diff options
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/map_excl.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/map_excl.c b/tools/testing/selftests/bpf/prog_tests/map_excl.c index 3088668e2e45..3f4422b9ffa6 100644 --- a/tools/testing/selftests/bpf/prog_tests/map_excl.c +++ b/tools/testing/selftests/bpf/prog_tests/map_excl.c @@ -126,6 +126,41 @@ out: close(excl_fd); } +static void test_map_excl_create_validation(void) +{ + LIBBPF_OPTS(bpf_map_create_opts, o); + __u8 hash[SHA256_DIGEST_SIZE] = {}; + int fd; + + o.excl_prog_hash = hash; + o.excl_prog_hash_size = SHA256_DIGEST_SIZE / 2; + fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "excl", 4, 4, 1, &o); + if (fd >= 0) + close(fd); + ASSERT_EQ(fd, -EINVAL, "reject short excl_prog_hash_size"); + + o.excl_prog_hash = hash; + o.excl_prog_hash_size = SHA256_DIGEST_SIZE * 2; + fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "excl", 4, 4, 1, &o); + if (fd >= 0) + close(fd); + ASSERT_EQ(fd, -EINVAL, "reject long excl_prog_hash_size"); + + o.excl_prog_hash = hash; + o.excl_prog_hash_size = 0; + fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "excl", 4, 4, 1, &o); + if (fd >= 0) + close(fd); + ASSERT_EQ(fd, -EINVAL, "reject hash pointer with zero size"); + + o.excl_prog_hash = NULL; + o.excl_prog_hash_size = SHA256_DIGEST_SIZE; + fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "excl", 4, 4, 1, &o); + if (fd >= 0) + close(fd); + ASSERT_EQ(fd, -EINVAL, "reject size with NULL hash pointer"); +} + void test_map_excl(void) { if (test__start_subtest("map_excl_allowed")) @@ -136,4 +171,6 @@ void test_map_excl(void) test_map_excl_no_map_in_map(); if (test__start_subtest("map_excl_no_map_iter")) test_map_excl_no_map_iter(); + if (test__start_subtest("map_excl_create_validation")) + test_map_excl_create_validation(); } |