diff options
| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2022-04-25 03:18:59 +0530 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-04-25 20:26:44 -0700 |
| commit | 2cbc469a6fc345651569f9570b899af3b005cf80 (patch) | |
| tree | e9cab595cdfdbdc6e782af28e50dd38afed22b10 /tools/testing/selftests/bpf/prog_tests/map_kptr.c | |
| parent | ef89654f2bc7459f45b40be80de6cd3765ef8539 (diff) | |
| download | linux-2cbc469a6fc345651569f9570b899af3b005cf80.tar.bz2 | |
selftests/bpf: Add C tests for kptr
This uses the __kptr and __kptr_ref macros as well, and tries to test
the stuff that is supposed to work, since we have negative tests in
test_verifier suite. Also include some code to test map-in-map support,
such that the inner_map_meta matches the kptr_off_tab of map added as
element.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220424214901.2743946-12-memxor@gmail.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/map_kptr.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/map_kptr.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/map_kptr.c b/tools/testing/selftests/bpf/prog_tests/map_kptr.c new file mode 100644 index 000000000000..9e2fbda64a65 --- /dev/null +++ b/tools/testing/selftests/bpf/prog_tests/map_kptr.c @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <test_progs.h> + +#include "map_kptr.skel.h" + +void test_map_kptr(void) +{ + struct map_kptr *skel; + int key = 0, ret; + char buf[24]; + + skel = map_kptr__open_and_load(); + if (!ASSERT_OK_PTR(skel, "map_kptr__open_and_load")) + return; + + ret = bpf_map_update_elem(bpf_map__fd(skel->maps.array_map), &key, buf, 0); + ASSERT_OK(ret, "array_map update"); + ret = bpf_map_update_elem(bpf_map__fd(skel->maps.array_map), &key, buf, 0); + ASSERT_OK(ret, "array_map update2"); + + ret = bpf_map_update_elem(bpf_map__fd(skel->maps.hash_map), &key, buf, 0); + ASSERT_OK(ret, "hash_map update"); + ret = bpf_map_delete_elem(bpf_map__fd(skel->maps.hash_map), &key); + ASSERT_OK(ret, "hash_map delete"); + + ret = bpf_map_update_elem(bpf_map__fd(skel->maps.hash_malloc_map), &key, buf, 0); + ASSERT_OK(ret, "hash_malloc_map update"); + ret = bpf_map_delete_elem(bpf_map__fd(skel->maps.hash_malloc_map), &key); + ASSERT_OK(ret, "hash_malloc_map delete"); + + ret = bpf_map_update_elem(bpf_map__fd(skel->maps.lru_hash_map), &key, buf, 0); + ASSERT_OK(ret, "lru_hash_map update"); + ret = bpf_map_delete_elem(bpf_map__fd(skel->maps.lru_hash_map), &key); + ASSERT_OK(ret, "lru_hash_map delete"); + + map_kptr__destroy(skel); +} |