实现应用层程序与win2k下wdm驱动程序的通信有几种方法,请详细说明!(50分)

如题,来个基础性的讨论吧!

可以利用Win32API函数实现，如：CreateFile、Read/WriteFile,以及DeviceIoControl等等。对于自己的io代码可以使用最后一个函数

1) Create a named pipe from WIN32 using CreateNamedPipe(), for example, \"\\\\.\\pipe\\mypipe\"
hPipe = CreateNamedPipe( \"\\\\\\\\.\\\\pipe\\\\mypipe\",
PIPE_ACCESS_DUPLEX,
PIPE_TYPE_MESSAGE|PIPE_READMODE_MESSAGE,
PIPE_UNLIMITED_INSTANCES,
256,256, 10000, NULL);

2)kernel mode use ZwCreateFile() to open it, the above \"\\\\.\\pipe\\mypipe\" will be mapped with \"\\NamedPipe\\mypipe\", then use ZwReadFile() and ZwWriteFile() just like a normal file. Or, you may create a thread to handle it

3)user mode, a reader may be as simple as:
ConnectNamedPipe (hPipe, NULL);
while (1)
{
if (!ReadFile(hPipe, msg, sizeof (msg), &count, NULL) )
  if (GetLastError() == ERROR_BROKEN_PIPE )
    break;
...
}

additionally, you can try those block/non-block features like a socket connection

good luck and have fun

可以利用Win32API函数实现，如：CreateFile、Read/WriteFile,以及DeviceIoControl等等。对于自己的io代码可以使用最后一个函数

再加CloseHandle，CancelIo等也就差不多了