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CDiskRepartition.cpp
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CDiskRepartition.cpp
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#include "stdafx.h"
#include <windows.h>
//#include <iostream>
//#include <stdio.h>
#include <Cfgmgr32.h>
#include "tchar.h"
#include "CDiskRepartition.h"
//#include "iostream"
//#include <fstream>
//using namespace std;
#define BUFSIZE 206
#define IOCTL_VOLUME_ONLINE CTL_CODE(IOCTL_VOLUME_BASE, 2, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define IOCTL_VOLUME_OFFLINE CTL_CODE(IOCTL_VOLUME_BASE, 3, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
/*int WriteLog(WCHAR* format, ... )
{
return 0;
}*/
bool CDiskRepartition::WriteData(LPBYTE buffer, DWORD len, PLARGE_INTEGER Offset)
{
DWORD written;
DWORD bytewritten;
if (len%512)
{
WriteLog("len is no aliquot to 512");
return false;
}
if (hDevice == INVALID_HANDLE_VALUE)
{
WriteLog("Drive is no opened");
return false;
}
LARGE_INTEGER liOffset;
liOffset.QuadPart = Offset->QuadPart + _partitioned_space.QuadPart + partOffset2.QuadPart;
if (liOffset.QuadPart%512)
{
liOffset.QuadPart = 512 - (liOffset.QuadPart%512);
}
if (!SetFilePointer(hDevice, liOffset.LowPart, &liOffset.HighPart, FILE_BEGIN))
{
WriteLog("Error to set file pointer %d",GetLastError());
return false;
}
WriteFile(hDevice, buffer, len, &bytewritten, NULL);
if (bytewritten!=len)
{
DWORD gle = GetLastError();
WriteLog("Error to write file %d",gle);
return false;
}
//WriteLog("Write at %X ", liOffset.QuadPart);
return true;
}
bool CDiskRepartition::ReadData(LPBYTE buffer, DWORD len, PLARGE_INTEGER Offset)
{
DWORD written;
if (len%512)
{
WriteLog("len is no aliquot to 512");
return false;
}
if (hDevice == INVALID_HANDLE_VALUE)
{
WriteLog("Drive is no opened");
return false;
}
LARGE_INTEGER liOffset;
liOffset.QuadPart = Offset->QuadPart/*FS data offset*/ + _partitioned_space.QuadPart/*USB partition offset*/ + partOffset2.QuadPart/*Rohos disk data offset*/;
if (liOffset.QuadPart%512)
{
liOffset.QuadPart = 512 - (liOffset.QuadPart%512);
}
//SetFilePointer(hDevice, Offset.LowPart, &Offset.HighPart, FILE_BEGIN);
if (!SetFilePointer(hDevice, liOffset.LowPart, &liOffset.HighPart, FILE_BEGIN))
{
WriteLog("Error to set file pointer %d",GetLastError());
return false;
}
DWORD bytewritten;
BOOL b=ReadFile(hDevice, buffer, len, &bytewritten, NULL);
if (bytewritten!=len)
{
DWORD gle = GetLastError();
WriteLog("Error to read file %d",gle);
return false;
}
//WriteLog("Read at %X ", liOffset.QuadPart);
return true;
}
int CDiskRepartition::GetVolumesLetter(PCHAR VolumeName)
{
DWORD CharCount = MAX_PATH + 1;
char Names[20];
PWCHAR NameIdx = NULL;
BOOL Success = FALSE;
for (;;)
{
Success = GetVolumePathNamesForVolumeNameA(
VolumeName, (LPCH)Names, sizeof(Names), &CharCount
);
if ( Success )
{
return Names[0];
}
if ( GetLastError() != ERROR_MORE_DATA )
{
return -1;
}
else
{
return Names[0];
}
}
return -1;
}
//function check for new partition
//get volume letter for each partition
//and set free letter for it
int CDiskRepartition::enumeratevolumes(void)
{
//buffer for dos device volume name
char Let[4];
//buffer for GUID volume name
char buf[BUFSIZE];
HANDLE hVol;
BOOL bFlag = true;
sprintf(Let,"%c:\\",DiskName);
hVol = FindFirstVolumeA(buf, BUFSIZE );
if (hVol == INVALID_HANDLE_VALUE)
{
printf (TEXT("No volumes found!\n"));
return (-1);
}
while (bFlag)
