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Add a command line option for blocksize

This commit is contained in:
Sebastian Messmer 2016-03-04 23:12:41 +01:00
parent 41bf0fd836
commit 526b749d1d
14 changed files with 87 additions and 47 deletions
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8
src/cryfs-cli/Cli.cpp
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@ -193,7 +193,7 @@ namespace cryfs {
CryConfigFile Cli::_loadOrCreateConfig(const ProgramOptions &options) {
try {
auto configFile = _determineConfigFile(options);
auto config = _loadOrCreateConfigFile(configFile, options.cipher());
auto config = _loadOrCreateConfigFile(configFile, options.cipher(), options.blocksizeBytes());
if (config == none) {
std::cerr << "Could not load config file. Did you enter the correct password?" << std::endl;
exit(1);
@ -205,17 +205,17 @@ namespace cryfs {
}
}
optional<CryConfigFile> Cli::_loadOrCreateConfigFile(const bf::path &configFilePath, const optional<string> &cipher) {
optional<CryConfigFile> Cli::_loadOrCreateConfigFile(const bf::path &configFilePath, const optional<string> &cipher, const optional<uint32_t> &blocksizeBytes) {
if (_noninteractive) {
return CryConfigLoader(_console, _keyGenerator, _scryptSettings,
&Cli::_askPasswordNoninteractive,
&Cli::_askPasswordNoninteractive,
cipher, _noninteractive).loadOrCreate(configFilePath);
cipher, blocksizeBytes, _noninteractive).loadOrCreate(configFilePath);
} else {
return CryConfigLoader(_console, _keyGenerator, _scryptSettings,
&Cli::_askPasswordForExistingFilesystem,
&Cli::_askPasswordForNewFilesystem,
cipher, _noninteractive).loadOrCreate(configFilePath);
cipher, blocksizeBytes, _noninteractive).loadOrCreate(configFilePath);
}
}

2
src/cryfs-cli/Cli.h
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@ -22,7 +22,7 @@ namespace cryfs {
void _checkForUpdates();
void _runFilesystem(const program_options::ProgramOptions &options);
CryConfigFile _loadOrCreateConfig(const program_options::ProgramOptions &options);
boost::optional<CryConfigFile> _loadOrCreateConfigFile(const boost::filesystem::path &configFilePath, const boost::optional<std::string> &cipher);
boost::optional<CryConfigFile> _loadOrCreateConfigFile(const boost::filesystem::path &configFilePath, const boost::optional<std::string> &cipher, const boost::optional<uint32_t> &blocksizeBytes);
boost::filesystem::path _determineConfigFile(const program_options::ProgramOptions &options);
static std::string _askPasswordForExistingFilesystem();
static std::string _askPasswordForNewFilesystem();

9
src/cryfs-cli/program_options/Parser.cpp
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@ -62,8 +62,12 @@ ProgramOptions Parser::parse(const vector<string> &supportedCiphers) const {
cipher = vm["cipher"].as<string>();
_checkValidCipher(*cipher, supportedCiphers);
}
optional<uint32_t> blocksizeBytes = none;
if (vm.count("blocksize-bytes")) {
blocksizeBytes = vm["blocksize-bytes"].as<uint32_t>();
}
return ProgramOptions(baseDir, mountDir, configfile, foreground, unmountAfterIdleMinutes, logfile, cipher, options.second);
return ProgramOptions(baseDir, mountDir, configfile, foreground, unmountAfterIdleMinutes, logfile, cipher, blocksizeBytes, options.second);
}
void Parser::_checkValidCipher(const string &cipher, const vector<string> &supportedCiphers) {
@ -108,7 +112,8 @@ void Parser::_addAllowedOptions(po::options_description *desc) {
("help,h", "show help message")
("config,c", po::value<string>(), "Configuration file")
("foreground,f", "Run CryFS in foreground.")
("cipher", po::value<string>(), "Cipher to use for encryption. See possible values by calling cryfs with --show-ciphers")
("cipher", po::value<string>(), "Cipher to use for encryption. See possible values by calling cryfs with --show-ciphers.")
("blocksize-bytes", po::value<uint32_t>(), "The block size used when storing ciphertext blocks (in bytes).")
("show-ciphers", "Show list of supported ciphers.")
("unmount-idle", po::value<double>(), "Automatically unmount after specified number of idle minutes.")
("logfile", po::value<string>(), "Specify the file to write log messages to. If this is not specified, log messages will go to stdout, or syslog if CryFS is running in the background.")

