selftests/bpf: Convert tcp_hdr_options test to ASSERT_* macros

Convert the selftest to use the preferred ASSERT_* macros instead of the
deprecated CHECK().
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/1664169131-32405-9-git-send-email-wangyufen@huawei.com

tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c

@@ -42,13 +42,10 @@ struct sk_fds {
 
 static int create_netns(void)
 {
-	if (CHECK(unshare(CLONE_NEWNET), "create netns",
-		  "unshare(CLONE_NEWNET): %s (%d)",
-		  strerror(errno), errno))
+	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
 		return -1;
 
-	if (CHECK(system("ip link set dev lo up"), "run ip cmd",
-		  "failed to bring lo link up\n"))
+	if (!ASSERT_OK(system("ip link set dev lo up"), "run ip cmd"))
 		return -1;
 
 	return 0;
@@ -80,16 +77,12 @@ static int sk_fds_shutdown(struct sk_fds *sk_fds)
 
 	shutdown(sk_fds->active_fd, SHUT_WR);
 	ret = read(sk_fds->passive_fd, &abyte, sizeof(abyte));
-	if (CHECK(ret != 0, "read-after-shutdown(passive_fd):",
-		  "ret:%d %s (%d)\n",
-		  ret, strerror(errno), errno))
+	if (!ASSERT_EQ(ret, 0, "read-after-shutdown(passive_fd):"))
 		return -1;
 
 	shutdown(sk_fds->passive_fd, SHUT_WR);
 	ret = read(sk_fds->active_fd, &abyte, sizeof(abyte));
-	if (CHECK(ret != 0, "read-after-shutdown(active_fd):",
-		  "ret:%d %s (%d)\n",
-		  ret, strerror(errno), errno))
+	if (!ASSERT_EQ(ret, 0, "read-after-shutdown(active_fd):"))
 		return -1;
 
 	return 0;
@@ -102,8 +95,7 @@ static int sk_fds_connect(struct sk_fds *sk_fds, bool fast_open)
 	socklen_t len;
 
 	sk_fds->srv_fd = start_server(AF_INET6, SOCK_STREAM, LO_ADDR6, 0, 0);
-	if (CHECK(sk_fds->srv_fd == -1, "start_server", "%s (%d)\n",
-		  strerror(errno), errno))
+	if (!ASSERT_NEQ(sk_fds->srv_fd, -1, "start_server"))
 		goto error;
 
 	if (fast_open)
@@ -112,28 +104,25 @@ static int sk_fds_connect(struct sk_fds *sk_fds, bool fast_open)
 	else
 		sk_fds->active_fd = connect_to_fd(sk_fds->srv_fd, 0);
 
-	if (CHECK_FAIL(sk_fds->active_fd == -1)) {
+	if (!ASSERT_NEQ(sk_fds->active_fd, -1, "")) {
 		close(sk_fds->srv_fd);
 		goto error;
 	}
 
 	len = sizeof(addr6);
-	if (CHECK(getsockname(sk_fds->srv_fd, (struct sockaddr *)&addr6,
-			      &len), "getsockname(srv_fd)", "%s (%d)\n",
-		  strerror(errno), errno))
+	if (!ASSERT_OK(getsockname(sk_fds->srv_fd, (struct sockaddr *)&addr6,
+				   &len), "getsockname(srv_fd)"))
 		goto error_close;
 	sk_fds->passive_lport = ntohs(addr6.sin6_port);
 
 	len = sizeof(addr6);
-	if (CHECK(getsockname(sk_fds->active_fd, (struct sockaddr *)&addr6,
-			      &len), "getsockname(active_fd)", "%s (%d)\n",
-		  strerror(errno), errno))
+	if (!ASSERT_OK(getsockname(sk_fds->active_fd, (struct sockaddr *)&addr6,
+				   &len), "getsockname(active_fd)"))
 		goto error_close;
 	sk_fds->active_lport = ntohs(addr6.sin6_port);
 
 	sk_fds->passive_fd = accept(sk_fds->srv_fd, NULL, 0);
-	if (CHECK(sk_fds->passive_fd == -1, "accept(srv_fd)", "%s (%d)\n",
-		  strerror(errno), errno))
+	if (!ASSERT_NEQ(sk_fds->passive_fd, -1, "accept(srv_fd)"))
 		goto error_close;
 
 	if (fast_open) {
@@ -141,8 +130,7 @@ static int sk_fds_connect(struct sk_fds *sk_fds, bool fast_open)
 		int ret;
 
 		ret = read(sk_fds->passive_fd, bytes_in, sizeof(bytes_in));
-		if (CHECK(ret != sizeof(fast), "read fastopen syn data",
-			  "expected=%lu actual=%d\n", sizeof(fast), ret)) {
+		if (!ASSERT_EQ(ret, sizeof(fast), "read fastopen syn data")) {
 			close(sk_fds->passive_fd);
 			goto error_close;
 		}
@@ -163,8 +151,7 @@ static int check_hdr_opt(const struct bpf_test_option *exp,
 			 const struct bpf_test_option *act,
 			 const char *hdr_desc)
 {
-	if (CHECK(memcmp(exp, act, sizeof(*exp)),
-		  "expected-vs-actual", "unexpected %s\n", hdr_desc)) {
+	if (!ASSERT_OK(memcmp(exp, act, sizeof(*exp)), hdr_desc)) {
 		print_option(exp, "expected: ");
 		print_option(act, "  actual: ");
 		return -1;
@@ -178,13 +165,11 @@ static int check_hdr_stg(const struct hdr_stg *exp, int fd,
 {
 	struct hdr_stg act;
 
