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| author | Yonghong Song <yhs@fb.com> | 2020-07-23 11:41:17 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-07-25 20:16:33 -0700 |
| commit | cd31039a7347610863aa8b77a9162048999723d0 (patch) | |
| tree | 1484dab071877cccf5a8fe973c7392f123aa7ac8 /tools/lib/bpf/libbpf.h | |
| parent | 5ce6e77c7edf7310a0ff9532fd6b9693c082ab32 (diff) | |
| download | linux-cd31039a7347610863aa8b77a9162048999723d0.tar.gz linux-cd31039a7347610863aa8b77a9162048999723d0.tar.bz2 linux-cd31039a7347610863aa8b77a9162048999723d0.zip | |
tools/libbpf: Add support for bpf map element iterator
Add map_fd to bpf_iter_attach_opts and flags to
bpf_link_create_opts. Later on, bpftool or selftest
will be able to create a bpf map element iterator
by passing map_fd to the kernel during link
creation time.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200723184117.590673-1-yhs@fb.com
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
| -rw-r--r-- | tools/lib/bpf/libbpf.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index c2272132e929..c6813791fa7e 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -264,8 +264,9 @@ LIBBPF_API struct bpf_link *bpf_map__attach_struct_ops(struct bpf_map *map); struct bpf_iter_attach_opts { size_t sz; /* size of this struct for forward/backward compatibility */ + __u32 map_fd; }; -#define bpf_iter_attach_opts__last_field sz +#define bpf_iter_attach_opts__last_field map_fd LIBBPF_API struct bpf_link * bpf_program__attach_iter(struct bpf_program *prog, |