| 1 | /*++ |
| 2 | |
| 3 | Copyright (c) Microsoft. All rights reserved. |
| 4 | |
| 5 | Module Name: |
| 6 | |
| 7 | lxtlog.c |
| 8 | |
| 9 | Abstract: |
| 10 | |
| 11 | This file contains lx test logging routines. |
| 12 | |
| 13 | --*/ |
| 14 | |
| 15 | #include "lxtutil.h" |
| 16 | #include "lxtlog.h" |
| 17 | #include <stdlib.h> |
| 18 | #include <stdio.h> |
| 19 | #include <unistd.h> |
| 20 | #include <errno.h> |
| 21 | #include <sched.h> |
| 22 | #include <linux/futex.h> |
| 23 | #include <sys/types.h> |
| 24 | #include <sys/wait.h> |
| 25 | #include <sys/socket.h> |
| 26 | #include <sys/syscall.h> |
| 27 | #include <sys/stat.h> |
| 28 | #include <sys/mman.h> |
| 29 | #include <sys/utsname.h> |
| 30 | #include <fcntl.h> |
| 31 | #include <dirent.h> |
| 32 | #include <signal.h> |
| 33 | |
| 34 | #define SIGNAL_WAIT_COUNT (20) |
| 35 | #define SIGNAL_WAIT_TIMEOUT_US (100000) |
| 36 | #define SIGNAL_MAX_SIGNALS (10) |
| 37 | #define SIGNAL_MAX_THREADS (5) |
| 38 | |
| 39 | typedef struct _LXT_SIGNAL_INFO |
| 40 | { |
| 41 | pid_t ThreadId; |
| 42 | int ReceivedSignal[SIGNAL_MAX_SIGNALS]; |
| 43 | siginfo_t SignalInfo[SIGNAL_MAX_SIGNALS]; |
| 44 | BOOLEAN AllowMultipleSignals; |
| 45 | int SignalCount; |
| 46 | } LXT_SIGNAL_INFO, *PLXT_SIGNAL_INFO; |
| 47 | |
| 48 | typedef struct _LXT_TYPE_MAPPING |
| 49 | { |
| 50 | char Type; |
| 51 | mode_t Mode; |
| 52 | } LXT_TYPE_MAPPING, *PLXT_TYPE_MAPPING; |
| 53 | |
| 54 | void LxtPrintPartialMemory(const unsigned char* Buffer, size_t Size, size_t BufferIndex, const char* Prefix); |
| 55 | |
| 56 | void LxtShowUsage(PCLXT_VARIATION Variations, unsigned int VariationCount); |
| 57 | |
| 58 | PLXT_SIGNAL_INFO |
| 59 | LxtSignalFindThreadInfo(void); |
| 60 | |
| 61 | void LxtSignalHandler(int Signal); |
| 62 | |
| 63 | void LxtSignalHandlerSigAction(int Signal, siginfo_t* SigInfo, void* UContext); |
| 64 | |
| 65 | // |
| 66 | // The multi-threaded signal tests require that information about the last |
| 67 | // signal received is stored per-thread, however using thread local storage |
| 68 | // is not safe in a signal handler (TLS support may take locks, if a signal |
| 69 | // arrives while the lock is held and the signal handler then tries to take |
| 70 | // the same lock, it leads to deadlock). Instead, an array is used that |
| 71 | // stores information for each thread. |
| 72 | // |
| 73 | |
| 74 | static LXT_SIGNAL_INFO g_ThreadSignalInfo[SIGNAL_MAX_THREADS]; |
| 75 | static int g_NextSignalThread = 0; |
| 76 | static LXT_TYPE_MAPPING g_TypeMapping[] = { |
| 77 | {DT_REG, S_IFREG}, {DT_DIR, S_IFDIR}, {DT_LNK, S_IFLNK}, {DT_FIFO, S_IFIFO}, {DT_SOCK, S_IFSOCK}, {DT_CHR, S_IFCHR}, {DT_BLK, S_IFBLK}}; |
| 78 | |
| 79 | static int g_WslVersion = 0; |
| 80 | |
| 81 | // |
| 82 | // Test framework code |
| 83 | // |
| 84 | |
| 85 | int LxtCheckDirectoryContents(const char* Path, const LXT_CHILD_INFO* Children, size_t Count) |
| 86 | |
| 87 | /*++ |
| 88 | |
| 89 | Description: |
| 90 | |
| 91 | This routine tests if the specified children are present in the directory. |
| 92 | |
| 93 | Arguments: |
| 94 | |
| 95 | Path - Supplies the path of the directory. |
| 96 | |
| 97 | Children - Supplies the list of expected children. |
| 98 | |
| 99 | Count - Supplies the number of children. |
| 100 | |
| 101 | Return Value: |
| 102 | |
| 103 | Returns 0 on success, -1 on failure. |
| 104 | |
| 105 | --*/ |
| 106 | |
| 107 | { |
| 108 | |
| 109 | return LxtCheckDirectoryContentsEx(Path, Children, Count, LXT_CHECK_DIRECTORY_CONTENTS_READ_FILES); |
| 110 | } |
| 111 | |
| 112 | int LxtCheckDirectoryContentsEx(const char* Path, const LXT_CHILD_INFO* Children, size_t Count, int Flags) |
| 113 | |
| 114 | /*++ |
| 115 | |
| 116 | Description: |
| 117 | |
| 118 | This routine tests if the specified children are present in the directory. |
| 119 | |
| 120 | Arguments: |
| 121 | |
| 122 | Path - Supplies the path of the directory. |
| 123 | |
| 124 | Children - Supplies the list of expected children. |
| 125 | |
| 126 | Count - Supplies the number of children. |
| 127 | |
| 128 | Flags - Supplies the flags. |
| 129 | |
| 130 | Return Value: |
| 131 | |
| 132 | Returns 0 on success, -1 on failure. |
| 133 | |
| 134 | --*/ |
| 135 | |
| 136 | { |
| 137 | |
| 138 | DIR* Directory; |
| 139 | struct dirent* Entry; |
| 140 | BOOLEAN* FoundEntries; |
| 141 | char FullPath[1024]; |
| 142 | size_t Index; |
| 143 | int Result; |
| 144 | struct stat Stat; |
| 145 | |
| 146 | FoundEntries = malloc(Count * sizeof(BOOLEAN)); |
| 147 | memset(FoundEntries, 0, Count * sizeof(BOOLEAN)); |
| 148 | Directory = opendir(Path); |
| 149 | if (Directory == NULL) |
| 150 | { |
| 151 | LxtLogError("opendir failed, errno: %d (%s)", errno, strerror(errno)); |
| 152 | Result = LXT_RESULT_FAILURE; |
| 153 | goto ErrorExit; |
| 154 | } |
| 155 | |
| 156 | errno = 0; |
| 157 | while ((Entry = readdir(Directory)) != NULL) |
| 158 | { |
| 159 | LxtLogInfo( |
| 160 | "Entry %p - d_name: %s d_ino: %llu d_type: %d d_off: %d d_reclen: %d", |
| 161 | Entry, |
| 162 | Entry->d_name, |
| 163 | Entry->d_ino, |
| 164 | Entry->d_type, |
| 165 | Entry->d_off, |
| 166 | Entry->d_reclen); |
| 167 | |
| 168 | for (Index = 0; Index < Count; Index += 1) |
| 169 | { |
| 170 | if (strcmp(Children[Index].Name, Entry->d_name) == 0) |
| 171 | { |
| 172 | if (FoundEntries[Index] != FALSE) |
| 173 | { |
| 174 | LxtLogError("Duplicate entry '%s'", Entry->d_name); |
| 175 | Result = LXT_RESULT_FAILURE; |
| 176 | goto ErrorExit; |
| 177 | } |
| 178 | |
| 179 | LxtCheckEqual(FoundEntries[Index], FALSE, "%d"); |
| 180 | LxtCheckGreater(Entry->d_ino, 0, "%llu"); |
| 181 | LxtCheckEqual(Entry->d_type, Children[Index].FileType, "%d"); |
| 182 | FoundEntries[Index] = TRUE; |
| 183 | strcpy(FullPath, Path); |
| 184 | strcat(FullPath, "/"); |
| 185 | strcat(FullPath, Entry->d_name); |
| 186 | LxtCheckResult(LxtCheckStat(FullPath, Entry->d_ino, Children[Index].FileType)); |
| 187 | |
| 188 | if ((Flags & LXT_CHECK_DIRECTORY_CONTENTS_READ_FILES) != 0) |
| 189 | { |
| 190 | LxtCheckResult(LxtCheckRead(FullPath, Children[Index].FileType)); |
| 191 | } |
| 192 | } |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | if (errno != 0) |
| 197 | { |
| 198 | LxtLogError("readdir failed; errno: %d (%s)", errno, strerror(errno)); |
| 199 | Result = LXT_RESULT_FAILURE; |
| 200 | goto ErrorExit; |
| 201 | } |
| 202 | |
| 203 | // |
| 204 | // Check if all the required entries have been found. |
| 205 | // |
| 206 | |
| 207 | for (Index = 0; Index < Count; Index += 1) |
| 208 | { |
| 209 | if (FoundEntries[Index] == FALSE) |
| 210 | { |
| 211 | LxtLogError("Entry '%s' is missing", Children[Index].Name); |
| 212 | Result = LXT_RESULT_FAILURE; |
| 213 | goto ErrorExit; |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | Result = LXT_RESULT_SUCCESS; |
| 218 | |
| 219 | ErrorExit: |
| 220 | if (Directory != NULL) |
| 221 | { |
| 222 | closedir(Directory); |
| 223 | } |
| 224 | |
| 225 | if (FoundEntries != NULL) |
| 226 | { |
| 227 | free(FoundEntries); |
| 228 | } |
| 229 | |
| 230 | return Result; |
| 231 | } |
| 232 | |
| 233 | int LxtCheckFdPath(int Fd, char* ExpectedPath) |
| 234 | |
| 235 | /*++ |
| 236 | |
| 237 | Description: |
| 238 | |
| 239 | This routine checks if the file descriptor has the specified path. |
| 240 | |
| 241 | Arguments: |
| 242 | |
| 243 | Fd - Supplies the file descriptor. |
| 244 | |
| 245 | ExpectedPath - Supplies the expected path. |
| 246 | |
| 247 | Return Value: |
| 248 | |
| 249 | Returns 0 on success, -1 on failure. |
| 250 | |
| 251 | --*/ |
| 252 | |
| 253 | { |
| 254 | |
| 255 | char ProcFsPath[PATH_MAX]; |
| 256 | char Path[PATH_MAX]; |
| 257 | int Result; |
| 258 | |
| 259 | sprintf(ProcFsPath, "/proc/self/fd/%d", Fd); |
| 260 | LxtCheckResult(LxtCheckLinkTarget(ProcFsPath, ExpectedPath)); |
| 261 | |
| 262 | ErrorExit: |
| 263 | return Result; |
| 264 | } |
| 265 | |
| 266 | int LxtCheckLinkTarget(const char* Path, const char* ExpectedTarget) |
| 267 | |
| 268 | /*++ |
| 269 | |
| 270 | Description: |
| 271 | |
| 272 | This routine tests the target of the specified link. |
| 273 | |
| 274 | Arguments: |
| 275 | |
| 276 | Path - Supplies the path of the link. |
| 277 | |
| 278 | ExpectedTarget - Supplies the expected target of the link. |
| 279 | |
| 280 | Return Value: |
| 281 | |
| 282 | Returns 0 on success, -1 on failure. |
| 283 | |
| 284 | --*/ |
| 285 | |
| 286 | { |
| 287 | |
| 288 | char Buffer[256] = {0}; |
| 289 | int Result; |
| 290 | ssize_t Size; |
| 291 | |
| 292 | LxtCheckErrno(Size = readlink(Path, Buffer, sizeof(Buffer))); |
| 293 | LxtCheckEqual((size_t)Size, strlen(Buffer), "%d"); |
| 294 | LxtCheckStringEqual(ExpectedTarget, Buffer); |
| 295 | |
| 296 | ErrorExit: |
| 297 | return Result; |
| 298 | } |
| 299 | |
| 300 | int LxtCheckRead(const char* FullPath, unsigned char FileType) |
| 301 | |
| 302 | /*++ |
| 303 | |
| 304 | Description: |
| 305 | |
| 306 | This routine checks that the specified file can be read. |
| 307 | |
| 308 | N.B. This only checks that the file can be opened and read, it doesn't |
| 309 | check if the contents match what's expected. Write additional tests |
