etc/rc.d/defaultroute

   1 #!/bin/sh
   2 #
   3 # Wait for the default route to be up if DHCP is in use
   4 #
   5 # $FreeBSD$
   6 #
   7
   8 # PROVIDE: defaultroute
   9 # REQUIRE: devd netif stf
  10 # KEYWORD: nojail
  11
  12 . /etc/rc.subr
  13 . /etc/network.subr
  14
  15 name="defaultroute"
  16 desc="Setup default router"
  17 start_cmd="defaultroute_start"
  18 stop_cmd=":"
  19
  20 # Does any interface have a carrier?
  21 defaultroute_carrier()
  22 {
  23         local carrier nocarrier
  24
  25         carrier=1
  26         for _if in ${dhcp_interfaces}; do
  27                 output=`/sbin/ifconfig ${_if}`
  28                 nocarrier=`expr "${output}" : '.*[[:blank:]]status: \(no carrier\)'`
  29                 [ -z "${nocarrier}" ] && carrier=0
  30         done
  31         return ${carrier}
  32 }
  33
  34 defaultroute_start()
  35 {
  36         local nl waited
  37
  38         afexists inet || return 0
  39
  40         # Return without waiting if we don't have dhcp interfaces or
  41         # if none of the dhcp interfaces is plugged in.
  42         dhcp_interfaces=`list_net_interfaces dhcp`
  43         [ -z "${dhcp_interfaces}" ] && return
  44
  45         # Wait for a default route
  46         waited=0
  47         while [ ${waited} -lt ${defaultroute_delay} ]; do
  48                 defif=`get_default_if -inet`
  49                 if [ -n "${defif}" ]; then
  50                         if [ ${waited} -ne 0 ]; then
  51                                 echo -n "($defif)"
  52                                 nl=1
  53                         fi
  54                         break
  55                 fi
  56                 if [ ${waited} -eq 0 ]; then
  57                         echo -n "Waiting ${defaultroute_delay}s for the default route interface: "
  58                 else
  59                         echo -n .
  60                 fi
  61                 if [ ${waited} -eq ${defaultroute_carrier_delay} ] && ! defaultroute_carrier; then
  62                         echo -n "(no carrier)"
  63                         break
  64                 fi
  65                 nl=1
  66                 sleep 1
  67                 waited=$(($waited + 1))
  68         done
  69
  70         [ -n "$nl" ] && echo
  71 }
  72
  73 load_rc_config $name
  74 run_rc_command "$1"