1*6061a3d6SEric Leblond /* SPDX-License-Identifier: LGPL-2.1 */ 2*6061a3d6SEric Leblond 3e3ed2fefSWang Nan /* 4e3ed2fefSWang Nan * common eBPF ELF operations. 5e3ed2fefSWang Nan * 6e3ed2fefSWang Nan * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org> 7e3ed2fefSWang Nan * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com> 8e3ed2fefSWang Nan * Copyright (C) 2015 Huawei Inc. 9203d1cacSWang Nan * 10203d1cacSWang Nan * This program is free software; you can redistribute it and/or 11203d1cacSWang Nan * modify it under the terms of the GNU Lesser General Public 12203d1cacSWang Nan * License as published by the Free Software Foundation; 13203d1cacSWang Nan * version 2.1 of the License (not later!) 14203d1cacSWang Nan * 15203d1cacSWang Nan * This program is distributed in the hope that it will be useful, 16203d1cacSWang Nan * but WITHOUT ANY WARRANTY; without even the implied warranty of 17203d1cacSWang Nan * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18203d1cacSWang Nan * GNU Lesser General Public License for more details. 19203d1cacSWang Nan * 20203d1cacSWang Nan * You should have received a copy of the GNU Lesser General Public 21203d1cacSWang Nan * License along with this program; if not, see <http://www.gnu.org/licenses> 22e3ed2fefSWang Nan */ 23e3ed2fefSWang Nan #ifndef __BPF_BPF_H 24e3ed2fefSWang Nan #define __BPF_BPF_H 25e3ed2fefSWang Nan 26e3ed2fefSWang Nan #include <linux/bpf.h> 277a5980f9SMickaël Salaün #include <stddef.h> 28e3ed2fefSWang Nan 2988cda1c9SMartin KaFai Lau int bpf_create_map_node(enum bpf_map_type map_type, const char *name, 3088cda1c9SMartin KaFai Lau int key_size, int value_size, int max_entries, 3188cda1c9SMartin KaFai Lau __u32 map_flags, int node); 3288cda1c9SMartin KaFai Lau int bpf_create_map_name(enum bpf_map_type map_type, const char *name, 3388cda1c9SMartin KaFai Lau int key_size, int value_size, int max_entries, 3488cda1c9SMartin KaFai Lau __u32 map_flags); 35e3ed2fefSWang Nan int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size, 36a5580c7fSJoe Stringer int max_entries, __u32 map_flags); 3788cda1c9SMartin KaFai Lau int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name, 3888cda1c9SMartin KaFai Lau int key_size, int inner_map_fd, int max_entries, 39ad17d0e6SMartin KaFai Lau __u32 map_flags, int node); 4088cda1c9SMartin KaFai Lau int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name, 4188cda1c9SMartin KaFai Lau int key_size, int inner_map_fd, int max_entries, 4288cda1c9SMartin KaFai Lau __u32 map_flags); 43e3ed2fefSWang Nan 447bf98369SWang Nan /* Recommend log buffer size */ 4548cca7e4SAlexei Starovoitov #define BPF_LOG_BUF_SIZE (256 * 1024) 4688cda1c9SMartin KaFai Lau int bpf_load_program_name(enum bpf_prog_type type, const char *name, 4788cda1c9SMartin KaFai Lau const struct bpf_insn *insns, 4888cda1c9SMartin KaFai Lau size_t insns_cnt, const char *license, 4988cda1c9SMartin KaFai Lau __u32 kern_version, char *log_buf, 5088cda1c9SMartin KaFai Lau size_t log_buf_sz); 512ee89fb9SMickaël Salaün int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns, 522ee89fb9SMickaël Salaün size_t insns_cnt, const char *license, 5383d994d0SJoe Stringer __u32 kern_version, char *log_buf, 547bf98369SWang Nan size_t log_buf_sz); 5591045f5eSDavid S. Miller int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns, 5691045f5eSDavid S. Miller size_t insns_cnt, int strict_alignment, 5791045f5eSDavid S. Miller const char *license, __u32 kern_version, 58d6554904SDaniel Borkmann char *log_buf, size_t log_buf_sz, int log_level); 597bf98369SWang Nan 6010ecc728SMickaël Salaün int bpf_map_update_elem(int fd, const void *key, const void *value, 6183d994d0SJoe Stringer __u64 flags); 629742da01SWang Nan 63e5ff7c40SMickaël Salaün int bpf_map_lookup_elem(int fd, const void *key, void *value); 64e58383b8SMickaël Salaün int bpf_map_delete_elem(int fd, const void *key); 655f155c25SMickaël Salaün int bpf_map_get_next_key(int fd, const void *key, void *next_key); 669742da01SWang Nan int bpf_obj_pin(int fd, const char *pathname); 679742da01SWang Nan int bpf_obj_get(const char *pathname); 687f677633SAlexei Starovoitov int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type, 697f677633SAlexei Starovoitov unsigned int flags); 705dc880deSJoe Stringer int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type); 71244d20efSAlexei Starovoitov int bpf_prog_detach2(int prog_fd, int attachable_fd, enum bpf_attach_type type); 7230848873SAlexei Starovoitov int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size, 7330848873SAlexei Starovoitov void *data_out, __u32 *size_out, __u32 *retval, 7430848873SAlexei Starovoitov __u32 *duration); 7595b9afd3SMartin KaFai Lau int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id); 7695b9afd3SMartin KaFai Lau int bpf_map_get_next_id(__u32 start_id, __u32 *next_id); 7795b9afd3SMartin KaFai Lau int bpf_prog_get_fd_by_id(__u32 id); 7895b9afd3SMartin KaFai Lau int bpf_map_get_fd_by_id(__u32 id); 7995b9afd3SMartin KaFai Lau int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len); 805d0cbf9bSAlexei Starovoitov int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags, 815d0cbf9bSAlexei Starovoitov __u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt); 82e3ed2fefSWang Nan #endif 83