client/scripts/freebsd

   1 #!/bin/sh
   2
   3 if [ -x /usr/bin/logger ]; then
   4         LOGGER="/usr/bin/logger -s -p user.notice -t dhclient"
   5 else
   6         LOGGER=echo
   7 fi
   8
   9 make_resolv_conf() {
  10   if [ "x$new_domain_name" != x ] && [ x"$new_domain_name_servers" != x ]; then
  11     echo search $new_domain_name >/etc/resolv.conf
  12     for nameserver in $new_domain_name_servers; do
  13       echo nameserver $nameserver >>/etc/resolv.conf
  14     done
  15   fi
  16 }
  17
  18 # Must be used on exit.   Invokes the local dhcp client exit hooks, if any.
  19 exit_with_hooks() {
  20   exit_status=$1
  21   if [ -f /etc/dhclient-exit-hooks ]; then
  22     . /etc/dhclient-exit-hooks
  23   fi
  24 # probably should do something with exit status of the local script
  25   exit $exit_status
  26 }
  27
  28 # Invoke the local dhcp client enter hooks, if they exist.
  29 if [ -f /etc/dhclient-enter-hooks ]; then
  30   exit_status=0
  31   . /etc/dhclient-enter-hooks
  32   # allow the local script to abort processing of this state
  33   # local script must set exit_status variable to nonzero.
  34   if [ $exit_status -ne 0 ]; then
  35     exit $exit_status
  36   fi
  37 fi
  38
  39 if [ x$new_network_number != x ]; then
  40    $LOGGER New Network Number: $new_network_number
  41 fi
  42
  43 if [ x$new_broadcast_address != x ]; then
  44  $LOGGER New Broadcast Address: $new_broadcast_address
  45   new_broadcast_arg="broadcast $new_broadcast_address"
  46 fi
  47 if [ x$old_broadcast_address != x ]; then
  48   old_broadcast_arg="broadcast $old_broadcast_address"
  49 fi
  50 if [ x$new_subnet_mask != x ]; then
  51   new_netmask_arg="netmask $new_subnet_mask"
  52 fi
  53 if [ x$old_subnet_mask != x ]; then
  54   old_netmask_arg="netmask $old_subnet_mask"
  55 fi
  56 if [ x$alias_subnet_mask != x ]; then
  57   alias_subnet_arg="netmask $alias_subnet_mask"
  58 fi
  59
  60 if [ x$reason = xMEDIUM ]; then
  61   eval "ifconfig $interface $medium"
  62   eval "ifconfig $interface inet -alias 0.0.0.0 $medium" >/dev/null 2>&1
  63   sleep 1
  64   exit_with_hooks 0
  65 fi
  66
  67 if [ x$reason = xPREINIT ]; then
  68   if [ x$alias_ip_address != x ]; then
  69     ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
  70     route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
  71   fi
  72   ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
  73                 broadcast 255.255.255.255 up
  74   exit_with_hooks 0
  75 fi
  76
  77 if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
  78   exit_with_hooks 0;
  79 fi
  80
  81 if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
  82    [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
  83   current_hostname=`hostname`
  84   if [ x$current_hostname = x ] || \
  85      [ x$current_hostname = x$old_host_name ]; then
  86     if [ x$current_hostname = x ] || \
  87        [ x$new_host_name != x$old_host_name ]; then
  88       $LOGGER "New Hostname: $new_host_name"
  89       hostname $new_host_name
  90     fi
  91   fi
  92   if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
  93                 [ x$alias_ip_address != x$old_ip_address ]; then
  94     ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
  95     route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
  96   fi
  97   if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]
  98    then
  99     eval "ifconfig $interface inet -alias $old_ip_address $medium"
 100     route delete $old_ip_address 127.1 >/dev/null 2>&1
 101     for router in $old_routers; do
 102       route delete default $router >/dev/null 2>&1
 103     done
 104     if [ "$old_static_routes" != "" ]; then
 105       set -- $old_static_routes
 106       while [ $# -gt 1 ]; do
 107         route delete $1 $2
 108         shift; shift
 109       done
 110     fi
 111     arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' |sh
 112   fi
 113   if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
 114      [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
 115     eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \
