Jakub Pawlowski | 103b2c4 | 2017-04-28 14:59:46 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
Jakub Pawlowski | 5b790fe | 2017-09-18 09:00:20 -0700 | [diff] [blame] | 3 | * Copyright 2017 The Android Open Source Project |
Jakub Pawlowski | 103b2c4 | 2017-04-28 14:59:46 -0700 | [diff] [blame] | 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ******************************************************************************/ |
| 18 | |
| 19 | #include <gtest/gtest.h> |
| 20 | #include "advertise_data_parser.h" |
| 21 | |
| 22 | TEST(AdvertiseDataParserTest, IsValidEmpty) { |
| 23 | const std::vector<uint8_t> data0; |
| 24 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data0)); |
| 25 | |
Jakub Pawlowski | 08b907b | 2017-07-14 15:37:57 -0700 | [diff] [blame] | 26 | // Single empty field allowed (treated as zero padding). |
Jakub Pawlowski | 103b2c4 | 2017-04-28 14:59:46 -0700 | [diff] [blame] | 27 | const std::vector<uint8_t> data1{0x00}; |
Jakub Pawlowski | 08b907b | 2017-07-14 15:37:57 -0700 | [diff] [blame] | 28 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data1)); |
Jakub Pawlowski | 103b2c4 | 2017-04-28 14:59:46 -0700 | [diff] [blame] | 29 | } |
| 30 | |
| 31 | TEST(AdvertiseDataParserTest, IsValidBad) { |
| 32 | // Single field, field empty. |
| 33 | const std::vector<uint8_t> data0{0x01}; |
| 34 | EXPECT_FALSE(AdvertiseDataParser::IsValid(data0)); |
| 35 | |
| 36 | // Single field, first field length too long. |
| 37 | const std::vector<uint8_t> data1{0x05, 0x02, 0x00, 0x00, 0x00}; |
| 38 | EXPECT_FALSE(AdvertiseDataParser::IsValid(data1)); |
| 39 | |
| 40 | // Two fields, second field length too long. |
| 41 | const std::vector<uint8_t> data2{0x02, 0x02, 0x00, 0x02, 0x00}; |
| 42 | EXPECT_FALSE(AdvertiseDataParser::IsValid(data2)); |
| 43 | |
| 44 | // Two fields, second field empty. |
| 45 | const std::vector<uint8_t> data3{0x02, 0x02, 0x00, 0x01}; |
| 46 | EXPECT_FALSE(AdvertiseDataParser::IsValid(data3)); |
Jakub Pawlowski | 08b907b | 2017-07-14 15:37:57 -0700 | [diff] [blame] | 47 | |
| 48 | // Non-zero padding at end of packet. |
| 49 | const std::vector<uint8_t> data4{0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x01, |
| 50 | 0x00, 0x00, 0xBA, 0xBA, 0x00, 0x00}; |
| 51 | EXPECT_FALSE(AdvertiseDataParser::IsValid(data1)); |
| 52 | |
| 53 | // Non-zero padding at end of packet. |
| 54 | const std::vector<uint8_t> data5{0x03, 0x02, 0x01, 0x02, 0x02, |
| 55 | 0x03, 0x01, 0x00, 0xBA}; |
| 56 | EXPECT_FALSE(AdvertiseDataParser::IsValid(data1)); |
Jakub Pawlowski | 103b2c4 | 2017-04-28 14:59:46 -0700 | [diff] [blame] | 57 | } |
| 58 | |
| 59 | TEST(AdvertiseDataParserTest, IsValidGood) { |
| 60 | // Single field. |
| 61 | const std::vector<uint8_t> data0{0x03, 0x02, 0x01, 0x02}; |
| 62 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data0)); |
| 63 | |
| 64 | // Two fields. |
| 65 | const std::vector<uint8_t> data1{0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x01}; |
| 66 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data1)); |
Jakub Pawlowski | 08b907b | 2017-07-14 15:37:57 -0700 | [diff] [blame] | 67 | |
| 68 | // Zero padding at end of packet. |
| 69 | const std::vector<uint8_t> data2{0x03, 0x02, 0x01, 0x02, |
