blob: b8ea5843c39ee7151879d39e422f9a4d41f5434a [file] [log] [blame]
Wang Nane3ed2fe2015-07-01 02:14:03 +00001/*
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 Nan203d1ca2016-07-04 11:02:42 +00007 *
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 Nane3ed2fe2015-07-01 02:14:03 +000020 */
21#ifndef __BPF_BPF_H
22#define __BPF_BPF_H
23
24#include <linux/bpf.h>
Mickaël Salaün7a5980f2017-02-07 21:56:05 +010025#include <stddef.h>
Wang Nane3ed2fe2015-07-01 02:14:03 +000026
Martin KaFai Lauad17d0e2017-08-18 11:28:01 -070027int 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 Nane3ed2fe2015-07-01 02:14:03 +000030int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
Joe Stringera5580c72016-12-08 18:46:16 -080031 int max_entries, __u32 map_flags);
Martin KaFai Lauad17d0e2017-08-18 11:28:01 -070032int 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 Laufb30d4b2017-03-22 10:00:35 -070035int 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 Nane3ed2fe2015-07-01 02:14:03 +000037
Wang Nan7bf98362015-07-01 02:14:06 +000038/* Recommend log buffer size */
39#define BPF_LOG_BUF_SIZE 65536
Mickaël Salaün2ee89fb2017-02-10 00:21:38 +010040int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
41 size_t insns_cnt, const char *license,
Joe Stringer83d994d2016-12-08 18:46:15 -080042 __u32 kern_version, char *log_buf,
Wang Nan7bf98362015-07-01 02:14:06 +000043 size_t log_buf_sz);
David S. Miller91045f52017-05-10 11:42:48 -070044int 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 Borkmannd6554902017-07-21 00:00:22 +020047 char *log_buf, size_t log_buf_sz, int log_level);
Wang Nan7bf98362015-07-01 02:14:06 +000048
Mickaël Salaün10ecc722017-02-10 00:21:39 +010049int bpf_map_update_elem(int fd, const void *key, const void *value,
Joe Stringer83d994d2016-12-08 18:46:15 -080050 __u64 flags);
Wang Nan9742da02016-11-26 07:03:25 +000051
Mickaël Salaüne5ff7c42017-02-10 00:21:40 +010052int bpf_map_lookup_elem(int fd, const void *key, void *value);
Mickaël Salaüne58383b2017-02-10 00:21:41 +010053int bpf_map_delete_elem(int fd, const void *key);
Mickaël Salaün5f155c22017-02-10 00:21:42 +010054int bpf_map_get_next_key(int fd, const void *key, void *next_key);
Wang Nan9742da02016-11-26 07:03:25 +000055int bpf_obj_pin(int fd, const char *pathname);
56int bpf_obj_get(const char *pathname);
Alexei Starovoitov7f677632017-02-10 20:28:24 -080057int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type,
58 unsigned int flags);
Joe Stringer5dc880d2016-12-14 14:05:26 -080059int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
Alexei Starovoitov30848872017-03-30 21:45:39 -070060int 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 Lau95b9afd2017-06-05 12:15:53 -070063int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id);
64int bpf_map_get_next_id(__u32 start_id, __u32 *next_id);
65int bpf_prog_get_fd_by_id(__u32 id);
66int bpf_map_get_fd_by_id(__u32 id);
67int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len);
Wang Nan9742da02016-11-26 07:03:25 +000068
Wang Nane3ed2fe2015-07-01 02:14:03 +000069#endif