[meta-security][PATCH 2/2] apparmor: use its own initscript and service files


Yi Zhao
 

Use initscript and service files provided by apparmor.

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
---
recipes-mac/AppArmor/apparmor_3.0.1.bb | 33 +--
...x-hardcoded-installation-directories.patch | 51 ++++
...pparmor.debian-add-missing-functions.patch | 57 ++++
recipes-mac/AppArmor/files/apparmor | 226 ---------------
recipes-mac/AppArmor/files/apparmor.rc | 98 -------
recipes-mac/AppArmor/files/apparmor.service | 22 --
recipes-mac/AppArmor/files/functions | 271 ------------------
7 files changed, 118 insertions(+), 640 deletions(-)
create mode 100644 recipes-mac/AppArmor/files/0001-Makefile-fix-hardcoded-installation-directories.patch
create mode 100644 recipes-mac/AppArmor/files/0001-rc.apparmor.debian-add-missing-functions.patch
delete mode 100644 recipes-mac/AppArmor/files/apparmor
delete mode 100644 recipes-mac/AppArmor/files/apparmor.rc
delete mode 100644 recipes-mac/AppArmor/files/apparmor.service
delete mode 100644 recipes-mac/AppArmor/files/functions

diff --git a/recipes-mac/AppArmor/apparmor_3.0.1.bb b/recipes-mac/AppArmor/apparmor_3.0.1.bb
index 6377683..ff5b39b 100644
--- a/recipes-mac/AppArmor/apparmor_3.0.1.bb
+++ b/recipes-mac/AppArmor/apparmor_3.0.1.bb
@@ -15,15 +15,13 @@ DEPENDS = "bison-native apr gettext-native coreutils-native swig-native"

SRC_URI = " \
git://gitlab.com/apparmor/apparmor.git;protocol=https;branch=apparmor-3.0 \
+ file://run-ptest \
file://disable_perl_h_check.patch \
file://crosscompile_perl_bindings.patch \
- file://apparmor.rc \
- file://functions \
- file://apparmor \
- file://apparmor.service \
file://0001-Makefile.am-suppress-perllocal.pod.patch \
- file://run-ptest \
file://0001-Revert-profiles-Update-make-check-to-select-tools-ba.patch \
+ file://0001-Makefile-fix-hardcoded-installation-directories.patch \
+ file://0001-rc.apparmor.debian-add-missing-functions.patch \
"

SRCREV = "b0f08aa9d678197b8e3477c2fbff790f50a1de5e"
@@ -79,8 +77,6 @@ do_compile () {
}

do_install () {
- install -d ${D}/${INIT_D_DIR}
- install -d ${D}/lib/apparmor
oe_runmake -C ${B}/libraries/libapparmor DESTDIR="${D}" install
oe_runmake -C ${B}/binutils DESTDIR="${D}" install
oe_runmake -C ${B}/utils DESTDIR="${D}" install
@@ -96,16 +92,16 @@ do_install () {
fi

if ${@bb.utils.contains('DISTRO_FEATURES', 'pam', 'true', 'false', d)}; then
- install -d ${D}/lib/security
oe_runmake -C ${B}/changehat/pam_apparmor DESTDIR="${D}" install
fi

- install -m 755 ${WORKDIR}/apparmor ${D}/${INIT_D_DIR}/apparmor
- install -m 755 ${WORKDIR}/functions ${D}/lib/apparmor
+ if ${@bb.utils.contains('DISTRO_FEATURES','sysvinit','true','false',d)}; then
+ install -d ${D}${sysconfdir}/init.d
+ install -m 755 ${B}/parser/rc.apparmor.debian ${D}${sysconfdir}/init.d/apparmor
+ fi

if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
- install -d ${D}${systemd_system_unitdir}
- install -m 0644 ${WORKDIR}/apparmor.service ${D}${systemd_system_unitdir}
+ oe_runmake -C ${B}/parser DESTDIR="${D}" install-systemd
fi
}

