/****************************************************************************** * * Copyright 2017 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ #include #include "advertise_data_parser.h" TEST(AdvertiseDataParserTest, IsValidEmpty) { const std::vector data0; EXPECT_TRUE(AdvertiseDataParser::IsValid(data0)); // Single empty field allowed (treated as zero padding). const std::vector data1{0x00}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data1)); } TEST(AdvertiseDataParserTest, IsValidBad) { // Single field, field empty. const std::vector data0{0x01}; EXPECT_FALSE(AdvertiseDataParser::IsValid(data0)); // Single field, first field length too long. const std::vector data1{0x05, 0x02, 0x00, 0x00, 0x00}; EXPECT_FALSE(AdvertiseDataParser::IsValid(data1)); // Two fields, second field length too long. const std::vector data2{0x02, 0x02, 0x00, 0x02, 0x00}; EXPECT_FALSE(AdvertiseDataParser::IsValid(data2)); // Two fields, second field empty. const std::vector data3{0x02, 0x02, 0x00, 0x01}; EXPECT_FALSE(AdvertiseDataParser::IsValid(data3)); // Non-zero padding at end of packet. const std::vector data4{0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x01, 0x00, 0x00, 0xBA, 0xBA, 0x00, 0x00}; EXPECT_FALSE(AdvertiseDataParser::IsValid(data1)); // Non-zero padding at end of packet. const std::vector data5{0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x01, 0x00, 0xBA}; EXPECT_FALSE(AdvertiseDataParser::IsValid(data1)); } TEST(AdvertiseDataParserTest, IsValidGood) { // Single field. const std::vector data0{0x03, 0x02, 0x01, 0x02}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data0)); // Two fields. const std::vector data1{0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x01}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data1)); // Zero padding at end of packet. const std::vector data2{0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x01, 0x00}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data2)); // zero padding at end of packet, sample data from real device const std::vector data3{0x10, 0x096, 0x85, 0x44, 0x32, 0x04, 0x74, 0x32, 0x03, 0x13, 0x93, 0xa, 0x32, 0x39, 0x3a, 0x65, 0x32, 0x05, 0x12, 0x50, 0x00, 0x50, 0x00, 0x02, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data3)); // Test Quirk for Traxxas (bad name length, should be 0x11 is 0x14) const std::vector data4{0x14, 0x09, 0x54, 0x52, 0x58, 0x20, 0x42, 0x4C, 0x45, 0x05, 0x12, 0x60, 0x00, 0xE8, 0x03, 0x02, 0x0A, 0x00}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data4)); // Test Quirk for Traxxas (bad name length, should be 0x11 is 0x14) const std::vector data5{0x14, 0x09, 0x54, 0x51, 0x69, 0x20, 0x42, 0x4C, 0x45, 0x05, 0x12, 0x64, 0x00, 0xE8, 0x03, 0x02, 0x0A, 0x00}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data5)); // Test Quirk for Traxxas (bad name length, should be 0x11 is 0x14) const std::vector data6{0x14, 0x09, 0x54, 0x51, 0x69, 0x20, 0x42, 0x4C, 0x45, 0x05, 0x12, 0x60, 0x00, 0xE8, 0x03, 0x02, 0x0A, 0x00}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data6)); // Test Quirk for Traxxas (bad length, should be 0x11 is 0x14) // scan response glued after advertise data const std::vector data7{0x02, 0x01, 0x06, 0x11, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x64, 0xB1, 0x73, 0x41, 0xE7, 0xF3, 0xC4, 0xB4, 0x80, 0x08, 0x14, 0x09, 0x54, 0x51, 0x69, 0x20, 0x42, 0x4C, 0x45, 0x05, 0x12, 0x60, 0x00, 0xE8, 0x03, 0x02, 0x0A, 0x00}; EXPECT_TRUE(AdvertiseDataParser::IsValid(data7)); } TEST(AdvertiseDataParserTest, GetFieldByType) { // Single field. const std::vector data0{0x03, 0x02, 0x01, 0x02}; uint8_t p_length; const