#!/bin/sh ### BEGIN INIT INFO # Provides: dnsmasq_lan # Required-Start: $network $remote_fs $syslog # Required-Stop: $network $remote_fs $syslog # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Description: DHCP and DNS server ### END INIT INFO set +e # Don't exit on error status PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin DAEMON=/usr/sbin/dnsmasq NAME=dnsmasq_lan DESC="DNS forwarder and DHCP server" # Most configuration options in /etc/default/dnsmasq are deprecated # but still honoured. ENABLED=1 if [ -r /etc/default/$NAME ]; then . /etc/default/$NAME fi # Get the system locale, so that messages are in the correct language, and the # charset for IDN is correct if [ -r /etc/default/locale ]; then . /etc/default/locale export LANG fi test -x $DAEMON || exit 0 # Provide skeleton LSB log functions for backports which don't have LSB functions. if [ -f /lib/lsb/init-functions ]; then . /lib/lsb/init-functions else log_warning_msg () { echo "${@}." } log_success_msg () { echo "${@}." } log_daemon_msg () { echo -n "${1}: $2" } log_end_msg () { if [ $1 -eq 0 ]; then echo "." elif [ $1 -eq 255 ]; then /bin/echo -e " (warning)." else /bin/echo -e " failed!" fi } fi # RESOLV_CONF: # If the resolvconf package is installed then use the resolv conf file # that it provides as the default. Otherwise use /etc/resolv.conf as # the default. # # If IGNORE_RESOLVCONF is set in /etc/default/dnsmasq or an explicit # filename is set there then this inhibits the use of the resolvconf-provided # information. # # Note that if the resolvconf package is installed it is not possible to # override it just by configuration in /etc/dnsmasq.conf, it is necessary # to set IGNORE_RESOLVCONF=yes in /etc/default/dnsmasq. if [ ! "$RESOLV_CONF" ] && [ "$IGNORE_RESOLVCONF" != "yes" ] && [ -x /sbin/resolvconf ] then RESOLV_CONF=/var/run/dnsmasq/resolv.conf fi for INTERFACE in $DNSMASQ_INTERFACE; do DNSMASQ_INTERFACES="$DNSMASQ_INTERFACES -i $INTERFACE" done for INTERFACE in $DNSMASQ_EXCEPT; do DNSMASQ_INTERFACES="$DNSMASQ_INTERFACES -I $INTERFACE" done if [ ! "$DNSMASQ_USER" ]; then DNSMASQ_USER="dnsmasq" fi start() { # Return # 0 if daemon has been started # 1 if daemon was already running # 2 if daemon could not be started # /var/run may be volatile, so we need to ensure that # /var/run/dnsmasq exists here as well as in postinst if [ ! -d /var/run/dnsmasq ]; then mkdir /var/run/dnsmasq || return 2 chown dnsmasq:nogroup /var/run/dnsmasq || return 2 fi start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON --test -- -C /etc/dnsmasq_lan.conf > /dev/null || return 1 start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON -- -C /etc/dnsmasq_lan.conf \ -x /var/run/dnsmasq/$NAME.pid \ ${MAILHOSTNAME:+ -m $MAILHOSTNAME} \ ${MAILTARGET:+ -t $MAILTARGET} \ ${DNSMASQ_USER:+ -u $DNSMASQ_USER} \ ${DNSMASQ_INTERFACES:+ $DNSMASQ_INTERFACES} \ ${DHCP_LEASE:+ -l $DHCP_LEASE} \ ${DOMAIN_SUFFIX:+ -s $DOMAIN_SUFFIX} \ ${RESOLV_CONF:+ -r $RESOLV_CONF} \ ${CACHESIZE:+ -c $CACHESIZE} \ ${CONFIG_DIR:+ -7 $CONFIG_DIR} \ ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS} \ || return 2 } start_resolvconf() { # If interface "lo" is explicitly disabled in /etc/default/dnsmasq # Then dnsmasq won't be providing local DNS, so don't add it to # the resolvconf server set. for interface in $DNSMASQ_EXCEPT do [ $interface = lo ] && return done if [ -x /sbin/resolvconf ] ; then echo "nameserver 127.0.0.1" | /sbin/resolvconf -a lo.