@@ -152,15 +148,6 @@ do_install_ptest_arm() {
:
}

-pkg_postinst_ontarget_${PN} () {
-if [ ! -d /etc/apparmor.d/cache ] ; then
- mkdir /etc/apparmor.d/cache
-fi
-}
-
-# We need the init script so don't rm it
-RMINITDIR_class-target_remove = " rm_sysvinit_initddir"
-
INITSCRIPT_PACKAGES = "${PN}"
INITSCRIPT_NAME = "apparmor"
INITSCRIPT_PARAMS = "start 16 2 3 4 5 . stop 35 0 1 6 ."
@@ -171,9 +158,9 @@ SYSTEMD_AUTO_ENABLE ?= "enable"

PACKAGES += "mod-${PN}"

-FILES_${PN} += "/lib/apparmor/ /lib/security/ ${sysconfdir}/apparmor ${nonarch_libdir}/${PYTHON_DIR}/site-packages"
+FILES_${PN} += "${nonarch_base_libdir}/apparmor/ ${base_libdir}/security/ ${sysconfdir}/apparmor ${nonarch_libdir}/${PYTHON_DIR}/site-packages"
FILES_mod-${PN} = "${libdir}/apache2/modules/*"
-FILES_${PN}-dbg += "/lib/security/"
+FILES_${PN}-dbg += "${base_libdir}/security/.debug"

