#!/bin/sh
-# Copyright (C) 2006 OpenWrt.org
+# Copyright (C) 2006-2011 OpenWrt.org
# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>
# Usage: service ACTION EXEC ARGS...
#
# Action:
-# -S,--start start EXEC, passing it ARGS as its arguments
-# -K,--stop stop EXEC (send it a $SERVICE_SIG_STOP signal)
-# -R,--reload reload EXEC (send it a $SERVICE_SIG_RELOAD signal)
+# -C check if EXEC is alive
+# -S start EXEC, passing it ARGS as its arguments
+# -K kill EXEC, sending it a TERM signal if not specified otherwise
#
-# Environment variables used:
+# Environment variables exposed:
# SERVICE_DAEMONIZE run EXEC in background
-# SERVICE_WRITE_PID create a pid file and use it
-# SERVICE_USE_PID assume EXEC creates its own pid file and use it
-# SERVICE_PID_FILE pid file to use (default to /var/run/EXEC.pid)
-# SERVICE_SIG_RELOAD signal used for reloading
-# SERVICE_SIG_STOP signal used for stopping
+# SERVICE_WRITE_PID create a pid-file and use it for matching
+# SERVICE_MATCH_EXEC use EXEC command-line for matching (default)
+# SERVICE_MATCH_NAME use EXEC process name for matching
+# SERVICE_USE_PID assume EXEC create its own pid-file and use it for matching
+# SERVICE_NAME process name to use (default to EXEC file part)
+# SERVICE_PID_FILE pid file to use (default to /var/run/$SERVICE_NAME.pid)
+# SERVICE_SIG signal to send when using -K
+# SERVICE_SIG_RELOAD default signal used when reloading
+# SERVICE_SIG_STOP default signal used when stopping
+# SERVICE_STOP_TIME time to wait for a process to stop gracefully before killing it
# SERVICE_UID user EXEC should be run as
# SERVICE_GID group EXEC should be run as
#
SERVICE_QUIET=1
SERVICE_SIG_RELOAD="HUP"
SERVICE_SIG_STOP="TERM"
+SERVICE_STOP_TIME=5
+SERVICE_MATCH_EXEC=1
service() {
local ssd
- local ssd_pid_file
- local ssd_sig
- local ssd_start
+ local exec
+ local name
+ local start
ssd="${SERVICE_DEBUG:+echo }start-stop-daemon${SERVICE_QUIET:+ -q}"
case "$1" in
- -S|--start|start)
- ssd="$ssd -S"
- ssd_start=1
+ -C)
+ ssd="$ssd -K -t"
;;
- -K|--stop|stop)
- ssd="$ssd -K"
- ssd_sig="$SERVICE_SIG_STOP"
+ -S)
+ ssd="$ssd -S${SERVICE_DAEMONIZE:+ -b}${SERVICE_WRITE_PID:+ -m}"
+ start=1
;;
- -R|--reload|reload)
- ssd="$ssd -K"
- ssd_sig="$SERVICE_SIG_RELOAD"
+ -K)
+ ssd="$ssd -K${SERVICE_SIG:+ -s $SERVICE_SIG}"
;;
*)
- echo "ssd: unknow action '$1'" 1>&2
+ echo "service: unknown ACTION '$1'" 1>&2
return 1
esac
shift
- if [ -z "$1" ]; then
- echo "ssd: missing arguments" 1>&2
+ exec="$1"
+ [ -n "$exec" ] || {
+ echo "service: missing argument" 1>&2
return 1
- fi
- ssd="$ssd -x $1"
- if [ -n "$SERVICE_PID_FILE$SERVICE_USE_PID$SERVICE_WRITE_PID" ]; then
- ssd="$ssd -p ${SERVICE_PID_FILE:-/var/run/${1##*/}.pid}"
- fi
+ }
+ [ -x "$exec" ] || {
+ echo "service: file '$exec' is not executable" 1>&2
+ return 1
+ }
+ name="${SERVICE_NAME:-${exec##*/}}"
+ [ -z "$SERVICE_USE_PID$SERVICE_WRITE_PID$SERVICE_PID_FILE" ] \
+ || ssd="$ssd -p ${SERVICE_PID_FILE:-/var/run/$name.pid}"
+ [ -z "$SERVICE_MATCH_NAME" ] || ssd="$ssd -n $name"
ssd="$ssd${SERVICE_UID:+ -c $SERVICE_UID${SERVICE_GID:+:$SERVICE_GID}}"
- if [ -n "$ssd_start" ]; then
- ssd="$ssd${SERVICE_DAEMONIZE:+ -b}${SERVICE_WRITE_PID:+ -m}"
- else
- ssd="$ssd${ssd_sig:+ -s $ssd_sig}"
- fi
+ [ -z "$SERVICE_MATCH_EXEC$start" ] || ssd="$ssd -x $exec"
shift
$ssd${1:+ -- "$@"}
}
+service_check() {
+ service -C "$@"
+}
+
+service_signal() {
+ SERVICE_SIG="${SERVICE_SIG:-USR1}" service -K "$@"
+}
+
service_start() {
service -S "$@"
}
service_stop() {
- service -K "$@"
+ local try
+ SERVICE_SIG="${SERVICE_SIG:-$SERVICE_SIG_STOP}" service -K "$@" || return 1
+ while [ $((try++)) -lt $SERVICE_STOP_TIME ]; do
+ service -C "$@" || return 0
+ sleep 1
+ done
+ SERVICE_SIG="KILL" service -K "$@"
+ sleep 1
+ ! service -C "$@"
}
service_reload() {
- service -R "$@"
+ SERVICE_SIG="${SERVICE_SIG:-$SERVICE_SIG_RELOAD}" service -K "$@"
}
service_kill() {
+ cat 1>&2 << __END_OF_WARNING__
+#
+# WARNING: the 'service_kill' function is now deprecated and might be
+# removed soon. Consider using the other new service_* wrappers instead.
+#
+__END_OF_WARNING__
local name="${1}"
local pid="${2:-$(pidof "$name")}"
local grace="${3:-5}"
}
+group_add() {
+ local name="$1"
+ local gid="$2"
+ local rc
+ [ -f "${IPKG_INSTROOT}/etc/group" ] || return 1
+ [ -n "$IPKG_INSTROOT" ] || lock /var/lock/group
+ echo "${name}:x:${gid}:" >> ${IPKG_INSTROOT}/etc/group
+ rc=$?
+ [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/group
+ return $rc
+}
+
+group_exists() {
+ grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/group
+}
+
+user_add() {
+ local name="${1}"
+ local uid="${2}"
+ local gid="${3:-$2}"
+ local desc="${4:-$1}"
+ local home="${5:-/var/run/$1}"
+ local shell="${6:-/bin/false}"
+ local rc
+ [ -f "${IPKG_INSTROOT}/etc/passwd" ] || return 1
+ [ -n "$IPKG_INSTROOT" ] || lock /var/lock/passwd
+ echo "${name}:x:${uid}:${gid}:${desc}:${home}:${shell}" >> ${IPKG_INSTROOT}/etc/passwd
+ rc=$?
+ [ -n "$IPKG_INSTROOT" ] || lock -u /var/lock/passwd
+ return $rc
+}
+
+user_exists() {
+ grep -qs "^${1}:" ${IPKG_INSTROOT}/etc/passwd
+}
+
+
pi_include() {
if [ -f "/tmp/overlay/$1" ]; then
. "/tmp/overlay/$1"
projects / openwrt.git / blobdiff