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Annotation of truecrypt/driver/ntdriver.h, revision 1.1

1.1     ! root        1: /* Copyright (C) 2004 TrueCrypt Team, truecrypt.org
        !             2:    This product uses components written by Paul Le Roux <[email protected]> */
        !             3: 
        !             4: /* This structure is used to start new threads */
        !             5: typedef struct _THREAD_BLOCK_
        !             6: {
        !             7:        PDEVICE_OBJECT DeviceObject;
        !             8:        NTSTATUS ntCreateStatus;
        !             9:        WCHAR wszMountVolume[TC_MAX_PATH];
        !            10:        MOUNT_STRUCT *mount;
        !            11: } THREAD_BLOCK, *PTHREAD_BLOCK;
        !            12: 
        !            13: /* This structure is allocated for non-root devices! WARNING: bRootDevice
        !            14:    must be the first member of the structure! */
        !            15: typedef struct EXTENSION
        !            16: {
        !            17:        BOOL bRootDevice;       /* Is this the root device ? which the
        !            18:                                   user-mode apps talk to */
        !            19: 
        !            20:        ULONG lMagicNumber;     /* To ensure the completion routine is not
        !            21:                                   sending us bad IRP's */
        !            22: 
        !            23:        int nDosDriveNo;        /* Drive number this extension is mounted
        !            24:                                   against */
        !            25:        BOOL bShuttingDown;                     /* Is the driver shutting down ? */
        !            26:        BOOL bThreadShouldQuit;         /* Instruct per device worker thread to quit */
        !            27:        PETHREAD peThread;                      /* Thread handle */
        !            28:        KEVENT keCreateEvent;           /* Device creation event */
        !            29:        KSPIN_LOCK ListSpinLock;        /* IRP spinlock */
        !            30:        LIST_ENTRY ListEntry;           /* IRP listentry */
        !            31:        KSEMAPHORE RequestSemaphore;    /* IRP list request  Semaphore */
        !            32: 
        !            33: #ifdef USE_KERNEL_MUTEX
        !            34:        KMUTEX KernelMutex;                     /* Sync. mutex for entire thread */
        !            35: #endif
        !            36: 
        !            37:        HANDLE hDeviceFile;                     /* Device handle for this device */
        !            38:        PFILE_OBJECT pfoDeviceFile;     /* Device fileobject for this device */
        !            39:        PDEVICE_OBJECT pFsdDevice;      /* lower level device handle */
        !            40: 
        !            41:        CRYPTO_INFO *cryptoInfo;        /* Cryptographic information for this device */
        !            42: 
        !            43:        __int64 DiskLength;                     /* The length of the disk referred to by this device */  
        !            44:        __int64 NumberOfCylinders;              /* Partition info */
        !            45:        ULONG TracksPerCylinder;        /* Partition info */
        !            46:        ULONG SectorsPerTrack;          /* Partition info */
        !            47:        ULONG BytesPerSector;           /* Partition info */
        !            48:        UCHAR PartitionType;            /* Partition info */
        !            49: 
        !            50:        KEVENT keVolumeEvent;           /* Event structure used when setting up a device */
        !            51: 
        !            52:        BOOL bReadOnly;         /* Is this device readonly ? */
        !            53:        BOOL bRawDevice;        /* Is this a raw-partition or raw-floppy device ? */
        !            54: 
        !            55:        WCHAR wszVolume[64];    /* For the tree view in the user-mode
        !            56:                                   application, here we only store 64
        !            57:                                   characters rather than TC_MAX_PATH to try
        !            58:                                   to keep this structures size down - DONT
        !            59:                                   change this size without also changing
        !            60:                                   MOUNT_LIST_STRUCT! */
        !            61: 
        !            62:        long mountTime;         /* The time this volume was last mounted, for
        !            63:                                   the user-mode application */
        !            64: 
        !            65: } EXTENSION, *PEXTENSION;
        !            66: 
        !            67: /* Helper macro returning x seconds in units of 100 nanoseconds */
        !            68: #define WAIT_SECONDS(x) (x*10000000)
        !            69: 
        !            70: /* In order to see any debug output you will need to run a checked build of
        !            71:    NT */
        !            72: #ifdef DEBUG
        !            73: #define Dump DbgPrint
        !            74: #else
        !            75: #define Dump
        !            76: #endif
        !            77: 
        !            78: /* Sync. mutex for entire driver */
        !            79: extern KMUTEX driverMutex;
        !            80: 
        !            81: #ifdef USE_KERNEL_MUTEX
        !            82: #pragma message ("Compiling " __FILE__ " with USE_KERNEL_MUTEX on")
        !            83: #endif
        !            84: 
        !            85: /* Everything below this line is automatically updated by the -mkproto-tool- */
        !            86: 
        !            87: NTSTATUS DriverEntry (PDRIVER_OBJECT DriverObject, PUNICODE_STRING RegistryPath);
        !            88: NTSTATUS TCDispatchQueueIRP (PDEVICE_OBJECT DeviceObject, PIRP Irp);
        !            89: NTSTATUS TCCreateRootDeviceObject (PDRIVER_OBJECT DriverObject);
        !            90: NTSTATUS TCCreateDeviceObject (PDRIVER_OBJECT DriverObject, PDEVICE_OBJECT * ppDeviceObject, int nDosDriveNo);
        !            91: NTSTATUS TCDeviceControl (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension, PIRP Irp);
        !            92: NTSTATUS TCStartThread (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension, MOUNT_STRUCT * mount);
        !            93: void TCStopThread (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension);
        !            94: VOID TCThreadIRP (PVOID Context);
        !            95: void TCGetNTNameFromNumber (LPWSTR ntname, int nDriveNo);
        !            96: void TCGetDosNameFromNumber (LPWSTR dosname, int nDriveNo);
        !            97: LPWSTR TCTranslateCode (ULONG ulCode);
        !            98: PDEVICE_OBJECT TCDeleteDeviceObject (PDEVICE_OBJECT DeviceObject, PEXTENSION Extension);
        !            99: VOID TCUnloadDriver (PDRIVER_OBJECT DriverObject);

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