dinode(struct dinode + dip->di_size = cpu_to_le64(ip->i_size); + dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks)); + dip->di_nlink = cpu_to_le32(ip->i_nlink); +- dip->di_uid = cpu_to_le32(ip->i_uid); +- dip->di_gid = cpu_to_le32(ip->i_gid); ++ ++ uid = XIDINO_UID(XID_TAG(ip), ip->i_uid, ip->i_xid); ++ gid = XIDINO_GID(XID_TAG(ip), ip->i_gid, ip->i_xid); ++ dip->di_uid = cpu_to_le32(uid); ++ dip->di_gid = cpu_to_le32(gid); + /* + * mode2 is only needed for storing the higher order bits. + * Trust i_mode for the lower order ones +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/jfs_inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_inode.c +@@ -18,6 +18,8 @@ + + #include <linux/fs.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/xid.h> + #include "jfs_incore.h" + #include "jfs_inode.h" + #include "jfs_filsys.h" +@@ -62,10 +64,17 @@ struct inode *ialloc(struct inode *paren + } else + inode->i_gid = current->fsgid; + ++ inode->i_xid = vx_current_fsxid(sb); ++ if (DLIMIT_ALLOC_INODE(inode)) { ++ iput(inode); ++ return NULL; ++ } ++ + /* + * Allocate inode to quota. + */ + if (DQUOT_ALLOC_INODE(inode)) { ++ DLIMIT_FREE_INODE(inode); + DQUOT_DROP(inode); + inode->i_flags |= S_NOQUOTA; + inode->i_nlink = 0; +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_xtree.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/jfs_xtree.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/jfs_xtree.c +@@ -21,6 +21,7 @@ + + #include <linux/fs.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_filsys.h" + #include "jfs_metapage.h" +@@ -841,7 +842,12 @@ int xtInsert(tid_t tid, /* transaction + hint = 0; + if ((rc = DQUOT_ALLOC_BLOCK(ip, xlen))) + goto out; ++ if ((rc = DLIMIT_ALLOC_BLOCK(ip, xlen))) { ++ DQUOT_FREE_BLOCK(ip, xlen); ++ goto out; ++ } + if ((rc = dbAlloc(ip, hint, (s64) xlen, &xaddr))) { ++ DLIMIT_FREE_BLOCK(ip, xlen); + DQUOT_FREE_BLOCK(ip, xlen); + goto out; + } +@@ -871,6 +877,7 @@ int xtInsert(tid_t tid, /* transaction + /* undo data extent allocation */ + if (*xaddrp == 0) { + dbFree(ip, xaddr, (s64) xlen); ++ DLIMIT_FREE_BLOCK(ip, xlen); + DQUOT_FREE_BLOCK(ip, xlen); + } + return rc; +@@ -1231,6 +1238,7 @@ xtSplitPage(tid_t tid, struct inode *ip, + struct tlock *tlck; + struct xtlock *sxtlck = NULL, *rxtlck = NULL; + int quota_allocation = 0; ++ int dlimit_allocation = 0; + + smp = split->mp; + sp = XT_PAGE(ip, smp); +@@ -1243,13 +1251,20 @@ xtSplitPage(tid_t tid, struct inode *ip, + rbn = addressPXD(pxd); + + /* Allocate blocks to quota. */ +- if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { + rc = -EDQUOT; + goto clean_up; + } + + quota_allocation += lengthPXD(pxd); + ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ rc = -ENOSPC; ++ goto clean_up; ++ } ++ dlimit_allocation += lengthPXD(pxd); ++ + /* + * allocate the new right page for the split + */ +@@ -1451,6 +1466,9 @@ xtSplitPage(tid_t tid, struct inode *ip, + + clean_up: + ++ /* Rollback dlimit allocation. */ ++ if (dlimit_allocation) ++ DLIMIT_FREE_BLOCK(ip, dlimit_allocation); + /* Rollback quota allocation. */ + if (quota_allocation) + DQUOT_FREE_BLOCK(ip, quota_allocation); +@@ -1515,6 +1533,12 @@ xtSplitRoot(tid_t tid, + release_metapage(rmp); + return -EDQUOT; + } ++ /* Allocate blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) { ++ DQUOT_FREE_BLOCK(ip, lengthPXD(pxd)); ++ release_metapage(rmp); ++ return -ENOSPC; ++ } + + jfs_info("xtSplitRoot: ip:0x%p rmp:0x%p", ip, rmp); + +@@ -3941,6 +3965,8 @@ s64 xtTruncate(tid_t tid, struct inode * + else + ip->i_size = newsize; + ++ /* update dlimit allocation to reflect freed blocks */ ++ DLIMIT_FREE_BLOCK(ip, nfreed); + /* update quota allocation to reflect freed blocks */ + DQUOT_FREE_BLOCK(ip, nfreed); + +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/namei.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/namei.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/namei.c +@@ -20,6 +20,7 @@ + #include <linux/fs.h> + #include <linux/ctype.h> + #include <linux/quotaops.h> ++#include <linux/vserver/xid.h> + #include "jfs_incore.h" + #include "jfs_superblock.h" + #include "jfs_inode.h" +@@ -1465,6 +1466,7 @@ static struct dentry *jfs_lookup(struct + return ERR_PTR(-EACCES); + } + ++ vx_propagate_xid(nd, ip); + dentry = d_splice_alias(ip, dentry); + + if (dentry && (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2)) +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/super.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/super.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/super.c +@@ -195,7 +195,7 @@ static void jfs_put_super(struct super_b + enum { + Opt_integrity, Opt_nointegrity, Opt_iocharset, Opt_resize, + Opt_resize_nosize, Opt_errors, Opt_ignore, Opt_err, Opt_quota, +- Opt_usrquota, Opt_grpquota ++ Opt_usrquota, Opt_grpquota, Opt_tagxid + }; + + static match_table_t tokens = { +@@ -205,6 +205,7 @@ static match_table_t tokens = { + {Opt_resize, "resize=%u"}, + {Opt_resize_nosize, "resize"}, + {Opt_errors, "errors=%s"}, ++ {Opt_tagxid, "tagxid"}, + {Opt_ignore, "noquota"}, + {Opt_ignore, "quota"}, + {Opt_usrquota, "usrquota"}, +@@ -313,7 +314,11 @@ static int parse_options(char *options, + "JFS: quota operations not supported\n"); + break; + #endif +- ++#ifndef CONFIG_INOXID_NONE ++ case Opt_tagxid: ++ *flag |= JFS_TAGXID; ++ break; ++#endif + default: + printk("jfs: Unrecognized mount option \"%s\" " + " or missing value\n", p); +@@ -344,6 +349,13 @@ static int jfs_remount(struct super_bloc + if (!parse_options(data, sb, &newLVSize, &flag)) { + return -EINVAL; + } ++ ++ if ((flag & JFS_TAGXID) && !(sb->s_flags & MS_TAGXID)) { ++ printk(KERN_ERR "JFS: %s: tagxid not permitted on remount.\n", ++ sb->s_id); ++ return -EINVAL; ++ } ++ + if (newLVSize) { + if (sb->s_flags & MS_RDONLY) { + printk(KERN_ERR +@@ -415,6 +427,9 @@ static int jfs_fill_super(struct super_b + #ifdef CONFIG_JFS_POSIX_ACL + sb->s_flags |= MS_POSIXACL; + #endif ++ /* map mount option tagxid */ ++ if (sbi->flag & JFS_TAGXID) ++ sb->s_flags |= MS_TAGXID; + + if (newLVSize) { + printk(KERN_ERR "resize option for remount only\n"); +Index: vserver-sources-2.0.2_2.6.15.4/fs/jfs/xattr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/jfs/xattr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/jfs/xattr.c +@@ -22,6 +22,7 @@ + #include <linux/posix_acl_xattr.h> + #include <linux/quotaops.h> + #include <linux/security.h> ++#include <linux/vs_dlimit.h> + #include "jfs_incore.h" + #include "jfs_superblock.h" + #include "jfs_dmap.h" +@@ -277,9 +278,16 @@ static int ea_write(struct inode *ip, st + if (DQUOT_ALLOC_BLOCK(ip, nblocks)) { + return -EDQUOT; + } ++ /* Allocate new blocks to dlimit. */ ++ if (DLIMIT_ALLOC_BLOCK(ip, nblocks)) { ++ DQUOT_FREE_BLOCK(ip, nblocks); ++ return -ENOSPC; ++ } + + rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno); + if (rc) { ++ /*Rollback dlimit allocation. */ ++ DLIMIT_FREE_BLOCK(ip, nblocks); + /*Rollback quota allocation. */ + DQUOT_FREE_BLOCK(ip, nblocks); + return rc; +@@ -346,6 +354,8 @@ static int ea_write(struct inode *ip, st + + failed: + /* Rollback quota allocation. */ ++ DLIMIT_FREE_BLOCK(ip, nblocks); ++ /* Rollback quota allocation. */ + DQUOT_FREE_BLOCK(ip, nblocks); + + dbFree(ip, blkno, nblocks); +@@ -482,6 +492,7 @@ static int ea_get(struct inode *inode, s + s64 blkno; + int rc; + int quota_allocation = 0; ++ int dlimit_allocation = 0; + + /* When fsck.jfs clears a bad ea, it doesn't clear the size */ + if (ji->ea.flag == 0) +@@ -557,6 +568,12 @@ static int ea_get(struct inode *inode, s + + quota_allocation = blocks_needed; + ++ /* Allocate new blocks to dlimit. */ ++ rc = -ENOSPC; ++ if (DLIMIT_ALLOC_BLOCK(inode, blocks_needed)) ++ goto clean_up; ++ dlimit_allocation = blocks_needed; ++ + rc = dbAlloc(inode, INOHINT(inode), (s64) blocks_needed, + &blkno); + if (rc) +@@ -613,6 +630,9 @@ static int ea_get(struct inode *inode, s + return ea_size; + + clean_up: ++ /* Rollback dlimit allocation */ ++ if (dlimit_allocation) ++ DLIMIT_FREE_BLOCK(inode, dlimit_allocation); + /* Rollback quota allocation */ + if (quota_allocation) + DQUOT_FREE_BLOCK(inode, quota_allocation); +@@ -689,8 +709,10 @@ static int ea_put(tid_t tid, struct inod + } + + /* If old blocks exist, they must be removed from quota allocation. */ +- if (old_blocks) ++ if (old_blocks) { ++ DLIMIT_FREE_BLOCK(inode, old_blocks); + DQUOT_FREE_BLOCK(inode, old_blocks); ++ } + + inode->i_ctime = CURRENT_TIME; + +Index: vserver-sources-2.0.2_2.6.15.4/fs/libfs.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/libfs.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/libfs.c +@@ -122,7 +122,8 @@ static inline unsigned char dt_type(stru + * both impossible due to the lock on directory. + */ + +-int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) ++static inline int do_dcache_readdir_filter(struct file * filp, ++ void * dirent, filldir_t filldir, int (*filter)(struct dentry *dentry)) + { + struct dentry *dentry = filp->f_dentry; + struct dentry *cursor = filp->private_data; +@@ -156,6 +157,8 @@ int dcache_readdir(struct file * filp, v + next = list_entry(p, struct dentry, d_child); + if (d_unhashed(next) || !next->d_inode) + continue; ++ if (filter && !filter(next)) ++ continue; + + spin_unlock(&dcache_lock); + if (filldir(dirent, next->d_name.name, next->d_name.len, filp->f_pos, next->d_inode->i_ino, dt_type(next->d_inode)) < 0) +@@ -172,6 +175,18 @@ int dcache_readdir(struct file * filp, v + return 0; + } + ++int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir) ++{ ++ return do_dcache_readdir_filter(filp, dirent, filldir, NULL); ++} ++ ++int dcache_readdir_filter(struct file * filp, void * dirent, filldir_t filldir, ++ int (*filter)(struct dentry *)) ++{ ++ return do_dcache_readdir_filter(filp, dirent, filldir, filter); ++} ++ ++ + ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t *ppos) + { + return -EISDIR; +@@ -620,6 +635,7 @@ EXPORT_SYMBOL(dcache_dir_close); + EXPORT_SYMBOL(dcache_dir_lseek); + EXPORT_SYMBOL(dcache_dir_open); + EXPORT_SYMBOL(dcache_readdir); ++EXPORT_SYMBOL(dcache_readdir_filter); + EXPORT_SYMBOL(generic_read_dir); + EXPORT_SYMBOL(get_sb_pseudo); + EXPORT_SYMBOL(simple_commit_write); +Index: vserver-sources-2.0.2_2.6.15.4/fs/locks.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/locks.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/locks.c +@@ -125,6 +125,7 @@ + #include <linux/syscalls.h> + #include <linux/time.h> + #include <linux/rcupdate.h> ++#include <linux/vs_limit.h> + + #include <asm/semaphore.h> + #include <asm/uaccess.h> +@@ -150,12 +151,16 @@ static kmem_cache_t *filelock_cache; + /* Allocate an empty lock structure. */ + static struct file_lock *locks_alloc_lock(void) + { ++ if (!vx_locks_avail(1)) ++ return NULL; + return kmem_cache_alloc(filelock_cache, SLAB_KERNEL); + } + + /* Free a lock which is not in use. */ + static inline void locks_free_lock(struct file_lock *fl) + { ++ vx_locks_dec(fl); ++ + if (fl == NULL) { + BUG(); + return; +@@ -199,6 +204,7 @@ void locks_init_lock(struct file_lock *f + fl->fl_start = fl->fl_end = 0; + fl->fl_ops = NULL; + fl->fl_lmops = NULL; ++ fl->fl_xid = -1; + } + + EXPORT_SYMBOL(locks_init_lock); +@@ -236,6 +242,8 @@ void locks_copy_lock(struct file_lock *n + fl->fl_ops->fl_copy_lock(new, fl); + if (fl->fl_lmops && fl->fl_lmops->fl_copy_lock) + fl->fl_lmops->fl_copy_lock(new, fl); ++ ++ new->fl_xid = fl->fl_xid; + } + + EXPORT_SYMBOL(locks_copy_lock); +@@ -272,6 +280,11 @@ static int flock_make_lock(struct file * + fl->fl_flags = FL_FLOCK; + fl->fl_type = type; + fl->fl_end = OFFSET_MAX; ++ ++ vxd_assert(filp->f_xid == vx_current_xid(), ++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid()); ++ fl->fl_xid = filp->f_xid; ++ vx_locks_inc(fl); + + *lock = fl; + return 0; +@@ -457,6 +470,11 @@ static int lease_alloc(struct file *filp + if (fl == NULL) + return -ENOMEM; + ++ fl->fl_xid = vx_current_xid(); ++ if (filp) ++ vxd_assert(filp->f_xid == fl->fl_xid, ++ "f_xid(%d) == fl_xid(%d)", filp->f_xid, fl->fl_xid); ++ vx_locks_inc(fl); + error = lease_init(filp, type, fl); + if (error) + return error; +@@ -772,7 +790,7 @@ out: + + EXPORT_SYMBOL(posix_lock_file); + +-static int __posix_lock_file(struct inode *inode, struct file_lock *request) ++static int __posix_lock_file(struct inode *inode, struct file_lock *request, xid_t xid) + { + struct file_lock *fl; + struct file_lock *new_fl, *new_fl2; +@@ -781,12 +799,18 @@ static int __posix_lock_file(struct inod + struct file_lock **before; + int error, added = 0; + ++ vxd_assert(xid == vx_current_xid(), ++ "xid(%d) == current(%d)", xid, vx_current_xid()); + /* + * We may need two file_lock structures for this operation, + * so we get them in advance to avoid races. + */ + new_fl = locks_alloc_lock(); ++ new_fl->fl_xid = xid; ++ vx_locks_inc(new_fl); + new_fl2 = locks_alloc_lock(); ++ new_fl2->fl_xid = xid; ++ vx_locks_inc(new_fl2); + + lock_kernel(); + if (request->fl_type != F_UNLCK) { +@@ -964,7 +988,7 @@ static int __posix_lock_file(struct inod + */ + int posix_lock_file(struct file *filp, struct file_lock *fl) + { +- return __posix_lock_file(filp->f_dentry->d_inode, fl); ++ return __posix_lock_file(filp->f_dentry->d_inode, fl, filp->f_xid); + } + + /** +@@ -981,7 +1005,8 @@ int posix_lock_file_wait(struct file *fi + int error; + might_sleep (); + for (;;) { +- error = __posix_lock_file(filp->f_dentry->d_inode, fl); ++ error = __posix_lock_file(filp->f_dentry->d_inode, ++ fl, filp->f_xid); + if ((error != -EAGAIN) || !(fl->fl_flags & FL_SLEEP)) + break; + error = wait_event_interruptible(fl->fl_wait, !fl->fl_next); +@@ -1053,7 +1078,7 @@ int locks_mandatory_area(int read_write, + fl.fl_end = offset + count - 1; + + for (;;) { +- error = __posix_lock_file(inode, &fl); ++ error = __posix_lock_file(inode, &fl, filp->f_xid); + if (error != -EAGAIN) + break; + if (!(fl.fl_flags & FL_SLEEP)) +@@ -1614,6 +1639,11 @@ int fcntl_setlk(unsigned int fd, struct + if (file_lock == NULL) + return -ENOLCK; + ++ vxd_assert(filp->f_xid == vx_current_xid(), ++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid()); ++ file_lock->fl_xid = filp->f_xid; ++ vx_locks_inc(file_lock); ++ + /* + * This might block, so we do it before checking the inode. + */ +@@ -1666,7 +1696,8 @@ again: + error = filp->f_op->lock(filp, cmd, file_lock); + else { + for (;;) { +- error = __posix_lock_file(inode, file_lock); ++ error = __posix_lock_file(inode, file_lock, ++ filp->f_xid); + if ((error != -EAGAIN) || (cmd == F_SETLK)) + break; + error = wait_event_interruptible(file_lock->fl_wait, +@@ -1757,6 +1788,11 @@ int fcntl_setlk64(unsigned int fd, struc + if (file_lock == NULL) + return -ENOLCK; + ++ vxd_assert(filp->f_xid == vx_current_xid(), ++ "f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid()); ++ file_lock->fl_xid = filp->f_xid; ++ vx_locks_inc(file_lock); ++ + /* + * This might block, so we do it before checking the inode. + */ +@@ -1809,7 +1845,8 @@ again: + error = filp->f_op->lock(filp, cmd, file_lock); + else { + for (;;) { +- error = __posix_lock_file(inode, file_lock); ++ error = __posix_lock_file(inode, file_lock, ++ filp->f_xid); + if ((error != -EAGAIN) || (cmd == F_SETLK64)) + break; + error = wait_event_interruptible(file_lock->fl_wait, +@@ -2086,6 +2123,10 @@ int get_locks_status(char *buffer, char + list_for_each(tmp, &file_lock_list) { + struct list_head *btmp; + struct file_lock *fl = list_entry(tmp, struct file_lock, fl_link); ++ ++ if (!vx_check(fl->fl_xid, VX_IDENT|VX_WATCH)) ++ continue; ++ + lock_get_status(q, fl, ++i, ""); + move_lock_status(&q, &pos, offset); + +Index: vserver-sources-2.0.2_2.6.15.4/fs/namei.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/namei.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/namei.c +@@ -29,6 +29,9 @@ + #include <linux/mount.h> + #include <linux/audit.h> + #include <linux/file.h> ++#include <linux/proc_fs.h> ++#include <linux/vserver/inode.h> ++#include <linux/vserver/debug.h> + #include <asm/namei.h> + #include <asm/uaccess.h> + +@@ -222,6 +225,24 @@ int generic_permission(struct inode *ino + return -EACCES; + } + ++static inline int xid_permission(struct inode *inode, int mask, struct nameidata *nd) ++{ ++ if (IS_BARRIER(inode) && !vx_check(0, VX_ADMIN)) { ++ vxwprintk(1, "xid=%d did hit the barrier.", ++ vx_current_xid()); ++ return -EACCES; ++ } ++ if (inode->i_xid == 0) ++ return 0; ++ if (vx_check(inode->i_xid, VX_ADMIN|VX_WATCH|VX_IDENT)) ++ return 0; ++ ++ vxwprintk(1, "xid=%d denied access to %p[#%d,%lu] »%s«.", ++ vx_current_xid(), inode, inode->i_xid, inode->i_ino, ++ vxd_path(nd->dentry, nd->mnt)); ++ return -EACCES; ++} ++ + int permission(struct inode *inode, int mask, struct nameidata *nd) + { + int retval, submask; +@@ -232,7 +253,7 @@ int permission(struct inode *inode, int + /* + * Nobody gets write access to a read-only fs. + */ +- if (IS_RDONLY(inode) && ++ if ((IS_RDONLY(inode) || (nd && MNT_IS_RDONLY(nd->mnt))) && + (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) + return -EROFS; + +@@ -246,6 +267,8 @@ int permission(struct inode *inode, int + + /* Ordinary permission routines do not understand MAY_APPEND. */ + submask = mask & ~MAY_APPEND; ++ if ((retval = xid_permission(inode, mask, nd))) ++ return retval; + if (inode->i_op && inode->i_op->permission) + retval = inode->i_op->permission(inode, submask, nd); + else +@@ -699,7 +722,8 @@ static inline void follow_dotdot(struct + if (nd->dentry == current->fs->root && + nd->mnt == current->fs->rootmnt) { + read_unlock(¤t->fs->lock); +- break; ++ /* for sane '/' avoid follow_mount() */ ++ return; + } + read_unlock(¤t->fs->lock); + spin_lock(&dcache_lock); +@@ -736,16 +760,34 @@ static int do_lookup(struct nameidata *n + { + struct vfsmount *mnt = nd->mnt; + struct dentry *dentry = __d_lookup(nd->dentry, name); ++ struct inode *inode; + + if (!dentry) + goto need_lookup; + if (dentry->d_op && dentry->d_op->d_revalidate) + goto need_revalidate; ++ inode = dentry->d_inode; ++ if (!inode) ++ goto done; ++ if (!vx_check(inode->i_xid, VX_WATCH|VX_ADMIN|VX_HOSTID|VX_IDENT)) ++ goto hidden; ++ if (inode->i_sb->s_magic == PROC_SUPER_MAGIC) { ++ struct proc_dir_entry *de = PDE(inode); ++ ++ if (de && !vx_hide_check(0, de->vx_flags)) ++ goto hidden; ++ } + done: + path->mnt = mnt; + path->dentry = dentry; + __follow_mount(path); + return 0; ++hidden: ++ vxwprintk(1, "xid=%d did lookup hidden %p[#%d,%lu] »%s«.", ++ vx_current_xid(), inode, inode->i_xid, inode->i_ino, ++ vxd_path(dentry, mnt)); ++ dput(dentry); ++ return -ENOENT; + + need_lookup: + dentry = real_lookup(nd->dentry, name, nd); +@@ -1293,7 +1335,8 @@ static inline int check_sticky(struct in + * 10. We don't allow removal of NFS sillyrenamed files; it's handled by + * nfs_async_unlink(). + */ +-static inline int may_delete(struct inode *dir,struct dentry *victim,int isdir) ++static inline int may_delete(struct inode *dir, struct dentry *victim, ++ int isdir, struct nameidata *nd) + { + int error; + +@@ -1302,13 +1345,13 @@ static inline int may_delete(struct inod + + BUG_ON(victim->d_parent->d_inode != dir); + +- error = permission(dir,MAY_WRITE | MAY_EXEC, NULL); ++ error = permission(dir,MAY_WRITE | MAY_EXEC, nd); + if (error) + return error; + if (IS_APPEND(dir)) + return -EPERM; + if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)|| +- IS_IMMUTABLE(victim->d_inode)) ++ IS_IXORUNLINK(victim->d_inode)) + return -EPERM; + if (isdir) { + if (!S_ISDIR(victim->d_inode->i_mode)) +@@ -1455,7 +1498,8 @@ int may_open(struct nameidata *nd, int a + return -EACCES; + + flag &= ~O_TRUNC; +- } else if (IS_RDONLY(inode) && (flag & FMODE_WRITE)) ++ } else if ((IS_RDONLY(inode) || MNT_IS_RDONLY(nd->mnt)) ++ && (flag & FMODE_WRITE)) + return -EROFS; + /* + * An append-only file must be opened in append mode for writing. +@@ -1719,9 +1763,10 @@ fail: + } + EXPORT_SYMBOL_GPL(lookup_create); + +-int vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) ++int vfs_mknod(struct inode *dir, struct dentry *dentry, ++ int mode, dev_t dev, struct nameidata *nd) + { +- int error = may_create(dir, dentry, NULL); ++ int error = may_create(dir, dentry, nd); + + if (error) + return error; +@@ -1770,11 +1815,12 @@ asmlinkage long sys_mknod(const char __u + error = vfs_create(nd.dentry->d_inode,dentry,mode,&nd); + break; + case S_IFCHR: case S_IFBLK: +- error = vfs_mknod(nd.dentry->d_inode,dentry,mode, +- new_decode_dev(dev)); ++ error = vfs_mknod(nd.dentry->d_inode, dentry, mode, ++ new_decode_dev(dev), &nd); + break; + case S_IFIFO: case S_IFSOCK: +- error = vfs_mknod(nd.dentry->d_inode,dentry,mode,0); ++ error = vfs_mknod(nd.dentry->d_inode, dentry, mode, ++ 0, &nd); + break; + case S_IFDIR: + error = -EPERM; +@@ -1792,9 +1838,10 @@ out: + return error; + } + +-int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) ++int vfs_mkdir(struct inode *dir, struct dentry *dentry, ++ int mode, struct nameidata *nd) + { +- int error = may_create(dir, dentry, NULL); ++ int error = may_create(dir, dentry, nd); + + if (error) + return error; +@@ -1833,7 +1880,8 @@ asmlinkage long sys_mkdir(const char __u + if (!IS_ERR(dentry)) { + if (!IS_POSIXACL(nd.dentry->d_inode)) + mode &= ~current->fs->umask; +- error = vfs_mkdir(nd.dentry->d_inode, dentry, mode); ++ error = vfs_mkdir(nd.dentry->d_inode, dentry, ++ mode, &nd); + dput(dentry); + } + up(&nd.dentry->d_inode->i_sem); +@@ -1873,9 +1921,10 @@ void dentry_unhash(struct dentry *dentry + spin_unlock(&dcache_lock); + } + +-int vfs_rmdir(struct inode *dir, struct dentry *dentry) ++int vfs_rmdir(struct inode *dir, struct dentry *dentry, ++ struct nameidata *nd) + { +- int error = may_delete(dir, dentry, 1); ++ int error = may_delete(dir, dentry, 1, nd); + + if (error) + return error; +@@ -1936,7 +1985,7 @@ asmlinkage long sys_rmdir(const char __u + dentry = lookup_hash(&nd); + error = PTR_ERR(dentry); + if (!IS_ERR(dentry)) { +- error = vfs_rmdir(nd.dentry->d_inode, dentry); ++ error = vfs_rmdir(nd.dentry->d_inode, dentry, &nd); + dput(dentry); + } + up(&nd.dentry->d_inode->i_sem); +@@ -1947,9 +1996,10 @@ exit: + return error; + } + +-int vfs_unlink(struct inode *dir, struct dentry *dentry) ++int vfs_unlink(struct inode *dir, struct dentry *dentry, ++ struct nameidata *nd) + { +- int error = may_delete(dir, dentry, 0); ++ int error = may_delete(dir, dentry, 0, nd); + + if (error) + return error; +@@ -2011,7 +2061,7 @@ asmlinkage long sys_unlink(const char __ + inode = dentry->d_inode; + if (inode) + atomic_inc(&inode->i_count); +- error = vfs_unlink(nd.dentry->d_inode, dentry); ++ error = vfs_unlink(nd.dentry->d_inode, dentry, &nd); + exit2: + dput(dentry); + } +@@ -2030,9 +2080,10 @@ slashes: + goto exit2; + } + +-int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname, int mode) ++int vfs_symlink(struct inode *dir, struct dentry *dentry, ++ const char *oldname, int mode, struct nameidata *nd) + { +- int error = may_create(dir, dentry, NULL); ++ int error = may_create(dir, dentry, nd); + + if (error) + return error; +@@ -2072,7 +2123,8 @@ asmlinkage long sys_symlink(const char _ + dentry = lookup_create(&nd, 0); + error = PTR_ERR(dentry); + if (!IS_ERR(dentry)) { +- error = vfs_symlink(nd.dentry->d_inode, dentry, from, S_IALLUGO); ++ error = vfs_symlink(nd.dentry->d_inode, dentry, ++ from, S_IALLUGO, &nd); + dput(dentry); + } + up(&nd.dentry->d_inode->i_sem); +@@ -2084,7 +2136,8 @@ out: + return error; + } + +-int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry) ++int vfs_link(struct dentry *old_dentry, struct inode *dir, ++ struct dentry *new_dentry, struct nameidata *nd) + { + struct inode *inode = old_dentry->d_inode; + int error; +@@ -2092,7 +2145,7 @@ int vfs_link(struct dentry *old_dentry, + if (!inode) + return -ENOENT; + +- error = may_create(dir, new_dentry, NULL); ++ error = may_create(dir, new_dentry, nd); + if (error) + return error; + +@@ -2102,7 +2155,7 @@ int vfs_link(struct dentry *old_dentry, + /* + * A link to an append-only or immutable file cannot be created. + */ +- if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) ++ if (IS_APPEND(inode) || IS_IXORUNLINK(inode)) + return -EPERM; + if (!dir->i_op || !dir->i_op->link) + return -EPERM; +@@ -2154,7 +2207,8 @@ asmlinkage long sys_link(const char __us + new_dentry = lookup_create(&nd, 0); + error = PTR_ERR(new_dentry); + if (!IS_ERR(new_dentry)) { +- error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry); ++ error = vfs_link(old_nd.dentry, nd.dentry->d_inode, ++ new_dentry, &nd); + dput(new_dentry); + } + up(&nd.dentry->d_inode->i_sem); +@@ -2281,14 +2335,14 @@ int vfs_rename(struct inode *old_dir, st + if (old_dentry->d_inode == new_dentry->d_inode) + return 0; + +- error = may_delete(old_dir, old_dentry, is_dir); ++ error = may_delete(old_dir, old_dentry, is_dir, NULL); + if (error) + return error; + + if (!new_dentry->d_inode) + error = may_create(new_dir, new_dentry, NULL); + else +- error = may_delete(new_dir, new_dentry, is_dir); ++ error = may_delete(new_dir, new_dentry, is_dir, NULL); + if (error) + return error; + +@@ -2365,6 +2419,9 @@ static inline int do_rename(const char * + error = -EINVAL; + if (old_dentry == trap) + goto exit4; ++ error = -EROFS; ++ if (MNT_IS_RDONLY(newnd.mnt)) ++ goto exit4; + new_dentry = lookup_hash(&newnd); + error = PTR_ERR(new_dentry); + if (IS_ERR(new_dentry)) +Index: vserver-sources-2.0.2_2.6.15.4/fs/namespace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/namespace.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/namespace.c +@@ -22,6 +22,8 @@ + #include <linux/namei.h> + #include <linux/security.h> + #include <linux/mount.h> ++#include <linux/vserver/namespace.h> ++#include <linux/vserver/xid.h> + #include <asm/uaccess.h> + #include <asm/unistd.h> + #include "pnode.h" +@@ -236,6 +238,7 @@ static struct vfsmount *clone_mnt(struct + mnt->mnt_root = dget(root); + mnt->mnt_mountpoint = mnt->mnt_root; + mnt->mnt_parent = mnt; ++ mnt->mnt_xid = old->mnt_xid; + + if (flag & CL_SLAVE) { + list_add(&mnt->mnt_slave, &old->mnt_slave_list); +@@ -344,43 +347,85 @@ static inline void mangle(struct seq_fil + seq_escape(m, s, " \t\n\\"); + } + ++static int mnt_is_reachable(struct vfsmount *mnt) ++{ ++ struct vfsmount *root_mnt; ++ struct dentry *root, *point; ++ int ret; ++ ++ if (mnt == mnt->mnt_namespace->root) ++ return 1; ++ ++ spin_lock(&dcache_lock); ++ root_mnt = current->fs->rootmnt; ++ root = current->fs->root; ++ point = root; ++ ++ while ((mnt != mnt->mnt_parent) && (mnt != root_mnt)) { ++ point = mnt->mnt_mountpoint; ++ mnt = mnt->mnt_parent; ++ } ++ ++ ret = (mnt == root_mnt) && is_subdir(point, root); ++ ++ spin_unlock(&dcache_lock); ++ ++ return ret; ++} ++ + static int show_vfsmnt(struct seq_file *m, void *v) + { + struct vfsmount *mnt = v; + int err = 0; + static struct proc_fs_info { +- int flag; +- char *str; ++ int s_flag; ++ int mnt_flag; ++ char *set_str; ++ char *unset_str; + } fs_info[] = { +- { MS_SYNCHRONOUS, ",sync" }, +- { MS_DIRSYNC, ",dirsync" }, +- { MS_MANDLOCK, ",mand" }, +- { MS_NOATIME, ",noatime" }, +- { MS_NODIRATIME, ",nodiratime" }, +- { 0, NULL } +- }; +- static struct proc_fs_info mnt_info[] = { +- { MNT_NOSUID, ",nosuid" }, +- { MNT_NODEV, ",nodev" }, +- { MNT_NOEXEC, ",noexec" }, +- { 0, NULL } ++ { MS_RDONLY, MNT_RDONLY, "ro", "rw" }, ++ { MS_SYNCHRONOUS, 0, ",sync", NULL }, ++ { MS_DIRSYNC, 0, ",dirsync", NULL }, ++ { MS_MANDLOCK, 0, ",mand", NULL }, ++ { MS_TAGXID, 0, ",tagxid", NULL }, ++ { MS_NOATIME, MNT_NOATIME, ",noatime", NULL }, ++ { MS_NODIRATIME, MNT_NODIRATIME, ",nodiratime", NULL }, ++ { 0, MNT_NOSUID, ",nosuid", NULL }, ++ { 0, MNT_NODEV, ",nodev", NULL }, ++ { 0, MNT_NOEXEC, ",noexec", NULL }, ++ { 0, 0, NULL, NULL } + }; +- struct proc_fs_info *fs_infop; ++ struct proc_fs_info *p; ++ unsigned long s_flags = mnt->mnt_sb->s_flags; ++ int mnt_flags = mnt->mnt_flags; + +- mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none"); +- seq_putc(m, ' '); +- seq_path(m, mnt, mnt->mnt_root, " \t\n\\"); +- seq_putc(m, ' '); ++ if (vx_flags(VXF_HIDE_MOUNT, 0)) ++ return 0; ++ if (!mnt_is_reachable(mnt)) ++ return 0; ++ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH) && ++ mnt == current->fs->rootmnt) { ++ seq_puts(m, "/dev/root / "); ++ } else { ++ mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none"); ++ seq_putc(m, ' '); ++ seq_path(m, mnt, mnt->mnt_root, " \t\n\\"); ++ seq_putc(m, ' '); ++ } + mangle(m, mnt->mnt_sb->s_type->name); +- seq_puts(m, mnt->mnt_sb->s_flags & MS_RDONLY ? " ro" : " rw"); +- for (fs_infop = fs_info; fs_infop->flag; fs_infop++) { +- if (mnt->mnt_sb->s_flags & fs_infop->flag) +- seq_puts(m, fs_infop->str); +- } +- for (fs_infop = mnt_info; fs_infop->flag; fs_infop++) { +- if (mnt->mnt_flags & fs_infop->flag) +- seq_puts(m, fs_infop->str); ++ seq_putc(m, ' '); ++ for (p = fs_info; (p->s_flag | p->mnt_flag) ; p++) { ++ if ((s_flags & p->s_flag) || (mnt_flags & p->mnt_flag)) { ++ if (p->set_str) ++ seq_puts(m, p->set_str); ++ } else { ++ if (p->unset_str) ++ seq_puts(m, p->unset_str); ++ } + } ++ if (mnt->mnt_flags & MNT_XID) ++ seq_printf(m, ",xid=%d", mnt->mnt_xid); + if (mnt->mnt_sb->s_op->show_options) + err = mnt->mnt_sb->s_op->show_options(m, mnt); + seq_puts(m, " 0 0\n"); +@@ -470,15 +515,11 @@ void release_mounts(struct list_head *he + } + } + +-void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill) ++static inline void __umount_list(struct vfsmount *mnt, ++ int propagate, struct list_head *kill) + { + struct vfsmount *p; + +- for (p = mnt; p; p = next_mnt(p, mnt)) { +- list_del(&p->mnt_hash); +- list_add(&p->mnt_hash, kill); +- } +- + if (propagate) + propagate_umount(kill); + +@@ -494,6 +535,33 @@ void umount_tree(struct vfsmount *mnt, i + } + } + ++void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill) ++{ ++ struct vfsmount *p; ++ ++ for (p = mnt; p; p = next_mnt(p, mnt)) { ++ list_del(&p->mnt_hash); ++ list_add(&p->mnt_hash, kill); ++ // p->mnt_namespace = NULL; ++ } ++ __umount_list(mnt, propagate, kill); ++} ++ ++void umount_unused(struct vfsmount *mnt, struct fs_struct *fs) ++{ ++ struct vfsmount *p; ++ LIST_HEAD(kill); ++ ++ for (p = mnt; p; p = next_mnt(p, mnt)) { ++ if (p == fs->rootmnt || p == fs->pwdmnt) ++ continue; ++ list_del(&p->mnt_list); ++ list_add(&p->mnt_list, &kill); ++ p->mnt_namespace = NULL; ++ } ++ __umount_list(mnt, 0, &kill); ++} ++ + static int do_umount(struct vfsmount *mnt, int flags) + { + struct super_block *sb = mnt->mnt_sb; +@@ -603,7 +671,7 @@ asmlinkage long sys_umount(char __user * + goto dput_and_out; + + retval = -EPERM; +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) + goto dput_and_out; + + retval = do_umount(nd.mnt, flags); +@@ -629,6 +697,8 @@ static int mount_is_safe(struct nameidat + { + if (capable(CAP_SYS_ADMIN)) + return 0; ++ if (vx_ccaps(VXC_SECURE_MOUNT)) ++ return 0; + return -EPERM; + #ifdef notyet + if (S_ISLNK(nd->dentry->d_inode->i_mode)) +@@ -856,11 +926,13 @@ static int do_change_type(struct nameida + /* + * do loopback mount. + */ +-static int do_loopback(struct nameidata *nd, char *old_name, int recurse) ++static int do_loopback(struct nameidata *nd, char *old_name, xid_t xid, ++ unsigned long flags, int mnt_flags) + { + struct nameidata old_nd; + struct vfsmount *mnt = NULL; + int err = mount_is_safe(nd); ++ int recurse = flags & MS_REC; + if (err) + return err; + if (!old_name || !*old_name) +@@ -886,6 +958,12 @@ static int do_loopback(struct nameidata + if (!mnt) + goto out; + ++ mnt->mnt_flags = mnt_flags; ++ if (flags & MS_XID) { ++ mnt->mnt_xid = xid; ++ mnt->mnt_flags |= MNT_XID; ++ } ++ + err = graft_tree(mnt, nd); + if (err) { + LIST_HEAD(umount_list); +@@ -907,12 +985,12 @@ out: + * on it - tough luck. + */ + static int do_remount(struct nameidata *nd, int flags, int mnt_flags, +- void *data) ++ void *data, xid_t xid) + { + int err; + struct super_block *sb = nd->mnt->mnt_sb; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_REMOUNT)) + return -EPERM; + + if (!check_mnt(nd->mnt)) +@@ -946,7 +1024,7 @@ static int do_move_mount(struct nameidat + struct nameidata old_nd, parent_nd; + struct vfsmount *p; + int err = 0; +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) + return -EPERM; + if (!old_name || !*old_name) + return -EINVAL; +@@ -1026,7 +1104,7 @@ static int do_new_mount(struct nameidata + return -EINVAL; + + /* we need capabilities... */ +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) + return -EPERM; + + mnt = do_kern_mount(type, flags, name, data); +@@ -1264,6 +1342,7 @@ long do_mount(char *dev_name, char *dir_ + struct nameidata nd; + int retval = 0; + int mnt_flags = 0; ++ xid_t xid = 0; + + /* Discard magic */ + if ((flags & MS_MGC_MSK) == MS_MGC_VAL) +@@ -1279,15 +1358,32 @@ long do_mount(char *dev_name, char *dir_ + if (data_page) + ((char *)data_page)[PAGE_SIZE - 1] = 0; + ++ retval = vx_parse_xid(data_page, &xid, 1); ++ if (retval) { ++ mnt_flags |= MNT_XID; ++ /* bind and re-mounts get xid flag */ ++ if (flags & (MS_BIND|MS_REMOUNT)) ++ flags |= MS_XID; ++ } ++ + /* Separate the per-mountpoint flags */ ++ if (flags & MS_RDONLY) ++ mnt_flags |= MNT_RDONLY; + if (flags & MS_NOSUID) + mnt_flags |= MNT_NOSUID; + if (flags & MS_NODEV) + mnt_flags |= MNT_NODEV; + if (flags & MS_NOEXEC) + mnt_flags |= MNT_NOEXEC; ++ if (flags & MS_NOATIME) ++ mnt_flags |= MNT_NOATIME; ++ if (flags & MS_NODIRATIME) ++ mnt_flags |= MNT_NODIRATIME; + flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE); + ++ if (vx_ccaps(VXC_SECURE_MOUNT)) ++ mnt_flags |= MNT_NODEV; ++ + /* ... and get the mountpoint */ + retval = path_lookup(dir_name, LOOKUP_FOLLOW, &nd); + if (retval) +@@ -1299,9 +1395,9 @@ long do_mount(char *dev_name, char *dir_ + + if (flags & MS_REMOUNT) + retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags, +- data_page); ++ data_page, xid); + else if (flags & MS_BIND) +- retval = do_loopback(&nd, dev_name, flags & MS_REC); ++ retval = do_loopback(&nd, dev_name, xid, flags, mnt_flags); + else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE)) + retval = do_change_type(&nd, flags); + else if (flags & MS_MOVE) +@@ -1330,7 +1426,7 @@ int copy_namespace(int flags, struct tas + if (!(flags & CLONE_NEWNS)) + return 0; + +- if (!capable(CAP_SYS_ADMIN)) { ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) { + put_namespace(namespace); + return -EPERM; + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfs/dir.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfs/dir.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfs/dir.c +@@ -28,9 +28,11 @@ + #include <linux/sunrpc/clnt.h> + #include <linux/nfs_fs.h> + #include <linux/nfs_mount.h> ++#include <linux/mount.h> + #include <linux/pagemap.h> + #include <linux/smp_lock.h> + #include <linux/namei.h> ++#include <linux/vserver/xid.h> + + #include "nfs4_fs.h" + #include "delegation.h" +@@ -869,6 +871,7 @@ static struct dentry *nfs_lookup(struct + inode = nfs_fhget(dentry->d_sb, &fhandle, &fattr); + if (!inode) + goto out_unlock; ++ vx_propagate_xid(nd, inode); + no_entry: + res = d_add_unique(dentry, inode); + if (res != NULL) +@@ -902,7 +905,8 @@ static int is_atomic_open(struct inode * + if (nd->flags & LOOKUP_DIRECTORY) + return 0; + /* Are we trying to write to a read only partition? */ +- if (IS_RDONLY(dir) && (nd->intent.open.flags & (O_CREAT|O_TRUNC|FMODE_WRITE))) ++ if ((IS_RDONLY(dir) || MNT_IS_RDONLY(nd->mnt)) && ++ (nd->intent.open.flags & (O_CREAT|O_TRUNC|FMODE_WRITE))) + return 0; + return 1; + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfs/inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfs/inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfs/inode.c +@@ -35,6 +35,7 @@ + #include <linux/mount.h> + #include <linux/nfs_idmap.h> + #include <linux/vfs.h> ++#include <linux/vserver/xid.h> + + #include <asm/system.h> + #include <asm/uaccess.h> +@@ -340,12 +341,16 @@ nfs_sb_init(struct super_block *sb, rpc_ + } + server->backing_dev_info.ra_pages = server->rpages * NFS_MAX_READAHEAD; + ++ if (server->flags & NFS_MOUNT_TAGXID) ++ sb->s_flags |= MS_TAGXID; ++ + sb->s_maxbytes = fsinfo.maxfilesize; + if (sb->s_maxbytes > MAX_LFS_FILESIZE) + sb->s_maxbytes = MAX_LFS_FILESIZE; + + server->client->cl_intr = (server->flags & NFS_MOUNT_INTR) ? 1 : 0; + server->client->cl_softrtry = (server->flags & NFS_MOUNT_SOFT) ? 1 : 0; ++ server->client->cl_tagxid = (server->flags & NFS_MOUNT_TAGXID) ? 1 : 0; + + /* We're airborne Set socket buffersize */ + rpc_setbufsize(server->client, server->wsize + 100, server->rsize + 100); +@@ -417,6 +422,7 @@ nfs_create_client(struct nfs_server *ser + + clnt->cl_intr = 1; + clnt->cl_softrtry = 1; ++ clnt->cl_tagxid = 1; + clnt->cl_chatty = 1; + + return clnt; +@@ -599,6 +605,7 @@ static int nfs_show_options(struct seq_f + { NFS_MOUNT_NOAC, ",noac", "" }, + { NFS_MOUNT_NONLM, ",nolock", ",lock" }, + { NFS_MOUNT_NOACL, ",noacl", "" }, ++ { NFS_MOUNT_TAGXID, ",tagxid", "" }, + { 0, NULL, NULL } + }; + struct proc_nfs_info *nfs_infop; +@@ -814,8 +821,10 @@ nfs_fhget(struct super_block *sb, struct + nfsi->change_attr = fattr->change_attr; + inode->i_size = nfs_size_to_loff_t(fattr->size); + inode->i_nlink = fattr->nlink; +- inode->i_uid = fattr->uid; +- inode->i_gid = fattr->gid; ++ inode->i_uid = INOXID_UID(XID_TAG(inode), fattr->uid, fattr->gid); ++ inode->i_gid = INOXID_GID(XID_TAG(inode), fattr->uid, fattr->gid); ++ inode->i_xid = INOXID_XID(XID_TAG(inode), fattr->uid, fattr->gid, 0); ++ /* maybe fattr->xid someday */ + if (fattr->valid & (NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4)) { + /* + * report the blocks in 512byte units +@@ -907,6 +916,8 @@ void nfs_setattr_update_inode(struct ino + inode->i_uid = attr->ia_uid; + if ((attr->ia_valid & ATTR_GID) != 0) + inode->i_gid = attr->ia_gid; ++ if ((attr->ia_valid & ATTR_XID) && IS_TAGXID(inode)) ++ inode->i_xid = attr->ia_xid; + spin_lock(&inode->i_lock); + NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + spin_unlock(&inode->i_lock); +@@ -1266,6 +1277,9 @@ static int nfs_check_inode_attributes(st + struct nfs_inode *nfsi = NFS_I(inode); + loff_t cur_size, new_isize; + int data_unstable; ++ uid_t uid; ++ gid_t gid; ++ xid_t xid; + + + /* Are we in the process of updating data on the server? */ +@@ -1315,10 +1329,15 @@ static int nfs_check_inode_attributes(st + nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE; + } + ++ uid = INOXID_UID(XID_TAG(inode), fattr->uid, fattr->gid); ++ gid = INOXID_GID(XID_TAG(inode), fattr->uid, fattr->gid); ++ xid = INOXID_XID(XID_TAG(inode), fattr->uid, fattr->gid, 0); ++ + /* Have any file permissions changed? */ + if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) +- || inode->i_uid != fattr->uid +- || inode->i_gid != fattr->gid) ++ || inode->i_uid != uid ++ || inode->i_gid != gid ++ || inode->i_xid != xid) + nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL; + + /* Has the link count changed? */ +@@ -1402,6 +1421,9 @@ static int nfs_update_inode(struct inode + loff_t cur_isize, new_isize; + unsigned int invalid = 0; + int data_stable; ++ uid_t uid; ++ gid_t gid; ++ xid_t xid; + + dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n", + __FUNCTION__, inode->i_sb->s_id, inode->i_ino, +@@ -1483,15 +1505,21 @@ static int nfs_update_inode(struct inode + } + memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime)); + ++ uid = INOXID_UID(XID_TAG(inode), fattr->uid, fattr->gid); ++ gid = INOXID_GID(XID_TAG(inode), fattr->uid, fattr->gid); ++ xid = INOXID_XID(XID_TAG(inode), fattr->uid, fattr->gid, 0); ++ + if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) || +- inode->i_uid != fattr->uid || +- inode->i_gid != fattr->gid) ++ inode->i_uid != uid || ++ inode->i_gid != gid || ++ inode->i_xid != xid) + invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL; + + inode->i_mode = fattr->mode; + inode->i_nlink = fattr->nlink; +- inode->i_uid = fattr->uid; +- inode->i_gid = fattr->gid; ++ inode->i_uid = uid; ++ inode->i_gid = gid; ++ inode->i_xid = xid; + + if (fattr->valid & (NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4)) { + /* +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfs/nfs3xdr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfs/nfs3xdr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfs/nfs3xdr.c +@@ -22,6 +22,7 @@ + #include <linux/nfs3.h> + #include <linux/nfs_fs.h> + #include <linux/nfsacl.h> ++#include <linux/vserver/xid.h> + + #define NFSDBG_FACILITY NFSDBG_XDR + +@@ -178,7 +179,7 @@ xdr_decode_fattr(u32 *p, struct nfs_fatt + } + + static inline u32 * +-xdr_encode_sattr(u32 *p, struct iattr *attr) ++xdr_encode_sattr(u32 *p, struct iattr *attr, int tagxid) + { + if (attr->ia_valid & ATTR_MODE) { + *p++ = xdr_one; +@@ -186,15 +187,17 @@ xdr_encode_sattr(u32 *p, struct iattr *a + } else { + *p++ = xdr_zero; + } +- if (attr->ia_valid & ATTR_UID) { ++ if (attr->ia_valid & ATTR_UID || ++ (tagxid && (attr->ia_valid & ATTR_XID))) { + *p++ = xdr_one; +- *p++ = htonl(attr->ia_uid); ++ *p++ = htonl(XIDINO_UID(tagxid, attr->ia_uid, attr->ia_xid)); + } else { + *p++ = xdr_zero; + } +- if (attr->ia_valid & ATTR_GID) { ++ if (attr->ia_valid & ATTR_GID || ++ (tagxid && (attr->ia_valid & ATTR_XID))) { + *p++ = xdr_one; +- *p++ = htonl(attr->ia_gid); ++ *p++ = htonl(XIDINO_GID(tagxid, attr->ia_gid, attr->ia_xid)); + } else { + *p++ = xdr_zero; + } +@@ -279,7 +282,8 @@ static int + nfs3_xdr_sattrargs(struct rpc_rqst *req, u32 *p, struct nfs3_sattrargs *args) + { + p = xdr_encode_fhandle(p, args->fh); +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tagxid); + *p++ = htonl(args->guard); + if (args->guard) + p = xdr_encode_time3(p, &args->guardtime); +@@ -370,7 +374,8 @@ nfs3_xdr_createargs(struct rpc_rqst *req + *p++ = args->verifier[0]; + *p++ = args->verifier[1]; + } else +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tagxid); + + req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); + return 0; +@@ -384,7 +389,8 @@ nfs3_xdr_mkdirargs(struct rpc_rqst *req, + { + p = xdr_encode_fhandle(p, args->fh); + p = xdr_encode_array(p, args->name, args->len); +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tagxid); + req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); + return 0; + } +@@ -397,7 +403,8 @@ nfs3_xdr_symlinkargs(struct rpc_rqst *re + { + p = xdr_encode_fhandle(p, args->fromfh); + p = xdr_encode_array(p, args->fromname, args->fromlen); +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tagxid); + p = xdr_encode_array(p, args->topath, args->tolen); + req->rq_slen = xdr_adjust_iovec(req->rq_svec, p); + return 0; +@@ -412,7 +419,8 @@ nfs3_xdr_mknodargs(struct rpc_rqst *req, + p = xdr_encode_fhandle(p, args->fh); + p = xdr_encode_array(p, args->name, args->len); + *p++ = htonl(args->type); +- p = xdr_encode_sattr(p, args->sattr); ++ p = xdr_encode_sattr(p, args->sattr, ++ req->rq_task->tk_client->cl_tagxid); + if (args->type == NF3CHR || args->type == NF3BLK) { + *p++ = htonl(MAJOR(args->rdev)); + *p++ = htonl(MINOR(args->rdev)); +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfs/nfsroot.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfs/nfsroot.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfs/nfsroot.c +@@ -87,6 +87,7 @@ + #include <linux/root_dev.h> + #include <net/ipconfig.h> + #include <linux/parser.h> ++#include <linux/vs_cvirt.h> + + /* Define this to allow debugging output */ + #undef NFSROOT_DEBUG +@@ -124,7 +125,7 @@ enum { + Opt_soft, Opt_hard, Opt_intr, + Opt_nointr, Opt_posix, Opt_noposix, Opt_cto, Opt_nocto, Opt_ac, + Opt_noac, Opt_lock, Opt_nolock, Opt_v2, Opt_v3, Opt_udp, Opt_tcp, +- Opt_acl, Opt_noacl, ++ Opt_acl, Opt_noacl, Opt_tagxid, + /* Error token */ + Opt_err + }; +@@ -161,6 +162,7 @@ static match_table_t __initdata tokens = + {Opt_tcp, "tcp"}, + {Opt_acl, "acl"}, + {Opt_noacl, "noacl"}, ++ {Opt_tagxid, "tagxid"}, + {Opt_err, NULL} + + }; +@@ -275,6 +277,11 @@ static int __init root_nfs_parse(char *n + case Opt_noacl: + nfs_data.flags |= NFS_MOUNT_NOACL; + break; ++#ifndef CONFIG_INOXID_NONE ++ case Opt_tagxid: ++ nfs_data.flags |= NFS_MOUNT_TAGXID; ++ break; ++#endif + default : + return 0; + } +@@ -310,7 +317,7 @@ static int __init root_nfs_name(char *na + /* Override them by options set on kernel command-line */ + root_nfs_parse(name, buf); + +- cp = system_utsname.nodename; ++ cp = vx_new_uts(nodename); + if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) { + printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n"); + return -1; +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfsd/auth.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfsd/auth.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfsd/auth.c +@@ -9,6 +9,7 @@ + #include <linux/sunrpc/svc.h> + #include <linux/sunrpc/svcauth.h> + #include <linux/nfsd/nfsd.h> ++#include <linux/vserver/xid.h> + + #define CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE)) + +@@ -42,18 +43,20 @@ int nfsd_setuser(struct svc_rqst *rqstp, + } + + if (cred->cr_uid != (uid_t) -1) +- current->fsuid = cred->cr_uid; ++ current->fsuid = INOXID_UID(XID_TAG_NFSD, cred->cr_uid, cred->cr_gid); + else + current->fsuid = exp->ex_anon_uid; + if (cred->cr_gid != (gid_t) -1) +- current->fsgid = cred->cr_gid; ++ current->fsgid = INOXID_GID(XID_TAG_NFSD, cred->cr_uid, cred->cr_gid); + else + current->fsgid = exp->ex_anon_gid; + ++ current->xid = INOXID_XID(XID_TAG_NFSD, cred->cr_uid, cred->cr_gid, 0); ++ + if (!cred->cr_group_info) + return -ENOMEM; + ret = set_current_groups(cred->cr_group_info); +- if ((cred->cr_uid)) { ++ if (INOXID_UID(XID_TAG_NFSD, cred->cr_uid, cred->cr_gid)) { + cap_t(current->cap_effective) &= ~CAP_NFSD_MASK; + } else { + cap_t(current->cap_effective) |= (CAP_NFSD_MASK & +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfsd/nfs3xdr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfsd/nfs3xdr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfsd/nfs3xdr.c +@@ -21,6 +21,7 @@ + #include <linux/sunrpc/svc.h> + #include <linux/nfsd/nfsd.h> + #include <linux/nfsd/xdr3.h> ++#include <linux/vserver/xid.h> + + #define NFSDDBG_FACILITY NFSDDBG_XDR + +@@ -111,6 +112,8 @@ static inline u32 * + decode_sattr3(u32 *p, struct iattr *iap) + { + u32 tmp; ++ uid_t uid = 0; ++ gid_t gid = 0; + + iap->ia_valid = 0; + +@@ -120,12 +123,15 @@ decode_sattr3(u32 *p, struct iattr *iap) + } + if (*p++) { + iap->ia_valid |= ATTR_UID; +- iap->ia_uid = ntohl(*p++); ++ uid = ntohl(*p++); + } + if (*p++) { + iap->ia_valid |= ATTR_GID; +- iap->ia_gid = ntohl(*p++); ++ gid = ntohl(*p++); + } ++ iap->ia_uid = INOXID_UID(XID_TAG_NFSD, uid, gid); ++ iap->ia_gid = INOXID_GID(XID_TAG_NFSD, uid, gid); ++ iap->ia_xid = INOXID_XID(XID_TAG_NFSD, uid, gid, 0); + if (*p++) { + u64 newsize; + +@@ -166,8 +172,10 @@ encode_fattr3(struct svc_rqst *rqstp, u3 + *p++ = htonl(nfs3_ftypes[(stat.mode & S_IFMT) >> 12]); + *p++ = htonl((u32) stat.mode); + *p++ = htonl((u32) stat.nlink); +- *p++ = htonl((u32) nfsd_ruid(rqstp, stat.uid)); +- *p++ = htonl((u32) nfsd_rgid(rqstp, stat.gid)); ++ *p++ = htonl((u32) nfsd_ruid(rqstp, ++ XIDINO_UID(XID_TAG(dentry->d_inode), stat.uid, stat.xid))); ++ *p++ = htonl((u32) nfsd_rgid(rqstp, ++ XIDINO_GID(XID_TAG(dentry->d_inode), stat.gid, stat.xid))); + if (S_ISLNK(stat.mode) && stat.size > NFS3_MAXPATHLEN) { + p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN); + } else { +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfsd/nfs4recover.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfsd/nfs4recover.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfsd/nfs4recover.c +@@ -155,7 +155,7 @@ nfsd4_create_clid_dir(struct nfs4_client + dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n"); + goto out_put; + } +- status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU); ++ status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU, NULL); + out_put: + dput(dentry); + out_unlock: +@@ -260,7 +260,7 @@ nfsd4_remove_clid_file(struct dentry *di + return -EINVAL; + } + down(&dir->d_inode->i_sem); +- status = vfs_unlink(dir->d_inode, dentry); ++ status = vfs_unlink(dir->d_inode, dentry, NULL); + up(&dir->d_inode->i_sem); + return status; + } +@@ -275,7 +275,7 @@ nfsd4_clear_clid_dir(struct dentry *dir, + * a kernel from the future.... */ + nfsd4_list_rec_dir(dentry, nfsd4_remove_clid_file); + down(&dir->d_inode->i_sem); +- status = vfs_rmdir(dir->d_inode, dentry); ++ status = vfs_rmdir(dir->d_inode, dentry, NULL); + up(&dir->d_inode->i_sem); + return status; + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfsd/nfs4xdr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfsd/nfs4xdr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfsd/nfs4xdr.c +@@ -57,6 +57,7 @@ + #include <linux/nfsd_idmap.h> + #include <linux/nfs4.h> + #include <linux/nfs4_acl.h> ++#include <linux/vserver/xid.h> + + #define NFSDDBG_FACILITY NFSDDBG_XDR + +@@ -1561,14 +1562,18 @@ out_acl: + WRITE32(stat.nlink); + } + if (bmval1 & FATTR4_WORD1_OWNER) { +- status = nfsd4_encode_user(rqstp, stat.uid, &p, &buflen); ++ status = nfsd4_encode_user(rqstp, ++ XIDINO_UID(XID_TAG(dentry->d_inode), ++ stat.uid, stat.xid), &p, &buflen); + if (status == nfserr_resource) + goto out_resource; + if (status) + goto out; + } + if (bmval1 & FATTR4_WORD1_OWNER_GROUP) { +- status = nfsd4_encode_group(rqstp, stat.gid, &p, &buflen); ++ status = nfsd4_encode_group(rqstp, ++ XIDINO_GID(XID_TAG(dentry->d_inode), ++ stat.gid, stat.xid), &p, &buflen); + if (status == nfserr_resource) + goto out_resource; + if (status) +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfsd/nfsxdr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfsd/nfsxdr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfsd/nfsxdr.c +@@ -15,6 +15,7 @@ + #include <linux/nfsd/nfsd.h> + #include <linux/nfsd/xdr.h> + #include <linux/mm.h> ++#include <linux/vserver/xid.h> + + #define NFSDDBG_FACILITY NFSDDBG_XDR + +@@ -102,6 +103,8 @@ static inline u32 * + decode_sattr(u32 *p, struct iattr *iap) + { + u32 tmp, tmp1; ++ uid_t uid = 0; ++ gid_t gid = 0; + + iap->ia_valid = 0; + +@@ -115,12 +118,15 @@ decode_sattr(u32 *p, struct iattr *iap) + } + if ((tmp = ntohl(*p++)) != (u32)-1) { + iap->ia_valid |= ATTR_UID; +- iap->ia_uid = tmp; ++ uid = tmp; + } + if ((tmp = ntohl(*p++)) != (u32)-1) { + iap->ia_valid |= ATTR_GID; +- iap->ia_gid = tmp; ++ gid = tmp; + } ++ iap->ia_uid = INOXID_UID(XID_TAG_NFSD, uid, gid); ++ iap->ia_gid = INOXID_GID(XID_TAG_NFSD, uid, gid); ++ iap->ia_xid = INOXID_XID(XID_TAG_NFSD, uid, gid, 0); + if ((tmp = ntohl(*p++)) != (u32)-1) { + iap->ia_valid |= ATTR_SIZE; + iap->ia_size = tmp; +@@ -166,8 +172,10 @@ encode_fattr(struct svc_rqst *rqstp, u32 + *p++ = htonl(nfs_ftypes[type >> 12]); + *p++ = htonl((u32) stat.mode); + *p++ = htonl((u32) stat.nlink); +- *p++ = htonl((u32) nfsd_ruid(rqstp, stat.uid)); +- *p++ = htonl((u32) nfsd_rgid(rqstp, stat.gid)); ++ *p++ = htonl((u32) nfsd_ruid(rqstp, ++ XIDINO_UID(XID_TAG(dentry->d_inode), stat.uid, stat.xid))); ++ *p++ = htonl((u32) nfsd_rgid(rqstp, ++ XIDINO_GID(XID_TAG(dentry->d_inode), stat.gid, stat.xid))); + + if (S_ISLNK(type) && stat.size > NFS_MAXPATHLEN) { + *p++ = htonl(NFS_MAXPATHLEN); +Index: vserver-sources-2.0.2_2.6.15.4/fs/nfsd/vfs.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/nfsd/vfs.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/nfsd/vfs.c +@@ -1161,13 +1161,13 @@ nfsd_create(struct svc_rqst *rqstp, stru + err = vfs_create(dirp, dchild, iap->ia_mode, NULL); + break; + case S_IFDIR: +- err = vfs_mkdir(dirp, dchild, iap->ia_mode); ++ err = vfs_mkdir(dirp, dchild, iap->ia_mode, NULL); + break; + case S_IFCHR: + case S_IFBLK: + case S_IFIFO: + case S_IFSOCK: +- err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev); ++ err = vfs_mknod(dirp, dchild, iap->ia_mode, rdev, NULL); + break; + default: + printk("nfsd: bad file type %o in nfsd_create\n", type); +@@ -1443,11 +1443,13 @@ nfsd_symlink(struct svc_rqst *rqstp, str + else { + strncpy(path_alloced, path, plen); + path_alloced[plen] = 0; +- err = vfs_symlink(dentry->d_inode, dnew, path_alloced, mode); ++ err = vfs_symlink(dentry->d_inode, dnew, ++ path_alloced, mode, NULL); + kfree(path_alloced); + } + } else +- err = vfs_symlink(dentry->d_inode, dnew, path, mode); ++ err = vfs_symlink(dentry->d_inode, dnew, ++ path, mode, NULL); + + if (!err) { + if (EX_ISSYNC(fhp->fh_export)) +@@ -1505,7 +1507,7 @@ nfsd_link(struct svc_rqst *rqstp, struct + dold = tfhp->fh_dentry; + dest = dold->d_inode; + +- err = vfs_link(dold, dirp, dnew); ++ err = vfs_link(dold, dirp, dnew, NULL); + if (!err) { + if (EX_ISSYNC(ffhp->fh_export)) { + nfsd_sync_dir(ddir); +@@ -1666,9 +1668,9 @@ nfsd_unlink(struct svc_rqst *rqstp, stru + err = nfserr_perm; + } else + #endif +- err = vfs_unlink(dirp, rdentry); ++ err = vfs_unlink(dirp, rdentry, NULL); + } else { /* It's RMDIR */ +- err = vfs_rmdir(dirp, rdentry); ++ err = vfs_rmdir(dirp, rdentry, NULL); + } + + dput(rdentry); +@@ -1780,7 +1782,8 @@ nfsd_permission(struct svc_export *exp, + */ + if (!(acc & MAY_LOCAL_ACCESS)) + if (acc & (MAY_WRITE | MAY_SATTR | MAY_TRUNC)) { +- if (EX_RDONLY(exp) || IS_RDONLY(inode)) ++ if (EX_RDONLY(exp) || IS_RDONLY(inode) ++ || MNT_IS_RDONLY(exp->ex_mnt)) + return nfserr_rofs; + if (/* (acc & MAY_WRITE) && */ IS_IMMUTABLE(inode)) + return nfserr_perm; +Index: vserver-sources-2.0.2_2.6.15.4/fs/open.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/open.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/open.c +@@ -25,6 +25,9 @@ + #include <linux/pagemap.h> + #include <linux/syscalls.h> + #include <linux/rcupdate.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/xid.h> + + #include <asm/unistd.h> + +@@ -43,6 +46,8 @@ int vfs_statfs(struct super_block *sb, s + if (retval == 0 && buf->f_frsize == 0) + buf->f_frsize = buf->f_bsize; + } ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ vx_vsi_statfs(sb, buf); + } + return retval; + } +@@ -245,7 +250,7 @@ static inline long do_sys_truncate(const + goto dput_and_out; + + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt)) + goto dput_and_out; + + error = -EPERM; +@@ -369,7 +374,7 @@ asmlinkage long sys_utime(char __user * + inode = nd.dentry->d_inode; + + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt)) + goto dput_and_out; + + /* Don't worry, the checks are done in inode_change_ok() */ +@@ -426,7 +431,7 @@ long do_utimes(char __user * filename, s + inode = nd.dentry->d_inode; + + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt)) + goto dput_and_out; + + /* Don't worry, the checks are done in inode_change_ok() */ +@@ -508,7 +513,8 @@ asmlinkage long sys_access(const char __ + if (!res) { + res = vfs_permission(&nd, mode); + /* SuS v2 requires we report a read only fs too */ +- if(!res && (mode & S_IWOTH) && IS_RDONLY(nd.dentry->d_inode) ++ if(!res && (mode & S_IWOTH) ++ && (IS_RDONLY(nd.dentry->d_inode) || MNT_IS_RDONLY(nd.mnt)) + && !special_file(nd.dentry->d_inode->i_mode)) + res = -EROFS; + path_release(&nd); +@@ -614,7 +620,7 @@ asmlinkage long sys_fchmod(unsigned int + inode = dentry->d_inode; + + err = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(file->f_vfsmnt)) + goto out_putf; + err = -EPERM; + if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) +@@ -646,7 +652,7 @@ asmlinkage long sys_chmod(const char __u + inode = nd.dentry->d_inode; + + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(nd.mnt)) + goto dput_and_out; + + error = -EPERM; +@@ -667,7 +673,8 @@ out: + return error; + } + +-static int chown_common(struct dentry * dentry, uid_t user, gid_t group) ++static int chown_common(struct dentry *dentry, struct vfsmount *mnt, ++ uid_t user, gid_t group) + { + struct inode * inode; + int error; +@@ -679,7 +686,7 @@ static int chown_common(struct dentry * + goto out; + } + error = -EROFS; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) + goto out; + error = -EPERM; + if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) +@@ -687,11 +694,11 @@ static int chown_common(struct dentry * + newattrs.ia_valid = ATTR_CTIME; + if (user != (uid_t) -1) { + newattrs.ia_valid |= ATTR_UID; +- newattrs.ia_uid = user; ++ newattrs.ia_uid = vx_map_uid(user); + } + if (group != (gid_t) -1) { + newattrs.ia_valid |= ATTR_GID; +- newattrs.ia_gid = group; ++ newattrs.ia_gid = vx_map_gid(group); + } + if (!S_ISDIR(inode->i_mode)) + newattrs.ia_valid |= ATTR_KILL_SUID|ATTR_KILL_SGID; +@@ -709,7 +716,7 @@ asmlinkage long sys_chown(const char __u + + error = user_path_walk(filename, &nd); + if (!error) { +- error = chown_common(nd.dentry, user, group); ++ error = chown_common(nd.dentry, nd.mnt, user, group); + path_release(&nd); + } + return error; +@@ -722,7 +729,7 @@ asmlinkage long sys_lchown(const char __ + + error = user_path_walk_link(filename, &nd); + if (!error) { +- error = chown_common(nd.dentry, user, group); ++ error = chown_common(nd.dentry, nd.mnt, user, group); + path_release(&nd); + } + return error; +@@ -736,7 +743,7 @@ asmlinkage long sys_fchown(unsigned int + + file = fget(fd); + if (file) { +- error = chown_common(file->f_dentry, user, group); ++ error = chown_common(file->f_dentry, file->f_vfsmnt, user, group); + fput(file); + } + return error; +@@ -954,6 +961,7 @@ repeat: + FD_SET(fd, fdt->open_fds); + FD_CLR(fd, fdt->close_on_exec); + fdt->next_fd = fd + 1; ++ vx_openfd_inc(fd); + #if 1 + /* Sanity check */ + if (fdt->fd[fd] != NULL) { +@@ -976,6 +984,7 @@ static inline void __put_unused_fd(struc + __FD_CLR(fd, fdt->open_fds); + if (fd < fdt->next_fd) + fdt->next_fd = fd; ++ vx_openfd_dec(fd); + } + + void fastcall put_unused_fd(unsigned int fd) +Index: vserver-sources-2.0.2_2.6.15.4/fs/proc/array.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/proc/array.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/proc/array.c +@@ -75,6 +75,9 @@ + #include <linux/times.h> + #include <linux/cpuset.h> + #include <linux/rcupdate.