Files
linux/include/net
Eric Dumazet 202ab59941 net: dropreason: add MACVLAN_BROADCAST_BACKLOG and IPVLAN_MULTICAST_BACKLOG
ipvlan and macvlan use queues to process broadcast/multicast packets
from a work queue.

Under attack these queues can drop packets.

Add MACVLAN_BROADCAST_BACKLOG drop_reason for macvlan broadcast queue.

Add IPVLAN_MULTICAST_BACKLOG drop_reason for ipvlan multicast queue.

Use different reasons as some deployments use both ipvlan and macvlan.

Also change ipvlan_rcv_frame() to use SKB_DROP_REASON_DEV_READY
when the device is not UP.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20260407150710.1640747-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-04-08 19:19:18 -07:00
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