package/network/ipv6/6relayd/files/6relayd.init

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (c) 2011-2012 OpenWrt.org
   3 START=80
   4
   5 resolve_ifname() {
   6         grep -qs "^ *$1:" /proc/net/dev && {
   7                 append ifaces "$1"
   8         }
   9 }
  10
  11 resolve_network() {
  12         local ifn
  13         fixup_interface "$1"
  14         config_get ifn "$1" ifname
  15         [ -z "$ifn" ] && return 1
  16         resolve_ifname "$ifn"
  17 }
  18
  19 start_6relayd() {
  20         local cfg="$1"
  21         local mode="$2"
  22         local args="-s -l"
  23         local ifaces=""
  24
  25         SERVICE_DAEMONIZE=1
  26         SERVICE_WRITE_PID=1
  27         SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
  28         [ -f "$SERVICE_PID_FILE" ] && {
  29                 if grep -q 6relayd "/proc/$(cat $SERVICE_PID_FILE)/cmdline"; then
  30                         return 0
  31                 else
  32                         rm -f "$SERVICE_PID_FILE"
  33                 fi
  34         }
  35
  36         local net networks
  37         config_get networks "$cfg" network
  38         for net in $networks; do
  39                 resolve_network "$net" || {
  40                         return 1
  41                 }
  42         done
  43
  44         local ifn ifnames
  45         config_get ifnames "$cfg" ifname
  46         for ifn in $ifnames; do
  47                 resolve_ifname "$ifn"
  48         done
  49
  50         local rd
  51         config_get rd "$cfg" rd
  52         [ -n "$rd" ] && append args "-R$rd"
  53
  54         local dhcpv6
  55         config_get dhcpv6 "$cfg" dhcpv6
  56         [ -n "$dhcpv6" ] && append args "-D$dhcpv6"
  57
  58         local ndp
  59         config_get ndp "$cfg" ndp
  60         [ "$ndp" == "relay" ] && append args "-N -r"
  61
  62         local always_rewrite_dns
  63         config_get_bool always_rewrite_dns "$cfg" always_rewrite_dns 0
  64         [ $always_rewrite_dns -eq 1 ] && append args "-n"
  65
  66         # In server mode the first interface needs to be passed twice
  67         [ "$mode" == "server" ] && {
  68                 for iface in $ifaces; do
  69                         ifaces="$iface $ifaces"
  70                         break
  71                 done
  72         }
  73
  74         service_start /usr/sbin/6relayd $args $ifaces
  75 }
  76
  77 stop() {
  78         for pid in /var/run/6relayd-*.pid; do
  79                 SERVICE_PID_FILE="$pid"
  80                 service_stop /usr/sbin/6relayd
  81                 rm -f "$SERVICE_PID_FILE"
  82         done
  83 }
  84
  85 start() {
  86         include /lib/network
  87         config_load 6relayd
  88         config_foreach start_6relayd relay relay
  89         config_foreach start_6relayd server server
  90 }