unpriv-test

#!/bin/bash

# Authors:
# Serge Hallyn <serge.hallyn@ubuntu.com>
#
# This is based on the lxc-test-unpriv from the lxc testsuite at
# linuxcontainers.org / git://github.com/lxc/lxc

# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.

# This library 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
# Lesser General Public License for more details.

# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

# This test assumes an Ubuntu host.  It will create an unprivileged
# user who will create a unprivileged container.  Inside that container
# it will install and start cgmanager, and run a full testsuite
# in addition to an extra test for correct uid translation in
# listkeys

if [ $(id -u) -ne 0 ]; then
	echo "ERROR: Must run as root."
	exit 1
fi
which newuidmap >/dev/null 2>&1 || { echo "'newuidmap' command is missing" >&2; exit 1; }

which lxc-create >/dev/null 2>&1 || { echo "'lxc' package is missing" >&2; exit 1; }

use_ppa=0
if [ $# -eq 1 -a $1 = "useppa" ]; then
	use_ppa=1
fi

DONE=0
cleanup() {
	cd /

	run_cmd lxc-stop -n c1 -k || 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"
}

run_cmd() {
	sudo -i -u $TUSER \
	    env http_proxy=${http_proxy:-} https_proxy=${https_proxy:-} \
	        SUDO_USER="" \
	        XDG_RUNTIME_DIR=/run/user/$(id -u $TUSER) $*
}

# create a test user
TUSER=lxcunpriv
HDIR=/home/$TUSER

ARCH=i386
if type dpkg >/dev/null 2>&1; then
	ARCH=$(dpkg --print-architecture)
fi

trap cleanup EXIT SIGHUP SIGINT SIGTERM
set -eu

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
lxc.aa_profile = lxc-container-default-with-nesting
lxc.mount.auto = cgroup:mixed
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 $$

# Copy the download template cache if available
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 c1 -- -d ubuntu -r utopic -a $ARCH
run_cmd lxc-start -n c1 -d

run_cmd lxc-wait -n c1 -s RUNNING

ip=''
while [ -z "$ip" ]; do
	ip=$(run_cmd lxc-info -n c1 -i -H)
done

run_cmd lxc-attach -n c1 -- ping -c 1 google.com
run_cmd lxc-attach -n c1 -- apt-get update
if [ $use_ppa -eq 1 ]; then
	run_cmd lxc-attach -n c1 -- apt-get -y install software-properties-common
	run_cmd lxc-attach -n c1 -- add-apt-repository -y ppa:serge-hallyn/cgmanager
	run_cmd lxc-attach -n c1 -- apt-get update
fi
run_cmd lxc-attach -n c1 -- apt-get -y install cgmanager cgmanager-tests
run_cmd lxc-attach -n c1 -- cat /proc/self/cgroup
run_cmd lxc-attach -n c1 -- /usr/share/cgmanager/tests/runtests.sh
run_cmd lxc-attach -n c1 -- cgm create memory xxx
output=$(run_cmd lxc-attach -n c1 -- cgm listkeys memory)
output2=$(run_cmd lxc-attach -n c1 -- cgm listkeys memory xxx)
id1=$(echo "$output" | awk '/^tasks/ { print $2 }')
id2=$(echo "$output2" | awk '/^tasks/ { print $2 }')
if [ "$id1" != "4294967295" ]; then
	echo "listkeys did not properly shift nobody id"
	false
fi
if [ "$id2" != "0" ]; then
	echo "listkeys did not properly shift 0 id"
	false
fi

run_cmd lxc-stop -n c1

DONE=1