1 /* 2 * Copyright 2018 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 "link_layer_packet_view.h" 18 #include "base/logging.h" 19 20 namespace test_vendor_lib { 21 constexpr size_t Link::kSizeBytes; 22 constexpr size_t Link::kTypeBytes; 23 24 namespace packets { LinkLayerPacketView(std::shared_ptr<std::vector<uint8_t>> raw)25LinkLayerPacketView::LinkLayerPacketView(std::shared_ptr<std::vector<uint8_t>> raw) : PacketView<true>(raw) {} 26 Create(std::shared_ptr<std::vector<uint8_t>> raw)27LinkLayerPacketView LinkLayerPacketView::Create(std::shared_ptr<std::vector<uint8_t>> raw) { 28 CHECK(raw->size() >= Link::kSizeBytes + Link::kTypeBytes + 2 * Address::kLength); 29 return LinkLayerPacketView(raw); 30 } 31 GetType() const32Link::PacketType LinkLayerPacketView::GetType() const { 33 return static_cast<Link::PacketType>(at(Link::kSizeBytes)); 34 } 35 GetSourceAddress() const36Address LinkLayerPacketView::GetSourceAddress() const { 37 size_t offset = Link::kSizeBytes + Link::kTypeBytes; 38 return (begin() + offset).extract<Address>(); 39 } 40 GetDestinationAddress() const41Address LinkLayerPacketView::GetDestinationAddress() const { 42 size_t offset = Link::kSizeBytes + Link::kTypeBytes + Address::kLength; 43 return (begin() + offset).extract<Address>(); 44 } 45 GetPayload() const46PacketView<true> LinkLayerPacketView::GetPayload() const { 47 return SubViewLittleEndian(Link::kSizeBytes + Link::kTypeBytes + 2 * Address::kLength, size()); 48 } 49 50 } // namespace packets 51 } // namespace test_vendor_lib 52