if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
br_multicast_querier_exists(br, eth_hdr(skb), mdst)) {
if ((mdst && mdst->host_joined) ||
- br_multicast_is_router(br)) {
+ br_multicast_is_router(br, skb)) {
local_rcv = true;
br->dev->stats.multicast++;
}
spin_lock(&br->multicast_lock);
if (br->multicast_router == MDB_RTR_TYPE_DISABLED ||
br->multicast_router == MDB_RTR_TYPE_PERM ||
- timer_pending(&br->ip4_mc_router_timer))
+ br_ip4_multicast_is_router(br) ||
+ br_ip6_multicast_is_router(br))
goto out;
br_mc_router_state_change(br, false);
bool is_router;
spin_lock_bh(&br->multicast_lock);
- is_router = br_multicast_is_router(br);
+ is_router = br_multicast_is_router(br, NULL);
spin_unlock_bh(&br->multicast_lock);
return is_router;
}
return hlist_entry_safe(rp, struct net_bridge_port, ip4_rlist);
}
-static inline bool br_multicast_is_router(struct net_bridge *br)
+static inline bool br_ip4_multicast_is_router(struct net_bridge *br)
{
- return br->multicast_router == 2 ||
- (br->multicast_router == 1 &&
- timer_pending(&br->ip4_mc_router_timer));
+ return timer_pending(&br->ip4_mc_router_timer);
+}
+
+static inline bool br_ip6_multicast_is_router(struct net_bridge *br)
+{
+#if IS_ENABLED(CONFIG_IPV6)
+ return timer_pending(&br->ip4_mc_router_timer);
+#else
+ return false;
+#endif
+}
+
+static inline bool
+br_multicast_is_router(struct net_bridge *br, struct sk_buff *skb)
+{
+ switch (br->multicast_router) {
+ case MDB_RTR_TYPE_PERM:
+ return true;
+ case MDB_RTR_TYPE_TEMP_QUERY:
+ if (skb) {
+ if (skb->protocol == htons(ETH_P_IP))
+ return br_ip4_multicast_is_router(br);
+ else if (skb->protocol == htons(ETH_P_IPV6))
+ return br_ip6_multicast_is_router(br);
+ } else {
+ return br_ip4_multicast_is_router(br) ||
+ br_ip6_multicast_is_router(br);
+ }
+ fallthrough;
+ default:
+ return false;
+ }
}
static inline bool