A Discrete-Event Network Simulator
API
ipv4-global-routing-test-suite.cc
Go to the documentation of this file.
1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License version 2 as
4  * published by the Free Software Foundation;
5  *
6  * This program is distributed in the hope that it will be useful,
7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9  * GNU General Public License for more details.
10  *
11  * You should have received a copy of the GNU General Public License
12  * along with this program; if not, write to the Free Software
13  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
14  */
15 
16 #include "ns3/boolean.h"
17 #include "ns3/bridge-helper.h"
18 #include "ns3/config.h"
19 #include "ns3/inet-socket-address.h"
20 #include "ns3/internet-stack-helper.h"
21 #include "ns3/ipv4-address-helper.h"
22 #include "ns3/ipv4-global-routing-helper.h"
23 #include "ns3/ipv4-global-routing.h"
24 #include "ns3/ipv4-l3-protocol.h"
25 #include "ns3/ipv4-packet-info-tag.h"
26 #include "ns3/ipv4-routing-protocol.h"
27 #include "ns3/ipv4-routing-table-entry.h"
28 #include "ns3/ipv4-static-routing-helper.h"
29 #include "ns3/log.h"
30 #include "ns3/node-container.h"
31 #include "ns3/node.h"
32 #include "ns3/packet.h"
33 #include "ns3/pointer.h"
34 #include "ns3/simple-channel.h"
35 #include "ns3/simple-net-device-helper.h"
36 #include "ns3/simple-net-device.h"
37 #include "ns3/simulator.h"
38 #include "ns3/socket-factory.h"
39 #include "ns3/string.h"
40 #include "ns3/test.h"
41 #include "ns3/udp-socket-factory.h"
42 #include "ns3/uinteger.h"
43 
44 #include <vector>
45 
46 using namespace ns3;
47 
48 NS_LOG_COMPONENT_DEFINE("Ipv4GlobalRoutingTestSuite");
49 
50 // This test suite tests the operation of global routing on a few sample
51 // networks to ensure that routes are built correctly
52 //
53 // Link test:
54 // n0 <--------> n1 (point-to-point link)
55 // 10.1.1.1 10.1.1.2
56 // Expected routes:
57 // n0: route to 0.0.0.0 gw 10.1.1.2
58 // n1: route to 0.0.0.0 gw 10.1.1.1
59 // Note: These default routes to 0.0.0.0 are generated by the extension
60 // in the global route manager to install default routes via the
61 // peer node on a point-to-point link, when the node is on a
62 // stub link
63 //
64 // LAN test:
65 // n0 <--------> n1 (broadcast link on subnet 10.1.1.0/24)
66 // Expected routes:
67 // n0: route to 10.1.1.0 gw 0.0.0.0
68 // n1: route to 10.1.1.0 gw 0.0.0.0
69 // Two link test:
70 // n0 <--------> n1 <--------> n2 (point-to-point links)
71 // 10.1.1.1 10.1.1.2/ 10.1.2.2
72 // 10.1.2.1
73 // Expected routes:
74 // n0: route to 0.0.0.0 gw 10.1.1.2
75 // n1: route to 10.1.1.1 gw 10.1.1.1
76 // route to 10.1.2.2 gw 10.1.2.2
77 // route to 10.1.1.0 gw 10.1.1.1
78 // route to 10.1.2.0 gw 10.1.2.2
79 // n2: route to 0.0.0.0 gw 10.1.2.1
80 // Note: These default routes to 0.0.0.0 are generated by the extension
81 // in the global route manager to install default routes via the
82 // peer node on a point-to-point link, when the node is on a
83 // stub link
84 // Two LANs test:
85 // n0 <--------> n1 <--------> n2 (broadcast links)
86 // Expected routes:
87 // n0: route to 10.1.1.0 gw 0.0.0.0
88 // route to 0.0.0.0 gw 10.1.1.2
89 // n1: route to 10.1.1.1 gw 10.1.1.1
90 // route to 10.1.2.2 gw 10.1.2.2
91 // route to 10.1.1.0 gw 10.1.1.1
92 // route to 10.1.2.0 gw 10.1.2.2
93 // n2: route to 0.0.0.0 gw 10.1.2.1
94 // Bridge test:
95 // n0 <--------> n1 <---> Bridge-n2 <---> n3 <-------> n4 (broadcast links)
96 // 10.1.1.0/24 10.1.2.0/24 10.1.3.0/24
97 // Expected routes:
98 // n0: route to 10.1.1.0 gw 0.0.0.0
99 // route to 10.1.2.0 gw 10.1.1.2
100 // route to 10.1.3.0 gw 10.1.1.2
101 // n1: route to 10.1.1.0 gw 0.0.0.0
102 // route to 10.1.2.0 gw 0.0.0.0
103 // route to 10.1.3.0 gw 10.1.2.2
104 // n3: route to 10.1.1.0 gw 10.1.2.1
105 // route to 10.1.2.0 gw 0.0.0.0
106 // route to 10.1.3.0 gw 0.0.0.0
107 // n4: route to 10.1.3.0 gw 0.0.0.0
108 // route to 10.1.2.0 gw 10.1.3.1
109 // route to 10.1.1.0 gw 10.1.3.1
110 // Two Bridge test:
111 // n0 <------> n1 <---> Bridge-n2 <---> Bridge-n3 <---> n4 (broadcast links)
112 // 10.1.1.0/24 10.1.2.0/24
113 // Expected routes:
114 // n0: route to 10.1.1.0 gw 0.0.0.0
115 // route to 10.1.2.0 gw 10.1.1.2
116 // n4: route to 10.1.2.0 gw 0.0.0.0
117 // route to 10.1.1.0 gw 10.1.2.1
118 
124 class LinkTest : public TestCase
125 {
126  public:
127  void DoSetup() override;
128  void DoRun() override;
129  LinkTest();
130 
131  private:
132  NodeContainer m_nodes;
133 };
134 
135 LinkTest::LinkTest()
136  : TestCase("Global routing on point-to-point link")
137 {
138 }
139 
140 void
141 LinkTest::DoSetup()
142 {
143  m_nodes.Create(2);
144 
145  Ptr<SimpleChannel> channel = CreateObject<SimpleChannel>();
146  SimpleNetDeviceHelper simpleHelper;
147  simpleHelper.SetNetDevicePointToPointMode(true);
148  NetDeviceContainer net = simpleHelper.Install(m_nodes, channel);
149 
150  InternetStackHelper internet;
151  // By default, InternetStackHelper adds a static and global routing
152  // implementation. We just want the global for this test.
