Added pam_mod_misc.h as a test

5 files changed, 315 insertions, 0 deletions

diff --git a/include/pam_mod_misc.h b/include/pam_mod_misc.h
new file mode 100755
index 0000000..b1609fc
--- /dev/null
+++ b/include/pam_mod_misc.h
@@ -0,0 +1,33 @@
+#ifndef PAM_MOD_MISC_H
+#define PAM_MOD_MISC_H
+
+/*
+ * All of this file has been taken from freebsd-lib and has been slightly
+ * modified to avoid any problems when used on Linux machines. It provides
+ * an easier logging interface and some additional options for OpenPAM.
+ */
+
+#ifndef __linux__
+# include <sys/cdefs.h>
+#endif
+
+
+/*
+ * Common option names
+ */
+#define	PAM_OPT_NULLOK		"nullok"
+#define PAM_OPT_AUTH_AS_SELF	"auth_as_self"
+#define PAM_OPT_ECHO_PASS	"echo_pass"
+#define PAM_OPT_DEBUG		"debug"
+
+
+#define	PAM_LOG(...) \
+	openpam_log(PAM_LOG_DEBUG, __VA_ARGS__)
+
+#define PAM_RETURN(arg) \
+	return (arg)
+
+#define PAM_VERBOSE_ERROR(...) \
+	_pam_verbose_error(pamh, flags, __FILE__, __FUNCTION__, __VA_ARGS__)
+
+#endif
diff --git a/include/pam_mod_misc.h~ b/include/pam_mod_misc.h~
new file mode 100755
index 0000000..7576989
--- /dev/null
+++ b/include/pam_mod_misc.h~
@@ -0,0 +1,56 @@
+/*-
+ * Copyright 1998 Juniper Networks, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	$FreeBSD: src/lib/libpam/libpam/security/pam_mod_misc.h,v 1.12 2003/05/31 16:56:35 des Exp $
+ */
+
+#ifndef PAM_MOD_MISC_H
+#define PAM_MOD_MISC_H
+
+#include <sys/cdefs.h>
+
+/*
+ * Common option names
+ */
+#define	PAM_OPT_NULLOK		"nullok"
+#define PAM_OPT_AUTH_AS_SELF	"auth_as_self"
+#define PAM_OPT_ECHO_PASS	"echo_pass"
+#define PAM_OPT_DEBUG		"debug"
+
+__BEGIN_DECLS
+void	_pam_verbose_error(pam_handle_t *, int, const char *,
+		const char *, const char *, ...);
+__END_DECLS
+
+#define	PAM_LOG(...) \
+	openpam_log(PAM_LOG_DEBUG, __VA_ARGS__)
+
+#define PAM_RETURN(arg) \
+	return (arg)
+
+#define PAM_VERBOSE_ERROR(...) \
+	_pam_verbose_error(pamh, flags, __FILE__, __FUNCTION__, __VA_ARGS__)
+
+#endif
diff --git a/src/pam_unix/pam_unix.c~ b/src/pam_unix/pam_unix.c~
new file mode 100644
index 0000000..598ab02
--- /dev/null
+++ b/src/pam_unix/pam_unix.c~
@@ -0,0 +1,226 @@
+
+/* #include <pwd.h> */ 
+#include <netdb.h>
+#include <shadow.h>  
+#include <sys/types.h>
+#include <unistd.h>
+
+#define PAM_OPT_NULLOK          "nullok"
+#define PAM_OPT_AUTH_AS_SELF    "auth_as_self"
+#define PAM_OPT_ECHO_PASS       "echo_pass"
+#define PAM_OPT_DEBUG           "debug"
+
+
+
+#ifndef MAXHOSTNAMELEN
+# define MAXHOSTNAMELEN 256
+#endif
+
+
+#ifndef __linux__
+#include <login_cap.h>
+#endif
+
+#include <security/pam_modules.h>
+#include <security/pam_appl.h>
+
+
+
+PAM_EXTERN int
+pam_sm_authenticate(pam_handle_t *pamh, int flags,
+		int argc , const char **argv ) {
+
+#ifndef __linux__
+	login_cap_t *lc;
+#endif
+	struct spwd *pwd;
+	const char *pass, *crypt_pass, *user;
+	int pam_err;
+
+	/* identify user */
+	
+	if (openpam_get_option(pamh, PAM_OPT_AUTH_AS_SELF)) {
+		pwd = getspnam(getlogin());
+	} else {
+		if ((pam_err = pam_get_user(pamh, &user, NULL)) != PAM_SUCCESS)
+	                return (pam_err);
+
+	        pwd = getspnam(user);
+	}
+        
+	/* get password */
+
+	if (pwd != NULL) {
+	        pass = pwd->sp_pwdp;
+		if (pass[0] == '\0') {
+			if (!(flags & PAM_DISALLOW_NULL_AUTHTOK) &&
+					openpam_get_option(pamh, PAM_OPT_NULLOK))
+				return (PAM_SUCCESS);
+			
+			pass = "*";
+		}
+#ifndef __linux__
+		lc = login_getpwclass(pwd);
+#endif
+	} else {
+		pass =  "*";
+#ifndef __linux__     
+		lc = login_getpwclass(NULL);
+#endif
+	}
+
+#ifndef __linux__
+        prompt = login_getcapstr(lc, "passwd_prompt", NULL, NULL);
+        pam_err = pam_get_authtok(pamh, PAM_AUTHTOK, &pass, prompt);
+        login_close(lc);
+#else
+	pam_err = pam_get_authtok(pamh, PAM_AUTHTOK, (const char **) &pass, NULL);
+#endif
+
+        if (pam_err == PAM_CONV_ERR)
+                return (pam_err);
+	if (pam_err != PAM_SUCCESS)
+	        return (PAM_AUTH_ERR);
+	
+	/* check shadow */
+	
+	crypt_pass = crypt(pass, pwd->sp_pwdp); 
+	if ( strcmp(crypt_pass, pwd->sp_pwdp) != 0 ) 
+		pam_err = PAM_AUTH_ERR;
+	else
+		pam_err = PAM_SUCCESS;
+	
+	return (pam_err);
+}
+
+PAM_EXTERN int
+pam_sm_setcred(pam_handle_t *pamh , int flags ,
+		    int argc , const char *argv[] ) {
+	
+	/* 
+	 * This functions takes care of renewing/initializing
+	 * user credentials as well as gid/uids. Someday, it
+	 * will be completed. For now, it's not very urgent. 
