608 lines
14 KiB
C
608 lines
14 KiB
C
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/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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partition.c
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Abstract:
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Debugger extension for dumping partition structures:
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DRIVE_LAYOUT_INFORMATION
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DRIVE_LAYOUT_INFORMATION_EX
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PARTITION_INFORMATION
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PARTITION_INFORMATION_EX
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Author:
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Matthew D Hendel (math) 19-Jan-2000
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Revision History:
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--*/
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#include "pch.h"
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#include <ntdddisk.h>
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VOID
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DumpPartition(
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IN ULONG64 Address,
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IN ULONG Detail,
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IN ULONG Depth,
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IN ULONG PartitionCount
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)
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/*++
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Routine Description:
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Dump a PARTITION_INFORMATION structure.
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Arguments:
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Address - The address of the partition information structure to dump.
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Detail - The detail level. Currently unused.
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Depth - The depth to indent to.
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PartitionCount - The number of partitions. This is used to determine
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whether a particular partition ordinal is valid or not.
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Return Value:
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None.
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--*/
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{
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BOOL Succ;
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ULONG Size;
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ULONG64 StartingOffset;
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ULONG64 PartitionLength;
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ULONG PartitionNumber;
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UCHAR PartitionType;
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BOOLEAN BootIndicator;
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BOOLEAN RecognizedPartition;
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BOOLEAN RewritePartition;
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InitTypeRead(Address, nt!PARTITION_INFORMATION);
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StartingOffset = ReadField(StartingOffset.QuadPart);
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PartitionLength = ReadField(PartitionLength.QuadPart);
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PartitionType = (UCHAR) ReadField(PartitionType);
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BootIndicator = (BOOLEAN) ReadField(BootIndicator);
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RecognizedPartition = (BOOLEAN) ReadField(RecognizedPartition);
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RewritePartition = (BOOLEAN) ReadField(RewritePartition);
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PartitionNumber = (ULONG) ReadField(PartitionNumber);
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//
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// Sanity check the data.
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//
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if ( (BootIndicator != TRUE && BootIndicator != FALSE) ||
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(RecognizedPartition != TRUE && RecognizedPartition != FALSE) ||
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(RewritePartition != TRUE && RewritePartition != FALSE) ) {
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xdprintfEx (Depth, ("Invalid partition information at %p\n", Address));
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}
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if (PartitionNumber > PartitionCount) {
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PartitionNumber = (ULONG)-1;
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}
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xdprintfEx (Depth, ("[%-2d] %-16I64x %-16I64x %2.2x %c %c %c\n",
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PartitionNumber,
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StartingOffset,
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PartitionLength,
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PartitionType,
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BootIndicator ? 'x' : ' ',
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RecognizedPartition ? 'x' : ' ',
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RewritePartition ? 'x' : ' '
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));
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}
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VOID
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DumpDriveLayout(
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IN ULONG64 Address,
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IN ULONG Detail,
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IN ULONG Depth
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)
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{
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BOOL Succ;
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ULONG Size;
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ULONG i;
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ULONG64 PartAddress;
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ULONG result;
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ULONG offset;
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ULONG PartitionCount;
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ULONG Signature;
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ULONG OffsetOfFirstPartitionInfo;
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ULONG SizeOfPartitionInfo;
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InitTypeRead(Address, nt!_DRIVE_LAYOUT_INFORMATION);
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PartitionCount = (ULONG) ReadField(PartitionCount);
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Signature = (ULONG) ReadField(Signature);
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xdprintfEx (Depth, ("\nDRIVE_LAYOUT %p\n", Address));
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//
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// Warn if the partition count is not a factor of 4. This is probably a
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// bad partition information structure, but we'll continue on anyway.