153  Ipv4GlobalRoutingHelper ipv4RoutingHelper;
154  internet.SetRoutingHelper(ipv4RoutingHelper);
155  internet.Install(m_nodes);
156 
157  Ipv4AddressHelper ipv4;
158  ipv4.SetBase("10.1.1.0", "255.255.255.252");
159  Ipv4InterfaceContainer i = ipv4.Assign(net);
160 }
161 
162 void
163 LinkTest::DoRun()
164 {
165  Ipv4GlobalRoutingHelper::PopulateRoutingTables();
166 
167  Ptr<Ipv4L3Protocol> ip0 = m_nodes.Get(0)->GetObject<Ipv4L3Protocol>();
168  NS_TEST_ASSERT_MSG_NE(ip0, nullptr, "Error-- no Ipv4 object");
169  Ptr<Ipv4L3Protocol> ip1 = m_nodes.Get(1)->GetObject<Ipv4L3Protocol>();
170  NS_TEST_ASSERT_MSG_NE(ip1, nullptr, "Error-- no Ipv4 object");
171  Ptr<Ipv4RoutingProtocol> routing0 = ip0->GetRoutingProtocol();
172  Ptr<Ipv4GlobalRouting> globalRouting0 = routing0->GetObject<Ipv4GlobalRouting>();
173  NS_TEST_ASSERT_MSG_NE(globalRouting0, nullptr, "Error-- no Ipv4GlobalRouting object");
174  Ptr<Ipv4RoutingProtocol> routing1 = ip1->GetRoutingProtocol();
175  Ptr<Ipv4GlobalRouting> globalRouting1 = routing1->GetObject<Ipv4GlobalRouting>();
176  NS_TEST_ASSERT_MSG_NE(globalRouting1, nullptr, "Error-- no Ipv4GlobalRouting object");
177 
178  // Test that the right number of routes found
179  uint32_t nRoutes0 = globalRouting0->GetNRoutes();
180  NS_LOG_DEBUG("LinkTest nRoutes0 " << nRoutes0);
181  NS_TEST_ASSERT_MSG_EQ(nRoutes0, 1, "Error-- not one route");
182  Ipv4RoutingTableEntry* route = globalRouting0->GetRoute(0);
183  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
184  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("0.0.0.0"), "Error-- wrong destination");
185  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.1.2"), "Error-- wrong gateway");
186 
187  // Test that the right number of routes found
188  uint32_t nRoutes1 = globalRouting1->GetNRoutes();
189  NS_TEST_ASSERT_MSG_EQ(nRoutes1, 1, "Error-- not one route");
190  NS_LOG_DEBUG("LinkTest nRoutes1 " << nRoutes1);
191  route = globalRouting1->GetRoute(0);
192  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
193  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("0.0.0.0"), "Error-- wrong destination");
194  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.1.1"), "Error-- wrong gateway");
195 
196  bool result = true;
197 
198  NS_TEST_ASSERT_MSG_EQ(result, true, "Message");
199  Simulator::Run();
200  Simulator::Destroy();
201 }
202 
208 class LanTest : public TestCase
209 {
210  public:
211  void DoSetup() override;
212  void DoRun() override;
213  LanTest();
214 
215  private:
216  NodeContainer m_nodes;
217 };
218 
219 LanTest::LanTest()
220  : TestCase("Global routing on broadcast link")
221 {
222 }
223 
224 void
225 LanTest::DoSetup()
226 {
227  m_nodes.Create(2);
228 
229  Ptr<SimpleChannel> channel = CreateObject<SimpleChannel>();
230  SimpleNetDeviceHelper simpleHelper;
231  NetDeviceContainer net = simpleHelper.Install(m_nodes, channel);
232 
233  InternetStackHelper internet;
234  // By default, InternetStackHelper adds a static and global routing
235  // implementation. We just want the global for this test.
236  Ipv4GlobalRoutingHelper ipv4RoutingHelper;
237  internet.SetRoutingHelper(ipv4RoutingHelper);
238  internet.Install(m_nodes);
239 
240  Ipv4AddressHelper ipv4;
241  ipv4.SetBase("10.1.1.0", "255.255.255.0");
242  Ipv4InterfaceContainer i = ipv4.Assign(net);
243 }
244 
245 void
246 LanTest::DoRun()
247 {
248  Ipv4GlobalRoutingHelper::PopulateRoutingTables();
249 
250  Ptr<Ipv4L3Protocol> ip0 = m_nodes.Get(0)->GetObject<Ipv4L3Protocol>();
251  NS_TEST_ASSERT_MSG_NE(ip0, nullptr, "Error-- no Ipv4 object");
252  Ptr<Ipv4L3Protocol> ip1 = m_nodes.Get(1)->GetObject<Ipv4L3Protocol>();
253  NS_TEST_ASSERT_MSG_NE(ip1, nullptr, "Error-- no Ipv4 object");
254  Ptr<Ipv4RoutingProtocol> routing0 = ip0->GetRoutingProtocol();
255  Ptr<Ipv4GlobalRouting> globalRouting0 = routing0->GetObject<Ipv4GlobalRouting>();
256  NS_TEST_ASSERT_MSG_NE(globalRouting0, nullptr, "Error-- no Ipv4GlobalRouting object");
257  Ptr<Ipv4RoutingProtocol> routing1 = ip1->GetRoutingProtocol();
258  Ptr<Ipv4GlobalRouting> globalRouting1 = routing1->GetObject<Ipv4GlobalRouting>();
259  NS_TEST_ASSERT_MSG_NE(globalRouting1, nullptr, "Error-- no Ipv4GlobalRouting object");
260 
261  // Test that the right number of routes found
262  uint32_t nRoutes0 = globalRouting0->GetNRoutes();
263  NS_LOG_DEBUG("LanTest nRoutes0 " << nRoutes0);
264  NS_TEST_ASSERT_MSG_EQ(nRoutes0, 1, "Error-- more than one entry");
265  for (uint32_t i = 0; i < globalRouting0->GetNRoutes(); i++)
266  {
267  Ipv4RoutingTableEntry* route = globalRouting0->GetRoute(i);
268  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
269  }
270 
271  // Test that the right number of routes found
272  uint32_t nRoutes1 = globalRouting1->GetNRoutes();
273  NS_LOG_DEBUG("LanTest nRoutes1 " << nRoutes1);
