/*
 * Copyright (c) 2015 ARM Limited
 * All rights reserved
 *
 * The license below extends only to copyright in the software and shall
 * not be construed as granting a license to any other intellectual
 * property including but not limited to intellectual property relating
 * to a hardware implementation of the functionality of the software
 * licensed hereunder.  You may use the software subject to the license
 * terms below provided that you ensure that this notice is replicated
 * unmodified and in its entirety in all distributions of the software,
 * modified or unmodified, in source code or in binary form.
 *
 * 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: Gabor Dozsa
 */

/* @file
 * MultiHeaderPkt class to encapsulate multi-gem5 header packets
 *
 */

#include "dev/multi_packet.hh"

#include <cstdint>
#include <cstring>

#include "base/inet.hh"

unsigned
MultiHeaderPkt::maxAddressLength()
{
    return sizeof(AddressType);
}

void
MultiHeaderPkt::clearAddress(AddressType &addr)
{
    std::memset(addr, 0, sizeof(addr));
}

bool
MultiHeaderPkt::isAddressEqual(const AddressType &addr1,
                               const AddressType &addr2)
{
    return (std::memcmp(addr1, addr2, sizeof(addr1)) == 0);
}

bool
MultiHeaderPkt::isAddressLess(const AddressType &addr1,
                              const AddressType &addr2)
{
    return (std::memcmp(addr1, addr2, sizeof(addr1)) < 0);
}

void
MultiHeaderPkt::copyAddress(AddressType &dest, const AddressType &src)
{
    std::memcpy(dest, src, sizeof(dest));
}

bool
MultiHeaderPkt::isBroadcastAddress(const AddressType &addr)
{
    return ((Net::EthAddr *)&addr)->broadcast();
}

bool
MultiHeaderPkt::isMulticastAddress(const AddressType &addr)
{
    return ((Net::EthAddr *)&addr)->multicast();
}

bool
MultiHeaderPkt::isUnicastAddress(const AddressType &addr)
{
    return ((Net::EthAddr *)&addr)->unicast();
}