lxc-test-apparmor-mount revision 7aff4f43fd84b021db12b2ffed1a4aa1b4cf65ef
17736N/A#!/bin/sh
17736N/A
10656N/A# apparmor_mount: test proper handling of apparmor in kernels
17736N/A# without mount features
10656N/A
10656N/A# These require the ubuntu lxc package to be installed.
10656N/A
10656N/A# This program is free software; you can redistribute it and/or
10656N/A# modify it under the terms of the GNU Lesser General Public
10656N/A# License as published by the Free Software Foundation; either
12605N/A# version 2.1 of the License, or (at your option) any later version.
10656N/A
10656N/A# This library is distributed in the hope that it will be useful,
10656N/A# but WITHOUT ANY WARRANTY; without even the implied warranty of
10656N/A# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10656N/A# Lesser General Public License for more details.
10656N/A
10656N/A# You should have received a copy of the GNU Lesser General Public
12605N/A# License along with this library; if not, write to the Free Software
12605N/A# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
12605N/A
10656N/A# This test assumes an Ubuntu host
10656N/A
12605N/Aset -e
10656N/A
10656N/AFAIL() {
12605N/A echo -n "Failed " >&2
12605N/A echo "$*" >&2
12605N/A exit 1
10656N/A}
10656N/A
12605N/Arun_cmd() {
sudo -i -u $TUSER \
env http_proxy=${http_proxy:-} https_proxy=${https_proxy:-} \
XDG_RUNTIME_DIR=/run/user/$(id -u $TUSER) $*
}
DONE=0
MOUNTSR=/sys/kernel/security/apparmor/features/mount
dnam=`mktemp -d`
cname=`basename $dnam`
cleanup() {
run_cmd lxc-destroy -f -n $cname || true
umount -l $MOUNTSR || true
rmdir $dnam || true
pkill -u $(id -u $TUSER) -9
sed -i '/lxcunpriv/d' /run/lxc/nics /etc/lxc/lxc-usernet
sed -i '/^lxcunpriv:/d' /etc/subuid /etc/subgid
rm -Rf $HDIR /run/user/$(id -u $TUSER)
deluser $TUSER
if [ $DONE -eq 0 ]; then
echo "FAIL"
exit 1
fi
echo "PASS"
}
trap cleanup exit
# Only run on a normally configured ubuntu lxc system
if [ ! -d /sys/class/net/lxcbr0 ]; then
echo "lxcbr0 is not configured."
exit 1
fi
if [ "$(id -u)" != "0" ]; then
echo "ERROR: Must run as root."
exit 1
fi
# This would be much simpler if we could run it as
# root. However, in order to not have the bind mount
# of an empty directory over the securitfs 'mount' directory
# be removed, we need to do this as non-root.
which newuidmap >/dev/null 2>&1 || { echo "'newuidmap' command is missing" >&2; exit 1; }
# create a test user
TUSER=lxcunpriv
HDIR=/home/$TUSER
ARCH=i386
if type dpkg >/dev/null 2>&1; then
ARCH=$(dpkg --print-architecture)
fi
deluser $TUSER && rm -Rf $HDIR || true
useradd $TUSER
mkdir -p $HDIR
echo "$TUSER veth lxcbr0 2" > /etc/lxc/lxc-usernet
sed -i '/^lxcunpriv:/d' /etc/subuid /etc/subgid
usermod -v 910000-919999 -w 910000-919999 $TUSER
mkdir -p $HDIR/.config/lxc/
cat > $HDIR/.config/lxc/default.conf << EOF
lxc.network.type = veth
lxc.network.link = lxcbr0
lxc.id_map = u 0 910000 9999
lxc.id_map = g 0 910000 9999
EOF
chown -R $TUSER: $HDIR
mkdir -p /run/user/$(id -u $TUSER)
chown -R $TUSER: /run/user/$(id -u $TUSER)
cd $HDIR
cgm create all $TUSER
cgm chown all $TUSER $(id -u $TUSER) $(id -g $TUSER)
cgm movepid all $TUSER $$
run_cmd mkdir -p $HDIR/.cache/lxc
[ -d /var/cache/lxc/download ] && \
cp -R /var/cache/lxc/download $HDIR/.cache/lxc && \
chown -R $TUSER: $HDIR/.cache/lxc
run_cmd lxc-create -t download -n $cname -- -d ubuntu -r trusty -a $ARCH
echo "test default confined container"
run_cmd lxc-start -n $cname -d
run_cmd lxc-wait -n $cname -s RUNNING
pid=`run_cmd lxc-info -p -H -n $cname`
profile=`cat /proc/$pid/attr/current`
if [ "x$profile" != "xlxc-container-default (enforce)" ]; then
echo "FAIL: confined container was in profile $profile"
exit 1
fi
run_cmd lxc-stop -n $cname
echo "test regular unconfined container"
echo "lxc.aa_profile = unconfined" >> $HDIR/.local/share/lxc/$cname/config
run_cmd lxc-start -n $cname -d
run_cmd lxc-wait -n $cname -s RUNNING
pid=`run_cmd lxc-info -p -H -n $cname`
profile=`cat /proc/$pid/attr/current`
if [ "x$profile" != "xunconfined" ]; then
echo "FAIL: unconfined container was in profile $profile"
exit 1
fi
run_cmd lxc-stop -n $cname
echo "masking $MOUNTSR"
mount --bind $dnam $MOUNTSR
echo "test default confined container"
sed -i '/aa_profile/d' $HDIR/.local/share/lxc/$cname/config
run_cmd lxc-start -n $cname -d || true
sleep 3
pid=`run_cmd lxc-info -p -H -n $cname` || true
if [ -n "$pid" -a "$pid" != "-1" ]; then
echo "FAIL: confined container started without mount restrictions"
echo "pid was $pid"
exit 1
fi
echo "test regular unconfined container"
echo "lxc.aa_profile = unconfined" >> $HDIR/.local/share/lxc/$cname/config
run_cmd lxc-start -n $cname -d
run_cmd lxc-wait -n $cname -s RUNNING
pid=`run_cmd lxc-info -p -H -n $cname`
if [ "$pid" = "-1" ]; then
echo "FAIL: unconfined container failed to start without mount restrictions"
exit 1
fi
profile=`cat /proc/$pid/attr/current`
if [ "x$profile" != "xunconfined" ]; then
echo "FAIL: confined container was in profile $profile"
exit 1
fi
run_cmd lxc-stop -n $cname
echo "testing override"
sed -i '/aa_profile/d' $HDIR/.local/share/lxc/$cname/config
echo "lxc.aa_allow_incomplete = 1" >> $HDIR/.local/share/lxc/$cname/config
run_cmd lxc-start -n $cname -d
run_cmd lxc-wait -n $cname -s RUNNING
pid=`run_cmd lxc-info -p -H -n $cname`
if [ "$pid" = "-1" ]; then
echo "FAIL: excepted container failed to start without mount restrictions"
exit 1
fi
profile=`cat /proc/$pid/attr/current`
if [ "x$profile" != "xlxc-container-default (enforce)" ]; then
echo "FAIL: confined container was in profile $profile"
exit 1
fi
run_cmd lxc-stop -n $cname
DONE=1