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#!/bin/sh # ---------------------------------------------------------------------- # Copyright (c) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 # NOVELL (All rights reserved) # Copyright (c) 2008, 2009 Canonical, Ltd. # # This program is free software; you can redistribute it and/or # modify it under the terms of version 2 of the GNU General Public # License published by the Free Software Foundation. # # 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, contact Novell, Inc. # ---------------------------------------------------------------------- # Authors: # Steve Beattie <steve.beattie@canonical.com> # Kees Cook <kees@ubuntu.com> # # /etc/init.d/apparmor # ### BEGIN INIT INFO # Provides: apparmor # Required-Start: $local_fs # Required-Stop: umountfs # Default-Start: S # Default-Stop: # Short-Description: AppArmor initialization # Description: AppArmor init script. This script loads all AppArmor profiles. ### END INIT INFO . /lib/apparmor/functions . /lib/lsb/init-functions usage() { echo "Usage: $0 {start|stop|restart|reload|force-reload|status|recache}" } test -x ${PARSER} || exit 0 # by debian policy # LSM is built-in, so it is either there or not enabled for this boot test -d /sys/module/apparmor || exit 0 securityfs() { # Need securityfs for any mode if [ ! -d "${AA_SFS}" ]; then if cut -d" " -f2,3 /proc/mounts | grep -q "^${SECURITYFS} securityfs"'$' ; then log_action_msg "AppArmor not available as kernel LSM." log_end_msg 1 exit 1 else log_action_begin_msg "Mounting securityfs on ${SECURITYFS}" if ! mount -t securityfs none "${SECURITYFS}"; then log_action_end_msg 1 log_end_msg 1 exit 1 fi fi fi if [ ! -w "$AA_SFS"/.load ]; then log_action_msg "Insufficient privileges to change profiles." log_end_msg 1 exit 1 fi } handle_system_policy_package_updates() { apparmor_was_updated=0 if ! compare_previous_version ; then # On snappy flavors, if the current and previous versions are # different then clear the system cache. snappy will handle # "$PROFILES_CACHE_VAR" itself (on Touch flavors # compare_previous_version always returns '0' since snappy # isn't available). clear_cache_system apparmor_was_updated=1 elif ! compare_and_save_debsums apparmor ; then # If the system policy has been updated since the last time we # ran, clear the cache to prevent potentially stale binary # cache files after an Ubuntu image based upgrade (LP: # #1350673). This can be removed once all system image flavors # move to snappy (on snappy systems compare_and_save_debsums # always returns '0' since /var/lib/dpkg doesn't exist). clear_cache apparmor_was_updated=1 fi if [ -x /usr/bin/aa-clickhook ] || [ -x /usr/bin/aa-profile-hook ] ; then # If packages for system policy that affect click packages have # been updated since the last time we ran, run aa-clickhook -f force_clickhook=0 force_profile_hook=0 if ! compare_and_save_debsums apparmor-easyprof-ubuntu ; then force_clickhook=1 fi if ! compare_and_save_debsums apparmor-easyprof-ubuntu-snappy ; then force_clickhook=1 fi if ! compare_and_save_debsums click-apparmor ; then force_clickhook=1 force_profile_hook=1 fi if [ -x /usr/bin/aa-clickhook ] && ([ $force_clickhook -eq 1 ] || [ $apparmor_was_updated -eq 1 ]) ; then aa-clickhook -f fi if [ -x /usr/bin/aa-profile-hook ] && ([ $force_profile_hook -eq 1 ] || [ $apparmor_was_updated -eq 1 ]) ; then aa-profile-hook -f fi fi } # Allow "recache" even when running on the liveCD if [ "$1" = "recache" ]; then log_daemon_msg "Recaching AppArmor profiles" recache_profiles rc=$? log_end_msg "$rc" exit $rc fi # do not perform start/stop/reload actions when running from liveCD test -d /rofs/etc/apparmor.d && exit 0 rc=255 case "$1" in start) if systemd-detect-virt --quiet --container && \ ! is_container_with_internal_policy; then log_daemon_msg "Not starting AppArmor in container" log_end_msg 0 exit 0 fi log_daemon_msg "Starting AppArmor profiles" securityfs handle_system_policy_package_updates load_configured_profiles rc=$? log_end_msg "$rc" ;; stop) log_daemon_msg "Clearing AppArmor profiles cache" clear_cache rc=$? log_end_msg "$rc" cat >&2 <<EOM All profile caches have been cleared, but no profiles have been unloaded. Unloading profiles will leave already running processes permanently unconfined, which can lead to unexpected situations. To set a process to complain mode, use the command line tool 'aa-complain'. To really tear down all profiles, run the init script with the 'teardown' option." EOM ;; teardown) if systemd-detect-virt --quiet --container && \ ! is_container_with_internal_policy; then log_daemon_msg "Not tearing down AppArmor in container" log_end_msg 0 exit 0 fi log_daemon_msg "Unloading AppArmor profiles" securityfs running_profile_names | while read profile; do if ! unload_profile "$profile" ; then log_end_msg 1 exit 1 fi done rc=0 log_end_msg $rc ;; restart|reload|force-reload) if systemd-detect-virt --quiet --container && \ ! is_container_with_internal_policy; then log_daemon_msg "Not reloading AppArmor in container" log_end_msg 0 exit 0 fi log_daemon_msg "Reloading AppArmor profiles" securityfs clear_cache load_configured_profiles rc=$? log_end_msg "$rc" ;; status) securityfs if [ -x /usr/sbin/aa-status ]; then aa-status --verbose else cat "$AA_SFS"/profiles fi rc=$? ;; *) usage rc=1 ;; esac exit $rc