51 lines
2.5 KiB
C++
51 lines
2.5 KiB
C++
#pragma once
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#ifndef MESSMER_CRYFS_SRC_CONFIG_CRYCONFIGLOADER_H_
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#define MESSMER_CRYFS_SRC_CONFIG_CRYCONFIGLOADER_H_
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#include <cpp-utils/pointer/unique_ref.h>
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#include <boost/filesystem.hpp>
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#include <cpp-utils/either.h>
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#include "CryConfigFile.h"
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#include "CryCipher.h"
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#include "CryConfigCreator.h"
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#include "CryKeyProvider.h"
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namespace cryfs {
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class CryConfigLoader final {
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public:
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// note: keyGenerator generates the inner (i.e. file system) key. keyProvider asks for the password and generates the outer (i.e. config file) key.
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CryConfigLoader(std::shared_ptr<cpputils::Console> console, cpputils::RandomGenerator &keyGenerator, cpputils::unique_ref<CryKeyProvider> keyProvider, LocalStateDir localStateDir, const boost::optional<std::string> &cipherFromCommandLine, const boost::optional<uint32_t> &blocksizeBytesFromCommandLine, const boost::optional<bool> &missingBlockIsIntegrityViolationFromCommandLine);
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CryConfigLoader(CryConfigLoader &&rhs) = default;
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struct ConfigLoadResult {
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CryConfig oldConfig; // loading a config file updates the config file, but this member keeps the original config
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cpputils::unique_ref<CryConfigFile> configFile;
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uint32_t myClientId;
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};
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cpputils::either<CryConfigFile::LoadError, CryConfigLoader::ConfigLoadResult> loadOrCreate(boost::filesystem::path filename, bool allowFilesystemUpgrade, bool allowReplacedFilesystem);
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cpputils::either<CryConfigFile::LoadError, CryConfigLoader::ConfigLoadResult> load(boost::filesystem::path filename, bool allowFilesystemUpgrade, bool allowReplacedFilesystem, CryConfigFile::Access access);
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private:
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cpputils::either<CryConfigFile::LoadError, CryConfigLoader::ConfigLoadResult> _loadConfig(boost::filesystem::path filename, bool allowFilesystemUpgrade, bool allowReplacedFilesystem, CryConfigFile::Access access);
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ConfigLoadResult _createConfig(boost::filesystem::path filename, bool allowReplacedFilesystem);
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void _checkVersion(const CryConfig &config, bool allowFilesystemUpgrade);
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void _checkCipher(const CryConfig &config) const;
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void _checkMissingBlocksAreIntegrityViolations(CryConfigFile *configFile, uint32_t myClientId);
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std::shared_ptr<cpputils::Console> _console;
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CryConfigCreator _creator;
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cpputils::unique_ref<CryKeyProvider> _keyProvider;
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boost::optional<std::string> _cipherFromCommandLine;
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boost::optional<uint32_t> _blocksizeBytesFromCommandLine;
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boost::optional<bool> _missingBlockIsIntegrityViolationFromCommandLine;
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LocalStateDir _localStateDir;
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DISALLOW_COPY_AND_ASSIGN(CryConfigLoader);
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};
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}
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#endif
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