tools/testing/selftests/bpf/prog_tests/map_init.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-only
 /* Copyright (c) 2020 Tessares SA <http://www.tessares.net> */

 #include <test_progs.h>
 #include "test_map_init.skel.h"

 #define TEST_VALUE 0x1234
 #define FILL_VALUE 0xdeadbeef

 static int nr_cpus;
 static int duration;

 typedef unsigned long long map_key_t;
 typedef unsigned long long map_value_t;
 typedef struct {
 	map_value_t v; /* padding */
 } __bpf_percpu_val_align pcpu_map_value_t;


 static int map_populate(int map_fd, int num)
 {
 	pcpu_map_value_t value[nr_cpus];
 	int i, err;
 	map_key_t key;

 	for (i = 0; i < nr_cpus; i++)
 		bpf_percpu(value, i) = FILL_VALUE;

 	for (key = 1; key <= num; key++) {
 		err = bpf_map_update_elem(map_fd, &key, value, BPF_NOEXIST);
 		if (!ASSERT_OK(err, "bpf_map_update_elem"))
 			return -1;
 	}

 	return 0;
 }

 static struct test_map_init *setup(enum bpf_map_type map_type, int map_sz,
 			    int *map_fd, int populate)
 {
 	struct test_map_init *skel;
 	int err;

 	skel = test_map_init__open();
 	if (!ASSERT_OK_PTR(skel, "skel_open"))
 		return NULL;

 	err = bpf_map__set_type(skel->maps.hashmap1, map_type);
 	if (!ASSERT_OK(err, "bpf_map__set_type"))
 		goto error;

 	err = bpf_map__set_max_entries(skel->maps.hashmap1, map_sz);
 	if (!ASSERT_OK(err, "bpf_map__set_max_entries"))
 		goto error;

 	err = test_map_init__load(skel);
 	if (!ASSERT_OK(err, "skel_load"))
 		goto error;

 	*map_fd = bpf_map__fd(skel->maps.hashmap1);
 	if (CHECK(*map_fd < 0, "bpf_map__fd", "failed\n"))
 		goto error;

 	err = map_populate(*map_fd, populate);
 	if (!ASSERT_OK(err, "map_populate"))
 		goto error_map;

 	return skel;

 error_map:
 	close(*map_fd);
 error:
 	test_map_init__destroy(skel);
 	return NULL;
 }

 /* executes bpf program that updates map with key, value */
 static int prog_run_insert_elem(struct test_map_init *skel, map_key_t key,
 				map_value_t value)
 {
 	struct test_map_init__bss *bss;

 	bss = skel->bss;

 	bss->inKey = key;
 	bss->inValue = value;
 	bss->inPid = getpid();

 	if (!ASSERT_OK(test_map_init__attach(skel), "skel_attach"))
 		return -1;

 	/* Let tracepoint trigger */
 	syscall(__NR_getpgid);

 	test_map_init__detach(skel);

 	return 0;
 }

 static int check_values_one_cpu(pcpu_map_value_t *value, map_value_t expected)
 {
 	int i, nzCnt = 0;
 	map_value_t val;

 	for (i = 0; i < nr_cpus; i++) {
 		val = bpf_percpu(value, i);
 		if (val) {
 			if (CHECK(val != expected, "map value",
 				  "unexpected for cpu %d: 0x%llx\n", i, val))
 				return -1;
 			nzCnt++;
 		}
 	}

 	if (CHECK(nzCnt != 1, "map value", "set for %d CPUs instead of 1!\n",
 		  nzCnt))
 		return -1;

 	return 0;
 }

 /* Add key=1 elem with values set for all CPUs
  * Delete elem key=1
  * Run bpf prog that inserts new key=1 elem with value=0x1234
  *   (bpf prog can only set value for current CPU)
  * Lookup Key=1 and check value is as expected for all CPUs:
  *   value set by bpf prog for one CPU, 0 for all others
  */
 static void test_pcpu_map_init(void)
 {
 	pcpu_map_value_t value[nr_cpus];
 	struct test_map_init *skel;
 	int map_fd, err;
 	map_key_t key;

 	/* max 1 elem in map so insertion is forced to reuse freed entry */
 	skel = setup(BPF_MAP_TYPE_PERCPU_HASH, 1, &map_fd, 1);
 	if (!ASSERT_OK_PTR(skel, "prog_setup"))
 		return;

