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openwrt-xburst/openwrt/package/quagga/files/quagga.init
wbx e5c9263503 usability and stability patch from package maintainer Johannes 5 Joemann
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@1577 3c298f89-4303-0410-b956-a3cf2f4a3e73
2005-08-03 10:51:37 +00:00

334 lines
6.2 KiB
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#!/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