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Fixed returned container partition starting offsets in xHalIoReadPartitionTable().

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svn path=/trunk/; revision=5508
This commit is contained in:
Eric Kohl 2003-08-10 16:49:07 +00:00
parent 279af692f5
commit 65a5a3f831
1 changed files with 50 additions and 46 deletions
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94
reactos/ntoskrnl/io/xhaldrv.c
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@ -1,4 +1,4 @@
/* $Id: xhaldrv.c,v 1.34 2003/07/17 16:57:39 silverblade Exp $
/* $Id: xhaldrv.c,v 1.35 2003/08/10 16:49:07 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -850,6 +850,18 @@ xHalIoReadPartitionTable(PDEVICE_OBJECT DeviceObject,
for (i = 0; i < PARTITION_TBL_SIZE; i++)
{
if (IsContainerPartition(PartitionSector->Partition[i].PartitionType))
{
ExtendedFound = TRUE;
if ((ULONGLONG) containerOffset.QuadPart == (ULONGLONG) 0)
{
containerOffset = PartitionOffset;
}
nextPartitionOffset.QuadPart = (ULONGLONG) containerOffset.QuadPart +
(ULONGLONG) PartitionSector->Partition[i].StartingBlock *
(ULONGLONG) SectorSize;
}
if ((ReturnRecognizedPartitions == FALSE) ||
((ReturnRecognizedPartitions == TRUE) &&
IsRecognizedPartition(PartitionSector->Partition[i].PartitionType)))
@ -858,6 +870,7 @@ xHalIoReadPartitionTable(PDEVICE_OBJECT DeviceObject,
DPRINT("Partition %u: Normal Partition\n", i);
Count = LayoutBuffer->PartitionCount;
DPRINT("Logical Partition %u\n", Count);
if (PartitionSector->Partition[i].StartingBlock == 0)
{
LayoutBuffer->PartitionEntry[Count].StartingOffset.QuadPart = 0;
@ -865,7 +878,9 @@ xHalIoReadPartitionTable(PDEVICE_OBJECT DeviceObject,
else if (IsContainerPartition(PartitionSector->Partition[i].PartitionType))
{
LayoutBuffer->PartitionEntry[Count].StartingOffset.QuadPart =
(ULONGLONG)PartitionOffset.QuadPart;
(ULONGLONG) containerOffset.QuadPart +
(ULONGLONG) PartitionSector->Partition[i].StartingBlock *
(ULONGLONG) SectorSize;
}
else
{
@ -905,19 +920,8 @@ xHalIoReadPartitionTable(PDEVICE_OBJECT DeviceObject,
LayoutBuffer->PartitionCount++;
}
if (IsContainerPartition(PartitionSector->Partition[i].PartitionType))
{
ExtendedFound = TRUE;
if ((ULONGLONG) containerOffset.QuadPart == (ULONGLONG) 0)
{
containerOffset = PartitionOffset;
}
nextPartitionOffset.QuadPart = (ULONGLONG) containerOffset.QuadPart +
(ULONGLONG) PartitionSector->Partition[i].StartingBlock *
(ULONGLONG) SectorSize;
}
}
PartitionOffset = nextPartitionOffset;
}
while (ExtendedFound == TRUE);
@ -1022,7 +1026,7 @@ xHalIoWritePartitionTable(IN PDEVICE_OBJECT DeviceObject,
for (i = 0; i < PartitionBuffer->PartitionCount; i++)
{
if (PartitionBuffer->PartitionEntry[i].PartitionType != PARTITION_ENTRY_UNUSED)
{
{
/*
* CHS formulas:
* x = LBA DIV SectorsPerTrack
@ -1074,20 +1078,20 @@ xHalIoWritePartitionTable(IN PDEVICE_OBJECT DeviceObject,
PartitionSector->Partition[i].EndingCylinder = EndCylinder & 0xff;
PartitionSector->Partition[i].EndingHead = EndHead;
PartitionSector->Partition[i].EndingSector = ((EndCylinder & 0x0300) >> 2) + (EndSector & 0x3f);
}
}
else
{
PartitionSector->Partition[i].BootFlags = 0;
PartitionSector->Partition[i].PartitionType = PARTITION_ENTRY_UNUSED;
PartitionSector->Partition[i].StartingHead = 0;
PartitionSector->Partition[i].StartingSector = 0;
PartitionSector->Partition[i].StartingCylinder = 0;
PartitionSector->Partition[i].EndingHead = 0;
PartitionSector->Partition[i].EndingSector = 0;
PartitionSector->Partition[i].EndingCylinder = 0;
PartitionSector->Partition[i].StartingBlock = 0;
PartitionSector->Partition[i].SectorCount = 0;
}
{
PartitionSector->Partition[i].BootFlags = 0;
PartitionSector->Partition[i].PartitionType = PARTITION_ENTRY_UNUSED;
PartitionSector->Partition[i].StartingHead = 0;
PartitionSector->Partition[i].StartingSector = 0;
PartitionSector->Partition[i].StartingCylinder = 0;
PartitionSector->Partition[i].EndingHead = 0;
PartitionSector->Partition[i].EndingSector = 0;
PartitionSector->Partition[i].EndingCylinder = 0;
PartitionSector->Partition[i].StartingBlock = 0;
PartitionSector->Partition[i].SectorCount = 0;
}
}
@ -1104,23 +1108,23 @@ xHalIoWritePartitionTable(IN PDEVICE_OBJECT DeviceObject,
}
#ifndef NDEBUG
for (i = 0; i < PARTITION_TBL_SIZE; i++)
{
DPRINT1(" %d: flags:%2x type:%x start:%d:%d:%d end:%d:%d:%d stblk:%d count:%d\n",
i,
PartitionSector->Partition[i].BootFlags,
PartitionSector->Partition[i].PartitionType,
PartitionSector->Partition[i].StartingHead,
PartitionSector->Partition[i].StartingSector & 0x3f,
(((PartitionSector->Partition[i].StartingSector) & 0xc0) << 2) +
PartitionSector->Partition[i].StartingCylinder,
PartitionSector->Partition[i].EndingHead,
PartitionSector->Partition[i].EndingSector & 0x3f,
(((PartitionSector->Partition[i].EndingSector) & 0xc0) << 2) +
PartitionSector->Partition[i].EndingCylinder,
PartitionSector->Partition[i].StartingBlock,
PartitionSector->Partition[i].SectorCount);
}
for (i = 0; i < PARTITION_TBL_SIZE; i++)
{
DPRINT1(" %d: flags:%2x type:%x start:%d:%d:%d end:%d:%d:%d stblk:%d count:%d\n",
i,
PartitionSector->Partition[i].BootFlags,
PartitionSector->Partition[i].PartitionType,
PartitionSector->Partition[i].StartingHead,
PartitionSector->Partition[i].StartingSector & 0x3f,
(((PartitionSector->Partition[i].StartingSector) & 0xc0) << 2) +
PartitionSector->Partition[i].StartingCylinder,
PartitionSector->Partition[i].EndingHead,
PartitionSector->Partition[i].EndingSector & 0x3f,
(((PartitionSector->Partition[i].EndingSector) & 0xc0) << 2) +
PartitionSector->Partition[i].EndingCylinder,
PartitionSector->Partition[i].StartingBlock,
PartitionSector->Partition[i].SectorCount);
}
#endif
ExFreePool(PartitionSector);