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/pgtable.h> +@@ -135,7 +138,9 @@ static const char *task_state_array[] = + "T (stopped)", /* 4 */ + "T (tracing stop)", /* 8 */ + "Z (zombie)", /* 16 */ +- "X (dead)" /* 32 */ ++ "X (dead)", /* 32 */ ++ "N (noninteractive)", /* 64 */ ++ "H (on hold)" /* 128 */ + }; + + static inline const char * get_task_state(struct task_struct *tsk) +@@ -144,7 +149,8 @@ static inline const char * get_task_stat + TASK_INTERRUPTIBLE | + TASK_UNINTERRUPTIBLE | + TASK_STOPPED | +- TASK_TRACED)) | ++ TASK_TRACED | ++ TASK_ONHOLD)) | + (tsk->exit_state & (EXIT_ZOMBIE | + EXIT_DEAD)); + const char **p = &task_state_array[0]; +@@ -161,8 +167,13 @@ static inline char * task_state(struct t + struct group_info *group_info; + int g; + struct fdtable *fdt = NULL; ++ pid_t pid, ptgid, tppid, tgid; + + read_lock(&tasklist_lock); ++ tgid = vx_map_tgid(p->tgid); ++ pid = vx_map_pid(p->pid); ++ ptgid = vx_map_pid(p->group_leader->real_parent->tgid); ++ tppid = vx_map_pid(p->parent->pid); + buffer += sprintf(buffer, + "State:\t%s\n" + "SleepAVG:\t%lu%%\n" +@@ -174,9 +185,8 @@ static inline char * task_state(struct t + "Gid:\t%d\t%d\t%d\t%d\n", + get_task_state(p), + (p->sleep_avg/1024)*100/(1020000000/1024), +- p->tgid, +- p->pid, pid_alive(p) ? p->group_leader->real_parent->tgid : 0, +- pid_alive(p) && p->ptrace ? p->parent->pid : 0, ++ tgid, pid, (pid > 1) ? ptgid : 0, ++ pid_alive(p) && p->ptrace ? tppid : 0, + p->uid, p->euid, p->suid, p->fsuid, + p->gid, p->egid, p->sgid, p->fsgid); + read_unlock(&tasklist_lock); +@@ -296,6 +306,12 @@ static inline char *task_cap(struct task + int proc_pid_status(struct task_struct *task, char * buffer) + { + char * orig = buffer; ++#ifdef CONFIG_VSERVER_LEGACY ++ struct vx_info *vxi; ++#endif ++#ifdef CONFIG_VSERVER_LEGACYNET ++ struct nx_info *nxi; ++#endif + struct mm_struct *mm = get_task_mm(task); + + buffer = task_name(task, buffer); +@@ -308,6 +324,46 @@ int proc_pid_status(struct task_struct * + buffer = task_sig(task, buffer); + buffer = task_cap(task, buffer); + buffer = cpuset_task_status_allowed(task, buffer); ++ ++ if (task_vx_flags(task, VXF_INFO_HIDE, 0)) ++ goto skip; ++#ifdef CONFIG_VSERVER_LEGACY ++ buffer += sprintf (buffer,"s_context: %d\n", vx_task_xid(task)); ++ vxi = task_get_vx_info(task); ++ if (vxi) { ++ buffer += sprintf (buffer,"ctxflags: %08llx\n" ++ ,(unsigned long long)vxi->vx_flags); ++ buffer += sprintf (buffer,"initpid: %d\n" ++ ,vxi->vx_initpid); ++ } else { ++ buffer += sprintf (buffer,"ctxflags: none\n"); ++ buffer += sprintf (buffer,"initpid: none\n"); ++ } ++ put_vx_info(vxi); ++#else ++ buffer += sprintf (buffer,"VxID: %d\n", vx_task_xid(task)); ++#endif ++#ifdef CONFIG_VSERVER_LEGACYNET ++ nxi = task_get_nx_info(task); ++ if (nxi) { ++ int i; ++ ++ buffer += sprintf (buffer,"ipv4root:"); ++ for (i=0; i<nxi->nbipv4; i++){ ++ buffer += sprintf (buffer," %08x/%08x" ++ ,nxi->ipv4[i] ++ ,nxi->mask[i]); ++ } ++ *buffer++ = '\n'; ++ buffer += sprintf (buffer,"ipv4root_bcast: %08x\n" ++ ,nxi->v4_bcast); ++ } else { ++ buffer += sprintf (buffer,"ipv4root: 0\n"); ++ buffer += sprintf (buffer,"ipv4root_bcast: 0\n"); ++ } ++ put_nx_info(nxi); ++#endif ++skip: + #if defined(CONFIG_ARCH_S390) + buffer = task_show_regs(task, buffer); + #endif +@@ -322,7 +378,7 @@ static int do_task_stat(struct task_stru + sigset_t sigign, sigcatch; + char state; + int res; +- pid_t ppid, pgid = -1, sid = -1; ++ pid_t pid, ppid, pgid = -1, sid = -1; + int num_threads = 0; + struct mm_struct *mm; + unsigned long long start_time; +@@ -388,7 +444,11 @@ static int do_task_stat(struct task_stru + } + it_real_value = task->signal->it_real_value; + } +- ppid = pid_alive(task) ? task->group_leader->real_parent->tgid : 0; ++ pid = vx_info_map_pid(task->vx_info, pid_alive(task) ? task->pid : 0); ++ ppid = (!(pid > 1)) ? 0 : vx_info_map_tgid(task->vx_info, ++ task->group_leader->real_parent->tgid); ++ pgid = vx_info_map_pid(task->vx_info, pgid); ++ + read_unlock(&tasklist_lock); + + if (!whole || num_threads<2) +@@ -412,10 +472,21 @@ static int do_task_stat(struct task_stru + /* convert nsec -> ticks */ + start_time = nsec_to_clock_t(start_time); + ++ /* fixup start time for virt uptime */ ++ if (vx_flags(VXF_VIRT_UPTIME, 0)) { ++ unsigned long long bias = ++ current->vx_info->cvirt.bias_clock; ++ ++ if (start_time > bias) ++ start_time -= bias; ++ else ++ start_time = 0; ++ } ++ + res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \ + %lu %lu %lu %lu %lu %ld %ld %ld %ld %d %ld %llu %lu %ld %lu %lu %lu %lu %lu \ + %lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n", +- task->pid, ++ pid, + tcomm, + state, + ppid, +Index: vserver-sources-2.0.2_2.6.15.4/fs/proc/base.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/proc/base.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/proc/base.c +@@ -71,6 +71,8 @@ + #include <linux/cpuset.h> + #include <linux/audit.h> + #include <linux/poll.h> ++#include <linux/vs_cvirt.h> ++#include <linux/vs_network.h> + #include "internal.h" + + /* +@@ -120,6 +122,8 @@ enum pid_directory_inos { + PROC_TGID_ATTR_EXEC, + PROC_TGID_ATTR_FSCREATE, + #endif ++ PROC_TGID_VX_INFO, ++ PROC_TGID_IP_INFO, + #ifdef CONFIG_AUDITSYSCALL + PROC_TGID_LOGINUID, + #endif +@@ -160,6 +164,8 @@ enum pid_directory_inos { + PROC_TID_ATTR_EXEC, + PROC_TID_ATTR_FSCREATE, + #endif ++ PROC_TID_VX_INFO, ++ PROC_TID_IP_INFO, + #ifdef CONFIG_AUDITSYSCALL + PROC_TID_LOGINUID, + #endif +@@ -215,6 +221,8 @@ static struct pid_entry tgid_base_stuff[ + #ifdef CONFIG_CPUSETS + E(PROC_TGID_CPUSET, "cpuset", S_IFREG|S_IRUGO), + #endif ++ E(PROC_TGID_VX_INFO, "vinfo", S_IFREG|S_IRUGO), ++ E(PROC_TGID_IP_INFO, "ninfo", S_IFREG|S_IRUGO), + E(PROC_TGID_OOM_SCORE, "oom_score",S_IFREG|S_IRUGO), + E(PROC_TGID_OOM_ADJUST,"oom_adj", S_IFREG|S_IRUGO|S_IWUSR), + #ifdef CONFIG_AUDITSYSCALL +@@ -257,6 +265,8 @@ static struct pid_entry tid_base_stuff[] + #ifdef CONFIG_CPUSETS + E(PROC_TID_CPUSET, "cpuset", S_IFREG|S_IRUGO), + #endif ++ E(PROC_TID_VX_INFO, "vinfo", S_IFREG|S_IRUGO), ++ E(PROC_TID_IP_INFO, "ninfo", S_IFREG|S_IRUGO), + E(PROC_TID_OOM_SCORE, "oom_score",S_IFREG|S_IRUGO), + E(PROC_TID_OOM_ADJUST, "oom_adj", S_IFREG|S_IRUGO|S_IWUSR), + #ifdef CONFIG_AUDITSYSCALL +@@ -530,12 +540,19 @@ static int proc_oom_score(struct task_st + + /* If the process being read is separated by chroot from the reading process, + * don't let the reader access the threads. ++ * ++ * note: this does dput(root) and mntput(vfsmnt) on exit. + */ + static int proc_check_chroot(struct dentry *root, struct vfsmount *vfsmnt) + { + struct dentry *de, *base; + struct vfsmount *our_vfsmnt, *mnt; + int res = 0; ++ ++ /* context admin override */ ++ if (capable(CAP_CONTEXT)) ++ goto override; ++ + read_lock(¤t->fs->lock); + our_vfsmnt = mntget(current->fs->rootmnt); + base = dget(current->fs->root); +@@ -545,11 +562,11 @@ static int proc_check_chroot(struct dent + de = root; + mnt = vfsmnt; + +- while (vfsmnt != our_vfsmnt) { +- if (vfsmnt == vfsmnt->mnt_parent) ++ while (mnt != our_vfsmnt) { ++ if (mnt == mnt->mnt_parent) + goto out; +- de = vfsmnt->mnt_mountpoint; +- vfsmnt = vfsmnt->mnt_parent; ++ de = mnt->mnt_mountpoint; ++ mnt = mnt->mnt_parent; + } + + if (!is_subdir(de, base)) +@@ -559,8 +576,9 @@ static int proc_check_chroot(struct dent + exit: + dput(base); + mntput(our_vfsmnt); ++override: + dput(root); +- mntput(mnt); ++ mntput(vfsmnt); + return res; + out: + spin_unlock(&vfsmount_lock); +@@ -1220,7 +1238,7 @@ static int proc_pident_readdir(struct fi + struct inode *inode = dentry->d_inode; + struct pid_entry *p; + ino_t ino; +- int ret; ++ int ret, hide; + + ret = -ENOENT; + if (!pid_alive(proc_task(inode))) +@@ -1251,11 +1269,20 @@ static int proc_pident_readdir(struct fi + goto out; + } + p = ents + i; ++ hide = vx_flags(VXF_INFO_HIDE, 0); + while (p->name) { ++ if (hide) { ++ switch (p->type) { ++ case PROC_TGID_VX_INFO: ++ case PROC_TGID_IP_INFO: ++ goto skip; ++ } ++ } + if (filldir(dirent, p->name, p->len, filp->f_pos, + fake_ino(pid, p->type), p->mode >> 12) < 0) + goto out; + filp->f_pos++; ++ skip: + p++; + } + } +@@ -1329,6 +1356,7 @@ static struct inode *proc_pid_make_inode + inode->i_uid = task->euid; + inode->i_gid = task->egid; + } ++ inode->i_xid = vx_task_xid(task); + security_task_to_inode(task, inode); + + out: +@@ -1354,6 +1382,11 @@ static int pid_revalidate(struct dentry + { + struct inode *inode = dentry->d_inode; + struct task_struct *task = proc_task(inode); ++ ++ if (!vx_check(vx_task_xid(task), VX_IDENT)) ++ goto out_drop; ++ /* discard wrong fakeinit */ ++ + if (pid_alive(task)) { + if (proc_type(inode) == PROC_TGID_INO || proc_type(inode) == PROC_TID_INO || task_dumpable(task)) { + inode->i_uid = task->euid; +@@ -1365,6 +1398,7 @@ static int pid_revalidate(struct dentry + security_task_to_inode(task, inode); + return 1; + } ++out_drop: + d_drop(dentry); + return 0; + } +@@ -1599,6 +1633,9 @@ static struct file_operations proc_tgid_ + static struct inode_operations proc_tgid_attr_inode_operations; + #endif + ++extern int proc_pid_vx_info(struct task_struct *, char *); ++extern int proc_pid_nx_info(struct task_struct *, char *); ++ + static int get_tid_list(int index, unsigned int *tids, struct inode *dir); + + /* SMP-safe */ +@@ -1786,15 +1823,33 @@ static struct dentry *proc_pident_lookup + inode->i_fop = &proc_loginuid_operations; + break; + #endif ++ case PROC_TID_VX_INFO: ++ case PROC_TGID_VX_INFO: ++ if (task_vx_flags(task, VXF_INFO_HIDE, 0)) ++ goto out_noent; ++ inode->i_fop = &proc_info_file_operations; ++ ei->op.proc_read = proc_pid_vx_info; ++ break; ++ case PROC_TID_IP_INFO: ++ case PROC_TGID_IP_INFO: ++ if (task_vx_flags(task, VXF_INFO_HIDE, 0)) ++ goto out_noent; ++ inode->i_fop = &proc_info_file_operations; ++ ei->op.proc_read = proc_pid_nx_info; ++ break; + default: + printk("procfs: impossible type (%d)",p->type); +- iput(inode); +- return ERR_PTR(-EINVAL); ++ error = -EINVAL; ++ goto out_put; + } + dentry->d_op = &pid_dentry_operations; + d_add(dentry, inode); + return NULL; + ++out_noent: ++ error=-ENOENT; ++out_put: ++ iput(inode); + out: + return ERR_PTR(error); + } +@@ -1878,14 +1933,14 @@ static int proc_self_readlink(struct den + int buflen) + { + char tmp[30]; +- sprintf(tmp, "%d", current->tgid); ++ sprintf(tmp, "%d", vx_map_tgid(current->tgid)); + return vfs_readlink(dentry,buffer,buflen,tmp); + } + + static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd) + { + char tmp[30]; +- sprintf(tmp, "%d", current->tgid); ++ sprintf(tmp, "%d", vx_map_tgid(current->tgid)); + return ERR_PTR(vfs_follow_link(nd,tmp)); + } + +@@ -1948,6 +2003,20 @@ void proc_pid_flush(struct dentry *proc_ + } + } + ++#define VXF_FAKE_INIT (VXF_INFO_INIT|VXF_STATE_INIT) ++ ++static inline int proc_pid_visible(struct task_struct *task, int pid) ++{ ++ if ((pid == 1) && ++ !vx_flags(VXF_FAKE_INIT, VXF_FAKE_INIT)) ++ goto visible; ++ if (vx_check(vx_task_xid(task), VX_WATCH|VX_IDENT)) ++ goto visible; ++ return 0; ++visible: ++ return 1; ++} ++ + /* SMP-safe */ + struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd) + { +@@ -1984,13 +2053,14 @@ struct dentry *proc_pid_lookup(struct in + if (!task) + goto out; + +- inode = proc_pid_make_inode(dir->i_sb, task, PROC_TGID_INO); ++ /* check for context visibility */ ++ if (!proc_pid_visible(task, tgid)) ++ goto out_drop_task; + ++ inode = proc_pid_make_inode(dir->i_sb, task, PROC_TGID_INO); ++ if (!inode) ++ goto out_drop_task; + +- if (!inode) { +- put_task_struct(task); +- goto out; +- } + inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; + inode->i_op = &proc_tgid_base_inode_operations; + inode->i_fop = &proc_tgid_base_operations; +@@ -2019,6 +2089,8 @@ struct dentry *proc_pid_lookup(struct in + goto out; + } + return NULL; ++out_drop_task: ++ put_task_struct(task); + out: + return ERR_PTR(-ENOENT); + } +@@ -2034,6 +2106,8 @@ static struct dentry *proc_task_lookup(s + tid = name_to_int(dentry); + if (tid == ~0U) + goto out; ++ if (vx_current_initpid(tid)) ++ goto out; + + read_lock(&tasklist_lock); + task = find_task_by_pid(tid); +@@ -2045,11 +2119,14 @@ static struct dentry *proc_task_lookup(s + if (leader->tgid != task->tgid) + goto out_drop_task; + +- inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_INO); +- ++ /* check for context visibility */ ++ if (!proc_pid_visible(task, tid)) ++ goto out_drop_task; + ++ inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_INO); + if (!inode) + goto out_drop_task; ++ + inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO; + inode->i_op = &proc_tid_base_inode_operations; + inode->i_fop = &proc_tid_base_operations; +@@ -2089,7 +2166,7 @@ static int get_tgid_list(int index, unsi + read_lock(&tasklist_lock); + p = NULL; + if (version) { +- p = find_task_by_pid(version); ++ p = find_task_by_real_pid(version); + if (p && !thread_group_leader(p)) + p = NULL; + } +@@ -2101,11 +2178,15 @@ static int get_tgid_list(int index, unsi + + for ( ; p != &init_task; p = next_task(p)) { + int tgid = p->pid; ++ + if (!pid_alive(p)) + continue; ++ /* check for context visibility */ ++ if (!proc_pid_visible(p, tgid)) ++ continue; + if (--index >= 0) + continue; +- tgids[nr_tgids] = tgid; ++ tgids[nr_tgids] = vx_map_tgid(tgid); + nr_tgids++; + if (nr_tgids >= PROC_MAXPIDS) + break; +@@ -2135,10 +2216,13 @@ static int get_tid_list(int index, unsig + if (pid_alive(task)) do { + int tid = task->pid; + ++ /* check for context visibility */ ++ if (!proc_pid_visible(task, tid)) ++ continue; + if (--index >= 0) + continue; + if (tids != NULL) +- tids[nr_tids] = tid; ++ tids[nr_tids] = vx_map_pid(tid); + nr_tids++; + if (nr_tids >= PROC_MAXPIDS) + break; +@@ -2214,11 +2298,14 @@ static int proc_task_readdir(struct file + unsigned int nr_tids, i; + struct dentry *dentry = filp->f_dentry; + struct inode *inode = dentry->d_inode; ++ struct task_struct *task = proc_task(inode); + int retval = -ENOENT; + ino_t ino; + unsigned long pos = filp->f_pos; /* avoiding "long long" filp->f_pos */ + +- if (!pid_alive(proc_task(inode))) ++ if (!vx_check(vx_task_xid(task), VX_WATCH|VX_IDENT)) ++ goto out; ++ if (!pid_alive(task)) + goto out; + retval = 0; + +Index: vserver-sources-2.0.2_2.6.15.4/fs/proc/generic.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/proc/generic.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/proc/generic.c +@@ -19,6 +19,7 @@ + #include <linux/idr.h> + #include <linux/namei.h> + #include <linux/bitops.h> ++#include <linux/vserver/inode.h> + #include <asm/uaccess.h> + + static ssize_t proc_file_read(struct file *file, char __user *buf, +@@ -383,11 +384,15 @@ struct dentry *proc_lookup(struct inode + for (de = de->subdir; de ; de = de->next) { + if (de->namelen != dentry->d_name.len) + continue; ++ if (!vx_hide_check(0, de->vx_flags)) ++ continue; + if (!memcmp(dentry->d_name.name, de->name, de->namelen)) { + unsigned int ino = de->low_ino; + + error = -EINVAL; + inode = proc_get_inode(dir->i_sb, ino, de); ++ /* generic proc entries belong to the host */ ++ inode->i_xid = 0; + break; + } + } +@@ -459,9 +464,12 @@ int proc_readdir(struct file * filp, + } + + do { ++ if (!vx_hide_check(0, de->vx_flags)) ++ goto skip; + if (filldir(dirent, de->name, de->namelen, filp->f_pos, + de->low_ino, de->mode >> 12) < 0) + goto out; ++ skip: + filp->f_pos++; + de = de->next; + } while (de); +@@ -579,6 +587,7 @@ static struct proc_dir_entry *proc_creat + ent->namelen = len; + ent->mode = mode; + ent->nlink = nlink; ++ ent->vx_flags = IATTR_PROC_DEFAULT; + out: + return ent; + } +@@ -599,7 +608,8 @@ struct proc_dir_entry *proc_symlink(cons + kfree(ent->data); + kfree(ent); + ent = NULL; +- } ++ } else ++ ent->vx_flags = IATTR_PROC_SYMLINK; + } else { + kfree(ent); + ent = NULL; +Index: vserver-sources-2.0.2_2.6.15.4/fs/proc/inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/proc/inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/proc/inode.c +@@ -170,6 +170,8 @@ struct inode *proc_get_inode(struct supe + inode->i_uid = de->uid; + inode->i_gid = de->gid; + } ++ if (de->vx_flags) ++ PROC_I(inode)->vx_flags = de->vx_flags; + if (de->size) + inode->i_size = de->size; + if (de->nlink) +Index: vserver-sources-2.0.2_2.6.15.4/fs/proc/proc_misc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/proc/proc_misc.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/proc/proc_misc.c +@@ -52,6 +52,8 @@ + #include <asm/div64.h> + #include "internal.h" + ++#include <linux/vs_cvirt.h> ++ + #define LOAD_INT(x) ((x) >> FSHIFT) + #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) + /* +@@ -82,17 +84,32 @@ static int proc_calc_metrics(char *page, + static int loadavg_read_proc(char *page, char **start, off_t off, + int count, int *eof, void *data) + { ++ unsigned int running, threads; + int a, b, c; + int len; + +- a = avenrun[0] + (FIXED_1/200); +- b = avenrun[1] + (FIXED_1/200); +- c = avenrun[2] + (FIXED_1/200); +- len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n", ++ if (vx_flags(VXF_VIRT_LOAD, 0)) { ++ struct vx_info *vxi = current->vx_info; ++ ++ a = vxi->cvirt.load[0] + (FIXED_1/200); ++ b = vxi->cvirt.load[1] + (FIXED_1/200); ++ c = vxi->cvirt.load[2] + (FIXED_1/200); ++ ++ running = atomic_read(&vxi->cvirt.nr_running); ++ threads = atomic_read(&vxi->cvirt.nr_threads); ++ } else { ++ a = avenrun[0] + (FIXED_1/200); ++ b = avenrun[1] + (FIXED_1/200); ++ c = avenrun[2] + (FIXED_1/200); ++ ++ running = nr_running(); ++ threads = nr_threads; ++ } ++ len = sprintf(page,"%d.%02d %d.%02d %d.%02d %d/%d %d\n", + LOAD_INT(a), LOAD_FRAC(a), + LOAD_INT(b), LOAD_FRAC(b), + LOAD_INT(c), LOAD_FRAC(c), +- nr_running(), nr_threads, last_pid); ++ running, threads, last_pid); + return proc_calc_metrics(page, start, off, count, eof, len); + } + +@@ -106,6 +123,9 @@ static int uptime_read_proc(char *page, + + do_posix_clock_monotonic_gettime(&uptime); + cputime_to_timespec(idletime, &idle); ++ if (vx_flags(VXF_VIRT_UPTIME, 0)) ++ vx_vsi_uptime(&uptime, &idle); ++ + len = sprintf(page,"%lu.%02lu %lu.%02lu\n", + (unsigned long) uptime.tv_sec, + (uptime.tv_nsec / (NSEC_PER_SEC / 100)), +@@ -143,7 +163,7 @@ static int meminfo_read_proc(char *page, + * sysctl_overcommit_ratio / 100) + total_swap_pages; + + cached = get_page_cache_size() - total_swapcache_pages - i.bufferram; +- if (cached < 0) ++ if (cached < 0 || vx_flags(VXF_VIRT_MEM, 0)) + cached = 0; + + get_vmalloc_info(&vmi); +@@ -238,8 +258,9 @@ static int version_read_proc(char *page, + { + int len; + +- strcpy(page, linux_banner); +- len = strlen(page); ++ len = sprintf(page, vx_linux_banner, ++ vx_new_uts(release), ++ vx_new_uts(version)); + return proc_calc_metrics(page, start, off, count, eof, len); + } + +Index: vserver-sources-2.0.2_2.6.15.4/fs/proc/root.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/proc/root.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/proc/root.c +@@ -23,6 +23,9 @@ struct proc_dir_entry *proc_net, *proc_n + #ifdef CONFIG_SYSCTL + struct proc_dir_entry *proc_sys_root; + #endif ++struct proc_dir_entry *proc_virtual; ++ ++extern void proc_vx_init(void); + + static struct super_block *proc_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data) +@@ -77,6 +80,7 @@ void __init proc_root_init(void) + proc_device_tree_init(); + #endif + proc_bus = proc_mkdir("bus", NULL); ++ proc_vx_init(); + } + + static struct dentry *proc_root_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd) +Index: vserver-sources-2.0.2_2.6.15.4/fs/quota.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/quota.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/quota.c +@@ -16,6 +16,9 @@ + #include <linux/syscalls.h> + #include <linux/buffer_head.h> + #include <linux/quotaops.h> ++#include <linux/major.h> ++#include <linux/blkdev.h> ++#include <linux/vserver/debug.h> + + /* Check validity of generic quotactl commands */ + static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id) +@@ -80,11 +83,11 @@ static int generic_quotactl_valid(struct + if (cmd == Q_GETQUOTA) { + if (((type == USRQUOTA && current->euid != id) || + (type == GRPQUOTA && !in_egroup_p(id))) && +- !capable(CAP_SYS_ADMIN)) ++ !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return -EPERM; + } + else if (cmd != Q_GETFMT && cmd != Q_SYNC && cmd != Q_GETINFO) +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return -EPERM; + + return 0; +@@ -131,10 +134,10 @@ static int xqm_quotactl_valid(struct sup + if (cmd == Q_XGETQUOTA) { + if (((type == XQM_USRQUOTA && current->euid != id) || + (type == XQM_GRPQUOTA && !in_egroup_p(id))) && +- !capable(CAP_SYS_ADMIN)) ++ !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return -EPERM; + } else if (cmd != Q_XGETQSTAT && cmd != Q_XQUOTASYNC) { +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL)) + return -EPERM; + } + +@@ -336,6 +339,43 @@ static int do_quotactl(struct super_bloc + return 0; + } + ++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE) ++ ++#include <linux/vroot.h> ++#include <linux/kallsyms.h> ++ ++static vroot_grb_func *vroot_get_real_bdev = NULL; ++ ++static spinlock_t vroot_grb_lock = SPIN_LOCK_UNLOCKED; ++ ++int register_vroot_grb(vroot_grb_func *func) { ++ int ret = -EBUSY; ++ ++ spin_lock(&vroot_grb_lock); ++ if (!vroot_get_real_bdev) { ++ vroot_get_real_bdev = func; ++ ret = 0; ++ } ++ spin_unlock(&vroot_grb_lock); ++ return ret; ++} ++EXPORT_SYMBOL(register_vroot_grb); ++ ++int unregister_vroot_grb(vroot_grb_func *func) { ++ int ret = -EINVAL; ++ ++ spin_lock(&vroot_grb_lock); ++ if (vroot_get_real_bdev) { ++ vroot_get_real_bdev = NULL; ++ ret = 0; ++ } ++ spin_unlock(&vroot_grb_lock); ++ return ret; ++} ++EXPORT_SYMBOL(unregister_vroot_grb); ++ ++#endif ++ + /* + * This is the system call interface. This communicates with + * the user-level programs. Currently this only supports diskquota +@@ -361,6 +401,23 @@ asmlinkage long sys_quotactl(unsigned in + putname(tmp); + if (IS_ERR(bdev)) + return PTR_ERR(bdev); ++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE) ++ if (bdev && bdev->bd_inode && ++ imajor(bdev->bd_inode) == VROOT_MAJOR) { ++ struct block_device *bdnew = (void *)-EINVAL; ++ ++ if (vroot_get_real_bdev) ++ bdnew = vroot_get_real_bdev(bdev); ++ else ++ vxdprintk(VXD_CBIT(misc, 0), ++ "vroot_get_real_bdev not set"); ++ ++ bdput(bdev); ++ if (IS_ERR(bdnew)) ++ return PTR_ERR(bdnew); ++ bdev = bdnew; ++ } ++#endif + sb = get_super(bdev); + bdput(bdev); + if (!sb) +Index: vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/bitmap.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/reiserfs/bitmap.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/bitmap.c +@@ -13,6 +13,7 @@ + #include <linux/reiserfs_fs_sb.h> + #include <linux/reiserfs_fs_i.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + + #define PREALLOCATION_SIZE 9 + +@@ -411,8 +412,10 @@ static void _reiserfs_free_block(struct + set_sb_free_blocks(rs, sb_free_blocks(rs) + 1); + + journal_mark_dirty(th, s, sbh); +- if (for_unformatted) ++ if (for_unformatted) { ++ DLIMIT_FREE_BLOCK(inode, 1); + DQUOT_FREE_BLOCK_NODIRTY(inode, 1); ++ } + } + + void reiserfs_free_block(struct reiserfs_transaction_handle *th, +@@ -1021,6 +1024,7 @@ static inline int blocknrs_and_prealloc_ + int passno = 0; + int nr_allocated = 0; + int bigalloc = 0; ++ int blocks; + + determine_prealloc_size(hint); + if (!hint->formatted_node) { +@@ -1030,22 +1034,34 @@ static inline int blocknrs_and_prealloc_ + "reiserquota: allocating %d blocks id=%u", + amount_needed, hint->inode->i_uid); + #endif +- quota_ret = +- DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode, amount_needed); +- if (quota_ret) /* Quota exceeded? */ ++ quota_ret = DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode, ++ amount_needed); ++ if (quota_ret) + return QUOTA_EXCEEDED; ++ if (DLIMIT_ALLOC_BLOCK(hint->inode, amount_needed)) { ++ DQUOT_FREE_BLOCK_NODIRTY(hint->inode, ++ amount_needed); ++ return NO_DISK_SPACE; ++ } ++ + if (hint->preallocate && hint->prealloc_size) { + #ifdef REISERQUOTA_DEBUG + reiserfs_debug(s, REISERFS_DEBUG_CODE, + "reiserquota: allocating (prealloc) %d blocks id=%u", + hint->prealloc_size, hint->inode->i_uid); + #endif +- quota_ret = +- DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode, +- hint->prealloc_size); ++ quota_ret = DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode, ++ hint->prealloc_size); ++ if (!quota_ret && ++ DLIMIT_ALLOC_BLOCK(hint->inode, hint->prealloc_size)) { ++ DQUOT_FREE_BLOCK_NODIRTY(hint->inode, ++ hint->prealloc_size); ++ quota_ret = 1; ++ } + if (quota_ret) + hint->preallocate = hint->prealloc_size = 0; + } ++ + /* for unformatted nodes, force large allocations */ + bigalloc = amount_needed; + } +@@ -1093,7 +1109,10 @@ static inline int blocknrs_and_prealloc_ + nr_allocated, + hint->inode->i_uid); + #endif +- DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed + hint->prealloc_size - nr_allocated); /* Free not allocated blocks */ ++ /* Free not allocated blocks */ ++ blocks = amount_needed + hint->prealloc_size - nr_allocated; ++ DLIMIT_FREE_BLOCK(hint->inode, blocks); ++ DQUOT_FREE_BLOCK_NODIRTY(hint->inode, blocks); + } + while (nr_allocated--) + reiserfs_free_block(hint->th, hint->inode, +@@ -1125,10 +1144,10 @@ static inline int blocknrs_and_prealloc_ + REISERFS_I(hint->inode)->i_prealloc_count, + hint->inode->i_uid); + #endif +- DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed + +- hint->prealloc_size - nr_allocated - +- REISERFS_I(hint->inode)-> +- i_prealloc_count); ++ blocks = amount_needed + hint->prealloc_size - nr_allocated - ++ REISERFS_I(hint->inode)->i_prealloc_count; ++ DLIMIT_FREE_BLOCK(hint->inode, blocks); ++ DQUOT_FREE_BLOCK_NODIRTY(hint->inode, blocks); + } + + return CARRY_ON; +Index: vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/file.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/reiserfs/file.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/file.c +@@ -1567,4 +1567,5 @@ struct inode_operations reiserfs_file_in + .listxattr = reiserfs_listxattr, + .removexattr = reiserfs_removexattr, + .permission = reiserfs_permission, ++ .sync_flags = reiserfs_sync_flags, + }; +Index: vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/reiserfs/inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/inode.c +@@ -17,6 +17,8 @@ + #include <linux/mpage.h> + #include <linux/writeback.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/xid.h> + + extern int reiserfs_default_io_size; /* default io size devuned in super.c */ + +@@ -57,6 +59,7 @@ void reiserfs_delete_inode(struct inode + * stat data deletion */ + if (!err) + DQUOT_FREE_INODE(inode); ++ DLIMIT_FREE_INODE(inode); + + if (journal_end(&th, inode->i_sb, jbegin_count)) { + up(&inode->i_sem); +@@ -1130,6 +1133,8 @@ static void init_inode(struct inode *ino + struct buffer_head *bh; + struct item_head *ih; + __u32 rdev; ++ uid_t uid; ++ gid_t gid; + //int version = ITEM_VERSION_1; + + bh = PATH_PLAST_BUFFER(path); +@@ -1153,12 +1158,13 @@ static void init_inode(struct inode *ino + (struct stat_data_v1 *)B_I_PITEM(bh, ih); + unsigned long blocks; + ++ uid = sd_v1_uid(sd); ++ gid = sd_v1_gid(sd); ++ + set_inode_item_key_version(inode, KEY_FORMAT_3_5); + set_inode_sd_version(inode, STAT_DATA_V1); + inode->i_mode = sd_v1_mode(sd); + inode->i_nlink = sd_v1_nlink(sd); +- inode->i_uid = sd_v1_uid(sd); +- inode->i_gid = sd_v1_gid(sd); + inode->i_size = sd_v1_size(sd); + inode->i_atime.tv_sec = sd_v1_atime(sd); + inode->i_mtime.tv_sec = sd_v1_mtime(sd); +@@ -1200,11 +1206,12 @@ static void init_inode(struct inode *ino + // (directories and symlinks) + struct stat_data *sd = (struct stat_data *)B_I_PITEM(bh, ih); + ++ uid = sd_v2_uid(sd); ++ gid = sd_v2_gid(sd); ++ + inode->i_mode = sd_v2_mode(sd); + inode->i_nlink = sd_v2_nlink(sd); +- inode->i_uid = sd_v2_uid(sd); + inode->i_size = sd_v2_size(sd); +- inode->i_gid = sd_v2_gid(sd); + inode->i_mtime.tv_sec = sd_v2_mtime(sd); + inode->i_atime.tv_sec = sd_v2_atime(sd); + inode->i_ctime.tv_sec = sd_v2_ctime(sd); +@@ -1234,6 +1241,10 @@ static void init_inode(struct inode *ino + sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode); + } + ++ inode->i_uid = INOXID_UID(XID_TAG(inode), uid, gid); ++ inode->i_gid = INOXID_GID(XID_TAG(inode), uid, gid); ++ inode->i_xid = INOXID_XID(XID_TAG(inode), uid, gid, 0); ++ + pathrelse(path); + if (S_ISREG(inode->i_mode)) { + inode->i_op = &reiserfs_file_inode_operations; +@@ -1256,13 +1267,15 @@ static void init_inode(struct inode *ino + static void inode2sd(void *sd, struct inode *inode, loff_t size) + { + struct stat_data *sd_v2 = (struct stat_data *)sd; ++ uid_t uid = XIDINO_UID(XID_TAG(inode), inode->i_uid, inode->i_xid); ++ gid_t gid = XIDINO_GID(XID_TAG(inode), inode->i_gid, inode->i_xid); + __u16 flags; + ++ set_sd_v2_uid(sd_v2, uid); ++ set_sd_v2_gid(sd_v2, gid); + set_sd_v2_mode(sd_v2, inode->i_mode); + set_sd_v2_nlink(sd_v2, inode->i_nlink); +- set_sd_v2_uid(sd_v2, inode->i_uid); + set_sd_v2_size(sd_v2, size); +- set_sd_v2_gid(sd_v2, inode->i_gid); + set_sd_v2_mtime(sd_v2, inode->i_mtime.tv_sec); + set_sd_v2_atime(sd_v2, inode->i_atime.tv_sec); + set_sd_v2_ctime(sd_v2, inode->i_ctime.tv_sec); +@@ -1793,6 +1806,10 @@ int reiserfs_new_inode(struct reiserfs_t + + BUG_ON(!th->t_trans_id); + ++ if (DLIMIT_ALLOC_INODE(inode)) { ++ err = -ENOSPC; ++ goto out_bad_dlimit; ++ } + if (DQUOT_ALLOC_INODE(inode)) { + err = -EDQUOT; + goto out_end_trans; +@@ -1978,6 +1995,9 @@ int reiserfs_new_inode(struct reiserfs_t + DQUOT_FREE_INODE(inode); + + out_end_trans: ++ DLIMIT_FREE_INODE(inode); ++ ++ out_bad_dlimit: + journal_end(th, th->t_super, th->t_blocks_allocated); + /* Drop can be outside and it needs more credits so it's better to have it outside */ + DQUOT_DROP(inode); +@@ -2698,6 +2718,14 @@ void sd_attrs_to_i_attrs(__u16 sd_attrs, + inode->i_flags |= S_IMMUTABLE; + else + inode->i_flags &= ~S_IMMUTABLE; ++ if (sd_attrs & REISERFS_IUNLINK_FL) ++ inode->i_flags |= S_IUNLINK; ++ else ++ inode->i_flags &= ~S_IUNLINK; ++ if (sd_attrs & REISERFS_BARRIER_FL) ++ inode->i_flags |= S_BARRIER; ++ else ++ inode->i_flags &= ~S_BARRIER; + if (sd_attrs & REISERFS_APPEND_FL) + inode->i_flags |= S_APPEND; + else +@@ -2720,6 +2748,14 @@ void i_attrs_to_sd_attrs(struct inode *i + *sd_attrs |= REISERFS_IMMUTABLE_FL; + else + *sd_attrs &= ~REISERFS_IMMUTABLE_FL; ++ if (inode->i_flags & S_IUNLINK) ++ *sd_attrs |= REISERFS_IUNLINK_FL; ++ else ++ *sd_attrs &= ~REISERFS_IUNLINK_FL; ++ if (inode->i_flags & S_BARRIER) ++ *sd_attrs |= REISERFS_BARRIER_FL; ++ else ++ *sd_attrs &= ~REISERFS_BARRIER_FL; + if (inode->i_flags & S_SYNC) + *sd_attrs |= REISERFS_SYNC_FL; + else +@@ -2895,6 +2931,22 @@ static ssize_t reiserfs_direct_IO(int rw + reiserfs_get_blocks_direct_io, NULL); + } + ++int reiserfs_sync_flags(struct inode *inode) ++{ ++ u16 oldflags, newflags; ++ ++ oldflags = REISERFS_I(inode)->i_attrs; ++ newflags = oldflags; ++ i_attrs_to_sd_attrs(inode, &newflags); ++ ++ if (oldflags ^ newflags) { ++ REISERFS_I(inode)->i_attrs = newflags; ++ inode->i_ctime = CURRENT_TIME_SEC; ++ mark_inode_dirty(inode); ++ } ++ return 0; ++} ++ + int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) + { + struct inode *inode = dentry->d_inode; +@@ -2939,9 +2991,11 @@ int reiserfs_setattr(struct dentry *dent + } + + error = inode_change_ok(inode, attr); ++ + if (!error) { + if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || +- (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) { ++ (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) || ++ (ia_valid & ATTR_XID && attr->ia_xid != inode->i_xid)) { + error = reiserfs_chown_xattrs(inode, attr); + + if (!error) { +@@ -2971,6 +3025,9 @@ int reiserfs_setattr(struct dentry *dent + inode->i_uid = attr->ia_uid; + if (attr->ia_valid & ATTR_GID) + inode->i_gid = attr->ia_gid; ++ if ((attr->ia_valid & ATTR_XID) && ++ IS_TAGXID(inode)) ++ inode->i_xid = attr->ia_xid; + mark_inode_dirty(inode); + error = + journal_end(&th, inode->i_sb, jbegin_count); +Index: vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/ioctl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/reiserfs/ioctl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/ioctl.c +@@ -3,6 +3,7 @@ + */ + + #include <linux/fs.h> ++#include <linux/mount.h> + #include <linux/reiserfs_fs.h> + #include <linux/time.h> + #include <asm/uaccess.h> +@@ -22,7 +23,7 @@ static int reiserfs_unpack(struct inode + int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, + unsigned long arg) + { +- unsigned int flags; ++ unsigned int flags, oldflags; + + switch (cmd) { + case REISERFS_IOC_UNPACK: +@@ -41,12 +42,14 @@ int reiserfs_ioctl(struct inode *inode, + + flags = REISERFS_I(inode)->i_attrs; + i_attrs_to_sd_attrs(inode, (__u16 *) & flags); ++ flags &= REISERFS_FL_USER_VISIBLE; + return put_user(flags, (int __user *)arg); + case REISERFS_IOC_SETFLAGS:{ + if (!reiserfs_attrs(inode->i_sb)) + return -ENOTTY; + +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + + if ((current->fsuid != inode->i_uid) +@@ -56,10 +59,12 @@ int reiserfs_ioctl(struct inode *inode, + if (get_user(flags, (int __user *)arg)) + return -EFAULT; + +- if (((flags ^ REISERFS_I(inode)-> +- i_attrs) & (REISERFS_IMMUTABLE_FL | +- REISERFS_APPEND_FL)) +- && !capable(CAP_LINUX_IMMUTABLE)) ++ oldflags = REISERFS_I(inode) -> i_attrs; ++ if (((oldflags & REISERFS_IMMUTABLE_FL) || ++ ((flags ^ oldflags) & ++ (REISERFS_IMMUTABLE_FL | REISERFS_IUNLINK_FL | ++ REISERFS_APPEND_FL))) && ++ !capable(CAP_LINUX_IMMUTABLE)) + return -EPERM; + + if ((flags & REISERFS_NOTAIL_FL) && +@@ -70,6 +75,9 @@ int reiserfs_ioctl(struct inode *inode, + if (result) + return result; + } ++ ++ flags = flags & REISERFS_FL_USER_MODIFIABLE; ++ flags |= oldflags & ~REISERFS_FL_USER_MODIFIABLE; + sd_attrs_to_i_attrs(flags, inode); + REISERFS_I(inode)->i_attrs = flags; + inode->i_ctime = CURRENT_TIME_SEC; +@@ -81,7 +89,8 @@ int reiserfs_ioctl(struct inode *inode, + case REISERFS_IOC_SETVERSION: + if ((current->fsuid != inode->i_uid) && !capable(CAP_FOWNER)) + return -EPERM; +- if (IS_RDONLY(inode)) ++ if (IS_RDONLY(inode) || ++ (filp && MNT_IS_RDONLY(filp->f_vfsmnt))) + return -EROFS; + if (get_user(inode->i_generation, (int __user *)arg)) + return -EFAULT; +Index: vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/namei.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/reiserfs/namei.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/namei.c +@@ -19,6 +19,7 @@ + #include <linux/reiserfs_xattr.h> + #include <linux/smp_lock.h> + #include <linux/quotaops.h> ++#include <linux/vserver/xid.h> + + #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { i->i_nlink++; if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; } + #define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) i->i_nlink--; +@@ -365,6 +366,7 @@ static struct dentry *reiserfs_lookup(st + reiserfs_write_unlock(dir->i_sb); + return ERR_PTR(-EACCES); + } ++ vx_propagate_xid(nd, inode); + + /* Propogate the priv_object flag so we know we're in the priv tree */ + if (is_reiserfs_priv_object(dir)) +@@ -604,6 +606,7 @@ static int new_inode_init(struct inode * + } else { + inode->i_gid = current->fsgid; + } ++ inode->i_xid = vx_current_fsxid(inode->i_sb); + DQUOT_INIT(inode); + return 0; + } +@@ -1550,6 +1553,7 @@ struct inode_operations reiserfs_dir_ino + .listxattr = reiserfs_listxattr, + .removexattr = reiserfs_removexattr, + .permission = reiserfs_permission, ++ .sync_flags = reiserfs_sync_flags, + }; + + /* +@@ -1566,6 +1570,7 @@ struct inode_operations reiserfs_symlink + .listxattr = reiserfs_listxattr, + .removexattr = reiserfs_removexattr, + .permission = reiserfs_permission, ++ .sync_flags = reiserfs_sync_flags, + + }; + +@@ -1579,5 +1584,6 @@ struct inode_operations reiserfs_special + .listxattr = reiserfs_listxattr, + .removexattr = reiserfs_removexattr, + .permission = reiserfs_permission, ++ .sync_flags = reiserfs_sync_flags, + + }; +Index: vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/stree.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/reiserfs/stree.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/stree.c +@@ -57,6 +57,7 @@ + #include <linux/smp_lock.h> + #include <linux/buffer_head.h> + #include <linux/quotaops.h> ++#include <linux/vs_dlimit.h> + + /* Does the buffer contain a disk block which is in the tree. */ + inline int B_IS_IN_TREE(const struct buffer_head *p_s_bh) +@@ -1365,6 +1366,7 @@ int reiserfs_delete_item(struct reiserfs + "reiserquota delete_item(): freeing %u, id=%u type=%c", + quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih)); + #endif ++ DLIMIT_FREE_SPACE(p_s_inode, quota_cut_bytes); + DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes); + + /* Return deleted body length */ +@@ -1451,6 +1453,7 @@ void reiserfs_delete_solid_item(struct r + quota_cut_bytes, inode->i_uid, + key2type(key)); + #endif ++ DLIMIT_FREE_SPACE(inode, quota_cut_bytes); + DQUOT_FREE_SPACE_NODIRTY(inode, + quota_cut_bytes); + } +@@ -1808,6 +1811,7 @@ int reiserfs_cut_from_item(struct reiser + "reiserquota cut_from_item(): freeing %u id=%u type=%c", + quota_cut_bytes, p_s_inode->i_uid, '?'); + #endif ++ DLIMIT_FREE_SPACE(p_s_inode, quota_cut_bytes); + DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes); + return n_ret_value; + } +@@ -2048,6 +2052,11 @@ int reiserfs_paste_into_item(struct reis + pathrelse(p_s_search_path); + return -EDQUOT; + } ++ if (DLIMIT_ALLOC_SPACE(inode, n_pasted_size)) { ++ DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size); ++ pathrelse(p_s_search_path); ++ return -ENOSPC; ++ } + init_tb_struct(th, &s_paste_balance, th->t_super, p_s_search_path, + n_pasted_size); + #ifdef DISPLACE_NEW_PACKING_LOCALITIES +@@ -2100,6 +2109,7 @@ int reiserfs_paste_into_item(struct reis + n_pasted_size, inode->i_uid, + key2type(&(p_s_key->on_disk_key))); + #endif ++ DLIMIT_FREE_SPACE(inode, n_pasted_size); + DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size); + return retval; + } +@@ -2137,6 +2147,11 @@ int reiserfs_insert_item(struct reiserfs + pathrelse(p_s_path); + return -EDQUOT; + } ++ if (DLIMIT_ALLOC_SPACE(inode, quota_bytes)) { ++ DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes); ++ pathrelse(p_s_path); ++ return -ENOSPC; ++ } + } + init_tb_struct(th, &s_ins_balance, th->t_super, p_s_path, + IH_SIZE + ih_item_len(p_s_ih)); +@@ -2184,7 +2199,9 @@ int reiserfs_insert_item(struct reiserfs + "reiserquota insert_item(): freeing %u id=%u type=%c", + quota_bytes, inode->i_uid, head2type(p_s_ih)); + #endif +- if (inode) ++ if (inode) { ++ DLIMIT_FREE_SPACE(inode, quota_bytes); + DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes); ++ } + return retval; + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/super.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/reiserfs/super.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/super.c +@@ -888,6 +888,9 @@ static int reiserfs_parse_options(struct + {"user_xattr",.setmask = 1 << REISERFS_UNSUPPORTED_OPT}, + {"nouser_xattr",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT}, + #endif ++#ifndef CONFIG_INOXID_NONE ++ {"tagxid",.setmask = 1 << REISERFS_TAGXID}, ++#endif + #ifdef CONFIG_REISERFS_FS_POSIX_ACL + {"acl",.setmask = 1 << REISERFS_POSIXACL}, + {"noacl",.clrmask = 1 << REISERFS_POSIXACL}, +@@ -1162,6 +1165,12 @@ static int reiserfs_remount(struct super + return -EINVAL; + } + ++ if ((mount_options & (1 << REISERFS_TAGXID)) && ++ !(s->s_flags & MS_TAGXID)) { ++ reiserfs_warning(s, "reiserfs: tagxid not permitted on remount."); ++ return -EINVAL; ++ } ++ + handle_attrs(s); + + /* Add options that are safe here */ +@@ -1737,6 +1746,10 @@ static int reiserfs_fill_super(struct su + goto error; + } + ++ /* map mount option tagxid */ ++ if (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_TAGXID)) ++ s->s_flags |= MS_TAGXID; ++ + rs = SB_DISK_SUPER_BLOCK(s); + /* Let's do basic sanity check to verify that underlying device is not + smaller than the filesystem. If the check fails then abort and scream, +Index: vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/xattr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/reiserfs/xattr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/reiserfs/xattr.c +@@ -34,6 +34,7 @@ + #include <linux/namei.h> + #include <linux/errno.h> + #include <linux/fs.h> ++#include <linux/mount.h> + #include <linux/file.h> + #include <linux/pagemap.h> + #include <linux/xattr.h> +@@ -835,7 +836,7 @@ int reiserfs_delete_xattrs(struct inode + if (dir->d_inode->i_nlink <= 2) { + root = get_xa_root(inode->i_sb); + reiserfs_write_lock_xattrs(inode->i_sb); +- err = vfs_rmdir(root->d_inode, dir); ++ err = vfs_rmdir(root->d_inode, dir, NULL); + reiserfs_write_unlock_xattrs(inode->i_sb); + dput(root); + } else { +@@ -1352,7 +1353,7 @@ __reiserfs_permission(struct inode *inod + /* + * Nobody gets write access to a read-only fs. + */ +- if (IS_RDONLY(inode) && ++ if ((IS_RDONLY(inode) || (nd && MNT_IS_RDONLY(nd->mnt))) && + (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode))) + return -EROFS; + +Index: vserver-sources-2.0.2_2.6.15.4/fs/stat.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/stat.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/stat.c +@@ -27,6 +27,7 @@ void generic_fillattr(struct inode *inod + stat->nlink = inode->i_nlink; + stat->uid = inode->i_uid; + stat->gid = inode->i_gid; ++ stat->xid = inode->i_xid; + stat->rdev = inode->i_rdev; + stat->atime = inode->i_atime; + stat->mtime = inode->i_mtime; +Index: vserver-sources-2.0.2_2.6.15.4/fs/super.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/super.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/super.c +@@ -37,6 +37,8 @@ + #include <linux/writeback.h> /* for the emergency remount stuff */ + #include <linux/idr.h> + #include <linux/kobject.h> ++#include <linux/devpts_fs.h> ++#include <linux/proc_fs.h> + #include <asm/uaccess.h> + + +@@ -803,7 +805,7 @@ struct vfsmount * + do_kern_mount(const char *fstype, int flags, const char *name, void *data) + { + struct file_system_type *type = get_fs_type(fstype); +- struct super_block *sb = ERR_PTR(-ENOMEM); ++ struct super_block *sb; + struct vfsmount *mnt; + int error; + char *secdata = NULL; +@@ -811,6 +813,12 @@ do_kern_mount(const char *fstype, int fl + if (!type) + return ERR_PTR(-ENODEV); + ++ sb = ERR_PTR(-EPERM); ++ if ((type->fs_flags & FS_BINARY_MOUNTDATA) && ++ !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_BINARY_MOUNT)) ++ goto out; ++ ++ sb = ERR_PTR(-ENOMEM); + mnt = alloc_vfsmnt(name); + if (!mnt) + goto out; +@@ -832,6 +840,13 @@ do_kern_mount(const char *fstype, int fl + sb = type->get_sb(type, flags, name, data); + if (IS_ERR(sb)) + goto out_free_secdata; ++ ++ error = -EPERM; ++ if (!capable(CAP_SYS_ADMIN) && !sb->s_bdev && ++ (sb->s_magic != PROC_SUPER_MAGIC) && ++ (sb->s_magic != DEVPTS_SUPER_MAGIC)) ++ goto out_sb; ++ + error = security_sb_kern_mount(sb, secdata); + if (error) + goto out_sb; +Index: vserver-sources-2.0.2_2.6.15.4/fs/sysfs/mount.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/sysfs/mount.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/sysfs/mount.c +@@ -11,8 +11,6 @@ + + #include "sysfs.h" + +-/* Random magic number */ +-#define SYSFS_MAGIC 0x62656572 + + struct vfsmount *sysfs_mount; + struct super_block * sysfs_sb = NULL; +@@ -38,7 +36,7 @@ static int sysfs_fill_super(struct super + + sb->s_blocksize = PAGE_CACHE_SIZE; + sb->s_blocksize_bits = PAGE_CACHE_SHIFT; +- sb->s_magic = SYSFS_MAGIC; ++ sb->s_magic = SYSFS_SUPER_MAGIC; + sb->s_op = &sysfs_ops; + sb->s_time_gran = 1; + sysfs_sb = sb; +Index: vserver-sources-2.0.2_2.6.15.4/fs/xattr.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xattr.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xattr.c +@@ -17,6 +17,7 @@ + #include <linux/syscalls.h> + #include <linux/module.h> + #include <linux/fsnotify.h> ++#include <linux/mount.h> + #include <asm/uaccess.h> + + /* +@@ -24,7 +25,7 @@ + */ + static long + setxattr(struct dentry *d, char __user *name, void __user *value, +- size_t size, int flags) ++ size_t size, int flags, struct vfsmount *mnt) + { + int error; + void *kvalue = NULL; +@@ -51,6 +52,9 @@ setxattr(struct dentry *d, char __user * + } + } + ++ if (MNT_IS_RDONLY(mnt)) ++ return -EROFS; ++ + down(&d->d_inode->i_sem); + error = security_inode_setxattr(d, kname, kvalue, size, flags); + if (error) +@@ -88,7 +92,7 @@ sys_setxattr(char __user *path, char __u + error = user_path_walk(path, &nd); + if (error) + return error; +- error = setxattr(nd.dentry, name, value, size, flags); ++ error = setxattr(nd.dentry, name, value, size, flags, nd.mnt); + path_release(&nd); + return error; + } +@@ -103,7 +107,7 @@ sys_lsetxattr(char __user *path, char __ + error = user_path_walk_link(path, &nd); + if (error) + return error; +- error = setxattr(nd.dentry, name, value, size, flags); ++ error = setxattr(nd.dentry, name, value, size, flags, nd.mnt); + path_release(&nd); + return error; + } +@@ -118,7 +122,7 @@ sys_fsetxattr(int fd, char __user *name, + f = fget(fd); + if (!f) + return error; +- error = setxattr(f->f_dentry, name, value, size, flags); ++ error = setxattr(f->f_dentry, name, value, size, flags, f->f_vfsmnt); + fput(f); + return error; + } +@@ -307,7 +311,7 @@ sys_flistxattr(int fd, char __user *list + * Extended attribute REMOVE operations + */ + static long +-removexattr(struct dentry *d, char __user *name) ++removexattr(struct dentry *d, char __user *name, struct vfsmount *mnt) + { + int error; + char kname[XATTR_NAME_MAX + 1]; +@@ -318,6 +322,9 @@ removexattr(struct dentry *d, char __use + if (error < 0) + return error; + ++ if (MNT_IS_RDONLY(mnt)) ++ return -EROFS; ++ + error = -EOPNOTSUPP; + if (d->d_inode->i_op && d->d_inode->i_op->removexattr) { + error = security_inode_removexattr(d, kname); +@@ -342,7 +349,7 @@ sys_removexattr(char __user *path, char + error = user_path_walk(path, &nd); + if (error) + return error; +- error = removexattr(nd.dentry, name); ++ error = removexattr(nd.dentry, name, nd.mnt); + path_release(&nd); + return error; + } +@@ -356,7 +363,7 @@ sys_lremovexattr(char __user *path, char + error = user_path_walk_link(path, &nd); + if (error) + return error; +- error = removexattr(nd.dentry, name); ++ error = removexattr(nd.dentry, name, nd.mnt); + path_release(&nd); + return error; + } +@@ -370,7 +377,7 @@ sys_fremovexattr(int fd, char __user *na + f = fget(fd); + if (!f) + return error; +- error = removexattr(f->f_dentry, name); ++ error = removexattr(f->f_dentry, name, f->f_vfsmnt); + fput(f); + return error; + } +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_ioctl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/linux-2.6/xfs_ioctl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_ioctl.c +@@ -1098,6 +1098,8 @@ xfs_ioc_fsgeometry( + #define LINUX_XFLAG_APPEND 0x00000020 /* writes to file may only append */ + #define LINUX_XFLAG_NODUMP 0x00000040 /* do not dump file */ + #define LINUX_XFLAG_NOATIME 0x00000080 /* do not update atime */ ++#define LINUX_XFLAG_BARRIER 0x04000000 /* chroot() barrier */ ++#define LINUX_XFLAG_IUNLINK 0x08000000 /* immutable unlink */ + + STATIC unsigned int + xfs_merge_ioc_xflags( +@@ -1138,6 +1140,10 @@ xfs_di2lxflags( + + if (di_flags & XFS_DIFLAG_IMMUTABLE) + flags |= LINUX_XFLAG_IMMUTABLE; ++ if (di_flags & XFS_DIFLAG_IUNLINK) ++ flags |= LINUX_XFLAG_IUNLINK; ++ if (di_flags & XFS_DIFLAG_BARRIER) ++ flags |= LINUX_XFLAG_BARRIER; + if (di_flags & XFS_DIFLAG_APPEND) + flags |= LINUX_XFLAG_APPEND; + if (di_flags & XFS_DIFLAG_SYNC) +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_iops.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/linux-2.6/xfs_iops.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_iops.c +@@ -53,6 +53,7 @@ + + #include <linux/xattr.h> + #include <linux/namei.h> ++#include <linux/vserver/xid.h> + + /* + * Change the requested timestamp in the given inode. +@@ -354,6 +355,7 @@ linvfs_lookup( + d_add(dentry, NULL); + return NULL; + } ++ vx_propagate_xid(nd, LINVFS_GET_IP(cvp)); + + return d_splice_alias(LINVFS_GET_IP(cvp), dentry); + } +@@ -587,6 +589,41 @@ linvfs_getattr( + } + + STATIC int ++linvfs_sync_flags(struct inode *inode) ++{ ++ unsigned int oldflags, newflags; ++ vattr_t vattr; ++ int flags = 0; ++ int error; ++ vnode_t *vp = LINVFS_GET_VP(inode); ++ ++ memset(&vattr, 0, sizeof(vattr_t)); ++ ++ vattr.va_mask = XFS_AT_XFLAGS; ++ VOP_GETATTR(vp, &vattr, 0, NULL, error); ++ if (error) ++ return error; ++ oldflags = vattr.va_xflags; ++ newflags = oldflags & ~(XFS_XFLAG_IMMUTABLE | ++ XFS_XFLAG_IUNLINK | XFS_XFLAG_BARRIER); ++ ++ if (IS_IMMUTABLE(inode)) ++ newflags |= XFS_XFLAG_IMMUTABLE; ++ if (IS_IUNLINK(inode)) ++ newflags |= XFS_XFLAG_IUNLINK; ++ if (IS_BARRIER(inode)) ++ newflags |= XFS_XFLAG_BARRIER; ++ ++ if (oldflags ^ newflags) { ++ vattr.va_xflags = newflags; ++ vattr.va_mask |= XFS_AT_XFLAGS; ++ VOP_SETATTR(vp, &vattr, flags, NULL, error); ++ } ++ vn_revalidate(vp); ++ return error; ++} ++ ++STATIC int + linvfs_setattr( + struct dentry *dentry, + struct iattr *attr) +@@ -598,6 +635,10 @@ linvfs_setattr( + int flags = 0; + int error; + ++ error = inode_change_ok(inode, attr); ++ if (error) ++ return error; ++ + memset(&vattr, 0, sizeof(vattr_t)); + if (ia_valid & ATTR_UID) { + vattr.va_mask |= XFS_AT_UID; +@@ -607,6 +648,10 @@ linvfs_setattr( + vattr.va_mask |= XFS_AT_GID; + vattr.va_gid = attr->ia_gid; + } ++ if ((ia_valid & ATTR_XID) && IS_TAGXID(inode)) { ++ vattr.va_mask |= XFS_AT_XID; ++ vattr.va_xid = attr->ia_xid; ++ } + if (ia_valid & ATTR_SIZE) { + vattr.va_mask |= XFS_AT_SIZE; + vattr.va_size = attr->ia_size; +@@ -764,6 +809,7 @@ struct inode_operations linvfs_file_inod + .getxattr = linvfs_getxattr, + .listxattr = linvfs_listxattr, + .removexattr = linvfs_removexattr, ++ .sync_flags = linvfs_sync_flags, + }; + + struct inode_operations linvfs_dir_inode_operations = { +@@ -783,6 +829,7 @@ struct inode_operations linvfs_dir_inode + .getxattr = linvfs_getxattr, + .listxattr = linvfs_listxattr, + .removexattr = linvfs_removexattr, ++ .sync_flags = linvfs_sync_flags, + }; + + struct inode_operations linvfs_symlink_inode_operations = { +@@ -796,4 +843,5 @@ struct inode_operations linvfs_symlink_i + .getxattr = linvfs_getxattr, + .listxattr = linvfs_listxattr, + .removexattr = linvfs_removexattr, ++ .sync_flags = linvfs_sync_flags, + }; +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_linux.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/linux-2.6/xfs_linux.h ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_linux.h +@@ -137,6 +137,7 @@ static inline void set_buffer_unwritten_ + #define current_pid() (current->pid) + #define current_fsuid(cred) (current->fsuid) + #define current_fsgid(cred) (current->fsgid) ++#define current_fsxid(cred,vp) (vx_current_fsxid(LINVFS_GET_IP(vp)->i_sb)) + + #define NBPP PAGE_SIZE + #define DPPSHFT (PAGE_SHIFT - 9) +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_super.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/linux-2.6/xfs_super.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_super.c +@@ -161,6 +161,7 @@ xfs_revalidate_inode( + inode->i_nlink = ip->i_d.di_nlink; + inode->i_uid = ip->i_d.di_uid; + inode->i_gid = ip->i_d.di_gid; ++ inode->i_xid = ip->i_d.di_xid; + + switch (inode->i_mode & S_IFMT) { + case S_IFBLK: +@@ -189,6 +190,14 @@ xfs_revalidate_inode( + inode->i_flags |= S_IMMUTABLE; + else + inode->i_flags &= ~S_IMMUTABLE; ++ if (ip->i_d.di_flags & XFS_DIFLAG_IUNLINK) ++ inode->i_flags |= S_IUNLINK; ++ else ++ inode->i_flags &= ~S_IUNLINK; ++ if (ip->i_d.di_flags & XFS_DIFLAG_BARRIER) ++ inode->i_flags |= S_BARRIER; ++ else ++ inode->i_flags &= ~S_BARRIER; + if (ip->i_d.di_flags & XFS_DIFLAG_APPEND) + inode->i_flags |= S_APPEND; + else +@@ -726,6 +735,12 @@ linvfs_remount( + int error; + + VFS_PARSEARGS(vfsp, options, args, 1, error); ++ if ((args->flags2 & XFSMNT2_TAGXID) && ++ !(sb->s_flags & MS_TAGXID)) { ++ printk("XFS: %s: tagxid not permitted on remount.\n", ++ sb->s_id); ++ error = EINVAL; ++ } + if (!error) + VFS_MNTUPDATE(vfsp, flags, args, error); + kmem_free(args, sizeof(*args)); +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_sysctl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/linux-2.6/xfs_sysctl.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_sysctl.c +@@ -58,74 +58,74 @@ xfs_stats_clear_proc_handler( + STATIC ctl_table xfs_table[] = { + {XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.restrict_chown.min, &xfs_params.restrict_chown.max}, + + {XFS_SGID_INHERIT, "irix_sgid_inherit", &xfs_params.sgid_inherit.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.sgid_inherit.min, &xfs_params.sgid_inherit.max}, + + {XFS_SYMLINK_MODE, "irix_symlink_mode", &xfs_params.symlink_mode.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.symlink_mode.min, &xfs_params.symlink_mode.max}, + + {XFS_PANIC_MASK, "panic_mask", &xfs_params.panic_mask.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.panic_mask.min, &xfs_params.panic_mask.max}, + + {XFS_ERRLEVEL, "error_level", &xfs_params.error_level.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.error_level.min, &xfs_params.error_level.max}, + + {XFS_SYNCD_TIMER, "xfssyncd_centisecs", &xfs_params.syncd_timer.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.syncd_timer.min, &xfs_params.syncd_timer.max}, + + {XFS_INHERIT_SYNC, "inherit_sync", &xfs_params.inherit_sync.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.inherit_sync.min, &xfs_params.inherit_sync.max}, + + {XFS_INHERIT_NODUMP, "inherit_nodump", &xfs_params.inherit_nodump.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.inherit_nodump.min, &xfs_params.inherit_nodump.max}, + + {XFS_INHERIT_NOATIME, "inherit_noatime", &xfs_params.inherit_noatim.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.inherit_noatim.min, &xfs_params.inherit_noatim.max}, + + {XFS_BUF_TIMER, "xfsbufd_centisecs", &xfs_params.xfs_buf_timer.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.xfs_buf_timer.min, &xfs_params.xfs_buf_timer.max}, + + {XFS_BUF_AGE, "age_buffer_centisecs", &xfs_params.xfs_buf_age.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.xfs_buf_age.min, &xfs_params.xfs_buf_age.max}, + + {XFS_INHERIT_NOSYM, "inherit_nosymlinks", &xfs_params.inherit_nosym.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.inherit_nosym.min, &xfs_params.inherit_nosym.max}, + + {XFS_ROTORSTEP, "rotorstep", &xfs_params.rotorstep.val, + sizeof(int), 0644, NULL, &proc_dointvec_minmax, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.rotorstep.min, &xfs_params.rotorstep.max}, + + /* please keep this the last entry */ + #ifdef CONFIG_PROC_FS + {XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val, + sizeof(int), 0644, NULL, &xfs_stats_clear_proc_handler, +- &sysctl_intvec, NULL, ++ NULL, &sysctl_intvec, NULL, + &xfs_params.stats_clear.min, &xfs_params.stats_clear.max}, + #endif /* CONFIG_PROC_FS */ + +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_vnode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/linux-2.6/xfs_vnode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_vnode.c +@@ -103,6 +103,7 @@ vn_revalidate_core( + inode->i_nlink = vap->va_nlink; + inode->i_uid = vap->va_uid; + inode->i_gid = vap->va_gid; ++ inode->i_xid = vap->va_xid; + inode->i_blocks = vap->va_nblocks; + inode->i_mtime = vap->va_mtime; + inode->i_ctime = vap->va_ctime; +@@ -112,6 +113,14 @@ vn_revalidate_core( + inode->i_flags |= S_IMMUTABLE; + else + inode->i_flags &= ~S_IMMUTABLE; ++ if (vap->va_xflags & XFS_XFLAG_IUNLINK) ++ inode->i_flags |= S_IUNLINK; ++ else ++ inode->i_flags &= ~S_IUNLINK; ++ if (vap->va_xflags & XFS_XFLAG_BARRIER) ++ inode->i_flags |= S_BARRIER; ++ else ++ inode->i_flags &= ~S_BARRIER; + if (vap->va_xflags & XFS_XFLAG_APPEND) + inode->i_flags |= S_APPEND; + else +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_vnode.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/linux-2.6/xfs_vnode.h ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/linux-2.6/xfs_vnode.h +@@ -386,6 +386,7 @@ typedef struct vattr { + xfs_nlink_t va_nlink; /* number of references to file */ + uid_t va_uid; /* owner user id */ + gid_t va_gid; /* owner group id */ ++ xid_t va_xid; /* owner group id */ + xfs_ino_t va_nodeid; /* file id */ + xfs_off_t va_size; /* file size in bytes */ + u_long va_blocksize; /* blocksize preferred for i/o */ +@@ -434,13 +435,15 @@ typedef struct vattr { + #define XFS_AT_PROJID 0x04000000 + #define XFS_AT_SIZE_NOPERM 0x08000000 + #define XFS_AT_GENCOUNT 0x10000000 ++#define XFS_AT_XID 0x20000000 + + #define XFS_AT_ALL (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\ + XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\ + XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\ + XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\ + XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\ +- XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT) ++ XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT\ ++ XFS_AT_XID) + + #define XFS_AT_STAT (XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\ + XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\ +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_clnt.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/xfs_clnt.h ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_clnt.h +@@ -100,5 +100,7 @@ struct xfs_mount_args { + */ + #define XFSMNT2_COMPAT_IOSIZE 0x00000001 /* don't report large preferred + * I/O size in stat(2) */ ++#define XFSMNT2_TAGXID 0x80000000 /* context xid tagging */ ++ + + #endif /* __XFS_CLNT_H__ */ +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_dinode.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/xfs_dinode.h ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_dinode.h +@@ -53,7 +53,8 @@ typedef struct xfs_dinode_core + __uint32_t di_gid; /* owner's group id */ + __uint32_t di_nlink; /* number of links to file */ + __uint16_t di_projid; /* owner's project id */ +- __uint8_t di_pad[8]; /* unused, zeroed space */ ++ __uint16_t di_xid; /* vserver context id */ ++ __uint8_t di_pad[6]; /* unused, zeroed space */ + __uint16_t di_flushiter; /* incremented on flush */ + xfs_timestamp_t di_atime; /* time last accessed */ + xfs_timestamp_t di_mtime; /* time last modified */ +@@ -248,6 +249,9 @@ typedef enum xfs_dinode_fmt + #define XFS_DIFLAG_RTINHERIT_BIT 8 /* create with realtime bit set */ + #define XFS_DIFLAG_PROJINHERIT_BIT 9 /* create with parents projid */ + #define XFS_DIFLAG_NOSYMLINKS_BIT 10 /* disallow symlink creation */ ++#define XFS_DIFLAG_BARRIER_BIT 12 /* chroot() barrier */ ++#define XFS_DIFLAG_IUNLINK_BIT 13 /* immutable unlink */ ++ + #define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT) + #define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT) + #define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT) +@@ -259,11 +263,15 @@ typedef enum xfs_dinode_fmt + #define XFS_DIFLAG_RTINHERIT (1 << XFS_DIFLAG_RTINHERIT_BIT) + #define XFS_DIFLAG_PROJINHERIT (1 << XFS_DIFLAG_PROJINHERIT_BIT) + #define XFS_DIFLAG_NOSYMLINKS (1 << XFS_DIFLAG_NOSYMLINKS_BIT) ++#define XFS_DIFLAG_BARRIER (1 << XFS_DIFLAG_BARRIER_BIT) ++#define XFS_DIFLAG_IUNLINK (1 << XFS_DIFLAG_IUNLINK_BIT) ++ + + #define XFS_DIFLAG_ANY \ + (XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \ + XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \ + XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \ +- XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS) ++ XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | \ ++ XFS_DIFLAG_BARRIER | XFS_DIFLAG_IUNLINK) + + #endif /* __XFS_DINODE_H__ */ +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_fs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/xfs_fs.h ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_fs.h +@@ -65,6 +65,8 @@ struct fsxattr { + #define XFS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */ + #define XFS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */ + #define XFS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */ ++#define XFS_XFLAG_BARRIER 0x00004000 /* chroot() barrier */ ++#define XFS_XFLAG_IUNLINK 0x00008000 /* immutable unlink */ + #define XFS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */ + + /* +@@ -293,7 +295,8 @@ typedef struct xfs_bstat { + __s32 bs_extents; /* number of extents */ + __u32 bs_gen; /* generation count */ + __u16 bs_projid; /* project id */ +- unsigned char bs_pad[14]; /* pad space, unused */ ++ __u16 bs_xid; /* context id */ ++ unsigned char bs_pad[12]; /* pad space, unused */ + __u32 bs_dmevmask; /* DMIG event mask */ + __u16 bs_dmstate; /* DMIG state info */ + __u16 bs_aextents; /* attribute number of extents */ +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_inode.