windows-nt/Source/XPSP1/NT/base/fs/utils/diskedit/indxedit.cxx

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2020-09-26 03:20:57 -05:00
#include "ulib.hxx"
#include "untfs.hxx"
#include "indxedit.hxx"
#include "frsstruc.hxx"
#include "ntfssa.hxx"
#include "attrrec.hxx"
#include "cmem.hxx"
#include "ntfssa.hxx"
extern "C" {
#include <stdio.h>
}
///////////////////////////////////////////////////////////////////////////////
// Common support for USA fixups //
///////////////////////////////////////////////////////////////////////////////
BOOLEAN
PostReadMultiSectorFixup(
IN OUT PVOID MultiSectorBuffer,
IN ULONG BufferSize
)
/*++
Routine Description:
This routine first verifies that the first element of the
update sequence array is written at the end of every
SEQUENCE_NUMBER_STRIDE bytes. If not, then this routine
returns FALSE.
Otherwise this routine swaps the following elements in the
update sequence array into the appropriate positions in the
multi sector buffer.
This routine will also check to make sure that the update
sequence array is valid and that the BufferSize is appropriate
for this size of update sequence array. Otherwise, this
routine will not update the array sequence and return TRUE.
Arguments:
MultiSectorBuffer - Supplies the buffer to be updated.
BufferSize - Supplies the number of bytes in this
buffer.
Return Value:
FALSE - The last write to this buffer failed.
TRUE - There is no evidence that this buffer is bad.
--*/
{
PUNTFS_MULTI_SECTOR_HEADER pheader;
USHORT i, size, offset;
PUPDATE_SEQUENCE_NUMBER parray, pnumber;
pheader = (PUNTFS_MULTI_SECTOR_HEADER) MultiSectorBuffer;
size = pheader->UpdateSequenceArraySize;
offset = pheader->UpdateSequenceArrayOffset;
if (BufferSize%SEQUENCE_NUMBER_STRIDE ||
offset%sizeof(UPDATE_SEQUENCE_NUMBER) ||
offset + size*sizeof(UPDATE_SEQUENCE_NUMBER) > BufferSize ||
BufferSize/SEQUENCE_NUMBER_STRIDE + 1 != size) {
return TRUE;
}
parray = (PUPDATE_SEQUENCE_NUMBER) ((PCHAR) pheader + offset);
for (i = 1; i < size; i++) {
pnumber = (PUPDATE_SEQUENCE_NUMBER)
((PCHAR) pheader + (i*SEQUENCE_NUMBER_STRIDE -
sizeof(UPDATE_SEQUENCE_NUMBER)));
if (*pnumber != parray[0]) {
return FALSE;
}
*pnumber = parray[i];
}
return TRUE;
}
VOID
PreWriteMultiSectorFixup(
IN OUT PVOID MultiSectorBuffer,
IN ULONG BufferSize
)
/*++
Routine Description:
This routine first checks to see if the update sequence
array is valid. If it is then this routine increments the
first element of the update sequence array. It then
writes the value of the first element into the buffer at
the end of every SEQUENCE_NUMBER_STRIDE bytes while
saving the old values of those locations in the following
elements of the update sequence arrary.
Arguments:
MultiSectorBuffer - Supplies the buffer to be updated.
BufferSize - Supplies the number of bytes in this
buffer.
Return Value:
None.
