usability and stability patch from package maintainer Johannes 5 Joemann
[openwrt/openwrt.git] / openwrt / package / quagga / files / quagga.init
diff --git a/openwrt/package/quagga/files/quagga.init b/openwrt/package/quagga/files/quagga.init
new file mode 100644 (file)
index 0000000..01f8d71
--- /dev/null
@@ -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