src/initscripts/system/dhcp

   1 #!/bin/sh
   2 # Begin $rc_base/init.d/dhcp
   3
   4 # Based on sysklogd script from LFS-3.1 and earlier.
   5 # Rewritten by Gerard Beekmans  - gerard@linuxfromscratch.org
   6 # Modified for IPFire by Michael Tremer - mitch@ipfire.org
   7
   8 . /etc/sysconfig/rc
   9 . $rc_functions
  10
  11 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
  12 eval $(/usr/local/bin/readhash /var/ipfire/dhcp/settings)
  13
  14 function flush_chains() {
  15         iptables -F DHCPGREENINPUT
  16         iptables -F DHCPGREENOUTPUT
  17         iptables -F DHCPBLUEINPUT
  18         iptables -F DHCPBLUEOUTPUT
  19 }
  20
  21 case "$1" in
  22         start)
  23                 flush_chains
  24
  25                 if [ -n "${GREEN_DEV}" -a -e "/var/ipfire/dhcp/enable_green" ]; then
  26                         devices="${GREEN_DEV}"
  27
  28                         iptables -A DHCPGREENINPUT  -i "${GREEN_DEV}" -j DHCPINPUT
  29                         iptables -A DHCPGREENOUTPUT -o "${GREEN_DEV}" -j DHCPOUTPUT
  30                 fi
  31                 if [ -n "${BLUE_DEV}" -a -e "/var/ipfire/dhcp/enable_blue" ]; then
  32                         devices+=" ${BLUE_DEV}"
  33
  34                         iptables -A DHCPBLUEINPUT  -i "${BLUE_DEV}" -j DHCPINPUT
  35                         iptables -A DHCPBLUEOUTPUT -o "${BLUE_DEV}" -j DHCPOUTPUT
  36                 fi
  37
  38                 boot_mesg "Starting DHCP Server..."
  39                 loadproc /usr/sbin/dhcpd -q ${devices}
  40
  41                 # Start Unbound DHCP Lease Bridge unless RFC2136 is used
  42                 if [ "${DNS_UPDATE_ENABLED}" != on ]; then
  43                         boot_mesg "Starting Unbound DHCP Leases Bridge..."
  44                         loadproc /usr/sbin/unbound-dhcp-leases-bridge -d
  45                 fi
  46
  47                 (sleep 5 && chmod 644 /var/run/dhcpd.pid) & # Fix because silly dhcpd creates its pid with mode 640
  48                 ;;
  49
  50         stop)
  51                 flush_chains
  52
  53                 boot_mesg "Stopping DHCP Server..."
  54                 killproc -p /var/run/dhcpd.pid /usr/sbin/dhcpd
  55                 if [ "$(ps -A | grep " dhcpd")" != "" ] ; then
  56                     # if fail use the hard way ...
  57                     boot_mesg "Killing DHCP Server..."
  58                     killall -w -s KILL /usr/sbin/dhcpd > /dev/null 2>&1
  59                     rm -f /var/run/dhcpd.pid > /dev/null 2>&1
  60                     echo_ok;
  61                 fi
  62
  63                 boot_mesg "Stopping Unbound DHCP Leases Bridge..."
  64                 killproc /usr/sbin/unbound-dhcp-leases-bridge
  65                 ;;
  66
  67         reload)
  68                 boot_mesg "Reloading DHCP Server..."
  69                 reloadproc /usr/sbin/dhcpd
  70                 ;;
  71
  72         restart)
  73                 $0 stop
  74                 sleep 1
  75                 $0 start
  76                 ;;
  77
  78         status)
  79                 statusproc /usr/sbin/dhcpd
  80                 statusproc /usr/sbin/unbound-dhcp-leases-bridge
  81                 ;;
  82
  83         *)
  84                 echo "Usage: $0 {start|stop|reload|restart|status}"
  85                 exit 1
  86                 ;;
  87 esac
  88
  89 # End $rc_base/init.d/dhcp