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/xfs_inode.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_inode.c +@@ -52,6 +52,7 @@ + #include "xfs_mac.h" + #include "xfs_acl.h" + ++#include <linux/vserver/xid.h> + + kmem_zone_t *xfs_ifork_zone; + kmem_zone_t *xfs_inode_zone; +@@ -733,20 +734,35 @@ xfs_xlate_dinode_core( + xfs_dinode_core_t *buf_core = (xfs_dinode_core_t *)buf; + xfs_dinode_core_t *mem_core = (xfs_dinode_core_t *)dip; + xfs_arch_t arch = ARCH_CONVERT; ++ uint32_t uid = 0, gid = 0; ++ uint16_t xid = 0; + + ASSERT(dir); + ++ if (dir < 0) { ++ xid = mem_core->di_xid; ++ /* FIXME: supposed to use superblock flag */ ++ uid = XIDINO_UID(1, mem_core->di_uid, xid); ++ gid = XIDINO_GID(1, mem_core->di_gid, xid); ++ xid = XIDINO_XID(1, xid); ++ } ++ + INT_XLATE(buf_core->di_magic, mem_core->di_magic, dir, arch); + INT_XLATE(buf_core->di_mode, mem_core->di_mode, dir, arch); + INT_XLATE(buf_core->di_version, mem_core->di_version, dir, arch); + INT_XLATE(buf_core->di_format, mem_core->di_format, dir, arch); + INT_XLATE(buf_core->di_onlink, mem_core->di_onlink, dir, arch); +- INT_XLATE(buf_core->di_uid, mem_core->di_uid, dir, arch); +- INT_XLATE(buf_core->di_gid, mem_core->di_gid, dir, arch); ++ INT_XLATE(buf_core->di_uid, uid, dir, arch); ++ INT_XLATE(buf_core->di_gid, gid, dir, arch); ++ INT_XLATE(buf_core->di_xid, xid, dir, arch); + INT_XLATE(buf_core->di_nlink, mem_core->di_nlink, dir, arch); + INT_XLATE(buf_core->di_projid, mem_core->di_projid, dir, arch); + + if (dir > 0) { ++ /* FIXME: supposed to use superblock flag */ ++ mem_core->di_uid = INOXID_UID(1, uid, gid); ++ mem_core->di_gid = INOXID_GID(1, uid, gid); ++ mem_core->di_xid = INOXID_XID(1, uid, gid, xid); + memcpy(mem_core->di_pad, buf_core->di_pad, + sizeof(buf_core->di_pad)); + } else { +@@ -795,6 +811,10 @@ _xfs_dic2xflags( + flags |= XFS_XFLAG_PREALLOC; + if (di_flags & XFS_DIFLAG_IMMUTABLE) + flags |= XFS_XFLAG_IMMUTABLE; ++ if (di_flags & XFS_DIFLAG_IUNLINK) ++ flags |= XFS_XFLAG_IUNLINK; ++ if (di_flags & XFS_DIFLAG_BARRIER) ++ flags |= XFS_XFLAG_BARRIER; + if (di_flags & XFS_DIFLAG_APPEND) + flags |= XFS_XFLAG_APPEND; + if (di_flags & XFS_DIFLAG_SYNC) +@@ -1120,6 +1140,7 @@ xfs_ialloc( + ASSERT(ip->i_d.di_nlink == nlink); + ip->i_d.di_uid = current_fsuid(cr); + ip->i_d.di_gid = current_fsgid(cr); ++ ip->i_d.di_xid = current_fsxid(cr, vp); + ip->i_d.di_projid = prid; + memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad)); + +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_itable.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/xfs_itable.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_itable.c +@@ -83,6 +83,7 @@ xfs_bulkstat_one_iget( + buf->bs_mode = dic->di_mode; + buf->bs_uid = dic->di_uid; + buf->bs_gid = dic->di_gid; ++ buf->bs_xid = dic->di_xid; + buf->bs_size = dic->di_size; + buf->bs_atime.tv_sec = dic->di_atime.t_sec; + buf->bs_atime.tv_nsec = dic->di_atime.t_nsec; +@@ -158,6 +159,7 @@ xfs_bulkstat_one_dinode( + buf->bs_mode = INT_GET(dic->di_mode, ARCH_CONVERT); + buf->bs_uid = INT_GET(dic->di_uid, ARCH_CONVERT); + buf->bs_gid = INT_GET(dic->di_gid, ARCH_CONVERT); ++ buf->bs_xid = INT_GET(dic->di_xid, ARCH_CONVERT); + buf->bs_size = INT_GET(dic->di_size, ARCH_CONVERT); + buf->bs_atime.tv_sec = INT_GET(dic->di_atime.t_sec, ARCH_CONVERT); + buf->bs_atime.tv_nsec = INT_GET(dic->di_atime.t_nsec, ARCH_CONVERT); +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_mount.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/xfs_mount.h ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_mount.h +@@ -413,6 +413,7 @@ typedef struct xfs_mount { + #define XFS_MOUNT_COMPAT_IOSIZE (1ULL << 22) /* don't report large preferred + * I/O size in stat() */ + ++#define XFS_MOUNT_TAGXID (1ULL << 31) /* context xid tagging */ + + /* + * Default minimum read and write sizes. +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_vfsops.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/xfs_vfsops.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_vfsops.c +@@ -295,6 +295,8 @@ xfs_start_flags( + + if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE) + mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE; ++ if (ap->flags2 & XFSMNT2_TAGXID) ++ mp->m_flags |= XFS_MOUNT_TAGXID; + + /* + * no recovery flag requires a read-only mount +@@ -386,6 +388,8 @@ xfs_finish_flags( + mp->m_flags &= ~XFS_MOUNT_COMPAT_ATTR; + } + ++ if (ap->flags2 & XFSMNT2_TAGXID) ++ vfs->vfs_super->s_flags |= MS_TAGXID; + return 0; + } + +@@ -1643,6 +1647,7 @@ xfs_vget( + * in stat(). */ + #define MNTOPT_ATTR2 "attr2" /* do use attr2 attribute format */ + #define MNTOPT_NOATTR2 "noattr2" /* do not use attr2 attribute format */ ++#define MNTOPT_TAGXID "tagxid" /* context xid tagging for inodes */ + + STATIC unsigned long + suffix_strtoul(const char *cp, char **endp, unsigned int base) +@@ -1818,6 +1823,10 @@ xfs_parseargs( + args->flags &= ~XFSMNT_COMPAT_ATTR; + } else if (!strcmp(this_char, MNTOPT_NOATTR2)) { + args->flags |= XFSMNT_COMPAT_ATTR; ++#ifndef CONFIG_INOXID_NONE ++ } else if (!strcmp(this_char, MNTOPT_TAGXID)) { ++ args->flags2 |= XFSMNT2_TAGXID; ++#endif + } else if (!strcmp(this_char, "osyncisdsync")) { + /* no-op, this is now the default */ + printk("XFS: osyncisdsync is now the default, option is deprecated.\n"); +Index: vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_vnodeops.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/fs/xfs/xfs_vnodeops.c ++++ vserver-sources-2.0.2_2.6.15.4/fs/xfs/xfs_vnodeops.c +@@ -151,6 +151,7 @@ xfs_getattr( + vap->va_mode = ip->i_d.di_mode; + vap->va_uid = ip->i_d.di_uid; + vap->va_gid = ip->i_d.di_gid; ++ vap->va_xid = ip->i_d.di_xid; + vap->va_projid = ip->i_d.di_projid; + + /* +@@ -252,6 +253,7 @@ xfs_setattr( + uint commit_flags=0; + uid_t uid=0, iuid=0; + gid_t gid=0, igid=0; ++ xid_t xid=0, ixid=0; + int timeflags = 0; + vnode_t *vp; + xfs_prid_t projid=0, iprojid=0; +@@ -308,6 +310,7 @@ xfs_setattr( + (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID))) { + uint qflags = 0; + ++ /* FIXME: handle xid? */ + if ((mask & XFS_AT_UID) && XFS_IS_UQUOTA_ON(mp)) { + uid = vap->va_uid; + qflags |= XFS_QMOPT_UQUOTA; +@@ -388,6 +391,8 @@ xfs_setattr( + if (mask & + (XFS_AT_MODE|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_UID| + XFS_AT_GID|XFS_AT_PROJID)) { ++ /* FIXME: handle xid? */ ++ + /* + * CAP_FOWNER overrides the following restrictions: + * +@@ -436,7 +441,7 @@ xfs_setattr( + * and can change the group id only to a group of which he + * or she is a member. + */ +- if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) { ++ if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_XID|XFS_AT_PROJID)) { + /* + * These IDs could have changed since we last looked at them. + * But, we're assured that if the ownership did change +@@ -444,10 +449,12 @@ xfs_setattr( + * would have changed also. + */ + iuid = ip->i_d.di_uid; +- iprojid = ip->i_d.di_projid; + igid = ip->i_d.di_gid; +- gid = (mask & XFS_AT_GID) ? vap->va_gid : igid; ++ ixid = ip->i_d.di_xid; ++ iprojid = ip->i_d.di_projid; + uid = (mask & XFS_AT_UID) ? vap->va_uid : iuid; ++ gid = (mask & XFS_AT_GID) ? vap->va_gid : igid; ++ xid = (mask & XFS_AT_XID) ? vap->va_xid : ixid; + projid = (mask & XFS_AT_PROJID) ? (xfs_prid_t)vap->va_projid : + iprojid; + +@@ -475,6 +482,7 @@ xfs_setattr( + if ((XFS_IS_UQUOTA_ON(mp) && iuid != uid) || + (XFS_IS_PQUOTA_ON(mp) && iprojid != projid) || + (XFS_IS_GQUOTA_ON(mp) && igid != gid)) { ++ /* FIXME: handle xid? */ + ASSERT(tp); + code = XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, udqp, gdqp, + capable(CAP_FOWNER) ? +@@ -709,7 +717,7 @@ xfs_setattr( + * and can change the group id only to a group of which he + * or she is a member. + */ +- if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) { ++ if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_XID|XFS_AT_PROJID)) { + /* + * CAP_FSETID overrides the following restrictions: + * +@@ -725,6 +733,12 @@ xfs_setattr( + * Change the ownerships and register quota modifications + * in the transaction. + */ ++ if (ixid != xid) { ++ if (XFS_IS_GQUOTA_ON(mp)) { ++ /* FIXME: handle xid quota? */ ++ } ++ ip->i_d.di_xid = xid; ++ } + if (iuid != uid) { + if (XFS_IS_UQUOTA_ON(mp)) { + ASSERT(mask & XFS_AT_UID); +@@ -805,6 +819,10 @@ xfs_setattr( + di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC); + if (vap->va_xflags & XFS_XFLAG_IMMUTABLE) + di_flags |= XFS_DIFLAG_IMMUTABLE; ++ if (vap->va_xflags & XFS_XFLAG_IUNLINK) ++ di_flags |= XFS_DIFLAG_IUNLINK; ++ if (vap->va_xflags & XFS_XFLAG_BARRIER) ++ di_flags |= XFS_DIFLAG_BARRIER; + if (vap->va_xflags & XFS_XFLAG_APPEND) + di_flags |= XFS_DIFLAG_APPEND; + if (vap->va_xflags & XFS_XFLAG_SYNC) +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-arm/tlb.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-arm/tlb.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-arm/tlb.h +@@ -20,6 +20,7 @@ + #include <asm/cacheflush.h> + #include <asm/tlbflush.h> + #include <asm/pgalloc.h> ++#include <linux/vs_memory.h> + + /* + * TLB handling. This allows us to remove pages from the page +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-arm26/tlb.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-arm26/tlb.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-arm26/tlb.h +@@ -3,6 +3,7 @@ + + #include <asm/pgalloc.h> + #include <asm/tlbflush.h> ++#include <linux/vs_memory.h> + + /* + * TLB handling. This allows us to remove pages from the page +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-arm26/unistd.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-arm26/unistd.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-arm26/unistd.h +@@ -304,6 +304,8 @@ + #define __NR_mq_getsetattr (__NR_SYSCALL_BASE+279) + #define __NR_waitid (__NR_SYSCALL_BASE+280) + ++#define __NR_vserver (__NR_SYSCALL_BASE+313) ++ + /* + * The following SWIs are ARM private. FIXME - make appropriate for arm26 + */ +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-generic/tlb.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-generic/tlb.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-generic/tlb.h +@@ -15,6 +15,7 @@ + + #include <linux/config.h> + #include <linux/swap.h> ++#include <linux/vs_memory.h> + #include <asm/pgalloc.h> + #include <asm/tlbflush.h> + +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-i386/elf.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-i386/elf.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-i386/elf.h +@@ -71,7 +71,7 @@ typedef struct user_fxsr_struct elf_fpxr + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +-#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) ++#define ELF_ET_DYN_BASE ((TASK_UNMAPPED_BASE) * 2) + + /* regs is struct pt_regs, pr_reg is elf_gregset_t (which is + now struct_user_regs, they are different) */ +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-i386/page.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-i386/page.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-i386/page.h +@@ -109,19 +109,27 @@ extern int page_is_ram(unsigned long pag + + #endif /* __ASSEMBLY__ */ + +-#ifdef __ASSEMBLY__ ++#if defined(CONFIG_SPLIT_3GB) + #define __PAGE_OFFSET (0xC0000000) +-#define __PHYSICAL_START CONFIG_PHYSICAL_START +-#else +-#define __PAGE_OFFSET (0xC0000000UL) +-#define __PHYSICAL_START ((unsigned long)CONFIG_PHYSICAL_START) ++#elif defined(CONFIG_SPLIT_25GB) ++#define __PAGE_OFFSET (0xA0000000) ++#elif defined(CONFIG_SPLIT_2GB) ++#define __PAGE_OFFSET (0x80000000) ++#elif defined(CONFIG_SPLIT_15GB) ++#define __PAGE_OFFSET (0x60000000) ++#elif defined(CONFIG_SPLIT_1GB) ++#define __PAGE_OFFSET (0x40000000) + #endif ++ ++#define __PHYSICAL_START CONFIG_PHYSICAL_START + #define __KERNEL_START (__PAGE_OFFSET + __PHYSICAL_START) ++#define __MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE) + + + #define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET) ++#define PHYSICAL_START ((unsigned long)__PHYSICAL_START) + #define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE) +-#define MAXMEM (-__PAGE_OFFSET-__VMALLOC_RESERVE) ++#define MAXMEM ((unsigned long)__MAXMEM) + #define __pa(x) ((unsigned long)(x)-PAGE_OFFSET) + #define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET)) + #define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-i386/processor.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-i386/processor.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-i386/processor.h +@@ -312,9 +312,10 @@ extern unsigned int mca_pentium_flag; + extern int bootloader_type; + + /* +- * User space process size: 3GB (default). ++ * User space process size: (3GB default). + */ +-#define TASK_SIZE (PAGE_OFFSET) ++#define __TASK_SIZE (__PAGE_OFFSET) ++#define TASK_SIZE ((unsigned long)__TASK_SIZE) + + /* This decides where the kernel will search for a free chunk of vm + * space during mmap's. +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-ia64/tlb.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-ia64/tlb.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-ia64/tlb.h +@@ -41,6 +41,7 @@ + #include <linux/mm.h> + #include <linux/pagemap.h> + #include <linux/swap.h> ++#include <linux/vs_memory.h> + + #include <asm/pgalloc.h> + #include <asm/processor.h> +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-powerpc/unistd.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-powerpc/unistd.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-powerpc/unistd.h +@@ -275,7 +275,7 @@ + #endif + #define __NR_rtas 255 + #define __NR_sys_debug_setcontext 256 +-/* Number 257 is reserved for vserver */ ++#define __NR_vserver 257 + /* 258 currently unused */ + #define __NR_mbind 259 + #define __NR_get_mempolicy 260 +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-s390/unistd.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-s390/unistd.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-s390/unistd.h +@@ -255,7 +255,7 @@ + #define __NR_clock_gettime (__NR_timer_create+6) + #define __NR_clock_getres (__NR_timer_create+7) + #define __NR_clock_nanosleep (__NR_timer_create+8) +-/* Number 263 is reserved for vserver */ ++#define __NR_vserver 263 + #define __NR_fadvise64_64 264 + #define __NR_statfs64 265 + #define __NR_fstatfs64 266 +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-sparc/unistd.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-sparc/unistd.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-sparc/unistd.h +@@ -283,7 +283,7 @@ + #define __NR_timer_getoverrun 264 + #define __NR_timer_delete 265 + #define __NR_timer_create 266 +-/* #define __NR_vserver 267 Reserved for VSERVER */ ++#define __NR_vserver 267 + #define __NR_io_setup 268 + #define __NR_io_destroy 269 + #define __NR_io_submit 270 +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-sparc64/tlb.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-sparc64/tlb.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-sparc64/tlb.h +@@ -3,6 +3,7 @@ + + #include <linux/config.h> + #include <linux/swap.h> ++#include <linux/vs_memory.h> + #include <asm/pgalloc.h> + #include <asm/tlbflush.h> + #include <asm/mmu_context.h> +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-sparc64/unistd.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-sparc64/unistd.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-sparc64/unistd.h +@@ -285,7 +285,7 @@ + #define __NR_timer_getoverrun 264 + #define __NR_timer_delete 265 + #define __NR_timer_create 266 +-/* #define __NR_vserver 267 Reserved for VSERVER */ ++#define __NR_vserver 267 + #define __NR_io_setup 268 + #define __NR_io_destroy 269 + #define __NR_io_submit 270 +Index: vserver-sources-2.0.2_2.6.15.4/include/asm-x86_64/unistd.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/asm-x86_64/unistd.h ++++ vserver-sources-2.0.2_2.6.15.4/include/asm-x86_64/unistd.h +@@ -532,7 +532,7 @@ __SYSCALL(__NR_tgkill, sys_tgkill) + #define __NR_utimes 235 + __SYSCALL(__NR_utimes, sys_utimes) + #define __NR_vserver 236 +-__SYSCALL(__NR_vserver, sys_ni_syscall) ++__SYSCALL(__NR_vserver, sys_vserver) + #define __NR_mbind 237 + __SYSCALL(__NR_mbind, sys_mbind) + #define __NR_set_mempolicy 238 +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/capability.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/capability.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/capability.h +@@ -234,6 +234,7 @@ typedef __u32 kernel_cap_t; + arbitrary SCSI commands */ + /* Allow setting encryption key on loopback filesystem */ + /* Allow setting zone reclaim policy */ ++/* Allow the selection of a security context */ + + #define CAP_SYS_ADMIN 21 + +@@ -287,6 +288,11 @@ typedef __u32 kernel_cap_t; + + #define CAP_AUDIT_CONTROL 30 + ++/* Allow context manipulations */ ++/* Allow changing context info on files */ ++ ++#define CAP_CONTEXT 31 ++ + #ifdef __KERNEL__ + /* + * Bounding set +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/devpts_fs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/devpts_fs.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/devpts_fs.h +@@ -30,5 +30,7 @@ static inline void devpts_pty_kill(int n + + #endif + ++#define DEVPTS_SUPER_MAGIC 0x00001cd1 ++ + + #endif /* _LINUX_DEVPTS_FS_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/ext2_fs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/ext2_fs.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/ext2_fs.h +@@ -192,10 +192,17 @@ struct ext2_group_desc + #define EXT2_NOTAIL_FL 0x00008000 /* file tail should not be merged */ + #define EXT2_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ + #define EXT2_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ ++#define EXT2_BARRIER_FL 0x04000000 /* Barrier for chroot() */ ++#define EXT2_IUNLINK_FL 0x08000000 /* Immutable unlink */ + #define EXT2_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ + ++#ifdef CONFIG_VSERVER_LEGACY ++#define EXT2_FL_USER_VISIBLE 0x0803DFFF /* User visible flags */ ++#define EXT2_FL_USER_MODIFIABLE 0x080380FF /* User modifiable flags */ ++#else + #define EXT2_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ + #define EXT2_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ ++#endif + + /* + * ioctl commands +@@ -240,7 +247,7 @@ struct ext2_inode { + struct { + __u8 l_i_frag; /* Fragment number */ + __u8 l_i_fsize; /* Fragment size */ +- __u16 i_pad1; ++ __u16 l_i_xid; /* LRU Context */ + __le16 l_i_uid_high; /* these 2 fields */ + __le16 l_i_gid_high; /* were reserved2[0] */ + __u32 l_i_reserved2; +@@ -272,6 +279,7 @@ struct ext2_inode { + #define i_gid_low i_gid + #define i_uid_high osd2.linux2.l_i_uid_high + #define i_gid_high osd2.linux2.l_i_gid_high ++#define i_raw_xid osd2.linux2.l_i_xid + #define i_reserved2 osd2.linux2.l_i_reserved2 + #endif + +@@ -313,8 +321,9 @@ struct ext2_inode { + #define EXT2_MOUNT_XATTR_USER 0x004000 /* Extended user attributes */ + #define EXT2_MOUNT_POSIX_ACL 0x008000 /* POSIX Access Control Lists */ + #define EXT2_MOUNT_XIP 0x010000 /* Execute in place */ +-#define EXT2_MOUNT_USRQUOTA 0x020000 /* user quota */ +-#define EXT2_MOUNT_GRPQUOTA 0x040000 /* group quota */ ++#define EXT2_MOUNT_USRQUOTA 0x020000 /* user quota */ ++#define EXT2_MOUNT_GRPQUOTA 0x040000 /* group quota */ ++#define EXT2_MOUNT_TAGXID (1<<24) /* Enable Context Tags */ + + + #define clear_opt(o, opt) o &= ~EXT2_MOUNT_##opt +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/ext3_fs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/ext3_fs.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/ext3_fs.h +@@ -185,10 +185,20 @@ struct ext3_group_desc + #define EXT3_NOTAIL_FL 0x00008000 /* file tail should not be merged */ + #define EXT3_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */ + #define EXT3_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ ++#define EXT3_BARRIER_FL 0x04000000 /* Barrier for chroot() */ ++#define EXT3_IUNLINK_FL 0x08000000 /* Immutable unlink */ + #define EXT3_RESERVED_FL 0x80000000 /* reserved for ext3 lib */ + ++#ifdef CONFIG_VSERVER_LEGACY ++#define EXT3_FL_USER_VISIBLE 0x0803DFFF /* User visible flags */ ++#define EXT3_FL_USER_MODIFIABLE 0x080380FF /* User modifiable flags */ ++#else + #define EXT3_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ + #define EXT3_FL_USER_MODIFIABLE 0x000380FF /* User modifiable flags */ ++#endif ++#ifdef CONFIG_VSERVER_LEGACY ++#define EXT3_IOC_SETXID FIOC_SETXIDJ ++#endif + + /* + * Inode dynamic state flags +@@ -287,7 +297,7 @@ struct ext3_inode { + struct { + __u8 l_i_frag; /* Fragment number */ + __u8 l_i_fsize; /* Fragment size */ +- __u16 i_pad1; ++ __u16 l_i_xid; /* LRU Context */ + __le16 l_i_uid_high; /* these 2 fields */ + __le16 l_i_gid_high; /* were reserved2[0] */ + __u32 l_i_reserved2; +@@ -321,6 +331,7 @@ struct ext3_inode { + #define i_gid_low i_gid + #define i_uid_high osd2.linux2.l_i_uid_high + #define i_gid_high osd2.linux2.l_i_gid_high ++#define i_raw_xid osd2.linux2.l_i_xid + #define i_reserved2 osd2.linux2.l_i_reserved2 + + #elif defined(__GNU__) +@@ -375,6 +386,7 @@ struct ext3_inode { + #define EXT3_MOUNT_QUOTA 0x80000 /* Some quota option set */ + #define EXT3_MOUNT_USRQUOTA 0x100000 /* "old" user quota */ + #define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */ ++#define EXT3_MOUNT_TAGXID (1<<24) /* Enable Context Tags */ + + /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */ + #ifndef _LINUX_EXT2_FS_H +@@ -775,6 +787,7 @@ extern unsigned long ext3_count_free (st + extern int ext3_forget(handle_t *, int, struct inode *, struct buffer_head *, int); + extern struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *); + extern struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *); ++extern int ext3_sync_flags(struct inode *inode); + + extern void ext3_read_inode (struct inode *); + extern int ext3_write_inode (struct inode *, int); +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/fs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/fs.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/fs.h +@@ -10,6 +10,7 @@ + #include <linux/limits.h> + #include <linux/ioctl.h> + #include <linux/rcuref.h> ++#include <linux/mount.h> + + /* + * It's silly to have NR_OPEN bigger than NR_FILE, but you can change +@@ -109,6 +110,8 @@ extern int dir_notify_enable; + #define MS_SLAVE (1<<19) /* change to slave */ + #define MS_SHARED (1<<20) /* change to shared */ + #define MS_POSIXACL (1<<16) /* VFS does not apply the umask */ ++#define MS_TAGXID (1<<24) /* tag inodes with context information */ ++#define MS_XID (1<<25) /* use specific xid for this mount */ + #define MS_ACTIVE (1<<30) + #define MS_NOUSER (1<<31) + +@@ -136,6 +139,8 @@ extern int dir_notify_enable; + #define S_NOCMTIME 128 /* Do not update file c/mtime */ + #define S_SWAPFILE 256 /* Do not truncate: swapon got its bmaps */ + #define S_PRIVATE 512 /* Inode is fs-internal */ ++#define S_BARRIER 1024 /* Barrier for chroot() */ ++#define S_IUNLINK 2048 /* Immutable unlink */ + + /* + * Note that nosuid etc flags are inode-specific: setting some file-system +@@ -152,20 +157,24 @@ extern int dir_notify_enable; + */ + #define __IS_FLG(inode,flg) ((inode)->i_sb->s_flags & (flg)) + +-#define IS_RDONLY(inode) ((inode)->i_sb->s_flags & MS_RDONLY) ++#define IS_RDONLY(inode) __IS_FLG(inode, MS_RDONLY) + #define IS_SYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS) || \ + ((inode)->i_flags & S_SYNC)) + #define IS_DIRSYNC(inode) (__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \ + ((inode)->i_flags & (S_SYNC|S_DIRSYNC))) + #define IS_MANDLOCK(inode) __IS_FLG(inode, MS_MANDLOCK) ++#define IS_TAGXID(inode) __IS_FLG(inode, MS_TAGXID) + + #define IS_NOQUOTA(inode) ((inode)->i_flags & S_NOQUOTA) + #define IS_APPEND(inode) ((inode)->i_flags & S_APPEND) + #define IS_IMMUTABLE(inode) ((inode)->i_flags & S_IMMUTABLE) ++#define IS_IUNLINK(inode) ((inode)->i_flags & S_IUNLINK) ++#define IS_IXORUNLINK(inode) ((IS_IUNLINK(inode) ? S_IMMUTABLE : 0) ^ IS_IMMUTABLE(inode)) + #define IS_NOATIME(inode) (__IS_FLG(inode, MS_NOATIME) || ((inode)->i_flags & S_NOATIME)) + #define IS_NODIRATIME(inode) __IS_FLG(inode, MS_NODIRATIME) + #define IS_POSIXACL(inode) __IS_FLG(inode, MS_POSIXACL) + ++#define IS_BARRIER(inode) (S_ISDIR((inode)->i_mode) && ((inode)->i_flags & S_BARRIER)) + #define IS_DEADDIR(inode) ((inode)->i_flags & S_DEAD) + #define IS_NOCMTIME(inode) ((inode)->i_flags & S_NOCMTIME) + #define IS_SWAPFILE(inode) ((inode)->i_flags & S_SWAPFILE) +@@ -269,6 +278,7 @@ typedef void (dio_iodone_t)(struct kiocb + #define ATTR_KILL_SUID 2048 + #define ATTR_KILL_SGID 4096 + #define ATTR_FILE 8192 ++#define ATTR_XID 16384 + + /* + * This is the Inode Attributes structure, used for notify_change(). It +@@ -284,6 +294,7 @@ struct iattr { + umode_t ia_mode; + uid_t ia_uid; + gid_t ia_gid; ++ xid_t ia_xid; + loff_t ia_size; + struct timespec ia_atime; + struct timespec ia_mtime; +@@ -297,6 +308,9 @@ struct iattr { + struct file *ia_file; + }; + ++#define ATTR_FLAG_BARRIER 512 /* Barrier for chroot() */ ++#define ATTR_FLAG_IUNLINK 1024 /* Immutable unlink */ ++ + /* + * Includes for diskquotas. + */ +@@ -442,6 +456,7 @@ struct inode { + unsigned int i_nlink; + uid_t i_uid; + gid_t i_gid; ++ xid_t i_xid; + dev_t i_rdev; + loff_t i_size; + struct timespec i_atime; +@@ -604,6 +619,7 @@ struct file { + struct fown_struct f_owner; + unsigned int f_uid, f_gid; + struct file_ra_state f_ra; ++ xid_t f_xid; + + unsigned long f_version; + void *f_security; +@@ -683,6 +699,7 @@ struct file_lock { + unsigned char fl_type; + loff_t fl_start; + loff_t fl_end; ++ xid_t fl_xid; + + struct fasync_struct * fl_fasync; /* for lease break notifications */ + unsigned long fl_break_time; /* for nonblocking lease breaks */ +@@ -876,12 +893,12 @@ static inline void unlock_super(struct s + */ + extern int vfs_permission(struct nameidata *, int); + extern int vfs_create(struct inode *, struct dentry *, int, struct nameidata *); +-extern int vfs_mkdir(struct inode *, struct dentry *, int); +-extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t); +-extern int vfs_symlink(struct inode *, struct dentry *, const char *, int); +-extern int vfs_link(struct dentry *, struct inode *, struct dentry *); +-extern int vfs_rmdir(struct inode *, struct dentry *); +-extern int vfs_unlink(struct inode *, struct dentry *); ++extern int vfs_mkdir(struct inode *, struct dentry *, int, struct nameidata *); ++extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t, struct nameidata *); ++extern int vfs_symlink(struct inode *, struct dentry *, const char *, int, struct nameidata *); ++extern int vfs_link(struct dentry *, struct inode *, struct dentry *, struct nameidata *); ++extern int vfs_rmdir(struct inode *, struct dentry *, struct nameidata *); ++extern int vfs_unlink(struct inode *, struct dentry *, struct nameidata *); + extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *); + + /* +@@ -1019,6 +1036,7 @@ struct inode_operations { + ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t); + ssize_t (*listxattr) (struct dentry *, char *, size_t); + int (*removexattr) (struct dentry *, const char *); ++ int (*sync_flags) (struct inode *); + }; + + struct seq_file; +@@ -1087,8 +1105,16 @@ static inline void mark_inode_dirty_sync + + static inline void touch_atime(struct vfsmount *mnt, struct dentry *dentry) + { +- /* per-mountpoint checks will go here */ +- update_atime(dentry->d_inode); ++ struct inode *inode = dentry->d_inode; ++ ++ if (MNT_IS_NOATIME(mnt)) ++ return; ++ if (S_ISDIR(inode->i_mode) && MNT_IS_NODIRATIME(mnt)) ++ return; ++ if (IS_RDONLY(inode) || MNT_IS_RDONLY(mnt)) ++ return; ++ ++ update_atime(inode); + } + + static inline void file_accessed(struct file *file) +@@ -1653,6 +1679,7 @@ extern int dcache_dir_open(struct inode + extern int dcache_dir_close(struct inode *, struct file *); + extern loff_t dcache_dir_lseek(struct file *, loff_t, int); + extern int dcache_readdir(struct file *, void *, filldir_t); ++extern int dcache_readdir_filter(struct file *, void *, filldir_t, int (*)(struct dentry *)); + extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *); + extern int simple_statfs(struct super_block *, struct kstatfs *); + extern int simple_link(struct dentry *, struct inode *, struct dentry *); +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/init_task.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/init_task.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/init_task.h +@@ -121,6 +121,10 @@ extern struct group_info init_groups; + .journal_info = NULL, \ + .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ + .fs_excl = ATOMIC_INIT(0), \ ++ .xid = 0, \ ++ .vx_info = NULL, \ ++ .nid = 0, \ ++ .nx_info = NULL, \ + } + + +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/ip.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/ip.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/ip.h +@@ -139,6 +139,7 @@ struct inet_sock { + /* Socket demultiplex comparisons on incoming packets. */ + __u32 daddr; /* Foreign IPv4 addr */ + __u32 rcv_saddr; /* Bound local IPv4 addr */ ++ __u32 rcv_saddr2; /* Second bound ipv4 addr, for ipv4root */ + __u16 dport; /* Destination port */ + __u16 num; /* Local port */ + __u32 saddr; /* Sending source */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/ipc.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/ipc.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/ipc.h +@@ -66,6 +66,7 @@ struct kern_ipc_perm + mode_t mode; + unsigned long seq; + void *security; ++ xid_t xid; + }; + + #endif /* __KERNEL__ */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/kernel.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/kernel.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/kernel.h +@@ -17,6 +17,7 @@ + #include <asm/bug.h> + + extern const char linux_banner[]; ++extern const char vx_linux_banner[]; + + #define INT_MAX ((int)(~0U>>1)) + #define INT_MIN (-INT_MAX - 1) +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/major.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/major.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/major.h +@@ -15,6 +15,7 @@ + #define HD_MAJOR IDE0_MAJOR + #define PTY_SLAVE_MAJOR 3 + #define TTY_MAJOR 4 ++#define VROOT_MAJOR 4 + #define TTYAUX_MAJOR 5 + #define LP_MAJOR 6 + #define VCS_MAJOR 7 +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/mount.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/mount.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/mount.h +@@ -20,9 +20,13 @@ + #define MNT_NOSUID 0x01 + #define MNT_NODEV 0x02 + #define MNT_NOEXEC 0x04 ++#define MNT_RDONLY 0x08 + #define MNT_SHARED 0x10 /* if the vfsmount is a shared mount */ + #define MNT_UNBINDABLE 0x20 /* if the vfsmount is a unbindable mount */ + #define MNT_PNODE_MASK 0x30 /* propogation flag mask */ ++#define MNT_NOATIME 0x40 ++#define MNT_NODIRATIME 0x80 ++#define MNT_XID 0x100 + + struct vfsmount { + struct list_head mnt_hash; +@@ -44,8 +48,13 @@ struct vfsmount { + struct vfsmount *mnt_master; /* slave is on master->mnt_slave_list */ + struct namespace *mnt_namespace; /* containing namespace */ + int mnt_pinned; ++ xid_t mnt_xid; /* xid tagging used for vfsmount */ + }; + ++#define MNT_IS_RDONLY(m) ((m) && ((m)->mnt_flags & MNT_RDONLY)) ++#define MNT_IS_NOATIME(m) ((m) && ((m)->mnt_flags & MNT_NOATIME)) ++#define MNT_IS_NODIRATIME(m) ((m) && ((m)->mnt_flags & MNT_NODIRATIME)) ++ + static inline struct vfsmount *mntget(struct vfsmount *mnt) + { + if (mnt) +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/namespace.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/namespace.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/namespace.h +@@ -15,6 +15,7 @@ struct namespace { + + extern int copy_namespace(int, struct task_struct *); + extern void __put_namespace(struct namespace *namespace); ++extern void umount_unused(struct vfsmount *, struct fs_struct *); + + static inline void put_namespace(struct namespace *namespace) + { +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/net.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/net.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/net.h +@@ -62,6 +62,7 @@ typedef enum { + #define SOCK_ASYNC_WAITDATA 1 + #define SOCK_NOSPACE 2 + #define SOCK_PASSCRED 3 ++#define SOCK_USER_SOCKET 4 + + #ifndef ARCH_HAS_SOCKET_TYPES + /** +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/nfs_mount.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/nfs_mount.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/nfs_mount.h +@@ -61,6 +61,7 @@ struct nfs_mount_data { + #define NFS_MOUNT_NOACL 0x0800 /* 4 */ + #define NFS_MOUNT_STRICTLOCK 0x1000 /* reserved for NFSv4 */ + #define NFS_MOUNT_SECFLAVOUR 0x2000 /* 5 */ ++#define NFS_MOUNT_TAGXID 0x8000 /* tagxid */ + #define NFS_MOUNT_FLAGMASK 0xFFFF + + #endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/percpu.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/percpu.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/percpu.h +@@ -8,7 +8,7 @@ + + /* Enough to cover all DEFINE_PER_CPUs in kernel, including modules. */ + #ifndef PERCPU_ENOUGH_ROOM +-#define PERCPU_ENOUGH_ROOM 32768 ++#define PERCPU_ENOUGH_ROOM 65536 + #endif + + /* Must be an lvalue. */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/proc_fs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/proc_fs.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/proc_fs.h +@@ -55,6 +55,7 @@ struct proc_dir_entry { + nlink_t nlink; + uid_t uid; + gid_t gid; ++ int vx_flags; + unsigned long size; + struct inode_operations * proc_iops; + struct file_operations * proc_fops; +@@ -243,9 +244,11 @@ extern void kclist_add(struct kcore_list + struct proc_inode { + struct task_struct *task; + int type; ++ int vx_flags; + union { + int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **); + int (*proc_read)(struct task_struct *task, char *page); ++ int (*proc_vid_read)(int vid, char *page); + } op; + struct proc_dir_entry *pde; + struct inode vfs_inode; +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/reiserfs_fs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/reiserfs_fs.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/reiserfs_fs.h +@@ -829,6 +829,18 @@ struct stat_data_v1 { + #define REISERFS_COMPR_FL EXT2_COMPR_FL + #define REISERFS_NOTAIL_FL EXT2_NOTAIL_FL + ++/* unfortunately reiserfs sdattr is only 16 bit */ ++#define REISERFS_BARRIER_FL (EXT2_BARRIER_FL >> 16) ++#define REISERFS_IUNLINK_FL (EXT2_IUNLINK_FL >> 16) ++ ++#ifdef CONFIG_VSERVER_LEGACY ++#define REISERFS_FL_USER_VISIBLE (REISERFS_IUNLINK_FL|0x80FF) ++#define REISERFS_FL_USER_MODIFIABLE (REISERFS_IUNLINK_FL|0x80FF) ++#else ++#define REISERFS_FL_USER_VISIBLE 0x80FF ++#define REISERFS_FL_USER_MODIFIABLE 0x80FF ++#endif ++ + /* persistent flags that file inherits from the parent directory */ + #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL | \ + REISERFS_SYNC_FL | \ +@@ -1904,6 +1916,7 @@ static inline void reiserfs_update_sd(st + void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode); + void i_attrs_to_sd_attrs(struct inode *inode, __u16 * sd_attrs); + int reiserfs_setattr(struct dentry *dentry, struct iattr *attr); ++int reiserfs_sync_flags(struct inode *inode); + + /* namei.c */ + void set_de_name_and_namelen(struct reiserfs_dir_entry *de); +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/reiserfs_fs_sb.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/reiserfs_fs_sb.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/reiserfs_fs_sb.h +@@ -457,6 +457,7 @@ enum reiserfs_mount_options { + REISERFS_POSIXACL, + REISERFS_BARRIER_NONE, + REISERFS_BARRIER_FLUSH, ++ REISERFS_TAGXID, + + /* Actions on error */ + REISERFS_ERROR_PANIC, +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/sched.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/sched.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/sched.h +@@ -34,6 +34,7 @@ + #include <linux/percpu.h> + #include <linux/topology.h> + #include <linux/seccomp.h> ++#include <linux/vs_base.h> + + #include <linux/auxvec.h> /* For AT_VECTOR_SIZE */ + +@@ -127,6 +128,7 @@ extern unsigned long nr_iowait(void); + #define EXIT_DEAD 32 + /* in tsk->state again */ + #define TASK_NONINTERACTIVE 64 ++#define TASK_ONHOLD 128 + + #define __set_task_state(tsk, state_value) \ + do { (tsk)->state = (state_value); } while (0) +@@ -255,23 +257,21 @@ extern void arch_unmap_area_topdown(stru + * so must be incremented atomically. + */ + #ifdef ATOMIC64_INIT +-#define set_mm_counter(mm, member, value) atomic64_set(&(mm)->_##member, value) +-#define get_mm_counter(mm, member) ((unsigned long)atomic64_read(&(mm)->_##member)) +-#define add_mm_counter(mm, member, value) atomic64_add(value, &(mm)->_##member) +-#define inc_mm_counter(mm, member) atomic64_inc(&(mm)->_##member) +-#define dec_mm_counter(mm, member) atomic64_dec(&(mm)->_##member) + typedef atomic64_t mm_counter_t; ++#define __set_mm_counter(mm, member, value) \ ++ atomic64_set(&(mm)->_##member, value) ++#define get_mm_counter(mm, member) \ ++ ((unsigned long)atomic64_read(&(mm)->_##member)) + #else /* !ATOMIC64_INIT */ + /* + * The counters wrap back to 0 at 2^32 * PAGE_SIZE, + * that is, at 16TB if using 4kB page size. + */ +-#define set_mm_counter(mm, member, value) atomic_set(&(mm)->_##member, value) +-#define get_mm_counter(mm, member) ((unsigned long)atomic_read(&(mm)->_##member)) +-#define add_mm_counter(mm, member, value) atomic_add(value, &(mm)->_##member) +-#define inc_mm_counter(mm, member) atomic_inc(&(mm)->_##member) +-#define dec_mm_counter(mm, member) atomic_dec(&(mm)->_##member) + typedef atomic_t mm_counter_t; ++#define __set_mm_counter(mm, member, value) \ ++ atomic_set(&(mm)->_##member, value) ++#define get_mm_counter(mm, member) \ ++ ((unsigned long)atomic_read(&(mm)->_##member)) + #endif /* !ATOMIC64_INIT */ + + #else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ +@@ -279,15 +279,19 @@ typedef atomic_t mm_counter_t; + * The mm counters are protected by its page_table_lock, + * so can be incremented directly. + */ +-#define set_mm_counter(mm, member, value) (mm)->_##member = (value) +-#define get_mm_counter(mm, member) ((mm)->_##member) +-#define add_mm_counter(mm, member, value) (mm)->_##member += (value) +-#define inc_mm_counter(mm, member) (mm)->_##member++ +-#define dec_mm_counter(mm, member) (mm)->_##member-- + typedef unsigned long mm_counter_t; ++#define __set_mm_counter(mm, member, value) (mm)->_##member = (value) ++#define get_mm_counter(mm, member) ((mm)->_##member) + + #endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ + ++#define set_mm_counter(mm, member, value) \ ++ vx_ ## member ## pages_sub((mm), (get_mm_counter(mm, member) - value)) ++#define add_mm_counter(mm, member, value) \ ++ vx_ ## member ## pages_add((mm), (value)) ++#define inc_mm_counter(mm, member) vx_ ## member ## pages_inc((mm)) ++#define dec_mm_counter(mm, member) vx_ ## member ## pages_dec((mm)) ++ + #define get_mm_rss(mm) \ + (get_mm_counter(mm, file_rss) + get_mm_counter(mm, anon_rss)) + #define update_hiwater_rss(mm) do { \ +@@ -345,6 +349,7 @@ struct mm_struct { + + /* Architecture-specific MM context */ + mm_context_t context; ++ struct vx_info *mm_vx_info; + + /* Token based thrashing protection. */ + unsigned long swap_token_time; +@@ -515,9 +520,10 @@ struct user_struct { + /* Hash table maintenance information */ + struct list_head uidhash_list; + uid_t uid; ++ xid_t xid; + }; + +-extern struct user_struct *find_user(uid_t); ++extern struct user_struct *find_user(xid_t, uid_t); + + extern struct user_struct root_user; + #define INIT_USER (&root_user) +@@ -812,6 +818,14 @@ struct task_struct { + struct audit_context *audit_context; + seccomp_t seccomp; + ++/* vserver context data */ ++ xid_t xid; ++ struct vx_info *vx_info; ++ ++/* vserver network data */ ++ nid_t nid; ++ struct nx_info *nx_info; ++ + /* Thread group tracking */ + u32 parent_exec_id; + u32 self_exec_id; +@@ -1000,13 +1014,19 @@ extern struct task_struct init_task; + + extern struct mm_struct init_mm; + +-#define find_task_by_pid(nr) find_task_by_pid_type(PIDTYPE_PID, nr) ++ ++#define find_task_by_real_pid(nr) \ ++ find_task_by_pid_type(PIDTYPE_PID, nr) ++#define find_task_by_pid(nr) \ ++ find_task_by_pid_type(PIDTYPE_PID, \ ++ vx_rmap_pid(nr)) ++ + extern struct task_struct *find_task_by_pid_type(int type, int pid); + extern void set_special_pids(pid_t session, pid_t pgrp); + extern void __set_special_pids(pid_t session, pid_t pgrp); + + /* per-UID process charging. */ +-extern struct user_struct * alloc_uid(uid_t); ++extern struct user_struct * alloc_uid(xid_t, uid_t); + static inline struct user_struct *get_uid(struct user_struct *u) + { + atomic_inc(&u->__count); +@@ -1105,15 +1125,28 @@ static inline int sas_ss_flags(unsigned + #ifdef CONFIG_SECURITY + /* code is in security.c */ + extern int capable(int cap); ++extern int vx_capable(int cap, int ccap); + #else + static inline int capable(int cap) + { ++ if (vx_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap)) ++ return 0; + if (cap_raised(current->cap_effective, cap)) { + current->flags |= PF_SUPERPRIV; + return 1; + } + return 0; + } ++ ++static inline int vx_capable(int cap, int ccap) ++{ ++ if (cap_raised(current->cap_effective, cap) && ++ vx_ccaps(ccap)) { ++ current->flags |= PF_SUPERPRIV; ++ return 1; ++ } ++ return 0; ++} + #endif + + /* +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/shmem_fs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/shmem_fs.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/shmem_fs.h +@@ -8,6 +8,9 @@ + + #define SHMEM_NR_DIRECT 16 + ++#define TMPFS_SUPER_MAGIC 0x01021994 ++ ++ + struct shmem_inode_info { + spinlock_t lock; + unsigned long flags; +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/stat.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/stat.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/stat.h +@@ -63,6 +63,7 @@ struct kstat { + unsigned int nlink; + uid_t uid; + gid_t gid; ++ xid_t xid; + dev_t rdev; + loff_t size; + struct timespec atime; +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/sunrpc/auth.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/sunrpc/auth.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/sunrpc/auth.h +@@ -28,6 +28,7 @@ + struct auth_cred { + uid_t uid; + gid_t gid; ++ xid_t xid; + struct group_info *group_info; + }; + +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/sunrpc/clnt.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/sunrpc/clnt.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/sunrpc/clnt.h +@@ -52,7 +52,8 @@ struct rpc_clnt { + cl_chatty : 1,/* be verbose */ + cl_autobind : 1,/* use getport() */ + cl_oneshot : 1,/* dispose after use */ +- cl_dead : 1;/* abandoned */ ++ cl_dead : 1,/* abandoned */ ++ cl_tagxid : 1;/* do xid tagging */ + + struct rpc_rtt * cl_rtt; /* RTO estimator data */ + struct rpc_portmap * cl_pmap; /* port mapping */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/sysctl.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/sysctl.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/sysctl.h +@@ -150,6 +150,7 @@ enum + #ifdef CONFIG_ALPHA_UAC_SYSCTL + KERN_UAC_POLICY=72, /* int: Alpha unaligned access control policy flags */ + #endif /* CONFIG_ALPHA_UAC_SYSCTL */ ++ KERN_VSHELPER=73, /* string: path to vshelper policy agent */ + }; + + +@@ -890,6 +891,9 @@ typedef int ctl_handler (ctl_table *tabl + typedef int proc_handler (ctl_table *ctl, int write, struct file * filp, + void __user *buffer, size_t *lenp, loff_t *ppos); + ++typedef int virt_handler (struct ctl_table *ctl, int write, xid_t xid, ++ void **datap, size_t *lenp); ++ + extern int proc_dostring(ctl_table *, int, struct file *, + void __user *, size_t *, loff_t *); + extern int proc_dointvec(ctl_table *, int, struct file *, +@@ -971,6 +975,7 @@ struct ctl_table + mode_t mode; + ctl_table *child; + proc_handler *proc_handler; /* Callback for text formatting */ ++ virt_handler *virt_handler; /* Context virtualization */ + ctl_handler *strategy; /* Callback function for all r/w */ + struct proc_dir_entry *de; /* /proc control block */ + void *extra1; +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/sysfs.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/sysfs.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/sysfs.h +@@ -12,6 +12,8 @@ + + #include <asm/atomic.h> + ++#define SYSFS_SUPER_MAGIC 0x62656572 ++ + struct kobject; + struct module; + +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/types.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/linux/types.h ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/types.h +@@ -36,6 +36,8 @@ typedef __kernel_uid32_t uid_t; + typedef __kernel_gid32_t gid_t; + typedef __kernel_uid16_t uid16_t; + typedef __kernel_gid16_t gid16_t; ++typedef unsigned int xid_t; ++typedef unsigned int nid_t; + + #ifdef CONFIG_UID16 + /* This is defined by include/asm-{arch}/posix_types.h */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vroot.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vroot.h +@@ -0,0 +1,51 @@ ++ ++/* ++ * include/linux/vroot.h ++ * ++ * written by Herbert Pötzl, 9/11/2002 ++ * ported to 2.6 by Herbert Pötzl, 30/12/2004 ++ * ++ * Copyright (C) 2002-2005 by Herbert Pötzl. ++ * Redistribution of this file is permitted under the ++ * GNU General Public License. ++ */ ++ ++#ifndef _LINUX_VROOT_H ++#define _LINUX_VROOT_H ++ ++ ++#ifdef __KERNEL__ ++ ++/* Possible states of device */ ++enum { ++ Vr_unbound, ++ Vr_bound, ++}; ++ ++struct vroot_device { ++ int vr_number; ++ int vr_refcnt; ++ ++ struct semaphore vr_ctl_mutex; ++ struct block_device *vr_device; ++ int vr_state; ++}; ++ ++ ++typedef struct block_device *(vroot_grb_func)(struct block_device *); ++ ++extern int register_vroot_grb(vroot_grb_func *); ++extern int unregister_vroot_grb(vroot_grb_func *); ++ ++#endif /* __KERNEL__ */ ++ ++#define MAX_VROOT_DEFAULT 8 ++ ++/* ++ * IOCTL commands --- we will commandeer 0x56 ('V') ++ */ ++ ++#define VROOT_SET_DEV 0x5600 ++#define VROOT_CLR_DEV 0x5601 ++ ++#endif /* _LINUX_VROOT_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_base.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_base.h +@@ -0,0 +1,103 @@ ++#ifndef _VX_VS_BASE_H ++#define _VX_VS_BASE_H ++ ++#include "vserver/context.h" ++ ++ ++#define vx_task_xid(t) ((t)->xid) ++ ++#define vx_current_xid() vx_task_xid(current) ++ ++#define vx_check(c,m) __vx_check(vx_current_xid(),c,m) ++ ++#define vx_weak_check(c,m) ((m) ? vx_check(c,m) : 1) ++ ++ ++/* ++ * check current context for ADMIN/WATCH and ++ * optionally agains supplied argument ++ */ ++static inline int __vx_check(xid_t cid, xid_t id, unsigned int mode) ++{ ++ if (mode & VX_ARG_MASK) { ++ if ((mode & VX_IDENT) && ++ (id == cid)) ++ return 1; ++ } ++ if (mode & VX_ATR_MASK) { ++ if ((mode & VX_DYNAMIC) && ++ (id >= MIN_D_CONTEXT) && ++ (id <= MAX_S_CONTEXT)) ++ return 1; ++ if ((mode & VX_STATIC) && ++ (id > 1) && (id < MIN_D_CONTEXT)) ++ return 1; ++ } ++ return (((mode & VX_ADMIN) && (cid == 0)) || ++ ((mode & VX_WATCH) && (cid == 1)) || ++ ((mode & VX_HOSTID) && (id == 0))); ++} ++ ++ ++#define __vx_state(v) ((v) ? ((v)->vx_state) : 0) ++ ++#define vx_info_state(v,m) (__vx_state(v) & (m)) ++ ++ ++/* generic flag merging */ ++ ++#define vx_check_flags(v,m,f) (((v) & (m)) ^ (f)) ++ ++#define vx_mask_flags(v,f,m) (((v) & ~(m)) | ((f) & (m))) ++ ++#define vx_mask_mask(v,f,m) (((v) & ~(m)) | ((v) & (f) & (m))) ++ ++#define vx_check_bit(v,n) ((v) & (1LL << (n))) ++ ++ ++/* context flags */ ++ ++#define __vx_flags(v) ((v) ? (v)->vx_flags : 0) ++ ++#define vx_current_flags() __vx_flags(current->vx_info) ++ ++#define vx_info_flags(v,m,f) \ ++ vx_check_flags(__vx_flags(v),(m),(f)) ++ ++#define task_vx_flags(t,m,f) \ ++ ((t) && vx_info_flags((t)->vx_info, (m), (f))) ++ ++#define vx_flags(m,f) vx_info_flags(current->vx_info,(m),(f)) ++ ++ ++/* context caps */ ++ ++#define __vx_ccaps(v) ((v) ? (v)->vx_ccaps : 0) ++ ++#define vx_current_ccaps() __vx_ccaps(current->vx_info) ++ ++#define vx_info_ccaps(v,c) (__vx_ccaps(v) & (c)) ++ ++#define vx_ccaps(c) vx_info_ccaps(current->vx_info,(c)) ++ ++ ++#define __vx_mcaps(v) ((v) ? (v)->vx_ccaps >> 32UL : ~0 ) ++ ++#define vx_info_mcaps(v,c) (__vx_mcaps(v) & (c)) ++ ++#define vx_mcaps(c) vx_info_mcaps(current->vx_info,(c)) ++ ++ ++#define vx_current_bcaps() \ ++ (((current->vx_info) && !vx_flags(VXF_STATE_SETUP, 0)) ? \ ++ current->vx_info->vx_bcaps : cap_bset) ++ ++ ++#define vx_current_initpid(n) \ ++ (current->vx_info && \ ++ (current->vx_info->vx_initpid == (n))) ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_context.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_context.h +@@ -0,0 +1,170 @@ ++#ifndef _VX_VS_CONTEXT_H ++#define _VX_VS_CONTEXT_H ++ ++#include <linux/kernel.h> ++#include "vserver/debug.h" ++ ++ ++#define get_vx_info(i) __get_vx_info(i,__FILE__,__LINE__) ++ ++static inline struct vx_info *__get_vx_info(struct vx_info *vxi, ++ const char *_file, int _line) ++{ ++ if (!vxi) ++ return NULL; ++ ++ vxlprintk(VXD_CBIT(xid, 2), "get_vx_info(%p[#%d.%d])", ++ vxi, vxi?vxi->vx_id:0, vxi?atomic_read(&vxi->vx_usecnt):0, ++ _file, _line); ++ vxh_get_vx_info(vxi); ++ ++ atomic_inc(&vxi->vx_usecnt); ++ return vxi; ++} ++ ++ ++extern void free_vx_info(struct vx_info *); ++ ++#define put_vx_info(i) __put_vx_info(i,__FILE__,__LINE__) ++ ++static inline void __put_vx_info(struct vx_info *vxi, ++ const char *_file, int _line) ++{ ++ if (!vxi) ++ return; ++ ++ vxlprintk(VXD_CBIT(xid, 2), "put_vx_info(%p[#%d.%d])", ++ vxi, vxi?vxi->vx_id:0, vxi?atomic_read(&vxi->vx_usecnt):0, ++ _file, _line); ++ vxh_put_vx_info(vxi); ++ ++ if (atomic_dec_and_test(&vxi->vx_usecnt)) ++ free_vx_info(vxi); ++} ++ ++ ++#define init_vx_info(p,i) __init_vx_info(p,i,__FILE__,__LINE__) ++ ++static inline void __init_vx_info(struct vx_info **vxp, struct vx_info *vxi, ++ const char *_file, int _line) ++{ ++ if (vxi) { ++ vxlprintk(VXD_CBIT(xid, 3), ++ "init_vx_info(%p[#%d.%d])", ++ vxi, vxi?vxi->vx_id:0, ++ vxi?atomic_read(&vxi->vx_usecnt):0, ++ _file, _line); ++ vxh_init_vx_info(vxi, vxp); ++ ++ atomic_inc(&vxi->vx_usecnt); ++ } ++ *vxp = vxi; ++} ++ ++ ++#define set_vx_info(p,i) __set_vx_info(p,i,__FILE__,__LINE__) ++ ++static inline void __set_vx_info(struct vx_info **vxp, struct vx_info *vxi, ++ const char *_file, int _line) ++{ ++ struct vx_info *vxo; ++ ++ if (!vxi) ++ return; ++ ++ vxlprintk(VXD_CBIT(xid, 3), "set_vx_info(%p[#%d.%d])", ++ vxi, vxi?vxi->vx_id:0, ++ vxi?atomic_read(&vxi->vx_usecnt):0, ++ _file, _line); ++ vxh_set_vx_info(vxi, vxp); ++ ++ atomic_inc(&vxi->vx_usecnt); ++ vxo = xchg(vxp, vxi); ++ BUG_ON(vxo); ++} ++ ++ ++#define clr_vx_info(p) __clr_vx_info(p,__FILE__,__LINE__) ++ ++static inline void __clr_vx_info(struct vx_info **vxp, ++ const char *_file, int _line) ++{ ++ struct vx_info *vxo; ++ ++ vxo = xchg(vxp, NULL); ++ if (!vxo) ++ return; ++ ++ vxlprintk(VXD_CBIT(xid, 3), "clr_vx_info(%p[#%d.%d])", ++ vxo, vxo?vxo->vx_id:0, ++ vxo?atomic_read(&vxo->vx_usecnt):0, ++ _file, _line); ++ vxh_clr_vx_info(vxo, vxp); ++ ++ if (atomic_dec_and_test(&vxo->vx_usecnt)) ++ free_vx_info(vxo); ++} ++ ++ ++#define claim_vx_info(v,p) __claim_vx_info(v,p,__FILE__,__LINE__) ++ ++static inline void __claim_vx_info(struct vx_info *vxi, ++ struct task_struct *task, const char *_file, int _line) ++{ ++ vxlprintk(VXD_CBIT(xid, 3), "claim_vx_info(%p[#%d.%d.%d]) %p", ++ vxi, vxi?vxi->vx_id:0, ++ vxi?atomic_read(&vxi->vx_usecnt):0, ++ vxi?atomic_read(&vxi->vx_tasks):0, ++ task, _file, _line); ++ vxh_claim_vx_info(vxi, task); ++ ++ atomic_inc(&vxi->vx_tasks); ++} ++ ++ ++extern void unhash_vx_info(struct vx_info *); ++ ++#define release_vx_info(v,p) __release_vx_info(v,p,__FILE__,__LINE__) ++ ++static inline void __release_vx_info(struct vx_info *vxi, ++ struct task_struct *task, const char *_file, int _line) ++{ ++ vxlprintk(VXD_CBIT(xid, 3), "release_vx_info(%p[#%d.%d.%d]) %p", ++ vxi, vxi?vxi->vx_id:0, ++ vxi?atomic_read(&vxi->vx_usecnt):0, ++ vxi?atomic_read(&vxi->vx_tasks):0, ++ task, _file, _line); ++ vxh_release_vx_info(vxi, task); ++ ++ might_sleep(); ++ ++ if (atomic_dec_and_test(&vxi->vx_tasks)) ++ unhash_vx_info(vxi); ++} ++ ++ ++#define task_get_vx_info(p) __task_get_vx_info(p,__FILE__,__LINE__) ++ ++static __inline__ struct vx_info *__task_get_vx_info(struct task_struct *p, ++ const char *_file, int _line) ++{ ++ struct vx_info *vxi; ++ ++ task_lock(p); ++ vxlprintk(VXD_CBIT(xid, 5), "task_get_vx_info(%p)", ++ p, _file, _line); ++ vxi = __get_vx_info(p->vx_info, _file, _line); ++ task_unlock(p); ++ return vxi; ++} ++ ++ ++static inline void __wakeup_vx_info(struct vx_info *vxi) ++{ ++ if (waitqueue_active(&vxi->vx_wait)) ++ wake_up_interruptible(&vxi->vx_wait); ++} ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_cvirt.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_cvirt.h +@@ -0,0 +1,108 @@ ++#ifndef _VX_VS_CVIRT_H ++#define _VX_VS_CVIRT_H ++ ++#include "vserver/cvirt.h" ++#include "vserver/debug.h" ++ ++ ++/* utsname virtualization */ ++ ++static inline struct new_utsname *vx_new_utsname(void) ++{ ++ if (current->vx_info) ++ return ¤t->vx_info->cvirt.utsname; ++ return &system_utsname; ++} ++ ++#define vx_new_uts(x) ((vx_new_utsname())->x) ++ ++ ++/* pid faking stuff */ ++ ++ ++#define vx_info_map_pid(v,p) \ ++ __vx_info_map_pid((v), (p), __FUNC__, __FILE__, __LINE__) ++#define vx_info_map_tgid(v,p) vx_info_map_pid(v,p) ++#define vx_map_pid(p) vx_info_map_pid(current->vx_info, p) ++#define vx_map_tgid(p) vx_map_pid(p) ++ ++static inline int __vx_info_map_pid(struct vx_info *vxi, int pid, ++ const char *func, const char *file, int line) ++{ ++ if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) { ++ vxfprintk(VXD_CBIT(cvirt, 2), ++ "vx_map_tgid: %p/%llx: %d -> %d", ++ vxi, (long long)vxi->vx_flags, pid, ++ (pid && pid == vxi->vx_initpid)?1:pid, ++ func, file, line); ++ if (pid == 0) ++ return 0; ++ if (pid == vxi->vx_initpid) ++ return 1; ++ } ++ return pid; ++} ++ ++#define vx_info_rmap_pid(v,p) \ ++ __vx_info_rmap_pid((v), (p), __FUNC__, __FILE__, __LINE__) ++#define vx_rmap_pid(p) vx_info_rmap_pid(current->vx_info, p) ++#define vx_rmap_tgid(p) vx_rmap_pid(p) ++ ++static inline int __vx_info_rmap_pid(struct vx_info *vxi, int pid, ++ const char *func, const char *file, int line) ++{ ++ if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) { ++ vxfprintk(VXD_CBIT(cvirt, 2), ++ "vx_rmap_tgid: %p/%llx: %d -> %d", ++ vxi, (long long)vxi->vx_flags, pid, ++ (pid == 1)?vxi->vx_initpid:pid, ++ func, file, line); ++ if ((pid == 1) && vxi->vx_initpid) ++ return vxi->vx_initpid; ++ if (pid == vxi->vx_initpid) ++ return ~0U; ++ } ++ return pid; ++} ++ ++ ++static inline void vx_activate_task(struct task_struct *p) ++{ ++ struct vx_info *vxi; ++ ++ if ((vxi = p->vx_info)) { ++ vx_update_load(vxi); ++ atomic_inc(&vxi->cvirt.nr_running); ++ } ++} ++ ++static inline void vx_deactivate_task(struct task_struct *p) ++{ ++ struct vx_info *vxi; ++ ++ if ((vxi = p->vx_info)) { ++ vx_update_load(vxi); ++ atomic_dec(&vxi->cvirt.nr_running); ++ } ++} ++ ++static inline void vx_uninterruptible_inc(struct task_struct *p) ++{ ++ struct vx_info *vxi; ++ ++ if ((vxi = p->vx_info)) ++ atomic_inc(&vxi->cvirt.nr_uninterruptible); ++} ++ ++static inline void vx_uninterruptible_dec(struct task_struct *p) ++{ ++ struct vx_info *vxi; ++ ++ if ((vxi = p->vx_info)) ++ atomic_dec(&vxi->cvirt.nr_uninterruptible); ++} ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_dlimit.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_dlimit.h +@@ -0,0 +1,213 @@ ++#ifndef _VX_VS_DLIMIT_H ++#define _VX_VS_DLIMIT_H ++ ++#include "vserver/dlimit.h" ++#include "vserver/debug.h" ++ ++ ++#define get_dl_info(i) __get_dl_info(i,__FILE__,__LINE__) ++ ++static inline struct dl_info *__get_dl_info(struct dl_info *dli, ++ const char *_file, int _line) ++{ ++ if (!dli) ++ return NULL; ++ vxlprintk(VXD_CBIT(dlim, 4), "get_dl_info(%p[#%d.%d])", ++ dli, dli?dli->dl_xid:0, dli?atomic_read(&dli->dl_usecnt):0, ++ _file, _line); ++ atomic_inc(&dli->dl_usecnt); ++ return dli; ++} ++ ++ ++#define free_dl_info(i) \ ++ call_rcu(&i->dl_rcu, rcu_free_dl_info); ++ ++#define put_dl_info(i) __put_dl_info(i,__FILE__,__LINE__) ++ ++static inline void __put_dl_info(struct dl_info *dli, ++ const char *_file, int _line) ++{ ++ if (!dli) ++ return; ++ vxlprintk(VXD_CBIT(dlim, 4), "put_dl_info(%p[#%d.%d])", ++ dli, dli?dli->dl_xid:0, dli?atomic_read(&dli->dl_usecnt):0, ++ _file, _line); ++ if (atomic_dec_and_test(&dli->dl_usecnt)) ++ free_dl_info(dli); ++} ++ ++ ++#define __dlimit_char(d) ((d)?'