+	 */
+
+	return (PAM_SUCCESS);
+}
+
+
+PAM_EXTERN int
+pam_sm_acct_mgmt(pam_handle_t *pamh, int flags ,
+		    int argc , const char *argv[] ) {
+
+
+
+#ifndef __linux__
+	login_cap_t *lc;
+#endif
+
+	struct spwd *pwd;
+	int pam_err;
+	const char *user;
+	time_t curtime;
+	
+#ifndef __linux__
+	const void *rhost, *tty;
+	char rhostip[MAXHOSTNAMELEN] = "";
+#endif
+
+	/* Sanity checks for uname,pwd,tty,host etc */
+
+	pam_err = pam_get_user(pamh, &user, NULL);
+
+	if (pam_err != PAM_SUCCESS)
+		return (pam_err);
+
+	if (user == NULL || (pwd = getspnam(user)) == NULL)
+		return (PAM_SERVICE_ERR);
+#ifndef __linux__
+
+	/* 
+	 * tty/host info are provided by login classes
+	 * and cannot be used out of the box under Linux
+	 * for sanity checking (BSD only). May need to 
+	 * be ported/rewritten to work on Linux as well.
+	 * Time will tell...
+	 */
+	pam_err = pam_get_item(pamh, PAM_RHOST, &rhost);
+
+	if (pam_err != PAM_SUCCESS)
+		return (pam_err);
+
+	pam_err = pam_get_item(pamh, PAM_TTY, &tty);
+
+	if (pam_err != PAM_SUCCESS)
+		return (pam_err);
+#endif
+	if (*pwd->sp_pwdp == '\0' &&
+         	(flags & PAM_DISALLOW_NULL_AUTHTOK) != 0)
+		return (PAM_NEW_AUTHTOK_REQD);
+
+#ifndef __linux__
+	lc = login_getpwclass(pwd);
+	
+	if (lc == NULL) {
+		return (PAM_SERVICE_ERR);
+		
+	}
+#endif
+	/* Check if pw_lstchg or pw_expire is set */
+
+	if (pwd->sp_lstchg || pwd->sp_expire) 
+		curtime = time(NULL) / (60 * 60 * 24);
+	if (pwd->sp_expire) {
+		if ( (curtime > pwd->sp_expire ) && ( pwd->sp_expire != -1 ) ) {  
+#ifndef __linux__ 		
+			login_close(lc);
+#endif	
+			return (PAM_ACCT_EXPIRED);
+		} else if ( ( pwd->sp_expire - curtime < pwd->sp_warn) ) {
+//			pam_error(pamh, "Warning: your account expires on %s",
+//					 ctime(&pwd->pw_expire));
+		}
+	}
+
+	if (pwd->sp_lstchg == 0 ) {
+		return (PAM_NEW_AUTHTOK_REQD)
+	}
+	
+	/* check all other possibilities (mostly stolen from pam_tcb) */
+	
+	if ((curtime > (pwd->sp_lstchg + pwd->sp_max + pwd->sp_inact)) &&
+			(pwd->sp_max != -1) && (pwd->sp_inact != -1) &&
+			(pwd->sp_lstchg != 0)) 
+		return (PAM_ACCT_EXPIRED);
+	
+	if (((pwd->sp_lstchg + pwd->sp_max) < curtime) &&
+		        (pwd->sp_max != -1))
+		return (PAM_ACCT_EXPIRED);
+
+	if ((curtime - pwd->sp_lstchg > pwd->sp_max)
+			&& (curtime - pwd->sp_lstchg > pwd->sp_inact)
+			&& (curtime - pwd->sp_lstchg > pwd->sp_max + pwd->sp_inact)
+			&& (pwd->sp_max != -1) && (pwd->sp_inact != -1))
+		 return (PAM_ACCT_EXPIRED);
+
+	pam_err = (PAM_SUCCESS);
+
+#ifndef __linux__
+
+	/* validate tty/host/time */
+
+	if (!auth_hostok(lc, rhost, rhostip) ||
+			!auth_ttyok(lc, tty) ||
+			!auth_timeok(lc, time(NULL)))
+		pam_err = PAM_AUTH_ERR;
+
+
+	login_close(lc);
+#endif
+
+	return (pam_err);
+
+}
+
+
diff --git a/src/pam_unix/pam_unix.o b/src/pam_unix/pam_unix.o
new file mode 100644
index 0000000..15ea754
--- /dev/null
+++ b/src/pam_unix/pam_unix.o
diff --git a/src/pam_unix/pam_unix.so.1 b/src/pam_unix/pam_unix.so.1
new file mode 100755
index 0000000..7d4bc44
--- /dev/null
+++ b/src/pam_unix/pam_unix.so.1