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1144 lines
32 KiB
1144 lines
32 KiB
/*++
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Copyright (c) 1993 Microsoft Corporation
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Module Name:
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spdisk.h
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Abstract:
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Hard disk manipulation support for text setup.
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Author:
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Ted Miller (tedm) 27-Aug-1993
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Revision History:
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--*/
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#include "spprecmp.h"
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#pragma hdrstop
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#include <ntddscsi.h>
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//
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// The following will be TRUE if hard disks have been determined
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// successfully (ie, if SpDetermineHardDisks was successfully called).
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//
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BOOLEAN HardDisksDetermined = FALSE;
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//
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// These two globals track the hard disks attached to the computer.
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//
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PHARD_DISK HardDisks;
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ULONG HardDiskCount;
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//
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// These flags get set to TRUE if we find any disks owned
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// by ATDISK or ABIOSDSK.
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//
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BOOLEAN AtDisksExist = FALSE;
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BOOLEAN AbiosDisksExist = FALSE;
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//
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// Structure to track scsi ports in the system and routine to initialize
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// a list of them.
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//
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typedef struct _MY_SCSI_PORT_INFO {
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//
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// Port number, redundant if these are stored in an array.
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//
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ULONG PortNumber;
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//
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// Port number relative to the the first port owned by the
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// adapter that owns this port.
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//
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// For example, if there are 2 Future Domain controllers and an Adaptec
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// controller, the RelativePortNumbers would be 0, 1, and 0.
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//
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ULONG RelativePortNumber;
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//
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// Name of owning miniport driver (ie, aha154x or fd8xx).
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// NULL if unknown.
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//
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PWSTR MiniportName;
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} MY_SCSI_PORT_INFO, *PMY_SCSI_PORT_INFO;
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//
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// Disk format type strings
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//
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// TBD : Use the localized strings
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//
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WCHAR *DiskTags[] = { DISK_TAG_TYPE_UNKNOWN,
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DISK_TAG_TYPE_PCAT,
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DISK_TAG_TYPE_NEC98,
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DISK_TAG_TYPE_GPT,
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DISK_TAG_TYPE_RAW };
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VOID
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SpInitializeScsiPortList(
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VOID
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);
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//
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// Count of scsi ports in the system.
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//
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ULONG ScsiPortCount;
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PMY_SCSI_PORT_INFO ScsiPortInfo;
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//
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// Key in registry of device map
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//
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PCWSTR szRegDeviceMap = L"\\Registry\\Machine\\Hardware\\DeviceMap";
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PWSTR
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SpDetermineOwningDriver(
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IN HANDLE Handle
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);
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VOID
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SpGetDiskInfo(
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IN ULONG DiskNumber,
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IN PVOID SifHandle,
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IN PWSTR OwningDriverName,
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IN HANDLE Handle,
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OUT PHARD_DISK Descriptor
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);
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BOOLEAN
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SpGetScsiAddress(
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IN HANDLE Handle,
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OUT PSCSI_ADDRESS ScsiAddress,
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OUT PWSTR *ScsiAdapterName
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);
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NTSTATUS
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SpDetermineInt13Hookers(
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IN HANDLE DiskHandle,
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IN OUT PHARD_DISK Disk
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)
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{
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NTSTATUS Status = STATUS_INVALID_PARAMETER;
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if (DiskHandle && Disk) {
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PVOID UnalignedBuffer = SpMemAlloc(Disk->Geometry.BytesPerSector * 2);
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if (UnalignedBuffer) {
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PON_DISK_MBR Mbr = ALIGN(UnalignedBuffer, Disk->Geometry.BytesPerSector);
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Disk->Int13Hooker = NoHooker;
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Status = SpReadWriteDiskSectors(DiskHandle,
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0,
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1,
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Disk->Geometry.BytesPerSector,
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(PVOID)Mbr,
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FALSE);
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if (NT_SUCCESS(Status)) {
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switch (Mbr->PartitionTable[0].SystemId) {
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case 0x54:
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Disk->Int13Hooker = HookerOnTrackDiskManager;
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break;
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case 0x55:
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Disk->Int13Hooker = HookerEZDrive;
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break;
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default:
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break;
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}
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}
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SpMemFree(UnalignedBuffer);
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} else {
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Status = STATUS_NO_MEMORY;
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}
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}
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return Status;
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}
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NTSTATUS
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SpDetermineHardDisks(
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IN PVOID SifHandle
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)
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/*++
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Routine Description:
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Determine the hard disks attached to the computer and
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the state they are in (ie, on-line, off-line, removed, etc).
