private static string ParseServiceName(ref Structs.BtSdkRemoteServiceAttrStru attrs)
{
string nameUtf8 = BluesoleilUtils.FixedLengthArrayToStringUtf8(attrs.svc_name);
string nameUL = Encoding.Unicode.GetString(attrs.svc_name);
nameUL = nameUL.Trim('\0');
#if DEBUG
string nameUB = Encoding.BigEndianUnicode.GetString(attrs.svc_name);
nameUB = nameUB.Trim('\0');
Debug.Assert(nameUL.Length == nameUB.Length,
"Our simple check of length doesn't work for Unicode little-endian vs big-endian, the lengths are the same."
+ " BUT different here!! nameUL.Length: " + nameUL.Length + ", nameUB.Length: " + nameUB.Length);
#endif
//
string name = nameUtf8;
if (nameUL.Length > name.Length)
{
name = nameUL;
}
// As described in DEBUG above, can't do this!! if (nameUB.Length > name.Length) name = nameUB;
return(name);
}
public ServiceRecord[] GetServiceRecords(Guid service)
{
BtSdkError ret;
var search = new Structs.BtSdkSDPSearchPatternStru[1];
search[0] = new Structs.BtSdkSDPSearchPatternStru(service);
UInt32[] recordHandles = new uint[MaxServiceRecordsLookup];
int num = recordHandles.Length;
// Fetch the matching records (the handles of).
int numSearch = search.Length;
ret = _factory.Api.Btsdk_BrowseRemoteServicesEx(_hDev, search, numSearch, recordHandles, ref num);
if (ret == BtSdkError.NO_SERVICE) // None
{
return(new ServiceRecord[0]);
}
BluesoleilUtils.CheckAndThrow(ret, "Btsdk_BrowseRemoteServicesEx");
// Fetch the records' attributes and convert to our format.
var results = new List <ServiceRecord>();
for (int i = 0; i < num; ++i)
{
var hRcd = recordHandles[i];
var attrs = new Structs.BtSdkRemoteServiceAttrStru(
StackConsts.AttributeLookup.ServiceName | StackConsts.AttributeLookup.ExtAttributes);
// Use 'Get' here and not 'Refresh' as the 'Browse' call above
// should have retrieved the attributes.
ret = _factory.Api.Btsdk_GetRemoteServiceAttributes(hRcd, ref attrs);
BluesoleilUtils.CheckAndThrow(ret, "Btsdk_RefreshRemoteServiceAttributes");
Debug.Assert(attrs.dev_hdl == _hDev);
//
IBluesoleilApi hackApi = _factory.Api;
ServiceRecord sr = CreateServiceRecord(ref attrs, hackApi);
results.Add(sr);
}
return(results.ToArray());
}
internal static extern BtSdkError Btsdk_GetRemoteServiceAttributes(BTSVCHDL svc_hdl, ref Structs.BtSdkRemoteServiceAttrStru attribute);
internal static ServiceRecord CreateServiceRecord(ref Structs.BtSdkRemoteServiceAttrStru attrs, IBluesoleilApi api)
{
ServiceRecordBuilder bldr = new ServiceRecordBuilder();
//--
Guid sc = BluetoothService.CreateBluetoothUuid(attrs.svc_class);
bldr.AddServiceClass(sc);
//--
string name = ParseServiceName(ref attrs);
if (name.Length != 0)
{
bldr.ServiceName = name;
}
//
byte?port = null;
var extras = new List <ServiceAttribute>();
Debug.Assert(attrs.status == 0, "attrs.status: 0x" + attrs.status.ToString("X"));
if (attrs.ext_attributes != IntPtr.Zero)
{
if (sc == BluetoothService.HumanInterfaceDevice)
{
var hidInfo = (Structs.BtSdkRmtHidSvcExtAttrStru_HACK)Marshal.PtrToStructure(
attrs.ext_attributes, typeof(Structs.BtSdkRmtHidSvcExtAttrStru_HACK));
Debug.Assert(Marshal.SizeOf(typeof(Structs.BtSdkRmtHidSvcExtAttrStru_HACK))
== Marshal.SizeOf(hidInfo), "SizeOf x2");
Debug.Assert(hidInfo.size == Marshal.SizeOf(typeof(Structs.BtSdkRmtHidSvcExtAttrStru_HACK))
+ Structs.BtSdkRmtHidSvcExtAttrStru_HACK.StackMiscountsPaddingSize,
"Different sizes! hidInfo.size: " + hidInfo.size + ", SizeOf(): " + Marshal.SizeOf(typeof(Structs.BtSdkRmtHidSvcExtAttrStru_HACK)));
// TO-DO Human Interface (HID) record: Use "mask" field, it's undocumented, check for real life values
// With test SdpCreateAHumanInputDeviceRecordsAllTwoOfThree
// which adds two out of three of {DeviceReleaseNumber,DeviceSubclass,CountryCode}
// mask==0. So mask apparently applies to other fields!