| 310 | for a specific file if necessary. |
| 311 | |
| 312 | Arguments: |
| 313 | |
| 314 | FullPath - Supplies the full path of the file or directory. |
| 315 | |
| 316 | FileType - Supplies the file type. |
| 317 | |
| 318 | Return Value: |
| 319 | |
| 320 | Returns 0 on success, -1 on failure. |
| 321 | |
| 322 | --*/ |
| 323 | |
| 324 | { |
| 325 | |
| 326 | char Buffer[1024]; |
| 327 | int Fd; |
| 328 | int Result; |
| 329 | ssize_t Size; |
| 330 | struct stat Stat; |
| 331 | |
| 332 | Fd = 0; |
| 333 | switch (FileType) |
| 334 | { |
| 335 | case DT_REG: |
| 336 | |
| 337 | // |
| 338 | // Skip files that aren't readable. |
| 339 | // |
| 340 | |
| 341 | LxtCheckErrnoZeroSuccess(lstat(FullPath, &Stat)); |
| 342 | if ((Stat.st_mode & S_IRUSR) == 0) |
| 343 | { |
| 344 | Result = LXT_RESULT_SUCCESS; |
| 345 | goto ErrorExit; |
| 346 | } |
| 347 | |
| 348 | LxtCheckErrno(Fd = open(FullPath, O_RDONLY)); |
| 349 | LxtCheckErrno(Size = read(Fd, Buffer, sizeof(Buffer))); |
| 350 | LxtCheckGreater(Size, 0, "%d"); |
| 351 | break; |
| 352 | |
| 353 | case DT_LNK: |
| 354 | LxtCheckErrno(Size = readlink(FullPath, Buffer, sizeof(Buffer))); |
| 355 | LxtCheckGreater(Size, 0, "%d"); |
| 356 | break; |
| 357 | |
| 358 | case DT_DIR: |
| 359 | |
| 360 | // |
| 361 | // Nothing to check. |
| 362 | // |
| 363 | |
| 364 | Result = LXT_RESULT_SUCCESS; |
| 365 | break; |
| 366 | |
| 367 | default: |
| 368 | LxtLogError("Unexpected file type %d", FileType); |
| 369 | Result = LXT_RESULT_FAILURE; |
| 370 | break; |
| 371 | } |
| 372 | |
| 373 | ErrorExit: |
| 374 | if (Result < 0) |
| 375 | { |
| 376 | LxtLogError("Error reading %s", FullPath); |
| 377 | } |
| 378 | |
| 379 | if (Fd > 0) |
| 380 | { |
| 381 | close(Fd); |
| 382 | } |
| 383 | |
| 384 | return Result; |
| 385 | } |
| 386 | |
| 387 | int LxtCheckStat(const char* FullPath, unsigned long long ExpectedInode, unsigned char FileType) |
| 388 | |
| 389 | /*++ |
| 390 | |
| 391 | Description: |
| 392 | |
| 393 | This routine checks the stat information for a file or directory. |
| 394 | |
| 395 | Arguments: |
| 396 | |
| 397 | FullPath - Supplies the full path of the file or directory. |
| 398 | |
| 399 | ExpectedInode - Supplies the expected inode number. |
| 400 | |
| 401 | FileType - Supplies the file type. |
| 402 | |
| 403 | Return Value: |
| 404 | |
| 405 | Returns 0 on success, -1 on failure. |
| 406 | |
| 407 | --*/ |
| 408 | |
| 409 | { |
| 410 | |
| 411 | int Index; |
| 412 | int Result; |
| 413 | struct stat Stat; |
| 414 | |
| 415 | LxtCheckErrnoZeroSuccess(lstat(FullPath, &Stat)); |
| 416 | LxtCheckEqual(Stat.st_ino, ExpectedInode, "%llu"); |
| 417 | LxtCheckGreater(Stat.st_nlink, 0, "%ud"); |
| 418 | for (Index = 0; Index < LXT_COUNT_OF(g_TypeMapping); Index += 1) |
| 419 | { |
| 420 | if (g_TypeMapping[Index].Type == FileType) |
| 421 | { |
| 422 | LxtCheckEqual((Stat.st_mode & S_IFMT), g_TypeMapping[Index].Mode, "0%o"); |
| 423 | |
| 424 | break; |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | if (Index == LXT_COUNT_OF(g_TypeMapping)) |
| 429 | { |
| 430 | LxtLogError("Unexpected file type %d", FileType); |
| 431 | Result = LXT_RESULT_FAILURE; |
| 432 | goto ErrorExit; |
| 433 | } |
| 434 | |
| 435 | ErrorExit: |
| 436 | return Result; |
| 437 | } |
| 438 | |
| 439 | int LxtCheckWrite(const char* FullPath, const char* Value) |
| 440 | |
| 441 | /*++ |
| 442 | |
| 443 | Description: |
| 444 | |
| 445 | This routine checks that the specified file can be written to. |
| 446 | |
| 447 | N.B. This function is meant for writable files in /proc and /sys. It's |
| 448 | primarily used for files that currently don't have a real write |
| 449 | implementation (which allow but silently ignore the write) since the |
| 450 | effects of the write are not checked. |
| 451 | |
| 452 | Arguments: |
| 453 | |
| 454 | FullPath - Supplies the full path of the file or directory. |
| 455 | |
| 456 | FileType - Supplies the file type. |
| 457 | |
| 458 | Return Value: |
| 459 | |
| 460 | Returns 0 on success, -1 on failure. |
| 461 | |
| 462 | --*/ |
| 463 | |
| 464 | { |
| 465 | |
| 466 | ssize_t BytesWritten; |
| 467 | int Fd; |
| 468 | int Result; |
| 469 | |
| 470 | LxtCheckErrno(Fd = open(FullPath, O_WRONLY)); |
| 471 | LxtCheckErrno(BytesWritten = write(Fd, Value, strlen(Value))); |
| 472 | LxtCheckEqual((size_t)BytesWritten, strlen(Value), "%d"); |
| 473 | |
| 474 | ErrorExit: |
| 475 | if (Result < 0) |
| 476 | { |
| 477 | LxtLogError("Error writing %s", FullPath); |
| 478 | } |
| 479 | |
| 480 | if (Fd > 0) |
| 481 | { |
| 482 | close(Fd); |
| 483 | } |
| 484 | |
| 485 | return Result; |
| 486 | } |
| 487 | |
| 488 | int LxtCheckWslPathTranslation(char* Path, const char* ExpectedPath, bool WinPath) |
| 489 | |
| 490 | /*++ |
| 491 | |
| 492 | Description: |
| 493 | |
| 494 | This routine checks whether translating a path with wslpath matches the |
| 495 | specified result. Pass NULL as ExpectedPath to assert that wslpath fails |
| 496 | to translate the path. |
| 497 | |
| 498 | Arguments: |
| 499 | |
| 500 | Path - Supplies the path to translate. |
| 501 | |
| 502 | ExpectedPath - Supplies the expected translated path, or NULL to assert |
| 503 | that wslpath fails. |
| 504 | |
| 505 | WinPath - Supplies a value that indicates whether the specified path is a |
| 506 | Windows path. When true, the expected path must be a Linux path and |
| 507 | vice versa. |
| 508 | |
| 509 | Return Value: |
| 510 | |
| 511 | Returns 0 on success, -1 on failure. |
| 512 | |
| 513 | --*/ |
| 514 | |
| 515 | { |
| 516 | |
| 517 | int Result; |
| 518 | char TranslatedPath[4096]; |
| 519 | |
| 520 | LxtCheckResult(LxtExecuteWslPath(Path, WinPath, TranslatedPath, sizeof(TranslatedPath), ExpectedPath == NULL ? 1 : 0)); |
| 521 | if (ExpectedPath == NULL) |
| 522 | { |
| 523 | LxtLogInfo("%s => (failed as expected)", Path); |
| 524 | } |
| 525 | else |
| 526 | { |
| 527 | LxtCheckStringEqual(ExpectedPath, TranslatedPath); |
| 528 | LxtLogInfo("%s => %s", Path, TranslatedPath); |
| 529 | } |
| 530 | |
| 531 | ErrorExit: |
| 532 | return Result; |
| 533 | } |
| 534 | |
| 535 | int LxtExecuteAndReadOutput(char** Argv, char* OutputBuffer, size_t OutputBufferSize, int ExpectedExitCode) |
| 536 | |
| 537 | /*++ |
| 538 | |
| 539 | Description: |
| 540 | |
| 541 | This routine runs an executable, and reads stdout into the specified buffer. |
| 542 | |
| 543 | N.B. If the process produces more output than fits in the buffer, this |
| 544 | function will fail. |
| 545 | |
| 546 | Arguments: |
| 547 | |
| 548 | Argv - Supplies the arguments to pass to the executable. The first element |
| 549 | is the executable to run. |
| 550 | |
| 551 | OutputBuffer - Supplies the buffer to hold the process's stdout. |
| 552 | |
| 553 | OutputBufferSize - Supplies the size of the output buffer. |
| 554 | |
| 555 | ExpectedExitCode - Supplies the expected exit code of the child process. |
| 556 | |
| 557 | Return Value: |
| 558 | |
| 559 | Returns 0 on success, -1 on failure. |
| 560 | |
| 561 | --*/ |
| 562 | |
| 563 | { |
| 564 | |
| 565 | ssize_t BytesRead; |
| 566 | pid_t ChildPid; |
| 567 | int Result; |
| 568 | LXT_PIPE Pipe = {-1, -1}; |
| 569 | |
| 570 | LxtCheckResult(LxtCreatePipe(&Pipe)); |
| 571 | LxtCheckErrno(ChildPid = fork()); |
| 572 | if (ChildPid == 0) |
| 573 | { |
| 574 | LxtCheckClose(Pipe.Read); |
| 575 | LxtCheckErrno(dup2(Pipe.Write, STDOUT_FILENO)); |
| 576 | LxtCheckClose(Pipe.Write); |
| 577 | LxtCheckErrno(execve(Argv[0], Argv, environ)); |
| 578 | _exit(LXT_RESULT_FAILURE); |
| 579 | } |
| 580 | |
| 581 | LxtCheckClose(Pipe.Write); |
| 582 | while ((BytesRead = read(Pipe.Read, OutputBuffer, OutputBufferSize)) > 0) |
| 583 | { |
| 584 | OutputBuffer += BytesRead; |
| 585 | OutputBufferSize -= BytesRead; |
| 586 | LxtCheckGreater(OutputBufferSize, 0, "%lu"); |
| 587 | } |
| 588 | |
| 589 | // |
| 590 | // Make sure the result did not exceed the buffer size and NULL-terminate |
| 591 | // it. |
| 592 | // |
| 593 | |
| 594 | LxtCheckErrnoZeroSuccess(BytesRead); |
| 595 | LxtCheckGreater(OutputBufferSize, BytesRead, "%lu"); |
| 596 | OutputBuffer[BytesRead] = '\0'; |
| 597 | |
| 598 | // |
| 599 | // Make sure the executable exited with the expected status. |
| 600 | // |
| 601 | |
| 602 | LxtCheckResult(LxtWaitPidPoll(ChildPid, ExpectedExitCode << 8)); |
| 603 | |
| 604 | ErrorExit: |
| 605 | LxtClosePipe(&Pipe); |
| 606 | |
| 607 | return Result; |
| 608 | } |
| 609 | |
| 610 | int LxtExecuteWslPath(char* Path, bool WinPath, char* OutputBuffer, size_t OutputBufferSize, int ExpectedExitCode) |
| 611 | |
| 612 | /*++ |
| 613 | |
| 614 | Description: |
| 615 | |
| 616 | This routine runs wslpath, and reads stdout into the specified buffer. |
| 617 | |
| 618 | N.B. If the process produces more output than fits in the buffer, this |
| 619 | function will fail. |
| 620 | |
| 621 | Arguments: |
| 622 | |
| 623 | Path - Supplies the path to translate. |
| 624 | |
| 625 | WinPath - Supplies a value that indicates whether the specified path is a |
| 626 | Windows path. When true, the output will be a Linux path and vice versa. |
| 627 | |
| 628 | OutputBuffer - Supplies the buffer to hold the process's stdout. |
