urbackup_backend/fsimageplugin/FSImageFactory.cpp
2012-01-28 01:10:12 +01:00

143 lines
3.6 KiB
C++

/*************************************************************************
* UrBackup - Client/Server backup system
* Copyright (C) 2011 Martin Raiber
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
**************************************************************************/
#include "FSImageFactory.h"
#include "../Interface/Server.h"
#include "../Interface/File.h"
#include "fs/ntfs.h"
#ifdef _WIN32
#include "fs/ntfs_win.h"
#define FSNTFS FSNTFSWIN
#endif
#include "fs/unknown.h"
#include "vhdfile.h"
#include "../stringtools.h"
void PrintInfo(IFilesystem *fs)
{
Server->Log("FSINFO: blocksize="+nconvert(fs->getBlocksize())+" size="+nconvert(fs->getSize())+" has_error="+nconvert(fs->hasError())+" used_space="+nconvert(fs->calculateUsedSpace()), LL_DEBUG);
}
IFilesystem *FSImageFactory::createFilesystem(const std::wstring &pDev)
{
IFile *dev=Server->openFile(pDev, MODE_READ);
if(dev==NULL)
{
Server->Log(L"Error opening device file ("+pDev+L")", LL_ERROR);
return NULL;
}
char buffer[1024];
_u32 rc=dev->Read(buffer, 1024);
if(rc!=1024)
{
Server->Log(L"Error reading data from device ("+pDev+L")", LL_ERROR);
return NULL;
}
Server->destroy(dev);
if(isNTFS(buffer) )
{
Server->Log("Filesystem type is ntfs", LL_DEBUG);
FSNTFS *fs=new FSNTFS(pDev);
/*
int64 idx=0;
while(idx<fs->getSize()/fs->getBlocksize())
{
std::string b1;
std::string b2;
int64 idx_start=idx;
for(size_t i=0;i<100;++i)
{
b1+=nconvert((int)fs->readBlock(idx, NULL));
b2+=nconvert((int)fs2->readBlock(idx, NULL));
++idx;
}
if(b1!=b2)
{
Server->Log(nconvert(idx_start)+" fs1: "+b1, LL_DEBUG);
Server->Log(nconvert(idx_start)+" fs2: "+b2, LL_DEBUG);
}
}*/
if(fs->hasError())
{
Server->Log("NTFS has error", LL_WARNING);
delete fs;
Server->Log("Unknown filesystem type", LL_DEBUG);
FSUnknown *fs2=new FSUnknown(pDev);
if(fs2->hasError())
{
delete fs2;
return NULL;
}
PrintInfo(fs2);
return fs2;
}
PrintInfo(fs);
return fs;
}
else
{
Server->Log("Unknown filesystem type", LL_DEBUG);
FSUnknown *fs=new FSUnknown(pDev);
if(fs->hasError())
{
delete fs;
return NULL;
}
PrintInfo(fs);
return fs;
}
}
bool FSImageFactory::isNTFS(char *buffer)
{
if(buffer[3]=='N' && buffer[4]=='T' && buffer[5]=='F' && buffer[6]=='S')
{
return true;
}
else
{
return false;
}
}
void FSImageFactory::destroyFilesystem(IFilesystem *fs)
{
delete fs;
}
IVHDFile *FSImageFactory::createVHDFile(const std::wstring &fn, bool pRead_only, uint64 pDstsize, unsigned int pBlocksize, bool fast_mode)
{
return new VHDFile(fn, pRead_only, pDstsize, pBlocksize, fast_mode);
}
IVHDFile *FSImageFactory::createVHDFile(const std::wstring &fn, const std::wstring &parent_fn, bool pRead_only, bool fast_mode)
{
return new VHDFile(fn, parent_fn, pRead_only, fast_mode);
}
void FSImageFactory::destroyVHDFile(IVHDFile *vhd)
{
delete ((VHDFile*)vhd);
}