274  NS_TEST_ASSERT_MSG_EQ(nRoutes1, 1, "Error-- more than one entry");
275  for (uint32_t i = 0; i < globalRouting0->GetNRoutes(); i++)
276  {
277  Ipv4RoutingTableEntry* route = globalRouting1->GetRoute(i);
278  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
279  }
280 
281  Simulator::Destroy();
282 }
283 
289 class TwoLinkTest : public TestCase
290 {
291  public:
292  void DoSetup() override;
293  void DoRun() override;
294  TwoLinkTest();
295 
296  private:
297  NodeContainer m_nodes;
298 };
299 
300 TwoLinkTest::TwoLinkTest()
301  : TestCase("Global routing across two hops (point-to-point links)")
302 {
303 }
304 
305 void
306 TwoLinkTest::DoSetup()
307 {
308  m_nodes.Create(3);
309 
310  Ptr<SimpleChannel> channel = CreateObject<SimpleChannel>();
311  SimpleNetDeviceHelper simpleHelper;
312  simpleHelper.SetNetDevicePointToPointMode(true);
313  NetDeviceContainer net = simpleHelper.Install(m_nodes.Get(0), channel);
314  net.Add(simpleHelper.Install(m_nodes.Get(1), channel));
315 
316  Ptr<SimpleChannel> channel2 = CreateObject<SimpleChannel>();
317  SimpleNetDeviceHelper simpleHelper2;
318  simpleHelper2.SetNetDevicePointToPointMode(true);
319  NetDeviceContainer net2 = simpleHelper.Install(m_nodes.Get(1), channel2);
320  net2.Add(simpleHelper2.Install(m_nodes.Get(2), channel2));
321 
322  InternetStackHelper internet;
323  // By default, InternetStackHelper adds a static and global routing
324  // implementation. We just want the global for this test.
325  Ipv4GlobalRoutingHelper ipv4RoutingHelper;
326  internet.SetRoutingHelper(ipv4RoutingHelper);
327  internet.Install(m_nodes);
328 
329  Ipv4AddressHelper ipv4;
330  ipv4.SetBase("10.1.1.0", "255.255.255.252");
331  Ipv4InterfaceContainer i = ipv4.Assign(net);
332  ipv4.SetBase("10.1.2.0", "255.255.255.252");
333  Ipv4InterfaceContainer i2 = ipv4.Assign(net2);
334 }
335 
336 void
337 TwoLinkTest::DoRun()
338 {
339  Ipv4GlobalRoutingHelper::PopulateRoutingTables();
340 
341  Ptr<Ipv4L3Protocol> ip0 = m_nodes.Get(0)->GetObject<Ipv4L3Protocol>();
342  NS_TEST_ASSERT_MSG_NE(ip0, nullptr, "Error-- no Ipv4 object");
343  Ptr<Ipv4L3Protocol> ip1 = m_nodes.Get(1)->GetObject<Ipv4L3Protocol>();
344  NS_TEST_ASSERT_MSG_NE(ip1, nullptr, "Error-- no Ipv4 object");
345  Ptr<Ipv4L3Protocol> ip2 = m_nodes.Get(2)->GetObject<Ipv4L3Protocol>();
346  NS_TEST_ASSERT_MSG_NE(ip2, nullptr, "Error-- no Ipv4 object");
347  Ptr<Ipv4RoutingProtocol> routing0 = ip0->GetRoutingProtocol();
348  Ptr<Ipv4GlobalRouting> globalRouting0 = routing0->GetObject<Ipv4GlobalRouting>();
349  NS_TEST_ASSERT_MSG_NE(globalRouting0, nullptr, "Error-- no Ipv4GlobalRouting object");
350  Ptr<Ipv4RoutingProtocol> routing1 = ip1->GetRoutingProtocol();
351  Ptr<Ipv4GlobalRouting> globalRouting1 = routing1->GetObject<Ipv4GlobalRouting>();
352  NS_TEST_ASSERT_MSG_NE(globalRouting1, nullptr, "Error-- no Ipv4GlobalRouting object");
353  Ptr<Ipv4RoutingProtocol> routing2 = ip2->GetRoutingProtocol();
354  Ptr<Ipv4GlobalRouting> globalRouting2 = routing2->GetObject<Ipv4GlobalRouting>();
355  NS_TEST_ASSERT_MSG_NE(globalRouting2, nullptr, "Error-- no Ipv4GlobalRouting object");
356 
357  // node n0
358  // Test that the right number of routes found
359  uint32_t nRoutes0 = globalRouting0->GetNRoutes();
360  NS_LOG_DEBUG("TwoLinkTest nRoutes0 " << nRoutes0);
361  NS_TEST_ASSERT_MSG_EQ(nRoutes0, 1, "Error-- wrong number of links");
362 
363  Ipv4RoutingTableEntry* route = globalRouting0->GetRoute(0);
364  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
365  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("0.0.0.0"), "Error-- wrong destination");
366  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.1.2"), "Error-- wrong gateway");
367 
368  // node n1
369  // Test that the right number of routes found
370  uint32_t nRoutes1 = globalRouting1->GetNRoutes();
371  NS_LOG_DEBUG("TwoLinkTest nRoutes1 " << nRoutes1);
372  route = globalRouting1->GetRoute(0);
373  NS_LOG_DEBUG("TwoLinkTest entry dest " << route->GetDest() << " gw " << route->GetGateway());
374  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("10.1.1.1"), "Error-- wrong destination");
375  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.1.1"), "Error-- wrong gateway");
376  route = globalRouting1->GetRoute(1);
377  NS_LOG_DEBUG("TwoLinkTest entry dest " << route->GetDest() << " gw " << route->GetGateway());
378  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("10.1.2.2"), "Error-- wrong destination");
379  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.2.2"), "Error-- wrong gateway");
380  route = globalRouting1->GetRoute(2);
381  NS_LOG_DEBUG("TwoLinkTest entry dest " << route->GetDest() << " gw " << route->GetGateway());
382  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("10.1.1.0"), "Error-- wrong destination");
383  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.1.1"), "Error-- wrong gateway");
