dist/dhcp/client/scripts/bsdos

   1 #!/bin/sh
   2
   3 make_resolv_conf() {
   4   if [ "x$new_domain_name" != x ] && [ x"$new_domain_name_servers" != x ]; then
   5     echo search $new_domain_name >/etc/resolv.conf
   6     for nameserver in $new_domain_name_servers; do
   7       echo nameserver $nameserver >>/etc/resolv.conf
   8     done
   9   fi
  10 }
  11
  12 # Must be used on exit.   Invokes the local dhcp client exit hooks, if any.
  13 exit_with_hooks() {
  14   exit_status=$1
  15   if [ -f /etc/dhclient-exit-hooks ]; then
  16     . /etc/dhclient-exit-hooks
  17   fi
  18 # probably should do something with exit status of the local script
  19   exit $exit_status
  20 }
  21
  22 # Invoke the local dhcp client enter hooks, if they exist.
  23 if [ -f /etc/dhclient-enter-hooks ]; then
  24   exit_status=0
  25   . /etc/dhclient-enter-hooks
  26   # allow the local script to abort processing of this state
  27   # local script must set exit_status variable to nonzero.
  28   if [ $exit_status -ne 0 ]; then
  29     exit $exit_status
  30   fi
  31 fi
  32
  33 if [ x$new_network_number != x ]; then
  34    echo New Network Number: $new_network_number
  35 fi
  36
  37 if [ x$new_broadcast_address != x ]; then
  38  echo New Broadcast Address: $new_broadcast_address
  39   new_broadcast_arg="broadcast $new_broadcast_address"
  40 fi
  41 if [ x$old_broadcast_address != x ]; then
  42   old_broadcast_arg="broadcast $old_broadcast_address"
  43 fi
  44 if [ x$new_subnet_mask != x ]; then
  45   new_netmask_arg="netmask $new_subnet_mask"
  46 fi
  47 if [ x$old_subnet_mask != x ]; then
  48   old_netmask_arg="netmask $old_subnet_mask"
  49 fi
  50 if [ x$alias_subnet_mask != x ]; then
  51   alias_subnet_arg="netmask $alias_subnet_mask"
  52 fi
  53
  54 if [ x$reason = xMEDIUM ]; then
  55   eval "ifconfig $interface $medium"
  56   eval "ifconfig $interface inet -alias 0.0.0.0 $medium" >/dev/null 2>&1
  57   sleep 1
  58   exit_with_hooks 0
  59 fi
  60
  61 if [ x$reason = xPREINIT ]; then
  62   if [ x$alias_ip_address != x ]; then
  63     ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
  64     route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
  65   fi
  66   ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
  67                 broadcast 255.255.255.255 up
  68   exit_with_hooks 0
  69 fi
  70
  71 if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
  72   exit_with_hooks 0;
  73 fi
  74
  75 if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
  76    [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
  77   current_hostname=`hostname`
  78   if [ x$current_hostname = x ] || \
  79      [ x$current_hostname = x$old_host_name ]; then
  80     if [ x$current_hostname = x ] || \
  81        [ x$new_host_name != x$old_host_name ]; then
  82       hostname $new_host_name
  83     fi
  84   fi
  85
  86   if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
  87                 [ x$alias_ip_address != x$old_ip_address ]; then
  88     ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
  89     route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
  90   fi
  91   if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]
  92    then
  93     eval "ifconfig $interface inet -alias $old_ip_address $medium"
  94     route delete $old_ip_address 127.1 >/dev/null 2>&1
  95     for router in $old_routers; do
  96       route delete default $router >/dev/null 2>&1
  97     done
  98     if [ "$old_static_routes" != "" ]; then
  99       set $old_static_routes
 100       while [ $# -gt 1 ]; do
 101         route delete $1 $2
 102         shift; shift
 103       done
 104     fi
 105     arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' |sh
 106   fi
 107   if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
 108      [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
 109     eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \
 110                                         $new_broadcast_arg $medium"
 111     route add $new_ip_address 127.1 >/dev/null 2>&1
 112     for router in $new_routers; do
 113       route add default $router >/dev/null 2>&1
 114     done
 115     if [ "$new_static_routes" != "" ]; then
 116       set $new_static_routes
 117       while [ $# -gt 1 ]; do
 118         route add $1 $2
 119         shift; shift
 120       done
 121     fi
 122   fi
 123   if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
 124    then
 125     ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
 126     route add $alias_ip_address 127.0.0.1
 127   fi
 128   make_resolv_conf
 129   exit_with_hooks 0
 130 fi
 131
 132 if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
 133    || [ x$reason = xSTOP ]; then
 134   if [ x$alias_ip_address != x ]; then
 135     ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
 136     route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
 137   fi
 138   if [ x$old_ip_address != x ]; then
 139     eval "ifconfig $interface inet -alias $old_ip_address $medium"
 140     route delete $old_ip_address 127.1 >/dev/null 2>&1
 141     for router in $old_routers; do
 142       route delete default $router >/dev/null 2>&1
 143     done
 144     if [ "$old_static_routes" != "" ]; then
 145       set $old_static_routes
 146       while [ $# -gt 1 ]; do
 147         route delete $1 $2
 148         shift; shift
 149       done
 150     fi
 151     arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
 152                                                 |sh >/dev/null 2>&1
 153   fi
 154   if [ x$alias_ip_address != x ]; then
 155     ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
 156     route add $alias_ip_address 127.0.0.1
 157   fi
 158   exit_with_hooks 0
 159 fi
 160
 161 if [ x$reason = xTIMEOUT ]; then
 162   if [ x$alias_ip_address != x ]; then
 163     ifconfig $interface inet -alias $alias_ip_address > /dev/null 2>&1
 164     route delete $alias_ip_address 127.0.0.1 > /dev/null 2>&1
 165   fi
 166   eval "ifconfig $interface inet $new_ip_address $new_netmask_arg \
 167                                         $new_broadcast_arg $medium"
 168   sleep 1
 169   if [ "$new_routers" != "" ]; then
 170     set $new_routers
 171     if ping -q -c 1 -w 1 $1; then
 172       if [ x$new_ip_address != x$alias_ip_address ] && \
 173                         [ x$alias_ip_address != x ]; then
 174         ifconfig $interface inet alias $alias_ip_address $alias_subnet_arg
 175         route add $alias_ip_address 127.0.0.1
 176       fi
 177       route add $new_ip_address 127.1 >/dev/null 2>&1
 178       for router in $new_routers; do
 179         route add default $router >/dev/null 2>&1
 180       done
 181       set $new_static_routes
 182       while [ $# -gt 1 ]; do
 183         route add $0 $1
 184         shift; shift
 185       done
 186       make_resolv_conf
 187       exit_with_hooks 0
 188     fi
 189   fi
 190   eval "ifconfig $interface inet -alias $new_ip_address $medium"
 191   for router in $old_routers; do
 192     route delete default $router >/dev/null 2>&1
 193   done
 194   if [ "$old_static_routes" != "" ]; then
 195     set $old_static_routes
 196     while [ $# -gt 1 ]; do
 197       route delete $1 $2
 198       shift; shift
 199     done
 200   fi
 201   arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
 202                                                         |sh >/dev/null 2>&1
 203   exit_with_hooks 1
 204 fi
 205
 206 exit_with_hooks 0