openrc/sh/runscript.sh.in
William Hubbs 8c7ea4e9e8 runscript.sh: add chroot support
This adds support for a chroot variable which will be passed to the
start-stop-daemon --chroot switch to runscript.sh when starting a
daemon. This also needs to be saved so it can be used in locating the
pid file when stopping the daemon.

X-Gentoo-Bug: 524388
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=524388
2014-10-20 15:44:19 -05:00

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#!@SHELL@
# Shell wrapper for runscript
# Copyright (c) 2007-2009 Roy Marples <roy@marples.name>
# Released under the 2-clause BSD license.
verify_boot()
{
if [ ! -e ${RC_SVCDIR}/softlevel ]; then
eerror "You are attempting to run an openrc service on a"
eerror "system which openrc did not boot."
eerror "You may be inside a chroot or you may have used"
eerror "another initialization system to boot this system."
eerror "In this situation, you will get unpredictable results!"
eerror
eerror "If you really want to do this, issue the following command:"
eerror "touch ${RC_SVCDIR}/softlevel"
exit 1
fi
return 0
}
sourcex()
{
if [ "$1" = "-e" ]; then
shift
[ -e "$1" ] || return 1
fi
if ! . "$1"; then
eerror "$RC_SVCNAME: error loading $1"
exit 1
fi
}
sourcex "@LIBEXECDIR@/sh/functions.sh"
sourcex "@LIBEXECDIR@/sh/rc-functions.sh"
[ "$RC_SYS" != "PREFIX" ] && sourcex -e "@LIBEXECDIR@/sh/rc-cgroup.sh"
# Support LiveCD foo
if sourcex -e "/sbin/livecd-functions.sh"; then
livecd_read_commandline
fi
if [ -z "$1" -o -z "$2" ]; then
eerror "$RC_SVCNAME: not enough arguments"
exit 1
fi
# So daemons know where to recall us if needed
RC_SERVICE="$1" ; export RC_SERVICE
shift
# Compat
SVCNAME=$RC_SVCNAME ; export SVCNAME
# Dependency function
config() {
[ -n "$*" ] && echo "config $*"
}
need() {
[ -n "$*" ] && echo "need $*"
}
use() {
[ -n "$*" ] && echo "use $*"
}
before() {
[ -n "$*" ] && echo "before $*"
}
after() {
[ -n "$*" ] && echo "after $*"
}
provide() {
[ -n "$*" ] && echo "provide $*"
}
keyword() {
[ -n "$*" ] && echo "keyword $*"
}
# Describe the init script to the user
describe()
{
if [ -n "$description" ]; then
einfo "$description"
else
ewarn "No description for $RC_SVCNAME"
fi
local svc= desc=
for svc in ${extra_commands:-$opts} $extra_started_commands \
$extra_stopped_commands; do
eval desc=\$description_$svc
if [ -n "$desc" ]; then
einfo "$HILITE$svc$NORMAL: $desc"
else
ewarn "$HILITE$svc$NORMAL: no description"
fi
done
}
# Report status
_status()
{
if service_stopping; then
ewarn "status: stopping"
return 4
elif service_starting; then
ewarn "status: starting"
return 8
elif service_inactive; then
ewarn "status: inactive"
return 16
elif service_started; then
if service_crashed; then
eerror "status: crashed"
return 32
fi
einfo "status: started"
return 0
else
einfo "status: stopped"
return 3
fi
}
# Template start / stop / status functions
start()
{
[ -n "$command" ] || return 0
local _background=
ebegin "Starting ${name:-$RC_SVCNAME}"
if yesno "${command_background}"; then
if [ -z "${pidfile}" ]; then
eend 1 "command_background option used but no pidfile specified"
return 1
fi
_background="--background --make-pidfile"
fi
if yesno "$start_inactive"; then
local _inactive=false
service_inactive && _inactive=true
mark_service_inactive
fi
eval start-stop-daemon --start \
--exec $command \
${chroot:+--chroot} $chroot \
${procname:+--name} $procname \
${pidfile:+--pidfile} $pidfile \
$_background $start_stop_daemon_args \
-- $command_args
if eend $? "Failed to start $RC_SVCNAME"; then
service_set_value "command" "${command}"
[ -n "${chroot}" ] && service_set_value "chroot" "${chroot}"
[ -n "${pidfile}" ] && service_set_value "pidfile" "${pidfile}"
[ -n "${procname}" ] && service_set_value "procname" "${procname}"
return 0
fi
if yesno "$start_inactive"; then
if ! $_inactive; then
mark_service_stopped
fi
fi
return 1
}
stop()
{
local startcommand="$(service_get_value "command")"
local startchroot="$(service_get_value "chroot")"
local startpidfile="$(service_get_value "pidfile")"
local startprocname="$(service_get_value "procname")"