384  route = globalRouting1->GetRoute(3);
385  NS_LOG_DEBUG("TwoLinkTest entry dest " << route->GetDest() << " gw " << route->GetGateway());
386  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("10.1.2.0"), "Error-- wrong destination");
387  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.2.2"), "Error-- wrong gateway");
388 
389  // node n2
390  // Test that the right number of routes found
391  uint32_t nRoutes2 = globalRouting2->GetNRoutes();
392  NS_LOG_DEBUG("TwoLinkTest nRoutes2 " << nRoutes2);
393  NS_TEST_ASSERT_MSG_EQ(nRoutes2, 1, "Error-- wrong number of links");
394 
395  route = globalRouting2->GetRoute(0);
396  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
397  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("0.0.0.0"), "Error-- wrong destination");
398  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.2.1"), "Error-- wrong gateway");
399 
400  Simulator::Destroy();
401 }
402 
408 class TwoLanTest : public TestCase
409 {
410  public:
411  void DoSetup() override;
412  void DoRun() override;
413  TwoLanTest();
414 
415  private:
416  NodeContainer m_nodes;
417 };
418 
419 TwoLanTest::TwoLanTest()
420  : TestCase("Global routing across two hops (broadcast links)")
421 {
422 }
423 
424 void
425 TwoLanTest::DoSetup()
426 {
427  m_nodes.Create(3);
428 
429  Ptr<SimpleChannel> channel = CreateObject<SimpleChannel>();
430  SimpleNetDeviceHelper simpleHelper;
431  NetDeviceContainer net = simpleHelper.Install(m_nodes.Get(0), channel);
432  net.Add(simpleHelper.Install(m_nodes.Get(1), channel));
433 
434  Ptr<SimpleChannel> channel2 = CreateObject<SimpleChannel>();
435  SimpleNetDeviceHelper simpleHelper2;
436  NetDeviceContainer net2 = simpleHelper.Install(m_nodes.Get(1), channel2);
437  net2.Add(simpleHelper2.Install(m_nodes.Get(2), channel2));
438 
439  InternetStackHelper internet;
440  // By default, InternetStackHelper adds a static and global routing
441  // implementation. We just want the global for this test.
442  Ipv4GlobalRoutingHelper ipv4RoutingHelper;
443  internet.SetRoutingHelper(ipv4RoutingHelper);
444  internet.Install(m_nodes);
445 
446  Ipv4AddressHelper ipv4;
447  ipv4.SetBase("10.1.1.0", "255.255.255.0");
448  Ipv4InterfaceContainer i = ipv4.Assign(net);
449  ipv4.SetBase("10.1.2.0", "255.255.255.0");
450  Ipv4InterfaceContainer i2 = ipv4.Assign(net2);
451 }
452 
453 void
454 TwoLanTest::DoRun()
455 {
456  Ipv4GlobalRoutingHelper::PopulateRoutingTables();
457 
458  Ptr<Ipv4L3Protocol> ip0 = m_nodes.Get(0)->GetObject<Ipv4L3Protocol>();
459  NS_TEST_ASSERT_MSG_NE(ip0, nullptr, "Error-- no Ipv4 object");
460  Ptr<Ipv4L3Protocol> ip1 = m_nodes.Get(1)->GetObject<Ipv4L3Protocol>();
461  NS_TEST_ASSERT_MSG_NE(ip1, nullptr, "Error-- no Ipv4 object");
462  Ptr<Ipv4L3Protocol> ip2 = m_nodes.Get(2)->GetObject<Ipv4L3Protocol>();
463  NS_TEST_ASSERT_MSG_NE(ip2, nullptr, "Error-- no Ipv4 object");
464  Ptr<Ipv4RoutingProtocol> routing0 = ip0->GetRoutingProtocol();
465  Ptr<Ipv4GlobalRouting> globalRouting0 = routing0->GetObject<Ipv4GlobalRouting>();
466  NS_TEST_ASSERT_MSG_NE(globalRouting0, nullptr, "Error-- no Ipv4GlobalRouting object");
467  Ptr<Ipv4RoutingProtocol> routing1 = ip1->GetRoutingProtocol();
468  Ptr<Ipv4GlobalRouting> globalRouting1 = routing1->GetObject<Ipv4GlobalRouting>();
469  NS_TEST_ASSERT_MSG_NE(globalRouting1, nullptr, "Error-- no Ipv4GlobalRouting object");
470  Ptr<Ipv4RoutingProtocol> routing2 = ip2->GetRoutingProtocol();
471  Ptr<Ipv4GlobalRouting> globalRouting2 = routing2->GetObject<Ipv4GlobalRouting>();
472  NS_TEST_ASSERT_MSG_NE(globalRouting2, nullptr, "Error-- no Ipv4GlobalRouting object");
473 
474  // Test that the right number of routes found
475  uint32_t nRoutes0 = globalRouting0->GetNRoutes();
476  NS_LOG_DEBUG("TwoLanTest nRoutes0 " << nRoutes0);
477  NS_TEST_ASSERT_MSG_EQ(nRoutes0, 2, "Error-- not two entries");
478  Ipv4RoutingTableEntry* route = globalRouting0->GetRoute(0);
479  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
480  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("10.1.1.0"), "Error-- wrong destination");
481  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("0.0.0.0"), "Error-- wrong gateway");
482  route = globalRouting0->GetRoute(1);
483  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
484  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("10.1.2.0"), "Error-- wrong destination");
485  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("10.1.1.2"), "Error-- wrong gateway");
486 
487  // Test that the right number of routes found
488  uint32_t nRoutes1 = globalRouting1->GetNRoutes();
489  NS_LOG_DEBUG("TwoLanTest nRoutes1 " << nRoutes1);
490  NS_TEST_ASSERT_MSG_EQ(nRoutes1, 2, "Error-- not two entries");
491  route = globalRouting1->GetRoute(0);
492  NS_LOG_DEBUG("TwoLanTest entry dest " << route->GetDest() << " gw " << route->GetGateway());
