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 start_6relayd() {
   6         local cfg="$1"
   7         local mode="$2"
   8         local args=""
   9
  10         SERVICE_DAEMONIZE=1
  11         SERVICE_WRITE_PID=1
  12         SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
  13         [ -f "$SERVICE_PID_FILE" ] && {
  14                 if grep -q 6relayd "/proc/$(cat $SERVICE_PID_FILE)/cmdline"; then
  15                         return 0
  16                 else
  17                         rm -f "$SERVICE_PID_FILE"
  18                 fi
  19         }
  20
  21         # Detect master interface
  22         local master masterif
  23         config_get masterif "$cfg" master
  24         network_get_device master "$masterif"
  25         [ -z "$master" ] && master="."
  26
  27         # Detect slave interfaces
  28         local slaves=""
  29         local slaveifs
  30         config_get slaveifs "$cfg" network
  31         for slaveif in $slaveifs; do
  32                 local slave
  33                 network_get_device slave "$slaveif"
  34                 # Compatibility with old config format
  35                 if [ "$mode" = "relay" -a "$master" = "." ]; then
  36                         [ -z "$slave" ] && return 0
  37                         master="$slave"
  38                 else
  39                         [ -n "$slave" ] && append slaves "$slave"
  40                         echo 1 > "/proc/sys/net/ipv6/conf/$slave/forwarding"
  41                 fi
  42         done
  43
  44         # Bail if no slaves are active
  45         [ -z "$slaves" ] && return 0
  46
  47         # Configure services
  48         local rd dhcpv6 ndp
  49         config_get rd "$cfg" rd
  50         config_get dhcpv6 "$cfg" dhcpv6
  51         config_get ndp "$cfg" ndp
  52
  53         # Test for fallback mode
  54         local fallback fallback_relay
  55         config_get fallback_relay "$cfg" fallback_relay
  56
  57         if [ -n "$fallback_relay" -a "$master" != "." ]; then
  58                 local prefix
  59                 network_get_prefix6 prefix "$masterif"
  60                 [ -z "$prefix" ] && fallback=1
  61         fi
  62
  63         if [ -n "$fallback" ]; then
  64                 for service in $fallback_relay; do
  65                         eval "$service=relay"
  66                 done
  67         fi
  68
  69         # Configure feature options
  70         local always_rewrite_dns
  71         config_get_bool always_rewrite_dns "$cfg" always_rewrite_dns 0
  72         [ "$always_rewrite_dns" -eq 1 ] && append args "-n"
  73
  74         local always_assume_default
  75         config_get_bool always_assume_default "$cfg" always_assume_default 0
  76         [ "$always_assume_default" -eq 1 ] && append args "-u"
  77
  78         [ "$ndp" = "relay" ] && append args "-N -s -l"
  79         [ "$rd" = "relay" ] && append args "-Rrelay"
  80         [ "$rd" = "server" ] && append args "-Rserver"
  81         [ "$dhcpv6" = "relay" ] && append args "-Drelay"
  82         [ "$dhcpv6" = "server" ] && append args "-Dserver"
  83         [ "$ndp" != "relay" -a "$rd" != "relay" -a "$dhcpv6" != "relay" ] && master="."
  84
  85         service_start /usr/sbin/6relayd $args $master $slaves
  86 }
  87
  88 restart_affected_6relayd() {
  89         local cfg="$1"
  90         local net="$2"
  91         local mode="$3"
  92
  93         local master slaves
  94         config_get master "$cfg" master
  95         config_get slaves "$cfg" network
  96
  97         for iface in $master $slaves; do
  98                 if [ "$iface" = "$net" ]; then
  99                         SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
 100                         service_stop /usr/sbin/6relayd
 101                         rm -f "$SERVICE_PID_FILE"
 102                         start_6relayd "$cfg" "$mode"
 103                 fi
 104         done
 105 }
 106
 107 restart_affected() {
 108         . /lib/functions/service.sh
 109         . /lib/functions/network.sh
 110         local net="$1"
 111         config_load 6relayd
 112         config_foreach restart_affected_6relayd server "$net"
 113         config_foreach restart_affected_6relayd relay "$net" "relay"
 114 }
 115
 116 stop() {
 117         . /lib/functions/service.sh
 118         for pid in /var/run/6relayd-*.pid; do
 119                 SERVICE_PID_FILE="$pid"
 120                 service_stop /usr/sbin/6relayd
 121                 rm -f "$SERVICE_PID_FILE"
 122         done
 123 }
 124
 125 start() {
 126         . /lib/functions/service.sh
 127         . /lib/functions/network.sh
 128         config_load 6relayd
 129         config_foreach start_6relayd server
 130         config_foreach start_6relayd relay relay
 131 }