granicus.if.org Git - strace/blob - tests/xstatx.c

   1 /*
   2  * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
   3  * Copyright (c) 2015-2017 The strace developers.
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #if defined HAVE_FTRUNCATE && defined HAVE_FUTIMENS
  30
  31 # ifndef TEST_SYSCALL_STR
  32 #  error TEST_SYSCALL_STR must be defined
  33 # endif
  34 # ifndef TEST_SYSCALL_INVOKE
  35 #  error TEST_SYSCALL_INVOKE must be defined
  36 # endif
  37 # ifndef PRINT_SYSCALL_HEADER
  38 #  error PRINT_SYSCALL_HEADER must be defined
  39 # endif
  40 # ifndef PRINT_SYSCALL_FOOTER
  41 #  error PRINT_SYSCALL_FOOTER must be defined
  42 # endif
  43
  44 # include <errno.h>
  45 # include <stdio.h>
  46 # include <stddef.h>
  47 # include <time.h>
  48 # include <unistd.h>
  49 # include <sys/sysmacros.h>
  50
  51 # include "statx.h"
  52
  53 # ifndef STRUCT_STAT
  54 #  define STRUCT_STAT struct stat
  55 #  define STRUCT_STAT_STR "struct stat"
  56 #  define STRUCT_STAT_IS_STAT64 0
  57 # endif
  58 # ifndef SAMPLE_SIZE
  59 #  define SAMPLE_SIZE ((libc_off_t) 43147718418ULL)
  60 # endif
  61
  62 typedef off_t libc_off_t;
  63
  64 # define stat libc_stat
  65 # define stat64 libc_stat64
  66 # include <fcntl.h>
  67 # include <sys/stat.h>
  68 # undef stat
  69 # undef stat64
  70
  71 # undef st_atime
  72 # undef st_mtime
  73 # undef st_ctime
  74 # include "asm_stat.h"
  75
  76 # if STRUCT_STAT_IS_STAT64
  77 #  undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
  78 #  if defined MPERS_IS_m32
  79 #   ifdef HAVE_M32_STRUCT_STAT64_ST_MTIME_NSEC
  80 #    define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
  81 #   endif
  82 #  elif defined MPERS_IS_mx32
  83 #   ifdef HAVE_MX32_STRUCT_STAT64_ST_MTIME_NSEC
  84 #    define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
  85 #   endif
  86 #  elif defined HAVE_STRUCT_STAT64_ST_MTIME_NSEC
  87 #   define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
  88 #  endif /* MPERS_IS_m32 || MPERS_IS_mx32 || HAVE_STRUCT_STAT64_ST_MTIME_NSEC */
  89 # else /* !STRUCT_STAT_IS_STAT64 */
  90 #  if defined MPERS_IS_m32
  91 #   undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
  92 #   ifdef HAVE_M32_STRUCT_STAT_ST_MTIME_NSEC
  93 #    define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
  94 #   endif
  95 #  elif defined MPERS_IS_mx32
  96 #   undef HAVE_STRUCT_STAT_ST_MTIME_NSEC
  97 #   ifdef HAVE_MX32_STRUCT_STAT_ST_MTIME_NSEC
  98 #    define HAVE_STRUCT_STAT_ST_MTIME_NSEC 1
  99 #   endif
 100 #  endif /*  MPERS_IS_m32 || MPERS_IS_mx32 */
 101 # endif /* STRUCT_STAT_IS_STAT64 */
 102
 103 # ifndef TEST_BOGUS_STRUCT_STAT
 104 #  define TEST_BOGUS_STRUCT_STAT 1
 105 # endif
 106
 107 # ifndef IS_FSTAT
 108 #  define IS_FSTAT 0
 109 # endif
 110
 111 # ifndef OLD_STAT
 112 #  define OLD_STAT 0
 113 # endif
 114
 115 # ifndef IS_STATX
 116 #  define IS_STATX 0
 117 # endif
 118
 119 static void
 120 print_ftype(const unsigned int mode)
 121 {
 122         if (S_ISREG(mode))
 123                 printf("S_IFREG");
 124         else if (S_ISDIR(mode))
 125                 printf("S_IFDIR");
 126         else if (S_ISCHR(mode))
 127                 printf("S_IFCHR");
 128         else if (S_ISBLK(mode))
 129                 printf("S_IFBLK");
 130         else
 131                 printf("%#o", mode & S_IFMT);
 132 }
 133
 134 static void
 135 print_perms(const unsigned int mode)
 136 {
 137         printf("%#o", mode & ~S_IFMT);
 138 }
 139
 140 # if !IS_STATX
 141
 142 static void
 143 print_stat(const STRUCT_STAT *st)
 144 {
 145         printf("{st_dev=makedev(%u, %u)",
 146                (unsigned int) major(zero_extend_signed_to_ull(st->st_dev)),
 147                (unsigned int) minor(zero_extend_signed_to_ull(st->st_dev)));
 148         printf(", st_ino=%llu", zero_extend_signed_to_ull(st->st_ino));
 149         printf(", st_mode=");
 150         print_ftype(st->st_mode);
 151         printf("|");
 152         print_perms(st->st_mode);
 153         printf(", st_nlink=%llu", zero_extend_signed_to_ull(st->st_nlink));
 154         printf(", st_uid=%llu", zero_extend_signed_to_ull(st->st_uid));