493  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("10.1.1.0"), "Error-- wrong destination");
494  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("0.0.0.0"), "Error-- wrong gateway");
495  route = globalRouting1->GetRoute(1);
496  NS_LOG_DEBUG("TwoLanTest entry dest " << route->GetDest() << " gw " << route->GetGateway());
497  NS_TEST_ASSERT_MSG_EQ(route->GetDest(), Ipv4Address("10.1.2.0"), "Error-- wrong destination");
498  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(), Ipv4Address("0.0.0.0"), "Error-- wrong gateway");
499 
500  Simulator::Destroy();
501 }
502 
508 class BridgeTest : public TestCase
509 {
510  public:
511  void DoSetup() override;
512  void DoRun() override;
513  BridgeTest();
514 
515  private:
516  NodeContainer m_nodes;
517 };
518 
519 BridgeTest::BridgeTest()
520  : TestCase("Global routing across bridging topology (bug 2102)")
521 {
522 }
523 
524 void
525 BridgeTest::DoSetup()
526 {
527  m_nodes.Create(5);
528 
529  // connect node0 to node1
530  Ptr<SimpleChannel> channel = CreateObject<SimpleChannel>();
531  SimpleNetDeviceHelper simpleHelper;
532  NetDeviceContainer net = simpleHelper.Install(m_nodes.Get(0), channel);
533  net.Add(simpleHelper.Install(m_nodes.Get(1), channel));
534 
535  NetDeviceContainer bridgeFacingDevices;
536  NetDeviceContainer switchDevices;
537 
538  // connect node1 to node2 (switch)
539  Ptr<SimpleChannel> channel2 = CreateObject<SimpleChannel>();
540  SimpleNetDeviceHelper simpleHelper2;
541  NetDeviceContainer net2 = simpleHelper2.Install(m_nodes.Get(1), channel2);
542  net2.Add(simpleHelper2.Install(m_nodes.Get(2), channel2));
543  bridgeFacingDevices.Add(net2.Get(0));
544  switchDevices.Add(net2.Get(1));
545 
546  // connect node2 (switch) to node3
547  Ptr<SimpleChannel> channel3 = CreateObject<SimpleChannel>();
548  SimpleNetDeviceHelper simpleHelper3;
549  NetDeviceContainer net3 = simpleHelper3.Install(m_nodes.Get(2), channel3);
550  net3.Add(simpleHelper3.Install(m_nodes.Get(3), channel3));
551  bridgeFacingDevices.Add(net3.Get(1));
552  switchDevices.Add(net3.Get(0));
553 
554  // connect node3 to node4
555  Ptr<SimpleChannel> channel4 = CreateObject<SimpleChannel>();
556  SimpleNetDeviceHelper simpleHelper4;
557  NetDeviceContainer net4 = simpleHelper4.Install(m_nodes.Get(3), channel4);
558  net4.Add(simpleHelper4.Install(m_nodes.Get(4), channel4));
559 
560  Ptr<Node> switchNode = m_nodes.Get(2);
561  BridgeHelper bridge;
562  bridge.Install(switchNode, switchDevices);
563 
564  InternetStackHelper internet;
565  // By default, InternetStackHelper adds a static and global routing
566  // implementation. We just want the global for this test.
567  Ipv4GlobalRoutingHelper ipv4RoutingHelper;
568  internet.SetRoutingHelper(ipv4RoutingHelper);
569 
570  internet.Install(m_nodes.Get(0));
571  internet.Install(m_nodes.Get(1));
572  // m_nodes.Get (2) is bridge node
573  internet.Install(m_nodes.Get(3));
574  internet.Install(m_nodes.Get(4));
575 
576  Ipv4AddressHelper address;
577  address.SetBase("10.1.1.0", "255.255.255.0");
578  address.Assign(net);
579 
580  address.SetBase("10.1.2.0", "255.255.255.0");
581  address.Assign(bridgeFacingDevices);
582 
583  address.SetBase("10.1.3.0", "255.255.255.0");
584  address.Assign(net4);
585 }
586 
587 void
588 BridgeTest::DoRun()
589 {
590  Ipv4GlobalRoutingHelper::PopulateRoutingTables();
591 
592  Ptr<Ipv4L3Protocol> ip0 = m_nodes.Get(0)->GetObject<Ipv4L3Protocol>();
593  NS_TEST_ASSERT_MSG_NE(ip0, nullptr, "Error-- no Ipv4 object");
594  Ptr<Ipv4RoutingProtocol> routing0 = ip0->GetRoutingProtocol();
595  NS_TEST_ASSERT_MSG_NE(routing0, nullptr, "Error-- no Ipv4 routing protocol object");
596  Ptr<Ipv4GlobalRouting> globalRouting0 = routing0->GetObject<Ipv4GlobalRouting>();
597  NS_TEST_ASSERT_MSG_NE(globalRouting0, nullptr, "Error-- no Ipv4GlobalRouting object");
598 
599  Ptr<Ipv4L3Protocol> ip1 = m_nodes.Get(1)->GetObject<Ipv4L3Protocol>();
600  NS_TEST_ASSERT_MSG_NE(ip1, nullptr, "Error-- no Ipv4 object");
601  Ptr<Ipv4RoutingProtocol> routing1 = ip1->GetRoutingProtocol();
602  NS_TEST_ASSERT_MSG_NE(routing1, nullptr, "Error-- no Ipv4 routing protocol object");
603  Ptr<Ipv4GlobalRouting> globalRouting1 = routing1->GetObject<Ipv4GlobalRouting>();
604  NS_TEST_ASSERT_MSG_NE(globalRouting1, nullptr, "Error-- no Ipv4GlobalRouting object");
605 
606  // Skip to n4
607  Ptr<Ipv4L3Protocol> ip4 = m_nodes.Get(4)->GetObject<Ipv4L3Protocol>();
608  NS_TEST_ASSERT_MSG_NE(ip4, nullptr, "Error-- no Ipv4 object");
609  Ptr<Ipv4RoutingProtocol> routing4 = ip4->GetRoutingProtocol();
610  NS_TEST_ASSERT_MSG_NE(routing4, nullptr, "Error-- no Ipv4 routing protocol object");
611  Ptr<Ipv4GlobalRouting> globalRouting4 = routing4->GetObject<Ipv4GlobalRouting>();