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//
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if (PartitionCount % 4 != 0) {
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xdprintfEx (Depth, ("WARNING: Partition count should be a factor of 4.\n"));
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}
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xdprintfEx (Depth, ("PartitionCount: %d\n", PartitionCount));
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xdprintfEx (Depth, ("Signature: %8.8x\n\n", Signature));
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xdprintfEx (Depth+1, (" ORD Offset Length Type BI RP RW\n"));
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xdprintfEx (Depth+1, ("------------------------------------------------------------\n"));
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result = GetFieldOffset("nt!_DRIVE_LAYOUT_INFORMATION",
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"PartitionEntry[0]",
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&offset);
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if (result) {
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SCSIKD_PRINT_ERROR(result);
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return;
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}
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OffsetOfFirstPartitionInfo = offset;
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result = GetFieldOffset("nt!_DRIVE_LAYOUT_INFORMATION",
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"PartitionEntry[1]",
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&offset);
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if (result) {
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SCSIKD_PRINT_ERROR(result);
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return;
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}
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SizeOfPartitionInfo = offset - OffsetOfFirstPartitionInfo;
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PartAddress = Address + OffsetOfFirstPartitionInfo;
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for (i = 0; i < PartitionCount; i++) {
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if (CheckControlC()) {
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return;
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}
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DumpPartition(PartAddress, Detail, Depth+1, PartitionCount);
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PartAddress += SizeOfPartitionInfo;
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}
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}
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VOID
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DumpPartitionEx(
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IN ULONG64 Address,
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IN ULONG Detail,
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IN ULONG Depth,
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IN ULONG PartitionCount
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)
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/*++
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Routine Description:
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Dump a PARTITION_INFORMATION_EX structure.
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Arguments:
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Address - The address of the partition information structure to dump.
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Detail - The detail level. Currently unused.
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Depth - The depth to indent to.
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PartitionCount - The number of partitions. This is used to determine
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whether a particular partition ordinal is valid or not.
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Return Value:
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None.
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--*/
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{
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BOOL Succ;
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ULONG Size;
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ULONG result;
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ULONG offset;
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ULONG PartitionStyle;
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ULONG PartitionNumber;
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ULONG64 StartingOffset;
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ULONG64 PartitionLength;
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BOOLEAN RewritePartition;
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UCHAR MbrPartitionType;
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BOOLEAN MbrBootIndicator;
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BOOLEAN MbrRecognizedPartition;
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ULONG64 GptAttributes;
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GUID GptPartitionType;
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GUID GptPartitionId;
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ULONG64 AddrOfGuid;
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WCHAR GptName[36];
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InitTypeRead (Address, nt!_PARTITION_INFORMATION_EX);
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PartitionStyle = (ULONG) ReadField(PartitionStyle);
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if (PartitionStyle != PARTITION_STYLE_MBR &&
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PartitionStyle != PARTITION_STYLE_GPT) {
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SCSIKD_PRINT_ERROR(0);
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return;
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}
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PartitionNumber = (ULONG) ReadField(PartitionNumber);
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StartingOffset = ReadField(StartingOffset.QuadPart);
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PartitionLength = ReadField(PartitionLength.QuadPart);
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RewritePartition = (BOOLEAN) ReadField(RewritePartition);
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//
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// We use -1 to denote an invalid partition ordinal.
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//
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if (PartitionNumber >= PartitionCount) {
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PartitionNumber = (ULONG)-1;
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}
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InitTypeRead (Address, nt!_PARTITION_INFORMATION_EX);
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if (PartitionStyle == PARTITION_STYLE_MBR) {
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MbrPartitionType = (UCHAR) ReadField(Mbr.PartitionType);
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MbrBootIndicator = (BOOLEAN) ReadField(Mbr.BootIndicator);
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MbrRecognizedPartition = (BOOLEAN) ReadField(Mbr.RecognizedPartition);
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xdprintfEx (Depth, ("[%-2d] %-16I64x %-16I64x %2.2x %c %c %c\n",
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PartitionNumber,
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StartingOffset,
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PartitionLength,
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MbrPartitionType,
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MbrBootIndicator ? 'x' : ' ',
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MbrRecognizedPartition ? 'x' : ' ',
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RewritePartition ? 'x' : ' '
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));
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} else {
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GptAttributes = ReadField(Gpt.Attributes);
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result = GetFieldOffset("nt!_PARTITION_INFORMATION_EX",
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"Gpt.PartitionType",
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&offset);
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if (result) {
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SCSIKD_PRINT_ERROR(result);
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return;
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}
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AddrOfGuid = Address + offset;
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Succ = ReadMemory (
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AddrOfGuid,
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&GptPartitionType,
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sizeof (GUID),
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&Size
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);
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if (!Succ || Size != sizeof (GUID)) {
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SCSIKD_PRINT_ERROR(0);
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return;
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}
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//
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// PartitionId immediately follows the PartitionType. So all we have to do
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// is add sizeof(GUID) to the address and read PartitionId.
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//
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AddrOfGuid += sizeof(GUID);
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Succ = ReadMemory (
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AddrOfGuid,
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&GptPartitionId,
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sizeof (GUID),
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&Size
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);
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if (!Succ || Size != sizeof (GUID)) {
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SCSIKD_PRINT_ERROR(0);
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return;
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}
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//
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// Read in the Gpt.Name.
