net: tls: Add tests for TLS 1.3

Change most tests to TLS 1.3, while adding tests for previous TLS 1.2
behavior.
Signed-off-by: Dave Watson <davejwatson@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/tls.c

@@ -42,7 +42,7 @@ FIXTURE_SETUP(tls)
 	len = sizeof(addr);
 
 	memset(&tls12, 0, sizeof(tls12));
-	tls12.info.version = TLS_1_2_VERSION;
+	tls12.info.version = TLS_1_3_VERSION;
 	tls12.info.cipher_type = TLS_CIPHER_AES_GCM_128;
 
 	addr.sin_family = AF_INET;
@@ -825,4 +825,78 @@ 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