6to4: Tos support

Tos support is added as a string parameter which can have the following values :
   -inherit (outer header inherits the tos value of the inner header)
   -hex value

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@42748 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/network/ipv6/6to4/files/6to4.sh b/package/network/ipv6/6to4/files/6to4.sh
index 2a9b262..ce1de53 100755 (executable)
--- a/package/network/ipv6/6to4/files/6to4.sh
+++ b/package/network/ipv6/6to4/files/6to4.sh
@@ -34,8 +34,8 @@ proto_6to4_setup() {
        local iface="$2"
        local link="6to4-$cfg"
 
-       local mtu ttl ipaddr sourcerouting
-       json_get_vars mtu ttl ipaddr sourcerouting
+       local mtu ttl tos ipaddr sourcerouting
+       json_get_vars mtu ttl tos ipaddr sourcerouting
 
        ( proto_add_host_dependency "$cfg" 0.0.0.0 )
 
@@ -77,6 +77,7 @@ proto_6to4_setup() {
        json_add_string mode sit
        json_add_int mtu "${mtu:-1280}"
        json_add_int ttl "${ttl:-64}"
+       [ -n "$tos" ] && json_add_string tos "$tos"
        json_add_string local "$ipaddr"
        proto_close_tunnel
 
@@ -94,6 +95,7 @@ proto_6to4_init_config() {
        proto_config_add_string "ipaddr"
        proto_config_add_int "mtu"
        proto_config_add_int "ttl"
+       proto_config_add_string "tos"
        proto_config_add_boolean "sourcerouting"
 }