encfs/fs/FileUtils.h
Valient Gough 7e95ff90c8 encapsulate old cipher support layer
git-svn-id: http://encfs.googlecode.com/svn/trunk@95 db9cf616-1c43-0410-9cb8-a902689de0d6
2013-03-05 06:36:32 +00:00

139 lines
3.8 KiB
C++

/*****************************************************************************
* Author: Valient Gough <vgough@pobox.com>
*
*****************************************************************************
* Copyright (c) 2004-2012, Valient Gough
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _FileUtils_incl_
#define _FileUtils_incl_
#include "base/Interface.h"
#include "cipher/CipherKey.h"
#include "fs/encfs.h"
#include "fs/FSConfig.h"
namespace encfs {
// true if the path points to an existing node (of any type)
bool fileExists( const char *fileName );
// true if path is a directory
bool isDirectory( const char *fileName );
// true if starts with '/'
bool isAbsolutePath( const char *fileName );
// pointer to just after the last '/'
const char *lastPathElement( const char *name );
std::string parentDirectory( const std::string &path );
// ask the user for permission to create the directory. If they say ok, then
// do it and return true.
bool userAllowMkdir(const char *dirPath, mode_t mode );
bool userAllowMkdir(int promptno, const char *dirPath, mode_t mode );
class CipherV1;
class DirNode;
struct EncFS_Root
{
shared_ptr<CipherV1> cipher;
CipherKey volumeKey;
shared_ptr<DirNode> root;
EncFS_Root();
~EncFS_Root();
};
typedef shared_ptr<EncFS_Root> RootPtr;
enum ConfigMode
{
Config_Prompt,
Config_Standard,
Config_Paranoia
};
struct EncFS_Opts
{
std::string rootDir;
bool createIfNotFound; // create filesystem if not found
bool idleTracking; // turn on idle monitoring of filesystem
bool mountOnDemand; // mounting on-demand
bool checkKey; // check crypto key decoding
bool forceDecode; // force decode on MAC block failures
std::string passwordProgram; // path to password program (or empty)
bool useStdin; // read password from stdin rather then prompting
bool annotate; // print annotation line prompt to stderr.
bool ownerCreate; // set owner of new files to caller
bool reverseEncryption; // Reverse encryption
ConfigMode configMode;
EncFS_Opts()
{
createIfNotFound = true;
idleTracking = false;
mountOnDemand = false;
checkKey = true;
forceDecode = false;
useStdin = false;
annotate = false;
ownerCreate = false;
reverseEncryption = false;
configMode = Config_Prompt;
}
};
/*
Read existing config file. Looks for any supported configuration version.
*/
ConfigType readConfig( const std::string &rootDir, EncfsConfig &config );
/*
Save the configuration. Saves back as the same configuration type as was
read from.
*/
bool saveConfig( const std::string &rootdir, const EncfsConfig &config );
class EncFS_Context;
RootPtr initFS( EncFS_Context *ctx, const shared_ptr<EncFS_Opts> &opts );
RootPtr createConfig( EncFS_Context *ctx,
const shared_ptr<EncFS_Opts> &opts );
void showFSInfo( const EncfsConfig &config );
bool readV4Config( const char *configFile, EncfsConfig &config,
struct ConfigInfo *);
bool readV5Config( const char *configFile, EncfsConfig &config,
struct ConfigInfo *);
bool readV6Config( const char *configFile, EncfsConfig &config,
struct ConfigInfo *);
bool readProtoConfig( const char *configFile, EncfsConfig &config,
struct ConfigInfo *);
} // namespace encfs
#endif