| 629 | |
| 630 | OutputBufferSize - Supplies the size of the output buffer. |
| 631 | |
| 632 | ExpectedExitCode - Supplies the expected exit code of wslpath. Pass 1 when |
| 633 | the translation is expected to fail. |
| 634 | |
| 635 | Return Value: |
| 636 | |
| 637 | Returns 0 on success, -1 on failure. |
| 638 | |
| 639 | --*/ |
| 640 | |
| 641 | { |
| 642 | |
| 643 | char* Argv[4]; |
| 644 | int Index = 0; |
| 645 | int Result; |
| 646 | size_t OutputLength; |
| 647 | |
| 648 | // |
| 649 | // Construct the arguments to invoke wslpath. |
| 650 | // |
| 651 | |
| 652 | Argv[Index++] = "/bin/wslpath"; |
| 653 | if (WinPath == false) |
| 654 | { |
| 655 | Argv[Index++] = "-w"; |
| 656 | } |
| 657 | |
| 658 | Argv[Index++] = Path; |
| 659 | Argv[Index] = NULL; |
| 660 | |
| 661 | // |
| 662 | // Execute wslpath. |
| 663 | // |
| 664 | |
| 665 | LxtCheckResult(LxtExecuteAndReadOutput(Argv, OutputBuffer, OutputBufferSize, ExpectedExitCode)); |
| 666 | |
| 667 | // |
| 668 | // Wslpath outputs a new line at the end. Strip it to make things easier on |
| 669 | // the caller. |
| 670 | // |
| 671 | |
| 672 | OutputLength = strlen(OutputBuffer); |
| 673 | if ((OutputLength > 0) && (OutputBuffer[OutputLength - 1] == '\n')) |
| 674 | { |
| 675 | OutputBuffer[OutputLength - 1] = '\0'; |
| 676 | } |
| 677 | |
| 678 | ErrorExit: |
| 679 | return Result; |
| 680 | } |
| 681 | |
| 682 | int LxtInitialize(int Argc, char* Argv[], PLXT_ARGS Args, const char* TestName) |
| 683 | |
| 684 | /*++ |
| 685 | --*/ |
| 686 | |
| 687 | { |
| 688 | |
| 689 | int Opt; |
| 690 | int OriginalOptErr; |
| 691 | int Result; |
| 692 | |
| 693 | // |
| 694 | // Set umask to 0 so files created by tests have the expected permissions. |
| 695 | // |
| 696 | |
| 697 | Result = umask(0); |
| 698 | if (Result < 0) |
| 699 | { |
| 700 | LxtLogError("umask failed %d", errno); |
| 701 | goto ErrorExit; |
| 702 | } |
| 703 | |
| 704 | // |
| 705 | // Parse the command line, ignore unrecognized options since variations can |
| 706 | // specify their own options, and initialize logging. |
| 707 | // |
| 708 | |
| 709 | Args->LogType = LXT_LOG_TYPE_DEFAULT_MASK; |
| 710 | Args->LogAppend = false; |
| 711 | Args->HelpRequested = false; |
| 712 | Args->VariationMask = -1; |
| 713 | Args->Argc = Argc; |
| 714 | Args->Argv = Argv; |
| 715 | OriginalOptErr = opterr; |
| 716 | opterr = 0; |
| 717 | while ((Opt = getopt(Argc, Argv, "l:v:a:h")) != LXT_RESULT_FAILURE) |
| 718 | { |
| 719 | switch (Opt) |
| 720 | { |
| 721 | case 'a': |
| 722 | Args->LogAppend = true; |
| 723 | break; |
| 724 | |
| 725 | case 'l': |
| 726 | Args->LogType = atoi(optarg); |
| 727 | if (Args->LogType >= LxtLogTypeMax) |
| 728 | { |
| 729 | Result = LXT_RESULT_FAILURE; |
| 730 | LxtLogError("Invalid LxtLogType %d", Args->LogType); |
| 731 | goto ErrorExit; |
| 732 | } |
| 733 | |
| 734 | break; |
| 735 | |
| 736 | case 'v': |
| 737 | Args->VariationMask = atoll(optarg); |
| 738 | break; |
| 739 | |
| 740 | case 'h': |
| 741 | Args->HelpRequested = true; |
| 742 | break; |
| 743 | } |
| 744 | } |
| 745 | |
| 746 | opterr = OriginalOptErr; |
| 747 | Result = LxtLogInitialize(TestName, Args->LogType, Args->LogAppend); |
| 748 | |
| 749 | ErrorExit: |
| 750 | return Result; |
| 751 | } |
| 752 | |
| 753 | int LxtRunVariations(PLXT_ARGS Args, PCLXT_VARIATION Variations, unsigned int VariationCount) |
| 754 | |
| 755 | /*++ |
| 756 | --*/ |
| 757 | |
| 758 | { |
| 759 | |
| 760 | unsigned int Itr; |
| 761 | unsigned long long ThisVariation; |
| 762 | int Result; |
| 763 | |
| 764 | Result = LXT_RESULT_FAILURE; |
| 765 | if (Args->HelpRequested != false) |
| 766 | { |
| 767 | LxtShowUsage(Variations, VariationCount); |
| 768 | LxtLogError("No tests executed."); |
| 769 | goto ErrorExit; |
| 770 | } |
| 771 | |
| 772 | for (Itr = 0; Itr < VariationCount; Itr++) |
| 773 | { |
| 774 | ThisVariation = (1ull << Itr); |
| 775 | |
| 776 | // |
| 777 | // TODO: Currently, variation mask is only supported for the first 64 |
| 778 | // variations. |
| 779 | // |
| 780 | |
| 781 | if ((Args->VariationMask != 0) && ((ThisVariation & Args->VariationMask) == 0)) |
| 782 | { |
| 783 | |
| 784 | continue; |
| 785 | } |
| 786 | |
| 787 | LxtLogStart("%s", Variations[Itr].Name); |
| 788 | Result = Variations[Itr].Variation(Args); |
| 789 | if (LXT_SUCCESS(Result) == 0) |
| 790 | { |
| 791 | LxtLogError("%s", Variations[Itr].Name); |
| 792 | goto ErrorExit; |
| 793 | } |
| 794 | |
| 795 | LxtLogPassed("%s", Variations[Itr].Name); |
| 796 | } |
| 797 | |
| 798 | ErrorExit: |
| 799 | return Result; |
| 800 | } |
| 801 | |
| 802 | int LxtRunVariationsForked(PLXT_ARGS Args, PCLXT_VARIATION Variations, unsigned int VariationCount) |
| 803 | |
| 804 | /*++ |
| 805 | |
| 806 | Routine Description: |
| 807 | |
| 808 | This routine runs test variations, with each variation executing in its |
| 809 | own child process. Use this function if a test may change process state |
| 810 | that interferes with other tests. |
| 811 | |
| 812 | Arguments: |
| 813 | |
| 814 | Args - Supplies the command line arguments. |
| 815 | |
| 816 | Variations - Supplies a pointer to an array of variations. |
| 817 | |
| 818 | VariationCount - Supplies the number items in the variations array. |
| 819 | |
| 820 | Return Value: |
| 821 | |
| 822 | Returns 0 on success, -1 on failure. |
| 823 | |
| 824 | --*/ |
| 825 | |
| 826 | { |
| 827 | |
| 828 | int ChildPid; |
| 829 | unsigned int Itr; |
| 830 | unsigned long long ThisVariation; |
| 831 | int Result; |
| 832 | |
| 833 | ChildPid = -1; |
| 834 | Result = LXT_RESULT_FAILURE; |
| 835 | if (Args->HelpRequested != false) |
| 836 | { |
| 837 | LxtShowUsage(Variations, VariationCount); |
| 838 | LxtLogError("No tests executed."); |
| 839 | goto ErrorExit; |
| 840 | } |
| 841 | |
| 842 | for (Itr = 0; Itr < VariationCount; Itr++) |
| 843 | { |
| 844 | ThisVariation = (1ull << Itr); |
| 845 | |
| 846 | // |
| 847 | // TODO: Currently, variation mask is only supported for the first 64 |
| 848 | // variations. |
| 849 | // |
| 850 | |
| 851 | if ((Args->VariationMask != 0) && ((ThisVariation & Args->VariationMask) == 0)) |
| 852 | { |
| 853 | |
| 854 | continue; |
| 855 | } |
| 856 | |
| 857 | LxtCheckResult(ChildPid = fork()); |
| 858 | if (ChildPid == 0) |
| 859 | { |
| 860 | LxtLogStart("%s", Variations[Itr].Name); |
| 861 | Result = Variations[Itr].Variation(Args); |
| 862 | if (LXT_SUCCESS(Result) == 0) |
| 863 | { |
| 864 | LxtLogError("%s", Variations[Itr].Name); |
| 865 | goto ErrorExit; |
| 866 | } |
| 867 | |
| 868 | LxtLogPassed("%s", Variations[Itr].Name); |
| 869 | _exit(0); |
| 870 | } |
| 871 | |
| 872 | Result = LxtWaitPidPollOptions(ChildPid, 0, 0, 120); |
| 873 | if (Result < 0) |
| 874 | { |
| 875 | LxtLogError("Test execution timed out."); |
| 876 | kill(ChildPid, SIGKILL); |
| 877 | Result = LXT_RESULT_FAILURE; |
| 878 | goto ErrorExit; |
| 879 | } |
| 880 | } |
| 881 | |
| 882 | ErrorExit: |
| 883 | if (ChildPid == 0) |
| 884 | { |
| 885 | _exit(Result); |
| 886 | } |
| 887 | |
| 888 | return Result; |
| 889 | } |
| 890 | |
| 891 | void LxtUninitialize(void) |
| 892 | |
| 893 | /*++ |
| 894 | --*/ |
| 895 | |
| 896 | { |
| 897 | |
| 898 | LxtLogUninitialize(); |
| 899 | return; |
| 900 | } |
| 901 | |
| 902 | // |
| 903 | // stdlib wrappers |
| 904 | // |
| 905 | |
| 906 | void* LxtAlloc(size_t Size) |
| 907 | |
| 908 | /*++ |
| 909 | --*/ |
| 910 | |
| 911 | { |
| 912 | |
| 913 | void* Allocation; |
| 914 | |
| 915 | Allocation = malloc(Size); |
| 916 | if (Allocation == NULL) |
| 917 | { |
| 918 | LxtLogResourceError("malloc failed for size %d", Size); |
| 919 | } |
| 920 | |
| 921 | return Allocation; |
| 922 | } |
| 923 | |
| 924 | void LxtFree(void* Allocation) |
| 925 | |
| 926 | /*++ |
| 927 | --*/ |
| 928 | |
| 929 | { |
| 930 | |
| 931 | free(Allocation); |
| 932 | return; |
| 933 | } |
| 934 | |
| 935 | // |
| 936 | // syscall wrappers |
| 937 | // |
| 938 | |
| 939 | #define LXT_WAITPID_WAIT_TIMEOUT_US 100000 |
| 940 | #define LXT_MESSAGE_WAIT_TIMEOUT_US 100000 |
| 941 | #define LXT_MESSAGE_WAIT_COUNT 20 |
| 942 | |
| 943 | int LxtClone(int (*Entry)(void* Parameter), void* Parameter, int Flags, PLXT_CLONE_ARGS Args) |
| 944 | |
| 945 | /*++ |
| 946 | --*/ |
| 947 | |
| 948 | { |
| 949 | |
| 950 | char* ChildStack; |
| 951 | int Result; |
| 952 | |
| 953 | Args->Stack = LxtAlloc(LXT_CLONE_STACK_SIZE); |
| 954 | if (Args->Stack == NULL) |
| 955 | { |
| 956 | Result = LXT_RESULT_FAILURE; |
| 957 | goto ErrorExit; |
| 958 | } |
| 959 | |
| 960 | memset(Args->Stack, 0, LXT_CLONE_STACK_SIZE); |
| 961 | ChildStack = Args->Stack + LXT_CLONE_STACK_SIZE; |
| 962 | LxtCheckErrno(Args->CloneId = clone(Entry, ChildStack, Flags, Parameter, 0, 0, 0)); |
| 963 | |
| 964 | ErrorExit: |
| 965 | if (LXT_SUCCESS(Result) == 0) |
| 966 | { |
| 967 | LxtFree(Args->Stack); |
| 968 | Args->Stack = NULL; |
| 969 | } |
| 970 | |
| 971 | return Result; |
| 972 | } |
| 973 | |
| 974 | int LxtClosePipe(PLXT_PIPE Pipe) |
| 975 | |
| 976 | /*++ |
| 977 | --*/ |
| 978 | |
| 979 | { |
| 980 | |
| 981 | int Result; |
| 982 | |
| 983 | if (Pipe->Read != -1) |
| 984 | { |
