etc-gentoo/init.d/asterisk

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#!/sbin/runscript
# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
extra_started_commands="forcestop reload"
depend() {
need net
use nscd dns dahdi mysql postgresql slapd capi
}
is_running() {
[ -r "${ast_rundir}/asterisk.pid" ] || return 1
PID="$(cat "${ast_rundir}/asterisk.pid")"
[ -d "/proc/${PID}" ] || return 1
EXE="$(readlink -f /proc/${PID}/exe)"
EXE="${EXE% (deleted)}" # in case asterisk got upgraded and we're still looking at an old one.
[ "${EXE}" = /usr/sbin/asterisk ] || return 1 # pid got re-used for another process.
# PID reported in pidfile is active, and is still an asterisk instance.
return 0
}
# Sets up a few variables for us for use
# ast_instancename: eg, asterisk when RC_SVCNAME=asterisk, or asterisk(foo) when asterisk.foo.
# ast_rundir: directory to be used as run folder (pid and ctl files).
# ast_spooldir:
setup_svc_variables()
{
local t
ast_instancename=asterisk
ast_rundir=/var/run/${RC_SVCNAME}
ast_logdir=/var/log/${RC_SVCNAME}
ast_spooldir=/var/spool/${RC_SVCNAME}
ast_confdir=/etc/${RC_SVCNAME/.//}
if [ "${RC_SVCNAME}" != "asterisk" ]; then
t="${RC_SVCNAME#asterisk.}"
if [ "${RC_SVCNAME}" = "${t}" ]; then
eerror "Invalid SVCNAME of ${RC_SVCNAME}, must be of the format asterisk.name."
return 1
fi
ast_instancename+="(${t})"
fi
[ -n "${ASTERISK_RUNDIR}" ] && ast_rundir="${ASTERISK_RUNDIR}"
[ -n "${ASTERISK_LOGDIR}" ] && ast_logdir="${ASTERISK_LOGDIR}"
[ -n "${ASTERISK_SPOOLDIR}" ] && ast_spooldir="${ASTERISK_SPOOLDIR}"
[ -n "${ASTERISK_CONFDIR}" ] && ast_confdir="${ASTERISK_CONFDIR}"
return 0
}
asterisk_run_loop() {
local result=0 signal=0
echo "Initializing ${ast_instancename} wrapper"
OPTS="$*"
trap "rm -f '${ast_rundir}/wrapper_loop.running'" EXIT
touch "${ast_rundir}/wrapper_loop.running"
while [ -r "${ast_rundir}/wrapper_loop.running" ]; do
if [ -n "${TTY}" ]; then
/usr/bin/stty -F "${TTY}" sane
${NICE} /usr/sbin/asterisk -C "${ast_confdir}/asterisk.conf" ${OPTS} >"${TTY}" 2>&1 <"${TTY}"
result=$?
else
${NICE} /usr/sbin/asterisk -C "${ast_confdir}/asterisk.conf" ${OPTS} 2>&1 >/dev/null
result=$?
fi
if [ "$result" -eq 0 ]; then
echo "Asterisk terminated normally"
break
else
if [ "$result" -gt 128 ]; then
signal="$(expr "$result" - 128)"
MSG="Asterisk terminated with Signal: $signal"
CORE_TARGET="core-$(date "+%Y%m%d-%H%M%S")"
local CORE_DUMPED=0
if [ -f "${ASTERISK_CORE_DIR}/core" ]; then
mv "${ASTERISK_CORE_DIR}/core" \
"${ASTERISK_CORE_DIR}/${CORE_TARGET}"
CORE_DUMPED=1
elif [ -f "${ASTERISK_CORE_DIR}/core.${PID}" ]; then
mv "${ASTERISK_CORE_DIR}/core.${PID}" \
"${ASTERISK_CORE_DIR}/${CORE_TARGET}"
CORE_DUMPED=1
fi
[ $CORE_DUMPED -eq 1 ] && \
MSG="${MSG}\n\rCore dumped: ${ASTERISK_CORE_DIR}/${CORE_TARGET}"
else
MSG="Asterisk terminated with return code: $result"
fi
# kill left-over tasks
for X in ${ASTERISK_CLEANUP_ON_CRASH}; do
kill -9 "$(pidof "${X}")";
done
fi
[ -n "${TTY}" ] \
&& echo "${MSG}" >"${TTY}" \
|| echo "${MSG}"
if [ -n "${ASTERISK_NOTIFY_EMAIL}" ] && \
[ -x /usr/sbin/sendmail ]; then
echo -e -n "Subject: Asterisk crashed\r\n${MSG}\r\n" |\
/usr/sbin/sendmail "${ASTERISK_NOTIFY_EMAIL}"
fi
sleep "${ASTERISK_RESTART_DELAY}"
echo "Restarting Asterisk..."