--*/
{
PUNTFS_MULTI_SECTOR_HEADER pheader;
USHORT i, size, offset;
PUPDATE_SEQUENCE_NUMBER parray, pnumber;
pheader = (PUNTFS_MULTI_SECTOR_HEADER) MultiSectorBuffer;
size = pheader->UpdateSequenceArraySize;
offset = pheader->UpdateSequenceArrayOffset;
if (BufferSize%SEQUENCE_NUMBER_STRIDE ||
offset%sizeof(UPDATE_SEQUENCE_NUMBER) ||
offset + size*sizeof(UPDATE_SEQUENCE_NUMBER) > BufferSize ||
BufferSize/SEQUENCE_NUMBER_STRIDE + 1 != size) {
return;
}
parray = (PUPDATE_SEQUENCE_NUMBER) ((PCHAR) pheader + offset);
parray[0]++;
for (i = 1; i < size; i++) {
pnumber = (PUPDATE_SEQUENCE_NUMBER)
((PCHAR) pheader + (i*SEQUENCE_NUMBER_STRIDE -
sizeof(UPDATE_SEQUENCE_NUMBER)));
parray[i] = *pnumber;
*pnumber = parray[0];
}
}
///////////////////////////////////////////////////////////////////////////////
// Common support for viewing indexes //
///////////////////////////////////////////////////////////////////////////////
BOOLEAN
INDEX_BUFFER_BASE::Initialize(
IN HWND WindowHandle,
IN INT ClientHeight,
IN INT ClientWidth,
IN PLOG_IO_DP_DRIVE Drive
)
{
TEXTMETRIC textmetric;
HDC hdc;
NTFS_SA ntfssa;
MESSAGE msg;
hdc = GetDC(WindowHandle);
if (hdc == NULL)
return FALSE;
GetTextMetrics(hdc, &textmetric);
ReleaseDC(WindowHandle, hdc);
_buffer = NULL;
_size = 0;
return VERTICAL_TEXT_SCROLL::Initialize(
WindowHandle,
0,
ClientHeight,
ClientWidth,
textmetric.tmExternalLeading + textmetric.tmHeight,
textmetric.tmMaxCharWidth);
}
VOID
INDEX_BUFFER_BASE::SetBuf(
IN HWND WindowHandle,
IN OUT PVOID Buffer,
IN ULONG Size
)
{
_buffer = Buffer;
_size = Size;
SetScrollPos(WindowHandle, SB_VERT, 0, FALSE);
}
VOID
INDEX_BUFFER_BASE::KeyUp(
IN HWND WindowHandle
)
{
ScrollUp(WindowHandle);
}
VOID
INDEX_BUFFER_BASE::KeyDown(
IN HWND WindowHandle
)
{
ScrollDown(WindowHandle);
}
VOID
INDEX_BUFFER_BASE::Paint(
IN HDC DeviceContext,
IN RECT InvalidRect,
IN HWND WindowHandle
)
{
TCHAR buf[1024];
SelectObject(DeviceContext, GetStockObject(ANSI_FIXED_FONT));
if (!_buffer || !_size) {
return;
}
if (0 != memcmp(_buffer, "INDX", 4) && 0 != memcmp(_buffer, "BAAD", 4)) {
PaintIndexRoot(DeviceContext, InvalidRect, WindowHandle);
return;
}
INT BytesRemaining = _size;
PVOID CurrentBuffer = _buffer;
INT CurrentLine = 0;
ULONG BufferNumber = 0;;
while( BytesRemaining ) {
// Resolve the update sequence array. Note that we must
// resolve it back before we exit this function, or else
// write will get hosed.
