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v6.13
src/bpf_attr.h
496 строк
13 KB
Dmitry V. Levin
bpf: update decoding of BPF_RAW_TRACEPOINT_OPEN command
25 июн 2024, 11:00
25 июн 2024, 11:00
5375048
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/* * Copyright (c) 2015-2018 Dmitry V. Levin <ldv@strace.io> * Copyright (c) 2018-2024 The strace developers. * All rights reserved. * * SPDX-License-Identifier: LGPL-2.1-or-later */ #ifndef STRACE_BPF_ATTR_H # define STRACE_BPF_ATTR_H /* * The policy is that all fields of type uint64_t in this header file * must have ATTRIBUTE_ALIGNED(8). * * This should not cause any contradictions with <linux/bpf.h> * unless the latter is buggy. * * By word "buggy" I mean containing such changes as Linux kernel commit * v4.16-rc1~123^2~109^2~5^2~4. */ # ifndef BPF_OBJ_NAME_LEN # define BPF_OBJ_NAME_LEN 16U # else # if BPF_OBJ_NAME_LEN != 16U # error "Unexpected value of BPF_OBJ_NAME_LEN" # endif # endif # ifndef BPF_TAG_SIZE # define BPF_TAG_SIZE 8 # else # if BPF_TAG_SIZE != 8 # error "Unexpected value of BPF_TAG_SIZE" # endif # endif struct BPF_MAP_CREATE_struct { uint32_t map_type; uint32_t key_size; uint32_t value_size; uint32_t max_entries; uint32_t map_flags; uint32_t inner_map_fd; uint32_t numa_node; char map_name[BPF_OBJ_NAME_LEN]; uint32_t map_ifindex; uint32_t btf_fd; uint32_t btf_key_type_id; uint32_t btf_value_type_id; uint32_t btf_vmlinux_value_type_id; uint64_t ATTRIBUTE_ALIGNED(8) map_extra; }; # define BPF_MAP_CREATE_struct_size \ sizeof(struct BPF_MAP_CREATE_struct) # define expected_BPF_MAP_CREATE_struct_size 72 struct BPF_MAP_LOOKUP_ELEM_struct { uint32_t map_fd; uint64_t ATTRIBUTE_ALIGNED(8) key; uint64_t ATTRIBUTE_ALIGNED(8) value; uint64_t ATTRIBUTE_ALIGNED(8) flags; }; # define BPF_MAP_LOOKUP_ELEM_struct_size \ sizeof(struct BPF_MAP_LOOKUP_ELEM_struct) # define expected_BPF_MAP_LOOKUP_ELEM_struct_size 32 struct BPF_MAP_UPDATE_ELEM_struct { uint32_t map_fd; uint64_t ATTRIBUTE_ALIGNED(8) key; uint64_t ATTRIBUTE_ALIGNED(8) value; uint64_t ATTRIBUTE_ALIGNED(8) flags; }; # define BPF_MAP_UPDATE_ELEM_struct_size \ sizeof(struct BPF_MAP_UPDATE_ELEM_struct) # define expected_BPF_MAP_UPDATE_ELEM_struct_size 32 struct BPF_MAP_DELETE_ELEM_struct { uint32_t map_fd; uint64_t ATTRIBUTE_ALIGNED(8) key; }; # define BPF_MAP_DELETE_ELEM_struct_size \ sizeof(struct BPF_MAP_DELETE_ELEM_struct) # define expected_BPF_MAP_DELETE_ELEM_struct_size 16 struct BPF_MAP_GET_NEXT_KEY_struct { uint32_t map_fd; uint64_t ATTRIBUTE_ALIGNED(8) key; uint64_t ATTRIBUTE_ALIGNED(8) next_key; }; # define BPF_MAP_GET_NEXT_KEY_struct_size \ sizeof(struct