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Arguments:
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SifHandle - handle to main setup information file.
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Return Value:
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STATUS_SUCCESS - operation successful.
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The global variables HardDisks and
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HardDiskCount are filled in if STATUS_SUCCESS.
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--*/
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{
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PCONFIGURATION_INFORMATION ConfigInfo;
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ULONG disk;
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PWSTR OwningDriverName;
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ULONG remainder;
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LARGE_INTEGER temp;
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PARTITION_INFORMATION PartitionInfo;
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CLEAR_CLIENT_SCREEN();
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SpDisplayStatusText(SP_STAT_EXAMINING_DISK_CONFIG,DEFAULT_STATUS_ATTRIBUTE);
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//
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// Determine the number of hard disks attached to the system
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// and allocate space for an array of Disk Descriptors.
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//
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ConfigInfo = IoGetConfigurationInformation();
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HardDiskCount = ConfigInfo->DiskCount;
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if ( HardDiskCount != 0 ) {
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HardDisks = SpMemAlloc(HardDiskCount * sizeof(HARD_DISK));
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RtlZeroMemory(HardDisks,HardDiskCount * sizeof(HARD_DISK));
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}
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SpInitializeScsiPortList();
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//
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// For each disk, fill in its device path in the nt namespace
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// and get information about the device.
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//
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for(disk=0; disk<HardDiskCount; disk++) {
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NTSTATUS Status;
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IO_STATUS_BLOCK IoStatusBlock;
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HANDLE Handle;
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PHARD_DISK Descriptor;
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FILE_FS_DEVICE_INFORMATION DeviceInfo;
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Descriptor = &HardDisks[disk];
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swprintf(Descriptor->DevicePath,L"\\Device\\Harddisk%u",disk);
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//
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// Assume off-line.
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//
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Descriptor->Status = DiskOffLine;
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SpFormatMessage(
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Descriptor->Description,
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sizeof(Descriptor->Description),
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SP_TEXT_UNKNOWN_DISK_0
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);
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//
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// Open partition0 of the disk. This should succeed even if
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// there is no media in the drive.
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//
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Status = SpOpenPartition0(Descriptor->DevicePath,&Handle,FALSE);
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if(!NT_SUCCESS(Status)) {
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continue;
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}
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//
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// Determine device characteristics (fixed/removable).
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// If this fails, assume that the disk is fixed and off-line.
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//
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Status = ZwQueryVolumeInformationFile(
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Handle,
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&IoStatusBlock,
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&DeviceInfo,
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sizeof(DeviceInfo),
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FileFsDeviceInformation
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);
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if(NT_SUCCESS(Status)) {
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//
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// Save device characteristic information.
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//
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ASSERT(DeviceInfo.DeviceType == FILE_DEVICE_DISK);
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ASSERT((DeviceInfo.Characteristics & (FILE_FLOPPY_DISKETTE | FILE_REMOTE_DEVICE)) == 0);
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Descriptor->Characteristics = DeviceInfo.Characteristics & FILE_REMOVABLE_MEDIA;
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} else {
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KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_INFO_LEVEL, "SETUP: unable to determine device characteristics for %ws (%lx)\n",Descriptor->DevicePath,Status));
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ZwClose(Handle);
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continue;
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}
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//
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// Attempt to get geometry.
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// If this fails, then assume the disk is off-line.
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//
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Status = ZwDeviceIoControlFile(
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Handle,
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NULL,
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NULL,
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NULL,
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&IoStatusBlock,
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IOCTL_DISK_GET_DRIVE_GEOMETRY,
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NULL,
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0,
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&Descriptor->Geometry,
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sizeof(DISK_GEOMETRY)
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);
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if(NT_SUCCESS(Status)) {
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Descriptor->CylinderCount = Descriptor->Geometry.Cylinders.QuadPart;
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//
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// Calculate some additional geometry information.
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//
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Descriptor->SectorsPerCylinder = Descriptor->Geometry.SectorsPerTrack
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* Descriptor->Geometry.TracksPerCylinder;
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#if defined(_IA64_)
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Status = ZwDeviceIoControlFile(
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Handle,
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NULL,
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NULL,
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NULL,
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&IoStatusBlock,
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IOCTL_DISK_GET_PARTITION_INFO,
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NULL,
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0,
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&PartitionInfo,
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sizeof(PARTITION_INFORMATION)
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);
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if (NT_SUCCESS(Status)) {
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Descriptor->DiskSizeSectors = (PartitionInfo.PartitionLength.QuadPart) /
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(Descriptor->Geometry.BytesPerSector);
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}
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else {
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#endif
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Descriptor->DiskSizeSectors = RtlExtendedIntegerMultiply(
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Descriptor->Geometry.Cylinders,
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Descriptor->SectorsPerCylinder
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).LowPart;
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#if defined(_IA64_)
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}
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#endif
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if (IsNEC_98) { //NEC98
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//
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// Used last cylinder by T&D
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//
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Descriptor->DiskSizeSectors -= Descriptor->SectorsPerCylinder;
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} //NEC98
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Descriptor->Status = DiskOnLine;
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//
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// Calculate the size of the disk in MB.
