openrc/sh/openrc-run.sh.in

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#!/bin/sh
# Shell wrapper for openrc-run
# Copyright (c) 2007-2015 The OpenRC Authors.
# See the Authors file at the top-level directory of this distribution and
# https://github.com/OpenRC/openrc/blob/master/AUTHORS
#
# This file is part of OpenRC. It is subject to the license terms in
# the LICENSE file found in the top-level directory of this
# distribution and at https://github.com/OpenRC/openrc/blob/master/LICENSE
# This file may not be copied, modified, propagated, or distributed
# except according to the terms contained in the LICENSE file.
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"
case $RC_SYS in
PREFIX|SYSTEMD-NSPAWN) ;;
*) sourcex -e "@LIBEXECDIR@/sh/rc-cgroup.sh";;
esac
# Support LiveCD foo
if sourcex -e "/sbin/livecd-functions.sh"; then
livecd_read_commandline
fi
if [ -z "$1" -o -z "$2" ]; then
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eerror "$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 $*"
}
want() {
[ -n "$*" ] && echo "want $*"
}
before() {
[ -n "$*" ] && echo "before $*"
}
after() {
[ -n "$*" ] && echo "after $*"
}
provide() {
[ -n "$*" ] && echo "provide $*"
}
keyword() {
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local c x
set -- $*
while [ -n "$*" ]; do
case "$1" in
-containers) x="$(_get_containers)" ;;
!-containers) x="$(_get_containers_remove)" ;;
*) x=$1 ;;
esac
c="${c}${x} "
shift
done
[ -n "$c" ] && echo "keyword $c"
}
# Describe the init script to the user
describe()
{
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if [ -n "$description" ]; then
einfo "$description"
else
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ewarn "No description for $RC_SVCNAME"
fi
local svc= desc=
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for svc in ${extra_commands:-$opts} $extra_started_commands \
$extra_stopped_commands; do
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eval desc=\$description_$svc
if [ -n "$desc" ]; then
einfo "$HILITE$svc$NORMAL: $desc"
else
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ewarn "$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_crashed; then
eerror "status: crashed"
return 32
elif service_started; then
einfo "status: started"
return 0
else
einfo "status: stopped"
return 3
fi
}
# These functions select the appropriate function to call from the
# supervisor modules
default_start()
{
local func=ssd_start
case "$supervisor" in
runit) func=runit_start ;;
s6) func=s6_start ;;
supervise-daemon) func=supervise_start ;;
?*)
ewarn "Invalid supervisor, \"$supervisor\", using start-stop-daemon"
;;
esac
$func
}
default_stop()
{
local func=ssd_stop
case "$supervisor" in
runit) func=runit_stop ;;
s6) func=s6_stop ;;
supervise-daemon) func=supervise_stop ;;
?*)
ewarn "Invalid supervisor, \"$supervisor\", using start-stop-daemon"
;;
esac
$func
}
default_status()
{
local func=ssd_status
case "$supervisor" in
runit) func=runit_status ;;
s6) func=s6_status ;;
supervise-daemon) func=supervise_status ;;
?*)
ewarn "Invalid supervisor, \"$supervisor\", using start-stop-daemon"
;;
esac
$func
}
# Template start / stop / status functions
# package init scripts may override these, but the bodies are as minimal as
# possible, so that the init scripts can creatively wrap default_*
# functions.
start()
{
default_start
}
stop()
{
default_stop
}
status()
{
default_status
}
# Start debug output
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yesno $RC_DEBUG && set -x
# Load configuration settings. First the global ones, then any
# service-specific settings.
sourcex -e "@SYSCONFDIR@/rc.conf"
if [ -d "@SYSCONFDIR@/rc.conf.d" ]; then
for _f in "@SYSCONFDIR@"/rc.conf.d/*.conf; do
sourcex -e "$_f"
done
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/$RC_SVCNAME"
fi
unset _conf_d
# load service supervisor functions
sourcex "@LIBEXECDIR@/sh/runit.sh"
sourcex "@LIBEXECDIR@/sh/s6.sh"
sourcex "@LIBEXECDIR@/sh/start-stop-daemon.sh"
sourcex "@LIBEXECDIR@/sh/supervise-daemon.sh"
# Load our script
sourcex "$RC_SERVICE"
# Set verbose mode
if yesno "${rc_verbose:-$RC_VERBOSE}"; then
EINFO_VERBOSE=yes
export EINFO_VERBOSE
fi
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 [ "$(command -v cgroup_add_service)" = "cgroup_add_service" ]
then
if grep -qs /sys/fs/cgroup /proc/1/mountinfo
then
if [ -d /sys/fs/cgroup -a ! -w /sys/fs/cgroup ]; then
eerror "No permission to apply cgroup settings"
break
fi
fi
cgroup_add_service
fi
[ "$(command -v cgroup_set_limits)" = "cgroup_set_limits" ] &&
cgroup_set_limits
[ "$(command -v cgroup2_set_limits)" = "cgroup2_set_limits" ] &&
[ "$_cmd" = start ] &&
cgroup2_set_limits
break
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fi
done
eval "printf '%s\n' $required_dirs" | while read _d; do
if [ -n "$_d" ] && [ ! -d "$_d" ]; then
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eerror "$RC_SVCNAME: \`$_d' is not a directory"
exit 1
fi
done
[ $? -ne 0 ] && exit 1
unset _d
eval "printf '%s\n' $required_files" | while read _f; do
if [ -n "$_f" ] && [ ! -r "$_f" ]; then
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eerror "$RC_SVCNAME: \`$_f' is not readable"
exit 1
fi
done
[ $? -ne 0 ] && exit 1
unset _f
if [ -n "$opts" ]; then
ewarn "Use of the opts variable is deprecated and will be"
ewarn "removed in the future."
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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} \
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$extra_started_commands $extra_stopped_commands
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do
if [ "$_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
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# 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
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for _cmd in $extra_started_commands; do
if [ "$_cmd" = "$1" ]; then
if verify_boot && ! service_started; then
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eerror "$RC_SVCNAME: cannot \`$1' as it has not been started"
exit 1
fi
fi
done
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# Check to see if we need to be stopped before
# we can run this command
for _cmd in $extra_stopped_commands; do
if [ "$_cmd" = "$1" ]; then
if verify_boot && ! service_stopped; then
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eerror "$RC_SVCNAME: cannot \`$1' as it has not been stopped"
exit 1
fi
fi
done
unset _cmd
case $1 in
start|stop|status) verify_boot;;
esac
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if [ "$(command -v "$1_pre")" = "$1_pre" ]
then
"$1"_pre || exit $?
fi
"$1" || exit $?
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if [ "$(command -v "$1_post")" = "$1_post" ]
then
"$1"_post || exit $?
fi
[ "$(command -v cgroup_cleanup)" = "cgroup_cleanup" ] &&
[ "$1" = "stop" ] &&
yesno "${rc_cgroup_cleanup}" && \
cgroup_cleanup
if [ "$(command -v cgroup2_remove)" = "cgroup2_remove" ]; then
[ "$1" = stop ] || [ -z "${command}" ] &&
cgroup2_remove
fi
shift
continue 2
else
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if [ "$_cmd" = "start" -o "$_cmd" = "stop" ]
then
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shift
continue 2
else
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eerror "$RC_SVCNAME: function \`$1' defined but does not exist"
exit 1
fi
fi
fi
done
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eerror "$RC_SVCNAME: unknown function \`$1'"
exit 1
done
exit 0