A Discrete-Event Network Simulator
API
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ipv4-packet-probe.cc
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1/*
2 * Copyright (c) 2011 Bucknell University
3 *
4 * SPDX-License-Identifier: GPL-2.0-only
5 *
6 * Authors: L. Felipe Perrone (perrone@bucknell.edu)
7 * Tiago G. Rodrigues (tgr002@bucknell.edu)
8 *
9 * Modified by: Mitch Watrous (watrous@u.washington.edu)
10 */
11
12#include "ipv4-packet-probe.h"
13
14#include "ns3/config.h"
15#include "ns3/log.h"
16#include "ns3/names.h"
17#include "ns3/object.h"
18#include "ns3/trace-source-accessor.h"
19
20namespace ns3
21{
22
23NS_LOG_COMPONENT_DEFINE("Ipv4PacketProbe");
24
25NS_OBJECT_ENSURE_REGISTERED(Ipv4PacketProbe);
26
27TypeId
29{
30 static TypeId tid =
31 TypeId("ns3::Ipv4PacketProbe")
33 .SetGroupName("Internet")
34 .AddConstructor<Ipv4PacketProbe>()
35 .AddTraceSource("Output",
36 "The packet plus its IPv4 object and interface "
37 "that serve as the output for this probe",
39 "ns3::Ipv4L3Protocol::TxRxTracedCallback")
40 .AddTraceSource("OutputBytes",
41 "The number of bytes in the packet",
43 "ns3::Packet::SizeTracedCallback");
44 return tid;
45}
46
48{
49 NS_LOG_FUNCTION(this);
50 m_packet = nullptr;
52 m_ipv4 = nullptr;
53 m_interface = 0;
54}
55
60
61void
63{
64 NS_LOG_FUNCTION(this << packet << ipv4 << interface);
65 m_packet = packet;
66 m_ipv4 = ipv4;
67 m_interface = interface;
68 m_output(packet, ipv4, interface);
69
70 uint32_t packetSizeNew = packet->GetSize();
71 m_outputBytes(m_packetSizeOld, packetSizeNew);
72 m_packetSizeOld = packetSizeNew;
73}
74
75void
77 Ptr<const Packet> packet,
78 Ptr<Ipv4> ipv4,
79 uint32_t interface)
80{
81 NS_LOG_FUNCTION(path << packet << ipv4 << interface);
83 NS_ASSERT_MSG(probe, "Error: Can't find probe for path " << path);
84 probe->SetValue(packet, ipv4, interface);
85}
86
87bool
88Ipv4PacketProbe::ConnectByObject(std::string traceSource, Ptr<Object> obj)
89{
90 NS_LOG_FUNCTION(this << traceSource << obj);
91 NS_LOG_DEBUG("Name of probe (if any) in names database: " << Names::FindPath(obj));
92 bool connected =
93 obj->TraceConnectWithoutContext(traceSource,
95 return connected;
96}
97
98void
100{
101 NS_LOG_FUNCTION(this << path);
102 NS_LOG_DEBUG("Name of probe to search for in config database: " << path);
104}
105
106void
108{
109 NS_LOG_FUNCTION(this << packet << ipv4 << interface);
110 if (IsEnabled())
111 {
112 m_packet = packet;
113 m_ipv4 = ipv4;
114 m_interface = interface;
115 m_output(packet, ipv4, interface);
116
117 uint32_t packetSizeNew = packet->GetSize();
118 m_outputBytes(m_packetSizeOld, packetSizeNew);
119 m_packetSizeOld = packetSizeNew;
120 }
121}
122
123} // namespace ns3
This class is designed to probe an underlying ns3 TraceSource exporting a packet, an IPv4 object,...
void ConnectByPath(std::string path) override
connect to a trace source provided by a config path
static void SetValueByPath(std::string path, Ptr< const Packet > packet, Ptr< Ipv4 > ipv4, uint32_t interface)
Set a probe value by its name in the Config system.
uint32_t m_packetSizeOld
The size of the traced packet.
ns3::TracedCallback< uint32_t, uint32_t > m_outputBytes
Traced Callback: the previous packet's size and the actual packet's size.
bool ConnectByObject(std::string traceSource, Ptr< Object > obj) override
connect to a trace source attribute provided by a given object
ns3::TracedCallback< Ptr< const Packet >, Ptr< Ipv4 >, uint32_t > m_output
Traced Callback: the packet, the Ipv4 object and the interface.
void TraceSink(Ptr< const Packet > packet, Ptr< Ipv4 > ipv4, uint32_t interface)
Method to connect to an underlying ns3::TraceSource with arguments of type Ptr<const Packet>,...
uint32_t m_interface
The IPv4 interface for the traced packet.
static TypeId GetTypeId()
Get the type ID.
void SetValue(Ptr< const Packet > packet, Ptr< Ipv4 > ipv4, uint32_t interface)
Set a probe value.
Ptr< Ipv4 > m_ipv4
The IPv4 object for the traced packet.
Ptr< const Packet > m_packet
The traced packet.
static Ptr< T > Find(std::string path)
Given a name path string, look to see if there's an object in the system with that associated to it.
Definition names.h:443
static std::string FindPath(Ptr< Object > object)
Given a pointer to an object, look to see if that object has a name associated with it and return the...
Definition names.cc:825
Base class for probes.
Definition probe.h:30
bool IsEnabled() const override
Definition probe.cc:54
Smart pointer class similar to boost::intrusive_ptr.
a unique identifier for an interface.
Definition type-id.h:48
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition type-id.cc:1001
#define NS_ASSERT_MSG(condition, message)
At runtime, in debugging builds, if this condition is not true, the program prints the message to out...
Definition assert.h:75
void ConnectWithoutContext(std::string path, const CallbackBase &cb)
Definition config.cc:943
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition log.h:191
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
Definition log.h:257
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition object-base.h:35
Ptr< const TraceSourceAccessor > MakeTraceSourceAccessor(T a)
Create a TraceSourceAccessor which will control access to the underlying trace source.
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Callback< R, Args... > MakeCallback(R(T::*memPtr)(Args...), OBJ objPtr)
Build Callbacks for class method members which take varying numbers of arguments and potentially retu...
Definition callback.h:684