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//
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temp.QuadPart = UInt32x32To64(
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Descriptor->DiskSizeSectors,
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Descriptor->Geometry.BytesPerSector
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);
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Descriptor->DiskSizeMB = RtlExtendedLargeIntegerDivide(temp,1024*1024,&remainder).LowPart;
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if(remainder >= 512) {
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Descriptor->DiskSizeMB++;
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}
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//
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// Now that we know how big the disk is, change the default disk name.
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//
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SpFormatMessage(
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Descriptor->Description,
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sizeof(Descriptor->Description),
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SP_TEXT_UNKNOWN_DISK_1,
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Descriptor->DiskSizeMB
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);
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//
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// Attempt to get the disk signature.
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//
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Status = ZwDeviceIoControlFile(
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Handle,
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NULL,
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NULL,
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NULL,
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&IoStatusBlock,
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IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
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NULL,
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0,
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TemporaryBuffer,
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sizeof(TemporaryBuffer)
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);
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if(NT_SUCCESS(Status)) {
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PDRIVE_LAYOUT_INFORMATION_EX DriveLayoutEx =
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(PDRIVE_LAYOUT_INFORMATION_EX)TemporaryBuffer;
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if (DriveLayoutEx->PartitionStyle == PARTITION_STYLE_MBR)
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Descriptor->Signature = (( PDRIVE_LAYOUT_INFORMATION )TemporaryBuffer)->Signature;
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Descriptor->DriveLayout = *DriveLayoutEx;
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switch (DriveLayoutEx->PartitionStyle) {
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case PARTITION_STYLE_MBR:
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Descriptor->FormatType = DISK_FORMAT_TYPE_PCAT;
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//
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// Determine if any INT13 hookers are present
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//
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SpDetermineInt13Hookers(Handle, Descriptor);
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#if defined(_IA64_)
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//
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// Make sure that this is not a raw disk
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// which is being faked as MBR disk
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//
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if (SpPtnIsRawDiskDriveLayout(DriveLayoutEx)) {
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Descriptor->FormatType = DISK_FORMAT_TYPE_RAW;
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SPPT_SET_DISK_BLANK(disk, TRUE);
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}
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#endif
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break;
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case PARTITION_STYLE_GPT:
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Descriptor->FormatType = DISK_FORMAT_TYPE_GPT;
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break;
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case PARTITION_STYLE_RAW:
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Descriptor->FormatType = DISK_FORMAT_TYPE_RAW;
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SPPT_SET_DISK_BLANK(disk, TRUE);
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break;
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default:
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Descriptor->FormatType = DISK_FORMAT_TYPE_UNKNOWN;
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break;
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}
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} else {
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KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_WARNING_LEVEL, "SETUP: failed to get signature for %ws (%lx)\n",Descriptor->DevicePath,Status));
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Descriptor->Signature = 0;
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}
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} else {
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KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_WARNING_LEVEL, "SETUP: failed to get geometry for %ws (%lx)\n",Descriptor->DevicePath,Status));
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ZwClose(Handle);
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continue;
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}
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|
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//
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// NEC98: force removable media to OFFLINE.
|
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// Because NEC98 doesnot support FLEX boot, so NT cannot boot up
|
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// from removable media.
|
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//
|
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if (IsNEC_98 && (Descriptor->Characteristics & FILE_REMOVABLE_MEDIA)) {
|
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Descriptor->Status = DiskOffLine;
|
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KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_INFO_LEVEL, "SETUP: found removable disk. force offline %ws\n", Descriptor->DevicePath));
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}
|
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|
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//
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// Now go through the device object to determine the device driver
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// that owns this disk.
