granicus.if.org Git - strace/blob - bpf_attr.h

   1 /*
   2  * Copyright (c) 2015-2018 Dmitry V. Levin <ldv@altlinux.org>
   3  * Copyright (c) 2018-2019 The strace developers.
   4  * All rights reserved.
   5  *
   6  * SPDX-License-Identifier: LGPL-2.1-or-later
   7  */
   8
   9 #ifndef STRACE_BPF_ATTR_H
  10 # define STRACE_BPF_ATTR_H
  11
  12 /*
  13  * The policy is that all fields of type uint64_t in this header file
  14  * must have ATTRIBUTE_ALIGNED(8).
  15  *
  16  * This should not cause any contradictions with <linux/bpf.h>
  17  * unless the latter is buggy.
  18  *
  19  * By word "buggy" I mean containing such changes as Linux kernel commit
  20  * v4.16-rc1~123^2~109^2~5^2~4.
  21  */
  22
  23 # ifndef BPF_OBJ_NAME_LEN
  24 #  define BPF_OBJ_NAME_LEN 16U
  25 # else
  26 #  if BPF_OBJ_NAME_LEN != 16U
  27 #   error "Unexpected value of BPF_OBJ_NAME_LEN"
  28 #  endif
  29 # endif
  30
  31 # ifndef BPF_TAG_SIZE
  32 #  define BPF_TAG_SIZE 8
  33 # else
  34 #  if BPF_TAG_SIZE != 8
  35 #   error "Unexpected value of BPF_TAG_SIZE"
  36 #  endif
  37 # endif
  38
  39 struct BPF_MAP_CREATE_struct {
  40         uint32_t map_type;
  41         uint32_t key_size;
  42         uint32_t value_size;
  43         uint32_t max_entries;
  44         uint32_t map_flags;
  45         uint32_t inner_map_fd;
  46         uint32_t numa_node;
  47         char     map_name[BPF_OBJ_NAME_LEN];
  48         uint32_t map_ifindex;
  49         uint32_t btf_fd;
  50         uint32_t btf_key_type_id;
  51         uint32_t btf_value_type_id;
  52 };
  53
  54 # define BPF_MAP_CREATE_struct_size \
  55         sizeof(struct BPF_MAP_CREATE_struct)
  56 # define expected_BPF_MAP_CREATE_struct_size 60
  57
  58 struct BPF_MAP_LOOKUP_ELEM_struct {
  59         uint32_t map_fd;
  60         uint64_t ATTRIBUTE_ALIGNED(8) key;
  61         uint64_t ATTRIBUTE_ALIGNED(8) value;
  62 };
  63
  64 # define BPF_MAP_LOOKUP_ELEM_struct_size \
  65         sizeof(struct BPF_MAP_LOOKUP_ELEM_struct)
  66 # define expected_BPF_MAP_LOOKUP_ELEM_struct_size 24
  67
  68 struct BPF_MAP_UPDATE_ELEM_struct {
  69         uint32_t map_fd;
  70         uint64_t ATTRIBUTE_ALIGNED(8) key;
  71         uint64_t ATTRIBUTE_ALIGNED(8) value;
  72         uint64_t ATTRIBUTE_ALIGNED(8) flags;
  73 };
  74
  75 # define BPF_MAP_UPDATE_ELEM_struct_size \
  76         sizeof(struct BPF_MAP_UPDATE_ELEM_struct)
  77 # define expected_BPF_MAP_UPDATE_ELEM_struct_size 32
  78
  79 struct BPF_MAP_DELETE_ELEM_struct {
  80         uint32_t map_fd;
  81         uint64_t ATTRIBUTE_ALIGNED(8) key;
  82 };
  83
  84 # define BPF_MAP_DELETE_ELEM_struct_size \
  85         sizeof(struct BPF_MAP_DELETE_ELEM_struct)
  86 # define expected_BPF_MAP_DELETE_ELEM_struct_size 16
  87
  88 struct BPF_MAP_GET_NEXT_KEY_struct {
  89         uint32_t map_fd;
  90         uint64_t ATTRIBUTE_ALIGNED(8) key;
  91         uint64_t ATTRIBUTE_ALIGNED(8) next_key;
  92 };
  93
  94 # define BPF_MAP_GET_NEXT_KEY_struct_size \
  95         sizeof(struct BPF_MAP_GET_NEXT_KEY_struct)
  96 # define expected_BPF_MAP_GET_NEXT_KEY_struct_size 24
  97
  98 struct BPF_MAP_FREEZE_struct {
  99         uint32_t map_fd;
 100 };
 101
 102 # define BPF_MAP_FREEZE_struct_size \
 103         sizeof(struct BPF_MAP_FREEZE_struct)
 104 # define expected_BPF_MAP_FREEZE_struct_size 4
