/* * Copyright (C) 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. */ #pragma once #include <netinet/icmp6.h> #include <netinet/ip6.h> #include <string> #include <vector> #include "message.h" class Packet { public: enum class Type { NeighborSolicitation, NeighborAdvertisement, RouterSolicitation, RouterAdvertisement, Other }; explicit Packet(Message& message); // Create a string that can be used for debug purposes to describe // what type of packet and potentially its target for certain types. std::string description() const; // Full size including IP header size_t fullSize() const { return mMessage.size(); } // Remaining size including ICMPv6 header but excluding IP header size_t icmpSize() const { return mMessage.size() - sizeof(ip6_hdr); } Type type() const { return mType; } const ip6_hdr* ip() const { return mIp; } const icmp6_hdr* icmp() const { return mIcmp; } nd_opt_hdr* firstOpt(); nd_opt_hdr* nextOpt(nd_opt_hdr* currentHeader); private: Message& mMessage; Type mType; const ip6_hdr* mIp; const icmp6_hdr* mIcmp; nd_opt_hdr* mFirstOpt; };