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//
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if(OwningDriverName = SpDetermineOwningDriver(Handle)) {
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SpGetDiskInfo(disk,SifHandle,OwningDriverName,Handle,Descriptor);
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SpMemFree(OwningDriverName);
|
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}
|
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ZwClose(Handle);
|
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}
|
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HardDisksDetermined = TRUE;
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return(STATUS_SUCCESS);
|
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}
|
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|
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|
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VOID
|
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SpGetDiskInfo(
|
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IN ULONG DiskNumber,
|
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IN PVOID SifHandle,
|
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IN PWSTR OwningDriverName,
|
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IN HANDLE Handle,
|
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OUT PHARD_DISK Descriptor
|
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)
|
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{
|
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PWSTR FormatString;
|
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PWSTR ScsiAdapterName;
|
|
PWSTR PcCardInfoKey;
|
|
SCSI_ADDRESS ScsiAddress;
|
|
NTSTATUS Status;
|
|
ULONG ValLength;
|
|
PKEY_VALUE_PARTIAL_INFORMATION p;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
DISK_CONTROLLER_NUMBER ControllerInfo;
|
|
|
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PcCardInfoKey = NULL;
|
|
|
|
//
|
|
// Look up the driver in the map in txtsetup.sif.
|
|
// Note that the driver could be one we don't recognize.
|
|
//
|
|
FormatString = SpGetSectionKeyIndex(SifHandle,SIF_DISKDRIVERMAP,OwningDriverName,0);
|
|
|
|
#if defined(_AMD64_) || defined(_X86_)
|
|
//
|
|
// Assume not SCSI and thus no scsi-style ARC name.
|
|
//
|
|
Descriptor->ArcPath[0] = 0;
|
|
Descriptor->ScsiMiniportShortname[0] = 0;
|
|
#endif // defined(_AMD64_) || defined(_X86_)
|
|
|
|
if(FormatString) {
|
|
|
|
if(_wcsicmp(OwningDriverName,L"disk")) {
|
|
|
|
//
|
|
// Non-scsi.
|
|
//
|
|
SpFormatMessageText(
|
|
Descriptor->Description,
|
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sizeof(Descriptor->Description),
|
|
FormatString,
|
|
Descriptor->DiskSizeMB
|
|
);
|
|
|
|
if(!_wcsicmp(OwningDriverName,L"atdisk")) {
|
|
|
|
AtDisksExist = TRUE;
|
|
|
|
//
|
|
// Get controller number for atdisks.
|
|
//
|
|
Status = ZwDeviceIoControlFile(
|
|
Handle,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatusBlock,
|
|
IOCTL_DISK_CONTROLLER_NUMBER,
|
|
NULL,
|
|
0,
|
|
&ControllerInfo,
|
|
sizeof(DISK_CONTROLLER_NUMBER)
|
|
);
|
|
|
|
if(NT_SUCCESS(Status)) {
|
|
|
|
swprintf(
|
|
TemporaryBuffer,
|
|
L"%ws\\AtDisk\\Controller %u",
|
|
szRegDeviceMap,
|
|
ControllerInfo.ControllerNumber
|
|
);
|
|
|
|
PcCardInfoKey = SpDupStringW(TemporaryBuffer);
|
|
|
|
} else {
|
|
KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_ERROR_LEVEL, "SETUP: Unable to get controller number (%lx)\n",Status));
|
|
}
|
|
} else if(!IsNEC_98) {
|
|
//
|
|
// Not AT disk, might be abios disk. (NEC98 does not have ABIOS disk.)
|
|
//
|
|
if(!_wcsicmp(OwningDriverName,L"abiosdsk")) {
|
|
AbiosDisksExist = TRUE;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
//
|
|
// Scsi. Get disk address info.
|
|
//
|
|
if(SpGetScsiAddress(Handle,&ScsiAddress,&ScsiAdapterName)) {
|
|
|
|
swprintf(
|
|
TemporaryBuffer,
|
|
L"%ws\\Scsi\\Scsi Port %u",
|
|
szRegDeviceMap,
|
|
ScsiAddress.PortNumber
|
|
);
|
|
|
|
PcCardInfoKey = SpDupStringW(TemporaryBuffer);
|
|
|
|
SpFormatMessageText(
|
|
Descriptor->Description,
|
|
sizeof(Descriptor->Description),
|
|
FormatString,
|
|
Descriptor->DiskSizeMB,
|
|
ScsiAddress.Lun,
|
|
ScsiAddress.TargetId,
|
|
ScsiAddress.PathId,
|
|
ScsiAdapterName
|
|
);
|
|
|
|
#if defined(_AMD64_) || defined(_X86_)
|
|
//
|
|
// Generate "secondary" arc path.