 116                                         $new_broadcast_arg $medium"
 117     $LOGGER "New IP Address($interface): $new_ip_address"
 118     $LOGGER "New Subnet Mask($interface): $new_subnet_mask"
 119     $LOGGER "New Broadcast Address($interface): $new_broadcast_address"
 120     if [ "$new_routers" != "" ]; then
 121       $LOGGER "New Routers: $new_routers"
 122     fi
 123     route add $new_ip_address 127.1 >/dev/null 2>&1
 124     for router in $new_routers; do
 125       route add default $router >/dev/null 2>&1
 126     done
 127     if [ "$new_static_routes" != "" ]; then
 128       $LOGGER "New Static Routes: $new_static_routes"
 129       set -- $new_static_routes
 130       while [ $# -gt 1 ]; do
 131         route add $1 $2
 132         shift; shift
 133       done
 134     fi
 135   fi
 136   if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
 137    then
 138     ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
 139     route add $alias_ip_address 127.0.0.1
 140   fi
 141   make_resolv_conf
 142   exit_with_hooks 0
 143 fi
 144
 145 if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
 146    || [ x$reason = xSTOP ]; then
 147   if [ x$alias_ip_address != x ]; then
 148     ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
 149     route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
 150   fi
 151   if [ x$old_ip_address != x ]; then
 152     eval "ifconfig $interface inet -alias $old_ip_address $medium"
 153     route delete $old_ip_address 127.1 >/dev/null 2>&1
 154     for router in $old_routers; do
 155       route delete default $router >/dev/null 2>&1
 156     done
 157     if [ "$old_static_routes" != "" ]; then
 158       set -- $old_static_routes
 159       while [ $# -gt 1 ]; do
 160         route delete $1 $2
 161         shift; shift
 162       done
 163     fi
 164     arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
 165                                                 |sh >/dev/null 2>&1
 166   fi
 167   if [ x$alias_ip_address != x ]; then
 168     ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
 169     route add $alias_ip_address 127.0.0.1
 170   fi
 171   exit_with_hooks 0
 172 fi
 173
 174 if [ x$reason = xTIMEOUT ]; then
 175   if [ x$alias_ip_address != x ]; then
 176     ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
 177     route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
 178   fi
 179   eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \
 180                                         $new_broadcast_arg $medium"
 181   $LOGGER "New IP Address($interface): $new_ip_address"
 182   $LOGGER "New Subnet Mask($interface): $new_subnet_mask"
 183   $LOGGER "New Broadcast Address($interface): $new_broadcast_address"
 184   sleep 1
 185   if [ "$new_routers" != "" ]; then
 186     $LOGGER "New Routers: $new_routers"
 187     set -- $new_routers
 188     if ping -q -c 1 $1; then
 189       if [ x$new_ip_address != x$alias_ip_address ] && \
 190                         [ x$alias_ip_address != x ]; then
 191         ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
 192         route add $alias_ip_address 127.0.0.1
 193       fi
 194       route add $new_ip_address 127.1 >/dev/null 2>&1
 195       for router in $new_routers; do
 196         route add default $router >/dev/null 2>&1
 197       done
 198       set -- $new_static_routes
 199       while [ $# -gt 1 ]; do
 200         route add $1 $2
 201         shift; shift
 202       done
 203       make_resolv_conf
 204       exit_with_hooks 0
 205     fi
 206   fi
 207   eval "ifconfig $interface inet -alias $new_ip_address $medium"
 208   for router in $old_routers; do
 209     route delete default $router >/dev/null 2>&1
 210   done
 211   if [ "$old_static_routes" != "" ]; then
 212     set -- $old_static_routes
 213     while [ $# -gt 1 ]; do
 214       route delete $1 $2
 215       shift; shift
 216     done
 217   fi
 218   arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' \
 219                                                         |sh >/dev/null 2>&1
 220   exit_with_hooks 1
 221 fi
 222
 223 exit_with_hooks 0