| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [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. |
| 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 | #include <stdint.h> |
| 27 | |
| 28 | int bpf_create_map_node(enum bpf_map_type map_type, int key_size, |
| 29 | int value_size, int max_entries, __u32 map_flags, |
| 30 | int node); |
| 31 | int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size, |
| 32 | int max_entries, __u32 map_flags); |
| 33 | int bpf_create_map_in_map_node(enum bpf_map_type map_type, int key_size, |
| 34 | int inner_map_fd, int max_entries, |
| 35 | __u32 map_flags, int node); |
| 36 | int bpf_create_map_in_map(enum bpf_map_type map_type, int key_size, |
| 37 | int inner_map_fd, int max_entries, __u32 map_flags); |
| 38 | |
| 39 | /* Recommend log buffer size */ |
| 40 | #define BPF_LOG_BUF_SIZE 65536 |
| 41 | int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns, |
| 42 | size_t insns_cnt, const char *license, |
| 43 | __u32 kern_version, char *log_buf, |
| 44 | size_t log_buf_sz); |
| 45 | int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns, |
| 46 | size_t insns_cnt, int strict_alignment, |
| 47 | const char *license, __u32 kern_version, |
| 48 | char *log_buf, size_t log_buf_sz, int log_level); |
| 49 | |
| 50 | int bpf_map_update_elem(int fd, const void *key, const void *value, |
| 51 | __u64 flags); |
| 52 | |
| 53 | int bpf_map_lookup_elem(int fd, const void *key, void *value); |
| 54 | int bpf_map_delete_elem(int fd, const void *key); |
| 55 | int bpf_map_get_next_key(int fd, const void *key, void *next_key); |
| 56 | int bpf_obj_pin(int fd, const char *pathname); |
| 57 | int bpf_obj_get(const char *pathname); |
| 58 | int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type, |
| 59 | unsigned int flags); |
| 60 | int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type); |
| 61 | int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size, |
| 62 | void *data_out, __u32 *size_out, __u32 *retval, |
| 63 | __u32 *duration); |
| 64 | int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id); |
| 65 | int bpf_map_get_next_id(__u32 start_id, __u32 *next_id); |
| 66 | int bpf_prog_get_fd_by_id(__u32 id); |
| 67 | int bpf_map_get_fd_by_id(__u32 id); |
| 68 | int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len); |
| 69 | |
| 70 | #endif |