done
echo "Terminating wrapper loop."
return 0
}
start() {
local OPTS USER GROUP PID
local tmp x
local OPTS ARGS
setup_svc_variables || return $?
ebegin "Starting ${ast_instancename} PBX"
eindent
# filter (redundant) arguments
OPTS="$(echo "${ASTERISK_OPTS}" | sed -re "s:-[cfF]::g")"
# default options
OPTS="${OPTS} -f" # don't fork / detach breaks wrapper script...
# mangle yes/no options
ASTERISK_CONSOLE="$(echo ${ASTERISK_CONSOLE} | tr '[:lower:]' '[:upper:]')"
ASTERISK_WAITBOOTED="$(echo "${ASTERISK_WAITBOOTED}" | tr '[:lower:]' '[:upper:]')"
ASTERISK_RESTART_DELAY="$(echo "${ASTERISK_RESTART_DELAY}" | sed -re 's/^([0-9]*).*/\1/')"
[ -z "${ASTERISK_RESTART_DELAY}" ] && ASTERISK_RESTART_DELAY=5
if [ -n "${ASTERISK_CORE_SIZE}" ] &&
[ "${ASTERISK_CORE_SIZE}" != "0" ]; then
ulimit -c ${ASTERISK_CORE_SIZE}
if [ -n "${ASTERISK_CORE_DIR}" ] && \
[ ! -d "${ASTERISK_CORE_DIR}" ]
then
mkdir -m750 -p "${ASTERISK_CORE_DIR}"
if [ -n "${ASTERISK_USER}" ]; then
chown -R "${ASTERISK_USER}" "${ASTERISK_CORE_DIR}"
fi
fi
ASTERISK_CORE_DIR="${ASTERISK_CORE_DIR:-/tmp}"
cd "${ASTERISK_CORE_DIR}"
einfo "Core dump size : ${ASTERISK_CORE_SIZE}"
einfo "Core dump location : ${ASTERISK_CORE_DIR}"
OPTS="${OPTS} -g"
fi
if [ -n "${ASTERISK_MAX_FD}" ]; then
ulimit -n ${ASTERISK_MAX_FD}
einfo "Max open filedescriptors : ${ASTERISK_MAX_FD}"
fi
if [ -n "${ASTERISK_NICE}" ]; then
if [ ${ASTERISK_NICE} -ge -20 ] && \
[ ${ASTERISK_NICE} -le 19 ]; then
einfo "Nice level : ${ASTERISK_NICE}"
NICE="nice -n ${ASTERISK_NICE} --"
else
eerror "Nice value must be between -20 and 19"
return 1
fi
else
NICE=""
fi
if [ -n "${ASTERISK_NOTIFY_EMAIL}" ]; then
if [ -x /usr/sbin/sendmail ]; then
einfo "Email notifications go to : ${ASTERISK_NOTIFY_EMAIL}"
else
ewarn "Notifications disabled, /usr/sbin/sendmail doesn't exist or is not executable!"
unset ASTERISK_NOTIFY_EMAIL
fi
fi
if [ -n "${ASTERISK_TTY}" ]; then
for x in ${ASTERISK_TTY} \
/dev/tty${ASTERISK_TTY} \
/dev/vc/${ASTERISK_TTY}
do
if [ -c "${x}" ]; then
TTY="${x}"
fi
done
[ -n "${TTY}" ] && \
einfo "Messages are sent to : ${TTY}"
fi
if [ "${ASTERISK_CONSOLE}" = "YES" ] && [ -n "${TTY}" ]; then
einfo "Starting Asterisk console : ${ASTERISK_CONSOLE}"
OPTS="${OPTS} -c"
fi
if [ -n "${ASTERISK_USER}" ]; then
USER="$(echo $ASTERISK_USER | sed 's/:.*//')"
GROUP="$(echo $ASTERISK_USER | awk -F: '/.*:.*/ { print $2 }')"
if [ -n "${USER}" ]; then
if ! getent passwd "${USER}" &>/dev/null; then
eerror "Requested to run asterisk as ${USER}, which doesn't exist."