8
src/cryfs-cli/program_options/ProgramOptions.cpp
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@ -11,9 +11,11 @@ namespace bf = boost::filesystem;
ProgramOptions::ProgramOptions(const bf::path &baseDir, const bf::path &mountDir, const optional<bf::path> &configFile,
bool foreground, const optional<double> &unmountAfterIdleMinutes,
const optional<bf::path> &logFile, const optional<string> &cipher,
const optional<uint32_t> &blocksizeBytes,
const vector<char*> &fuseOptions)
:_baseDir(baseDir), _mountDir(nullptr), _configFile(configFile), _foreground(foreground),
_cipher(cipher), _unmountAfterIdleMinutes(unmountAfterIdleMinutes), _logFile(logFile), _fuseOptions(fuseOptions) {
_cipher(cipher), _blocksizeBytes(blocksizeBytes), _unmountAfterIdleMinutes(unmountAfterIdleMinutes),
_logFile(logFile), _fuseOptions(fuseOptions) {
string mountDirStr = mountDir.native();
_mountDir = new char[mountDirStr.size()+1];
@ -65,6 +67,10 @@ const optional<string> &ProgramOptions::cipher() const {
return _cipher;
}
const optional<uint32_t> &ProgramOptions::blocksizeBytes() const {
return _blocksizeBytes;
}
const vector<char *> &ProgramOptions::fuseOptions() const {
return _fuseOptions;
}

3
src/cryfs-cli/program_options/ProgramOptions.h
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@ -17,6 +17,7 @@ namespace cryfs {
bool foreground, const boost::optional<double> &unmountAfterIdleMinutes,
const boost::optional<boost::filesystem::path> &logFile,
const boost::optional<std::string> &cipher,
const boost::optional<uint32_t> &blocksizeBytes,
const std::vector<char *> &fuseOptions);
ProgramOptions(ProgramOptions &&rhs);
~ProgramOptions();
@ -26,6 +27,7 @@ namespace cryfs {
const boost::optional<boost::filesystem::path> &configFile() const;
bool foreground() const;
const boost::optional<std::string> &cipher() const;
const boost::optional<uint32_t> &blocksizeBytes() const;
const boost::optional<double> &unmountAfterIdleMinutes() const;
const boost::optional<boost::filesystem::path> &logFile() const;
const std::vector<char *> &fuseOptions() const;
@ -36,6 +38,7 @@ namespace cryfs {
boost::optional<boost::filesystem::path> _configFile;
bool _foreground;
boost::optional<std::string> _cipher;
boost::optional<uint32_t> _blocksizeBytes;
boost::optional<double> _unmountAfterIdleMinutes;
boost::optional<boost::filesystem::path> _logFile;
std::vector<char *> _fuseOptions;

13
src/cryfs/config/CryConfigCreator.cpp
View File

@ -17,18 +17,23 @@ namespace cryfs {
:_console(console), _configConsole(console, noninteractive), _encryptionKeyGenerator(encryptionKeyGenerator) {
}
CryConfig CryConfigCreator::create(const optional<string> &cipherFromCommandLine) {
CryConfig CryConfigCreator::create(const optional<string> &cipherFromCommandLine, const optional<uint32_t> &blocksizeBytesFromCommandLine) {
CryConfig config;
config.SetCipher(_generateCipher(cipherFromCommandLine));
config.SetVersion(gitversion::VersionString());
config.SetBlocksizeBytes(_generateBlocksizeBytes());
config.SetBlocksizeBytes(_generateBlocksizeBytes(blocksizeBytesFromCommandLine));
config.SetRootBlob(_generateRootBlobKey());
config.SetEncryptionKey(_generateEncKey(config.Cipher()));
return config;
}
uint32_t CryConfigCreator::_generateBlocksizeBytes() {
return _configConsole.askBlocksizeBytes();
uint32_t CryConfigCreator::_generateBlocksizeBytes(const optional<uint32_t> &blocksizeBytesFromCommandLine) {
if (blocksizeBytesFromCommandLine != none) {
// TODO Check block size is valid (i.e. large enough)
return *blocksizeBytesFromCommandLine;
} else {
return _configConsole.askBlocksizeBytes();
}
}
string CryConfigCreator::_generateCipher(const optional<string> &cipherFromCommandLine) {