612  NS_TEST_ASSERT_MSG_NE(globalRouting4, nullptr, "Error-- no Ipv4GlobalRouting object");
613 
614  Ipv4RoutingTableEntry* route = nullptr;
615  // n0
616  // Test that the right number of routes found
617  uint32_t nRoutes0 = globalRouting0->GetNRoutes();
618  NS_LOG_DEBUG("BridgeTest nRoutes0 " << nRoutes0);
619  NS_TEST_ASSERT_MSG_EQ(nRoutes0, 3, "Error-- not three entries");
620  for (uint32_t i = 0; i < globalRouting0->GetNRoutes(); i++)
621  {
622  route = globalRouting0->GetRoute(i);
623  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
624  }
625  // Spot check the last route
626  if (route)
627  {
628  NS_TEST_ASSERT_MSG_EQ(route->GetDest(),
629  Ipv4Address("10.1.3.0"),
630  "Error-- wrong destination");
631  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(),
632  Ipv4Address("10.1.1.2"),
633  "Error-- wrong gateway");
634  }
635 
636  // n1
637  // Test that the right number of routes found
638  route = nullptr;
639  uint32_t nRoutes1 = globalRouting1->GetNRoutes();
640  NS_LOG_DEBUG("BridgeTest nRoutes1 " << nRoutes1);
641  NS_TEST_ASSERT_MSG_EQ(nRoutes1, 3, "Error-- not three entries");
642  for (uint32_t i = 0; i < globalRouting1->GetNRoutes(); i++)
643  {
644  route = globalRouting1->GetRoute(i);
645  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
646  }
647  // Spot check the last route
648  if (route)
649  {
650  NS_TEST_ASSERT_MSG_EQ(route->GetDest(),
651  Ipv4Address("10.1.3.0"),
652  "Error-- wrong destination");
653  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(),
654  Ipv4Address("10.1.2.2"),
655  "Error-- wrong gateway");
656  }
657 
658  // skip n2 and n3, just verify n4
659  NS_LOG_DEBUG("BridgeTest skip print out of n2 and n3, go next to node n4");
660 
661  // n4
662  route = nullptr;
663  // Test that the right number of routes found
664  uint32_t nRoutes4 = globalRouting4->GetNRoutes();
665  NS_LOG_DEBUG("BridgeTest nRoutes4 " << nRoutes4);
666  NS_TEST_ASSERT_MSG_EQ(nRoutes4, 3, "Error-- not three entries");
667  for (uint32_t i = 0; i < globalRouting4->GetNRoutes(); i++)
668  {
669  route = globalRouting4->GetRoute(i);
670  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
671  }
672  // Spot check the last route
673  if (route)
674  {
675  NS_TEST_ASSERT_MSG_EQ(route->GetDest(),
676  Ipv4Address("10.1.1.0"),
677  "Error-- wrong destination");
678  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(),
679  Ipv4Address("10.1.3.1"),
680  "Error-- wrong gateway");
681  }
682 
683  Simulator::Destroy();
684 }
685 
691 class TwoBridgeTest : public TestCase
692 {
693  public:
694  void DoSetup() override;
695  void DoRun() override;
696  TwoBridgeTest();
697 
698  private:
699  NodeContainer m_nodes;
700 };
701 
702 TwoBridgeTest::TwoBridgeTest()
703  : TestCase("Global routing across two bridges")
704 {
705 }
706 
707 void
708 TwoBridgeTest::DoSetup()
709 {
710  m_nodes.Create(5);
711 
712  // connect node0 to node1
713  Ptr<SimpleChannel> channel = CreateObject<SimpleChannel>();
714  SimpleNetDeviceHelper simpleHelper;
715  NetDeviceContainer net = simpleHelper.Install(m_nodes.Get(0), channel);
716  net.Add(simpleHelper.Install(m_nodes.Get(1), channel));
717 
718  NetDeviceContainer bridgeFacingDevices;
719  NetDeviceContainer switchn2Devices;
720  NetDeviceContainer switchn3Devices;
721 
722  // connect node1 to node2 (switch)
723  Ptr<SimpleChannel> channel2 = CreateObject<SimpleChannel>();
724  SimpleNetDeviceHelper simpleHelper2;
725  NetDeviceContainer net2 = simpleHelper2.Install(m_nodes.Get(1), channel2);
726  net2.Add(simpleHelper2.Install(m_nodes.Get(2), channel2));
727  bridgeFacingDevices.Add(net2.Get(0));
728  switchn2Devices.Add(net2.Get(1));
729 
730  // connect node2 (switch) to node3
731  Ptr<SimpleChannel> channel3 = CreateObject<SimpleChannel>();
732  SimpleNetDeviceHelper simpleHelper3;
733  NetDeviceContainer net3 = simpleHelper3.Install(m_nodes.Get(2), channel3);
734  net3.Add(simpleHelper3.Install(m_nodes.Get(3), channel3));
735  switchn2Devices.Add(net3.Get(0));
736  switchn3Devices.Add(net3.Get(1));
737 
738  // connect node3 to node4
739  Ptr<SimpleChannel> channel4 = CreateObject<SimpleChannel>();
740  SimpleNetDeviceHelper simpleHelper4;
741  NetDeviceContainer net4 = simpleHelper4.Install(m_nodes.Get(3), channel4);
742  net4.Add(simpleHelper4.Install(m_nodes.Get(4), channel4));
743  switchn3Devices.Add(net4.Get(0));
744  bridgeFacingDevices.Add(net4.Get(1));
745 
746  Ptr<Node> switchn2Node = m_nodes.Get(2);
747  BridgeHelper bridgen2Helper;
748  bridgen2Helper.Install(switchn2Node, switchn2Devices);
749 
750  Ptr<Node> switchn3Node = m_nodes.Get(3);
751  BridgeHelper bridgen3Helper;
752  bridgen3Helper.Install(switchn3Node, switchn3Devices);
753 
754  InternetStackHelper internet;
755  // By default, InternetStackHelper adds a static and global routing
756  // implementation. We just want the global for this test.
