//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
}
IBluetoothDeviceInfo[] DoDiscoverDevices(int maxDevices,
bool authenticated, bool remembered, bool unknown, bool discoverableOnly,
InTheHand.Net.Sockets.BluetoothClient.LiveDiscoveryCallback liveDiscoHandler, object liveDiscoState)
{
WqsOffset.AssertCheckLayout();
CsaddrInfoOffsets.AssertCheckLayout();
//
#if !NETCF
Debug.Assert(liveDiscoHandler == null, "Don't use the NETCF live-disco feature on Win32!");
#endif
#if WinXP
const bool Win32DiscoverableOnlyIncludesAllDevices = false;
#endif
var prototype = new BluetoothEndPoint(BluetoothAddress.None, BluetoothService.Empty);
int discoveredDevices = 0;
List_IBluetoothDeviceInfo al = null;
IntPtr handle = IntPtr.Zero;
int lookupresult = 0;
/* Windows XP SP3
* Begin takes the full Inquiry time.
* 12:09:15.7968750: Begin
* 10.265s 12:09:26.0625000: Begin complete
* 12:09:26.0625000: Next
* 12:09:26.0625000: Next Complete
* ...
* 12:09:26.1718750: Next
* 12:09:26.1718750: Next Complete
* 12:09:26.1718750: End
* 12:09:26.1718750: End Complete
*/
/* WM 6 SP
* Begin is quick, Next blocks until a device is found.
* 13:46:47.1760000: Begin
* 13:46:47.2350000: Begin complete
* 13:46:47.2360000: Next
* 10.537s 13:46:57.7730000: Next Complete
* 13:46:57.8910000: Next
* 13:46:57.8940000: Next Complete
* 13:46:57.8950000: Next
* 13:46:57.8960000: Next Complete
* 13:46:57.8960000: End
* 13:46:57.8990000: End Complete
*
*/
System.Text.StringBuilder timings = null;
#if DEBUG
// timings = new System.Text.StringBuilder();
#endif
Action <string> markTime = delegate(string name) {
if (timings != null)
{
timings.AppendFormat(CultureInfo.InvariantCulture,
"{1}: {0}\r\n", name, DateTime.UtcNow.TimeOfDay);
}
};
#if WinXP
if (discoverableOnly && !Win32DiscoverableOnlyIncludesAllDevices)
{
// No way to separate out the devices-in-range on Win32. :-(
return(new IBluetoothDeviceInfo[0]);
}
#endif
#if NETCF
DateTime discoTime = DateTime.UtcNow;
if (unknown || discoverableOnly)
{
#endif
al = new List_IBluetoothDeviceInfo();
byte[] buffer = new byte[1024];
BitConverter.GetBytes(WqsOffset.StructLength_60).CopyTo(buffer, WqsOffset.dwSize_0);
BitConverter.GetBytes(WqsOffset.NsBth_16).CopyTo(buffer, WqsOffset.dwNameSpace_20);
int bufferlen = buffer.Length;
BTHNS_INQUIRYBLOB bib = new BTHNS_INQUIRYBLOB();
bib.LAP = iac;// 0x9E8B33;
#if NETCF
bib.length = Convert.ToByte(inquiryLength.TotalSeconds / 1.28);
bib.num_responses = Convert.ToByte(maxDevices);
#else
bib.length = Convert.ToByte(inquiryLength.TotalSeconds);
#endif
GCHandle hBib = GCHandle.Alloc(bib, GCHandleType.Pinned);
IntPtr pBib = hBib.AddrOfPinnedObject();
BLOB b = new BLOB(8, pBib);
GCHandle hBlob = GCHandle.Alloc(b, GCHandleType.Pinned);
Marshal32.WriteIntPtr(buffer, WqsOffset.lpBlob_56, hBlob.AddrOfPinnedObject());
//start looking for Bluetooth devices
LookupFlags flags = LookupFlags.Containers;
#if WinXP
//ensure cache is cleared on XP when looking for new devices
if (unknown || discoverableOnly)
{
flags |= LookupFlags.FlushCache;
}
#endif
markTime("Begin");
lookupresult = NativeMethods.WSALookupServiceBegin(buffer, flags, out handle);
markTime("Begin complete");
hBlob.Free();
hBib.Free();
// TODO ?Change "while(...maxDevices)" usage on WIN32?
