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

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (c) 2011-2012 OpenWrt.org
   3 START=80
   4 . /lib/functions/network.sh
   5 . /lib/functions/service.sh
   6
   7 start_6relayd() {
   8         local cfg="$1"
   9         local mode="$2"
  10         local args=""
  11
  12         SERVICE_DAEMONIZE=1
  13         SERVICE_WRITE_PID=1
  14         SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
  15         [ -f "$SERVICE_PID_FILE" ] && {
  16                 if grep -q 6relayd "/proc/$(cat $SERVICE_PID_FILE)/cmdline"; then
  17                         return 0
  18                 else
  19                         rm -f "$SERVICE_PID_FILE"
  20                 fi
  21         }
  22
  23         # Detect master interface
  24         local master masterif
  25         config_get masterif "$cfg" master
  26         network_get_device master "$masterif"
  27         [ -z "$master" ] && master="."
  28
  29         # Detect slave interfaces
  30         local slaves=""
  31         local slaveifs
  32         config_get slaveifs "$cfg" network
  33         for slaveif in $slaveifs; do
  34                 local slave
  35                 network_get_device slave "$slaveif"
  36                 # Compatibility with old config format
  37                 if [ "$mode" = "relay" -a "$master" = "." ]; then
  38                         [ -z "$slave" ] && return 0
  39                         master="$slave"
  40                 else
  41                         [ -n "$slave" ] && append slaves "$slave"
  42                         echo 1 > "/proc/sys/net/ipv6/conf/$slave/forwarding"
  43                 fi
  44         done
  45
  46         # Bail if no slaves are active
  47         [ -z "$slaves" ] && return 0
  48
  49         # Configure services
  50         local rd dhcpv6 ndp
  51         config_get rd "$cfg" rd
  52         config_get dhcpv6 "$cfg" dhcpv6
  53         config_get ndp "$cfg" ndp
  54
  55         # Test for fallback mode
  56         local fallback fallback_relay
  57         config_get fallback_relay "$cfg" fallback_relay
  58
  59         if [ -n "$fallback_relay" -a "$master" != "." ]; then
  60                 local prefix
  61                 network_get_prefix6 prefix "$masterif"
  62                 [ -z "$prefix" ] && fallback=1
  63         fi
  64
  65         if [ -n "$fallback" ]; then
  66                 for service in $fallback_relay; do
  67                         eval "$service=relay"
  68                 done
  69         fi
  70
  71         # Configure feature options
  72         local always_rewrite_dns
  73         config_get_bool always_rewrite_dns "$cfg" always_rewrite_dns 0
  74         [ "$always_rewrite_dns" -eq 1 ] && append args "-n"
  75
  76         local always_assume_default
  77         config_get_bool always_assume_default "$cfg" always_assume_default 0
  78         [ "$always_assume_default" -eq 1 ] && append args "-u"
  79
  80         [ "$ndp" = "relay" ] && append args "-N -s -l"
  81         [ "$rd" = "relay" ] && append args "-Rrelay"
  82         [ "$rd" = "server" ] && append args "-Rserver"
  83         [ "$dhcpv6" = "relay" ] && append args "-Drelay"
  84         [ "$dhcpv6" = "server" ] && append args "-Dserver"
  85         [ "$ndp" != "relay" -a "$rd" != "relay" -a "$dhcpv6" != "relay" ] && master="."
  86
  87         service_start /usr/sbin/6relayd $args $master $slaves
  88 }
  89
  90 restart_affected_6relayd() {
  91         local cfg="$1"
  92         local net="$2"
  93         local mode="$3"
  94
  95         local master slaves
  96         config_get master "$cfg" master
  97         config_get slaves "$cfg" network
  98
  99         for iface in $master $slaves; do
 100                 if [ "$iface" = "$net" ]; then
 101                         SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
 102                         service_stop /usr/sbin/6relayd
 103                         rm -f "$SERVICE_PID_FILE"
 104                         start_6relayd "$cfg" "$mode"
 105                 fi
 106         done
 107 }
 108
 109 restart_affected() {
 110         local net="$1"
 111         config_load 6relayd
 112         config_foreach restart_affected_6relayd server "$net"
 113         config_foreach restart_affected_6relayd relay "$net" "relay"
 114 }
 115
 116 stop() {
 117         for pid in /var/run/6relayd-*.pid; do
 118                 SERVICE_PID_FILE="$pid"
 119                 service_stop /usr/sbin/6relayd
 120                 rm -f "$SERVICE_PID_FILE"
 121         done
 122 }
 123
 124 start() {
 125         config_load 6relayd
 126         config_foreach start_6relayd server
 127         config_foreach start_6relayd relay relay
 128 }