uint8_t* data = AdvertiseDataParser::GetFieldByType(data0, 0x02, &p_length); EXPECT_EQ(data0.data() + 2, data); EXPECT_EQ(2, p_length); // Two fields, second field length too long. const std::vector data1{0x02, 0x02, 0x00, 0x03, 0x00}; // First field is ok. data = AdvertiseDataParser::GetFieldByType(data1, 0x02, &p_length); EXPECT_EQ(data1.data() + 2, data); EXPECT_EQ(0x01, p_length); // Second field have bad length. data = AdvertiseDataParser::GetFieldByType(data1, 0x03, &p_length); EXPECT_EQ(nullptr, data); EXPECT_EQ(0, p_length); } // This test makes sure that RemoveTrailingZeros is working correctly. It does // run the RemoveTrailingZeros for ad data, then glue scan response at end of // it, and checks that the resulting data is good. TEST(AdvertiseDataParserTest, RemoveTrailingZeros) { std::vector podo_ad_data{0x02, 0x01, 0x02, 0x11, 0x06, 0x66, 0x9a, 0x0c, 0x20, 0x00, 0x08, 0x37, 0xa8, 0xe5, 0x11, 0x81, 0x8b, 0xd0, 0xf0, 0xf0, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; std::vector podo_scan_resp{0x03, 0x19, 0x00, 0x80, 0x09, 0x09, 0x50, 0x6f, 0x64, 0x6f, 0x51, 0x35, 0x56, 0x47, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; AdvertiseDataParser::RemoveTrailingZeros(podo_ad_data); AdvertiseDataParser::RemoveTrailingZeros(podo_scan_resp); std::vector glued(podo_ad_data); glued.insert(glued.end(), podo_scan_resp.begin(), podo_scan_resp.end()); EXPECT_TRUE(AdvertiseDataParser::IsValid(glued)); } // This test makes sure that RemoveTrailingZeros is removing all bytes after // first zero length field. It does run the RemoveTrailingZeros for data with // non-zero bytes after zero length field, then glue scan response at end of it, // and checks that the resulting data is good. Note: specification requires all // bytes after zero length field to be zero padding, but many legacy devices got // this wrong, causing us to have this workaround. TEST(AdvertiseDataParserTest, RemoveTrailingZerosMalformed) { std::vector ad_data{0x02, 0x01, 0x02, 0x11, 0x06, 0x66, 0x9a, 0x0c, 0x20, 0x00, 0x08, 0x37, 0xa8, 0xe5, 0x11, 0x81, 0x8b, 0xd0, 0xf0, 0xf0, 0xf0, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; std::vector scan_resp{0x03, 0x19, 0x00, 0x80, 0x09, 0x09, 0x50, 0x6f, 0x64, 0x6f, 0x51, 0x35, 0x56, 0x47, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; AdvertiseDataParser::RemoveTrailingZeros(ad_data); AdvertiseDataParser::RemoveTrailingZeros(scan_resp); std::vector glued(ad_data); glued.insert(glued.end(), scan_resp.begin(), scan_resp.end()); EXPECT_TRUE(AdvertiseDataParser::IsValid(glued)); } TEST(AdvertiseDataParserTest, GetFieldByTypeInLoop) { // Single field. const uint8_t AD_TYPE_SVC_DATA = 0x16; const std::vector data0{0x02, 0x01, 0x02, 0x07, 0x2e, 0x6a, 0xc1, 0x19, 0x52, 0x1e, 0x49, 0x09, 0x16, 0x4e, 0x18, 0x00, 0xff, 0x0f, 0x03, 0x00, 0x00, 0x02, 0x0a, 0x7f, 0x03, 0x16, 0x4f, 0x18, 0x04, 0x16, 0x53, 0x18, 0x00, 0x0f, 0x09, 0x48, 0x5f, 0x43, 0x33, 0x45, 0x41, 0x31, 0x36, 0x33, 0x46, 0x35, 0x36, 0x34, 0x46}; const uint8_t* p_service_data = data0.data(); uint8_t service_data_len = 0; int match_no = 0; while ((p_service_data = AdvertiseDataParser::GetFieldByType( p_service_data + service_data_len, data0.size() - (p_service_data - data0.data()) - service_data_len, AD_TYPE_SVC_DATA, &service_data_len))) { auto position = (p_service_data - data0.data()); if (match_no == 0) { EXPECT_EQ(position, 13); EXPECT_EQ(service_data_len, 8); } else if (match_no == 1) { EXPECT_EQ(position, 26); EXPECT_EQ(service_data_len, 2); } else if (match_no == 2) { EXPECT_EQ(position, 30); EXPECT_EQ(service_data_len, 3); } match_no++; } EXPECT_EQ(match_no, 3); }