while (discoveredDevices < maxDevices && lookupresult != -1)
{
markTime("Next");
#if NETCF
lookupresult = NativeMethods.WSALookupServiceNext(handle, LookupFlags.ReturnAddr | LookupFlags.ReturnBlob, ref bufferlen, buffer);
#else
LookupFlags flagsNext = LookupFlags.ReturnAddr;
#if WIN32_READ_BTH_DEVICE_INFO
flagsNext |= LookupFlags.ReturnBlob;
#endif
lookupresult = NativeMethods.WSALookupServiceNext(handle, flagsNext, ref bufferlen, buffer);
#endif
markTime("Next Complete");
if (lookupresult != -1)
{
//increment found count
discoveredDevices++;
//status
#if WinXP
BTHNS_RESULT status = (BTHNS_RESULT)BitConverter.ToInt32(buffer, WqsOffset.dwOutputFlags_52);
bool devAuthd = ((status & BTHNS_RESULT.Authenticated) == BTHNS_RESULT.Authenticated);
bool devRembd = ((status & BTHNS_RESULT.Remembered) == BTHNS_RESULT.Remembered);
if (devAuthd && !devRembd)
{
System.Diagnostics.Debug.WriteLine("Win32 BT disco: Auth'd but NOT Remembered.");
}
bool devUnkwn = !devRembd && !devAuthd;
bool include = (authenticated && devAuthd) || (remembered && devRembd) || (unknown && devUnkwn);
Debug.Assert(!discoverableOnly, "Expected short circuit for Win32 unsupported discoverableOnly!");
if (include)
#else
if (true)
#endif
{
#if NETCF
IntPtr lpBlob = (IntPtr)BitConverter.ToInt32(buffer, 56);
BLOB ib = (BLOB)Marshal.PtrToStructure(lpBlob, typeof(BLOB));
BthInquiryResult bir = (BthInquiryResult)Marshal.PtrToStructure(ib.pBlobData, typeof(BthInquiryResult));
#endif
//struct CSADDR_INFO {
// SOCKET_ADDRESS LocalAddr;
// SOCKET_ADDRESS RemoteAddr;
// INT iSocketType;
// INT iProtocol;
//}
//struct SOCKET_ADDRESS {
// LPSOCKADDR lpSockaddr;
// INT iSockaddrLength;
//}
//pointer to outputbuffer
IntPtr bufferptr = Marshal32.ReadIntPtr(buffer, WqsOffset.lpcsaBuffer_48);
//remote socket address
IntPtr sockaddrptr = Marshal32.ReadIntPtr(bufferptr, CsaddrInfoOffsets.OffsetRemoteAddr_lpSockaddr_8);
//remote socket len
int sockaddrlen = Marshal.ReadInt32(bufferptr, CsaddrInfoOffsets.OffsetRemoteAddr_iSockaddrLength_12);
SocketAddress btsa = new SocketAddress(AddressFamily32.Bluetooth, sockaddrlen);
for (int sockbyte = 0; sockbyte < sockaddrlen; sockbyte++)
{
btsa[sockbyte] = Marshal.ReadByte(sockaddrptr, sockbyte);
}
var bep = (BluetoothEndPoint)prototype.Create(btsa);
//new deviceinfo
IBluetoothDeviceInfo newdevice;
#if NETCF
newdevice = new WindowsBluetoothDeviceInfo(bep.Address, bir.cod);
// Built-in to Win32 so only do on NETCF
newdevice.SetDiscoveryTime(discoTime);
#else
newdevice = new WindowsBluetoothDeviceInfo(bep.Address);
#if WIN32_READ_BTH_DEVICE_INFO
ReadBlobBTH_DEVICE_INFO(buffer, newdevice);
#endif
#endif
//add to discovered list
al.Add(newdevice);
if (liveDiscoHandler != null)
{
liveDiscoHandler(newdevice, liveDiscoState);
}
}
}
}//while
#if NETCF
}
#endif
//stop looking
if (handle != IntPtr.Zero)
{
markTime("End");
lookupresult = NativeMethods.WSALookupServiceEnd(handle);
markTime("End Complete");
}
if (timings != null)
{
Debug.WriteLine(timings);
#if !NETCF
Console.WriteLine(timings);
#endif
}
#if NETCF
List_IBluetoothDeviceInfo known = WinCEReadKnownDevicesFromRegistry();
al = BluetoothClient.DiscoverDevicesMerge(authenticated, remembered, unknown,
known, al, discoverableOnly, discoTime);
#endif
//return results
if (al.Count == 0)
{
//special case for empty collection
return(new IBluetoothDeviceInfo[0] {
});
}
return((IBluetoothDeviceInfo[])al.ToArray(
#if V1
typeof(IBluetoothDeviceInfo)
#endif
));
}
