src/device/bluetooth/bluetooth_service_record_mac.mm

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "device/bluetooth/bluetooth_service_record_mac.h"
   6
   7 #include <IOBluetooth/Bluetooth.h>
   8 #import <IOBluetooth/IOBluetoothUtilities.h>
   9 #import <IOBluetooth/objc/IOBluetoothDevice.h>
  10 #import <IOBluetooth/objc/IOBluetoothSDPDataElement.h>
  11 #import <IOBluetooth/objc/IOBluetoothSDPServiceRecord.h>
  12 #import <IOBluetooth/objc/IOBluetoothSDPUUID.h>
  13
  14 #include <string>
  15
  16 #include "base/basictypes.h"
  17 #include "base/strings/stringprintf.h"
  18 #include "base/strings/sys_string_conversions.h"
  19
  20 namespace {
  21
  22 void ExtractUuid(IOBluetoothSDPDataElement* service_class_data,
  23                  std::string* uuid) {
  24   NSArray* inner_elements = [service_class_data getArrayValue];
  25   IOBluetoothSDPUUID* sdp_uuid = nil;
  26   for (IOBluetoothSDPDataElement* inner_element in inner_elements) {
  27     if ([inner_element getTypeDescriptor] == kBluetoothSDPDataElementTypeUUID) {
  28       sdp_uuid = [[inner_element getUUIDValue] getUUIDWithLength:16];
  29       break;
  30     }
  31   }
  32   if (sdp_uuid != nil) {
  33     const uint8* uuid_bytes = reinterpret_cast<const uint8*>([sdp_uuid bytes]);
  34     *uuid = base::StringPrintf(
  35         "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
  36         uuid_bytes[0], uuid_bytes[1], uuid_bytes[2], uuid_bytes[3],
  37         uuid_bytes[4], uuid_bytes[5], uuid_bytes[6], uuid_bytes[7],
  38         uuid_bytes[8], uuid_bytes[9], uuid_bytes[10], uuid_bytes[11],
  39         uuid_bytes[12], uuid_bytes[13], uuid_bytes[14], uuid_bytes[15]);
  40   }
  41 }
  42
  43 }  // namespace
  44
  45 namespace device {
  46
  47 BluetoothServiceRecordMac::BluetoothServiceRecordMac(
  48     IOBluetoothSDPServiceRecord* record)
  49     : BluetoothServiceRecord() {
  50   name_ = base::SysNSStringToUTF8([record getServiceName]);
  51   device_ = [[record device] retain];
  52   address_ = base::SysNSStringToUTF8(IOBluetoothNSStringFromDeviceAddress(
  53       [device_ getAddress]));
  54
  55   // TODO(youngki): Extract these values from |record|.
  56   supports_hid_ = false;
  57   hid_reconnect_initiate_ = false;
  58   hid_normally_connectable_ = false;
  59
  60   supports_rfcomm_ =
  61       [record getRFCOMMChannelID:&rfcomm_channel_] == kIOReturnSuccess;
  62
  63   const BluetoothSDPServiceAttributeID service_class_id = 1;
  64
  65   IOBluetoothSDPDataElement* service_class_data =
  66       [record getAttributeDataElement:service_class_id];
  67   if ([service_class_data getTypeDescriptor] ==
  68           kBluetoothSDPDataElementTypeDataElementSequence) {
  69     std::string uuid_str;
  70     ExtractUuid(service_class_data, &uuid_str);
  71     uuid_ = BluetoothUUID(uuid_str);
  72   }
  73 }
  74
  75 BluetoothServiceRecordMac::~BluetoothServiceRecordMac() {
  76   [device_ release];
  77 }
  78
  79 }  // namespace device