//
PINDEX_ALLOCATION_BUFFER IndexBuffer =
(PINDEX_ALLOCATION_BUFFER)CurrentBuffer;
INT BytesPerIndexBuffer =
FIELD_OFFSET( INDEX_ALLOCATION_BUFFER, IndexHeader ) +
IndexBuffer->IndexHeader.BytesAvailable;
ULONG CurrentOffset =
BufferNumber * BytesPerIndexBuffer +
FIELD_OFFSET( INDEX_ALLOCATION_BUFFER, IndexHeader );
PostReadMultiSectorFixup( CurrentBuffer, BytesPerIndexBuffer );
swprintf(buf, TEXT("Signature: %c%c%c%c"),
IndexBuffer->MultiSectorHeader.Signature[0],
IndexBuffer->MultiSectorHeader.Signature[1],
IndexBuffer->MultiSectorHeader.Signature[2],
IndexBuffer->MultiSectorHeader.Signature[3]);
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf(buf, TEXT("Update sequence array offset: %x"),
IndexBuffer->MultiSectorHeader.UpdateSequenceArrayOffset);
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf(buf, TEXT("Update sequence array size: %x"),
IndexBuffer->MultiSectorHeader.UpdateSequenceArraySize);
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf(buf, TEXT("This VCN: %x"), IndexBuffer->ThisVcn.GetLowPart() );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT("") );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf(buf, TEXT("INDEX HEADER at offset %x"), CurrentOffset );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" FirstIndexEntry: \t%x"),
IndexBuffer->IndexHeader.FirstIndexEntry );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" FirstFreeByte: \t%x"),
IndexBuffer->IndexHeader.FirstFreeByte );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" BytesAvailable: \t%x"),
IndexBuffer->IndexHeader.BytesAvailable );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" Flags: \t\t%x"), IndexBuffer->IndexHeader.Flags );
if( IndexBuffer->IndexHeader.Flags & INDEX_NODE ) {
wcscat( buf, TEXT("\t INDEX_NODE "));
}
WriteLine( DeviceContext, CurrentLine++, buf );
//
// Don't print the Update Sequence Array--it's not interesting.
//
//
// Now iterate through the index entries:
//
CurrentOffset += IndexBuffer->IndexHeader.FirstIndexEntry;
WalkAndPaintIndexRecords( DeviceContext, CurrentOffset, CurrentLine );
PreWriteMultiSectorFixup( CurrentBuffer, BytesPerIndexBuffer );
if( BytesRemaining <= BytesPerIndexBuffer ) {
BytesRemaining = 0;
} else {
BytesRemaining -= BytesPerIndexBuffer;
CurrentBuffer = (PBYTE)CurrentBuffer + BytesPerIndexBuffer;
BufferNumber++;
WriteLine( DeviceContext, CurrentLine++, TEXT("") );
WriteLine( DeviceContext, CurrentLine++, TEXT("****************************************") );
WriteLine( DeviceContext, CurrentLine++, TEXT("") );
WriteLine( DeviceContext, CurrentLine++, TEXT("****************************************") );
WriteLine( DeviceContext, CurrentLine++, TEXT("") );
}
}
SetRange(WindowHandle, CurrentLine + 50);
}
VOID
INDEX_BUFFER_BASE::PaintIndexRoot(
IN HDC DeviceContext,
IN RECT InvalidRect,
IN HWND WindowHandle
)
{
TCHAR buf[1024];
INT BytesRemaining = _size;
PVOID CurrentBuffer = _buffer;
INT CurrentLine = 0;
ULONG BufferNumber = 0;
PINDEX_ROOT IndexRoot = (PINDEX_ROOT)CurrentBuffer;
ULONG BytesPerIndexRoot =
FIELD_OFFSET(INDEX_ROOT, IndexHeader ) +
IndexRoot->IndexHeader.BytesAvailable;
ULONG CurrentOffset = FIELD_OFFSET(INDEX_ROOT, IndexHeader);
swprintf(buf, TEXT("Attribute type code: %x"),
IndexRoot->IndexedAttributeType);
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf(buf, TEXT("Collation rule: %x"), IndexRoot->CollationRule);
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf(buf, TEXT("Bytes Per Index Buffer: %x"),
IndexRoot->BytesPerIndexBuffer);
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf(buf, TEXT("Clusters Per Index Buffer: %x"),
IndexRoot->ClustersPerIndexBuffer);
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf(buf, TEXT("INDEX HEADER at offset %x"), CurrentOffset );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" FirstIndexEntry: \t%x"),
IndexRoot->IndexHeader.FirstIndexEntry );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" FirstFreeByte: \t%x"),
IndexRoot->IndexHeader.FirstFreeByte );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" BytesAvailable: \t%x"),
IndexRoot->IndexHeader.BytesAvailable );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" Flags: \t\t%x"), IndexRoot->IndexHeader.Flags );
if( IndexRoot->IndexHeader.Flags & INDEX_NODE ) {
wcscat( buf, TEXT("\t INDEX_NODE "));
}
WriteLine( DeviceContext, CurrentLine++, buf );
//
// Now iterate through the index entries:
//
CurrentOffset += IndexRoot->IndexHeader.FirstIndexEntry;
WalkAndPaintIndexRecords( DeviceContext, CurrentOffset, CurrentLine );
}
VOID
INDEX_BUFFER_BASE::WalkAndPaintIndexRecords(
IN HDC DeviceContext,
IN ULONG Offset,
IN OUT int &CurrentLine
)
{
TCHAR buf[1024];
//
// Iterate through the index entries:
//
while( Offset < _size ) {
PINDEX_ENTRY CurrentEntry = (PINDEX_ENTRY)((PBYTE)_buffer + Offset);
//
// check for corruption that will mess up the loop--if
// the length of the current entry is zero or would overflow
// the buffer, exit.
