Commit f78625fd authored by Dmitrii Dolgov's avatar Dmitrii Dolgov Committed by Alexei Starovoitov
Browse files

selftests/bpf: Use ASSERT_* instead of CHECK 



Replace usage of CHECK with a corresponding ASSERT_* macro for bpf_iter
tests. Only done if the final result is equivalent, no changes when
replacement means loosing some information, e.g. from formatting string.

Signed-off-by: default avatarDmitrii Dolgov <9erthalion6@gmail.com>
Link: https://lore.kernel.org/r/20220510155233.9815-4-9erthalion6@gmail.com


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 6b2d16b6

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

+88 −154
Original line number Diff line number Diff line
@@ -34,8 +34,7 @@ static void test_btf_id_or_null(void) 
	struct bpf_iter_test_kern3 *skel;



	skel = bpf_iter_test_kern3__open_and_load();

	if (CHECK(skel, "bpf_iter_test_kern3__open_and_load",

		  "skeleton open_and_load unexpectedly succeeded\n")) {

	if (!ASSERT_ERR_PTR(skel, "bpf_iter_test_kern3__open_and_load")) {

		bpf_iter_test_kern3__destroy(skel);

		return;

	}
@@ -52,7 +51,7 @@ static void do_dummy_read(struct bpf_program *prog) 
		return;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	/* not check contents, but ensure read() ends without error */
@@ -87,8 +86,7 @@ static void test_ipv6_route(void) 
	struct bpf_iter_ipv6_route *skel;



	skel = bpf_iter_ipv6_route__open_and_load();

	if (CHECK(!skel, "bpf_iter_ipv6_route__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_ipv6_route__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_ipv6_route);
@@ -101,8 +99,7 @@ static void test_netlink(void) 
	struct bpf_iter_netlink *skel;



	skel = bpf_iter_netlink__open_and_load();

	if (CHECK(!skel, "bpf_iter_netlink__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_netlink__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_netlink);
@@ -115,8 +112,7 @@ static void test_bpf_map(void) 
	struct bpf_iter_bpf_map *skel;



	skel = bpf_iter_bpf_map__open_and_load();

	if (CHECK(!skel, "bpf_iter_bpf_map__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_map__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_bpf_map);
@@ -129,8 +125,7 @@ static void test_task(void) 
	struct bpf_iter_task *skel;



	skel = bpf_iter_task__open_and_load();

	if (CHECK(!skel, "bpf_iter_task__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_task__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_task);
@@ -161,8 +156,7 @@ static void test_task_stack(void) 
	struct bpf_iter_task_stack *skel;



	skel = bpf_iter_task_stack__open_and_load();

	if (CHECK(!skel, "bpf_iter_task_stack__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_stack__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_task_stack);
@@ -183,24 +177,22 @@ static void test_task_file(void) 
	void *ret;



	skel = bpf_iter_task_file__open_and_load();

	if (CHECK(!skel, "bpf_iter_task_file__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_file__open_and_load"))

		return;



	skel->bss->tgid = getpid();



	if (CHECK(pthread_create(&thread_id, NULL, &do_nothing, NULL),

		  "pthread_create", "pthread_create failed\n"))

	if (!ASSERT_OK(pthread_create(&thread_id, NULL, &do_nothing, NULL),

		  "pthread_create"))

		goto done;



	do_dummy_read(skel->progs.dump_task_file);



	if (CHECK(pthread_join(thread_id, &ret) || ret != NULL,

		  "pthread_join", "pthread_join failed\n"))

	if (!ASSERT_FALSE(pthread_join(thread_id, &ret) || ret != NULL,

		  "pthread_join"))

		goto done;



	CHECK(skel->bss->count != 0, "check_count",

	      "invalid non pthread file visit count %d\n", skel->bss->count);