| 985 | LxtCheckErrno(close(Pipe->Read)); |
| 986 | Pipe->Read = -1; |
| 987 | } |
| 988 | |
| 989 | if (Pipe->Write != -1) |
| 990 | { |
| 991 | LxtCheckErrno(close(Pipe->Write)); |
| 992 | Pipe->Write = -1; |
| 993 | } |
| 994 | |
| 995 | Result = 0; |
| 996 | |
| 997 | ErrorExit: |
| 998 | return Result; |
| 999 | } |
| 1000 | |
| 1001 | int LxtCompareMemory(const void* First, const void* Second, size_t Size, const char* FirstDescription, const char* SecondDescription) |
| 1002 | |
| 1003 | /*++ |
| 1004 | |
| 1005 | Routine Description: |
| 1006 | |
| 1007 | This routine compares two memory locations, and if they are different logs |
| 1008 | information about where they are different. |
| 1009 | |
| 1010 | Arguments: |
| 1011 | |
| 1012 | First - Supplies the address of the first memory location. |
| 1013 | |
| 1014 | Second - Supplies the address of the second memory location. |
| 1015 | |
| 1016 | Size - Supplies the size of the memory locations. |
| 1017 | |
| 1018 | FirstDescription - Supplies the description of the first memory location. |
| 1019 | |
| 1020 | SecondDescription - Supplies the description of the second memory location. |
| 1021 | |
| 1022 | Return Value: |
| 1023 | |
| 1024 | Returns 0 on success, -1 on failure. |
| 1025 | |
| 1026 | --*/ |
| 1027 | |
| 1028 | { |
| 1029 | |
| 1030 | size_t End; |
| 1031 | const unsigned char* FirstBytes; |
| 1032 | size_t DifferentIndex; |
| 1033 | size_t Index; |
| 1034 | int Result; |
| 1035 | const unsigned char* SecondBytes; |
| 1036 | |
| 1037 | Result = LXT_RESULT_SUCCESS; |
| 1038 | FirstBytes = First; |
| 1039 | SecondBytes = Second; |
| 1040 | for (Index = 0; Index < Size; Index += 1) |
| 1041 | { |
| 1042 | if (FirstBytes[Index] != SecondBytes[Index]) |
| 1043 | { |
| 1044 | Result = LXT_RESULT_FAILURE; |
| 1045 | break; |
| 1046 | } |
| 1047 | } |
| 1048 | |
| 1049 | if (Result != LXT_RESULT_SUCCESS) |
| 1050 | { |
| 1051 | LxtLogError( |
| 1052 | "Memory contents of '%s' [1] differ from '%s' [2] at " |
| 1053 | "offset %ld", |
| 1054 | FirstDescription, |
| 1055 | SecondDescription, |
| 1056 | Index); |
| 1057 | |
| 1058 | LxtPrintPartialMemory(FirstBytes, Size, Index, "[1]:"); |
| 1059 | LxtPrintPartialMemory(SecondBytes, Size, Index, "[2]:"); |
| 1060 | } |
| 1061 | |
| 1062 | return Result; |
| 1063 | } |
| 1064 | |
| 1065 | int LxtCopyFile(const char* Source, const char* Destination) |
| 1066 | |
| 1067 | /*++ |
| 1068 | |
| 1069 | Description: |
| 1070 | |
| 1071 | This routine copies a file. |
| 1072 | |
| 1073 | Arguments: |
| 1074 | |
| 1075 | Source - Supplies the source. |
| 1076 | |
| 1077 | Destination - Supplies the destination. |
| 1078 | |
| 1079 | Return Value: |
| 1080 | |
| 1081 | Returns 0 on success, -1 on failure. |
| 1082 | |
| 1083 | --*/ |
| 1084 | |
| 1085 | { |
| 1086 | |
| 1087 | char Buffer[4096]; |
| 1088 | ssize_t BytesRead; |
| 1089 | int FdDest; |
| 1090 | int FdSource; |
| 1091 | int Result; |
| 1092 | struct stat Stat; |
| 1093 | |
| 1094 | FdDest = -1; |
| 1095 | FdSource = -1; |
| 1096 | LxtCheckErrno(FdSource = open(Source, O_RDONLY)); |
| 1097 | LxtCheckErrnoZeroSuccess(fstat(FdSource, &Stat)); |
| 1098 | LxtCheckErrno(FdDest = creat(Destination, Stat.st_mode & ~S_IFMT)); |
| 1099 | do |
| 1100 | { |
| 1101 | LxtCheckErrno(BytesRead = read(FdSource, Buffer, sizeof(Buffer))); |
| 1102 | if (BytesRead > 0) |
| 1103 | { |
| 1104 | LxtCheckErrno(write(FdDest, Buffer, BytesRead)); |
| 1105 | } |
| 1106 | } while (BytesRead > 0); |
| 1107 | |
| 1108 | ErrorExit: |
| 1109 | if (FdDest >= 0) |
| 1110 | { |
| 1111 | close(FdDest); |
| 1112 | } |
| 1113 | |
| 1114 | if (FdSource >= 0) |
| 1115 | { |
| 1116 | close(FdSource); |
| 1117 | } |
| 1118 | |
| 1119 | return Result; |
| 1120 | } |
| 1121 | |
| 1122 | int LxtCreatePipe(PLXT_PIPE Pipe) |
| 1123 | |
| 1124 | /*++ |
| 1125 | --*/ |
| 1126 | |
| 1127 | { |
| 1128 | |
| 1129 | int Result; |
| 1130 | |
| 1131 | memset(Pipe, -1, sizeof(*Pipe)); |
| 1132 | LxtCheckErrno(pipe((int*)Pipe)); |
| 1133 | |
| 1134 | ErrorExit: |
| 1135 | return Result; |
| 1136 | } |
| 1137 | |
| 1138 | int LxtJoinThread(pid_t* Tid) |
| 1139 | |
| 1140 | { |
| 1141 | |
| 1142 | pid_t CurrentTid; |
| 1143 | |
| 1144 | while ((CurrentTid = *(volatile pid_t*)Tid) != 0) |
| 1145 | { |
| 1146 | if (syscall(SYS_futex, Tid, FUTEX_WAIT, CurrentTid, NULL, NULL, 0) < 0 && errno != EAGAIN) |
| 1147 | { |
| 1148 | return -1; |
| 1149 | } |
| 1150 | } |
| 1151 | |
| 1152 | return 0; |
| 1153 | } |
| 1154 | |
| 1155 | int LxtReceiveMessage(int Socket, const char* ExpectedMessage) |
| 1156 | |
| 1157 | /*++ |
| 1158 | |
| 1159 | Routine Description: |
| 1160 | |
| 1161 | This routine receives a message from a socket and checks if it was the |
| 1162 | expected message |
| 1163 | |
| 1164 | Arguments: |
| 1165 | |
| 1166 | Socket - Supplies a file descriptor for the socket to send on. |
| 1167 | |
| 1168 | ExpectedMessage - Supplies a pointer to a zero-terminated string containing |
| 1169 | the expected message. |
| 1170 | |
| 1171 | Return Value: |
| 1172 | |
| 1173 | Returns 0 on success, -1 on failure. |
| 1174 | |
| 1175 | --*/ |
| 1176 | |
| 1177 | { |
| 1178 | |
| 1179 | int ExpectedMessageSize; |
| 1180 | char Message[100]; |
| 1181 | int MessageSize; |
| 1182 | int Result; |
| 1183 | int WaitCount; |
| 1184 | |
| 1185 | ExpectedMessageSize = strlen(ExpectedMessage); |
| 1186 | memset(Message, 0, sizeof(Message)); |
| 1187 | for (WaitCount = 0; WaitCount < LXT_MESSAGE_WAIT_COUNT; WaitCount += 1) |
| 1188 | { |
| 1189 | MessageSize = recv(Socket, Message, sizeof(Message), MSG_DONTWAIT); |
| 1190 | if (MessageSize >= 0 || (errno != EAGAIN && errno != EWOULDBLOCK)) |
| 1191 | { |
| 1192 | break; |
| 1193 | } |
| 1194 | |
| 1195 | usleep(LXT_MESSAGE_WAIT_TIMEOUT_US); |
| 1196 | } |
| 1197 | |
| 1198 | if (WaitCount == LXT_MESSAGE_WAIT_COUNT) |
| 1199 | { |
| 1200 | LxtLogError("Receiving the message timed out."); |
| 1201 | Result = LXT_RESULT_FAILURE; |
| 1202 | goto ErrorExit; |
| 1203 | } |
| 1204 | |
| 1205 | LxtCheckErrno(MessageSize); |
| 1206 | if (MessageSize != ExpectedMessageSize) |
| 1207 | { |
| 1208 | LxtLogError("Received %i bytes, expected %i", MessageSize, ExpectedMessageSize); |
| 1209 | |
| 1210 | Result = LXT_RESULT_FAILURE; |
| 1211 | goto ErrorExit; |
| 1212 | } |
| 1213 | |
| 1214 | if (strncmp(Message, ExpectedMessage, ExpectedMessageSize) != 0) |
| 1215 | { |
| 1216 | LxtLogError("Received '%s', expected '%s'", Message, ExpectedMessage); |
| 1217 | Result = LXT_RESULT_FAILURE; |
| 1218 | goto ErrorExit; |
| 1219 | } |
| 1220 | |
| 1221 | Result = LXT_RESULT_SUCCESS; |
| 1222 | |
| 1223 | ErrorExit: |
| 1224 | return Result; |
| 1225 | } |
| 1226 | |
| 1227 | void LxtPrintPartialMemory(const unsigned char* Buffer, size_t Size, size_t BufferIndex, const char* Prefix) |
| 1228 | |
| 1229 | /*++ |
| 1230 | |
| 1231 | Routine Description: |
| 1232 | |
| 1233 | This routine prints the contents of a memory buffer at the specified index |
| 1234 | with some context. |
| 1235 | |
| 1236 | Arguments: |
| 1237 | |
| 1238 | Buffer - Supplies the memory buffer to print. |
| 1239 | |
| 1240 | Size - Supplies the size of the buffer. |
| 1241 | |
| 1242 | BufferIndex - Supplies the index at which to print. |
| 1243 | |
| 1244 | Prefix - Supplies the prefix for the message. |
| 1245 | |
| 1246 | Return Value: |
| 1247 | |
| 1248 | Returns 0 on success, -1 on failure. |
| 1249 | |
| 1250 | --*/ |
| 1251 | |
| 1252 | { |
| 1253 | |
| 1254 | size_t End; |
| 1255 | size_t Index; |
| 1256 | char Message[256]; |
| 1257 | char Temp[10]; |
| 1258 | |
| 1259 | memset(Message, 0, sizeof(Message)); |
| 1260 | Index = BufferIndex - 5; |
| 1261 | if (Index > BufferIndex) |
| 1262 | { |
| 1263 | Index = 0; |
| 1264 | } |
| 1265 | |
| 1266 | End = Index + 11; |
| 1267 | if (End > Size) |
| 1268 | { |
| 1269 | End = Size; |
| 1270 | } |
| 1271 | |
| 1272 | if (Prefix != NULL) |
| 1273 | { |
| 1274 | strcat(Message, Prefix); |
| 1275 | strcat(Message, " "); |
| 1276 | } |
| 1277 | |
| 1278 | if (Index > 0) |
| 1279 | { |
| 1280 | strcat(Message, "..."); |
| 1281 | } |
| 1282 | |
| 1283 | for (; Index < End; Index += 1) |
| 1284 | { |
| 1285 | strcat(Message, " "); |
| 1286 | if (Index == BufferIndex) |
| 1287 | { |
| 1288 | strcat(Message, "("); |
| 1289 | } |
| 1290 | |
| 1291 | sprintf(Temp, "%02x", Buffer[Index]); |
| 1292 | strcat(Message, Temp); |
| 1293 | if (Index == BufferIndex) |
| 1294 | { |
| 1295 | strcat(Message, ")"); |
| 1296 | } |
| 1297 | } |
| 1298 | |
| 1299 | if (End < Size) |
| 1300 | { |
| 1301 | strcat(Message, " ..."); |
| 1302 | } |
| 1303 | |
| 1304 | LxtLogInfo("%s", Message); |
| 1305 | return; |
| 1306 | } |
| 1307 | |
| 1308 | int LxtSendMessage(int Socket, const char* Message) |
| 1309 | |
| 1310 | /*++ |
| 1311 | |
| 1312 | Routine Description: |
| 1313 | |
| 1314 | This routine sends a message to a socket and checks if it was successfully |
| 1315 | sent. |
| 1316 | |
| 1317 | Arguments: |
| 1318 | |
| 1319 | Socket - Supplies a file descriptor for the socket to send on. |
| 1320 | |
| 1321 | Message - Supplies a pointer to a zero-terminated buffer containing the |
| 1322 | message. |
