src/basic/missing.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2010 Lennart Poettering
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24 /* Missing glibc definitions to access certain kernel APIs */
  25
  26 #include <sys/resource.h>
  27 #include <sys/syscall.h>
  28 #include <fcntl.h>
  29 #include <stdlib.h>
  30 #include <unistd.h>
  31 #include <errno.h>
  32 #include <linux/oom.h>
  33 #include <linux/input.h>
  34 #include <linux/if_link.h>
  35 #include <linux/loop.h>
  36 #include <linux/audit.h>
  37 #include <linux/capability.h>
  38 #include <linux/neighbour.h>
  39
  40 #ifdef HAVE_AUDIT
  41 #include <libaudit.h>
  42 #endif
  43
  44 #ifdef ARCH_MIPS
  45 #include <asm/sgidefs.h>
  46 #endif
  47
  48 #ifdef HAVE_LINUX_BTRFS_H
  49 #include <linux/btrfs.h>
  50 #endif
  51
  52 #include "macro.h"
  53
  54 #ifndef RLIMIT_RTTIME
  55 #define RLIMIT_RTTIME 15
  56 #endif
  57
  58 /* If RLIMIT_RTTIME is not defined, then we cannot use RLIMIT_NLIMITS as is */
  59 #define _RLIMIT_MAX (RLIMIT_RTTIME+1 > RLIMIT_NLIMITS ? RLIMIT_RTTIME+1 : RLIMIT_NLIMITS)
  60
  61 #ifndef F_LINUX_SPECIFIC_BASE
  62 #define F_LINUX_SPECIFIC_BASE 1024
  63 #endif
  64
  65 #ifndef F_SETPIPE_SZ
  66 #define F_SETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 7)
  67 #endif
  68
  69 #ifndef F_GETPIPE_SZ
  70 #define F_GETPIPE_SZ (F_LINUX_SPECIFIC_BASE + 8)
  71 #endif
  72
  73 #ifndef F_ADD_SEALS
  74 #define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
  75 #define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
  76
  77 #define F_SEAL_SEAL     0x0001  /* prevent further seals from being set */
  78 #define F_SEAL_SHRINK   0x0002  /* prevent file from shrinking */
  79 #define F_SEAL_GROW     0x0004  /* prevent file from growing */
  80 #define F_SEAL_WRITE    0x0008  /* prevent writes */
  81 #endif
  82
  83 #ifndef F_OFD_GETLK
  84 #define F_OFD_GETLK     36
  85 #define F_OFD_SETLK     37
  86 #define F_OFD_SETLKW    38
  87 #endif
  88
  89 #ifndef MFD_ALLOW_SEALING
  90 #define MFD_ALLOW_SEALING 0x0002U
  91 #endif
  92
  93 #ifndef MFD_CLOEXEC
  94 #define MFD_CLOEXEC 0x0001U
  95 #endif
  96
  97 #ifndef IP_FREEBIND
  98 #define IP_FREEBIND 15
  99 #endif
 100
 101 #ifndef OOM_SCORE_ADJ_MIN
 102 #define OOM_SCORE_ADJ_MIN (-1000)
 103 #endif
 104
 105 #ifndef OOM_SCORE_ADJ_MAX
 106 #define OOM_SCORE_ADJ_MAX 1000
 107 #endif
 108
 109 #ifndef AUDIT_SERVICE_START
 110 #define AUDIT_SERVICE_START 1130 /* Service (daemon) start */
 111 #endif
 112
 113 #ifndef AUDIT_SERVICE_STOP
 114 #define AUDIT_SERVICE_STOP 1131 /* Service (daemon) stop */
 115 #endif
 116
 117 #ifndef TIOCVHANGUP
 118 #define TIOCVHANGUP 0x5437
 119 #endif
 120
 121 #ifndef IP_TRANSPARENT
 122 #define IP_TRANSPARENT 19
 123 #endif
 124
 125 #ifndef SOL_NETLINK
 126 #define SOL_NETLINK 270
 127 #endif
 128
 129 #if !HAVE_DECL_PIVOT_ROOT
 130 static inline int pivot_root(const char *new_root, const char *put_old) {
 131         return syscall(SYS_pivot_root, new_root, put_old);
 132 }
 133 #endif
 134
 135 #ifndef __NR_memfd_create
 136 #  if defined __x86_64__
 137 #    define __NR_memfd_create 319
 138 #  elif defined __arm__
 139 #    define __NR_memfd_create 385
 140 #  elif defined __aarch64__
 141 #    define __NR_memfd_create 279
 142 #  elif defined _MIPS_SIM
 143 #    if _MIPS_SIM == _MIPS_SIM_ABI32
 144 #      define __NR_memfd_create 4354
 145 #    endif
 146 #    if _MIPS_SIM == _MIPS_SIM_NABI32
 147 #      define __NR_memfd_create 6318
 148 #    endif
 149 #    if _MIPS_SIM == _MIPS_SIM_ABI64
 150 #      define __NR_memfd_create 5314
