/* Legal Notice: Some portions of the source code contained in this file were derived from the source code of Encryption for the Masses 2.02a, which is Copyright (c) 1998-2000 Paul Le Roux and which is governed by the 'License Agreement for Encryption for the Masses'. Modifications and additions to the original source code (contained in this file) and all other portions of this file are Copyright (c) 2003-2011 TrueCrypt Developers Association and are governed by the TrueCrypt License 3.0 the full text of which is contained in the file License.txt included in TrueCrypt binary and source code distribution packages. */ #ifndef TC_HEADER_NTDRIVER #define TC_HEADER_NTDRIVER #include "Common.h" #include "EncryptedIoQueue.h" /* This structure is used to start new threads */ typedef struct _THREAD_BLOCK_ { PDEVICE_OBJECT DeviceObject; NTSTATUS ntCreateStatus; WCHAR wszMountVolume[TC_MAX_PATH + 8]; MOUNT_STRUCT *mount; } THREAD_BLOCK, *PTHREAD_BLOCK; /* This structure is allocated for non-root devices! WARNING: bRootDevice must be the first member of the structure! */ typedef struct EXTENSION { BOOL bRootDevice; /* Is this the root device ? which the user-mode apps talk to */ BOOL IsVolumeDevice; BOOL IsDriveFilterDevice; BOOL IsVolumeFilterDevice; int UniqueVolumeId; int nDosDriveNo; /* Drive number this extension is mounted against */ BOOL bShuttingDown; /* Is the driver shutting down ? */ BOOL bThreadShouldQuit; /* Instruct per device worker thread to quit */ PETHREAD peThread; /* Thread handle */ KEVENT keCreateEvent; /* Device creation event */ KSPIN_LOCK ListSpinLock; /* IRP spinlock */ LIST_ENTRY ListEntry; /* IRP listentry */ KSEMAPHORE RequestSemaphore; /* IRP list request Semaphore */ HANDLE hDeviceFile; /* Device handle for this device */ PFILE_OBJECT pfoDeviceFile; /* Device fileobject for this device */ PDEVICE_OBJECT pFsdDevice; /* lower level device handle */ CRYPTO_INFO *cryptoInfo; /* Cryptographic and other information for this device */ __int64 HostLength; __int64 DiskLength; /* The length of the disk referred to by this device */ __int64 NumberOfCylinders; /* Partition info */ ULONG TracksPerCylinder; /* Partition info */ ULONG SectorsPerTrack; /* Partition info */ ULONG BytesPerSector; /* Partition info */ UCHAR PartitionType; /* Partition info */ uint32 HostBytesPerSector; KEVENT keVolumeEvent; /* Event structure used when setting up a device */ EncryptedIoQueue Queue; BOOL bReadOnly; /* Is this device read-only ? */ BOOL bRemovable; /* Is this device removable media ? */ BOOL PartitionInInactiveSysEncScope; BOOL bRawDevice; /* Is this a raw-partition or raw-floppy device ? */ BOOL bMountManager; /* Mount manager knows about volume */ BOOL SystemFavorite; WCHAR wszVolume[TC_MAX_PATH]; /* DONT change this size without also changing MOUNT_LIST_STRUCT! */ LARGE_INTEGER fileCreationTime; LARGE_INTEGER fileLastAccessTime; LARGE_INTEGER fileLastWriteTime; LARGE_INTEGER fileLastChangeTime; BOOL bTimeStampValid; PSID UserSid; BOOL SecurityClientContextValid; SECURITY_CLIENT_CONTEXT SecurityClientContext; } EXTENSION, *PEXTENSION; typedef enum { ValidateInput, ValidateOutput, ValidateInputOutput } ValidateIOBufferSizeType; extern PDRIVER_OBJECT TCDriverObject; extern PDEVICE_OBJECT RootDeviceObject; extern BOOL DriverShuttingDown; extern ULONG OsMajorVersion; extern ULONG OsMinorVersion; extern BOOL VolumeClassFilterRegistered; extern BOOL CacheBootPassword; /* Helper macro returning x seconds in units of 100 nanoseconds */ #define WAIT_SECONDS(x) ((x)*10000000) NTSTATUS DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath); NTSTATUS DriverAddDevice (PDRIVER_OBJECT driverObject, PDEVICE_OBJECT pdo); void DumpMemory (void *memory, int size); BOOL IsAccessibleByUser (PUNICODE_STRING objectFileName, BOOL readOnly); NTSTATUS ProcessMainDeviceControlIrp (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension, PIRP Irp); NTSTATUS ProcessVolumeDeviceControlIrp (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension, PIRP Irp); NTSTATUS SendDeviceIoControlRequest (PDEVICE_OBJECT deviceObject, ULONG ioControlCode, void *inputBuffer, int inputBufferSize, void *outputBuffer, int outputBufferSize); NTSTATUS TCDispatchQueueIRP (PDEVICE_OBJECT DeviceObject, PIRP Irp); NTSTATUS TCCreateRootDeviceObject (PDRIVER_OBJECT DriverObject); NTSTATUS