11bc38b8fSAlexei Starovoitov /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ 26061a3d6SEric 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 */ 23eff81908SAndrey Ignatov #ifndef __LIBBPF_BPF_H 24eff81908SAndrey Ignatov #define __LIBBPF_BPF_H 25e3ed2fefSWang Nan 26e3ed2fefSWang Nan #include <linux/bpf.h> 27878a4d32SBjörn Töpel #include <stdbool.h> 287a5980f9SMickaël Salaün #include <stddef.h> 29e3ed2fefSWang Nan 308a138aedSMartin KaFai Lau struct bpf_create_map_attr { 318a138aedSMartin KaFai Lau const char *name; 328a138aedSMartin KaFai Lau enum bpf_map_type map_type; 338a138aedSMartin KaFai Lau __u32 map_flags; 348a138aedSMartin KaFai Lau __u32 key_size; 358a138aedSMartin KaFai Lau __u32 value_size; 368a138aedSMartin KaFai Lau __u32 max_entries; 378a138aedSMartin KaFai Lau __u32 numa_node; 388a138aedSMartin KaFai Lau __u32 btf_fd; 3961746dbeSMartin KaFai Lau __u32 btf_key_type_id; 4061746dbeSMartin KaFai Lau __u32 btf_value_type_id; 41f0307a7eSDavid Beckett __u32 map_ifindex; 4291134d84SMartin KaFai Lau __u32 inner_map_fd; 438a138aedSMartin KaFai Lau }; 448a138aedSMartin KaFai Lau 458a138aedSMartin KaFai Lau int bpf_create_map_xattr(const struct bpf_create_map_attr *create_attr); 4688cda1c9SMartin KaFai Lau int bpf_create_map_node(enum bpf_map_type map_type, const char *name, 4788cda1c9SMartin KaFai Lau int key_size, int value_size, int max_entries, 4888cda1c9SMartin KaFai Lau __u32 map_flags, int node); 4988cda1c9SMartin KaFai Lau int bpf_create_map_name(enum bpf_map_type map_type, const char *name, 5088cda1c9SMartin KaFai Lau int key_size, int value_size, int max_entries, 5188cda1c9SMartin KaFai Lau __u32 map_flags); 52e3ed2fefSWang Nan int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size, 53a5580c7fSJoe Stringer int max_entries, __u32 map_flags); 5488cda1c9SMartin KaFai Lau int bpf_create_map_in_map_node(enum bpf_map_type map_type, const char *name, 5588cda1c9SMartin KaFai Lau int key_size, int inner_map_fd, int max_entries, 56ad17d0e6SMartin KaFai Lau __u32 map_flags, int node); 5788cda1c9SMartin KaFai Lau int bpf_create_map_in_map(enum bpf_map_type map_type, const char *name, 5888cda1c9SMartin KaFai Lau int key_size, int inner_map_fd, int max_entries, 5988cda1c9SMartin KaFai Lau __u32 map_flags); 60e3ed2fefSWang Nan 61d7be143bSAndrey Ignatov struct bpf_load_program_attr { 62d7be143bSAndrey Ignatov enum bpf_prog_type prog_type; 63d7be143bSAndrey Ignatov enum bpf_attach_type expected_attach_type; 64d7be143bSAndrey Ignatov const char *name; 65d7be143bSAndrey Ignatov const struct bpf_insn *insns; 66d7be143bSAndrey Ignatov size_t insns_cnt; 67d7be143bSAndrey Ignatov const char *license; 68d7be143bSAndrey Ignatov __u32 kern_version; 69f0307a7eSDavid Beckett __u32 prog_ifindex; 70d7be143bSAndrey Ignatov }; 71d7be143bSAndrey Ignatov 72*c034a177SJohn Fastabend /* Flags to direct loading requirements */ 73*c034a177SJohn Fastabend #define MAPS_RELAX_COMPAT 0x01 74*c034a177SJohn Fastabend 757bf98369SWang Nan /* Recommend log buffer size */ 7648cca7e4SAlexei Starovoitov #define BPF_LOG_BUF_SIZE (256 * 