*':' ') ++ ++static inline int __dl_alloc_space(struct super_block *sb, ++ xid_t xid, dlsize_t nr, const char *file, int line) ++{ ++ struct dl_info *dli = NULL; ++ int ret = 0; ++ ++ if (nr == 0) ++ goto out; ++ dli = locate_dl_info(sb, xid); ++ if (!dli) ++ goto out; ++ ++ spin_lock(&dli->dl_lock); ++ ret = (dli->dl_space_used + nr > dli->dl_space_total); ++ if (!ret) ++ dli->dl_space_used += nr; ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++out: ++ vxlprintk(VXD_CBIT(dlim, 1), ++ "ALLOC (%p,#%d)%c %lld bytes (%d)", ++ sb, xid, __dlimit_char(dli), (long long)nr, ++ ret, file, line); ++ return ret; ++} ++ ++static inline void __dl_free_space(struct super_block *sb, ++ xid_t xid, dlsize_t nr, const char *_file, int _line) ++{ ++ struct dl_info *dli = NULL; ++ ++ if (nr == 0) ++ goto out; ++ dli = locate_dl_info(sb, xid); ++ if (!dli) ++ goto out; ++ ++ spin_lock(&dli->dl_lock); ++ if (dli->dl_space_used > nr) ++ dli->dl_space_used -= nr; ++ else ++ dli->dl_space_used = 0; ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++out: ++ vxlprintk(VXD_CBIT(dlim, 1), ++ "FREE (%p,#%d)%c %lld bytes", ++ sb, xid, __dlimit_char(dli), (long long)nr, ++ _file, _line); ++} ++ ++static inline int __dl_alloc_inode(struct super_block *sb, ++ xid_t xid, const char *_file, int _line) ++{ ++ struct dl_info *dli; ++ int ret = 0; ++ ++ dli = locate_dl_info(sb, xid); ++ if (!dli) ++ goto out; ++ ++ spin_lock(&dli->dl_lock); ++ ret = (dli->dl_inodes_used >= dli->dl_inodes_total); ++ if (!ret) ++ dli->dl_inodes_used++; ++#if 0 ++ else ++ vxwprintk("DLIMIT hit (%p,#%d), inode %d>=%d @ %s:%d", ++ sb, xid, ++ dli->dl_inodes_used, dli->dl_inodes_total, ++ file, line); ++#endif ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++out: ++ vxlprintk(VXD_CBIT(dlim, 0), ++ "ALLOC (%p,#%d)%c inode (%d)", ++ sb, xid, __dlimit_char(dli), ret, _file, _line); ++ return ret; ++} ++ ++static inline void __dl_free_inode(struct super_block *sb, ++ xid_t xid, const char *_file, int _line) ++{ ++ struct dl_info *dli; ++ ++ dli = locate_dl_info(sb, xid); ++ if (!dli) ++ goto out; ++ ++ spin_lock(&dli->dl_lock); ++ if (dli->dl_inodes_used > 1) ++ dli->dl_inodes_used--; ++ else ++ dli->dl_inodes_used = 0; ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++out: ++ vxlprintk(VXD_CBIT(dlim, 0), ++ "FREE (%p,#%d)%c inode", ++ sb, xid, __dlimit_char(dli), _file, _line); ++} ++ ++static inline void __dl_adjust_block(struct super_block *sb, xid_t xid, ++ unsigned int *free_blocks, unsigned int *root_blocks, ++ const char *_file, int _line) ++{ ++ struct dl_info *dli; ++ uint64_t broot, bfree; ++ ++ dli = locate_dl_info(sb, xid); ++ if (!dli) ++ return; ++ ++ spin_lock(&dli->dl_lock); ++ broot = (dli->dl_space_total - ++ (dli->dl_space_total >> 10) * dli->dl_nrlmult) ++ >> sb->s_blocksize_bits; ++ bfree = (dli->dl_space_total - dli->dl_space_used) ++ >> sb->s_blocksize_bits; ++ spin_unlock(&dli->dl_lock); ++ ++ vxlprintk(VXD_CBIT(dlim, 2), ++ "ADJUST: %lld,%lld on %d,%d [mult=%d]", ++ (long long)bfree, (long long)broot, ++ *free_blocks, *root_blocks, dli->dl_nrlmult, ++ _file, _line); ++ if (free_blocks) { ++ if (*free_blocks > bfree) ++ *free_blocks = bfree; ++ } ++ if (root_blocks) { ++ if (*root_blocks > broot) ++ *root_blocks = broot; ++ } ++ put_dl_info(dli); ++} ++ ++#define DLIMIT_ALLOC_SPACE(in, bytes) \ ++ __dl_alloc_space((in)->i_sb, (in)->i_xid, (dlsize_t)(bytes), \ ++ __FILE__, __LINE__ ) ++ ++#define DLIMIT_FREE_SPACE(in, bytes) \ ++ __dl_free_space((in)->i_sb, (in)->i_xid, (dlsize_t)(bytes), \ ++ __FILE__, __LINE__ ) ++ ++#define DLIMIT_ALLOC_BLOCK(in, nr) \ ++ __dl_alloc_space((in)->i_sb, (in)->i_xid, \ ++ ((dlsize_t)(nr)) << (in)->i_sb->s_blocksize_bits, \ ++ __FILE__, __LINE__ ) ++ ++#define DLIMIT_FREE_BLOCK(in, nr) \ ++ __dl_free_space((in)->i_sb, (in)->i_xid, \ ++ ((dlsize_t)(nr)) << (in)->i_sb->s_blocksize_bits, \ ++ __FILE__, __LINE__ ) ++ ++ ++#define DLIMIT_ALLOC_INODE(in) \ ++ __dl_alloc_inode((in)->i_sb, (in)->i_xid, __FILE__, __LINE__ ) ++ ++#define DLIMIT_FREE_INODE(in) \ ++ __dl_free_inode((in)->i_sb, (in)->i_xid, __FILE__, __LINE__ ) ++ ++ ++#define DLIMIT_ADJUST_BLOCK(sb, xid, fb, rb) \ ++ __dl_adjust_block(sb, xid, fb, rb, __FILE__, __LINE__ ) ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_limit.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_limit.h +@@ -0,0 +1,107 @@ ++#ifndef _VX_VS_LIMIT_H ++#define _VX_VS_LIMIT_H ++ ++#include "vserver/limit.h" ++#include "vserver/debug.h" ++#include "vserver/limit_int.h" ++ ++ ++#define vx_acc_cres(v,d,p,r) \ ++ __vx_acc_cres(v, r, d, p, __FILE__, __LINE__) ++ ++#define vx_acc_cres_cond(x,d,p,r) \ ++ __vx_acc_cres(((x) == vx_current_xid()) ? current->vx_info : 0, \ ++ r, d, p, __FILE__, __LINE__) ++ ++ ++#define vx_add_cres(v,a,p,r) \ ++ __vx_add_cres(v, r, a, p, __FILE__, __LINE__) ++#define vx_sub_cres(v,a,p,r) vx_add_cres(v,-(a),p,r) ++ ++#define vx_add_cres_cond(x,a,p,r) \ ++ __vx_add_cres(((x) == vx_current_xid()) ? current->vx_info : 0, \ ++ r, a, p, __FILE__, __LINE__) ++#define vx_sub_cres_cond(x,a,p,r) vx_add_cres_cond(x,-(a),p,r) ++ ++ ++/* process and file limits */ ++ ++#define vx_nproc_inc(p) \ ++ vx_acc_cres((p)->vx_info, 1, p, RLIMIT_NPROC) ++ ++#define vx_nproc_dec(p) \ ++ vx_acc_cres((p)->vx_info,-1, p, RLIMIT_NPROC) ++ ++#define vx_files_inc(f) \ ++ vx_acc_cres_cond((f)->f_xid, 1, f, RLIMIT_NOFILE) ++ ++#define vx_files_dec(f) \ ++ vx_acc_cres_cond((f)->f_xid,-1, f, RLIMIT_NOFILE) ++ ++#define vx_locks_inc(l) \ ++ vx_acc_cres_cond((l)->fl_xid, 1, l, RLIMIT_LOCKS) ++ ++#define vx_locks_dec(l) \ ++ vx_acc_cres_cond((l)->fl_xid,-1, l, RLIMIT_LOCKS) ++ ++#define vx_openfd_inc(f) \ ++ vx_acc_cres(current->vx_info, 1, (void *)(long)(f), VLIMIT_OPENFD) ++ ++#define vx_openfd_dec(f) \ ++ vx_acc_cres(current->vx_info,-1, (void *)(long)(f), VLIMIT_OPENFD) ++ ++ ++#define vx_cres_avail(v,n,r) \ ++ __vx_cres_avail(v, r, n, __FILE__, __LINE__) ++ ++ ++#define vx_nproc_avail(n) \ ++ vx_cres_avail(current->vx_info, n, RLIMIT_NPROC) ++ ++#define vx_files_avail(n) \ ++ vx_cres_avail(current->vx_info, n, RLIMIT_NOFILE) ++ ++#define vx_locks_avail(n) \ ++ vx_cres_avail(current->vx_info, n, RLIMIT_LOCKS) ++ ++#define vx_openfd_avail(n) \ ++ vx_cres_avail(current->vx_info, n, VLIMIT_OPENFD) ++ ++ ++/* socket limits */ ++ ++#define vx_sock_inc(s) \ ++ vx_acc_cres((s)->sk_vx_info, 1, s, VLIMIT_NSOCK) ++ ++#define vx_sock_dec(s) \ ++ vx_acc_cres((s)->sk_vx_info,-1, s, VLIMIT_NSOCK) ++ ++#define vx_sock_avail(n) \ ++ vx_cres_avail(current->vx_info, n, VLIMIT_NSOCK) ++ ++ ++/* ipc resource limits */ ++ ++#define vx_ipcmsg_add(v,u,a) \ ++ vx_add_cres(v, a, u, RLIMIT_MSGQUEUE) ++ ++#define vx_ipcmsg_sub(v,u,a) \ ++ vx_sub_cres(v, a, u, RLIMIT_MSGQUEUE) ++ ++#define vx_ipcmsg_avail(v,a) \ ++ vx_cres_avail(v, a, RLIMIT_MSGQUEUE) ++ ++ ++#define vx_ipcshm_add(v,k,a) \ ++ vx_add_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM) ++ ++#define vx_ipcshm_sub(v,k,a) \ ++ vx_sub_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM) ++ ++#define vx_ipcshm_avail(v,a) \ ++ vx_cres_avail(v, a, VLIMIT_SHMEM) ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_memory.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_memory.h +@@ -0,0 +1,114 @@ ++#ifndef _VX_VS_MEMORY_H ++#define _VX_VS_MEMORY_H ++ ++#include <linux/config.h> ++#include "vserver/limit.h" ++#include "vserver/debug.h" ++#include "vserver/limit_int.h" ++ ++ ++#define __vx_add_long(a,v) (*(v) += (a)) ++#define __vx_inc_long(v) (++*(v)) ++#define __vx_dec_long(v) (--*(v)) ++ ++#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS ++#ifdef ATOMIC64_INIT ++#define __vx_add_value(a,v) atomic64_add(a, v) ++#define __vx_inc_value(v) atomic64_inc(v) ++#define __vx_dec_value(v) atomic64_dec(v) ++#else /* !ATOMIC64_INIT */ ++#define __vx_add_value(a,v) atomic_add(a, v) ++#define __vx_inc_value(v) atomic_inc(v) ++#define __vx_dec_value(v) atomic_dec(v) ++#endif /* !ATOMIC64_INIT */ ++#else /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ ++#define __vx_add_value(a,v) __vx_add_long(a,v) ++#define __vx_inc_value(v) __vx_inc_long(v) ++#define __vx_dec_value(v) __vx_dec_long(v) ++#endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */ ++ ++ ++#define vx_acc_page(m,d,v,r) do { \ ++ if ((d) > 0) \ ++ __vx_inc_long(&(m->v)); \ ++ else \ ++ __vx_dec_long(&(m->v)); \ ++ __vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__); \ ++} while (0) ++ ++#define vx_acc_page_atomic(m,d,v,r) do { \ ++ if ((d) > 0) \ ++ __vx_inc_value(&(m->v)); \ ++ else \ ++ __vx_dec_value(&(m->v)); \ ++ __vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__); \ ++} while (0) ++ ++ ++#define vx_acc_pages(m,p,v,r) do { \ ++ unsigned long __p = (p); \ ++ __vx_add_long(__p, &(m->v)); \ ++ __vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__); \ ++} while (0) ++ ++#define vx_acc_pages_atomic(m,p,v,r) do { \ ++ unsigned long __p = (p); \ ++ __vx_add_value(__p, &(m->v)); \ ++ __vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__); \ ++} while (0) ++ ++ ++ ++#define vx_acc_vmpage(m,d) \ ++ vx_acc_page(m, d, total_vm, RLIMIT_AS) ++#define vx_acc_vmlpage(m,d) \ ++ vx_acc_page(m, d, locked_vm, RLIMIT_MEMLOCK) ++#define vx_acc_file_rsspage(m,d) \ ++ vx_acc_page_atomic(m, d, _file_rss, RLIMIT_RSS) ++#define vx_acc_anon_rsspage(m,d) \ ++ vx_acc_page_atomic(m, d, _anon_rss, VLIMIT_ANON) ++ ++#define vx_acc_vmpages(m,p) \ ++ vx_acc_pages(m, p, total_vm, RLIMIT_AS) ++#define vx_acc_vmlpages(m,p) \ ++ vx_acc_pages(m, p, locked_vm, RLIMIT_MEMLOCK) ++#define vx_acc_file_rsspages(m,p) \ ++ vx_acc_pages_atomic(m, p, _file_rss, RLIMIT_RSS) ++#define vx_acc_anon_rsspages(m,p) \ ++ vx_acc_pages_atomic(m, p, _anon_rss, VLIMIT_ANON) ++ ++#define vx_pages_add(s,r,p) __vx_add_cres(s, r, p, 0, __FILE__, __LINE__) ++#define vx_pages_sub(s,r,p) vx_pages_add(s, r, -(p)) ++ ++#define vx_vmpages_inc(m) vx_acc_vmpage(m, 1) ++#define vx_vmpages_dec(m) vx_acc_vmpage(m,-1) ++#define vx_vmpages_add(m,p) vx_acc_vmpages(m, p) ++#define vx_vmpages_sub(m,p) vx_acc_vmpages(m,-(p)) ++ ++#define vx_vmlocked_inc(m) vx_acc_vmlpage(m, 1) ++#define vx_vmlocked_dec(m) vx_acc_vmlpage(m,-1) ++#define vx_vmlocked_add(m,p) vx_acc_vmlpages(m, p) ++#define vx_vmlocked_sub(m,p) vx_acc_vmlpages(m,-(p)) ++ ++#define vx_file_rsspages_inc(m) vx_acc_file_rsspage(m, 1) ++#define vx_file_rsspages_dec(m) vx_acc_file_rsspage(m,-1) ++#define vx_file_rsspages_add(m,p) vx_acc_file_rsspages(m, p) ++#define vx_file_rsspages_sub(m,p) vx_acc_file_rsspages(m,-(p)) ++ ++#define vx_anon_rsspages_inc(m) vx_acc_anon_rsspage(m, 1) ++#define vx_anon_rsspages_dec(m) vx_acc_anon_rsspage(m,-1) ++#define vx_anon_rsspages_add(m,p) vx_acc_anon_rsspages(m, p) ++#define vx_anon_rsspages_sub(m,p) vx_acc_anon_rsspages(m,-(p)) ++ ++ ++#define vx_pages_avail(m,p,r) \ ++ __vx_cres_avail((m)->mm_vx_info, r, p, __FILE__, __LINE__) ++ ++#define vx_vmpages_avail(m,p) vx_pages_avail(m, p, RLIMIT_AS) ++#define vx_vmlocked_avail(m,p) vx_pages_avail(m, p, RLIMIT_MEMLOCK) ++#define vx_rsspages_avail(m,p) vx_pages_avail(m, p, RLIMIT_RSS) ++#define vx_anonpages_avail(m,p) vx_pages_avail(m, p, VLIMIT_ANON) ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_network.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_network.h +@@ -0,0 +1,209 @@ ++#ifndef _NX_VS_NETWORK_H ++#define _NX_VS_NETWORK_H ++ ++#include "vserver/network.h" ++#include "vserver/debug.h" ++ ++ ++#define get_nx_info(i) __get_nx_info(i,__FILE__,__LINE__) ++ ++static inline struct nx_info *__get_nx_info(struct nx_info *nxi, ++ const char *_file, int _line) ++{ ++ if (!nxi) ++ return NULL; ++ ++ vxlprintk(VXD_CBIT(nid, 2), "get_nx_info(%p[#%d.%d])", ++ nxi, nxi?nxi->nx_id:0, nxi?atomic_read(&nxi->nx_usecnt):0, ++ _file, _line); ++ ++ atomic_inc(&nxi->nx_usecnt); ++ return nxi; ++} ++ ++ ++extern void free_nx_info(struct nx_info *); ++ ++#define put_nx_info(i) __put_nx_info(i,__FILE__,__LINE__) ++ ++static inline void __put_nx_info(struct nx_info *nxi, const char *_file, int _line) ++{ ++ if (!nxi) ++ return; ++ ++ vxlprintk(VXD_CBIT(nid, 2), "put_nx_info(%p[#%d.%d])", ++ nxi, nxi?nxi->nx_id:0, nxi?atomic_read(&nxi->nx_usecnt):0, ++ _file, _line); ++ ++ if (atomic_dec_and_test(&nxi->nx_usecnt)) ++ free_nx_info(nxi); ++} ++ ++ ++#define init_nx_info(p,i) __init_nx_info(p,i,__FILE__,__LINE__) ++ ++static inline void __init_nx_info(struct nx_info **nxp, struct nx_info *nxi, ++ const char *_file, int _line) ++{ ++ if (nxi) { ++ vxlprintk(VXD_CBIT(nid, 3), ++ "init_nx_info(%p[#%d.%d])", ++ nxi, nxi?nxi->nx_id:0, ++ nxi?atomic_read(&nxi->nx_usecnt):0, ++ _file, _line); ++ ++ atomic_inc(&nxi->nx_usecnt); ++ } ++ *nxp = nxi; ++} ++ ++ ++#define set_nx_info(p,i) __set_nx_info(p,i,__FILE__,__LINE__) ++ ++static inline void __set_nx_info(struct nx_info **nxp, struct nx_info *nxi, ++ const char *_file, int _line) ++{ ++ struct nx_info *nxo; ++ ++ if (!nxi) ++ return; ++ ++ vxlprintk(VXD_CBIT(nid, 3), "set_nx_info(%p[#%d.%d])", ++ nxi, nxi?nxi->nx_id:0, ++ nxi?atomic_read(&nxi->nx_usecnt):0, ++ _file, _line); ++ ++ atomic_inc(&nxi->nx_usecnt); ++ nxo = xchg(nxp, nxi); ++ BUG_ON(nxo); ++} ++ ++#define clr_nx_info(p) __clr_nx_info(p,__FILE__,__LINE__) ++ ++static inline void __clr_nx_info(struct nx_info **nxp, ++ const char *_file, int _line) ++{ ++ struct nx_info *nxo; ++ ++ nxo = xchg(nxp, NULL); ++ if (!nxo) ++ return; ++ ++ vxlprintk(VXD_CBIT(nid, 3), "clr_nx_info(%p[#%d.%d])", ++ nxo, nxo?nxo->nx_id:0, ++ nxo?atomic_read(&nxo->nx_usecnt):0, ++ _file, _line); ++ ++ if (atomic_dec_and_test(&nxo->nx_usecnt)) ++ free_nx_info(nxo); ++} ++ ++ ++#define claim_nx_info(v,p) __claim_nx_info(v,p,__FILE__,__LINE__) ++ ++static inline void __claim_nx_info(struct nx_info *nxi, ++ struct task_struct *task, const char *_file, int _line) ++{ ++ vxlprintk(VXD_CBIT(nid, 3), "claim_nx_info(%p[#%d.%d.%d]) %p", ++ nxi, nxi?nxi->nx_id:0, ++ nxi?atomic_read(&nxi->nx_usecnt):0, ++ nxi?atomic_read(&nxi->nx_tasks):0, ++ task, _file, _line); ++ ++ atomic_inc(&nxi->nx_tasks); ++} ++ ++ ++extern void unhash_nx_info(struct nx_info *); ++ ++#define release_nx_info(v,p) __release_nx_info(v,p,__FILE__,__LINE__) ++ ++static inline void __release_nx_info(struct nx_info *nxi, ++ struct task_struct *task, const char *_file, int _line) ++{ ++ vxlprintk(VXD_CBIT(nid, 3), "release_nx_info(%p[#%d.%d.%d]) %p", ++ nxi, nxi?nxi->nx_id:0, ++ nxi?atomic_read(&nxi->nx_usecnt):0, ++ nxi?atomic_read(&nxi->nx_tasks):0, ++ task, _file, _line); ++ ++ might_sleep(); ++ ++ if (atomic_dec_and_test(&nxi->nx_tasks)) ++ unhash_nx_info(nxi); ++} ++ ++ ++#define task_get_nx_info(i) __task_get_nx_info(i,__FILE__,__LINE__) ++ ++static __inline__ struct nx_info *__task_get_nx_info(struct task_struct *p, ++ const char *_file, int _line) ++{ ++ struct nx_info *nxi; ++ ++ task_lock(p); ++ vxlprintk(VXD_CBIT(nid, 5), "task_get_nx_info(%p)", ++ p, _file, _line); ++ nxi = __get_nx_info(p->nx_info, _file, _line); ++ task_unlock(p); ++ return nxi; ++} ++ ++ ++#define nx_task_nid(t) ((t)->nid) ++ ++#define nx_current_nid() nx_task_nid(current) ++ ++#define nx_check(c,m) __nx_check(nx_current_nid(),c,m) ++ ++#define nx_weak_check(c,m) ((m) ? nx_check(c,m) : 1) ++ ++ ++#define __nx_state(v) ((v) ? ((v)->nx_state) : 0) ++ ++#define nx_info_state(v,m) (__nx_state(v) & (m)) ++ ++ ++#define __nx_flags(v) ((v) ? (v)->nx_flags : 0) ++ ++#define nx_current_flags() __nx_flags(current->nx_info) ++ ++#define nx_info_flags(v,m,f) \ ++ vx_check_flags(__nx_flags(v),(m),(f)) ++ ++#define task_nx_flags(t,m,f) \ ++ ((t) && nx_info_flags((t)->nx_info, (m), (f))) ++ ++#define nx_flags(m,f) nx_info_flags(current->nx_info,(m),(f)) ++ ++ ++/* context caps */ ++ ++#define __nx_ncaps(v) ((v) ? (v)->nx_ncaps : 0) ++ ++#define nx_current_ncaps() __nx_ncaps(current->nx_info) ++ ++#define nx_info_ncaps(v,c) (__nx_ncaps(v) & (c)) ++ ++#define nx_ncaps(c) nx_info_ncaps(current->nx_info,(c)) ++ ++ ++static inline int addr_in_nx_info(struct nx_info *nxi, uint32_t addr) ++{ ++ int n,i; ++ ++ if (!nxi) ++ return 1; ++ ++ n = nxi->nbipv4; ++ for (i=0; i<n; i++) { ++ if (nxi->ipv4[i] == addr) ++ return 1; ++ } ++ return 0; ++} ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_sched.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_sched.h +@@ -0,0 +1,93 @@ ++#ifndef _VX_VS_SCHED_H ++#define _VX_VS_SCHED_H ++ ++#include <linux/config.h> ++#include "vserver/sched.h" ++ ++ ++#define VAVAVOOM_RATIO 50 ++ ++#define MAX_PRIO_BIAS 20 ++#define MIN_PRIO_BIAS -20 ++ ++ ++static inline int vx_tokens_avail(struct vx_info *vxi) ++{ ++ return atomic_read(&vxi->sched.tokens); ++} ++ ++static inline void vx_consume_token(struct vx_info *vxi) ++{ ++ atomic_dec(&vxi->sched.tokens); ++} ++ ++static inline int vx_need_resched(struct task_struct *p) ++{ ++#ifdef CONFIG_VSERVER_HARDCPU ++ struct vx_info *vxi = p->vx_info; ++#endif ++ int slice = --p->time_slice; ++ ++#ifdef CONFIG_VSERVER_HARDCPU ++ if (vxi) { ++ int tokens; ++ ++ if ((tokens = vx_tokens_avail(vxi)) > 0) ++ vx_consume_token(vxi); ++ /* for tokens > 0, one token was consumed */ ++ if (tokens < 2) ++ return 1; ++ } ++#endif ++ return (slice == 0); ++} ++ ++ ++static inline void vx_onhold_inc(struct vx_info *vxi) ++{ ++ int onhold = atomic_read(&vxi->cvirt.nr_onhold); ++ ++ atomic_inc(&vxi->cvirt.nr_onhold); ++ if (!onhold) ++ vxi->cvirt.onhold_last = jiffies; ++} ++ ++static inline void __vx_onhold_update(struct vx_info *vxi) ++{ ++ int cpu = smp_processor_id(); ++ uint32_t now = jiffies; ++ uint32_t delta = now - vxi->cvirt.onhold_last; ++ ++ vxi->cvirt.onhold_last = now; ++ vxi->sched.cpu[cpu].hold_ticks += delta; ++} ++ ++static inline void vx_onhold_dec(struct vx_info *vxi) ++{ ++ if (atomic_dec_and_test(&vxi->cvirt.nr_onhold)) ++ __vx_onhold_update(vxi); ++} ++ ++static inline void vx_account_user(struct vx_info *vxi, ++ cputime_t cputime, int nice) ++{ ++ int cpu = smp_processor_id(); ++ ++ if (!vxi) ++ return; ++ vxi->sched.cpu[cpu].user_ticks += cputime; ++} ++ ++static inline void vx_account_system(struct vx_info *vxi, ++ cputime_t cputime, int idle) ++{ ++ int cpu = smp_processor_id(); ++ ++ if (!vxi) ++ return; ++ vxi->sched.cpu[cpu].sys_ticks += cputime; ++} ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vs_socket.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vs_socket.h +@@ -0,0 +1,57 @@ ++#ifndef _VX_VS_SOCKET_H ++#define _VX_VS_SOCKET_H ++ ++#include "vserver/debug.h" ++ ++ ++/* socket accounting */ ++ ++#include <linux/socket.h> ++ ++static inline int vx_sock_type(int family) ++{ ++ int type = 4; ++ ++ if (family > 0 && family < 3) ++ type = family; ++ else if (family == PF_INET6) ++ type = 3; ++ return type; ++} ++ ++#define vx_acc_sock(v,f,p,s) \ ++ __vx_acc_sock((v), (f), (p), (s), __FILE__, __LINE__) ++ ++static inline void __vx_acc_sock(struct vx_info *vxi, ++ int family, int pos, int size, char *file, int line) ++{ ++ if (vxi) { ++ int type = vx_sock_type(family); ++ ++ atomic_inc(&vxi->cacct.sock[type][pos].count); ++ atomic_add(size, &vxi->cacct.sock[type][pos].total); ++ } ++} ++ ++#define vx_sock_recv(sk,s) \ ++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 0, (s)) ++#define vx_sock_send(sk,s) \ ++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 1, (s)) ++#define vx_sock_fail(sk,s) \ ++ vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 2, (s)) ++ ++ ++#define sock_vx_init(s) do { \ ++ (s)->sk_xid = 0; \ ++ (s)->sk_vx_info = NULL; \ ++ } while (0) ++ ++#define sock_nx_init(s) do { \ ++ (s)->sk_nid = 0; \ ++ (s)->sk_nx_info = NULL; \ ++ } while (0) ++ ++ ++#else ++#warning duplicate inclusion ++#endif +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/context.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/context.h +@@ -0,0 +1,162 @@ ++#ifndef _VX_CONTEXT_H ++#define _VX_CONTEXT_H ++ ++#include <linux/config.h> ++#include <linux/types.h> ++ ++ ++#define MAX_S_CONTEXT 65535 /* Arbitrary limit */ ++#define MIN_D_CONTEXT 49152 /* dynamic contexts start here */ ++ ++#define VX_DYNAMIC_ID ((uint32_t)-1) /* id for dynamic context */ ++ ++/* context flags */ ++ ++#define VXF_INFO_LOCK 0x00000001 ++#define VXF_INFO_SCHED 0x00000002 ++#define VXF_INFO_NPROC 0x00000004 ++#define VXF_INFO_PRIVATE 0x00000008 ++ ++#define VXF_INFO_INIT 0x00000010 ++#define VXF_INFO_HIDE 0x00000020 ++#define VXF_INFO_ULIMIT 0x00000040 ++#define VXF_INFO_NSPACE 0x00000080 ++ ++#define VXF_SCHED_HARD 0x00000100 ++#define VXF_SCHED_PRIO 0x00000200 ++#define VXF_SCHED_PAUSE 0x00000400 ++ ++#define VXF_VIRT_MEM 0x00010000 ++#define VXF_VIRT_UPTIME 0x00020000 ++#define VXF_VIRT_CPU 0x00040000 ++#define VXF_VIRT_LOAD 0x00080000 ++ ++#define VXF_HIDE_MOUNT 0x01000000 ++#define VXF_HIDE_NETIF 0x02000000 ++ ++#define VXF_STATE_SETUP (1ULL<<32) ++#define VXF_STATE_INIT (1ULL<<33) ++ ++#define VXF_STATE_HELPER (1ULL<<36) ++ ++#define VXF_FORK_RSS (1ULL<<48) ++#define VXF_PROLIFIC (1ULL<<49) ++ ++#define VXF_IGNEG_NICE (1ULL<<52) ++ ++#define VXF_ONE_TIME (0x0003ULL<<32) ++ ++#define VXF_INIT_SET (VXF_STATE_SETUP|VXF_STATE_INIT) ++ ++ ++/* context caps */ ++ ++#define VXC_CAP_MASK 0x00000000 ++ ++#define VXC_SET_UTSNAME 0x00000001 ++#define VXC_SET_RLIMIT 0x00000002 ++ ++#define VXC_RAW_ICMP 0x00000100 ++#define VXC_SYSLOG 0x00001000 ++ ++#define VXC_SECURE_MOUNT 0x00010000 ++#define VXC_SECURE_REMOUNT 0x00020000 ++#define VXC_BINARY_MOUNT 0x00040000 ++ ++#define VXC_QUOTA_CTL 0x00100000 ++ ++ ++/* context state changes */ ++ ++enum { ++ VSC_STARTUP = 1, ++ VSC_SHUTDOWN, ++ ++ VSC_NETUP, ++ VSC_NETDOWN, ++}; ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/list.h> ++#include <linux/spinlock.h> ++#include <linux/rcupdate.h> ++ ++#include "limit_def.h" ++#include "sched_def.h" ++#include "cvirt_def.h" ++ ++struct vx_info { ++ struct hlist_node vx_hlist; /* linked list of contexts */ ++ xid_t vx_id; /* context id */ ++ atomic_t vx_usecnt; /* usage count */ ++ atomic_t vx_tasks; /* tasks count */ ++ struct vx_info *vx_parent; /* parent context */ ++ int vx_state; /* context state */ ++ ++ struct namespace *vx_namespace; /* private namespace */ ++ struct fs_struct *vx_fs; /* private namespace fs */ ++ uint64_t vx_flags; /* context flags */ ++ uint64_t vx_bcaps; /* bounding caps (system) */ ++ uint64_t vx_ccaps; /* context caps (vserver) */ ++ ++ pid_t vx_initpid; /* PID of fake init process */ ++ ++ wait_queue_head_t vx_wait; /* context exit waitqueue */ ++ ++ struct _vx_limit limit; /* vserver limits */ ++ struct _vx_sched sched; /* vserver scheduler */ ++ struct _vx_cvirt cvirt; /* virtual/bias stuff */ ++ struct _vx_cacct cacct; /* context accounting */ ++ ++ char vx_name[65]; /* vserver name */ ++}; ++ ++ ++/* status flags */ ++ ++#define VXS_HASHED 0x0001 ++#define VXS_PAUSED 0x0010 ++#define VXS_ONHOLD 0x0020 ++#define VXS_SHUTDOWN 0x0100 ++#define VXS_RELEASED 0x8000 ++ ++/* check conditions */ ++ ++#define VX_ADMIN 0x0001 ++#define VX_WATCH 0x0002 ++#define VX_HIDE 0x0004 ++#define VX_HOSTID 0x0008 ++ ++#define VX_IDENT 0x0010 ++#define VX_EQUIV 0x0020 ++#define VX_PARENT 0x0040 ++#define VX_CHILD 0x0080 ++ ++#define VX_ARG_MASK 0x00F0 ++ ++#define VX_DYNAMIC 0x0100 ++#define VX_STATIC 0x0200 ++ ++#define VX_ATR_MASK 0x0F00 ++ ++ ++extern void claim_vx_info(struct vx_info *, struct task_struct *); ++extern void release_vx_info(struct vx_info *, struct task_struct *); ++ ++extern struct vx_info *locate_vx_info(int); ++extern struct vx_info *locate_or_create_vx_info(int); ++ ++extern int get_xid_list(int, unsigned int *, int); ++extern int xid_is_hashed(xid_t); ++ ++extern int vx_migrate_task(struct task_struct *, struct vx_info *); ++ ++extern long vs_state_change(struct vx_info *, unsigned int); ++ ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_CONTEXT_H */ ++#warning duplicate inclusion ++#endif /* _VX_CONTEXT_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/context_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/context_cmd.h +@@ -0,0 +1,79 @@ ++#ifndef _VX_CONTEXT_CMD_H ++#define _VX_CONTEXT_CMD_H ++ ++ ++/* vinfo commands */ ++ ++#define VCMD_task_xid VC_CMD(VINFO, 1, 0) ++ ++#ifdef __KERNEL__ ++extern int vc_task_xid(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++#define VCMD_vx_info VC_CMD(VINFO, 5, 0) ++ ++struct vcmd_vx_info_v0 { ++ uint32_t xid; ++ uint32_t initpid; ++ /* more to come */ ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_vx_info(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* context commands */ ++ ++#define VCMD_ctx_create_v0 VC_CMD(VPROC, 1, 0) ++#define VCMD_ctx_create VC_CMD(VPROC, 1, 1) ++ ++struct vcmd_ctx_create { ++ uint64_t flagword; ++}; ++ ++#define VCMD_ctx_migrate VC_CMD(PROCMIG, 1, 0) ++ ++#ifdef __KERNEL__ ++extern int vc_ctx_create(uint32_t, void __user *); ++extern int vc_ctx_migrate(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* flag commands */ ++ ++#define VCMD_get_cflags VC_CMD(FLAGS, 1, 0) ++#define VCMD_set_cflags VC_CMD(FLAGS, 2, 0) ++ ++struct vcmd_ctx_flags_v0 { ++ uint64_t flagword; ++ uint64_t mask; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_get_cflags(uint32_t, void __user *); ++extern int vc_set_cflags(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* context caps commands */ ++ ++#define VCMD_get_ccaps VC_CMD(FLAGS, 3, 0) ++#define VCMD_set_ccaps VC_CMD(FLAGS, 4, 0) ++ ++struct vcmd_ctx_caps_v0 { ++ uint64_t bcaps; ++ uint64_t ccaps; ++ uint64_t cmask; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_get_ccaps(uint32_t, void __user *); ++extern int vc_set_ccaps(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_CONTEXT_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/cvirt.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/cvirt.h +@@ -0,0 +1,26 @@ ++#ifndef _VX_CVIRT_H ++#define _VX_CVIRT_H ++ ++ ++#ifdef __KERNEL__ ++ ++struct timespec; ++ ++void vx_vsi_uptime(struct timespec *, struct timespec *); ++ ++ ++struct vx_info; ++ ++void vx_update_load(struct vx_info *); ++ ++ ++int vx_uts_virt_handler(struct ctl_table *ctl, int write, xid_t xid, ++ void **datap, size_t *lenp); ++ ++ ++int vx_do_syslog(int, char __user *, int); ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_CVIRT_H */ ++#warning duplicate inclusion ++#endif /* _VX_CVIRT_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/cvirt_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/cvirt_cmd.h +@@ -0,0 +1,35 @@ ++#ifndef _VX_CVIRT_CMD_H ++#define _VX_CVIRT_CMD_H ++ ++ ++/* virtual host info name commands */ ++ ++#define VCMD_set_vhi_name VC_CMD(VHOST, 1, 0) ++#define VCMD_get_vhi_name VC_CMD(VHOST, 2, 0) ++ ++struct vcmd_vhi_name_v0 { ++ uint32_t field; ++ char name[65]; ++}; ++ ++ ++enum vhi_name_field { ++ VHIN_CONTEXT=0, ++ VHIN_SYSNAME, ++ VHIN_NODENAME, ++ VHIN_RELEASE, ++ VHIN_VERSION, ++ VHIN_MACHINE, ++ VHIN_DOMAINNAME, ++}; ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/compiler.h> ++ ++extern int vc_set_vhi_name(uint32_t, void __user *); ++extern int vc_get_vhi_name(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_CVIRT_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/cvirt_def.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/cvirt_def.h +@@ -0,0 +1,78 @@ ++#ifndef _VX_CVIRT_DEF_H ++#define _VX_CVIRT_DEF_H ++ ++#include <linux/config.h> ++#include <linux/jiffies.h> ++#include <linux/utsname.h> ++#include <linux/spinlock.h> ++#include <linux/wait.h> ++#include <linux/time.h> ++#include <asm/atomic.h> ++ ++ ++struct _vx_usage_stat { ++ uint64_t user; ++ uint64_t nice; ++ uint64_t system; ++ uint64_t softirq; ++ uint64_t irq; ++ uint64_t idle; ++ uint64_t iowait; ++}; ++ ++struct _vx_syslog { ++ wait_queue_head_t log_wait; ++ spinlock_t logbuf_lock; /* lock for the log buffer */ ++ ++ unsigned long log_start; /* next char to be read by syslog() */ ++ unsigned long con_start; /* next char to be sent to consoles */ ++ unsigned long log_end; /* most-recently-written-char + 1 */ ++ unsigned long logged_chars; /* #chars since last read+clear operation */ ++ ++ char log_buf[1024]; ++}; ++ ++ ++/* context sub struct */ ++ ++struct _vx_cvirt { ++ int max_threads; /* maximum allowed threads */ ++ atomic_t nr_threads; /* number of current threads */ ++ atomic_t nr_running; /* number of running threads */ ++ atomic_t nr_uninterruptible; /* number of uninterruptible threads */ ++ ++ atomic_t nr_onhold; /* processes on hold */ ++ uint32_t onhold_last; /* jiffies when put on hold */ ++ ++ struct timespec bias_idle; ++ struct timespec bias_uptime; /* context creation point */ ++ uint64_t bias_clock; /* offset in clock_t */ ++ ++ struct new_utsname utsname; ++ ++ spinlock_t load_lock; /* lock for the load averages */ ++ atomic_t load_updates; /* nr of load updates done so far */ ++ uint32_t load_last; /* last time load was cacled */ ++ uint32_t load[3]; /* load averages 1,5,15 */ ++ ++ atomic_t total_forks; /* number of forks so far */ ++ ++ struct _vx_usage_stat cpustat[NR_CPUS]; ++ ++ struct _vx_syslog syslog; ++}; ++ ++struct _vx_sock_acc { ++ atomic_t count; ++ atomic_t total; ++}; ++ ++/* context sub struct */ ++ ++struct _vx_cacct { ++ unsigned long total_forks; ++ ++ struct _vx_sock_acc sock[5][3]; ++}; ++ ++#endif /* _VX_CVIRT_DEF_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/debug.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/debug.h +@@ -0,0 +1,273 @@ ++#ifndef _VX_DEBUG_H ++#define _VX_DEBUG_H ++ ++#include <linux/config.h> ++ ++ ++#define VXD_CBIT(n,m) (vx_debug_ ## n & (1 << (m))) ++#define VXD_CMIN(n,m) (vx_debug_ ## n > (m)) ++#define VXD_MASK(n,m) (vx_debug_ ## n & (m)) ++ ++#define VXD_QPOS(v,p) (((uint32_t)(v) >> ((p)*8)) & 0xFF) ++#define VXD_QUAD(v) VXD_QPOS(v,0), VXD_QPOS(v,1), \ ++ VXD_QPOS(v,2), VXD_QPOS(v,3) ++#define VXF_QUAD "%u.%u.%u.%u" ++ ++#define VXD_DEV(d) (d), (d)->bd_inode->i_ino, \ ++ imajor((d)->bd_inode), iminor((d)->bd_inode) ++#define VXF_DEV "%p[%lu,%d:%d]" ++ ++ ++#define __FUNC__ __func__ ++ ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ ++extern unsigned int vx_debug_switch; ++extern unsigned int vx_debug_xid; ++extern unsigned int vx_debug_nid; ++extern unsigned int vx_debug_net; ++extern unsigned int vx_debug_limit; ++extern unsigned int vx_debug_dlim; ++extern unsigned int vx_debug_cvirt; ++extern unsigned int vx_debug_misc; ++ ++ ++#define VX_LOGLEVEL "vxD: " ++#define VX_WARNLEVEL KERN_WARNING "vxW: " ++ ++#define vxdprintk(c,f,x...) \ ++ do { \ ++ if (c) \ ++ printk(VX_LOGLEVEL f "\n" , ##x); \ ++ } while (0) ++ ++#define vxlprintk(c,f,x...) \ ++ do { \ ++ if (c) \ ++ printk(VX_LOGLEVEL f " @%s:%d\n", x); \ ++ } while (0) ++ ++#define vxfprintk(c,f,x...) \ ++ do { \ ++ if (c) \ ++ printk(VX_LOGLEVEL f " %s@%s:%d\n", x); \ ++ } while (0) ++ ++ ++#define vxwprintk(c,f,x...) \ ++ do { \ ++ if (c) \ ++ printk(VX_WARNLEVEL f "\n" , ##x); \ ++ } while (0) ++ ++ ++#define vxd_path(d,m) \ ++ ({ static char _buffer[PATH_MAX]; \ ++ d_path((d), (m), _buffer, sizeof(_buffer)); }) ++ ++#else /* CONFIG_VSERVER_DEBUG */ ++ ++#define vx_debug_switch 0 ++#define vx_debug_xid 0 ++#define vx_debug_nid 0 ++#define vx_debug_net 0 ++#define vx_debug_limit 0 ++#define vx_debug_dlim 0 ++#define vx_debug_cvirt 0 ++ ++#define vxdprintk(x...) do { } while (0) ++#define vxlprintk(x...) do { } while (0) ++#define vxfprintk(x...) do { } while (0) ++#define vxwprintk(x...) do { } while (0) ++ ++#define vxd_path "<none>" ++ ++#endif /* CONFIG_VSERVER_DEBUG */ ++ ++ ++/* history stuff */ ++ ++#ifdef CONFIG_VSERVER_HISTORY ++ ++ ++extern unsigned volatile int vxh_active; ++ ++struct _vxhe_vxi { ++ struct vx_info *ptr; ++ unsigned xid; ++ unsigned usecnt; ++ unsigned tasks; ++}; ++ ++struct _vxhe_set_clr { ++ void *data; ++}; ++ ++struct _vxhe_loc_lookup { ++ unsigned arg; ++}; ++ ++enum { ++ VXH_UNUSED=0, ++ VXH_THROW_OOPS=1, ++ ++ VXH_GET_VX_INFO, ++ VXH_PUT_VX_INFO, ++ VXH_INIT_VX_INFO, ++ VXH_SET_VX_INFO, ++ VXH_CLR_VX_INFO, ++ VXH_CLAIM_VX_INFO, ++ VXH_RELEASE_VX_INFO, ++ VXH_ALLOC_VX_INFO, ++ VXH_DEALLOC_VX_INFO, ++ VXH_HASH_VX_INFO, ++ VXH_UNHASH_VX_INFO, ++ VXH_LOC_VX_INFO, ++ VXH_LOOKUP_VX_INFO, ++ VXH_CREATE_VX_INFO, ++}; ++ ++struct _vx_hist_entry { ++ void *loc; ++ unsigned short seq; ++ unsigned short type; ++ struct _vxhe_vxi vxi; ++ union { ++ struct _vxhe_set_clr sc; ++ struct _vxhe_loc_lookup ll; ++ }; ++}; ++ ++struct _vx_hist_entry *vxh_advance(void *loc); ++ ++static inline void __vxh_copy_vxi(struct _vx_hist_entry *entry, struct vx_info *vxi) ++{ ++ entry->vxi.ptr = vxi; ++ if (vxi) { ++ entry->vxi.usecnt = atomic_read(&vxi->vx_usecnt); ++ entry->vxi.tasks = atomic_read(&vxi->vx_tasks); ++ entry->vxi.xid = vxi->vx_id; ++ } ++} ++ ++ ++#define VXH_HERE() current_text_addr() ++ ++#define __VXH_BODY(__type, __data) \ ++ struct _vx_hist_entry *entry; \ ++ \ ++ preempt_disable(); \ ++ entry = vxh_advance(VXH_HERE()); \ ++ __data; \ ++ entry->type = __type; \ ++ preempt_enable(); ++ ++ ++ /* pass vxi only */ ++#define __VXH_SIMPLE \ ++ __vxh_copy_vxi(entry, vxi) ++ ++#define VXH_SIMPLE(__name, __type) \ ++static inline void __name(struct vx_info *vxi) \ ++{ \ ++ __VXH_BODY(__type, __VXH_SIMPLE) \ ++} ++ ++ /* pass vxi and data (void *) */ ++#define __VXH_DATA \ ++ __vxh_copy_vxi(entry, vxi); \ ++ entry->sc.data = data ++ ++#define VXH_DATA(__name, __type) \ ++static inline \ ++void __name(struct vx_info *vxi, void *data) \ ++{ \ ++ __VXH_BODY(__type, __VXH_DATA) \ ++} ++ ++ /* pass vxi and arg (long) */ ++#define __VXH_LARG \ ++ __vxh_copy_vxi(entry, vxi); \ ++ entry->ll.arg = arg ++ ++#define VXH_LARG(__name, __type) \ ++static inline \ ++void __name(struct vx_info *vxi, long arg) \ ++{ \ ++ __VXH_BODY(__type, __VXH_LARG) \ ++} ++ ++ ++static inline void vxh_throw_oops(void) ++{ ++ __VXH_BODY(VXH_THROW_OOPS, {}); ++ /* prevent further acquisition */ ++ vxh_active = 0; ++} ++ ++VXH_SIMPLE(vxh_get_vx_info, VXH_GET_VX_INFO); ++VXH_SIMPLE(vxh_put_vx_info, VXH_PUT_VX_INFO); ++ ++VXH_DATA(vxh_init_vx_info, VXH_INIT_VX_INFO); ++VXH_DATA(vxh_set_vx_info, VXH_SET_VX_INFO); ++VXH_DATA(vxh_clr_vx_info, VXH_CLR_VX_INFO); ++ ++VXH_DATA(vxh_claim_vx_info, VXH_CLAIM_VX_INFO); ++VXH_DATA(vxh_release_vx_info, VXH_RELEASE_VX_INFO); ++ ++VXH_SIMPLE(vxh_alloc_vx_info, VXH_ALLOC_VX_INFO); ++VXH_SIMPLE(vxh_dealloc_vx_info, VXH_DEALLOC_VX_INFO); ++ ++VXH_SIMPLE(vxh_hash_vx_info, VXH_HASH_VX_INFO); ++VXH_SIMPLE(vxh_unhash_vx_info, VXH_UNHASH_VX_INFO); ++ ++VXH_LARG(vxh_loc_vx_info, VXH_LOC_VX_INFO); ++VXH_LARG(vxh_lookup_vx_info, VXH_LOOKUP_VX_INFO); ++VXH_LARG(vxh_create_vx_info, VXH_CREATE_VX_INFO); ++ ++extern void vxh_dump_history(void); ++ ++ ++#else /* CONFIG_VSERVER_HISTORY */ ++ ++ ++#define vxh_throw_oops() do { } while (0) ++ ++#define vxh_get_vx_info(v) do { } while (0) ++#define vxh_put_vx_info(v) do { } while (0) ++ ++#define vxh_init_vx_info(v,d) do { } while (0) ++#define vxh_set_vx_info(v,d) do { } while (0) ++#define vxh_clr_vx_info(v,d) do { } while (0) ++ ++#define vxh_claim_vx_info(v,d) do { } while (0) ++#define vxh_release_vx_info(v,d) do { } while (0) ++ ++#define vxh_alloc_vx_info(v) do { } while (0) ++#define vxh_dealloc_vx_info(v) do { } while (0) ++ ++#define vxh_hash_vx_info(v) do { } while (0) ++#define vxh_unhash_vx_info(v) do { } while (0) ++ ++#define vxh_loc_vx_info(a,v) do { } while (0) ++#define vxh_lookup_vx_info(a,v) do { } while (0) ++#define vxh_create_vx_info(a,v) do { } while (0) ++ ++#define vxh_dump_history() do { } while (0) ++ ++ ++#endif /* CONFIG_VSERVER_HISTORY */ ++ ++ ++#ifdef CONFIG_VSERVER_DEBUG ++#define vxd_assert_lock(l) assert_spin_locked(l) ++#define vxd_assert(c,f,x...) vxlprintk(!(c), \ ++ "assertion [" f "] failed.", ##x, __FILE__, __LINE__) ++#else ++#define vxd_assert_lock(l) do { } while (0) ++#define vxd_assert(c,f,x...) do { } while (0) ++#endif ++ ++ ++#endif /* _VX_DEBUG_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/debug_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/debug_cmd.h +@@ -0,0 +1,14 @@ ++#ifndef _VX_DEBUG_CMD_H ++#define _VX_DEBUG_CMD_H ++ ++ ++/* debug commands */ ++ ++#define VCMD_dump_history VC_CMD(DEBUG, 1, 0) ++ ++#ifdef __KERNEL__ ++ ++extern int vc_dump_history(uint32_t); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_DEBUG_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/dlimit.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/dlimit.h +@@ -0,0 +1,53 @@ ++#ifndef _VX_DLIMIT_H ++#define _VX_DLIMIT_H ++ ++#include "switch.h" ++ ++#define CDLIM_UNSET (0ULL) ++#define CDLIM_INFINITY (~0ULL) ++#define CDLIM_KEEP (~1ULL) ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/spinlock.h> ++ ++struct super_block; ++ ++struct dl_info { ++ struct hlist_node dl_hlist; /* linked list of contexts */ ++ struct rcu_head dl_rcu; /* the rcu head */ ++ xid_t dl_xid; /* context id */ ++ atomic_t dl_usecnt; /* usage count */ ++ atomic_t dl_refcnt; /* reference count */ ++ ++ struct super_block *dl_sb; /* associated superblock */ ++ ++ spinlock_t dl_lock; /* protect the values */ ++ ++ uint64_t dl_space_used; /* used space in bytes */ ++ uint64_t dl_space_total; /* maximum space in bytes */ ++ uint32_t dl_inodes_used; /* used inodes */ ++ uint32_t dl_inodes_total; /* maximum inodes */ ++ ++ unsigned int dl_nrlmult; /* non root limit mult */ ++}; ++ ++struct rcu_head; ++ ++extern void rcu_free_dl_info(struct rcu_head *); ++extern void unhash_dl_info(struct dl_info *); ++ ++extern struct dl_info *locate_dl_info(struct super_block *, xid_t); ++ ++ ++struct kstatfs; ++ ++extern void vx_vsi_statfs(struct super_block *, struct kstatfs *); ++ ++typedef uint64_t dlsize_t; ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_DLIMIT_H */ ++#warning duplicate inclusion ++#endif /* _VX_DLIMIT_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/dlimit_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/dlimit_cmd.h +@@ -0,0 +1,71 @@ ++#ifndef _VX_DLIMIT_CMD_H ++#define _VX_DLIMIT_CMD_H ++ ++#include <linux/config.h> ++ ++ ++/* dlimit vserver commands */ ++ ++#define VCMD_add_dlimit VC_CMD(DLIMIT, 1, 0) ++#define VCMD_rem_dlimit VC_CMD(DLIMIT, 2, 0) ++ ++#define VCMD_set_dlimit VC_CMD(DLIMIT, 5, 0) ++#define VCMD_get_dlimit VC_CMD(DLIMIT, 6, 0) ++ ++struct vcmd_ctx_dlimit_base_v0 { ++ const char __user *name; ++ uint32_t flags; ++}; ++ ++struct vcmd_ctx_dlimit_v0 { ++ const char __user *name; ++ uint32_t space_used; /* used space in kbytes */ ++ uint32_t space_total; /* maximum space in kbytes */ ++ uint32_t inodes_used; /* used inodes */ ++ uint32_t inodes_total; /* maximum inodes */ ++ uint32_t reserved; /* reserved for root in % */ ++ uint32_t flags; ++}; ++ ++ ++#ifdef __KERNEL__ ++ ++#ifdef CONFIG_COMPAT ++ ++struct vcmd_ctx_dlimit_base_v0_x32 { ++ compat_uptr_t name_ptr; ++ uint32_t flags; ++}; ++ ++struct vcmd_ctx_dlimit_v0_x32 { ++ compat_uptr_t name_ptr; ++ uint32_t space_used; /* used space in kbytes */ ++ uint32_t space_total; /* maximum space in kbytes */ ++ uint32_t inodes_used; /* used inodes */ ++ uint32_t inodes_total; /* maximum inodes */ ++ uint32_t reserved; /* reserved for root in % */ ++ uint32_t flags; ++}; ++ ++#endif /* CONFIG_COMPAT */ ++ ++#include <linux/compiler.h> ++ ++extern int vc_add_dlimit(uint32_t, void __user *); ++extern int vc_rem_dlimit(uint32_t, void __user *); ++ ++extern int vc_set_dlimit(uint32_t, void __user *); ++extern int vc_get_dlimit(uint32_t, void __user *); ++ ++#ifdef CONFIG_COMPAT ++ ++extern int vc_add_dlimit_x32(uint32_t, void __user *); ++extern int vc_rem_dlimit_x32(uint32_t, void __user *); ++ ++extern int vc_set_dlimit_x32(uint32_t, void __user *); ++extern int vc_get_dlimit_x32(uint32_t, void __user *); ++ ++#endif /* CONFIG_COMPAT */ ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_DLIMIT_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/inode.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/inode.h +@@ -0,0 +1,40 @@ ++#ifndef _VX_INODE_H ++#define _VX_INODE_H ++ ++ ++#define IATTR_XID 0x01000000 ++ ++#define IATTR_ADMIN 0x00000001 ++#define IATTR_WATCH 0x00000002 ++#define IATTR_HIDE 0x00000004 ++#define IATTR_FLAGS 0x00000007 ++ ++#define IATTR_BARRIER 0x00010000 ++#define IATTR_IUNLINK 0x00020000 ++#define IATTR_IMMUTABLE 0x00040000 ++ ++#ifdef __KERNEL__ ++ ++#include <linux/config.h> ++ ++ ++#ifdef CONFIG_VSERVER_PROC_SECURE ++#define IATTR_PROC_DEFAULT ( IATTR_ADMIN | IATTR_HIDE ) ++#define IATTR_PROC_SYMLINK ( IATTR_ADMIN ) ++#else ++#define IATTR_PROC_DEFAULT ( IATTR_ADMIN ) ++#define IATTR_PROC_SYMLINK ( IATTR_ADMIN ) ++#endif ++ ++#define vx_hide_check(c,m) (((m) & IATTR_HIDE) ? vx_check(c,m) : 1) ++ ++#endif /* __KERNEL__ */ ++ ++/* inode ioctls */ ++ ++#define FIOC_GETXFLG _IOR('x', 5, long) ++#define FIOC_SETXFLG _IOW('x', 6, long) ++ ++#else /* _VX_INODE_H */ ++#warning duplicate inclusion ++#endif /* _VX_INODE_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/inode_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/inode_cmd.h +@@ -0,0 +1,61 @@ ++#ifndef _VX_INODE_CMD_H ++#define _VX_INODE_CMD_H ++ ++ ++/* inode vserver commands */ ++ ++#define VCMD_get_iattr_v0 VC_CMD(INODE, 1, 0) ++#define VCMD_set_iattr_v0 VC_CMD(INODE, 2, 0) ++ ++#define VCMD_get_iattr VC_CMD(INODE, 1, 1) ++#define VCMD_set_iattr VC_CMD(INODE, 2, 1) ++ ++struct vcmd_ctx_iattr_v0 { ++ /* device handle in id */ ++ uint64_t ino; ++ uint32_t xid; ++ uint32_t flags; ++ uint32_t mask; ++}; ++ ++struct vcmd_ctx_iattr_v1 { ++ const char __user *name; ++ uint32_t xid; ++ uint32_t flags; ++ uint32_t mask; ++}; ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/config.h> ++ ++ ++#ifdef CONFIG_COMPAT ++ ++struct vcmd_ctx_iattr_v1_x32 { ++ compat_uptr_t name_ptr; ++ uint32_t xid; ++ uint32_t flags; ++ uint32_t mask; ++}; ++ ++#endif /* CONFIG_COMPAT */ ++ ++#include <linux/compiler.h> ++ ++extern int vc_get_iattr_v0(uint32_t, void __user *); ++extern int vc_set_iattr_v0(uint32_t, void __user *); ++ ++extern int vc_get_iattr(uint32_t, void __user *); ++extern int vc_set_iattr(uint32_t, void __user *); ++ ++#ifdef CONFIG_COMPAT ++ ++extern int vc_get_iattr_x32(uint32_t, void __user *); ++extern int vc_set_iattr_x32(uint32_t, void __user *); ++ ++#endif /* CONFIG_COMPAT */ ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_INODE_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/legacy.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/legacy.h +@@ -0,0 +1,49 @@ ++#ifndef _VX_LEGACY_H ++#define _VX_LEGACY_H ++ ++#include "switch.h" ++ ++ ++/* compatibiliy vserver commands */ ++ ++#define VCMD_new_s_context VC_CMD(COMPAT, 1, 1) ++#define VCMD_set_ipv4root VC_CMD(COMPAT, 2, 3) ++ ++#define VCMD_create_context VC_CMD(VSETUP, 1, 0) ++ ++/* compatibiliy vserver arguments */ ++ ++struct vcmd_new_s_context_v1 { ++ uint32_t remove_cap; ++ uint32_t flags; ++}; ++ ++struct vcmd_set_ipv4root_v3 { ++ /* number of pairs in id */ ++ uint32_t broadcast; ++ struct { ++ uint32_t ip; ++ uint32_t mask; ++ } nx_mask_pair[NB_IPV4ROOT]; ++}; ++ ++ ++#define VX_INFO_LOCK 1 /* Can't request a new vx_id */ ++#define VX_INFO_NPROC 4 /* Limit number of processes in a context */ ++#define VX_INFO_PRIVATE 8 /* Noone can join this security context */ ++#define VX_INFO_INIT 16 /* This process wants to become the */ ++ /* logical process 1 of the security */ ++ /* context */ ++#define VX_INFO_HIDEINFO 32 /* Hide some information in /proc */ ++#define VX_INFO_ULIMIT 64 /* Use ulimit of the current process */ ++ /* to become the global limits */ ++ /* of the context */ ++#define VX_INFO_NAMESPACE 128 /* save private namespace */ ++ ++ ++#ifdef __KERNEL__ ++extern int vc_new_s_context(uint32_t, void __user *); ++extern int vc_set_ipv4root(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_LEGACY_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/limit.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/limit.h +@@ -0,0 +1,20 @@ ++#ifndef _VX_LIMIT_H ++#define _VX_LIMIT_H ++ ++ ++#define VLIMIT_NSOCK 16 ++#define VLIMIT_OPENFD 17 ++#define VLIMIT_ANON 18 ++#define VLIMIT_SHMEM 19 ++ ++#ifdef __KERNEL__ ++ ++struct sysinfo; ++ ++void vx_vsi_meminfo(struct sysinfo *); ++void vx_vsi_swapinfo(struct sysinfo *); ++ ++#define NUM_LIMITS 24 ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_LIMIT_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/limit_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/limit_cmd.h +@@ -0,0 +1,37 @@ ++#ifndef _VX_LIMIT_CMD_H ++#define _VX_LIMIT_CMD_H ++ ++ ++/* rlimit vserver commands */ ++ ++#define VCMD_get_rlimit VC_CMD(RLIMIT, 1, 0) ++#define VCMD_set_rlimit VC_CMD(RLIMIT, 2, 0) ++#define VCMD_get_rlimit_mask VC_CMD(RLIMIT, 3, 0) ++ ++struct vcmd_ctx_rlimit_v0 { ++ uint32_t id; ++ uint64_t minimum; ++ uint64_t softlimit; ++ uint64_t maximum; ++}; ++ ++struct vcmd_ctx_rlimit_mask_v0 { ++ uint32_t minimum; ++ uint32_t softlimit; ++ uint32_t maximum; ++}; ++ ++#define CRLIM_UNSET (0ULL) ++#define CRLIM_INFINITY (~0ULL) ++#define CRLIM_KEEP (~1ULL) ++ ++#ifdef __KERNEL__ ++ ++#include <linux/compiler.h> ++ ++extern int vc_get_rlimit(uint32_t, void __user *); ++extern int vc_set_rlimit(uint32_t, void __user *); ++extern int vc_get_rlimit_mask(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_LIMIT_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/limit_def.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/limit_def.h +@@ -0,0 +1,23 @@ ++#ifndef _VX_LIMIT_DEF_H ++#define _VX_LIMIT_DEF_H ++ ++#include <linux/config.h> ++#include <asm/atomic.h> ++#include <asm/resource.h> ++ ++#include "limit.h" ++ ++ ++/* context sub struct */ ++ ++struct _vx_limit { ++ atomic_t ticks; ++ ++ unsigned long rlim[NUM_LIMITS]; /* Context limit */ ++ unsigned long rmax[NUM_LIMITS]; /* Context maximum */ ++ atomic_t rcur[NUM_LIMITS]; /* Current value */ ++ atomic_t lhit[NUM_LIMITS]; /* Limit hits */ ++}; ++ ++ ++#endif /* _VX_LIMIT_DEF_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/limit_int.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/limit_int.h +@@ -0,0 +1,75 @@ ++#ifndef _VX_LIMIT_INT_H ++#define _VX_LIMIT_INT_H ++ ++ ++#ifdef __KERNEL__ ++ ++#define VXD_RLIMIT(r) VXD_CBIT(limit, (r)) ++ ++extern const char *vlimit_name[NUM_LIMITS]; ++ ++static inline void __vx_acc_cres(struct vx_info *vxi, ++ int res, int dir, void *_data, char *_file, int _line) ++{ ++ if (VXD_RLIMIT(res)) ++ vxlprintk(1, "vx_acc_cres[%5d,%s,%2d]: %5d%s (%p)", ++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res, ++ (vxi ? atomic_read(&vxi->limit.rcur[res]) : 0), ++ (dir > 0) ? "++" : "--", _data, _file, _line); ++ if (!vxi) ++ return; ++ ++ if (dir > 0) ++ atomic_inc(&vxi->limit.rcur[res]); ++ else ++ atomic_dec(&vxi->limit.rcur[res]); ++} ++ ++static inline void __vx_add_cres(struct vx_info *vxi, ++ int res, int amount, void *_data, char *_file, int _line) ++{ ++ if (VXD_RLIMIT(res)) ++ vxlprintk(1, "vx_add_cres[%5d,%s,%2d]: %5d += %5d (%p)", ++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res, ++ (vxi ? atomic_read(&vxi->limit.rcur[res]) : 0), ++ amount, _data, _file, _line); ++ if (amount == 0) ++ return; ++ if (!vxi) ++ return; ++ atomic_add(amount, &vxi->limit.rcur[res]); ++} ++ ++static inline int __vx_cres_avail(struct vx_info *vxi, ++ int res, int num, char *_file, int _line) ++{ ++ unsigned long value; ++ ++ if (VXD_RLIMIT(res)) ++ vxlprintk(1, "vx_cres_avail[%5d,%s,%2d]: %5ld > %5d + %5d", ++ (vxi ? vxi->vx_id : -1), vlimit_name[res], res, ++ (vxi ? vxi->limit.rlim[res] : 1), ++ (vxi ? atomic_read(&vxi->limit.rcur[res]) : 0), ++ num, _file, _line); ++ if (num == 0) ++ return 1; ++ if (!vxi) ++ return 1; ++ ++ value = atomic_read(&vxi->limit.rcur[res]); ++ ++ if (value > vxi->limit.rmax[res]) ++ vxi->limit.rmax[res] = value; ++ ++ if (vxi->limit.rlim[res] == RLIM_INFINITY) ++ return 1; ++ ++ if (value + num <= vxi->limit.rlim[res]) ++ return 1; ++ ++ atomic_inc(&vxi->limit.lhit[res]); ++ return 0; ++} ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_LIMIT_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/namespace.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/namespace.h +@@ -0,0 +1,15 @@ ++#ifndef _VX_NAMESPACE_H ++#define _VX_NAMESPACE_H ++ ++ ++#include <linux/types.h> ++ ++struct vx_info; ++struct namespace; ++struct fs_struct; ++ ++extern int vx_set_namespace(struct vx_info *, struct namespace *, struct fs_struct *); ++ ++#else /* _VX_NAMESPACE_H */ ++#warning duplicate inclusion ++#endif /* _VX_NAMESPACE_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/namespace_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/namespace_cmd.h +@@ -0,0 +1,17 @@ ++#ifndef _VX_NAMESPACE_CMD_H ++#define _VX_NAMESPACE_CMD_H ++ ++ ++#define VCMD_enter_namespace VC_CMD(PROCALT, 1, 0) ++#define VCMD_cleanup_namespace VC_CMD(PROCALT, 2, 0) ++#define VCMD_set_namespace VC_CMD(PROCALT, 3, 0) ++ ++ ++#ifdef __KERNEL__ ++ ++extern int vc_enter_namespace(uint32_t, void __user *); ++extern int vc_cleanup_namespace(uint32_t, void __user *); ++extern int vc_set_namespace(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_NAMESPACE_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/network.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/network.h +@@ -0,0 +1,119 @@ ++#ifndef _VX_NETWORK_H ++#define _VX_NETWORK_H ++ ++#include <linux/types.h> ++ ++ ++#define MAX_N_CONTEXT 65535 /* Arbitrary limit */ ++ ++#define NX_DYNAMIC_ID ((uint32_t)-1) /* id for dynamic context */ ++ ++#define NB_IPV4ROOT 16 ++ ++ ++/* network flags */ ++ ++#define NXF_STATE_SETUP (1ULL<<32) ++ ++#define NXF_STATE_HELPER (1ULL<<36) ++ ++#define NXF_ONE_TIME (0x0001ULL<<32) ++ ++#define NXF_INIT_SET (0) ++ ++ ++/* address types */ ++ ++#define NXA_TYPE_IPV4 1 ++#define NXA_TYPE_IPV6 2 ++ ++#define NXA_MOD_BCAST (1<<8) ++ ++#define NXA_TYPE_ANY (~0) ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/list.h> ++#include <linux/spinlock.h> ++#include <linux/rcupdate.h> ++#include <asm/atomic.h> ++ ++ ++struct nx_info { ++ struct hlist_node nx_hlist; /* linked list of nxinfos */ ++ nid_t nx_id; /* vnet id */ ++ atomic_t nx_usecnt; /* usage count */ ++ atomic_t nx_tasks; /* tasks count */ ++ int nx_state; /* context state */ ++ ++ uint64_t nx_flags; /* network flag word */ ++ uint64_t nx_ncaps; /* network capabilities */ ++ ++ int nbipv4; ++ __u32 ipv4[NB_IPV4ROOT]; /* Process can only bind to these IPs */ ++ /* The first one is used to connect */ ++ /* and for bind any service */ ++ /* The other must be used explicity */ ++ __u32 mask[NB_IPV4ROOT]; /* Netmask for each ipv4 */ ++ /* Used to select the proper source */ ++ /* address for sockets */ ++ __u32 v4_bcast; /* Broadcast address to receive UDP */ ++ ++ char nx_name[65]; /* network context name */ ++}; ++ ++ ++/* status flags */ ++ ++#define NXS_HASHED 0x0001 ++#define NXS_SHUTDOWN 0x0100 ++#define NXS_RELEASED 0x8000 ++ ++extern struct nx_info *locate_nx_info(int); ++extern struct nx_info *locate_or_create_nx_info(int); ++ ++extern int get_nid_list(int, unsigned int *, int); ++extern int nid_is_hashed(nid_t); ++ ++extern int nx_migrate_task(struct task_struct *, struct nx_info *); ++ ++extern long vs_net_change(struct nx_info *, unsigned int); ++ ++struct in_ifaddr; ++struct net_device; ++ ++#ifdef CONFIG_INET ++int ifa_in_nx_info(struct in_ifaddr *, struct nx_info *); ++int dev_in_nx_info(struct net_device *, struct nx_info *); ++ ++#else /* CONFIG_INET */ ++static inline ++int ifa_in_nx_info(struct in_ifaddr *a, struct nx_info *n) ++{ ++ return 1; ++} ++ ++static inline ++int dev_in_nx_info(struct net_device *d, struct nx_info *n) ++{ ++ return 1; ++} ++#endif /* CONFIG_INET */ ++ ++struct sock; ++ ++#ifdef CONFIG_INET ++int nx_addr_conflict(struct nx_info *, uint32_t, struct sock *); ++#else /* CONFIG_INET */ ++static inline ++int nx_addr_conflict(struct nx_info *n, uint32_t a, struct sock *s) ++{ ++ return 1; ++} ++#endif /* CONFIG_INET */ ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_NETWORK_H */ ++#warning duplicate inclusion ++#endif /* _VX_NETWORK_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/network_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/network_cmd.h +@@ -0,0 +1,89 @@ ++#ifndef _VX_NETWORK_CMD_H ++#define _VX_NETWORK_CMD_H ++ ++ ++/* vinfo commands */ ++ ++#define VCMD_task_nid VC_CMD(VINFO, 2, 0) ++ ++#ifdef __KERNEL__ ++extern int vc_task_nid(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++#define VCMD_nx_info VC_CMD(VINFO, 6, 0) ++ ++struct vcmd_nx_info_v0 { ++ uint32_t nid; ++ /* more to come */ ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_nx_info(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++#define VCMD_net_create_v0 VC_CMD(VNET, 1, 0) ++#define VCMD_net_create VC_CMD(VNET, 1, 1) ++ ++struct vcmd_net_create { ++ uint64_t flagword; ++}; ++ ++#define VCMD_net_migrate VC_CMD(NETMIG, 1, 0) ++ ++#define VCMD_net_add VC_CMD(NETALT, 1, 0) ++#define VCMD_net_remove VC_CMD(NETALT, 2, 0) ++ ++struct vcmd_net_addr_v0 { ++ uint16_t type; ++ uint16_t count; ++ uint32_t ip[4]; ++ uint32_t mask[4]; ++ /* more to come */ ++}; ++ ++ ++#ifdef __KERNEL__ ++extern int vc_net_create(uint32_t, void __user *); ++extern int vc_net_migrate(uint32_t, void __user *); ++ ++extern int vc_net_add(uint32_t, void __user *); ++extern int vc_net_remove(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* flag commands */ ++ ++#define VCMD_get_nflags VC_CMD(FLAGS, 5, 0) ++#define VCMD_set_nflags VC_CMD(FLAGS, 6, 0) ++ ++struct vcmd_net_flags_v0 { ++ uint64_t flagword; ++ uint64_t mask; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_get_nflags(uint32_t, void __user *); ++extern int vc_set_nflags(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++ ++ ++/* network caps commands */ ++ ++#define VCMD_get_ncaps VC_CMD(FLAGS, 7, 0) ++#define VCMD_set_ncaps VC_CMD(FLAGS, 8, 0) ++ ++struct vcmd_net_caps_v0 { ++ uint64_t ncaps; ++ uint64_t cmask; ++}; ++ ++#ifdef __KERNEL__ ++extern int vc_get_ncaps(uint32_t, void __user *); ++extern int vc_set_ncaps(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_CONTEXT_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/sched.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/sched.h +@@ -0,0 +1,26 @@ ++#ifndef _VX_SCHED_H ++#define _VX_SCHED_H ++ ++ ++#ifdef __KERNEL__ ++ ++struct timespec; ++ ++void vx_vsi_uptime(struct timespec *, struct timespec *); ++ ++ ++struct vx_info; ++ ++void vx_update_load(struct vx_info *); ++ ++ ++struct task_struct; ++ ++int vx_effective_vavavoom(struct vx_info *, int); ++ ++int vx_tokens_recalc(struct vx_info *); ++ ++#endif /* __KERNEL__ */ ++#else /* _VX_SCHED_H */ ++#warning duplicate inclusion ++#endif /* _VX_SCHED_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/sched_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/sched_cmd.h +@@ -0,0 +1,48 @@ ++#ifndef _VX_SCHED_CMD_H ++#define _VX_SCHED_CMD_H ++ ++ ++/* sched vserver commands */ ++ ++#define VCMD_set_sched_v2 VC_CMD(SCHED, 1, 2) ++#define VCMD_set_sched VC_CMD(SCHED, 1, 3) ++ ++struct vcmd_set_sched_v2 { ++ int32_t fill_rate; ++ int32_t interval; ++ int32_t tokens; ++ int32_t tokens_min; ++ int32_t tokens_max; ++ uint64_t cpu_mask; ++}; ++ ++struct vcmd_set_sched_v3 { ++ uint32_t set_mask; ++ int32_t fill_rate; ++ int32_t interval; ++ int32_t tokens; ++ int32_t tokens_min; ++ int32_t tokens_max; ++ int32_t priority_bias; ++}; ++ ++ ++#define VXSM_FILL_RATE 0x0001 ++#define VXSM_INTERVAL 0x0002 ++#define VXSM_TOKENS 0x0010 ++#define VXSM_TOKENS_MIN 0x0020 ++#define VXSM_TOKENS_MAX 0x0040 ++#define VXSM_PRIO_BIAS 0x0100 ++ ++#define SCHED_KEEP (-2) ++ ++#ifdef __KERNEL__ ++ ++#include <linux/compiler.h> ++ ++extern int vc_set_sched_v1(uint32_t, void __user *); ++extern int vc_set_sched_v2(uint32_t, void __user *); ++extern int vc_set_sched(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_SCHED_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/sched_def.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/sched_def.h +@@ -0,0 +1,39 @@ ++#ifndef _VX_SCHED_DEF_H ++#define _VX_SCHED_DEF_H ++ ++#include <linux/config.h> ++#include <linux/spinlock.h> ++#include <linux/jiffies.h> ++#include <linux/cpumask.h> ++#include <asm/atomic.h> ++#include <asm/param.h> ++ ++ ++struct _vx_ticks { ++ uint64_t user_ticks; /* token tick events */ ++ uint64_t sys_ticks; /* token tick events */ ++ uint64_t hold_ticks; /* token ticks paused */ ++ uint64_t unused[5]; /* cacheline ? */ ++}; ++ ++/* context sub struct */ ++ ++struct _vx_sched { ++ atomic_t tokens; /* number of CPU tokens */ ++ spinlock_t tokens_lock; /* lock for token bucket */ ++ ++ int fill_rate; /* Fill rate: add X tokens... */ ++ int interval; /* Divisor: per Y jiffies */ ++ int tokens_min; /* Limit: minimum for unhold */ ++ int tokens_max; /* Limit: no more than N tokens */ ++ uint32_t jiffies; /* last time accounted */ ++ ++ int priority_bias; /* bias offset for priority */ ++ int vavavoom; /* last calculated vavavoom */ ++ ++ cpumask_t cpus_allowed; /* cpu mask for context */ ++ ++ struct _vx_ticks cpu[NR_CPUS]; ++}; ++ ++#endif /* _VX_SCHED_DEF_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/signal_cmd.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/signal_cmd.h +@@ -0,0 +1,26 @@ ++#ifndef _VX_SIGNAL_CMD_H ++#define _VX_SIGNAL_CMD_H ++ ++ ++/* signalling vserver commands */ ++ ++#define VCMD_ctx_kill VC_CMD(PROCTRL, 1, 0) ++#define VCMD_wait_exit VC_CMD(EVENT, 99, 0) ++ ++struct vcmd_ctx_kill_v0 { ++ int32_t pid; ++ int32_t sig; ++}; ++ ++struct vcmd_wait_exit_v0 { ++ int32_t a; ++ int32_t b; ++}; ++ ++#ifdef __KERNEL__ ++ ++extern int vc_ctx_kill(uint32_t, void __user *); ++extern int vc_wait_exit(uint32_t, void __user *); ++ ++#endif /* __KERNEL__ */ ++#endif /* _VX_SIGNAL_CMD_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/switch.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/switch.h +@@ -0,0 +1,98 @@ ++#ifndef _VX_SWITCH_H ++#define _VX_SWITCH_H ++ ++#include <linux/types.h> ++ ++ ++#define VC_CATEGORY(c) (((c) >> 24) & 0x3F) ++#define VC_COMMAND(c) (((c) >> 16) & 0xFF) ++#define VC_VERSION(c) ((c) & 0xFFF) ++ ++#define VC_CMD(c,i,v) ((((VC_CAT_ ## c) & 0x3F) << 24) \ ++ | (((i) & 0xFF) << 16) | ((v) & 0xFFF)) ++ ++/* ++ ++ Syscall Matrix V2.8 ++ ++ |VERSION|CREATE |MODIFY |MIGRATE|CONTROL|EXPERIM| |SPECIAL|SPECIAL| ++ |STATS |DESTROY|ALTER |CHANGE |LIMIT |TEST | | | | ++ |INFO |SETUP | |MOVE | | | | | | ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ SYSTEM |VERSION|VSETUP |VHOST | | | | |DEVICES| | ++ HOST | 00| 01| 02| 03| 04| 05| | 06| 07| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ CPU | |VPROC |PROCALT|PROCMIG|PROCTRL| | |SCHED. | | ++ PROCESS| 08| 09| 10| 11| 12| 13| | 14| 15| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ MEMORY | | | | | | | |SWAP | | ++ | 16| 17| 18| 19| 20| 21| | 22| 23| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ NETWORK| |VNET |NETALT |NETMIG |NETCTL | | |SERIAL | | ++ | 24| 25| 26| 27| 28| 29| | 30| 31| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ DISK | | | | |DLIMIT | | |INODE | | ++ VFS | 32| 33| 34| 35| 36| 37| | 38| 39| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ OTHER | | | | | | | |VINFO | | ++ | 40| 41| 42| 43| 44| 45| | 46| 47| ++ =======+=======+=======+=======+=======+=======+=======+ +=======+=======+ ++ SPECIAL|EVENT | | | |FLAGS | | | | | ++ | 48| 49| 50| 51| 52| 53| | 54| 55| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ SPECIAL|DEBUG | | | |RLIMIT |SYSCALL| | |COMPAT | ++ | 56| 57| 58| 59| 60|TEST 61| | 62| 63| ++ -------+-------+-------+-------+-------+-------+-------+ +-------+-------+ ++ ++*/ ++ ++#define VC_CAT_VERSION 0 ++ ++#define VC_CAT_VSETUP 1 ++#define VC_CAT_VHOST 2 ++ ++#define VC_CAT_VPROC 9 ++#define VC_CAT_PROCALT 10 ++#define VC_CAT_PROCMIG 11 ++#define VC_CAT_PROCTRL 12 ++ ++#define VC_CAT_SCHED 14 ++ ++#define VC_CAT_VNET 25 ++#define VC_CAT_NETALT 26 ++#define VC_CAT_NETMIG 27 ++#define VC_CAT_NETCTRL 28 ++ ++#define VC_CAT_DLIMIT 36 ++#define VC_CAT_INODE 38 ++ ++#define VC_CAT_VINFO 46 ++#define VC_CAT_EVENT 48 ++ ++#define VC_CAT_FLAGS 52 ++#define VC_CAT_DEBUG 56 ++#define VC_CAT_RLIMIT 60 ++ ++#define VC_CAT_SYSTEST 61 ++#define VC_CAT_COMPAT 63 ++ ++/* interface version */ ++ ++#define VCI_VERSION 0x00020001 ++#define VCI_LEGACY_VERSION 0x000100FF ++ ++/* query version */ ++ ++#define VCMD_get_version VC_CMD(VERSION, 0, 0) ++ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/errno.h> ++ ++ ++#else /* __KERNEL__ */ ++#define __user ++#endif /* __KERNEL__ */ ++ ++#endif /* _VX_SWITCH_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/xid.