85 lines
2.8 KiB
Bash
Executable File
85 lines
2.8 KiB
Bash
Executable File
#!/bin/sh
|
|
# Copyright © 2007 Kees Cook <kees@outflux.net>
|
|
# Copyright © 2007-2009 Roger Leigh <rleigh@codelibre.net>
|
|
#
|
|
# schroot is free software: you can redistribute it and/or modify it
|
|
# under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# schroot 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, see
|
|
# <http://www.gnu.org/licenses/>.
|
|
#
|
|
#####################################################################
|
|
|
|
set -e
|
|
|
|
. "$SETUP_DATA_DIR/common-data"
|
|
. "$SETUP_DATA_DIR/common-functions"
|
|
. "$SETUP_DATA_DIR/common-config"
|
|
|
|
# Wrapper around kill command. Turns errors into
|
|
# warnings when running in verbose mode, otherwise
|
|
# it ignores them.
|
|
# args: parameters for kill
|
|
kill_proc()
|
|
{
|
|
if ! kill "$@" 2>/dev/null; then
|
|
info "kill $@ failed: process already terminated?"
|
|
fi
|
|
}
|
|
|
|
# Kill all processes that were run from within the chroot environment
|
|
# $1: mount base location
|
|
do_kill_all()
|
|
{
|
|
chroot_path=$(realpath "$1")
|
|
if [ -z "$1" ]; then
|
|
fatal "No path for finding stray processes: not reaping processes in chroot"
|
|
fi
|
|
|
|
info "Killing processes run inside $1"
|
|
ls /proc | grep -E '^[[:digit:]]+$' |
|
|
while read pid; do
|
|
# Check if process root are the same device/inode as chroot
|
|
# root (for efficiency)
|
|
if [ /proc/"$pid"/root -ef "$chroot_path" ]; then
|
|
# Check if process and chroot root are the same (may be
|
|
# different even if device/inode match).
|
|
root=$(readlink --canonicalize /proc/"$pid"/root || true)
|
|
if [ "$root" = "$chroot_path" ]; then
|
|
exe=$(readlink /proc/"$pid"/exe || true)
|
|
info "Killing left-over pid $pid (${exe##$1})"
|
|
info " Sending SIGTERM to pid $pid"
|
|
|
|
kill_proc -TERM "$pid"
|
|
|
|
count=0
|
|
max=5
|
|
while [ -d /proc/"$pid" ]; do
|
|
count=$(( $count + 1 ))
|
|
info " Waiting for pid $pid to shut down... ($count/$max)"
|
|
sleep 1
|
|
# Wait for $max seconds for process to die before -9'ing it
|
|
if [ "$count" -eq "$max" ]; then
|
|
info " Sending SIGKILL to pid $pid"
|
|
kill_proc -KILL "$pid"
|
|
sleep 1
|
|
break
|
|
fi
|
|
done
|
|
fi
|
|
fi
|
|
done
|
|
}
|
|
|
|
if [ $STAGE = "setup-recover" ] || [ $STAGE = "setup-stop" ]; then
|
|
do_kill_all "$CHROOT_PATH"
|
|
fi
|