	ASSERT_EQ(skel->bss->count, 0, "check_count");



done:

	bpf_iter_task_file__destroy(skel);
@@ -224,7 +216,7 @@ static int do_btf_read(struct bpf_iter_task_btf *skel) 
		return ret;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	err = read_fd_into_buffer(iter_fd, buf, TASKBUFSZ);
@@ -238,9 +230,8 @@ static int do_btf_read(struct bpf_iter_task_btf *skel) 
	if (CHECK(err < 0, "read", "read failed: %s\n", strerror(errno)))

		goto free_link;



	CHECK(strstr(taskbuf, "(struct task_struct)") == NULL,

	      "check for btf representation of task_struct in iter data",

	      "struct task_struct not found");

	ASSERT_HAS_SUBSTR(taskbuf, "(struct task_struct)",

	      "check for btf representation of task_struct in iter data");

free_link:

	if (iter_fd > 0)

		close(iter_fd);
@@ -255,8 +246,7 @@ static void test_task_btf(void) 
	int ret;



	skel = bpf_iter_task_btf__open_and_load();

	if (CHECK(!skel, "bpf_iter_task_btf__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_btf__open_and_load"))

		return;



	bss = skel->bss;
@@ -265,12 +255,10 @@ static void test_task_btf(void) 
	if (ret)

		goto cleanup;



	if (CHECK(bss->tasks == 0, "check if iterated over tasks",

		  "no task iteration, did BPF program run?\n"))

	if (!ASSERT_NEQ(bss->tasks, 0, "no task iteration, did BPF program run?"))

		goto cleanup;



	CHECK(bss->seq_err != 0, "check for unexpected err",

	      "bpf_seq_printf_btf returned %ld", bss->seq_err);

	ASSERT_EQ(bss->seq_err, 0, "check for unexpected err");



cleanup:

	bpf_iter_task_btf__destroy(skel);
@@ -281,8 +269,7 @@ static void test_tcp4(void) 
	struct bpf_iter_tcp4 *skel;



	skel = bpf_iter_tcp4__open_and_load();

	if (CHECK(!skel, "bpf_iter_tcp4__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_tcp4__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_tcp4);
@@ -295,8 +282,7 @@ static void test_tcp6(void) 
	struct bpf_iter_tcp6 *skel;



	skel = bpf_iter_tcp6__open_and_load();

	if (CHECK(!skel, "bpf_iter_tcp6__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_tcp6__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_tcp6);
@@ -309,8 +295,7 @@ static void test_udp4(void) 
	struct bpf_iter_udp4 *skel;



	skel = bpf_iter_udp4__open_and_load();

	if (CHECK(!skel, "bpf_iter_udp4__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_udp4__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_udp4);
@@ -323,8 +308,7 @@ static void test_udp6(void) 
	struct bpf_iter_udp6 *skel;



	skel = bpf_iter_udp6__open_and_load();

	if (CHECK(!skel, "bpf_iter_udp6__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_udp6__open_and_load"))

		return;



	do_dummy_read(skel->progs.dump_udp6);
@@ -349,7 +333,7 @@ static void test_unix(void) 
static int do_read_with_fd(int iter_fd, const char *expected,

			   bool read_one_char)

{

	int err = -1, len, read_buf_len, start;

	int len, read_buf_len, start;

	char buf[16] = {};



	read_buf_len = read_one_char ? 1 : 16;
@@ -363,9 +347,7 @@ static int do_read_with_fd(int iter_fd, const char *expected, 
	if (CHECK(len < 0, "read", "read failed: %s\n", strerror(errno)))

		return -1;



	err = strcmp(buf, expected);

	if (CHECK(err, "read", "incorrect read result: buf %s, expected %s\n",

		  buf, expected))

	if (!ASSERT_STREQ(buf, expected, "read"))

		return -1;



	return 0;
@@ -378,19 +360,17 @@ static void test_anon_iter(bool read_one_char) 
	int iter_fd, err;



	skel = bpf_iter_test_kern1__open_and_load();

	if (CHECK(!skel, "bpf_iter_test_kern1__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_test_kern1__open_and_load"))

		return;



	err = bpf_iter_test_kern1__attach(skel);

	if (CHECK(err, "bpf_iter_test_kern1__attach",

		  "skeleton attach failed\n")) {

	if (!ASSERT_OK(err, "bpf_iter_test_kern1__attach")) {

		goto out;

