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