 151 #    endif
 152 #  elif defined __i386__
 153 #    define __NR_memfd_create 356
 154 #  else
 155 #    warning "__NR_memfd_create unknown for your architecture"
 156 #    define __NR_memfd_create 0xffffffff
 157 #  endif
 158 #endif
 159
 160 #ifndef HAVE_MEMFD_CREATE
 161 static inline int memfd_create(const char *name, unsigned int flags) {
 162         return syscall(__NR_memfd_create, name, flags);
 163 }
 164 #endif
 165
 166 #ifndef __NR_getrandom
 167 #  if defined __x86_64__
 168 #    define __NR_getrandom 318
 169 #  elif defined(__i386__)
 170 #    define __NR_getrandom 355
 171 #  elif defined(__arm__)
 172 #    define __NR_getrandom 384
 173 # elif defined(__aarch64__)
 174 #    define __NR_getrandom 278
 175 #  elif defined(__ia64__)
 176 #    define __NR_getrandom 1339
 177 #  elif defined(__m68k__)
 178 #    define __NR_getrandom 352
 179 #  elif defined(__s390x__)
 180 #    define __NR_getrandom 349
 181 #  elif defined(__powerpc__)
 182 #    define __NR_getrandom 359
 183 #  elif defined _MIPS_SIM
 184 #    if _MIPS_SIM == _MIPS_SIM_ABI32
 185 #      define __NR_getrandom 4353
 186 #    endif
 187 #    if _MIPS_SIM == _MIPS_SIM_NABI32
 188 #      define __NR_getrandom 6317
 189 #    endif
 190 #    if _MIPS_SIM == _MIPS_SIM_ABI64
 191 #      define __NR_getrandom 5313
 192 #    endif
 193 #  else
 194 #    warning "__NR_getrandom unknown for your architecture"
 195 #    define __NR_getrandom 0xffffffff
 196 #  endif
 197 #endif
 198
 199 #if !HAVE_DECL_GETRANDOM
 200 static inline int getrandom(void *buffer, size_t count, unsigned flags) {
 201         return syscall(__NR_getrandom, buffer, count, flags);
 202 }
 203 #endif
 204
 205 #ifndef GRND_NONBLOCK
 206 #define GRND_NONBLOCK 0x0001
 207 #endif
 208
 209 #ifndef GRND_RANDOM
 210 #define GRND_RANDOM 0x0002
 211 #endif
 212
 213 #ifndef BTRFS_IOCTL_MAGIC
 214 #define BTRFS_IOCTL_MAGIC 0x94
 215 #endif
 216
 217 #ifndef BTRFS_PATH_NAME_MAX
 218 #define BTRFS_PATH_NAME_MAX 4087
 219 #endif
 220
 221 #ifndef BTRFS_DEVICE_PATH_NAME_MAX
 222 #define BTRFS_DEVICE_PATH_NAME_MAX 1024
 223 #endif
 224
 225 #ifndef BTRFS_FSID_SIZE
 226 #define BTRFS_FSID_SIZE 16
 227 #endif
 228
 229 #ifndef BTRFS_UUID_SIZE
 230 #define BTRFS_UUID_SIZE 16
 231 #endif
 232
 233 #ifndef BTRFS_SUBVOL_RDONLY
 234 #define BTRFS_SUBVOL_RDONLY (1ULL << 1)
 235 #endif
 236
 237 #ifndef BTRFS_SUBVOL_NAME_MAX
 238 #define BTRFS_SUBVOL_NAME_MAX 4039
 239 #endif
 240
 241 #ifndef BTRFS_INO_LOOKUP_PATH_MAX
 242 #define BTRFS_INO_LOOKUP_PATH_MAX 4080
 243 #endif
 244
 245 #ifndef BTRFS_SEARCH_ARGS_BUFSIZE
 246 #define BTRFS_SEARCH_ARGS_BUFSIZE (4096 - sizeof(struct btrfs_ioctl_search_key))
 247 #endif
 248
 249 #ifndef HAVE_LINUX_BTRFS_H
 250 struct btrfs_ioctl_vol_args {
 251         int64_t fd;
 252         char name[BTRFS_PATH_NAME_MAX + 1];
 253 };
 254
 255 struct btrfs_qgroup_limit {
 256         __u64 flags;
 257         __u64 max_rfer;
 258         __u64 max_excl;
 259         __u64 rsv_rfer;
 260         __u64 rsv_excl;
 261 };
 262
 263 struct btrfs_qgroup_inherit {
 264         __u64 flags;
 265         __u64 num_qgroups;
 266         __u64 num_ref_copies;
 267         __u64 num_excl_copies;
 268         struct btrfs_qgroup_limit lim;
 269         __u64 qgroups[0];
 270 };
 271
 272 struct btrfs_ioctl_qgroup_limit_args {
 273         __u64 qgroupid;
 274         struct btrfs_qgroup_limit lim;
 275 };
 276
 277 struct btrfs_ioctl_vol_args_v2 {
 278         __s64 fd;
 279         __u64 transid;
 280         __u64 flags;
 281         union {
 282                 struct {
 283                         __u64 size;
