# \[PATCH net 3/5\] selftests: tls: Skip the zero\_len tests when TLS is unavailable - From: Jakub Kicinski \ - Date: 2026-11-09 17:58:40 - List: netdev - Page: https://ratatoskr.run/netdev/2026/11/17899153 - Thread: https://ratatoskr.run/netdev/2026/11/17899148/t.md ```text From: Chuck Lever FIXTURE_SETUP(zero_len) returns early when ulp_sock_pair() reports that the TCP_ULP setsockopt failed, so on a kernel built without CONFIG_TLS the TLS_RX setsockopt never runs. TEST_F(zero_len, test) then sends its raw records over a plain TCP socket, which returns the ciphertext verbatim. All eight variants FAIL on a machine that lacks TLS, and those failures mask any real regression in the same run. Skip the test when the fixture recorded notls, as the other fixtures in this file do. Fixes: a61a3e961baf ("selftests: tls: add tests for zero-length records") Signed-off-by: Chuck Lever Signed-off-by: Jakub Kicinski --- tools/testing/selftests/net/tls.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c index c4203401c4bf..ca47576220d3 100644 --- a/tools/testing/selftests/net/tls.c +++ b/tools/testing/selftests/net/tls.c @@ -2670,6 +2670,9 @@ TEST_F(zero_len, test) int rec_off; int i; + if (self->notls) + SKIP(return, "no TLS support"); + for (i = 0; i < 4 && variant->recs[i]; i++) EXPECT_EQ(send(self->fd, variant->recs[i]->cipher_data, variant->recs[i]->cipher_len, 0), -- 2.56.0 ```