6relayd: Rewrite init-script logic

[openwrt/svn-archive/archive.git] / package / network / ipv6 / 6relayd / files / 6relayd.init

diff --git a/package/network/ipv6/6relayd/files/6relayd.init b/package/network/ipv6/6relayd/files/6relayd.init
index 8c50336d0cb2da1ac52b4d2473a63b8f6d00ddf7..790396e574a0a116d48e5d1f445928a352415612 100644 (file)
--- a/package/network/ipv6/6relayd/files/6relayd.init
+++ b/package/network/ipv6/6relayd/files/6relayd.init
@@ -1,26 +1,13 @@
 #!/bin/sh /etc/rc.common
 # Copyright (c) 2011-2012 OpenWrt.org
 START=80
-
-resolve_ifname() {
-       grep -qs "^ *$1:" /proc/net/dev && {
-               append ifaces "$1"
-       }
-}
-
-resolve_network() {
-       local ifn
-       fixup_interface "$1"
-       config_get ifn "$1" ifname
-       [ -z "$ifn" ] && return 1
-       resolve_ifname "$ifn"
-}
+. /lib/functions/network.sh
+. /lib/functions/service.sh
 
 start_6relayd() {
        local cfg="$1"
        local mode="$2"
-       local args="-s -l"
-       local ifaces=""
+       local args=""
 
        SERVICE_DAEMONIZE=1
        SERVICE_WRITE_PID=1
@@ -33,40 +20,96 @@ start_6relayd() {
                fi
        }
 
-       local net networks
-       config_get networks "$cfg" network
-       for net in $networks; do
-               resolve_network "$net" || {
-                       return 1
-               }
-       done
+       # Detect master interface
+       local master masterif
+       config_get masterif "$cfg" master
+       network_get_device master "$masterif"
+       [ -z "$master" ] && master="."
 
-       local ifn ifnames
-       config_get ifnames "$cfg" ifname
-       for ifn in $ifnames; do
-               resolve_ifname "$ifn"
+       # Detect slave interfaces
+       local slaves=""
+       local slaveifs
+       config_get slaveifs "$cfg" network
+       for slaveif in $slaveifs; do
+               local slave
+               network_get_device slave "$slaveif"
+               # Compatibility with old config format
+               if [ "$mode" = "relay" -a "$master" = "." ]; then
+                       [ -z "$slave" ] && return 0
+                       master="$slave"
+               else
+                       [ -n "$slave" ] && append slaves "$slave"
+               fi
        done
 
-       local rd
-       config_get rd "$cfg" rd
-       [ -n "$rd" ] && append args "-R$rd"
+       # Bail if no slaves are active
+       [ -z "$slaves" ] && return 0
 
-       local dhcpv6
+       # Configure services
+       local rd dhcpv6 ndp
+       config_get rd "$cfg" rd
        config_get dhcpv6 "$cfg" dhcpv6
-       [ -n "$dhcpv6" ] && append args "-D$dhcpv6"
-
-       local ndp
        config_get ndp "$cfg" ndp
-       [ "$ndp" == "relay" ] && append args "-N -r"
 
+       # Test for fallback mode
+       local fallback fallback_relay
+       config_get fallback_relay "$cfg" fallback_relay
+
+       if [ -n "$fallback_relay" -a "$master" != "." ]; then
+               local prefix
+               network_get_prefix6 prefix "$masterif"
+               [ -z "$prefix" ] && fallback=1
+       fi
+
+       if [ -n "$fallback" ]; then
+               for service in $fallback_relay; do
+                       eval "$service=relay"
+               done
+       fi
+
+       # Configure feature options
        local always_rewrite_dns
        config_get_bool always_rewrite_dns "$cfg" always_rewrite_dns 0
-       [ $always_rewrite_dns -eq 1 ] && append args "-n"
+       [ "$always_rewrite_dns" -eq 1 ] && append args "-n"
+
+       local always_assume_default
+       config_get_bool always_assume_default "$cfg" always_assume_default 0
+       [ "$always_assume_default" -eq 1 ] && append args "-u"
+
+       [ "$ndp" = "relay" ] && append args "-N -s -l"
+       [ "$rd" = "relay" ] && append args "-Rrelay"
+       [ "$rd" = "server" ] && append args "-Rserver"
+       [ "$dhcpv6" = "relay" ] && append args "-Drelay"
+       [ "$dhcpv6" = "server" ] && append args "-Dserver"
+       [ "$ndp" != "relay" -a "$rd" != "relay" -a "$dhcpv6" != "relay" ] && master="."
+
+       service_start /usr/sbin/6relayd $args $master $slaves
+}
+
+restart_affected_6relayd() {
+       local cfg="$1"
+       local net="$2"
+       local mode="$3"
 
-       # In server mode the first interface needs to be passed twice
-       [ "$mode" == "server" ] && ifaces=". $ifaces"
+       local master slaves
+       config_get master "$cfg" master
+       config_get slaves "$cfg" network
 
-       service_start /usr/sbin/6relayd $args $ifaces
+       for iface in $master $slaves; do
+               if [ "$iface" = "$net" ]; then
+                       SERVICE_PID_FILE="/var/run/6relayd-$cfg.pid"
+                       service_stop /usr/sbin/6relayd
+                       rm -f "$SERVICE_PID_FILE"
+                       start_6relayd "$cfg" "$mode"
+               fi
+       done
+}
+
+restart_affected() {
+       local net="$1"
+       config_load 6relayd
+       config_foreach restart_affected_6relayd server "$net"
+       config_foreach restart_affected_6relayd relay "$net" "relay"
 }
 
 stop() {
@@ -78,8 +121,7 @@ stop() {
 }
 
 start() {
-       include /lib/network
        config_load 6relayd
+       config_foreach start_6relayd server
        config_foreach start_6relayd relay relay
-       config_foreach start_6relayd server server
 }