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Windows: Allow mounting to drive letters instead of existing folders

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This commit is contained in:
Sebastian Messmer 2019-01-13 16:29:28 -08:00
parent d0efbaaa72
commit 30f8d02081
4 changed files with 35 additions and 12 deletions
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15
src/cryfs-cli/Cli.cpp
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@ -316,10 +316,17 @@ namespace cryfs {
}
}
void Cli::_sanityChecks(const ProgramOptions &options) {
_checkDirAccessible(options.baseDir(), "base directory", ErrorCode::InaccessibleBaseDir);
_checkDirAccessible(options.mountDir(), "mount directory", ErrorCode::InaccessibleMountDir);
_checkMountdirDoesntContainBasedir(options);
void Cli::_sanityChecks(const ProgramOptions &options) {
_checkDirAccessible(bf::absolute(options.baseDir()), "base directory", ErrorCode::InaccessibleBaseDir);
if (!options.mountDirIsDriveLetter()) {
_checkDirAccessible(options.mountDir(), "mount directory", ErrorCode::InaccessibleMountDir);
_checkMountdirDoesntContainBasedir(options);
} else {
if (bf::exists(options.mountDir())) {
throw CryfsException("Drive " + options.mountDir().string() + " already exists.", ErrorCode::InaccessibleMountDir);
}
}
}
void Cli::_checkDirAccessible(const bf::path &dir, const std::string &name, ErrorCode errorCode) {

4
src/cryfs-cli/program_options/Parser.cpp
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@ -49,8 +49,8 @@ ProgramOptions Parser::parse(const vector<string> &supportedCiphers) const {
if (!vm.count("mount-dir")) {
_showHelpAndExit("Please specify a mount directory.", ErrorCode::InvalidArguments);
}
bf::path baseDir = bf::absolute(vm["base-dir"].as<string>());
bf::path mountDir = bf::absolute(vm["mount-dir"].as<string>());
bf::path baseDir = vm["base-dir"].as<string>();
bf::path mountDir = vm["mount-dir"].as<string>();
optional<bf::path> configfile = none;
if (vm.count("config")) {
configfile = bf::absolute(vm["config"].as<string>());

20
src/cryfs-cli/program_options/ProgramOptions.cpp
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@ -15,9 +15,19 @@ ProgramOptions::ProgramOptions(bf::path baseDir, bf::path mountDir, optional<bf:
bool allowIntegrityViolations,
boost::optional<bool> missingBlockIsIntegrityViolation,
vector<string> fuseOptions)
:_baseDir(std::move(baseDir)), _mountDir(std::move(mountDir)), _configFile(std::move(configFile)), _foreground(foreground), _allowFilesystemUpgrade(allowFilesystemUpgrade), _allowReplacedFilesystem(allowReplacedFilesystem), _allowIntegrityViolations(allowIntegrityViolations),
_cipher(std::move(cipher)), _blocksizeBytes(std::move(blocksizeBytes)), _unmountAfterIdleMinutes(std::move(unmountAfterIdleMinutes)),
_missingBlockIsIntegrityViolation(std::move(missingBlockIsIntegrityViolation)), _logFile(std::move(logFile)), _fuseOptions(std::move(fuseOptions)) {
: _configFile(std::move(configFile)), _baseDir(bf::absolute(std::move(baseDir))), _mountDir(std::move(mountDir)),
#if defined(_MSC_VER)
_mountDirIsDriveLetter(_mountDir.has_root_path() && !_mountDir.has_root_directory() && !_mountDir.has_parent_path()),
#else
_mountDirIsDriveLetter(false),
#endif
_foreground(foreground),
_allowFilesystemUpgrade(allowFilesystemUpgrade), _allowReplacedFilesystem(allowReplacedFilesystem), _allowIntegrityViolations(allowIntegrityViolations),
_cipher(std::move(cipher)), _blocksizeBytes(std::move(blocksizeBytes)), _unmountAfterIdleMinutes(std::move(unmountAfterIdleMinutes)),
_missingBlockIsIntegrityViolation(std::move(missingBlockIsIntegrityViolation)), _logFile(std::move(logFile)), _fuseOptions(std::move(fuseOptions)) {
if (!_mountDirIsDriveLetter) {
_mountDir = bf::absolute(std::move(_mountDir));
}
}
const bf::path &ProgramOptions::baseDir() const {
@ -28,6 +38,10 @@ const bf::path &ProgramOptions::mountDir() const {
return _mountDir;
}
bool ProgramOptions::mountDirIsDriveLetter() const {
return _mountDirIsDriveLetter;
}
const optional<bf::path> &ProgramOptions::configFile() const {
return _configFile;
}

8
src/cryfs-cli/program_options/ProgramOptions.h
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@ -25,6 +25,7 @@ namespace cryfs {
const boost::filesystem::path &baseDir() const;
const boost::filesystem::path &mountDir() const;
bool mountDirIsDriveLetter() const;
const boost::optional<boost::filesystem::path> &configFile() const;
bool foreground() const;
bool allowFilesystemUpgrade() const;
@ -38,9 +39,10 @@ namespace cryfs {
const std::vector<std::string> &fuseOptions() const;
private:
boost::filesystem::path _baseDir;
boost::filesystem::path _mountDir;
boost::optional<boost::filesystem::path> _configFile;
boost::optional<boost::filesystem::path> _configFile;
boost::filesystem::path _baseDir; // this is always absolute
boost::filesystem::path _mountDir; // this is absolute iff !_mountDirIsDriveLetter
bool _mountDirIsDriveLetter;
bool _foreground;
bool _allowFilesystemUpgrade;
bool _allowReplacedFilesystem;