DEPENDS_append_libc-musl = " fts "
RDEPENDS_${PN}_libc-musl += "musl-utils"
diff --git a/recipes-mac/AppArmor/files/0001-Makefile-fix-hardcoded-installation-directories.patch b/recipes-mac/AppArmor/files/0001-Makefile-fix-hardcoded-installation-directories.patch
new file mode 100644
index 0000000..f10acb1
--- /dev/null
+++ b/recipes-mac/AppArmor/files/0001-Makefile-fix-hardcoded-installation-directories.patch
@@ -0,0 +1,51 @@
+From 363114dcd72abf1c0dcd637c66037227b8be229b Mon Sep 17 00:00:00 2001
+From: Yi Zhao <yi.zhao@windriver.com>
+Date: Mon, 21 Jun 2021 14:18:30 +0800
+Subject: [PATCH 1/2] Makefile: fix hardcoded installation directories
+
+Update the installation directories to fix the do_install error for
+multilib and usrmerge.
+
+Upstream-Status: Inappropriate [configuration]
+
+Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
+---
+ changehat/pam_apparmor/Makefile | 2 +-
+ parser/Makefile | 8 ++++----
+ 2 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/changehat/pam_apparmor/Makefile b/changehat/pam_apparmor/Makefile
+index f6ece2d1..0143ae9f 100644
+--- a/changehat/pam_apparmor/Makefile
++++ b/changehat/pam_apparmor/Makefile
+@@ -77,7 +77,7 @@ $(NAME).so: ${OBJECTS}
+
+ # need some better way of determining this
+ DESTDIR=/
+-SECDIR ?= ${DESTDIR}/lib/security
++SECDIR ?= ${DESTDIR}/${base_libdir}/security
+
+ .PHONY: install
+ install: $(NAME).so
+diff --git a/parser/Makefile b/parser/Makefile
+index 8250ac45..cf18bc11 100644
+--- a/parser/Makefile
++++ b/parser/Makefile
+@@ -23,10 +23,10 @@ COMMONDIR=../common/
+ include $(COMMONDIR)/Make.rules
+
+ DESTDIR=/
+-APPARMOR_BIN_PREFIX=${DESTDIR}/lib/apparmor
+-SBINDIR=${DESTDIR}/sbin
+-USR_SBINDIR=${DESTDIR}/usr/sbin
+-SYSTEMD_UNIT_DIR=${DESTDIR}/usr/lib/systemd/system
++APPARMOR_BIN_PREFIX=${DESTDIR}/${nonarch_base_libdir}/apparmor
++SBINDIR=${DESTDIR}/${base_sbindir}
++USR_SBINDIR=${DESTDIR}/${sbindir}
++SYSTEMD_UNIT_DIR=${DESTDIR}/${systemd_system_unitdir}
+ CONFDIR=/etc/apparmor
+ INSTALL_CONFDIR=${DESTDIR}${CONFDIR}
+ LOCALEDIR=/usr/share/locale
+--
+2.17.1
+
diff --git a/recipes-mac/AppArmor/files/0001-rc.apparmor.debian-add-missing-functions.patch b/recipes-mac/AppArmor/files/0001-rc.apparmor.debian-add-missing-functions.patch
new file mode 100644
index 0000000..53bdde8
--- /dev/null
+++ b/recipes-mac/AppArmor/files/0001-rc.apparmor.debian-add-missing-functions.patch
@@ -0,0 +1,57 @@
+From a737c95ac0f887c365fe8f16583ea95da79de1e9 Mon Sep 17 00:00:00 2001
+From: Yi Zhao <yi.zhao@windriver.com>
+Date: Mon, 21 Jun 2021 16:53:39 +0800
+Subject: [PATCH] rc.apparmor.debian: add missing functions
+
+Add missing functions:
+ aa_log_action_start
+ aa_log_action_end
+ aa_log_daemon_msg
+ aa_log_end_msg
+
+Fixes:
+$ /etc/init.d/apparmor start
+/lib/apparmor/rc.apparmor.functions: line 294: aa_log_daemon_msg: command not found
+/lib/apparmor/rc.apparmor.functions: line 214: aa_log_action_start: command not found
+
+Upstream-Status: Pending
+
+Signed-off-by: Yi Zhao <yi.zhao@windriver.com>
+---
+ parser/rc.apparmor.debian | 20 ++++++++++++++++++++
+ 1 file changed, 20 insertions(+)
+
+diff --git a/parser/rc.apparmor.debian b/parser/rc.apparmor.debian
+index 8efd4400..f35124e8 100644
+--- a/parser/rc.apparmor.debian
++++ b/parser/rc.apparmor.debian
+@@ -70,6 +70,26 @@ aa_log_skipped_msg() {
+ echo ": Skipped."
+ }
+
++aa_log_action_start()
++{
++ echo "$@"
++}
++
++aa_log_action_end()
++{
++ printf ""
++}
++
++aa_log_daemon_msg()
++{
++ echo "$@"
++}
++
++aa_log_end_msg()
++{
++ printf ""
++}
++
+ usage() {
+ echo "Usage: $0 {start|stop|restart|try-restart|reload|force-reload|status|kill}"
+ }
+--
+2.17.1