|
|
//
|
|
|
|
_snwprintf(
|
|
Descriptor->ArcPath,
|
|
sizeof(Descriptor->ArcPath)/sizeof(WCHAR),
|
|
L"scsi(%u)disk(%u)rdisk(%u)",
|
|
ScsiPortInfo[ScsiAddress.PortNumber].RelativePortNumber,
|
|
SCSI_COMBINE_BUS_TARGET(ScsiAddress.PathId, ScsiAddress.TargetId),
|
|
ScsiAddress.Lun
|
|
);
|
|
|
|
wcsncpy(
|
|
Descriptor->ScsiMiniportShortname,
|
|
ScsiAdapterName,
|
|
(sizeof(Descriptor->ScsiMiniportShortname)/sizeof(WCHAR))-1
|
|
);
|
|
#endif // defined(_AMD64_) || defined(_X86_)
|
|
|
|
SpMemFree(ScsiAdapterName);
|
|
|
|
} else {
|
|
|
|
//
|
|
// Some drivers, like SBP2PORT (1394), don't support
|
|
// IOCTL_SCSI_GET_ADDRESS, so just display driver name.
|
|
//
|
|
|
|
SpFormatMessage(
|
|
Descriptor->Description,
|
|
sizeof (Descriptor->Description),
|
|
SP_TEXT_UNKNOWN_DISK_2,
|
|
Descriptor->DiskSizeMB,
|
|
OwningDriverName
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Determine whether the disk is pcmcia.
|
|
//
|
|
if(PcCardInfoKey) {
|
|
|
|
Status = SpGetValueKey(
|
|
NULL,
|
|
PcCardInfoKey,
|
|
L"PCCARD",
|
|
sizeof(TemporaryBuffer),
|
|
(PCHAR)TemporaryBuffer,
|
|
&ValLength
|
|
);
|
|
|
|
if(NT_SUCCESS(Status)) {
|
|
|
|
p = (PKEY_VALUE_PARTIAL_INFORMATION)TemporaryBuffer;
|
|
|
|
if((p->Type == REG_DWORD) && (p->DataLength == sizeof(ULONG)) && *(PULONG)p->Data) {
|
|
|
|
Descriptor->PCCard = TRUE;
|
|
}
|
|
}
|
|
|
|
SpMemFree(PcCardInfoKey);
|
|
}
|
|
}
|
|
|
|
|
|
BOOLEAN
|
|
SpGetScsiAddress(
|
|
IN HANDLE Handle,
|
|
OUT PSCSI_ADDRESS ScsiAddress,
|
|
OUT PWSTR *ScsiAdapterName
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Get scsi address information about a device. This includes
|
|
the port, bus, id, and lun, as well as the shortname of the miniport
|
|
driver that owns the device.
|
|
|
|
Arguments:
|
|
|
|
Handle - handle to open device.
|
|
|
|
ScsiAddress - receives port, bus, id, and lun for the device described by Handle.
|
|
|
|
ScsiAdapterName - receives pointer to buffer containing shortname
|
|
for miniport driver that owns the device (ie, aha154x).
|
|
The caller must free this buffer via SpMemFree().
|
|
|
|
Return Value:
|
|
|
|
TRUE - scsi address information was determined successfully.
|
|
FALSE - error determining scsi address information.
|
|
|
|
--*/
|
|
|
|
{
|
|
NTSTATUS Status;
|
|
PWSTR MiniportName = NULL;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
|
|
Status = ZwDeviceIoControlFile(
|
|
Handle,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatusBlock,
|
|
IOCTL_SCSI_GET_ADDRESS,
|
|
NULL,
|
|
0,
|
|
ScsiAddress,
|
|
sizeof(SCSI_ADDRESS)
|
|
);
|
|
|
|
if(!NT_SUCCESS(Status)) {
|
|
KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_ERROR_LEVEL, "SETUP: Unable to get scsi address info (%lx)\n",Status));
|
|
return(FALSE);
|
|
}
|
|
|
|
//
|
|
// We can get the miniport name from the scsi port information list
|
|
// we built earlier.
|
|
//
|
|
if(ScsiAddress->PortNumber < ScsiPortCount) {
|
|
|
|
MiniportName = ScsiPortInfo[ScsiAddress->PortNumber].MiniportName;
|
|
|
|
} else {
|
|
|
|
//
|
|
// This should not happen.
