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

   1 #!/bin/sh /etc/rc.common
   2 # Copyright (c) 2011-2012 OpenWrt.org
   3 START=80
   4 args=""
   5
   6 add_static_lease() {
   7         local cfg="$1"
   8
   9         local duid id
  10         config_get duid "$cfg" duid
  11         config_get id "$cfg" id
  12
  13         [ -n "$duid" -a -n "$id" ] && append args "-a$duid:$id"
  14
  15 }
  16
  17 start_6relayd() {
  18         local cfg="$1"
  19         local mode="$2"
  20         args="-l/tmp/hosts/6relayd,/usr/sbin/6relayd-update"
  21
  22         SERVICE_DAEMONIZE=1
  23         SERVICE_WRITE_PID=1
  24         SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
  25         [ -f "$SERVICE_PID_FILE" ] && {
  26                 if grep -q 6relayd "/proc/$(cat $SERVICE_PID_FILE)/cmdline"; then
  27                         return 0
  28                 else
  29                         rm -f "$SERVICE_PID_FILE"
  30                 fi
  31         }
  32
  33         # Detect master interface
  34         local master masterif
  35         config_get masterif "$cfg" master
  36         network_get_device master "$masterif"
  37         [ -z "$master" -o "$master" = "$masterif" ] && master="."
  38
  39         # Detect slave interfaces
  40         local slaves=""
  41         local slaveifs
  42         config_get slaveifs "$cfg" network
  43         for slaveif in $slaveifs; do
  44                 local slave
  45                 network_get_device slave "$slaveif"
  46                 # Compatibility with old config format
  47                 if [ "$mode" = "relay" -a "$master" = "." ]; then
  48                         [ -z "$slave" -o "$slave" = "$slaveif" ] && return 0
  49                         master="$slave"
  50                 else
  51                         [ -n "$slave" -o "$slave" = "$slaveif" ] && append slaves "$slave"
  52                 fi
  53         done
  54
  55         # Bail if no slaves are active
  56         [ -z "$slaves" ] && return 0
  57
  58         # Configure services
  59         local rd dhcpv6 ndp
  60         config_get rd "$cfg" rd
  61         config_get dhcpv6 "$cfg" dhcpv6
  62         config_get ndp "$cfg" ndp
  63
  64         # Test for fallback mode
  65         local fallback fallback_relay
  66         config_get fallback_relay "$cfg" fallback_relay
  67
  68         if [ -n "$fallback_relay" -a "$master" != "." ]; then
  69                 local prefix
  70                 network_get_prefix6 prefix "$masterif"
  71                 [ -z "$prefix" ] && fallback=1
  72         fi
  73
  74         if [ -n "$fallback" ]; then
  75                 for service in $fallback_relay; do
  76                         eval "$service=relay"
  77                 done
  78         fi
  79
  80         # Configure feature options
  81         local always_rewrite_dns rewrite_dns_addr
  82         config_get_bool always_rewrite_dns "$cfg" always_rewrite_dns 0
  83         config_get rewrite_dns_addr "$cfg" rewrite_dns_addr
  84         [ "$always_rewrite_dns" -eq 1 -o -n "$rewrite_dns_addr" ] && append args "-n$rewrite_dns_addr"
  85
  86         local always_assume_default
  87         config_get_bool always_assume_default "$cfg" always_assume_default 0
  88         [ "$always_assume_default" -eq 1 ] && append args "-u"
  89
  90         local compat_ula
  91         config_get_bool compat_ula "$cfg" compat_ula 0
  92         [ "$compat_ula" -eq 1 ] && append args "-c"
  93
  94         local management_level
  95         config_get management_level "$cfg" management_level
  96         [ -n "$management_level" ] && append args "-m$management_level"
  97
  98         local management_offlink
  99         config_get_bool management_offlink "$cfg" management_offlink 0
 100         [ "$management_offlink" -eq 1 ] && append args "-o"
 101
 102         local management_preference
 103         config_get management_preference "$cfg" management_preference
 104         [ -n "$management_preference" ] && append args "-i$management_preference"
 105
 106         config_foreach add_static_lease lease
 107
 108         [ "$ndp" = "relay" ] && append args "-N -s"
 109         [ "$rd" = "relay" ] && append args "-Rrelay"
 110         [ "$rd" = "server" ] && append args "-Rserver"
 111         [ "$dhcpv6" = "relay" ] && append args "-Drelay"
 112         [ "$dhcpv6" = "server" ] && append args "-Dserver"
 113         [ "$ndp" != "relay" -a "$rd" != "relay" -a "$dhcpv6" != "relay" ] && master="."
 114
 115         service_start /usr/sbin/6relayd $args $master $slaves
 116 }
 117
 118 restart_affected_6relayd() {
 119         local cfg="$1"
 120         local net="$2"
 121         local mode="$3"
 122
 123         local master slaves
 124         config_get master "$cfg" master
 125         config_get slaves "$cfg" network
 126
 127         for iface in $master $slaves; do
 128                 if [ "$iface" = "$net" ]; then
 129                         SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
 130                         service_stop /usr/sbin/6relayd
 131                         rm -f "$SERVICE_PID_FILE"
 132                         start_6relayd "$cfg" "$mode"
 133                 fi
 134         done
 135 }
 136
 137 restart_affected() {
 138         . /lib/functions/service.sh
 139         . /lib/functions/network.sh
 140         local net="$1"
 141         config_load 6relayd
 142         config_foreach restart_affected_6relayd server "$net"
 143         config_foreach restart_affected_6relayd relay "$net" "relay"
 144 }
 145
 146 stop() {
 147         . /lib/functions/service.sh
 148         for pid in /var/run/6relayd-*.pid; do
 149                 SERVICE_PID_FILE="$pid"
 150                 service_stop /usr/sbin/6relayd
 151                 rm -f "$SERVICE_PID_FILE"
 152         done
 153 }
 154
 155 start() {
 156         . /lib/functions/service.sh
 157         . /lib/functions/network.sh
 158         config_load 6relayd
 159         config_foreach start_6relayd server
 160         config_foreach start_6relayd relay relay
 161 }