6rd: add support for native IPv6 prefix handling

SVN-Revision: 35173

package/network/ipv6/6rd/Makefile

@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=6rd
-PKG_VERSION:=2
+PKG_VERSION:=3
 PKG_RELEASE:=1
 
 include $(INCLUDE_DIR)/package.mk

package/network/ipv6/6rd/files/6rd.sh

@@ -42,8 +42,12 @@ proto_6rd_setup() {
 	local ip6subnet=$(6rdcalc "$ip6prefix/$ip6prefixlen" "$ipaddr/$ip4prefixlen")
 	local ip6addr="${ip6subnet%%::*}::1"
 
+	# Determine the IPv6 prefix
+	local ip6lanprefix="$ip6subnet/$(($ip6prefixlen + 32 - $ip4prefixlen))"
+
 	proto_init_update "$link" 1
 	proto_add_ipv6_address "$ip6addr" "$ip6prefixlen"
+	proto_add_ipv6_prefix "$ip6lanprefix"
 	proto_add_ipv6_route "::" 0 "::$peeraddr"
 
 	proto_add_tunnel