{
bFlag = FindNextVolumeA(hVol,
buf,
BUFSIZE
);
if (GetVolumesLetter(buf)<65)
{
OutputDebugStringA(buf);
SetVolumeMountPoint(Let,buf);
bFlag = FindVolumeClose(hVol);
return false;
}
}
bFlag = FindVolumeClose(hVol);
return true;
}
//check is the bit with given number set
bool IsBitSet(DWORD val, int bit)
{
return (val & (1 << bit)) != 0;
}
void CDiskRepartition::SetDriveNum(int num)
{
DriveNum = num;
}
void CDiskRepartition::SetUnpartitionedSpace(LARGE_INTEGER _unpartitioned_space)
{
this->_unpartitioned_space = _unpartitioned_space;
}
void CDiskRepartition::SetDataOffset(PLARGE_INTEGER offs2)
{
this->partOffset2.QuadPart = offs2->QuadPart;
}
void CDiskRepartition::SetFilePointer2(PLARGE_INTEGER offs2)
{
this->partOffset.QuadPart = offs2->QuadPart;
}
LARGE_INTEGER CDiskRepartition::GetUnpartitionedSpace()
{
return _unpartitioned_space;
}
LARGE_INTEGER CDiskRepartition::GetPartitionedSpace()
{
return _partitioned_space;
}
void CDiskRepartition::SetDriveLetter(char driveletter)
{
this->DiskName = driveletter;
}
LARGE_INTEGER CDiskRepartition::GetDriveSpace()
{
LARGE_INTEGER li = _drive_space;
//li.QuadPart -= 50 * 1024 * 1024;
return li;
}
bool CDiskRepartition::RePartition(LARGE_INTEGER unpart)
{
SetUnpartitionedSpace(unpart);
return CreatePrimaryPartition();
}
int CDiskRepartition::CreatePrimaryPartition()
{
DWORD ReadedBytes;
LARGE_INTEGER oldunpart = _unpartitioned_space;
PARTITION_INFORMATION_EX* tmppartition;
CheckDisk();
//OpenDisk();
_unpartitioned_space = oldunpart;
_partitioned_space.QuadPart = _drive_space.QuadPart - _unpartitioned_space.QuadPart;
_partitioned_space.QuadPart -= (5 * 1024 * 1024); // leave 5 mb gap
int _open_part_kb = _partitioned_space.QuadPart / 1024;
WriteLog("CDiskRepartition: Part0 %d kb. Total %d kb", _open_part_kb, _drive_space.QuadPart / 1024);
if ( _open_part_kb <=10 )
{
_partitioned_space.QuadPart = 32 * 1024; // Rohos Logon Key takes 25Kb
_open_part_kb = _partitioned_space.QuadPart / 1024;
WriteLog("CDiskRepartition: Part0 fix %d kb", _open_part_kb);
}
if (hDevice == INVALID_HANDLE_VALUE)
{
return false;
}
if (!DiskName)
{
return false;
}
tmppartition = new PARTITION_INFORMATION_EX[4];
LARGE_INTEGER maxoffset;
maxoffset.QuadPart = 0;
SetFilePointer(hDevice, 0, NULL, FILE_BEGIN);
char buffer[512] = {'0'};
DWORD bytewritten;
WriteFile(hDevice, buffer, 512, &bytewritten, NULL);
DeviceIoControl((HANDLE) hDevice, IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
NULL, 0, (LPVOID) &driveinfo, (DWORD) 4096*16, (LPDWORD) &ReadedBytes, NULL);
for (int i = 0; i < 4; i++)
{
tmppartition[i].PartitionNumber = 0;
tmppartition[i].RewritePartition = 1;
tmppartition[i].StartingOffset.QuadPart = 0;
tmppartition[i].PartitionLength.QuadPart = 0;
tmppartition[i].Mbr.BootIndicator = 0;
tmppartition[i].Mbr.RecognizedPartition = 0;
tmppartition[i].Mbr.HiddenSectors = 0;
tmppartition[i].Mbr.PartitionType = 0;
tmppartition[i].PartitionStyle = (PARTITION_STYLE)0;
}
driveinfo.PartitionStyle = PARTITION_STYLE_MBR;
driveinfo.PartitionCount = 4;
driveinfo.Mbr.Signature = 0xA4B57300;
CopyMemory(&driveinfo.PartitionEntry[0],tmppartition,sizeof(PARTITION_INFORMATION_EX)*4);
if (!DeviceIoControl(hDevice,IOCTL_DISK_SET_DRIVE_LAYOUT_EX, &driveinfo,sizeof(DRIVE_LAYOUT_INFORMATION_EX)+driveinfo.PartitionCount * sizeof(PARTITION_INFORMATION_EX),
NULL,0,&ReadedBytes, (LPOVERLAPPED) NULL))
{
//log[0]<<"IOCTL_DISK_SET_DRIVE_LAYOUT_EX "<<GetLastError()<<endl<<flush;
