diff options
Diffstat (limited to 'src/Boot/Windows/BootEncryptedIo.cpp')
-rw-r--r-- | src/Boot/Windows/BootEncryptedIo.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/Boot/Windows/BootEncryptedIo.cpp b/src/Boot/Windows/BootEncryptedIo.cpp index 8ca55635..24fbbbd0 100644 --- a/src/Boot/Windows/BootEncryptedIo.cpp +++ b/src/Boot/Windows/BootEncryptedIo.cpp @@ -1,109 +1,109 @@ /* Derived from source code of TrueCrypt 7.1a, which is Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed by the TrueCrypt License 3.0. Modifications and additions to the original source code (contained in this file) and all other portions of this file are Copyright (c) 2013-2017 IDRIX and are governed by the Apache License 2.0 the full text of which is contained in the file License.txt included in VeraCrypt binary and source code distribution packages. */ #include "Crypto.h" #include "Platform.h" #include "BootConfig.h" #include "BootDebug.h" #include "BootDefs.h" #include "BootDiskIo.h" #include "BootEncryptedIo.h" -BiosResult ReadEncryptedSectors (uint16 destSegment, uint16 destOffset, byte drive, uint64 sector, uint16 sectorCount) +BiosResult ReadEncryptedSectors (uint16 destSegment, uint16 destOffset, uint8 drive, uint64 sector, uint16 sectorCount) { BiosResult result; bool decrypt = true; if (BootCryptoInfo->hiddenVolume) { if (ReadWritePartiallyCoversEncryptedArea (sector, sectorCount)) return BiosResultInvalidFunction; if (sector >= EncryptedVirtualPartition.StartSector && sector <= EncryptedVirtualPartition.EndSector) { // Remap the request to the hidden volume sector -= EncryptedVirtualPartition.StartSector; sector += HiddenVolumeStartSector; } else decrypt = false; } result = ReadSectors (destSegment, destOffset, drive, sector, sectorCount); if (result != BiosResultSuccess || !decrypt) return result; if (BootCryptoInfo->hiddenVolume) { // Convert sector number to data unit number of the hidden volume sector -= HiddenVolumeStartSector; sector += PimValueOrHiddenVolumeStartUnitNo; } if (drive == EncryptedVirtualPartition.Drive) { while (sectorCount-- > 0) { if (BootCryptoInfo->hiddenVolume || (sector >= EncryptedVirtualPartition.StartSector && sector <= EncryptedVirtualPartition.EndSector)) { AcquireSectorBuffer(); CopyMemory (destSegment, destOffset, SectorBuffer, TC_LB_SIZE); DecryptDataUnits (SectorBuffer, §or, 1, BootCryptoInfo); CopyMemory (SectorBuffer, destSegment, destOffset, TC_LB_SIZE); ReleaseSectorBuffer(); } ++sector; destOffset += TC_LB_SIZE; } } return result; } -BiosResult WriteEncryptedSectors (uint16 sourceSegment, uint16 sourceOffset, byte drive, uint64 sector, uint16 sectorCount) +BiosResult WriteEncryptedSectors (uint16 sourceSegment, uint16 sourceOffset, uint8 drive, uint64 sector, uint16 sectorCount) { BiosResult result = BiosResultSuccess; AcquireSectorBuffer(); uint64 dataUnitNo; uint64 writeOffset; dataUnitNo = sector; writeOffset.HighPart = 0; writeOffset.LowPart = 0; if (BootCryptoInfo->hiddenVolume) { if (ReadWritePartiallyCoversEncryptedArea (sector, sectorCount)) return BiosResultInvalidFunction; // Remap the request to the hidden volume writeOffset = HiddenVolumeStartSector; writeOffset -= EncryptedVirtualPartition.StartSector; dataUnitNo -= EncryptedVirtualPartition.StartSector; dataUnitNo += PimValueOrHiddenVolumeStartUnitNo; } while (sectorCount-- > 0) { CopyMemory (sourceSegment, sourceOffset, SectorBuffer, TC_LB_SIZE); if (drive == EncryptedVirtualPartition.Drive && sector >= EncryptedVirtualPartition.StartSector && sector <= EncryptedVirtualPartition.EndSector) { EncryptDataUnits (SectorBuffer, &dataUnitNo, 1, BootCryptoInfo); } |