| 70 | 0x02, 0x03, 0x01, 0x00}; |
| 71 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data2)); |
| 72 | |
| 73 | // zero padding at end of packet, sample data from real device |
| 74 | const std::vector<uint8_t> data3{ |
| 75 | 0x10, 0x096, 0x85, 0x44, 0x32, 0x04, 0x74, 0x32, 0x03, 0x13, 0x93, |
| 76 | 0xa, 0x32, 0x39, 0x3a, 0x65, 0x32, 0x05, 0x12, 0x50, 0x00, 0x50, |
| 77 | 0x00, 0x02, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
| 78 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data3)); |
Jakub Pawlowski | 02d1ec1 | 2017-08-01 15:12:04 -0700 | [diff] [blame] | 79 | |
| 80 | // Test Quirk for Traxxas (bad name length, should be 0x11 is 0x14) |
| 81 | const std::vector<uint8_t> data4{0x14, 0x09, 0x54, 0x52, 0x58, 0x20, |
| 82 | 0x42, 0x4C, 0x45, 0x05, 0x12, 0x60, |
| 83 | 0x00, 0xE8, 0x03, 0x02, 0x0A, 0x00}; |
| 84 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data4)); |
| 85 | |
| 86 | // Test Quirk for Traxxas (bad name length, should be 0x11 is 0x14) |
| 87 | const std::vector<uint8_t> data5{0x14, 0x09, 0x54, 0x51, 0x69, 0x20, |
| 88 | 0x42, 0x4C, 0x45, 0x05, 0x12, 0x64, |
| 89 | 0x00, 0xE8, 0x03, 0x02, 0x0A, 0x00}; |
| 90 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data5)); |
| 91 | |
| 92 | // Test Quirk for Traxxas (bad name length, should be 0x11 is 0x14) |
| 93 | const std::vector<uint8_t> data6{0x14, 0x09, 0x54, 0x51, 0x69, 0x20, |
| 94 | 0x42, 0x4C, 0x45, 0x05, 0x12, 0x60, |
| 95 | 0x00, 0xE8, 0x03, 0x02, 0x0A, 0x00}; |
| 96 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data6)); |
| 97 | |
| 98 | // Test Quirk for Traxxas (bad length, should be 0x11 is 0x14) |
| 99 | // scan response glued after advertise data |
| 100 | const std::vector<uint8_t> data7{ |
| 101 | 0x02, 0x01, 0x06, 0x11, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 102 | 0x00, 0x64, 0xB1, 0x73, 0x41, 0xE7, 0xF3, 0xC4, 0xB4, 0x80, |
| 103 | 0x08, 0x14, 0x09, 0x54, 0x51, 0x69, 0x20, 0x42, 0x4C, 0x45, |
| 104 | 0x05, 0x12, 0x60, 0x00, 0xE8, 0x03, 0x02, 0x0A, 0x00}; |
| 105 | EXPECT_TRUE(AdvertiseDataParser::IsValid(data7)); |
Jakub Pawlowski | 103b2c4 | 2017-04-28 14:59:46 -0700 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | TEST(AdvertiseDataParserTest, GetFieldByType) { |
| 109 | // Single field. |
| 110 | const std::vector<uint8_t> data0{0x03, 0x02, 0x01, 0x02}; |
| 111 | |
| 112 | uint8_t p_length; |
| 113 | const uint8_t* data = |
| 114 | AdvertiseDataParser::GetFieldByType(data0, 0x02, &p_length); |
| 115 | EXPECT_EQ(data0.data() + 2, data); |
| 116 | EXPECT_EQ(2, p_length); |
| 117 | |
| 118 | // Two fields, second field length too long. |
| 119 | const std::vector<uint8_t> data1{0x02, 0x02, 0x00, 0x03, 0x00}; |
| 120 | |
| 121 | // First field is ok. |
| 122 | data = AdvertiseDataParser::GetFieldByType(data1, 0x02, &p_length); |
| 123 | EXPECT_EQ(data1.data() + 2, data); |
| 124 | EXPECT_EQ(0x01, p_length); |
| 125 | |
| 126 | // Second field have bad length. |
| 127 | data = AdvertiseDataParser::GetFieldByType(data1, 0x03, &p_length); |
| 128 | EXPECT_EQ(nullptr, data); |
| 129 | EXPECT_EQ(0, p_length); |
