_KALPC_MESSAGE

Metadatacopy
struct _KALPC_MESSAGE {
    struct _LIST_ENTRY Entry;/* 0x0  16 */
    void* ExtensionBuffer;/* 0x10  8 */
    unsigned __int64 ExtensionBufferSize;/* 0x18  8 */
    union {
        struct _EPROCESS* QuotaProcess;/* 0x20  8 */
        void* QuotaBlock;/* 0x20  8 */
    };/* 0x20  8 */
    long SequenceNo;/* 0x28  4 */
    union {
        struct {
            unsigned long QueueType : 2;/* 0x2c:0  4 */
            unsigned long QueuePortType : 4;/* 0x2c:2  4 */
            unsigned long Canceled : 1;/* 0x2c:6  4 */
            unsigned long Ready : 1;/* 0x2c:7  4 */
            unsigned long ReleaseMessage : 1;/* 0x2c:8  4 */
            unsigned long SharedQuota : 1;/* 0x2c:9  4 */
            unsigned long ReplyWaitReply : 1;/* 0x2c:10  4 */
            unsigned long OwnerPortReference : 1;/* 0x2c:11  4 */
            unsigned long ReserveReference : 1;/* 0x2c:12  4 */
            unsigned long ReceiverReference : 1;/* 0x2c:13  4 */
        } s1;/* 0x2c  4 */
        unsigned long State;/* 0x2c  4 */
    } u1;/* 0x2c  4 */
    struct _ALPC_PORT* CancelSequencePort;/* 0x30  8 */
    struct _ALPC_PORT* CancelQueuePort;/* 0x38  8 */
    /* ── cacheline 1 boundary (64 bytes) ── */
    long CancelSequenceNo;/* 0x40  4 */
    /* 4 bytes padding */
    struct _LIST_ENTRY CancelListEntry;/* 0x48  16 */
    struct _ETHREAD* WaitingThread;/* 0x58  8 */
    struct _KALPC_RESERVE* Reserve;/* 0x60  8 */
    struct _ALPC_PORT* PortQueue;/* 0x68  8 */
    struct _ALPC_PORT* OwnerPort;/* 0x70  8 */
    struct _HANDLE_TABLE_ENTRY* UniqueTableEntry;/* 0x78  8 */
    /* ── cacheline 2 boundary (128 bytes) ── */
    struct _KALPC_MESSAGE_ATTRIBUTES MessageAttributes;/* 0x80  56 */
    void* DataUserVa;/* 0xb8  8 */
    /* ── cacheline 3 boundary (192 bytes) ── */
    void* DataSystemVa;/* 0xc0  8 */
    struct _ALPC_COMMUNICATION_INFO* CommunicationInfo;/* 0xc8  8 */
    struct _ALPC_PORT* ConnectionPort;/* 0xd0  8 */
    struct _ETHREAD* ServerThread;/* 0xd8  8 */
    struct _PORT_MESSAGE PortMessage;/* 0xe0  40 */
};