/* 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. */ #ifndef TC_HEADER_Volume_VolumeLayout #define TC_HEADER_Volume_VolumeLayout #include "Platform/Platform.h" #include "Volume/EncryptionAlgorithm.h" #include "Volume/EncryptionMode.h" #include "Volume/Pkcs5Kdf.h" #include "VolumeHeader.h" namespace VeraCrypt { class VolumeLayout; typedef list < shared_ptr > VolumeLayoutList; class VolumeLayout { public: virtual ~VolumeLayout (); static VolumeLayoutList GetAvailableLayouts (VolumeType::Enum type = VolumeType::Unknown); virtual int GetBackupHeaderOffset () const { return BackupHeaderOffset; } // Positive value: offset from the start of host, negative: offset from the end virtual uint64 GetDataOffset (uint64 volumeHostSize) const = 0; virtual uint64 GetDataSize (uint64 volumeHostSize) const = 0; virtual shared_ptr GetHeader (); virtual int GetHeaderOffset () const { return HeaderOffset; } // Positive value: offset from the start of host, negative: offset from the end virtual uint32 GetHeaderSize () const { return HeaderSize; } virtual uint64 GetMaxDataSize (uint64 volumeSize) const = 0; virtual EncryptionAlgorithmList GetSupportedEncryptionAlgorithms () const { return SupportedEncryptionAlgorithms; } virtual Pkcs5KdfList GetSupportedKeyDerivationFunctions (bool truecryptMode) const { return Pkcs5Kdf::GetAvailableAlgorithms(truecryptMode); } virtual EncryptionModeList GetSupportedEncryptionModes () const { return SupportedEncryptionModes; } virtual VolumeType::Enum GetType () const { return Type; } virtual bool HasBackupHeader () const = 0; virtual bool HasDriveHeader () const { return false; } virtual void SetHeader (shared_ptr header) { Header = header; } protected: VolumeLayout (); EncryptionAlgorithmList SupportedEncryptionAlgorithms; EncryptionModeList SupportedEncryptionModes; int BackupHeaderOffset; int HeaderOffset; uint32 HeaderSize; VolumeType::Enum Type; shared_ptr Header; private: VolumeLayout (const VolumeLayout &); VolumeLayout &operator= (const VolumeLayout &); }; class VolumeLayoutV1Normal : public VolumeLayout { public: VolumeLayoutV1Normal (); virtual ~VolumeLayoutV1Normal () { } virtual int GetBackupHeaderOffset () const { throw NotApplicable (SRC_POS); } virtual uint64 GetDataOffset (uint64 volumeHostSize) const; virtual uint64 GetDataSize (uint64 volumeHostSize) const; virtual uint64 GetMaxDataSize (uint64 volumeSize) const { throw NotApplicable (SRC_POS); } virtual bool HasBackupHeader () const { return false; } private: VolumeLayoutV1Normal (const VolumeLayoutV1Normal &); VolumeLayoutV1Normal &operator= (const VolumeLayoutV1Normal &); }; class VolumeLayoutV2Normal : public VolumeLayout { public: VolumeLayoutV2Normal (); virtual ~VolumeLayoutV2Normal () { } virtual uint64 GetDataOffset (uint64 volumeHostSize) const; virtual uint64 GetDataSize (uint64 volumeHostSize) const; virtual uint64 GetMaxDataSize (uint64 volumeSize) const; virtual bool HasBackupHeader () const { return true; } private: VolumeLayoutV2Normal (const VolumeLayoutV2Normal &); VolumeLayoutV2Normal &operator= (const VolumeLayoutV2Normal &); }; class VolumeLayoutV2Hidden : public VolumeLayout { public: VolumeLayoutV2Hidden (); virtual ~VolumeLayoutV2Hidden () { } virtual uint64 GetDataOffset (uint64 volumeHostSize) const; virtual uint64 GetDataSize (uint64 volumeHostSize) const; virtual uint64 GetMaxDataSize (uint64 volumeSize) const; virtual bool HasBackupHeader () const { return true; } private: VolumeLayoutV2Hidden (const VolumeLayoutV2Hidden &); VolumeLayoutV2Hidden &operator= (const VolumeLayoutV2Hidden &); }; class VolumeLayoutSystemEncryption : public VolumeLayout { public: VolumeLayoutSystemEncryption (); virtual ~VolumeLayoutSystemEncryption () { } virtual int GetBackupHeaderOffset () const { throw NotApplicable (SRC_POS); } virtual uint64 GetDataOffset (uint64 volumeHostSize) const; virtual uint64 GetDataSize (uint64 volumeHostSize) const; virtual uint64 GetMaxDataSize (uint64 volumeSize) const { throw NotApplicable (SRC_POS); } virtual Pkcs5KdfList GetSupportedKeyDerivationFunctions (bool truecryptMode) const; virtual bool HasBackupHeader () const { return false; } virtual bool HasDriveHeader () const { return true; } private: VolumeLayoutSystemEncryption (const VolumeLayoutSystemEncryption &); VolumeLayoutSystemEncryption &operator= (const VolumeLayoutSystemEncryption &); }; } #endif // TC_HEADER_Volume_VolumeLayout ' href='#n57'>57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340