 284                         struct btrfs_qgroup_inherit *qgroup_inherit;
 285                 };
 286                 __u64 unused[4];
 287         };
 288         char name[BTRFS_SUBVOL_NAME_MAX + 1];
 289 };
 290
 291 struct btrfs_ioctl_dev_info_args {
 292         uint64_t devid;                         /* in/out */
 293         uint8_t uuid[BTRFS_UUID_SIZE];          /* in/out */
 294         uint64_t bytes_used;                    /* out */
 295         uint64_t total_bytes;                   /* out */
 296         uint64_t unused[379];                   /* pad to 4k */
 297         char path[BTRFS_DEVICE_PATH_NAME_MAX];  /* out */
 298 };
 299
 300 struct btrfs_ioctl_fs_info_args {
 301         uint64_t max_id;                        /* out */
 302         uint64_t num_devices;                   /* out */
 303         uint8_t fsid[BTRFS_FSID_SIZE];          /* out */
 304         uint64_t reserved[124];                 /* pad to 1k */
 305 };
 306
 307 struct btrfs_ioctl_ino_lookup_args {
 308         __u64 treeid;
 309         __u64 objectid;
 310         char name[BTRFS_INO_LOOKUP_PATH_MAX];
 311 };
 312
 313 struct btrfs_ioctl_search_key {
 314         /* which root are we searching.  0 is the tree of tree roots */
 315         __u64 tree_id;
 316
 317         /* keys returned will be >= min and <= max */
 318         __u64 min_objectid;
 319         __u64 max_objectid;
 320
 321         /* keys returned will be >= min and <= max */
 322         __u64 min_offset;
 323         __u64 max_offset;
 324
 325         /* max and min transids to search for */
 326         __u64 min_transid;
 327         __u64 max_transid;
 328
 329         /* keys returned will be >= min and <= max */
 330         __u32 min_type;
 331         __u32 max_type;
 332
 333         /*
 334          * how many items did userland ask for, and how many are we
 335          * returning
 336          */
 337         __u32 nr_items;
 338
 339         /* align to 64 bits */
 340         __u32 unused;
 341
 342         /* some extra for later */
 343         __u64 unused1;
 344         __u64 unused2;
 345         __u64 unused3;
 346         __u64 unused4;
 347 };
 348
 349 struct btrfs_ioctl_search_header {
 350         __u64 transid;
 351         __u64 objectid;
 352         __u64 offset;
 353         __u32 type;
 354         __u32 len;
 355 };
 356
 357
 358 struct btrfs_ioctl_search_args {
 359         struct btrfs_ioctl_search_key key;
 360         char buf[BTRFS_SEARCH_ARGS_BUFSIZE];
 361 };
 362
 363 struct btrfs_ioctl_clone_range_args {
 364         __s64 src_fd;
 365         __u64 src_offset, src_length;
 366         __u64 dest_offset;
 367 };
 368
 369 #define BTRFS_QUOTA_CTL_ENABLE  1
 370 #define BTRFS_QUOTA_CTL_DISABLE 2
 371 #define BTRFS_QUOTA_CTL_RESCAN__NOTUSED 3
 372 struct btrfs_ioctl_quota_ctl_args {
 373         __u64 cmd;
 374         __u64 status;
 375 };
 376 #endif
 377
 378 #ifndef BTRFS_IOC_DEFRAG
 379 #define BTRFS_IOC_DEFRAG _IOW(BTRFS_IOCTL_MAGIC, 2, \
 380                                  struct btrfs_ioctl_vol_args)
 381 #endif
 382
 383 #ifndef BTRFS_IOC_RESIZE
 384 #define BTRFS_IOC_RESIZE _IOW(BTRFS_IOCTL_MAGIC, 3, \
 385                                  struct btrfs_ioctl_vol_args)
 386 #endif
 387
 388 #ifndef BTRFS_IOC_CLONE
 389 #define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
 390 #endif
 391
 392 #ifndef BTRFS_IOC_CLONE_RANGE
 393 #define BTRFS_IOC_CLONE_RANGE _IOW(BTRFS_IOCTL_MAGIC, 13, \
 394                                  struct btrfs_ioctl_clone_range_args)
 395 #endif
 396
 397 #ifndef BTRFS_IOC_SUBVOL_CREATE
