bpf: Allow a TCP CC to write sk_pacing_rate and sk_pacing_status

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A CC that implements tcp_congestion_ops.cong_control() should be able to
control sk_pacing_rate and set sk_pacing_status, since
tcp_update_pacing_rate() is never called in this case. A built-in CC or
one from a kernel module is already able to write to both struct sock
members. For a BPF program, write access has not been allowed, yet.

Signed-off-by: Jörn-Thorben Hinz <jthinz@mailbox.tu-berlin.de>
Reviewed-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220622191227.898118-2-jthinz@mailbox.tu-berlin.de
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Jörn-Thorben Hinz 2022-06-22 21:12:23 +02:00 • committed by Alexei Starovoitov

parent 9676feccac

commit 41c95dd6a6

1 changed files with 6 additions and 0 deletions

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net/ipv4/bpf_tcp_ca.c

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