return 1
fi
OPTS="${OPTS} -U ${USER}"
fi
if [ -n "${GROUP}" ]; then
if ! getent group "${GROUP}" &>/dev/null; then
eerror "Requested to run asterisk with group ${USER}, which doesn't exist."
return 1
fi
OPTS="${OPTS} -G ${GROUP}"
GROUP=":${GROUP}" # make it look nice...
fi
checkpath -d -m 0755 -o ${USER}${GROUP} "${ast_logdir}" "${ast_rundir}" "${ast_spooldir}"
find "${ast_logdir}" "${ast_rundir}" "${ast_spooldir}" ! -user "${USER}" | while read element; do
ewarn "${USER} is not the owner of $element, or permissions are insufficient, fixing."
chown ${USER} "${element}"
chmod u+rX "${element}"
done;
einfo "Starting asterisk as : ${USER}${GROUP}"
else
checkpath -d -m 0755 -o root:root "${ast_logdir}" "${ast_rundir}"
ewarn "Starting asterisk as root is not recommended."
fi
asterisk_run_loop ${OPTS} 2>&1 | logger -t "wrapper:${ast_instancename}" &
result=$?
if [ $result -eq 0 ]; then
# 2 seconds should be enough for asterisk to start
sleep 2
is_running
result=$?
[ $result -eq 0 ] || wrapperstop
fi
eoutdent
eend $result
if [ $result -eq 0 -a "${ASTERISK_WAITBOOTED}" = "YES" ]; then
ebegin "Waiting for ${ast_instancename} to fully boot"
/usr/sbin/asterisk -C "${ast_confdir}/asterisk.conf" -r -x "core waitfullybooted" &>/dev/null
eend $?
fi
return $result
}
wrapperstop() {
# Accomodate system upgrades (so a previous version of the wrapper script that still uses a pid file may be running).
if [ -r "${ast_rundir}/wrapper_loop.pid" ]; then
ebegin "Killing wrapper script"
kill "$(cat /var/run/asterisk/wrapper_loop.pid)"
eend $?
fi
# The new one (due to "hardened" requirements) uses a simpler
# flag to indicate running or shutting down.
if [ -r "${ast_rundir}/wrapper_loop.running" ]; then
ebegin "Signalling wrapper script to terminate"
rm "${ast_rundir}/wrapper_loop.running"
eend $?
fi
return 0
}
forcestop() {
setup_svc_variables || return $?
# Just to be sure - when we want to forcestop we should make it all tear down.
wrapperstop
ebegin "Stopping asterisk PBX"
start-stop-daemon --stop --pidfile /var/run/asterisk/asterisk.pid
eend $?
}
stop() {
setup_svc_variables || return $?
wrapperstop
if ! is_running; then
eerror "Asterisk is not running!"
return 0
fi
ebegin "Stopping asterisk PBX gracefully"
/usr/sbin/asterisk -C "${ast_confdir}/asterisk.conf" -r -x "core stop gracefully" &>/dev/null
# Now we have to wait until asterisk has _really_ stopped.
sleep 1
if is_running; then
einfon "Waiting for asterisk to shutdown ."
local cnt=0
while is_running; do
cnt="$(expr $cnt + 1)"
if [ $cnt -gt 60 ] ; then
# Waited 120 seconds now. Fail.
echo
eend 1 "Failed."
return
fi
sleep 2
echo -n "."
done
echo
fi
eend 0
}
reload() {
setup_svc_variables || return $?
if is_running; then
ebegin "Forcing asterisk to reload configuration"
/usr/sbin/asterisk -C "${ast_confdir}/asterisk.conf" -r -x "module reload" &>/dev/null
eend $?
else
eerror "Asterisk is not running!"
fi
}