/// <summary>
/// Enumerate network adapters to bind to.
/// </summary>
/// <returns>
/// Returns an array of network adapters.
/// </returns>
private NetworkAdapter[] EnumerateAdapters ()
{
int adapterIndex = 0; // the current adapter index
bool validAdapter = true; // whether or not we are reading valid adapters
// temporary array to store adapter info in
NetworkAdapter[] adapters = new NetworkAdapter[10];
do
{
// buffer to hold returned data
byte[] buf = new byte[1024];
// number of bytes read into the buffer
uint bytesRead = 0;
// the query binding struct
NDISPROT_QUERY_BINDING ndisprot = new NDISPROT_QUERY_BINDING();
// size of the query binding struct
uint bufsize = (uint)Marshal.SizeOf(ndisprot);
// set the current index to the next adapter
ndisprot.BindingIndex = (ulong)adapterIndex;
// read the adapter info
unsafe
{
fixed (void* vpBuf = buf)
{
validAdapter = DeviceIoControl (m_hDevice, IOCTL_NDISPROT_QUERY_BINDING, (void*)&ndisprot, bufsize, vpBuf, (uint)buf.Length, &bytesRead, 0);
}
}
// if not a valid adapter, break out of the loop
if (!validAdapter)
{
break;
}
string tmpinfo = Encoding.Unicode.GetString(buf).Trim((char)0x00);
tmpinfo = tmpinfo.Substring(tmpinfo.IndexOf("\\"));
// store the adapter information
adapters[adapterIndex] = new NetworkAdapter ();
adapters[adapterIndex].Index = adapterIndex;
adapters[adapterIndex].AdapterID = tmpinfo.Substring(0, tmpinfo.IndexOf("}")+1);
adapters[adapterIndex].AdapterName = tmpinfo.Substring(tmpinfo.IndexOf("}")+1).Trim((char)0x00);
// increment the adapterIndex count
adapterIndex++;
}
while (validAdapter && adapterIndex < 10);
// copy the temp adapter struct to the return struct
NetworkAdapter[] returnInfo = new NetworkAdapter[adapterIndex];
for (int i=0; i < returnInfo.Length; i++)
{
returnInfo[i] = adapters[i];
}
// return the adapters
return returnInfo;
}
/// <summary>
/// Bind the driver to an adapter for use. Note that an adapter
/// can only be bound to by one driver at a time.
/// </summary>
/// <param name="adapter">
/// The adapter to bind to.
/// </param>
/// <exception cref="SystemException">
/// If the driver cannot be bound to, a system exception is thrown.
/// </exception>
public void BindAdapter (NetworkAdapter adapter)
{
// char array to hold the adapterID string
char[] ndisAdapter = new char[256];
// convert the string to a non-localized unicode char array
int nameLength = 0;
int i = 0;
for (i=0; i < adapter.AdapterID.Length; i++)
{
ndisAdapter[i] = adapter.AdapterID[i];
nameLength++;
}
// add the null char to terminate the string
ndisAdapter[i] = '\0';
uint bytesReturned;
bool ret = false;
// attempt to bind to the adapter
unsafe
{
fixed (void* vpNdisAdapter = &ndisAdapter[0])
{
ret = DeviceIoControl (m_hDevice, IOCTL_NDISPROT_OPEN_DEVICE, vpNdisAdapter, (uint)(nameLength*sizeof(char)), null, 0, &bytesReturned, 0);
}
}
if (ret)
{
m_boundAdapter = adapter;
}
else
{
throw new SystemException (Win32Error.GetErrorMessage (Marshal.GetLastWin32Error()));
}
}
/// <summary>
/// Enumerate network adapters to bind to.
/// </summary>
/// <returns>
/// Returns an array of network adapters.
/// </returns>
private NetworkAdapter[] EnumerateAdapters()
{
int adapterIndex = 0; // the current adapter index
bool validAdapter = true; // whether or not we are reading valid adapters
// temporary array to store adapter info in
NetworkAdapter[] adapters = new NetworkAdapter[10];
do
{
// buffer to hold returned data
byte[] buf = new byte[1024];
// number of bytes read into the buffer
uint bytesRead = 0;
// the query binding struct
NDISPROT_QUERY_BINDING ndisprot = new NDISPROT_QUERY_BINDING();
// size of the query binding struct
uint bufsize = (uint)Marshal.SizeOf(ndisprot);
// set the current index to the next adapter
ndisprot.BindingIndex = (ulong)adapterIndex;
// read the adapter info
unsafe
{
fixed(void *vpBuf = buf)
{
validAdapter = DeviceIoControl(m_hDevice, IOCTL_NDISPROT_QUERY_BINDING, (void *)&ndisprot, bufsize, vpBuf, (uint)buf.Length, &bytesRead, 0);
}
}
// if not a valid adapter, break out of the loop
if (!validAdapter)
{
break;
}
string tmpinfo = Encoding.Unicode.GetString(buf).Trim((char)0x00);
tmpinfo = tmpinfo.Substring(tmpinfo.IndexOf("\\"));
// store the adapter information
adapters[adapterIndex] = new NetworkAdapter();
adapters[adapterIndex].Index = adapterIndex;
adapters[adapterIndex].AdapterID = tmpinfo.Substring(0, tmpinfo.IndexOf("}") + 1);
adapters[adapterIndex].AdapterName = tmpinfo.Substring(tmpinfo.IndexOf("}") + 1).Trim((char)0x00);
// increment the adapterIndex count
adapterIndex++;
}while (validAdapter && adapterIndex < 10);
// copy the temp adapter struct to the return struct
NetworkAdapter[] returnInfo = new NetworkAdapter[adapterIndex];
for (int i = 0; i < returnInfo.Length; i++)
{
returnInfo[i] = adapters[i];
}
// return the adapters
return(returnInfo);
}