 398 #define BTRFS_IOC_SUBVOL_CREATE _IOW(BTRFS_IOCTL_MAGIC, 14, \
 399                                  struct btrfs_ioctl_vol_args)
 400 #endif
 401
 402 #ifndef BTRFS_IOC_SNAP_DESTROY
 403 #define BTRFS_IOC_SNAP_DESTROY _IOW(BTRFS_IOCTL_MAGIC, 15, \
 404                                  struct btrfs_ioctl_vol_args)
 405 #endif
 406
 407 #ifndef BTRFS_IOC_TREE_SEARCH
 408 #define BTRFS_IOC_TREE_SEARCH _IOWR(BTRFS_IOCTL_MAGIC, 17, \
 409                                  struct btrfs_ioctl_search_args)
 410 #endif
 411
 412 #ifndef BTRFS_IOC_INO_LOOKUP
 413 #define BTRFS_IOC_INO_LOOKUP _IOWR(BTRFS_IOCTL_MAGIC, 18, \
 414                                  struct btrfs_ioctl_ino_lookup_args)
 415 #endif
 416
 417 #ifndef BTRFS_IOC_SNAP_CREATE_V2
 418 #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \
 419                                  struct btrfs_ioctl_vol_args_v2)
 420 #endif
 421
 422 #ifndef BTRFS_IOC_SUBVOL_GETFLAGS
 423 #define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64)
 424 #endif
 425
 426 #ifndef BTRFS_IOC_SUBVOL_SETFLAGS
 427 #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64)
 428 #endif
 429
 430 #ifndef BTRFS_IOC_DEV_INFO
 431 #define BTRFS_IOC_DEV_INFO _IOWR(BTRFS_IOCTL_MAGIC, 30, \
 432                                  struct btrfs_ioctl_dev_info_args)
 433 #endif
 434
 435 #ifndef BTRFS_IOC_FS_INFO
 436 #define BTRFS_IOC_FS_INFO _IOR(BTRFS_IOCTL_MAGIC, 31, \
 437                                  struct btrfs_ioctl_fs_info_args)
 438 #endif
 439
 440 #ifndef BTRFS_IOC_DEVICES_READY
 441 #define BTRFS_IOC_DEVICES_READY _IOR(BTRFS_IOCTL_MAGIC, 39, \
 442                                  struct btrfs_ioctl_vol_args)
 443 #endif
 444
 445 #ifndef BTRFS_IOC_QUOTA_CTL
 446 #define BTRFS_IOC_QUOTA_CTL _IOWR(BTRFS_IOCTL_MAGIC, 40, \
 447                                struct btrfs_ioctl_quota_ctl_args)
 448 #endif
 449
 450 #ifndef BTRFS_IOC_QGROUP_LIMIT
 451 #define BTRFS_IOC_QGROUP_LIMIT _IOR(BTRFS_IOCTL_MAGIC, 43, \
 452                                struct btrfs_ioctl_qgroup_limit_args)
 453 #endif
 454
 455 #ifndef BTRFS_FIRST_FREE_OBJECTID
 456 #define BTRFS_FIRST_FREE_OBJECTID 256
 457 #endif
 458
 459 #ifndef BTRFS_LAST_FREE_OBJECTID
 460 #define BTRFS_LAST_FREE_OBJECTID -256ULL
 461 #endif
 462
 463 #ifndef BTRFS_ROOT_TREE_OBJECTID
 464 #define BTRFS_ROOT_TREE_OBJECTID 1
 465 #endif
 466
 467 #ifndef BTRFS_QUOTA_TREE_OBJECTID
 468 #define BTRFS_QUOTA_TREE_OBJECTID 8ULL
 469 #endif
 470
 471 #ifndef BTRFS_ROOT_ITEM_KEY
 472 #define BTRFS_ROOT_ITEM_KEY 132
 473 #endif
 474
 475 #ifndef BTRFS_QGROUP_STATUS_KEY
 476 #define BTRFS_QGROUP_STATUS_KEY 240
 477 #endif
 478
 479 #ifndef BTRFS_QGROUP_INFO_KEY
 480 #define BTRFS_QGROUP_INFO_KEY 242
 481 #endif
 482
 483 #ifndef BTRFS_QGROUP_LIMIT_KEY
 484 #define BTRFS_QGROUP_LIMIT_KEY 244
 485 #endif
 486
 487 #ifndef BTRFS_ROOT_BACKREF_KEY
 488 #define BTRFS_ROOT_BACKREF_KEY 144
 489 #endif
 490
 491 #ifndef BTRFS_SUPER_MAGIC
 492 #define BTRFS_SUPER_MAGIC 0x9123683E
 493 #endif
 494
 495 #ifndef CGROUP_SUPER_MAGIC
 496 #define CGROUP_SUPER_MAGIC 0x27e0eb
 497 #endif
 498
 499 #ifndef TMPFS_MAGIC
 500 #define TMPFS_MAGIC 0x01021994
 501 #endif
 502
 503 #ifndef MS_MOVE
 504 #define MS_MOVE 8192
 505 #endif
 506
 507 #ifndef MS_PRIVATE
 508 #define MS_PRIVATE  (1 << 18)
 509 #endif
 510
 511 #if !HAVE_DECL_GETTID
 512 static inline pid_t gettid(void) {
 513         return (pid_t) syscall(SYS_gettid);
 514 }
 515 #endif
 516
 517 #ifndef SCM_SECURITY
 518 #define SCM_SECURITY 0x03
 519 #endif
 520
 521 #ifndef MS_STRICTATIME
 522 #define MS_STRICTATIME (1<<24)