TCCreateDeviceObject (PDRIVER_OBJECT DriverObject, PDEVICE_OBJECT * ppDeviceObject, MOUNT_STRUCT * mount); NTSTATUS TCReadDevice (PDEVICE_OBJECT deviceObject, PVOID buffer, LARGE_INTEGER offset, ULONG length); NTSTATUS TCWriteDevice (PDEVICE_OBJECT deviceObject, PVOID buffer, LARGE_INTEGER offset, ULONG length); NTSTATUS TCStartThread (PKSTART_ROUTINE threadProc, PVOID threadArg, PKTHREAD *kThread); NTSTATUS TCStartThreadInProcess (PKSTART_ROUTINE threadProc, PVOID threadArg, PKTHREAD *kThread, PEPROCESS process); NTSTATUS TCStartVolumeThread (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension, MOUNT_STRUCT * mount); void TCStopThread (PKTHREAD kThread, PKEVENT wakeUpEvent); void TCStopVolumeThread (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension); VOID VolumeThreadProc (PVOID Context); void TCSleep (int milliSeconds); void TCGetNTNameFromNumber (LPWSTR ntname, int cbNtName, int nDriveNo); void TCGetDosNameFromNumber (LPWSTR dosname, int cbDosName, int nDriveNo); LPWSTR TCTranslateCode (ULONG ulCode); void TCDeleteDeviceObject (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension); VOID TCUnloadDriver (PDRIVER_OBJECT DriverObject); void OnShutdownPending (); NTSTATUS TCDeviceIoControl (PWSTR deviceName, ULONG IoControlCode, void *InputBuffer, ULONG InputBufferSize, void *OutputBuffer, ULONG OutputBufferSize); NTSTATUS TCOpenFsVolume (PEXTENSION Extension, PHANDLE volumeHandle, PFILE_OBJECT * fileObject); void TCCloseFsVolume (HANDLE volumeHandle, PFILE_OBJECT fileObject); NTSTATUS TCFsctlCall (PFILE_OBJECT fileObject, LONG IoControlCode, void *InputBuffer, int InputBufferSize, void *OutputBuffer, int OutputBufferSize); NTSTATUS CreateDriveLink (int nDosDriveNo); NTSTATUS RemoveDriveLink (int nDosDriveNo); NTSTATUS MountManagerMount (MOUNT_STRUCT *mount); NTSTATUS MountManagerUnmount (int nDosDriveNo); NTSTATUS MountDevice (PDEVICE_OBJECT deviceObject, MOUNT_STRUCT *mount); NTSTATUS UnmountDevice (UNMOUNT_STRUCT *unmountRequest, PDEVICE_OBJECT deviceObject, BOOL ignoreOpenFiles); NTSTATUS UnmountAllDevices (UNMOUNT_STRUCT *unmountRequest, BOOL ignoreOpenFiles); NTSTATUS SymbolicLinkToTarget (PWSTR symlinkName, PWSTR targetName, USHORT maxTargetNameLength); BOOL RootDeviceControlMutexAcquireNoWait (); void RootDeviceControlMutexRelease (); BOOL RegionsOverlap (unsigned __int64 start1, unsigned __int64 end1, unsigned __int64 start2, unsigned __int64 end2); void GetIntersection (uint64 start1, uint32 length1, uint64 start2, uint64 end2, uint64 *intersectStart, uint32 *intersectLength); NTSTATUS TCCompleteIrp (PIRP irp, NTSTATUS status, ULONG_PTR information); NTSTATUS TCCompleteDiskIrp (PIRP irp, NTSTATUS status, ULONG_PTR information); NTSTATUS ProbeRealDriveSize (PDEVICE_OBJECT driveDeviceObject, LARGE_INTEGER *driveSize); BOOL UserCanAccessDriveDevice (); size_t GetCpuCount (); void EnsureNullTerminatedString (wchar_t *str, size_t maxSizeInBytes); void *AllocateMemoryWithTimeout (size_t size, int retryDelay, int timeout); BOOL IsDriveLetterAvailable (int nDosDriveNo); NTSTATUS TCReadRegistryKey (PUNICODE_STRING keyPath, wchar_t *keyValueName, PKEY_VALUE_PARTIAL_INFORMATION *keyData); NTSTATUS TCWriteRegistryKey (PUNICODE_STRING keyPath, wchar_t *keyValueName, ULONG keyValueType, void *valueData, ULONG valueSize); BOOL IsVolumeClassFilterRegistered (); NTSTATUS ReadRegistryConfigFlags (BOOL driverEntry); NTSTATUS WriteRegistryConfigFlags (uint32 flags); BOOL ValidateIOBufferSize (PIRP irp, size_t requiredBufferSize, ValidateIOBufferSizeType type); NTSTATUS GetDeviceSectorSize (PDEVICE_OBJECT deviceObject, ULONG *bytesPerSector); NTSTATUS ZeroUnreadableSectors (PDEVICE_OBJECT deviceObject, LARGE_INTEGER startOffset, ULONG size, uint64 *zeroedSectorCount); NTSTATUS ReadDeviceSkipUnreadableSectors (PDEVICE_OBJECT deviceObject, byte *buffer, LARGE_INTEGER startOffset, ULONG size, uint64 *badSectorCount); BOOL IsVolumeAccessibleByCurrentUser (PEXTENSION volumeDeviceExtension); void GetElapsedTimeInit (LARGE_INTEGER *lastPerfCounter); int64 GetElapsedTime (LARGE_INTEGER *lastPerfCounter); BOOL IsOSAtLeast (OSVersionEnum reqMinOS); #define TC_BUG_CHECK(status) KeBugCheckEx (SECURITY_SYSTEM, __LINE__, (ULONG_PTR) status, 0, 'VC') #endif // TC_HEADER_NTDRIVER ef='#n168'>168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907