4
src/cryfs/config/CryConfigCreator.h
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@ -14,12 +14,12 @@ namespace cryfs {
CryConfigCreator(std::shared_ptr<cpputils::Console> console, cpputils::RandomGenerator &encryptionKeyGenerator, bool noninteractive);
CryConfigCreator(CryConfigCreator &&rhs) = default;
CryConfig create(const boost::optional<std::string> &cipherFromCommandLine);
CryConfig create(const boost::optional<std::string> &cipherFromCommandLine, const boost::optional<uint32_t> &blocksizeBytesFromCommandLine);
private:
std::string _generateCipher(const boost::optional<std::string> &cipherFromCommandLine);
std::string _generateEncKey(const std::string &cipher);
std::string _generateRootBlobKey();
uint32_t _generateBlocksizeBytes();
uint32_t _generateBlocksizeBytes(const boost::optional<uint32_t> &blocksizeBytesFromCommandLine);
std::shared_ptr<cpputils::Console> _console;
CryConfigConsole _configConsole;

6
src/cryfs/config/CryConfigLoader.cpp
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@ -25,10 +25,10 @@ using namespace cpputils::logging;
namespace cryfs {
CryConfigLoader::CryConfigLoader(shared_ptr<Console> console, RandomGenerator &keyGenerator, const SCryptSettings &scryptSettings, function<string()> askPasswordForExistingFilesystem, function<string()> askPasswordForNewFilesystem, const optional<string> &cipherFromCommandLine, bool noninteractive)
CryConfigLoader::CryConfigLoader(shared_ptr<Console> console, RandomGenerator &keyGenerator, const SCryptSettings &scryptSettings, function<string()> askPasswordForExistingFilesystem, function<string()> askPasswordForNewFilesystem, const optional<string> &cipherFromCommandLine, const boost::optional<uint32_t> &blocksizeBytesFromCommandLine, bool noninteractive)
: _creator(std::move(console), keyGenerator, noninteractive), _scryptSettings(scryptSettings),
_askPasswordForExistingFilesystem(askPasswordForExistingFilesystem), _askPasswordForNewFilesystem(askPasswordForNewFilesystem),
_cipherFromCommandLine(cipherFromCommandLine) {
_cipherFromCommandLine(cipherFromCommandLine), _blocksizeBytesFromCommandLine(blocksizeBytesFromCommandLine) {
}
optional<CryConfigFile> CryConfigLoader::_loadConfig(const bf::path &filename) {
@ -66,7 +66,7 @@ optional<CryConfigFile> CryConfigLoader::loadOrCreate(const bf::path &filename)
}
CryConfigFile CryConfigLoader::_createConfig(const bf::path &filename) {
auto config = _creator.create(_cipherFromCommandLine);
auto config = _creator.create(_cipherFromCommandLine, _blocksizeBytesFromCommandLine);
//TODO Ask confirmation if using insecure password (<8 characters)
string password = _askPasswordForNewFilesystem();
std::cout << "Creating config file (this can take some time)..." << std::flush;

3
src/cryfs/config/CryConfigLoader.h
View File

@ -13,7 +13,7 @@ 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, bool noninteractive);
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, bool noninteractive);
CryConfigLoader(CryConfigLoader &&rhs) = default;
boost::optional<CryConfigFile> loadOrCreate(const boost::filesystem::path &filename);
@ -29,6 +29,7 @@ private:
std::function<std::string()> _askPasswordForExistingFilesystem;
std::function<std::string()> _askPasswordForNewFilesystem;
boost::optional<std::string> _cipherFromCommandLine;
boost::optional<uint32_t> _blocksizeBytesFromCommandLine;
DISALLOW_COPY_AND_ASSIGN(CryConfigLoader);
};