BPF_MAP_GET_NEXT_KEY_struct) # define expected_BPF_MAP_GET_NEXT_KEY_struct_size 24 struct BPF_MAP_FREEZE_struct { uint32_t map_fd; }; # define BPF_MAP_FREEZE_struct_size \ sizeof(struct BPF_MAP_FREEZE_struct) # define expected_BPF_MAP_FREEZE_struct_size 4 struct BPF_PROG_LOAD_struct { uint32_t prog_type; uint32_t insn_cnt; uint64_t ATTRIBUTE_ALIGNED(8) insns; uint64_t ATTRIBUTE_ALIGNED(8) license; uint32_t log_level; uint32_t log_size; uint64_t ATTRIBUTE_ALIGNED(8) log_buf; uint32_t kern_version; uint32_t prog_flags; char prog_name[BPF_OBJ_NAME_LEN]; uint32_t prog_ifindex; uint32_t expected_attach_type; uint32_t prog_btf_fd; uint32_t func_info_rec_size; uint64_t ATTRIBUTE_ALIGNED(8) func_info; uint32_t func_info_cnt; uint32_t line_info_rec_size; uint64_t ATTRIBUTE_ALIGNED(8) line_info; uint32_t line_info_cnt; uint32_t attach_btf_id; uint32_t attach_prog_fd; uint32_t pad; uint64_t ATTRIBUTE_ALIGNED(8) fd_array; }; # define BPF_PROG_LOAD_struct_size \ sizeof(struct BPF_PROG_LOAD_struct) # define expected_BPF_PROG_LOAD_struct_size 128 struct BPF_OBJ_PIN_struct { uint64_t ATTRIBUTE_ALIGNED(8) pathname; uint32_t bpf_fd; uint32_t file_flags; uint32_t path_fd; }; # define BPF_OBJ_PIN_struct_size \ offsetofend(struct BPF_OBJ_PIN_struct, path_fd) # define expected_BPF_OBJ_PIN_struct_size 20 # define BPF_OBJ_GET_struct BPF_OBJ_PIN_struct # define BPF_OBJ_GET_struct_size BPF_OBJ_PIN_struct_size struct BPF_PROG_ATTACH_struct { uint32_t target_fd; uint32_t attach_bpf_fd; uint32_t attach_type; uint32_t attach_flags; uint32_t replace_bpf_fd; }; # define BPF_PROG_ATTACH_struct_size \ sizeof(struct BPF_PROG_ATTACH_struct) # define expected_BPF_PROG_ATTACH_struct_size 20 struct BPF_PROG_DETACH_struct { uint32_t target_fd; uint32_t dummy; uint32_t attach_type; }; # define BPF_PROG_DETACH_struct_size \ sizeof(struct BPF_PROG_DETACH_struct) # define expected_BPF_PROG_DETACH_struct_size 12 struct BPF_PROG_TEST_RUN_struct /* test */ { uint32_t prog_fd; uint32_t retval; uint32_t data_size_in; uint32_t data_size_out; uint64_t ATTRIBUTE_ALIGNED(8) data_in; uint64_t ATTRIBUTE_ALIGNED(8) data_out; uint32_t repeat; uint32_t duration; uint32_t ctx_size_in; uint32_t ctx_size_out; uint64_t ATTRIBUTE_ALIGNED(8) ctx_in; uint64_t ATTRIBUTE_ALIGNED(8) ctx_out; uint32_t flags; uint32_t cpu; uint32_t batch_size; }; # define BPF_PROG_TEST_RUN_struct_size \ offsetofend(struct BPF_PROG_TEST_RUN_struct, batch_size) /* sizeof(struct BPF_PROG_TEST_RUN_struct) */ # define expected_BPF_PROG_TEST_RUN_struct_size 76 struct BPF_PROG_GET_NEXT_ID_struct { uint32_t start_id; uint32_t next_id; uint32_t open_flags; }; # define