usability and stability patch from package maintainer Johannes 5 Joemann

git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@1577 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 333 insertions, 0 deletions

diff --git a/package/quagga/files/quagga.init b/package/quagga/files/quagga.init
new file mode 100644
index 000000000..01f8d7137
--- /dev/null
+++ b/package/quagga/files/quagga.init
@@ -0,0 +1,333 @@
+#!/bin/sh
+#
+# quagga	Starts/stops quagga daemons and watchquagga.
+#		Create a daemon.conf file to have that routing daemon
+#		started/stopped automagically when using this script
+#		without any daemon names as args.
+#		If watchquagga is available, it will also be
+#		started/stopped if the script is called without
+#		any daemon names.
+#
+
+ME=$(basename $0)
+
+usage() {
+	echo "Usage: ${ME} {start|stop|restart} [daemon ...]"
+	exit 2
+}
+
+if [ -z "$1" ]
+then
+	usage
+else
+	COMMAND=$1
+fi
+shift
+ARG_DAEMONS=$*
+BINDIR=/usr/sbin
+CONFDIR=/etc/quagga
+STATEDIR=/var/run/quagga
+DAEMONS="zebra ripd ripngd ospfd ospf6d bgpd"
+DAEMON_FLAGS=-d
+WATCHQUAGGA_FLAGS="-d -z -T 60 -R"
+WATCHQUAGGA_CMD="$0 watchrestart"
+if [ ${COMMAND} != "watchrestart" ]
+then
+	DAEMONS="${DAEMONS} watchquagga"
+fi
+DAEMONS_STARTSEQ=${DAEMONS}
+
+reverse()
+{
+	local revlist r
+        revlist=
+        for r
+	do
+                revlist="$r $revlist"
+        done
+        echo $revlist
+}
+
+DAEMONS_STOPSEQ=$(reverse ${DAEMONS_STARTSEQ})
+
+#pidof() {
+#	ps ax | awk 'match($5, "(^|/)'"$1"'$") > 0 { printf " %s", $1 }'
+#}
+
+quit() {
+	echo "${ME}: $1"
+	exit 0
+}
+
+die() {
+	echo "${ME}: $1"
+	exit 1
+}
+
+is_in() {
+	local i
+	for i in $2
+	do
+		[ "$1" = "$i" ] && return 0
+	done
+	return 1
+}
+
+select_subset() {
+	local unknown i j
+	unknown=
+	RESULT=
+	for i in $1
+	do
+		is_in $i "$2" || unknown="$unknown $i"
+	done
+	if [ -n "$unknown" ]
+	then
+		RESULT=$unknown
+		return 1
+	else
+		for j in $2
+		do
+			is_in $j "$1" && RESULT="$RESULT $j"
+		done
+		return 0
+	fi
+}
+
+# check command
+
+case ${COMMAND}
+in
+	start|stop|restart)
+		;;
+	watchrestart)
+		if [ -n "$ARG_DAEMONS" ]
+		then
+			echo "${ME}: watchrestart mode is only for use by watchquagga"
+			exit 2
+		fi
+		;;
+	*)
+		usage
+		;;
+esac
+
+# select daemons to start
+
+case ${COMMAND}
+in
+	start|restart|watchrestart)
+		START_DAEMONS=
+		for d in ${DAEMONS_STARTSEQ}
+		do
+			[ -x "${BINDIR}/${d}" -a -f "${CONFDIR}/${d}.conf" ] \
+			&& START_DAEMONS="${START_DAEMONS}${d} "
+		done
+		WATCHQUAGGA_DAEMONS=${START_DAEMONS}
+		if is_in watchquagga "${DAEMONS_STARTSEQ}"
+		then
+			START_DAEMONS="${START_DAEMONS} watchquagga"
+		fi
+		if [ -n "${ARG_DAEMONS}" ]
+		then
+			if select_subset "${ARG_DAEMONS}" "${DAEMONS}"
+			then
+				if select_subset "${ARG_DAEMONS}" "${START_DAEMONS}"
+				then
+					START_DAEMONS=${RESULT}
+				else
+					die "these daemons are not startable:${RESULT}."
+				fi
+			else
+				die "unknown daemons:${RESULT}; choose from: ${DAEMONS}."
+			fi
+		fi
+		;;
+esac
+
+# select daemons to stop
+
+case ${COMMAND}
+in
+	stop|restart|watchrestart)
+		STOP_DAEMONS=${DAEMONS_STOPSEQ}
+		if [ -n "${ARG_DAEMONS}" ]
+		then
+			if select_subset "${ARG_DAEMONS}" "${STOP_DAEMONS}"
+			then
+				STOP_DAEMONS=${RESULT}
+			else
+				die "unknown daemons:${RESULT}; choose from: ${DAEMONS}."
+			fi
+		fi
+		stop_daemons=
+		for d in ${STOP_DAEMONS}
+		do
+			pidfile=${STATEDIR}/${d}.pid
+			if [ -f "${pidfile}" -o -n "$(pidof ${d})" ]
+			then
+				stop_daemons="${stop_daemons}${d} "
+			elif [ -n "${ARG_DAEMONS}" ]
+			then
+				echo "${ME}: found no ${d} process running."
