ds-lite: add ds-lite network protocol handler

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36628 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 74 insertions, 0 deletions

diff --git a/package/network/ipv6/ds-lite/files/dslite.sh b/package/network/ipv6/ds-lite/files/dslite.sh
new file mode 100755
index 0000000000..67887881e1
--- /dev/null
+++ b/package/network/ipv6/ds-lite/files/dslite.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+# dslite.sh - IPv4-in-IPv6 tunnel backend
+# Copyright (c) 2013 OpenWrt.org
+
+[ -n "$INCLUDE_ONLY" ] || {
+	. /lib/functions.sh
+	. /lib/functions/network.sh
+	. ../netifd-proto.sh
+	init_proto "$@"
+}
+
+proto_dslite_setup() {
+	local cfg="$1"
+	local iface="$2"
+	local link="dslite-$cfg"
+
+	local mtu ttl peeraddr ip6addr tunlink
+	json_get_vars mtu ttl peeraddr ip6addr tunlink
+
+	[ -z "$peeraddr" ] && {
+		proto_notify_error "$cfg" "MISSING_ADDRESS"
+		proto_block_restart "$cfg"
+		return
+	}
+
+	( proto_add_host_dependency "$cfg" "::" "$tunlink" )
+
+	[ -z "$ip6addr" ] && {
+		local wanif="$tunlink"
+		if [ -z "$wanif" ] && ! network_find_wan6 wanif; then
+			proto_notify_error "$cfg" "NO_WAN_LINK"
+			return
+		fi
+
+		if ! network_get_ipaddr6 ip6addr "$wanif"; then
+			proto_notify_error "$cfg" "NO_WAN_LINK"
+			return
+		fi
+	}
+
+	proto_init_update "$link" 1
+	proto_add_ipv4_route "0.0.0.0" 0
+	proto_add_ipv4_address "192.0.0.2" "" "" "192.0.0.1"
+
+	proto_add_tunnel
+	json_add_string mode ipip6
+	json_add_int mtu "${mtu:-1280}"
+	json_add_int ttl "${ttl:-64}"
+	json_add_string local "$ip6addr"
+	json_add_string remote "$peeraddr"
+	[ -n "$tunlink" ] && json_add_string link "$tunlink"
+	proto_close_tunnel
+
+	proto_send_update "$cfg"
+}
+
+proto_dslite_teardown() {
+	local cfg="$1"
+}
+
+proto_dslite_init_config() {
+	no_device=1             
+	available=1
+
+	proto_config_add_string "ip6addr"
+	proto_config_add_string "peeraddr"
+	proto_config_add_string "tunlink"
+	proto_config_add_int "mtu"
+	proto_config_add_int "ttl"
+}
+
+[ -n "$INCLUDE_ONLY" ] || {
+        add_protocol dslite
+}