//
if( CurrentEntry->Length == 0 ||
Offset + CurrentEntry->Length > _size ) {
// Don't need to comment on the corruption--the user
// can recognize it by noting that the last entry
// is not an END entry.
//
break;
}
swprintf( buf, TEXT("") );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT("INDEX ENTRY at offset %x"), Offset );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" Length: \t %x"), CurrentEntry->Length );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" Value Length: %x"), CurrentEntry->AttributeLength );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" Flags: \t %x"), CurrentEntry->Flags );
if( CurrentEntry->Flags & INDEX_ENTRY_NODE ) {
wcscat( buf, TEXT(" INDEX_ENTRY_NODE") );
}
if( CurrentEntry->Flags & INDEX_ENTRY_END ) {
wcscat( buf, TEXT(" INDEX_ENTRY_END") );
}
WriteLine( DeviceContext, CurrentLine++, buf );
if( CurrentEntry->Flags & INDEX_ENTRY_NODE ) {
swprintf( buf, TEXT(" Downpointer: %x"), (GetDownpointer(CurrentEntry)).GetLowPart() );
WriteLine( DeviceContext, CurrentLine++, buf );
}
//
// If the current entry is the END entry, we're done.
//
if( CurrentEntry->Flags & INDEX_ENTRY_END ) {
break;
}
if( sizeof( INDEX_ENTRY ) + CurrentEntry->AttributeLength >
CurrentEntry->Length ) {
swprintf( buf, TEXT(" ***Attribute value overflows entry.") );
WriteLine( DeviceContext, CurrentLine++, buf );
} else {
PaintIndexRecord( DeviceContext, CurrentEntry, CurrentLine );
}
Offset += CurrentEntry->Length;
}
}
///////////////////////////////////////////////////////////////////////////////
// Support for viewing namespace indexes //
///////////////////////////////////////////////////////////////////////////////
VOID
NAME_INDEX_BUFFER_EDIT::PaintIndexRecord (
IN HDC DeviceContext,
IN PINDEX_ENTRY CurrentEntry,
IN OUT int & CurrentLine
)
{
TCHAR buf[1024];
PFILE_NAME FileName;
ULONG i, j;
swprintf( buf, TEXT(" File Reference (FRS, Seq No): %x, %x"),
CurrentEntry->FileReference.LowPart,
CurrentEntry->FileReference.SequenceNumber );
WriteLine( DeviceContext, CurrentLine++, buf );
// This had better be a file name attribute, since
// that's how I'll display it.
