# Kamailio Service

description   "Upstart script for Kamailio server"
author        "Kamailio Community"
version       "0.1-beta"

env DAEMON=/sbin/kamailio
env NAME=kamailio
env DESC="Kamailio SIP server"
env HOMEDIR=/var/run/kamailio
env DEFAULTS=/etc/default/kamailio
env CFGFILE=/etc/kamailio/kamailio.cfg
env RUN_KAMAILIO=yes

start on runlevel [2345]
stop on starting rc RUNLEVEL=[016]
start on started mysql

console output
expect daemon

pre-start script

# Load startup default options if available.
if [ -f $DEFAULTS ]; then
  . $DEFAULTS || true
fi

# Do not start kamailio if fork=no is set in the config file
if grep -q "^[[:space:]]*fork[[:space:]]*=[[:space:]]*no.*" $CFGFILE; then
        echo "Not starting $DESC: fork=no specified in config file."
        echo "Review your config or start Kamailio in debug mode."
        exit 1
fi

# Check if kamailio configuration is valid before starting the server.
set +e
out=$($DAEMON -c 2>&1 > /dev/null)
retcode=$?
set -e
if [ "$retcode" != '0' ]; then
        echo "Not starting $DESC: Config file invalid."
        echo -e "\n$out\n"
        exit 1;
fi

# Create HOMEDIR directory in case it doesn't exist.
# Useful in Ubuntu as /var/run/ content is deleted in shutdown.
if [ ! -d $HOMEDIR ]; then
        mkdir $HOMEDIR
fi

[ -z $USER  ] && USER=$(whoami)
[ -z $GROUP ] && GROUP=$(groups | awk '{print $1}')

# Set the appropiate owner and group
chown ${USER}:${GROUP} $HOMEDIR

# Create a radius sequence file to be used by the radius client if
# radius accounting is enabled. This is needed to avoid any issue
# with the file not being writable if kamailio first starts as user
# root because DUMP_CORE is enabled and creates this file as user
# root and then later it switches back to user kamailio and cannot
# write to the file. If the file exists before kamailio starts, it
# won't change it's ownership and will be writable for both root
# and kamailio, no matter what options are chosen at install time

if [ -n "${RADIUS_SEQ_FILE}" ]; then
        RADIUS_SEQ_FILE=$HOMEDIR/$RADIUS_SEQ_FILE
        touch $RADIUS_SEQ_FILE
        chown ${USER}:${GROUP} $RADIUS_SEQ_FILE
        chmod 660 $RADIUS_SEQ_FILE
fi

if [ "$RUN_KAMAILIO" != "yes" ]; then
        echo "Not starting $DESC, it is not yet configured."
        echo "Edit $DEFAULTS or /etc/init/kamailio.conf first."
        exit 1
fi

# Define Kamailio memory usage
[ -z "$SHM_MEMORY" ] && SHM_MEMORY=64
[ -z "$PKG_MEMORY" ] && PKG_MEMORY=4

# Define user to run Kamailio
# If not defined at defaults, use current user
[ -z "$USER" ]  && USER=kamailio
[ -z "$GROUP" ] && GROUP=kamailio

# Set the environment if set to dump core
if test "$DUMP_CORE" = "yes" ; then
  # set proper ulimit.
  ulimit -c unlimited

  # directory for the core dump files.
  # COREDIR=/tmp/corefiles
  # [ -d $COREDIR ] || mkdir $COREDIR
  # chmod 777 $COREDIR
  # echo "$COREDIR/core.%e.sig%s.%p" > /proc/sys/kernel/core_pattern
fi

OPTIONS="-f $CFGFILE -m $SHM_MEMORY -M $PKG_MEMORY -u $USER -g $GROUP"

echo "\nStarting Kamailio as $DAEMON $OPTIONS\n"

end script

exec $DAEMON $OPTIONS