-	if (CHECK(bpf_map_lookup_elem(hdr_stg_map_fd, &fd, &act),
-		  "map_lookup(hdr_stg_map_fd)", "%s %s (%d)\n",
-		  stg_desc, strerror(errno), errno))
+	if (!ASSERT_OK(bpf_map_lookup_elem(hdr_stg_map_fd, &fd, &act),
+		  "map_lookup(hdr_stg_map_fd)"))
 		return -1;
 
-	if (CHECK(memcmp(exp, &act, sizeof(*exp)),
-		  "expected-vs-actual", "unexpected %s\n", stg_desc)) {
+	if (!ASSERT_OK(memcmp(exp, &act, sizeof(*exp)), stg_desc)) {
 		print_hdr_stg(exp, "expected: ");
 		print_hdr_stg(&act, "  actual: ");
 		return -1;
@@ -228,9 +213,8 @@ static void check_hdr_and_close_fds(struct sk_fds *sk_fds)
 	if (sk_fds_shutdown(sk_fds))
 		goto check_linum;
 
-	if (CHECK(expected_inherit_cb_flags != skel->bss->inherit_cb_flags,
-		  "Unexpected inherit_cb_flags", "0x%x != 0x%x\n",
-		  skel->bss->inherit_cb_flags, expected_inherit_cb_flags))
+	if (!ASSERT_EQ(expected_inherit_cb_flags, skel->bss->inherit_cb_flags,
+		       "inherit_cb_flags"))
 		goto check_linum;
 
 	if (check_hdr_stg(&exp_passive_hdr_stg, sk_fds->passive_fd,
@@ -257,7 +241,7 @@ static void check_hdr_and_close_fds(struct sk_fds *sk_fds)
 		      "active_fin_in");
 
 check_linum:
-	CHECK_FAIL(check_error_linum(sk_fds));
+	ASSERT_FALSE(check_error_linum(sk_fds), "check_error_linum");
 	sk_fds_close(sk_fds);
 }
 
@@ -497,26 +481,20 @@ static void misc(void)
 		/* MSG_EOR to ensure skb will not be combined */
 		ret = send(sk_fds.active_fd, send_msg, sizeof(send_msg),
 			   MSG_EOR);
-		if (CHECK(ret != sizeof(send_msg), "send(msg)", "ret:%d\n",
-			  ret))
+		if (!ASSERT_EQ(ret, sizeof(send_msg), "send(msg)"))
 			goto check_linum;
 
 		ret = read(sk_fds.passive_fd, recv_msg, sizeof(recv_msg));
-		if (CHECK(ret != sizeof(send_msg), "read(msg)", "ret:%d\n",
-			  ret))
+		if (ASSERT_EQ(ret, sizeof(send_msg), "read(msg)"))
 			goto check_linum;
 	}
 
 	if (sk_fds_shutdown(&sk_fds))
 		goto check_linum;
 
-	CHECK(misc_skel->bss->nr_syn != 1, "unexpected nr_syn",
-	      "expected (1) != actual (%u)\n",
-		misc_skel->bss->nr_syn);
+	ASSERT_EQ(misc_skel->bss->nr_syn, 1, "unexpected nr_syn");
 
-	CHECK(misc_skel->bss->nr_data != nr_data, "unexpected nr_data",
-	      "expected (%u) != actual (%u)\n",
-	      nr_data, misc_skel->bss->nr_data);
+	ASSERT_EQ(misc_skel->bss->nr_data, nr_data, "unexpected nr_data");
 
 	/* The last ACK may have been delayed, so it is either 1 or 2. */
 	CHECK(misc_skel->bss->nr_pure_ack != 1 &&
@@ -525,12 +503,10 @@ static void misc(void)
 	      "expected (1 or 2) != actual (%u)\n",
 		misc_skel->bss->nr_pure_ack);
 
-	CHECK(misc_skel->bss->nr_fin != 1, "unexpected nr_fin",
-	      "expected (1) != actual (%u)\n",
-	      misc_skel->bss->nr_fin);
+	ASSERT_EQ(misc_skel->bss->nr_fin, 1, "unexpected nr_fin");
 
 check_linum:
-	CHECK_FAIL(check_error_linum(&sk_fds));
+	ASSERT_FALSE(check_error_linum(&sk_fds), "check_error_linum");
 	sk_fds_close(&sk_fds);
 	bpf_link__destroy(link);
 }
@@ -555,15 +531,15 @@ void test_tcp_hdr_options(void)
 	int i;
 
 	skel = test_tcp_hdr_options__open_and_load();
-	if (CHECK(!skel, "open and load skel", "failed"))
+	if (!ASSERT_OK_PTR(skel, "open and load skel"))
 		return;
 
 	misc_skel = test_misc_tcp_hdr_options__open_and_load();
-	if (CHECK(!misc_skel, "open and load misc test skel", "failed"))
+	if (!ASSERT_OK_PTR(misc_skel, "open and load misc test skel"))
 		goto skel_destroy;
 
 	cg_fd = test__join_cgroup(CG_NAME);
-	if (CHECK_FAIL(cg_fd < 0))
+	if (ASSERT_GE(cg_fd, 0, "join_cgroup"))
 		goto skel_destroy;
 
 	for (i = 0; i < ARRAY_SIZE(tests); i++) {