/usr/bin/lxc-setuid is in lxc 0.7.5-3ubuntu52.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | #!/bin/bash
#
# lxc: linux Container library
# Authors:
# Daniel Lezcano <daniel.lezcano@free.fr>
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# This script allows to set or remove the setuid execution bit on the lxc tools.
# When the capabilities are set, a non root user can manage the containers.
#
usage()
{
echo "lxc-setuid [-d] : set or remove setuid on the lxc tools"
}
setuid()
{
if [ "$1" = "-r" ]; then
chmod -s $2
else
chmod +s $1
fi
}
lxc_setuid()
{
setuid /usr/bin/lxc-attach
setuid /usr/bin/lxc-create
setuid /usr/bin/lxc-execute
setuid /usr/bin/lxc-start
setuid /usr/bin/lxc-restart
setuid /usr/bin/lxc-unshare
setuid /usr/bin/lxc-netstat
setuid /usr/bin/lxc-checkpoint
setuid /usr/lib/lxc/lxc-init
test -e /var/lib/lxc || mkdir -p /var/lib/lxc
chmod 0777 /var/lib/lxc
}
lxc_dropuid()
{
setuid -r /usr/bin/lxc-attach
setuid -r /usr/bin/lxc-create
setuid -r /usr/bin/lxc-execute
setuid -r /usr/bin/lxc-start
setuid -r /usr/bin/lxc-restart
setuid -r /usr/bin/lxc-unshare
setuid -r /usr/bin/lxc-netstat
setuid -r /usr/bin/lxc-checkpoint
setuid -r /usr/lib/lxc/lxc-init
chmod 0755 /var/lib/lxc
}
if [ "$(id -u)" != "0" ]; then
echo "You have to be root to run this script"
exit 1
fi
if [ $? != 0 ]; then
usage
exit 1
fi
set -- $(getopt dh "$@")
for i in "$@"; do
case "$1" in
-d)
LXC_DROP_CAPS="yes"
shift
;;
-h)
usage
exit 0
;;
--)
shift
break
;;
*)
usage
exit 1
;;
esac
done;
if [ -z "$LXC_DROP_CAPS" ]; then
lxc_setuid
else
lxc_dropuid
fi
|