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selftests/bpf: Relax TCPOPT_WINDOW validation in test_tcp_custom_syncookie.c.

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The custom syncookie test expects TCPOPT_WINDOW to be 7 based on the
kernel’s behaviour at the time, but the upcoming series [0] will bump
it to 10.

Let's relax the test to allow any valid TCPOPT_WINDOW value in the
range 1–14.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/netdev/20250513193919.1089692-1-edumazet@google.com/ #[0]
Link: https://patch.msgid.link/20250514214021.85187-1-kuniyu@amazon.com
This commit is contained in:
Kuniyuki Iwashima
2025-05-14 14:40:20 -07:00
committed by Martin KaFai Lau
parent d0445d7dd3
commit 4dd372de3f
1 changed files with 3 additions and 1 deletions
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4
tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
View File

@@ -294,7 +294,9 @@ static int tcp_validate_sysctl(struct tcp_syncookie *ctx)
(ctx->ipv6 && ctx->attrs.mss != MSS_LOCAL_IPV6))
goto err;
if (!ctx->attrs.wscale_ok || ctx->attrs.snd_wscale != 7)
if (!ctx->attrs.wscale_ok ||
!ctx->attrs.snd_wscale ||
ctx->attrs.snd_wscale >= BPF_SYNCOOKIE_WSCALE_MASK)
goto err;
if (!ctx->attrs.tstamp_ok)