	}



	link = skel->links.dump_task;

	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto out;



	do_read_with_fd(iter_fd, "abcd", read_one_char);
@@ -423,8 +403,7 @@ static void test_file_iter(void) 
	int err;



	skel1 = bpf_iter_test_kern1__open_and_load();

	if (CHECK(!skel1, "bpf_iter_test_kern1__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel1, "bpf_iter_test_kern1__open_and_load"))

		return;



	link = bpf_program__attach_iter(skel1->progs.dump_task, NULL);
@@ -447,12 +426,11 @@ static void test_file_iter(void) 
	 * should change.

	 */

	skel2 = bpf_iter_test_kern2__open_and_load();

	if (CHECK(!skel2, "bpf_iter_test_kern2__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel2, "bpf_iter_test_kern2__open_and_load"))

		goto unlink_path;



	err = bpf_link__update_program(link, skel2->progs.dump_task);

	if (CHECK(err, "update_prog", "update_prog failed\n"))

	if (!ASSERT_OK(err, "update_prog"))

		goto destroy_skel2;



	do_read(path, "ABCD");
@@ -478,8 +456,7 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) 
	char *buf;



	skel = bpf_iter_test_kern4__open();

	if (CHECK(!skel, "bpf_iter_test_kern4__open",

		  "skeleton open failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_test_kern4__open"))

		return;



	/* create two maps: bpf program will only do bpf_seq_write
@@ -515,8 +492,8 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) 
	}

	skel->rodata->ret1 = ret1;



	if (CHECK(bpf_iter_test_kern4__load(skel),

		  "bpf_iter_test_kern4__load", "skeleton load failed\n"))

	if (!ASSERT_OK(bpf_iter_test_kern4__load(skel),

		  "bpf_iter_test_kern4__load"))

		goto free_map2;



	/* setup filtering map_id in bpf program */
@@ -538,7 +515,7 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) 
		goto free_map2;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	buf = malloc(expected_read_len);
@@ -574,22 +551,16 @@ static void test_overflow(bool test_e2big_overflow, bool ret1) 
			goto free_buf;

	}



	if (CHECK(total_read_len != expected_read_len, "read",

		  "total len %u, expected len %u\n", total_read_len,

		  expected_read_len))

	if (!ASSERT_EQ(total_read_len, expected_read_len, "read"))

		goto free_buf;



	if (CHECK(skel->bss->map1_accessed != 1, "map1_accessed",

		  "expected 1 actual %d\n", skel->bss->map1_accessed))

	if (!ASSERT_EQ(skel->bss->map1_accessed, 1, "map1_accessed"))

		goto free_buf;



	if (CHECK(skel->bss->map2_accessed != 2, "map2_accessed",

		  "expected 2 actual %d\n", skel->bss->map2_accessed))

	if (!ASSERT_EQ(skel->bss->map2_accessed, 2, "map2_accessed"))

		goto free_buf;



	CHECK(skel->bss->map2_seqnum1 != skel->bss->map2_seqnum2,

	      "map2_seqnum", "two different seqnum %lld %lld\n",

	      skel->bss->map2_seqnum1, skel->bss->map2_seqnum2);