 105
 106 struct BPF_PROG_LOAD_struct {
 107         uint32_t prog_type;
 108         uint32_t insn_cnt;
 109         uint64_t ATTRIBUTE_ALIGNED(8) insns;
 110         uint64_t ATTRIBUTE_ALIGNED(8) license;
 111         uint32_t log_level;
 112         uint32_t log_size;
 113         uint64_t ATTRIBUTE_ALIGNED(8) log_buf;
 114         uint32_t kern_version;
 115         uint32_t prog_flags;
 116         char     prog_name[BPF_OBJ_NAME_LEN];
 117         uint32_t prog_ifindex;
 118         uint32_t expected_attach_type;
 119         uint32_t prog_btf_fd;
 120         uint32_t func_info_rec_size;
 121         uint64_t ATTRIBUTE_ALIGNED(8) func_info;
 122         uint32_t func_info_cnt;
 123         uint32_t line_info_rec_size;
 124         uint64_t ATTRIBUTE_ALIGNED(8) line_info;
 125         uint32_t line_info_cnt;
 126 };
 127
 128 # define BPF_PROG_LOAD_struct_size \
 129         offsetofend(struct BPF_PROG_LOAD_struct, line_info_cnt)
 130 # define expected_BPF_PROG_LOAD_struct_size 108
 131
 132 struct BPF_OBJ_PIN_struct {
 133         uint64_t ATTRIBUTE_ALIGNED(8) pathname;
 134         uint32_t bpf_fd;
 135         uint32_t file_flags;
 136 };
 137
 138 # define BPF_OBJ_PIN_struct_size \
 139         sizeof(struct BPF_OBJ_PIN_struct)
 140 # define expected_BPF_OBJ_PIN_struct_size 16
 141
 142 # define BPF_OBJ_GET_struct BPF_OBJ_PIN_struct
 143 # define BPF_OBJ_GET_struct_size BPF_OBJ_PIN_struct_size
 144
 145 struct BPF_PROG_ATTACH_struct {
 146         uint32_t target_fd;
 147         uint32_t attach_bpf_fd;
 148         uint32_t attach_type;
 149         uint32_t attach_flags;
 150 };
 151
 152 # define BPF_PROG_ATTACH_struct_size \
 153         sizeof(struct BPF_PROG_ATTACH_struct)
 154 # define expected_BPF_PROG_ATTACH_struct_size 16
 155
 156 struct BPF_PROG_DETACH_struct {
 157         uint32_t target_fd;
 158         uint32_t dummy;
 159         uint32_t attach_type;
 160 };
 161
 162 # define BPF_PROG_DETACH_struct_size \
 163         sizeof(struct BPF_PROG_DETACH_struct)
 164 # define expected_BPF_PROG_DETACH_struct_size 12
 165
 166 struct BPF_PROG_TEST_RUN_struct /* test */ {
 167         uint32_t prog_fd;
 168         uint32_t retval;
 169         uint32_t data_size_in;
 170         uint32_t data_size_out;
 171         uint64_t ATTRIBUTE_ALIGNED(8) data_in;
 172         uint64_t ATTRIBUTE_ALIGNED(8) data_out;
 173         uint32_t repeat;
 174         uint32_t duration;
 175         uint32_t ctx_size_in;
 176         uint32_t ctx_size_out;
 177         uint64_t ATTRIBUTE_ALIGNED(8) ctx_in;
 178         uint64_t ATTRIBUTE_ALIGNED(8) ctx_out;
 179 };
 180
 181 # define BPF_PROG_TEST_RUN_struct_size \
 182         sizeof(struct BPF_PROG_TEST_RUN_struct)
 183 # define expected_BPF_PROG_TEST_RUN_struct_size 64
 184
 185 struct BPF_PROG_GET_NEXT_ID_struct {
 186         uint32_t start_id;
 187         uint32_t next_id;
 188         uint32_t open_flags;
 189 };
 190
 191 # define BPF_PROG_GET_NEXT_ID_struct_size \
 192         sizeof(struct BPF_PROG_GET_NEXT_ID_struct)
 193 # define expected_BPF_PROG_GET_NEXT_ID_struct_size 12
 194
 195 # define BPF_MAP_GET_NEXT_ID_struct BPF_PROG_GET_NEXT_ID_struct
 196 # define BPF_MAP_GET_NEXT_ID_struct_size BPF_PROG_GET_NEXT_ID_struct_size
 197
 198 struct BPF_PROG_GET_FD_BY_ID_struct {
 199         uint32_t prog_id;
 200         uint32_t next_id;
