libcryfs/src/cryfs/config/CryConfigLoader.h
2016-09-24 20:43:54 +02:00

48 lines
1.9 KiB
C++

#pragma once
#ifndef MESSMER_CRYFS_SRC_CONFIG_CRYCONFIGLOADER_H_
#define MESSMER_CRYFS_SRC_CONFIG_CRYCONFIGLOADER_H_
#include <cpp-utils/pointer/unique_ref.h>
#include <boost/filesystem.hpp>
#include "CryConfigFile.h"
#include "CryCipher.h"
#include "CryConfigCreator.h"
#include <cpp-utils/crypto/kdf/Scrypt.h>
namespace cryfs {
class CryConfigLoader final {
public:
CryConfigLoader(std::shared_ptr<cpputils::Console> console, cpputils::RandomGenerator &keyGenerator, const cpputils::SCryptSettings &scryptSettings, std::function<std::string()> askPasswordForExistingFilesystem, std::function<std::string()> askPasswordForNewFilesystem, const boost::optional<std::string> &cipherFromCommandLine, const boost::optional<uint32_t> &blocksizeBytesFromCommandLine, const boost::optional<bool> &missingBlockIsIntegrityViolationFromCommandLine);
CryConfigLoader(CryConfigLoader &&rhs) = default;
struct ConfigLoadResult {
CryConfigFile configFile;
uint32_t myClientId;
};
boost::optional<ConfigLoadResult> loadOrCreate(const boost::filesystem::path &filename);
private:
boost::optional<ConfigLoadResult> _loadConfig(const boost::filesystem::path &filename);
ConfigLoadResult _createConfig(const boost::filesystem::path &filename);
void _checkVersion(const CryConfig &config);
void _checkCipher(const CryConfig &config) const;
void _checkMissingBlocksAreIntegrityViolations(CryConfigFile *configFile, uint32_t myClientId);
std::shared_ptr<cpputils::Console> _console;
CryConfigCreator _creator;
cpputils::SCryptSettings _scryptSettings;
std::function<std::string()> _askPasswordForExistingFilesystem;
std::function<std::string()> _askPasswordForNewFilesystem;
boost::optional<std::string> _cipherFromCommandLine;
boost::optional<uint32_t> _blocksizeBytesFromCommandLine;
boost::optional<bool> _missingBlockIsIntegrityViolationFromCommandLine;
DISALLOW_COPY_AND_ASSIGN(CryConfigLoader);
};
}
#endif