1 //
2 // Copyright 2016 The Android Open Source Project
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 // http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16
17 #include <cutils/properties.h>
18 #include <fcntl.h>
19 #include <gtest/gtest.h>
20
21 #include <string>
22 #include <vector>
23 using std::vector;
24
25 #include "bluetooth_address.h"
26
27 namespace android {
28 namespace hardware {
29 namespace bluetooth {
30 namespace V1_0 {
31 namespace implementation {
32
33 constexpr char kTestAddr1[BluetoothAddress::kStringLength + 1] =
34 "12:34:56:78:9a:bc";
35 constexpr uint8_t kTestAddr1_bytes[BluetoothAddress::kBytes] = {
36 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc};
37 constexpr char kZeros[BluetoothAddress::kStringLength + 1] =
38 "00:00:00:00:00:00";
39 constexpr uint8_t kZeros_bytes[BluetoothAddress::kBytes] = {0x00, 0x00, 0x00,
40 0x00, 0x00, 0x00};
41 constexpr char kTestAddrBad1[BluetoothAddress::kStringLength + 1] =
42 "bb:aa:dd:00:00:01";
43 constexpr uint8_t kTestAddrBad1_bytes[BluetoothAddress::kBytes] = {
44 0xbb, 0xaa, 0xdd, 0x00, 0x00, 0x01};
45
46 constexpr char kAddrPath[] = "/tmp/my_address_in_a_file.txt";
47
48 class BluetoothAddressTest : public ::testing::Test {
49 public:
BluetoothAddressTest()50 BluetoothAddressTest() {}
~BluetoothAddressTest()51 ~BluetoothAddressTest() {}
52
53 void FileWriteString(const char* path, const char* string);
54 };
55
FileWriteString(const char * path,const char * string)56 void BluetoothAddressTest::FileWriteString(const char* path,
57 const char* string) {
58 int fd = open(path, O_CREAT | O_RDWR);
59 EXPECT_TRUE(fd > 0) << "err = " << strerror(errno);
60
61 size_t length = strlen(string);
62 size_t bytes_written = write(fd, string, length);
63
64 EXPECT_EQ(length, bytes_written) << strerror(errno);
65
66 close(fd);
67 }
68
TEST_F(BluetoothAddressTest,string_to_bytes)69 TEST_F(BluetoothAddressTest, string_to_bytes) {
70 uint8_t addr[BluetoothAddress::kBytes];
71
72 // Malformed addresses
73 EXPECT_FALSE(BluetoothAddress::string_to_bytes("", addr));
74 EXPECT_FALSE(BluetoothAddress::string_to_bytes("000000000000", addr));
75 EXPECT_FALSE(BluetoothAddress::string_to_bytes("00:00:00:00:0000", addr));
76 EXPECT_FALSE(BluetoothAddress::string_to_bytes("00:00:00:00:00:0", addr));
77 EXPECT_FALSE(BluetoothAddress::string_to_bytes("00:00:00:00:00:0;", addr));
78 EXPECT_FALSE(BluetoothAddress::string_to_bytes("aB:cD:eF:Gh:iJ:Kl", addr));
79 EXPECT_FALSE(BluetoothAddress::string_to_bytes("00:00:000:00:00:0;", addr));
80 EXPECT_FALSE(BluetoothAddress::string_to_bytes("12:34:56:78:90:12;", addr));
81 EXPECT_FALSE(BluetoothAddress::string_to_bytes("12:34:56:78:90:123", addr));
82
83 // Reasonable addresses
84 EXPECT_TRUE(BluetoothAddress::string_to_bytes("00:00:00:00:00:00", addr));
85 EXPECT_TRUE(BluetoothAddress::string_to_bytes("a5:a5:a5:a5:a5:a5", addr));
86 EXPECT_TRUE(BluetoothAddress::string_to_bytes("5A:5A:5A:5A:5A:5A", addr));
87 EXPECT_TRUE(BluetoothAddress::string_to_bytes("AA:BB:CC:DD:EE:FF", addr));
88 EXPECT_TRUE(BluetoothAddress::string_to_bytes("aa:bb:cc:dd:ee:ff", addr));
89
90 // Compare the output to known bytes
91 uint8_t addrA[BluetoothAddress::kBytes];
92 uint8_t addrB[BluetoothAddress::kBytes];
93
94 // kTestAddr1
95 EXPECT_TRUE(BluetoothAddress::string_to_bytes(kTestAddr1, addrA));
