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 <errno.h>
19 #include <fcntl.h>
20 #include <gtest/gtest.h>
21
22 #include <string>
23 #include <vector>
24 using std::vector;
25
26 #include "bluetooth_address.h"
27
28 namespace android {
29 namespace hardware {
30 namespace bluetooth {
31 namespace V1_0 {
32 namespace implementation {
33
34 constexpr char kTestAddr1[BluetoothAddress::kStringLength + 1] =
35 "12:34:56:78:9a:bc";
36 constexpr uint8_t kTestAddr1_bytes[BluetoothAddress::kBytes] = {
37 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc};
38 constexpr char kZeros[BluetoothAddress::kStringLength + 1] =
39 "00:00:00:00:00:00";
40 constexpr uint8_t kZeros_bytes[BluetoothAddress::kBytes] = {0x00, 0x00, 0x00,
41 0x00, 0x00, 0x00};
42 constexpr char kTestAddrBad1[BluetoothAddress::kStringLength + 1] =
43 "bb:aa:dd:00:00:01";
44 constexpr uint8_t kTestAddrBad1_bytes[BluetoothAddress::kBytes] = {
45 0xbb, 0xaa, 0xdd, 0x00, 0x00, 0x01};
46
47 constexpr char kAddrPath[] = "/tmp/my_address_in_a_file.txt";
48
49 class BluetoothAddressTest : public ::testing::Test {
50 public:
BluetoothAddressTest()51 BluetoothAddressTest() {}
~BluetoothAddressTest()52 ~BluetoothAddressTest() {}
53
54 void FileWriteString(const char* path, const char* string);
55 };
56
FileWriteString(const char * path,const char * string)57 void BluetoothAddressTest::FileWriteString(const char* path,
58 const char* string) {
59 int fd = open(path, O_CREAT | O_RDWR, 0600);
60 EXPECT_TRUE(fd > 0) << "err = " << strerror(errno);
61
62 size_t length = strlen(string);
63 size_t bytes_written = write(fd, string, length);
64
65 EXPECT_EQ(length, bytes_written) << strerror(errno);
66
67 close(fd);
68 }
69
TEST_F(BluetoothAddressTest,string_to_bytes)70 TEST_F(BluetoothAddressTest, string_to_bytes) {
71 uint8_t addr[BluetoothAddress::kBytes];
72
73 // Malformed addresses
74 EXPECT_FALSE(BluetoothAddress::string_to_bytes("", addr));
75 EXPECT_FALSE(BluetoothAddress::string_to_bytes("000000000000", addr));
76 EXPECT_FALSE(BluetoothAddress::string_to_bytes("00:00:00:00:0000", addr));
77 EXPECT_FALSE(BluetoothAddress::string_to_bytes("00:00:00:00:00:0", addr));
78 EXPECT_FALSE(BluetoothAddress::string_to_bytes("00:00:00:00:00:0;", addr));
79 EXPECT_FALSE(BluetoothAddress::string_to_bytes("aB:cD:eF:Gh:iJ:Kl", addr));
80 EXPECT_FALSE(BluetoothAddress::string_to_bytes("00:00:000:00:00:0;", addr));
81 EXPECT_FALSE(BluetoothAddress::string_to_bytes("12:34:56:78:90:12;", addr));
82 EXPECT_FALSE(BluetoothAddress::string_to_bytes("12:34:56:78:90:123", addr));
83
84 // Reasonable addresses
85 EXPECT_TRUE(BluetoothAddress::string_to_bytes("00:00:00:00:00:00", addr));
86 EXPECT_TRUE(BluetoothAddress::string_to_bytes("a5:a5:a5:a5:a5:a5", addr));
87 EXPECT_TRUE(BluetoothAddress::string_to_bytes("5A:5A:5A:5A:5A:5A", addr));
88 EXPECT_TRUE(BluetoothAddress::string_to_bytes("AA:BB:CC:DD:EE:FF", addr));
89 EXPECT_TRUE(BluetoothAddress::string_to_bytes("aa:bb:cc:dd:ee:ff", addr));
90
91 // Compare the output to known bytes
92 uint8_t addrA[BluetoothAddress::kBytes];
93 uint8_t addrB[BluetoothAddress::kBytes];
94
95 // kTestAddr1
96 EXPECT_TRUE(BluetoothAddress::string_to_bytes(kTestAddr1, addrA));
97 EXPECT_TRUE(memcmp(addrA, kTestAddr1_bytes, BluetoothAddress::kBytes) == 0);
98
99 // kZeros
100 EXPECT_TRUE(BluetoothAddress::string_to_bytes(kZeros, addrB));
101 EXPECT_TRUE(memcmp(addrB, kZeros_bytes, BluetoothAddress::kBytes) == 0);
102
103 // kTestAddr1 != kZeros
