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#
# firewall.py - firewall install data and installation
#
# Copyright (C) 2004 Red Hat, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# Author(s): Bill Nottingham <notting@redhat.com>
# Jeremy Katz <katzj@redhat.com>
#
import iutil
import os.path
from flags import flags
from constants import *
import gettext
_ = lambda x: gettext.ldgettext("anaconda", x)
import logging
log = logging.getLogger("anaconda")
class Firewall:
def __init__ (self):
self.enabled = 1
self.trustdevs = []
self.portlist = []
self.servicelist = []
def writeKS(self, f):
f.write("firewall")
if self.enabled:
for arg in self.getArgList():
f.write(" " + arg)
else:
f.write(" --disabled")
f.write("\n")
def getArgList(self):
args = []
if not self.enabled:
args.append("--disabled")
return args
if not "ssh" in self.servicelist and not "22:tcp" in self.portlist:
args += ["--service=ssh"]
for dev in self.trustdevs:
args = args + [ "--trust=%s" %(dev,) ]
for port in self.portlist:
args = args + [ "--port=%s" %(port,) ]
for service in self.servicelist:
args = args + [ "--service=%s" % (service,) ]
return args
def write (self, instPath):
args = [ "--quiet", "--nostart", "-f" ] + self.getArgList()
try:
if not os.path.exists("%s/etc/sysconfig/iptables" %(instPath,)):
iutil.execWithRedirect("/usr/sbin/lokkit", args,
root=instPath, stdout="/dev/null",
stderr="/dev/null")
else:
log.error("would have run %s", args)
except RuntimeError, msg:
log.error ("lokkit run failed: %s", msg)
except OSError as e:
log.error ("lokkit run failed: %s", e.strerror)
else:
f = open(instPath +
'/etc/sysconfig/system-config-firewall', 'w')
f.write("# system-config-firewall config written out by anaconda\n\n")
for arg in args[3:]:
f.write("%s\n" %(arg,))
f.close()
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