757  Ipv4GlobalRoutingHelper ipv4RoutingHelper;
758  internet.SetRoutingHelper(ipv4RoutingHelper);
759 
760  internet.Install(m_nodes.Get(0));
761  internet.Install(m_nodes.Get(1));
762  // m_nodes.Get (2) is bridge node
763  // m_nodes.Get (3) is bridge node
764  internet.Install(m_nodes.Get(4));
765 
766  Ipv4AddressHelper address;
767  address.SetBase("10.1.1.0", "255.255.255.0");
768  address.Assign(net);
769 
770  address.SetBase("10.1.2.0", "255.255.255.0");
771  address.Assign(bridgeFacingDevices);
772 }
773 
774 void
775 TwoBridgeTest::DoRun()
776 {
777  Ipv4GlobalRoutingHelper::PopulateRoutingTables();
778 
779  Ptr<Ipv4L3Protocol> ip0 = m_nodes.Get(0)->GetObject<Ipv4L3Protocol>();
780  NS_TEST_ASSERT_MSG_NE(ip0, nullptr, "Error-- no Ipv4 object");
781  Ptr<Ipv4RoutingProtocol> routing0 = ip0->GetRoutingProtocol();
782  NS_TEST_ASSERT_MSG_NE(routing0, nullptr, "Error-- no Ipv4 routing protocol object");
783  Ptr<Ipv4GlobalRouting> globalRouting0 = routing0->GetObject<Ipv4GlobalRouting>();
784  NS_TEST_ASSERT_MSG_NE(globalRouting0, nullptr, "Error-- no Ipv4GlobalRouting object");
785 
786  // Skip to n4
787  Ptr<Ipv4L3Protocol> ip4 = m_nodes.Get(4)->GetObject<Ipv4L3Protocol>();
788  NS_TEST_ASSERT_MSG_NE(ip4, nullptr, "Error-- no Ipv4 object");
789  Ptr<Ipv4RoutingProtocol> routing4 = ip4->GetRoutingProtocol();
790  NS_TEST_ASSERT_MSG_NE(routing4, nullptr, "Error-- no Ipv4 routing protocol object");
791  Ptr<Ipv4GlobalRouting> globalRouting4 = routing4->GetObject<Ipv4GlobalRouting>();
792  NS_TEST_ASSERT_MSG_NE(globalRouting4, nullptr, "Error-- no Ipv4GlobalRouting object");
793 
794  Ipv4RoutingTableEntry* route = nullptr;
795  // n0
796  // Test that the right number of routes found
797  uint32_t nRoutes0 = globalRouting0->GetNRoutes();
798  NS_LOG_DEBUG("BridgeTest nRoutes0 " << nRoutes0);
799  NS_TEST_ASSERT_MSG_EQ(nRoutes0, 2, "Error-- not two entries");
800  for (uint32_t i = 0; i < globalRouting0->GetNRoutes(); i++)
801  {
802  route = globalRouting0->GetRoute(i);
803  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
804  }
805  // Spot check the last route
806  if (route)
807  {
808  NS_TEST_ASSERT_MSG_EQ(route->GetDest(),
809  Ipv4Address("10.1.2.0"),
810  "Error-- wrong destination");
811  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(),
812  Ipv4Address("10.1.1.2"),
813  "Error-- wrong gateway");
814  }
815  // skip n2 and n3, just verify n4
816  NS_LOG_DEBUG("BridgeTest skip print out of n1-n3, go next to node n4");
817 
818  // n4
819  // Test that the right number of routes found
820  route = nullptr;
821  uint32_t nRoutes4 = globalRouting4->GetNRoutes();
822  NS_LOG_DEBUG("BridgeTest nRoutes4 " << nRoutes4);
823  NS_TEST_ASSERT_MSG_EQ(nRoutes4, 2, "Error-- not two entries");
824  for (uint32_t i = 0; i < globalRouting4->GetNRoutes(); i++)
825  {
826  route = globalRouting4->GetRoute(i);
827  NS_LOG_DEBUG("entry dest " << route->GetDest() << " gw " << route->GetGateway());
828  }
829  // Spot check the last route
830  if (route)
831  {
832  NS_TEST_ASSERT_MSG_EQ(route->GetDest(),
833  Ipv4Address("10.1.1.0"),
834  "Error-- wrong destination");
835  NS_TEST_ASSERT_MSG_EQ(route->GetGateway(),
836  Ipv4Address("10.1.2.1"),
837  "Error-- wrong gateway");
838  }
839 
840  Simulator::Destroy();
841 }
842 
848 class Ipv4DynamicGlobalRoutingTestCase : public TestCase
849 {
850  public:
851  Ipv4DynamicGlobalRoutingTestCase();
852  ~Ipv4DynamicGlobalRoutingTestCase() override;
853 
854  private:
859  void SendData(uint8_t index);
860 
865  void ShutDownSock(uint8_t index);
866 
871  void HandleRead(Ptr<Socket> socket);
872  void DoRun() override;
873 
874  uint16_t m_count;
875  std::vector<std::pair<Ptr<Socket>, bool>> m_sendSocks;
876  DataRate m_dataRate;
877  uint16_t m_packetSize;
878  std::vector<uint8_t>
879  m_firstInterface;
880  std::vector<uint8_t>
881  m_secondInterface;
882 };
883 
884 // Add some help text to this case to describe what it is intended to test
885 Ipv4DynamicGlobalRoutingTestCase::Ipv4DynamicGlobalRoutingTestCase()
886  : TestCase("Dynamic global routing example"),
887  m_count(0)
888 {
889  m_firstInterface.resize(16);
890  m_secondInterface.resize(16);
891  m_dataRate = DataRate("2kbps");
892  m_packetSize = 50;
893 }
894 
895 Ipv4DynamicGlobalRoutingTestCase::~Ipv4DynamicGlobalRoutingTestCase()
896 {
897  for (auto iter = m_sendSocks.begin(); iter != m_sendSocks.end(); iter++)
898  {
899  if (iter->second)
900  {
901  iter->second = false;
902  iter->first->Close();
903  iter->first = nullptr;
904  }
905  }
906 }
907 
908 void
909 Ipv4DynamicGlobalRoutingTestCase::HandleRead(Ptr<Socket> socket)
910 {
911  Ptr<Packet> packet;
