1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2011 Bucknell University
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation;
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
17  *
18  * Authors: L. Felipe Perrone (perrone@bucknell.edu)
19  *          Tiago G. Rodrigues (tgr002@bucknell.edu)
20  *
21  * Modified by: Mitch Watrous (watrous@u.washington.edu)
22  * Adapted to Ipv6 by: Tommaso Pecorella (tommaso.pecorella@unifi.it)
23  */
24 
25 #ifndef IPV6_PACKET_PROBE_H
26 #define IPV6_PACKET_PROBE_H
27 
28 #include "ns3/object.h"
29 #include "ns3/callback.h"
30 #include "ns3/boolean.h"
31 #include "ns3/nstime.h"
32 #include "ns3/packet.h"
33 #include "ns3/ipv6.h"
34 #include "ns3/traced-value.h"
35 #include "ns3/simulator.h"
36 #include "ns3/probe.h"
37 
38 namespace ns3 {
39 
40 /**
41  * \ingroup ipv6
42  *
43  * This class is designed to probe an underlying ns3 TraceSource
44  * exporting a packet, an IPv6 object, and an interface.  This probe
45  * exports a trace source "Output" with arguments of type Ptr<const Packet>,
46  * Ptr<Ipv6>, and uint32_t.  The Output trace source emits a value
47  * when either the trace source emits a new value, or when SetValue ()
48  * is called.
49  */
50 class Ipv6PacketProbe : public Probe
51 {
52 public:
53   /**
54    * \brief Get the type ID.
55    * \return the object TypeId
56    */
57   static TypeId GetTypeId ();
58 
59   Ipv6PacketProbe ();
60   virtual ~Ipv6PacketProbe ();
61 
62   /**
63    * \brief Set a probe value
64    *
65    * \param packet set the traced packet equal to this
66    * \param ipv6 set the IPv6 object for the traced packet equal to this
67    * \param interface set the IPv6 interface for the traced packet equal to this
68    */
69   void SetValue (Ptr<const Packet> packet, Ptr<Ipv6> ipv6, uint32_t interface);
70 
71   /**
72    * \brief Set a probe value by its name in the Config system
73    *
74    * \param path config path to access the probe
75    * \param packet set the traced packet equal to this
76    * \param ipv6 set the IPv6 object for the traced packet equal to this
77    * \param interface set the IPv6 interface for the traced packet equal to this
78    */
79   static void SetValueByPath (std::string path, Ptr<const Packet> packet, Ptr<Ipv6> ipv6, uint32_t interface);
80 
81   /**
82    * \brief connect to a trace source attribute provided by a given object
83    *
84    * \param traceSource the name of the attribute TraceSource to connect to
85    * \param obj ns3::Object to connect to
86    * \return true if the trace source was successfully connected
87    */
88   virtual bool ConnectByObject (std::string traceSource, Ptr<Object> obj);
89 
90   /**
91    * \brief connect to a trace source provided by a config path
92    *
93    * \param path Config path to bind to
94    *
95    * Note, if an invalid path is provided, the probe will not be connected
96    * to anything.
97    */
98   virtual void ConnectByPath (std::string path);
99 
100 private:
101   /**
102    * \brief Method to connect to an underlying ns3::TraceSource with
103    * arguments of type Ptr<const Packet>, Ptr<Ipv6>, and uint32_t
104    *
105    * \param packet the traced packet
106    * \param ipv6 the IPv6 object for the traced packet
107    * \param interface the IPv6 interface for the traced packet
108    */
109   void TraceSink (Ptr<const Packet> packet, Ptr<Ipv6> ipv6, uint32_t interface);
110 
111   /// Traced Callback: the packet, the Ipv6 object and the interface.
112   ns3::TracedCallback<Ptr<const Packet>, Ptr<Ipv6>, uint32_t> m_output;
113   /// Traced Callback: the previous packet's size and the actual packet's size.
114   ns3::TracedCallback<uint32_t, uint32_t> m_outputBytes;
115 
116   /// The traced packet.
117   Ptr<const Packet> m_packet;
118 
119   /// The IPv6 object for the traced packet.
120   Ptr<Ipv6> m_ipv6;
121 
122   /// The IPv6 interface for the traced packet.
123   uint32_t m_interface;
124 
125   /// The size of the traced packet.
126   uint32_t m_packetSizeOld;
127 };
128 
129 
130 } // namespace ns3
131 
132 #endif // IPV6_PACKET_PROBE_H
133