BPF_PROG_GET_NEXT_ID_struct_size \ sizeof(struct BPF_PROG_GET_NEXT_ID_struct) # define expected_BPF_PROG_GET_NEXT_ID_struct_size 12 # define BPF_MAP_GET_NEXT_ID_struct BPF_PROG_GET_NEXT_ID_struct # define BPF_MAP_GET_NEXT_ID_struct_size BPF_PROG_GET_NEXT_ID_struct_size # define BPF_BTF_GET_NEXT_ID_struct BPF_PROG_GET_NEXT_ID_struct # define BPF_BTF_GET_NEXT_ID_struct_size BPF_PROG_GET_NEXT_ID_struct_size struct BPF_PROG_GET_FD_BY_ID_struct { uint32_t prog_id; uint32_t next_id; uint32_t open_flags; }; # define BPF_PROG_GET_FD_BY_ID_struct_size \ sizeof(struct BPF_PROG_GET_FD_BY_ID_struct) # define expected_BPF_PROG_GET_FD_BY_ID_struct_size 12 struct BPF_MAP_GET_FD_BY_ID_struct { uint32_t map_id; uint32_t next_id; uint32_t open_flags; }; # define BPF_MAP_GET_FD_BY_ID_struct_size \ sizeof(struct BPF_MAP_GET_FD_BY_ID_struct) # define expected_BPF_MAP_GET_FD_BY_ID_struct_size 12 struct BPF_OBJ_GET_INFO_BY_FD_struct /* info */ { uint32_t bpf_fd; uint32_t info_len; uint64_t ATTRIBUTE_ALIGNED(8) info; }; # define BPF_OBJ_GET_INFO_BY_FD_struct_size \ sizeof(struct BPF_OBJ_GET_INFO_BY_FD_struct) # define expected_BPF_OBJ_GET_INFO_BY_FD_struct_size 16 struct BPF_PROG_QUERY_struct /* query */ { uint32_t target_fd; uint32_t attach_type; uint32_t query_flags; uint32_t attach_flags; uint64_t ATTRIBUTE_ALIGNED(8) prog_ids; uint32_t prog_cnt; }; # define BPF_PROG_QUERY_struct_size \ offsetofend(struct BPF_PROG_QUERY_struct, prog_cnt) # define expected_BPF_PROG_QUERY_struct_size 28 struct BPF_RAW_TRACEPOINT_OPEN_struct /* raw_tracepoint */ { uint64_t ATTRIBUTE_ALIGNED(8) name; uint32_t prog_fd; uint32_t dummy; uint64_t ATTRIBUTE_ALIGNED(8) cookie; }; # define BPF_RAW_TRACEPOINT_OPEN_struct_size \ sizeof(struct BPF_RAW_TRACEPOINT_OPEN_struct) # define expected_BPF_RAW_TRACEPOINT_OPEN_struct_size 24 struct BPF_BTF_LOAD_struct { uint64_t ATTRIBUTE_ALIGNED(8) btf; uint64_t ATTRIBUTE_ALIGNED(8) btf_log_buf; uint32_t btf_size; uint32_t btf_log_size; uint32_t btf_log_level; }; # define BPF_BTF_LOAD_struct_size \ offsetofend(struct BPF_BTF_LOAD_struct, btf_log_level) # define expected_BPF_BTF_LOAD_struct_size 28 struct BPF_BTF_GET_FD_BY_ID_struct { uint32_t btf_id; }; # define BPF_BTF_GET_FD_BY_ID_struct_size \ sizeof(struct BPF_BTF_GET_FD_BY_ID_struct) # define expected_BPF_BTF_GET_FD_BY_ID_struct_size 4 struct BPF_TASK_FD_QUERY_struct /* task_fd_query */ { uint32_t pid; uint32_t fd; uint32_t flags; uint32_t buf_len; uint64_t ATTRIBUTE_ALIGNED(8) buf; uint32_t prog_id; uint32_t fd_type; uint64_t ATTRIBUTE_ALIGNED(8) probe_offset; uint64_t ATTRIBUTE_ALIGNED(8) probe_addr; }; # define BPF_TASK_FD_QUERY_struct_size \ sizeof(struct BPF_TASK_FD_QUERY_struct) # define expected_BPF_TASK_FD_QUERY_struct_size 48 struct bpf_map_info_struct { uint32_t type; uint32_t id; uint32_t key_size; uint32_t value_size; uint32_t max_entries; uint32_t map_flags; char name[BPF_OBJ_NAME_LEN]; uint32_t ifindex; uint32_t btf_vmlinux_value_type_id; /* * The kernel UAPI is broken by Linux commit * v4.16-rc1~123^2~109^2~5^2~4 . */ uint64_t ATTRIBUTE_ALIGNED(8) netns_dev; /* skip check */ uint64_t ATTRIBUTE_ALIGNED(8) netns_ino; /* skip check */ uint32_t btf_id; uint32_t btf_key_type_id; uint32_t btf_value_type_id; uint32_t pad; uint64_t ATTRIBUTE_ALIGNED(8) map_extra; }; # define bpf_map_info_struct_size \ sizeof(struct bpf_map_info_struct) # define expected_bpf_map_info_struct_size 88 struct bpf_prog_info_struct { uint32_t type; uint32_t id; uint8_t tag[BPF_TAG_SIZE]; uint32_t jited_prog_len; uint32_t xlated_prog_len; uint64_t ATTRIBUTE_ALIGNED(8) jited_prog_insns; uint64_t ATTRIBUTE_ALIGNED(8) xlated_prog_insns; uint64_t ATTRIBUTE_ALIGNED(8) load_time; uint32_t created_by_uid; uint32_t nr_map_ids; uint64_t ATTRIBUTE_ALIGNED(8) map_ids; char name[BPF_OBJ_NAME_LEN]; uint32_t ifindex; uint32_t gpl_compatible:1; /* * The kernel UAPI is broken by Linux commit * v4.16-rc1~123^2~227^2~5^2~2 . */ uint64_t ATTRIBUTE_ALIGNED(8) netns_dev; /* skip check */ uint64_t ATTRIBUTE_ALIGNED(8) netns_ino; /* skip check */ uint32_t nr_jited_ksyms; uint32_t nr_jited_func_lens; uint64_t ATTRIBUTE_ALIGNED(8) jited_ksyms; uint64_t ATTRIBUTE_ALIGNED(8) jited_func_lens; uint32_t btf_id; uint32_t func_info_rec_size; uint64_t ATTRIBUTE_ALIGNED(8) func_info; uint32_t nr_func_info; uint32_t nr_line_info; uint64_t ATTRIBUTE_ALIGNED(8) line_info; uint64_t ATTRIBUTE_ALIGNED(8) jited_line_info; uint32_t nr_jited_line_info; uint32_t line_info_rec_size; uint32_t jited_line_info_rec_size; uint32_t nr_prog_tags; uint64_t ATTRIBUTE_ALIGNED(8) prog_tags; uint64_t ATTRIBUTE_ALIGNED(8) run_time_ns; uint64_t ATTRIBUTE_ALIGNED(8) run_cnt; uint64_t ATTRIBUTE_ALIGNED(8) recursion_misses; uint32_t verified_insns; }; # define bpf_prog_info_struct_size \ offsetofend(struct bpf_prog_info_struct, verified_insns) # define expected_bpf_prog_info_struct_size 220 struct BPF_MAP_LOOKUP_BATCH_struct /* batch */ { uint64_t ATTRIBUTE_ALIGNED(8) in_batch; uint64_t ATTRIBUTE_ALIGNED(8) out_batch; uint64_t ATTRIBUTE_ALIGNED(8) keys; uint64_t ATTRIBUTE_ALIGNED(8) values; uint32_t count; uint32_t map_fd; uint64_t ATTRIBUTE_ALIGNED(8) elem_flags; uint64_t ATTRIBUTE_ALIGNED(8) flags; }; # define BPF_MAP_LOOKUP_BATCH_struct_size \ sizeof(struct BPF_MAP_LOOKUP_BATCH_struct) # define