[PATCH v4 5/5] selftests: tls: run all tests for TLS 1.2 and TLS 1.3

[Jakub Kicinski]

TLS 1.2 and TLS 1.3 differ in the implementation.
Use fixture parameters to run all tests for both
versions, and remove the one-off TLS 1.2 test.

Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
 tools/testing/selftests/net/tls.c | 93 ++++++-------------------------
 1 file changed, 17 insertions(+), 76 deletions(-)

diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 0ea44d975b6c..c5282e62df75 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -101,6 +101,21 @@ FIXTURE(tls)
 	bool notls;
 };
 
+FIXTURE_VARIANT(tls)
+{
+	unsigned int tls_version;
+};
+
+FIXTURE_VARIANT_ADD(tls, 12)
+{
+	.tls_version = TLS_1_2_VERSION,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13)
+{
+	.tls_version = TLS_1_3_VERSION,
+};
+
 FIXTURE_SETUP(tls)
 {
 	struct tls12_crypto_info_aes_gcm_128 tls12;
@@ -112,7 +127,7 @@ FIXTURE_SETUP(tls)
 	len = sizeof(addr);
 
 	memset(&tls12, 0, sizeof(tls12));
-	tls12.info.version = TLS_1_3_VERSION;
+	tls12.info.version = variant->tls_version;
 	tls12.info.cipher_type = TLS_CIPHER_AES_GCM_128;
 
 	addr.sin_family = AF_INET;
@@ -733,7 +748,7 @@ TEST_F(tls, bidir)
 		struct tls12_crypto_info_aes_gcm_128 tls12;
 
 		memset(&tls12, 0, sizeof(tls12));
-		tls12.info.version = TLS_1_3_VERSION;
+		tls12.info.version = variant->tls_version;
 		tls12.info.cipher_type = TLS_CIPHER_AES_GCM_128;
 
 		ret = setsockopt(self->fd, SOL_TLS, TLS_RX, &tls12,
@@ -1258,78 +1273,4 @@ TEST(keysizes) {
 	close(cfd);
 }
 
-TEST(tls12) {
-	int fd, cfd;
-	bool notls;
-
-	struct tls12_crypto_info_aes_gcm_128 tls12;
-	struct sockaddr_in addr;
-	socklen_t len;
-	int sfd, ret;
-
-	notls = false;
-	len = sizeof(addr);
-
-	memset(&tls12, 0, sizeof(tls12));
-	tls12.info.version = TLS_1_2_VERSION;
-	tls12.info.cipher_type = TLS_CIPHER_AES_GCM_128;
-
-	addr.sin_family = AF_INET;
-	addr.sin_addr.s_addr = htonl(INADDR_ANY);
-	addr.sin_port = 0;
-
-	fd = socket(AF_INET, SOCK_STREAM, 0);
-	sfd = socket(AF_INET, SOCK_STREAM, 0);
-
-	ret = bind(sfd, &addr, sizeof(addr));
-	ASSERT_EQ(ret, 0);
-	ret = listen(sfd, 10);
-	ASSERT_EQ(ret, 0);
-
-	ret = getsockname(sfd, &addr, &len);
-	ASSERT_EQ(ret, 0);
-
-	ret = connect(fd, &addr, sizeof(addr));
-	ASSERT_EQ(ret, 0);
-
-	ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
-	if (ret != 0) {
-		notls = true;
-		printf("Failure setting TCP_ULP, testing without tls\n");
-	}
-
-	if (!notls) {
-		ret = setsockopt(fd, SOL_TLS, TLS_TX, &tls12,
-				 sizeof(tls12));
-		ASSERT_EQ(ret, 0);
-	}
-
-	cfd = accept(sfd, &addr, &len);
-	ASSERT_GE(cfd, 0);
-
-	if (!notls) {
-		ret = setsockopt(cfd, IPPROTO_TCP, TCP_ULP, "tls",
-				 sizeof("tls"));
-		ASSERT_EQ(ret, 0);
-
-		ret = setsockopt(cfd, SOL_TLS, TLS_RX, &tls12,
-				 sizeof(tls12));
-		ASSERT_EQ(ret, 0);
-	}
-
-	close(sfd);
-
-	char const *test_str = "test_read";
-	int send_len = 10;
-	char buf[10];
-
-	send_len = strlen(test_str) + 1;
-	EXPECT_EQ(send(fd, test_str, send_len, 0), send_len);
-	EXPECT_NE(recv(cfd, buf, send_len, 0), -1);
-	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
-
-	close(fd);
-	close(cfd);
-}
-
 TEST_HARNESS_MAIN
-- 
2.24.1