 155         printf(", st_gid=%llu", zero_extend_signed_to_ull(st->st_gid));
 156 #  if OLD_STAT
 157         printf(", st_blksize=0, st_blocks=0");
 158 #  else /* !OLD_STAT */
 159         printf(", st_blksize=%llu", zero_extend_signed_to_ull(st->st_blksize));
 160         printf(", st_blocks=%llu", zero_extend_signed_to_ull(st->st_blocks));
 161 #  endif /* OLD_STAT */
 162
 163         switch (st->st_mode & S_IFMT) {
 164         case S_IFCHR: case S_IFBLK:
 165                 printf(", st_rdev=makedev(%u, %u)",
 166                        (unsigned int) major(zero_extend_signed_to_ull(st->st_rdev)),
 167                        (unsigned int) minor(zero_extend_signed_to_ull(st->st_rdev)));
 168                 break;
 169         default:
 170                 printf(", st_size=%llu", zero_extend_signed_to_ull(st->st_size));
 171         }
 172
 173 #  if defined(HAVE_STRUCT_STAT_ST_MTIME_NSEC) && !OLD_STAT
 174 #   define TIME_NSEC(val)       zero_extend_signed_to_ull(val)
 175 #   define HAVE_NSEC            1
 176 #  else
 177 #   define TIME_NSEC(val)       0ULL
 178 #   define HAVE_NSEC            0
 179 #  endif
 180
 181 #define PRINT_ST_TIME(field)                                            \
 182         printf(", st_" #field "=%lld",                                  \
 183                sign_extend_unsigned_to_ll(st->st_ ## field));           \
 184         print_time_t_nsec(sign_extend_unsigned_to_ll(st->st_ ## field), \
 185                           TIME_NSEC(st->st_ ## field ## _nsec), 1);     \
 186         if (HAVE_NSEC)                                                  \
 187                 printf(", st_" #field "_nsec=%llu",                     \
 188                        TIME_NSEC(st->st_ ## field ## _nsec))
 189
 190         PRINT_ST_TIME(atime);
 191         PRINT_ST_TIME(mtime);
 192         PRINT_ST_TIME(ctime);
 193         printf("}");
 194 }
 195
 196 # else /* !IS_STATX */
 197
 198 static void
 199 print_stat(const STRUCT_STAT *st)
 200 {
 201 #  define PRINT_FIELD_U(field) \
 202         printf(", %s=%llu", #field, (unsigned long long) st->field)
 203
 204 #  define PRINT_FIELD_U32_UID(field) \
 205         if (st->field == (uint32_t) -1) \
 206                 printf(", %s=-1", #field); \
 207         else \
 208                 printf(", %s=%llu", #field, (unsigned long long) st->field)
 209
 210 #  define PRINT_FIELD_TIME(field)                                       \
 211         printf(", %s={tv_sec=%lld, tv_nsec=%u}",                        \
 212                #field, (long long) st->field.tv_sec,                    \
 213                (unsigned) st->field.tv_nsec);                           \
 214         print_time_t_nsec(st->field.tv_sec,                             \
 215                           zero_extend_signed_to_ull(st->field.tv_nsec), 1);
 216
 217         printf("{stx_mask=");
 218         printflags(statx_masks, st->stx_mask, "STATX_???");
 219
 220         PRINT_FIELD_U(stx_blksize);
 221
 222         printf(", stx_attributes=");
 223         printflags(statx_attrs, st->stx_attributes, "STATX_ATTR_???");
 224
 225         PRINT_FIELD_U(stx_nlink);
 226         PRINT_FIELD_U32_UID(stx_uid);
 227         PRINT_FIELD_U32_UID(stx_gid);
 228
 229         printf(", stx_mode=");
 230         print_ftype(st->stx_mode);
 231         printf("|");
 232         print_perms(st->stx_mode);
 233
 234         PRINT_FIELD_U(stx_ino);
 235         PRINT_FIELD_U(stx_size);
 236         PRINT_FIELD_U(stx_blocks);
 237
 238         printf(", stx_attributes_mask=");
 239         printflags(statx_attrs, st->stx_attributes_mask, "STATX_ATTR_???");
 240
 241         PRINT_FIELD_TIME(stx_atime);
 242         PRINT_FIELD_TIME(stx_btime);
 243         PRINT_FIELD_TIME(stx_ctime);
 244         PRINT_FIELD_TIME(stx_mtime);
 245         PRINT_FIELD_U(stx_rdev_major);
 246         PRINT_FIELD_U(stx_rdev_minor);
 247         PRINT_FIELD_U(stx_dev_major);
 248         PRINT_FIELD_U(stx_dev_minor);
 249         printf("}");
 250 }
 251
 252 # endif /* !IS_STATX */
 253
 254 static int
 255 create_sample(const char *fname, const libc_off_t size)
