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#
# security.py - security 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/>.
#
# Red Hat Author(s): Jeremy Katz <katzj@redhat.com>
#

import os, string
import iutil
from flags import flags
from pykickstart.constants import *

import logging
log = logging.getLogger("anaconda")

selinux_states = { SELINUX_DISABLED: "disabled",
                   SELINUX_ENFORCING: "enforcing",
                   SELINUX_PERMISSIVE: "permissive" }

class Security:
    def __init__(self):
        if flags.selinux == 1:
            self.selinux = SELINUX_ENFORCING
        else:
            self.selinux = SELINUX_DISABLED

    def setSELinux(self, val):
        if not selinux_states.has_key(val):
            log.error("Tried to set to invalid SELinux state: %s" %(val,))
            val = SELINUX_DISABLED

        self.selinux = val

    def getSELinux(self):
        return self.selinux

    def writeKS(self, f):
        if not selinux_states.has_key(self.selinux):
            log.error("unknown selinux state: %s" %(self.selinux,))
            return

	f.write("selinux --%s\n" %(selinux_states[self.selinux],))

    def write(self, instPath):
        args = [ "--quiet", "--nostart" ]

        if not selinux_states.has_key(self.selinux):
            log.error("unknown selinux state: %s" %(self.selinux,))
            return

        args = args + [ "--selinux=%s" %(selinux_states[self.selinux],) ]

        try:
            if not flags.test:
                iutil.execWithRedirect("/usr/sbin/lokkit", args,
                                       root = instPath, stdout = None,
                                       stderr = None)
            else:
                log.info("would have run %s" %(args,))
        except RuntimeError, msg:
            log.error ("lokkit run failed: %s" %(msg,))
        except OSError, (errno, msg):
            log.error ("lokkit run failed: %s" %(msg,))