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| author | Tyrone Wu <wudevelops@gmail.com> | 2024-10-11 03:08:03 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2024-10-11 05:11:28 +0300 |
| commit | b836cbdf3b81a4a22b3452186efa2e5105a77e10 (patch) | |
| tree | e8ab78470cdacf7e5c4607faf6d3bc761413c0ed /tools | |
| parent | ad6b5b6ea9b764018249285a4fe0a2226bef4caa (diff) | |
| download | linux-b836cbdf3b81a4a22b3452186efa2e5105a77e10.tar.xz | |
selftests/bpf: Assert link info uprobe_multi count & path_size if unset
Add assertions in `bpf_link_info.uprobe_multi` test to verify that
`count` and `path_size` fields are correctly populated when the fields
are unset.
This tests a previous bug where the `path_size` field was not populated
when `path` and `path_size` were unset.
Signed-off-by: Tyrone Wu <wudevelops@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20241011000803.681190-2-wudevelops@gmail.com
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/fill_link_info.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/fill_link_info.c b/tools/testing/selftests/bpf/prog_tests/fill_link_info.c index 745c5ada4c4b..d50cbd8040d4 100644 --- a/tools/testing/selftests/bpf/prog_tests/fill_link_info.c +++ b/tools/testing/selftests/bpf/prog_tests/fill_link_info.c @@ -420,6 +420,15 @@ verify_umulti_link_info(int fd, bool retprobe, __u64 *offsets, if (!ASSERT_NEQ(err, -1, "readlink")) return -1; + memset(&info, 0, sizeof(info)); + err = bpf_link_get_info_by_fd(fd, &info, &len); + if (!ASSERT_OK(err, "bpf_link_get_info_by_fd")) + return -1; + + ASSERT_EQ(info.uprobe_multi.count, 3, "info.uprobe_multi.count"); + ASSERT_EQ(info.uprobe_multi.path_size, strlen(path) + 1, + "info.uprobe_multi.path_size"); + for (bit = 0; bit < 8; bit++) { memset(&info, 0, sizeof(info)); info.uprobe_multi.path = ptr_to_u64(path_buf); |