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| author |   Maciej Fijalkowski <maciejromanfijalkowski@gmail.com> | 2019-02-01 22:42:29 +0100 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-02-01 23:37:51 +0100 |
| commit | 50db9f0731889b9f3839cab5f44163733eb44f04 (patch) | |
| tree | c258a5f0eed345e022e671195b27623161ab763f /tools/lib/bpf/libbpf.map | |
| parent | samples/bpf: Add a "force" flag to XDP samples (diff) | |
| download | linux-dev-50db9f0731889b9f3839cab5f44163733eb44f04.tar.xz linux-dev-50db9f0731889b9f3839cab5f44163733eb44f04.zip | |
libbpf: Add a support for getting xdp prog id on ifindex
Since we have a dedicated netlink attributes for xdp setup on a
particular interface, it is now possible to retrieve the program id that
is currently attached to the interface. The use case is targeted for
sample xdp programs, which will store the program id just after loading
bpf program onto iface. On shutdown, the sample will make sure that it
can unload the program by querying again the iface and verifying that
both program id's matches.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools/lib/bpf/libbpf.map')
| -rw-r--r-- | tools/lib/bpf/libbpf.map | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map index 43ba9bb8d24b..62c680fb13d1 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -132,4 +132,5 @@ LIBBPF_0.0.2 { bpf_probe_prog_type; bpf_map_lookup_elem_flags; bpf_object__find_map_fd_by_name; + bpf_get_link_xdp_id; } LIBBPF_0.0.1; |