38c21271d2
Fixes issues with odhcpd, especially in relay mode Signed-off-by: Felix Fietkau <nbd@nbd.name>
25 lines
802 B
Diff
25 lines
802 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Mon, 17 Feb 2025 12:21:08 +0100
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Subject: [PATCH] net: bridge: locally receive all multicast packets if
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IFF_ALLMULTI is set
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If multicast snooping is enabled, multicast packets may not always end up on
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the local bridge interface, if the host is not a member of the multicast
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group. Similar to how IFF_PROMISC allows all packets to be received locally,
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let IFF_ALLMULTI allow all multicast packets to be received.
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/bridge/br_input.c
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+++ b/net/bridge/br_input.c
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@@ -152,6 +152,8 @@ int br_handle_frame_finish(struct net *n
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pkt_type = BR_PKT_MULTICAST;
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if (br_multicast_rcv(&brmctx, &pmctx, vlan, skb, vid))
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goto drop;
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+ if (br->dev->flags & IFF_ALLMULTI)
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+ local_rcv = true;
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}
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}
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