pfSense

#!/bin/sh

#

# $Id$

#

# $FreeBSD: src/contrib/isc-dhcp/client/scripts/freebsd,v 1.9.2.6 2003/03/02 16:42:38 murray Exp $

if [ -x /usr/bin/logger ]; then

        LOGGER="/usr/bin/logger -s -p user.notice -t dhclient"

else

        LOGGER=echo

fi

make_resolv_conf() {

  if [ x"$new_domain_name_servers" != x ]; then

    if [ "x$new_domain_name" != x ]; then

      echo $new_domain_name >/var/etc/defaultdomain.conf

    else

      rm -f /var/etc/defaultdomain.conf

    fi

    rm -f /var/etc/nameservers.conf

    for nameserver in $new_domain_name_servers; do

      echo $nameserver >>/var/etc/nameservers.conf

    done

  fi

}

# Must be used on exit.   Invokes the local dhcp client exit hooks, if any.

exit_with_hooks() {

  exit_status=$1

  if [ -f /etc/dhclient-exit-hooks ]; then

    . /etc/dhclient-exit-hooks

  fi

# probably should do something with exit status of the local script

  exit $exit_status

}

# Invoke the local dhcp client enter hooks, if they exist.

if [ -f /etc/dhclient-enter-hooks ]; then

  exit_status=0

  . /etc/dhclient-enter-hooks

  # allow the local script to abort processing of this state

  # local script must set exit_status variable to nonzero.

  if [ $exit_status -ne 0 ]; then

    exit $exit_status

  fi

fi

if [ x$new_network_number != x ]; then

   $LOGGER New Network Number: $new_network_number

fi

if [ x$new_broadcast_address != x ]; then

 $LOGGER New Broadcast Address: $new_broadcast_address

  new_broadcast_arg="broadcast $new_broadcast_address"

fi

if [ x$old_broadcast_address != x ]; then

  old_broadcast_arg="broadcast $old_broadcast_address"

fi

if [ x$new_subnet_mask != x ]; then

  new_netmask_arg="netmask $new_subnet_mask"

fi

if [ x$old_subnet_mask != x ]; then

  old_netmask_arg="netmask $old_subnet_mask"

fi

if [ x$alias_subnet_mask != x ]; then

  alias_subnet_arg="netmask $alias_subnet_mask"

fi

if [ x$reason = xMEDIUM ]; then

  eval "ifconfig $interface $medium"

  eval "ifconfig $interface inet -alias 0.0.0.0 $medium" >/dev/null 2>&1

  sleep 1

  exit 0

fi

if [ x$reason = xPREINIT ]; then

  if [ x$alias_ip_address != x ]; then

    ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1

    route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1

  fi

  ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \

                broadcast 255.255.255.255 up

  exit 0

fi

if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then

  exit 0;

fi

if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \

   [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then

  current_hostname=`/bin/hostname`

  if [ x$current_hostname = x ] || \

     [ x$current_hostname = x$old_host_name ]; then

    if [ x$current_hostname = x ] || \

       [ x$new_host_name != x$old_host_name ]; then

      $LOGGER "New Hostname: $new_host_name"

      hostname $new_host_name

    fi

  fi

  if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \

                [ x$alias_ip_address != x$old_ip_address ]; then

    ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1

    route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1

  fi

  if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]

   then

    eval "ifconfig $interface inet -alias $old_ip_address $medium"

    route delete $old_ip_address 127.1 >/dev/null 2>&1

    for router in $old_routers; do

      route delete default $router >/dev/null 2>&1

    done

    if [ -n "$old_static_routes" ]; then

      set -- $old_static_routes

      while [ $# -gt 1 ]; do

        route delete $1 $2

        shift; shift

      done

    fi

    arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' |sh

  fi

  if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \

     [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then

    eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \

                                        $new_broadcast_arg $medium"

    $LOGGER "New IP Address ($interface): $new_ip_address"

    $LOGGER "New Subnet Mask ($interface): $new_subnet_mask"

    $LOGGER "New Broadcast Address ($interface): $new_broadcast_address"

    if [ -n "$new_routers" ]; then

      $LOGGER "New Routers: $new_routers"

      echo $new_routers > /tmp/${interface}_router

    fi

    route add $new_ip_address 127.1 >/dev/null 2>&1

    for router in $new_routers; do

      route add default $router >/dev/null 2>&1

    done

    if [ -n "$new_static_routes" ]; then

      $LOGGER "New Static Routes: $new_static_routes"

      set -- $new_static_routes

      while [ $# -gt 1 ]; do

        route add $1 $2

        shift; shift

      done

    fi

  fi

  if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];

   then

    ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg

    route add $alias_ip_address 127.0.0.1

  fi

  make_resolv_conf

  exit_with_hooks 0

fi

if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \

   || [ x$reason = xSTOP ]; then

  if [ x$alias_ip_address != x ]; then

    ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1

    route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1

  fi

  if [ x$old_ip_address != x ]; then

    eval "ifconfig $interface inet -alias $old_ip_address $medium"

    route delete $old_ip_address 127.1 >/dev/null 2>&1

    for router in $old_routers; do

      route delete default $router >/dev/null 2>&1

    done

    if [ -n "$old_static_routes" ]; then

      set -- $old_static_routes

      while [ $# -gt 1 ]; do

        route delete $1 $2

        shift; shift

      done

    fi

    arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' \

                                                |sh >/dev/null 2>&1

  fi

  if [ x$alias_ip_address != x ]; then

    ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg

    route add $alias_ip_address 127.0.0.1

  fi

  exit_with_hooks 0

fi

if [ x$reason = xTIMEOUT ]; then

  if [ x$alias_ip_address != x ]; then

    ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1

    route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1

  fi

  eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \

                                        $new_broadcast_arg $medium"

  $LOGGER "New IP Address ($interface): $new_ip_address"

  $LOGGER "New Subnet Mask ($interface): $new_subnet_mask"

  $LOGGER "New Broadcast Address ($interface): $new_broadcast_address"

  sleep 1

  if [ -n "$new_routers" ]; then

    $LOGGER "New Routers: $new_routers"

    echo $new_routers > /tmp/${interface}_router

    set -- $new_routers

    if ping -q -c 1 $1; then

      if [ x$new_ip_address != x$alias_ip_address ] && \

                        [ x$alias_ip_address != x ]; then

        ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg

        route add $alias_ip_address 127.0.0.1

      fi

      route add $new_ip_address 127.1 >/dev/null 2>&1

      for router in $new_routers; do

        route add default $router >/dev/null 2>&1

      done

      set -- $new_static_routes

      while [ $# -gt 1 ]; do

        route add $1 $2

        shift; shift

      done

      make_resolv_conf

      exit_with_hooks 0

    fi

  fi

  eval "ifconfig $interface inet -alias $new_ip_address $medium"

  for router in $old_routers; do

    route delete default $router >/dev/null 2>&1

  done

  if [ -n "$old_static_routes" ]; then

    set -- $old_static_routes

    while [ $# -gt 1 ]; do

      route delete $1 $2

      shift; shift

    done

  fi

  arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' \

                                                        |sh >/dev/null 2>&1

  exit_with_hooks 1

fi

exit_with_hooks 0