selftests/bpf: Remove sockmap_ktls disconnect_after_delete test

"sockmap_ktls disconnect_after_delete" is effectively moot after
disconnect has been disabled for TLS [1][2]. Remove the test
completely.

[1] https://lore.kernel.org/bpf/20250416170246.2438524-1-ihor.solodrai@linux.dev/
[2] https://lore.kernel.org/netdev/20250404180334.3224206-1-kuba@kernel.org/

Signed-off-by: Ihor Solodrai <isolodrai@meta.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250502185221.1556192-1-isolodrai@meta.com

diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c b/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
index 71b18fb..3044f54 100644 (file)
--- a/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
@@ -61,71 +61,6 @@ static int create_ktls_pairs(int family, int sotype, int *c, int *p)
        return 0;
 }
 
-static int tcp_server(int family)
-{
-       int err, s;
-
-       s = socket(family, SOCK_STREAM, 0);
-       if (!ASSERT_GE(s, 0, "socket"))
-               return -1;
-
-       err = listen(s, SOMAXCONN);
-       if (!ASSERT_OK(err, "listen"))
-               return -1;
-
-       return s;
-}
-
-static int disconnect(int fd)
-{
-       struct sockaddr unspec = { AF_UNSPEC };
-
-       return connect(fd, &unspec, sizeof(unspec));
-}
-
-/* Disconnect (unhash) a kTLS socket after removing it from sockmap. */
-static void test_sockmap_ktls_disconnect_after_delete(int family, int map)
-{
-       struct sockaddr_storage addr = {0};
-       socklen_t len = sizeof(addr);
-       int err, cli, srv, zero = 0;
-
-       srv = tcp_server(family);
-       if (srv == -1)
-               return;
-
-       err = getsockname(srv, (struct sockaddr *)&addr, &len);
-       if (!ASSERT_OK(err, "getsockopt"))
-               goto close_srv;
-
-       cli = socket(family, SOCK_STREAM, 0);
-       if (!ASSERT_GE(cli, 0, "socket"))
-               goto close_srv;
-
-       err = connect(cli, (struct sockaddr *)&addr, len);
-       if (!ASSERT_OK(err, "connect"))
-               goto close_cli;
-
-       err = bpf_map_update_elem(map, &zero, &cli, 0);
-       if (!ASSERT_OK(err, "bpf_map_update_elem"))
-               goto close_cli;
-
-       err = setsockopt(cli, IPPROTO_TCP, TCP_ULP, "tls", strlen("tls"));
-       if (!ASSERT_OK(err, "setsockopt(TCP_ULP)"))
-               goto close_cli;
-
-       err = bpf_map_delete_elem(map, &zero);
-       if (!ASSERT_OK(err, "bpf_map_delete_elem"))
-               goto close_cli;
-
-       err = disconnect(cli);
-
-close_cli:
-       close(cli);
-close_srv:
-       close(srv);
-}
-
 static void test_sockmap_ktls_update_fails_when_sock_has_ulp(int family, int map)
 {
        struct sockaddr_storage addr = {};
@@ -313,8 +248,6 @@ static void run_tests(int family, enum bpf_map_type map_type)
        if (!ASSERT_GE(map, 0, "bpf_map_create"))
                return;
 
-       if (test__start_subtest(fmt_test_name("disconnect_after_delete", family, map_type)))
-               test_sockmap_ktls_disconnect_after_delete(family, map);
        if (test__start_subtest(fmt_test_name("update_fails_when_sock_has_ulp", family, map_type)))
                test_sockmap_ktls_update_fails_when_sock_has_ulp(family, map);