tcp: add a drop_reason pointer to tcp_check_req()

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We want to add new drop reasons for packets dropped in 3WHS in the
following patches.

tcp_rcv_state_process() has to set reason to TCP_FASTOPEN,
because tcp_check_req() will conditionally overwrite the drop_reason.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250301201424.2046477-2-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Eric Dumazet 2025-03-01 20:14:19 +00:00 • committed by Jakub Kicinski

parent 3424291dd2

commit e34100c2ec

5 changed files with 9 additions and 7 deletions

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2

include/net/tcp.h

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5

net/ipv4/tcp_input.c

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3

net/ipv4/tcp_ipv4.c

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3

net/ipv4/tcp_minisocks.c

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3

net/ipv6/tcp_ipv6.c

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