etherpkt.cc revision 10923
1/* 2 * Copyright (c) 2004-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 */ 30 31#include <iostream> 32 33#include "base/misc.hh" 34#include "base/inet.hh" 35#include "dev/etherpkt.hh" 36#include "sim/serialize.hh" 37 38using namespace std; 39 40void 41EthPacketData::serialize(const string &base, CheckpointOut &cp) const 42{ 43 paramOut(cp, base + ".length", length); 44 arrayParamOut(cp, base + ".data", data, length); 45} 46 47void 48EthPacketData::unserialize(const string &base, CheckpointIn &cp) 49{ 50 paramIn(cp, base + ".length", length); 51 if (length) 52 arrayParamIn(cp, base + ".data", data, length); 53} 54 55void 56EthPacketData::packAddress(uint8_t *src_addr, 57 uint8_t *dst_addr, 58 unsigned &nbytes) 59{ 60 Net::EthHdr *hdr = (Net::EthHdr *)data; 61 assert(hdr->src().size() == hdr->dst().size()); 62 if (nbytes < hdr->src().size()) 63 panic("EthPacketData::packAddress() Buffer overflow"); 64 65 memcpy(dst_addr, hdr->dst().bytes(), hdr->dst().size()); 66 memcpy(src_addr, hdr->src().bytes(), hdr->src().size()); 67 68 nbytes = hdr->src().size(); 69} 70 71