| 1323 | |
| 1324 | Return Value: |
| 1325 | |
| 1326 | Returns 0 on success, -1 on failure. |
| 1327 | |
| 1328 | --*/ |
| 1329 | |
| 1330 | { |
| 1331 | |
| 1332 | int MessageSize; |
| 1333 | int Result; |
| 1334 | int SentSize; |
| 1335 | |
| 1336 | MessageSize = strlen(Message); |
| 1337 | LxtCheckErrno(SentSize = send(Socket, Message, MessageSize, 0)); |
| 1338 | if (SentSize != MessageSize) |
| 1339 | { |
| 1340 | LxtLogError("Sent %i bytes, expected %i", SentSize, MessageSize); |
| 1341 | Result = LXT_RESULT_FAILURE; |
| 1342 | goto ErrorExit; |
| 1343 | } |
| 1344 | |
| 1345 | Result = LXT_RESULT_SUCCESS; |
| 1346 | |
| 1347 | ErrorExit: |
| 1348 | return Result; |
| 1349 | } |
| 1350 | |
| 1351 | void LxtShowUsage(PCLXT_VARIATION Variations, unsigned int VariationCount) |
| 1352 | |
| 1353 | /*++ |
| 1354 | |
| 1355 | Description: |
| 1356 | |
| 1357 | This routine shows usage for the variations. |
| 1358 | |
| 1359 | Arguments: |
| 1360 | |
| 1361 | Variations - Supplies the variations. |
| 1362 | |
| 1363 | VariationCount - Supplies the number of variations. |
| 1364 | |
| 1365 | Return Value: |
| 1366 | |
| 1367 | None. |
| 1368 | |
| 1369 | --*/ |
| 1370 | |
| 1371 | { |
| 1372 | |
| 1373 | size_t Index; |
| 1374 | |
| 1375 | LxtLogInfo("Usage: ./test_name [-v <variation_mask>] [-l <log_type>] [-a] [-?]"); |
| 1376 | LxtLogInfo("Variations:"); |
| 1377 | for (Index = 0; Index < VariationCount; Index += 1) |
| 1378 | { |
| 1379 | LxtLogInfo("%s: %llu", Variations[Index].Name, 1ull << Index); |
| 1380 | } |
| 1381 | |
| 1382 | return; |
| 1383 | } |
| 1384 | |
| 1385 | int LxtSignalBlock(int Signal) |
| 1386 | |
| 1387 | /*++ |
| 1388 | |
| 1389 | Routine Description: |
| 1390 | |
| 1391 | This routine blocks the specified signal. |
| 1392 | |
| 1393 | Arguments: |
| 1394 | |
| 1395 | Signal - Supplies the signal number. |
| 1396 | |
| 1397 | Return Value: |
| 1398 | |
| 1399 | Returns 0 on success, -1 on failure. |
| 1400 | |
| 1401 | --*/ |
| 1402 | |
| 1403 | { |
| 1404 | |
| 1405 | int Result; |
| 1406 | sigset_t Signals; |
| 1407 | |
| 1408 | sigemptyset(&Signals); |
| 1409 | sigaddset(&Signals, Signal); |
| 1410 | LxtCheckErrnoZeroSuccess(sigprocmask(SIG_BLOCK, &Signals, NULL)); |
| 1411 | |
| 1412 | ErrorExit: |
| 1413 | return Result; |
| 1414 | } |
| 1415 | |
| 1416 | int LxtSignalDefault(int Signal) |
| 1417 | |
| 1418 | /*++ |
| 1419 | |
| 1420 | Routine Description: |
| 1421 | |
| 1422 | This routine reverts to the default action for the specified signal. |
| 1423 | |
| 1424 | Arguments: |
| 1425 | |
| 1426 | Signal - Supplies the signal number. |
| 1427 | |
| 1428 | Return Value: |
| 1429 | |
| 1430 | Returns 0 on success, -1 on failure. |
| 1431 | |
| 1432 | --*/ |
| 1433 | |
| 1434 | { |
| 1435 | |
| 1436 | struct sigaction Action; |
| 1437 | int Result; |
| 1438 | |
| 1439 | memset(&Action, 0, sizeof(Action)); |
| 1440 | Action.sa_handler = SIG_DFL; |
| 1441 | LxtCheckErrnoZeroSuccess(sigaction(Signal, &Action, NULL)); |
| 1442 | |
| 1443 | ErrorExit: |
| 1444 | return Result; |
| 1445 | } |
| 1446 | |
| 1447 | int LxtSignalIgnore(int Signal) |
| 1448 | |
| 1449 | /*++ |
| 1450 | |
| 1451 | Routine Description: |
| 1452 | |
| 1453 | This routine ignores the specified signal. |
| 1454 | |
| 1455 | Arguments: |
| 1456 | |
| 1457 | Signal - Supplies the signal number. |
| 1458 | |
| 1459 | Return Value: |
| 1460 | |
| 1461 | Returns 0 on success, -1 on failure. |
| 1462 | |
| 1463 | --*/ |
| 1464 | |
| 1465 | { |
| 1466 | |
| 1467 | struct sigaction Action; |
| 1468 | int Result; |
| 1469 | |
| 1470 | memset(&Action, 0, sizeof(Action)); |
| 1471 | Action.sa_handler = SIG_IGN; |
| 1472 | LxtCheckErrnoZeroSuccess(sigaction(Signal, &Action, NULL)); |
| 1473 | |
| 1474 | ErrorExit: |
| 1475 | return Result; |
| 1476 | } |
| 1477 | |
| 1478 | int LxtSignalCheckInfoReceived(int Signal, int Code, pid_t Pid, uid_t Uid) |
| 1479 | |
| 1480 | /*++ |
| 1481 | |
| 1482 | Routine Description: |
| 1483 | |
| 1484 | This routine checks if the specified signal was received by the signal |
| 1485 | handlers, with the specified info values. |
| 1486 | |
| 1487 | N.B. The signal handler must have been established with SA_SIGINFO for this |
| 1488 | to work. |
| 1489 | |
| 1490 | Arguments: |
| 1491 | |
| 1492 | Signal - Supplies the expected signal number. |
| 1493 | |
| 1494 | Code - Supplies the expected signal code. |
| 1495 | |
| 1496 | Pid - Supplies the expected process ID. |
| 1497 | |
| 1498 | Uid - Supplies the expected user ID. |
| 1499 | |
| 1500 | Return Value: |
| 1501 | |
| 1502 | Returns the index in the received signals array on success, -1 on failure. |
| 1503 | |
| 1504 | --*/ |
| 1505 | |
| 1506 | { |
| 1507 | |
| 1508 | int Index; |
| 1509 | PLXT_SIGNAL_INFO Info; |
| 1510 | int Result; |
| 1511 | |
| 1512 | Info = LxtSignalFindThreadInfo(); |
| 1513 | if (Info == NULL) |
| 1514 | { |
| 1515 | Result = LXT_RESULT_FAILURE; |
| 1516 | goto ErrorExit; |
| 1517 | } |
| 1518 | |
| 1519 | LxtCheckResult(Index = LxtSignalCheckReceived(Signal)); |
| 1520 | LxtCheckEqual(Signal, Info->SignalInfo[Index].si_signo, "%d"); |
| 1521 | LxtCheckEqual(Code, Info->SignalInfo[Index].si_code, "%d"); |
| 1522 | LxtCheckEqual(Pid, Info->SignalInfo[Index].si_pid, "%d"); |
| 1523 | LxtCheckEqual(Uid, Info->SignalInfo[Index].si_uid, "%d"); |
| 1524 | Result = Index; |
| 1525 | |
| 1526 | ErrorExit: |
| 1527 | return Result; |
| 1528 | } |
| 1529 | |
| 1530 | int LxtSignalCheckNoSignal(void) |
| 1531 | |
| 1532 | /*++ |
| 1533 | |
| 1534 | Routine Description: |
| 1535 | |
| 1536 | This routine checks if no signal was received. |
| 1537 | |
| 1538 | Arguments: |
| 1539 | |
| 1540 | None. |
| 1541 | |
| 1542 | Return Value: |
| 1543 | |
| 1544 | Returns 0 on success, -1 on failure. |
| 1545 | |
| 1546 | --*/ |
| 1547 | |
| 1548 | { |
| 1549 | |
| 1550 | PLXT_SIGNAL_INFO Info; |
| 1551 | int Result; |
| 1552 | |
| 1553 | Info = LxtSignalFindThreadInfo(); |
| 1554 | if (Info == NULL) |
| 1555 | { |
| 1556 | Result = LXT_RESULT_FAILURE; |
| 1557 | goto ErrorExit; |
| 1558 | } |
| 1559 | |
| 1560 | if (Info->SignalCount == 0) |
| 1561 | { |
| 1562 | Result = LXT_RESULT_SUCCESS; |
| 1563 | } |
| 1564 | else |
| 1565 | { |
| 1566 | Result = LXT_RESULT_FAILURE; |
| 1567 | LxtLogError("Unexpected signal."); |
| 1568 | } |
| 1569 | |
| 1570 | ErrorExit: |
| 1571 | return Result; |
| 1572 | } |
| 1573 | |
| 1574 | int LxtSignalCheckReceived(int Signal) |
| 1575 | |
| 1576 | /*++ |
| 1577 | |
| 1578 | Routine Description: |
| 1579 | |
| 1580 | This routine checks if the specified signal was received by the signal |
| 1581 | handler. |
| 1582 | |
| 1583 | Arguments: |
| 1584 | |
| 1585 | Signal - Supplies the expected signal number. |
| 1586 | |
| 1587 | Return Value: |
| 1588 | |
| 1589 | Returns the index in the received signals array on success, -1 on failure. |
| 1590 | |
| 1591 | --*/ |
| 1592 | |
| 1593 | { |
| 1594 | |
| 1595 | int Index; |
| 1596 | PLXT_SIGNAL_INFO Info; |
| 1597 | int Result; |
| 1598 | |
| 1599 | Info = LxtSignalFindThreadInfo(); |
| 1600 | if (Info == NULL) |
| 1601 | { |
| 1602 | Result = LXT_RESULT_FAILURE; |
| 1603 | goto SignalCheckReceivedEnd; |
| 1604 | } |
| 1605 | |
| 1606 | if (Info->SignalCount == 0) |
| 1607 | { |
| 1608 | Result = LXT_RESULT_FAILURE; |
| 1609 | LxtLogError("Signal %d was not received.", Signal); |
| 1610 | goto SignalCheckReceivedEnd; |
| 1611 | } |
| 1612 | |
| 1613 | for (Index = 0; Index < Info->SignalCount; Index += 1) |
| 1614 | { |
| 1615 | if (Info->ReceivedSignal[Index] == -1) |
| 1616 | { |
| 1617 | Result = LXT_RESULT_FAILURE; |
| 1618 | LxtLogError("An error occurred in the signal handler"); |
| 1619 | goto SignalCheckReceivedEnd; |
| 1620 | } |
| 1621 | |
| 1622 | if (Info->ReceivedSignal[Index] == Signal) |
| 1623 | { |
| 1624 | Result = Index; |
| 1625 | goto SignalCheckReceivedEnd; |
| 1626 | } |
| 1627 | } |
| 1628 | |
| 1629 | Result = LXT_RESULT_FAILURE; |
| 1630 | LxtLogError("Signal %d was not received!", Signal); |
| 1631 | |
| 1632 | SignalCheckReceivedEnd: |
| 1633 | return Result; |
| 1634 | } |
| 1635 | |
| 1636 | int LxtSignalCheckSigChldReceived(int Code, pid_t Pid, uid_t Uid, int Status) |
| 1637 | |
| 1638 | /*++ |
| 1639 | |
| 1640 | Routine Description: |
| 1641 | |
| 1642 | This routine checks if the SIGCHLD signal was received by the signal |
| 1643 | handlers, with the specified info values. |
| 1644 | |
| 1645 | N.B. The signal handler must have been established with SA_SIGINFO for this |
| 1646 | to work. |
| 1647 | |
| 1648 | Arguments: |
| 1649 | |
| 1650 | Code - Supplies the expected signal code. |
| 1651 | |
| 1652 | Pid - Supplies the expected process ID. |
| 1653 | |
| 1654 | Uid - Supplies the expected user ID. |
| 1655 | |
| 1656 | Status - Supplies the expected process status. |
| 1657 | |
| 1658 | Return Value: |
| 1659 | |
| 1660 | Returns the index in the received signals array on success, -1 on failure. |
| 1661 | |
| 1662 | --*/ |
| 1663 | |
| 1664 | { |
| 1665 | |
| 1666 | int Index; |
| 1667 | PLXT_SIGNAL_INFO Info; |
| 1668 | int Result; |
| 1669 | |
| 1670 | Info = LxtSignalFindThreadInfo(); |
