From 90806ccc90bbd0150267a97ae4003269597a6a6c Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Fri, 31 Jul 2020 11:28:28 -0700 Subject: selftests/bpf: Add link detach tests for cgroup, netns, and xdp bpf_links Add bpf_link__detach() testing to selftests for cgroup, netns, and xdp bpf_links. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Acked-by: Song Liu Acked-by: John Fastabend Link: https://lore.kernel.org/bpf/20200731182830.286260-4-andriin@fb.com --- tools/testing/selftests/bpf/testing_helpers.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'tools/testing/selftests/bpf/testing_helpers.c') diff --git a/tools/testing/selftests/bpf/testing_helpers.c b/tools/testing/selftests/bpf/testing_helpers.c index 0af6337a8962..800d503e5cb4 100644 --- a/tools/testing/selftests/bpf/testing_helpers.c +++ b/tools/testing/selftests/bpf/testing_helpers.c @@ -64,3 +64,17 @@ int parse_num_list(const char *s, bool **num_set, int *num_set_len) return 0; } + +__u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info) +{ + __u32 info_len = sizeof(*info); + int err; + + memset(info, 0, sizeof(*info)); + err = bpf_obj_get_info_by_fd(bpf_link__fd(link), info, &info_len); + if (err) { + printf("failed to get link info: %d\n", -errno); + return 0; + } + return info->prog_id; +} -- cgit v1.2.3