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//
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result = GetFieldOffset("nt!_PARTITION_INFORMATION_EX",
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"Gpt.Name",
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&offset);
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if (result) {
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SCSIKD_PRINT_ERROR(result);
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return;
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}
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Succ = ReadMemory (
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Address + offset,
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&GptName,
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sizeof (WCHAR) * 36,
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&Size
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);
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if (!Succ || Size != sizeof (GUID)) {
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SCSIKD_PRINT_ERROR(0);
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return;
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}
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xdprintfEx (Depth, ("[%-2d] %S\n",
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PartitionNumber, GptName));
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xdprintfEx (Depth, ("OFF %-16I64x LEN %-16I64x ATTR %-16I64x R/W %c\n",
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StartingOffset,
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PartitionLength,
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GptAttributes,
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RewritePartition ? 'T' : 'F'));
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xdprintfEx (Depth, ("TYPE %s\n",
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GuidToString (&GptPartitionType)));
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xdprintfEx (Depth, ("ID %s\n",
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GuidToString (&GptPartitionId)));
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xdprintfEx (Depth, ("\n"));
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}
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}
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VOID
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DumpDriveLayoutEx(
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IN ULONG64 Address,
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IN ULONG Detail,
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IN ULONG Depth
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)
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{
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ULONG result;
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BOOL Succ;
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ULONG Size;
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ULONG i;
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ULONG offset;
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ULONG64 AddrOfDiskId;
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ULONG PartitionStyle;
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ULONG PartitionCount;
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ULONG MbrSignature;
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GUID GptDiskId;
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ULONG64 GptStartingUsableOffset;
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ULONG64 GptUsableLength;
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ULONG GptMaxPartitionCount;
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ULONG SizeOfPartitionEntry;
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ULONG OffsetOfFirstPartitionEntry;
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InitTypeRead(Address, nt!_DRIVE_LAYOUT_INFORMATION_EX);
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PartitionStyle = (ULONG)ReadField(PartitionStyle);
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PartitionCount = (ULONG)ReadField(PartitionCount);
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MbrSignature = (ULONG)ReadField(Mbr.Signature);
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GptStartingUsableOffset = ReadField(Gpt.StartingUsableOffset.QuadPart);
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GptUsableLength = ReadField(Gpt.UsableLength.QuadPart);
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GptMaxPartitionCount = (ULONG)ReadField(Gpt.MaxPartitionCount);
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result = GetFieldOffset("nt!_DRIVE_LAYOUT_INFORMATION_EX",
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"Gpt.DiskId",
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&offset);
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if (result) {
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SCSIKD_PRINT_ERROR(result);
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return;
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}
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AddrOfDiskId = Address + offset;
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Succ = ReadMemory(
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AddrOfDiskId,
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&GptDiskId,
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sizeof(GUID),
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&Size);
