_IRP

Metadatacopy
struct _IRP {
    short Type;/* 0x0  2 */
    unsigned short Size;/* 0x2  2 */
    /* 4 bytes padding */
    struct _MDL* MdlAddress;/* 0x8  8 */
    unsigned long Flags;/* 0x10  4 */
    /* 4 bytes padding */
    union {
        struct _IRP* MasterIrp;/* 0x18  8 */
        long IrpCount;/* 0x18  4 */
        void* SystemBuffer;/* 0x18  8 */
    } AssociatedIrp;/* 0x18  8 */
    struct _LIST_ENTRY ThreadListEntry;/* 0x20  16 */
    struct _IO_STATUS_BLOCK IoStatus;/* 0x30  16 */
    /* ── cacheline 1 boundary (64 bytes) ── */
    char RequestorMode;/* 0x40  1 */
    unsigned char PendingReturned;/* 0x41  1 */
    char StackCount;/* 0x42  1 */
    char CurrentLocation;/* 0x43  1 */
    unsigned char Cancel;/* 0x44  1 */
    unsigned char CancelIrql;/* 0x45  1 */
    char ApcEnvironment;/* 0x46  1 */
    unsigned char AllocationFlags;/* 0x47  1 */
    struct _IO_STATUS_BLOCK* UserIosb;/* 0x48  8 */
    struct _KEVENT* UserEvent;/* 0x50  8 */
    union {
        struct {
            union {
                void (*UserApcRoutine)(void*, struct _IO_STATUS_BLOCK*, unsigned long);/* 0x58  8 */
                void* IssuingProcess;/* 0x58  8 */
            };/* 0x58  8 */
            void* UserApcContext;/* 0x60  8 */
        } AsynchronousParameters;/* 0x58  16 */
        union _LARGE_INTEGER AllocationSize;/* 0x58  8 */
    } Overlay;/* 0x58  16 */
    void (*CancelRoutine)(struct _DEVICE_OBJECT*, struct _IRP*);/* 0x68  8 */
    void* UserBuffer;/* 0x70  8 */
    union {
        struct {
            union {
                struct _KDEVICE_QUEUE_ENTRY DeviceQueueEntry;/* 0x78  24 */
                void* DriverContext[4];/* 0x78  32 */
            };/* 0x78  32 */
            struct _ETHREAD* Thread;/* 0x98  8 */
            char* AuxiliaryBuffer;/* 0xa0  8 */
            struct _LIST_ENTRY ListEntry;/* 0xa8  16 */
            union {
                struct _IO_STACK_LOCATION* CurrentStackLocation;/* 0xb8  8 */
                unsigned long PacketType;/* 0xb8  4 */
            };/* 0xb8  8 */
            struct _FILE_OBJECT* OriginalFileObject;/* 0xc0  8 */
        } Overlay;/* 0x78  80 */
        struct _KAPC Apc;/* 0x78  88 */
        void* CompletionKey;/* 0x78  8 */
    } Tail;/* 0x78  88 */
};