 	/* delete element so the entry can be re-used*/
 	key = 1;
 	err = bpf_map_delete_elem(map_fd, &key);
 	if (!ASSERT_OK(err, "bpf_map_delete_elem"))
 		goto cleanup;

 	/* run bpf prog that inserts new elem, re-using the slot just freed */
 	err = prog_run_insert_elem(skel, key, TEST_VALUE);
 	if (!ASSERT_OK(err, "prog_run_insert_elem"))
 		goto cleanup;

 	/* check that key=1 was re-created by bpf prog */
 	err = bpf_map_lookup_elem(map_fd, &key, value);
 	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
 		goto cleanup;

 	/* and has expected values */
 	check_values_one_cpu(value, TEST_VALUE);

 cleanup:
 	test_map_init__destroy(skel);
 }

 /* Add key=1 and key=2 elems with values set for all CPUs
  * Run bpf prog that inserts new key=3 elem
  *   (only for current cpu; other cpus should have initial value = 0)
  * Lookup Key=1 and check value is as expected for all CPUs
  */
 static void test_pcpu_lru_map_init(void)
 {
 	pcpu_map_value_t value[nr_cpus];
 	struct test_map_init *skel;
 	int map_fd, err;
 	map_key_t key;

 	/* Set up LRU map with 2 elements, values filled for all CPUs.
 	 * With these 2 elements, the LRU map is full
 	 */
 	skel = setup(BPF_MAP_TYPE_LRU_PERCPU_HASH, 2, &map_fd, 2);
 	if (!ASSERT_OK_PTR(skel, "prog_setup"))
 		return;

 	/* run bpf prog that inserts new key=3 element, re-using LRU slot */
 	key = 3;
 	err = prog_run_insert_elem(skel, key, TEST_VALUE);
 	if (!ASSERT_OK(err, "prog_run_insert_elem"))
 		goto cleanup;

 	/* check that key=3 replaced one of earlier elements */
 	err = bpf_map_lookup_elem(map_fd, &key, value);
 	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
 		goto cleanup;

 	/* and has expected values */
 	check_values_one_cpu(value, TEST_VALUE);

 cleanup:
 	test_map_init__destroy(skel);
 }

 void test_map_init(void)
 {
 	nr_cpus = bpf_num_possible_cpus();
 	if (nr_cpus <= 1) {
 		printf("%s:SKIP: >1 cpu needed for this test\n", __func__);
 		test__skip();
 		return;
 	}

 	if (test__start_subtest("pcpu_map_init"))
 		test_pcpu_map_init();
 	if (test__start_subtest("pcpu_lru_map_init"))
 		test_pcpu_lru_map_init();
 }

 static void test_map_create(enum bpf_map_type map_type, const char *map_name,
 			    struct bpf_map_create_opts *opts, const char *exp_msg)
 {
 	const int key_size = 4, value_size = 4, max_entries = 1;
 	char log_buf[128];
 	int fd;
 	LIBBPF_OPTS(bpf_log_opts, log_opts);

 	log_buf[0] = '\0';
 	log_opts.buf = log_buf;
 	log_opts.size = sizeof(log_buf);
 	log_opts.level = 1;
 	opts->log_opts = &log_opts;
 	fd = bpf_map_create(map_type, map_name, key_size, value_size, max_entries, opts);
 	if (!ASSERT_LT(fd, 0, "bpf_map_create")) {
 		close(fd);
 		return;
 	}

 	ASSERT_STREQ(log_buf, exp_msg, "log_buf");
 	ASSERT_EQ(log_opts.true_size, strlen(exp_msg) + 1, "true_size");
 }

 static void test_map_create_array(struct bpf_map_create_opts *opts, const char *exp_msg)
 {
 	test_map_create(BPF_MAP_TYPE_ARRAY, "test_map_create", opts, exp_msg);
 }

 static void test_invalid_vmlinux_value_type_id_struct_ops(void)
 {
 	const char *msg = "btf_vmlinux_value_type_id can only be used with struct_ops maps.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .btf_vmlinux_value_type_id = 1,
 	);

 	test_map_create_array(&opts, msg);
 }

 static void test_invalid_vmlinux_value_type_id_kv_type_id(void)
 {
 	const char *msg = "btf_vmlinux_value_type_id is mutually exclusive with btf_key_type_id and btf_value_type_id.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .btf_vmlinux_value_type_id = 1,
 		    .btf_key_type_id = 1,
 	);