$NAME fi return 0 } stop() { # Return # 0 if daemon has been stopped # 1 if daemon was already stopped # 2 if daemon could not be stopped # other if a failure occurred start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile /var/run/dnsmasq/$NAME.pid RETVAL="$?" [ "$RETVAL" = 2 ] && return 2 return "$RETVAL" } stop_resolvconf() { if [ -x /sbin/resolvconf ] ; then /sbin/resolvconf -d lo.$NAME fi return 0 } status() { # Return # 0 if daemon is running # 1 if daemon is dead and pid file exists # 3 if daemon is not running # 4 if daemon status is unknown start-stop-daemon --start --quiet --pidfile /var/run/dnsmasq/$NAME.pid --exec $DAEMON --test > /dev/null case "$?" in 0) [ -e "/var/run/dnsmasq/$NAME.pid" ] && return 1 ; return 3 ;; 1) return 0 ;; *) return 4 ;; esac } case "$1" in start) test "$ENABLED" != "0" || exit 0 log_daemon_msg "Starting $DESC" "$NAME" start case "$?" in 0) log_end_msg 0 start_resolvconf exit 0 ;; 1) log_success_msg "(already running)" exit 0 ;; *) log_end_msg 1 exit 1 ;; esac ;; stop) stop_resolvconf if [ "$ENABLED" != "0" ]; then log_daemon_msg "Stopping $DESC" "$NAME" fi stop RETVAL="$?" if [ "$ENABLED" = "0" ]; then case "$RETVAL" in 0) log_daemon_msg "Stopping $DESC" "$NAME"; log_end_msg 0 ;; esac exit 0 fi case "$RETVAL" in 0) log_end_msg 0 ; exit 0 ;; 1) log_warning_msg "(not running)" ; exit 0 ;; *) log_end_msg 1; exit 1 ;; esac ;; restart|force-reload) test "$ENABLED" != "0" || exit 1 $DAEMON --test ${CONFIG_DIR:+ -7 $CONFIG_DIR} ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS} >/dev/null 2>&1 if [ $? -ne 0 ]; then NAME="configuration syntax check" RETVAL="2" else stop_resolvconf stop RETVAL="$?" fi log_daemon_msg "Restarting $DESC" "$NAME" case "$RETVAL" in 0|1) sleep 2 start case "$?" in 0) log_end_msg 0 start_resolvconf exit 0 ;; *) log_end_msg 1 exit 1 ;; esac ;; *) log_end_msg 1 exit 1 ;; esac ;; status) log_daemon_msg "Checking $DESC" "$NAME" status case "$?" in 0) log_success_msg "(running)" ; exit 0 ;; 1) log_success_msg "(dead, pid file exists)" ; exit 1 ;; 3) log_success_msg "(not running)" ; exit 3 ;; *) log_success_msg "(unknown)" ; exit 4 ;; esac ;; dump-stats) kill -s USR1 `cat /var/run/dnsmasq/$NAME.pid` ;; systemd-start-resolvconf) start_resolvconf ;; systemd-stop-resolvconf) stop_resolvconf ;; systemd-exec) # --pid-file without argument disables writing a PIDfile, we don't need one with sytemd. # Enable DBus by default because we use DBus activation with systemd. exec $DAEMON --keep-in-foreground --pid-file --enable-dbus \ ${MAILHOSTNAME:+ -m $MAILHOSTNAME} \ ${MAILTARGET:+ -t $MAILTARGET} \ ${DNSMASQ_USER:+ -u $DNSMASQ_USER} \ ${DNSMASQ_INTERFACES:+ $DNSMASQ_INTERFACES} \ ${DHCP_LEASE:+ -l $DHCP_LEASE} \ ${DOMAIN_SUFFIX:+ -s $DOMAIN_SUFFIX} \ ${RESOLV_CONF:+ -r $RESOLV_CONF} \ ${CACHESIZE:+ -c $CACHESIZE} \ ${CONFIG_DIR:+ -7 $CONFIG_DIR} \ ${DNSMASQ_OPTS:+ $DNSMASQ_OPTS} ;; *) echo "Usage: /etc/init.d/$NAME {start|stop|restart|force-reload|dump-stats|status}" >&2 exit 3 ;; esac exit 0