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