 	test_map_create(BPF_MAP_TYPE_STRUCT_OPS, "test_map_create", &opts, msg);
 }

 static void test_invalid_value_type_id(void)
 {
 	const char *msg = "Invalid btf_value_type_id.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .btf_key_type_id = 1,
 	);

 	test_map_create_array(&opts, msg);
 }

 static void test_invalid_map_extra(void)
 {
 	const char *msg = "Invalid map_extra.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .map_extra = 1,
 	);

 	test_map_create_array(&opts, msg);
 }

 static void test_invalid_numa_node(void)
 {
 	const char *msg = "Invalid numa_node.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .map_flags = BPF_F_NUMA_NODE,
 		    .numa_node = 0xFF,
 	);

 	test_map_create_array(&opts, msg);
 }

 static void test_invalid_map_type(void)
 {
 	const char *msg = "Invalid map_type.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts);

 	test_map_create(__MAX_BPF_MAP_TYPE, "test_map_create", &opts, msg);
 }

 static void test_invalid_token_fd(void)
 {
 	const char *msg = "Invalid map_token_fd.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .map_flags = BPF_F_TOKEN_FD,
 		    .token_fd = -1,
 	);

 	test_map_create_array(&opts, msg);
 }

 static void test_invalid_map_name(void)
 {
 	const char *msg = "Invalid map_name.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts);

 	test_map_create(BPF_MAP_TYPE_ARRAY, "test-!@#", &opts, msg);
 }

 static void test_invalid_btf_fd(void)
 {
 	const char *msg = "Invalid btf_fd.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .btf_fd = -1,
 		    .btf_key_type_id = 1,
 		    .btf_value_type_id = 1,
 	);

 	test_map_create_array(&opts, msg);
 }

 static void test_excl_prog_hash_size_1(void)
 {
 	const char *msg = "Invalid excl_prog_hash_size.\n";
 	const char *hash = "DEADCODE";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .excl_prog_hash = hash,
 	);

 	test_map_create_array(&opts, msg);
 }

 static void test_excl_prog_hash_size_2(void)
 {
 	const char *msg = "Invalid excl_prog_hash_size.\n";
 	LIBBPF_OPTS(bpf_map_create_opts, opts,
 		    .excl_prog_hash_size = 1,
 	);

 	test_map_create_array(&opts, msg);
 }

 static void test_common_attr_padding(void)
 {
 	struct bpf_common_attr_fake {
 		__u8 attrs[offsetofend(struct bpf_common_attr, log_true_size)];
 		__u32 pad;
 	} attr_common = {
 		.pad = 1,
 	};
 	union bpf_attr attr = {
 		.map_type    = BPF_MAP_TYPE_ARRAY,
 		.key_size    = 4,
 		.value_size  = 4,
 		.max_entries = 1,
 	};
 	int fd;

 	fd = syscall(__NR_bpf, BPF_MAP_CREATE | BPF_COMMON_ATTRS, &attr, sizeof(attr), &attr_common,
 		     sizeof(attr_common));
 	if (!ASSERT_LT(fd, 0, "syscall"))
 		close(fd);
 	else
 		ASSERT_EQ(errno, E2BIG, "errno");
 }

 void test_map_create_failure(void)
 {
 	if (test__start_subtest("invalid_vmlinux_value_type_id_struct_ops"))
 		test_invalid_vmlinux_value_type_id_struct_ops();
 	if (test__start_subtest("invalid_vmlinux_value_type_id_kv_type_id"))
 		test_invalid_vmlinux_value_type_id_kv_type_id();
 	if (test__start_subtest("invalid_value_type_id"))
 		test_invalid_value_type_id();
 	if (test__start_subtest("invalid_map_extra"))
 		test_invalid_map_extra();
 	if (test__start_subtest("invalid_numa_node"))
 		test_invalid_numa_node();
 	if (test__start_subtest("invalid_map_type"))
 		test_invalid_map_type();
 	if (test__start_subtest("invalid_token_fd"))
 		test_invalid_token_fd();
 	if (test__start_subtest("invalid_map_name"))
 		test_invalid_map_name();
 	if (test__start_subtest("invalid_btf_fd"))
 		test_invalid_btf_fd();
 	if (test__start_subtest("invalid_excl_prog_hash_size_1"))
 		test_excl_prog_hash_size_1();
 	if (test__start_subtest("invalid_excl_prog_hash_size_2"))
 		test_excl_prog_hash_size_2();
 	if (test__start_subtest("common_attr_padding"))
 		test_common_attr_padding();
 }
	// SPDX-License-Identifier: GPL-2.0-only
	/* Copyright (c) 2020 Tessares SA <http://www.tessares.net> */

