/usr/include/ns3/ppp-header.h is in libns3-dev 3.13+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2008 University of Washington
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef PPP_HEADER_H
#define PPP_HEADER_H
#include "ns3/header.h"
namespace ns3 {
/**
* \ingroup point-to-point
* \brief Packet header for PPP
*
* This class can be used to add a header to PPP packet. Currently we do not
* implement any of the state machine in RFC 1661, we just encapsulate the
* inbound packet send it on. The goal here is not really to implement the
* point-to-point protocol, but to encapsulate our packets in a known protocol
* so packet sniffers can parse them.
*
* if PPP is transmitted over a serial link, it will typically be framed in
* some way derivative of IBM SDLC (HDLC) with all that that entails.
* Thankfully, we don't have to deal with all of that -- we can use our own
* protocol for getting bits across the serial link which we call an ns3
* Packet. What we do have to worry about is being able to capture PPP frames
* which are understandable by Wireshark. All this means is that we need to
* teach the PcapWriter about the appropriate data link type (DLT_PPP = 9),
* and we need to add a PPP header to each packet. Since we are not using
* framed PPP, this just means prepending the sixteen bit PPP protocol number
* to the packet. The ns-3 way to do this is via a class that inherits from
* class Header.
*/
class PppHeader : public Header
{
public:
/**
* \brief Construct a PPP header.
*/
PppHeader ();
/**
* \brief Destroy a PPP header.
*/
virtual ~PppHeader ();
static TypeId GetTypeId (void);
virtual TypeId GetInstanceTypeId (void) const;
virtual void Print (std::ostream &os) const;
virtual void Serialize (Buffer::Iterator start) const;
virtual uint32_t Deserialize (Buffer::Iterator start);
virtual uint32_t GetSerializedSize (void) const;
/**
* \brief Set the protocol type carried by this PPP packet
*
* The type numbers to be used are defined in RFC3818
*
* \param protocol the protocol type being carried
*/
void SetProtocol (uint16_t protocol);
/**
* \brief Get the protocol type carried by this PPP packet
*
* The type numbers to be used are defined in RFC3818
*
* \return the protocol type being carried
*/
uint16_t GetProtocol (void);
private:
/**
* \brief The PPP protocol type of the payload packet
*/
uint16_t m_protocol;
};
} // namespace ns3
#endif /* PPP_HEADER_H */
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