diff options
Diffstat (limited to 'include/uapi/linux/bpf.h')
| -rw-r--r-- | include/uapi/linux/bpf.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index d18316f9e9c4..45da7ec7d274 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -82,7 +82,7 @@ enum bpf_cmd { /* create or update key/value pair in a given map * err = bpf(BPF_MAP_UPDATE_ELEM, union bpf_attr *attr, u32 size) - * Using attr->map_fd, attr->key, attr->value + * Using attr->map_fd, attr->key, attr->value, attr->flags * returns zero or negative error */ BPF_MAP_UPDATE_ELEM, @@ -111,12 +111,20 @@ enum bpf_cmd { enum bpf_map_type { BPF_MAP_TYPE_UNSPEC, + BPF_MAP_TYPE_HASH, + BPF_MAP_TYPE_ARRAY, }; enum bpf_prog_type { BPF_PROG_TYPE_UNSPEC, + BPF_PROG_TYPE_SOCKET_FILTER, }; +/* flags for BPF_MAP_UPDATE_ELEM command */ +#define BPF_ANY 0 /* create new element or update existing */ +#define BPF_NOEXIST 1 /* create new element if it didn't exist */ +#define BPF_EXIST 2 /* update existing element */ + union bpf_attr { struct { /* anonymous struct used by BPF_MAP_CREATE command */ __u32 map_type; /* one of enum bpf_map_type */ @@ -132,6 +140,7 @@ union bpf_attr { __aligned_u64 value; __aligned_u64 next_key; }; + __u64 flags; }; struct { /* anonymous struct used by BPF_PROG_LOAD command */ @@ -150,6 +159,9 @@ union bpf_attr { */ enum bpf_func_id { BPF_FUNC_unspec, + BPF_FUNC_map_lookup_elem, /* void *map_lookup_elem(&map, &key) */ + BPF_FUNC_map_update_elem, /* int map_update_elem(&map, &key, &value, flags) */ + BPF_FUNC_map_delete_elem, /* int map_delete_elem(&map, &key) */ __BPF_FUNC_MAX_ID, }; |