1024) 77d7be143bSAndrey Ignatov int bpf_load_program_xattr(const struct bpf_load_program_attr *load_attr, 78d7be143bSAndrey Ignatov char *log_buf, size_t log_buf_sz); 792ee89fb9SMickaël Salaün int bpf_load_program(enum bpf_prog_type type, const struct bpf_insn *insns, 802ee89fb9SMickaël Salaün size_t insns_cnt, const char *license, 8183d994d0SJoe Stringer __u32 kern_version, char *log_buf, 827bf98369SWang Nan size_t log_buf_sz); 8391045f5eSDavid S. Miller int bpf_verify_program(enum bpf_prog_type type, const struct bpf_insn *insns, 8491045f5eSDavid S. Miller size_t insns_cnt, int strict_alignment, 8591045f5eSDavid S. Miller const char *license, __u32 kern_version, 86d6554904SDaniel Borkmann char *log_buf, size_t log_buf_sz, int log_level); 877bf98369SWang Nan 8810ecc728SMickaël Salaün int bpf_map_update_elem(int fd, const void *key, const void *value, 8983d994d0SJoe Stringer __u64 flags); 909742da01SWang Nan 91e5ff7c40SMickaël Salaün int bpf_map_lookup_elem(int fd, const void *key, void *value); 92e58383b8SMickaël Salaün int bpf_map_delete_elem(int fd, const void *key); 935f155c25SMickaël Salaün int bpf_map_get_next_key(int fd, const void *key, void *next_key); 949742da01SWang Nan int bpf_obj_pin(int fd, const char *pathname); 959742da01SWang Nan int bpf_obj_get(const char *pathname); 967f677633SAlexei Starovoitov int bpf_prog_attach(int prog_fd, int attachable_fd, enum bpf_attach_type type, 977f677633SAlexei Starovoitov unsigned int flags); 985dc880deSJoe Stringer int bpf_prog_detach(int attachable_fd, enum bpf_attach_type type); 99244d20efSAlexei Starovoitov int bpf_prog_detach2(int prog_fd, int attachable_fd, enum bpf_attach_type type); 10030848873SAlexei Starovoitov int bpf_prog_test_run(int prog_fd, int repeat, void *data, __u32 size, 10130848873SAlexei Starovoitov void *data_out, __u32 *size_out, __u32 *retval, 10230848873SAlexei Starovoitov __u32 *duration); 10395b9afd3SMartin KaFai Lau int bpf_prog_get_next_id(__u32 start_id, __u32 *next_id); 10495b9afd3SMartin KaFai Lau int bpf_map_get_next_id(__u32 start_id, __u32 *next_id); 10595b9afd3SMartin KaFai Lau int bpf_prog_get_fd_by_id(__u32 id); 10695b9afd3SMartin KaFai Lau int bpf_map_get_fd_by_id(__u32 id); 107cd8b8928SMartin KaFai Lau int bpf_btf_get_fd_by_id(__u32 id); 10895b9afd3SMartin KaFai Lau int bpf_obj_get_info_by_fd(int prog_fd, void *info, __u32 *info_len); 1095d0cbf9bSAlexei Starovoitov int bpf_prog_query(int target_fd, enum bpf_attach_type type, __u32 query_flags, 1105d0cbf9bSAlexei Starovoitov __u32 *attach_flags, __u32 *prog_ids, __u32 *prog_cnt); 111a0fe3e57SAlexei Starovoitov int bpf_raw_tracepoint_open(const char *name, int prog_fd); 1128a138aedSMartin KaFai Lau int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, __u32 log_buf_size, 1138a138aedSMartin KaFai Lau bool do_log); 11430687ad9SYonghong Song int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len, 11530687ad9SYonghong Song __u32 *prog_id, __u32 *fd_type, __u64 *probe_offset, 11630687ad9SYonghong Song __u64 *probe_addr); 117eff81908SAndrey Ignatov #endif /* __LIBBPF_BPF_H */ 118