| Alexei Starovoitov | 99c55f7 | 2014-09-26 00:16:57 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or |
| 4 | * modify it under the terms of version 2 of the GNU General Public |
| 5 | * License as published by the Free Software Foundation. |
| 6 | */ |
| 7 | #ifndef _LINUX_BPF_H |
| 8 | #define _LINUX_BPF_H 1 |
| 9 | |
| 10 | #include <uapi/linux/bpf.h> |
| 11 | #include <linux/workqueue.h> |
| 12 | |
| 13 | struct bpf_map; |
| 14 | |
| 15 | /* map is generic key/value storage optionally accesible by eBPF programs */ |
| 16 | struct bpf_map_ops { |
| 17 | /* funcs callable from userspace (via syscall) */ |
| 18 | struct bpf_map *(*map_alloc)(union bpf_attr *attr); |
| 19 | void (*map_free)(struct bpf_map *); |
| 20 | }; |
| 21 | |
| 22 | struct bpf_map { |
| 23 | atomic_t refcnt; |
| 24 | enum bpf_map_type map_type; |
| 25 | u32 key_size; |
| 26 | u32 value_size; |
| 27 | u32 max_entries; |
| 28 | struct bpf_map_ops *ops; |
| 29 | struct work_struct work; |
| 30 | }; |
| 31 | |
| 32 | struct bpf_map_type_list { |
| 33 | struct list_head list_node; |
| 34 | struct bpf_map_ops *ops; |
| 35 | enum bpf_map_type type; |
| 36 | }; |
| 37 | |
| 38 | void bpf_register_map_type(struct bpf_map_type_list *tl); |
| 39 | void bpf_map_put(struct bpf_map *map); |
| 40 | |
| 41 | #endif /* _LINUX_BPF_H */ |