1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2009 University of Washington
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 
19 #ifndef IPV4_STATIC_ROUTING_HELPER_H
20 #define IPV4_STATIC_ROUTING_HELPER_H
21 
22 #include "ns3/ipv4.h"
23 #include "ns3/ipv4-static-routing.h"
24 #include "ns3/ptr.h"
25 #include "ns3/ipv4-address.h"
26 #include "ns3/node.h"
27 #include "ns3/net-device.h"
28 #include "ns3/ipv4-routing-helper.h"
29 #include "ns3/node-container.h"
30 #include "ns3/net-device-container.h"
31 
32 namespace ns3 {
33 
34 /**
35  * \ingroup ipv4Helpers
36  *
37  * \brief Helper class that adds ns3::Ipv4StaticRouting objects
38  *
39  * This class is expected to be used in conjunction with
40  * ns3::InternetStackHelper::SetRoutingHelper
41  */
42 class Ipv4StaticRoutingHelper : public Ipv4RoutingHelper
43 {
44 public:
45   /*
46    * Construct an Ipv4StaticRoutingHelper object, used to make configuration
47    * of static routing easier.
48    */
49   Ipv4StaticRoutingHelper ();
50 
51   /**
52    * \brief Construct an Ipv4StaticRoutingHelper from another previously
53    * initialized instance (Copy Constructor).
54    * \param o object to be copied
55    */
56   Ipv4StaticRoutingHelper (const Ipv4StaticRoutingHelper &o);
57 
58   /**
59    * \returns pointer to clone of this Ipv4StaticRoutingHelper
60    *
61    * This method is mainly for internal use by the other helpers;
62    * clients are expected to free the dynamic memory allocated by this method
63    */
64   Ipv4StaticRoutingHelper* Copy (void) const;
65 
66   /**
67    * \param node the node on which the routing protocol will run
68    * \returns a newly-created routing protocol
69    *
70    * This method will be called by ns3::InternetStackHelper::Install
71    */
72   virtual Ptr<Ipv4RoutingProtocol> Create (Ptr<Node> node) const;
73 
74   /**
75    * Try and find the static routing protocol as either the main routing
76    * protocol or in the list of routing protocols associated with the
77    * Ipv4 provided.
78    *
79    * \param ipv4 the Ptr<Ipv4> to search for the static routing protocol
80    * \returns Ipv4StaticRouting pointer or 0 if not found
81    */
82   Ptr<Ipv4StaticRouting> GetStaticRouting (Ptr<Ipv4> ipv4) const;
83 
84   /**
85    * \brief Add a multicast route to a node and net device using explicit
86    * Ptr<Node> and Ptr<NetDevice>
87    *
88    * \param n The node.
89    * \param source Source address.
90    * \param group Multicast group.
91    * \param input Input NetDevice.
92    * \param output Output NetDevices.
93    */
94   void AddMulticastRoute (Ptr<Node> n, Ipv4Address source, Ipv4Address group,
95                           Ptr<NetDevice> input, NetDeviceContainer output);
96 
97   /**
98    * \brief Add a multicast route to a node and device using a name string
99    * previously associated to the node using the Object Name Service and a
100    * Ptr<NetDevice>
101    *
102    * \param n The node.
103    * \param source Source address.
104    * \param group Multicast group.
105    * \param input Input NetDevice.
106    * \param output Output NetDevices.
107    */
108   void AddMulticastRoute (std::string n, Ipv4Address source, Ipv4Address group,
109                           Ptr<NetDevice> input, NetDeviceContainer output);
110 
111   /**
112    * \brief Add a multicast route to a node and device using a Ptr<Node> and a
113    * name string previously associated to the device using the Object Name Service.
114    *
115    * \param n The node.
116    * \param source Source address.
117    * \param group Multicast group.
118    * \param inputName Input NetDevice.
119    * \param output Output NetDevices.
120    */
121   void AddMulticastRoute (Ptr<Node> n, Ipv4Address source, Ipv4Address group,
122                           std::string inputName, NetDeviceContainer output);
123 
124   /**
125    * \brief Add a multicast route to a node and device using name strings
126    * previously associated to both the node and device using the Object Name
127    * Service.
128    *
129    * \param nName The node.
130    * \param source Source address.
131    * \param group Multicast group.
132    * \param inputName Input NetDevice.
133    * \param output Output NetDevices.
134    */
135   void AddMulticastRoute (std::string nName, Ipv4Address source, Ipv4Address group,
136                           std::string inputName, NetDeviceContainer output);
137 
138   /**
139    * \brief Add a default route to the static routing protocol to forward
140    *        packets out a particular interface
141    *
142    * Functionally equivalent to:
143    * route add 224.0.0.0 netmask 240.0.0.0 dev nd
144    * \param n node
145    * \param nd device of the node to add default route
146    */
147   void SetDefaultMulticastRoute (Ptr<Node> n, Ptr<NetDevice> nd);
148 
149   /**
150    * \brief Add a default route to the static routing protocol to forward
151    *        packets out a particular interface
152    *
153    * Functionally equivalent to:
154    * route add 224.0.0.0 netmask 240.0.0.0 dev nd
155    * \param n node
156    * \param ndName string with name previously associated to device using the
157    *        Object Name Service
158    */
159   void SetDefaultMulticastRoute (Ptr<Node> n, std::string ndName);
160 
161   /**
162    * \brief Add a default route to the static routing protocol to forward
163    *        packets out a particular interface
164    *
165    * Functionally equivalent to:
166    * route add 224.0.0.0 netmask 240.0.0.0 dev nd
167    * \param nName string with name previously associated to node using the
168    *        Object Name Service
169    * \param nd device of the node to add default route
170    */
171   void SetDefaultMulticastRoute (std::string nName, Ptr<NetDevice> nd);
172 
173   /**
174    * \brief Add a default route to the static routing protocol to forward
175    *        packets out a particular interface
176    *
177    * Functionally equivalent to:
178    * route add 224.0.0.0 netmask 240.0.0.0 dev nd
179    * \param nName string with name previously associated to node using the
180    *        Object Name Service
181    * \param ndName string with name previously associated to device using the
182    *        Object Name Service
183    */
184   void SetDefaultMulticastRoute (std::string nName, std::string ndName);
185 private:
186   /**
187    * \brief Assignment operator declared private and not implemented to disallow
188    * assignment and prevent the compiler from happily inserting its own.
189    * \returns
190    */
191   Ipv4StaticRoutingHelper &operator = (const Ipv4StaticRoutingHelper &);
192 };
193 
194 } // namespace ns3
195 
196 #endif /* IPV4_STATIC_ROUTING_HELPER_H */
197