On Wed, Jul 24, 2019 at 10:10 AM Brian Vazquez <brianvv@xxxxxxxxxx> wrote:
>
> Adds bpf_attr.dump structure to libbpf.
>
> Suggested-by: Stanislav Fomichev <sdf@xxxxxxxxxx>
> Signed-off-by: Brian Vazquez <brianvv@xxxxxxxxxx>
> ---
> tools/include/uapi/linux/bpf.h | 9 +++++++++
> tools/lib/bpf/libbpf.map | 2 ++
> 2 files changed, 11 insertions(+)
>
> diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
> index 4e455018da65f..e127f16e4e932 100644
> --- a/tools/include/uapi/linux/bpf.h
> +++ b/tools/include/uapi/linux/bpf.h
> @@ -106,6 +106,7 @@ enum bpf_cmd {
> BPF_TASK_FD_QUERY,
> BPF_MAP_LOOKUP_AND_DELETE_ELEM,
> BPF_MAP_FREEZE,
> + BPF_MAP_DUMP,
> };
>
> enum bpf_map_type {
> @@ -388,6 +389,14 @@ union bpf_attr {
> __u64 flags;
> };
>
> + struct { /* struct used by BPF_MAP_DUMP command */
> + __aligned_u64 prev_key;
> + __aligned_u64 buf;
> + __aligned_u64 buf_len; /* input/output: len of buf */
> + __u64 flags;
> + __u32 map_fd;
> + } dump;
> +
> struct { /* anonymous struct used by BPF_PROG_LOAD command */
> __u32 prog_type; /* one of enum bpf_prog_type */
> __u32 insn_cnt;
> diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
> index f9d316e873d8d..cac3723d5c45c 100644
> --- a/tools/lib/bpf/libbpf.map
> +++ b/tools/lib/bpf/libbpf.map
> @@ -183,4 +183,6 @@ LIBBPF_0.0.4 {
> perf_buffer__new;
> perf_buffer__new_raw;
> perf_buffer__poll;
> + bpf_map_dump;
> + bpf_map_dump_flags;
> } LIBBPF_0.0.3;
libbpf.map change should go with 4/6.
> --
> 2.22.0.657.g960e92d24f-goog
>