38
test/cryfs-cli/program_options/ProgramOptionsTest.cpp
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@ -23,73 +23,83 @@ namespace boost {
class ProgramOptionsTest: public ProgramOptionsTestBase {};
TEST_F(ProgramOptionsTest, BaseDir) {
ProgramOptions testobj("/home/user/mydir", "", none, false, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("/home/user/mydir", "", none, false, none, none, none, none, options({"./myExecutable"}));
EXPECT_EQ("/home/user/mydir", testobj.baseDir());
}
TEST_F(ProgramOptionsTest, MountDir) {
ProgramOptions testobj("", "/home/user/mydir", none, false, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "/home/user/mydir", none, false, none, none, none, none, options({"./myExecutable"}));
EXPECT_EQ("/home/user/mydir", testobj.mountDir());
}
TEST_F(ProgramOptionsTest, ConfigfileNone) {
ProgramOptions testobj("", "", none, true, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "", none, true, none, none, none, none, options({"./myExecutable"}));
EXPECT_EQ(none, testobj.configFile());
}
TEST_F(ProgramOptionsTest, ConfigfileSome) {
ProgramOptions testobj("", "", bf::path("/home/user/configfile"), true, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "", bf::path("/home/user/configfile"), true, none, none, none, none, options({"./myExecutable"}));
EXPECT_EQ("/home/user/configfile", testobj.configFile().get());
}
TEST_F(ProgramOptionsTest, ForegroundFalse) {
ProgramOptions testobj("", "", none, false, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "", none, false, none, none, none, none, options({"./myExecutable"}));
EXPECT_FALSE(testobj.foreground());
}
TEST_F(ProgramOptionsTest, ForegroundTrue) {
ProgramOptions testobj("", "", none, true, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "", none, true, none, none, none, none, options({"./myExecutable"}));
EXPECT_TRUE(testobj.foreground());
}
TEST_F(ProgramOptionsTest, LogfileNone) {
ProgramOptions testobj("", "", none, true, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "", none, true, none, none, none, none, options({"./myExecutable"}));
EXPECT_EQ(none, testobj.logFile());
}
TEST_F(ProgramOptionsTest, LogfileSome) {
ProgramOptions testobj("", "", none, true, none, bf::path("logfile"), none, options({"./myExecutable"}));
ProgramOptions testobj("", "", none, true, none, bf::path("logfile"), none, none, options({"./myExecutable"}));
EXPECT_EQ("logfile", testobj.logFile().get());
}
TEST_F(ProgramOptionsTest, UnmountAfterIdleMinutesNone) {
ProgramOptions testobj("", "", none, true, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "", none, true, none, none, none, none, options({"./myExecutable"}));
EXPECT_EQ(none, testobj.unmountAfterIdleMinutes());
}
TEST_F(ProgramOptionsTest, UnmountAfterIdleMinutesSome) {
ProgramOptions testobj("", "", none, true, 10, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "", none, true, 10, none, none, none, options({"./myExecutable"}));
EXPECT_EQ(10, testobj.unmountAfterIdleMinutes().get());
}
TEST_F(ProgramOptionsTest, CipherNone) {
ProgramOptions testobj("", "", none, true, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("", "", none, true, none, none, none, none, options({"./myExecutable"}));
EXPECT_EQ(none, testobj.cipher());
}
TEST_F(ProgramOptionsTest, CipherSome) {
ProgramOptions testobj("", "", none, true, none, none, string("aes-256-gcm"), options({"./myExecutable"}));
ProgramOptions testobj("", "", none, true, none, none, string("aes-256-gcm"), none, options({"./myExecutable"}));
EXPECT_EQ("aes-256-gcm", testobj.cipher().get());
}
TEST_F(ProgramOptionsTest, BlocksizeBytesNone) {
ProgramOptions testobj("", "", none, true, none, none, none, none, options({"./myExecutable"}));
EXPECT_EQ(none, testobj.blocksizeBytes());
}
TEST_F(ProgramOptionsTest, BlocksizeSome) {
ProgramOptions testobj("", "", none, true, none, none, none, 10*1024, options({"./myExecutable"}));
EXPECT_EQ(10*1024u, testobj.blocksizeBytes().get());
}
TEST_F(ProgramOptionsTest, EmptyFuseOptions) {
ProgramOptions testobj("/rootDir", "/home/user/mydir", none, false, none, none, none, options({"./myExecutable"}));
ProgramOptions testobj("/rootDir", "/home/user/mydir", none, false, none, none, none, none, options({"./myExecutable"}));
//Fuse should have the mount dir as first parameter
EXPECT_VECTOR_EQ({"./myExecutable", "/home/user/mydir"}, testobj.fuseOptions());
}
TEST_F(ProgramOptionsTest, SomeFuseOptions) {
ProgramOptions testobj("/rootDir", "/home/user/mydir", none, false, none, none, none, options({"./myExecutable", "-f", "--longoption"}));
ProgramOptions testobj("/rootDir", "/home/user/mydir", none, false, none, none, none, none, options({"./myExecutable", "-f", "--longoption"}));
//Fuse should have the mount dir as first parameter
EXPECT_VECTOR_EQ({"./myExecutable", "/home/user/mydir", "-f", "--longoption"}, testobj.fuseOptions());
}