+
diff --git a/recipes-mac/AppArmor/files/apparmor b/recipes-mac/AppArmor/files/apparmor
deleted file mode 100644
index 604e48d..0000000
--- a/recipes-mac/AppArmor/files/apparmor
+++ /dev/null
@@ -1,226 +0,0 @@
-#!/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
-
-log_daemon_msg() {
- echo $*
-}
-
-log_end_msg () {
- retval=$1
- if [ $retval -eq 0 ]; then
- echo "."
- else
- echo " failed!"
- fi
- return $retval
-}
-
-. /lib/apparmor/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_daemon_msg "AppArmor not available as kernel LSM."
- log_end_msg 1
- exit 1
- else
- log_daemon_msg "Mounting securityfs on ${SECURITYFS}"
- if ! mount -t securityfs none "${SECURITYFS}"; then
- log_end_msg 1
- exit 1
- fi
- fi
- fi
- if [ ! -w "$AA_SFS"/.load ]; then
- log_daemon_msg "Insufficient privileges to change profiles."
- log_end_msg 1
- exit 1
- fi
-}
-
-handle_system_policy_package_updates() {
- apparmor_was_updated=0
-
- if ! compare_previous_version ; then
- # On snappy flavors, if the current and previous versions are
- # different then clear the system cache. snappy will handle
- # "$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 "$1" in
- start)
- if test -x /sbin/systemd-detect-virt && \
- systemd-detect-virt --quiet --container && \
- ! is_container_with_internal_policy; then
- log_daemon_msg "Not starting AppArmor in container"
- log_end_msg 0
- exit 0
- fi
- log_daemon_msg "Starting AppArmor profiles"
- securityfs
- # That is only useful for click, snappy and system images,
- # i.e. not in Debian. And it reads and writes to /var, that
- # can be remote-mounted, so it would prevent us from using
- # Before=sysinit.target without possibly introducing dependency
- # loops.
- handle_system_policy_package_updates
- load_configured_profiles
- rc=$?
- log_end_msg "$rc"
- ;;
- stop)
- log_daemon_msg "Clearing AppArmor profiles cache"
- clear_cache
- rc=$?
- log_end_msg "$rc"
- cat >&2 <<EOM
-All profile caches have been cleared, but no profiles have been unloaded.
-Unloading profiles will leave already running processes permanently
-unconfined, which can lead to unexpected situations.
-
-To set a process to complain mode, use the command line tool
-'aa-complain'. To really tear down all profiles, run the init script
-with the 'teardown' option."
-EOM
- ;;
- teardown)
- if test -x /sbin/systemd-detect-virt && \
- systemd-detect-virt --quiet --container && \
- ! is_container_with_internal_policy; then
- log_daemon_msg "Not tearing down AppArmor in container"
- log_end_msg 0
- exit 0
- fi
- log_daemon_msg "Unloading AppArmor profiles"
- securityfs
- running_profile_names | while read profile; do
- if ! unload_profile "$profile" ; then
- log_end_msg 1
- exit 1
- fi
- done
- rc=0
- log_end_msg $rc
- ;;
- restart|reload|force-reload)
- if test -x /sbin/systemd-detect-virt && \
- systemd-detect-virt --quiet --container && \
- ! is_container_with_internal_policy; then
- log_daemon_msg "Not reloading AppArmor in container"
- log_end_msg 0
- exit 0
- fi
- log_daemon_msg "Reloading AppArmor profiles"
- securityfs
- clear_cache
- load_configured_profiles
- rc=$?
- unload_obsolete_profiles
-
- 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 $rc
diff --git a/recipes-mac/AppArmor/files/apparmor.rc b/recipes-mac/AppArmor/files/apparmor.rc
deleted file mode 100644
index 1507d7b..0000000
--- a/recipes-mac/AppArmor/files/apparmor.rc
+++ /dev/null
@@ -1,98 +0,0 @@
-description "Pre-cache and pre-load apparmor profiles"
-author "Dimitri John Ledkov <xnox@ubuntu.com> and Jamie Strandboge <jamie@ubuntu.com>"
-
-task
-
-start on starting rc-sysinit
-
-script
