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Diffstat (limited to 'src/dev/net/etherpkt.cc')
-rw-r--r-- | src/dev/net/etherpkt.cc | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/dev/net/etherpkt.cc b/src/dev/net/etherpkt.cc new file mode 100644 index 000000000..a16f572c5 --- /dev/null +++ b/src/dev/net/etherpkt.cc @@ -0,0 +1,71 @@ +/* + * Copyright (c) 2004-2005 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Authors: Nathan Binkert + */ + +#include "dev/net/etherpkt.hh" + +#include <iostream> + +#include "base/inet.hh" +#include "base/misc.hh" +#include "sim/serialize.hh" + +using namespace std; + +void +EthPacketData::serialize(const string &base, CheckpointOut &cp) const +{ + paramOut(cp, base + ".length", length); + arrayParamOut(cp, base + ".data", data, length); +} + +void +EthPacketData::unserialize(const string &base, CheckpointIn &cp) +{ + paramIn(cp, base + ".length", length); + if (length) + arrayParamIn(cp, base + ".data", data, length); +} + +void +EthPacketData::packAddress(uint8_t *src_addr, + uint8_t *dst_addr, + unsigned &nbytes) +{ + Net::EthHdr *hdr = (Net::EthHdr *)data; + assert(hdr->src().size() == hdr->dst().size()); + if (nbytes < hdr->src().size()) + panic("EthPacketData::packAddress() Buffer overflow"); + + memcpy(dst_addr, hdr->dst().bytes(), hdr->dst().size()); + memcpy(src_addr, hdr->src().bytes(), hdr->src().size()); + + nbytes = hdr->src().size(); +} + |