 201         uint32_t open_flags;
 202 };
 203
 204 # define BPF_PROG_GET_FD_BY_ID_struct_size \
 205         sizeof(struct BPF_PROG_GET_FD_BY_ID_struct)
 206 # define expected_BPF_PROG_GET_FD_BY_ID_struct_size 12
 207
 208 struct BPF_MAP_GET_FD_BY_ID_struct {
 209         uint32_t map_id;
 210         uint32_t next_id;
 211         uint32_t open_flags;
 212 };
 213
 214 # define BPF_MAP_GET_FD_BY_ID_struct_size \
 215         sizeof(struct BPF_MAP_GET_FD_BY_ID_struct)
 216 # define expected_BPF_MAP_GET_FD_BY_ID_struct_size 12
 217
 218 struct BPF_OBJ_GET_INFO_BY_FD_struct /* info */ {
 219         uint32_t bpf_fd;
 220         uint32_t info_len;
 221         uint64_t ATTRIBUTE_ALIGNED(8) info;
 222 };
 223
 224 # define BPF_OBJ_GET_INFO_BY_FD_struct_size \
 225         sizeof(struct BPF_OBJ_GET_INFO_BY_FD_struct)
 226 # define expected_BPF_OBJ_GET_INFO_BY_FD_struct_size 16
 227
 228 struct BPF_PROG_QUERY_struct /* query */ {
 229         uint32_t target_fd;
 230         uint32_t attach_type;
 231         uint32_t query_flags;
 232         uint32_t attach_flags;
 233         uint64_t ATTRIBUTE_ALIGNED(8) prog_ids;
 234         uint32_t prog_cnt;
 235 };
 236
 237 # define BPF_PROG_QUERY_struct_size \
 238         offsetofend(struct BPF_PROG_QUERY_struct, prog_cnt)
 239 # define expected_BPF_PROG_QUERY_struct_size 28
 240
 241 struct BPF_RAW_TRACEPOINT_OPEN_struct /* raw_tracepoint */ {
 242         uint64_t ATTRIBUTE_ALIGNED(8) name;
 243         uint32_t prog_fd;
 244 };
 245
 246 # define BPF_RAW_TRACEPOINT_OPEN_struct_size \
 247         offsetofend(struct BPF_RAW_TRACEPOINT_OPEN_struct, prog_fd)
 248 # define expected_BPF_RAW_TRACEPOINT_OPEN_struct_size 12
 249
 250 struct BPF_BTF_LOAD_struct {
 251         uint64_t ATTRIBUTE_ALIGNED(8) btf;
 252         uint64_t ATTRIBUTE_ALIGNED(8) btf_log_buf;
 253         uint32_t btf_size;
 254         uint32_t btf_log_size;
 255         uint32_t btf_log_level;
 256 };
 257
 258 # define BPF_BTF_LOAD_struct_size \
 259         offsetofend(struct BPF_BTF_LOAD_struct, btf_log_level)
 260 # define expected_BPF_BTF_LOAD_struct_size 28
 261
 262 struct BPF_BTF_GET_FD_BY_ID_struct {
 263         uint32_t btf_id;
 264 };
 265
 266 # define BPF_BTF_GET_FD_BY_ID_struct_size \
 267         sizeof(struct BPF_BTF_GET_FD_BY_ID_struct)
 268 # define expected_BPF_BTF_GET_FD_BY_ID_struct_size 4
 269
 270 struct BPF_TASK_FD_QUERY_struct /* task_fd_query */ {
 271         uint32_t pid;
 272         uint32_t fd;
 273         uint32_t flags;
 274         uint32_t buf_len;
 275         uint64_t ATTRIBUTE_ALIGNED(8) buf;
 276         uint32_t prog_id;
 277         uint32_t fd_type;
 278         uint64_t ATTRIBUTE_ALIGNED(8) probe_offset;
 279         uint64_t ATTRIBUTE_ALIGNED(8) probe_addr;
 280 };
 281
 282 # define BPF_TASK_FD_QUERY_struct_size \
 283         sizeof(struct BPF_TASK_FD_QUERY_struct)
 284 # define expected_BPF_TASK_FD_QUERY_struct_size 48
 285
 286 struct bpf_map_info_struct {
 287         uint32_t type;
 288         uint32_t id;
 289         uint32_t key_size;
 290         uint32_t value_size;
 291         uint32_t max_entries;
 292         uint32_t map_flags;
 293         char     name[BPF_OBJ_NAME_LEN];
 294         uint32_t ifindex;
 295         /*
 296          * The kernel UAPI is broken by Linux commit
 297          * v4.16-rc1~123^2~109^2~5^2~4 .
