33d3f33b3c
The want dependency is similar to the use dependency. If a service script, for example called service1, adds "want service2" to its depend function, OpenRC will attempt to start service2, if it exists on the system, when service1 is started. However, service1 will start regardless of the status of service2. X-Gentoo-Bug: 406021 X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=406021
345 lines
7.4 KiB
Bash
345 lines
7.4 KiB
Bash
#!@SHELL@
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# Shell wrapper for openrc-run
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# Copyright (c) 2007-2009 Roy Marples <roy@marples.name>
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# Released under the 2-clause BSD license.
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verify_boot()
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{
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if [ ! -e ${RC_SVCDIR}/softlevel ]; then
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eerror "You are attempting to run an openrc service on a"
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eerror "system which openrc did not boot."
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eerror "You may be inside a chroot or you may have used"
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eerror "another initialization system to boot this system."
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eerror "In this situation, you will get unpredictable results!"
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eerror
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eerror "If you really want to do this, issue the following command:"
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eerror "touch ${RC_SVCDIR}/softlevel"
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exit 1
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fi
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return 0
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}
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sourcex()
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{
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if [ "$1" = "-e" ]; then
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shift
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[ -e "$1" ] || return 1
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fi
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if ! . "$1"; then
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eerror "$RC_SVCNAME: error loading $1"
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exit 1
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fi
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}
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sourcex "@LIBEXECDIR@/sh/functions.sh"
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sourcex "@LIBEXECDIR@/sh/rc-functions.sh"
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case $RC_SYS in
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PREFIX|SYSTEMD-NSPAWN) ;;
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*) sourcex -e "@LIBEXECDIR@/sh/rc-cgroup.sh";;
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esac
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# Support LiveCD foo
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if sourcex -e "/sbin/livecd-functions.sh"; then
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livecd_read_commandline
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fi
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if [ -z "$1" -o -z "$2" ]; then
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eerror "$RC_SVCNAME: not enough arguments"
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exit 1
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fi
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# So daemons know where to recall us if needed
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RC_SERVICE="$1" ; export RC_SERVICE
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shift
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# Compat
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SVCNAME=$RC_SVCNAME ; export SVCNAME
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# Dependency function
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config() {
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[ -n "$*" ] && echo "config $*"
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}
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need() {
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[ -n "$*" ] && echo "need $*"
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}
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use() {
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[ -n "$*" ] && echo "use $*"
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}
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want() {
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[ -n "$*" ] && echo "want $*"
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}
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before() {
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[ -n "$*" ] && echo "before $*"
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}
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after() {
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[ -n "$*" ] && echo "after $*"
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}
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provide() {
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[ -n "$*" ] && echo "provide $*"
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}
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keyword() {
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[ -n "$*" ] && echo "keyword $*"
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}
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# Describe the init script to the user
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describe()
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{
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if [ -n "$description" ]; then
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einfo "$description"
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else
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ewarn "No description for $RC_SVCNAME"
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fi
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local svc= desc=
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for svc in ${extra_commands:-$opts} $extra_started_commands \
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$extra_stopped_commands; do
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eval desc=\$description_$svc
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if [ -n "$desc" ]; then
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einfo "$HILITE$svc$NORMAL: $desc"
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else
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ewarn "$HILITE$svc$NORMAL: no description"
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fi
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done
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}
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# Report status
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_status()
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{
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if service_stopping; then
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ewarn "status: stopping"
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return 4
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elif service_starting; then
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ewarn "status: starting"
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return 8
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elif service_inactive; then
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ewarn "status: inactive"
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return 16
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elif service_started; then
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if service_crashed; then
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eerror "status: crashed"
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return 32
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fi
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einfo "status: started"
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return 0
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else
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einfo "status: stopped"
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return 3
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fi
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}
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# Template start / stop / status functions
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# These functions select the appropriate function to call from the
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# supervisor modules
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start()
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{
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local func=ssd_start
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case "$supervisor" in
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s6) func=s6_start ;;
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?*)
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ewarn "Invalid supervisor, \"$supervisor\", using start-stop-daemon"
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;;
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esac
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$func
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}
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stop()
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{
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local func=ssd_stop
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case "$supervisor" in
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s6) func=s6_stop ;;
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?*)
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ewarn "Invalid supervisor, \"$supervisor\", using start-stop-daemon"
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;;
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esac
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$func
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}
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status()
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{
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local func=ssd_status
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case "$supervisor" in
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s6) func=s6_status ;;
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?*)
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ewarn "Invalid supervisor, \"$supervisor\", using start-stop-daemon"
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;;
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esac
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$func
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}
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yesno $RC_DEBUG && set -x
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_conf_d=${RC_SERVICE%/*}/../conf.d
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# If we're net.eth0 or openvpn.work then load net or openvpn config
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_c=${RC_SVCNAME%%.*}
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if [ -n "$_c" -a "$_c" != "$RC_SVCNAME" ]; then