// So we check these three values for zero
// and discard them if so!
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture,
"HID.mask: {0:X}", hidInfo.mask));
var list = new List <ServiceAttribute>();
if (hidInfo.deviceReleaseNumber != 0)
{
list.Add(
new ServiceAttribute(HidProfileAttributeId.DeviceReleaseNumber,
new ServiceElement(ElementType.UInt16, hidInfo.deviceReleaseNumber)));
}
if (hidInfo.deviceSubclass != 0)
{
list.Add(
new ServiceAttribute(HidProfileAttributeId.DeviceSubclass,
new ServiceElement(ElementType.UInt8, hidInfo.deviceSubclass)));
}
if (hidInfo.countryCode != 0)
{
list.Add(
new ServiceAttribute(HidProfileAttributeId.CountryCode,
new ServiceElement(ElementType.UInt8, hidInfo.countryCode)));
}
// TO-DO HID other...
extras.AddRange(list);
}
else if (sc == BluetoothService.PnPInformation)
{
var deviceInfo = (Structs.BtSdkRmtDISvcExtAttrStru)Marshal.PtrToStructure(
attrs.ext_attributes, typeof(Structs.BtSdkRmtDISvcExtAttrStru));
Debug.Assert(Marshal.SizeOf(typeof(Structs.BtSdkRmtDISvcExtAttrStru))
== Marshal.SizeOf(deviceInfo), "SizeOf x2");
Debug.Assert(deviceInfo.size == Marshal.SizeOf(typeof(Structs.BtSdkRmtDISvcExtAttrStru))
+ Structs.BtSdkRmtDISvcExtAttrStru.StackMiscountsPaddingSize,
"Different sizes! deviceInfo.size: " + deviceInfo.size + ", Marshal.SizeOf: " + Marshal.SizeOf(typeof(Structs.BtSdkRmtDISvcExtAttrStru)));
// TO-DO Device Info (PnP) record: Use "mask" field, it's undocumented, check for real life values
//Debug.Assert(deviceInfo.mask == 0, "Is mask field in BtSdkRmtDISvcExtAttrStru ever set!!!, is here:" + deviceInfo.mask);
Debug.WriteLine(string.Format(CultureInfo.InvariantCulture,
"PnP/DI.mask: {0:X}", deviceInfo.mask));
// Like above (PnP) we see mask==0 for the fields we handle
// here (six of). So we check these values
// for zero and discard them if so!
var list = new List <ServiceAttribute>();
if (deviceInfo.spec_id != 0)
{
list.Add(
new ServiceAttribute(DeviceIdProfileAttributeId.SpecificationId,
new ServiceElement(ElementType.UInt16, deviceInfo.spec_id)));
}
if (deviceInfo.vendor_id != 0)
{
list.Add(
new ServiceAttribute(DeviceIdProfileAttributeId.VendorId,
new ServiceElement(ElementType.UInt16, deviceInfo.vendor_id)));
}
if (deviceInfo.product_id != 0)
{
list.Add(
new ServiceAttribute(DeviceIdProfileAttributeId.ProductId,
new ServiceElement(ElementType.UInt16, deviceInfo.product_id)));
}
if (deviceInfo.version != 0)
{
list.Add(
new ServiceAttribute(DeviceIdProfileAttributeId.Version,
new ServiceElement(ElementType.UInt16, deviceInfo.version)));
}
if (true /* Zero means False here!! */)
{
list.Add(
new ServiceAttribute(DeviceIdProfileAttributeId.PrimaryRecord,
new ServiceElement(ElementType.Boolean, deviceInfo.primary_record)));
}
if (deviceInfo.vendor_id_source != 0)
{
list.Add(
new ServiceAttribute(DeviceIdProfileAttributeId.VendorIdSource,
new ServiceElement(ElementType.UInt16, deviceInfo.vendor_id_source)));
}
// TO-DO URLs...
extras.AddRange(list);
}
else
{
// On testing we see this never working! For one device
// with an ImagingResponder record the size of 0x18 and
// not 0x8 as per definition, and the port value is wrong.
