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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "device/bluetooth/bluetooth_utils.h" | 5 #include "device/bluetooth/bluetooth_uuid.h" |
6 | |
7 #include <vector> | |
8 | 6 |
9 #include "base/basictypes.h" | 7 #include "base/basictypes.h" |
10 #include "base/logging.h" | 8 #include "base/logging.h" |
11 #include "base/strings/string_util.h" | 9 #include "base/strings/string_util.h" |
12 | 10 |
13 namespace device { | 11 namespace device { |
14 namespace bluetooth_utils { | |
15 | 12 |
16 namespace { | 13 namespace { |
17 | 14 |
18 const char* kCommonUuidPostfix = "-0000-1000-8000-00805f9b34fb"; | 15 const char* kCommonUuidPostfix = "-0000-1000-8000-00805f9b34fb"; |
19 const char* kCommonUuidPrefix = "0000"; | 16 const char* kCommonUuidPrefix = "0000"; |
20 const int kUuidSize = 36; | 17 const int kUuidSize = 36; |
21 | 18 |
22 // Returns the canonical, 128-bit canonical, and the format of the UUID | 19 // Returns the canonical, 128-bit canonical, and the format of the UUID |
23 // in |canonical|, |canonical_128|, and |format| based on |uuid|. | 20 // in |canonical|, |canonical_128|, and |format| based on |uuid|. |
24 void GetCanonicalUuid(std::string uuid, | 21 void GetCanonicalUuid(std::string uuid, |
25 std::string* canonical, | 22 std::string* canonical, |
26 std::string* canonical_128, | 23 std::string* canonical_128, |
27 UUID::Format* format) { | 24 BluetoothUUID::Format* format) { |
28 // Initialize the values for the failure case. | 25 // Initialize the values for the failure case. |
29 canonical->clear(); | 26 canonical->clear(); |
30 canonical_128->clear(); | 27 canonical_128->clear(); |
31 *format = UUID::kFormatInvalid; | 28 *format = BluetoothUUID::kFormatInvalid; |
32 | 29 |
33 if (uuid.empty()) | 30 if (uuid.empty()) |
34 return; | 31 return; |
35 | 32 |
36 if (uuid.size() < 11 && uuid.find("0x") == 0) | 33 if (uuid.size() < 11 && uuid.find("0x") == 0) |
37 uuid = uuid.substr(2); | 34 uuid = uuid.substr(2); |
38 | 35 |
39 if (!(uuid.size() == 4 || uuid.size() == 8 || uuid.size() == 36)) | 36 if (!(uuid.size() == 4 || uuid.size() == 8 || uuid.size() == 36)) |
40 return; | 37 return; |
41 | 38 |
42 if (uuid.size() == 4 || uuid.size() == 8) { | 39 if (uuid.size() == 4 || uuid.size() == 8) { |
43 for (size_t i = 0; i < uuid.size(); ++i) { | 40 for (size_t i = 0; i < uuid.size(); ++i) { |
44 if (!IsHexDigit(uuid[i])) | 41 if (!IsHexDigit(uuid[i])) |
45 return; | 42 return; |
46 } | 43 } |
47 if (uuid.size() == 4) { | 44 if (uuid.size() == 4) { |
48 canonical->assign(uuid); | 45 canonical->assign(uuid); |
49 canonical_128->assign(kCommonUuidPrefix + uuid + kCommonUuidPostfix); | 46 canonical_128->assign(kCommonUuidPrefix + uuid + kCommonUuidPostfix); |
50 *format = UUID::kFormat16Bit; | 47 *format = BluetoothUUID::kFormat16Bit; |
51 return; | 48 return; |
52 } | 49 } |
53 canonical->assign(uuid); | 50 canonical->assign(uuid); |
54 canonical_128->assign(uuid + kCommonUuidPostfix); | 51 canonical_128->assign(uuid + kCommonUuidPostfix); |
55 *format = UUID::kFormat32Bit; | 52 *format = BluetoothUUID::kFormat32Bit; |
56 return; | 53 return; |
57 } | 54 } |
58 | 55 |
59 for (int i = 0; i < kUuidSize; ++i) { | 56 for (int i = 0; i < kUuidSize; ++i) { |
60 if (i == 8 || i == 13 || i == 18 || i == 23) { | 57 if (i == 8 || i == 13 || i == 18 || i == 23) { |
61 if (uuid[i] != '-') | 58 if (uuid[i] != '-') |
62 return; | 59 return; |
63 } else { | 60 } else { |
64 if (!IsHexDigit(uuid[i])) | 61 if (!IsHexDigit(uuid[i])) |
65 return; | 62 return; |
66 uuid[i] = tolower(uuid[i]); | 63 uuid[i] = tolower(uuid[i]); |
67 } | 64 } |
68 } | 65 } |
69 | 66 |
70 canonical->assign(uuid); | 67 canonical->assign(uuid); |
71 canonical_128->assign(uuid); | 68 canonical_128->assign(uuid); |
72 *format = UUID::kFormat128Bit; | 69 *format = BluetoothUUID::kFormat128Bit; |
73 } | 70 } |
74 | 71 |
75 } // namespace | 72 } // namespace |
76 | 73 |
77 | 74 |
78 UUID::UUID(const std::string& uuid) { | 75 BluetoothUUID::BluetoothUUID(const std::string& uuid) { |
79 GetCanonicalUuid(uuid, &value_, &canonical_value_, &format_); | 76 GetCanonicalUuid(uuid, &value_, &canonical_value_, &format_); |
80 } | 77 } |
81 | 78 |
82 UUID::~UUID() { | 79 BluetoothUUID::BluetoothUUID() : format_(kFormatInvalid) { |
83 } | 80 } |
84 | 81 |
85 bool UUID::IsValid() const { | 82 BluetoothUUID::~BluetoothUUID() { |
| 83 } |
| 84 |
| 85 bool BluetoothUUID::IsValid() const { |
86 return format_ != kFormatInvalid; | 86 return format_ != kFormatInvalid; |
87 } | 87 } |
88 | 88 |
89 bool UUID::operator<(const UUID& uuid) const { | 89 bool BluetoothUUID::operator<(const BluetoothUUID& uuid) const { |
90 return canonical_value_ < uuid.canonical_value_; | 90 return canonical_value_ < uuid.canonical_value_; |
91 } | 91 } |
92 | 92 |
93 bool UUID::operator==(const UUID& uuid) const { | 93 bool BluetoothUUID::operator==(const BluetoothUUID& uuid) const { |
94 return canonical_value_ == uuid.canonical_value_; | 94 return canonical_value_ == uuid.canonical_value_; |
95 } | 95 } |
96 | 96 |
97 bool UUID::operator!=(const UUID& uuid) const { | 97 bool BluetoothUUID::operator!=(const BluetoothUUID& uuid) const { |
98 return canonical_value_ != uuid.canonical_value_; | 98 return canonical_value_ != uuid.canonical_value_; |
99 } | 99 } |
100 | 100 |
101 std::string CanonicalUuid(std::string uuid) { | |
102 std::string value; | |
103 std::string canonical_value; | |
104 UUID::Format format; | |
105 GetCanonicalUuid(uuid, &value, &canonical_value, &format); | |
106 return canonical_value; | |
107 } | |
108 | |
109 } // namespace bluetooth_utils | |
110 } // namespace device | 101 } // namespace device |
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