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if ! sourcex -e "$_conf_d/$_c.$RC_RUNLEVEL"; then
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sourcex -e "$_conf_d/$_c"
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fi
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fi
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unset _c
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# Overlay with our specific config
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if ! sourcex -e "$_conf_d/$RC_SVCNAME.$RC_RUNLEVEL"; then
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sourcex -e "$_conf_d/$RC_SVCNAME"
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fi
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unset _conf_d
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# Load any system overrides
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sourcex -e "@SYSCONFDIR@/rc.conf"
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if [ -d "@SYSCONFDIR@/rc.conf.d" ]; then
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for _f in "@SYSCONFDIR@"/rc.conf.d/*.conf; do
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sourcex -e "$_f"
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done
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fi
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# load service supervisor functions
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sourcex "@LIBEXECDIR@/sh/s6.sh"
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sourcex "@LIBEXECDIR@/sh/start-stop-daemon.sh"
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# Set verbose mode
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if yesno "${rc_verbose:-$RC_VERBOSE}"; then
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EINFO_VERBOSE=yes
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export EINFO_VERBOSE
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fi
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for _cmd; do
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if [ "$_cmd" != status -a "$_cmd" != describe ]; then
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# Apply any ulimit defined
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[ -n "${rc_ulimit:-$RC_ULIMIT}" ] && \
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ulimit ${rc_ulimit:-$RC_ULIMIT}
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# Apply cgroups settings if defined
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if [ "$(command -v cgroup_add_service)" = \
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"cgroup_add_service" ]
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then
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if [ -d /sys/fs/cgroup -a ! -w /sys/fs/cgroup ]; then
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eerror "No permission to apply cgroup settings"
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break
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fi
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cgroup_add_service /sys/fs/cgroup/openrc
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cgroup_add_service /sys/fs/cgroup/systemd/system
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fi
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[ "$(command -v cgroup_set_limits)" = \
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"cgroup_set_limits" ] && \
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cgroup_set_limits
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break
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fi
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done
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# Load our script
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sourcex "$RC_SERVICE"
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eval "printf '%s\n' $required_dirs" | while read _d; do
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if [ -n "$_d" ] && [ ! -d "$_d" ]; then
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eerror "$RC_SVCNAME: \`$_d' is not a directory"
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exit 1
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fi
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done
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[ $? -ne 0 ] && exit 1
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unset _d
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eval "printf '%s\n' $required_files" | while read _f; do
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if [ -n "$_f" ] && [ ! -r "$_f" ]; then
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eerror "$RC_SVCNAME: \`$_f' is not readable"
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exit 1
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fi
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done
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[ $? -ne 0 ] && exit 1
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unset _f
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if [ -n "$opts" ]; then
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ewarn "Use of the opts variable is deprecated and will be"
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ewarn "removed in the future."
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ewarn "Please use extra_commands, extra_started_commands or extra_stopped_commands."
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fi
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while [ -n "$1" ]; do
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# Special case depend
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if [ "$1" = depend ]; then
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shift
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# Enter the dir of the init script to fix the globbing
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# bug 412677
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cd ${RC_SERVICE%/*}
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_depend
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cd /
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continue
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fi
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# See if we have the required function and run it
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for _cmd in describe start stop status ${extra_commands:-$opts} \
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$extra_started_commands $extra_stopped_commands
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do
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if [ "$_cmd" = "$1" ]; then
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if [ "$(command -v "$1")" = "$1" ]; then
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# If we're in the background, we may wish to
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# fake some commands. We do this so we can
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# "start" ourselves from inactive which then
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# triggers other services to start which
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# depend on us.
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# A good example of this is openvpn.
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if yesno $IN_BACKGROUND; then
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for _cmd in $in_background_fake; do
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if [ "$_cmd" = "$1" ]; then
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shift
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continue 3
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fi
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done
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fi
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# Check to see if we need to be started before
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# we can run this command
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for _cmd in $extra_started_commands; do
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if [ "$_cmd" = "$1" ]; then
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if verify_boot && ! service_started; then
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eerror "$RC_SVCNAME: cannot \`$1' as it has not been started"
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exit 1
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fi
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fi
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done
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# Check to see if we need to be stopped before
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# we can run this command
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for _cmd in $extra_stopped_commands; do
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if [ "$_cmd" = "$1" ]; then
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if verify_boot && ! service_stopped; then
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eerror "$RC_SVCNAME: cannot \`$1' as it has not been stopped"
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exit 1
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fi
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fi
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done
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unset _cmd
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case $1 in
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start|stop|status) verify_boot;;
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esac
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if [ "$(command -v "$1_pre")" = "$1_pre" ]
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then
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"$1"_pre || exit $?
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fi
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"$1" || exit $?
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if [ "$(command -v "$1_post")" = "$1_post" ]
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then
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"$1"_post || exit $?
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fi
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[ "$(command -v cgroup_cleanup)" = "cgroup_cleanup" -a \
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"$1" = "stop" ] && \
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yesno "${rc_cgroup_cleanup}" && \
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cgroup_cleanup
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shift
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continue 2
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else
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if [ "$_cmd" = "start" -o "$_cmd" = "stop" ]
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then
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shift
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continue 2
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else
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eerror "$RC_SVCNAME: function \`$1' defined but does not exist"
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exit 1
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fi
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fi
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fi
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done
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eerror "$RC_SVCNAME: unknown function \`$1'"
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exit 1
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done
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exit 0
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