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if (!Succ || Size != sizeof(GUID)) {
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SCSIKD_PRINT_ERROR(result);
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return;
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}
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xdprintfEx (Depth, ("\nDRIVE_LAYOUT_EX %p\n", Address));
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if (PartitionStyle != PARTITION_STYLE_MBR &&
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PartitionStyle != PARTITION_STYLE_GPT) {
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xdprintfEx (Depth, ("ERROR: invalid partition style %d\n", PartitionStyle));
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return;
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}
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if (PartitionStyle == PARTITION_STYLE_MBR &&
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PartitionCount % 4 != 0) {
|
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xdprintfEx (Depth, ("WARNING: Partition count is not a factor of 4, (%d)\n",
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PartitionCount));
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||
|
|
}
|
||
|
|
|
||
|
|
if (PartitionStyle == PARTITION_STYLE_MBR) {
|
||
|
|
|
||
|
|
xdprintfEx (Depth, ("Signature: %8.8x\n", MbrSignature));
|
||
|
|
xdprintfEx (Depth, ("PartitionCount %d\n\n", PartitionCount));
|
||
|
|
|
||
|
|
xdprintfEx (Depth+1, (" ORD Offset Length Type BI RP RW\n"));
|
||
|
|
xdprintfEx (Depth+1, ("------------------------------------------------------------\n"));
|
||
|
|
|
||
|
|
} else {
|
||
|
|
|
||
|
|
xdprintfEx (Depth, ("DiskId: %s\n", GuidToString (&GptDiskId)));
|
||
|
|
xdprintfEx (Depth, ("StartingUsableOffset: %I64x\n", GptStartingUsableOffset));
|
||
|
|
xdprintfEx (Depth, ("UsableLength: %I64x\n", GptUsableLength));
|
||
|
|
xdprintfEx (Depth, ("MaxPartitionCount: %d\n", GptMaxPartitionCount));
|
||
|
|
xdprintfEx (Depth, ("PartitionCount %d\n\n", PartitionCount));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
result = GetFieldOffset("nt!_DRIVE_LAYOUT_INFORMATION_EX",
|
||
|
|
"PartitionEntry[i]",
|
||
|
|
&offset);
|
||
|
|
if (result) {
|
||
|
|
SCSIKD_PRINT_ERROR(result);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
OffsetOfFirstPartitionEntry = offset;
|
||
|
|
Address += offset;
|
||
|
|
|
||
|
|
result = GetFieldOffset("nt!_DRIVE_LAYOUT_INFORMATION_EX",
|
||
|
|
"PartitionEntry[1]",
|
||
|
|
&offset);
|
||
|
|
if (result) {
|
||
|
|
SCSIKD_PRINT_ERROR(result);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
SizeOfPartitionEntry = offset - OffsetOfFirstPartitionEntry;
|
||
|
|
|
||
|
|
for (i = 0; i < PartitionCount; i++) {
|
||
|
|
|
||
|
|
if (CheckControlC()) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
DumpPartitionEx(Address, Detail, Depth+1, PartitionCount);
|
||
|
|
|
||
|
|
Address += SizeOfPartitionEntry;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
DECLARE_API (layout)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Dump a DRIVE_LAYOUT structure with all it's partitions.
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
args - A string containing the address of the DRIVE_LAYOUT structure to
|
||
|
|
be dumped.
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
None.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
ULONG64 Address;
|
||
|
|
ULONG Detail = 0;
|
||
|
|
|
||
|
|
GetAddressAndDetailLevel64 (args, &Address, &Detail);
|
||
|
|
DumpDriveLayout (Address, Detail, 0);
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
DECLARE_API (layoutex)
|
||
|
|
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Dump a DRIVE_LAYOUT_EX structure and it's partitions.
|
||
|
|
|
||
|
|
Usage:
|
||
|
|
|
||
|
|
layoutex <address>
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
args - A string containing the address of the DRIVE_LAYOUT_EX structure
|
||
|
|
to be dumped.
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
None.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
ULONG64 Address;
|
||
|
|
ULONG Detail = 0;
|
||
|
|
|
||
|
|
GetAddressAndDetailLevel64 (args, &Address, &Detail);
|
||
|
|
DumpDriveLayoutEx (Address, Detail, 0);
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
DECLARE_API (part)
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Dump a PARTITION_INFORMATION structure.
|
||
|
|
|
||
|
|
Usage:
|
||
|
|
|
||
|
|
part <address>
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
args - A string containing the address of the PARTITION_INFORMATION
|
||
|
|
structure to be dumped.
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
None.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
ULONG64 Address;
|
||
|
|
ULONG Detail = 0;
|
||
|
|
|
||
|
|
GetAddressAndDetailLevel64 (args, &Address, &Detail);
|
||
|
|
DumpPartition (Address, Detail, 0, 0);
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
DECLARE_API (partex)
|
||
|
|
|
||
|
|
|
||
|
|
/*++
|
||
|
|
|
||
|
|
Routine Description:
|
||
|
|
|
||
|
|
Dump a PARTITION_INFORMATION_EX structure.
|
||
|
|
|
||
|
|
Usage:
|
||
|
|
|
||
|
|
partex <address>
|
||
|
|
|
||
|
|
Arguments:
|
||
|
|
|
||
|
|
args - A string containing the address of the PARTITION_INFORMATION_EX
|
||
|
|
structure to be dumped.
|
||
|
|
|
||
|
|
Return Value:
|
||
|
|
|
||
|
|
None.
|
||
|
|
|
||
|
|
--*/
|
||
|
|
|
||
|
|
{
|
||
|
|
ULONG64 Address;
|
||
|
|
ULONG Detail = 0;
|
||
|
|
|
||
|
|
GetAddressAndDetailLevel64 (args, &Address, &Detail);
|
||
|
|
DumpPartitionEx (Address, Detail, 0, 0);
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|