| 1671 | if (Info == NULL) |
| 1672 | { |
| 1673 | Result = LXT_RESULT_FAILURE; |
| 1674 | goto ErrorExit; |
| 1675 | } |
| 1676 | |
| 1677 | LxtCheckResult(Index = LxtSignalCheckInfoReceived(SIGCHLD, Code, Pid, Uid)); |
| 1678 | LxtCheckEqual(Status, Info->SignalInfo[Index].si_status, "%d"); |
| 1679 | Result = Index; |
| 1680 | |
| 1681 | ErrorExit: |
| 1682 | return Result; |
| 1683 | } |
| 1684 | |
| 1685 | PLXT_SIGNAL_INFO |
| 1686 | LxtSignalFindThreadInfo(void) |
| 1687 | |
| 1688 | /*++ |
| 1689 | |
| 1690 | Description: |
| 1691 | |
| 1692 | This routine finds the signal test info for the current thread. |
| 1693 | |
| 1694 | Arguments: |
| 1695 | |
| 1696 | None. |
| 1697 | |
| 1698 | Return Value: |
| 1699 | |
| 1700 | A pointer to the signal info, or NULL if the signal info was not |
| 1701 | initialized. |
| 1702 | |
| 1703 | --*/ |
| 1704 | |
| 1705 | { |
| 1706 | |
| 1707 | size_t Index; |
| 1708 | PLXT_SIGNAL_INFO Result; |
| 1709 | pid_t ThreadId; |
| 1710 | |
| 1711 | Result = NULL; |
| 1712 | ThreadId = gettid(); |
| 1713 | for (Index = 0; Index < SIGNAL_MAX_THREADS; Index += 1) |
| 1714 | { |
| 1715 | if (g_ThreadSignalInfo[Index].ThreadId == ThreadId) |
| 1716 | { |
| 1717 | Result = &g_ThreadSignalInfo[Index]; |
| 1718 | break; |
| 1719 | } |
| 1720 | } |
| 1721 | |
| 1722 | if (Result == NULL) |
| 1723 | { |
| 1724 | LxtLogError("LxtSignalInitializeThread not called for this thread."); |
| 1725 | goto ErrorExit; |
| 1726 | } |
| 1727 | |
| 1728 | ErrorExit: |
| 1729 | return Result; |
| 1730 | } |
| 1731 | |
| 1732 | int LxtSignalGetCount(void) |
| 1733 | |
| 1734 | /*++ |
| 1735 | |
| 1736 | Routine Description: |
| 1737 | |
| 1738 | This routine returns the number of received signals. |
| 1739 | |
| 1740 | Arguments: |
| 1741 | |
| 1742 | None. |
| 1743 | |
| 1744 | Return Value: |
| 1745 | |
| 1746 | The number of received signals, or -1 on failure. |
| 1747 | |
| 1748 | --*/ |
| 1749 | |
| 1750 | { |
| 1751 | |
| 1752 | PLXT_SIGNAL_INFO Info; |
| 1753 | int Result; |
| 1754 | |
| 1755 | Info = LxtSignalFindThreadInfo(); |
| 1756 | if (Info == NULL) |
| 1757 | { |
| 1758 | Result = LXT_RESULT_FAILURE; |
| 1759 | goto ErrorExit; |
| 1760 | } |
| 1761 | |
| 1762 | Result = Info->SignalCount; |
| 1763 | |
| 1764 | ErrorExit: |
| 1765 | return Result; |
| 1766 | } |
| 1767 | |
| 1768 | int LxtSignalGetInfo(siginfo_t* SignalInfo) |
| 1769 | |
| 1770 | /*++ |
| 1771 | |
| 1772 | Routine Description: |
| 1773 | |
| 1774 | This routine gets a copy of the last received signal info. |
| 1775 | |
| 1776 | Arguments: |
| 1777 | |
| 1778 | SignalInfo - Supplies a pointer which receives the signal info. |
| 1779 | |
| 1780 | Return Value: |
| 1781 | |
| 1782 | Returns 0 on success, -1 on failure. |
| 1783 | |
| 1784 | --*/ |
| 1785 | |
| 1786 | { |
| 1787 | |
| 1788 | PLXT_SIGNAL_INFO Info; |
| 1789 | int Result; |
| 1790 | |
| 1791 | Info = LxtSignalFindThreadInfo(); |
| 1792 | if (Info == NULL) |
| 1793 | { |
| 1794 | Result = LXT_RESULT_FAILURE; |
| 1795 | goto ErrorExit; |
| 1796 | } |
| 1797 | |
| 1798 | *SignalInfo = Info->SignalInfo[0]; |
| 1799 | Result = LXT_RESULT_SUCCESS; |
| 1800 | |
| 1801 | ErrorExit: |
| 1802 | return Result; |
| 1803 | } |
| 1804 | |
| 1805 | void LxtSignalHandler(int Signal) |
| 1806 | |
| 1807 | /*++ |
| 1808 | |
| 1809 | Routine Description: |
| 1810 | |
| 1811 | This routine handles signals for the process. |
| 1812 | |
| 1813 | Arguments: |
| 1814 | |
| 1815 | Signal - Supplies the signal that was received |
| 1816 | |
| 1817 | Return Value: |
| 1818 | |
| 1819 | None. |
| 1820 | |
| 1821 | --*/ |
| 1822 | |
| 1823 | { |
| 1824 | |
| 1825 | int AllowedSignals; |
| 1826 | PLXT_SIGNAL_INFO Info; |
| 1827 | int Result; |
| 1828 | |
| 1829 | Info = NULL; |
| 1830 | |
| 1831 | #if defined(__i386__) |
| 1832 | |
| 1833 | register int Eax asm("eax"); |
| 1834 | register void* Ecx asm("ecx"); |
| 1835 | register void* Edx asm("edx"); |
| 1836 | |
| 1837 | // |
| 1838 | // Verify register contents. |
| 1839 | // |
| 1840 | |
| 1841 | LxtCheckEqual(Eax, Signal, "%d"); |
| 1842 | LxtCheckEqual(Edx, NULL, "%p"); |
| 1843 | LxtCheckEqual(Ecx, NULL, "%p"); |
| 1844 | |
| 1845 | // |
| 1846 | // Verify stack alignment. |
| 1847 | // |
| 1848 | |
| 1849 | LxtCheckEqual((uintptr_t)&Signal & 0xf, 0, "%p"); |
| 1850 | |
| 1851 | #endif |
| 1852 | |
| 1853 | Info = LxtSignalFindThreadInfo(); |
| 1854 | if (Info == NULL) |
| 1855 | { |
| 1856 | Result = LXT_RESULT_FAILURE; |
| 1857 | goto ErrorExit; |
| 1858 | } |
| 1859 | |
| 1860 | if (Info->AllowMultipleSignals != FALSE) |
| 1861 | { |
| 1862 | AllowedSignals = SIGNAL_MAX_SIGNALS; |
| 1863 | } |
| 1864 | else |
| 1865 | { |
| 1866 | AllowedSignals = 1; |
| 1867 | } |
| 1868 | |
| 1869 | if (Info->SignalCount < AllowedSignals) |
| 1870 | { |
| 1871 | LxtLogInfo("Process %d got signal %d (%s)", getpid(), Signal, strsignal(Signal)); |
| 1872 | |
| 1873 | Result = Signal; |
| 1874 | } |
| 1875 | else |
| 1876 | { |
| 1877 | LxtLogError("Unexpected signal %d (%s)", Signal, strsignal(Signal)); |
| 1878 | Result = LXT_RESULT_FAILURE; |
| 1879 | } |
| 1880 | |
| 1881 | ErrorExit: |
| 1882 | if (Info != NULL) |
| 1883 | { |
| 1884 | if (Result < 0) |
| 1885 | { |
| 1886 | Info->ReceivedSignal[0] = LXT_RESULT_FAILURE; |
| 1887 | Info->SignalCount = 1; |
| 1888 | } |
| 1889 | else if (Info->SignalCount < AllowedSignals) |
| 1890 | { |
| 1891 | Info->ReceivedSignal[Info->SignalCount] = Result; |
| 1892 | Info->SignalCount += 1; |
| 1893 | } |
| 1894 | } |
| 1895 | |
| 1896 | return; |
| 1897 | } |
| 1898 | |
| 1899 | void LxtSignalHandlerSigAction(int Signal, siginfo_t* SigInfo, void* UContext) |
| 1900 | |
| 1901 | /*++ |
| 1902 | |
| 1903 | Routine Description: |
| 1904 | |
| 1905 | This routine handles signals for the process using the SA_SIGINFO flag. |
| 1906 | |
| 1907 | Arguments: |
| 1908 | |
| 1909 | Signal - Supplies the signal that was received. |
| 1910 | |
| 1911 | SigInfo - Supplies additional information about the signal. |
| 1912 | |
| 1913 | UContext - Supplies the scheduling context from the process before the |
| 1914 | signal handler was invoked. |
| 1915 | |
| 1916 | Return Value: |
| 1917 | |
| 1918 | None. |
| 1919 | |
| 1920 | --*/ |
| 1921 | |
| 1922 | { |
| 1923 | |
| 1924 | int AllowedSignals; |
| 1925 | PLXT_SIGNAL_INFO Info; |
| 1926 | int Result; |
| 1927 | |
| 1928 | Info = NULL; |
| 1929 | |
| 1930 | #if defined(__i386__) |
| 1931 | |
| 1932 | register int Eax asm("eax"); |
| 1933 | register void* Ecx asm("ecx"); |
| 1934 | register void* Edx asm("edx"); |
| 1935 | |
| 1936 | // |
| 1937 | // Verify register contents. |
| 1938 | // |
| 1939 | |
| 1940 | LxtCheckEqual(Eax, Signal, "%d"); |
| 1941 | LxtCheckEqual(Edx, SigInfo, "%p"); |
| 1942 | LxtCheckEqual(Ecx, UContext, "%p"); |
| 1943 | |
| 1944 | // |
| 1945 | // Verify stack alignment. |
| 1946 | // |
| 1947 | |
| 1948 | LxtCheckEqual((uintptr_t)&Signal & 0xf, 0, "%p"); |
| 1949 | |
| 1950 | #endif |
| 1951 | |
| 1952 | LxtCheckEqual(Signal, SigInfo->si_signo, "%d"); |
| 1953 | Info = LxtSignalFindThreadInfo(); |
| 1954 | if (Info == NULL) |
| 1955 | { |
| 1956 | Result = LXT_RESULT_FAILURE; |
| 1957 | goto ErrorExit; |
| 1958 | } |
| 1959 | |
| 1960 | if (Info->AllowMultipleSignals != FALSE) |
| 1961 | { |
| 1962 | AllowedSignals = SIGNAL_MAX_SIGNALS; |
| 1963 | } |
| 1964 | else |
| 1965 | { |
| 1966 | AllowedSignals = 1; |
| 1967 | } |
| 1968 | |
| 1969 | if (Info->SignalCount < AllowedSignals) |
| 1970 | { |
| 1971 | if (Signal == SIGCHLD) |
| 1972 | { |
| 1973 | LxtLogInfo( |
| 1974 | "Process %d(%d) got signal %d (%s), code %d, pid %d, " |
| 1975 | "uid %d, status %d", |
| 1976 | getpid(), |
| 1977 | gettid(), |
| 1978 | SigInfo->si_signo, |
| 1979 | strsignal(SigInfo->si_signo), |
| 1980 | SigInfo->si_code, |
| 1981 | SigInfo->si_pid, |
| 1982 | SigInfo->si_uid, |
| 1983 | SigInfo->si_status); |
| 1984 | } |
| 1985 | else |
| 1986 | { |
| 1987 | LxtLogInfo( |
| 1988 | "Process %d(%d) got signal %d (%s), code %d, pid %d, uid %d", |
| 1989 | getpid(), |
| 1990 | gettid(), |
| 1991 | SigInfo->si_signo, |
| 1992 | strsignal(SigInfo->si_signo), |
| 1993 | SigInfo->si_code, |
| 1994 | SigInfo->si_pid, |
| 1995 | SigInfo->si_uid); |
| 1996 | } |
| 1997 | |
| 1998 | Result = Signal; |
| 1999 | } |
| 2000 | else |
| 2001 | { |
| 2002 | LxtLogError( |
| 2003 | "Process %d got unexpected signal %d (%s), code %d, pid %d, uid %d", |
| 2004 | getpid(), |
| 2005 | SigInfo->si_signo, |
| 2006 | strsignal(SigInfo->si_signo), |
| 2007 | SigInfo->si_code, |
| 2008 | SigInfo->si_pid, |
| 2009 | SigInfo->si_uid); |
| 2010 | |
| 2011 | Result = LXT_RESULT_FAILURE; |
| 2012 | } |
| 2013 | |
| 2014 | ErrorExit: |
| 2015 | if (Info != NULL) |
| 2016 | { |
| 2017 | if (Result < 0) |
| 2018 | { |
| 2019 | Info->ReceivedSignal[0] = LXT_RESULT_FAILURE; |
| 2020 | Info->SignalCount = 1; |
| 2021 | } |
| 2022 | else if (Info->SignalCount < AllowedSignals) |
| 2023 | { |
| 2024 | Info->ReceivedSignal[Info->SignalCount] = Result; |
| 2025 | Info->SignalInfo[Info->SignalCount] = *SigInfo; |
| 2026 | Info->SignalCount += 1; |
| 2027 | } |
| 2028 | } |
| 2029 | |
| 2030 | return; |