96 EXPECT_TRUE(memcmp(addrA, kTestAddr1_bytes, BluetoothAddress::kBytes) == 0);
97
98 // kZeros
99 EXPECT_TRUE(BluetoothAddress::string_to_bytes(kZeros, addrB));
100 EXPECT_TRUE(memcmp(addrB, kZeros_bytes, BluetoothAddress::kBytes) == 0);
101
102 // kTestAddr1 != kZeros
103 EXPECT_FALSE(memcmp(addrA, addrB, BluetoothAddress::kBytes) == 0);
104 }
105
TEST_F(BluetoothAddressTest,bytes_to_string)106 TEST_F(BluetoothAddressTest, bytes_to_string) {
107 char addrA[BluetoothAddress::kStringLength + 1] = "";
108 char addrB[BluetoothAddress::kStringLength + 1] = "";
109
110 // kTestAddr1
111 BluetoothAddress::bytes_to_string(kTestAddr1_bytes, addrA);
112 EXPECT_TRUE(memcmp(addrA, kTestAddr1, BluetoothAddress::kStringLength) == 0);
113
114 // kZeros
115 BluetoothAddress::bytes_to_string(kZeros_bytes, addrB);
116 EXPECT_TRUE(memcmp(addrB, kZeros, BluetoothAddress::kStringLength) == 0);
117
118 // kTestAddr1 != kZeros
119 EXPECT_FALSE(memcmp(addrA, addrB, BluetoothAddress::kStringLength) == 0);
120 }
121
TEST_F(BluetoothAddressTest,property_set)122 TEST_F(BluetoothAddressTest, property_set) {
123 // Set the properties to empty strings.
124 property_set(PERSIST_BDADDR_PROPERTY, "");
125 property_set(PROPERTY_BT_BDADDR_PATH, "");
126 property_set(FACTORY_BDADDR_PROPERTY, "");
127
128 // Get returns 0.
129 char prop[PROP_VALUE_MAX] = "";
130 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) == 0);
131 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) == 0);
132 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) == 0);
133
134 // Set the properties to known strings.
135 property_set(PERSIST_BDADDR_PROPERTY, "1");
136 property_set(PROPERTY_BT_BDADDR_PATH, "22");
137 property_set(FACTORY_BDADDR_PROPERTY, "333");
138
139 // Get returns the correct length.
140 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) == 1);
141 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) == 2);
142 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) == 3);
143
144 // Set the properties to empty strings again.
145 property_set(PERSIST_BDADDR_PROPERTY, "");
146 property_set(PROPERTY_BT_BDADDR_PATH, "");
147 property_set(FACTORY_BDADDR_PROPERTY, "");
148
149 // Get returns 0.
150 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) == 0);
151 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) == 0);
152 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) == 0);
153 }
154
TEST_F(BluetoothAddressTest,property_get)155 TEST_F(BluetoothAddressTest, property_get) {
156 // Set the properties to known strings.
157 property_set(PERSIST_BDADDR_PROPERTY, PERSIST_BDADDR_PROPERTY);
158 property_set(PROPERTY_BT_BDADDR_PATH, PROPERTY_BT_BDADDR_PATH);
159 property_set(FACTORY_BDADDR_PROPERTY, FACTORY_BDADDR_PROPERTY);
160
161 // Get returns the same strings.
162 char prop[PROP_VALUE_MAX] = "";
163 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) > 0);
164 EXPECT_TRUE(strcmp(PERSIST_BDADDR_PROPERTY, prop) == 0);
165
166 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) > 0);
167 EXPECT_TRUE(strcmp(PROPERTY_BT_BDADDR_PATH, prop) == 0);
168
169 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) > 0);
170 EXPECT_TRUE(strcmp(FACTORY_BDADDR_PROPERTY, prop) == 0);
171
172 // Set a property to a different known string.
173 char prop2[PROP_VALUE_MAX] = "Erased";
174 property_set(PERSIST_BDADDR_PROPERTY, prop2);
175
176 // Get returns the correct strings.