command="${startcommand:-$command}"
chroot="${startchroot:-$chroot}"
pidfile="${startpidfile:-$pidfile}"
procname="${startprocname:-$procname}"
[ -n "$command" -o -n "$procname" -o -n "$pidfile" ] || return 0
ebegin "Stopping ${name:-$RC_SVCNAME}"
start-stop-daemon --stop \
${retry:+--retry} $retry \
${command:+--exec} $command \
${procname:+--name} $procname \
${pidfile:+--pidfile} $chroot$pidfile \
${stopsig:+--signal} $stopsig
eend $? "Failed to stop $RC_SVCNAME"
}
status()
{
_status
}
yesno $RC_DEBUG && set -x
if yesno "${rc_verbose:-$RC_VERBOSE}"; then
EINFO_VERBOSE=yes
export EINFO_VERBOSE
fi
_conf_d=${RC_SERVICE%/*}/../conf.d
# If we're net.eth0 or openvpn.work then load net or openvpn config
_c=${RC_SVCNAME%%.*}
if [ -n "$_c" -a "$_c" != "$RC_SVCNAME" ]; then
if ! sourcex -e "$_conf_d/$_c.$RC_RUNLEVEL"; then
sourcex -e "$_conf_d/$_c"
fi
fi
unset _c
# Overlay with our specific config
if ! sourcex -e "$_conf_d/$RC_SVCNAME.$RC_RUNLEVEL"; then
sourcex -e "$_conf_d/$RC_SVCNAME"
fi
unset _conf_d
# Load any system overrides
sourcex -e "@SYSCONFDIR@/rc.conf"
for _cmd; do
if [ "$_cmd" != status -a "$_cmd" != describe ]; then
# Apply any ulimit defined
[ -n "${rc_ulimit:-$RC_ULIMIT}" ] && \
ulimit ${rc_ulimit:-$RC_ULIMIT}
# Apply cgroups settings if defined
if [ "$(command -v cgroup_add_service)" = \
"cgroup_add_service" ]
then
if [ -d /sys/fs/cgroup -a ! -w /sys/fs/cgroup ]; then
eerror "No permission to apply cgroup settings"
break
fi
cgroup_add_service /sys/fs/cgroup/openrc
cgroup_add_service /sys/fs/cgroup/systemd/system
fi
[ "$(command -v cgroup_set_limits)" = \
"cgroup_set_limits" ] && \
cgroup_set_limits
break
fi
done
# Load our script
sourcex "$RC_SERVICE"
for _d in $required_dirs; do
if [ ! -d $_d ]; then
eerror "$RC_SVCNAME: \`$_d' is not a directory"
exit 1
fi
done
unset _d
for _f in $required_files; do
if [ ! -r $_f ]; then
eerror "$RC_SVCNAME: \`$_f' is not readable"
exit 1
fi
done
unset _f
if [ -n "$opts" ]; then
ewarn "Use of the opts variable is deprecated and will be"
ewarn "removed in the future."
ewarn "Please use extra_commands, extra_started_commands or extra_stopped_commands."
fi
while [ -n "$1" ]; do
# Special case depend
if [ "$1" = depend ]; then
shift
# Enter the dir of the init script to fix the globbing
# bug 412677
cd ${RC_SERVICE%/*}
_depend
cd /
continue
fi
# See if we have the required function and run it
for _cmd in describe start stop status ${extra_commands:-$opts} \
$extra_started_commands $extra_stopped_commands
do
if [ "$_cmd" = "$1" ]; then
if [ "$(command -v "$1")" = "$1" ]; then
# If we're in the background, we may wish to
# fake some commands. We do this so we can
# "start" ourselves from inactive which then
# triggers other services to start which
# depend on us.
# A good example of this is openvpn.
if yesno $IN_BACKGROUND; then
for _cmd in $in_background_fake; do
if [ "$_cmd" = "$1" ]; then
shift
continue 3
fi
done
fi
# Check to see if we need to be started before
# we can run this command
for _cmd in $extra_started_commands; do
if [ "$_cmd" = "$1" ]; then
if verify_boot && ! service_started; then
eerror "$RC_SVCNAME: cannot \`$1' as it has not been started"
exit 1
fi
fi
done
# Check to see if we need to be stopped before
# we can run this command
for _cmd in $extra_stopped_commands; do
if [ "$_cmd" = "$1" ]; then
if verify_boot && ! service_stopped; then
eerror "$RC_SVCNAME: cannot \`$1' as it has not been stopped"
exit 1
fi
fi
done
unset _cmd
case $1 in
start|stop|status) verify_boot;;
esac
if [ "$(command -v "$1_pre")" = "$1_pre" ]
then
"$1"_pre || exit $?
fi
"$1" || exit $?
if [ "$(command -v "$1_post")" = "$1_post" ]
then
"$1"_post || exit $?
fi
[ "$(command -v cgroup_cleanup)" = "cgroup_cleanup" -a \
"$1" = "stop" ] && \
yesno "${rc_cgroup_cleanup}" && \
cgroup_cleanup
shift
continue 2
else
if [ "$_cmd" = "start" -o "$_cmd" = "stop" ]
then
shift
continue 2
else
eerror "$RC_SVCNAME: function \`$1' defined but does not exist"
exit 1
fi
fi
fi
done
eerror "$RC_SVCNAME: unknown function \`$1'"
exit 1
done
exit 0