	ASSERT_EQ(skel->bss->map2_seqnum1, skel->bss->map2_seqnum2, "map2_seqnum");



free_buf:

	free(buf);
@@ -622,8 +593,7 @@ static void test_bpf_hash_map(void) 
	char buf[64];



	skel = bpf_iter_bpf_hash_map__open();

	if (CHECK(!skel, "bpf_iter_bpf_hash_map__open",

		  "skeleton open failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_hash_map__open"))

		return;



	skel->bss->in_test_mode = true;
@@ -658,7 +628,7 @@ static void test_bpf_hash_map(void) 
		expected_val += val;



		err = bpf_map_update_elem(map_fd, &key, &val, BPF_ANY);

		if (CHECK(err, "map_update", "map_update failed\n"))

		if (!ASSERT_OK(err, "map_update"))

			goto out;

	}
@@ -668,7 +638,7 @@ static void test_bpf_hash_map(void) 
		goto out;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	/* do some tests */
@@ -678,17 +648,11 @@ static void test_bpf_hash_map(void) 
		goto close_iter;



	/* test results */

	if (CHECK(skel->bss->key_sum_a != expected_key_a,

		  "key_sum_a", "got %u expected %u\n",

		  skel->bss->key_sum_a, expected_key_a))

	if (!ASSERT_EQ(skel->bss->key_sum_a, expected_key_a, "key_sum_a"))

		goto close_iter;

	if (CHECK(skel->bss->key_sum_b != expected_key_b,

		  "key_sum_b", "got %u expected %u\n",

		  skel->bss->key_sum_b, expected_key_b))

	if (!ASSERT_EQ(skel->bss->key_sum_b, expected_key_b, "key_sum_b"))

		goto close_iter;

	if (CHECK(skel->bss->val_sum != expected_val,

		  "val_sum", "got %llu expected %llu\n",

		  skel->bss->val_sum, expected_val))

	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))

		goto close_iter;



close_iter:
@@ -717,16 +681,14 @@ static void test_bpf_percpu_hash_map(void) 
	void *val;



	skel = bpf_iter_bpf_percpu_hash_map__open();

	if (CHECK(!skel, "bpf_iter_bpf_percpu_hash_map__open",

		  "skeleton open failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_hash_map__open"))

		return;



	skel->rodata->num_cpus = bpf_num_possible_cpus();

	val = malloc(8 * bpf_num_possible_cpus());



	err = bpf_iter_bpf_percpu_hash_map__load(skel);

	if (CHECK(!skel, "bpf_iter_bpf_percpu_hash_map__load",

		  "skeleton load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_hash_map__load"))

		goto out;



	/* update map values here */
@@ -744,7 +706,7 @@ static void test_bpf_percpu_hash_map(void) 
		}



		err = bpf_map_update_elem(map_fd, &key, val, BPF_ANY);

		if (CHECK(err, "map_update", "map_update failed\n"))

		if (!ASSERT_OK(err, "map_update"))

			goto out;

	}
@@ -757,7 +719,7 @@ static void test_bpf_percpu_hash_map(void) 
		goto out;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	/* do some tests */
@@ -767,17 +729,11 @@ static void test_bpf_percpu_hash_map(void) 
		goto close_iter;



	/* test results */

	if (CHECK(skel->bss->key_sum_a != expected_key_a,

		  "key_sum_a", "got %u expected %u\n",

		  skel->bss->key_sum_a, expected_key_a))

	if (!ASSERT_EQ(skel->bss->key_sum_a, expected_key_a, "key_sum_a"))

		goto close_iter;

	if (CHECK(skel->bss->key_sum_b != expected_key_b,

		  "key_sum_b", "got %u expected %u\n",

		  skel->bss->key_sum_b, expected_key_b))

	if (!ASSERT_EQ(skel->bss->key_sum_b, expected_key_b, "key_sum_b"))

		goto close_iter;

	if (CHECK(skel->bss->val_sum != expected_val,

		  "val_sum", "got %u expected %u\n",

		  skel->bss->val_sum, expected_val))

