tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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.
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>
20 */
21#ifndef __BPF_BPF_H
22#define __BPF_BPF_H
23
24#include <linux/bpf.h>
25#include <stddef.h>
26
27int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
28 int max_entries, __u32 map_flags);
29int bpf_create_map_in_map(enum bpf_map_type map_type, int key_size,
30 int inner_map_fd, int max_entries, __u32 map_flags);
31
32/* Recommend log buffer size */
33#define BPF_LOG_BUF_SIZE 65536
34int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
35 size_t insns_cnt, const char *license,
36 __u32 kern_version, char *log_buf,
37 size_t log_buf_sz);
38int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
39 size_t insns_cnt, int strict_alignment,
40 const char *license, __u32 kern_version,
41 char *log_buf, size_t log_buf_sz, int log_level);
42
43int bpf_map_update_elem(int fd, const void *key, const void *value,
44 __u64 flags);
45
46int bpf_map_lookup_elem(int fd, const void *key, void *value);
47int bpf_map_delete_elem(int fd, const void *key);
48int bpf_map_get_next_key(int fd, const void *key, void *next_key);
49int bpf_obj_pin(int fd, const char *pathname);
50int bpf_obj_get(const char *pathname);
51int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type,
52 unsigned int flags);
53int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
54int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
55 void *data_out, __u32 *size_out, __u32 *retval,
56 __u32 *duration);
57int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id);
58int bpf_map_get_next_id(__u32 start_id, __u32 *next_id);
59int bpf_prog_get_fd_by_id(__u32 id);
60int bpf_map_get_fd_by_id(__u32 id);
61int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len);
62
63#endif