- [ -d /rofs/etc/apparmor.d ] && exit 0 # do not load on liveCD
- [ -d /sys/module/apparmor ] || exit 0 # do not load without AppArmor
- [ -x /sbin/apparmor_parser ] || exit 0 # do not load without parser
-
- . /lib/apparmor/functions
-
- systemd-detect-virt --quiet --container && ! is_container_with_internal_policy && exit 0 || true
-
- # Need securityfs for any mode
- if [ ! -d /sys/kernel/security/apparmor ]; then
- if cut -d" " -f2,3 /proc/mounts | grep -q "^/sys/kernel/security securityfs"'$' ; then
- exit 0
- else
- mount -t securityfs none /sys/kernel/security || exit 0
- fi
- fi
-
- [ -w /sys/kernel/security/apparmor/.load ] || exit 0
-
- 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 ] || [ $apparmor_was_updated -eq 1 ]) ; then
- aa-profile-hook -f
- fi
- fi
-
- if [ "$ACTION" = "teardown" ]; then
- running_profile_names | while read profile; do
- unload_profile "$profile"
- done
- exit 0
- fi
-
- if [ "$ACTION" = "clear" ]; then
- clear_cache
- exit 0
- fi
-
- if [ "$ACTION" = "reload" ] || [ "$ACTION" = "force-reload" ]; then
- clear_cache
- load_configured_profiles
- unload_obsolete_profiles
- exit 0
- fi
-
- # Note: if apparmor-easyprof-ubuntu md5sums didn't match up above,
- # aa-clickhook will have already compiled the policy, generated the cache
- # files and loaded them into the kernel by this point, so reloading click
- # policy from cache, while fairly fast (<2 seconds for 250 profiles on
- # armhf), is redundant. Fixing this would complicate the logic quite a bit
- # and it wouldn't improve the (by far) common case (ie, when
- # 'aa-clickhook -f' is not run).
- load_configured_profiles
-end script
diff --git a/recipes-mac/AppArmor/files/apparmor.service b/recipes-mac/AppArmor/files/apparmor.service
deleted file mode 100644
index e66afe4..0000000
--- a/recipes-mac/AppArmor/files/apparmor.service
+++ /dev/null
@@ -1,22 +0,0 @@
-[Unit]
-Description=AppArmor initialization
-After=local-fs.target
-Before=sysinit.target
-AssertPathIsReadWrite=/sys/kernel/security/apparmor/.load
-ConditionSecurity=apparmor
-DefaultDependencies=no
-Documentation=man:apparmor(7)
-Documentation=http://wiki.apparmor.net/
-
-# Don't start this unit on the Ubuntu Live CD
-ConditionPathExists=!/rofs/etc/apparmor.d
-
-[Service]
-Type=oneshot
-RemainAfterExit=yes
-ExecStart=/etc/init.d/apparmor start
-ExecStop=/etc/init.d/apparmor stop
-ExecReload=/etc/init.d/apparmor reload
-
-[Install]
-WantedBy=sysinit.target
diff --git a/recipes-mac/AppArmor/files/functions b/recipes-mac/AppArmor/files/functions
deleted file mode 100644
index e9e2bbf..0000000
--- a/recipes-mac/AppArmor/files/functions
+++ /dev/null
@@ -1,271 +0,0 @@
-# /lib/apparmor/functions for Debian -*- shell-script -*-
-# ----------------------------------------------------------------------
-# Copyright (c) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
-# NOVELL (All rights reserved)
-# Copyright (c) 2008-2010 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:
-# Kees Cook <kees@ubuntu.com>
-
-PROFILES="/etc/apparmor.d"
-PROFILES_CACHE="$PROFILES/cache"
-PROFILES_VAR="/var/lib/apparmor/profiles"
-PROFILES_SNAPPY="/var/lib/snapd/apparmor/profiles"
-PROFILES_CACHE_VAR="/var/cache/apparmor"
-PARSER="/sbin/apparmor_parser"
-SECURITYFS="/sys/kernel/security"
-export AA_SFS="$SECURITYFS/apparmor"
-
-# Suppress warnings when booting in quiet mode
-quiet_arg=""
-[ "${QUIET:-no}" = yes ] && quiet_arg="-q"
-[ "${quiet:-n}" = y ] && quiet_arg="-q"
-
-foreach_configured_profile() {
- rc_all="0"
- for pdir in "$PROFILES" "$PROFILES_VAR" "$PROFILES_SNAPPY" ; do
- if [ ! -d "$pdir" ]; then
- continue
- fi
