mirror of
https://github.com/coolsnowwolf/lede.git
synced 2025-06-08 11:32:05 +08:00
25 lines
802 B
Diff
25 lines
802 B
Diff
|
From: Felix Fietkau <nbd@nbd.name>
|
||
|
|
Date: Mon, 17 Feb 2025 12:21:08 +0100
|
||
|
|
Subject: [PATCH] net: bridge: locally receive all multicast packets if
|
||
|
|
IFF_ALLMULTI is set
|
||
|
|
|
||
|
|
If multicast snooping is enabled, multicast packets may not always end up on
|
||
|
|
the local bridge interface, if the host is not a member of the multicast
|
||
|
|
group. Similar to how IFF_PROMISC allows all packets to be received locally,
|
||
|
|
let IFF_ALLMULTI allow all multicast packets to be received.
|
||
|
|
|
||
|
|
Signed-off-by: Felix Fietkau <nbd@nbd.name>
|
||
|
|
---
|
||
|
|
|
||
|
|
--- a/net/bridge/br_input.c
|
||
|
|
+++ b/net/bridge/br_input.c
|
||
|
|
@@ -152,6 +152,8 @@ int br_handle_frame_finish(struct net *n
|
||
|
|
pkt_type = BR_PKT_MULTICAST;
|
||
|
|
if (br_multicast_rcv(&brmctx, &pmctx, vlan, skb, vid))
|
||
|
|
goto drop;
|
||
|
|
+ if (br->dev->flags & IFF_ALLMULTI)
|
||
|
|
+ local_rcv = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|