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statusPage.py
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/
statusPage.py
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# statusPage.py - show selinux status
## Copyright (C) 2006-2009 Red Hat, Inc.
## 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, write to the Free Software
## Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
## Author: Dan Walsh
import os
import sys
from gi.repository import Gtk
import selinux
INSTALLPATH = '/usr/share/system-config-selinux'
sys.path.append(INSTALLPATH)
ENFORCING = 1
PERMISSIVE = 0
DISABLED = -1
modearray = ("disabled", "permissive", "enforcing")
SELINUXDIR = "/etc/selinux/"
RELABELFILE = "/.autorelabel"
##
## I18N
##
PROGNAME = "selinux-gui"
try:
import gettext
kwargs = {}
if sys.version_info < (3,):
kwargs['unicode'] = True
t = gettext.translation(PROGNAME,
localedir="/usr/share/locale",
**kwargs,
fallback=True)
_ = t.gettext
except:
try:
import builtins
builtins.__dict__['_'] = str
except ImportError:
import __builtin__
__builtin__.__dict__['_'] = unicode
class statusPage:
def __init__(self, xml):
self.xml = xml
self.needRelabel = False
self.type = selinux.selinux_getpolicytype()
# Bring in widgets from glade file.
self.selinuxTypeOptionMenu = xml.get_object("selinuxTypeOptionMenu")
self.typeLabel = xml.get_object("typeLabel")
self.enabledOptionMenu = xml.get_object("enabledOptionMenu")
self.currentOptionMenu = xml.get_object("currentOptionMenu")
self.relabel_checkbutton = xml.get_object("relabelCheckbutton")
self.relabel_checkbutton.set_active(self.is_relabel())
self.relabel_checkbutton.connect("toggled", self.on_relabel_toggle)
if self.get_current_mode() == ENFORCING or self.get_current_mode() == PERMISSIVE:
self.currentOptionMenu.append_text(_("Permissive"))
self.currentOptionMenu.append_text(_("Enforcing"))
self.currentOptionMenu.set_active(self.get_current_mode())
self.currentOptionMenu.connect("changed", self.set_current_mode)
self.currentOptionMenu.set_sensitive(True)
else:
self.currentOptionMenu.append_text(_("Disabled"))
self.currentOptionMenu.set_active(0)
self.currentOptionMenu.set_sensitive(False)
if self.read_selinux_config() is None:
self.selinuxsupport = False
else:
self.enabledOptionMenu.connect("changed", self.enabled_changed)
#
# This line must come after read_selinux_config
#
self.selinuxTypeOptionMenu.connect("changed", self.typemenu_changed)
self.typeLabel.set_mnemonic_widget(self.selinuxTypeOptionMenu)
def use_menus(self):
return False
def get_description(self):
return _("Status")
def get_current_mode(self):
if selinux.is_selinux_enabled():
if selinux.security_getenforce() > 0:
return ENFORCING
else:
return PERMISSIVE
else:
return DISABLED
def set_current_mode(self, menu):
selinux.security_setenforce(menu.get_active() == 1)
def is_relabel(self):
return os.access(RELABELFILE, os.F_OK) != 0
def on_relabel_toggle(self, button):
if button.get_active():
fd = open(RELABELFILE, "w")
fd.close()
else:
if os.access(RELABELFILE, os.F_OK) != 0:
os.unlink(RELABELFILE)
def verify(self, message):
dlg = Gtk.MessageDialog(None, 0, Gtk.MessageType.INFO,
Gtk.ButtonsType.YES_NO,
message)
dlg.set_position(Gtk.WindowPosition.MOUSE)
dlg.show_all()
rc = dlg.run()
dlg.destroy()
return rc
def typemenu_changed(self, menu):
type = self.get_type()
enabled = self.enabledOptionMenu.get_active()
if self.initialtype != type:
if self.verify(_("Changing the policy type will cause a relabel of the entire file system on the next boot. Relabeling takes a long time depending on the size of the file system. Do you wish to continue?")) == Gtk.ResponseType.NO:
menu.set_active(self.typeHistory)
return None
self.relabel_checkbutton.set_active(True)
self.write_selinux_config(modearray[enabled], type)
self.typeHistory = menu.get_active()
def enabled_changed(self, combo):
enabled = combo.get_active()
type = self.get_type()
if self.initEnabled != DISABLED and enabled == DISABLED:
if self.verify(_("Changing to SELinux disabled requires a reboot. It is not recommended. If you later decide to turn SELinux back on, the system will be required to relabel. If you just want to see if SELinux is causing a problem on your system, you can go to permissive mode which will only log errors and not enforce SELinux policy. Permissive mode does not require a reboot Do you wish to continue?")) == Gtk.ResponseType.NO:
combo.set_active(self.enabled)
return None
if self.initEnabled == DISABLED and enabled < 2:
if self.verify(_("Changing to SELinux enabled will cause a relabel of the entire file system on the next boot. Relabeling takes a long time depending on the size of the file system. Do you wish to continue?")) == Gtk.ResponseType.NO:
combo.set_active(self.enabled)
return None
self.relabel_checkbutton.set_active(True)
self.write_selinux_config(modearray[enabled], type)
self.enabled = enabled
def write_selinux_config(self, enforcing, type):
path = selinux.selinux_path() + "config"
backup_path = path + ".bck"
fd = open(path)
lines = fd.readlines()
fd.close()
fd = open(backup_path, "w")
for l in lines:
if l.startswith("SELINUX="):
fd.write("SELINUX=%s\n" % enforcing)
continue
if l.startswith("SELINUXTYPE="):
fd.write("SELINUXTYPE=%s\n" % type)
continue
fd.write(l)
fd.close()
os.rename(backup_path, path)
def read_selinux_config(self):
self.initialtype = selinux.selinux_getpolicytype()[1]
try:
self.initEnabled = selinux.selinux_getenforcemode()[1]
except:
self.initEnabled = False
pass
self.enabled = self.initEnabled
self.enabledOptionMenu.set_active(self.enabled + 1)
self.types = []
n = 0
current = n
for i in os.listdir(SELINUXDIR):
if os.path.isdir(SELINUXDIR + i) and os.path.isdir(SELINUXDIR + i + "/policy"):
self.types.append(i)
self.selinuxTypeOptionMenu.append_text(i)
if i == self.initialtype:
current = n
n = n + 1
self.selinuxTypeOptionMenu.set_active(current)
self.typeHistory = current
return 0
def get_type(self):
return self.types[self.selinuxTypeOptionMenu.get_active()]