//
swprintf( buf, TEXT(" FILE NAME at offset %x"),
(PCHAR) CurrentEntry - (PCHAR) _buffer + sizeof( INDEX_ENTRY ) );
FileName = (PFILE_NAME)( (PBYTE)CurrentEntry + sizeof(INDEX_ENTRY) );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" Parent Directory (FRS, Seq No): %x, %x"),
FileName->ParentDirectory.LowPart,
FileName->ParentDirectory.SequenceNumber );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" Name Length: %x"), FileName->FileNameLength );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" Flags: \t %x"), FileName->Flags );
if( FileName->Flags & FILE_NAME_DOS ) {
wcscat( buf, TEXT(" D") );
}
if( FileName->Flags & FILE_NAME_NTFS ) {
wcscat( buf, TEXT(" N") );
}
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT(" File name: ") );
j = wcslen( buf );
for( i = 0; i < FileName->FileNameLength; i++ ) {
buf[i+j] = (TCHAR)(FileName->FileName[i]);
}
buf[FileName->FileNameLength+j] = 0;
WriteLine( DeviceContext, CurrentLine++, buf );
}
///////////////////////////////////////////////////////////////////////////////
// Support for viewing Security Id indexes //
///////////////////////////////////////////////////////////////////////////////
VOID
SECURITY_ID_INDEX_BUFFER_EDIT::PaintIndexRecord(
IN HDC DeviceContext,
IN PINDEX_ENTRY CurrentEntry,
IN OUT int & CurrentLine
)
{
TCHAR buf[1024];
//
// This had better be a security id index record. The format of
// the record is:
//
// INDEX_ENTRY
// DataOffset
// DataLength
// SECURITY_ID
// SECURITY_DESCRIPTOR_HEADER
//
swprintf( buf, TEXT( " DataOffset %x" ), CurrentEntry->DataOffset );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " DataLength %x" ), CurrentEntry->DataLength );
WriteLine( DeviceContext, CurrentLine++, buf );
PULONG SecurityId = (PULONG) ((PBYTE)CurrentEntry + sizeof( INDEX_ENTRY ));
PSECURITY_DESCRIPTOR_HEADER Header =
(PSECURITY_DESCRIPTOR_HEADER) ((PBYTE)CurrentEntry + CurrentEntry->DataOffset);
swprintf( buf, TEXT( " Key Security Id %08x" ), *SecurityId );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " HashKey.Hash %08x" ), Header->HashKey.Hash );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " HashKey.SecurityId %08x" ), Header->HashKey.SecurityId );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " Header.Offset %I64x" ), Header->Offset );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " Header.Length %x" ), Header->Length );
WriteLine( DeviceContext, CurrentLine++, buf );
}
///////////////////////////////////////////////////////////////////////////////
// Support for viewing Security Hash indexes //
///////////////////////////////////////////////////////////////////////////////
VOID
SECURITY_HASH_INDEX_BUFFER_EDIT::PaintIndexRecord(
IN HDC DeviceContext,
IN PINDEX_ENTRY CurrentEntry,
IN OUT int & CurrentLine
)
{
TCHAR buf[1024];
//
// This had better be a security id index record. The format of
// the record is:
//
// INDEX_ENTRY
// DataOffset
// DataLength
// SECURITY_HASHKEY
// SECURITY_DESCRIPTOR_HEADER
//
swprintf( buf, TEXT( " DataOffset %x" ), CurrentEntry->DataOffset );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " DataLength %x" ), CurrentEntry->DataLength );
WriteLine( DeviceContext, CurrentLine++, buf );
PSECURITY_HASH_KEY HashKey = (PSECURITY_HASH_KEY) ((PBYTE)CurrentEntry + sizeof( INDEX_ENTRY ));
PSECURITY_DESCRIPTOR_HEADER Header =
(PSECURITY_DESCRIPTOR_HEADER) ((PBYTE)CurrentEntry + CurrentEntry->DataOffset);
swprintf( buf, TEXT( " HashKey.Hash %08x" ), HashKey->Hash );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " HashKey.SecurityId %08x" ), HashKey->SecurityId );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " HashKey.Hash %08x" ), Header->HashKey.Hash );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " HashKey.SecurityId %08x" ), Header->HashKey.SecurityId );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " Header.Offset %I64x" ), Header->Offset );
WriteLine( DeviceContext, CurrentLine++, buf );
swprintf( buf, TEXT( " Header.Length %x" ), Header->Length );
WriteLine( DeviceContext, CurrentLine++, buf );
}