问题描述
我的目标是为原始usb磁盘创建完整磁盘大小的分区。代码片段如下：
// usbpartition.cpp：定义控制台应用程序的入口点。
//
#includestdafx.h
#includewindows.h
int _tmain（int argc，_TCHAR * argv []）
{
bool bResult = false; //通用结果标志
HANDLE hDevice; //处理要检查的驱动器
DWORD垃圾= 0; //丢弃结果
hDevice = CreateFile（TEXT（\\\\\\\\PhysicalDrive1），//\\\ \\\\\PhysicalDrive1，//开车开启
GENERIC_READ | GENERIC_WRITE，//无法访问驱动器
FILE_SHARE_READ | //分享模式
FILE_SHARE_WRITE，
NULL，//默认安全属性
OPEN_EXISTING，//处置
0，/ / file attributes
NULL）; //不要复制文件属性
if（hDevice == INVALID_HANDLE_VALUE）//无法打开驱动器
{
返回GetLastError（）;
}
CREATE_DISK dsk;
dsk.PartitionStyle = PARTITION_STYLE_MBR;
dsk.Mbr.Signature = 9999;
//初始化磁盘
bResult = DeviceIoControl（hDevice， //要查询的设备
IOCTL_DISK_CREATE_DISK，//执行的操作
&dsk，sizeof（dsk），// sizeof（pdg），//输出缓冲区
NULL，0，//无输出缓冲区
&junk，//返回＃字节
NULL）;
if（！bResult）
{
返回GetLastError（）;
}
bResult = DeviceIoControl（hDevice，
IOCTL_DISK_UPDATE_PROPERTIES，
NULL，0，NULL，0，&junk ，NULL）;
if（！bResult）
{
返回GetLastError（）;
}
LARGE_INTEGER lgPartitionSize;
lgPartitionSize.QuadPart =（1024 * 1024 * 1024）;
DWORD dwDriverLayoutInfoExLen = sizeof（DRIVE_LAYOUT_INFORMATION_EX）+ 3 * sizeof（PARTITION_INFORMATION_EX）;
DRIVE_LAYOUT_INFORMATION_EX * pdg =（DRIVE_LAYOUT_INFORMATION_EX *）new BYTE [dwDriverLayoutInfoExLen];
if（pdg == NULL）
{
返回-1;
}
SecureZeroMemory（pdg， dwDriverLayoutInfoExLen）;
//在每个分区中设置RewritePartition = true以强制重写。
// for（int item = 0; item< 4; item ++）{
// pdg-> PartitionEntry [item] .RewritePartition = 1;
// pdg-> PartitionEntry [item] .PartitionNumber = 0;
//}
pdg- > PartitionStyle = PARTITION_STYLE_MBR;
pdg-> PartitionCount = 1;
pdg-> Mbr.Signature = 99999;
pdg-> PartitionEntry [0] .PartitionStyle = PARTITION_STYLE_MBR;
pdg-> PartitionEntry [0] .StartingOffset.QuadPart = 32256; // 63
pdg-> PartitionEntry [0] .PartitionLength.QuadPart = lgPartitionSize.QuadPart; // lgPartitionSize.QuadPart * 36;
pdg-> PartitionEntry [0] .PartitionNumber = 1;
pdg-> PartitionEntry [0] .RewritePartition = TRUE;
pdg-> PartitionEntry [0] .Mbr.PartitionType = PARTITION_FAT32; // PARTITION_IFS（NTFS分区或逻辑驱动器）
pdg-> PartitionEntry [0] .Mbr.BootIndicator = false;
pdg-> PartitionEntry [0]。 Mbr.RecognizedPartition = 1;
pdg-> PartitionEntry [0] .Mbr.HiddenSectors = 0; // 32256/512;
//分区磁盘
bResult = DeviceIoControl（hDevice，//要查询的设备
IOCTL_DISK_SET_DRIVE_LAYOUT_EX ，//执行操作
pdg，sizeof DRIVE_LAYOUT_INFORMATION_EX，// sizeof（pdg），//输出缓冲区
NULL，0，//无输出缓冲区
&junk，//返回＃字节
NULL）;
if（！bResult）
{
返回GetLastError（）;
}
bResult = DeviceIoControl（hDevice，
IOCTL_DISK_UPDATE_PROPERTIES，
NULL ，0，NULL，0，&junk，NULL）;
if（！bResult）
{
返回GetLastError（）;
}
PARTITION_INFORMATION_EX dskinfo;