| 2031 | } |
| 2032 | |
| 2033 | int LxtSignalInitialize(void) |
| 2034 | |
| 2035 | /*++ |
| 2036 | |
| 2037 | Description: |
| 2038 | |
| 2039 | This routine initializes the signal test infrastructure for the current |
| 2040 | process. |
| 2041 | |
| 2042 | N.B. Run this function for any process that uses the signal test |
| 2043 | infrastructure. If a test uses fork(), you must run this function |
| 2044 | again in the child process. |
| 2045 | |
| 2046 | Arguments: |
| 2047 | |
| 2048 | None. |
| 2049 | |
| 2050 | Return Value: |
| 2051 | |
| 2052 | Returns 0 on success, -1 on failure. |
| 2053 | |
| 2054 | --*/ |
| 2055 | |
| 2056 | { |
| 2057 | |
| 2058 | int Result; |
| 2059 | |
| 2060 | g_NextSignalThread = 0; |
| 2061 | memset(g_ThreadSignalInfo, 0, sizeof(g_ThreadSignalInfo)); |
| 2062 | return LxtSignalInitializeThread(); |
| 2063 | } |
| 2064 | |
| 2065 | int LxtSignalInitializeThread(void) |
| 2066 | |
| 2067 | /*++ |
| 2068 | |
| 2069 | Description: |
| 2070 | |
| 2071 | This routine initializes the signal test infrastructure for the current |
| 2072 | thread. |
| 2073 | |
| 2074 | N.B. Run this function for any thread that uses the signal test |
| 2075 | infrastructure, except the main thread of the process; for the main |
| 2076 | thread, run LxtSignalInitialize instead. |
| 2077 | |
| 2078 | Arguments: |
| 2079 | |
| 2080 | None. |
| 2081 | |
| 2082 | Return Value: |
| 2083 | |
| 2084 | Returns 0 on success, -1 on failure. |
| 2085 | |
| 2086 | --*/ |
| 2087 | |
| 2088 | { |
| 2089 | |
| 2090 | int Index; |
| 2091 | int Result; |
| 2092 | |
| 2093 | Index = __sync_fetch_and_add(&g_NextSignalThread, 1); |
| 2094 | if (Index >= SIGNAL_MAX_THREADS) |
| 2095 | { |
| 2096 | LxtLogError("Too many threads in signal test."); |
| 2097 | Result = LXT_RESULT_FAILURE; |
| 2098 | goto ErrorExit; |
| 2099 | } |
| 2100 | |
| 2101 | if (g_ThreadSignalInfo[Index].ThreadId != 0) |
| 2102 | { |
| 2103 | LxtLogError("Invalid signal test state."); |
| 2104 | Result = LXT_RESULT_FAILURE; |
| 2105 | goto ErrorExit; |
| 2106 | } |
| 2107 | |
| 2108 | g_ThreadSignalInfo[Index].ThreadId = gettid(); |
| 2109 | Result = LXT_RESULT_SUCCESS; |
| 2110 | |
| 2111 | ErrorExit: |
| 2112 | return Result; |
| 2113 | } |
| 2114 | |
| 2115 | void LxtSignalResetReceived(void) |
| 2116 | |
| 2117 | /*++ |
| 2118 | |
| 2119 | Routine Description: |
| 2120 | |
| 2121 | This routine resets the global variables used by the signal handlers. |
| 2122 | |
| 2123 | Arguments: |
| 2124 | |
| 2125 | None. |
| 2126 | |
| 2127 | Return Value: |
| 2128 | |
| 2129 | None. |
| 2130 | |
| 2131 | --*/ |
| 2132 | |
| 2133 | { |
| 2134 | |
| 2135 | PLXT_SIGNAL_INFO Info; |
| 2136 | |
| 2137 | Info = LxtSignalFindThreadInfo(); |
| 2138 | if (Info == NULL) |
| 2139 | { |
| 2140 | goto ErrorExit; |
| 2141 | } |
| 2142 | |
| 2143 | Info->SignalCount = 0; |
| 2144 | |
| 2145 | ErrorExit: |
| 2146 | return; |
| 2147 | } |
| 2148 | |
| 2149 | int LxtSignalSetupHandler(int Signal, int Flags) |
| 2150 | |
| 2151 | /*++ |
| 2152 | |
| 2153 | Routine Description: |
| 2154 | |
| 2155 | This routine sets up a signal handler. |
| 2156 | |
| 2157 | Arguments: |
| 2158 | |
| 2159 | Signal - Supplies the signal. |
| 2160 | |
| 2161 | Flags - Supplies the flags. |
| 2162 | |
| 2163 | Return Value: |
| 2164 | |
| 2165 | 0 on success, -1 on failure. |
| 2166 | |
| 2167 | --*/ |
| 2168 | |
| 2169 | { |
| 2170 | |
| 2171 | struct sigaction Action; |
| 2172 | int Result; |
| 2173 | |
| 2174 | // |
| 2175 | // Check that the signal infrastructure was initialized properly. |
| 2176 | // |
| 2177 | |
| 2178 | if (LxtSignalFindThreadInfo() == NULL) |
| 2179 | { |
| 2180 | Result = LXT_RESULT_FAILURE; |
| 2181 | goto ErrorExit; |
| 2182 | } |
| 2183 | |
| 2184 | memset(&Action, 0, sizeof(Action)); |
| 2185 | if ((Flags & SA_SIGINFO) != 0) |
| 2186 | { |
| 2187 | Action.sa_sigaction = LxtSignalHandlerSigAction; |
| 2188 | } |
| 2189 | else |
| 2190 | { |
| 2191 | Action.sa_handler = LxtSignalHandler; |
| 2192 | } |
| 2193 | |
| 2194 | Action.sa_flags = Flags; |
| 2195 | LxtCheckErrnoZeroSuccess(sigaction(Signal, &Action, NULL)); |
| 2196 | |
| 2197 | ErrorExit: |
| 2198 | return Result; |
| 2199 | } |
| 2200 | |
| 2201 | void LxtSignalSetAllowMultiple(BOOLEAN AllowMultiple) |
| 2202 | |
| 2203 | /*++ |
| 2204 | |
| 2205 | Routine Description: |
| 2206 | |
| 2207 | This routine sets whether or not receiving another signal when one was |
| 2208 | already received should be not considered an error. |
| 2209 | |
| 2210 | Arguments: |
| 2211 | |
| 2212 | AllowMultiple - Supplies a value that indicates whether multiple signals |
| 2213 | are allowed. |
| 2214 | |
| 2215 | Return Value: |
| 2216 | |
| 2217 | None. |
| 2218 | |
| 2219 | --*/ |
| 2220 | |
| 2221 | { |
| 2222 | |
| 2223 | PLXT_SIGNAL_INFO Info; |
| 2224 | |
| 2225 | Info = LxtSignalFindThreadInfo(); |
| 2226 | if (Info == NULL) |
| 2227 | { |
| 2228 | goto ErrorExit; |
| 2229 | } |
| 2230 | |
| 2231 | Info->AllowMultipleSignals = AllowMultiple; |
| 2232 | |
| 2233 | ErrorExit: |
| 2234 | return; |
| 2235 | } |
| 2236 | |
| 2237 | int LxtSignalTimedWait(sigset_t* Set, siginfo_t* SignalInfo, struct timespec* Timeout) |
| 2238 | |
| 2239 | /*++ |
| 2240 | |
| 2241 | Routine Description: |
| 2242 | |
| 2243 | This routine calls the rt_sigtimedwait system call. |
| 2244 | |
| 2245 | N.B. In glibc, the sigtimedwait function is available as a wrapper for |
| 2246 | this system call, but in bionic only sigwait is available which |
| 2247 | prevents access to some of the parameters of rt_sigtimedwait. |
| 2248 | Even in glibc the sigtimedwait wrapper should not be used for testing |
| 2249 | since it silently converts SI_TKILL to SI_USER. |
| 2250 | |
| 2251 | Arguments: |
| 2252 | |
| 2253 | Set - Supplies a pointer to the set of signals to wait for. |
| 2254 | |
| 2255 | SignalInfo - Supplies a pointer that receives information about the signal. |
| 2256 | |
| 2257 | Timeout - Supplies a pointer to a timeout value. |
| 2258 | |
| 2259 | Return Value: |
| 2260 | |
| 2261 | The signal number on success, -1 on failure with errno set appropriately. |
| 2262 | |
| 2263 | --*/ |
| 2264 | |
| 2265 | { |
| 2266 | |
| 2267 | #if defined(__GLIBC__) |
| 2268 | sigset_t* SignalSetPointer; |
| 2269 | |
| 2270 | SignalSetPointer = Set; |
| 2271 | #else |
| 2272 | kernel_sigset_t SignalSet; |
| 2273 | kernel_sigset_t* SignalSetPointer; |
| 2274 | |
| 2275 | // |
| 2276 | // Convert to the 64-bit signal set size that the kernel expects. |
| 2277 | // |
| 2278 | |
| 2279 | SignalSetPointer = NULL; |
| 2280 | if (Set != NULL) |
| 2281 | { |
| 2282 | SignalSet = *Set; |
| 2283 | SignalSetPointer = &SignalSet; |
| 2284 | } |
| 2285 | |
| 2286 | #endif |
| 2287 | |
| 2288 | return syscall(SYS_rt_sigtimedwait, SignalSetPointer, SignalInfo, Timeout, _NSIG / 8); |
| 2289 | } |
| 2290 | |
| 2291 | int LxtSignalUnblock(int Signal) |
| 2292 | |
| 2293 | /*++ |
| 2294 | |
| 2295 | Routine Description: |
| 2296 | |
| 2297 | This routine unblocks the specified signal. |
| 2298 | |
| 2299 | Arguments: |
| 2300 | |
| 2301 | Signal - Supplies the signal number. |
| 2302 | |
| 2303 | Return Value: |
| 2304 | |
| 2305 | Returns 0 on success, -1 on failure. |
| 2306 | |
| 2307 | --*/ |
| 2308 | |
| 2309 | { |
| 2310 | |
| 2311 | int Result; |
| 2312 | sigset_t Signals; |
| 2313 | |
| 2314 | sigemptyset(&Signals); |
| 2315 | sigaddset(&Signals, Signal); |
| 2316 | LxtCheckErrnoZeroSuccess(sigprocmask(SIG_UNBLOCK, &Signals, NULL)); |
| 2317 | |
| 2318 | ErrorExit: |
| 2319 | return Result; |
| 2320 | } |
| 2321 | |
| 2322 | void LxtSignalWait(void) |
| 2323 | |
| 2324 | /*++ |
| 2325 | |
| 2326 | Routine Description: |
| 2327 | |
| 2328 | This routine waits until a signal has been received, or a timeout expires. |
| 2329 | |
| 2330 | N.B. This function does not return status to indicate whether a signal was |
| 2331 | received or not. Use the signal check functions after this |
| 2332 | function returns. |
| 2333 | |
| 2334 | Arguments: |
| 2335 | |
| 2336 | None. |
| 2337 | |
| 2338 | Return Value: |
| 2339 | |
| 2340 | None. |
| 2341 | |
| 2342 | --*/ |
| 2343 | |
| 2344 | { |
| 2345 | |
| 2346 | PLXT_SIGNAL_INFO Info; |
| 2347 | int WaitCount; |
| 2348 | |
| 2349 | Info = LxtSignalFindThreadInfo(); |
| 2350 | if (Info == NULL) |
| 2351 | { |
| 2352 | goto ErrorExit; |
| 2353 | } |
| 2354 | |
| 2355 | // |
| 2356 | // N.B. It would be possible to implement this function using sigsuspend |
| 2357 | // but only after signal blocking is implemented. In order to avoid |
| 2358 | // a race where sigsuspend might hang if the signal arrives before |
| 2359 | // the call, the relevant signal should be blocked before doing the |
| 2360 | // operation that generates the signal, then call sigsuspend with a |
| 2361 | // mask that unblocks the signal. |
| 2362 | // |
| 2363 | |
| 2364 | for (WaitCount = 0; (WaitCount < SIGNAL_WAIT_COUNT) && (Info->SignalCount == 0); WaitCount += 1) |
| 2365 | { |
| 2366 | |
| 2367 | usleep(SIGNAL_WAIT_TIMEOUT_US); |
| 2368 | } |
| 2369 | |
| 2370 | ErrorExit: |
| 2371 | return; |
| 2372 | } |
| 2373 | |
| 2374 | int LxtSignalWaitBlocked(int Signal, pid_t FromPid, int TimeoutSeconds) |