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/include/linux/vserver/xid.h +@@ -0,0 +1,146 @@ ++#ifndef _VX_XID_H ++#define _VX_XID_H ++ ++#include <linux/config.h> ++ ++ ++#define XID_TAG(in) (IS_TAGXID(in)) ++ ++ ++#ifdef CONFIG_XID_TAG_NFSD ++#define XID_TAG_NFSD 1 ++#else ++#define XID_TAG_NFSD 0 ++#endif ++ ++ ++#ifdef CONFIG_INOXID_NONE ++ ++#define MAX_UID 0xFFFFFFFF ++#define MAX_GID 0xFFFFFFFF ++ ++#define INOXID_XID(tag, uid, gid, xid) (0) ++ ++#define XIDINO_UID(tag, uid, xid) (uid) ++#define XIDINO_GID(tag, gid, xid) (gid) ++ ++#endif ++ ++ ++#ifdef CONFIG_INOXID_GID16 ++ ++#define MAX_UID 0xFFFFFFFF ++#define MAX_GID 0x0000FFFF ++ ++#define INOXID_XID(tag, uid, gid, xid) \ ++ ((tag) ? (((gid) >> 16) & 0xFFFF) : 0) ++ ++#define XIDINO_UID(tag, uid, xid) (uid) ++#define XIDINO_GID(tag, gid, xid) \ ++ ((tag) ? (((gid) & 0xFFFF) | ((xid) << 16)) : (gid)) ++ ++#endif ++ ++ ++#ifdef CONFIG_INOXID_UGID24 ++ ++#define MAX_UID 0x00FFFFFF ++#define MAX_GID 0x00FFFFFF ++ ++#define INOXID_XID(tag, uid, gid, xid) \ ++ ((tag) ? ((((uid) >> 16) & 0xFF00) | (((gid) >> 24) & 0xFF)) : 0) ++ ++#define XIDINO_UID(tag, uid, xid) \ ++ ((tag) ? (((uid) & 0xFFFFFF) | (((xid) & 0xFF00) << 16)) : (uid)) ++#define XIDINO_GID(tag, gid, xid) \ ++ ((tag) ? (((gid) & 0xFFFFFF) | (((xid) & 0x00FF) << 24)) : (gid)) ++ ++#endif ++ ++ ++#ifdef CONFIG_INOXID_UID16 ++ ++#define MAX_UID 0x0000FFFF ++#define MAX_GID 0xFFFFFFFF ++ ++#define INOXID_XID(tag, uid, gid, xid) \ ++ ((tag) ? (((uid) >> 16) & 0xFFFF) : 0) ++ ++#define XIDINO_UID(tag, uid, xid) \ ++ ((tag) ? (((uid) & 0xFFFF) | ((xid) << 16)) : (uid)) ++#define XIDINO_GID(tag, gid, xid) (gid) ++ ++#endif ++ ++ ++#ifdef CONFIG_INOXID_INTERN ++ ++#define MAX_UID 0xFFFFFFFF ++#define MAX_GID 0xFFFFFFFF ++ ++#define INOXID_XID(tag, uid, gid, xid) \ ++ ((tag) ? (xid) : 0) ++ ++#define XIDINO_UID(tag, uid, xid) (uid) ++#define XIDINO_GID(tag, gid, xid) (gid) ++ ++#endif ++ ++ ++#ifdef CONFIG_INOXID_RUNTIME ++ ++#define MAX_UID 0xFFFFFFFF ++#define MAX_GID 0xFFFFFFFF ++ ++#define INOXID_XID(tag, uid, gid, xid) (0) ++ ++#define XIDINO_UID(tag, uid, xid) (uid) ++#define XIDINO_GID(tag, gid, xid) (gid) ++ ++#endif ++ ++ ++#ifndef CONFIG_INOXID_NONE ++#define vx_current_fsxid(sb) \ ++ ((sb)->s_flags & MS_TAGXID ? current->xid : 0) ++#else ++#define vx_current_fsxid(sb) (0) ++#endif ++ ++#ifndef CONFIG_INOXID_INTERN ++#define XIDINO_XID(tag, xid) (0) ++#else ++#define XIDINO_XID(tag, xid) ((tag) ? (xid) : 0) ++#endif ++ ++#define INOXID_UID(tag, uid, gid) \ ++ ((tag) ? ((uid) & MAX_UID) : (uid)) ++#define INOXID_GID(tag, uid, gid) \ ++ ((tag) ? ((gid) & MAX_GID) : (gid)) ++ ++ ++static inline uid_t vx_map_uid(uid_t uid) ++{ ++ if ((uid > MAX_UID) && (uid != -1)) ++ uid = -2; ++ return (uid & MAX_UID); ++} ++ ++static inline gid_t vx_map_gid(gid_t gid) ++{ ++ if ((gid > MAX_GID) && (gid != -1)) ++ gid = -2; ++ return (gid & MAX_GID); ++} ++ ++ ++#ifdef CONFIG_VSERVER_LEGACY ++#define FIOC_GETXID _IOR('x', 1, long) ++#define FIOC_SETXID _IOW('x', 2, long) ++#define FIOC_SETXIDJ _IOW('x', 3, long) ++#endif ++ ++int vx_parse_xid(char *string, xid_t *xid, int remove); ++void vx_propagate_xid(struct nameidata *nd, struct inode *inode); ++ ++#endif /* _VX_XID_H */ +Index: vserver-sources-2.0.2_2.6.15.4/include/net/af_unix.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/net/af_unix.h ++++ vserver-sources-2.0.2_2.6.15.4/include/net/af_unix.h +@@ -17,9 +17,9 @@ extern rwlock_t unix_table_lock; + + extern atomic_t unix_tot_inflight; + +-static inline struct sock *first_unix_socket(int *i) ++static inline struct sock *next_unix_socket_table(int *i) + { +- for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) { ++ for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) { + if (!hlist_empty(&unix_socket_table[*i])) + return __sk_head(&unix_socket_table[*i]); + } +@@ -28,16 +28,19 @@ static inline struct sock *first_unix_so + + static inline struct sock *next_unix_socket(int *i, struct sock *s) + { +- struct sock *next = sk_next(s); +- /* More in this chain? */ +- if (next) +- return next; +- /* Look for next non-empty chain. */ +- for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) { +- if (!hlist_empty(&unix_socket_table[*i])) +- return __sk_head(&unix_socket_table[*i]); +- } +- return NULL; ++ do { ++ if (s) ++ s = sk_next(s); ++ if (!s) ++ s = next_unix_socket_table(i); ++ } while (s && !vx_check(s->sk_xid, VX_IDENT|VX_WATCH)); ++ return s; ++} ++ ++static inline struct sock *first_unix_socket(int *i) ++{ ++ *i = 0; ++ return next_unix_socket(i, NULL); + } + + #define forall_unix_sockets(i, s) \ +Index: vserver-sources-2.0.2_2.6.15.4/include/net/inet_hashtables.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/net/inet_hashtables.h ++++ vserver-sources-2.0.2_2.6.15.4/include/net/inet_hashtables.h +@@ -291,6 +291,25 @@ static inline int inet_iif(const struct + return ((struct rtable *)skb->dst)->rt_iif; + } + ++/* ++ * Check if a given address matches for an inet socket ++ * ++ * nxi: the socket's nx_info if any ++ * addr: to be verified address ++ * saddr: socket addresses ++ */ ++static inline int inet_addr_match ( ++ struct nx_info *nxi, ++ uint32_t addr, ++ uint32_t saddr) ++{ ++ if (addr && (saddr == addr)) ++ return 1; ++ if (!saddr) ++ return addr_in_nx_info(nxi, addr); ++ return 0; ++} ++ + extern struct sock *__inet_lookup_listener(const struct hlist_head *head, + const u32 daddr, + const unsigned short hnum, +@@ -311,7 +330,7 @@ static inline struct sock * + const struct inet_sock *inet = inet_sk((sk = __sk_head(head))); + + if (inet->num == hnum && !sk->sk_node.next && +- (!inet->rcv_saddr || inet->rcv_saddr == daddr) && ++ inet_addr_match(sk->sk_nx_info, daddr, inet->rcv_saddr) && + (sk->sk_family == PF_INET || !ipv6_only_sock(sk)) && + !sk->sk_bound_dev_if) + goto sherry_cache; +Index: vserver-sources-2.0.2_2.6.15.4/include/net/inet_timewait_sock.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/net/inet_timewait_sock.h ++++ vserver-sources-2.0.2_2.6.15.4/include/net/inet_timewait_sock.h +@@ -115,6 +115,10 @@ struct inet_timewait_sock { + #define tw_refcnt __tw_common.skc_refcnt + #define tw_hash __tw_common.skc_hash + #define tw_prot __tw_common.skc_prot ++#define tw_xid __tw_common.skc_xid ++#define tw_vx_info __tw_common.skc_vx_info ++#define tw_nid __tw_common.skc_nid ++#define tw_nx_info __tw_common.skc_nx_info + volatile unsigned char tw_substate; + /* 3 bits hole, try to pack */ + unsigned char tw_rcv_wscale; +Index: vserver-sources-2.0.2_2.6.15.4/include/net/route.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/net/route.h ++++ vserver-sources-2.0.2_2.6.15.4/include/net/route.h +@@ -33,6 +33,7 @@ + #include <linux/route.h> + #include <linux/ip.h> + #include <linux/cache.h> ++#include <linux/vs_network.h> + + #ifndef __KERNEL__ + #warning This file is not supposed to be used outside of kernel. +@@ -144,6 +145,59 @@ static inline char rt_tos2priority(u8 to + return ip_tos2prio[IPTOS_TOS(tos)>>1]; + } + ++#define IPI_LOOPBACK htonl(INADDR_LOOPBACK) ++ ++static inline int ip_find_src(struct nx_info *nxi, struct rtable **rp, struct flowi *fl) ++{ ++ int err; ++ int i, n = nxi->nbipv4; ++ u32 ipv4root = nxi->ipv4[0]; ++ ++ if (ipv4root == 0) ++ return 0; ++ ++ if (fl->fl4_src == 0) { ++ if (n > 1) { ++ u32 foundsrc; ++ ++ err = __ip_route_output_key(rp, fl); ++ if (err) { ++ fl->fl4_src = ipv4root; ++ err = __ip_route_output_key(rp, fl); ++ } ++ if (err) ++ return err; ++ ++ foundsrc = (*rp)->rt_src; ++ ip_rt_put(*rp); ++ ++ for (i=0; i<n; i++){ ++ u32 mask = nxi->mask[i]; ++ u32 ipv4 = nxi->ipv4[i]; ++ u32 net4 = ipv4 & mask; ++ ++ if (foundsrc == ipv4) { ++ fl->fl4_src = ipv4; ++ break; ++ } ++ if (!fl->fl4_src && (foundsrc & mask) == net4) ++ fl->fl4_src = ipv4; ++ } ++ } ++ if (fl->fl4_src == 0) ++ fl->fl4_src = (fl->fl4_dst == IPI_LOOPBACK) ++ ? IPI_LOOPBACK : ipv4root; ++ } else { ++ for (i=0; i<n; i++) { ++ if (nxi->ipv4[i] == fl->fl4_src) ++ break; ++ } ++ if (i == n) ++ return -EPERM; ++ } ++ return 0; ++} ++ + static inline int ip_route_connect(struct rtable **rp, u32 dst, + u32 src, u32 tos, int oif, u8 protocol, + u16 sport, u16 dport, struct sock *sk) +@@ -158,7 +212,23 @@ static inline int ip_route_connect(struc + .dport = dport } } }; + + int err; +- if (!dst || !src) { ++ struct nx_info *nx_info = current->nx_info; ++ ++ if (sk) ++ nx_info = sk->sk_nx_info; ++ vxdprintk(VXD_CBIT(net, 4), ++ "ip_route_connect(%p) %p,%p;%lx", ++ sk, nx_info, sk->sk_socket, ++ (sk->sk_socket?sk->sk_socket->flags:0)); ++ ++ if (nx_info) { ++ err = ip_find_src(nx_info, rp, &fl); ++ if (err) ++ return err; ++ if (fl.fl4_dst == IPI_LOOPBACK && !vx_check(0, VX_ADMIN)) ++ fl.fl4_dst = nx_info->ipv4[0]; ++ } ++ if (!fl.fl4_dst || !fl.fl4_src) { + err = __ip_route_output_key(rp, &fl); + if (err) + return err; +Index: vserver-sources-2.0.2_2.6.15.4/include/net/sock.h +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/include/net/sock.h ++++ vserver-sources-2.0.2_2.6.15.4/include/net/sock.h +@@ -115,6 +115,10 @@ struct sock_common { + atomic_t skc_refcnt; + unsigned int skc_hash; + struct proto *skc_prot; ++ xid_t skc_xid; ++ struct vx_info *skc_vx_info; ++ nid_t skc_nid; ++ struct nx_info *skc_nx_info; + }; + + /** +@@ -189,6 +193,10 @@ struct sock { + #define sk_refcnt __sk_common.skc_refcnt + #define sk_hash __sk_common.skc_hash + #define sk_prot __sk_common.skc_prot ++#define sk_xid __sk_common.skc_xid ++#define sk_vx_info __sk_common.skc_vx_info ++#define sk_nid __sk_common.skc_nid ++#define sk_nx_info __sk_common.skc_nx_info + unsigned char sk_shutdown : 2, + sk_no_check : 2, + sk_userlocks : 4; +Index: vserver-sources-2.0.2_2.6.15.4/init/version.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/init/version.c ++++ vserver-sources-2.0.2_2.6.15.4/init/version.c +@@ -31,3 +31,8 @@ EXPORT_SYMBOL(system_utsname); + const char linux_banner[] = + "Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@" + LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n"; ++ ++const char vx_linux_banner[] = ++ "Linux version %s (" LINUX_COMPILE_BY "@" ++ LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") %s\n"; ++ +Index: vserver-sources-2.0.2_2.6.15.4/ipc/mqueue.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/ipc/mqueue.c ++++ vserver-sources-2.0.2_2.6.15.4/ipc/mqueue.c +@@ -24,6 +24,8 @@ + #include <linux/netlink.h> + #include <linux/syscalls.h> + #include <linux/signal.h> ++#include <linux/vs_context.h> ++#include <linux/vs_limit.h> + #include <net/sock.h> + #include "util.h" + +@@ -147,17 +149,20 @@ static struct inode *mqueue_get_inode(st + spin_lock(&mq_lock); + if (u->mq_bytes + mq_bytes < u->mq_bytes || + u->mq_bytes + mq_bytes > +- p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur) { ++ p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur || ++ !vx_ipcmsg_avail(p->vx_info, mq_bytes)) { + spin_unlock(&mq_lock); + goto out_inode; + } + u->mq_bytes += mq_bytes; ++ vx_ipcmsg_add(p->vx_info, u, mq_bytes); + spin_unlock(&mq_lock); + + info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL); + if (!info->messages) { + spin_lock(&mq_lock); + u->mq_bytes -= mq_bytes; ++ vx_ipcmsg_sub(p->vx_info, u, mq_bytes); + spin_unlock(&mq_lock); + goto out_inode; + } +@@ -255,10 +260,14 @@ static void mqueue_delete_inode(struct i + (info->attr.mq_maxmsg * info->attr.mq_msgsize)); + user = info->user; + if (user) { ++ struct vx_info *vxi = locate_vx_info(user->xid); ++ + spin_lock(&mq_lock); + user->mq_bytes -= mq_bytes; ++ vx_ipcmsg_sub(vxi, user, mq_bytes); + queues_count--; + spin_unlock(&mq_lock); ++ put_vx_info(vxi); + free_uid(user); + } + } +@@ -737,7 +746,7 @@ asmlinkage long sys_mq_unlink(const char + if (inode) + atomic_inc(&inode->i_count); + +- err = vfs_unlink(dentry->d_parent->d_inode, dentry); ++ err = vfs_unlink(dentry->d_parent->d_inode, dentry, NULL); + out_err: + dput(dentry); + +Index: vserver-sources-2.0.2_2.6.15.4/ipc/msg.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/ipc/msg.c ++++ vserver-sources-2.0.2_2.6.15.4/ipc/msg.c +@@ -99,6 +99,7 @@ static int newque (key_t key, int msgflg + + msq->q_perm.mode = (msgflg & S_IRWXUGO); + msq->q_perm.key = key; ++ msq->q_perm.xid = vx_current_xid(); + + msq->q_perm.security = NULL; + retval = security_msg_queue_alloc(msq); +@@ -814,6 +815,9 @@ static int sysvipc_msg_proc_show(struct + { + struct msg_queue *msq = it; + ++ if (!vx_check(msq->q_perm.xid, VX_IDENT)) ++ return 0; ++ + return seq_printf(s, + "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n", + msq->q_perm.key, +Index: vserver-sources-2.0.2_2.6.15.4/ipc/sem.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/ipc/sem.c ++++ vserver-sources-2.0.2_2.6.15.4/ipc/sem.c +@@ -178,6 +178,7 @@ static int newary (key_t key, int nsems, + + sma->sem_perm.mode = (semflg & S_IRWXUGO); + sma->sem_perm.key = key; ++ sma->sem_perm.xid = vx_current_xid(); + + sma->sem_perm.security = NULL; + retval = security_sem_alloc(sma); +@@ -1336,6 +1337,9 @@ static int sysvipc_sem_proc_show(struct + { + struct sem_array *sma = it; + ++ if (!vx_check(sma->sem_perm.xid, VX_IDENT)) ++ return 0; ++ + return seq_printf(s, + "%10d %10d %4o %10lu %5u %5u %5u %5u %10lu %10lu\n", + sma->sem_perm.key, +Index: vserver-sources-2.0.2_2.6.15.4/ipc/shm.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/ipc/shm.c ++++ vserver-sources-2.0.2_2.6.15.4/ipc/shm.c +@@ -29,6 +29,8 @@ + #include <linux/audit.h> + #include <linux/ptrace.h> + #include <linux/seq_file.h> ++#include <linux/vs_context.h> ++#include <linux/vs_limit.h> + + #include <asm/uaccess.h> + +@@ -115,7 +117,12 @@ static void shm_open (struct vm_area_str + */ + static void shm_destroy (struct shmid_kernel *shp) + { +- shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT; ++ struct vx_info *vxi = locate_vx_info(shp->shm_perm.xid); ++ int numpages = (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT; ++ ++ vx_ipcshm_sub(vxi, shp, numpages); ++ shm_tot -= numpages; ++ + shm_rmid (shp->id); + shm_unlock(shp); + if (!is_file_hugepages(shp->shm_file)) +@@ -125,6 +132,7 @@ static void shm_destroy (struct shmid_ke + shp->mlock_user); + fput (shp->shm_file); + security_shm_free(shp); ++ put_vx_info(vxi); + ipc_rcu_putref(shp); + } + +@@ -191,12 +199,15 @@ static int newseg (key_t key, int shmflg + + if (shm_tot + numpages >= shm_ctlall) + return -ENOSPC; ++ if (!vx_ipcshm_avail(current->vx_info, numpages)) ++ return -ENOSPC; + + shp = ipc_rcu_alloc(sizeof(*shp)); + if (!shp) + return -ENOMEM; + + shp->shm_perm.key = key; ++ shp->shm_perm.xid = vx_current_xid(); + shp->shm_flags = (shmflg & S_IRWXUGO); + shp->mlock_user = NULL; + +@@ -247,6 +258,7 @@ static int newseg (key_t key, int shmflg + file->f_op = &shm_file_operations; + + shm_tot += numpages; ++ vx_ipcshm_add(current->vx_info, key, numpages); + shm_unlock(shp); + return shp->id; + +@@ -887,6 +899,9 @@ static int sysvipc_shm_proc_show(struct + #define SMALL_STRING "%10d %10d %4o %10u %5u %5u %5d %5u %5u %5u %5u %10lu %10lu %10lu\n" + #define BIG_STRING "%10d %10d %4o %21u %5u %5u %5d %5u %5u %5u %5u %10lu %10lu %10lu\n" + ++ if (!vx_check(shp->shm_perm.xid, VX_IDENT)) ++ return 0; ++ + if (sizeof(size_t) <= sizeof(int)) + format = SMALL_STRING; + else +Index: vserver-sources-2.0.2_2.6.15.4/ipc/util.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/ipc/util.c ++++ vserver-sources-2.0.2_2.6.15.4/ipc/util.c +@@ -153,7 +153,9 @@ int ipc_findkey(struct ipc_ids* ids, key + */ + for (id = 0; id <= max_id; id++) { + p = ids->entries->p[id]; +- if(p==NULL) ++ if (p==NULL) ++ continue; ++ if (!vx_check(p->xid, VX_IDENT)) + continue; + if (key == p->key) + return id; +@@ -467,6 +469,8 @@ int ipcperms (struct kern_ipc_perm *ipcp + { /* flag will most probably be 0 or S_...UGO from <linux/stat.h> */ + int requested_mode, granted_mode; + ++ if (!vx_check(ipcp->xid, VX_ADMIN|VX_IDENT)) /* maybe just VX_IDENT? */ ++ return -1; + requested_mode = (flag >> 6) | (flag >> 3) | flag; + granted_mode = ipcp->mode; + if (current->euid == ipcp->cuid || current->euid == ipcp->uid) +Index: vserver-sources-2.0.2_2.6.15.4/kernel/Makefile +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/Makefile ++++ vserver-sources-2.0.2_2.6.15.4/kernel/Makefile +@@ -9,6 +9,9 @@ obj-y = sched.o fork.o exec_domain.o + rcupdate.o intermodule.o extable.o params.o posix-timers.o \ + kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o + ++subdir-y += vserver ++obj-y += vserver/vserver.o ++ + obj-$(CONFIG_FUTEX) += futex.o + obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o + obj-$(CONFIG_SMP) += cpu.o spinlock.o +Index: vserver-sources-2.0.2_2.6.15.4/kernel/capability.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/capability.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/capability.c +@@ -11,6 +11,7 @@ + #include <linux/module.h> + #include <linux/security.h> + #include <linux/syscalls.h> ++#include <linux/vs_cvirt.h> + #include <asm/uaccess.h> + + unsigned securebits = SECUREBITS_DEFAULT; /* systemwide security settings */ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/cpuset.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/cpuset.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/cpuset.c +@@ -49,6 +49,7 @@ + #include <linux/time.h> + #include <linux/backing-dev.h> + #include <linux/sort.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/atomic.h> +Index: vserver-sources-2.0.2_2.6.15.4/kernel/exit.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/exit.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/exit.c +@@ -29,6 +29,10 @@ + #include <linux/syscalls.h> + #include <linux/signal.h> + #include <linux/cn_proc.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_cvirt.h> + + #include <asm/uaccess.h> + #include <asm/unistd.h> +@@ -45,6 +49,11 @@ static void exit_mm(struct task_struct * + static void __unhash_process(struct task_struct *p) + { + nr_threads--; ++ /* tasklist_lock is held */ ++ if (p->vx_info) { ++ atomic_dec(&p->vx_info->cvirt.nr_threads); ++ vx_nproc_dec(p); ++ } + detach_pid(p, PIDTYPE_PID); + detach_pid(p, PIDTYPE_TGID); + if (thread_group_leader(p)) { +@@ -106,6 +115,10 @@ repeat: + spin_unlock(&p->proc_lock); + proc_pid_flush(proc_dentry); + release_thread(p); ++ if (p->vx_info) ++ release_vx_info(p->vx_info, p); ++ if (p->nx_info) ++ release_nx_info(p->nx_info, p); + put_task_struct(p); + + p = leader; +@@ -236,6 +249,7 @@ static inline void reparent_to_init(void + ptrace_unlink(current); + /* Reparent to init */ + REMOVE_LINKS(current); ++ /* FIXME: handle vchild_reaper/initpid */ + current->parent = child_reaper; + current->real_parent = child_reaper; + SET_LINKS(current); +@@ -357,6 +371,9 @@ void daemonize(const char *name, ...) + fs = init_task.fs; + current->fs = fs; + atomic_inc(&fs->count); ++ exit_namespace(current); ++ current->namespace = init_task.namespace; ++ atomic_inc(¤t->namespace->count); + exit_files(current); + current->files = init_task.files; + atomic_inc(¤t->files->count); +@@ -390,6 +407,7 @@ static inline void close_files(struct fi + struct file * file = xchg(&fdt->fd[i], NULL); + if (file) + filp_close(file, files); ++ vx_openfd_dec(i); + } + i++; + set >>= 1; +@@ -610,6 +628,7 @@ static inline void forget_original_paren + struct task_struct *p, *reaper = father; + struct list_head *_p, *_n; + ++ /* FIXME: handle vchild_reaper/initpid */ + do { + reaper = next_thread(reaper); + if (reaper == father) { +Index: vserver-sources-2.0.2_2.6.15.4/kernel/fork.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/fork.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/fork.c +@@ -43,6 +43,10 @@ + #include <linux/rmap.h> + #include <linux/acct.h> + #include <linux/cn_proc.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_memory.h> + + #include <asm/pgtable.h> + #include <asm/pgalloc.h> +@@ -104,6 +108,8 @@ static kmem_cache_t *mm_cachep; + void free_task(struct task_struct *tsk) + { + free_thread_info(tsk->thread_info); ++ clr_vx_info(&tsk->vx_info); ++ clr_nx_info(&tsk->nx_info); + free_task_struct(tsk); + } + EXPORT_SYMBOL(free_task); +@@ -201,6 +207,8 @@ static inline int dup_mmap(struct mm_str + mm->free_area_cache = oldmm->mmap_base; + mm->cached_hole_size = ~0UL; + mm->map_count = 0; ++ __set_mm_counter(mm, file_rss, 0); ++ __set_mm_counter(mm, anon_rss, 0); + cpus_clear(mm->cpu_vm_mask); + mm->mm_rb = RB_ROOT; + rb_link = &mm->mm_rb.rb_node; +@@ -212,7 +220,7 @@ static inline int dup_mmap(struct mm_str + + if (mpnt->vm_flags & VM_DONTCOPY) { + long pages = vma_pages(mpnt); +- mm->total_vm -= pages; ++ vx_vmpages_sub(mm, pages); + vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file, + -pages); + continue; +@@ -319,8 +327,6 @@ static struct mm_struct * mm_init(struct + INIT_LIST_HEAD(&mm->mmlist); + mm->core_waiters = 0; + mm->nr_ptes = 0; +- set_mm_counter(mm, file_rss, 0); +- set_mm_counter(mm, anon_rss, 0); + spin_lock_init(&mm->page_table_lock); + rwlock_init(&mm->ioctx_list_lock); + mm->ioctx_list = NULL; +@@ -329,6 +335,7 @@ static struct mm_struct * mm_init(struct + + if (likely(!mm_alloc_pgd(mm))) { + mm->def_flags = 0; ++ set_vx_info(&mm->mm_vx_info, current->vx_info); + return mm; + } + free_mm(mm); +@@ -360,6 +367,7 @@ void fastcall __mmdrop(struct mm_struct + BUG_ON(mm == &init_mm); + mm_free_pgd(mm); + destroy_context(mm); ++ clr_vx_info(&mm->mm_vx_info); + free_mm(mm); + } + +@@ -513,6 +521,7 @@ static int copy_mm(unsigned long clone_f + + /* Copy the current MM stuff.. */ + memcpy(mm, oldmm, sizeof(*mm)); ++ mm->mm_vx_info = NULL; + if (!mm_init(mm)) + goto fail_nomem; + +@@ -541,6 +550,7 @@ fail_nocontext: + * If init_new_context() failed, we cannot use mmput() to free the mm + * because it calls destroy_context() + */ ++ clr_vx_info(&mm->mm_vx_info); + mm_free_pgd(mm); + free_mm(mm); + return retval; +@@ -709,6 +719,8 @@ static int copy_files(unsigned long clon + struct file *f = *old_fds++; + if (f) { + get_file(f); ++ /* FIXME: sum it first for check and performance */ ++ vx_openfd_inc(open_files - i); + } else { + /* + * The fd may be claimed in the fd bitmap but not yet +@@ -904,6 +916,8 @@ static task_t *copy_process(unsigned lon + { + int retval; + struct task_struct *p = NULL; ++ struct vx_info *vxi; ++ struct nx_info *nxi; + + if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS)) + return ERR_PTR(-EINVAL); +@@ -932,12 +946,30 @@ static task_t *copy_process(unsigned lon + if (!p) + goto fork_out; + ++ init_vx_info(&p->vx_info, current->vx_info); ++ init_nx_info(&p->nx_info, current->nx_info); ++ ++ /* check vserver memory */ ++ if (p->mm && !(clone_flags & CLONE_VM)) { ++ if (vx_vmpages_avail(p->mm, p->mm->total_vm)) ++ vx_pages_add(p->mm->mm_vx_info, RLIMIT_AS, p->mm->total_vm); ++ else ++ goto bad_fork_free; ++ } ++ if (p->mm && vx_flags(VXF_FORK_RSS, 0)) { ++ if (!vx_rsspages_avail(p->mm, get_mm_counter(p->mm, file_rss))) ++ goto bad_fork_cleanup_vm; ++ } ++ + retval = -EAGAIN; ++ if (!vx_nproc_avail(1)) ++ goto bad_fork_cleanup_vm; ++ + if (atomic_read(&p->user->processes) >= + p->signal->rlim[RLIMIT_NPROC].rlim_cur) { + if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) && + p->user != &root_user) +- goto bad_fork_free; ++ goto bad_fork_cleanup_vm; + } + + atomic_inc(&p->user->__count); +@@ -1173,6 +1205,18 @@ static task_t *copy_process(unsigned lon + + nr_threads++; + total_forks++; ++ ++ /* p is copy of current */ ++ vxi = p->vx_info; ++ if (vxi) { ++ claim_vx_info(vxi, p); ++ atomic_inc(&vxi->cvirt.nr_threads); ++ atomic_inc(&vxi->cvirt.total_forks); ++ vx_nproc_inc(p); ++ } ++ nxi = p->nx_info; ++ if (nxi) ++ claim_nx_info(nxi, p); + write_unlock_irq(&tasklist_lock); + proc_fork_connector(p); + cpuset_fork(p); +@@ -1217,6 +1261,9 @@ bad_fork_cleanup_count: + put_group_info(p->group_info); + atomic_dec(&p->user->processes); + free_uid(p->user); ++bad_fork_cleanup_vm: ++ if (p->mm && !(clone_flags & CLONE_VM)) ++ vx_pages_sub(p->mm->mm_vx_info, RLIMIT_AS, p->mm->total_vm); + bad_fork_free: + free_task(p); + goto fork_out; +Index: vserver-sources-2.0.2_2.6.15.4/kernel/kthread.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/kthread.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/kthread.c +@@ -114,7 +114,7 @@ static void keventd_create_kthread(void + create->result = ERR_PTR(pid); + } else { + wait_for_completion(&create->started); +- create->result = find_task_by_pid(pid); ++ create->result = find_task_by_real_pid(pid); + } + complete(&create->done); + } +Index: vserver-sources-2.0.2_2.6.15.4/kernel/posix-cpu-timers.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/posix-cpu-timers.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/posix-cpu-timers.c +@@ -6,6 +6,7 @@ + #include <linux/posix-timers.h> + #include <asm/uaccess.h> + #include <linux/errno.h> ++#include <linux/vs_cvirt.h> + + static int check_clock(clockid_t which_clock) + { +Index: vserver-sources-2.0.2_2.6.15.4/kernel/posix-timers.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/posix-timers.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/posix-timers.c +@@ -47,6 +47,7 @@ + #include <linux/wait.h> + #include <linux/workqueue.h> + #include <linux/module.h> ++#include <linux/vs_cvirt.h> + + #ifndef div_long_long_rem + #include <asm/div64.h> +@@ -430,9 +431,10 @@ int posix_timer_event(struct k_itimer *t + + if (timr->it_sigev_notify & SIGEV_THREAD_ID) { + struct task_struct *leader; +- int ret = send_sigqueue(timr->it_sigev_signo, timr->sigq, +- timr->it_process); ++ int ret; + ++ ret = send_sigqueue(timr->it_sigev_signo, timr->sigq, ++ timr->it_process); + if (likely(ret >= 0)) + return ret; + +@@ -518,7 +520,7 @@ static inline struct task_struct * good_ + struct task_struct *rtn = current->group_leader; + + if ((event->sigev_notify & SIGEV_THREAD_ID ) && +- (!(rtn = find_task_by_pid(event->sigev_notify_thread_id)) || ++ (!(rtn = find_task_by_real_pid(event->sigev_notify_thread_id)) || + rtn->tgid != current->tgid || + (event->sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_SIGNAL)) + return NULL; +Index: vserver-sources-2.0.2_2.6.15.4/kernel/printk.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/printk.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/printk.c +@@ -31,6 +31,7 @@ + #include <linux/security.h> + #include <linux/bootmem.h> + #include <linux/syscalls.h> ++#include <linux/vserver/cvirt.h> + + #include <asm/uaccess.h> + +@@ -221,18 +222,13 @@ int do_syslog(int type, char __user *buf + unsigned long i, j, limit, count; + int do_clear = 0; + char c; +- int error = 0; ++ int error; + + error = security_syslog(type); + if (error) + return error; + +- switch (type) { +- case 0: /* Close log */ +- break; +- case 1: /* Open log */ +- break; +- case 2: /* Read from log */ ++ if ((type >= 2) && (type <= 4)) { + error = -EINVAL; + if (!buf || len < 0) + goto out; +@@ -243,6 +239,16 @@ int do_syslog(int type, char __user *buf + error = -EFAULT; + goto out; + } ++ } ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return vx_do_syslog(type, buf, len); ++ ++ switch (type) { ++ case 0: /* Close log */ ++ break; ++ case 1: /* Open log */ ++ break; ++ case 2: /* Read from log */ + error = wait_event_interruptible(log_wait, + (log_start - log_end)); + if (error) +@@ -267,16 +273,6 @@ int do_syslog(int type, char __user *buf + do_clear = 1; + /* FALL THRU */ + case 3: /* Read last kernel messages */ +- error = -EINVAL; +- if (!buf || len < 0) +- goto out; +- error = 0; +- if (!len) +- goto out; +- if (!access_ok(VERIFY_WRITE, buf, len)) { +- error = -EFAULT; +- goto out; +- } + count = len; + if (count > log_buf_len) + count = log_buf_len; +Index: vserver-sources-2.0.2_2.6.15.4/kernel/ptrace.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/ptrace.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/ptrace.c +@@ -17,6 +17,7 @@ + #include <linux/ptrace.h> + #include <linux/security.h> + #include <linux/signal.h> ++#include <linux/vs_cvirt.h> + + #include <asm/pgtable.h> + #include <asm/uaccess.h> +@@ -469,6 +470,10 @@ asmlinkage long sys_ptrace(long request, + if (!child) + goto out; + ++ ret = -EPERM; ++ if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) ++ goto out_put_task_struct; ++ + if (request == PTRACE_ATTACH) { + ret = ptrace_attach(child); + goto out_put_task_struct; +Index: vserver-sources-2.0.2_2.6.15.4/kernel/sched.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/sched.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/sched.c +@@ -50,6 +50,9 @@ + #include <asm/tlb.h> + + #include <asm/unistd.h> ++#include <linux/vs_context.h> ++#include <linux/vs_cvirt.h> ++#include <linux/vs_sched.h> + + /* + * Convert user-nice values [ -20 ... 0 ... 19 ] +@@ -237,6 +240,10 @@ struct runqueue { + task_t *migration_thread; + struct list_head migration_queue; + #endif ++#ifdef CONFIG_VSERVER_HARDCPU ++ struct list_head hold_queue; ++ int idle_tokens; ++#endif + + #ifdef CONFIG_SCHEDSTATS + /* latency stats */ +@@ -597,6 +604,7 @@ static inline void sched_info_switch(tas + */ + static void dequeue_task(struct task_struct *p, prio_array_t *array) + { ++ BUG_ON(p->state & TASK_ONHOLD); + array->nr_active--; + list_del(&p->run_list); + if (list_empty(array->queue + p->prio)) +@@ -605,6 +613,7 @@ static void dequeue_task(struct task_str + + static void enqueue_task(struct task_struct *p, prio_array_t *array) + { ++ BUG_ON(p->state & TASK_ONHOLD); + sched_info_queued(p); + list_add_tail(&p->run_list, array->queue + p->prio); + __set_bit(p->prio, array->bitmap); +@@ -618,11 +627,13 @@ static void enqueue_task(struct task_str + */ + static void requeue_task(struct task_struct *p, prio_array_t *array) + { ++ BUG_ON(p->state & TASK_ONHOLD); + list_move_tail(&p->run_list, array->queue + p->prio); + } + + static inline void enqueue_task_head(struct task_struct *p, prio_array_t *array) + { ++ BUG_ON(p->state & TASK_ONHOLD); + list_add(&p->run_list, array->queue + p->prio); + __set_bit(p->prio, array->bitmap); + array->nr_active++; +@@ -646,6 +657,7 @@ static inline void enqueue_task_head(str + static int effective_prio(task_t *p) + { + int bonus, prio; ++ struct vx_info *vxi; + + if (rt_task(p)) + return p->prio; +@@ -653,6 +665,11 @@ static int effective_prio(task_t *p) + bonus = CURRENT_BONUS(p) - MAX_BONUS / 2; + + prio = p->static_prio - bonus; ++ ++ if ((vxi = p->vx_info) && ++ vx_info_flags(vxi, VXF_SCHED_PRIO, 0)) ++ prio += vx_effective_vavavoom(vxi, MAX_USER_PRIO); ++ + if (prio < MAX_RT_PRIO) + prio = MAX_RT_PRIO; + if (prio > MAX_PRIO-1) +@@ -842,19 +859,77 @@ static void activate_task(task_t *p, run + } + p->timestamp = now; + ++ vx_activate_task(p); + __activate_task(p, rq); + } + + /* + * deactivate_task - remove a task from the runqueue. + */ +-static void deactivate_task(struct task_struct *p, runqueue_t *rq) ++static void __deactivate_task(struct task_struct *p, runqueue_t *rq) + { + dec_nr_running(p, rq); + dequeue_task(p, p->array); + p->array = NULL; + } + ++static inline ++void deactivate_task(struct task_struct *p, runqueue_t *rq) ++{ ++ vx_deactivate_task(p); ++ __deactivate_task(p, rq); ++} ++ ++ ++#ifdef CONFIG_VSERVER_HARDCPU ++/* ++ * vx_hold_task - put a task on the hold queue ++ */ ++static inline ++void vx_hold_task(struct vx_info *vxi, ++ struct task_struct *p, runqueue_t *rq) ++{ ++ __deactivate_task(p, rq); ++ p->state |= TASK_ONHOLD; ++ /* a new one on hold */ ++ vx_onhold_inc(vxi); ++ list_add_tail(&p->run_list, &rq->hold_queue); ++} ++ ++/* ++ * vx_unhold_task - put a task back to the runqueue ++ */ ++static inline ++void vx_unhold_task(struct vx_info *vxi, ++ struct task_struct *p, runqueue_t *rq) ++{ ++ list_del(&p->run_list); ++ /* one less waiting */ ++ vx_onhold_dec(vxi); ++ p->state &= ~TASK_ONHOLD; ++ enqueue_task(p, rq->expired); ++ rq->nr_running++; ++ ++ if (p->static_prio < rq->best_expired_prio) ++ rq->best_expired_prio = p->static_prio; ++} ++#else ++static inline ++void vx_hold_task(struct vx_info *vxi, ++ struct task_struct *p, runqueue_t *rq) ++{ ++ return; ++} ++ ++static inline ++void vx_unhold_task(struct vx_info *vxi, ++ struct task_struct *p, runqueue_t *rq) ++{ ++ return; ++} ++#endif /* CONFIG_VSERVER_HARDCPU */ ++ ++ + /* + * resched_task - mark a task 'to be rescheduled now'. + * +@@ -1252,6 +1327,12 @@ static int try_to_wake_up(task_t *p, uns + + rq = task_rq_lock(p, &flags); + old_state = p->state; ++ ++ /* we need to unhold suspended tasks */ ++ if (old_state & TASK_ONHOLD) { ++ vx_unhold_task(p->vx_info, p, rq); ++ old_state = p->state; ++ } + if (!(old_state & state)) + goto out; + +@@ -1368,10 +1449,16 @@ out_activate: + * sleep is handled in a priority-neutral manner, no priority + * boost and no penalty.) + */ +- if (old_state & TASK_NONINTERACTIVE) ++ if (old_state & TASK_NONINTERACTIVE) { ++ vx_activate_task(p); + __activate_task(p, rq); +- else ++ } else + activate_task(p, rq, cpu == this_cpu); ++ ++ /* this is to get the accounting behind the load update */ ++ if (old_state & TASK_UNINTERRUPTIBLE) ++ vx_uninterruptible_dec(p); ++ + /* + * Sync wakeups (i.e. those types of wakeups where the waker + * has indicated that it will leave the CPU in short order) +@@ -1495,6 +1582,7 @@ void fastcall wake_up_new_task(task_t *p + + p->prio = effective_prio(p); + ++ vx_activate_task(p); + if (likely(cpu == this_cpu)) { + if (!(clone_flags & CLONE_VM)) { + /* +@@ -1506,6 +1594,7 @@ void fastcall wake_up_new_task(task_t *p + __activate_task(p, rq); + else { + p->prio = current->prio; ++ BUG_ON(p->state & TASK_ONHOLD); + list_add_tail(&p->run_list, ¤t->run_list); + p->array = current->array; + p->array->nr_active++; +@@ -2569,13 +2658,16 @@ unsigned long long current_sched_time(co + void account_user_time(struct task_struct *p, cputime_t cputime) + { + struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat; ++ struct vx_info *vxi = p->vx_info; /* p is _always_ current */ + cputime64_t tmp; ++ int nice = (TASK_NICE(p) > 0); + + p->utime = cputime_add(p->utime, cputime); ++ vx_account_user(vxi, cputime, nice); + + /* Add user time to cpustat. */ + tmp = cputime_to_cputime64(cputime); +- if (TASK_NICE(p) > 0) ++ if (nice) + cpustat->nice = cputime64_add(cpustat->nice, tmp); + else + cpustat->user = cputime64_add(cpustat->user, tmp); +@@ -2591,10 +2683,12 @@ void account_system_time(struct task_str + cputime_t cputime) + { + struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat; ++ struct vx_info *vxi = p->vx_info; /* p is _always_ current */ + runqueue_t *rq = this_rq(); + cputime64_t tmp; + + p->stime = cputime_add(p->stime, cputime); ++ vx_account_system(vxi, cputime, (p == rq->idle)); + + /* Add system time to cpustat. */ + tmp = cputime_to_cputime64(cputime); +@@ -2654,6 +2748,10 @@ void scheduler_tick(void) + if (p == rq->idle) { + if (wake_priority_sleeper(rq)) + goto out; ++#ifdef CONFIG_VSERVER_HARDCPU_IDLE ++ if (!--rq->idle_tokens && !list_empty(&rq->hold_queue)) ++ set_need_resched(); ++#endif + rebalance_tick(cpu, rq, SCHED_IDLE); + return; + } +@@ -2686,7 +2784,7 @@ void scheduler_tick(void) + } + goto out_unlock; + } +- if (!--p->time_slice) { ++ if (vx_need_resched(p)) { + dequeue_task(p, rq->active); + set_tsk_need_resched(p); + p->prio = effective_prio(p); +@@ -2951,6 +3049,10 @@ asmlinkage void __sched schedule(void) + unsigned long long now; + unsigned long run_time; + int cpu, idx, new_prio; ++ struct vx_info *vxi; ++#ifdef CONFIG_VSERVER_HARDCPU ++ int maxidle = -HZ; ++#endif + + /* + * Test if we are atomic. Since do_exit() needs to call into +@@ -3010,12 +3112,41 @@ need_resched_nonpreemptible: + unlikely(signal_pending(prev)))) + prev->state = TASK_RUNNING; + else { +- if (prev->state == TASK_UNINTERRUPTIBLE) ++ if (prev->state == TASK_UNINTERRUPTIBLE) { + rq->nr_uninterruptible++; ++ vx_uninterruptible_inc(prev); ++ } + deactivate_task(prev, rq); + } + } + ++#ifdef CONFIG_VSERVER_HARDCPU ++ if (!list_empty(&rq->hold_queue)) { ++ struct list_head *l, *n; ++ int ret; ++ ++ vxi = NULL; ++ list_for_each_safe(l, n, &rq->hold_queue) { ++ next = list_entry(l, task_t, run_list); ++ if (vxi == next->vx_info) ++ continue; ++ ++ vxi = next->vx_info; ++ ret = vx_tokens_recalc(vxi); ++ ++ if (ret > 0) { ++ vx_unhold_task(vxi, next, rq); ++ break; ++ } ++ if ((ret < 0) && (maxidle < ret)) ++ maxidle = ret; ++ } ++ } ++ rq->idle_tokens = -maxidle; ++ ++pick_next: ++#endif ++ + cpu = smp_processor_id(); + if (unlikely(!rq->nr_running)) { + go_idle: +@@ -3063,6 +3194,22 @@ go_idle: + queue = array->queue + idx; + next = list_entry(queue->next, task_t, run_list); + ++ vxi = next->vx_info; ++#ifdef CONFIG_VSERVER_HARDCPU ++ if (vx_info_flags(vxi, VXF_SCHED_PAUSE|VXF_SCHED_HARD, 0)) { ++ int ret = vx_tokens_recalc(vxi); ++ ++ if (unlikely(ret <= 0)) { ++ if (ret && (rq->idle_tokens > -ret)) ++ rq->idle_tokens = -ret; ++ vx_hold_task(vxi, next, rq); ++ goto pick_next; ++ } ++ } else /* well, looks ugly but not as ugly as the ifdef-ed version */ ++#endif ++ if (vx_info_flags(vxi, VXF_SCHED_PRIO, 0)) ++ vx_tokens_recalc(vxi); ++ + if (!rt_task(next) && next->activated > 0) { + unsigned long long delta = now - next->timestamp; + if (unlikely((long long)(now - next->timestamp) < 0)) +@@ -3621,7 +3768,7 @@ asmlinkage long sys_nice(int increment) + nice = 19; + + if (increment < 0 && !can_nice(current, nice)) +- return -EPERM; ++ return vx_flags(VXF_IGNEG_NICE, 0) ? 0 : -EPERM; + + retval = security_task_setnice(current, nice); + if (retval) +@@ -3769,6 +3916,7 @@ recheck: + oldprio = p->prio; + __setscheduler(p, policy, param->sched_priority); + if (array) { ++ vx_activate_task(p); + __activate_task(p, rq); + /* + * Reschedule if we are currently running on this runqueue and +@@ -5622,6 +5770,9 @@ void __init sched_init(void) + INIT_LIST_HEAD(&rq->migration_queue); + #endif + atomic_set(&rq->nr_iowait, 0); ++#ifdef CONFIG_VSERVER_HARDCPU ++ INIT_LIST_HEAD(&rq->hold_queue); ++#endif + + for (j = 0; j < 2; j++) { + array = rq->arrays + j; +@@ -5691,6 +5842,7 @@ void normalize_rt_tasks(void) + deactivate_task(p, task_rq(p)); + __setscheduler(p, SCHED_NORMAL, 0); + if (array) { ++ vx_activate_task(p); + __activate_task(p, task_rq(p)); + resched_task(rq->curr); + } +Index: vserver-sources-2.0.2_2.6.15.4/kernel/signal.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/signal.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/signal.c +@@ -25,6 +25,7 @@ + #include <linux/posix-timers.h> + #include <linux/signal.h> + #include <linux/audit.h> ++#include <linux/vs_cvirt.h> + #include <asm/param.h> + #include <asm/uaccess.h> + #include <asm/unistd.h> +@@ -638,18 +639,27 @@ static int rm_from_queue(unsigned long m + static int check_kill_permission(int sig, struct siginfo *info, + struct task_struct *t) + { ++ int user; + int error = -EINVAL; ++ + if (!valid_signal(sig)) + return error; ++ ++ user = ((info == SEND_SIG_NOINFO) || ++ (!is_si_special(info) && SI_FROMUSER(info))); ++ + error = -EPERM; +- if ((info == SEND_SIG_NOINFO || (!is_si_special(info) && SI_FROMUSER(info))) +- && ((sig != SIGCONT) || ++ if (user && ((sig != SIGCONT) || + (current->signal->session != t->signal->session)) + && (current->euid ^ t->suid) && (current->euid ^ t->uid) + && (current->uid ^ t->suid) && (current->uid ^ t->uid) + && !capable(CAP_KILL)) + return error; + ++ error = -ESRCH; ++ if (user && !vx_check(vx_task_xid(t), VX_ADMIN|VX_IDENT)) ++ return error; ++ + error = security_task_kill(t, info, sig); + if (!error) + audit_signal_info(sig, t); /* Let audit system see the signal */ +@@ -1896,6 +1906,11 @@ relock: + if (current->pid == 1) + continue; + ++ /* virtual init is protected against user signals */ ++ if ((info->si_code == SI_USER) && ++ vx_current_initpid(current->pid)) ++ continue; ++ + if (sig_kernel_stop(signr)) { + /* + * The default action is to stop all threads in +Index: vserver-sources-2.0.2_2.6.15.4/kernel/sys.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/sys.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/sys.c +@@ -11,6 +11,7 @@ + #include <linux/mman.h> + #include <linux/smp_lock.h> + #include <linux/notifier.h> ++#include <linux/kmod.h> + #include <linux/reboot.h> + #include <linux/prctl.h> + #include <linux/init.h> +@@ -29,6 +30,7 @@ + #include <linux/tty.h> + #include <linux/signal.h> + #include <linux/cn_proc.h> ++#include <linux/vs_cvirt.h> + + #include <linux/compat.h> + #include <linux/syscalls.h> +@@ -233,7 +235,10 @@ static int set_one_prio(struct task_stru + goto out; + } + if (niceval < task_nice(p) && !can_nice(p, niceval)) { +- error = -EACCES; ++ if (vx_flags(VXF_IGNEG_NICE, 0)) ++ error = 0; ++ else ++ error = -EACCES; + goto out; + } + no_nice = security_task_setnice(p, niceval); +@@ -285,7 +290,8 @@ asmlinkage long sys_setpriority(int whic + if (!who) + who = current->uid; + else +- if ((who != current->uid) && !(user = find_user(who))) ++ if ((who != current->uid) && ++ !(user = find_user(vx_current_xid(), who))) + goto out_unlock; /* No processes for this user */ + + do_each_thread(g, p) +@@ -343,7 +349,8 @@ asmlinkage long sys_getpriority(int whic + if (!who) + who = current->uid; + else +- if ((who != current->uid) && !(user = find_user(who))) ++ if ((who != current->uid) && ++ !(user = find_user(vx_current_xid(), who))) + goto out_unlock; /* No processes for this user */ + + do_each_thread(g, p) +@@ -465,6 +472,8 @@ void kernel_power_off(void) + } + EXPORT_SYMBOL_GPL(kernel_power_off); + ++long vs_reboot(unsigned int, void *); ++ + /* + * Reboot system call: for obvious reasons only root may call it, + * and even root needs to set up some magic numbers in the registers +@@ -489,6 +498,9 @@ asmlinkage long sys_reboot(int magic1, i + magic2 != LINUX_REBOOT_MAGIC2C)) + return -EINVAL; + ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return vs_reboot(cmd, arg); ++ + lock_kernel(); + switch (cmd) { + case LINUX_REBOOT_CMD_RESTART: +@@ -676,7 +688,7 @@ static int set_user(uid_t new_ruid, int + { + struct user_struct *new_user; + +- new_user = alloc_uid(new_ruid); ++ new_user = alloc_uid(vx_current_xid(), new_ruid); + if (!new_user) + return -EAGAIN; + +@@ -1085,14 +1097,17 @@ asmlinkage long sys_setpgid(pid_t pid, p + { + struct task_struct *p; + int err = -EINVAL; ++ pid_t rpgid; + + if (!pid) +- pid = current->pid; ++ pid = vx_map_pid(current->pid); + if (!pgid) + pgid = pid; + if (pgid < 0) + return -EINVAL; + ++ rpgid = vx_rmap_pid(pgid); ++ + /* From this point forward we keep holding onto the tasklist lock + * so that our parent does not change from under us. -DaveM + */ +@@ -1127,22 +1142,22 @@ asmlinkage long sys_setpgid(pid_t pid, p + if (pgid != pid) { + struct task_struct *p; + +- do_each_task_pid(pgid, PIDTYPE_PGID, p) { ++ do_each_task_pid(rpgid, PIDTYPE_PGID, p) { + if (p->signal->session == current->signal->session) + goto ok_pgid; +- } while_each_task_pid(pgid, PIDTYPE_PGID, p); ++ } while_each_task_pid(rpgid, PIDTYPE_PGID, p); + goto out; + } + + ok_pgid: +- err = security_task_setpgid(p, pgid); ++ err = security_task_setpgid(p, rpgid); + if (err) + goto out; + +- if (process_group(p) != pgid) { ++ if (process_group(p) != rpgid) { + detach_pid(p, PIDTYPE_PGID); +- p->signal->pgrp = pgid; +- attach_pid(p, PIDTYPE_PGID, pgid); ++ p->signal->pgrp = rpgid; ++ attach_pid(p, PIDTYPE_PGID, rpgid); + } + + err = 0; +@@ -1155,7 +1170,7 @@ out: + asmlinkage long sys_getpgid(pid_t pid) + { + if (!pid) { +- return process_group(current); ++ return vx_rmap_pid(process_group(current)); + } else { + int retval; + struct task_struct *p; +@@ -1167,7 +1182,7 @@ asmlinkage long sys_getpgid(pid_t pid) + if (p) { + retval = security_task_getpgid(p); + if (!retval) +- retval = process_group(p); ++ retval = vx_rmap_pid(process_group(p)); + } + read_unlock(&tasklist_lock); + return retval; +@@ -1505,7 +1520,7 @@ asmlinkage long sys_newuname(struct new_ + int errno = 0; + + down_read(&uts_sem); +- if (copy_to_user(name,&system_utsname,sizeof *name)) ++ if (copy_to_user(name, vx_new_utsname(), sizeof *name)) + errno = -EFAULT; + up_read(&uts_sem); + return errno; +@@ -1516,15 +1531,17 @@ asmlinkage long sys_sethostname(char __u + int errno; + char tmp[__NEW_UTS_LEN]; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SET_UTSNAME)) + return -EPERM; + if (len < 0 || len > __NEW_UTS_LEN) + return -EINVAL; + down_write(&uts_sem); + errno = -EFAULT; + if (!copy_from_user(tmp, name, len)) { +- memcpy(system_utsname.nodename, tmp, len); +- system_utsname.nodename[len] = 0; ++ char *ptr = vx_new_uts(nodename); ++ ++ memcpy(ptr, tmp, len); ++ ptr[len] = 0; + errno = 0; + } + up_write(&uts_sem); +@@ -1536,15 +1553,17 @@ asmlinkage long sys_sethostname(char __u + asmlinkage long sys_gethostname(char __user *name, int len) + { + int i, errno; ++ char *ptr; + + if (len < 0) + return -EINVAL; + down_read(&uts_sem); +- i = 1 + strlen(system_utsname.nodename); ++ ptr = vx_new_uts(nodename); ++ i = 1 + strlen(ptr); + if (i > len) + i = len; + errno = 0; +- if (copy_to_user(name, system_utsname.nodename, i)) ++ if (copy_to_user(name, ptr, i)) + errno = -EFAULT; + up_read(&uts_sem); + return errno; +@@ -1561,7 +1580,7 @@ asmlinkage long sys_setdomainname(char _ + int errno; + char tmp[__NEW_UTS_LEN]; + +- if (!capable(CAP_SYS_ADMIN)) ++ if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SET_UTSNAME)) + return -EPERM; + if (len < 0 || len > __NEW_UTS_LEN) + return -EINVAL; +@@ -1569,8 +1588,10 @@ asmlinkage long sys_setdomainname(char _ + down_write(&uts_sem); + errno = -EFAULT; + if (!copy_from_user(tmp, name, len)) { +- memcpy(system_utsname.domainname, tmp, len); +- system_utsname.domainname[len] = 0; ++ char *ptr = vx_new_uts(domainname); ++ ++ memcpy(ptr, tmp, len); ++ ptr[len] = 0; + errno = 0; + } + up_write(&uts_sem); +@@ -1627,7 +1648,7 @@ asmlinkage long sys_setrlimit(unsigned i + return -EINVAL; + old_rlim = current->signal->rlim + resource; + if ((new_rlim.rlim_max > old_rlim->rlim_max) && +- !capable(CAP_SYS_RESOURCE)) ++ !capable(CAP_SYS_RESOURCE) && !vx_ccaps(VXC_SET_RLIMIT)) + return -EPERM; + if (resource == RLIMIT_NOFILE && new_rlim.rlim_max > NR_OPEN) + return -EPERM; +Index: vserver-sources-2.0.2_2.6.15.4/kernel/sysctl.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/sysctl.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/sysctl.c +@@ -42,6 +42,7 @@ + #include <linux/limits.h> + #include <linux/dcache.h> + #include <linux/syscalls.h> ++#include <linux/vserver/cvirt.h> + + #include <asm/uaccess.h> + #include <asm/processor.h> +@@ -89,6 +90,7 @@ extern char hotplug_path[]; + #ifdef CONFIG_FB_SPLASH + extern char fbsplash_path[]; + #endif ++extern char vshelper_path[]; + #ifdef CONFIG_CHR_DEV_SG + extern int sg_big_buff; + #endif +@@ -245,6 +247,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.sysname), + .mode = 0444, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -254,6 +257,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.release), + .mode = 0444, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -263,6 +267,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.version), + .mode = 0444, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -272,6 +277,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.nodename), + .mode = 0644, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -281,6 +287,7 @@ static ctl_table kern_table[] = { + .maxlen = sizeof(system_utsname.domainname), + .mode = 0644, + .proc_handler = &proc_doutsstring, ++ .virt_handler = &vx_uts_virt_handler, + .strategy = &sysctl_string, + }, + { +@@ -428,6 +435,15 @@ static ctl_table kern_table[] = { + .strategy = &sysctl_string, + }, + #endif ++ { ++ .ctl_name = KERN_VSHELPER, ++ .procname = "vshelper", ++ .data = &vshelper_path, ++ .maxlen = 256, ++ .mode = 0644, ++ .proc_handler = &proc_dostring, ++ .strategy = &sysctl_string, ++ }, + #ifdef CONFIG_CHR_DEV_SG + { + .ctl_name = KERN_SG_BIG_BUFF, +@@ -1521,16 +1537,20 @@ static ssize_t proc_writesys(struct file + int proc_dostring(ctl_table *table, int write, struct file *filp, + void __user *buffer, size_t *lenp, loff_t *ppos) + { +- size_t len; ++ size_t len, maxlen; + char __user *p; + char c; ++ void *data; ++ ++ data = table->data; ++ maxlen = table->maxlen; ++ ++ if (!data || !maxlen || !*lenp || (*ppos && !write)) ++ return (*lenp = 0); + +- if (!table->data || !table->maxlen || !*lenp || +- (*ppos && !write)) { +- *lenp = 0; +- return 0; +- } +- ++ if (table->virt_handler) ++ table->virt_handler(table, write, filp->f_xid, &data, &maxlen); ++ + if (write) { + len = 0; + p = buffer; +@@ -1541,20 +1561,20 @@ int proc_dostring(ctl_table *table, int + break; + len++; + } +- if (len >= table->maxlen) +- len = table->maxlen-1; +- if(copy_from_user(table->data, buffer, len)) ++ if (len >= maxlen) ++ len = maxlen-1; ++ if(copy_from_user(data, buffer, len)) + return -EFAULT; +- ((char *) table->data)[len] = 0; ++ ((char *) data)[len] = 0; + *ppos += *lenp; + } else { +- len = strlen(table->data); +- if (len > table->maxlen) +- len = table->maxlen; ++ len = strlen(data); ++ if (len > maxlen) ++ len = maxlen; + if (len > *lenp) + len = *lenp; + if (len) +- if(copy_to_user(buffer, table->data, len)) ++ if(copy_to_user(buffer, data, len)) + return -EFAULT; + if (len < *lenp) { + if(put_user('\n', ((char __user *) buffer) + len)) +Index: vserver-sources-2.0.2_2.6.15.4/kernel/timer.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/timer.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/timer.c +@@ -33,6 +33,8 @@ + #include <linux/posix-timers.h> + #include <linux/cpu.h> + #include <linux/syscalls.h> ++#include <linux/vs_cvirt.h> ++#include <linux/vserver/sched.h> + + #include <asm/uaccess.h> + #include <asm/unistd.h> +@@ -923,12 +925,6 @@ asmlinkage unsigned long sys_alarm(unsig + + #endif + +-#ifndef __alpha__ +- +-/* +- * The Alpha uses getxpid, getxuid, and getxgid instead. Maybe this +- * should be moved into arch/i386 instead? +- */ + + /** + * sys_getpid - return the thread group id of the current process +@@ -941,7 +937,7 @@ asmlinkage unsigned long sys_alarm(unsig + */ + asmlinkage long sys_getpid(void) + { +- return current->tgid; ++ return vx_map_tgid(current->tgid); + } + + /* +@@ -985,9 +981,23 @@ asmlinkage long sys_getppid(void) + #endif + break; + } +- return pid; ++ return vx_map_pid(pid); + } + ++#ifdef __alpha__ ++ ++/* ++ * The Alpha uses getxpid, getxuid, and getxgid instead. ++ */ ++ ++asmlinkage long do_getxpid(long *ppid) ++{ ++ *ppid = sys_getppid(); ++ return sys_getpid(); ++} ++ ++#else /* _alpha_ */ ++ + asmlinkage long sys_getuid(void) + { + /* Only we change this so SMP safe */ +@@ -1204,6 +1214,8 @@ asmlinkage long sys_sysinfo(struct sysin + tp.tv_nsec = tp.tv_nsec - NSEC_PER_SEC; + tp.tv_sec++; + } ++ if (vx_flags(VXF_VIRT_UPTIME, 0)) ++ vx_vsi_uptime(&tp, NULL); + val.uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0); + + val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT); +Index: vserver-sources-2.0.2_2.6.15.4/kernel/user.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/kernel/user.c ++++ vserver-sources-2.0.2_2.6.15.4/kernel/user.c +@@ -22,8 +22,8 @@ + #define UIDHASH_BITS (CONFIG_BASE_SMALL ? 3 : 8) + #define UIDHASH_SZ (1 << UIDHASH_BITS) + #define UIDHASH_MASK (UIDHASH_SZ - 1) +-#define __uidhashfn(uid) (((uid >> UIDHASH_BITS) + uid) & UIDHASH_MASK) +-#define uidhashentry(uid) (uidhash_table + __uidhashfn((uid))) ++#define __uidhashfn(xid,uid) ((((uid) >> UIDHASH_BITS) + ((uid)^(xid))) & UIDHASH_MASK) ++#define uidhashentry(xid,uid) (uidhash_table + __uidhashfn((xid),(uid))) + + static kmem_cache_t *uid_cachep; + static struct list_head uidhash_table[UIDHASH_SZ]; +@@ -55,7 +55,7 @@ static inline void uid_hash_remove(struc + list_del(&up->uidhash_list); + } + +-static inline struct user_struct *uid_hash_find(uid_t uid, struct list_head *hashent) ++static inline struct user_struct *uid_hash_find(xid_t xid, uid_t uid, struct list_head *hashent) + { + struct list_head *up; + +@@ -64,7 +64,7 @@ static inline struct user_struct *uid_ha + + user = list_entry(up, struct user_struct, uidhash_list); + +- if(user->uid == uid) { ++ if(user->uid == uid && user->xid == xid) { + atomic_inc(&user->__count); + return user; + } +@@ -79,12 +79,12 @@ static inline struct user_struct *uid_ha + * + * If the user_struct could not be found, return NULL. + */ +-struct user_struct *find_user(uid_t uid) ++struct user_struct *find_user(xid_t xid, uid_t uid) + { + struct user_struct *ret; + + spin_lock(&uidhash_lock); +- ret = uid_hash_find(uid, uidhashentry(uid)); ++ ret = uid_hash_find(xid, uid, uidhashentry(xid, uid)); + spin_unlock(&uidhash_lock); + return ret; + } +@@ -100,13 +100,13 @@ void free_uid(struct user_struct *up) + } + } + +-struct user_struct * alloc_uid(uid_t uid) ++struct user_struct * alloc_uid(xid_t xid, uid_t uid) + { +- struct list_head *hashent = uidhashentry(uid); ++ struct list_head *hashent = uidhashentry(xid, uid); + struct user_struct *up; + + spin_lock(&uidhash_lock); +- up = uid_hash_find(uid, hashent); ++ up = uid_hash_find(xid, uid, hashent); + spin_unlock(&uidhash_lock); + + if (!up) { +@@ -116,6 +116,7 @@ struct user_struct * alloc_uid(uid_t uid + if (!new) + return NULL; + new->uid = uid; ++ new->xid = xid; + atomic_set(&new->__count, 1); + atomic_set(&new->processes, 0); + atomic_set(&new->files, 0); +@@ -138,7 +139,7 @@ struct user_struct * alloc_uid(uid_t uid + * on adding the same user already.. + */ + spin_lock(&uidhash_lock); +- up = uid_hash_find(uid, hashent); ++ up = uid_hash_find(xid, uid, hashent); + if (up) { + key_put(new->uid_keyring); + key_put(new->session_keyring); +@@ -184,7 +185,7 @@ static int __init uid_cache_init(void) + + /* Insert the root user immediately (init already runs as root) */ + spin_lock(&uidhash_lock); +- uid_hash_insert(&root_user, uidhashentry(0)); ++ uid_hash_insert(&root_user, uidhashentry(0,0)); + spin_unlock(&uidhash_lock); + + return 0; +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/Kconfig +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/Kconfig +@@ -0,0 +1,179 @@ ++# ++# Linux VServer configuration ++# ++ ++config VSERVER ++ bool ++ default y ++ ++config VSERVER_SECURITY ++ bool ++ depends on SECURITY ++ default y ++ select SECURITY_CAPABILITIES ++ ++config VSERVER_LEGACYNET ++ bool ++ depends on !VSERVER_NGNET ++ default y ++ ++menu "Linux VServer" ++ ++config VSERVER_LEGACY ++ bool "Enable Legacy Kernel API" ++ default y ++ help ++ This enables the legacy API used in vs1.xx, maintaining ++ compatibility with older vserver tools, and guest images ++ that are configured using the legacy method. This is ++ probably a good idea for now, for migration purposes. ++ ++ Note that some tools have not yet been altered to use ++ this API, so disabling this option may reduce some ++ functionality. ++ ++config VSERVER_LEGACY_VERSION ++ bool "Show a Legacy Version ID" ++ depends on VSERVER_LEGACY ++ default n ++ help ++ This shows a special legacy version to very old tools ++ which do not handle the current version correctly. ++ ++ This will probably disable some features of newer tools ++ so better avoid it, unless you really, really need it ++ for backwards compatibility. ++ ++config VSERVER_NGNET ++ bool "Disable Legacy Networking Kernel API" ++ depends on EXPERIMENTAL ++ default n ++ help ++ This disables the legacy networking API which is required ++ by the chbind tool. Do not disable it unless you exactly ++ know what you are doing. ++ ++config VSERVER_PROC_SECURE ++ bool "Enable Proc Security" ++ depends on PROC_FS ++ default y ++ help ++ This configures ProcFS security to initially hide ++ non-process entries for all contexts except the main and ++ spectator context (i.e. for all guests), which is a secure ++ default. ++ ++ (note: on 1.2x the entries were visible by default) ++ ++config VSERVER_HARDCPU ++ bool "Enable Hard CPU Limits" ++ depends on EXPERIMENTAL ++ default n ++ help ++ Activate the Hard CPU Limits ++ ++ This will compile in code that allows the Token Bucket ++ Scheduler to put processes on hold when a context's ++ tokens are depleted (provided that its per-context ++ sched_hard flag is set). ++ ++ Processes belonging to that context will not be able ++ to consume CPU resources again until a per-context ++ configured minimum of tokens has been reached. ++ ++config VSERVER_HARDCPU_IDLE ++ bool "Limit the IDLE task" ++ depends on VSERVER_HARDCPU ++ default n ++ help ++ Limit the idle slices, so the the next context ++ will be scheduled as soon as possible. ++ ++ This might improve interactivity and latency, but ++ will also marginally increase scheduling overhead. ++ ++choice ++ prompt "Persistent Inode Context Tagging" ++ default INOXID_UGID24 ++ help ++ This adds persistent context information to filesystems ++ mounted with the tagxid option. Tagging is a requirement ++ for per-context disk limits and per-context quota. ++ ++ ++config INOXID_NONE ++ bool "Disabled" ++ help ++ do not store per-context information in inodes. ++ ++config INOXID_UID16 ++ bool "UID16/GID32" ++ help ++ reduces UID to 16 bit, but leaves GID at 32 bit. ++ ++config INOXID_GID16 ++ bool "UID32/GID16" ++ help ++ reduces GID to 16 bit, but leaves UID at 32 bit. ++ ++config INOXID_UGID24 ++ bool "UID24/GID24" ++ help ++ uses the upper 8bit from UID and GID for XID tagging ++ which leaves 24bit for UID/GID each, which should be ++ more than sufficient for normal use. ++ ++config INOXID_INTERN ++ bool "UID32/GID32" ++ help ++ this uses otherwise reserved inode fields in the on ++ disk representation, which limits the use to a few ++ filesystems (currently ext2 and ext3) ++ ++config INOXID_RUNTIME ++ bool "Runtime" ++ depends on EXPERIMENTAL ++ help ++ inodes are tagged when first accessed, this doesn't ++ require any persistant information, but might give ++ funny results for mixed access. ++ ++endchoice ++ ++config XID_TAG_NFSD ++ bool "Tag NFSD User Auth and Files" ++ default n ++ help ++ Enable this if you do want the in-kernel NFS ++ Server to use the xid tagging specified above. ++ (will require patched clients too) ++ ++config VSERVER_DEBUG ++ bool "VServer Debugging Code" ++ default n ++ help ++ Set this to yes if you want to be able to activate ++ debugging output at runtime. It adds a probably small ++ overhead to all vserver related functions and ++ increases the kernel size by about 20k. ++ ++config VSERVER_HISTORY ++ bool "VServer History Tracing" ++ depends on VSERVER_DEBUG ++ default n ++ help ++ Set this to yes if you want to record the history of ++ linux-vserver activities, so they can be replayed in ++ the event of a kernel panic or oops. ++ ++config VSERVER_HISTORY_SIZE ++ int "Per-CPU History Size (32-65536)" ++ depends on VSERVER_HISTORY ++ range 32 65536 ++ default 64 ++ help ++ This allows you to specify the number of entries in ++ the per-CPU history buffer. ++ ++endmenu ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/Makefile +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/Makefile +@@ -0,0 +1,16 @@ ++# ++# Makefile for the Linux vserver routines. ++# ++ ++ ++obj-y += vserver.o ++ ++vserver-y := switch.o context.o namespace.o sched.o network.o inode.o \ ++ limit.o cvirt.o signal.o helper.o init.o dlimit.o ++ ++vserver-$(CONFIG_PROC_FS) += proc.o ++vserver-$(CONFIG_VSERVER_DEBUG) += sysctl.o ++vserver-$(CONFIG_VSERVER_LEGACY) += legacy.o ++vserver-$(CONFIG_VSERVER_LEGACYNET) += legacynet.o ++vserver-$(CONFIG_VSERVER_HISTORY) += history.o ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/context.