	#include <test_progs.h>
	#include "test_map_init.skel.h"

	#define TEST_VALUE 0x1234
	#define FILL_VALUE 0xdeadbeef

	static int nr_cpus;
	static int duration;

	typedef unsigned long long map_key_t;
	typedef unsigned long long map_value_t;
	typedef struct {
	map_value_t v; /* padding */
	} __bpf_percpu_val_align pcpu_map_value_t;


	static int map_populate(int map_fd, int num)
	{
	pcpu_map_value_t value[nr_cpus];
	int i, err;
	map_key_t key;

	for (i = 0; i < nr_cpus; i++)
	bpf_percpu(value, i) = FILL_VALUE;

	for (key = 1; key <= num; key++) {
	err = bpf_map_update_elem(map_fd, &key, value, BPF_NOEXIST);
	if (!ASSERT_OK(err, "bpf_map_update_elem"))
	return -1;
	}

	return 0;
	}

	static struct test_map_init *setup(enum bpf_map_type map_type, int map_sz,
	int *map_fd, int populate)
	{
	struct test_map_init *skel;
	int err;

	skel = test_map_init__open();
	if (!ASSERT_OK_PTR(skel, "skel_open"))
	return NULL;

	err = bpf_map__set_type(skel->maps.hashmap1, map_type);
	if (!ASSERT_OK(err, "bpf_map__set_type"))
	goto error;

	err = bpf_map__set_max_entries(skel->maps.hashmap1, map_sz);
	if (!ASSERT_OK(err, "bpf_map__set_max_entries"))
	goto error;

	err = test_map_init__load(skel);
	if (!ASSERT_OK(err, "skel_load"))
	goto error;

	*map_fd = bpf_map__fd(skel->maps.hashmap1);
	if (CHECK(*map_fd < 0, "bpf_map__fd", "failed\n"))
	goto error;

	err = map_populate(*map_fd, populate);
	if (!ASSERT_OK(err, "map_populate"))
	goto error_map;

	return skel;

	error_map:
	close(*map_fd);
	error:
	test_map_init__destroy(skel);
	return NULL;
	}

	/* executes bpf program that updates map with key, value */
	static int prog_run_insert_elem(struct test_map_init *skel, map_key_t key,
	map_value_t value)
	{
	struct test_map_init__bss *bss;

	bss = skel->bss;

	bss->inKey = key;
	bss->inValue = value;
	bss->inPid = getpid();

	if (!ASSERT_OK(test_map_init__attach(skel), "skel_attach"))
	return -1;

	/* Let tracepoint trigger */
	syscall(__NR_getpgid);

	test_map_init__detach(skel);

	return 0;
	}

	static int check_values_one_cpu(pcpu_map_value_t *value, map_value_t expected)
	{
	int i, nzCnt = 0;
	map_value_t val;

	for (i = 0; i < nr_cpus; i++) {
	val = bpf_percpu(value, i);
	if (val) {
	if (CHECK(val != expected, "map value",
	"unexpected for cpu %d: 0x%llx\n", i, val))
	return -1;
	nzCnt++;
	}
	}

	if (CHECK(nzCnt != 1, "map value", "set for %d CPUs instead of 1!\n",
	nzCnt))
	return -1;

	return 0;
	}

	/* Add key=1 elem with values set for all CPUs
	* Delete elem key=1
	* Run bpf prog that inserts new key=1 elem with value=0x1234
	* (bpf prog can only set value for current CPU)
	* Lookup Key=1 and check value is as expected for all CPUs:
	* value set by bpf prog for one CPU, 0 for all others
	*/
	static void test_pcpu_map_init(void)
	{
	pcpu_map_value_t value[nr_cpus];
	struct test_map_init *skel;
	int map_fd, err;
	map_key_t key;

	/* max 1 elem in map so insertion is forced to reuse freed entry */
	skel = setup(BPF_MAP_TYPE_PERCPU_HASH, 1, &map_fd, 1);
	if (!ASSERT_OK_PTR(skel, "prog_setup"))
	return;