104 EXPECT_FALSE(memcmp(addrA, addrB, BluetoothAddress::kBytes) == 0);
105 }
106
TEST_F(BluetoothAddressTest,bytes_to_string)107 TEST_F(BluetoothAddressTest, bytes_to_string) {
108 char addrA[BluetoothAddress::kStringLength + 1] = "";
109 char addrB[BluetoothAddress::kStringLength + 1] = "";
110
111 // kTestAddr1
112 BluetoothAddress::bytes_to_string(kTestAddr1_bytes, addrA);
113 EXPECT_TRUE(memcmp(addrA, kTestAddr1, BluetoothAddress::kStringLength) == 0);
114
115 // kZeros
116 BluetoothAddress::bytes_to_string(kZeros_bytes, addrB);
117 EXPECT_TRUE(memcmp(addrB, kZeros, BluetoothAddress::kStringLength) == 0);
118
119 // kTestAddr1 != kZeros
120 EXPECT_FALSE(memcmp(addrA, addrB, BluetoothAddress::kStringLength) == 0);
121 }
122
TEST_F(BluetoothAddressTest,property_set)123 TEST_F(BluetoothAddressTest, property_set) {
124 // Set the properties to empty strings.
125 property_set(PERSIST_BDADDR_PROPERTY, "");
126 property_set(PROPERTY_BT_BDADDR_PATH, "");
127 property_set(FACTORY_BDADDR_PROPERTY, "");
128
129 // Get returns 0.
130 char prop[PROP_VALUE_MAX] = "";
131 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) == 0);
132 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) == 0);
133 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) == 0);
134
135 // Set the properties to known strings.
136 property_set(PERSIST_BDADDR_PROPERTY, "1");
137 property_set(PROPERTY_BT_BDADDR_PATH, "22");
138 property_set(FACTORY_BDADDR_PROPERTY, "333");
139
140 // Get returns the correct length.
141 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) == 1);
142 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) == 2);
143 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) == 3);
144
145 // Set the properties to empty strings again.
146 property_set(PERSIST_BDADDR_PROPERTY, "");
147 property_set(PROPERTY_BT_BDADDR_PATH, "");
148 property_set(FACTORY_BDADDR_PROPERTY, "");
149
150 // Get returns 0.
151 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) == 0);
152 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) == 0);
153 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) == 0);
154 }
155
TEST_F(BluetoothAddressTest,property_get)156 TEST_F(BluetoothAddressTest, property_get) {
157 // Set the properties to known strings.
158 property_set(PERSIST_BDADDR_PROPERTY, PERSIST_BDADDR_PROPERTY);
159 property_set(PROPERTY_BT_BDADDR_PATH, PROPERTY_BT_BDADDR_PATH);
160 property_set(FACTORY_BDADDR_PROPERTY, FACTORY_BDADDR_PROPERTY);
161
162 // Get returns the same strings.
163 char prop[PROP_VALUE_MAX] = "";
164 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) > 0);
165 EXPECT_TRUE(strcmp(PERSIST_BDADDR_PROPERTY, prop) == 0);
166
167 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) > 0);
168 EXPECT_TRUE(strcmp(PROPERTY_BT_BDADDR_PATH, prop) == 0);
169
170 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) > 0);
171 EXPECT_TRUE(strcmp(FACTORY_BDADDR_PROPERTY, prop) == 0);
172
173 // Set a property to a different known string.
174 char prop2[PROP_VALUE_MAX] = "Erased";
175 property_set(PERSIST_BDADDR_PROPERTY, prop2);
176
177 // Get returns the correct strings.
178 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) > 0);
179 EXPECT_TRUE(strcmp(prop2, prop) == 0);
180
181 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) > 0);
182 EXPECT_TRUE(strcmp(PROPERTY_BT_BDADDR_PATH, prop) == 0);
183
184 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) > 0);
185 EXPECT_TRUE(strcmp(FACTORY_BDADDR_PROPERTY, prop) == 0);
186
187 // Set another property to prop2.