| 2375 | |
| 2376 | /*++ |
| 2377 | |
| 2378 | Routine Description: |
| 2379 | |
| 2380 | This routine waits for a specific blocked signal. |
| 2381 | |
| 2382 | Arguments: |
| 2383 | |
| 2384 | Signal - Supplies the signal number. |
| 2385 | |
| 2386 | FromPid - Supplies the expected origin of the signal. |
| 2387 | |
| 2388 | TimeoutSeconds - Supplies the timeout, in seconds. |
| 2389 | |
| 2390 | Return Value: |
| 2391 | |
| 2392 | Returns 0 on success, -1 on failure. |
| 2393 | |
| 2394 | --*/ |
| 2395 | |
| 2396 | { |
| 2397 | |
| 2398 | int ReceivedSignal; |
| 2399 | int Result; |
| 2400 | siginfo_t SignalInfo; |
| 2401 | sigset_t Signals; |
| 2402 | struct timespec Timeout; |
| 2403 | |
| 2404 | sigemptyset(&Signals); |
| 2405 | sigaddset(&Signals, Signal); |
| 2406 | Timeout.tv_sec = TimeoutSeconds; |
| 2407 | Timeout.tv_nsec = 0; |
| 2408 | LxtCheckErrno(ReceivedSignal = LxtSignalTimedWait(&Signals, &SignalInfo, &Timeout)); |
| 2409 | |
| 2410 | LxtCheckEqual(Signal, ReceivedSignal, "%d"); |
| 2411 | LxtCheckEqual(SignalInfo.si_pid, FromPid, "%d"); |
| 2412 | |
| 2413 | ErrorExit: |
| 2414 | return Result; |
| 2415 | } |
| 2416 | |
| 2417 | int LxtSocketPairClose(PLXT_SOCKET_PAIR SocketPair) |
| 2418 | |
| 2419 | /*++ |
| 2420 | |
| 2421 | Routine Description: |
| 2422 | |
| 2423 | This routine closes a socket pair. |
| 2424 | |
| 2425 | Arguments: |
| 2426 | |
| 2427 | SocketPair - Supplies a pointer to the socket pair. |
| 2428 | |
| 2429 | Return Value: |
| 2430 | |
| 2431 | 0 on success, -1 on failure. |
| 2432 | |
| 2433 | --*/ |
| 2434 | |
| 2435 | { |
| 2436 | |
| 2437 | int Result; |
| 2438 | |
| 2439 | LxtCheckResult(LxtSocketPairCloseChild(SocketPair)); |
| 2440 | LxtCheckResult(LxtSocketPairCloseParent(SocketPair)); |
| 2441 | |
| 2442 | ErrorExit: |
| 2443 | return Result; |
| 2444 | } |
| 2445 | |
| 2446 | int LxtSocketPairCloseChild(PLXT_SOCKET_PAIR SocketPair) |
| 2447 | |
| 2448 | /*++ |
| 2449 | |
| 2450 | Routine Description: |
| 2451 | |
| 2452 | This routine closes the child socket of a socket pair. |
| 2453 | |
| 2454 | Arguments: |
| 2455 | |
| 2456 | SocketPair - Supplies a pointer to the socket pair. |
| 2457 | |
| 2458 | Return Value: |
| 2459 | |
| 2460 | 0 on success, -1 on failure. |
| 2461 | |
| 2462 | --*/ |
| 2463 | |
| 2464 | { |
| 2465 | |
| 2466 | int Result; |
| 2467 | |
| 2468 | if (SocketPair->Child != 0) |
| 2469 | { |
| 2470 | LxtCheckErrnoZeroSuccess(close(SocketPair->Child)); |
| 2471 | SocketPair->Child = 0; |
| 2472 | } |
| 2473 | |
| 2474 | Result = LXT_RESULT_SUCCESS; |
| 2475 | |
| 2476 | ErrorExit: |
| 2477 | return Result; |
| 2478 | } |
| 2479 | |
| 2480 | int LxtSocketPairCloseParent(PLXT_SOCKET_PAIR SocketPair) |
| 2481 | |
| 2482 | /*++ |
| 2483 | |
| 2484 | Routine Description: |
| 2485 | |
| 2486 | This routine closes the parent socket of a socket pair. |
| 2487 | |
| 2488 | Arguments: |
| 2489 | |
| 2490 | SocketPair - Supplies a pointer to the socket pair. |
| 2491 | |
| 2492 | Return Value: |
| 2493 | |
| 2494 | 0 on success, -1 on failure. |
| 2495 | |
| 2496 | --*/ |
| 2497 | |
| 2498 | { |
| 2499 | |
| 2500 | int Result; |
| 2501 | |
| 2502 | if (SocketPair->Parent != 0) |
| 2503 | { |
| 2504 | LxtCheckErrnoZeroSuccess(close(SocketPair->Parent)); |
| 2505 | SocketPair->Parent = 0; |
| 2506 | } |
| 2507 | |
| 2508 | Result = LXT_RESULT_SUCCESS; |
| 2509 | |
| 2510 | ErrorExit: |
| 2511 | return Result; |
| 2512 | } |
| 2513 | |
| 2514 | int LxtSocketPairCreate(PLXT_SOCKET_PAIR SocketPair) |
| 2515 | |
| 2516 | /*++ |
| 2517 | |
| 2518 | Routine Description: |
| 2519 | |
| 2520 | This routine creates a socket pair. |
| 2521 | |
| 2522 | Arguments: |
| 2523 | |
| 2524 | SocketPair - Supplies a pointer to the socket pair. |
| 2525 | |
| 2526 | Return Value: |
| 2527 | |
| 2528 | 0 on success, -1 on failure. |
| 2529 | |
| 2530 | --*/ |
| 2531 | |
| 2532 | { |
| 2533 | |
| 2534 | int Result; |
| 2535 | |
| 2536 | memset(SocketPair, 0, sizeof(*SocketPair)); |
| 2537 | LxtCheckErrnoZeroSuccess(socketpair(AF_UNIX, SOCK_SEQPACKET, 0, (int*)SocketPair)); |
| 2538 | |
| 2539 | ErrorExit: |
| 2540 | return Result; |
| 2541 | } |
| 2542 | |
| 2543 | int LxtWaitPidPoll(pid_t ChildPid, int ExpectedWaitStatus) |
| 2544 | |
| 2545 | /*++ |
| 2546 | |
| 2547 | Routine Description: |
| 2548 | |
| 2549 | This routine waits until the specified child exits by polling its wait |
| 2550 | status repeatedly. |
| 2551 | |
| 2552 | Arguments: |
| 2553 | |
| 2554 | ChildPid - Supplies the thread group ID of the child to wait on. |
| 2555 | |
| 2556 | ExpectedWaitStatus - Supplies the expected value of the child's status. |
| 2557 | |
| 2558 | Return Value: |
| 2559 | |
| 2560 | Returns 0 on success, -1 on failure. |
| 2561 | |
| 2562 | --*/ |
| 2563 | |
| 2564 | { |
| 2565 | |
| 2566 | return LxtWaitPidPollOptions(ChildPid, ExpectedWaitStatus, 0, LXT_WAITPID_DEFAULT_TIMEOUT); |
| 2567 | } |
| 2568 | |
| 2569 | int LxtWaitPidPollOptions(pid_t ChildPid, int ExpectedWaitStatus, int Options, int TimeoutSeconds) |
| 2570 | |
| 2571 | /*++ |
| 2572 | |
| 2573 | Routine Description: |
| 2574 | |
| 2575 | This routine waits until the specified child exits by polling its wait |
| 2576 | status repeatedly. |
| 2577 | |
| 2578 | Arguments: |
| 2579 | |
| 2580 | ChildPid - Supplies the thread group ID of the child to wait on. |
| 2581 | |
| 2582 | ExpectedWaitStatus - Supplies the expected value of the child's status. |
| 2583 | |
| 2584 | Options - Supplies wait options to pass to waitpid. |
| 2585 | |
| 2586 | TimeoutSeconds - Supplies the number of seconds to wait for the child. |
| 2587 | |
| 2588 | Return Value: |
| 2589 | |
| 2590 | Returns 0 on success, -1 on failure. |
| 2591 | |
| 2592 | --*/ |
| 2593 | |
| 2594 | { |
| 2595 | |
| 2596 | int SecondWaitPidStatus; |
| 2597 | int Result; |
| 2598 | int WaitCount; |
| 2599 | int WaitCountTotal; |
| 2600 | int WaitPidResult; |
| 2601 | int WaitPidStatus; |
| 2602 | |
| 2603 | // |
| 2604 | // Only WNOHANG is supported right now, so poll for the result and check the |
| 2605 | // status. |
| 2606 | // |
| 2607 | |
| 2608 | Options |= WNOHANG; |
| 2609 | WaitCountTotal = (TimeoutSeconds * 1000000) / LXT_WAITPID_WAIT_TIMEOUT_US; |
| 2610 | for (WaitCount = 0; WaitCount < WaitCountTotal; ++WaitCount) |
| 2611 | { |
| 2612 | LxtCheckErrno((WaitPidResult = waitpid(ChildPid, &WaitPidStatus, Options))); |
| 2613 | |
| 2614 | if (WaitPidResult != 0) |
| 2615 | { |
| 2616 | if ((WaitPidStatus & 0x80000000) != 0) |
| 2617 | { |
| 2618 | Result = LXT_RESULT_FAILURE; |
| 2619 | LxtLogError("Unexpected high bit: %x - %x", WaitPidStatus, ExpectedWaitStatus); |
| 2620 | |
| 2621 | goto ErrorExit; |
| 2622 | } |
| 2623 | |
| 2624 | if (WaitPidStatus != ExpectedWaitStatus) |
| 2625 | { |
| 2626 | Result = LXT_RESULT_FAILURE; |
| 2627 | LxtLogError("Unexpected status: %x != %x", WaitPidStatus, ExpectedWaitStatus); |
| 2628 | |
| 2629 | goto ErrorExit; |
| 2630 | } |
| 2631 | |
| 2632 | if (WIFEXITED(WaitPidStatus) != 0) |
| 2633 | { |
| 2634 | LxtCheckErrnoFailure(waitpid(ChildPid, &SecondWaitPidStatus, WNOHANG), ECHILD); |
| 2635 | } |
| 2636 | |
| 2637 | Result = WaitPidResult; |
| 2638 | break; |
| 2639 | } |
| 2640 | |
| 2641 | usleep(LXT_WAITPID_WAIT_TIMEOUT_US); |
| 2642 | } |
| 2643 | |
| 2644 | if (WaitCount == WaitCountTotal) |
| 2645 | { |
| 2646 | Result = LXT_RESULT_FAILURE; |
| 2647 | LxtLogError("Failed to receive status %d from child {:%d:}", ExpectedWaitStatus, ChildPid); |
| 2648 | |
| 2649 | goto ErrorExit; |
| 2650 | } |
| 2651 | |
| 2652 | ErrorExit: |
| 2653 | return Result; |
| 2654 | } |
| 2655 | |
| 2656 | int LxtClose(int FileDescriptor) |
| 2657 | |
| 2658 | /*++ |
| 2659 | --*/ |
| 2660 | |
| 2661 | { |
| 2662 | int Result; |
| 2663 | |
| 2664 | LxtCheckErrnoZeroSuccess(close(FileDescriptor)); |
| 2665 | |
| 2666 | ErrorExit: |
| 2667 | return Result; |
| 2668 | } |
| 2669 | |
| 2670 | int LxtMunmap(void* Address, size_t Length) |
| 2671 | |
| 2672 | /*++ |
| 2673 | --*/ |
| 2674 | |
| 2675 | { |
| 2676 | int Result; |
| 2677 | |
| 2678 | LxtCheckErrno(munmap(Address, Length)); |
| 2679 | |
| 2680 | ErrorExit: |
| 2681 | return Result; |
| 2682 | } |
| 2683 | |
| 2684 | int LxtWslVersion(void) |
| 2685 | |
| 2686 | /*++ |
| 2687 | |
| 2688 | Description: |
| 2689 | |
| 2690 | This routine determines whether the tests are running in WSL1 or 2. |
| 2691 | |
| 2692 | Arguments: |
| 2693 | |
| 2694 | None. |
| 2695 | |
| 2696 | Return Value: |
| 2697 | |
| 2698 | The WSL version number, 1 or 2, or 0 if an error occurred. |
| 2699 | |
| 2700 | --*/ |
| 2701 | |
| 2702 | { |
| 2703 | |
| 2704 | int Result; |
| 2705 | struct utsname UnameBuffer; |
| 2706 | |
| 2707 | if (g_WslVersion == 0) |
| 2708 | { |
| 2709 | memset(&UnameBuffer, 0, sizeof(UnameBuffer)); |
| 2710 | LxtCheckErrno(uname(&UnameBuffer)); |
| 2711 | if (strstr(UnameBuffer.release, "Microsoft") == NULL) |
| 2712 | { |
| 2713 | g_WslVersion = 2; |
| 2714 | } |
| 2715 | else |
| 2716 | { |
| 2717 | g_WslVersion = 1; |
| 2718 | } |
| 2719 | } |
| 2720 | |
| 2721 | ErrorExit: |
| 2722 | return g_WslVersion; |
| 2723 | } |