// And for its PhonebookAccessPse record the size is
// correctly 0x8, but again the port value is wrong!
//
var sppInfo = (Structs.BtSdkRmtSPPSvcExtAttrStru)Marshal.PtrToStructure(
attrs.ext_attributes, typeof(Structs.BtSdkRmtSPPSvcExtAttrStru));
Debug.Assert(sppInfo.size == Marshal.SizeOf(typeof(Structs.BtSdkRmtSPPSvcExtAttrStru)),
"Different sizes!");
port = sppInfo.server_channel;
}
api.Btsdk_FreeMemory(attrs.ext_attributes);
}//if (attrs.ext_attributes != NULL)
// Use a different API to try and get the RFCOMM port number as
// the previous API is quite rubbish at doing that!!
var svcB = new Structs.BtSdkAppExtSPPAttrStru(sc);
var retSpp = api.Btsdk_SearchAppExtSPPService(attrs.dev_hdl, ref svcB);
if (retSpp == BtSdkError.NO_SERVICE) // error
{
}
else if (retSpp != BtSdkError.OK) // error
{
Debug.WriteLine("GetSvcRcds Btsdk_SearchAppExtSPPService ret: "
+ BluesoleilUtils.BtSdkErrorToString(retSpp));
}
else // success
{
if (svcB.rf_svr_chnl != 0)
{
byte newPort = svcB.rf_svr_chnl;
if (port.HasValue)
{
Debug.Assert(port.Value == newPort, "port: " + port.Value + ", newPort: " + newPort);
}
else
{
port = newPort;
}
}
if (svcB.sdp_record_handle != 0)
{
bldr.AddCustomAttribute(new ServiceAttribute(
UniversalAttributeId.ServiceRecordHandle,
ServiceElement.CreateNumericalServiceElement(ElementType.UInt32, svcB.sdp_record_handle)));
}
#if DEBUG
Debug.Assert(svcB.service_class_128 == sc, "svcSpp.service_class_128: " + svcB.service_class_128 + ", sc: " + sc);
var snSpp = BluesoleilUtils.FromNameString(svcB.svc_name, StackConsts.BTSDK_SERVICENAME_MAXLENGTH);
if (snSpp == null)
{
Debug.Assert(name == null || name.Length == 0, "svcSpp.svc_name: null" + ", name: " + name);
}
else if (snSpp.Length == 1)
{
// SearchAppExtSPPService doesn't handle Unicode
// but Btsdk_BrowseRemoteServicesEx etc does.
Debug.Assert(snSpp[0] == name[0], "svcSpp.svc_name: " + snSpp + ", name: " + name);
}
else
{
Debug.Assert(snSpp == name, "svcSpp.svc_name: " + snSpp + ", bldr.ServiceName: " + name);
}
#endif
}
//
if (port.HasValue)
{
}
else
{
bldr.ProtocolType = BluetoothProtocolDescriptorType.None;
}
if (extras.Count != 0)
{
bldr.AddCustomAttributes(extras);
}
//
const ServiceAttributeId FakeDescr = (ServiceAttributeId)(-1);
bldr.AddCustomAttribute(new ServiceAttribute(FakeDescr,
new ServiceElement(ElementType.TextString,
"<partial BlueSoleil decode>")));
ServiceRecord sr = bldr.ServiceRecord;
if (port.HasValue)
{
Debug.Assert(bldr.ProtocolType == BluetoothProtocolDescriptorType.Rfcomm,
"type=" + bldr.ProtocolType);
ServiceRecordHelper.SetRfcommChannelNumber(sr, port.Value);
}
else
{
bldr.ProtocolType = BluetoothProtocolDescriptorType.None;
}
return(sr);
}
BtSdkError IBluesoleilApi.Btsdk_GetRemoteServiceAttributes(BTSVCHDL svc_hdl, ref Structs.BtSdkRemoteServiceAttrStru attribute)
{
return(NativeMethods.Btsdk_GetRemoteServiceAttributes(svc_hdl, ref attribute));
}