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/context.c +@@ -0,0 +1,807 @@ ++/* ++ * linux/kernel/vserver/context.c ++ * ++ * Virtual Server: Context Support ++ * ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 context helper ++ * V0.02 vx_ctx_kill syscall command ++ * V0.03 replaced context_info calls ++ * V0.04 redesign of struct (de)alloc ++ * V0.05 rlimit basic implementation ++ * V0.06 task_xid and info commands ++ * V0.07 context flags and caps ++ * V0.08 switch to RCU based hash ++ * V0.09 revert to non RCU for now ++ * V0.10 and back to working RCU hash ++ * V0.11 and back to locking again ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/slab.h> ++#include <linux/types.h> ++#include <linux/namespace.h> ++ ++#include <linux/sched.h> ++#include <linux/vserver/network.h> ++#include <linux/vserver/legacy.h> ++#include <linux/vserver/limit.h> ++#include <linux/vserver/debug.h> ++#include <linux/vserver/limit_int.h> ++ ++#include <linux/vs_context.h> ++#include <linux/vserver/context_cmd.h> ++ ++#include <linux/err.h> ++#include <asm/errno.h> ++ ++#include "cvirt_init.h" ++#include "limit_init.h" ++#include "sched_init.h" ++ ++ ++/* __alloc_vx_info() ++ ++ * allocate an initialized vx_info struct ++ * doesn't make it visible (hash) */ ++ ++static struct vx_info *__alloc_vx_info(xid_t xid) ++{ ++ struct vx_info *new = NULL; ++ ++ vxdprintk(VXD_CBIT(xid, 0), "alloc_vx_info(%d)*", xid); ++ ++ /* would this benefit from a slab cache? */ ++ new = kmalloc(sizeof(struct vx_info), GFP_KERNEL); ++ if (!new) ++ return 0; ++ ++ memset (new, 0, sizeof(struct vx_info)); ++ new->vx_id = xid; ++ INIT_HLIST_NODE(&new->vx_hlist); ++ atomic_set(&new->vx_usecnt, 0); ++ atomic_set(&new->vx_tasks, 0); ++ new->vx_parent = NULL; ++ new->vx_state = 0; ++ init_waitqueue_head(&new->vx_wait); ++ ++ /* rest of init goes here */ ++ vx_info_init_limit(&new->limit); ++ vx_info_init_sched(&new->sched); ++ vx_info_init_cvirt(&new->cvirt); ++ vx_info_init_cacct(&new->cacct); ++ ++ new->vx_flags = VXF_INIT_SET; ++ new->vx_bcaps = CAP_INIT_EFF_SET; ++ new->vx_ccaps = 0; ++ ++ vxdprintk(VXD_CBIT(xid, 0), ++ "alloc_vx_info(%d) = %p", xid, new); ++ vxh_alloc_vx_info(new); ++ return new; ++} ++ ++/* __dealloc_vx_info() ++ ++ * final disposal of vx_info */ ++ ++static void __dealloc_vx_info(struct vx_info *vxi) ++{ ++ vxdprintk(VXD_CBIT(xid, 0), ++ "dealloc_vx_info(%p)", vxi); ++ vxh_dealloc_vx_info(vxi); ++ ++ vxi->vx_hlist.next = LIST_POISON1; ++ vxi->vx_id = -1; ++ ++ vx_info_exit_limit(&vxi->limit); ++ vx_info_exit_sched(&vxi->sched); ++ vx_info_exit_cvirt(&vxi->cvirt); ++ vx_info_exit_cacct(&vxi->cacct); ++ ++ vxi->vx_state |= VXS_RELEASED; ++ kfree(vxi); ++} ++ ++static void __shutdown_vx_info(struct vx_info *vxi) ++{ ++ struct namespace *namespace; ++ struct fs_struct *fs; ++ ++ might_sleep(); ++ ++ vxi->vx_state |= VXS_SHUTDOWN; ++ vs_state_change(vxi, VSC_SHUTDOWN); ++ ++ namespace = xchg(&vxi->vx_namespace, NULL); ++ if (namespace) ++ put_namespace(namespace); ++ ++ fs = xchg(&vxi->vx_fs, NULL); ++ if (fs) ++ put_fs_struct(fs); ++} ++ ++/* exported stuff */ ++ ++void free_vx_info(struct vx_info *vxi) ++{ ++ /* context shutdown is mandatory */ ++ BUG_ON(!vx_info_state(vxi, VXS_SHUTDOWN)); ++ ++ BUG_ON(atomic_read(&vxi->vx_usecnt)); ++ BUG_ON(atomic_read(&vxi->vx_tasks)); ++ ++ BUG_ON(vx_info_state(vxi, VXS_HASHED)); ++ ++ BUG_ON(vxi->vx_namespace); ++ BUG_ON(vxi->vx_fs); ++ ++ __dealloc_vx_info(vxi); ++} ++ ++ ++/* hash table for vx_info hash */ ++ ++#define VX_HASH_SIZE 13 ++ ++struct hlist_head vx_info_hash[VX_HASH_SIZE]; ++ ++static spinlock_t vx_info_hash_lock = SPIN_LOCK_UNLOCKED; ++ ++ ++static inline unsigned int __hashval(xid_t xid) ++{ ++ return (xid % VX_HASH_SIZE); ++} ++ ++ ++ ++/* __hash_vx_info() ++ ++ * add the vxi to the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __hash_vx_info(struct vx_info *vxi) ++{ ++ struct hlist_head *head; ++ ++ vxd_assert_lock(&vx_info_hash_lock); ++ vxdprintk(VXD_CBIT(xid, 4), ++ "__hash_vx_info: %p[#%d]", vxi, vxi->vx_id); ++ vxh_hash_vx_info(vxi); ++ ++ /* context must not be hashed */ ++ BUG_ON(vx_info_state(vxi, VXS_HASHED)); ++ ++ vxi->vx_state |= VXS_HASHED; ++ head = &vx_info_hash[__hashval(vxi->vx_id)]; ++ hlist_add_head(&vxi->vx_hlist, head); ++} ++ ++/* __unhash_vx_info() ++ ++ * remove the vxi from the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __unhash_vx_info(struct vx_info *vxi) ++{ ++ vxd_assert_lock(&vx_info_hash_lock); ++ vxdprintk(VXD_CBIT(xid, 4), ++ "__unhash_vx_info: %p[#%d]", vxi, vxi->vx_id); ++ vxh_unhash_vx_info(vxi); ++ ++ /* context must be hashed */ ++ BUG_ON(!vx_info_state(vxi, VXS_HASHED)); ++ ++ vxi->vx_state &= ~VXS_HASHED; ++ hlist_del(&vxi->vx_hlist); ++} ++ ++ ++/* __lookup_vx_info() ++ ++ * requires the hash_lock to be held ++ * doesn't increment the vx_refcnt */ ++ ++static inline struct vx_info *__lookup_vx_info(xid_t xid) ++{ ++ struct hlist_head *head = &vx_info_hash[__hashval(xid)]; ++ struct hlist_node *pos; ++ struct vx_info *vxi; ++ ++ vxd_assert_lock(&vx_info_hash_lock); ++ hlist_for_each(pos, head) { ++ vxi = hlist_entry(pos, struct vx_info, vx_hlist); ++ ++ if (vxi->vx_id == xid) ++ goto found; ++ } ++ vxi = NULL; ++found: ++ vxdprintk(VXD_CBIT(xid, 0), ++ "__lookup_vx_info(#%u): %p[#%u]", ++ xid, vxi, vxi?vxi->vx_id:0); ++ vxh_lookup_vx_info(vxi, xid); ++ return vxi; ++} ++ ++ ++/* __vx_dynamic_id() ++ ++ * find unused dynamic xid ++ * requires the hash_lock to be held */ ++ ++static inline xid_t __vx_dynamic_id(void) ++{ ++ static xid_t seq = MAX_S_CONTEXT; ++ xid_t barrier = seq; ++ ++ vxd_assert_lock(&vx_info_hash_lock); ++ do { ++ if (++seq > MAX_S_CONTEXT) ++ seq = MIN_D_CONTEXT; ++ if (!__lookup_vx_info(seq)) { ++ vxdprintk(VXD_CBIT(xid, 4), ++ "__vx_dynamic_id: [#%d]", seq); ++ return seq; ++ } ++ } while (barrier != seq); ++ return 0; ++} ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ ++/* __loc_vx_info() ++ ++ * locate or create the requested context ++ * get() it and if new hash it */ ++ ++static struct vx_info * __loc_vx_info(int id, int *err) ++{ ++ struct vx_info *new, *vxi = NULL; ++ ++ vxdprintk(VXD_CBIT(xid, 1), "loc_vx_info(%d)*", id); ++ ++ if (!(new = __alloc_vx_info(id))) { ++ *err = -ENOMEM; ++ return NULL; ++ } ++ ++ /* required to make dynamic xids unique */ ++ spin_lock(&vx_info_hash_lock); ++ ++ /* dynamic context requested */ ++ if (id == VX_DYNAMIC_ID) { ++ id = __vx_dynamic_id(); ++ if (!id) { ++ printk(KERN_ERR "no dynamic context available.\n"); ++ goto out_unlock; ++ } ++ new->vx_id = id; ++ } ++ /* existing context requested */ ++ else if ((vxi = __lookup_vx_info(id))) { ++ /* context in setup is not available */ ++ if (vxi->vx_flags & VXF_STATE_SETUP) { ++ vxdprintk(VXD_CBIT(xid, 0), ++ "loc_vx_info(%d) = %p (not available)", id, vxi); ++ vxi = NULL; ++ *err = -EBUSY; ++ } else { ++ vxdprintk(VXD_CBIT(xid, 0), ++ "loc_vx_info(%d) = %p (found)", id, vxi); ++ get_vx_info(vxi); ++ *err = 0; ++ } ++ goto out_unlock; ++ } ++ ++ /* new context requested */ ++ vxdprintk(VXD_CBIT(xid, 0), ++ "loc_vx_info(%d) = %p (new)", id, new); ++ __hash_vx_info(get_vx_info(new)); ++ vxi = new, new = NULL; ++ *err = 1; ++ ++out_unlock: ++ spin_unlock(&vx_info_hash_lock); ++ vxh_loc_vx_info(vxi, id); ++ if (new) ++ __dealloc_vx_info(new); ++ return vxi; ++} ++ ++#endif ++ ++/* __create_vx_info() ++ ++ * create the requested context ++ * get() and hash it */ ++ ++static struct vx_info * __create_vx_info(int id) ++{ ++ struct vx_info *new, *vxi = NULL; ++ ++ vxdprintk(VXD_CBIT(xid, 1), "create_vx_info(%d)*", id); ++ ++ if (!(new = __alloc_vx_info(id))) ++ return ERR_PTR(-ENOMEM); ++ ++ /* required to make dynamic xids unique */ ++ spin_lock(&vx_info_hash_lock); ++ ++ /* dynamic context requested */ ++ if (id == VX_DYNAMIC_ID) { ++ id = __vx_dynamic_id(); ++ if (!id) { ++ printk(KERN_ERR "no dynamic context available.\n"); ++ vxi = ERR_PTR(-EAGAIN); ++ goto out_unlock; ++ } ++ new->vx_id = id; ++ } ++ /* static context requested */ ++ else if ((vxi = __lookup_vx_info(id))) { ++ vxdprintk(VXD_CBIT(xid, 0), ++ "create_vx_info(%d) = %p (already there)", id, vxi); ++ if (vx_info_flags(vxi, VXF_STATE_SETUP, 0)) ++ vxi = ERR_PTR(-EBUSY); ++ else ++ vxi = ERR_PTR(-EEXIST); ++ goto out_unlock; ++ } ++ /* dynamic xid creation blocker */ ++ else if (id >= MIN_D_CONTEXT) { ++ vxdprintk(VXD_CBIT(xid, 0), ++ "create_vx_info(%d) (dynamic rejected)", id); ++ vxi = ERR_PTR(-EINVAL); ++ goto out_unlock; ++ } ++ ++ /* new context */ ++ vxdprintk(VXD_CBIT(xid, 0), ++ "create_vx_info(%d) = %p (new)", id, new); ++ __hash_vx_info(get_vx_info(new)); ++ vxi = new, new = NULL; ++ ++out_unlock: ++ spin_unlock(&vx_info_hash_lock); ++ vxh_create_vx_info(IS_ERR(vxi)?NULL:vxi, id); ++ if (new) ++ __dealloc_vx_info(new); ++ return vxi; ++} ++ ++ ++/* exported stuff */ ++ ++ ++void unhash_vx_info(struct vx_info *vxi) ++{ ++ __shutdown_vx_info(vxi); ++ spin_lock(&vx_info_hash_lock); ++ __unhash_vx_info(vxi); ++ spin_unlock(&vx_info_hash_lock); ++ __wakeup_vx_info(vxi); ++} ++ ++ ++/* locate_vx_info() ++ ++ * search for a vx_info and get() it ++ * negative id means current */ ++ ++struct vx_info *locate_vx_info(int id) ++{ ++ struct vx_info *vxi = NULL; ++ ++ if (id < 0) { ++ vxi = get_vx_info(current->vx_info); ++ } else if (id > 1) { ++ spin_lock(&vx_info_hash_lock); ++ vxi = get_vx_info(__lookup_vx_info(id)); ++ spin_unlock(&vx_info_hash_lock); ++ } ++ return vxi; ++} ++ ++/* xid_is_hashed() ++ ++ * verify that xid is still hashed */ ++ ++int xid_is_hashed(xid_t xid) ++{ ++ int hashed; ++ ++ spin_lock(&vx_info_hash_lock); ++ hashed = (__lookup_vx_info(xid) != NULL); ++ spin_unlock(&vx_info_hash_lock); ++ return hashed; ++} ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ ++struct vx_info *locate_or_create_vx_info(int id) ++{ ++ int err; ++ ++ return __loc_vx_info(id, &err); ++} ++ ++#endif ++ ++#ifdef CONFIG_PROC_FS ++ ++int get_xid_list(int index, unsigned int *xids, int size) ++{ ++ int hindex, nr_xids = 0; ++ ++ for (hindex = 0; hindex < VX_HASH_SIZE; hindex++) { ++ struct hlist_head *head = &vx_info_hash[hindex]; ++ struct hlist_node *pos; ++ ++ spin_lock(&vx_info_hash_lock); ++ hlist_for_each(pos, head) { ++ struct vx_info *vxi; ++ ++ if (--index > 0) ++ continue; ++ ++ vxi = hlist_entry(pos, struct vx_info, vx_hlist); ++ xids[nr_xids] = vxi->vx_id; ++ if (++nr_xids >= size) { ++ spin_unlock(&vx_info_hash_lock); ++ goto out; ++ } ++ } ++ /* keep the lock time short */ ++ spin_unlock(&vx_info_hash_lock); ++ } ++out: ++ return nr_xids; ++} ++#endif ++ ++ ++int vx_migrate_user(struct task_struct *p, struct vx_info *vxi) ++{ ++ struct user_struct *new_user, *old_user; ++ ++ if (!p || !vxi) ++ BUG(); ++ new_user = alloc_uid(vxi->vx_id, p->uid); ++ if (!new_user) ++ return -ENOMEM; ++ ++ old_user = p->user; ++ if (new_user != old_user) { ++ atomic_inc(&new_user->processes); ++ atomic_dec(&old_user->processes); ++ p->user = new_user; ++ } ++ free_uid(old_user); ++ return 0; ++} ++ ++void vx_mask_bcaps(struct task_struct *p) ++{ ++ struct vx_info *vxi = p->vx_info; ++ ++ p->cap_effective &= vxi->vx_bcaps; ++ p->cap_inheritable &= vxi->vx_bcaps; ++ p->cap_permitted &= vxi->vx_bcaps; ++} ++ ++ ++#include <linux/file.h> ++ ++static int vx_openfd_task(struct task_struct *tsk) ++{ ++ struct files_struct *files = tsk->files; ++ struct fdtable *fdt; ++ const unsigned long *bptr; ++ int count, total; ++ ++ /* no rcu_read_lock() because of spin_lock() */ ++ spin_lock(&files->file_lock); ++ fdt = files_fdtable(files); ++ bptr = fdt->open_fds->fds_bits; ++ count = fdt->max_fds / (sizeof(unsigned long) * 8); ++ for (total = 0; count > 0; count--) { ++ if (*bptr) ++ total += hweight_long(*bptr); ++ bptr++; ++ } ++ spin_unlock(&files->file_lock); ++ return total; ++} ++ ++/* ++ * migrate task to new context ++ * gets vxi, puts old_vxi on change ++ */ ++ ++int vx_migrate_task(struct task_struct *p, struct vx_info *vxi) ++{ ++ struct vx_info *old_vxi; ++ int ret = 0; ++ ++ if (!p || !vxi) ++ BUG(); ++ ++ old_vxi = task_get_vx_info(p); ++ if (old_vxi == vxi) ++ goto out; ++ ++ vxdprintk(VXD_CBIT(xid, 5), ++ "vx_migrate_task(%p,%p[#%d.%d])", p, vxi, ++ vxi->vx_id, atomic_read(&vxi->vx_usecnt)); ++ ++ if (!(ret = vx_migrate_user(p, vxi))) { ++ int openfd; ++ ++ task_lock(p); ++ openfd = vx_openfd_task(p); ++ ++ if (old_vxi) { ++ atomic_dec(&old_vxi->cvirt.nr_threads); ++ atomic_dec(&old_vxi->cvirt.nr_running); ++ atomic_dec(&old_vxi->limit.rcur[RLIMIT_NPROC]); ++ /* FIXME: what about the struct files here? */ ++ atomic_sub(openfd, &old_vxi->limit.rcur[VLIMIT_OPENFD]); ++ } ++ atomic_inc(&vxi->cvirt.nr_threads); ++ atomic_inc(&vxi->cvirt.nr_running); ++ atomic_inc(&vxi->limit.rcur[RLIMIT_NPROC]); ++ /* FIXME: what about the struct files here? */ ++ atomic_add(openfd, &vxi->limit.rcur[VLIMIT_OPENFD]); ++ ++ if (old_vxi) { ++ release_vx_info(old_vxi, p); ++ clr_vx_info(&p->vx_info); ++ } ++ claim_vx_info(vxi, p); ++ set_vx_info(&p->vx_info, vxi); ++ p->xid = vxi->vx_id; ++ ++ vxdprintk(VXD_CBIT(xid, 5), ++ "moved task %p into vxi:%p[#%d]", ++ p, vxi, vxi->vx_id); ++ ++ vx_mask_bcaps(p); ++ task_unlock(p); ++ } ++out: ++ put_vx_info(old_vxi); ++ return ret; ++} ++ ++int vx_set_init(struct vx_info *vxi, struct task_struct *p) ++{ ++ if (!vxi) ++ return -EINVAL; ++ if (vxi->vx_initpid) ++ return -EPERM; ++ ++ vxdprintk(VXD_CBIT(xid, 6), ++ "vx_set_init(%p[#%d],%p[#%d,%d,%d])", ++ vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid); ++ ++ vxi->vx_initpid = p->tgid; ++ return 0; ++} ++ ++ ++/* vserver syscall commands below here */ ++ ++/* taks xid and vx_info functions */ ++ ++#include <asm/uaccess.h> ++ ++ ++int vc_task_xid(uint32_t id, void __user *data) ++{ ++ xid_t xid; ++ ++ if (id) { ++ struct task_struct *tsk; ++ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return -EPERM; ++ ++ read_lock(&tasklist_lock); ++ tsk = find_task_by_real_pid(id); ++ xid = (tsk) ? tsk->xid : -ESRCH; ++ read_unlock(&tasklist_lock); ++ } ++ else ++ xid = vx_current_xid(); ++ return xid; ++} ++ ++ ++int vc_vx_info(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_vx_info_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE)) ++ return -EPERM; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vc_data.xid = vxi->vx_id; ++ vc_data.initpid = vxi->vx_initpid; ++ put_vx_info(vxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++ ++/* context functions */ ++ ++int vc_ctx_create(uint32_t xid, void __user *data) ++{ ++ struct vcmd_ctx_create vc_data = { .flagword = VXF_INIT_SET }; ++ struct vx_info *new_vxi; ++ int ret; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ if ((xid > MAX_S_CONTEXT) && (xid != VX_DYNAMIC_ID)) ++ return -EINVAL; ++ if (xid < 2) ++ return -EINVAL; ++ ++ new_vxi = __create_vx_info(xid); ++ if (IS_ERR(new_vxi)) ++ return PTR_ERR(new_vxi); ++ ++ /* initial flags */ ++ new_vxi->vx_flags = vc_data.flagword; ++ ++ vs_state_change(new_vxi, VSC_STARTUP); ++ ret = new_vxi->vx_id; ++ vx_migrate_task(current, new_vxi); ++ /* if this fails, we might end up with a hashed vx_info */ ++ put_vx_info(new_vxi); ++ return ret; ++} ++ ++ ++int vc_ctx_migrate(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ /* dirty hack until Spectator becomes a cap */ ++ if (id == 1) { ++ current->xid = 1; ++ return 0; ++ } ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ vx_migrate_task(current, vxi); ++ put_vx_info(vxi); ++ return 0; ++} ++ ++ ++int vc_get_cflags(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_flags_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vc_data.flagword = vxi->vx_flags; ++ ++ /* special STATE flag handling */ ++ vc_data.mask = vx_mask_flags(~0UL, vxi->vx_flags, VXF_ONE_TIME); ++ ++ put_vx_info(vxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_cflags(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_flags_v0 vc_data; ++ uint64_t mask, trigger; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ /* special STATE flag handling */ ++ mask = vx_mask_mask(vc_data.mask, vxi->vx_flags, VXF_ONE_TIME); ++ trigger = (mask & vxi->vx_flags) ^ (mask & vc_data.flagword); ++ ++ if (trigger & VXF_STATE_SETUP) ++ vx_mask_bcaps(current); ++ if (trigger & VXF_STATE_INIT) ++ if (vxi == current->vx_info) ++ vx_set_init(vxi, current); ++ ++ vxi->vx_flags = vx_mask_flags(vxi->vx_flags, ++ vc_data.flagword, mask); ++ put_vx_info(vxi); ++ return 0; ++} ++ ++int vc_get_ccaps(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_caps_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vc_data.bcaps = vxi->vx_bcaps; ++ vc_data.ccaps = vxi->vx_ccaps; ++ vc_data.cmask = ~0UL; ++ put_vx_info(vxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_ccaps(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_caps_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vxi->vx_bcaps &= vc_data.bcaps; ++ vxi->vx_ccaps = vx_mask_flags(vxi->vx_ccaps, ++ vc_data.ccaps, vc_data.cmask); ++ put_vx_info(vxi); ++ return 0; ++} ++ ++#include <linux/module.h> ++ ++EXPORT_SYMBOL_GPL(free_vx_info); ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/cvirt.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/cvirt.c +@@ -0,0 +1,259 @@ ++/* ++ * linux/kernel/vserver/cvirt.c ++ * ++ * Virtual Server: Context Virtualization ++ * ++ * Copyright (C) 2004-2006 Herbert Pötzl ++ * ++ * V0.01 broken out from limit.c ++ * V0.02 added utsname stuff ++ * ++ */ ++ ++#include <linux/sched.h> ++#include <linux/sysctl.h> ++#include <linux/types.h> ++#include <linux/vs_context.h> ++#include <linux/vs_cvirt.h> ++#include <linux/vserver/switch.h> ++#include <linux/vserver/cvirt_cmd.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++void vx_vsi_uptime(struct timespec *uptime, struct timespec *idle) ++{ ++ struct vx_info *vxi = current->vx_info; ++ ++ set_normalized_timespec(uptime, ++ uptime->tv_sec - vxi->cvirt.bias_uptime.tv_sec, ++ uptime->tv_nsec - vxi->cvirt.bias_uptime.tv_nsec); ++ if (!idle) ++ return; ++ set_normalized_timespec(idle, ++ idle->tv_sec - vxi->cvirt.bias_idle.tv_sec, ++ idle->tv_nsec - vxi->cvirt.bias_idle.tv_nsec); ++ return; ++} ++ ++uint64_t vx_idle_jiffies(void) ++{ ++ return init_task.utime + init_task.stime; ++} ++ ++ ++ ++static inline uint32_t __update_loadavg(uint32_t load, ++ int wsize, int delta, int n) ++{ ++ unsigned long long calc, prev; ++ ++ /* just set it to n */ ++ if (unlikely(delta >= wsize)) ++ return (n << FSHIFT); ++ ++ calc = delta * n; ++ calc <<= FSHIFT; ++ prev = (wsize - delta); ++ prev *= load; ++ calc += prev; ++ do_div(calc, wsize); ++ return calc; ++} ++ ++ ++void vx_update_load(struct vx_info *vxi) ++{ ++ uint32_t now, last, delta; ++ unsigned int nr_running, nr_uninterruptible; ++ unsigned int total; ++ ++ spin_lock(&vxi->cvirt.load_lock); ++ ++ now = jiffies; ++ last = vxi->cvirt.load_last; ++ delta = now - last; ++ ++ if (delta < 5*HZ) ++ goto out; ++ ++ nr_running = atomic_read(&vxi->cvirt.nr_running); ++ nr_uninterruptible = atomic_read(&vxi->cvirt.nr_uninterruptible); ++ total = nr_running + nr_uninterruptible; ++ ++ vxi->cvirt.load[0] = __update_loadavg(vxi->cvirt.load[0], ++ 60*HZ, delta, total); ++ vxi->cvirt.load[1] = __update_loadavg(vxi->cvirt.load[1], ++ 5*60*HZ, delta, total); ++ vxi->cvirt.load[2] = __update_loadavg(vxi->cvirt.load[2], ++ 15*60*HZ, delta, total); ++ ++ vxi->cvirt.load_last = now; ++out: ++ atomic_inc(&vxi->cvirt.load_updates); ++ spin_unlock(&vxi->cvirt.load_lock); ++} ++ ++ ++int vx_uts_virt_handler(struct ctl_table *ctl, int write, xid_t xid, ++ void **datap, size_t *lenp) ++{ ++ switch (ctl->ctl_name) { ++ case KERN_OSTYPE: ++ *datap = vx_new_uts(sysname); ++ break; ++ case KERN_OSRELEASE: ++ *datap = vx_new_uts(release); ++ break; ++ case KERN_VERSION: ++ *datap = vx_new_uts(version); ++ break; ++ case KERN_NODENAME: ++ *datap = vx_new_uts(nodename); ++ break; ++ case KERN_DOMAINNAME: ++ *datap = vx_new_uts(domainname); ++ break; ++ } ++ ++ return 0; ++} ++ ++ ++ ++/* ++ * Commands to do_syslog: ++ * ++ * 0 -- Close the log. Currently a NOP. ++ * 1 -- Open the log. Currently a NOP. ++ * 2 -- Read from the log. ++ * 3 -- Read all messages remaining in the ring buffer. ++ * 4 -- Read and clear all messages remaining in the ring buffer ++ * 5 -- Clear ring buffer. ++ * 6 -- Disable printk's to console ++ * 7 -- Enable printk's to console ++ * 8 -- Set level of messages printed to console ++ * 9 -- Return number of unread characters in the log buffer ++ * 10 -- Return size of the log buffer ++ */ ++int vx_do_syslog(int type, char __user *buf, int len) ++{ ++ int error = 0; ++ int do_clear = 0; ++ struct vx_info *vxi = current->vx_info; ++ struct _vx_syslog *log; ++ ++ if (!vxi) ++ return -EINVAL; ++ log = &vxi->cvirt.syslog; ++ ++ switch (type) { ++ case 0: /* Close log */ ++ case 1: /* Open log */ ++ break; ++ case 2: /* Read from log */ ++ error = wait_event_interruptible(log->log_wait, ++ (log->log_start - log->log_end)); ++ if (error) ++ break; ++ spin_lock_irq(&log->logbuf_lock); ++ spin_unlock_irq(&log->logbuf_lock); ++ break; ++ case 4: /* Read/clear last kernel messages */ ++ do_clear = 1; ++ /* fall through */ ++ case 3: /* Read last kernel messages */ ++ return 0; ++ ++ case 5: /* Clear ring buffer */ ++ return 0; ++ ++ case 6: /* Disable logging to console */ ++ case 7: /* Enable logging to console */ ++ case 8: /* Set level of messages printed to console */ ++ break; ++ ++ case 9: /* Number of chars in the log buffer */ ++ return 0; ++ case 10: /* Size of the log buffer */ ++ return 0; ++ default: ++ error = -EINVAL; ++ break; ++ } ++ return error; ++} ++ ++ ++/* virtual host info names */ ++ ++static char * vx_vhi_name(struct vx_info *vxi, int id) ++{ ++ switch (id) { ++ case VHIN_CONTEXT: ++ return vxi->vx_name; ++ case VHIN_SYSNAME: ++ return vxi->cvirt.utsname.sysname; ++ case VHIN_NODENAME: ++ return vxi->cvirt.utsname.nodename; ++ case VHIN_RELEASE: ++ return vxi->cvirt.utsname.release; ++ case VHIN_VERSION: ++ return vxi->cvirt.utsname.version; ++ case VHIN_MACHINE: ++ return vxi->cvirt.utsname.machine; ++ case VHIN_DOMAINNAME: ++ return vxi->cvirt.utsname.domainname; ++ default: ++ return NULL; ++ } ++ return NULL; ++} ++ ++int vc_set_vhi_name(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_vhi_name_v0 vc_data; ++ char *name; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ name = vx_vhi_name(vxi, vc_data.field); ++ if (name) ++ memcpy(name, vc_data.name, 65); ++ put_vx_info(vxi); ++ return (name ? 0 : -EFAULT); ++} ++ ++int vc_get_vhi_name(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_vhi_name_v0 vc_data; ++ char *name; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ name = vx_vhi_name(vxi, vc_data.field); ++ if (!name) ++ goto out_put; ++ ++ memcpy(vc_data.name, name, 65); ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++out_put: ++ put_vx_info(vxi); ++ return (name ? 0 : -EFAULT); ++} +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/cvirt_init.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/cvirt_init.h +@@ -0,0 +1,83 @@ ++ ++#include <linux/config.h> ++ ++ ++#include <linux/config.h> ++ ++ ++extern uint64_t vx_idle_jiffies(void); ++ ++static inline void vx_info_init_cvirt(struct _vx_cvirt *cvirt) ++{ ++ uint64_t idle_jiffies = vx_idle_jiffies(); ++ uint64_t nsuptime; ++ ++ do_posix_clock_monotonic_gettime(&cvirt->bias_uptime); ++ nsuptime = (unsigned long long)cvirt->bias_uptime.tv_sec ++ * NSEC_PER_SEC + cvirt->bias_uptime.tv_nsec; ++ cvirt->bias_clock = nsec_to_clock_t(nsuptime); ++ ++ jiffies_to_timespec(idle_jiffies, &cvirt->bias_idle); ++ atomic_set(&cvirt->nr_threads, 0); ++ atomic_set(&cvirt->nr_running, 0); ++ atomic_set(&cvirt->nr_uninterruptible, 0); ++ atomic_set(&cvirt->nr_onhold, 0); ++ ++ down_read(&uts_sem); ++ cvirt->utsname = system_utsname; ++ up_read(&uts_sem); ++ ++ spin_lock_init(&cvirt->load_lock); ++ cvirt->load_last = jiffies; ++ atomic_set(&cvirt->load_updates, 0); ++ cvirt->load[0] = 0; ++ cvirt->load[1] = 0; ++ cvirt->load[2] = 0; ++ ++ atomic_set(&cvirt->total_forks, 0); ++ spin_lock_init(&cvirt->syslog.logbuf_lock); ++ init_waitqueue_head(&cvirt->syslog.log_wait); ++ cvirt->syslog.log_start = 0; ++ cvirt->syslog.log_end = 0; ++ cvirt->syslog.con_start = 0; ++ cvirt->syslog.logged_chars = 0; ++} ++ ++static inline void vx_info_exit_cvirt(struct _vx_cvirt *cvirt) ++{ ++#ifdef CONFIG_VSERVER_DEBUG ++ int value; ++ ++ vxwprintk((value = atomic_read(&cvirt->nr_threads)), ++ "!!! cvirt: %p[nr_threads] = %d on exit.", ++ cvirt, value); ++ vxwprintk((value = atomic_read(&cvirt->nr_running)), ++ "!!! cvirt: %p[nr_running] = %d on exit.", ++ cvirt, value); ++ vxwprintk((value = atomic_read(&cvirt->nr_uninterruptible)), ++ "!!! cvirt: %p[nr_uninterruptible] = %d on exit.", ++ cvirt, value); ++ vxwprintk((value = atomic_read(&cvirt->nr_onhold)), ++ "!!! cvirt: %p[nr_onhold] = %d on exit.", ++ cvirt, value); ++#endif ++ return; ++} ++ ++static inline void vx_info_init_cacct(struct _vx_cacct *cacct) ++{ ++ int i,j; ++ ++ for (i=0; i<5; i++) { ++ for (j=0; j<3; j++) { ++ atomic_set(&cacct->sock[i][j].count, 0); ++ atomic_set(&cacct->sock[i][j].total, 0); ++ } ++ } ++} ++ ++static inline void vx_info_exit_cacct(struct _vx_cacct *cacct) ++{ ++ return; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/cvirt_proc.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/cvirt_proc.h +@@ -0,0 +1,92 @@ ++#ifndef _VX_CVIRT_PROC_H ++#define _VX_CVIRT_PROC_H ++ ++#include <linux/sched.h> ++ ++ ++#define LOAD_INT(x) ((x) >> FSHIFT) ++#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100) ++ ++static inline int vx_info_proc_cvirt(struct _vx_cvirt *cvirt, char *buffer) ++{ ++ int length = 0; ++ int a, b, c; ++ ++ length += sprintf(buffer + length, ++ "BiasUptime:\t%lu.%02lu\n", ++ (unsigned long)cvirt->bias_uptime.tv_sec, ++ (cvirt->bias_uptime.tv_nsec / (NSEC_PER_SEC / 100))); ++ length += sprintf(buffer + length, ++ "SysName:\t%.*s\n" ++ "NodeName:\t%.*s\n" ++ "Release:\t%.*s\n" ++ "Version:\t%.*s\n" ++ "Machine:\t%.*s\n" ++ "DomainName:\t%.*s\n" ++ ,__NEW_UTS_LEN, cvirt->utsname.sysname ++ ,__NEW_UTS_LEN, cvirt->utsname.nodename ++ ,__NEW_UTS_LEN, cvirt->utsname.release ++ ,__NEW_UTS_LEN, cvirt->utsname.version ++ ,__NEW_UTS_LEN, cvirt->utsname.machine ++ ,__NEW_UTS_LEN, cvirt->utsname.domainname ++ ); ++ ++ a = cvirt->load[0] + (FIXED_1/200); ++ b = cvirt->load[1] + (FIXED_1/200); ++ c = cvirt->load[2] + (FIXED_1/200); ++ length += sprintf(buffer + length, ++ "nr_threads:\t%d\n" ++ "nr_running:\t%d\n" ++ "nr_unintr:\t%d\n" ++ "nr_onhold:\t%d\n" ++ "load_updates:\t%d\n" ++ "loadavg:\t%d.%02d %d.%02d %d.%02d\n" ++ "total_forks:\t%d\n" ++ ,atomic_read(&cvirt->nr_threads) ++ ,atomic_read(&cvirt->nr_running) ++ ,atomic_read(&cvirt->nr_uninterruptible) ++ ,atomic_read(&cvirt->nr_onhold) ++ ,atomic_read(&cvirt->load_updates) ++ ,LOAD_INT(a), LOAD_FRAC(a) ++ ,LOAD_INT(b), LOAD_FRAC(b) ++ ,LOAD_INT(c), LOAD_FRAC(c) ++ ,atomic_read(&cvirt->total_forks) ++ ); ++ return length; ++} ++ ++ ++static inline long vx_sock_count(struct _vx_cacct *cacct, int type, int pos) ++{ ++ return atomic_read(&cacct->sock[type][pos].count); ++} ++ ++ ++static inline long vx_sock_total(struct _vx_cacct *cacct, int type, int pos) ++{ ++ return atomic_read(&cacct->sock[type][pos].total); ++} ++ ++static inline int vx_info_proc_cacct(struct _vx_cacct *cacct, char *buffer) ++{ ++ int i,j, length = 0; ++ static char *type[] = { "UNSPEC", "UNIX", "INET", "INET6", "OTHER" }; ++ ++ for (i=0; i<5; i++) { ++ length += sprintf(buffer + length, ++ "%s:", type[i]); ++ for (j=0; j<3; j++) { ++ length += sprintf(buffer + length, ++ "\t%12lu/%-12lu" ++ ,vx_sock_count(cacct, i, j) ++ ,vx_sock_total(cacct, i, j) ++ ); ++ } ++ buffer[length++] = '\n'; ++ } ++ length += sprintf(buffer + length, ++ "forks:\t%lu\n", cacct->total_forks); ++ return length; ++} ++ ++#endif /* _VX_CVIRT_PROC_H */ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/dlimit.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/dlimit.c +@@ -0,0 +1,552 @@ ++/* ++ * linux/kernel/vserver/dlimit.c ++ * ++ * Virtual Server: Context Disk Limits ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 initial version ++ * V0.02 compat32 splitup ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/fs.h> ++#include <linux/namespace.h> ++#include <linux/namei.h> ++#include <linux/statfs.h> ++#include <linux/compat.h> ++#include <linux/vserver/switch.h> ++#include <linux/vs_context.h> ++#include <linux/vs_dlimit.h> ++#include <linux/vserver/dlimit_cmd.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++/* __alloc_dl_info() ++ ++ * allocate an initialized dl_info struct ++ * doesn't make it visible (hash) */ ++ ++static struct dl_info *__alloc_dl_info(struct super_block *sb, xid_t xid) ++{ ++ struct dl_info *new = NULL; ++ ++ vxdprintk(VXD_CBIT(dlim, 5), ++ "alloc_dl_info(%p,%d)*", sb, xid); ++ ++ /* would this benefit from a slab cache? */ ++ new = kmalloc(sizeof(struct dl_info), GFP_KERNEL); ++ if (!new) ++ return 0; ++ ++ memset (new, 0, sizeof(struct dl_info)); ++ new->dl_xid = xid; ++ new->dl_sb = sb; ++ INIT_RCU_HEAD(&new->dl_rcu); ++ INIT_HLIST_NODE(&new->dl_hlist); ++ spin_lock_init(&new->dl_lock); ++ atomic_set(&new->dl_refcnt, 0); ++ atomic_set(&new->dl_usecnt, 0); ++ ++ /* rest of init goes here */ ++ ++ vxdprintk(VXD_CBIT(dlim, 4), ++ "alloc_dl_info(%p,%d) = %p", sb, xid, new); ++ return new; ++} ++ ++/* __dealloc_dl_info() ++ ++ * final disposal of dl_info */ ++ ++static void __dealloc_dl_info(struct dl_info *dli) ++{ ++ vxdprintk(VXD_CBIT(dlim, 4), ++ "dealloc_dl_info(%p)", dli); ++ ++ dli->dl_hlist.next = LIST_POISON1; ++ dli->dl_xid = -1; ++ dli->dl_sb = 0; ++ ++ BUG_ON(atomic_read(&dli->dl_usecnt)); ++ BUG_ON(atomic_read(&dli->dl_refcnt)); ++ ++ kfree(dli); ++} ++ ++ ++/* hash table for dl_info hash */ ++ ++#define DL_HASH_SIZE 13 ++ ++struct hlist_head dl_info_hash[DL_HASH_SIZE]; ++ ++static spinlock_t dl_info_hash_lock = SPIN_LOCK_UNLOCKED; ++ ++ ++static inline unsigned int __hashval(struct super_block *sb, xid_t xid) ++{ ++ return ((xid ^ (unsigned long)sb) % DL_HASH_SIZE); ++} ++ ++ ++ ++/* __hash_dl_info() ++ ++ * add the dli to the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __hash_dl_info(struct dl_info *dli) ++{ ++ struct hlist_head *head; ++ ++ vxdprintk(VXD_CBIT(dlim, 6), ++ "__hash_dl_info: %p[#%d]", dli, dli->dl_xid); ++ get_dl_info(dli); ++ head = &dl_info_hash[__hashval(dli->dl_sb, dli->dl_xid)]; ++ hlist_add_head_rcu(&dli->dl_hlist, head); ++} ++ ++/* __unhash_dl_info() ++ ++ * remove the dli from the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __unhash_dl_info(struct dl_info *dli) ++{ ++ vxdprintk(VXD_CBIT(dlim, 6), ++ "__unhash_dl_info: %p[#%d]", dli, dli->dl_xid); ++ hlist_del_rcu(&dli->dl_hlist); ++ put_dl_info(dli); ++} ++ ++ ++/* __lookup_dl_info() ++ ++ * requires the rcu_read_lock() ++ * doesn't increment the dl_refcnt */ ++ ++static inline struct dl_info *__lookup_dl_info(struct super_block *sb, xid_t xid) ++{ ++ struct hlist_head *head = &dl_info_hash[__hashval(sb, xid)]; ++ struct hlist_node *pos; ++ struct dl_info *dli; ++ ++ hlist_for_each_entry_rcu(dli, pos, head, dl_hlist) { ++// hlist_for_each_rcu(pos, head) { ++// struct dl_info *dli = ++// hlist_entry(pos, struct dl_info, dl_hlist); ++ ++ if (dli->dl_xid == xid && dli->dl_sb == sb) { ++ return dli; ++ } ++ } ++ return NULL; ++} ++ ++ ++struct dl_info *locate_dl_info(struct super_block *sb, xid_t xid) ++{ ++ struct dl_info *dli; ++ ++ rcu_read_lock(); ++ dli = get_dl_info(__lookup_dl_info(sb, xid)); ++ vxdprintk(VXD_CBIT(dlim, 7), ++ "locate_dl_info(%p,#%d) = %p", sb, xid, dli); ++ rcu_read_unlock(); ++ return dli; ++} ++ ++void rcu_free_dl_info(struct rcu_head *head) ++{ ++ struct dl_info *dli = container_of(head, struct dl_info, dl_rcu); ++ int usecnt, refcnt; ++ ++ BUG_ON(!dli || !head); ++ ++ usecnt = atomic_read(&dli->dl_usecnt); ++ BUG_ON(usecnt < 0); ++ ++ refcnt = atomic_read(&dli->dl_refcnt); ++ BUG_ON(refcnt < 0); ++ ++ vxdprintk(VXD_CBIT(dlim, 3), ++ "rcu_free_dl_info(%p)", dli); ++ if (!usecnt) ++ __dealloc_dl_info(dli); ++ else ++ printk("!!! rcu didn't free\n"); ++} ++ ++ ++ ++ ++int do_addrem_dlimit(uint32_t id, const char __user *name, ++ uint32_t flags, int add) ++{ ++ struct nameidata nd; ++ int ret; ++ ++ ret = user_path_walk_link(name, &nd); ++ if (!ret) { ++ struct super_block *sb; ++ struct dl_info *dli; ++ ++ ret = -EINVAL; ++ if (!nd.dentry->d_inode) ++ goto out_release; ++ if (!(sb = nd.dentry->d_inode->i_sb)) ++ goto out_release; ++ ++ if (add) { ++ dli = __alloc_dl_info(sb, id); ++ spin_lock(&dl_info_hash_lock); ++ ++ ret = -EEXIST; ++ if (__lookup_dl_info(sb, id)) ++ goto out_unlock; ++ __hash_dl_info(dli); ++ dli = NULL; ++ } else { ++ spin_lock(&dl_info_hash_lock); ++ dli = __lookup_dl_info(sb, id); ++ ++ ret = -ESRCH; ++ if (!dli) ++ goto out_unlock; ++ __unhash_dl_info(dli); ++ } ++ ret = 0; ++ out_unlock: ++ spin_unlock(&dl_info_hash_lock); ++ if (add && dli) ++ __dealloc_dl_info(dli); ++ out_release: ++ path_release(&nd); ++ } ++ return ret; ++} ++ ++int vc_add_dlimit(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_base_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 1); ++} ++ ++int vc_rem_dlimit(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_base_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 0); ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_add_dlimit_x32(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_base_v0_x32 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_addrem_dlimit(id, ++ compat_ptr(vc_data.name_ptr), vc_data.flags, 1); ++} ++ ++int vc_rem_dlimit_x32(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_base_v0_x32 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_addrem_dlimit(id, ++ compat_ptr(vc_data.name_ptr), vc_data.flags, 0); ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++ ++static inline ++int do_set_dlimit(uint32_t id, const char __user *name, ++ uint32_t space_used, uint32_t space_total, ++ uint32_t inodes_used, uint32_t inodes_total, ++ uint32_t reserved, uint32_t flags) ++{ ++ struct nameidata nd; ++ int ret; ++ ++ ret = user_path_walk_link(name, &nd); ++ if (!ret) { ++ struct super_block *sb; ++ struct dl_info *dli; ++ ++ ret = -EINVAL; ++ if (!nd.dentry->d_inode) ++ goto out_release; ++ if (!(sb = nd.dentry->d_inode->i_sb)) ++ goto out_release; ++ if ((reserved != (uint32_t)CDLIM_KEEP && ++ reserved > 100) || ++ (inodes_used != (uint32_t)CDLIM_KEEP && ++ inodes_used > inodes_total) || ++ (space_used != (uint32_t)CDLIM_KEEP && ++ space_used > space_total)) ++ goto out_release; ++ ++ ret = -ESRCH; ++ dli = locate_dl_info(sb, id); ++ if (!dli) ++ goto out_release; ++ ++ spin_lock(&dli->dl_lock); ++ ++ if (inodes_used != (uint32_t)CDLIM_KEEP) ++ dli->dl_inodes_used = inodes_used; ++ if (inodes_total != (uint32_t)CDLIM_KEEP) ++ dli->dl_inodes_total = inodes_total; ++ if (space_used != (uint32_t)CDLIM_KEEP) { ++ dli->dl_space_used = space_used; ++ dli->dl_space_used <<= 10; ++ } ++ if (space_total == (uint32_t)CDLIM_INFINITY) ++ dli->dl_space_total = (uint64_t)CDLIM_INFINITY; ++ else if (space_total != (uint32_t)CDLIM_KEEP) { ++ dli->dl_space_total = space_total; ++ dli->dl_space_total <<= 10; ++ } ++ if (reserved != (uint32_t)CDLIM_KEEP) ++ dli->dl_nrlmult = (1 << 10) * (100 - reserved) / 100; ++ ++ spin_unlock(&dli->dl_lock); ++ ++ put_dl_info(dli); ++ ret = 0; ++ ++ out_release: ++ path_release(&nd); ++ } ++ return ret; ++} ++ ++int vc_set_dlimit(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_set_dlimit(id, vc_data.name, ++ vc_data.space_used, vc_data.space_total, ++ vc_data.inodes_used, vc_data.inodes_total, ++ vc_data.reserved, vc_data.flags); ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_set_dlimit_x32(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_v0_x32 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ return do_set_dlimit(id, compat_ptr(vc_data.name_ptr), ++ vc_data.space_used, vc_data.space_total, ++ vc_data.inodes_used, vc_data.inodes_total, ++ vc_data.reserved, vc_data.flags); ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++ ++static inline ++int do_get_dlimit(uint32_t id, const char __user *name, ++ uint32_t *space_used, uint32_t *space_total, ++ uint32_t *inodes_used, uint32_t *inodes_total, ++ uint32_t *reserved, uint32_t *flags) ++{ ++ struct nameidata nd; ++ int ret; ++ ++ ret = user_path_walk_link(name, &nd); ++ if (!ret) { ++ struct super_block *sb; ++ struct dl_info *dli; ++ ++ ret = -EINVAL; ++ if (!nd.dentry->d_inode) ++ goto out_release; ++ if (!(sb = nd.dentry->d_inode->i_sb)) ++ goto out_release; ++ ++ ret = -ESRCH; ++ dli = locate_dl_info(sb, id); ++ if (!dli) ++ goto out_release; ++ ++ spin_lock(&dli->dl_lock); ++ *inodes_used = dli->dl_inodes_used; ++ *inodes_total = dli->dl_inodes_total; ++ *space_used = dli->dl_space_used >> 10; ++ if (dli->dl_space_total == (uint64_t)CDLIM_INFINITY) ++ *space_total = (uint32_t)CDLIM_INFINITY; ++ else ++ *space_total = dli->dl_space_total >> 10; ++ ++ *reserved = 100 - ((dli->dl_nrlmult * 100 + 512) >> 10); ++ spin_unlock(&dli->dl_lock); ++ ++ put_dl_info(dli); ++ ret = -EFAULT; ++ ++ ret = 0; ++ out_release: ++ path_release(&nd); ++ } ++ return ret; ++} ++ ++ ++int vc_get_dlimit(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_v0 vc_data; ++ int ret; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = do_get_dlimit(id, vc_data.name, ++ &vc_data.space_used, &vc_data.space_total, ++ &vc_data.inodes_used, &vc_data.inodes_total, ++ &vc_data.reserved, &vc_data.flags); ++ if (ret) ++ return ret; ++ ++ if (copy_to_user(data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_get_dlimit_x32(uint32_t id, void __user *data) ++{ ++ struct vcmd_ctx_dlimit_v0_x32 vc_data; ++ int ret; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = do_get_dlimit(id, compat_ptr(vc_data.name_ptr), ++ &vc_data.space_used, &vc_data.space_total, ++ &vc_data.inodes_used, &vc_data.inodes_total, ++ &vc_data.reserved, &vc_data.flags); ++ if (ret) ++ return ret; ++ ++ if (copy_to_user(data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++ ++void vx_vsi_statfs(struct super_block *sb, struct kstatfs *buf) ++{ ++ struct dl_info *dli; ++ __u64 blimit, bfree, bavail; ++ __u32 ifree; ++ ++ dli = locate_dl_info(sb, vx_current_xid()); ++ if (!dli) ++ return; ++ ++ spin_lock(&dli->dl_lock); ++ if (dli->dl_inodes_total == (uint32_t)CDLIM_INFINITY) ++ goto no_ilim; ++ ++ /* reduce max inodes available to limit */ ++ if (buf->f_files > dli->dl_inodes_total) ++ buf->f_files = dli->dl_inodes_total; ++ ++ /* inode hack for reiserfs */ ++ if ((buf->f_files == 0) && (dli->dl_inodes_total > 0)) { ++ buf->f_files = dli->dl_inodes_total; ++ buf->f_ffree = dli->dl_inodes_total; ++ } ++ ++ ifree = dli->dl_inodes_total - dli->dl_inodes_used; ++ /* reduce free inodes to min */ ++ if (ifree < buf->f_ffree) ++ buf->f_ffree = ifree; ++ ++no_ilim: ++ if (dli->dl_space_total == (uint64_t)CDLIM_INFINITY) ++ goto no_blim; ++ ++ blimit = dli->dl_space_total >> sb->s_blocksize_bits; ++ ++ if (dli->dl_space_total < dli->dl_space_used) ++ bfree = 0; ++ else ++ bfree = (dli->dl_space_total - dli->dl_space_used) ++ >> sb->s_blocksize_bits; ++ ++ bavail = ((dli->dl_space_total >> 10) * dli->dl_nrlmult); ++ if (bavail < dli->dl_space_used) ++ bavail = 0; ++ else ++ bavail = (bavail - dli->dl_space_used) ++ >> sb->s_blocksize_bits; ++ ++ /* reduce max space available to limit */ ++ if (buf->f_blocks > blimit) ++ buf->f_blocks = blimit; ++ ++ /* reduce free space to min */ ++ if (bfree < buf->f_bfree) ++ buf->f_bfree = bfree; ++ ++ /* reduce avail space to min */ ++ if (bavail < buf->f_bavail) ++ buf->f_bavail = bavail; ++ ++no_blim: ++ spin_unlock(&dli->dl_lock); ++ put_dl_info(dli); ++ ++ return; ++} ++ ++#include <linux/module.h> ++ ++EXPORT_SYMBOL_GPL(locate_dl_info); ++EXPORT_SYMBOL_GPL(rcu_free_dl_info); ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/helper.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/helper.c +@@ -0,0 +1,174 @@ ++/* ++ * linux/kernel/vserver/helper.c ++ * ++ * Virtual Context Support ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 basic helper ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/errno.h> ++#include <linux/kmod.h> ++#include <linux/sched.h> ++#include <linux/reboot.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++ ++#include <asm/uaccess.h> ++#include <asm/unistd.h> ++ ++ ++char vshelper_path[255] = "/sbin/vshelper"; ++ ++ ++int do_vshelper(char *name, char *argv[], char *envp[], int sync) ++{ ++ int ret; ++ ++ if ((ret = call_usermodehelper(name, argv, envp, sync))) { ++ printk( KERN_WARNING ++ "%s: (%s %s) returned %s with %d\n", ++ name, argv[1], argv[2], ++ sync?"sync":"async", ret); ++ } ++ vxdprintk(VXD_CBIT(switch, 4), ++ "%s: (%s %s) returned %s with %d", ++ name, argv[1], argv[2], sync?"sync":"async", ret); ++ return ret; ++} ++ ++/* ++ * vshelper path is set via /proc/sys ++ * invoked by vserver sys_reboot(), with ++ * the following arguments ++ * ++ * argv [0] = vshelper_path; ++ * argv [1] = action: "restart", "halt", "poweroff", ... ++ * argv [2] = context identifier ++ * ++ * envp [*] = type-specific parameters ++ */ ++ ++long vs_reboot(unsigned int cmd, void * arg) ++{ ++ char id_buf[8], cmd_buf[16]; ++ char uid_buf[16], pid_buf[16]; ++ int ret; ++ ++ char *argv[] = {vshelper_path, NULL, id_buf, 0}; ++ char *envp[] = {"HOME=/", "TERM=linux", ++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", ++ uid_buf, pid_buf, cmd_buf, 0}; ++ ++ snprintf(id_buf, sizeof(id_buf)-1, "%d", vx_current_xid()); ++ ++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd); ++ snprintf(uid_buf, sizeof(uid_buf)-1, "VS_UID=%d", current->uid); ++ snprintf(pid_buf, sizeof(pid_buf)-1, "VS_PID=%d", current->pid); ++ ++ switch (cmd) { ++ case LINUX_REBOOT_CMD_RESTART: ++ argv[1] = "restart"; ++ break; ++ ++ case LINUX_REBOOT_CMD_HALT: ++ argv[1] = "halt"; ++ break; ++ ++ case LINUX_REBOOT_CMD_POWER_OFF: ++ argv[1] = "poweroff"; ++ break; ++ ++ case LINUX_REBOOT_CMD_SW_SUSPEND: ++ argv[1] = "swsusp"; ++ break; ++ ++ default: ++ return 0; ++ } ++ ++#ifndef CONFIG_VSERVER_LEGACY ++ ret = do_vshelper(vshelper_path, argv, envp, 1); ++#else ++ ret = do_vshelper(vshelper_path, argv, envp, 0); ++#endif ++ return (ret) ? -EPERM : 0; ++} ++ ++ ++/* ++ * argv [0] = vshelper_path; ++ * argv [1] = action: "startup", "shutdown" ++ * argv [2] = context identifier ++ * ++ * envp [*] = type-specific parameters ++ */ ++ ++long vs_state_change(struct vx_info *vxi, unsigned int cmd) ++{ ++ char id_buf[8], cmd_buf[16]; ++ char *argv[] = {vshelper_path, NULL, id_buf, 0}; ++ char *envp[] = {"HOME=/", "TERM=linux", ++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0}; ++ ++ if (!vx_info_flags(vxi, VXF_STATE_HELPER, 0)) ++ return 0; ++ ++ snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id); ++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd); ++ ++ switch (cmd) { ++ case VSC_STARTUP: ++ argv[1] = "startup"; ++ break; ++ case VSC_SHUTDOWN: ++ argv[1] = "shutdown"; ++ break; ++ default: ++ return 0; ++ } ++ ++ do_vshelper(vshelper_path, argv, envp, 1); ++ return 0; ++} ++ ++ ++/* ++ * argv [0] = vshelper_path; ++ * argv [1] = action: "netup", "netdown" ++ * argv [2] = context identifier ++ * ++ * envp [*] = type-specific parameters ++ */ ++ ++long vs_net_change(struct nx_info *nxi, unsigned int cmd) ++{ ++ char id_buf[8], cmd_buf[16]; ++ char *argv[] = {vshelper_path, NULL, id_buf, 0}; ++ char *envp[] = {"HOME=/", "TERM=linux", ++ "PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0}; ++ ++ if (!nx_info_flags(nxi, NXF_STATE_HELPER, 0)) ++ return 0; ++ ++ snprintf(id_buf, sizeof(id_buf)-1, "%d", nxi->nx_id); ++ snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd); ++ ++ switch (cmd) { ++ case VSC_NETUP: ++ argv[1] = "netup"; ++ break; ++ case VSC_NETDOWN: ++ argv[1] = "netdown"; ++ break; ++ default: ++ return 0; ++ } ++ ++ do_vshelper(vshelper_path, argv, envp, 1); ++ return 0; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/history.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/history.c +@@ -0,0 +1,184 @@ ++/* ++ * kernel/vserver/history.c ++ * ++ * Virtual Context History Backtrace ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 basic structure ++ * V0.02 hash/unhash and trace ++ * V0.03 preemption fixes ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/errno.h> ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/ctype.h> ++ ++#include <asm/uaccess.h> ++#include <asm/atomic.h> ++#include <asm/unistd.h> ++ ++#include <linux/vserver/debug.h> ++ ++ ++#ifdef CONFIG_VSERVER_HISTORY ++#define VXH_SIZE CONFIG_VSERVER_HISTORY_SIZE ++#else ++#define VXH_SIZE 64 ++#endif ++ ++struct _vx_history { ++ unsigned int counter; ++ ++ struct _vx_hist_entry entry[VXH_SIZE+1]; ++}; ++ ++ ++DEFINE_PER_CPU(struct _vx_history, vx_history_buffer); ++ ++unsigned volatile int vxh_active = 1; ++ ++static atomic_t sequence = ATOMIC_INIT(0); ++ ++ ++/* vxh_advance() ++ ++ * requires disabled preemption */ ++ ++struct _vx_hist_entry *vxh_advance(void *loc) ++{ ++ unsigned int cpu = smp_processor_id(); ++ struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu); ++ struct _vx_hist_entry *entry; ++ unsigned int index; ++ ++ index = vxh_active ? (hist->counter++ % VXH_SIZE) : VXH_SIZE; ++ entry = &hist->entry[index]; ++ ++ entry->seq = atomic_inc_return(&sequence); ++ entry->loc = loc; ++ return entry; ++} ++ ++ ++#define VXH_LOC_FMTS "(#%04x,*%d):%p" ++ ++#define VXH_LOC_ARGS(e) (e)->seq, cpu, (e)->loc ++ ++ ++#define VXH_VXI_FMTS "%p[#%d,%d.%d]" ++ ++#define VXH_VXI_ARGS(e) (e)->vxi.ptr, \ ++ (e)->vxi.ptr?(e)->vxi.xid:0, \ ++ (e)->vxi.ptr?(e)->vxi.usecnt:0, \ ++ (e)->vxi.ptr?(e)->vxi.tasks:0 ++ ++void vxh_dump_entry(struct _vx_hist_entry *e, unsigned cpu) ++{ ++ switch (e->type) { ++ case VXH_THROW_OOPS: ++ printk( VXH_LOC_FMTS " oops \n", VXH_LOC_ARGS(e)); ++ break; ++ ++ case VXH_GET_VX_INFO: ++ case VXH_PUT_VX_INFO: ++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_GET_VX_INFO)?"get":"put", ++ VXH_VXI_ARGS(e)); ++ break; ++ ++ case VXH_INIT_VX_INFO: ++ case VXH_SET_VX_INFO: ++ case VXH_CLR_VX_INFO: ++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_INIT_VX_INFO)?"init": ++ ((e->type==VXH_SET_VX_INFO)?"set":"clr"), ++ VXH_VXI_ARGS(e), e->sc.data); ++ break; ++ ++ case VXH_CLAIM_VX_INFO: ++ case VXH_RELEASE_VX_INFO: ++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_CLAIM_VX_INFO)?"claim":"release", ++ VXH_VXI_ARGS(e), e->sc.data); ++ break; ++ ++ case VXH_ALLOC_VX_INFO: ++ case VXH_DEALLOC_VX_INFO: ++ printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_ALLOC_VX_INFO)?"alloc":"dealloc", ++ VXH_VXI_ARGS(e)); ++ break; ++ ++ case VXH_HASH_VX_INFO: ++ case VXH_UNHASH_VX_INFO: ++ printk( VXH_LOC_FMTS " __%s_vx_info " VXH_VXI_FMTS "\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_HASH_VX_INFO)?"hash":"unhash", ++ VXH_VXI_ARGS(e)); ++ break; ++ ++ case VXH_LOC_VX_INFO: ++ case VXH_LOOKUP_VX_INFO: ++ case VXH_CREATE_VX_INFO: ++ printk( VXH_LOC_FMTS " __%s_vx_info [#%d] -> " VXH_VXI_FMTS "\n", ++ VXH_LOC_ARGS(e), ++ (e->type==VXH_CREATE_VX_INFO)?"create": ++ ((e->type==VXH_LOC_VX_INFO)?"loc":"lookup"), ++ e->ll.arg, VXH_VXI_ARGS(e)); ++ break; ++ } ++} ++ ++static void __vxh_dump_history(void) ++{ ++ unsigned int i,j; ++ ++ printk("History:\tSEQ: %8x\tNR_CPUS: %d\n", ++ atomic_read(&sequence), NR_CPUS); ++ ++ for (i=0; i < VXH_SIZE; i++) { ++ for (j=0; j < NR_CPUS; j++) { ++ struct _vx_history *hist = ++ &per_cpu(vx_history_buffer, j); ++ unsigned int index = (hist->counter-i) % VXH_SIZE; ++ struct _vx_hist_entry *entry = &hist->entry[index]; ++ ++ vxh_dump_entry(entry, j); ++ } ++ } ++} ++ ++void vxh_dump_history(void) ++{ ++ vxh_active = 0; ++#ifdef CONFIG_SMP ++ local_irq_enable(); ++ smp_send_stop(); ++ local_irq_disable(); ++#endif ++ __vxh_dump_history(); ++} ++ ++ ++/* vserver syscall commands below here */ ++ ++ ++int vc_dump_history(uint32_t id) ++{ ++ vxh_active = 0; ++ __vxh_dump_history(); ++ vxh_active = 1; ++ ++ return 0; ++} ++ ++EXPORT_SYMBOL_GPL(vxh_advance); ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/init.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/init.c +@@ -0,0 +1,44 @@ ++/* ++ * linux/kernel/init.c ++ * ++ * Virtual Server Init ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 basic structure ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/errno.h> ++#include <linux/init.h> ++#include <linux/module.h> ++ ++int vserver_register_sysctl(void); ++void vserver_unregister_sysctl(void); ++ ++ ++static int __init init_vserver(void) ++{ ++ int ret = 0; ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ vserver_register_sysctl(); ++#endif ++ return ret; ++} ++ ++ ++static void __exit exit_vserver(void) ++{ ++ ++#ifdef CONFIG_VSERVER_DEBUG ++ vserver_unregister_sysctl(); ++#endif ++ return; ++} ++ ++ ++module_init(init_vserver); ++module_exit(exit_vserver); ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/inode.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/inode.c +@@ -0,0 +1,369 @@ ++/* ++ * linux/kernel/vserver/inode.c ++ * ++ * Virtual Server: File System Support ++ * ++ * Copyright (C) 2004-2006 Herbert Pötzl ++ * ++ * V0.01 separated from vcontext V0.05 ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/proc_fs.h> ++#include <linux/devpts_fs.h> ++#include <linux/namei.h> ++#include <linux/mount.h> ++#include <linux/parser.h> ++#include <linux/compat.h> ++#include <linux/vserver/inode.h> ++#include <linux/vserver/inode_cmd.h> ++#include <linux/vserver/xid.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++static int __vc_get_iattr(struct inode *in, uint32_t *xid, uint32_t *flags, uint32_t *mask) ++{ ++ struct proc_dir_entry *entry; ++ ++ if (!in || !in->i_sb) ++ return -ESRCH; ++ ++ *flags = IATTR_XID ++ | (IS_BARRIER(in) ? IATTR_BARRIER : 0) ++ | (IS_IUNLINK(in) ? IATTR_IUNLINK : 0) ++ | (IS_IMMUTABLE(in) ? IATTR_IMMUTABLE : 0); ++ *mask = IATTR_IUNLINK | IATTR_IMMUTABLE; ++ ++ if (S_ISDIR(in->i_mode)) ++ *mask |= IATTR_BARRIER; ++ ++ if (IS_TAGXID(in)) { ++ *xid = in->i_xid; ++ *mask |= IATTR_XID; ++ } ++ ++ switch (in->i_sb->s_magic) { ++ case PROC_SUPER_MAGIC: ++ entry = PROC_I(in)->pde; ++ ++ /* check for specific inodes? */ ++ if (entry) ++ *mask |= IATTR_FLAGS; ++ if (entry) ++ *flags |= (entry->vx_flags & IATTR_FLAGS); ++ else ++ *flags |= (PROC_I(in)->vx_flags & IATTR_FLAGS); ++ break; ++ ++ case DEVPTS_SUPER_MAGIC: ++ *xid = in->i_xid; ++ *mask |= IATTR_XID; ++ break; ++ ++ default: ++ break; ++ } ++ return 0; ++} ++ ++int vc_get_iattr(uint32_t id, void __user *data) ++{ ++ struct nameidata nd; ++ struct vcmd_ctx_iattr_v1 vc_data = { .xid = -1 }; ++ int ret; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = user_path_walk_link(vc_data.name, &nd); ++ if (!ret) { ++ ret = __vc_get_iattr(nd.dentry->d_inode, ++ &vc_data.xid, &vc_data.flags, &vc_data.mask); ++ path_release(&nd); ++ } ++ if (ret) ++ return ret; ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ ret = -EFAULT; ++ return ret; ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_get_iattr_x32(uint32_t id, void __user *data) ++{ ++ struct nameidata nd; ++ struct vcmd_ctx_iattr_v1_x32 vc_data = { .xid = -1 }; ++ int ret; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = user_path_walk_link(compat_ptr(vc_data.name_ptr), &nd); ++ if (!ret) { ++ ret = __vc_get_iattr(nd.dentry->d_inode, ++ &vc_data.xid, &vc_data.flags, &vc_data.mask); ++ path_release(&nd); ++ } ++ if (ret) ++ return ret; ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ ret = -EFAULT; ++ return ret; ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++ ++static int __vc_set_iattr(struct dentry *de, uint32_t *xid, uint32_t *flags, uint32_t *mask) ++{ ++ struct inode *in = de->d_inode; ++ int error = 0, is_proc = 0, has_xid = 0; ++ struct iattr attr = { 0 }; ++ ++ if (!in || !in->i_sb) ++ return -ESRCH; ++ ++ is_proc = (in->i_sb->s_magic == PROC_SUPER_MAGIC); ++ if ((*mask & IATTR_FLAGS) && !is_proc) ++ return -EINVAL; ++ ++ has_xid = IS_TAGXID(in) || ++ (in->i_sb->s_magic == DEVPTS_SUPER_MAGIC); ++ if ((*mask & IATTR_XID) && !has_xid) ++ return -EINVAL; ++ ++ down(&in->i_sem); ++ if (*mask & IATTR_XID) { ++ attr.ia_xid = *xid; ++ attr.ia_valid |= ATTR_XID; ++ } ++ ++ if (*mask & IATTR_FLAGS) { ++ struct proc_dir_entry *entry = PROC_I(in)->pde; ++ unsigned int iflags = PROC_I(in)->vx_flags; ++ ++ iflags = (iflags & ~(*mask & IATTR_FLAGS)) ++ | (*flags & IATTR_FLAGS); ++ PROC_I(in)->vx_flags = iflags; ++ if (entry) ++ entry->vx_flags = iflags; ++ } ++ ++ if (*mask & (IATTR_BARRIER | IATTR_IUNLINK | IATTR_IMMUTABLE)) { ++ if (*mask & IATTR_IMMUTABLE) { ++ if (*flags & IATTR_IMMUTABLE) ++ in->i_flags |= S_IMMUTABLE; ++ else ++ in->i_flags &= ~S_IMMUTABLE; ++ } ++ if (*mask & IATTR_IUNLINK) { ++ if (*flags & IATTR_IUNLINK) ++ in->i_flags |= S_IUNLINK; ++ else ++ in->i_flags &= ~S_IUNLINK; ++ } ++ if (S_ISDIR(in->i_mode) && (*mask & IATTR_BARRIER)) { ++ if (*flags & IATTR_BARRIER) ++ in->i_flags |= S_BARRIER; ++ else ++ in->i_flags &= ~S_BARRIER; ++ } ++ if (in->i_op && in->i_op->sync_flags) { ++ error = in->i_op->sync_flags(in); ++ if (error) ++ goto out; ++ } ++ } ++ ++ if (attr.ia_valid) { ++ if (in->i_op && in->i_op->setattr) ++ error = in->i_op->setattr(de, &attr); ++ else { ++ error = inode_change_ok(in, &attr); ++ if (!error) ++ error = inode_setattr(in, &attr); ++ } ++ } ++ ++out: ++ up(&in->i_sem); ++ return error; ++} ++ ++int vc_set_iattr(uint32_t id, void __user *data) ++{ ++ struct nameidata nd; ++ struct vcmd_ctx_iattr_v1 vc_data; ++ int ret; ++ ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_LINUX_IMMUTABLE)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = user_path_walk_link(vc_data.name, &nd); ++ if (!ret) { ++ ret = __vc_set_iattr(nd.dentry, ++ &vc_data.xid, &vc_data.flags, &vc_data.mask); ++ path_release(&nd); ++ } ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ ret = -EFAULT; ++ return ret; ++} ++ ++#ifdef CONFIG_COMPAT ++ ++int vc_set_iattr_x32(uint32_t id, void __user *data) ++{ ++ struct nameidata nd; ++ struct vcmd_ctx_iattr_v1_x32 vc_data; ++ int ret; ++ ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_LINUX_IMMUTABLE)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ ret = user_path_walk_link(compat_ptr(vc_data.name_ptr), &nd); ++ if (!ret) { ++ ret = __vc_set_iattr(nd.dentry, ++ &vc_data.xid, &vc_data.flags, &vc_data.mask); ++ path_release(&nd); ++ } ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ ret = -EFAULT; ++ return ret; ++} ++ ++#endif /* CONFIG_COMPAT */ ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ ++#define PROC_DYNAMIC_FIRST 0xF0000000UL ++ ++int vx_proc_ioctl(struct inode * inode, struct file * filp, ++ unsigned int cmd, unsigned long arg) ++{ ++ struct proc_dir_entry *entry; ++ int error = 0; ++ int flags; ++ ++ if (inode->i_ino < PROC_DYNAMIC_FIRST) ++ return -ENOTTY; ++ ++ entry = PROC_I(inode)->pde; ++ if (!entry) ++ return -ENOTTY; ++ ++ switch(cmd) { ++ case FIOC_GETXFLG: { ++ /* fixme: if stealth, return -ENOTTY */ ++ error = -EPERM; ++ flags = entry->vx_flags; ++ if (capable(CAP_CONTEXT)) ++ error = put_user(flags, (int *) arg); ++ break; ++ } ++ case FIOC_SETXFLG: { ++ /* fixme: if stealth, return -ENOTTY */ ++ error = -EPERM; ++ if (!capable(CAP_CONTEXT)) ++ break; ++ error = -EROFS; ++ if (IS_RDONLY(inode)) ++ break; ++ error = -EFAULT; ++ if (get_user(flags, (int *) arg)) ++ break; ++ error = 0; ++ entry->vx_flags = flags; ++ break; ++ } ++ default: ++ return -ENOTTY; ++ } ++ return error; ++} ++#endif ++ ++ ++int vx_parse_xid(char *string, xid_t *xid, int remove) ++{ ++ static match_table_t tokens = { ++ {1, "xid=%u"}, ++ {0, NULL} ++ }; ++ substring_t args[MAX_OPT_ARGS]; ++ int token, option = 0; ++ ++ if (!string) ++ return 0; ++ ++ token = match_token(string, tokens, args); ++ if (token && xid && !match_int(args, &option)) ++ *xid = option; ++ ++ vxdprintk(VXD_CBIT(xid, 7), ++ "vx_parse_xid(»%s«): %d:#%d", ++ string, token, option); ++ ++ if (token && remove) { ++ char *p = strstr(string, "xid="); ++ char *q = p; ++ ++ if (p) { ++ while (*q != '\0' && *q != ',') ++ q++; ++ while (*q) ++ *p++ = *q++; ++ while (*p) ++ *p++ = '\0'; ++ } ++ } ++ return token; ++} ++ ++void vx_propagate_xid(struct nameidata *nd, struct inode *inode) ++{ ++ xid_t new_xid = 0; ++ struct vfsmount *mnt; ++ int propagate; ++ ++ if (!nd) ++ return; ++ mnt = nd->mnt; ++ if (!mnt) ++ return; ++ ++ propagate = (mnt->mnt_flags & MNT_XID); ++ if (propagate) ++ new_xid = mnt->mnt_xid; ++ ++ vxdprintk(VXD_CBIT(xid, 7), ++ "vx_propagate_xid(%p[#%lu.%d]): %d,%d", ++ inode, inode->i_ino, inode->i_xid, ++ new_xid, (propagate)?1:0); ++ ++ if (propagate) ++ inode->i_xid = new_xid; ++} ++ ++#include <linux/module.h> ++ ++EXPORT_SYMBOL_GPL(vx_propagate_xid); ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/legacy.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/legacy.c +@@ -0,0 +1,108 @@ ++/* ++ * linux/kernel/vserver/legacy.c ++ * ++ * Virtual Server: Legacy Funtions ++ * ++ * Copyright (C) 2001-2003 Jacques Gelinas ++ * Copyright (C) 2003-2006 Herbert Pötzl ++ * ++ * V0.01 broken out from vcontext.c V0.05 ++ * ++ */ ++ ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vserver/legacy.h> ++#include <linux/vserver/namespace.h> ++#include <linux/namespace.