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Diffstat (limited to 'dev/etherpkt.hh')
-rw-r--r-- | dev/etherpkt.hh | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/dev/etherpkt.hh b/dev/etherpkt.hh new file mode 100644 index 000000000..4927cc779 --- /dev/null +++ b/dev/etherpkt.hh @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2003 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. + */ + +/* @file + * Reference counted class containing ethernet packet data + */ + +#ifndef __ETHERPKT_HH__ +#define __ETHERPKT_HH__ + +#include <memory> + +#include "host.hh" + +#include "refcnt.hh" + +/* + * Reference counted class containing ethernet packet data + */ +class EtherPacket : public RefCounted +{ + public: + uint8_t *data; + int length; + + public: + EtherPacket() : data(NULL), length(0) {} + EtherPacket(std::auto_ptr<uint8_t> d, int l) + : data(d.release()), length(l) {} + ~EtherPacket() { if (data) delete [] data; } + + public: + bool IsUnicast() { return data[0] == 0x00; } + bool IsMulticast() { return data[0] == 0x01; } + bool IsBroadcast() { return data[0] == 0xff; } +}; + +typedef RefCountingPtr<EtherPacket> PacketPtr; + +#endif // __ETHERPKT_HH__ |