	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))

		goto close_iter;



close_iter:
@@ -802,8 +758,7 @@ static void test_bpf_array_map(void) 
	int len, start;



	skel = bpf_iter_bpf_array_map__open_and_load();

	if (CHECK(!skel, "bpf_iter_bpf_array_map__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_array_map__open_and_load"))

		return;



	map_fd = bpf_map__fd(skel->maps.arraymap1);
@@ -816,7 +771,7 @@ static void test_bpf_array_map(void) 
			first_val = val;



		err = bpf_map_update_elem(map_fd, &i, &val, BPF_ANY);

		if (CHECK(err, "map_update", "map_update failed\n"))

		if (!ASSERT_OK(err, "map_update"))

			goto out;

	}
@@ -829,7 +784,7 @@ static void test_bpf_array_map(void) 
		goto out;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	/* do some tests */
@@ -849,21 +804,16 @@ static void test_bpf_array_map(void) 
		  res_first_key, res_first_val, first_val))

		goto close_iter;



	if (CHECK(skel->bss->key_sum != expected_key,

		  "key_sum", "got %u expected %u\n",

		  skel->bss->key_sum, expected_key))

	if (!ASSERT_EQ(skel->bss->key_sum, expected_key, "key_sum"))

		goto close_iter;

	if (CHECK(skel->bss->val_sum != expected_val,

		  "val_sum", "got %llu expected %llu\n",

		  skel->bss->val_sum, expected_val))

	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))

		goto close_iter;



	for (i = 0; i < bpf_map__max_entries(skel->maps.arraymap1); i++) {

		err = bpf_map_lookup_elem(map_fd, &i, &val);

		if (CHECK(err, "map_lookup", "map_lookup failed\n"))

		if (!ASSERT_OK(err, "map_lookup"))

			goto out;

		if (CHECK(i != val, "invalid_val",

			  "got value %llu expected %u\n", val, i))

		if (!ASSERT_EQ(i, val, "invalid_val"))

			goto out;

	}
@@ -888,16 +838,14 @@ static void test_bpf_percpu_array_map(void) 
	int len;



	skel = bpf_iter_bpf_percpu_array_map__open();

	if (CHECK(!skel, "bpf_iter_bpf_percpu_array_map__open",

		  "skeleton open failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_array_map__open"))

		return;



	skel->rodata->num_cpus = bpf_num_possible_cpus();

	val = malloc(8 * bpf_num_possible_cpus());



	err = bpf_iter_bpf_percpu_array_map__load(skel);

	if (CHECK(!skel, "bpf_iter_bpf_percpu_array_map__load",

		  "skeleton load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_array_map__load"))

		goto out;



	/* update map values here */
@@ -911,7 +859,7 @@ static void test_bpf_percpu_array_map(void) 
		}



		err = bpf_map_update_elem(map_fd, &i, val, BPF_ANY);

		if (CHECK(err, "map_update", "map_update failed\n"))

		if (!ASSERT_OK(err, "map_update"))

			goto out;

	}
@@ -924,7 +872,7 @@ static void test_bpf_percpu_array_map(void) 
		goto out;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	/* do some tests */
@@ -934,13 +882,9 @@ static void test_bpf_percpu_array_map(void) 
		goto close_iter;



	/* test results */

	if (CHECK(skel->bss->key_sum != expected_key,

		  "key_sum", "got %u expected %u\n",

		  skel->bss->key_sum, expected_key))

	if (!ASSERT_EQ(skel->bss->key_sum, expected_key, "key_sum"))

		goto close_iter;

	if (CHECK(skel->bss->val_sum != expected_val,

		  "val_sum", "got %u expected %u\n",

		  skel->bss->val_sum, expected_val))

