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 <n...@nbd.name>
---
net/bridge/br_input.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 232133a0fd21..7fa2da6985b5 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -155,6 +155,8 @@ int br_handle_frame_finish(struct net *net, struct sock
*sk, struct sk_buff *skb
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;
}
}
--
2.47.1
