meta-starlingx/meta-stx-integ/recipes-support/dnsmasq/dnsmasq/init

   1 #!/bin/sh
   2 DAEMON=/usr/bin/dnsmasq
   3 NAME=dnsmasq
   4 DESC="DNS forwarder and DHCP server"
   5 ARGS="-7 /etc/dnsmasq.d"
   6
   7 test -f $DAEMON || exit 0
   8
   9 set -e
  10
  11 if [ -r /etc/default/$NAME ]
  12 then
  13         . /etc/default/$NAME
  14 fi
  15
  16 DNSMASQ_CONF="/etc/dnsmasq.conf"
  17 test "/etc/dnsmasq.d/*" != '/etc/dnsmasq.d/*' && DNSMASQ_CONF="${DNSMASQ_CONF} /etc/dnsmasq.d/*"
  18
  19 test -z "${PIDFILE}" && PIFILE="/run/dnsmasq.pid"
  20
  21 if [ -z "$IGNORE_RESOLVCONF" ]
  22 then
  23         egrep -h -q '^no-resolv' ${DNSMASQ_CONF} && IGNORE_RESOLVCONF="yes"
  24 fi
  25
  26 # RESOLV_CONF:
  27 # If the resolvconf package is installed then use the resolv conf file
  28 # that it provides as the default.  Otherwise use /etc/resolv.conf as
  29 # the default.
  30 #
  31 # If IGNORE_RESOLVCONF is set in /etc/default/dnsmasq or an explicit
  32 # filename is set there then this inhibits the use of the resolvconf-provided
  33 # information.
  34 #
  35 # Note that if the resolvconf package is installed it is not possible to
  36 # override it just by configuration in /etc/dnsmasq.conf, it is necessary
  37 # to set IGNORE_RESOLVCONF=yes in /etc/default/dnsmasq.
  38
  39 test -z "$RESOLV_CONF" -a "$IGNORE_RESOLVCONF" != "yes" -a -x /sbin/resolvconf && \
  40         RESOLV_CONF=/run/dnsmasq/resolv.conf
  41
  42 start_resolvconf()
  43 {
  44         if [ "$IGNORE_RESOLVCONF" != "yes" -a -x /sbin/resolvconf ]
  45         then
  46                 echo "nameserver 127.0.0.1" | /sbin/resolvconf -a lo.$NAME
  47         fi
  48         :
  49 }
  50
  51 stop_resolvconf()
  52 {
  53         if [ "$IGNORE_RESOLVCONF" != "yes" -a -x /sbin/resolvconf ]
  54         then
  55                 /sbin/resolvconf -d lo.$NAME
  56         fi
  57         :
  58 }
  59
  60 case "$1" in
  61     start)
  62         echo -n "starting $DESC: $NAME... "
  63         test -d /var/lib/misc/ || mkdir /var/lib/misc/
  64         start-stop-daemon -S -x $DAEMON -- $ARGS \
  65                 ${RESOLV_CONF:+ -r $RESOLV_CONF} \
  66                 ${PIDFILE:+ -x $PIDFILE}
  67         test $? -eq 0 && start_resolvconf
  68         echo "done."
  69         ;;
  70     stop)
  71         echo -n "stopping $DESC: $NAME... "
  72         stop_resolvconf
  73         start-stop-daemon -K -x $DAEMON
  74         echo "done."
  75         ;;
  76     status)
  77         echo -n "dnsmasq "
  78         start-stop-daemon -q -K -t -x $DAEMON
  79         RET=$?
  80         if [ "$RET" = "0" ]; then
  81                 PID=`cat ${PIDFILE}`
  82                 echo "($PID) is running"
  83         else
  84                 echo "is not running"
  85                 exit $RET
  86         fi
  87         ;;
  88     restart)
  89         echo "restarting $DESC: $NAME... "
  90         $0 stop
  91         $0 start
  92         echo "done."
  93         ;;
  94     reload)
  95         echo -n "reloading $DESC: $NAME... "
  96         killall -HUP $(basename ${DAEMON})
  97         echo "done."
  98         ;;
  99     systemd-start-resolvconf)
 100         start_resolvconf
 101         ;;
 102     systemd-stop-resolvconf)
 103         stop_resolvconf
 104         ;;
 105     systemd-exec)
 106         test -d /var/lib/misc/ || mkdir /var/lib/misc/
 107         exec $DAEMON --keep-in-foreground $ARGS \
 108                 ${RESOLV_CONF:+ -r $RESOLV_CONF} \
 109                 ${PIDFILE:+ -x $PIDFILE}
 110         ;;
 111     *)
 112         echo "Usage: $0 {start|stop|status|restart|reload}"
 113         exit 1
 114         ;;
 115 esac
 116
 117 exit 0