diff options
Diffstat (limited to 'src/Volume/VolumeLayout.cpp')
| -rw-r--r-- | src/Volume/VolumeLayout.cpp | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/src/Volume/VolumeLayout.cpp b/src/Volume/VolumeLayout.cpp new file mode 100644 index 00000000..00696e92 --- /dev/null +++ b/src/Volume/VolumeLayout.cpp @@ -0,0 +1,254 @@ +/* + Copyright (c) 2008 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. +*/ + +#include "Volume/EncryptionMode.h" +#include "Volume/EncryptionModeCBC.h" +#include "Volume/EncryptionModeLRW.h" +#include "Volume/EncryptionModeXTS.h" +#include "VolumeLayout.h" +#include "Boot/Windows/BootCommon.h" + +namespace TrueCrypt +{ + VolumeLayout::VolumeLayout () + { + } + + VolumeLayout::~VolumeLayout () + { + } + + VolumeLayoutList VolumeLayout::GetAvailableLayouts (VolumeType::Enum type) + { + VolumeLayoutList layouts; + + layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutV2Normal ())); + layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutV1Normal ())); + layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutV2Hidden ())); + layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutV1Hidden ())); + layouts.push_back (shared_ptr <VolumeLayout> (new VolumeLayoutSystemEncryption ())); + + if (type != VolumeType::Unknown) + { + VolumeLayoutList l; + + foreach (shared_ptr <VolumeLayout> vl, layouts) + { + if (vl->GetType() == type) + l.push_back (vl); + } + + layouts = l; + } + + return layouts; + } + + shared_ptr <VolumeHeader> VolumeLayout::GetHeader () + { + if (Header.get() == nullptr) + Header.reset (new VolumeHeader (GetHeaderSize())); + + return Header; + } + + + VolumeLayoutV1Normal::VolumeLayoutV1Normal () + { + Type = VolumeType::Normal; + HeaderOffset = TC_VOLUME_HEADER_OFFSET; + HeaderSize = TC_VOLUME_HEADER_SIZE_LEGACY; + + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ())); + + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESBlowfish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESBlowfishSerpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Blowfish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Cast5 ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TripleDES ())); + + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeLRW ())); + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeCBC ())); + } + + uint64 VolumeLayoutV1Normal::GetDataOffset (uint64 volumeHostSize) const + { + return HeaderSize; + } + + uint64 VolumeLayoutV1Normal::GetDataSize (uint64 volumeHostSize) const + { + return volumeHostSize - GetHeaderSize(); + } + + + VolumeLayoutV1Hidden::VolumeLayoutV1Hidden () + { + Type = VolumeType::Hidden; + HeaderOffset = -TC_HIDDEN_VOLUME_HEADER_OFFSET_LEGACY; + HeaderSize = TC_VOLUME_HEADER_SIZE_LEGACY; + + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ())); + + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESBlowfish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESBlowfishSerpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Blowfish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Cast5 ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TripleDES ())); + + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeLRW ())); + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeCBC ())); + } + + uint64 VolumeLayoutV1Hidden::GetDataOffset (uint64 volumeHostSize) const + { + return volumeHostSize - GetDataSize (volumeHostSize) + HeaderOffset; + } + + uint64 VolumeLayoutV1Hidden::GetDataSize (uint64 volumeHostSize) const + { + return Header->GetHiddenVolumeDataSize (); + } + + + VolumeLayoutV2Normal::VolumeLayoutV2Normal () + { + Type = VolumeType::Normal; + HeaderOffset = TC_VOLUME_HEADER_OFFSET; + HeaderSize = TC_VOLUME_HEADER_SIZE; + BackupHeaderOffset = -TC_VOLUME_HEADER_GROUP_SIZE; + + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ())); + + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); + } + + uint64 VolumeLayoutV2Normal::GetDataOffset (uint64 volumeHostSize) const + { + return Header->GetEncryptedAreaStart(); + } + + uint64 VolumeLayoutV2Normal::GetDataSize (uint64 volumeHostSize) const + { + return Header->GetVolumeDataSize(); + } + + uint64 VolumeLayoutV2Normal::GetMaxDataSize (uint64 volumeSize) const + { + if (volumeSize < TC_TOTAL_VOLUME_HEADERS_SIZE) + return 0; + + return volumeSize - TC_TOTAL_VOLUME_HEADERS_SIZE; + } + + + VolumeLayoutV2Hidden::VolumeLayoutV2Hidden () + { + Type = VolumeType::Hidden; + HeaderOffset = TC_HIDDEN_VOLUME_HEADER_OFFSET; + HeaderSize = TC_VOLUME_HEADER_SIZE; + BackupHeaderOffset = -TC_HIDDEN_VOLUME_HEADER_OFFSET; + + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ())); + + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); + } + + uint64 VolumeLayoutV2Hidden::GetDataOffset (uint64 volumeHostSize) const + { + return Header->GetEncryptedAreaStart(); + } + + uint64 VolumeLayoutV2Hidden::GetDataSize (uint64 volumeHostSize) const + { + return Header->GetVolumeDataSize(); + } + + uint64 VolumeLayoutV2Hidden::GetMaxDataSize (uint64 volumeSize) const + { + // Reserve free space at the end of the host filesystem + uint64 reservedSize; + + if (volumeSize < TC_VOLUME_SMALL_SIZE_THRESHOLD) + reservedSize = TC_HIDDEN_VOLUME_HOST_FS_RESERVED_END_AREA_SIZE; + else + reservedSize = TC_HIDDEN_VOLUME_HOST_FS_RESERVED_END_AREA_SIZE_HIGH; // Ensure size of a hidden volume larger than TC_VOLUME_SMALL_SIZE_THRESHOLD is a multiple of the maximum supported sector size + + if (volumeSize < reservedSize) + return 0; + + return volumeSize - reservedSize; + } + + + VolumeLayoutSystemEncryption::VolumeLayoutSystemEncryption () + { + Type = VolumeType::Normal; + HeaderOffset = TC_BOOT_VOLUME_HEADER_SECTOR_OFFSET; + HeaderSize = TC_BOOT_ENCRYPTION_VOLUME_HEADER_SIZE; + + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Serpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new Twofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofish ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new AESTwofishSerpent ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new SerpentTwofishAES ())); + SupportedEncryptionAlgorithms.push_back (shared_ptr <EncryptionAlgorithm> (new TwofishSerpent ())); + + SupportedEncryptionModes.push_back (shared_ptr <EncryptionMode> (new EncryptionModeXTS ())); + } + + uint64 VolumeLayoutSystemEncryption::GetDataOffset (uint64 volumeHostSize) const + { + return 0; + } + + uint64 VolumeLayoutSystemEncryption::GetDataSize (uint64 volumeHostSize) const + { + return volumeHostSize; + } + + Pkcs5KdfList VolumeLayoutSystemEncryption::GetSupportedKeyDerivationFunctions () const + { + Pkcs5KdfList l; + + l.push_back (shared_ptr <Pkcs5Kdf> (new Pkcs5HmacRipemd160_1000 ())); + return l; + } +} |