177 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) > 0);
178 EXPECT_TRUE(strcmp(prop2, prop) == 0);
179
180 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) > 0);
181 EXPECT_TRUE(strcmp(PROPERTY_BT_BDADDR_PATH, prop) == 0);
182
183 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) > 0);
184 EXPECT_TRUE(strcmp(FACTORY_BDADDR_PROPERTY, prop) == 0);
185
186 // Set another property to prop2.
187 property_set(PROPERTY_BT_BDADDR_PATH, prop2);
188
189 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) > 0);
190 EXPECT_TRUE(strcmp(prop2, prop) == 0);
191
192 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) > 0);
193 EXPECT_TRUE(strcmp(prop2, prop) == 0);
194
195 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) > 0);
196 EXPECT_TRUE(strcmp(FACTORY_BDADDR_PROPERTY, prop) == 0);
197
198 // Set the third property to prop2.
199 property_set(FACTORY_BDADDR_PROPERTY, prop2);
200
201 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) > 0);
202 EXPECT_TRUE(strcmp(prop2, prop) == 0);
203
204 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) > 0);
205 EXPECT_TRUE(strcmp(prop2, prop) == 0);
206
207 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) > 0);
208 EXPECT_TRUE(strcmp(prop2, prop) == 0);
209 }
210
TEST_F(BluetoothAddressTest,get_local_address)211 TEST_F(BluetoothAddressTest, get_local_address) {
212 EXPECT_TRUE(property_set(PERSIST_BDADDR_PROPERTY, "") == 0);
213 EXPECT_TRUE(property_set(FACTORY_BDADDR_PROPERTY, "") == 0);
214 uint8_t address[BluetoothAddress::kBytes];
215
216 // File contains a non-zero Address.
217 FileWriteString(kAddrPath, kTestAddr1);
218 EXPECT_TRUE(property_set(PROPERTY_BT_BDADDR_PATH, kAddrPath) == 0);
219 EXPECT_TRUE(BluetoothAddress::get_local_address(address));
220 EXPECT_TRUE(memcmp(address, kTestAddr1_bytes, BluetoothAddress::kBytes) == 0);
221
222 // File contains a zero address. A random address will be generated.
223 FileWriteString(kAddrPath, kZeros);
224 EXPECT_TRUE(property_set(PROPERTY_BT_BDADDR_PATH, kAddrPath) == 0);
225 EXPECT_TRUE(property_set(PERSIST_BDADDR_PROPERTY, kTestAddrBad1) == 0);
226 EXPECT_TRUE(BluetoothAddress::get_local_address(address));
227 EXPECT_TRUE(memcmp(address, kZeros_bytes, BluetoothAddress::kBytes) != 0);
228 char prop[PROP_VALUE_MAX] = "Before reading";
229 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) ==
230 BluetoothAddress::kStringLength);
231 char address_str[BluetoothAddress::kStringLength + 1];
232 BluetoothAddress::bytes_to_string(address, address_str);
233 EXPECT_TRUE(memcmp(address_str, prop, BluetoothAddress::kStringLength) == 0);
234
235 // Factory property contains an address.
236 EXPECT_TRUE(property_set(PERSIST_BDADDR_PROPERTY, kTestAddrBad1) == 0);
237 EXPECT_TRUE(property_set(FACTORY_BDADDR_PROPERTY, kTestAddr1) == 0);
238 EXPECT_TRUE(BluetoothAddress::get_local_address(address));
239 EXPECT_TRUE(memcmp(address, kTestAddr1_bytes, BluetoothAddress::kBytes) == 0);
240
241 // Persistent property contains an address.
242 memcpy(address, kTestAddrBad1_bytes, BluetoothAddress::kBytes);
243 EXPECT_TRUE(property_set(PERSIST_BDADDR_PROPERTY, kTestAddr1) == 0);
244 EXPECT_TRUE(property_set(FACTORY_BDADDR_PROPERTY, "") == 0);
245 EXPECT_TRUE(property_set(PROPERTY_BT_BDADDR_PATH, "") == 0);
246 EXPECT_TRUE(BluetoothAddress::get_local_address(address));
247 EXPECT_TRUE(memcmp(address, kTestAddr1_bytes, BluetoothAddress::kBytes) == 0);
248 }
249
250 } // namespace implementation
251 } // namespace V1_0
252 } // namespace bluetooth
253 } // namespace hardware
254 } // namespace android
255