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++ ++static int vx_set_initpid(struct vx_info *vxi, int pid) ++{ ++ if (vxi->vx_initpid) ++ return -EPERM; ++ ++ vxi->vx_initpid = pid; ++ return 0; ++} ++ ++int vc_new_s_context(uint32_t ctx, void __user *data) ++{ ++ int ret = -ENOMEM; ++ struct vcmd_new_s_context_v1 vc_data; ++ struct vx_info *new_vxi; ++ ++ if (copy_from_user(&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ /* legacy hack, will be removed soon */ ++ if (ctx == -2) { ++ /* assign flags and initpid */ ++ if (!current->vx_info) ++ return -EINVAL; ++ ret = 0; ++ if (vc_data.flags & VX_INFO_INIT) ++ ret = vx_set_initpid(current->vx_info, current->tgid); ++ if (ret == 0) { ++ /* We keep the same vx_id, but lower the capabilities */ ++ current->vx_info->vx_bcaps &= (~vc_data.remove_cap); ++ ret = vx_current_xid(); ++ current->vx_info->vx_flags |= vc_data.flags; ++ } ++ return ret; ++ } ++ ++ if (!vx_check(0, VX_ADMIN) || !capable(CAP_SYS_ADMIN) ++ /* might make sense in the future, or not ... */ ++ || vx_flags(VX_INFO_LOCK, 0)) ++ return -EPERM; ++ ++ /* ugly hack for Spectator */ ++ if (ctx == 1) { ++ current->xid = 1; ++ return 0; ++ } ++ ++ if (((ctx > MAX_S_CONTEXT) && (ctx != VX_DYNAMIC_ID)) || ++ (ctx == 0)) ++ return -EINVAL; ++ ++ if ((ctx == VX_DYNAMIC_ID) || (ctx < MIN_D_CONTEXT)) ++ new_vxi = locate_or_create_vx_info(ctx); ++ else ++ new_vxi = locate_vx_info(ctx); ++ ++ if (!new_vxi) ++ return -EINVAL; ++ ++ ret = -EPERM; ++ if (!vx_info_flags(new_vxi, VXF_STATE_SETUP, 0) && ++ vx_info_flags(new_vxi, VX_INFO_PRIVATE, 0)) ++ goto out_put; ++ ++ new_vxi->vx_flags &= ~(VXF_STATE_SETUP|VXF_STATE_INIT); ++ ++ ret = vx_migrate_task(current, new_vxi); ++ if (ret == 0) { ++ current->vx_info->vx_bcaps &= (~vc_data.remove_cap); ++ new_vxi->vx_flags |= vc_data.flags; ++ if (vc_data.flags & VX_INFO_INIT) ++ vx_set_initpid(new_vxi, current->tgid); ++ if (vc_data.flags & VX_INFO_NAMESPACE) ++ vx_set_namespace(new_vxi, ++ current->namespace, current->fs); ++ if (vc_data.flags & VX_INFO_NPROC) ++ new_vxi->limit.rlim[RLIMIT_NPROC] = ++ current->signal->rlim[RLIMIT_NPROC].rlim_max; ++ ret = new_vxi->vx_id; ++ } ++out_put: ++ put_vx_info(new_vxi); ++ return ret; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/legacynet.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/legacynet.c +@@ -0,0 +1,85 @@ ++ ++/* ++ * linux/kernel/vserver/legacynet.c ++ * ++ * Virtual Server: Legacy Network Funtions ++ * ++ * Copyright (C) 2001-2003 Jacques Gelinas ++ * Copyright (C) 2003-2006 Herbert Pötzl ++ * ++ * V0.01 broken out from legacy.c ++ * ++ */ ++ ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vserver/legacy.h> ++// #include <linux/vserver/namespace.h> ++#include <linux/namespace.h> ++#include <linux/err.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++extern struct nx_info *create_nx_info(void); ++ ++/* set ipv4 root (syscall) */ ++ ++int vc_set_ipv4root(uint32_t nbip, void __user *data) ++{ ++ int i, err = -EPERM; ++ struct vcmd_set_ipv4root_v3 vc_data; ++ struct nx_info *new_nxi, *nxi = current->nx_info; ++ ++ if (nbip < 0 || nbip > NB_IPV4ROOT) ++ return -EINVAL; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ if (!nxi || nxi->ipv4[0] == 0 || capable(CAP_NET_ADMIN)) ++ /* We are allowed to change everything */ ++ err = 0; ++ else if (nxi) { ++ int found = 0; ++ ++ /* We are allowed to select a subset of the currently ++ installed IP numbers. No new one are allowed ++ We can't change the broadcast address though */ ++ for (i=0; i<nbip; i++) { ++ int j; ++ __u32 nxip = vc_data.nx_mask_pair[i].ip; ++ for (j=0; j<nxi->nbipv4; j++) { ++ if (nxip == nxi->ipv4[j]) { ++ found++; ++ break; ++ } ++ } ++ } ++ if ((found == nbip) && ++ (vc_data.broadcast == nxi->v4_bcast)) ++ err = 0; ++ } ++ if (err) ++ return err; ++ ++ new_nxi = create_nx_info(); ++ if (IS_ERR(new_nxi)) ++ return -EINVAL; ++ ++ new_nxi->nbipv4 = nbip; ++ for (i=0; i<nbip; i++) { ++ new_nxi->ipv4[i] = vc_data.nx_mask_pair[i].ip; ++ new_nxi->mask[i] = vc_data.nx_mask_pair[i].mask; ++ } ++ new_nxi->v4_bcast = vc_data.broadcast; ++ if (nxi) ++ printk("!!! switching nx_info %p->%p\n", nxi, new_nxi); ++ ++ nx_migrate_task(current, new_nxi); ++ put_nx_info(new_nxi); ++ return 0; ++} ++ ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/limit.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/limit.c +@@ -0,0 +1,177 @@ ++/* ++ * linux/kernel/vserver/limit.c ++ * ++ * Virtual Server: Context Limits ++ * ++ * Copyright (C) 2004-2006 Herbert Pötzl ++ * ++ * V0.01 broken out from vcontext V0.05 ++ * ++ */ ++ ++#include <linux/module.h> ++#include <linux/vs_context.h> ++#include <linux/vs_limit.h> ++#include <linux/vserver/limit.h> ++#include <linux/vserver/switch.h> ++#include <linux/vserver/limit_cmd.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++const char *vlimit_name[NUM_LIMITS] = { ++ [RLIMIT_CPU] = "CPU", ++ [RLIMIT_RSS] = "RSS", ++ [RLIMIT_NPROC] = "NPROC", ++ [RLIMIT_NOFILE] = "NOFILE", ++ [RLIMIT_MEMLOCK] = "VML", ++ [RLIMIT_AS] = "VM", ++ [RLIMIT_LOCKS] = "LOCKS", ++ [RLIMIT_SIGPENDING] = "SIGP", ++ [RLIMIT_MSGQUEUE] = "MSGQ", ++ ++ [VLIMIT_NSOCK] = "NSOCK", ++ [VLIMIT_OPENFD] = "OPENFD", ++ [VLIMIT_ANON] = "ANON", ++ [VLIMIT_SHMEM] = "SHMEM", ++}; ++ ++EXPORT_SYMBOL_GPL(vlimit_name); ++ ++ ++static int is_valid_rlimit(int id) ++{ ++ int valid = 0; ++ ++ switch (id) { ++ case RLIMIT_RSS: ++ case RLIMIT_NPROC: ++ case RLIMIT_NOFILE: ++ case RLIMIT_MEMLOCK: ++ case RLIMIT_AS: ++ ++ case VLIMIT_NSOCK: ++ case VLIMIT_OPENFD: ++ case VLIMIT_ANON: ++ case VLIMIT_SHMEM: ++ valid = 1; ++ break; ++ } ++ return valid; ++} ++ ++static inline uint64_t vc_get_rlim(struct vx_info *vxi, int id) ++{ ++ unsigned long limit; ++ ++ limit = vxi->limit.rlim[id]; ++ if (limit == RLIM_INFINITY) ++ return CRLIM_INFINITY; ++ return limit; ++} ++ ++int vc_get_rlimit(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_rlimit_v0 vc_data; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ if (!is_valid_rlimit(vc_data.id)) ++ return -ENOTSUPP; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ vc_data.maximum = vc_get_rlim(vxi, vc_data.id); ++ vc_data.minimum = CRLIM_UNSET; ++ vc_data.softlimit = CRLIM_UNSET; ++ put_vx_info(vxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_rlimit(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ struct vcmd_ctx_rlimit_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ if (!is_valid_rlimit(vc_data.id)) ++ return -ENOTSUPP; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ if (vc_data.maximum != CRLIM_KEEP) ++ vxi->limit.rlim[vc_data.id] = vc_data.maximum; ++ put_vx_info(vxi); ++ ++ return 0; ++} ++ ++int vc_get_rlimit_mask(uint32_t id, void __user *data) ++{ ++ static struct vcmd_ctx_rlimit_mask_v0 mask = { ++ /* minimum */ ++ 0 ++ , /* softlimit */ ++ 0 ++ , /* maximum */ ++ (1 << RLIMIT_RSS) | ++ (1 << RLIMIT_NPROC) | ++ (1 << RLIMIT_NOFILE) | ++ (1 << RLIMIT_MEMLOCK) | ++ (1 << RLIMIT_LOCKS) | ++ (1 << RLIMIT_AS) | ++ (1 << VLIMIT_ANON) | ++ 0 ++ }; ++ ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE)) ++ return -EPERM; ++ if (copy_to_user(data, &mask, sizeof(mask))) ++ return -EFAULT; ++ return 0; ++} ++ ++ ++void vx_vsi_meminfo(struct sysinfo *val) ++{ ++ struct vx_info *vxi = current->vx_info; ++ unsigned long v; ++ ++ v = vxi->limit.rlim[RLIMIT_RSS]; ++ if (v != RLIM_INFINITY) ++ val->totalram = min(val->totalram, v); ++ v = atomic_read(&vxi->limit.rcur[RLIMIT_RSS]); ++ val->freeram = (v < val->totalram) ? val->totalram - v : 0; ++ val->bufferram = 0; ++ val->totalhigh = 0; ++ val->freehigh = 0; ++ return; ++} ++ ++void vx_vsi_swapinfo(struct sysinfo *val) ++{ ++ struct vx_info *vxi = current->vx_info; ++ unsigned long v, w; ++ ++ v = vxi->limit.rlim[RLIMIT_RSS]; ++ w = vxi->limit.rlim[RLIMIT_AS]; ++ if (w != RLIM_INFINITY) ++ val->totalswap = min(val->totalswap, w - ++ ((v != RLIM_INFINITY) ? v : 0)); ++ w = atomic_read(&vxi->limit.rcur[RLIMIT_AS]); ++ val->freeswap = (w < val->totalswap) ? val->totalswap - w : 0; ++ return; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/limit_init.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/limit_init.h +@@ -0,0 +1,34 @@ ++ ++#include <linux/config.h> ++ ++ ++#include <linux/config.h> ++ ++ ++static inline void vx_info_init_limit(struct _vx_limit *limit) ++{ ++ int lim; ++ ++ for (lim=0; lim<NUM_LIMITS; lim++) { ++ limit->rlim[lim] = RLIM_INFINITY; ++ limit->rmax[lim] = 0; ++ atomic_set(&limit->rcur[lim], 0); ++ atomic_set(&limit->lhit[lim], 0); ++ } ++} ++ ++static inline void vx_info_exit_limit(struct _vx_limit *limit) ++{ ++#ifdef CONFIG_VSERVER_DEBUG ++ unsigned long value; ++ unsigned int lim; ++ ++ for (lim=0; lim<NUM_LIMITS; lim++) { ++ value = atomic_read(&limit->rcur[lim]); ++ vxwprintk(value, ++ "!!! limit: %p[%s,%d] = %ld on exit.", ++ limit, vlimit_name[lim], lim, value); ++ } ++#endif ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/limit_proc.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/limit_proc.h +@@ -0,0 +1,58 @@ ++#ifndef _VX_LIMIT_PROC_H ++#define _VX_LIMIT_PROC_H ++ ++ ++static inline void vx_limit_fixup(struct _vx_limit *limit) ++{ ++ unsigned long value; ++ unsigned int lim; ++ ++ for (lim=0; lim<NUM_LIMITS; lim++) { ++ value = atomic_read(&limit->rcur[lim]); ++ if (value > limit->rmax[lim]) ++ limit->rmax[lim] = value; ++ if (limit->rmax[lim] > limit->rlim[lim]) ++ limit->rmax[lim] = limit->rlim[lim]; ++ } ++} ++ ++#define VX_LIMIT_FMT ":\t%10d\t%10ld\t%10ld\t%6d\n" ++ ++#define VX_LIMIT_ARG(r) \ ++ ,atomic_read(&limit->rcur[r]) \ ++ ,limit->rmax[r] \ ++ ,limit->rlim[r] \ ++ ,atomic_read(&limit->lhit[r]) ++ ++static inline int vx_info_proc_limit(struct _vx_limit *limit, char *buffer) ++{ ++ vx_limit_fixup(limit); ++ return sprintf(buffer, ++ "PROC" VX_LIMIT_FMT ++ "VM" VX_LIMIT_FMT ++ "VML" VX_LIMIT_FMT ++ "RSS" VX_LIMIT_FMT ++ "ANON" VX_LIMIT_FMT ++ "FILES" VX_LIMIT_FMT ++ "OFD" VX_LIMIT_FMT ++ "LOCKS" VX_LIMIT_FMT ++ "SOCK" VX_LIMIT_FMT ++ "MSGQ" VX_LIMIT_FMT ++ "SHM" VX_LIMIT_FMT ++ VX_LIMIT_ARG(RLIMIT_NPROC) ++ VX_LIMIT_ARG(RLIMIT_AS) ++ VX_LIMIT_ARG(RLIMIT_MEMLOCK) ++ VX_LIMIT_ARG(RLIMIT_RSS) ++ VX_LIMIT_ARG(VLIMIT_ANON) ++ VX_LIMIT_ARG(RLIMIT_NOFILE) ++ VX_LIMIT_ARG(VLIMIT_OPENFD) ++ VX_LIMIT_ARG(RLIMIT_LOCKS) ++ VX_LIMIT_ARG(VLIMIT_NSOCK) ++ VX_LIMIT_ARG(RLIMIT_MSGQUEUE) ++ VX_LIMIT_ARG(VLIMIT_SHMEM) ++ ); ++} ++ ++#endif /* _VX_LIMIT_PROC_H */ ++ ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/namespace.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/namespace.c +@@ -0,0 +1,123 @@ ++/* ++ * linux/kernel/vserver/namespace.c ++ * ++ * Virtual Server: Context Namespace Support ++ * ++ * Copyright (C) 2003-2006 Herbert Pötzl ++ * ++ * V0.01 broken out from context.c 0.07 ++ * V0.02 added task locking for namespace ++ * ++ */ ++ ++#include <linux/utsname.h> ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vserver/namespace.h> ++#include <linux/vserver/namespace_cmd.h> ++#include <linux/dcache.h> ++#include <linux/mount.h> ++#include <linux/fs.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++/* namespace functions */ ++ ++#include <linux/namespace.h> ++ ++int vx_set_namespace(struct vx_info *vxi, struct namespace *ns, struct fs_struct *fs) ++{ ++ struct fs_struct *fs_copy; ++ ++ if (vxi->vx_namespace) ++ return -EPERM; ++ if (!ns || !fs) ++ return -EINVAL; ++ ++ fs_copy = copy_fs_struct(fs); ++ if (!fs_copy) ++ return -ENOMEM; ++ ++ get_namespace(ns); ++ vxi->vx_namespace = ns; ++ vxi->vx_fs = fs_copy; ++ return 0; ++} ++ ++int vc_enter_namespace(uint32_t id, void *data) ++{ ++ struct vx_info *vxi; ++ struct fs_struct *old_fs, *fs; ++ struct namespace *old_ns; ++ int ret = 0; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ ret = -EINVAL; ++ if (!vxi->vx_namespace) ++ goto out_put; ++ ++ ret = -ENOMEM; ++ fs = copy_fs_struct(vxi->vx_fs); ++ if (!fs) ++ goto out_put; ++ ++ ret = 0; ++ task_lock(current); ++ old_ns = current->namespace; ++ old_fs = current->fs; ++ get_namespace(vxi->vx_namespace); ++ current->namespace = vxi->vx_namespace; ++ current->fs = fs; ++ task_unlock(current); ++ ++ put_namespace(old_ns); ++ put_fs_struct(old_fs); ++out_put: ++ put_vx_info(vxi); ++ return ret; ++} ++ ++int vc_cleanup_namespace(uint32_t id, void *data) ++{ ++ // down_write(¤t->namespace->sem); ++ spin_lock(&vfsmount_lock); ++ umount_unused(current->namespace->root, current->fs); ++ spin_unlock(&vfsmount_lock); ++ // up_write(¤t->namespace->sem); ++ return 0; ++} ++ ++int vc_set_namespace(uint32_t id, void __user *data) ++{ ++ struct fs_struct *fs; ++ struct namespace *ns; ++ struct vx_info *vxi; ++ int ret; ++ ++ if (vx_check(0, VX_ADMIN|VX_WATCH)) ++ return -ENOSYS; ++ ++ task_lock(current); ++ vxi = get_vx_info(current->vx_info); ++ fs = current->fs; ++ atomic_inc(&fs->count); ++ ns = current->namespace; ++ get_namespace(current->namespace); ++ task_unlock(current); ++ ++ ret = vx_set_namespace(vxi, ns, fs); ++ ++ put_namespace(ns); ++ put_fs_struct(fs); ++ put_vx_info(vxi); ++ return ret; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/network.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/network.c +@@ -0,0 +1,766 @@ ++/* ++ * linux/kernel/vserver/network.c ++ * ++ * Virtual Server: Network Support ++ * ++ * Copyright (C) 2003-2006 Herbert Pötzl ++ * ++ * V0.01 broken out from vcontext V0.05 ++ * V0.02 cleaned up implementation ++ * V0.03 added equiv nx commands ++ * V0.04 switch to RCU based hash ++ * V0.05 and back to locking again ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/slab.h> ++#include <linux/vserver/network_cmd.h> ++#include <linux/rcupdate.h> ++#include <net/tcp.h> ++ ++#include <asm/errno.h> ++ ++ ++/* __alloc_nx_info() ++ ++ * allocate an initialized nx_info struct ++ * doesn't make it visible (hash) */ ++ ++static struct nx_info *__alloc_nx_info(nid_t nid) ++{ ++ struct nx_info *new = NULL; ++ ++ vxdprintk(VXD_CBIT(nid, 1), "alloc_nx_info(%d)*", nid); ++ ++ /* would this benefit from a slab cache? */ ++ new = kmalloc(sizeof(struct nx_info), GFP_KERNEL); ++ if (!new) ++ return 0; ++ ++ memset (new, 0, sizeof(struct nx_info)); ++ new->nx_id = nid; ++ INIT_HLIST_NODE(&new->nx_hlist); ++ atomic_set(&new->nx_usecnt, 0); ++ atomic_set(&new->nx_tasks, 0); ++ new->nx_state = 0; ++ ++ new->nx_flags = NXF_INIT_SET; ++ ++ /* rest of init goes here */ ++ ++ vxdprintk(VXD_CBIT(nid, 0), ++ "alloc_nx_info(%d) = %p", nid, new); ++ return new; ++} ++ ++/* __dealloc_nx_info() ++ ++ * final disposal of nx_info */ ++ ++static void __dealloc_nx_info(struct nx_info *nxi) ++{ ++ vxdprintk(VXD_CBIT(nid, 0), ++ "dealloc_nx_info(%p)", nxi); ++ ++ nxi->nx_hlist.next = LIST_POISON1; ++ nxi->nx_id = -1; ++ ++ BUG_ON(atomic_read(&nxi->nx_usecnt)); ++ BUG_ON(atomic_read(&nxi->nx_tasks)); ++ ++ nxi->nx_state |= NXS_RELEASED; ++ kfree(nxi); ++} ++ ++static void __shutdown_nx_info(struct nx_info *nxi) ++{ ++ nxi->nx_state |= NXS_SHUTDOWN; ++ vs_net_change(nxi, VSC_NETDOWN); ++} ++ ++/* exported stuff */ ++ ++void free_nx_info(struct nx_info *nxi) ++{ ++ /* context shutdown is mandatory */ ++ BUG_ON(nxi->nx_state != NXS_SHUTDOWN); ++ ++ /* context must not be hashed */ ++ BUG_ON(nxi->nx_state & NXS_HASHED); ++ ++ BUG_ON(atomic_read(&nxi->nx_usecnt)); ++ BUG_ON(atomic_read(&nxi->nx_tasks)); ++ ++ __dealloc_nx_info(nxi); ++} ++ ++ ++/* hash table for nx_info hash */ ++ ++#define NX_HASH_SIZE 13 ++ ++struct hlist_head nx_info_hash[NX_HASH_SIZE]; ++ ++static spinlock_t nx_info_hash_lock = SPIN_LOCK_UNLOCKED; ++ ++ ++static inline unsigned int __hashval(nid_t nid) ++{ ++ return (nid % NX_HASH_SIZE); ++} ++ ++ ++ ++/* __hash_nx_info() ++ ++ * add the nxi to the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __hash_nx_info(struct nx_info *nxi) ++{ ++ struct hlist_head *head; ++ ++ vxd_assert_lock(&nx_info_hash_lock); ++ vxdprintk(VXD_CBIT(nid, 4), ++ "__hash_nx_info: %p[#%d]", nxi, nxi->nx_id); ++ ++ /* context must not be hashed */ ++ BUG_ON(nx_info_state(nxi, NXS_HASHED)); ++ ++ nxi->nx_state |= NXS_HASHED; ++ head = &nx_info_hash[__hashval(nxi->nx_id)]; ++ hlist_add_head(&nxi->nx_hlist, head); ++} ++ ++/* __unhash_nx_info() ++ ++ * remove the nxi from the global hash table ++ * requires the hash_lock to be held */ ++ ++static inline void __unhash_nx_info(struct nx_info *nxi) ++{ ++ vxd_assert_lock(&nx_info_hash_lock); ++ vxdprintk(VXD_CBIT(nid, 4), ++ "__unhash_nx_info: %p[#%d]", nxi, nxi->nx_id); ++ ++ /* context must be hashed */ ++ BUG_ON(!nx_info_state(nxi, NXS_HASHED)); ++ ++ nxi->nx_state &= ~NXS_HASHED; ++ hlist_del(&nxi->nx_hlist); ++} ++ ++ ++/* __lookup_nx_info() ++ ++ * requires the hash_lock to be held ++ * doesn't increment the nx_refcnt */ ++ ++static inline struct nx_info *__lookup_nx_info(nid_t nid) ++{ ++ struct hlist_head *head = &nx_info_hash[__hashval(nid)]; ++ struct hlist_node *pos; ++ struct nx_info *nxi; ++ ++ vxd_assert_lock(&nx_info_hash_lock); ++ hlist_for_each(pos, head) { ++ nxi = hlist_entry(pos, struct nx_info, nx_hlist); ++ ++ if (nxi->nx_id == nid) ++ goto found; ++ } ++ nxi = NULL; ++found: ++ vxdprintk(VXD_CBIT(nid, 0), ++ "__lookup_nx_info(#%u): %p[#%u]", ++ nid, nxi, nxi?nxi->nx_id:0); ++ return nxi; ++} ++ ++ ++/* __nx_dynamic_id() ++ ++ * find unused dynamic nid ++ * requires the hash_lock to be held */ ++ ++static inline nid_t __nx_dynamic_id(void) ++{ ++ static nid_t seq = MAX_N_CONTEXT; ++ nid_t barrier = seq; ++ ++ vxd_assert_lock(&nx_info_hash_lock); ++ do { ++ if (++seq > MAX_N_CONTEXT) ++ seq = MIN_D_CONTEXT; ++ if (!__lookup_nx_info(seq)) { ++ vxdprintk(VXD_CBIT(nid, 4), ++ "__nx_dynamic_id: [#%d]", seq); ++ return seq; ++ } ++ } while (barrier != seq); ++ return 0; ++} ++ ++/* __create_nx_info() ++ ++ * create the requested context ++ * get() and hash it */ ++ ++static struct nx_info * __create_nx_info(int id) ++{ ++ struct nx_info *new, *nxi = NULL; ++ ++ vxdprintk(VXD_CBIT(nid, 1), "create_nx_info(%d)*", id); ++ ++ if (!(new = __alloc_nx_info(id))) ++ return ERR_PTR(-ENOMEM); ++ ++ /* required to make dynamic xids unique */ ++ spin_lock(&nx_info_hash_lock); ++ ++ /* dynamic context requested */ ++ if (id == NX_DYNAMIC_ID) { ++ id = __nx_dynamic_id(); ++ if (!id) { ++ printk(KERN_ERR "no dynamic context available.\n"); ++ nxi = ERR_PTR(-EAGAIN); ++ goto out_unlock; ++ } ++ new->nx_id = id; ++ } ++ /* static context requested */ ++ else if ((nxi = __lookup_nx_info(id))) { ++ vxdprintk(VXD_CBIT(nid, 0), ++ "create_nx_info(%d) = %p (already there)", id, nxi); ++ if (nx_info_flags(nxi, NXF_STATE_SETUP, 0)) ++ nxi = ERR_PTR(-EBUSY); ++ else ++ nxi = ERR_PTR(-EEXIST); ++ goto out_unlock; ++ } ++ /* dynamic nid creation blocker */ ++ else if (id >= MIN_D_CONTEXT) { ++ vxdprintk(VXD_CBIT(nid, 0), ++ "create_nx_info(%d) (dynamic rejected)", id); ++ nxi = ERR_PTR(-EINVAL); ++ goto out_unlock; ++ } ++ ++ /* new context */ ++ vxdprintk(VXD_CBIT(nid, 0), ++ "create_nx_info(%d) = %p (new)", id, new); ++ __hash_nx_info(get_nx_info(new)); ++ nxi = new, new = NULL; ++ ++out_unlock: ++ spin_unlock(&nx_info_hash_lock); ++ if (new) ++ __dealloc_nx_info(new); ++ return nxi; ++} ++ ++ ++ ++/* exported stuff */ ++ ++ ++void unhash_nx_info(struct nx_info *nxi) ++{ ++ __shutdown_nx_info(nxi); ++ spin_lock(&nx_info_hash_lock); ++ __unhash_nx_info(nxi); ++ spin_unlock(&nx_info_hash_lock); ++} ++ ++#ifdef CONFIG_VSERVER_LEGACYNET ++ ++struct nx_info *create_nx_info(void) ++{ ++ return __create_nx_info(NX_DYNAMIC_ID); ++} ++ ++#endif ++ ++/* locate_nx_info() ++ ++ * search for a nx_info and get() it ++ * negative id means current */ ++ ++struct nx_info *locate_nx_info(int id) ++{ ++ struct nx_info *nxi = NULL; ++ ++ if (id < 0) { ++ nxi = get_nx_info(current->nx_info); ++ } else if (id > 1) { ++ spin_lock(&nx_info_hash_lock); ++ nxi = get_nx_info(__lookup_nx_info(id)); ++ spin_unlock(&nx_info_hash_lock); ++ } ++ return nxi; ++} ++ ++/* nid_is_hashed() ++ ++ * verify that nid is still hashed */ ++ ++int nid_is_hashed(nid_t nid) ++{ ++ int hashed; ++ ++ spin_lock(&nx_info_hash_lock); ++ hashed = (__lookup_nx_info(nid) != NULL); ++ spin_unlock(&nx_info_hash_lock); ++ return hashed; ++} ++ ++ ++#ifdef CONFIG_PROC_FS ++ ++int get_nid_list(int index, unsigned int *nids, int size) ++{ ++ int hindex, nr_nids = 0; ++ ++ for (hindex = 0; hindex < NX_HASH_SIZE; hindex++) { ++ struct hlist_head *head = &nx_info_hash[hindex]; ++ struct hlist_node *pos; ++ ++ spin_lock(&nx_info_hash_lock); ++ hlist_for_each(pos, head) { ++ struct nx_info *nxi; ++ ++ if (--index > 0) ++ continue; ++ ++ nxi = hlist_entry(pos, struct nx_info, nx_hlist); ++ nids[nr_nids] = nxi->nx_id; ++ if (++nr_nids >= size) { ++ spin_unlock(&nx_info_hash_lock); ++ goto out; ++ } ++ } ++ /* keep the lock time short */ ++ spin_unlock(&nx_info_hash_lock); ++ } ++out: ++ return nr_nids; ++} ++#endif ++ ++ ++/* ++ * migrate task to new network ++ * gets nxi, puts old_nxi on change ++ */ ++ ++int nx_migrate_task(struct task_struct *p, struct nx_info *nxi) ++{ ++ struct nx_info *old_nxi; ++ int ret = 0; ++ ++ if (!p || !nxi) ++ BUG(); ++ ++ vxdprintk(VXD_CBIT(nid, 5), ++ "nx_migrate_task(%p,%p[#%d.%d.%d])", ++ p, nxi, nxi->nx_id, ++ atomic_read(&nxi->nx_usecnt), ++ atomic_read(&nxi->nx_tasks)); ++ ++ /* maybe disallow this completely? */ ++ old_nxi = task_get_nx_info(p); ++ if (old_nxi == nxi) ++ goto out; ++ ++ task_lock(p); ++ if (old_nxi) ++ clr_nx_info(&p->nx_info); ++ claim_nx_info(nxi, p); ++ set_nx_info(&p->nx_info, nxi); ++ p->nid = nxi->nx_id; ++ task_unlock(p); ++ ++ vxdprintk(VXD_CBIT(nid, 5), ++ "moved task %p into nxi:%p[#%d]", ++ p, nxi, nxi->nx_id); ++ ++ if (old_nxi) ++ release_nx_info(old_nxi, p); ++out: ++ put_nx_info(old_nxi); ++ return ret; ++} ++ ++ ++#ifdef CONFIG_INET ++ ++#include <linux/netdevice.h> ++#include <linux/inetdevice.h> ++ ++int ifa_in_nx_info(struct in_ifaddr *ifa, struct nx_info *nxi) ++{ ++ if (!nxi) ++ return 1; ++ if (!ifa) ++ return 0; ++ return addr_in_nx_info(nxi, ifa->ifa_address); ++} ++ ++int dev_in_nx_info(struct net_device *dev, struct nx_info *nxi) ++{ ++ struct in_device *in_dev; ++ struct in_ifaddr **ifap; ++ struct in_ifaddr *ifa; ++ int ret = 0; ++ ++ if (!nxi) ++ return 1; ++ ++ in_dev = in_dev_get(dev); ++ if (!in_dev) ++ goto out; ++ ++ for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; ++ ifap = &ifa->ifa_next) { ++ if (addr_in_nx_info(nxi, ifa->ifa_address)) { ++ ret = 1; ++ break; ++ } ++ } ++ in_dev_put(in_dev); ++out: ++ return ret; ++} ++ ++/* ++ * check if address is covered by socket ++ * ++ * sk: the socket to check against ++ * addr: the address in question (must be != 0) ++ */ ++static inline int __addr_in_socket(struct sock *sk, uint32_t addr) ++{ ++ struct nx_info *nxi = sk->sk_nx_info; ++ uint32_t saddr = inet_rcv_saddr(sk); ++ ++ vxdprintk(VXD_CBIT(net, 5), ++ "__addr_in_socket(%p,%d.%d.%d.%d) %p:%d.%d.%d.%d %p;%lx", ++ sk, VXD_QUAD(addr), nxi, VXD_QUAD(saddr), sk->sk_socket, ++ (sk->sk_socket?sk->sk_socket->flags:0)); ++ ++ if (saddr) { ++ /* direct address match */ ++ return (saddr == addr); ++ } else if (nxi) { ++ /* match against nx_info */ ++ return addr_in_nx_info(nxi, addr); ++ } else { ++ /* unrestricted any socket */ ++ return 1; ++ } ++} ++ ++ ++int nx_addr_conflict(struct nx_info *nxi, uint32_t addr, struct sock *sk) ++{ ++ vxdprintk(VXD_CBIT(net, 2), ++ "nx_addr_conflict(%p,%p) %d.%d,%d.%d", ++ nxi, sk, VXD_QUAD(addr)); ++ ++ if (addr) { ++ /* check real address */ ++ return __addr_in_socket(sk, addr); ++ } else if (nxi) { ++ /* check against nx_info */ ++ int i, n = nxi->nbipv4; ++ ++ for (i=0; i<n; i++) ++ if (__addr_in_socket(sk, nxi->ipv4[i])) ++ return 1; ++ return 0; ++ } else { ++ /* check against any */ ++ return 1; ++ } ++} ++ ++#endif /* CONFIG_INET */ ++ ++/* vserver syscall commands below here */ ++ ++/* taks nid and nx_info functions */ ++ ++#include <asm/uaccess.h> ++ ++ ++int vc_task_nid(uint32_t id, void __user *data) ++{ ++ nid_t nid; ++ ++ if (id) { ++ struct task_struct *tsk; ++ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return -EPERM; ++ ++ read_lock(&tasklist_lock); ++ tsk = find_task_by_real_pid(id); ++ nid = (tsk) ? tsk->nid : -ESRCH; ++ read_unlock(&tasklist_lock); ++ } ++ else ++ nid = current->nid; ++ return nid; ++} ++ ++ ++int vc_nx_info(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_nx_info_v0 vc_data; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE)) ++ return -EPERM; ++ ++ nxi = locate_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ vc_data.nid = nxi->nx_id; ++ put_nx_info(nxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++ ++/* network functions */ ++ ++int vc_net_create(uint32_t nid, void __user *data) ++{ ++ struct vcmd_net_create vc_data = { .flagword = NXF_INIT_SET }; ++ struct nx_info *new_nxi; ++ int ret; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ if ((nid > MAX_S_CONTEXT) && (nid != VX_DYNAMIC_ID)) ++ return -EINVAL; ++ if (nid < 2) ++ return -EINVAL; ++ ++ new_nxi = __create_nx_info(nid); ++ if (IS_ERR(new_nxi)) ++ return PTR_ERR(new_nxi); ++ ++ /* initial flags */ ++ new_nxi->nx_flags = vc_data.flagword; ++ ++ vs_net_change(new_nxi, VSC_NETUP); ++ ret = new_nxi->nx_id; ++ nx_migrate_task(current, new_nxi); ++ /* if this fails, we might end up with a hashed nx_info */ ++ put_nx_info(new_nxi); ++ return ret; ++} ++ ++ ++int vc_net_migrate(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ nxi = locate_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ nx_migrate_task(current, nxi); ++ put_nx_info(nxi); ++ return 0; ++} ++ ++int vc_net_add(uint32_t nid, void __user *data) ++{ ++ struct vcmd_net_addr_v0 vc_data; ++ struct nx_info *nxi; ++ int index, pos, ret = 0; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ switch (vc_data.type) { ++ case NXA_TYPE_IPV4: ++ if ((vc_data.count < 1) || (vc_data.count > 4)) ++ return -EINVAL; ++ break; ++ ++ default: ++ break; ++ } ++ ++ nxi = locate_nx_info(nid); ++ if (!nxi) ++ return -ESRCH; ++ ++ switch (vc_data.type) { ++ case NXA_TYPE_IPV4: ++ index = 0; ++ while ((index < vc_data.count) && ++ ((pos = nxi->nbipv4) < NB_IPV4ROOT)) { ++ nxi->ipv4[pos] = vc_data.ip[index]; ++ nxi->mask[pos] = vc_data.mask[index]; ++ index++; ++ nxi->nbipv4++; ++ } ++ ret = index; ++ break; ++ ++ case NXA_TYPE_IPV4|NXA_MOD_BCAST: ++ nxi->v4_bcast = vc_data.ip[0]; ++ ret = 1; ++ break; ++ ++ default: ++ ret = -EINVAL; ++ break; ++ } ++ ++ put_nx_info(nxi); ++ return ret; ++} ++ ++int vc_net_remove(uint32_t nid, void __user *data) ++{ ++ struct vcmd_net_addr_v0 vc_data; ++ struct nx_info *nxi; ++ int ret = 0; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (data && copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ nxi = locate_nx_info(nid); ++ if (!nxi) ++ return -ESRCH; ++ ++ switch ((unsigned)vc_data.type) { ++ case NXA_TYPE_ANY: ++ nxi->nbipv4 = 0; ++ break; ++ ++ default: ++ ret = -EINVAL; ++ break; ++ } ++ ++ put_nx_info(nxi); ++ return ret; ++} ++ ++int vc_get_nflags(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_net_flags_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ nxi = locate_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ vc_data.flagword = nxi->nx_flags; ++ ++ /* special STATE flag handling */ ++ vc_data.mask = vx_mask_flags(~0UL, nxi->nx_flags, NXF_ONE_TIME); ++ ++ put_nx_info(nxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_nflags(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_net_flags_v0 vc_data; ++ uint64_t mask, trigger; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ nxi = locate_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ /* special STATE flag handling */ ++ mask = vx_mask_mask(vc_data.mask, nxi->nx_flags, NXF_ONE_TIME); ++ trigger = (mask & nxi->nx_flags) ^ (mask & vc_data.flagword); ++ ++ nxi->nx_flags = vx_mask_flags(nxi->nx_flags, ++ vc_data.flagword, mask); ++ put_nx_info(nxi); ++ return 0; ++} ++ ++int vc_get_ncaps(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_net_caps_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ ++ nxi = locate_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ vc_data.ncaps = nxi->nx_ncaps; ++ vc_data.cmask = ~0UL; ++ put_nx_info(nxi); ++ ++ if (copy_to_user (data, &vc_data, sizeof(vc_data))) ++ return -EFAULT; ++ return 0; ++} ++ ++int vc_set_ncaps(uint32_t id, void __user *data) ++{ ++ struct nx_info *nxi; ++ struct vcmd_net_caps_v0 vc_data; ++ ++ if (!capable(CAP_SYS_ADMIN)) ++ return -EPERM; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ nxi = locate_nx_info(id); ++ if (!nxi) ++ return -ESRCH; ++ ++ nxi->nx_ncaps = vx_mask_flags(nxi->nx_ncaps, ++ vc_data.ncaps, vc_data.cmask); ++ put_nx_info(nxi); ++ return 0; ++} ++ ++ ++#include <linux/module.h> ++ ++EXPORT_SYMBOL_GPL(free_nx_info); ++EXPORT_SYMBOL_GPL(unhash_nx_info); ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/proc.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/proc.c +@@ -0,0 +1,862 @@ ++/* ++ * linux/kernel/vserver/proc.c ++ * ++ * Virtual Context Support ++ * ++ * Copyright (C) 2003-2006 Herbert Pötzl ++ * ++ * V0.01 basic structure ++ * V0.02 adaptation vs1.3.0 ++ * V0.03 proc permissions ++ * V0.04 locking/generic ++ * V0.05 next generation procfs ++ * V0.06 inode validation ++ * V0.07 generic rewrite vid ++ * ++ */ ++ ++#include <linux/errno.h> ++#include <linux/proc_fs.h> ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_cvirt.h> ++ ++#include <linux/vserver/switch.h> ++ ++#include <asm/uaccess.h> ++#include <asm/unistd.h> ++ ++#include "cvirt_proc.h" ++#include "limit_proc.h" ++#include "sched_proc.h" ++#include "vci_config.h" ++ ++static struct proc_dir_entry *proc_virtual; ++ ++static struct proc_dir_entry *proc_vnet; ++ ++ ++enum vid_directory_inos { ++ PROC_XID_INO = 32, ++ PROC_XID_INFO, ++ PROC_XID_STATUS, ++ PROC_XID_LIMIT, ++ PROC_XID_SCHED, ++ PROC_XID_CVIRT, ++ PROC_XID_CACCT, ++ ++ PROC_NID_INO = 64, ++ PROC_NID_INFO, ++ PROC_NID_STATUS, ++}; ++ ++#define PROC_VID_MASK 0x60 ++ ++ ++/* first the actual feeds */ ++ ++ ++static int proc_virtual_info(int vid, char *buffer) ++{ ++ return sprintf(buffer, ++ "VCIVersion:\t%04x:%04x\n" ++ "VCISyscall:\t%d\n" ++ "VCIKernel:\t%08x\n" ++ ,VCI_VERSION >> 16 ++ ,VCI_VERSION & 0xFFFF ++ ,__NR_vserver ++ ,vci_kernel_config() ++ ); ++} ++ ++ ++int proc_xid_info (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = locate_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = sprintf(buffer, ++ "ID:\t%d\n" ++ "Info:\t%p\n" ++ "Init:\t%d\n" ++ ,vxi->vx_id ++ ,vxi ++ ,vxi->vx_initpid ++ ); ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_status (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = locate_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = sprintf(buffer, ++ "UseCnt:\t%d\n" ++ "Tasks:\t%d\n" ++ "Flags:\t%016llx\n" ++ "BCaps:\t%016llx\n" ++ "CCaps:\t%016llx\n" ++ "Ticks:\t%d\n" ++ ,atomic_read(&vxi->vx_usecnt) ++ ,atomic_read(&vxi->vx_tasks) ++ ,(unsigned long long)vxi->vx_flags ++ ,(unsigned long long)vxi->vx_bcaps ++ ,(unsigned long long)vxi->vx_ccaps ++ ,atomic_read(&vxi->limit.ticks) ++ ); ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_limit (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = locate_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = vx_info_proc_limit(&vxi->limit, buffer); ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_sched (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = locate_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = vx_info_proc_sched(&vxi->sched, buffer); ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_cvirt (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = locate_vx_info(vid); ++ if (!vxi) ++ return 0; ++ vx_update_load(vxi); ++ length = vx_info_proc_cvirt(&vxi->cvirt, buffer); ++ put_vx_info(vxi); ++ return length; ++} ++ ++int proc_xid_cacct (int vid, char *buffer) ++{ ++ struct vx_info *vxi; ++ int length; ++ ++ vxi = locate_vx_info(vid); ++ if (!vxi) ++ return 0; ++ length = vx_info_proc_cacct(&vxi->cacct, buffer); ++ put_vx_info(vxi); ++ return length; ++} ++ ++ ++static int proc_vnet_info(int vid, char *buffer) ++{ ++ return sprintf(buffer, ++ "VCIVersion:\t%04x:%04x\n" ++ "VCISyscall:\t%d\n" ++ ,VCI_VERSION >> 16 ++ ,VCI_VERSION & 0xFFFF ++ ,__NR_vserver ++ ); ++} ++ ++#define atoquad(a) \ ++ (((a)>>0) & 0xff), (((a)>>8) & 0xff), \ ++ (((a)>>16) & 0xff), (((a)>>24) & 0xff) ++ ++int proc_nid_info (int vid, char *buffer) ++{ ++ struct nx_info *nxi; ++ int length, i; ++ ++ nxi = locate_nx_info(vid); ++ if (!nxi) ++ return 0; ++ length = sprintf(buffer, ++ "ID:\t%d\n" ++ "Info:\t%p\n" ++ ,nxi->nx_id ++ ,nxi ++ ); ++ for (i=0; i<nxi->nbipv4; i++) { ++ length += sprintf(buffer + length, ++ "%d:\t%d.%d.%d.%d/%d.%d.%d.%d\n", i, ++ atoquad(nxi->ipv4[i]), ++ atoquad(nxi->mask[i])); ++ } ++ put_nx_info(nxi); ++ return length; ++} ++ ++int proc_nid_status (int vid, char *buffer) ++{ ++ struct nx_info *nxi; ++ int length; ++ ++ nxi = locate_nx_info(vid); ++ if (!nxi) ++ return 0; ++ length = sprintf(buffer, ++ "UseCnt:\t%d\n" ++ "Tasks:\t%d\n" ++ ,atomic_read(&nxi->nx_usecnt) ++ ,atomic_read(&nxi->nx_tasks) ++ ); ++ put_nx_info(nxi); ++ return length; ++} ++ ++/* here the inode helpers */ ++ ++ ++#define fake_ino(id,nr) (((nr) & 0xFFFF) | \ ++ (((id) & 0xFFFF) << 16)) ++ ++#define inode_vid(i) (((i)->i_ino >> 16) & 0xFFFF) ++#define inode_type(i) ((i)->i_ino & 0xFFFF) ++ ++#define MAX_MULBY10 ((~0U-9)/10) ++ ++ ++static struct inode *proc_vid_make_inode(struct super_block * sb, ++ int vid, int ino) ++{ ++ struct inode *inode = new_inode(sb); ++ ++ if (!inode) ++ goto out; ++ ++ inode->i_mtime = inode->i_atime = ++ inode->i_ctime = CURRENT_TIME; ++ inode->i_ino = fake_ino(vid, ino); ++ ++ inode->i_uid = 0; ++ inode->i_gid = 0; ++out: ++ return inode; ++} ++ ++static int proc_vid_revalidate(struct dentry * dentry, struct nameidata *nd) ++{ ++ struct inode * inode = dentry->d_inode; ++ int vid, hashed=0; ++ ++ vid = inode_vid(inode); ++ switch (inode_type(inode) & PROC_VID_MASK) { ++ case PROC_XID_INO: ++ hashed = xid_is_hashed(vid); ++ break; ++ case PROC_NID_INO: ++ hashed = nid_is_hashed(vid); ++ break; ++ } ++ if (hashed) ++ return 1; ++ d_drop(dentry); ++ return 0; ++} ++ ++ ++#define PROC_BLOCK_SIZE (PAGE_SIZE - 1024) ++ ++static ssize_t proc_vid_info_read(struct file * file, char * buf, ++ size_t count, loff_t *ppos) ++{ ++ struct inode * inode = file->f_dentry->d_inode; ++ unsigned long page; ++ ssize_t length; ++ int vid; ++ ++ if (count > PROC_BLOCK_SIZE) ++ count = PROC_BLOCK_SIZE; ++ if (!(page = __get_free_page(GFP_KERNEL))) ++ return -ENOMEM; ++ ++ vid = inode_vid(inode); ++ length = PROC_I(inode)->op.proc_vid_read(vid, (char*)page); ++ ++ if (length >= 0) ++ length = simple_read_from_buffer(buf, count, ppos, ++ (char *)page, length); ++ free_page(page); ++ return length; ++} ++ ++ ++ ++ ++ ++/* here comes the lower level (vid) */ ++ ++static struct file_operations proc_vid_info_file_operations = { ++ read: proc_vid_info_read, ++}; ++ ++static struct dentry_operations proc_vid_dentry_operations = { ++ d_revalidate: proc_vid_revalidate, ++}; ++ ++ ++struct vid_entry { ++ int type; ++ int len; ++ char *name; ++ mode_t mode; ++}; ++ ++#define E(type,name,mode) {(type),sizeof(name)-1,(name),(mode)} ++ ++static struct vid_entry vx_base_stuff[] = { ++ E(PROC_XID_INFO, "info", S_IFREG|S_IRUGO), ++ E(PROC_XID_STATUS, "status", S_IFREG|S_IRUGO), ++ E(PROC_XID_LIMIT, "limit", S_IFREG|S_IRUGO), ++ E(PROC_XID_SCHED, "sched", S_IFREG|S_IRUGO), ++ E(PROC_XID_CVIRT, "cvirt", S_IFREG|S_IRUGO), ++ E(PROC_XID_CACCT, "cacct", S_IFREG|S_IRUGO), ++ {0,0,NULL,0} ++}; ++ ++static struct vid_entry vn_base_stuff[] = { ++ E(PROC_NID_INFO, "info", S_IFREG|S_IRUGO), ++ E(PROC_NID_STATUS, "status", S_IFREG|S_IRUGO), ++ {0,0,NULL,0} ++}; ++ ++ ++ ++static struct dentry *proc_vid_lookup(struct inode *dir, ++ struct dentry *dentry, struct nameidata *nd) ++{ ++ struct inode *inode; ++ struct vid_entry *p; ++ int error; ++ ++ error = -ENOENT; ++ inode = NULL; ++ ++ switch (inode_type(dir)) { ++ case PROC_XID_INO: ++ p = vx_base_stuff; ++ break; ++ case PROC_NID_INO: ++ p = vn_base_stuff; ++ break; ++ default: ++ goto out; ++ } ++ ++ for (; p->name; p++) { ++ if (p->len != dentry->d_name.len) ++ continue; ++ if (!memcmp(dentry->d_name.name, p->name, p->len)) ++ break; ++ } ++ if (!p->name) ++ goto out; ++ ++ error = -EINVAL; ++ inode = proc_vid_make_inode(dir->i_sb, inode_vid(dir), p->type); ++ if (!inode) ++ goto out; ++ ++ switch(p->type) { ++ case PROC_XID_INFO: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_info; ++ break; ++ case PROC_XID_STATUS: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_status; ++ break; ++ case PROC_XID_LIMIT: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_limit; ++ break; ++ case PROC_XID_SCHED: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_sched; ++ break; ++ case PROC_XID_CVIRT: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_cvirt; ++ break; ++ case PROC_XID_CACCT: ++ PROC_I(inode)->op.proc_vid_read = proc_xid_cacct; ++ break; ++ ++ case PROC_NID_INFO: ++ PROC_I(inode)->op.proc_vid_read = proc_nid_info; ++ break; ++ case PROC_NID_STATUS: ++ PROC_I(inode)->op.proc_vid_read = proc_nid_status; ++ break; ++ ++ default: ++ printk("procfs: impossible type (%d)",p->type); ++ iput(inode); ++ return ERR_PTR(-EINVAL); ++ } ++ inode->i_mode = p->mode; ++ inode->i_fop = &proc_vid_info_file_operations; ++ inode->i_nlink = 1; ++ inode->i_flags|=S_IMMUTABLE; ++ ++ dentry->d_op = &proc_vid_dentry_operations; ++ d_add(dentry, inode); ++ error = 0; ++out: ++ return ERR_PTR(error); ++} ++ ++ ++static int proc_vid_readdir(struct file * filp, ++ void * dirent, filldir_t filldir) ++{ ++ int i, size; ++ struct inode *inode = filp->f_dentry->d_inode; ++ struct vid_entry *p; ++ ++ i = filp->f_pos; ++ switch (i) { ++ case 0: ++ if (filldir(dirent, ".", 1, i, ++ inode->i_ino, DT_DIR) < 0) ++ return 0; ++ i++; ++ filp->f_pos++; ++ /* fall through */ ++ case 1: ++ if (filldir(dirent, "..", 2, i, ++ PROC_ROOT_INO, DT_DIR) < 0) ++ return 0; ++ i++; ++ filp->f_pos++; ++ /* fall through */ ++ default: ++ i -= 2; ++ switch (inode_type(inode)) { ++ case PROC_XID_INO: ++ size = sizeof(vx_base_stuff); ++ p = vx_base_stuff + i; ++ break; ++ case PROC_NID_INO: ++ size = sizeof(vn_base_stuff); ++ p = vn_base_stuff + i; ++ break; ++ default: ++ return 1; ++ } ++ if (i >= size/sizeof(struct vid_entry)) ++ return 1; ++ while (p->name) { ++ if (filldir(dirent, p->name, p->len, ++ filp->f_pos, fake_ino(inode_vid(inode), ++ p->type), p->mode >> 12) < 0) ++ return 0; ++ filp->f_pos++; ++ p++; ++ } ++ } ++ return 1; ++} ++ ++ ++ ++ ++/* now the upper level (virtual) */ ++ ++static struct file_operations proc_vid_file_operations = { ++ read: generic_read_dir, ++ readdir: proc_vid_readdir, ++}; ++ ++static struct inode_operations proc_vid_inode_operations = { ++ lookup: proc_vid_lookup, ++}; ++ ++ ++ ++static __inline__ int atovid(const char *str, int len) ++{ ++ int vid, c; ++ ++ vid = 0; ++ while (len-- > 0) { ++ c = *str - '0'; ++ str++; ++ if (c > 9) ++ return -1; ++ if (vid >= MAX_MULBY10) ++ return -1; ++ vid *= 10; ++ vid += c; ++ if (!vid) ++ return -1; ++ } ++ return vid; ++} ++ ++ ++struct dentry *proc_virtual_lookup(struct inode *dir, ++ struct dentry * dentry, struct nameidata *nd) ++{ ++ int xid, len, ret; ++ struct vx_info *vxi; ++ const char *name; ++ struct inode *inode; ++ ++ name = dentry->d_name.name; ++ len = dentry->d_name.len; ++ ret = -ENOMEM; ++ ++ if (len == 7 && !memcmp(name, "current", 7)) { ++ inode = new_inode(dir->i_sb); ++ if (!inode) ++ goto out; ++ inode->i_mtime = inode->i_atime = ++ inode->i_ctime = CURRENT_TIME; ++ inode->i_ino = fake_ino(1, PROC_XID_INO); ++ inode->i_mode = S_IFLNK|S_IRWXUGO; ++ inode->i_uid = inode->i_gid = 0; ++ d_add(dentry, inode); ++ return NULL; ++ } ++ if (len == 4 && !memcmp(name, "info", 4)) { ++ inode = proc_vid_make_inode(dir->i_sb, 0, PROC_XID_INFO); ++ if (!inode) ++ goto out; ++ inode->i_fop = &proc_vid_info_file_operations; ++ PROC_I(inode)->op.proc_vid_read = proc_virtual_info; ++ inode->i_mode = S_IFREG|S_IRUGO; ++ d_add(dentry, inode); ++ return NULL; ++ } ++ ++ ret = -ENOENT; ++ xid = atovid(name, len); ++ if (xid < 0) ++ goto out; ++ vxi = locate_vx_info(xid); ++ if (!vxi) ++ goto out; ++ ++ inode = NULL; ++ if (vx_check(xid, VX_ADMIN|VX_WATCH|VX_IDENT)) ++ inode = proc_vid_make_inode(dir->i_sb, ++ vxi->vx_id, PROC_XID_INO); ++ if (!inode) ++ goto out_release; ++ ++ inode->i_mode = S_IFDIR|S_IRUGO; ++ inode->i_op = &proc_vid_inode_operations; ++ inode->i_fop = &proc_vid_file_operations; ++ inode->i_nlink = 2; ++ inode->i_flags|=S_IMMUTABLE; ++ ++ dentry->d_op = &proc_vid_dentry_operations; ++ d_add(dentry, inode); ++ ret = 0; ++ ++out_release: ++ put_vx_info(vxi); ++out: ++ return ERR_PTR(ret); ++} ++ ++ ++struct dentry *proc_vnet_lookup(struct inode *dir, ++ struct dentry * dentry, struct nameidata *nd) ++{ ++ int nid, len, ret; ++ struct nx_info *nxi; ++ const char *name; ++ struct inode *inode; ++ ++ name = dentry->d_name.name; ++ len = dentry->d_name.len; ++ ret = -ENOMEM; ++ if (len == 7 && !memcmp(name, "current", 7)) { ++ inode = new_inode(dir->i_sb); ++ if (!inode) ++ goto out; ++ inode->i_mtime = inode->i_atime = ++ inode->i_ctime = CURRENT_TIME; ++ inode->i_ino = fake_ino(1, PROC_NID_INO); ++ inode->i_mode = S_IFLNK|S_IRWXUGO; ++ inode->i_uid = inode->i_gid = 0; ++ d_add(dentry, inode); ++ return NULL; ++ } ++ if (len == 4 && !memcmp(name, "info", 4)) { ++ inode = proc_vid_make_inode(dir->i_sb, 0, PROC_NID_INFO); ++ if (!inode) ++ goto out; ++ inode->i_fop = &proc_vid_info_file_operations; ++ PROC_I(inode)->op.proc_vid_read = proc_vnet_info; ++ inode->i_mode = S_IFREG|S_IRUGO; ++ d_add(dentry, inode); ++ return NULL; ++ } ++ ++ ret = -ENOENT; ++ nid = atovid(name, len); ++ if (nid < 0) ++ goto out; ++ nxi = locate_nx_info(nid); ++ if (!nxi) ++ goto out; ++ ++ inode = NULL; ++ if (1) ++ inode = proc_vid_make_inode(dir->i_sb, ++ nxi->nx_id, PROC_NID_INO); ++ if (!inode) ++ goto out_release; ++ ++ inode->i_mode = S_IFDIR|S_IRUGO; ++ inode->i_op = &proc_vid_inode_operations; ++ inode->i_fop = &proc_vid_file_operations; ++ inode->i_nlink = 2; ++ inode->i_flags|=S_IMMUTABLE; ++ ++ dentry->d_op = &proc_vid_dentry_operations; ++ d_add(dentry, inode); ++ ret = 0; ++ ++out_release: ++ put_nx_info(nxi); ++out: ++ return ERR_PTR(ret); ++} ++ ++ ++ ++ ++#define PROC_NUMBUF 10 ++#define PROC_MAXVIDS 32 ++ ++int proc_virtual_readdir(struct file * filp, ++ void * dirent, filldir_t filldir) ++{ ++ unsigned int xid_array[PROC_MAXVIDS]; ++ char buf[PROC_NUMBUF]; ++ unsigned int nr = filp->f_pos-3; ++ unsigned int nr_xids, i; ++ ino_t ino; ++ ++ switch ((long)filp->f_pos) { ++ case 0: ++ ino = fake_ino(0, PROC_XID_INO); ++ if (filldir(dirent, ".", 1, ++ filp->f_pos, ino, DT_DIR) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 1: ++ ino = filp->f_dentry->d_parent->d_inode->i_ino; ++ if (filldir(dirent, "..", 2, ++ filp->f_pos, ino, DT_DIR) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 2: ++ ino = fake_ino(0, PROC_XID_INFO); ++ if (filldir(dirent, "info", 4, ++ filp->f_pos, ino, DT_LNK) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 3: ++ if (vx_current_xid() > 1) { ++ ino = fake_ino(1, PROC_XID_INO); ++ if (filldir(dirent, "current", 7, ++ filp->f_pos, ino, DT_LNK) < 0) ++ return 0; ++ } ++ filp->f_pos++; ++ } ++ ++ nr_xids = get_xid_list(nr, xid_array, PROC_MAXVIDS); ++ for (i = 0; i < nr_xids; i++) { ++ int xid = xid_array[i]; ++ ino_t ino = fake_ino(xid, PROC_XID_INO); ++ unsigned int j = PROC_NUMBUF; ++ ++ do buf[--j] = '0' + (xid % 10); while (xid/=10); ++ ++ if (filldir(dirent, buf+j, PROC_NUMBUF-j, ++ filp->f_pos, ino, DT_DIR) < 0) ++ break; ++ filp->f_pos++; ++ } ++ return 0; ++} ++ ++ ++static struct file_operations proc_virtual_dir_operations = { ++ read: generic_read_dir, ++ readdir: proc_virtual_readdir, ++}; ++ ++static struct inode_operations proc_virtual_dir_inode_operations = { ++ lookup: proc_virtual_lookup, ++}; ++ ++ ++int proc_vnet_readdir(struct file * filp, ++ void * dirent, filldir_t filldir) ++{ ++ unsigned int nid_array[PROC_MAXVIDS]; ++ char buf[PROC_NUMBUF]; ++ unsigned int nr = filp->f_pos-3; ++ unsigned int nr_nids, i; ++ ino_t ino; ++ ++ switch ((long)filp->f_pos) { ++ case 0: ++ ino = fake_ino(0, PROC_NID_INO); ++ if (filldir(dirent, ".", 1, ++ filp->f_pos, ino, DT_DIR) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 1: ++ ino = filp->f_dentry->d_parent->d_inode->i_ino; ++ if (filldir(dirent, "..", 2, ++ filp->f_pos, ino, DT_DIR) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 2: ++ ino = fake_ino(0, PROC_NID_INFO); ++ if (filldir(dirent, "info", 4, ++ filp->f_pos, ino, DT_LNK) < 0) ++ return 0; ++ filp->f_pos++; ++ /* fall through */ ++ case 3: ++ if (vx_current_xid() > 1) { ++ ino = fake_ino(1, PROC_NID_INO); ++ if (filldir(dirent, "current", 7, ++ filp->f_pos, ino, DT_LNK) < 0) ++ return 0; ++ } ++ filp->f_pos++; ++ } ++ ++ nr_nids = get_nid_list(nr, nid_array, PROC_MAXVIDS); ++ for (i = 0; i < nr_nids; i++) { ++ int nid = nid_array[i]; ++ ino_t ino = fake_ino(nid, PROC_NID_INO); ++ unsigned long j = PROC_NUMBUF; ++ ++ do buf[--j] = '0' + (nid % 10); while (nid/=10); ++ ++ if (filldir(dirent, buf+j, PROC_NUMBUF-j, ++ filp->f_pos, ino, DT_DIR) < 0) ++ break; ++ filp->f_pos++; ++ } ++ return 0; ++} ++ ++ ++static struct file_operations proc_vnet_dir_operations = { ++ read: generic_read_dir, ++ readdir: proc_vnet_readdir, ++}; ++ ++static struct inode_operations proc_vnet_dir_inode_operations = { ++ lookup: proc_vnet_lookup, ++}; ++ ++ ++ ++void proc_vx_init(void) ++{ ++ struct proc_dir_entry *ent; ++ ++ ent = proc_mkdir("virtual", 0); ++ if (ent) { ++ ent->proc_fops = &proc_virtual_dir_operations; ++ ent->proc_iops = &proc_virtual_dir_inode_operations; ++ } ++ proc_virtual = ent; ++ ++ ent = proc_mkdir("virtnet", 0); ++ if (ent) { ++ ent->proc_fops = &proc_vnet_dir_operations; ++ ent->proc_iops = &proc_vnet_dir_inode_operations; ++ } ++ proc_vnet = ent; ++} ++ ++ ++ ++ ++/* per pid info */ ++ ++ ++int proc_pid_vx_info(struct task_struct *p, char *buffer) ++{ ++ struct vx_info *vxi; ++ char * orig = buffer; ++ ++ buffer += sprintf (buffer,"XID:\t%d\n", vx_task_xid(p)); ++ vxi = task_get_vx_info(p); ++ if (vxi && !vx_flags(VXF_INFO_HIDE, 0)) { ++ buffer += sprintf (buffer,"BCaps:\t%016llx\n" ++ ,(unsigned long long)vxi->vx_bcaps); ++ buffer += sprintf (buffer,"CCaps:\t%016llx\n" ++ ,(unsigned long long)vxi->vx_ccaps); ++ buffer += sprintf (buffer,"CFlags:\t%016llx\n" ++ ,(unsigned long long)vxi->vx_flags); ++ buffer += sprintf (buffer,"CIPid:\t%d\n" ++ ,vxi->vx_initpid); ++ } ++ put_vx_info(vxi); ++ return buffer - orig; ++} ++ ++ ++int proc_pid_nx_info(struct task_struct *p, char *buffer) ++{ ++ struct nx_info *nxi; ++ char * orig = buffer; ++ ++ buffer += sprintf (buffer,"NID:\t%d\n", nx_task_nid(p)); ++ nxi = task_get_nx_info(p); ++ if (nxi && !vx_flags(VXF_INFO_HIDE, 0)) { ++ int i; ++ ++ for (i=0; i<nxi->nbipv4; i++){ ++ buffer += sprintf (buffer, ++ "V4Root[%d]:\t%d.%d.%d.%d/%d.%d.%d.%d\n", i ++ ,NIPQUAD(nxi->ipv4[i]) ++ ,NIPQUAD(nxi->mask[i])); ++ } ++ buffer += sprintf (buffer, ++ "V4Root[bcast]:\t%d.%d.%d.%d\n" ++ ,NIPQUAD(nxi->v4_bcast)); ++ } ++ put_nx_info(nxi); ++ return buffer - orig; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/sched.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/sched.c +@@ -0,0 +1,218 @@ ++/* ++ * linux/kernel/vserver/sched.c ++ * ++ * Virtual Server: Scheduler Support ++ * ++ * Copyright (C) 2004-2005 Herbert Pötzl ++ * ++ * V0.01 adapted Sam Vilains version to 2.6.3 ++ * V0.02 removed legacy interface ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/sched.h> ++#include <linux/vs_context.h> ++#include <linux/vs_sched.h> ++#include <linux/vserver/sched_cmd.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++ ++/* ++ * recalculate the context's scheduling tokens ++ * ++ * ret > 0 : number of tokens available ++ * ret = 0 : context is paused ++ * ret < 0 : number of jiffies until new tokens arrive ++ * ++ */ ++int vx_tokens_recalc(struct vx_info *vxi) ++{ ++ long delta, tokens = 0; ++ ++ if (vx_info_flags(vxi, VXF_SCHED_PAUSE, 0)) ++ /* we are paused */ ++ return 0; ++ ++ delta = jiffies - vxi->sched.jiffies; ++ ++ if (delta >= vxi->sched.interval) { ++ /* lockdown scheduler info */ ++ spin_lock(&vxi->sched.tokens_lock); ++ ++ /* calc integral token part */ ++ delta = jiffies - vxi->sched.jiffies; ++ tokens = delta / vxi->sched.interval; ++ delta = tokens * vxi->sched.interval; ++ tokens *= vxi->sched.fill_rate; ++ ++ atomic_add(tokens, &vxi->sched.tokens); ++ vxi->sched.jiffies += delta; ++ tokens = atomic_read(&vxi->sched.tokens); ++ ++ if (tokens > vxi->sched.tokens_max) { ++ tokens = vxi->sched.tokens_max; ++ atomic_set(&vxi->sched.tokens, tokens); ++ } ++ spin_unlock(&vxi->sched.tokens_lock); ++ } else { ++ /* no new tokens */ ++ tokens = vx_tokens_avail(vxi); ++ if (tokens <= 0) ++ vxi->vx_state |= VXS_ONHOLD; ++ if (tokens < vxi->sched.tokens_min) { ++ /* enough tokens will be available in */ ++ if (vxi->sched.tokens_min == 0) ++ return delta - vxi->sched.interval; ++ return delta - vxi->sched.interval * ++ vxi->sched.tokens_min / vxi->sched.fill_rate; ++ } ++ } ++ ++ /* we have some tokens left */ ++ if (vx_info_state(vxi, VXS_ONHOLD) && ++ (tokens >= vxi->sched.tokens_min)) ++ vxi->vx_state &= ~VXS_ONHOLD; ++ if (vx_info_state(vxi, VXS_ONHOLD)) ++ tokens -= vxi->sched.tokens_min; ++ ++ return tokens; ++} ++ ++/* ++ * effective_prio - return the priority that is based on the static ++ * priority but is modified by bonuses/penalties. ++ * ++ * We scale the actual sleep average [0 .... MAX_SLEEP_AVG] ++ * into a -4 ... 0 ... +4 bonus/penalty range. ++ * ++ * Additionally, we scale another amount based on the number of ++ * CPU tokens currently held by the context, if the process is ++ * part of a context (and the appropriate SCHED flag is set). ++ * This ranges from -5 ... 0 ... +15, quadratically. ++ * ++ * So, the total bonus is -9 .. 0 .. +19 ++ * We use ~50% of the full 0...39 priority range so that: ++ * ++ * 1) nice +19 interactive tasks do not preempt nice 0 CPU hogs. ++ * 2) nice -20 CPU hogs do not get preempted by nice 0 tasks. ++ * unless that context is far exceeding its CPU allocation. ++ * ++ * Both properties are important to certain workloads. ++ */ ++int vx_effective_vavavoom(struct vx_info *vxi, int max_prio) ++{ ++ int vavavoom, max; ++ ++ /* lots of tokens = lots of vavavoom ++ * no tokens = no vavavoom */ ++ if ((vavavoom = atomic_read(&vxi->sched.tokens)) >= 0) { ++ max = vxi->sched.tokens_max; ++ vavavoom = max - vavavoom; ++ max = max * max; ++ vavavoom = max_prio * VAVAVOOM_RATIO / 100 ++ * (vavavoom*vavavoom - (max >> 2)) / max; ++ } else ++ vavavoom = 0; ++ ++ vxi->sched.vavavoom = vavavoom; ++ return vavavoom; ++} ++ ++ ++int vc_set_sched_v2(uint32_t xid, void __user *data) ++{ ++ struct vcmd_set_sched_v2 vc_data; ++ struct vx_info *vxi; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = locate_vx_info(xid); ++ if (!vxi) ++ return -EINVAL; ++ ++ spin_lock(&vxi->sched.tokens_lock); ++ ++ if (vc_data.interval != SCHED_KEEP) ++ vxi->sched.interval = vc_data.interval; ++ if (vc_data.fill_rate != SCHED_KEEP) ++ vxi->sched.fill_rate = vc_data.fill_rate; ++ if (vc_data.tokens_min != SCHED_KEEP) ++ vxi->sched.tokens_min = vc_data.tokens_min; ++ if (vc_data.tokens_max != SCHED_KEEP) ++ vxi->sched.tokens_max = vc_data.tokens_max; ++ if (vc_data.tokens != SCHED_KEEP) ++ atomic_set(&vxi->sched.tokens, vc_data.tokens); ++ ++ /* Sanity check the resultant values */ ++ if (vxi->sched.fill_rate <= 0) ++ vxi->sched.fill_rate = 1; ++ if (vxi->sched.interval <= 0) ++ vxi->sched.interval = HZ; ++ if (vxi->sched.tokens_max == 0) ++ vxi->sched.tokens_max = 1; ++ if (atomic_read(&vxi->sched.tokens) > vxi->sched.tokens_max) ++ atomic_set(&vxi->sched.tokens, vxi->sched.tokens_max); ++ if (vxi->sched.tokens_min > vxi->sched.tokens_max) ++ vxi->sched.tokens_min = vxi->sched.tokens_max; ++ ++ spin_unlock(&vxi->sched.tokens_lock); ++ put_vx_info(vxi); ++ return 0; ++} ++ ++ ++int vc_set_sched(uint32_t xid, void __user *data) ++{ ++ struct vcmd_set_sched_v3 vc_data; ++ struct vx_info *vxi; ++ unsigned int set_mask; ++ ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = locate_vx_info(xid); ++ if (!vxi) ++ return -EINVAL; ++ ++ set_mask = vc_data.set_mask; ++ ++ spin_lock(&vxi->sched.tokens_lock); ++ ++ if (set_mask & VXSM_FILL_RATE) ++ vxi->sched.fill_rate = vc_data.fill_rate; ++ if (set_mask & VXSM_INTERVAL) ++ vxi->sched.interval = vc_data.interval; ++ if (set_mask & VXSM_TOKENS) ++ atomic_set(&vxi->sched.tokens, vc_data.tokens); ++ if (set_mask & VXSM_TOKENS_MIN) ++ vxi->sched.tokens_min = vc_data.tokens_min; ++ if (set_mask & VXSM_TOKENS_MAX) ++ vxi->sched.tokens_max = vc_data.tokens_max; ++ if (set_mask & VXSM_PRIO_BIAS) ++ vxi->sched.priority_bias = vc_data.priority_bias; ++ ++ /* Sanity check the resultant values */ ++ if (vxi->sched.fill_rate <= 0) ++ vxi->sched.fill_rate = 1; ++ if (vxi->sched.interval <= 0) ++ vxi->sched.interval = HZ; ++ if (vxi->sched.tokens_max == 0) ++ vxi->sched.tokens_max = 1; ++ if (atomic_read(&vxi->sched.tokens) > vxi->sched.tokens_max) ++ atomic_set(&vxi->sched.tokens, vxi->sched.tokens_max); ++ if (vxi->sched.tokens_min > vxi->sched.tokens_max) ++ vxi->sched.tokens_min = vxi->sched.tokens_max; ++ if (vxi->sched.priority_bias > MAX_PRIO_BIAS) ++ vxi->sched.priority_bias = MAX_PRIO_BIAS; ++ if (vxi->sched.priority_bias < MIN_PRIO_BIAS) ++ vxi->sched.priority_bias = MIN_PRIO_BIAS; ++ ++ spin_unlock(&vxi->sched.tokens_lock); ++ put_vx_info(vxi); ++ return 0; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/sched_init.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/sched_init.h +@@ -0,0 +1,30 @@ ++ ++static inline void vx_info_init_sched(struct _vx_sched *sched) ++{ ++ int i; ++ ++ /* scheduling; hard code starting values as constants */ ++ sched->fill_rate = 1; ++ sched->interval = 4; ++ sched->tokens_min = HZ >> 4; ++ sched->tokens_max = HZ >> 1; ++ sched->jiffies = jiffies; ++ sched->tokens_lock = SPIN_LOCK_UNLOCKED; ++ ++ atomic_set(&sched->tokens, HZ >> 2); ++ sched->cpus_allowed = CPU_MASK_ALL; ++ sched->priority_bias = 0; ++ sched->vavavoom = 0; ++ ++ for_each_cpu(i) { ++ sched->cpu[i].user_ticks = 0; ++ sched->cpu[i].sys_ticks = 0; ++ sched->cpu[i].hold_ticks = 0; ++ } ++} ++ ++static inline void vx_info_exit_sched(struct _vx_sched *sched) ++{ ++ return; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/sched_proc.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/sched_proc.h +@@ -0,0 +1,40 @@ ++#ifndef _VX_SCHED_PROC_H ++#define _VX_SCHED_PROC_H ++ ++ ++static inline int vx_info_proc_sched(struct _vx_sched *sched, char *buffer) ++{ ++ int length = 0; ++ int i; ++ ++ length += sprintf(buffer, ++ "Token:\t\t%8d\n" ++ "FillRate:\t%8d\n" ++ "Interval:\t%8d\n" ++ "TokensMin:\t%8d\n" ++ "TokensMax:\t%8d\n" ++ "PrioBias:\t%8d\n" ++ "VaVaVoom:\t%8d\n" ++ ,atomic_read(&sched->tokens) ++ ,sched->fill_rate ++ ,sched->interval ++ ,sched->tokens_min ++ ,sched->tokens_max ++ ,sched->priority_bias ++ ,sched->vavavoom ++ ); ++ ++ for_each_online_cpu(i) { ++ length += sprintf(buffer + length, ++ "cpu %d: %lld %lld %lld\n" ++ ,i ++ ,(long long)sched->cpu[i].user_ticks ++ ,(long long)sched->cpu[i].sys_ticks ++ ,(long long)sched->cpu[i].hold_ticks ++ ); ++ } ++ ++ return length; ++} ++ ++#endif /* _VX_SCHED_PROC_H */ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/signal.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/signal.c +@@ -0,0 +1,118 @@ ++/* ++ * linux/kernel/vserver/signal.c ++ * ++ * Virtual Server: Signal Support ++ * ++ * Copyright (C) 2003-2006 Herbert Pötzl ++ * ++ * V0.01 broken out from vcontext V0.05 ++ * ++ */ ++ ++#include <linux/sched.h> ++ ++#include <asm/errno.h> ++#include <asm/uaccess.h> ++ ++#include <linux/vs_context.h> ++#include <linux/vserver/signal_cmd.h> ++ ++ ++int vc_ctx_kill(uint32_t id, void __user *data) ++{ ++ int retval, count=0; ++ struct vcmd_ctx_kill_v0 vc_data; ++ struct task_struct *p; ++ struct vx_info *vxi; ++ unsigned long priv = 0; ++ ++ if (!vx_check(0, VX_ADMIN)) ++ return -ENOSYS; ++ if (copy_from_user (&vc_data, data, sizeof(vc_data))) ++ return -EFAULT; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ retval = -ESRCH; ++ read_lock(&tasklist_lock); ++ switch (vc_data.pid) { ++ case 0: ++ priv = 1; ++ case -1: ++ for_each_process(p) { ++ int err = 0; ++ ++ if (vx_task_xid(p) != id || p->pid <= 1 || ++ (vc_data.pid && vxi->vx_initpid == p->pid)) ++ continue; ++ ++ err = group_send_sig_info(vc_data.sig, (void*)priv, p); ++ ++count; ++ if (err != -EPERM) ++ retval = err; ++ } ++ break; ++ ++ case 1: ++ if (vxi->vx_initpid) { ++ vc_data.pid = vxi->vx_initpid; ++ priv = 1; ++ } ++ /* fallthrough */ ++ default: ++ p = find_task_by_real_pid(vc_data.pid); ++ if (p) { ++ if ((id == -1) || (vx_task_xid(p) == id)) ++ retval = group_send_sig_info(vc_data.sig, ++ (void*)priv, p); ++ } ++ break; ++ } ++ read_unlock(&tasklist_lock); ++ put_vx_info(vxi); ++ return retval; ++} ++ ++ ++static int __wait_exit(struct vx_info *vxi) ++{ ++ DECLARE_WAITQUEUE(wait, current); ++ int ret = 0; ++ ++ add_wait_queue(&vxi->vx_wait, &wait); ++ set_current_state(TASK_INTERRUPTIBLE); ++ ++wait: ++ if (vx_info_state(vxi, VXS_SHUTDOWN|VXS_HASHED) == VXS_SHUTDOWN) ++ goto out; ++ if (signal_pending(current)) { ++ ret = -ERESTARTSYS; ++ goto out; ++ } ++ schedule(); ++ goto wait; ++ ++out: ++ set_current_state(TASK_RUNNING); ++ remove_wait_queue(&vxi->vx_wait, &wait); ++ return ret; ++} ++ ++ ++ ++int vc_wait_exit(uint32_t id, void __user *data) ++{ ++ struct vx_info *vxi; ++ int ret; ++ ++ vxi = locate_vx_info(id); ++ if (!vxi) ++ return -ESRCH; ++ ++ ret = __wait_exit(vxi); ++ put_vx_info(vxi); ++ return ret; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/switch.