73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
/*
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* This file is open source software, licensed to you under the terms
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* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
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* distributed with this work for additional information regarding copyright
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* ownership. You may not use this file except in compliance with the License.
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*
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/*
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* Copyright (C) 2014 Cloudius Systems, Ltd.
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*/
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#ifndef ETHERNET_HH_
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#define ETHERNET_HH_
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#include <array>
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#include "byteorder.hh"
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#include "core/print.hh"
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namespace net {
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struct ethernet_address {
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ethernet_address() {}
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ethernet_address(const uint8_t *eaddr) {
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std::copy(eaddr, eaddr + 6, mac.begin());
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}
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ethernet_address(std::initializer_list<uint8_t> eaddr) {
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assert(eaddr.size() == mac.size());
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std::copy(eaddr.begin(), eaddr.end(), mac.begin());
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}
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std::array<uint8_t, 6> mac;
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template <typename Adjuster>
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void adjust_endianness(Adjuster a) {}
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} __attribute__((packed));
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std::ostream& operator<<(std::ostream& os, ethernet_address ea);
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struct ethernet {
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using address = ethernet_address;
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static address broadcast_address() {
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return {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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}
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static constexpr uint16_t arp_hardware_type() { return 1; }
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};
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struct eth_hdr {
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ethernet_address dst_mac;
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ethernet_address src_mac;
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packed<uint16_t> eth_proto;
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template <typename Adjuster>
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auto adjust_endianness(Adjuster a) {
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return a(eth_proto);
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}
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} __attribute__((packed));
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ethernet_address parse_ethernet_address(std::string addr);
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}
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#endif /* ETHERNET_HH_ */
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