34
test/cryfs/config/CryConfigCreatorTest.cpp
View File

@ -62,72 +62,82 @@ public:
TEST_F(CryConfigCreatorTest, DoesAskForCipherIfNotSpecified) {
AnswerNoToDefaultSettings();
EXPECT_ASK_FOR_CIPHER().WillOnce(ChooseAnyCipher());
CryConfig config = creator.create(none);
CryConfig config = creator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForCipherIfSpecified) {
AnswerNoToDefaultSettings();
EXPECT_DOES_NOT_ASK_FOR_CIPHER();
CryConfig config = creator.create(string("aes-256-gcm"));
CryConfig config = creator.create(string("aes-256-gcm"), none);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForCipherIfUsingDefaultSettings) {
AnswerYesToDefaultSettings();
EXPECT_DOES_NOT_ASK_FOR_CIPHER();
CryConfig config = creator.create(none);
CryConfig config = creator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForCipherIfNoninteractive) {
EXPECT_DOES_NOT_ASK_TO_USE_DEFAULT_SETTINGS();
EXPECT_DOES_NOT_ASK_FOR_CIPHER();
CryConfig config = noninteractiveCreator.create(none);
CryConfig config = noninteractiveCreator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesAskForBlocksizeIfNotSpecified) {
AnswerNoToDefaultSettings();
EXPECT_ASK_FOR_BLOCKSIZE().WillOnce(Return(1));
CryConfig config = creator.create(none);
CryConfig config = creator.create(none, none);
}
//TODO DoesNotAskForCipherIfSpecified
TEST_F(CryConfigCreatorTest, DoesNotAskForBlocksizeIfSpecified) {
AnswerNoToDefaultSettings();
EXPECT_DOES_NOT_ASK_FOR_BLOCKSIZE();
CryConfig config = creator.create(none, 10*1024u);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForBlocksizeIfNoninteractive) {
EXPECT_DOES_NOT_ASK_TO_USE_DEFAULT_SETTINGS();
EXPECT_DOES_NOT_ASK_FOR_BLOCKSIZE();
CryConfig config = noninteractiveCreator.create(none);
CryConfig config = noninteractiveCreator.create(none, none);
}
TEST_F(CryConfigCreatorTest, DoesNotAskForBlocksizeIfUsingDefaultSettings) {
AnswerYesToDefaultSettings();
EXPECT_DOES_NOT_ASK_FOR_BLOCKSIZE();
CryConfig config = creator.create(none);
CryConfig config = creator.create(none, none);
}
TEST_F(CryConfigCreatorTest, ChoosesEmptyRootBlobId) {
AnswerNoToDefaultSettings();
CryConfig config = creator.create(none);
CryConfig config = creator.create(none, none);
EXPECT_EQ("", config.RootBlob()); // This tells CryFS to create a new root blob
}
TEST_F(CryConfigCreatorTest, ChoosesValidEncryptionKey_448) {
AnswerNoToDefaultSettings();
EXPECT_ASK_FOR_CIPHER().WillOnce(ChooseCipher("mars-448-gcm"));
CryConfig config = creator.create(none);
CryConfig config = creator.create(none, none);
cpputils::Mars448_GCM::EncryptionKey::FromString(config.EncryptionKey()); // This crashes if invalid
}
TEST_F(CryConfigCreatorTest, ChoosesValidEncryptionKey_256) {
AnswerNoToDefaultSettings();
EXPECT_ASK_FOR_CIPHER().WillOnce(ChooseCipher("aes-256-gcm"));
CryConfig config = creator.create(none);
CryConfig config = creator.create(none, none);
cpputils::AES256_GCM::EncryptionKey::FromString(config.EncryptionKey()); // This crashes if invalid
}
TEST_F(CryConfigCreatorTest, ChoosesValidEncryptionKey_128) {
AnswerNoToDefaultSettings();
EXPECT_ASK_FOR_CIPHER().WillOnce(ChooseCipher("aes-128-gcm"));
CryConfig config = creator.create(none);
CryConfig config = creator.create(none, none);
cpputils::AES128_GCM::EncryptionKey::FromString(config.EncryptionKey()); // This crashes if invalid
}
TEST_F(CryConfigCreatorTest, DoesNotAskForAnythingIfEverythingIsSpecified) {
EXPECT_DOES_NOT_ASK_TO_USE_DEFAULT_SETTINGS();
EXPECT_DOES_NOT_ASK_FOR_CIPHER();
CryConfig config = noninteractiveCreator.create(string("aes-256-gcm"), 10*1024u);
}
//TODO Add test cases ensuring that the values entered are correctly taken

