diff options
| author | Martin KaFai Lau <kafai@fb.com> | 2017-09-27 14:37:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-09-29 06:17:05 +0100 |
| commit | ad5b177bd73f5107d97c36f56395c4281fb6f089 (patch) | |
| tree | 90f03bf2a9ce3370d0979524a10784bce7714042 /include | |
| parent | cb4d2b3f03d8eed90be3a194e5b54b734ec4bbe9 (diff) | |
| download | linux-ad5b177bd73f5107d97c36f56395c4281fb6f089.tar.bz2 | |
bpf: Add map_name to bpf_map_info
This patch allows userspace to specify a name for a map
during BPF_MAP_CREATE.
The map's name can later be exported to user space
via BPF_OBJ_GET_INFO_BY_FD.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Alexei Starovoitov <ast@fb.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bpf.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/bpf.h | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/bpf.h b/include/linux/bpf.h index 33ccc474fb04..252f4bc9eb25 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -56,6 +56,7 @@ struct bpf_map { struct work_struct work; atomic_t usercnt; struct bpf_map *inner_map_meta; + u8 name[BPF_OBJ_NAME_LEN]; }; /* function argument constraints */ diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index bd6348269bf5..6d2137b4cf38 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -190,6 +190,7 @@ union bpf_attr { __u32 numa_node; /* numa node (effective only if * BPF_F_NUMA_NODE is set). */ + __u8 map_name[BPF_OBJ_NAME_LEN]; }; struct { /* anonymous struct used by BPF_MAP_*_ELEM commands */ @@ -829,6 +830,7 @@ struct bpf_map_info { __u32 value_size; __u32 max_entries; __u32 map_flags; + __u8 name[BPF_OBJ_NAME_LEN]; } __attribute__((aligned(8))); /* User bpf_sock_ops struct to access socket values and specify request ops |