	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))

		goto close_iter;



close_iter:
@@ -965,17 +909,16 @@ static void test_bpf_sk_storage_delete(void) 
	char buf[64];



	skel = bpf_iter_bpf_sk_storage_helpers__open_and_load();

	if (CHECK(!skel, "bpf_iter_bpf_sk_storage_helpers__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_sk_storage_helpers__open_and_load"))

		return;



	map_fd = bpf_map__fd(skel->maps.sk_stg_map);



	sock_fd = socket(AF_INET6, SOCK_STREAM, 0);

	if (CHECK(sock_fd < 0, "socket", "errno: %d\n", errno))

	if (!ASSERT_GE(sock_fd, 0, "socket"))

		goto out;

	err = bpf_map_update_elem(map_fd, &sock_fd, &val, BPF_NOEXIST);

	if (CHECK(err, "map_update", "map_update failed\n"))

	if (!ASSERT_OK(err, "map_update"))

		goto out;



	memset(&linfo, 0, sizeof(linfo));
@@ -988,7 +931,7 @@ static void test_bpf_sk_storage_delete(void) 
		goto out;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	/* do some tests */
@@ -1026,22 +969,21 @@ static void test_bpf_sk_storage_get(void) 
	int sock_fd = -1;



	skel = bpf_iter_bpf_sk_storage_helpers__open_and_load();

	if (CHECK(!skel, "bpf_iter_bpf_sk_storage_helpers__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_sk_storage_helpers__open_and_load"))

		return;



	sock_fd = socket(AF_INET6, SOCK_STREAM, 0);

	if (CHECK(sock_fd < 0, "socket", "errno: %d\n", errno))

	if (!ASSERT_GE(sock_fd, 0, "socket"))

		goto out;



	err = listen(sock_fd, 1);

	if (CHECK(err != 0, "listen", "errno: %d\n", errno))

	if (!ASSERT_OK(err, "listen"))

		goto close_socket;



	map_fd = bpf_map__fd(skel->maps.sk_stg_map);



	err = bpf_map_update_elem(map_fd, &sock_fd, &val, BPF_NOEXIST);

	if (CHECK(err, "bpf_map_update_elem", "map_update_failed\n"))

	if (!ASSERT_OK(err, "bpf_map_update_elem"))

		goto close_socket;



	do_dummy_read(skel->progs.fill_socket_owner);
@@ -1077,15 +1019,14 @@ static void test_bpf_sk_storage_map(void) 
	char buf[64];



	skel = bpf_iter_bpf_sk_storage_map__open_and_load();

	if (CHECK(!skel, "bpf_iter_bpf_sk_storage_map__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_sk_storage_map__open_and_load"))

		return;



	map_fd = bpf_map__fd(skel->maps.sk_stg_map);

	num_sockets = ARRAY_SIZE(sock_fd);

	for (i = 0; i < num_sockets; i++) {

		sock_fd[i] = socket(AF_INET6, SOCK_STREAM, 0);

		if (CHECK(sock_fd[i] < 0, "socket", "errno: %d\n", errno))

		if (!ASSERT_GE(sock_fd[i], 0, "socket"))

			goto out;



		val = i + 1;
@@ -1093,7 +1034,7 @@ static void test_bpf_sk_storage_map(void) 


		err = bpf_map_update_elem(map_fd, &sock_fd[i], &val,

					  BPF_NOEXIST);

		if (CHECK(err, "map_update", "map_update failed\n"))

		if (!ASSERT_OK(err, "map_update"))

			goto out;

	}
@@ -1106,7 +1047,7 @@ static void test_bpf_sk_storage_map(void) 
		goto out;



	iter_fd = bpf_iter_create(bpf_link__fd(link));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto free_link;



	/* do some tests */
@@ -1116,14 +1057,10 @@ static void test_bpf_sk_storage_map(void) 
		goto close_iter;



	/* test results */

	if (CHECK(skel->bss->ipv6_sk_count != num_sockets,

		  "ipv6_sk_count", "got %u expected %u\n",

		  skel->bss->ipv6_sk_count, num_sockets))

	if (!ASSERT_EQ(skel->bss->ipv6_sk_count, num_sockets, "ipv6_sk_count"))

		goto close_iter;



	if (CHECK(skel->bss->val_sum != expected_val,

		  "val_sum", "got %u expected %u\n",

		  skel->bss->val_sum, expected_val))

