/*++

Copyright (c) Microsoft Corporation.  All rights reserved.

Module Name:

    clusapi.h

Abstract:

    This module defines the common management and application interface to
    the Windows Clusters services.

Authors:

    Rod Gamache     13-Feb-1996

Revision History:

--*/

#ifndef _CLUSTER_DISK_
#define _CLUSTER_DISK_


//
// Disk States.
//

typedef enum _DiskState {
    DiskOffline,
    DiskOnline,
    DiskFailed,
    DiskStalled,
    DiskOfflinePending,
    DiskStateInvalid,
    DiskStateMaximum = DiskStateInvalid
} DiskState;


//
// Define IOCTLs specific to ClusDisk Filter Driver.
//

#define IOCTL_DISK_CLUSTER_SET_STATE        CTL_CODE(IOCTL_SCSI_BASE, 0x500, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_ATTACH           CTL_CODE(IOCTL_SCSI_BASE, 0x505, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_DETACH           CTL_CODE(IOCTL_SCSI_BASE, 0x506, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_START_RESERVE    CTL_CODE(IOCTL_SCSI_BASE, 0x508, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_STOP_RESERVE     CTL_CODE(IOCTL_SCSI_BASE, 0x509, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_ALIVE_CHECK      CTL_CODE(IOCTL_SCSI_BASE, 0x510, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_DISK_CLUSTER_ACTIVE           CTL_CODE(IOCTL_SCSI_BASE, 0x512, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_TEST             CTL_CODE(IOCTL_SCSI_BASE, 0x513, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_NOT_CLUSTER_CAPABLE CTL_CODE(IOCTL_SCSI_BASE, 0x514, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_ARBITRATION_ESCAPE  CTL_CODE(IOCTL_SCSI_BASE, 0x516, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_WAIT_FOR_CLEANUP  CTL_CODE(IOCTL_SCSI_BASE, 0x521, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_VOLUME_TEST       CTL_CODE(IOCTL_SCSI_BASE, 0x522, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_ATTACH_LIST      CTL_CODE(IOCTL_SCSI_BASE, 0x523, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_DETACH_LIST      CTL_CODE(IOCTL_SCSI_BASE, 0x524, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_GET_STATE        CTL_CODE(IOCTL_SCSI_BASE, 0x525, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_RESERVE_INFO     CTL_CODE(IOCTL_SCSI_BASE, 0x526, METHOD_BUFFERED, FILE_ANY_ACCESS)

// Attach to specified signature.  Before attaching, offline the disk/volume then dismount.
// Any FS cached data is thrown away.  The old attach IOCTL will dismount, then offline.

#define IOCTL_DISK_CLUSTER_ATTACH_OFFLINE   CTL_CODE(IOCTL_SCSI_BASE, 0x526, METHOD_BUFFERED, FILE_WRITE_ACCESS)


//
// Obsolete clusdisk IOCTLs.  All are failed by the clusdisk driver.
//

#define IOCTL_DISK_CLUSTER_RESET_BUS        CTL_CODE(IOCTL_SCSI_BASE, 0x501, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_READ_CAPACITY    CTL_CODE(IOCTL_SCSI_BASE, 0x502, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_DISK_CLUSTER_RESERVE          CTL_CODE(IOCTL_SCSI_BASE, 0x503, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_RELEASE          CTL_CODE(IOCTL_SCSI_BASE, 0x504, METHOD_BUFFERED, FILE_WRITE_ACCESS)
#define IOCTL_DISK_CLUSTER_GET_DRIVE_LAYOUT CTL_CODE(IOCTL_SCSI_BASE, 0x507, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_DISK_CLUSTER_ROOT             CTL_CODE(IOCTL_SCSI_BASE, 0x511, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_DISK_CLUSTER_GET_DRIVE_LETTER CTL_CODE(IOCTL_SCSI_BASE, 0x515, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_NT4_CAPABLE       CTL_CODE(IOCTL_SCSI_BASE, 0x517, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_CHANGE_NOTIFY     CTL_CODE(IOCTL_SCSI_BASE, 0x518, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_HOLD_IO           CTL_CODE(IOCTL_SCSI_BASE, 0x519, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_DISK_CLUSTER_RESUME_IO         CTL_CODE(IOCTL_SCSI_BASE, 0x520, METHOD_BUFFERED, FILE_ANY_ACCESS)

//
// Setting disk state requires disk signature to be specified.
//

typedef struct _SET_DISK_STATE_PARAMS {
    ULONG Signature;
    UCHAR NewState;
    UCHAR OldState;
} SET_DISK_STATE_PARAMS, *PSET_DISK_STATE_PARAMS;

//
// Info about last completed reserve.
//

typedef struct _RESERVE_INFO {
    ULONG Signature;
    NTSTATUS ReserveFailure;
    LARGE_INTEGER   LastReserveEnd;
    LARGE_INTEGER   CurrentTime;
    LONG    ArbWriteCount;
    LONG    ReserveCount;
} RESERVE_INFO, *PRESERVE_INFO;

//
// Use this GUID to insure that onlines from other drivers are blocked until
// we online the device.
//
// {7AFCFABA-87D1-4421-9848-5481DD73E910}
//
DEFINE_GUID( GUID_CLUSTER_CONTROL,
             0x7afcfaba, 0x87d1, 0x4421, 0x98, 0x48, 0x54, 0x81, 0xdd, 0x73, 0xe9, 0x10);


#endif // _CLUSTER_DISK_