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                 fi
  41         done
  42
  43         # Bail if no slaves are active
  44         [ -z "$slaves" ] && return 0
  45
  46         # Configure services
  47         local rd dhcpv6 ndp
  48         config_get rd "$cfg" rd
  49         config_get dhcpv6 "$cfg" dhcpv6
  50         config_get ndp "$cfg" ndp
  51
  52         # Test for fallback mode
  53         local fallback fallback_relay
  54         config_get fallback_relay "$cfg" fallback_relay
  55
  56         if [ -n "$fallback_relay" -a "$master" != "." ]; then
  57                 local prefix
  58                 network_get_prefix6 prefix "$masterif"
  59                 [ -z "$prefix" ] && fallback=1
  60         fi
  61
  62         if [ -n "$fallback" ]; then
  63                 for service in $fallback_relay; do
  64                         eval "$service=relay"
  65                 done
  66         fi
  67
  68         # Configure feature options
  69         local always_rewrite_dns
  70         config_get_bool always_rewrite_dns "$cfg" always_rewrite_dns 0
  71         [ "$always_rewrite_dns" -eq 1 ] && append args "-n"
  72
  73         local always_assume_default
  74         config_get_bool always_assume_default "$cfg" always_assume_default 0
  75         [ "$always_assume_default" -eq 1 ] && append args "-u"
  76
  77         [ "$ndp" = "relay" ] && append args "-N -s -l"
  78         [ "$rd" = "relay" ] && append args "-Rrelay"
  79         [ "$rd" = "server" ] && append args "-Rserver"
  80         [ "$dhcpv6" = "relay" ] && append args "-Drelay"
  81         [ "$dhcpv6" = "server" ] && append args "-Dserver"
  82         [ "$ndp" != "relay" -a "$rd" != "relay" -a "$dhcpv6" != "relay" ] && master="."
  83
  84         service_start /usr/sbin/6relayd $args $master $slaves
  85 }
  86
  87 restart_affected_6relayd() {
  88         local cfg="$1"
  89         local net="$2"
  90         local mode="$3"
  91
  92         local master slaves
  93         config_get master "$cfg" master
  94         config_get slaves "$cfg" network
  95
  96         for iface in $master $slaves; do
  97                 if [ "$iface" = "$net" ]; then
  98                         SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
  99                         service_stop /usr/sbin/6relayd
 100                         rm -f "$SERVICE_PID_FILE"
 101                         start_6relayd "$cfg" "$mode"
 102                 fi
 103         done
 104 }
 105
 106 restart_affected() {
 107         . /lib/functions/service.sh
 108         . /lib/functions/network.sh
 109         local net="$1"
 110         config_load 6relayd
 111         config_foreach restart_affected_6relayd server "$net"
 112         config_foreach restart_affected_6relayd relay "$net" "relay"
 113 }
 114
 115 stop() {
 116         . /lib/functions/service.sh
 117         for pid in /var/run/6relayd-*.pid; do
 118                 SERVICE_PID_FILE="$pid"
 119                 service_stop /usr/sbin/6relayd
 120                 rm -f "$SERVICE_PID_FILE"
 121         done
 122 }
 123
 124 start() {
 125         . /lib/functions/service.sh
 126         . /lib/functions/network.sh
 127         config_load 6relayd
 128         config_foreach start_6relayd server
 129         config_foreach start_6relayd relay relay
 130 }