 256 {
 257         static const struct timespec ts[] = {
 258                 {-10843, 135}, {-10841, 246}
 259         };
 260
 261         (void) close(0);
 262         if (open(fname, O_RDWR | O_CREAT | O_TRUNC, 0640)) {
 263                 perror(fname);
 264                 return 77;
 265         }
 266         if (ftruncate(0, size)) {
 267                 perror("ftruncate");
 268                 return 77;
 269         }
 270         if (futimens(0, ts)) {
 271                 perror("futimens");
 272                 return 77;
 273         }
 274         return 0;
 275 }
 276
 277 int
 278 main(void)
 279 {
 280 # if IS_FSTAT
 281         skip_if_unavailable("/proc/self/fd/");
 282 # else
 283         static const char full[] = "/dev/full";
 284 # endif
 285         static const char sample[] = "stat.sample";
 286         TAIL_ALLOC_OBJECT_CONST_PTR(STRUCT_STAT, st);
 287
 288         int rc;
 289
 290         rc = create_sample(sample, SAMPLE_SIZE);
 291         if (rc)
 292                 return rc;
 293
 294 # if TEST_BOGUS_STRUCT_STAT
 295         STRUCT_STAT *st_cut = tail_alloc(sizeof(long) * 4);
 296         rc = TEST_SYSCALL_INVOKE(sample, st_cut);
 297         PRINT_SYSCALL_HEADER(sample);
 298         printf("%p", st_cut);
 299         PRINT_SYSCALL_FOOTER(rc);
 300 # endif
 301
 302 # if !IS_FSTAT
 303         rc = TEST_SYSCALL_INVOKE(full, st);
 304         PRINT_SYSCALL_HEADER(full);
 305         if (rc)
 306                 printf("%p", st);
 307         else
 308                 print_stat(st);
 309         PRINT_SYSCALL_FOOTER(rc);
 310 # endif
 311
 312         if ((rc = TEST_SYSCALL_INVOKE(sample, st))) {
 313                 if (errno != EOVERFLOW) {
 314                         rc = (errno == ENOSYS) ? 77 : 1;
 315                         perror(TEST_SYSCALL_STR);
 316                         return rc;
 317                 }
 318         }
 319
 320 # if IS_STATX
 321 #  define ST_SIZE_FIELD stx_size
 322 # else
 323 #  define ST_SIZE_FIELD st_size
 324 # endif
 325         if (!rc && zero_extend_signed_to_ull(SAMPLE_SIZE) !=
 326             zero_extend_signed_to_ull(st->ST_SIZE_FIELD)) {
 327                 fprintf(stderr, "Size mismatch: "
 328                                 "requested size(%llu) != st_size(%llu)\n",
 329                         zero_extend_signed_to_ull(SAMPLE_SIZE),
 330                         zero_extend_signed_to_ull(st->ST_SIZE_FIELD));
 331                 fprintf(stderr, "The most likely reason for this is incorrect"
 332                                 " definition of %s.\n"
 333                                 "Here is some diagnostics that might help:\n",
 334                         STRUCT_STAT_STR);
 335
 336 # define LOG_STAT_OFFSETOF_SIZEOF(object, member)                       \
 337                 fprintf(stderr, "offsetof(%s, %s) = %zu"                \
 338                                 ", sizeof(%s) = %zu\n",                 \
 339                                 STRUCT_STAT_STR, #member,               \
 340                                 offsetof(STRUCT_STAT, member),          \
 341                                 #member, sizeof((object).member))
 342
 343 # if IS_STATX
 344                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_mask);
 345                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_blksize);
 346                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_attributes);
 347                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_nlink);
 348                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_uid);
 349                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_gid);
 350                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_mode);
 351                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_ino);
 352                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_size);
 353                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_blocks);
 354                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_attributes_mask);
