diff options
Diffstat (limited to 'samples/bpf/test_map_in_map_user.c')
| -rw-r--r-- | samples/bpf/test_map_in_map_user.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/samples/bpf/test_map_in_map_user.c b/samples/bpf/test_map_in_map_user.c index f62fdc2bd428..1aca18539d8d 100644 --- a/samples/bpf/test_map_in_map_user.c +++ b/samples/bpf/test_map_in_map_user.c @@ -32,6 +32,20 @@ static const char * const test_names[] = { #define NR_TESTS (sizeof(test_names) / sizeof(*test_names)) +static void check_map_id(int inner_map_fd, int map_in_map_fd, uint32_t key) +{ + struct bpf_map_info info = {}; + uint32_t info_len = sizeof(info); + int ret, id; + + ret = bpf_obj_get_info_by_fd(inner_map_fd, &info, &info_len); + assert(!ret); + + ret = bpf_map_lookup_elem(map_in_map_fd, &key, &id); + assert(!ret); + assert(id == info.id); +} + static void populate_map(uint32_t port_key, int magic_result) { int ret; @@ -45,12 +59,15 @@ static void populate_map(uint32_t port_key, int magic_result) ret = bpf_map_update_elem(A_OF_PORT_A, &port_key, &PORT_A, BPF_ANY); assert(!ret); + check_map_id(PORT_A, A_OF_PORT_A, port_key); ret = bpf_map_update_elem(H_OF_PORT_A, &port_key, &PORT_A, BPF_NOEXIST); assert(!ret); + check_map_id(PORT_A, H_OF_PORT_A, port_key); ret = bpf_map_update_elem(H_OF_PORT_H, &port_key, &PORT_H, BPF_NOEXIST); assert(!ret); + check_map_id(PORT_H, H_OF_PORT_H, port_key); } static void test_map_in_map(void) |