public static bool SetOID(NDIS_OID oid, string adapterName, byte[] data)
{
NDISQueryOid query = new NDISQueryOid(data.Length);
query.Data = data;
return(SetOID(oid, adapterName, query));
}
public unsafe static bool SetOID(NDIS_OID oid, string adapterName, NDISQueryOid queryOID)
{
NDISUIO ndis = new NDISUIO();
if (queryOID == null)
{
queryOID = new NDISQueryOid(0);
}
byte[] nameBytes = System.Text.Encoding.Unicode.GetBytes(adapterName + '\0');
fixed(byte *pName = &nameBytes[0])
{
queryOID.ptcDeviceName = pName;
queryOID.Oid = (uint)oid;
try
{
ndis.Open(System.IO.FileAccess.ReadWrite, System.IO.FileShare.ReadWrite);
}
catch
{
throw new NetworkInformationException(System.Runtime.InteropServices.Marshal.GetLastWin32Error());
}
try
{
ndis.DeviceIoControl(IOCTL_NDISUIO_SET_OID_VALUE, queryOID.getBytes(), queryOID.getBytes());
}
catch (Exception)
{
return(false);
}
}
ndis.Dispose();
return(true);
}
public unsafe static byte[] QueryOID(NDIS_OID oid, string adapterName)
{
if ((adapterName == null) || (adapterName == string.Empty))
{
// no point in even trying to call NDIS if this is the case
return(null);
}
NDISUIO ndis = new NDISUIO();
NDISQueryOid queryOID;
byte[] result;
try
{
switch (oid)
{
case NDIS_OID.RSSI:
case NDIS_OID.WEP_STATUS:
case NDIS_OID.BSSID_LIST_SCAN:
case NDIS_OID.AUTHENTICATION_MODE:
case NDIS_OID.INFRASTRUCTURE_MODE:
case NDIS_OID.NETWORK_TYPE_IN_USE:
queryOID = new NDISQueryOid(4); // The data is a four-byte signed int
break;
case NDIS_OID.BSSID:
queryOID = new NDISQueryOid(36);
break;
case NDIS_OID.SUPPORTED_RATES:
queryOID = new NDISQueryOid(8);
break;
case NDIS_OID.CONFIGURATION:
queryOID = new NDISQueryOid(32);
break;
case NDIS_OID.SSID:
queryOID = new NDISQueryOid(36); // The data is a four-byte length plus 32-byte ASCII string
break;
case NDIS_OID.BSSID_LIST:
queryOID = new NDISQueryOid(2000);
break;
default:
throw new NotSupportedException(string.Format("'NDIS_OID_{0}' Not supported", oid.ToString()));
}
byte[] nameBytes = System.Text.Encoding.Unicode.GetBytes(adapterName + '\0');
fixed(byte *pName = &nameBytes[0])
{
queryOID.ptcDeviceName = pName;
queryOID.Oid = (uint)oid;
try
{
ndis.Open(System.IO.FileAccess.ReadWrite, System.IO.FileShare.ReadWrite);
}
catch
{
throw new NetworkInformationException(System.Runtime.InteropServices.Marshal.GetLastWin32Error());
}
try
{
ndis.DeviceIoControl(IOCTL_NDISUIO_QUERY_OID_VALUE, queryOID.getBytes(), queryOID.getBytes());
}
catch (Exception)
{
// if it's an attempt to get a list it might be an OOM
// are we trying to get a list?
if (oid != NDIS_OID.BSSID_LIST)
{
throw new NetworkInformationException();
}
// maybe just an OOM - try again
GC.Collect();
queryOID = new NDISQueryOid(8000);
queryOID.ptcDeviceName = pName;
queryOID.Oid = (uint)oid;
ndis.DeviceIoControl(IOCTL_NDISUIO_QUERY_OID_VALUE, queryOID.getBytes(), queryOID.getBytes());
}
finally
{
ndis.Close();
}
result = new byte[queryOID.Data.Length];
Buffer.BlockCopy(queryOID.Data, 0, result, 0, result.Length);
}
}
finally
{
ndis.Dispose();
}
return(result);
}