Jakub Pawlowski | 35a9ea3 | 2017-08-04 08:56:53 -0700 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | // This test makes sure that RemoveTrailingZeros is working correctly. It does |
| 133 | // run the RemoveTrailingZeros for ad data, then glue scan response at end of |
| 134 | // it, and checks that the resulting data is good. |
| 135 | TEST(AdvertiseDataParserTest, RemoveTrailingZeros) { |
| 136 | std::vector<uint8_t> podo_ad_data{ |
| 137 | 0x02, 0x01, 0x02, 0x11, 0x06, 0x66, 0x9a, 0x0c, 0x20, 0x00, 0x08, |
| 138 | 0x37, 0xa8, 0xe5, 0x11, 0x81, 0x8b, 0xd0, 0xf0, 0xf0, 0xf0, 0x00, |
| 139 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
Jakub Pawlowski | 5a290f8 | 2018-01-03 01:49:41 -0800 | [diff] [blame] | 140 | std::vector<uint8_t> podo_scan_resp{ |
Jakub Pawlowski | 35a9ea3 | 2017-08-04 08:56:53 -0700 | [diff] [blame] | 141 | 0x03, 0x19, 0x00, 0x80, 0x09, 0x09, 0x50, 0x6f, 0x64, 0x6f, 0x51, |
| 142 | 0x35, 0x56, 0x47, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 143 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; |
| 144 | |
| 145 | AdvertiseDataParser::RemoveTrailingZeros(podo_ad_data); |
Jakub Pawlowski | 5a290f8 | 2018-01-03 01:49:41 -0800 | [diff] [blame] | 146 | AdvertiseDataParser::RemoveTrailingZeros(podo_scan_resp); |
Jakub Pawlowski | 35a9ea3 | 2017-08-04 08:56:53 -0700 | [diff] [blame] | 147 | |
| 148 | std::vector<uint8_t> glued(podo_ad_data); |
Jakub Pawlowski | 5a290f8 | 2018-01-03 01:49:41 -0800 | [diff] [blame] | 149 | glued.insert(glued.end(), podo_scan_resp.begin(), podo_scan_resp.end()); |
| 150 | |
| 151 | EXPECT_TRUE(AdvertiseDataParser::IsValid(glued)); |
| 152 | } |
| 153 | |
| 154 | // This test makes sure that RemoveTrailingZeros is removing all bytes after |
| 155 | // first zero length field. It does run the RemoveTrailingZeros for data with |
| 156 | // non-zero bytes after zero length field, then glue scan response at end of it, |
| 157 | // and checks that the resulting data is good. Note: specification requires all |
| 158 | // bytes after zero length field to be zero padding, but many legacy devices got |
| 159 | // this wrong, causing us to have this workaround. |
| 160 | TEST(AdvertiseDataParserTest, RemoveTrailingZerosMalformed) { |
| 161 | std::vector<uint8_t> ad_data{0x02, 0x01, 0x02, 0x11, 0x06, 0x66, 0x9a, 0x0c, |
| 162 | 0x20, 0x00, 0x08, 0x37, 0xa8, 0xe5, 0x11, 0x81, |
| 163 | 0x8b, 0xd0, 0xf0, 0xf0, 0xf0, 0x00, 0xFF, 0xFF, |
| 164 | 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; |
| 165 | std::vector<uint8_t> scan_resp{0x03, 0x19, 0x00, 0x80, 0x09, 0x09, 0x50, 0x6f, |
| 166 | 0x64, 0x6f, 0x51, 0x35, 0x56, 0x47, 0x00, 0xFF, |
| 167 | 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, |
| 168 | 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; |
| 169 | |
| 170 | AdvertiseDataParser::RemoveTrailingZeros(ad_data); |
| 171 | AdvertiseDataParser::RemoveTrailingZeros(scan_resp); |
| 172 | |
| 173 | std::vector<uint8_t> glued(ad_data); |
| 174 | glued.insert(glued.end(), scan_resp.begin(), scan_resp.end()); |
Jakub Pawlowski | 35a9ea3 | 2017-08-04 08:56:53 -0700 | [diff] [blame] | 175 | |
| 176 | EXPECT_TRUE(AdvertiseDataParser::IsValid(glued)); |
Jakub Pawlowski | 103b2c4 | 2017-04-28 14:59:46 -0700 | [diff] [blame] | 177 | } |