 523 #endif
 524
 525 #ifndef MS_REC
 526 #define MS_REC 16384
 527 #endif
 528
 529 #ifndef MS_SHARED
 530 #define MS_SHARED (1<<20)
 531 #endif
 532
 533 #ifndef PR_SET_NO_NEW_PRIVS
 534 #define PR_SET_NO_NEW_PRIVS 38
 535 #endif
 536
 537 #ifndef PR_SET_CHILD_SUBREAPER
 538 #define PR_SET_CHILD_SUBREAPER 36
 539 #endif
 540
 541 #ifndef MAX_HANDLE_SZ
 542 #define MAX_HANDLE_SZ 128
 543 #endif
 544
 545 #ifndef __NR_name_to_handle_at
 546 #  if defined(__x86_64__)
 547 #    define __NR_name_to_handle_at 303
 548 #  elif defined(__i386__)
 549 #    define __NR_name_to_handle_at 341
 550 #  elif defined(__arm__)
 551 #    define __NR_name_to_handle_at 370
 552 #  elif defined(__powerpc__)
 553 #    define __NR_name_to_handle_at 345
 554 #  else
 555 #    error "__NR_name_to_handle_at is not defined"
 556 #  endif
 557 #endif
 558
 559 #if !HAVE_DECL_NAME_TO_HANDLE_AT
 560 struct file_handle {
 561         unsigned int handle_bytes;
 562         int handle_type;
 563         unsigned char f_handle[0];
 564 };
 565
 566 static inline int name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
 567         return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
 568 }
 569 #endif
 570
 571 #ifndef HAVE_SECURE_GETENV
 572 #  ifdef HAVE___SECURE_GETENV
 573 #    define secure_getenv __secure_getenv
 574 #  else
 575 #    error "neither secure_getenv nor __secure_getenv are available"
 576 #  endif
 577 #endif
 578
 579 #ifndef CIFS_MAGIC_NUMBER
 580 #  define CIFS_MAGIC_NUMBER 0xFF534D42
 581 #endif
 582
 583 #ifndef TFD_TIMER_CANCEL_ON_SET
 584 #  define TFD_TIMER_CANCEL_ON_SET (1 << 1)
 585 #endif
 586
 587 #ifndef SO_REUSEPORT
 588 #  define SO_REUSEPORT 15
 589 #endif
 590
 591 #ifndef EVIOCREVOKE
 592 #  define EVIOCREVOKE _IOW('E', 0x91, int)
 593 #endif
 594
 595 #ifndef DRM_IOCTL_SET_MASTER
 596 #  define DRM_IOCTL_SET_MASTER _IO('d', 0x1e)
 597 #endif
 598
 599 #ifndef DRM_IOCTL_DROP_MASTER
 600 #  define DRM_IOCTL_DROP_MASTER _IO('d', 0x1f)
 601 #endif
 602
 603 #if defined(__i386__) || defined(__x86_64__)
 604
 605 /* The precise definition of __O_TMPFILE is arch specific, so let's
 606  * just define this on x86 where we know the value. */
 607
 608 #ifndef __O_TMPFILE
 609 #define __O_TMPFILE     020000000
 610 #endif
 611
 612 /* a horrid kludge trying to make sure that this will fail on old kernels */
 613 #ifndef O_TMPFILE
 614 #define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
 615 #endif
 616
 617 #endif
 618
 619 #ifndef __NR_setns
 620 #  if defined(__x86_64__)
 621 #    define __NR_setns 308
 622 #  elif defined(__i386__)
 623 #    define __NR_setns 346
 624 #  else
 625 #    error "__NR_setns is not defined"
 626 #  endif
 627 #endif
 628
 629 #if !HAVE_DECL_SETNS
 630 static inline int setns(int fd, int nstype) {
 631         return syscall(__NR_setns, fd, nstype);
 632 }
 633 #endif
 634
 635 #if !HAVE_DECL_LO_FLAGS_PARTSCAN
 636 #define LO_FLAGS_PARTSCAN 8
 637 #endif
 638
 639 #ifndef LOOP_CTL_REMOVE
 640 #define LOOP_CTL_REMOVE 0x4C81
 641 #endif
 642
 643 #ifndef LOOP_CTL_GET_FREE
 644 #define LOOP_CTL_GET_FREE 0x4C82
 645 #endif
 646
 647 #if !HAVE_DECL_IFLA_INET6_ADDR_GEN_MODE
 648 #define IFLA_INET6_UNSPEC 0
 649 #define IFLA_INET6_FLAGS 1
 650 #define IFLA_INET6_CONF 2
 651 #define IFLA_INET6_STATS 3
 652 #define IFLA_INET6_MCAST 4
 653 #define IFLA_INET6_CACHEINFO 5
 654 #define IFLA_INET6_ICMP6STATS 6
 655 #define IFLA_INET6_TOKEN 7
 656 #define IFLA_INET6_ADDR_GEN_MODE 8
 657 #define __IFLA_INET6_MAX 9
 658
 659 #define IFLA_INET6_MAX  (__IFLA_INET6_MAX - 1)
 660
 661 #define IN6_ADDR_GEN_MODE_EUI64 0