|
|
//
|
|
ASSERT(ScsiAddress->PortNumber < ScsiPortCount);
|
|
|
|
MiniportName = TemporaryBuffer;
|
|
SpFormatMessage(MiniportName,sizeof(TemporaryBuffer),SP_TEXT_UNKNOWN);
|
|
}
|
|
|
|
*ScsiAdapterName = SpDupStringW(MiniportName);
|
|
|
|
return(TRUE);
|
|
}
|
|
|
|
|
|
PWSTR
|
|
SpDetermineOwningDriver(
|
|
IN HANDLE Handle
|
|
)
|
|
{
|
|
NTSTATUS Status;
|
|
OBJECT_HANDLE_INFORMATION HandleInfo;
|
|
PFILE_OBJECT FileObject;
|
|
ULONG ObjectNameLength;
|
|
POBJECT_NAME_INFORMATION ObjectNameInfo;
|
|
PWSTR OwningDriverName;
|
|
|
|
//
|
|
// Get the file object for the disk device.
|
|
//
|
|
Status = ObReferenceObjectByHandle(
|
|
Handle,
|
|
0L,
|
|
*IoFileObjectType,
|
|
ExGetPreviousMode(),
|
|
&FileObject,
|
|
&HandleInfo
|
|
);
|
|
|
|
if(!NT_SUCCESS(Status)) {
|
|
KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_ERROR_LEVEL, "SETUP: SpDetermineOwningDriver: unable to reference object (%lx)\n",Status));
|
|
return(NULL);
|
|
}
|
|
|
|
//
|
|
// Follow the links to the driver object and query the name.
|
|
//
|
|
ObjectNameInfo = (POBJECT_NAME_INFORMATION)TemporaryBuffer;
|
|
|
|
Status = ObQueryNameString(
|
|
FileObject->DeviceObject->DriverObject,
|
|
ObjectNameInfo,
|
|
sizeof(TemporaryBuffer),
|
|
&ObjectNameLength
|
|
);
|
|
|
|
//
|
|
// Dereference the file object now that we've got the name.
|
|
//
|
|
ObDereferenceObject(FileObject);
|
|
|
|
//
|
|
// Check the status of the name query.
|
|
//
|
|
if(!NT_SUCCESS(Status)) {
|
|
KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_ERROR_LEVEL, "SETUP: SpDetermineOwningDriver: unable to query name string (%lx)\n",Status));
|
|
return(NULL);
|
|
}
|
|
|
|
//
|
|
// Pull out the name of the owning driver.
|
|
//
|
|
if(OwningDriverName = wcsrchr(ObjectNameInfo->Name.Buffer,L'\\')) {
|
|
OwningDriverName++;
|
|
} else {
|
|
OwningDriverName = ObjectNameInfo->Name.Buffer;
|
|
}
|
|
|
|
return(SpDupStringW(OwningDriverName));
|
|
}
|
|
|
|
|
|
VOID
|
|
SpInitializeScsiPortList(
|
|
VOID
|
|
)
|
|
{
|
|
ULONG port;
|
|
OBJECT_ATTRIBUTES ObjectAttributes;
|
|
UNICODE_STRING UnicodeString;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
NTSTATUS Status;
|
|
HANDLE PortHandle;
|
|
ULONG RelativeNumber;
|
|
|
|
//
|
|
// Get the number of scsi ports in the system.
|
|
//
|
|
ScsiPortCount = IoGetConfigurationInformation()->ScsiPortCount;
|
|
|
|
//
|
|
// Allocate an array to hold information about each port.
|
|
//
|
|
ScsiPortInfo = SpMemAlloc(ScsiPortCount * sizeof(MY_SCSI_PORT_INFO));
|
|
RtlZeroMemory(ScsiPortInfo,ScsiPortCount * sizeof(MY_SCSI_PORT_INFO));
|
|
|
|
//
|
|
// Iterate through the ports.
|
|
//
|
|
for(port=0; port<ScsiPortCount; port++) {
|
|
|
|
ScsiPortInfo[port].PortNumber = port;
|
|
|
|
//
|
|
// Open \device\scsiport<n> so we can determine the owning miniport.
|
|
//
|
|
swprintf(TemporaryBuffer,L"\\Device\\ScsiPort%u",port);
|
|
|
|
INIT_OBJA(&ObjectAttributes,&UnicodeString,TemporaryBuffer);
|
|
|
|
Status = ZwCreateFile(
|
|
&PortHandle,
|
|
FILE_GENERIC_READ,
|
|
&ObjectAttributes,
|
|
&IoStatusBlock,
|
|
NULL,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE,
|
|
FILE_OPEN,
|
|
FILE_SYNCHRONOUS_IO_NONALERT,
|
|
NULL,
|
|
0
|
|
);
|
|
|
|
if(NT_SUCCESS(Status)) {
|
|
|
|
ScsiPortInfo[port].MiniportName = SpDetermineOwningDriver(PortHandle);
|
|
|
|
ZwClose(PortHandle);
|
|
|
|
} else {
|
|
KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_ERROR_LEVEL, "SETUP: unable to open \\device\\scsiport%u (%lx)\n",port,Status));
|
|
}
|
|
|
|
//
|
|
// Determine relative port number. If this is port 0 or the current port owner
|
|
// doesn't match the previous port owner, then the relative port number is 0.
