selftests: tls: add test for NoPad getsockopt

Make sure setsockopt / getsockopt behave as expected.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index e71ec5846be975fa9b0a912a6ec26676cf435e30..dc26aae0feb02be6a66705941b256b220330b833 100644 (file)
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -1674,6 +1674,57 @@ TEST(keysizes) {
        close(cfd);
 }
 
+TEST(no_pad) {
+       struct tls12_crypto_info_aes_gcm_256 tls12;
+       int ret, fd, cfd, val;
+       socklen_t len;
+       bool notls;
+
+       memset(&tls12, 0, sizeof(tls12));
+       tls12.info.version = TLS_1_3_VERSION;
+       tls12.info.cipher_type = TLS_CIPHER_AES_GCM_256;
+
+       ulp_sock_pair(_metadata, &fd, &cfd, &notls);
+
+       if (notls)
+               exit(KSFT_SKIP);
+
+       ret = setsockopt(fd, SOL_TLS, TLS_TX, &tls12, sizeof(tls12));
+       EXPECT_EQ(ret, 0);
+
+       ret = setsockopt(cfd, SOL_TLS, TLS_RX, &tls12, sizeof(tls12));
+       EXPECT_EQ(ret, 0);
+
+       val = 1;
+       ret = setsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+                        (void *)&val, sizeof(val));
+       EXPECT_EQ(ret, 0);
+
+       len = sizeof(val);
+       val = 2;
+       ret = getsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+                        (void *)&val, &len);
+       EXPECT_EQ(ret, 0);
+       EXPECT_EQ(val, 1);
+       EXPECT_EQ(len, 4);
+
+       val = 0;
+       ret = setsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+                        (void *)&val, sizeof(val));
+       EXPECT_EQ(ret, 0);
+
+       len = sizeof(val);
+       val = 2;
+       ret = getsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+                        (void *)&val, &len);
+       EXPECT_EQ(ret, 0);
+       EXPECT_EQ(val, 0);
+       EXPECT_EQ(len, 4);
+
+       close(fd);
+       close(cfd);
+}
+
 TEST(tls_v6ops) {
        struct tls_crypto_info_keys tls12;
        struct sockaddr_in6 addr, addr2;