1 /* SPDX-License-Identifier: LGPL-2.1 */
4 * common eBPF ELF operations.
6 * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
7 * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
8 * Copyright (C) 2015 Huawei Inc.
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation;
13 * version 2.1 of the License (not later!)
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this program; if not, see <http://www.gnu.org/licenses>
26 #include <linux/bpf.h>
29 struct bpf_create_map_attr {
31 enum bpf_map_type map_type;
42 int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr);
43 int bpf_create_map_node(enum bpf_map_type map_type, const char *name,
44 int key_size, int value_size, int max_entries,
45 __u32 map_flags, int node);
46 int bpf_create_map_name(enum bpf_map_type map_type, const char *name,
47 int key_size, int value_size, int max_entries,
49 int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
50 int max_entries, __u32 map_flags);
51 int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name,
52 int key_size, int inner_map_fd, int max_entries,
53 __u32 map_flags, int node);
54 int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name,
55 int key_size, int inner_map_fd, int max_entries,
58 struct bpf_load_program_attr {
59 enum bpf_prog_type prog_type;
60 enum bpf_attach_type expected_attach_type;
62 const struct bpf_insn *insns;
68 /* Recommend log buffer size */
69 #define BPF_LOG_BUF_SIZE (256 * 1024)
70 int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
71 char *log_buf, size_t log_buf_sz);
72 int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
73 size_t insns_cnt, const char *license,
74 __u32 kern_version, char *log_buf,
76 int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
77 size_t insns_cnt, int strict_alignment,
78 const char *license, __u32 kern_version,
79 char *log_buf, size_t log_buf_sz, int log_level);
81 int bpf_map_update_elem(int fd, const void *key, const void *value,
84 int bpf_map_lookup_elem(int fd, const void *key, void *value);
85 int bpf_map_delete_elem(int fd, const void *key);
86 int bpf_map_get_next_key(int fd, const void *key, void *next_key);
87 int bpf_obj_pin(int fd, const char *pathname);
88 int bpf_obj_get(const char *pathname);
89 int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type,
91 int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
92 int bpf_prog_detach2(int prog_fd, int attachable_fd, enum bpf_attach_type type);
93 int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
94 void *data_out, __u32 *size_out, __u32 *retval,
96 int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id);
97 int bpf_map_get_next_id(__u32 start_id, __u32 *next_id);
98 int bpf_prog_get_fd_by_id(__u32 id);
99 int bpf_map_get_fd_by_id(__u32 id);
100 int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len);
101 int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags,
102 __u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt);
103 int bpf_raw_tracepoint_open(const char *name, int prog_fd);
104 int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,