From 2703db3f2e9a8364bbabedff62f7f5804b33e99e Mon Sep 17 00:00:00 2001
From: Markus Gothe <markus.gothe@genexis.eu>
Date: Thu, 19 Jun 2025 16:17:12 +0200
Subject: [PATCH] mcastmngr: Add L2 snooping UCI generation.

If the WAN device is a bridge then generate
a default configuration using snooping instead
of proxying.
---
 .../etc/uci-defaults/61-mcast_config_generate | 63 ++++++++++++++++++-
 1 file changed, 60 insertions(+), 3 deletions(-)

diff --git a/mcastmngr/files/common/etc/uci-defaults/61-mcast_config_generate b/mcastmngr/files/common/etc/uci-defaults/61-mcast_config_generate
index 6340602ef..6e4ede23a 100644
--- a/mcastmngr/files/common/etc/uci-defaults/61-mcast_config_generate
+++ b/mcastmngr/files/common/etc/uci-defaults/61-mcast_config_generate
@@ -65,12 +65,69 @@ generate_igmp_proxy_config(){
 	uci add_list mcast.@proxy[-1].filter="239.0.0.0/8"
 }
 
+generate_mld_snooping_config(){
+	local u_itf="$1"
+
+	uci add mcast snooping
+	uci rename mcast.@snooping[-1]="mc_snooping_MLD"
+	uci set mcast.@snooping[-1].enable="1"
+	uci set mcast.@snooping[-1].proto="mld"
+	uci set mcast.@snooping[-1].version="2"
+	uci set mcast.@snooping[-1].robustness="2"
+	uci set mcast.@snooping[-1].query_interval="125"
+	uci set mcast.@snooping[-1].query_response_interval="100"
+	uci set mcast.@snooping[-1].last_member_query_interval="10"
+	uci set mcast.@snooping[-1].fast_leave="1"
+	uci set mcast.@snooping[-1].snooping_mode="2"
+	uci set mcast.@snooping[-1].interface="$u_itf"
+}
+
+generate_igmp_snooping_config(){
+	local u_itf="$1"
+
+	uci add mcast snooping
+	uci rename mcast.@snooping[-1]="igmp_snooping_1"
+	uci set mcast.@snooping[-1].enable="1"
+	uci set mcast.@snooping[-1].proto="igmp"
+	uci set mcast.@snooping[-1].version="2"
+	uci set mcast.@snooping[-1].robustness="2"
+	uci set mcast.@snooping[-1].query_interval="125"
+	uci set mcast.@snooping[-1].query_response_interval="100"
+	uci set mcast.@snooping[-1].last_member_query_interval="10"
+	uci set mcast.@snooping[-1].fast_leave="1"
+	uci set mcast.@snooping[-1].snooping_mode="2"
+	uci set mcast.@snooping[-1].interface="$u_itf"
+
+	uci add_list mcast.@snooping[-1].filter="239.0.0.0/8"
+}
+
+check_wan_bridge() {
+	local config="$1"
+	local wan_device="$2"
+	local name type
+
+	[ $((is_wan_bridge)) -ne 0 ] && return
+
+	config_get type "$config" type
+	config_get name "$config" name
+
+	[ "$type" = "bridge" -a "$wan_device" = "$name" ] && is_wan_bridge=1
+}
+
 generate_mcast_config(){
+	local up_itf="$(uci -q get network.wan.device)"
+	local is_wan_bridge=0
 
-	up_itf="$(uci -q get network.wan.device)"
+	config_load network
+	config_foreach check_wan_bridge device "$up_itf"
 
-	generate_igmp_proxy_config "$up_itf"
-	generate_mld_proxy_config "$up_itf"
+	if [ $((is_wan_bridge)) -eq 0 ]; then
+		generate_igmp_proxy_config "$up_itf"
+		generate_mld_proxy_config "$up_itf"
+	else
+		generate_igmp_snooping_config "$up_itf"
+		generate_mld_snooping_config "$up_itf"
+	fi
 }
 
 interfaces_ok(){