2
test/cryfs/config/CryConfigLoaderTest.cpp
View File

@ -32,7 +32,7 @@ public:
CryConfigLoader loader(const string &password, bool noninteractive, const optional<string> &cipher = none) {
auto askPassword = [password] { return password;};
return CryConfigLoader(mockConsole(), cpputils::Random::PseudoRandom(), SCrypt::TestSettings, askPassword, askPassword, cipher, noninteractive);
return CryConfigLoader(mockConsole(), cpputils::Random::PseudoRandom(), SCrypt::TestSettings, askPassword, askPassword, cipher, none, noninteractive);
}
CryConfigFile Create(const string &password = "mypassword", const optional<string> &cipher = none, bool noninteractive = false) {

2
test/cryfs/filesystem/CryFsTest.cpp
View File

@ -37,7 +37,7 @@ public:
CryConfigFile loadOrCreateConfig() {
auto askPassword = [] {return "mypassword";};
return CryConfigLoader(mockConsole(), Random::PseudoRandom(), SCrypt::TestSettings, askPassword, askPassword, none, true).loadOrCreate(config.path()).value();
return CryConfigLoader(mockConsole(), Random::PseudoRandom(), SCrypt::TestSettings, askPassword, askPassword, none, none, true).loadOrCreate(config.path()).value();
}
unique_ref<OnDiskBlockStore> blockStore() {

2
test/cryfs/filesystem/FileSystemTest.cpp
View File

@ -28,7 +28,7 @@ public:
unique_ref<Device> createDevice() override {
auto blockStore = cpputils::make_unique_ref<FakeBlockStore>();
auto askPassword = [] {return "mypassword";};
auto config = CryConfigLoader(mockConsole(), Random::PseudoRandom(), SCrypt::TestSettings, askPassword, askPassword, none, true)
auto config = CryConfigLoader(mockConsole(), Random::PseudoRandom(), SCrypt::TestSettings, askPassword, askPassword, none, none, true)
.loadOrCreate(configFile.path()).value();
return make_unique_ref<CryDevice>(std::move(config), std::move(blockStore));
}