188 property_set(PROPERTY_BT_BDADDR_PATH, prop2);
189
190 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) > 0);
191 EXPECT_TRUE(strcmp(prop2, prop) == 0);
192
193 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) > 0);
194 EXPECT_TRUE(strcmp(prop2, prop) == 0);
195
196 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) > 0);
197 EXPECT_TRUE(strcmp(FACTORY_BDADDR_PROPERTY, prop) == 0);
198
199 // Set the third property to prop2.
200 property_set(FACTORY_BDADDR_PROPERTY, prop2);
201
202 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) > 0);
203 EXPECT_TRUE(strcmp(prop2, prop) == 0);
204
205 EXPECT_TRUE(property_get(PROPERTY_BT_BDADDR_PATH, prop, NULL) > 0);
206 EXPECT_TRUE(strcmp(prop2, prop) == 0);
207
208 EXPECT_TRUE(property_get(FACTORY_BDADDR_PROPERTY, prop, NULL) > 0);
209 EXPECT_TRUE(strcmp(prop2, prop) == 0);
210 }
211
TEST_F(BluetoothAddressTest,get_local_address)212 TEST_F(BluetoothAddressTest, get_local_address) {
213 EXPECT_TRUE(property_set(PERSIST_BDADDR_PROPERTY, "") == 0);
214 EXPECT_TRUE(property_set(FACTORY_BDADDR_PROPERTY, "") == 0);
215 uint8_t address[BluetoothAddress::kBytes];
216
217 // File contains a non-zero Address.
218 FileWriteString(kAddrPath, kTestAddr1);
219 EXPECT_TRUE(property_set(PROPERTY_BT_BDADDR_PATH, kAddrPath) == 0);
220 EXPECT_TRUE(BluetoothAddress::get_local_address(address));
221 EXPECT_TRUE(memcmp(address, kTestAddr1_bytes, BluetoothAddress::kBytes) == 0);
222
223 // File contains a zero address. A random address will be generated.
224 FileWriteString(kAddrPath, kZeros);
225 EXPECT_TRUE(property_set(PROPERTY_BT_BDADDR_PATH, kAddrPath) == 0);
226 EXPECT_TRUE(property_set(PERSIST_BDADDR_PROPERTY, kTestAddrBad1) == 0);
227 EXPECT_TRUE(BluetoothAddress::get_local_address(address));
228 EXPECT_TRUE(memcmp(address, kZeros_bytes, BluetoothAddress::kBytes) != 0);
229 char prop[PROP_VALUE_MAX] = "Before reading";
230 EXPECT_TRUE(property_get(PERSIST_BDADDR_PROPERTY, prop, NULL) ==
231 BluetoothAddress::kStringLength);
232 char address_str[BluetoothAddress::kStringLength + 1];
233 BluetoothAddress::bytes_to_string(address, address_str);
234 EXPECT_TRUE(memcmp(address_str, prop, BluetoothAddress::kStringLength) == 0);
235
236 // Factory property contains an address.
237 EXPECT_TRUE(property_set(PERSIST_BDADDR_PROPERTY, kTestAddrBad1) == 0);
238 EXPECT_TRUE(property_set(FACTORY_BDADDR_PROPERTY, kTestAddr1) == 0);
239 EXPECT_TRUE(BluetoothAddress::get_local_address(address));
240 EXPECT_TRUE(memcmp(address, kTestAddr1_bytes, BluetoothAddress::kBytes) == 0);
241
242 // Persistent property contains an address.
243 memcpy(address, kTestAddrBad1_bytes, BluetoothAddress::kBytes);
244 EXPECT_TRUE(property_set(PERSIST_BDADDR_PROPERTY, kTestAddr1) == 0);
245 EXPECT_TRUE(property_set(FACTORY_BDADDR_PROPERTY, "") == 0);
246 EXPECT_TRUE(property_set(PROPERTY_BT_BDADDR_PATH, "") == 0);
247 EXPECT_TRUE(BluetoothAddress::get_local_address(address));
248 EXPECT_TRUE(memcmp(address, kTestAddr1_bytes, BluetoothAddress::kBytes) == 0);
249 }
250
251 } // namespace implementation
252 } // namespace V1_0
253 } // namespace bluetooth
254 } // namespace hardware
255 } // namespace android
256