expected_BPF_MAP_LOOKUP_BATCH_struct_size 56 # define BPF_MAP_LOOKUP_AND_DELETE_BATCH_struct BPF_MAP_LOOKUP_BATCH_struct # define BPF_MAP_LOOKUP_AND_DELETE_BATCH_struct_size BPF_MAP_LOOKUP_BATCH_struct_size # define BPF_MAP_UPDATE_BATCH_struct BPF_MAP_LOOKUP_BATCH_struct # define BPF_MAP_UPDATE_BATCH_struct_size BPF_MAP_LOOKUP_BATCH_struct_size # define BPF_MAP_DELETE_BATCH_struct BPF_MAP_LOOKUP_BATCH_struct # define BPF_MAP_DELETE_BATCH_struct_size BPF_MAP_LOOKUP_BATCH_struct_size struct BPF_LINK_CREATE_struct /* link_create */ { uint32_t prog_fd; uint32_t target_fd; uint32_t attach_type; uint32_t flags; union { uint32_t target_btf_id; struct { uint64_t ATTRIBUTE_ALIGNED(8) iter_info; uint32_t iter_info_len; }; struct { uint64_t ATTRIBUTE_ALIGNED(8) bpf_cookie; } perf_event; struct { uint32_t flags; uint32_t cnt; uint64_t ATTRIBUTE_ALIGNED(8) syms; uint64_t ATTRIBUTE_ALIGNED(8) addrs; uint64_t ATTRIBUTE_ALIGNED(8) cookies; } kprobe_multi; }; }; # define BPF_LINK_CREATE_struct_size \ sizeof(struct BPF_LINK_CREATE_struct) # define expected_BPF_LINK_CREATE_struct_size 48 struct BPF_LINK_UPDATE_struct /* link_update */ { uint32_t link_fd; uint32_t new_prog_fd; uint32_t flags; uint32_t old_prog_fd; }; # define BPF_LINK_UPDATE_struct_size \ sizeof(struct BPF_LINK_UPDATE_struct) # define expected_BPF_LINK_UPDATE_struct_size 16 struct BPF_LINK_GET_FD_BY_ID_struct { uint32_t link_id; }; # define BPF_LINK_GET_FD_BY_ID_struct_size \ sizeof(struct BPF_LINK_GET_FD_BY_ID_struct) # define expected_BPF_LINK_GET_FD_BY_ID_struct_size 4 struct BPF_ENABLE_STATS_struct /* enable_stats */ { uint32_t type; }; # define BPF_ENABLE_STATS_struct_size \ sizeof(struct BPF_ENABLE_STATS_struct) # define expected_BPF_ENABLE_STATS_struct_size 4 struct BPF_ITER_CREATE_struct /* iter_create */ { uint32_t link_fd; uint32_t flags; }; # define BPF_ITER_CREATE_struct_size \ sizeof(struct BPF_ITER_CREATE_struct) # define expected_BPF_ITER_CREATE_struct_size 8 struct BPF_LINK_DETACH_struct /* link_detach */ { uint32_t link_fd; }; # define BPF_LINK_DETACH_struct_size \ sizeof(struct BPF_LINK_DETACH_struct) # define expected_BPF_LINK_DETACH_struct_size 4 struct BPF_PROG_BIND_MAP_struct /* prog_bind_map */ { uint32_t prog_fd; uint32_t map_fd; uint32_t flags; }; # define BPF_PROG_BIND_MAP_struct_size \ sizeof(struct BPF_PROG_BIND_MAP_struct) # define expected_BPF_PROG_BIND_MAP_struct_size 12 struct BPF_TOKEN_CREATE_struct /* token_create */ { uint32_t flags; uint32_t bpffs_fd; }; # define BPF_TOKEN_CREATE_struct_size \ sizeof(struct BPF_TOKEN_CREATE_struct) # define expected_BPF_TOKEN_CREATE_struct_size 8 #endif /* !STRACE_BPF_ATTR_H */