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