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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
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/* |
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* Copyright (c) 2006,2007 INRIA |
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* All rights reserved. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation; |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr> |
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*/ |
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#include "ns3/packet.h" |
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#include "ns3/packet.h" |
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#include "ns3/header.h" |
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#include "ns3/header.h" |
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#include "ns3/packet-printer.h" |
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#include "ns3/packet-printer.h" |
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using namespace ns3; |
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using namespace ns3; |
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// This sample file shows how to use the Packet metadata facility |
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// |
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// Packets are stored as ``packed'' data structures, to facilitate |
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// fragmentation and network emulation. However, when debugging a program, |
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// or for certain tracing applications, it may be convenient to dump out |
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// the contents of a packet header in a human-friendly form. |
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// |
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// To do this, a few things are needed: |
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// i) enable the metadata facility (disabled by default, because it causes |
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// a small performance hit |
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// ii) decide on whether you want to use a default or customized (you |
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// provide your own) routine to dump a particular header |
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// |
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// This sample steps through two routines; one to use the default |
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// printing of IPv4 and UDP headers, and one to show a non-default case. |
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// There is a lot of emphasis in this sample of how this facility |
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// interacts with packet fragmentation. |
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void DefaultPrint (void) |
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void DefaultPrint (void) |
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{ |
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{ |
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Lines 19-28
void DefaultPrint (void)
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ipv4.SetDestination (Ipv4Address ("192.168.0.2")); |
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ipv4.SetDestination (Ipv4Address ("192.168.0.2")); |
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udp.SetSource (1025); |
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udp.SetSource (1025); |
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udp.SetDestination (80); |
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udp.SetDestination (80); |
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udp.SetPayloadSize (1000); |
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p.AddHeader (udp); |
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p.AddHeader (udp); |
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p.AddHeader (ipv4); |
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p.AddHeader (ipv4); |
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std::cout << "full packet size=" << p.GetSize () << std::endl; |
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std::cout << "full packet size=" << p.GetSize () << std::endl; |
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// Here, invoke the default Print routine, directed to std out |
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p.Print (std::cout); |
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p.Print (std::cout); |
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std::cout << std::endl; |
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std::cout << std::endl; |
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Lines 51-56
void DefaultPrint (void)
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std::cout << std::endl; |
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std::cout << std::endl; |
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} |
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} |
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// The below functions are used in place of default versions, in the |
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// non-default case below. For instance, DoPrintIpv4Header will print |
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// out less IPv4 header information than the default print function |
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void |
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void |
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DoPrintDefault (std::ostream &os,uint32_t packetUid, uint32_t size, |
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DoPrintDefault (std::ostream &os,uint32_t packetUid, uint32_t size, |
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std::string &name, struct PacketPrinter::FragmentInformation info) |
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std::string &name, struct PacketPrinter::FragmentInformation info) |
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DoPrintIpv4HeaderFragment (std::ostream
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Link Here
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os << "IPV4 fragment"; |
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os << "IPV4 fragment"; |
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} |
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} |
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// This function walks through a non-default case. A few features of |
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// the API (defined in common/packet-printer.h) are shown. |
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// |
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void NonDefaultPrint (void) |
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void NonDefaultPrint (void) |
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{ |
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{ |
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// create an adhoc packet printer. |
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// create an adhoc packet printer. |
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void NonDefaultPrint (void)
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ipv4.SetDestination (Ipv4Address ("192.168.0.2")); |
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ipv4.SetDestination (Ipv4Address ("192.168.0.2")); |
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udp.SetSource (1025); |
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udp.SetSource (1025); |
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udp.SetDestination (80); |
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udp.SetDestination (80); |
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udp.SetPayloadSize (1000); |
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p.AddHeader (udp); |
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p.AddHeader (udp); |
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p.AddHeader (ipv4); |
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p.AddHeader (ipv4); |
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int main (int argc, char *argv[])
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Link Here
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{ |
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{ |
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Packet::EnableMetadata (); |
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Packet::EnableMetadata (); |
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std::cout << "DefaultPrint()" << std::endl; |
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DefaultPrint (); |
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DefaultPrint (); |
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std::cout << std::endl << "NonDefaultPrint()" << std::endl; |
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NonDefaultPrint (); |
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NonDefaultPrint (); |
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return 0; |
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return 0; |