 662 #define IN6_ADDR_GEN_MODE_NONE 1
 663 #endif
 664
 665 #if !HAVE_DECL_IFLA_MACVLAN_FLAGS
 666 #define IFLA_MACVLAN_UNSPEC 0
 667 #define IFLA_MACVLAN_MODE 1
 668 #define IFLA_MACVLAN_FLAGS 2
 669 #define __IFLA_MACVLAN_MAX 3
 670
 671 #define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
 672 #endif
 673
 674 #if !HAVE_DECL_IFLA_IPVLAN_MODE
 675 #define IFLA_IPVLAN_UNSPEC 0
 676 #define IFLA_IPVLAN_MODE 1
 677 #define __IFLA_IPVLAN_MAX 2
 678
 679 #define IFLA_IPVLAN_MAX (__IFLA_IPVLAN_MAX - 1)
 680
 681 #define IPVLAN_MODE_L2 0
 682 #define IPVLAN_MODE_L3 1
 683 #define IPVLAN_MAX 2
 684 #endif
 685
 686 #if !HAVE_DECL_IFLA_VTI_REMOTE
 687 #define IFLA_VTI_UNSPEC 0
 688 #define IFLA_VTI_LINK 1
 689 #define IFLA_VTI_IKEY 2
 690 #define IFLA_VTI_OKEY 3
 691 #define IFLA_VTI_LOCAL 4
 692 #define IFLA_VTI_REMOTE 5
 693 #define __IFLA_VTI_MAX 6
 694
 695 #define IFLA_VTI_MAX (__IFLA_VTI_MAX - 1)
 696 #endif
 697
 698 #if !HAVE_DECL_IFLA_PHYS_PORT_ID
 699 #undef IFLA_PROMISCUITY
 700 #define IFLA_PROMISCUITY 30
 701 #define IFLA_NUM_TX_QUEUES 31
 702 #define IFLA_NUM_RX_QUEUES 32
 703 #define IFLA_CARRIER 33
 704 #define IFLA_PHYS_PORT_ID 34
 705 #define __IFLA_MAX 35
 706
 707 #define IFLA_MAX (__IFLA_MAX - 1)
 708 #endif
 709
 710 #if !HAVE_DECL_IFLA_BOND_AD_INFO
 711 #define IFLA_BOND_UNSPEC 0
 712 #define IFLA_BOND_MODE 1
 713 #define IFLA_BOND_ACTIVE_SLAVE 2
 714 #define IFLA_BOND_MIIMON 3
 715 #define IFLA_BOND_UPDELAY 4
 716 #define IFLA_BOND_DOWNDELAY 5
 717 #define IFLA_BOND_USE_CARRIER 6
 718 #define IFLA_BOND_ARP_INTERVAL 7
 719 #define IFLA_BOND_ARP_IP_TARGET 8
 720 #define IFLA_BOND_ARP_VALIDATE 9
 721 #define IFLA_BOND_ARP_ALL_TARGETS 10
 722 #define IFLA_BOND_PRIMARY 11
 723 #define IFLA_BOND_PRIMARY_RESELECT 12
 724 #define IFLA_BOND_FAIL_OVER_MAC 13
 725 #define IFLA_BOND_XMIT_HASH_POLICY 14
 726 #define IFLA_BOND_RESEND_IGMP 15
 727 #define IFLA_BOND_NUM_PEER_NOTIF 16
 728 #define IFLA_BOND_ALL_SLAVES_ACTIVE 17
 729 #define IFLA_BOND_MIN_LINKS 18
 730 #define IFLA_BOND_LP_INTERVAL 19
 731 #define IFLA_BOND_PACKETS_PER_SLAVE 20
 732 #define IFLA_BOND_AD_LACP_RATE 21
 733 #define IFLA_BOND_AD_SELECT 22
 734 #define IFLA_BOND_AD_INFO 23
 735 #define __IFLA_BOND_MAX 24
 736
 737 #define IFLA_BOND_MAX   (__IFLA_BOND_MAX - 1)
 738 #endif
 739
 740 #if !HAVE_DECL_IFLA_VLAN_PROTOCOL
 741 #define IFLA_VLAN_UNSPEC 0
 742 #define IFLA_VLAN_ID 1
 743 #define IFLA_VLAN_FLAGS 2
 744 #define IFLA_VLAN_EGRESS_QOS 3
 745 #define IFLA_VLAN_INGRESS_QOS 4
 746 #define IFLA_VLAN_PROTOCOL 5
 747 #define __IFLA_VLAN_MAX 6
 748
 749 #define IFLA_VLAN_MAX   (__IFLA_VLAN_MAX - 1)
 750 #endif
 751
 752 #if !HAVE_DECL_IFLA_VXLAN_REMCSUM_NOPARTIAL
 753 #define IFLA_VXLAN_UNSPEC 0
 754 #define IFLA_VXLAN_ID 1
 755 #define IFLA_VXLAN_GROUP 2
 756 #define IFLA_VXLAN_LINK 3
 757 #define IFLA_VXLAN_LOCAL 4
 758 #define IFLA_VXLAN_TTL 5
 759 #define IFLA_VXLAN_TOS 6
 760 #define IFLA_VXLAN_LEARNING 7
 761 #define IFLA_VXLAN_AGEING 8
 762 #define IFLA_VXLAN_LIMIT 9
 763 #define IFLA_VXLAN_PORT_RANGE 10
 764 #define IFLA_VXLAN_PROXY 11
 765 #define IFLA_VXLAN_RSC 12
 766 #define IFLA_VXLAN_L2MISS 13
 767 #define IFLA_VXLAN_L3MISS 14
 768 #define IFLA_VXLAN_PORT 15
 769 #define IFLA_VXLAN_GROUP6 16
 770 #define IFLA_VXLAN_LOCAL6 17
 771 #define IFLA_VXLAN_UDP_CSUM 18
 772 #define IFLA_VXLAN_UDP_ZERO_CSUM6_TX 19
 773 #define IFLA_VXLAN_UDP_ZERO_CSUM6_RX 20
 774 #define IFLA_VXLAN_REMCSUM_TX 21
 775 #define IFLA_VXLAN_REMCSUM_RX 22
 776 #define IFLA_VXLAN_GBP 23
 777 #define IFLA_VXLAN_REMCSUM_NOPARTIAL 24
 778 #define __IFLA_VXLAN_MAX 25
 779