	/* delete element so the entry can be re-used*/
	key = 1;
	err = bpf_map_delete_elem(map_fd, &key);
	if (!ASSERT_OK(err, "bpf_map_delete_elem"))
	goto cleanup;

	/* run bpf prog that inserts new elem, re-using the slot just freed */
	err = prog_run_insert_elem(skel, key, TEST_VALUE);
	if (!ASSERT_OK(err, "prog_run_insert_elem"))
	goto cleanup;

	/* check that key=1 was re-created by bpf prog */
	err = bpf_map_lookup_elem(map_fd, &key, value);
	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
	goto cleanup;

	/* and has expected values */
	check_values_one_cpu(value, TEST_VALUE);

	cleanup:
	test_map_init__destroy(skel);
	}

	/* Add key=1 and key=2 elems with values set for all CPUs
	* Run bpf prog that inserts new key=3 elem
	* (only for current cpu; other cpus should have initial value = 0)
	* Lookup Key=1 and check value is as expected for all CPUs
	*/
	static void test_pcpu_lru_map_init(void)
	{
	pcpu_map_value_t value[nr_cpus];
	struct test_map_init *skel;
	int map_fd, err;
	map_key_t key;

	/* Set up LRU map with 2 elements, values filled for all CPUs.
	* With these 2 elements, the LRU map is full
	*/
	skel = setup(BPF_MAP_TYPE_LRU_PERCPU_HASH, 2, &map_fd, 2);
	if (!ASSERT_OK_PTR(skel, "prog_setup"))
	return;

	/* run bpf prog that inserts new key=3 element, re-using LRU slot */
	key = 3;
	err = prog_run_insert_elem(skel, key, TEST_VALUE);
	if (!ASSERT_OK(err, "prog_run_insert_elem"))
	goto cleanup;

	/* check that key=3 replaced one of earlier elements */
	err = bpf_map_lookup_elem(map_fd, &key, value);
	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
	goto cleanup;

	/* and has expected values */
	check_values_one_cpu(value, TEST_VALUE);

	cleanup:
	test_map_init__destroy(skel);
	}

	void test_map_init(void)
	{
	nr_cpus = bpf_num_possible_cpus();
	if (nr_cpus <= 1) {
	printf("%s:SKIP: >1 cpu needed for this test\n", __func__);
	test__skip();
	return;
	}

	if (test__start_subtest("pcpu_map_init"))
	test_pcpu_map_init();
	if (test__start_subtest("pcpu_lru_map_init"))
	test_pcpu_lru_map_init();
	}

	static void test_map_create(enum bpf_map_type map_type, const char *map_name,
	struct bpf_map_create_opts opts, const char exp_msg)
	{
	const int key_size = 4, value_size = 4, max_entries = 1;
	char log_buf[128];
	int fd;
	LIBBPF_OPTS(bpf_log_opts, log_opts);

	log_buf[0] = '\0';
	log_opts.buf = log_buf;
	log_opts.size = sizeof(log_buf);
	log_opts.level = 1;
	opts->log_opts = &log_opts;
	fd = bpf_map_create(map_type, map_name, key_size, value_size, max_entries, opts);
	if (!ASSERT_LT(fd, 0, "bpf_map_create")) {
	close(fd);
	return;
	}

	ASSERT_STREQ(log_buf, exp_msg, "log_buf");
	ASSERT_EQ(log_opts.true_size, strlen(exp_msg) + 1, "true_size");
	}

	static void test_map_create_array(struct bpf_map_create_opts opts, const char exp_msg)
	{
	test_map_create(BPF_MAP_TYPE_ARRAY, "test_map_create", opts, exp_msg);
	}

	static void test_invalid_vmlinux_value_type_id_struct_ops(void)
	{
	const char *msg = "btf_vmlinux_value_type_id can only be used with struct_ops maps.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.btf_vmlinux_value_type_id = 1,
	);

	test_map_create_array(&opts, msg);
	}

	static void test_invalid_vmlinux_value_type_id_kv_type_id(void)
	{
	const char *msg = "btf_vmlinux_value_type_id is mutually exclusive with btf_key_type_id and btf_value_type_id.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.btf_vmlinux_value_type_id = 1,
	.btf_key_type_id = 1,
	);