|
|
// Otherwise the relative port number is one greater than the previous relative
|
|
// port number.
|
|
//
|
|
|
|
if(port && ScsiPortInfo[port-1].MiniportName && ScsiPortInfo[port].MiniportName
|
|
&& !_wcsicmp(ScsiPortInfo[port-1].MiniportName,ScsiPortInfo[port].MiniportName)) {
|
|
RelativeNumber++;
|
|
} else {
|
|
RelativeNumber = 0;
|
|
}
|
|
|
|
ScsiPortInfo[port].RelativePortNumber = RelativeNumber;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
NTSTATUS
|
|
SpOpenPartition(
|
|
IN PWSTR DiskDevicePath,
|
|
IN ULONG PartitionNumber,
|
|
OUT HANDLE *Handle,
|
|
IN BOOLEAN NeedWriteAccess
|
|
)
|
|
{
|
|
PWSTR PartitionPath;
|
|
UNICODE_STRING UnicodeString;
|
|
OBJECT_ATTRIBUTES Obja;
|
|
NTSTATUS Status;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
|
|
//
|
|
// Form the pathname of partition.
|
|
//
|
|
PartitionPath = SpMemAlloc((wcslen(DiskDevicePath) * sizeof(WCHAR)) + sizeof(L"\\partition000"));
|
|
if(PartitionPath == NULL) {
|
|
return(STATUS_NO_MEMORY);
|
|
}
|
|
|
|
swprintf(PartitionPath,L"%ws\\partition%u",DiskDevicePath,PartitionNumber);
|
|
|
|
//
|
|
// Attempt to open partition0.
|
|
//
|
|
INIT_OBJA(&Obja,&UnicodeString,PartitionPath);
|
|
|
|
Status = ZwCreateFile(
|
|
Handle,
|
|
FILE_GENERIC_READ | (NeedWriteAccess ? FILE_GENERIC_WRITE : 0),
|
|
&Obja,
|
|
&IoStatusBlock,
|
|
NULL,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
|
|
FILE_OPEN,
|
|
FILE_SYNCHRONOUS_IO_NONALERT,
|
|
NULL,
|
|
0
|
|
);
|
|
|
|
if(!NT_SUCCESS(Status)) {
|
|
KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_ERROR_LEVEL, "SETUP: Unable to open %ws (%lx)\n",PartitionPath,Status));
|
|
}
|
|
|
|
SpMemFree(PartitionPath);
|
|
|
|
return(Status);
|
|
}
|
|
|
|
|
|
NTSTATUS
|
|
SpReadWriteDiskSectors(
|
|
IN HANDLE Handle,
|
|
IN ULONGLONG SectorNumber,
|
|
IN ULONG SectorCount,
|
|
IN ULONG BytesPerSector,
|
|
IN OUT PVOID AlignedBuffer,
|
|
IN BOOLEAN Write
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Reads or writes one or more disk sectors.
|
|
|
|
Arguments:
|
|
|
|
Handle - supplies handle to open partition object from which
|
|
sectors are to be read or written. The handle must be
|
|
opened for synchronous I/O.
|
|
|
|
Return Value:
|
|
|
|
NTSTATUS value indicating outcome of I/O operation.
|
|
|
|
--*/
|
|
|
|
{
|
|
LARGE_INTEGER IoOffset;
|
|
ULONG IoSize;
|
|
IO_STATUS_BLOCK IoStatusBlock;
|
|
NTSTATUS Status;
|
|
|
|
//
|
|
// Calculate the large integer byte offset of the first sector
|
|
// and the size of the I/O.
|
|
//
|
|
IoOffset.QuadPart = UInt32x32To64(SectorNumber,BytesPerSector);
|
|
IoSize = SectorCount * BytesPerSector;
|
|
|
|
//
|
|
// Perform the I/O.
|
|
//
|
|
Status = (NTSTATUS)(
|
|
|
|
Write
|
|
|
|
?