+			fi
+		done
+		STOP_DAEMONS=${stop_daemons}
+		;;
+esac
+
+# stop daemons
+
+for d in $STOP_DAEMONS
+do
+	echo -n "${ME}: Stopping ${d} ... "
+	pidfile=${STATEDIR}/${d}.pid
+	if [ -f "${pidfile}" ]
+	then
+		file_pid=$(cat ${pidfile})
+		if [ -z "${file_pid}" ]
+		then
+			echo -n "no pid file entry found ... "
+		fi
+	else
+		file_pid=
+		echo -n "no pid file found ... "
+	fi
+	proc_pid=$(pidof ${d})
+	if [ -z "${proc_pid}" ]
+	then
+		echo -n "found no ${d} process running ... "
+	else
+		count=0
+		notinpidfile=
+		for p in ${proc_pid}
+		do
+			count=$((${count}+1))
+			if kill ${p}
+			then
+				echo -n "killed ${p} ... "
+			else
+				echo -n "failed to kill ${p} ... "
+			fi
+			[ "${p}" = "${file_pid}" ] \
+			|| notinpidfile="${notinpidfile} ${p}"
+		done
+		[ ${count} -le 1 ] \
+		|| echo -n "WARNING: ${count} ${d} processes were found running ... "
+		for n in ${notinpidfile}
+		do
+			echo -n "WARNING: process ${n} was not in pid file ... "
+		done
+	fi
+	count=0
+	survivors=$(pidof ${d})
+	while [ -n "${survivors}" ]
+	do
+		sleep 1
+		count=$((${count}+1))
+		survivors=$(pidof ${d})
+		[ -z "${survivors}" -o ${count} -gt 5 ] && break
+		for p in ${survivors}
+		do
+			sleep 1
+			echo -n "${p} "
+			kill ${p}
+		done
+	done
+	survivors=$(pidof ${d})
+	[ -n "${survivors}" ] && \
+	if kill -KILL ${survivors}
+	then
+		echo -n "KILLed ${survivors} ... "
+	else
+		echo -n "failed to KILL ${survivors} ... "
+	fi
+	sleep 1
+	survivors=$(pidof ${d})
+	if [ -z "${survivors}" ]
+	then
+		echo -n "done."
+		if [ -f "${pidfile}" ]
+		then
+			rm -f ${pidfile} \
+			|| echo -n " Failed to remove pidfile."
+		fi
+	else
+		echo -n "failed to stop ${survivors} - giving up."
+		if [ "${survivors}" != "${file_pid}" ]
+		then
+			if echo "${survivors}" > ${pidfile}
+			then
+				chown quagga:quagga ${pidfile}
+				echo -n " Wrote ${survivors} to pidfile."
+			else
+				echo -n " Failed to write ${survivors} to pidfile."
+			fi
+		fi
+	fi
+	echo
+done
+
+# start daemons
+
+if [ -n "$START_DAEMONS" ]
+then
+	[ -d ${CONFDIR} ] \
+	|| quit "${ME}: no config directory ${CONFDIR} - exiting."
+	chown -R quagga:quagga ${CONFDIR}
+	[ -d ${STATEDIR} ] || mkdir -p ${STATEDIR} \
+	|| die "${ME}: could not create state directory ${STATEDIR} - exiting."
+	chown -R quagga:quagga ${STATEDIR}
+
+	for d in $START_DAEMONS
+	do
+		echo -n "${ME}: Starting ${d} ... "
+		proc_pid=$(pidof ${d})
+		pidfile=${STATEDIR}/${d}.pid
+		file_pid=
+		if [ -f "${pidfile}" ]
+		then
+			file_pid=$(cat ${pidfile})
+			if [ -n "${file_pid}" ]
+			then
+				echo -n "found old pid file entry ${file_pid} ... "
+			fi
+		fi
+		if [ -n "${proc_pid}" ]
+		then
+			echo -n "found ${d} running (${proc_pid}) - skipping ${d}."
+			if [ "${proc_pid}" != "${file_pid}" ]
+			then
+				if echo "${proc_pid}" > ${pidfile}
+				then
+					chown quagga:quagga ${pidfile}
+					echo -n " Wrote ${proc_pid} to pidfile."
+				else
+					echo -n " Failed to write ${proc_pid} to pidfile."
+				fi
+			fi
+		elif rm -f "${pidfile}"
+		then
+			if [ "${d}" = "watchquagga" ]
+			then
+				$("${BINDIR}/${d}" \
+					${WATCHQUAGGA_FLAGS} \
+					"${WATCHQUAGGA_CMD}" \
+					${WATCHQUAGGA_DAEMONS})
+				status=$?
+			else
+				$("${BINDIR}/${d}" ${DAEMON_FLAGS})
+				status=$?
+			fi
+			if [ $status -eq 0 ]
+			then
+				echo -n "done."
+			else
+				echo -n "failed."
+			fi
+		else
+			echo -n " failed to remove pidfile."
+		fi
+		echo
+	done
+fi