 780 #define IFLA_VXLAN_MAX  (__IFLA_VXLAN_MAX - 1)
 781 #endif
 782
 783 #if !HAVE_DECL_IFLA_IPTUN_ENCAP_DPORT
 784 #define IFLA_IPTUN_UNSPEC 0
 785 #define IFLA_IPTUN_LINK 1
 786 #define IFLA_IPTUN_LOCAL 2
 787 #define IFLA_IPTUN_REMOTE 3
 788 #define IFLA_IPTUN_TTL 4
 789 #define IFLA_IPTUN_TOS 5
 790 #define IFLA_IPTUN_ENCAP_LIMIT 6
 791 #define IFLA_IPTUN_FLOWINFO 7
 792 #define IFLA_IPTUN_FLAGS 8
 793 #define IFLA_IPTUN_PROTO 9
 794 #define IFLA_IPTUN_PMTUDISC 10
 795 #define IFLA_IPTUN_6RD_PREFIX 11
 796 #define IFLA_IPTUN_6RD_RELAY_PREFIX 12
 797 #define IFLA_IPTUN_6RD_PREFIXLEN 13
 798 #define IFLA_IPTUN_6RD_RELAY_PREFIXLEN 14
 799 #define IFLA_IPTUN_ENCAP_TYPE 15
 800 #define IFLA_IPTUN_ENCAP_FLAGS 16
 801 #define IFLA_IPTUN_ENCAP_SPORT 17
 802 #define IFLA_IPTUN_ENCAP_DPORT 18
 803
 804 #define __IFLA_IPTUN_MAX 19
 805
 806 #define IFLA_IPTUN_MAX  (__IFLA_IPTUN_MAX - 1)
 807 #endif
 808
 809 #if !HAVE_DECL_IFLA_GRE_ENCAP_DPORT
 810 #define IFLA_GRE_UNSPEC 0
 811 #define IFLA_GRE_LINK 1
 812 #define IFLA_GRE_IFLAGS 2
 813 #define IFLA_GRE_OFLAGS 3
 814 #define IFLA_GRE_IKEY 4
 815 #define IFLA_GRE_OKEY 5
 816 #define IFLA_GRE_LOCAL 6
 817 #define IFLA_GRE_REMOTE 7
 818 #define IFLA_GRE_TTL 8
 819 #define IFLA_GRE_TOS 9
 820 #define IFLA_GRE_PMTUDISC 10
 821 #define IFLA_GRE_ENCAP_LIMIT 11
 822 #define IFLA_GRE_FLOWINFO 12
 823 #define IFLA_GRE_FLAGS 13
 824 #define IFLA_GRE_ENCAP_TYPE 14
 825 #define IFLA_GRE_ENCAP_FLAGS 15
 826 #define IFLA_GRE_ENCAP_SPORT 16
 827 #define IFLA_GRE_ENCAP_DPORT 17
 828
 829 #define __IFLA_GRE_MAX 18
 830
 831 #define IFLA_GRE_MAX  (__IFLA_GRE_MAX - 1)
 832 #endif
 833
 834 #if !HAVE_DECL_IFLA_BRIDGE_VLAN_INFO
 835 #define IFLA_BRIDGE_FLAGS 0
 836 #define IFLA_BRIDGE_MODE 1
 837 #define IFLA_BRIDGE_VLAN_INFO 2
 838 #define __IFLA_BRIDGE_MAX 3
 839
 840 #define IFLA_BRIDGE_MAX (__IFLA_BRIDGE_MAX - 1)
 841 #endif
 842
 843 #if !HAVE_DECL_IFLA_BRPORT_LEARNING_SYNC
 844 #define IFLA_BRPORT_UNSPEC 0
 845 #define IFLA_BRPORT_STATE 1
 846 #define IFLA_BRPORT_PRIORITY 2
 847 #define IFLA_BRPORT_COST 3
 848 #define IFLA_BRPORT_MODE 4
 849 #define IFLA_BRPORT_GUARD 5
 850 #define IFLA_BRPORT_PROTECT 6
 851 #define IFLA_BRPORT_FAST_LEAVE 7
 852 #define IFLA_BRPORT_LEARNING 8
 853 #define IFLA_BRPORT_UNICAST_FLOOD 9
 854 #define IFLA_BRPORT_PROXYARP 10
 855 #define IFLA_BRPORT_LEARNING_SYNC 11
 856 #define __IFLA_BRPORT_MAX 12
 857
 858 #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)
 859 #endif
 860
 861 #if !HAVE_DECL_NDA_IFINDEX
 862 #define NDA_UNSPEC 0
 863 #define NDA_DST 1
 864 #define NDA_LLADDR 2
 865 #define NDA_CACHEINFO 3
 866 #define NDA_PROBES 4
 867 #define NDA_VLAN 5
 868 #define NDA_PORT 6
 869 #define NDA_VNI 7
 870 #define NDA_IFINDEX 8
 871 #define __NDA_MAX 9
 872
 873 #define NDA_MAX (__NDA_MAX - 1)
 874 #endif
 875
 876 #ifndef IPV6_UNICAST_IF
 877 #define IPV6_UNICAST_IF 76
 878 #endif
 879
 880 #ifndef IFF_MULTI_QUEUE
 881 #define IFF_MULTI_QUEUE 0x100
 882 #endif
 883
 884 #ifndef IFF_LOWER_UP
 885 #define IFF_LOWER_UP 0x10000
 886 #endif
 887
 888 #ifndef IFF_DORMANT
 889 #define IFF_DORMANT 0x20000
 890 #endif
 891
 892 #ifndef BOND_XMIT_POLICY_ENCAP23
 893 #define BOND_XMIT_POLICY_ENCAP23 3
 894 #endif
 895
 896 #ifndef BOND_XMIT_POLICY_ENCAP34
 897 #define BOND_XMIT_POLICY_ENCAP34 4
 898 #endif
 899
 900 #ifndef NET_ADDR_RANDOM
 901 #  define NET_ADDR_RANDOM 1
 902 #endif
 903
 904 #ifndef NET_NAME_UNKNOWN
 905 #  define NET_NAME_UNKNOWN 0
 906 #endif
 907
 908 #ifndef NET_NAME_ENUM
 909 #  define NET_NAME_ENUM 1
 910 #endif
 911
 912 #ifndef NET_NAME_PREDICTABLE
 913 #  define NET_NAME_PREDICTABLE 2