	test_map_create(BPF_MAP_TYPE_STRUCT_OPS, "test_map_create", &opts, msg);
	}

	static void test_invalid_value_type_id(void)
	{
	const char *msg = "Invalid btf_value_type_id.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.btf_key_type_id = 1,
	);

	test_map_create_array(&opts, msg);
	}

	static void test_invalid_map_extra(void)
	{
	const char *msg = "Invalid map_extra.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.map_extra = 1,
	);

	test_map_create_array(&opts, msg);
	}

	static void test_invalid_numa_node(void)
	{
	const char *msg = "Invalid numa_node.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.map_flags = BPF_F_NUMA_NODE,
	.numa_node = 0xFF,
	);

	test_map_create_array(&opts, msg);
	}

	static void test_invalid_map_type(void)
	{
	const char *msg = "Invalid map_type.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts);

	test_map_create(__MAX_BPF_MAP_TYPE, "test_map_create", &opts, msg);
	}

	static void test_invalid_token_fd(void)
	{
	const char *msg = "Invalid map_token_fd.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.map_flags = BPF_F_TOKEN_FD,
	.token_fd = -1,
	);

	test_map_create_array(&opts, msg);
	}

	static void test_invalid_map_name(void)
	{
	const char *msg = "Invalid map_name.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts);

	test_map_create(BPF_MAP_TYPE_ARRAY, "test-!@#", &opts, msg);
	}

	static void test_invalid_btf_fd(void)
	{
	const char *msg = "Invalid btf_fd.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.btf_fd = -1,
	.btf_key_type_id = 1,
	.btf_value_type_id = 1,
	);

	test_map_create_array(&opts, msg);
	}

	static void test_excl_prog_hash_size_1(void)
	{
	const char *msg = "Invalid excl_prog_hash_size.\n";
	const char *hash = "DEADCODE";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.excl_prog_hash = hash,
	);

	test_map_create_array(&opts, msg);
	}

	static void test_excl_prog_hash_size_2(void)
	{
	const char *msg = "Invalid excl_prog_hash_size.\n";
	LIBBPF_OPTS(bpf_map_create_opts, opts,
	.excl_prog_hash_size = 1,
	);

	test_map_create_array(&opts, msg);
	}

	static void test_common_attr_padding(void)
	{
	struct bpf_common_attr_fake {
	__u8 attrs[offsetofend(struct bpf_common_attr, log_true_size)];
	__u32 pad;
	} attr_common = {
	.pad = 1,
	};
	union bpf_attr attr = {
	.map_type = BPF_MAP_TYPE_ARRAY,
	.key_size = 4,
	.value_size = 4,
	.max_entries = 1,
	};
	int fd;

	fd = syscall(__NR_bpf, BPF_MAP_CREATE \| BPF_COMMON_ATTRS, &attr, sizeof(attr), &attr_common,
	sizeof(attr_common));
	if (!ASSERT_LT(fd, 0, "syscall"))
	close(fd);
	else
	ASSERT_EQ(errno, E2BIG, "errno");
	}

	void test_map_create_failure(void)
	{
	if (test__start_subtest("invalid_vmlinux_value_type_id_struct_ops"))
	test_invalid_vmlinux_value_type_id_struct_ops();
	if (test__start_subtest("invalid_vmlinux_value_type_id_kv_type_id"))
	test_invalid_vmlinux_value_type_id_kv_type_id();
	if (test__start_subtest("invalid_value_type_id"))
	test_invalid_value_type_id();
	if (test__start_subtest("invalid_map_extra"))
	test_invalid_map_extra();
	if (test__start_subtest("invalid_numa_node"))
	test_invalid_numa_node();
	if (test__start_subtest("invalid_map_type"))
	test_invalid_map_type();
	if (test__start_subtest("invalid_token_fd"))
	test_invalid_token_fd();
	if (test__start_subtest("invalid_map_name"))
	test_invalid_map_name();
	if (test__start_subtest("invalid_btf_fd"))
	test_invalid_btf_fd();
	if (test__start_subtest("invalid_excl_prog_hash_size_1"))
	test_excl_prog_hash_size_1();
	if (test__start_subtest("invalid_excl_prog_hash_size_2"))
	test_excl_prog_hash_size_2();
	if (test__start_subtest("common_attr_padding"))
	test_common_attr_padding();
	}