etherpkt.cc revision 11263 
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 "dev/net/etherpkt.hh"
32
33#include <iostream>
34
35#include "base/inet.hh"
36#include "base/misc.hh"
37#include "sim/serialize.hh"
38
39using namespace std;
40
41void
42EthPacketData::serialize(const string &base, CheckpointOut &cp) const
43{
44    paramOut(cp, base + ".length", length);
45    arrayParamOut(cp, base + ".data", data, length);
46}
47
48void
49EthPacketData::unserialize(const string &base, CheckpointIn &cp)
50{
51    paramIn(cp, base + ".length", length);
52    if (length)
53        arrayParamIn(cp, base + ".data", data, length);
54}
55
56void
57EthPacketData::packAddress(uint8_t *src_addr,
58                           uint8_t *dst_addr,
59                           unsigned &nbytes)
60{
61    Net::EthHdr *hdr = (Net::EthHdr *)data;
62    assert(hdr->src().size() == hdr->dst().size());
63    if (nbytes < hdr->src().size())
64        panic("EthPacketData::packAddress() Buffer overflow");
65
66    memcpy(dst_addr, hdr->dst().bytes(), hdr->dst().size());
67    memcpy(src_addr, hdr->src().bytes(), hdr->src().size());
68
69    nbytes = hdr->src().size();
70}
71
72