From c606f0866c3a2a5db3ef9bc41738ef33eb9612a9 Mon Sep 17 00:00:00 2001
From: Mounir IDRASSI <mounir.idrassi@idrix.fr>
Date: Sat, 22 Jun 2013 16:16:13 +0200
Subject: Add original TrueCrypt 7.1a sources

---
 src/Boot/Windows/BootDiskIo.h | 116 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 src/Boot/Windows/BootDiskIo.h

(limited to 'src/Boot/Windows/BootDiskIo.h')

diff --git a/src/Boot/Windows/BootDiskIo.h b/src/Boot/Windows/BootDiskIo.h
new file mode 100644
index 00000000..cc84c018
--- /dev/null
+++ b/src/Boot/Windows/BootDiskIo.h
@@ -0,0 +1,116 @@
+/*
+ Copyright (c) 2008-2011 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#ifndef TC_HEADER_Boot_BootDiskIo
+#define TC_HEADER_Boot_BootDiskIo
+
+#include "Bios.h"
+#include "BootDebug.h"
+#include "BootDefs.h"
+
+#define TC_MAX_BIOS_DISK_IO_RETRIES 5
+
+enum
+{
+	BiosResultEccCorrected = 0x11
+};
+
+#pragma pack(1)
+
+struct PartitionEntryMBR
+{
+	byte BootIndicator;
+
+	byte StartHead;
+	byte StartCylSector;
+	byte StartCylinder;
+
+	byte Type;
+
+	byte EndHead;
+	byte EndSector;
+	byte EndCylinder;
+
+	uint32 StartLBA;
+	uint32 SectorCountLBA;
+};
+
+struct MBR
+{
+	byte Code[446];
+	PartitionEntryMBR Partitions[4];
+	uint16 Signature;
+};
+
+struct BiosLbaPacket
+{
+	byte Size;
+	byte Reserved;
+	uint16 SectorCount;
+	uint32 Buffer;
+	uint64 Sector;
+};
+
+#pragma pack()
+
+
+struct ChsAddress
+{
+	uint16 Cylinder;
+	byte Head;
+	byte Sector;
+};
+
+struct Partition
+{
+	byte Number;
+	byte Drive;
+	bool Active;
+	uint64 EndSector;
+	bool Primary;
+	uint64 SectorCount;
+	uint64 StartSector;
+	byte Type;
+};
+
+struct DriveGeometry
+{
+	uint16 Cylinders;
+	byte Heads;
+	byte Sectors;
+};
+
+
+#ifdef TC_BOOT_DEBUG_ENABLED
+void AcquireSectorBuffer ();
+void ReleaseSectorBuffer ();
+#else
+#	define AcquireSectorBuffer()
+#	define ReleaseSectorBuffer()
+#endif
+
+void ChsToLba (const DriveGeometry &geometry, const ChsAddress &chs, uint64 &lba);
+bool GetActivePartition (byte drive);
+BiosResult GetDriveGeometry (byte drive, DriveGeometry &geometry, bool silent = false);
+BiosResult GetDrivePartitions (byte drive, Partition *partitionArray, size_t partitionArrayCapacity, size_t &partitionCount, bool activeOnly = false, Partition *findPartitionFollowingThis = nullptr, bool silent = false);
+bool IsLbaSupported (byte drive);
+void LbaToChs (const DriveGeometry &geometry, const uint64 &lba, ChsAddress &chs);
+void Print (const ChsAddress &chs);
+void PrintDiskError (BiosResult error, bool write, byte drive, const uint64 *sector, const ChsAddress *chs = nullptr);
+void PrintSectorCountInMB (const uint64 &sectorCount);
+BiosResult ReadWriteMBR (bool write, byte drive, bool silent = false);
+BiosResult ReadSectors (uint16 bufferSegment, uint16 bufferOffset, byte drive, const uint64 &sector, uint16 sectorCount, bool silent = false);
+BiosResult ReadSectors (byte *buffer, byte drive, const uint64 &sector, uint16 sectorCount, bool silent = false);
+BiosResult ReadSectors (byte *buffer, byte drive, const ChsAddress &chs, byte sectorCount, bool silent = false);
+BiosResult ReadWriteSectors (bool write, uint16 bufferSegment, uint16 bufferOffset, byte drive, const uint64 &sector, uint16 sectorCount, bool silent);
+BiosResult WriteSectors (byte *buffer, byte drive, const uint64 &sector, uint16 sectorCount, bool silent = false);
+BiosResult WriteSectors (byte *buffer, byte drive, const ChsAddress &chs, byte sectorCount, bool silent = false);
+
+extern byte SectorBuffer[TC_LB_SIZE];
+
+#endif // TC_HEADER_Boot_BootDiskIo
-- 
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