WriteLog(L"IOCTL_DISK_SET_DRIVE_LAYOUT_EX %d \n",GetLastError());
return false;
}
if (!DeviceIoControl(hDevice,IOCTL_DISK_UPDATE_PROPERTIES, 0,0,
NULL,0,&ReadedBytes, (LPOVERLAPPED) NULL))
{
WriteLog(L"IOCTL_DISK_UPDATE_PROPERTIES %d \n",GetLastError());
//log[0]<<"IOCTL_DISK_UPDATE_PROPERTIES "<<GetLastError()<<endl<<flush;
return false;
}
//////////CREATE NEW PARTITION
DeviceIoControl((HANDLE) hDevice, IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
NULL, 0, (LPVOID) &driveinfo, (DWORD) 4096*16, (LPDWORD) &ReadedBytes, NULL);
tmppartition[0].PartitionNumber = 0;
tmppartition[0].RewritePartition = 1;
tmppartition[0].StartingOffset.QuadPart = 32256;
tmppartition[0].PartitionLength.QuadPart = _partitioned_space.QuadPart;
tmppartition[0].Mbr.BootIndicator = 0;
tmppartition[0].Mbr.RecognizedPartition = 1;
tmppartition[0].Mbr.HiddenSectors = (DWORD)tmppartition[0].StartingOffset.QuadPart / 512;
tmppartition[0].Mbr.PartitionType = 7;
tmppartition[0].PartitionStyle = (PARTITION_STYLE)0;
for (int i = 1; i < 4; i++)
{
tmppartition[i].PartitionNumber = 0;
tmppartition[i].RewritePartition = 1;
tmppartition[i].StartingOffset.QuadPart = 0;
tmppartition[i].PartitionLength.QuadPart = 0;
tmppartition[i].Mbr.BootIndicator = 0;
tmppartition[i].Mbr.RecognizedPartition = 0;
tmppartition[i].Mbr.HiddenSectors = 0;
tmppartition[i].Mbr.PartitionType = 0;
tmppartition[i].PartitionStyle = (PARTITION_STYLE)0;
}
driveinfo.PartitionStyle = PARTITION_STYLE_MBR;
driveinfo.PartitionCount = 4;
driveinfo.Mbr.Signature = 0xA4B57300;
CopyMemory(&driveinfo.PartitionEntry[0],tmppartition,sizeof(PARTITION_INFORMATION_EX)*4);
if (!DeviceIoControl(hDevice,IOCTL_DISK_SET_DRIVE_LAYOUT_EX, &driveinfo,sizeof(DRIVE_LAYOUT_INFORMATION_EX)+driveinfo.PartitionCount * sizeof(PARTITION_INFORMATION_EX),
NULL,0,&ReadedBytes, (LPOVERLAPPED) NULL))
{
//log[0]<<"IOCTL_DISK_SET_DRIVE_LAYOUT_EX "<<GetLastError()<<endl<<flush;
WriteLog(L"IOCTL_DISK_SET_DRIVE_LAYOUT_EX %d \n",GetLastError());
return false;
}
if (!DeviceIoControl(hDevice,IOCTL_DISK_UPDATE_PROPERTIES, 0,0,
NULL,0,&ReadedBytes, (LPOVERLAPPED) NULL))
{
WriteLog(L"IOCTL_DISK_UPDATE_PROPERTIES %d \n",GetLastError());
// log[0]<<"IOCTL_DISK_UPDATE_PROPERTIES "<<GetLastError()<<endl<<flush;
return false;
}
delete tmppartition;
//CloseHandle(hDevice);
return true;
}
bool CDiskRepartition::CheckDisk()
{
DWORD ReadedBytes;
PARTITION_INFORMATION_EX tmppartition;
if(!(OpenDisk() == INVALID_HANDLE_VALUE))
{
DeviceIoControl((HANDLE) hDevice, IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
NULL, 0, (LPVOID) &driveinfo, (DWORD) 4096*16, (LPDWORD) &ReadedBytes, NULL);
CopyMemory(&tmppartition,&driveinfo.PartitionEntry[0],sizeof(PARTITION_INFORMATION_EX));
_partitioned_space.QuadPart = tmppartition.StartingOffset.QuadPart + tmppartition.PartitionLength.QuadPart; /*+ 30208*/;
LARGE_INTEGER startOff = tmppartition.StartingOffset;
_unpartitioned_space.QuadPart = _drive_space.QuadPart - _partitioned_space.QuadPart ;
//_unpartitioned_space.QuadPart -= ( * 1024 * 1024); // leave 10mb gap
//CloseDisk();
WriteLog("Hidden part kb %d. Total %d kb", _unpartitioned_space.QuadPart / 1024, _drive_space.QuadPart / 1024);
return true;
}
else
{
_partitioned_space.QuadPart = 0;
_unpartitioned_space.QuadPart = 0;
_drive_space.QuadPart = 0;
}
return false;
}
void CDiskRepartition::CloseDisk()
{
CloseHandle(hDevice);
}