- num=`find "$pdir" -type f ! -name '*.md5sums' | wc -l`
- if [ "$num" = "0" ]; then
- continue
- fi
-
- cache_dir="$PROFILES_CACHE"
- if [ -d "$PROFILES_CACHE_VAR" ] && [ "$pdir" = "$PROFILES_VAR" ] || [ "$pdir" = "$PROFILES_SNAPPY" ]; then
- cache_dir="$PROFILES_CACHE_VAR"
- fi
- cache_args="--cache-loc=$cache_dir"
- if [ ! -d "$cache_dir" ]; then
- cache_args=
- fi
-
- # LP: #1383858 - expr tree simplification is too slow for
- # Touch policy on ARM, so disable it for now
- cache_extra_args=
- if [ -d "$PROFILES_CACHE_VAR" ] && [ "$pdir" = "$PROFILES_VAR" ] || [ "$pdir" = "$PROFILES_SNAPPY" ]; then
- cache_extra_args="-O no-expr-simplify"
- fi
-
- # If need to compile everything, then use -n1 with xargs to
- # take advantage of -P. When cache files are in use, omit -n1
- # since it is considerably faster on moderately sized profile
- # sets to give the parser all the profiles to load at once
- n1_args=
- num=`find "$cache_dir" -type f ! -name '.features' | wc -l`
- if [ "$num" = "0" ]; then
- n1_args="-n1"
- fi
-
- (ls -1 "$pdir" | egrep -v '(\.dpkg-(new|old|dist|bak)|~)$' | \
- while read profile; do
- if [ -f "$pdir"/"$profile" ]; then
- echo "$pdir"/"$profile"
- fi
- done) | \
- xargs $n1_args -d"\n" -P$(getconf _NPROCESSORS_ONLN) "$PARSER" "$@" $cache_args $cache_extra_args -- || {
- rc_all="$?"
- # FIXME: when the parser properly handles broken
- # profiles (LP: #1377338), remove this if statement.
- # For now, if the xargs returns with error, just run
- # through everything with -n1. (This could be broken
- # out and refactored, but this is temporary so make it
- # easy to understand and revert)
- if [ "$rc_all" != "0" ]; then
- (ls -1 "$pdir" | \
- egrep -v '(\.dpkg-(new|old|dist|bak)|~)$' | \
- while read profile; do
- if [ -f "$pdir"/"$profile" ]; then
- echo "$pdir"/"$profile"
- fi
- done) | \
- xargs -n1 -d"\n" -P$(getconf _NPROCESSORS_ONLN) "$PARSER" "$@" $cache_args $cache_extra_args -- || {
- rc_all="$?"
- }
- fi
- }
- done
- return $rc_all
-}
-
-load_configured_profiles() {
- clear_cache_if_outdated
- foreach_configured_profile $quiet_arg --write-cache --replace
-}
-
-load_configured_profiles_without_caching() {
- foreach_configured_profile $quiet_arg --replace
-}
-
-recache_profiles() {
- clear_cache
- foreach_configured_profile $quiet_arg --write-cache --skip-kernel-load
-}
-
-configured_profile_names() {
- foreach_configured_profile $quiet_arg -N 2>/dev/null | LC_COLLATE=C sort | grep -v '//'
-}
-
-running_profile_names() {
- # Output a sorted list of loaded profiles, skipping libvirt's
- # dynamically generated files
- cat "$AA_SFS"/profiles | sed -e "s/ (\(enforce\|complain\))$//" | egrep -v '^libvirt-[0-9a-f\-]+$' | LC_COLLATE=C sort | grep -v '//'
-}
-
-unload_profile() {
- echo -n "$1" > "$AA_SFS"/.remove
-}
-
-clear_cache() {
- clear_cache_system
- clear_cache_var
-}
-
-clear_cache_system() {
- find "$PROFILES_CACHE" -maxdepth 1 -type f -print0 | xargs -0 rm -f --
-}
-
-clear_cache_var() {
- find "$PROFILES_CACHE_VAR" -maxdepth 1 -type f -print0 | xargs -0 rm -f --
-}
-
-read_features_dir()
-{
- for f in `ls -A "$1"` ; do
- if [ -f "$1/$f" ] ; then
- read -r KF < "$1/$f" || true
- echo -n "$f {$KF } "
- elif [ -d "$1/$f" ] ; then
- echo -n "$f {"
- KF=`read_features_dir "$1/$f"` || true
- echo -n "$KF} "
- fi
- done
-}
-
-clear_cache_if_outdated() {
- if [ -r "$PROFILES_CACHE"/.features ]; then
- if [ -d "$AA_SFS"/features ]; then
- KERN_FEATURES=`read_features_dir "$AA_SFS"/features`
- else
- read -r KERN_FEATURES < "$AA_SFS"/features
- fi
- CACHE_FEATURES=`tr '\n' ' ' < "$PROFILES_CACHE"/.features`
- if [ "$KERN_FEATURES" != "$CACHE_FEATURES" ]; then
- clear_cache
