1 /* 2 * Copyright (C) 2019 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 "device_config.h" 18 19 #include <sstream> 20 #include <type_traits> 21 22 #include <glog/logging.h> 23 24 namespace cvd { 25 26 // TODO(jemoreira): Endianness when on arm64 guest and x86 host is a problem 27 // Raw data is sent through a vsocket from host to guest, this assert tries to 28 // ensure the binary representation of the struct is the same in both sides. 29 static constexpr int kRawDataSize = 68 + 16; // ril + screen 30 static_assert(sizeof(DeviceConfig::RawData) == kRawDataSize && 31 std::is_trivial<DeviceConfig::RawData>().value, 32 "DeviceConfigRawData needs to be the same in host and guess, did " 33 "you forget to update the size?"); 34 35 namespace { 36 37 static constexpr auto kDataSize = sizeof(DeviceConfig::RawData); 38 39 } // namespace 40 SendRawData(cvd::SharedFD fd)41bool DeviceConfig::SendRawData(cvd::SharedFD fd) { 42 std::size_t sent = 0; 43 auto buffer = reinterpret_cast<uint8_t*>(&data_); 44 while (sent < kDataSize) { 45 auto bytes = fd->Write(buffer + sent, kDataSize - sent); 46 if (bytes < 0) { 47 // Don't log here, let the caller do it. 48 return false; 49 } 50 sent += bytes; 51 } 52 return true; 53 } 54 generate_address_and_prefix()55void DeviceConfig::generate_address_and_prefix() { 56 std::ostringstream ss; 57 ss << ril_ipaddr() << "/" << ril_prefixlen(); 58 ril_address_and_prefix_ = ss.str(); 59 } 60 61 } // namespace cvd