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>
31 struct bpf_create_map_attr {
33 enum bpf_map_type map_type;
40 __u32 btf_key_type_id;
41 __u32 btf_value_type_id;
46 int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr);
47 int bpf_create_map_node(enum bpf_map_type map_type, const char *name,
48 int key_size, int value_size, int max_entries,
49 __u32 map_flags, int node);
50 int bpf_create_map_name(enum bpf_map_type map_type, const char *name,
51 int key_size, int value_size, int max_entries,
53 int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
54 int max_entries, __u32 map_flags);
55 int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name,
56 int key_size, int inner_map_fd, int max_entries,
57 __u32 map_flags, int node);
58 int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name,
59 int key_size, int inner_map_fd, int max_entries,
62 struct bpf_load_program_attr {
63 enum bpf_prog_type prog_type;
64 enum bpf_attach_type expected_attach_type;
66 const struct bpf_insn *insns;
73 /* Recommend log buffer size */
74 #define BPF_LOG_BUF_SIZE (256 * 1024)
75 int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr,
76 char *log_buf, size_t log_buf_sz);
77 int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
78 size_t insns_cnt, const char *license,
79 __u32 kern_version, char *log_buf,
81 int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns,
82 size_t insns_cnt, __u32 prog_flags,
83 const char *license, __u32 kern_version,
84 char *log_buf, size_t log_buf_sz, int log_level);
86 int bpf_map_update_elem(int fd, const void *key, const void *value,
89 int bpf_map_lookup_elem(int fd, const void *key, void *value);
90 int bpf_map_delete_elem(int fd, const void *key);
91 int bpf_map_get_next_key(int fd, const void *key, void *next_key);
92 int bpf_obj_pin(int fd, const char *pathname);
93 int bpf_obj_get(const char *pathname);
94 int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type,
96 int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type);
97 int bpf_prog_detach2(int prog_fd, int attachable_fd, enum bpf_attach_type type);
98 int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size,
99 void *data_out, __u32 *size_out, __u32 *retval,
101 int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id);
102 int bpf_map_get_next_id(__u32 start_id, __u32 *next_id);
103 int bpf_prog_get_fd_by_id(__u32 id);
104 int bpf_map_get_fd_by_id(__u32 id);
105 int bpf_btf_get_fd_by_id(__u32 id);
106 int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len);
107 int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags,
108 __u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt);
109 int bpf_raw_tracepoint_open(const char *name, int prog_fd);
110 int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size,
112 int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len,
113 __u32 *prog_id, __u32 *fd_type, __u64 *probe_offset,