PARTITION_INFORMATION_MBR mbrinfo;
mbrinfo.PartitionType = PARTITION_FAT32; // PARTITION_NTFT;
mbrinfo.HiddenSectors = 0; //（32256/512）;
mbrinfo.BootIndicator = 0; // 1;
mbrinfo.RecognizedPartition = 1;
dskinfo.PartitionStyle = PARTITION_STYLE_MBR;
dskinfo.StartingOffset.QuadPart = 32256;
dskinfo.PartitionLength.QuadPart = lgPartitionSize.QuadPart; //lgPartitionSize.QuadPart * 36;
dskinfo.PartitionNumber = 1;
dskinfo.RewritePartition = TRUE;
dskinfo.Mbr = mbrinfo;
// IOCTL_DISK_SET_PARTITION_INFO_EX无法成功
bResult = DeviceIoControl（hDevice，//要查询的设备
IOCTL_DISK_SET_PARTITION_INFO_EX，//要执行的操作
&dskinfo，sizeof（dskinfo），// sizeof（pdg），//输出缓冲区
NULL，0，//无输出缓冲区
&junk，//＃bytes返回
//（LPOVERLAPPED）
NULL）;
if（！bResult）
{
int out = GetLastError（）;
printf（output = ％d \ n，out）;
// OutputDebugString（Loutput，GetLastError（））;
退出;
}
返回0;
}
但是IOCTL IOCTL_DISK_SET_PARTITION_INFO_EX失败，错误代码为31.请帮我判断我的代码是否正确..
Hi,
My aim is to create partition to the full disk size for a raw usb disk. The code snippet is as follows:
// usbpartition.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "windows.h"
int _tmain(int argc, _TCHAR* argv[])
{
bool bResult = false; // generic results flag
HANDLE hDevice; // handle to the drive to be examined
DWORD junk = 0; // discard results
hDevice = CreateFile(TEXT("\\\\.\\PhysicalDrive1"), //"\\\\.\\PhysicalDrive1", // drive to open
GENERIC_READ | GENERIC_WRITE, // no access to the drive
FILE_SHARE_READ | // share mode
FILE_SHARE_WRITE,
NULL, // default security attributes
OPEN_EXISTING, // disposition
0, // file attributes
NULL); // do not copy file attributes
if (hDevice == INVALID_HANDLE_VALUE) // cannot open the drive
{
return GetLastError();
}
CREATE_DISK dsk;
dsk.PartitionStyle = PARTITION_STYLE_MBR;
dsk.Mbr.Signature = 9999;
// Initialize disk
bResult = DeviceIoControl(hDevice, // device to be queried
IOCTL_DISK_CREATE_DISK, // operation to perform
&dsk, sizeof(dsk), //sizeof(pdg), // output buffer
NULL, 0, // no output buffer
&junk, // # bytes returned
NULL);
if (!bResult)
{
return GetLastError();
}
bResult = DeviceIoControl(hDevice,
IOCTL_DISK_UPDATE_PROPERTIES,
NULL, 0, NULL, 0, &junk, NULL);
if (! bResult)
{
return GetLastError();
}
LARGE_INTEGER lgPartitionSize;
lgPartitionSize.QuadPart = (1024 * 1024 * 1024);
DWORD dwDriverLayoutInfoExLen = sizeof (DRIVE_LAYOUT_INFORMATION_EX) + 3 * sizeof(PARTITION_INFORMATION_EX);
DRIVE_LAYOUT_INFORMATION_EX *pdg = (DRIVE_LAYOUT_INFORMATION_EX *)new BYTE[dwDriverLayoutInfoExLen];
if (pdg == NULL)
{
return -1;
}
SecureZeroMemory(pdg, dwDriverLayoutInfoExLen);
// set RewritePartition=true in every partition to force rewrite.
