From 83ef4411d0f72fc6f137b189173d99ad0769cbef Mon Sep 17 00:00:00 2001
From: cyrus <cyrus@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Thu, 6 Dec 2012 20:52:40 +0000
Subject: ipv6-support: next iteration * Introduce mode 6rd * Introduce mode
 6to4 * Fix announcement of DNS-Servers received from DHCPv6 * Fix some
 corner-cases in relaying behaviour

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34542 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 package/network/ipv6/ipv6-support/Makefile         |  2 +-
 package/network/ipv6/ipv6-support/files/dhcpv6.sh  |  3 +-
 .../ipv6/ipv6-support/files/network6.config        |  6 ----
 package/network/ipv6/ipv6-support/files/support.sh | 36 +++++++++++++++++++---
 4 files changed, 35 insertions(+), 12 deletions(-)

(limited to 'package/network/ipv6/ipv6-support')

diff --git a/package/network/ipv6/ipv6-support/Makefile b/package/network/ipv6/ipv6-support/Makefile
index 21d5c00f9..c921105c9 100644
--- a/package/network/ipv6/ipv6-support/Makefile
+++ b/package/network/ipv6/ipv6-support/Makefile
@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=ipv6-support
-PKG_VERSION:=2012-12-03
+PKG_VERSION:=2012-12-06
 PKG_RELEASE:=1
 
 include $(INCLUDE_DIR)/package.mk
diff --git a/package/network/ipv6/ipv6-support/files/dhcpv6.sh b/package/network/ipv6/ipv6-support/files/dhcpv6.sh
index 1d19a681d..b9428dd33 100755
--- a/package/network/ipv6/ipv6-support/files/dhcpv6.sh
+++ b/package/network/ipv6/ipv6-support/files/dhcpv6.sh
@@ -39,8 +39,9 @@ config_get prefix_fallback "$network" prefix_fallback
 
 local peerdns
 config_get_bool peerdns "$network" peerdns 0
-[ "peerdns" -eq "1" ] && {
+[ "$peerdns" -eq "1" ] && {
 	proto_init_update "*" 1
+	proto_set_keep 1
 	for server in $RDNSS; do
 		proto_add_dns_server "$server"
 	done
diff --git a/package/network/ipv6/ipv6-support/files/network6.config b/package/network/ipv6/ipv6-support/files/network6.config
index 4fc22d0fa..853918b22 100644
--- a/package/network/ipv6/ipv6-support/files/network6.config
+++ b/package/network/ipv6/ipv6-support/files/network6.config
@@ -5,14 +5,8 @@ config interface wan
 	option prefix_fallback	relay
 	option peerdns		1	
 
-
 config interface lan
 	option mode		router
 	option advertise_prefix	64
 	option relay_master	wan
 
-
-config interface 6in4
-	option mode		static
-	list static_prefix	2001:DB8::/48
-
diff --git a/package/network/ipv6/ipv6-support/files/support.sh b/package/network/ipv6/ipv6-support/files/support.sh
index 479ed680a..37173781a 100644
--- a/package/network/ipv6/ipv6-support/files/support.sh
+++ b/package/network/ipv6/ipv6-support/files/support.sh
@@ -52,7 +52,6 @@ resolve_network_add() {
 	local __section="$1"
 	local __device="$2"
 	local __return="$3"
-
 	local __cdevice
 	network_get_device __cdevice "$__section"
 	[ "$__cdevice" != "$__device" ] && return
@@ -154,6 +153,10 @@ add_relay_slave() {
 	# Disable any active distribution
 	[ "$__cmode" == "router" ] && disable_router "$__section"
 
+	# Configure interface to accept RA and send RS
+	conf_set "$__device" accept_ra 2
+	conf_set "$__device" forwarding 2
+
 	eval "$__return"'="$'"$__return"' '"$__device"'"'
 }
 
@@ -286,8 +289,8 @@ enable_static() {
 		ula_prefix="fd$r1:$r2:$r3::/48"
 
 		# Save prefix so it will be preserved across reboots
-		uci set network6.$network.ula_prefix=$ula_prefix
-		uci commit network6
+		uci_set network6 "$network" ula_prefix "$ula_prefix"
+		uci_commit network6
 	}
 
 	# Announce ULA
@@ -313,10 +316,15 @@ enable_router() {
 
 	# Start RD & DHCPv6 service
 	local pid="/var/run/ipv6-router-$network.pid"
-	start_service "/usr/sbin/6relayd -Rserver -Dserver . $device" "$pid"
+
+	# Start server
+	start_service "/usr/sbin/6relayd -S . $device" "$pid"
 
 	# Try relaying if necessary
 	restart_master_relay "$network"
+
+	# start relay if there are forced relay members
+	restart_relay "$network"
 }
 
 
@@ -355,6 +363,25 @@ enable_dhcpv6() {
 }
 
 
+enable_6to4() {
+	local network="$1"
+	local device="$2"
+	local mode="$3"
+
+	local prefixlen="48"
+	[ "$mode" == "6rd" ] && {
+		local ip4prefix=$(uci_get network "$network" ip4prefixlen 0)
+		local ip6prefix=$(uci_get network "$network" ip6prefixlen 32)
+		prefixlen=$(($ip6prefix + 32 - $ip4prefix))
+	}
+
+	local prefix=""
+	network_get_ipaddr6 prefix "$network"
+
+	announce_prefix "$prefix/$prefixlen" "$network"
+}
+
+
 enable_interface()
 {
 	local network="$1"
@@ -370,5 +397,6 @@ enable_interface()
 	[ "$mode" == "dhcpv6" -o "$mode" == "static" ] && enable_static "$network" "$device"
 	[ "$mode" == "dhcpv6" ] && enable_dhcpv6 "$network" "$device"
 	[ "$mode" == "router" ] && enable_router "$network" "$device"
+	[ "$mode" == "6to4" -o "$mode" == "6rd" ] && enable_6to4 "$network" "$device" "$mode"
 	[ "$mode" == "relay" ] && restart_master_relay "$network" forced
 }
-- 
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