- fi
- fi
-}
-
-unload_obsolete_profiles() {
- # Currently we must re-parse all the profiles to get policy names. :(
- aa_configured=$(mktemp -t aa-XXXXXX)
- configured_profile_names > "$aa_configured" || true
- aa_loaded=$(mktemp -t aa-XXXXXX)
- running_profile_names > "$aa_loaded" || true
- LC_COLLATE=C comm -2 -3 "$aa_loaded" "$aa_configured" | while read profile ; do
- unload_profile "$profile"
- done
- rm -f "$aa_configured" "$aa_loaded"
-}
-
-# If the system debsum differs from the saved debsum, the new system debsum is
-# saved and non-zero is returned. Returns 0 if the two debsums matched or if
-# the system debsum file does not exist. This can be removed when system image
-# flavors all move to snappy.
-compare_and_save_debsums() {
- pkg="$1"
-
- if [ -n $pkg ] && [ -d "$PROFILES_VAR" ]; then
- sums="/var/lib/dpkg/info/${pkg}.md5sums"
- # store saved md5sums in /var/lib/apparmor/profiles since
- # /var/cache/apparmor might be cleared by apparmor
- saved_sums="${PROFILES_VAR}/.${pkg}.md5sums"
-
- if [ -f "$sums" ] && \
- ! diff -q "$sums" "$saved_sums" 2>&1 >/dev/null ; then
- cp -f "$sums" "$saved_sums"
- return 1
- fi
- fi
-
- return 0
-}
-
-compare_previous_version() {
- installed="/usr/share/snappy/security-policy-version"
- previous="/var/lib/snappy/security-policy-version"
-
- # When just $previous doesn't exist, assume this is a new system with
- # no cache and don't do anything special.
- if [ -f "$installed" ] && [ -f "$previous" ]; then
- pv=`grep '^apparmor/' "$previous" | cut -d ' ' -f 2`
- iv=`grep '^apparmor/' "$installed" | cut -d ' ' -f 2`
- if [ -n "$iv" ] && [ -n "$pv" ] && [ "$iv" != "$pv" ]; then
- # snappy updates $previous elsewhere, so just return
- return 1
- fi
- fi
-
- return 0
-}
-
-# Checks to see if the current container is capable of having internal AppArmor
-# profiles that should be loaded. Callers of this function should have already
-# verified that they're running inside of a container environment with
-# something like `systemd-detect-virt --container`.
-#
-# The only known container environments capable of supporting internal policy
-# are LXD and LXC environment.
-#
-# Returns 0 if the container environment is capable of having its own internal
-# policy and non-zero otherwise.
-#
-# IMPORTANT: This function will return 0 in the case of a non-LXD/non-LXC
-# system container technology being nested inside of a LXD/LXC container that
-# utilized an AppArmor namespace and profile stacking. The reason 0 will be
-# returned is because .ns_stacked will be "yes" and .ns_name will still match
-# "lx[dc]-*" since the nested system container technology will not have set up
-# a new AppArmor profile namespace. This will result in the nested system
-# container's boot process to experience failed policy loads but the boot
-# process should continue without any loss of functionality. This is an
-# unsupported configuration that cannot be properly handled by this function.
-is_container_with_internal_policy() {
- local ns_stacked_path="${AA_SFS}/.ns_stacked"
- local ns_name_path="${AA_SFS}/.ns_name"
- local ns_stacked
- local ns_name
-
- if ! [ -f "$ns_stacked_path" ] || ! [ -f "$ns_name_path" ]; then
- return 1
- fi
-
- read -r ns_stacked < "$ns_stacked_path"
- if [ "$ns_stacked" != "yes" ]; then
- return 1
- fi
-
- # LXD and LXC set up AppArmor namespaces starting with "lxd-" and
- # "lxc-", respectively. Return non-zero for all other namespace
- # identifiers.
- read -r ns_name < "$ns_name_path"
- if [ "${ns_name#lxd-*}" = "$ns_name" ] && \
- [ "${ns_name#lxc-*}" = "$ns_name" ]; then
- return 1
- fi
-
- return 0
-}
--
2.25.1