// for (int item = 0; item < 4; item++){
// pdg->PartitionEntry[item].RewritePartition = 1;
// pdg->PartitionEntry[item].PartitionNumber = 0;
// }
pdg->PartitionStyle = PARTITION_STYLE_MBR;
pdg->PartitionCount = 1;
pdg->Mbr.Signature = 99999;
pdg->PartitionEntry[0].PartitionStyle = PARTITION_STYLE_MBR;
pdg->PartitionEntry[0].StartingOffset.QuadPart = 32256; // 63
pdg->PartitionEntry[0].PartitionLength.QuadPart = lgPartitionSize.QuadPart; // lgPartitionSize.QuadPart * 36;
pdg->PartitionEntry[0].PartitionNumber = 1;
pdg->PartitionEntry[0].RewritePartition = TRUE;
pdg->PartitionEntry[0].Mbr.PartitionType = PARTITION_FAT32; // PARTITION_IFS (NTFS partition or logical drive)
pdg->PartitionEntry[0].Mbr.BootIndicator = false;
pdg->PartitionEntry[0].Mbr.RecognizedPartition = 1;
pdg->PartitionEntry[0].Mbr.HiddenSectors = 0; // 32256 / 512;
// partition a disk
bResult = DeviceIoControl(hDevice, // device to be queried
IOCTL_DISK_SET_DRIVE_LAYOUT_EX, // operation to perform
pdg, sizeof DRIVE_LAYOUT_INFORMATION_EX, //sizeof(pdg), // output buffer
NULL, 0, // no output buffer
&junk, // # bytes returned
NULL);
if (!bResult)
{
return GetLastError();
}
bResult = DeviceIoControl(hDevice,
IOCTL_DISK_UPDATE_PROPERTIES,
NULL, 0, NULL, 0, &junk, NULL);
if (!bResult)
{
return GetLastError();
}
PARTITION_INFORMATION_EX dskinfo;
PARTITION_INFORMATION_MBR mbrinfo;
mbrinfo.PartitionType = PARTITION_FAT32; //PARTITION_NTFT;
mbrinfo.HiddenSectors = 0; //(32256 / 512);
mbrinfo.BootIndicator = 0; //1;
mbrinfo.RecognizedPartition = 1;
dskinfo.PartitionStyle = PARTITION_STYLE_MBR;
dskinfo.StartingOffset.QuadPart = 32256;
dskinfo.PartitionLength.QuadPart = lgPartitionSize.QuadPart; //lgPartitionSize.QuadPart * 36;
dskinfo.PartitionNumber = 1;
dskinfo.RewritePartition = TRUE;
dskinfo.Mbr = mbrinfo;
// IOCTL_DISK_SET_PARTITION_INFO_EX can not perform successful
bResult = DeviceIoControl(hDevice, // device to be queried
IOCTL_DISK_SET_PARTITION_INFO_EX, // operation to perform
&dskinfo, sizeof(dskinfo), //sizeof(pdg), // output buffer
NULL, 0, // no output buffer
&junk, // # bytes returned
//(LPOVERLAPPED)
NULL);
if (!bResult)
{
int out = GetLastError();
printf("output=%d\n",out);
//OutputDebugString(L"output",GetLastError());
return out;
}
return 0;
}
But the IOCTL IOCTL_DISK_SET_PARTITION_INFO_EX fails with error code 31. Please help me out whether my code is right..
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