//----
internal List <ServiceRecord> DoSdpQueryWithConnect(
BluetoothAddress addr, Guid svcClass, bool rfcommOnly)
{
var svcUuid = new Structs.uuid_t(svcClass);
//:TestUuids();
// Connect
byte[] target = BluezUtils.FromBluetoothAddress(addr);
Console.WriteLine("Gonna sdp_connect (SafeHandle)...");
NativeMethods.SdpSessionSafeHandle session = NativeMethods.sdp_connect(StackConsts.BDADDR_ANY,
target, StackConsts.SdpConnectFlags.SDP_RETRY_IF_BUSY);
if (session.IsInvalid)
{
//BluezUtils.Throw((BluezError)(-1), "sdp_connect");
const int WSASERVICE_NOT_FOUND = 10108;
throw new SocketException(WSASERVICE_NOT_FOUND);
}
try {
// Query
return(DoSdpQuery(session, svcUuid, rfcommOnly));
} finally {
session.Close();
}
}
internal static void Test()
{
if (!_TestUuidsOnce)
{
_TestUuidsOnce = true;
var u16 = new Structs.uuid_t((UInt16)0x0100);
DumpUuidt(u16);
var u32 = new Structs.uuid_t((UInt32)0x00000100);
DumpUuidt(u32);
var u128 = new Structs.uuid_t(BluetoothService.L2CapProtocol);
DumpUuidt(u128);
}
}
internal static void DumpUuidt(Structs.uuid_t uuid)
{
var sizeOf = Marshal.SizeOf(uuid);
var p = Marshal.AllocHGlobal(sizeOf);
Marshal.StructureToPtr(uuid, p, false);
try {
var arr = new byte[sizeOf];
Marshal.Copy(p, arr, 0, arr.Length);
Console.WriteLine("uuid_t: {0} (len: {1})",
BitConverter.ToString(arr), sizeOf);
} finally {
Marshal.FreeHGlobal(p);
}
}
List <ServiceRecord> DoSdpQuery(NativeMethods.SdpSessionSafeHandle session,
Structs.uuid_t svcUuid, bool rfcommOnly)
{
var listAllocs = new List <IntPtr>();
IntPtr searchList = BluezUtils.sdp_list_append(IntPtr.Zero, svcUuid, listAllocs);
// Attribute pattern
IntPtr attridList;
StackConsts.sdp_attrreq_type_t reqType;
Console.WriteLine("rfcommOnly: " + rfcommOnly);
if (rfcommOnly)
{
const UInt16 ClassListId = (ushort)UniversalAttributeId.ServiceClassIdList; //=1
const UInt16 ProtoDListId = (ushort)UniversalAttributeId.ProtocolDescriptorList; //=4
reqType = StackConsts.sdp_attrreq_type_t.SDP_ATTR_REQ_INDIVIDUAL;
attridList = BluezUtils.sdp_list_append(IntPtr.Zero, ClassListId, listAllocs);
attridList = BluezUtils.sdp_list_append(attridList, ProtoDListId, listAllocs);
}
else
{
const UInt32 allAttributes = 0x0000ffff;
reqType = StackConsts.sdp_attrreq_type_t.SDP_ATTR_REQ_RANGE;
attridList = BluezUtils.sdp_list_append(IntPtr.Zero, allAttributes, listAllocs);
}
// Query
Console.WriteLine("sdp_service_search_attr_req in:"
+ " {0}, attrid_list: {1}",
searchList, attridList);
IntPtr pResponseList;
BluezError ret = NativeMethods.sdp_service_search_attr_req(session,
searchList,
reqType, attridList,
out pResponseList);
Console.WriteLine("sdp_service_search_attr_req ret: {0}, result: {1}",
ret, pResponseList);
BluezUtils.CheckAndThrow(ret, "sdp_service_search_attr_req");
//
var rList = BuildRecordList(pResponseList);
return(rList);
}