Wang Nan | e3ed2fe | 2015-07-01 02:14:03 +0000 | [diff] [blame] | 1 | /* |
| 2 | * common eBPF ELF operations. |
| 3 | * |
| 4 | * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org> |
| 5 | * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com> |
| 6 | * Copyright (C) 2015 Huawei Inc. |
Wang Nan | 203d1ca | 2016-07-04 11:02:42 +0000 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU Lesser General Public |
| 10 | * License as published by the Free Software Foundation; |
| 11 | * version 2.1 of the License (not later!) |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU Lesser General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public |
| 19 | * License along with this program; if not, see <http://www.gnu.org/licenses> |
Wang Nan | e3ed2fe | 2015-07-01 02:14:03 +0000 | [diff] [blame] | 20 | */ |
| 21 | #ifndef __BPF_BPF_H |
| 22 | #define __BPF_BPF_H |
| 23 | |
| 24 | #include <linux/bpf.h> |
Mickaël Salaün | 7a5980f | 2017-02-07 21:56:05 +0100 | [diff] [blame] | 25 | #include <stddef.h> |
Wang Nan | e3ed2fe | 2015-07-01 02:14:03 +0000 | [diff] [blame] | 26 | |
Martin KaFai Lau | ad17d0e | 2017-08-18 11:28:01 -0700 | [diff] [blame] | 27 | int bpf_create_map_node(enum bpf_map_type map_type, int key_size, |
| 28 | int value_size, int max_entries, __u32 map_flags, |
| 29 | int node); |
Wang Nan | e3ed2fe | 2015-07-01 02:14:03 +0000 | [diff] [blame] | 30 | int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size, |
Joe Stringer | a5580c7 | 2016-12-08 18:46:16 -0800 | [diff] [blame] | 31 | int max_entries, __u32 map_flags); |
Martin KaFai Lau | ad17d0e | 2017-08-18 11:28:01 -0700 | [diff] [blame] | 32 | int bpf_create_map_in_map_node(enum bpf_map_type map_type, int key_size, |
| 33 | int inner_map_fd, int max_entries, |
| 34 | __u32 map_flags, int node); |
Martin KaFai Lau | fb30d4b | 2017-03-22 10:00:35 -0700 | [diff] [blame] | 35 | int bpf_create_map_in_map(enum bpf_map_type map_type, int key_size, |
| 36 | int inner_map_fd, int max_entries, __u32 map_flags); |
Wang Nan | e3ed2fe | 2015-07-01 02:14:03 +0000 | [diff] [blame] | 37 | |
Wang Nan | 7bf9836 | 2015-07-01 02:14:06 +0000 | [diff] [blame] | 38 | /* Recommend log buffer size */ |
| 39 | #define BPF_LOG_BUF_SIZE 65536 |
Mickaël Salaün | 2ee89fb | 2017-02-10 00:21:38 +0100 | [diff] [blame] | 40 | int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns, |
| 41 | size_t insns_cnt, const char *license, |
Joe Stringer | 83d994d | 2016-12-08 18:46:15 -0800 | [diff] [blame] | 42 | __u32 kern_version, char *log_buf, |
Wang Nan | 7bf9836 | 2015-07-01 02:14:06 +0000 | [diff] [blame] | 43 | size_t log_buf_sz); |
David S. Miller | 91045f5 | 2017-05-10 11:42:48 -0700 | [diff] [blame] | 44 | int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns, |
| 45 | size_t insns_cnt, int strict_alignment, |
| 46 | const char *license, __u32 kern_version, |
Daniel Borkmann | d655490 | 2017-07-21 00:00:22 +0200 | [diff] [blame] | 47 | char *log_buf, size_t log_buf_sz, int log_level); |
Wang Nan | 7bf9836 | 2015-07-01 02:14:06 +0000 | [diff] [blame] | 48 | |
Mickaël Salaün | 10ecc72 | 2017-02-10 00:21:39 +0100 | [diff] [blame] | 49 | int bpf_map_update_elem(int fd, const void *key, const void *value, |
Joe Stringer | 83d994d | 2016-12-08 18:46:15 -0800 | [diff] [blame] | 50 | __u64 flags); |
Wang Nan | 9742da0 | 2016-11-26 07:03:25 +0000 | [diff] [blame] | 51 | |
Mickaël Salaün | e5ff7c4 | 2017-02-10 00:21:40 +0100 | [diff] [blame] | 52 | int bpf_map_lookup_elem(int fd, const void *key, void *value); |
Mickaël Salaün | e58383b | 2017-02-10 00:21:41 +0100 | [diff] [blame] | 53 | int bpf_map_delete_elem(int fd, const void *key); |
Mickaël Salaün | 5f155c2 | 2017-02-10 00:21:42 +0100 | [diff] [blame] | 54 | int bpf_map_get_next_key(int fd, const void *key, void *next_key); |
Wang Nan | 9742da0 | 2016-11-26 07:03:25 +0000 | [diff] [blame] | 55 | int bpf_obj_pin(int fd, const char *pathname); |
| 56 | int bpf_obj_get(const char *pathname); |
Alexei Starovoitov | 7f67763 | 2017-02-10 20:28:24 -0800 | [diff] [blame] | 57 | int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type, |
| 58 | unsigned int flags); |
Joe Stringer | 5dc880d | 2016-12-14 14:05:26 -0800 | [diff] [blame] | 59 | int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type); |
Alexei Starovoitov | 3084887 | 2017-03-30 21:45:39 -0700 | [diff] [blame] | 60 | int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size, |
| 61 | void *data_out, __u32 *size_out, __u32 *retval, |
| 62 | __u32 *duration); |
Martin KaFai Lau | 95b9afd | 2017-06-05 12:15:53 -0700 | [diff] [blame] | 63 | int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id); |
| 64 | int bpf_map_get_next_id(__u32 start_id, __u32 *next_id); |
| 65 | int bpf_prog_get_fd_by_id(__u32 id); |
| 66 | int bpf_map_get_fd_by_id(__u32 id); |
| 67 | int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len); |
Wang Nan | 9742da0 | 2016-11-26 07:03:25 +0000 | [diff] [blame] | 68 | |
Wang Nan | e3ed2fe | 2015-07-01 02:14:03 +0000 | [diff] [blame] | 69 | #endif |