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| author |   Jason Xing <kerneljasonxing@gmail.com> | 2025-03-12 16:35:22 +0100 |
|---|---|---|
| committer |   Martin KaFai Lau <martin.lau@kernel.org> | 2025-03-13 14:30:39 -0700 |
| commit | d22b8b04b88e39d0ed1177fb31fd3e880ac0ee2d (patch) | |
| tree | 85974beaf897075c50e0820bd63c87ced21de7d6 | |
| parent | tcp: bpf: Support bpf_getsockopt for TCP_BPF_RTO_MIN (diff) | |
| download | wireguard-linux-d22b8b04b88e39d0ed1177fb31fd3e880ac0ee2d.tar.xz wireguard-linux-d22b8b04b88e39d0ed1177fb31fd3e880ac0ee2d.zip | |
tcp: bpf: Support bpf_getsockopt for TCP_BPF_DELACK_MAX
Support bpf_getsockopt if application tries to know what the delayed ack
max time is.
Signed-off-by: Jason Xing <kerneljasonxing@gmail.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250312153523.9860-4-kerneljasonxing@gmail.com
| -rw-r--r-- | net/core/filter.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index 4d34d35af5c7..46ae8eb7a03c 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -5301,6 +5301,12 @@ static int bpf_sol_tcp_getsockopt(struct sock *sk, int optname, memcpy(optval, &rto_min_us, optlen); break; } + case TCP_BPF_DELACK_MAX: { + int delack_max_us = jiffies_to_usecs(inet_csk(sk)->icsk_delack_max); + + memcpy(optval, &delack_max_us, optlen); + break; + } default: return -EINVAL; } |