dhcp6.init

   1 #!/bin/sh
   2 # DHCP IPv6 Server
   3 #
   4 # chkconfig:    345 80 20
   5 # description:  DHCP IPv6 Server
   6
   7 # Source function library
   8 . /etc/rc.d/init.d/functions
   9
  10 # Get network config
  11 . /etc/sysconfig/network
  12
  13 # Check that networking is up.
  14 if ! is_yes "${IPV6_NETWORKING}"; then
  15         exit 0
  16 fi
  17
  18 # Get service config
  19 [ -f /etc/sysconfig/dhcpd ] && . /etc/sysconfig/dhcpd
  20
  21 if [ ! -f /var/lock/subsys/network -a "$1" != stop -a "$1" != status ]; then
  22         msg_network_down "DHCP IPv6 Server"
  23         exit 1
  24 fi
  25
  26 check_device_up()
  27 {
  28         local DEVICE=$1
  29         if LC_ALL=C ip addr show dev $DEVICE | grep -q inet6; then
  30                 return 0
  31         else
  32                 return 1
  33         fi
  34 }
  35
  36 # configtest itself
  37 configtest() {
  38         local rc=0
  39         /sbin/dhcpd -6 -t -T -cf /etc/dhcpd6.conf -pf /var/run/dhpcd6.pid || rc=$?
  40
  41         # check if interfaces specified exist and have addresses
  42         for i in $DHCPD_INTERFACES; do
  43                 if ! check_device_up $i; then
  44                         echo >&2 "Device '$i' does not exist or has no address configured"
  45                         rc=1
  46                 fi
  47         done
  48
  49         return $rc
  50 }
  51
  52 # wrapper for configtest
  53 checkconfig=-1
  54 checkconfig() {
  55         local details=${1:-0}
  56
  57         # run checkconfig only once
  58         if [ $checkconfig -ne -1 ]; then
  59                 return $checkconfig
  60         fi
  61
  62         if [ "$details" = "1" ]; then
  63                 # run config test and display report (status action)
  64                 show "Checking %s configuration" "DHCP IPv6 Server"; busy
  65                 local out
  66                 out=$(configtest 2>&1)
  67                 checkconfig=$?
  68                 if [ $checkconfig -eq 0 ]; then
  69                         ok
  70                 else
  71                         fail
  72                 fi
  73                 [ "$out" ] && echo >&2 "$out"
  74                 RETVAL=$checkconfig
  75         else
  76                 # run config test and abort with nice message if failed
  77                 # (for actions checking status before action).
  78                 configtest >/dev/null 2>&1
  79                 checkconfig=$?
  80                 if [ $checkconfig -ne 0 ]; then
  81                         show "Checking %s configuration" "DHCP IPv6 Server"; fail
  82                         nls 'Configuration test failed. See details with %s "checkconfig"' $0
  83                         exit $checkconfig
  84                 fi
  85         fi
  86 }
  87
  88 start() {
  89         # Check if the service is already running?
  90         if [ -f /var/lock/subsys/dhcpd6 ]; then
  91                 msg_already_running "DHCP IPv6 Server"
  92                 return
  93         fi
  94
  95         checkconfig
  96         msg_starting "DHCP IPv6 Server"
  97         daemon /sbin/dhcpd -6 -q -cf /etc/dhcpd6.conf -pf /var/run/dhpcd6.pid $DHCPD_INTERFACES
  98         RETVAL=$?
  99         [ $RETVAL -eq 0 ] && touch /var/lock/subsys/dhcpd6
 100 }
 101
 102 stop() {
 103         if [ ! -f /var/lock/subsys/dhcpd6 ]; then
 104                 msg_not_running "DHCP IPv6 Server"
 105                 return
 106         fi
 107
 108         msg_stopping "DHCP IPv6 Server"
 109         killproc --pidfile /var/run/dhcpd6.pid dhcpd
 110         rm -f /var/run/dhcpd6.pid /var/lock/subsys/dhcpd6 >/dev/null 2>&1
 111 }
 112
 113 condrestart() {
 114         if [ ! -f /var/lock/subsys/dhcpd6 ]; then
 115                 msg_not_running "DHCP IPv6 Server"
 116                 RETVAL=$1
 117                 return
 118         fi
 119
 120         checkconfig
 121         stop
 122         start
 123 }
 124
 125 RETVAL=0
 126 # See how we were called.
 127 case "$1" in
 128   start)
 129         start
 130         ;;
 131   stop)
 132         stop
 133         ;;
 134   restart)
 135         checkconfig
 136         stop
 137         start
 138         ;;
 139   try-restart)
 140         condrestart 0
 141         ;;
 142   force-reload)
 143         condrestart 7
 144         ;;
 145   checkconfig|configtest)
 146         checkconfig 1
 147         ;;
 148   status)
 149         status --pidfile /var/run/dhcpd6.pid dhcpd6 dhcpd
 150         exit $?
 151         ;;
 152   *)
 153         msg_usage "$0 {start|stop|restart|try-restart|force-reload|checkconfig|status}"
 154         exit 3
 155 esac
 156
 157 exit $RETVAL