|
|
ZwWriteFile(
|
|
Handle,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatusBlock,
|
|
AlignedBuffer,
|
|
IoSize,
|
|
&IoOffset,
|
|
NULL
|
|
)
|
|
:
|
|
ZwReadFile(
|
|
Handle,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
&IoStatusBlock,
|
|
AlignedBuffer,
|
|
IoSize,
|
|
&IoOffset,
|
|
NULL
|
|
)
|
|
);
|
|
|
|
|
|
if(!NT_SUCCESS(Status)) {
|
|
KdPrintEx((DPFLTR_SETUP_ID, DPFLTR_ERROR_LEVEL, "SETUP: Unable to %s %u sectors starting at sector %u\n",Write ? "write" : "read" ,SectorCount,SectorNumber));
|
|
}
|
|
|
|
return(Status);
|
|
}
|
|
|
|
|
|
ULONG
|
|
SpArcDevicePathToDiskNumber(
|
|
IN PWSTR ArcPath
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Given an arc device path, determine which NT disk it represents.
|
|
|
|
Arguments:
|
|
|
|
ArcPath - supplies arc path.
|
|
|
|
Return Value:
|
|
|
|
NT disk ordinal suitable for use in generating nt device paths
|
|
of the form \device\harddiskx.
|
|
|
|
-1 if cannot be determined.
|
|
|
|
--*/
|
|
|
|
{
|
|
PWSTR NtPath;
|
|
ULONG DiskNumber;
|
|
ULONG PrefixLength;
|
|
|
|
//
|
|
// Assume failure.
|
|
//
|
|
DiskNumber = (ULONG)(-1);
|
|
PrefixLength = wcslen(DISK_DEVICE_NAME_BASE);
|
|
|
|
//
|
|
// Convert the path to an nt path.
|
|
//
|
|
if((NtPath = SpArcToNt(ArcPath))
|
|
&& !_wcsnicmp(NtPath,DISK_DEVICE_NAME_BASE,PrefixLength))
|
|
{
|
|
DiskNumber = (ULONG)SpStringToLong(NtPath+PrefixLength,NULL,10);
|
|
SpMemFree(NtPath);
|
|
}
|
|
|
|
return(DiskNumber);
|
|
}
|
|
|
|
|
|
BOOLEAN
|
|
SpIsRegionBeyondCylinder1024(
|
|
IN PDISK_REGION Region
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine figures out whether a disk region contains sectors
|
|
that are on cylinders beyond cylinder 1024.
|
|
|
|
Arguments:
|
|
|
|
Region - supplies the disk region for the partition to be checked.
|
|
|
|
Return Value:
|
|
|
|
BOOLEAN - Returns TRUE if the region contains a sector located in cylinder
|
|
1024 or greater. Otherwise returns FALSE.
|
|
|
|
--*/
|
|
|
|
{
|
|
ULONGLONG LastSector;
|
|
ULONGLONG LastCylinder;
|
|
|
|
if (IsNEC_98) { //NEC98
|
|
//
|
|
// NEC98 has no "1024th cylinder limit".
|
|
//
|
|
return((BOOLEAN)FALSE);
|
|
} //NEC98
|
|
|
|
if (Region->DiskNumber == 0xffffffff) {
|
|
return FALSE; // Partition is a redirected drive
|
|
}
|
|
|
|
LastSector = Region->StartSector + Region->SectorCount - 1;
|
|
LastCylinder = LastSector / HardDisks[Region->DiskNumber].SectorsPerCylinder;
|
|
|
|
return ((BOOLEAN)(LastCylinder > 1023));
|
|
|
|
}
|
|
|
|
VOID
|
|
SpAppendDiskTag(
|
|
IN PHARD_DISK Disk
|
|
)
|
|
{
|
|
if (Disk) {
|
|
PWSTR TagStart = wcsrchr(Disk->Description, DISK_TAG_START_CHAR);
|
|
|
|
if (TagStart) {
|
|
if (wcscmp(TagStart, DiskTags[0]) && wcscmp(TagStart, DiskTags[1]) &&
|
|
wcscmp(TagStart, DiskTags[2]) && wcscmp(TagStart, DiskTags[3]) &&
|
|
wcscmp(TagStart, DiskTags[4])) {
|
|
|
|
//
|
|
// not the tag we were looking for
|
|
//
|
|
TagStart = Disk->Description + wcslen(Disk->Description);
|
|
}
|
|
} else {
|
|
TagStart = Disk->Description + wcslen(Disk->Description);
|
|
*TagStart = L' ';
|
|
TagStart++;
|
|
}
|
|
|
|
wcscpy(TagStart, DiskTags[Disk->FormatType]);
|
|
}
|
|
}
|