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1 // Copyright 2015 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 "components/user_prefs/tracked/device_id.h" | |
6 | |
7 #include <IOKit/IOKitLib.h> | |
8 | |
9 #include "base/mac/foundation_util.h" | |
10 #include "base/mac/scoped_cftyperef.h" | |
11 #include "base/mac/scoped_ioobject.h" | |
12 #include "base/strings/sys_string_conversions.h" | |
13 | |
14 MachineIdStatus GetDeterministicMachineSpecificId(std::string* machine_id) { | |
15 base::mac::ScopedIOObject<io_service_t> platform_expert( | |
16 IOServiceGetMatchingService(kIOMasterPortDefault, | |
17 IOServiceMatching("IOPlatformExpertDevice"))); | |
18 if (!platform_expert.get()) | |
19 return MachineIdStatus::FAILURE; | |
20 | |
21 base::ScopedCFTypeRef<CFTypeRef> uuid(IORegistryEntryCreateCFProperty( | |
22 platform_expert, CFSTR(kIOPlatformUUIDKey), kCFAllocatorDefault, 0)); | |
23 if (!uuid.get()) | |
24 return MachineIdStatus::FAILURE; | |
25 | |
26 CFStringRef uuid_string = base::mac::CFCast<CFStringRef>(uuid); | |
27 if (!uuid_string) | |
28 return MachineIdStatus::FAILURE; | |
29 | |
30 *machine_id = base::SysCFStringRefToUTF8(uuid_string); | |
31 return MachineIdStatus::SUCCESS; | |
32 } | |
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