 298          */
 299         uint64_t ATTRIBUTE_ALIGNED(8) netns_dev; /* skip check */
 300         uint64_t ATTRIBUTE_ALIGNED(8) netns_ino; /* skip check */
 301         uint32_t btf_id;
 302         uint32_t btf_key_type_id;
 303         uint32_t btf_value_type_id;
 304 };
 305
 306 # define bpf_map_info_struct_size \
 307         offsetofend(struct bpf_map_info_struct, btf_value_type_id)
 308 # define expected_bpf_map_info_struct_size 76
 309
 310 struct bpf_prog_info_struct {
 311         uint32_t type;
 312         uint32_t id;
 313         uint8_t  tag[BPF_TAG_SIZE];
 314         uint32_t jited_prog_len;
 315         uint32_t xlated_prog_len;
 316         uint64_t ATTRIBUTE_ALIGNED(8) jited_prog_insns;
 317         uint64_t ATTRIBUTE_ALIGNED(8) xlated_prog_insns;
 318         uint64_t ATTRIBUTE_ALIGNED(8) load_time;
 319         uint32_t created_by_uid;
 320         uint32_t nr_map_ids;
 321         uint64_t ATTRIBUTE_ALIGNED(8) map_ids;
 322         char     name[BPF_OBJ_NAME_LEN];
 323         uint32_t ifindex;
 324         uint32_t gpl_compatible:1;
 325         /*
 326          * The kernel UAPI is broken by Linux commit
 327          * v4.16-rc1~123^2~227^2~5^2~2 .
 328          */
 329         uint64_t ATTRIBUTE_ALIGNED(8) netns_dev; /* skip check */
 330         uint64_t ATTRIBUTE_ALIGNED(8) netns_ino; /* skip check */
 331         uint32_t nr_jited_ksyms;
 332         uint32_t nr_jited_func_lens;
 333         uint64_t ATTRIBUTE_ALIGNED(8) jited_ksyms;
 334         uint64_t ATTRIBUTE_ALIGNED(8) jited_func_lens;
 335         uint32_t btf_id;
 336         uint32_t func_info_rec_size;
 337         uint64_t ATTRIBUTE_ALIGNED(8) func_info;
 338         uint32_t nr_func_info;
 339         uint32_t nr_line_info;
 340         uint64_t ATTRIBUTE_ALIGNED(8) line_info;
 341         uint64_t ATTRIBUTE_ALIGNED(8) jited_line_info;
 342         uint32_t nr_jited_line_info;
 343         uint32_t line_info_rec_size;
 344         uint32_t jited_line_info_rec_size;
 345         uint32_t nr_prog_tags;
 346         uint64_t ATTRIBUTE_ALIGNED(8) prog_tags;
 347         uint64_t ATTRIBUTE_ALIGNED(8) run_time_ns;
 348         uint64_t ATTRIBUTE_ALIGNED(8) run_cnt;
 349 };
 350
 351 # define bpf_prog_info_struct_size \
 352         sizeof(struct bpf_prog_info_struct)
 353 # define expected_bpf_prog_info_struct_size 208
 354
 355 #endif /* !STRACE_BPF_ATTR_H */