HANDLE CDiskRepartition::OpenDisk()
{
DWORD BytesReturned;
PARTITION_INFORMATION_EX tmppartition;
VOLUME_DISK_EXTENTS vde;
// Device\Harddisk1\DP(1)0-0+10" char [200]
ZeroMemory(DriveName,20);
sprintf(DriveName,"\\\\.\\%c:",DiskName);
//BytesReturned = QueryDosDevice(DriveName,DriveName,200);
hDevice = CreateFileA(DriveName,GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,(HANDLE)-1);
if (hDevice == INVALID_HANDLE_VALUE)
{
WriteLog("CreateFile %d \n",GetLastError());
//log[0]<<"CreateFileA "<<GetLastError()<<endl<<flush;
return INVALID_HANDLE_VALUE;
}
if (DeviceIoControl(hDevice, // device to be queried
IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, // operation to perform
NULL, 0, // no input buffer
&vde, sizeof(vde), // output buffer
&BytesReturned, // # bytes returned
(LPOVERLAPPED) NULL)) // synchronous I/O
{
}
else
{
WriteLog("IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS %d \n",GetLastError());
//log[0]<<"IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS "<<GetLastError()<<endl<<flush;
return INVALID_HANDLE_VALUE;
}
if (vde.NumberOfDiskExtents>0)
{
sprintf(DriveName,"\\\\.\\PHYSICALDRIVE%d",vde.Extents[0].DiskNumber);
}
else
{
WriteLog("IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS didn't return data %d \n",GetLastError());
// log[0]<<"IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS didn't return data"<<GetLastError()<<endl<<flush;
return INVALID_HANDLE_VALUE;
}
CloseHandle(hDevice);
hDevice = CreateFileA(DriveName,GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,NULL,OPEN_EXISTING,0,(HANDLE)-1);
//log[0]<<"CreateFileA "<<GetLastError()<<endl<<flush;
if (hDevice == INVALID_HANDLE_VALUE)
{
WriteLog("CreateFileA %X (%s)\n",GetLastError(), DriveName);
return INVALID_HANDLE_VALUE;
}
if (DeviceIoControl(hDevice, // device to be queried
IOCTL_DISK_GET_DRIVE_GEOMETRY, // operation to perform
NULL, 0, // no input buffer
&DiskGeometry, sizeof(DiskGeometry), // output buffer
&BytesReturned, // # bytes returned
(LPOVERLAPPED) NULL)) // synchronous I/O
{
_drive_space.QuadPart = DiskGeometry.Cylinders.QuadPart * (ULONG)DiskGeometry.TracksPerCylinder *
(ULONG)DiskGeometry.SectorsPerTrack * (ULONG)DiskGeometry.BytesPerSector;
}
else
{
//log[0]<<"IOCTL_DISK_GET_DRIVE_GEOMETRY "<<GetLastError()<<endl<<flush;
WriteLog(L"IOCTL_DISK_GET_DRIVE_GEOMETRY \n",GetLastError());
return INVALID_HANDLE_VALUE;
}
DeviceIoControl((HANDLE) hDevice, IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
NULL, 0, (LPVOID) &driveinfo, (DWORD) 4096*16, (LPDWORD) &BytesReturned, NULL);
CopyMemory(&tmppartition,&driveinfo.PartitionEntry[0],sizeof(PARTITION_INFORMATION_EX));
// open partition space
_partitioned_space.QuadPart = tmppartition.StartingOffset.QuadPart + tmppartition.PartitionLength.QuadPart;
// encrypted partition space
_unpartitioned_space.QuadPart = _drive_space.QuadPart - _partitioned_space.QuadPart ;
partOffset2.QuadPart = 0;
partOffset.QuadPart = 0;
return hDevice;
}
CDiskRepartition::CDiskRepartition()
{
this->DriveNum = -1;
this->DiskName = 0;
this->_unpartitioned_space.QuadPart = 0;
this->_partitioned_space.QuadPart = 0;
this->_drive_space.QuadPart = 0;
partOffset2.QuadPart = 0;
partOffset.QuadPart = 0;
}
/*
int main()
{
CDiskRepartition *cdp;
LARGE_INTEGER _unpartitioned_size;
_unpartitioned_size.QuadPart = 500*1024*1024;
cdp = new CDiskRepartition(1,'Z',_unpartitioned_size);
cdp->RePartition();
delete cdp;
}
*/