src/initscripts/system/dhcp

   1 #!/bin/sh
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007-2022  IPFire Team  <info@ipfire.org>                     #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 . /etc/sysconfig/rc
  23 . $rc_functions
  24
  25 [ -e "/etc/sysconfig/dhcpd" ] && . /etc/sysconfig/dhcpd
  26
  27 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
  28 eval $(/usr/local/bin/readhash /var/ipfire/dhcp/settings)
  29
  30 function flush_chains() {
  31         iptables -F DHCPGREENINPUT
  32         iptables -F DHCPGREENOUTPUT
  33         iptables -F DHCPBLUEINPUT
  34         iptables -F DHCPBLUEOUTPUT
  35 }
  36
  37 case "$1" in
  38         start)
  39                 flush_chains
  40
  41                 if [ -n "${GREEN_DEV}" -a -e "/var/ipfire/dhcp/enable_green" ]; then
  42                         LISTEN_INTERFACES+=" ${GREEN_DEV}"
  43
  44                         iptables -A DHCPGREENINPUT  -i "${GREEN_DEV}" -j DHCPINPUT
  45                         iptables -A DHCPGREENOUTPUT -o "${GREEN_DEV}" -j DHCPOUTPUT
  46                 fi
  47                 if [ -n "${BLUE_DEV}" -a -e "/var/ipfire/dhcp/enable_blue" ]; then
  48                         LISTEN_INTERFACES+=" ${BLUE_DEV}"
  49
  50                         iptables -A DHCPBLUEINPUT  -i "${BLUE_DEV}" -j DHCPINPUT
  51                         iptables -A DHCPBLUEOUTPUT -o "${BLUE_DEV}" -j DHCPOUTPUT
  52                 fi
  53
  54                 boot_mesg "Starting DHCP Server..."
  55                 loadproc /usr/sbin/dhcpd -q ${LISTEN_INTERFACES}
  56
  57                 # Start Unbound DHCP Lease Bridge unless RFC2136 is used
  58                 if [ "${DNS_UPDATE_ENABLED}" != on ]; then
  59                         boot_mesg "Starting Unbound DHCP Leases Bridge..."
  60                         loadproc /usr/sbin/unbound-dhcp-leases-bridge -d
  61                 fi
  62
  63                 (sleep 5 && chmod 644 /var/run/dhcpd.pid) & # Fix because silly dhcpd creates its pid with mode 640
  64                 ;;
  65
  66         stop)
  67                 flush_chains
  68
  69                 boot_mesg "Stopping DHCP Server..."
  70                 killproc -p /var/run/dhcpd.pid /usr/sbin/dhcpd
  71                 if [ "$(ps -A | grep " dhcpd")" != "" ] ; then
  72                     # if fail use the hard way ...
  73                     boot_mesg "Killing DHCP Server..."
  74                     killall -w -s KILL /usr/sbin/dhcpd > /dev/null 2>&1
  75                     rm -f /var/run/dhcpd.pid > /dev/null 2>&1
  76                     echo_ok;
  77                 fi
  78
  79                 boot_mesg "Stopping Unbound DHCP Leases Bridge..."
  80                 killproc /usr/sbin/unbound-dhcp-leases-bridge
  81                 ;;
  82
  83         reload)
  84                 boot_mesg "Reloading DHCP Server..."
  85                 reloadproc /usr/sbin/dhcpd
  86                 ;;
  87
  88         restart)
  89                 $0 stop
  90                 sleep 1
  91                 $0 start
  92                 ;;
  93
  94         status)
  95                 statusproc /usr/sbin/dhcpd
  96                 statusproc /usr/sbin/unbound-dhcp-leases-bridge
  97                 ;;
  98
  99         *)
 100                 echo "Usage: $0 {start|stop|reload|restart|status}"
 101                 exit 1
 102                 ;;
 103 esac