internal static extern Int32 BluetoothSendAuthenticationResponse(IntPtr hRadio, ref BLUETOOTH_DEVICE_INFO pbtdi, string pszPasskey);
internal static extern int BluetoothUpdateDeviceRecord(ref BLUETOOTH_DEVICE_INFO pbtdi);
internal static extern UInt32 BluetoothRegisterForAuthenticationEx(
ref BLUETOOTH_DEVICE_INFO pbtdi,
out BluetoothAuthenticationRegistrationHandle phRegHandle,
BluetoothAuthenticationCallbackEx pfnCallback,
IntPtr pvParam);
internal static extern int BluetoothSetServiceState(IntPtr hRadio, ref BLUETOOTH_DEVICE_INFO pbtdi, ref Guid pGuidService, int dwServiceFlags);
internal static extern int BluetoothGetDeviceInfo(IntPtr hRadio, ref BLUETOOTH_DEVICE_INFO pbtdi);
internal static extern int BluetoothEnumerateInstalledServices(IntPtr hRadio, ref BLUETOOTH_DEVICE_INFO pbtdi, ref int pcServices, byte[] pGuidServices);
internal static extern bool BluetoothDisplayDeviceProperties(IntPtr hwndParent, ref BLUETOOTH_DEVICE_INFO pbtdi);
internal static extern int BluetoothAuthenticateDeviceEx(IntPtr hwndParentIn, IntPtr hRadioIn, ref BLUETOOTH_DEVICE_INFO pbtdiInout, byte[] pbtOobData, BluetoothAuthenticationRequirements authenticationRequirement);
internal static extern int BluetoothAuthenticateDevice(IntPtr hwndParent, IntPtr hRadio, ref BLUETOOTH_DEVICE_INFO pbtdi, string pszPasskey, int ulPasskeyLength);
//TODO PairRequest XmlDocs for XP and CE pre 5.0.
/// <summary>
/// Intiates pairing for a remote device.
/// </summary>
/// <param name="device">Remote device with which to pair.</param>
/// <param name="pin">Chosen PIN code, must be between 1 and 16 ASCII characters.</param>
/// <remarks><para>On Windows CE platforms this calls <c>BthPairRequest</c>,
/// its MSDN remarks say:
/// </para>
/// <para>“BthPairRequest passes the parameters to the <c>BthSetPIN</c>
/// function and creates an ACL connection. Once the connection is established,
/// it calls the <c>BthAuthenticate</c> function to authenticate the device.”
/// </para>
/// <para>On Windows XP/Vista platforms this calls <c>BluetoothAuthenticateDevice</c>,
/// if the pin argument is set to null a Wizard is displayed to accept a PIN from the user,
/// otherwise the function executes in transparent mode.
/// </para>
/// <para>See also
/// <see cref="M:InTheHand.Net.Bluetooth.BluetoothSecurity.SetPin(InTheHand.Net.BluetoothAddress,System.String)"/>
/// </para>
/// </remarks>
/// <returns>Whether the operation was successful.</returns>
public bool PairRequest(BluetoothAddress device, string pin)
{
if (device == null)
{
throw new ArgumentNullException("device");
}
if (device.ToInt64() == 0)
{
throw new ArgumentNullException("device", "A non-blank address must be specified.");
}
#if NETCF
if (pin == null)
{
throw new ArgumentNullException("pin");
}
bool success = false;
IBluetoothDeviceInfo bdi = new WindowsBluetoothDeviceInfo(device);
if (System.Environment.OSVersion.Version.Major >= 5)
{
byte[] pinbytes = System.Text.Encoding.ASCII.GetBytes(pin);
int len = pin.Length;
int result = NativeMethods.BthPairRequest(device.ToByteArray(), len, pinbytes);
if (result == 0)
{
success = true;
}
}
else
{
//BthPairRequest is CE 5.0 onwards so we will do it with individual steps
//preset outgoing pin
success = SetPin(device, pin);
if (success)
{
int hresult;
ushort handle = 0;
//connect to device
try
{
hresult = NativeMethods.BthCreateACLConnection(device.ToByteArray(), out handle);
if (hresult != 0)
{
success = false;
}
else
{
//force authentication
hresult = NativeMethods.BthAuthenticate(device.ToByteArray());
if (hresult != 0)
{
success = false;
}
}
}
finally
{
if (handle != 0)
{
//close connection
hresult = NativeMethods.BthCloseConnection(handle);
}
}
}
}
if (success)
{
//setup UI pairing (registry)
RegistryKey rkDevices = Registry.LocalMachine.CreateSubKey(NativeMethods.ceRegistryRoot + "\\Device");
RegistryKey rkNewDevice = rkDevices.CreateSubKey(device.ToString());
rkNewDevice.SetValue("name", bdi.DeviceName);
rkNewDevice.SetValue("trusted", 1);
rkNewDevice.SetValue("class", bdi.ClassOfDevice.GetHashCode());
//#if V2
RegistryKey rkServices = rkNewDevice.CreateSubKey("Services");
ServiceRecord[] recs = bdi.GetServiceRecords(BluetoothService.SerialPort);
//byte[][] recs = bdi.GetServiceRecordsUnparsedWindowsRaw(BluetoothService.SerialPort);
if (recs.Length > 0)
{
byte[] servRecord = recs[0].SourceBytes;
RegistryKey rkSerial = rkServices.CreateSubKey(BluetoothService.SerialPort.ToString());
rkSerial.SetValue("sdprecord", servRecord);
rkSerial.SetValue("Name", "Serial Port");
rkSerial.SetValue("enabled", 1);
int channel = ServiceRecordHelper.GetRfcommChannelNumber(recs[0]);
if (channel != -1)
{
rkSerial.SetValue("channel", 0x14b0000 + channel);
}
else
{
System.Diagnostics.Debug.Fail("PairRequest CE, peer SPP record missing channel.");
}
rkSerial.Close();
}
rkServices.Close();
//#endif
rkNewDevice.Close();
rkDevices.Close();
}
return(success);
#else
//use other constructor to ensure struct size is set
BLUETOOTH_DEVICE_INFO bdi = new BLUETOOTH_DEVICE_INFO(device.ToInt64());
//string length, but allow for null pins for UI
int length = 0;
if (pin != null)
{
length = pin.Length;
}
int result = NativeMethods.BluetoothAuthenticateDevice(IntPtr.Zero, IntPtr.Zero, ref bdi, pin, length);
if (result != 0)
{
//determine error cause from "result"...
// ERROR_INVALID_PARAMETER 87
// WAIT_TIMEOUT 258
// ERROR_NOT_AUTHENTICATED 1244
Debug.WriteLine("PairRequest/BAD failed with: " + result);
return(false);
}
return(true);
#endif
}
