Merge branch 'tcp-add-a-new-paws_ack-drop-reason'

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Eric Dumazet says:

====================
tcp: add a new PAWS_ACK drop reason

Current TCP_RFC7323_PAWS drop reason is too generic and can
cause confusion.

One common source for these drops are ACK packets coming too late.

A prior packet with payload already changed tp->rcv_nxt.

Add TCP_RFC7323_PAWS_ACK new drop reason, and do not
generate a DUPACK for such old ACK.
====================

Link: https://patch.msgid.link/20250113135558.3180360-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Jakub Kicinski 2025-01-14 13:28:15 -08:00

parent 652aac7ecd d16b344790

commit 63803c4a6d

4 changed files with 59 additions and 33 deletions

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6

include/net/dropreason-core.h

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1

include/uapi/linux/snmp.h

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1

net/ipv4/proc.c

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86

net/ipv4/tcp_input.c

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