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/switch.c +@@ -0,0 +1,260 @@ ++/* ++ * linux/kernel/vserver/switch.c ++ * ++ * Virtual Server: Syscall Switch ++ * ++ * Copyright (C) 2003-2005 Herbert Pötzl ++ * ++ * V0.01 syscall switch ++ * V0.02 added signal to context ++ * V0.03 added rlimit functions ++ * V0.04 added iattr, task/xid functions ++ * V0.05 added debug/history stuff ++ * V0.06 added compat32 layer ++ * ++ */ ++ ++#include <linux/config.h> ++#include <linux/linkage.h> ++#include <linux/sched.h> ++#include <linux/compat.h> ++#include <asm/errno.h> ++ ++#include <linux/vserver/network.h> ++#include <linux/vserver/switch.h> ++#include <linux/vserver/debug.h> ++ ++ ++static inline ++int vc_get_version(uint32_t id) ++{ ++#ifdef CONFIG_VSERVER_LEGACY_VERSION ++ if (id == 63) ++ return VCI_LEGACY_VERSION; ++#endif ++ return VCI_VERSION; ++} ++ ++#include <linux/vserver/context_cmd.h> ++#include <linux/vserver/cvirt_cmd.h> ++#include <linux/vserver/limit_cmd.h> ++#include <linux/vserver/network_cmd.h> ++#include <linux/vserver/sched_cmd.h> ++#include <linux/vserver/debug_cmd.h> ++#include <linux/vserver/inode_cmd.h> ++#include <linux/vserver/dlimit_cmd.h> ++#include <linux/vserver/signal_cmd.h> ++#include <linux/vserver/namespace_cmd.h> ++ ++#include <linux/vserver/legacy.h> ++#include <linux/vserver/inode.h> ++#include <linux/vserver/dlimit.h> ++ ++ ++#ifdef CONFIG_COMPAT ++#define __COMPAT(name, id, data, compat) \ ++ (compat) ? name ## _x32 (id, data) : name (id, data) ++#else ++#define __COMPAT(name, id, data, compat) \ ++ name (id, data) ++#endif ++ ++ ++static inline ++long do_vserver(uint32_t cmd, uint32_t id, void __user *data, int compat) ++{ ++ vxdprintk(VXD_CBIT(switch, 0), ++ "vc: VCMD_%02d_%d[%d], %d,%p,%d", ++ VC_CATEGORY(cmd), VC_COMMAND(cmd), ++ VC_VERSION(cmd), id, data, compat); ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ if (!capable(CAP_CONTEXT) && ++ /* dirty hack for capremove */ ++ !(cmd==VCMD_new_s_context && id==-2)) ++ return -EPERM; ++#else ++ if (!capable(CAP_CONTEXT)) ++ return -EPERM; ++#endif ++ ++ switch (cmd) { ++ case VCMD_get_version: ++ return vc_get_version(id); ++ ++ case VCMD_dump_history: ++#ifdef CONFIG_VSERVER_HISTORY ++ return vc_dump_history(id); ++#else ++ return -ENOSYS; ++#endif ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ case VCMD_new_s_context: ++ return vc_new_s_context(id, data); ++#endif ++#ifdef CONFIG_VSERVER_LEGACYNET ++ case VCMD_set_ipv4root: ++ return vc_set_ipv4root(id, data); ++#endif ++ ++ case VCMD_task_xid: ++ return vc_task_xid(id, data); ++ case VCMD_vx_info: ++ return vc_vx_info(id, data); ++ ++ case VCMD_task_nid: ++ return vc_task_nid(id, data); ++ case VCMD_nx_info: ++ return vc_nx_info(id, data); ++ ++ case VCMD_set_namespace: ++ return vc_set_namespace(id, data); ++ case VCMD_cleanup_namespace: ++ return vc_cleanup_namespace(id, data); ++ } ++ ++ /* those are allowed while in setup too */ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH) && ++ !vx_flags(VXF_STATE_SETUP,0)) ++ return -EPERM; ++ ++#ifdef CONFIG_VSERVER_LEGACY ++ switch (cmd) { ++ case VCMD_set_cflags: ++ case VCMD_set_ccaps: ++ if (vx_check(0, VX_WATCH)) ++ return 0; ++ } ++#endif ++ ++ switch (cmd) { ++ case VCMD_get_rlimit: ++ return vc_get_rlimit(id, data); ++ case VCMD_set_rlimit: ++ return vc_set_rlimit(id, data); ++ case VCMD_get_rlimit_mask: ++ return vc_get_rlimit_mask(id, data); ++ ++ case VCMD_get_vhi_name: ++ return vc_get_vhi_name(id, data); ++ case VCMD_set_vhi_name: ++ return vc_set_vhi_name(id, data); ++ ++ case VCMD_set_cflags: ++ return vc_set_cflags(id, data); ++ case VCMD_get_cflags: ++ return vc_get_cflags(id, data); ++ ++ case VCMD_set_ccaps: ++ return vc_set_ccaps(id, data); ++ case VCMD_get_ccaps: ++ return vc_get_ccaps(id, data); ++ ++ case VCMD_set_nflags: ++ return vc_set_nflags(id, data); ++ case VCMD_get_nflags: ++ return vc_get_nflags(id, data); ++ ++ case VCMD_set_ncaps: ++ return vc_set_ncaps(id, data); ++ case VCMD_get_ncaps: ++ return vc_get_ncaps(id, data); ++ ++ case VCMD_set_sched_v2: ++ return vc_set_sched_v2(id, data); ++ /* this is version 3 */ ++ case VCMD_set_sched: ++ return vc_set_sched(id, data); ++ ++ case VCMD_add_dlimit: ++ return __COMPAT(vc_add_dlimit, id, data, compat); ++ case VCMD_rem_dlimit: ++ return __COMPAT(vc_rem_dlimit, id, data, compat); ++ case VCMD_set_dlimit: ++ return __COMPAT(vc_set_dlimit, id, data, compat); ++ case VCMD_get_dlimit: ++ return __COMPAT(vc_get_dlimit, id, data, compat); ++ } ++ ++ /* below here only with VX_ADMIN */ ++ if (!vx_check(0, VX_ADMIN|VX_WATCH)) ++ return -EPERM; ++ ++ switch (cmd) { ++ case VCMD_ctx_kill: ++ return vc_ctx_kill(id, data); ++ ++ case VCMD_wait_exit: ++ return vc_wait_exit(id, data); ++ ++ case VCMD_create_context: ++#ifdef CONFIG_VSERVER_LEGACY ++ return vc_ctx_create(id, NULL); ++#else ++ return -ENOSYS; ++#endif ++ ++ case VCMD_get_iattr: ++ return __COMPAT(vc_get_iattr, id, data, compat); ++ case VCMD_set_iattr: ++ return __COMPAT(vc_set_iattr, id, data, compat); ++ ++ case VCMD_enter_namespace: ++ return vc_enter_namespace(id, data); ++ ++ case VCMD_ctx_create_v0: ++#ifdef CONFIG_VSERVER_LEGACY ++ if (id == 1) { ++ current->xid = 1; ++ return 1; ++ } ++#endif ++ return vc_ctx_create(id, NULL); ++ case VCMD_ctx_create: ++ return vc_ctx_create(id, data); ++ case VCMD_ctx_migrate: ++ return vc_ctx_migrate(id, data); ++ ++ case VCMD_net_create_v0: ++ return vc_net_create(id, NULL); ++ case VCMD_net_create: ++ return vc_net_create(id, data); ++ case VCMD_net_migrate: ++ return vc_net_migrate(id, data); ++ case VCMD_net_add: ++ return vc_net_add(id, data); ++ case VCMD_net_remove: ++ return vc_net_remove(id, data); ++ ++ } ++ return -ENOSYS; ++} ++ ++extern asmlinkage long ++sys_vserver(uint32_t cmd, uint32_t id, void __user *data) ++{ ++ long ret = do_vserver(cmd, id, data, 0); ++ ++ vxdprintk(VXD_CBIT(switch, 1), ++ "vc: VCMD_%02d_%d[%d] = %08lx(%ld)", ++ VC_CATEGORY(cmd), VC_COMMAND(cmd), ++ VC_VERSION(cmd), ret, ret); ++ return ret; ++} ++ ++#ifdef CONFIG_COMPAT ++ ++extern asmlinkage long ++sys32_vserver(uint32_t cmd, uint32_t id, void __user *data) ++{ ++ long ret = do_vserver(cmd, id, data, 1); ++ ++ vxdprintk(VXD_CBIT(switch, 1), ++ "vc: VCMD_%02d_%d[%d] = %08lx(%ld)", ++ VC_CATEGORY(cmd), VC_COMMAND(cmd), ++ VC_VERSION(cmd), ret, ret); ++ return ret; ++} ++ ++#endif /* CONFIG_COMPAT */ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/sysctl.c +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/sysctl.c +@@ -0,0 +1,216 @@ ++/* ++ * linux/kernel/sysctl.c ++ * ++ * Virtual Context Support ++ * ++ * Copyright (C) 2004-2006 Herbert Pötzl ++ * ++ * V0.01 basic structure ++ * ++ */ ++ ++#include <linux/errno.h> ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/ctype.h> ++#include <linux/sysctl.h> ++#include <linux/parser.h> ++#include <linux/fs.h> ++ ++#include <asm/uaccess.h> ++#include <asm/unistd.h> ++ ++ ++#define CTL_VSERVER 4242 /* unused? */ ++ ++enum { ++ CTL_DEBUG_ERROR = 0, ++ CTL_DEBUG_SWITCH = 1, ++ CTL_DEBUG_XID, ++ CTL_DEBUG_NID, ++ CTL_DEBUG_NET, ++ CTL_DEBUG_LIMIT, ++ CTL_DEBUG_DLIM, ++ CTL_DEBUG_CVIRT, ++ CTL_DEBUG_MISC, ++}; ++ ++ ++unsigned int vx_debug_switch = 0; ++unsigned int vx_debug_xid = 0; ++unsigned int vx_debug_nid = 0; ++unsigned int vx_debug_net = 0; ++unsigned int vx_debug_limit = 0; ++unsigned int vx_debug_dlim = 0; ++unsigned int vx_debug_cvirt = 0; ++unsigned int vx_debug_misc = 0; ++ ++ ++static struct ctl_table_header *vserver_table_header; ++static ctl_table vserver_table[]; ++ ++ ++void vserver_register_sysctl(void) ++{ ++ if (!vserver_table_header) { ++ vserver_table_header = register_sysctl_table(vserver_table, 1); ++ } ++ ++} ++ ++void vserver_unregister_sysctl(void) ++{ ++ if (vserver_table_header) { ++ unregister_sysctl_table(vserver_table_header); ++ vserver_table_header = NULL; ++ } ++} ++ ++ ++static int proc_dodebug(ctl_table *table, int write, ++ struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos) ++{ ++ char tmpbuf[20], *p, c; ++ unsigned int value; ++ size_t left, len; ++ ++ if ((*ppos && !write) || !*lenp) { ++ *lenp = 0; ++ return 0; ++ } ++ ++ left = *lenp; ++ ++ if (write) { ++ if (!access_ok(VERIFY_READ, buffer, left)) ++ return -EFAULT; ++ p = (char *) buffer; ++ while (left && __get_user(c, p) >= 0 && isspace(c)) ++ left--, p++; ++ if (!left) ++ goto done; ++ ++ if (left > sizeof(tmpbuf) - 1) ++ return -EINVAL; ++ if (copy_from_user(tmpbuf, p, left)) ++ return -EFAULT; ++ tmpbuf[left] = '\0'; ++ ++ for (p = tmpbuf, value = 0; '0' <= *p && *p <= '9'; p++, left--) ++ value = 10 * value + (*p - '0'); ++ if (*p && !isspace(*p)) ++ return -EINVAL; ++ while (left && isspace(*p)) ++ left--, p++; ++ *(unsigned int *) table->data = value; ++ } else { ++ if (!access_ok(VERIFY_WRITE, buffer, left)) ++ return -EFAULT; ++ len = sprintf(tmpbuf, "%d", *(unsigned int *) table->data); ++ if (len > left) ++ len = left; ++ if (__copy_to_user(buffer, tmpbuf, len)) ++ return -EFAULT; ++ if ((left -= len) > 0) { ++ if (put_user('\n', (char *)buffer + len)) ++ return -EFAULT; ++ left--; ++ } ++ } ++ ++done: ++ *lenp -= left; ++ *ppos += *lenp; ++ return 0; ++} ++ ++ ++ ++static ctl_table debug_table[] = { ++ { ++ .ctl_name = CTL_DEBUG_SWITCH, ++ .procname = "debug_switch", ++ .data = &vx_debug_switch, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dodebug ++ }, ++ { ++ .ctl_name = CTL_DEBUG_XID, ++ .procname = "debug_xid", ++ .data = &vx_debug_xid, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dodebug ++ }, ++ { ++ .ctl_name = CTL_DEBUG_NID, ++ .procname = "debug_nid", ++ .data = &vx_debug_nid, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dodebug ++ }, ++ { ++ .ctl_name = CTL_DEBUG_NET, ++ .procname = "debug_net", ++ .data = &vx_debug_net, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dodebug ++ }, ++ { ++ .ctl_name = CTL_DEBUG_LIMIT, ++ .procname = "debug_limit", ++ .data = &vx_debug_limit, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dodebug ++ }, ++ { ++ .ctl_name = CTL_DEBUG_DLIM, ++ .procname = "debug_dlim", ++ .data = &vx_debug_dlim, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dodebug ++ }, ++ { ++ .ctl_name = CTL_DEBUG_CVIRT, ++ .procname = "debug_cvirt", ++ .data = &vx_debug_cvirt, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dodebug ++ }, ++ { ++ .ctl_name = CTL_DEBUG_MISC, ++ .procname = "debug_misc", ++ .data = &vx_debug_misc, ++ .maxlen = sizeof(int), ++ .mode = 0644, ++ .proc_handler = &proc_dodebug ++ }, ++ { .ctl_name = 0 } ++}; ++ ++static ctl_table vserver_table[] = { ++ { ++ .ctl_name = CTL_VSERVER, ++ .procname = "vserver", ++ .mode = 0555, ++ .child = debug_table ++ }, ++ { .ctl_name = 0 } ++}; ++ ++ ++EXPORT_SYMBOL_GPL(vx_debug_switch); ++EXPORT_SYMBOL_GPL(vx_debug_xid); ++EXPORT_SYMBOL_GPL(vx_debug_nid); ++EXPORT_SYMBOL_GPL(vx_debug_net); ++EXPORT_SYMBOL_GPL(vx_debug_limit); ++EXPORT_SYMBOL_GPL(vx_debug_dlim); ++EXPORT_SYMBOL_GPL(vx_debug_cvirt); ++EXPORT_SYMBOL_GPL(vx_debug_misc); ++ +Index: vserver-sources-2.0.2_2.6.15.4/kernel/vserver/vci_config.h +=================================================================== +--- /dev/null ++++ vserver-sources-2.0.2_2.6.15.4/kernel/vserver/vci_config.h +@@ -0,0 +1,76 @@ ++ ++#include <linux/config.h> ++ ++ ++#include <linux/config.h> ++ ++ ++enum { ++ VCI_KCBIT_LEGACY = 1, ++ VCI_KCBIT_LEGACYNET, ++ VCI_KCBIT_NGNET, ++ ++ VCI_KCBIT_PROC_SECURE, ++ VCI_KCBIT_HARDCPU, ++ VCI_KCBIT_HARDCPU_IDLE, ++ ++ VCI_KCBIT_LEGACY_VERSION, ++ ++ VCI_KCBIT_DEBUG = 16, ++ VCI_KCBIT_HISTORY = 20, ++ VCI_KCBIT_TAGXID = 24, ++}; ++ ++ ++static inline uint32_t vci_kernel_config(void) ++{ ++ return ++ /* various legacy options */ ++#ifdef CONFIG_VSERVER_LEGACY ++ (1 << VCI_KCBIT_LEGACY) | ++#endif ++#ifdef CONFIG_VSERVER_LEGACYNET ++ (1 << VCI_KCBIT_LEGACYNET) | ++#endif ++#ifdef CONFIG_VSERVER_LEGACY_VERSION ++ (1 << VCI_KCBIT_LEGACY_VERSION) | ++#endif ++ ++ /* configured features */ ++#ifdef CONFIG_VSERVER_PROC_SECURE ++ (1 << VCI_KCBIT_PROC_SECURE) | ++#endif ++#ifdef CONFIG_VSERVER_HARDCPU ++ (1 << VCI_KCBIT_HARDCPU) | ++#endif ++#ifdef CONFIG_VSERVER_HARDCPU_IDLE ++ (1 << VCI_KCBIT_HARDCPU_IDLE) | ++#endif ++ ++ /* debug options */ ++#ifdef CONFIG_VSERVER_DEBUG ++ (1 << VCI_KCBIT_DEBUG) | ++#endif ++#ifdef CONFIG_VSERVER_HISTORY ++ (1 << VCI_KCBIT_HISTORY) | ++#endif ++ ++ /* inode xid tagging */ ++#if defined(CONFIG_INOXID_NONE) ++ (0 << VCI_KCBIT_TAGXID) | ++#elif defined(CONFIG_INOXID_UID16) ++ (1 << VCI_KCBIT_TAGXID) | ++#elif defined(CONFIG_INOXID_GID16) ++ (2 << VCI_KCBIT_TAGXID) | ++#elif defined(CONFIG_INOXID_UGID24) ++ (3 << VCI_KCBIT_TAGXID) | ++#elif defined(CONFIG_INOXID_INTERN) ++ (4 << VCI_KCBIT_TAGXID) | ++#elif defined(CONFIG_INOXID_RUNTIME) ++ (5 << VCI_KCBIT_TAGXID) | ++#else ++ (7 << VCI_KCBIT_TAGXID) | ++#endif ++ 0; ++} ++ +Index: vserver-sources-2.0.2_2.6.15.4/mm/filemap_xip.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/filemap_xip.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/filemap_xip.c +@@ -13,6 +13,7 @@ + #include <linux/module.h> + #include <linux/uio.h> + #include <linux/rmap.h> ++#include <linux/vs_memory.h> + #include <asm/tlbflush.h> + #include "filemap.h" + +Index: vserver-sources-2.0.2_2.6.15.4/mm/fremap.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/fremap.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/fremap.c +@@ -15,6 +15,7 @@ + #include <linux/rmap.h> + #include <linux/module.h> + #include <linux/syscalls.h> ++#include <linux/vs_memory.h> + + #include <asm/mmu_context.h> + #include <asm/cacheflush.h> +@@ -35,6 +36,7 @@ static int zap_pte(struct mm_struct *mm, + set_page_dirty(page); + page_remove_rmap(page); + page_cache_release(page); ++ // dec_mm_counter(mm, file_rss); + } + } else { + if (!pte_file(pte)) +@@ -74,6 +76,8 @@ int install_page(struct mm_struct *mm, s + err = -ENOMEM; + if (page_mapcount(page) > INT_MAX/2) + goto unlock; ++ if (!vx_rsspages_avail(mm, 1)) ++ goto unlock; + + if (pte_none(*pte) || !zap_pte(mm, vma, addr, pte)) + inc_mm_counter(mm, file_rss); +Index: vserver-sources-2.0.2_2.6.15.4/mm/hugetlb.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/hugetlb.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/hugetlb.c +@@ -15,6 +15,7 @@ + #include <asm/pgtable.h> + + #include <linux/hugetlb.h> ++#include <linux/vs_memory.h> + + const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL; + static unsigned long nr_huge_pages, free_huge_pages; +Index: vserver-sources-2.0.2_2.6.15.4/mm/memory.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/memory.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/memory.c +@@ -1870,6 +1870,10 @@ static int do_swap_page(struct mm_struct + grab_swap_token(); + } + ++ if (!vx_rsspages_avail(mm, 1)) { ++ ret = VM_FAULT_OOM; ++ goto out; ++ } + mark_page_accessed(page); + lock_page(page); + +@@ -1941,6 +1945,8 @@ static int do_anonymous_page(struct mm_s + /* Allocate our own private page. */ + pte_unmap(page_table); + ++ if (!vx_rsspages_avail(mm, 1)) ++ goto oom; + if (unlikely(anon_vma_prepare(vma))) + goto oom; + page = alloc_zeroed_user_highpage(vma, address); +@@ -2020,6 +2026,9 @@ static int do_no_page(struct mm_struct * + smp_rmb(); /* serializes i_size against truncate_count */ + } + retry: ++ /* FIXME: is that check useful here? */ ++ if (!vx_rsspages_avail(mm, 1)) ++ return VM_FAULT_OOM; + new_page = vma->vm_ops->nopage(vma, address & PAGE_MASK, &ret); + /* + * No smp_rmb is needed here as long as there's a full +Index: vserver-sources-2.0.2_2.6.15.4/mm/mempolicy.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/mempolicy.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/mempolicy.c +@@ -83,6 +83,7 @@ + #include <linux/init.h> + #include <linux/compat.h> + #include <linux/mempolicy.h> ++#include <linux/vs_cvirt.h> + #include <asm/tlbflush.h> + #include <asm/uaccess.h> + +Index: vserver-sources-2.0.2_2.6.15.4/mm/mlock.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/mlock.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/mlock.c +@@ -9,6 +9,7 @@ + #include <linux/mm.h> + #include <linux/mempolicy.h> + #include <linux/syscalls.h> ++#include <linux/vs_memory.h> + + + static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev, +@@ -64,7 +65,7 @@ success: + ret = make_pages_present(start, end); + } + +- vma->vm_mm->locked_vm -= pages; ++ vx_vmlocked_sub(vma->vm_mm, pages); + out: + if (ret == -ENOMEM) + ret = -EAGAIN; +@@ -122,7 +123,7 @@ static int do_mlock(unsigned long start, + + asmlinkage long sys_mlock(unsigned long start, size_t len) + { +- unsigned long locked; ++ unsigned long locked, grow; + unsigned long lock_limit; + int error = -ENOMEM; + +@@ -133,8 +134,10 @@ asmlinkage long sys_mlock(unsigned long + len = PAGE_ALIGN(len + (start & ~PAGE_MASK)); + start &= PAGE_MASK; + +- locked = len >> PAGE_SHIFT; +- locked += current->mm->locked_vm; ++ grow = len >> PAGE_SHIFT; ++ if (!vx_vmlocked_avail(current->mm, grow)) ++ goto out; ++ locked = current->mm->locked_vm + grow; + + lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur; + lock_limit >>= PAGE_SHIFT; +@@ -142,6 +145,7 @@ asmlinkage long sys_mlock(unsigned long + /* check against resource limits */ + if ((locked <= lock_limit) || capable(CAP_IPC_LOCK)) + error = do_mlock(start, len, 1); ++out: + up_write(¤t->mm->mmap_sem); + return error; + } +@@ -201,6 +205,8 @@ asmlinkage long sys_mlockall(int flags) + lock_limit >>= PAGE_SHIFT; + + ret = -ENOMEM; ++ if (!vx_vmlocked_avail(current->mm, current->mm->total_vm)) ++ goto out; + if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) || + capable(CAP_IPC_LOCK)) + ret = do_mlockall(flags); +Index: vserver-sources-2.0.2_2.6.15.4/mm/mmap.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/mmap.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/mmap.c +@@ -1115,10 +1115,10 @@ munmap_back: + kmem_cache_free(vm_area_cachep, vma); + } + out: +- mm->total_vm += len >> PAGE_SHIFT; ++ vx_vmpages_add(mm, len >> PAGE_SHIFT); + vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT); + if (vm_flags & VM_LOCKED) { +- mm->locked_vm += len >> PAGE_SHIFT; ++ vx_vmlocked_add(mm, len >> PAGE_SHIFT); + make_pages_present(addr, addr + len); + } + if (flags & MAP_POPULATE) { +@@ -1478,9 +1478,9 @@ static int acct_stack_growth(struct vm_a + return -ENOMEM; + + /* Ok, everything looks good - let it rip */ +- mm->total_vm += grow; ++ vx_vmpages_add(mm, grow); + if (vma->vm_flags & VM_LOCKED) +- mm->locked_vm += grow; ++ vx_vmlocked_add(mm, grow); + vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow); + return 0; + } +@@ -1633,9 +1633,9 @@ static void remove_vma_list(struct mm_st + do { + long nrpages = vma_pages(vma); + +- mm->total_vm -= nrpages; ++ vx_vmpages_sub(mm, nrpages); + if (vma->vm_flags & VM_LOCKED) +- mm->locked_vm -= nrpages; ++ vx_vmlocked_sub(mm, nrpages); + vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages); + vma = remove_vma(vma); + } while (vma); +@@ -1864,6 +1864,8 @@ unsigned long do_brk(unsigned long addr, + lock_limit >>= PAGE_SHIFT; + if (locked > lock_limit && !capable(CAP_IPC_LOCK)) + return -EAGAIN; ++ if (!vx_vmlocked_avail(mm, len >> PAGE_SHIFT)) ++ return -ENOMEM; + } + + /* +@@ -1890,7 +1892,8 @@ unsigned long do_brk(unsigned long addr, + if (mm->map_count > sysctl_max_map_count) + return -ENOMEM; + +- if (security_vm_enough_memory(len >> PAGE_SHIFT)) ++ if (security_vm_enough_memory(len >> PAGE_SHIFT) || ++ !vx_vmpages_avail(mm, len >> PAGE_SHIFT)) + return -ENOMEM; + + flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags; +@@ -1918,9 +1921,9 @@ unsigned long do_brk(unsigned long addr, + vma->vm_page_prot = protection_map[flags & 0x0f]; + vma_link(mm, vma, prev, rb_link, rb_parent); + out: +- mm->total_vm += len >> PAGE_SHIFT; ++ vx_vmpages_add(mm, len >> PAGE_SHIFT); + if (flags & VM_LOCKED) { +- mm->locked_vm += len >> PAGE_SHIFT; ++ vx_vmlocked_add(mm, len >> PAGE_SHIFT); + make_pages_present(addr, addr + len); + } + return addr; +@@ -1946,6 +1949,11 @@ void exit_mmap(struct mm_struct *mm) + free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0); + tlb_finish_mmu(tlb, 0, end); + ++ set_mm_counter(mm, file_rss, 0); ++ set_mm_counter(mm, anon_rss, 0); ++ vx_vmpages_sub(mm, mm->total_vm); ++ vx_vmlocked_sub(mm, mm->locked_vm); ++ + /* + * Walk the list again, actually closing and freeing it, + * with preemption enabled, without holding any MM locks. +@@ -1985,7 +1993,8 @@ int insert_vm_struct(struct mm_struct * + if (__vma && __vma->vm_start < vma->vm_end) + return -ENOMEM; + if ((vma->vm_flags & VM_ACCOUNT) && +- security_vm_enough_memory(vma_pages(vma))) ++ (security_vm_enough_memory(vma_pages(vma)) || ++ !vx_vmpages_avail(mm, vma_pages(vma)))) + return -ENOMEM; + vma_link(mm, vma, prev, rb_link, rb_parent); + return 0; +@@ -2059,5 +2068,7 @@ int may_expand_vm(struct mm_struct *mm, + + if (cur + npages > lim) + return 0; ++ if (!vx_vmpages_avail(mm, npages)) ++ return 0; + return 1; + } +Index: vserver-sources-2.0.2_2.6.15.4/mm/mremap.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/mremap.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/mremap.c +@@ -17,6 +17,7 @@ + #include <linux/highmem.h> + #include <linux/security.h> + #include <linux/syscalls.h> ++#include <linux/vs_memory.h> + + #include <asm/uaccess.h> + #include <asm/cacheflush.h> +@@ -210,7 +211,7 @@ static unsigned long move_vma(struct vm_ + * If this were a serious issue, we'd add a flag to do_munmap(). + */ + hiwater_vm = mm->hiwater_vm; +- mm->total_vm += new_len >> PAGE_SHIFT; ++ vx_vmpages_add(mm, new_len >> PAGE_SHIFT); + vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT); + + if (do_munmap(mm, old_addr, old_len) < 0) { +@@ -228,7 +229,7 @@ static unsigned long move_vma(struct vm_ + } + + if (vm_flags & VM_LOCKED) { +- mm->locked_vm += new_len >> PAGE_SHIFT; ++ vx_vmlocked_add(mm, new_len >> PAGE_SHIFT); + if (new_len > old_len) + make_pages_present(new_addr + old_len, + new_addr + new_len); +@@ -335,6 +336,9 @@ unsigned long do_mremap(unsigned long ad + ret = -EAGAIN; + if (locked > lock_limit && !capable(CAP_IPC_LOCK)) + goto out; ++ if (!vx_vmlocked_avail(current->mm, ++ (new_len - old_len) >> PAGE_SHIFT)) ++ goto out; + } + if (!may_expand_vm(mm, (new_len - old_len) >> PAGE_SHIFT)) { + ret = -ENOMEM; +@@ -363,10 +367,10 @@ unsigned long do_mremap(unsigned long ad + vma_adjust(vma, vma->vm_start, + addr + new_len, vma->vm_pgoff, NULL); + +- mm->total_vm += pages; ++ vx_vmpages_add(mm, pages); + vm_stat_account(mm, vma->vm_flags, vma->vm_file, pages); + if (vma->vm_flags & VM_LOCKED) { +- mm->locked_vm += pages; ++ vx_vmlocked_add(mm, pages); + make_pages_present(addr + old_len, + addr + new_len); + } +Index: vserver-sources-2.0.2_2.6.15.4/mm/nommu.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/nommu.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/nommu.c +@@ -812,7 +812,7 @@ unsigned long do_mmap_pgoff(struct file + realalloc += kobjsize(vma); + askedalloc += sizeof(*vma); + +- current->mm->total_vm += len >> PAGE_SHIFT; ++ vx_vmpages_add(current->mm, len >> PAGE_SHIFT); + + add_nommu_vma(vma); + +@@ -929,7 +929,7 @@ int do_munmap(struct mm_struct *mm, unsi + kfree(vml); + + update_hiwater_vm(mm); +- mm->total_vm -= len >> PAGE_SHIFT; ++ vx_vmpages_sub(mm, len >> PAGE_SHIFT); + + #ifdef DEBUG + show_process_blocks(); +@@ -948,7 +948,7 @@ void exit_mmap(struct mm_struct * mm) + printk("Exit_mmap:\n"); + #endif + +- mm->total_vm = 0; ++ vx_vmpages_sub(mm, mm->total_vm); + + while ((tmp = mm->context.vmlist)) { + mm->context.vmlist = tmp->next; +Index: vserver-sources-2.0.2_2.6.15.4/mm/oom_kill.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/oom_kill.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/oom_kill.c +@@ -55,6 +55,7 @@ unsigned long badness(struct task_struct + * The memory size of the process is the basis for the badness. + */ + points = p->mm->total_vm; ++ /* FIXME: add vserver badness ;) */ + + /* + * Processes which fork a lot of child processes are likely +Index: vserver-sources-2.0.2_2.6.15.4/mm/page_alloc.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/page_alloc.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/page_alloc.c +@@ -36,6 +36,7 @@ + #include <linux/memory_hotplug.h> + #include <linux/nodemask.h> + #include <linux/vmalloc.h> ++#include <linux/vs_limit.h> + + #include <asm/tlbflush.h> + #include "internal.h" +@@ -1298,6 +1299,8 @@ void si_meminfo(struct sysinfo *val) + val->freehigh = 0; + #endif + val->mem_unit = PAGE_SIZE; ++ if (vx_flags(VXF_VIRT_MEM, 0)) ++ vx_vsi_meminfo(val); + } + + EXPORT_SYMBOL(si_meminfo); +Index: vserver-sources-2.0.2_2.6.15.4/mm/rmap.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/rmap.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/rmap.c +@@ -52,6 +52,7 @@ + #include <linux/init.h> + #include <linux/rmap.h> + #include <linux/rcupdate.h> ++#include <linux/vs_memory.h> + + #include <asm/tlbflush.h> + +Index: vserver-sources-2.0.2_2.6.15.4/mm/shmem.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/shmem.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/shmem.c +@@ -50,7 +50,6 @@ + #include <asm/pgtable.h> + + /* This magic number is used in glibc for posix shared memory */ +-#define TMPFS_MAGIC 0x01021994 + + #define ENTRIES_PER_PAGE (PAGE_CACHE_SIZE/sizeof(unsigned long)) + #define ENTRIES_PER_PAGEPAGE (ENTRIES_PER_PAGE*ENTRIES_PER_PAGE) +@@ -1580,7 +1579,7 @@ static int shmem_statfs(struct super_blo + { + struct shmem_sb_info *sbinfo = SHMEM_SB(sb); + +- buf->f_type = TMPFS_MAGIC; ++ buf->f_type = TMPFS_SUPER_MAGIC; + buf->f_bsize = PAGE_CACHE_SIZE; + buf->f_namelen = NAME_MAX; + spin_lock(&sbinfo->stat_lock); +@@ -1993,7 +1992,7 @@ static int shmem_fill_super(struct super + sb->s_maxbytes = SHMEM_MAX_BYTES; + sb->s_blocksize = PAGE_CACHE_SIZE; + sb->s_blocksize_bits = PAGE_CACHE_SHIFT; +- sb->s_magic = TMPFS_MAGIC; ++ sb->s_magic = TMPFS_SUPER_MAGIC; + sb->s_op = &shmem_ops; + + inode = shmem_get_inode(sb, S_IFDIR | mode, 0); +Index: vserver-sources-2.0.2_2.6.15.4/mm/swapfile.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/swapfile.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/swapfile.c +@@ -30,6 +30,7 @@ + #include <asm/pgtable.h> + #include <asm/tlbflush.h> + #include <linux/swapops.h> ++#include <linux/vs_memory.h> + + DEFINE_SPINLOCK(swap_lock); + unsigned int nr_swapfiles; +@@ -1596,6 +1597,8 @@ void si_swapinfo(struct sysinfo *val) + val->freeswap = nr_swap_pages + nr_to_be_unused; + val->totalswap = total_swap_pages + nr_to_be_unused; + spin_unlock(&swap_lock); ++ if (vx_flags(VXF_VIRT_MEM, 0)) ++ vx_vsi_swapinfo(val); + } + + /* +Index: vserver-sources-2.0.2_2.6.15.4/mm/vmscan.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/mm/vmscan.c ++++ vserver-sources-2.0.2_2.6.15.4/mm/vmscan.c +@@ -1346,7 +1346,7 @@ static int __init kswapd_init(void) + swap_setup(); + for_each_pgdat(pgdat) + pgdat->kswapd +- = find_task_by_pid(kernel_thread(kswapd, pgdat, CLONE_KERNEL)); ++ = find_task_by_real_pid(kernel_thread(kswapd, pgdat, CLONE_KERNEL)); + total_memory = nr_free_pagecache_pages(); + hotcpu_notifier(cpu_callback, 0); + return 0; +Index: vserver-sources-2.0.2_2.6.15.4/net/core/dev.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/core/dev.c ++++ vserver-sources-2.0.2_2.6.15.4/net/core/dev.c +@@ -113,6 +113,7 @@ + #include <linux/wireless.h> /* Note : will define WIRELESS_EXT */ + #include <net/iw_handler.h> + #endif /* CONFIG_NET_RADIO */ ++#include <linux/vs_network.h> + #include <asm/current.h> + + /* +@@ -1850,6 +1851,9 @@ static int dev_ifconf(char __user *arg) + + total = 0; + for (dev = dev_base; dev; dev = dev->next) { ++ if (vx_flags(VXF_HIDE_NETIF, 0) && ++ !dev_in_nx_info(dev, current->nx_info)) ++ continue; + for (i = 0; i < NPROTO; i++) { + if (gifconf_list[i]) { + int done; +@@ -1910,6 +1914,10 @@ void dev_seq_stop(struct seq_file *seq, + + static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev) + { ++ struct nx_info *nxi = current->nx_info; ++ ++ if (vx_flags(VXF_HIDE_NETIF, 0) && !dev_in_nx_info(dev, nxi)) ++ return; + if (dev->get_stats) { + struct net_device_stats *stats = dev->get_stats(dev); + +Index: vserver-sources-2.0.2_2.6.15.4/net/core/rtnetlink.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/core/rtnetlink.c ++++ vserver-sources-2.0.2_2.6.15.4/net/core/rtnetlink.c +@@ -278,6 +278,9 @@ static int rtnetlink_dump_ifinfo(struct + for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) { + if (idx < s_idx) + continue; ++ if (vx_info_flags(skb->sk->sk_vx_info, VXF_HIDE_NETIF, 0) && ++ !dev_in_nx_info(dev, skb->sk->sk_nx_info)) ++ continue; + if (rtnetlink_fill_ifinfo(skb, dev, RTM_NEWLINK, + NETLINK_CB(cb->skb).pid, + cb->nlh->nlmsg_seq, 0, +@@ -451,6 +454,9 @@ void rtmsg_ifinfo(int type, struct net_d + sizeof(struct rtnl_link_ifmap) + + sizeof(struct rtnl_link_stats) + 128); + ++ if (vx_flags(VXF_HIDE_NETIF, 0) && ++ !dev_in_nx_info(dev, current->nx_info)) ++ return; + skb = alloc_skb(size, GFP_KERNEL); + if (!skb) + return; +Index: vserver-sources-2.0.2_2.6.15.4/net/core/sock.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/core/sock.c ++++ vserver-sources-2.0.2_2.6.15.4/net/core/sock.c +@@ -124,6 +124,9 @@ + #include <linux/ipsec.h> + + #include <linux/filter.h> ++#include <linux/vs_socket.h> ++#include <linux/vs_limit.h> ++#include <linux/vs_context.h> + + #ifdef CONFIG_INET + #include <net/tcp.h> +@@ -659,6 +662,8 @@ struct sock *sk_alloc(int family, gfp_t + sk->sk_prot = sk->sk_prot_creator = prot; + sock_lock_init(sk); + } ++ sock_vx_init(sk); ++ sock_nx_init(sk); + + if (security_sk_alloc(sk, family, priority)) + goto out_free; +@@ -697,6 +702,11 @@ void sk_free(struct sock *sk) + __FUNCTION__, atomic_read(&sk->sk_omem_alloc)); + + security_sk_free(sk); ++ vx_sock_dec(sk); ++ clr_vx_info(&sk->sk_vx_info); ++ sk->sk_xid = -1; ++ clr_nx_info(&sk->sk_nx_info); ++ sk->sk_nid = -1; + if (sk->sk_prot_creator->slab != NULL) + kmem_cache_free(sk->sk_prot_creator->slab, sk); + else +@@ -714,6 +724,8 @@ struct sock *sk_clone(const struct sock + memcpy(newsk, sk, sk->sk_prot->obj_size); + + /* SANITY */ ++ sock_vx_init(newsk); ++ sock_nx_init(newsk); + sk_node_init(&newsk->sk_node); + sock_lock_init(newsk); + bh_lock_sock(newsk); +@@ -754,6 +766,12 @@ struct sock *sk_clone(const struct sock + newsk->sk_priority = 0; + atomic_set(&newsk->sk_refcnt, 2); + ++ set_vx_info(&newsk->sk_vx_info, sk->sk_vx_info); ++ newsk->sk_xid = sk->sk_xid; ++ vx_sock_inc(newsk); ++ set_nx_info(&newsk->sk_nx_info, sk->sk_nx_info); ++ newsk->sk_nid = sk->sk_nid; ++ + /* + * Increment the counter in the same struct proto as the master + * sock (sk_refcnt_debug_inc uses newsk->sk_prot->socks, that +@@ -1318,6 +1336,11 @@ void sock_init_data(struct socket *sock, + sk->sk_stamp.tv_sec = -1L; + sk->sk_stamp.tv_usec = -1L; + ++ set_vx_info(&sk->sk_vx_info, current->vx_info); ++ sk->sk_xid = vx_current_xid(); ++ vx_sock_inc(sk); ++ set_nx_info(&sk->sk_nx_info, current->nx_info); ++ sk->sk_nid = nx_current_nid(); + atomic_set(&sk->sk_refcnt, 1); + } + +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/af_inet.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/af_inet.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/af_inet.c +@@ -112,6 +112,7 @@ + #ifdef CONFIG_IP_MROUTE + #include <linux/mroute.h> + #endif ++#include <linux/vs_limit.h> + + DEFINE_SNMP_STAT(struct linux_mib, net_statistics) __read_mostly; + +@@ -280,9 +281,11 @@ lookup_protocol: + } + + err = -EPERM; ++ if ((protocol == IPPROTO_ICMP) && vx_ccaps(VXC_RAW_ICMP)) ++ goto override; + if (answer->capability > 0 && !capable(answer->capability)) + goto out_rcu_unlock; +- ++override: + sock->ops = answer->ops; + answer_prot = answer->prot; + answer_no_check = answer->no_check; +@@ -398,6 +401,10 @@ int inet_bind(struct socket *sock, struc + unsigned short snum; + int chk_addr_ret; + int err; ++ __u32 s_addr; /* Address used for validation */ ++ __u32 s_addr1; /* Address used for socket */ ++ __u32 s_addr2; /* Broadcast address for the socket */ ++ struct nx_info *nxi = sk->sk_nx_info; + + /* If the socket has its own bind function then use it. (RAW) */ + if (sk->sk_prot->bind) { +@@ -408,7 +415,40 @@ int inet_bind(struct socket *sock, struc + if (addr_len < sizeof(struct sockaddr_in)) + goto out; + +- chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr); ++ s_addr = addr->sin_addr.s_addr; ++ s_addr1 = s_addr; ++ s_addr2 = 0xffffffffl; ++ ++ vxdprintk(VXD_CBIT(net, 3), ++ "inet_bind(%p)* %p,%p;%lx %d.%d.%d.%d", ++ sk, sk->sk_nx_info, sk->sk_socket, ++ (sk->sk_socket?sk->sk_socket->flags:0), ++ VXD_QUAD(s_addr)); ++ if (nxi) { ++ __u32 v4_bcast = nxi->v4_bcast; ++ __u32 ipv4root = nxi->ipv4[0]; ++ int nbipv4 = nxi->nbipv4; ++ ++ if (s_addr == 0) { ++ /* bind to any for 1-n */ ++ s_addr = ipv4root; ++ s_addr1 = (nbipv4 > 1) ? 0 : s_addr; ++ s_addr2 = v4_bcast; ++ } else if (s_addr == IPI_LOOPBACK) { ++ /* rewrite localhost to ipv4root */ ++ s_addr = ipv4root; ++ s_addr1 = ipv4root; ++ } else if (s_addr != v4_bcast) { ++ /* normal address bind */ ++ if (!addr_in_nx_info(nxi, s_addr)) ++ return -EADDRNOTAVAIL; ++ } ++ } ++ chk_addr_ret = inet_addr_type(s_addr); ++ ++ vxdprintk(VXD_CBIT(net, 3), ++ "inet_bind(%p) %d.%d.%d.%d, %d.%d.%d.%d, %d.%d.%d.%d", ++ sk, VXD_QUAD(s_addr), VXD_QUAD(s_addr1), VXD_QUAD(s_addr2)); + + /* Not specified by any standard per-se, however it breaks too + * many applications when removed. It is unfortunate since +@@ -420,7 +460,7 @@ int inet_bind(struct socket *sock, struc + err = -EADDRNOTAVAIL; + if (!sysctl_ip_nonlocal_bind && + !inet->freebind && +- addr->sin_addr.s_addr != INADDR_ANY && ++ s_addr != INADDR_ANY && + chk_addr_ret != RTN_LOCAL && + chk_addr_ret != RTN_MULTICAST && + chk_addr_ret != RTN_BROADCAST) +@@ -445,7 +485,8 @@ int inet_bind(struct socket *sock, struc + if (sk->sk_state != TCP_CLOSE || inet->num) + goto out_release_sock; + +- inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr; ++ inet->rcv_saddr = inet->saddr = s_addr1; ++ inet->rcv_saddr2 = s_addr2; + if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST) + inet->saddr = 0; /* Use device */ + +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/devinet.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/devinet.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/devinet.c +@@ -527,6 +527,33 @@ static __inline__ int inet_abc_len(u32 a + return rc; + } + ++/* ++ Check that a device is not member of the ipv4root assigned to the process ++ Return true if this is the case ++ ++ If the process is not bound to specific IP, then it returns 0 (all ++ interface are fine). ++*/ ++static inline int devinet_notiproot (struct in_ifaddr *ifa) ++{ ++ int ret = 0; ++ struct nx_info *nxi; ++ ++ if ((nxi = current->nx_info)) { ++ int i; ++ int nbip = nxi->nbipv4; ++ __u32 addr = ifa->ifa_local; ++ ret = 1; ++ for (i=0; i<nbip; i++) { ++ if(nxi->ipv4[i] == addr) { ++ ret = 0; ++ break; ++ } ++ } ++ } ++ return ret; ++} ++ + + int devinet_ioctl(unsigned int cmd, void __user *arg) + { +@@ -634,6 +661,9 @@ int devinet_ioctl(unsigned int cmd, void + ret = -EADDRNOTAVAIL; + if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS) + goto done; ++ if (vx_flags(VXF_HIDE_NETIF, 0) && ++ !ifa_in_nx_info(ifa, current->nx_info)) ++ goto done; + + switch(cmd) { + case SIOCGIFADDR: /* Get interface address */ +@@ -778,6 +808,9 @@ static int inet_gifconf(struct net_devic + goto out; + + for (; ifa; ifa = ifa->ifa_next) { ++ if (vx_flags(VXF_HIDE_NETIF, 0) && ++ !ifa_in_nx_info(ifa, current->nx_info)) ++ continue; + if (!buf) { + done += sizeof(ifr); + continue; +@@ -1089,6 +1122,7 @@ static int inet_dump_ifaddr(struct sk_bu + struct net_device *dev; + struct in_device *in_dev; + struct in_ifaddr *ifa; ++ struct sock *sk = skb->sk; + int s_ip_idx, s_idx = cb->args[0]; + + s_ip_idx = ip_idx = cb->args[1]; +@@ -1106,6 +1140,9 @@ static int inet_dump_ifaddr(struct sk_bu + + for (ifa = in_dev->ifa_list, ip_idx = 0; ifa; + ifa = ifa->ifa_next, ip_idx++) { ++ if (sk && vx_info_flags(sk->sk_vx_info, VXF_HIDE_NETIF, 0) && ++ !ifa_in_nx_info(ifa, sk->sk_nx_info)) ++ continue; + if (ip_idx < s_ip_idx) + continue; + if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid, +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/fib_hash.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/fib_hash.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/fib_hash.c +@@ -988,6 +988,8 @@ static unsigned fib_flag_trans(int type, + return flags; + } + ++extern int dev_in_nx_info(struct net_device *, struct nx_info *); ++ + /* + * This outputs /proc/net/route. + * +@@ -1018,7 +1020,8 @@ static int fib_seq_show(struct seq_file + prefix = f->fn_key; + mask = FZ_MASK(iter->zone); + flags = fib_flag_trans(fa->fa_type, mask, fi); +- if (fi) ++ if (fi && (!vx_flags(VXF_HIDE_NETIF, 0) || ++ dev_in_nx_info(fi->fib_dev, current->nx_info))) + snprintf(bf, sizeof(bf), + "%s\t%08X\t%08X\t%04X\t%d\t%u\t%d\t%08X\t%d\t%u\t%u", + fi->fib_dev ? fi->fib_dev->name : "*", prefix, +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/inet_connection_sock.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/inet_connection_sock.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/inet_connection_sock.c +@@ -39,7 +39,6 @@ int sysctl_local_port_range[2] = { 1024, + + static inline int inet_csk_bind_conflict(struct sock *sk, struct inet_bind_bucket *tb) + { +- const u32 sk_rcv_saddr = inet_rcv_saddr(sk); + struct sock *sk2; + struct hlist_node *node; + int reuse = sk->sk_reuse; +@@ -52,9 +51,8 @@ static inline int inet_csk_bind_conflict + sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) { + if (!reuse || !sk2->sk_reuse || + sk2->sk_state == TCP_LISTEN) { +- const u32 sk2_rcv_saddr = inet_rcv_saddr(sk2); +- if (!sk2_rcv_saddr || !sk_rcv_saddr || +- sk2_rcv_saddr == sk_rcv_saddr) ++ if (nx_addr_conflict(sk->sk_nx_info, ++ inet_rcv_saddr(sk), sk2)) + break; + } + } +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/inet_diag.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/inet_diag.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/inet_diag.c +@@ -616,6 +616,8 @@ static int inet_diag_dump(struct sk_buff + sk_for_each(sk, node, &hashinfo->listening_hash[i]) { + struct inet_sock *inet = inet_sk(sk); + ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (num < s_num) { + num++; + continue; +@@ -677,6 +679,8 @@ skip_listen_ht: + sk_for_each(sk, node, &head->chain) { + struct inet_sock *inet = inet_sk(sk); + ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (num < s_num) + goto next_normal; + if (!(r->idiag_states & (1 << sk->sk_state))) +@@ -699,6 +703,8 @@ next_normal: + &hashinfo->ehash[i + hashinfo->ehash_size].chain) { + struct inet_sock *inet = inet_sk(sk); + ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (num < s_num) + goto next_dying; + if (r->id.idiag_sport != inet->sport && +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/inet_hashtables.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/inet_hashtables.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/inet_hashtables.c +@@ -141,11 +141,10 @@ struct sock *__inet_lookup_listener(cons + const __u32 rcv_saddr = inet->rcv_saddr; + int score = sk->sk_family == PF_INET ? 1 : 0; + +- if (rcv_saddr) { +- if (rcv_saddr != daddr) +- continue; ++ if (inet_addr_match(sk->sk_nx_info, daddr, rcv_saddr)) + score += 2; +- } ++ else ++ continue; + if (sk->sk_bound_dev_if) { + if (sk->sk_bound_dev_if != dif) + continue; +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/raw.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/raw.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/raw.c +@@ -102,6 +102,27 @@ static void raw_v4_unhash(struct sock *s + write_unlock_bh(&raw_v4_lock); + } + ++ ++/* ++ * Check if a given address matches for a socket ++ * ++ * nxi: the socket's nx_info if any ++ * addr: to be verified address ++ * saddr/baddr: socket addresses ++ */ ++static inline int raw_addr_match ( ++ struct nx_info *nxi, ++ uint32_t addr, ++ uint32_t saddr, ++ uint32_t baddr) ++{ ++ if (addr && (saddr == addr || baddr == addr)) ++ return 1; ++ if (!saddr) ++ return addr_in_nx_info(nxi, addr); ++ return 0; ++} ++ + struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num, + unsigned long raddr, unsigned long laddr, + int dif) +@@ -113,7 +134,8 @@ struct sock *__raw_v4_lookup(struct sock + + if (inet->num == num && + !(inet->daddr && inet->daddr != raddr) && +- !(inet->rcv_saddr && inet->rcv_saddr != laddr) && ++ raw_addr_match(sk->sk_nx_info, laddr, ++ inet->rcv_saddr, inet->rcv_saddr2) && + !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)) + goto found; /* gotcha */ + } +@@ -311,6 +333,10 @@ static int raw_send_hdrinc(struct sock * + + iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); + } ++ err = -EPERM; ++ if (!vx_check(0, VX_ADMIN) && !capable(CAP_NET_RAW) ++ && (!addr_in_nx_info(sk->sk_nx_info, iph->saddr))) ++ goto error; + + err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev, + dst_output); +@@ -483,6 +509,12 @@ static int raw_sendmsg(struct kiocb *ioc + if (!inet->hdrincl) + raw_probe_proto_opt(&fl, msg); + ++ if (sk->sk_nx_info) { ++ err = ip_find_src(sk->sk_nx_info, &rt, &fl); ++ ++ if (err) ++ goto done; ++ } + err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT)); + } + if (err) +@@ -752,7 +784,8 @@ static struct sock *raw_get_first(struct + struct hlist_node *node; + + sk_for_each(sk, node, &raw_v4_htable[state->bucket]) +- if (sk->sk_family == PF_INET) ++ if (sk->sk_family == PF_INET && ++ vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) + goto found; + } + sk = NULL; +@@ -768,7 +801,8 @@ static struct sock *raw_get_next(struct + sk = sk_next(sk); + try_again: + ; +- } while (sk && sk->sk_family != PF_INET); ++ } while (sk && (sk->sk_family != PF_INET || ++ !vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))); + + if (!sk && ++state->bucket < RAWV4_HTABLE_SIZE) { + sk = sk_head(&raw_v4_htable[state->bucket]); +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/tcp_ipv4.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/tcp_ipv4.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/tcp_ipv4.c +@@ -76,6 +76,7 @@ + #include <linux/stddef.h> + #include <linux/proc_fs.h> + #include <linux/seq_file.h> ++#include <linux/vserver/debug.h> + + int sysctl_tcp_tw_reuse; + int sysctl_tcp_low_latency; +@@ -1516,6 +1517,12 @@ static void *listening_get_next(struct s + req = req->dl_next; + while (1) { + while (req) { ++ vxdprintk(VXD_CBIT(net, 6), ++ "sk,req: %p [#%d] (from %d)", req->sk, ++ (req->sk)?req->sk->sk_xid:0, vx_current_xid()); ++ if (req->sk && ++ !vx_check(req->sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (req->rsk_ops->family == st->family) { + cur = req; + goto out; +@@ -1540,6 +1547,10 @@ get_req: + } + get_sk: + sk_for_each_from(sk, node) { ++ vxdprintk(VXD_CBIT(net, 6), "sk: %p [#%d] (from %d)", ++ sk, sk->sk_xid, vx_current_xid()); ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (sk->sk_family == st->family) { + cur = sk; + goto out; +@@ -1591,18 +1602,26 @@ static void *established_get_first(struc + + read_lock(&tcp_hashinfo.ehash[st->bucket].lock); + sk_for_each(sk, node, &tcp_hashinfo.ehash[st->bucket].chain) { +- if (sk->sk_family != st->family) { ++ vxdprintk(VXD_CBIT(net, 6), ++ "sk,egf: %p [#%d] (from %d)", ++ sk, sk->sk_xid, vx_current_xid()); ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; ++ if (sk->sk_family != st->family) + continue; +- } + rc = sk; + goto out; + } + st->state = TCP_SEQ_STATE_TIME_WAIT; + inet_twsk_for_each(tw, node, + &tcp_hashinfo.ehash[st->bucket + tcp_hashinfo.ehash_size].chain) { +- if (tw->tw_family != st->family) { ++ vxdprintk(VXD_CBIT(net, 6), ++ "tw: %p [#%d] (from %d)", ++ tw, tw->tw_xid, vx_current_xid()); ++ if (!vx_check(tw->tw_xid, VX_IDENT|VX_WATCH)) ++ continue; ++ if (tw->tw_family != st->family) + continue; +- } + rc = tw; + goto out; + } +@@ -1626,7 +1645,8 @@ static void *established_get_next(struct + tw = cur; + tw = tw_next(tw); + get_tw: +- while (tw && tw->tw_family != st->family) { ++ while (tw && (tw->tw_family != st->family || ++ !vx_check(tw->tw_xid, VX_IDENT|VX_WATCH))) { + tw = tw_next(tw); + } + if (tw) { +@@ -1650,6 +1670,11 @@ get_tw: + sk = sk_next(sk); + + sk_for_each_from(sk, node) { ++ vxdprintk(VXD_CBIT(net, 6), ++ "sk,egn: %p [#%d] (from %d)", ++ sk, sk->sk_xid, vx_current_xid()); ++ if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (sk->sk_family == st->family) + goto found; + } +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/tcp_minisocks.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/tcp_minisocks.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/tcp_minisocks.c +@@ -29,6 +29,10 @@ + #include <net/inet_common.h> + #include <net/xfrm.h> + ++#include <linux/vs_limit.h> ++#include <linux/vs_socket.h> ++#include <linux/vs_context.h> ++ + #ifdef CONFIG_SYSCTL + #define SYNC_INIT 0 /* let the user enable it */ + #else +@@ -295,6 +299,11 @@ void tcp_time_wait(struct sock *sk, int + tcptw->tw_ts_recent = tp->rx_opt.ts_recent; + tcptw->tw_ts_recent_stamp = tp->rx_opt.ts_recent_stamp; + ++ tw->tw_xid = sk->sk_xid; ++ tw->tw_vx_info = NULL; ++ tw->tw_nid = sk->sk_nid; ++ tw->tw_nx_info = NULL; ++ + #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) + if (tw->tw_family == PF_INET6) { + struct ipv6_pinfo *np = inet6_sk(sk); +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv4/udp.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv4/udp.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv4/udp.c +@@ -175,14 +175,12 @@ gotit: + struct inet_sock *inet2 = inet_sk(sk2); + + if (inet2->num == snum && +- sk2 != sk && +- !ipv6_only_sock(sk2) && ++ sk2 != sk && !ipv6_only_sock(sk2) && + (!sk2->sk_bound_dev_if || + !sk->sk_bound_dev_if || + sk2->sk_bound_dev_if == sk->sk_bound_dev_if) && +- (!inet2->rcv_saddr || +- !inet->rcv_saddr || +- inet2->rcv_saddr == inet->rcv_saddr) && ++ nx_addr_conflict(sk->sk_nx_info, ++ inet_rcv_saddr(sk), sk2) && + (!sk2->sk_reuse || !sk->sk_reuse)) + goto fail; + } +@@ -217,6 +215,17 @@ static void udp_v4_unhash(struct sock *s + write_unlock_bh(&udp_hash_lock); + } + ++static inline int udp_in_list(struct nx_info *nx_info, u32 addr) ++{ ++ int n = nx_info->nbipv4; ++ int i; ++ ++ for (i=0; i<n; i++) ++ if (nx_info->ipv4[i] == addr) ++ return 1; ++ return 0; ++} ++ + /* UDP is nearly always wildcards out the wazoo, it makes no sense to try + * harder than this. -DaveM + */ +@@ -237,6 +246,11 @@ static struct sock *udp_v4_lookup_longwa + if (inet->rcv_saddr != daddr) + continue; + score+=2; ++ } else if (sk->sk_nx_info) { ++ if (udp_in_list(sk->sk_nx_info, daddr)) ++ score+=2; ++ else ++ continue; + } + if (inet->daddr) { + if (inet->daddr != saddr) +@@ -293,7 +307,8 @@ static inline struct sock *udp_v4_mcast_ + if (inet->num != hnum || + (inet->daddr && inet->daddr != rmt_addr) || + (inet->dport != rmt_port && inet->dport) || +- (inet->rcv_saddr && inet->rcv_saddr != loc_addr) || ++ (inet->rcv_saddr && inet->rcv_saddr != loc_addr && ++ inet->rcv_saddr2 && inet->rcv_saddr2 != loc_addr) || + ipv6_only_sock(s) || + (s->sk_bound_dev_if && s->sk_bound_dev_if != dif)) + continue; +@@ -603,6 +618,15 @@ int udp_sendmsg(struct kiocb *iocb, stru + .uli_u = { .ports = + { .sport = inet->sport, + .dport = dport } } }; ++ struct nx_info *nxi = sk->sk_nx_info; ++ ++ if (nxi) { ++ err = ip_find_src(nxi, &rt, &fl); ++ if (err) ++ goto out; ++ if (daddr == IPI_LOOPBACK && !vx_check(0, VX_ADMIN)) ++ daddr = fl.fl4_dst = nxi->ipv4[0]; ++ } + err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT)); + if (err) + goto out; +@@ -1382,8 +1406,10 @@ static struct sock *udp_get_first(struct + + for (state->bucket = 0; state->bucket < UDP_HTABLE_SIZE; ++state->bucket) { + struct hlist_node *node; ++ + sk_for_each(sk, node, &udp_hash[state->bucket]) { +- if (sk->sk_family == state->family) ++ if (sk->sk_family == state->family && ++ vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)) + goto found; + } + } +@@ -1400,7 +1426,8 @@ static struct sock *udp_get_next(struct + sk = sk_next(sk); + try_again: + ; +- } while (sk && sk->sk_family != state->family); ++ } while (sk && (sk->sk_family != state->family || ++ !vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))); + + if (!sk && ++state->bucket < UDP_HTABLE_SIZE) { + sk = sk_head(&udp_hash[state->bucket]); +Index: vserver-sources-2.0.2_2.6.15.4/net/ipv6/addrconf.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/ipv6/addrconf.c ++++ vserver-sources-2.0.2_2.6.15.4/net/ipv6/addrconf.c +@@ -2642,7 +2642,10 @@ static void if6_seq_stop(struct seq_file + static int if6_seq_show(struct seq_file *seq, void *v) + { + struct inet6_ifaddr *ifp = (struct inet6_ifaddr *)v; +- seq_printf(seq, ++ ++ /* no ipv6 inside a vserver for now */ ++ if (vx_check(0, VX_ADMIN|VX_WATCH)) ++ seq_printf(seq, + "%04x%04x%04x%04x%04x%04x%04x%04x %02x %02x %02x %02x %8s\n", + NIP6(ifp->addr), + ifp->idev->dev->ifindex, +@@ -2998,6 +3001,10 @@ static int inet6_dump_addr(struct sk_buf + struct ifmcaddr6 *ifmca; + struct ifacaddr6 *ifaca; + ++ /* no ipv6 inside a vserver for now */ ++ if (skb->sk && skb->sk->sk_vx_info) ++ return skb->len; ++ + s_idx = cb->args[0]; + s_ip_idx = ip_idx = cb->args[1]; + read_lock(&dev_base_lock); +@@ -3203,6 +3210,10 @@ static int inet6_dump_ifinfo(struct sk_b + struct net_device *dev; + struct inet6_dev *idev; + ++ /* no ipv6 inside a vserver for now */ ++ if (skb->sk && skb->sk->sk_vx_info) ++ return skb->len; ++ + read_lock(&dev_base_lock); + for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) { + if (idx < s_idx) +Index: vserver-sources-2.0.2_2.6.15.4/net/netlink/af_netlink.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/netlink/af_netlink.c ++++ vserver-sources-2.0.2_2.6.15.4/net/netlink/af_netlink.c +@@ -55,6 +55,9 @@ + #include <linux/mm.h> + #include <linux/types.h> + #include <linux/audit.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_limit.h> + + #include <net/sock.h> + #include <net/scm.h> +Index: vserver-sources-2.0.2_2.6.15.4/net/socket.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/socket.c ++++ vserver-sources-2.0.2_2.6.15.4/net/socket.c +@@ -96,6 +96,7 @@ + + #include <net/sock.h> + #include <linux/netfilter.h> ++#include <linux/vs_socket.h> + + static int sock_no_open(struct inode *irrelevant, struct file *dontcare); + static ssize_t sock_aio_read(struct kiocb *iocb, char __user *buf, +@@ -536,7 +537,7 @@ static inline int __sock_sendmsg(struct + struct msghdr *msg, size_t size) + { + struct sock_iocb *si = kiocb_to_siocb(iocb); +- int err; ++ int err, len; + + si->sock = sock; + si->scm = NULL; +@@ -547,7 +548,21 @@ static inline int __sock_sendmsg(struct + if (err) + return err; + +- return sock->ops->sendmsg(iocb, sock, msg, size); ++ len = sock->ops->sendmsg(iocb, sock, msg, size); ++ if (sock->sk) { ++ if (len == size) ++ vx_sock_send(sock->sk, size); ++ else ++ vx_sock_fail(sock->sk, size); ++ } ++ vxdprintk(VXD_CBIT(net, 7), ++ "__sock_sendmsg: %p[%p,%p,%p;%d]:%d/%d", ++ sock, sock->sk, ++ (sock->sk)?sock->sk->sk_nx_info:0, ++ (sock->sk)?sock->sk->sk_vx_info:0, ++ (sock->sk)?sock->sk->sk_xid:0, ++ (unsigned int)size, len); ++ return len; + } + + int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) +@@ -585,7 +600,7 @@ int kernel_sendmsg(struct socket *sock, + static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock, + struct msghdr *msg, size_t size, int flags) + { +- int err; ++ int err, len; + struct sock_iocb *si = kiocb_to_siocb(iocb); + + si->sock = sock; +@@ -598,7 +613,17 @@ static inline int __sock_recvmsg(struct + if (err) + return err; + +- return sock->ops->recvmsg(iocb, sock, msg, size, flags); ++ len = sock->ops->recvmsg(iocb, sock, msg, size, flags); ++ if ((len >= 0) && sock->sk) ++ vx_sock_recv(sock->sk, len); ++ vxdprintk(VXD_CBIT(net, 7), ++ "__sock_recvmsg: %p[%p,%p,%p;%d]:%d/%d", ++ sock, sock->sk, ++ (sock->sk)?sock->sk->sk_nx_info:0, ++ (sock->sk)?sock->sk->sk_vx_info:0, ++ (sock->sk)?sock->sk->sk_xid:0, ++ (unsigned int)size, len); ++ return len; + } + + int sock_recvmsg(struct socket *sock, struct msghdr *msg, +@@ -1085,6 +1110,10 @@ static int __sock_create(int family, int + if (type < 0 || type >= SOCK_MAX) + return -EINVAL; + ++ /* disable IPv6 inside vservers for now */ ++ if (family == PF_INET6 && !vx_check(0, VX_ADMIN)) ++ return -EAFNOSUPPORT; ++ + /* Compatibility. + + This uglymoron is moved from INET layer to here to avoid +@@ -1195,6 +1224,7 @@ asmlinkage long sys_socket(int family, i + if (retval < 0) + goto out; + ++ set_bit(SOCK_USER_SOCKET, &sock->flags); + retval = sock_map_fd(sock); + if (retval < 0) + goto out_release; +@@ -1225,10 +1255,12 @@ asmlinkage long sys_socketpair(int famil + err = sock_create(family, type, protocol, &sock1); + if (err < 0) + goto out; ++ set_bit(SOCK_USER_SOCKET, &sock1->flags); + + err = sock_create(family, type, protocol, &sock2); + if (err < 0) + goto out_release_1; ++ set_bit(SOCK_USER_SOCKET, &sock2->flags); + + err = sock1->ops->socketpair(sock1, sock2); + if (err < 0) +Index: vserver-sources-2.0.2_2.6.15.4/net/sunrpc/auth.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/sunrpc/auth.c ++++ vserver-sources-2.0.2_2.6.15.4/net/sunrpc/auth.c +@@ -13,6 +13,7 @@ + #include <linux/errno.h> + #include <linux/sunrpc/clnt.h> + #include <linux/spinlock.h> ++#include <linux/vserver/xid.h> + + #ifdef RPC_DEBUG + # define RPCDBG_FACILITY RPCDBG_AUTH +@@ -243,6 +244,7 @@ rpcauth_lookupcred(struct rpc_auth *auth + struct auth_cred acred = { + .uid = current->fsuid, + .gid = current->fsgid, ++ .xid = vx_current_xid(), + .group_info = current->group_info, + }; + struct rpc_cred *ret; +@@ -262,6 +264,7 @@ rpcauth_bindcred(struct rpc_task *task) + struct auth_cred acred = { + .uid = current->fsuid, + .gid = current->fsgid, ++ .xid = vx_current_xid(), + .group_info = current->group_info, + }; + struct rpc_cred *ret; +Index: vserver-sources-2.0.2_2.6.15.4/net/sunrpc/auth_unix.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/sunrpc/auth_unix.c ++++ vserver-sources-2.0.2_2.6.15.4/net/sunrpc/auth_unix.c +@@ -11,12 +11,14 @@ + #include <linux/module.h> + #include <linux/sunrpc/clnt.h> + #include <linux/sunrpc/auth.h> ++#include <linux/vserver/xid.h> + + #define NFS_NGROUPS 16 + + struct unx_cred { + struct rpc_cred uc_base; + gid_t uc_gid; ++ xid_t uc_xid; + gid_t uc_gids[NFS_NGROUPS]; + }; + #define uc_uid uc_base.cr_uid +@@ -78,6 +80,7 @@ unx_create_cred(struct rpc_auth *auth, s + if (flags & RPC_TASK_ROOTCREDS) { + cred->uc_uid = 0; + cred->uc_gid = 0; ++ cred->uc_xid = vx_current_xid(); + cred->uc_gids[0] = NOGROUP; + } else { + int groups = acred->group_info->ngroups; +@@ -86,6 +89,7 @@ unx_create_cred(struct rpc_auth *auth, s + + cred->uc_uid = acred->uid; + cred->uc_gid = acred->gid; ++ cred->uc_xid = acred->xid; + for (i = 0; i < groups; i++) + cred->uc_gids[i] = GROUP_AT(acred->group_info, i); + if (i < NFS_NGROUPS) +@@ -117,7 +121,8 @@ unx_match(struct auth_cred *acred, struc + int groups; + + if (cred->uc_uid != acred->uid +- || cred->uc_gid != acred->gid) ++ || cred->uc_gid != acred->gid ++ || cred->uc_xid != acred->xid) + return 0; + + groups = acred->group_info->ngroups; +@@ -143,7 +148,7 @@ unx_marshal(struct rpc_task *task, u32 * + struct rpc_clnt *clnt = task->tk_client; + struct unx_cred *cred = (struct unx_cred *) task->tk_msg.rpc_cred; + u32 *base, *hold; +- int i; ++ int i, tagxid; + + *p++ = htonl(RPC_AUTH_UNIX); + base = p++; +@@ -153,9 +158,12 @@ unx_marshal(struct rpc_task *task, u32 * + * Copy the UTS nodename captured when the client was created. + */ + p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen); ++ tagxid = task->tk_client->cl_tagxid; + +- *p++ = htonl((u32) cred->uc_uid); +- *p++ = htonl((u32) cred->uc_gid); ++ *p++ = htonl((u32) XIDINO_UID(tagxid, ++ cred->uc_uid, cred->uc_xid)); ++ *p++ = htonl((u32) XIDINO_GID(tagxid, ++ cred->uc_gid, cred->uc_xid)); + hold = p++; + for (i = 0; i < 16 && cred->uc_gids[i] != (gid_t) NOGROUP; i++) + *p++ = htonl((u32) cred->uc_gids[i]); +Index: vserver-sources-2.0.2_2.6.15.4/net/unix/af_unix.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/unix/af_unix.c ++++ vserver-sources-2.0.2_2.6.15.4/net/unix/af_unix.c +@@ -117,6 +117,9 @@ + #include <linux/mount.h> + #include <net/checksum.h> + #include <linux/security.h> ++#include <linux/vs_context.h> ++#include <linux/vs_network.h> ++#include <linux/vs_limit.h> + + int sysctl_unix_max_dgram_qlen = 10; + +@@ -235,6 +238,8 @@ static struct sock *__unix_find_socket_b + sk_for_each(s, node, &unix_socket_table[hash ^ type]) { + struct unix_sock *u = unix_sk(s); + ++ if (!vx_check(s->sk_xid, VX_IDENT|VX_WATCH)) ++ continue; + if (u->addr->len == len && + !memcmp(u->addr->name, sunname, len)) + goto found; +@@ -781,7 +786,7 @@ static int unix_bind(struct socket *sock + */ + mode = S_IFSOCK | + (SOCK_INODE(sock)->i_mode & ~current->fs->umask); +- err = vfs_mknod(nd.dentry->d_inode, dentry, mode, 0); ++ err = vfs_mknod(nd.dentry->d_inode, dentry, mode, 0, NULL); + if (err) + goto out_mknod_dput; + up(&nd.dentry->d_inode->i_sem); +Index: vserver-sources-2.0.2_2.6.15.4/net/x25/af_x25.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/net/x25/af_x25.c ++++ vserver-sources-2.0.2_2.6.15.4/net/x25/af_x25.c +@@ -490,7 +490,10 @@ static int x25_create(struct socket *soc + + x25 = x25_sk(sk); + +- sock_init_data(sock, sk); ++ sk->sk_socket = sock; ++ sk->sk_type = sock->type; ++ sk->sk_sleep = &sock->wait; ++ sock->sk = sk; + + x25_init_timers(sk); + +Index: vserver-sources-2.0.2_2.6.15.4/security/commoncap.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/security/commoncap.c ++++ vserver-sources-2.0.2_2.6.15.4/security/commoncap.c +@@ -142,7 +142,7 @@ void cap_bprm_apply_creds (struct linux_ + /* Derived from fs/exec.c:compute_creds. */ + kernel_cap_t new_permitted, working; + +- new_permitted = cap_intersect (bprm->cap_permitted, cap_bset); ++ new_permitted = cap_intersect (bprm->cap_permitted, vx_current_bcaps()); + working = cap_intersect (bprm->cap_inheritable, + current->cap_inheritable); + new_permitted = cap_combine (new_permitted, working); +@@ -311,7 +311,8 @@ void cap_task_reparent_to_init (struct t + + int cap_syslog (int type) + { +- if ((type != 3 && type != 10) && !capable(CAP_SYS_ADMIN)) ++ if ((type != 3 && type != 10) && ++ !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SYSLOG)) + return -EPERM; + return 0; + } +Index: vserver-sources-2.0.2_2.6.15.4/security/security.c +=================================================================== +--- vserver-sources-2.0.2_2.6.15.4.orig/security/security.c ++++ vserver-sources-2.0.2_2.6.15.4/security/security.c +@@ -185,6 +185,8 @@ int mod_unreg_security(const char *name, + */ + int capable(int cap) + { ++ if (vx_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap)) ++ return 0; + if (security_ops->capable(current, cap)) { + /* capability denied */ + return 0; +@@ -195,9 +197,24 @@ int capable(int cap) + return 1; + } + ++int vx_capable(int cap, int ccap) ++{ ++ if (security_ops->capable(current, cap)) { ++ /* capability denied */ ++ return 0; ++ } ++ if (!vx_ccaps(ccap)) ++ return 0; ++ ++ /* capability granted */ ++ current->flags |= PF_SUPERPRIV; ++ return 1; ++} ++ + EXPORT_SYMBOL_GPL(register_security); + EXPORT_SYMBOL_GPL(unregister_security); + EXPORT_SYMBOL_GPL(mod_reg_security); + EXPORT_SYMBOL_GPL(mod_unreg_security); + EXPORT_SYMBOL(capable); ++EXPORT_SYMBOL(vx_capable); + EXPORT_SYMBOL(security_ops); |