	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))

		goto close_iter;



close_iter:
@@ -1146,8 +1083,7 @@ static void test_rdonly_buf_out_of_bound(void) 
	struct bpf_link *link;



	skel = bpf_iter_test_kern5__open_and_load();

	if (CHECK(!skel, "bpf_iter_test_kern5__open_and_load",

		  "skeleton open_and_load failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_test_kern5__open_and_load"))

		return;



	memset(&linfo, 0, sizeof(linfo));
@@ -1166,8 +1102,7 @@ static void test_buf_neg_offset(void) 
	struct bpf_iter_test_kern6 *skel;



	skel = bpf_iter_test_kern6__open_and_load();

	if (CHECK(skel, "bpf_iter_test_kern6__open_and_load",

		  "skeleton open_and_load unexpected success\n"))

	if (!ASSERT_ERR_PTR(skel, "bpf_iter_test_kern6__open_and_load"))

		bpf_iter_test_kern6__destroy(skel);

}
@@ -1199,13 +1134,13 @@ static void test_task_vma(void) 
	char maps_path[64];



	skel = bpf_iter_task_vma__open();

	if (CHECK(!skel, "bpf_iter_task_vma__open", "skeleton open failed\n"))

	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_vma__open"))

		return;



	skel->bss->pid = getpid();



	err = bpf_iter_task_vma__load(skel);

	if (CHECK(err, "bpf_iter_task_vma__load", "skeleton load failed\n"))

	if (!ASSERT_OK(err, "bpf_iter_task_vma__load"))

		goto out;



	skel->links.proc_maps = bpf_program__attach_iter(
@@ -1217,7 +1152,7 @@ static void test_task_vma(void) 
	}



	iter_fd = bpf_iter_create(bpf_link__fd(skel->links.proc_maps));

	if (CHECK(iter_fd < 0, "create_iter", "create_iter failed\n"))

	if (!ASSERT_GE(iter_fd, 0, "create_iter"))

		goto out;



	/* Read CMP_BUFFER_SIZE (1kB) from bpf_iter. Read in small chunks
@@ -1229,7 +1164,7 @@ static void test_task_vma(void) 
					  MIN(read_size, CMP_BUFFER_SIZE - len));

		if (!err)

			break;

		if (CHECK(err < 0, "read_iter_fd", "read_iter_fd failed\n"))

		if (!ASSERT_GE(err, 0, "read_iter_fd"))

			goto out;

		len += err;

	}
@@ -1237,18 +1172,17 @@ static void test_task_vma(void) 
	/* read CMP_BUFFER_SIZE (1kB) from /proc/pid/maps */

	snprintf(maps_path, 64, "/proc/%u/maps", skel->bss->pid);

	proc_maps_fd = open(maps_path, O_RDONLY);

	if (CHECK(proc_maps_fd < 0, "open_proc_maps", "open_proc_maps failed\n"))

	if (!ASSERT_GE(proc_maps_fd, 0, "open_proc_maps"))

		goto out;

	err = read_fd_into_buffer(proc_maps_fd, proc_maps_output, CMP_BUFFER_SIZE);

	if (CHECK(err < 0, "read_prog_maps_fd", "read_prog_maps_fd failed\n"))

	if (!ASSERT_GE(err, 0, "read_prog_maps_fd"))

		goto out;



	/* strip and compare the first line of the two files */

	str_strip_first_line(task_vma_output);

	str_strip_first_line(proc_maps_output);



	CHECK(strcmp(task_vma_output, proc_maps_output), "compare_output",

	      "found mismatch\n");

	ASSERT_STREQ(task_vma_output, proc_maps_output, "compare_output");

out:

	close(proc_maps_fd);

	close(iter_fd);