 914 #endif
 915
 916 #ifndef NET_NAME_USER
 917 #  define NET_NAME_USER 3
 918 #endif
 919
 920 #ifndef NET_NAME_RENAMED
 921 #  define NET_NAME_RENAMED 4
 922 #endif
 923
 924 #ifndef BPF_XOR
 925 #  define BPF_XOR 0xa0
 926 #endif
 927
 928 /* Note that LOOPBACK_IFINDEX is currently not exported by the
 929  * kernel/glibc, but hardcoded internally by the kernel.  However, as
 930  * it is exported to userspace indirectly via rtnetlink and the
 931  * ioctls, and made use of widely we define it here too, in a way that
 932  * is compatible with the kernel's internal definition. */
 933 #ifndef LOOPBACK_IFINDEX
 934 #define LOOPBACK_IFINDEX 1
 935 #endif
 936
 937 #if !HAVE_DECL_IFA_FLAGS
 938 #define IFA_FLAGS 8
 939 #endif
 940
 941 #ifndef IFA_F_NOPREFIXROUTE
 942 #define IFA_F_NOPREFIXROUTE 0x200
 943 #endif
 944
 945 #ifndef MAX_AUDIT_MESSAGE_LENGTH
 946 #define MAX_AUDIT_MESSAGE_LENGTH 8970
 947 #endif
 948
 949 #ifndef AUDIT_NLGRP_MAX
 950 #define AUDIT_NLGRP_READLOG 1
 951 #endif
 952
 953 #ifndef CAP_MAC_OVERRIDE
 954 #define CAP_MAC_OVERRIDE 32
 955 #endif
 956
 957 #ifndef CAP_MAC_ADMIN
 958 #define CAP_MAC_ADMIN 33
 959 #endif
 960
 961 #ifndef CAP_SYSLOG
 962 #define CAP_SYSLOG 34
 963 #endif
 964
 965 #ifndef CAP_WAKE_ALARM
 966 #define CAP_WAKE_ALARM 35
 967 #endif
 968
 969 #ifndef CAP_BLOCK_SUSPEND
 970 #define CAP_BLOCK_SUSPEND 36
 971 #endif
 972
 973 #ifndef CAP_AUDIT_READ
 974 #define CAP_AUDIT_READ 37
 975 #endif
 976
 977 static inline int raw_clone(unsigned long flags, void *child_stack) {
 978 #if defined(__s390__) || defined(__CRIS__)
 979         /* On s390 and cris the order of the first and second arguments
 980          * of the raw clone() system call is reversed. */
 981         return (int) syscall(__NR_clone, child_stack, flags);
 982 #else
 983         return (int) syscall(__NR_clone, flags, child_stack);
 984 #endif
 985 }
 986
 987 static inline pid_t raw_getpid(void) {
 988 #if defined(__alpha__)
 989         return (pid_t) syscall(__NR_getxpid);
 990 #else
 991         return (pid_t) syscall(__NR_getpid);
 992 #endif
 993 }
 994
 995 #if !HAVE_DECL_RENAMEAT2
 996
 997 #ifndef __NR_renameat2
 998 #  if defined __x86_64__
 999 #    define __NR_renameat2 316
1000 #  elif defined __arm__
1001 #    define __NR_renameat2 382
1002 #  elif defined _MIPS_SIM
1003 #    if _MIPS_SIM == _MIPS_SIM_ABI32
1004 #      define __NR_renameat2 4351
1005 #    endif
1006 #    if _MIPS_SIM == _MIPS_SIM_NABI32
1007 #      define __NR_renameat2 6315
1008 #    endif
1009 #    if _MIPS_SIM == _MIPS_SIM_ABI64
1010 #      define __NR_renameat2 5311
1011 #    endif
1012 #  elif defined __i386__
1013 #    define __NR_renameat2 353
1014 #  else
1015 #    warning "__NR_renameat2 unknown for your architecture"
1016 #    define __NR_renameat2 0xffffffff
1017 #  endif
1018 #endif
1019
1020 static inline int renameat2(int oldfd, const char *oldname, int newfd, const char *newname, unsigned flags) {
1021         return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
1022 }
1023 #endif
1024
1025 #ifndef RENAME_NOREPLACE
1026 #define RENAME_NOREPLACE (1 << 0)
1027 #endif
1028
1029 #if !HAVE_DECL_KCMP
1030 static inline int kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
1031         return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
1032 }
1033 #endif
1034
1035 #ifndef KCMP_FILE
1036 #define KCMP_FILE 0
1037 #endif
1038
1039 #ifndef INPUT_PROP_POINTING_STICK
1040 #define INPUT_PROP_POINTING_STICK 0x05
1041 #endif
1042
1043 #ifndef INPUT_PROP_ACCELEROMETER
1044 #define INPUT_PROP_ACCELEROMETER  0x06
1045 #endif