 355                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_atime);
 356                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_btime);
 357                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_ctime);
 358                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_mtime);
 359                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_rdev_major);
 360                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_rdev_minor);
 361                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_dev_major);
 362                 LOG_STAT_OFFSETOF_SIZEOF(*st, stx_dev_minor);
 363 # else
 364                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_dev);
 365                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_ino);
 366                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_mode);
 367                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_nlink);
 368                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_uid);
 369                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_gid);
 370                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_rdev);
 371                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_size);
 372 #  if !OLD_STAT
 373                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_blksize);
 374                 LOG_STAT_OFFSETOF_SIZEOF(*st, st_blocks);
 375 #  endif /* !OLD_STAT */
 376
 377 # endif /* IS_STATX */
 378
 379                 return 1;
 380         }
 381
 382         PRINT_SYSCALL_HEADER(sample);
 383         if (rc)
 384                 printf("%p", st);
 385         else
 386                 print_stat(st);
 387         PRINT_SYSCALL_FOOTER(rc);
 388
 389 # if IS_STATX
 390
 391 #  define INVOKE() \
 392         rc = TEST_SYSCALL_INVOKE(sample, st); \
 393         PRINT_SYSCALL_HEADER(sample); \
 394         if (rc) \
 395                 printf("%p", st); \
 396         else \
 397                 print_stat(st); \
 398         PRINT_SYSCALL_FOOTER(rc)
 399
 400 #  define SET_FLAGS_INVOKE(flags, flags_str) \
 401         TEST_SYSCALL_STATX_FLAGS = flags; \
 402         TEST_SYSCALL_STATX_FLAGS_STR = flags_str; \
 403         INVOKE()
 404
 405 #  define SET_MASK_INVOKE(mask, mask_str) \
 406         TEST_SYSCALL_STATX_MASK = mask; \
 407         TEST_SYSCALL_STATX_MASK_STR = mask_str; \
 408         INVOKE()
 409
 410         unsigned old_flags = TEST_SYSCALL_STATX_FLAGS;
 411         const char *old_flags_str = TEST_SYSCALL_STATX_FLAGS_STR;
 412         unsigned old_mask = TEST_SYSCALL_STATX_MASK;
 413         const char *old_mask_str = TEST_SYSCALL_STATX_MASK_STR;
 414
 415         SET_FLAGS_INVOKE(AT_SYMLINK_FOLLOW | 0xffff0000U,
 416                 "AT_STATX_SYNC_AS_STAT|AT_SYMLINK_FOLLOW|0xffff0000");
 417
 418         SET_FLAGS_INVOKE(AT_STATX_SYNC_TYPE,
 419                 "AT_STATX_FORCE_SYNC|AT_STATX_DONT_SYNC");
 420
 421         SET_FLAGS_INVOKE(0xffffff,
 422                 "AT_STATX_FORCE_SYNC|AT_STATX_DONT_SYNC|AT_SYMLINK_NOFOLLOW|"
 423                 "AT_REMOVEDIR|AT_SYMLINK_FOLLOW|AT_NO_AUTOMOUNT|AT_EMPTY_PATH|"
 424                 "0xff80ff");
 425
 426         /* We're done playing with flags. */
 427         TEST_SYSCALL_STATX_FLAGS = old_flags;
 428         TEST_SYSCALL_STATX_FLAGS_STR = old_flags_str;
 429
 430         SET_MASK_INVOKE(0, "0");
 431         SET_MASK_INVOKE(0xfffff000U, "0xfffff000 /* STATX_??? */");
 432
 433         SET_MASK_INVOKE(0xfffffffbU,
 434                 "STATX_TYPE|STATX_MODE|STATX_UID|STATX_GID|STATX_ATIME|"
 435                 "STATX_MTIME|STATX_CTIME|STATX_INO|STATX_SIZE|STATX_BLOCKS|"
 436                 "STATX_BTIME|0xfffff000");
 437
 438         SET_MASK_INVOKE(STATX_UID, "STATX_UID");
 439
 440         /* ...and with mask. */
 441         TEST_SYSCALL_STATX_MASK = old_mask;
 442         TEST_SYSCALL_STATX_MASK_STR = old_mask_str;
 443
 444 # endif /* IS_STATX */
 445
 446         puts("+++ exited with 0 +++");
 447         return 0;
 448 }
 449
 450 #else
 451
 452 SKIP_MAIN_UNDEFINED("HAVE_FTRUNCATE && HAVE_FUTIMENS")
 453
 454 #endif