912  Address from;
913  while ((packet = socket->RecvFrom(from)))
914  {
915  if (packet->GetSize() == 0)
916  { // EOF
917  break;
918  }
919  Ipv4PacketInfoTag tag;
920  bool found;
921  found = packet->PeekPacketTag(tag);
922  uint8_t now = static_cast<uint8_t>(Simulator::Now().GetSeconds());
923  if (found)
924  {
925  if (tag.GetRecvIf() == 1)
926  {
927  m_firstInterface[now]++;
928  }
929  if (tag.GetRecvIf() == 2)
930  {
931  m_secondInterface[now]++;
932  }
933  m_count++;
934  }
935  }
936 }
937 
938 void
939 Ipv4DynamicGlobalRoutingTestCase::SendData(uint8_t index)
940 {
941  if (!m_sendSocks[index].second)
942  {
943  return;
944  }
945  Ptr<Packet> packet = Create<Packet>(m_packetSize);
946  m_sendSocks[index].first->Send(packet);
947 
948  Time tNext(MicroSeconds(m_packetSize * 8 * 1e6 / m_dataRate.GetBitRate()));
949  Simulator::Schedule(tNext, &Ipv4DynamicGlobalRoutingTestCase::SendData, this, index);
950 }
951 
952 void
953 Ipv4DynamicGlobalRoutingTestCase::ShutDownSock(uint8_t index)
954 {
955  m_sendSocks[index].second = false;
956  m_sendSocks[index].first->Close();
957  m_sendSocks[index].first = nullptr;
958 }
959 
960 // Test derived from examples/routing/dynamic-global-routing.cc
961 //
962 // Network topology
963 //
964 // n0
965 // \ p-p
966 // \ (shared csma/cd)
967 // n2 -------------------------n3
968 // / | |
969 // / p-p n4 n5 ---------- n6
970 // n1 p-p
971 // | |
972 // ----------------------------------------
973 // p-p
974 //
975 // Test that for node n6, the interface facing n5 receives packets at
976 // times (1-2), (4-6), (8-10), (11-12), (14-16) and the interface
977 // facing n1 receives packets at times (2-4), (6-8), (12-13)
978 //
979 void
980 Ipv4DynamicGlobalRoutingTestCase::DoRun()
981 {
982  // The below value configures the default behavior of global routing.
983  // By default, it is disabled. To respond to interface events, set to true
984  Config::SetDefault("ns3::Ipv4GlobalRouting::RespondToInterfaceEvents", BooleanValue(true));
985 
986  NodeContainer c;
987  c.Create(7);
988  NodeContainer n0n2 = NodeContainer(c.Get(0), c.Get(2));
989  NodeContainer n1n2 = NodeContainer(c.Get(1), c.Get(2));
990  NodeContainer n5n6 = NodeContainer(c.Get(5), c.Get(6));
991  NodeContainer n1n6 = NodeContainer(c.Get(1), c.Get(6));
992  NodeContainer n2345 = NodeContainer(c.Get(2), c.Get(3), c.Get(4), c.Get(5));
993 
994  InternetStackHelper internet;
995  internet.Install(c);
996 
997  // We create the channels first without any IP addressing information
998  SimpleNetDeviceHelper devHelper;
999 
1000  devHelper.SetNetDevicePointToPointMode(true);
1001  NetDeviceContainer d0d2 = devHelper.Install(n0n2);
1002  devHelper.SetNetDevicePointToPointMode(false);
1003 
1004  NetDeviceContainer d1d6 = devHelper.Install(n1n6);
1005  NetDeviceContainer d1d2 = devHelper.Install(n1n2);
1006  NetDeviceContainer d5d6 = devHelper.Install(n5n6);
1007  NetDeviceContainer d2345 = devHelper.Install(n2345);
1008 
1009  // Later, we add IP addresses.
1010  Ipv4AddressHelper ipv4;
1011  ipv4.SetBase("10.1.1.0", "255.255.255.0");
1012  ipv4.Assign(d0d2);
1013 
1014  ipv4.SetBase("10.1.2.0", "255.255.255.0");
1015  ipv4.Assign(d1d2);
1016 
1017  ipv4.SetBase("10.1.3.0", "255.255.255.0");
1018  Ipv4InterfaceContainer i5i6 = ipv4.Assign(d5d6);
1019 
1020  ipv4.SetBase("10.250.1.0", "255.255.255.0");
1021  ipv4.Assign(d2345);
1022 
1023  ipv4.SetBase("172.16.1.0", "255.255.255.0");
1024  Ipv4InterfaceContainer i1i6 = ipv4.Assign(d1d6);
1025 
1026  // Create router nodes, initialize routing database and set up the routing
1027  // tables in the nodes.
1028  Ipv4GlobalRoutingHelper::PopulateRoutingTables();
1029 
1030  // Create the applications to send UDP datagrams of size
1031  // 50 bytes at a rate of 2 Kb/s
1032  TypeId tid = TypeId::LookupByName("ns3::UdpSocketFactory");
1033  uint16_t port = 9; // Discard port (RFC 863)
1034 
1035  std::pair<Ptr<Socket>, bool> sendSockA;
1036  sendSockA.first = Socket::CreateSocket(c.Get(1), tid);
1037  sendSockA.first->Bind();
1038  sendSockA.first->Connect(InetSocketAddress(i5i6.GetAddress(1), port));
1039  sendSockA.second = true;
1040  m_sendSocks.push_back(sendSockA);
1041  Simulator::Schedule(Seconds(1.0), &Ipv4DynamicGlobalRoutingTestCase::SendData, this, 0);
1042  Simulator::Schedule(Seconds(10.0), &Ipv4DynamicGlobalRoutingTestCase::ShutDownSock, this, 0);
1043 
1044  std::pair<Ptr<Socket>, bool> sendSockB;
1045  sendSockB.first = Socket::CreateSocket(c.Get(1), tid);
1046  sendSockB.first->Bind();
1047  sendSockB.first->Connect(InetSocketAddress(i1i6.GetAddress(1), port));
1048  sendSockB.second = true;
1049  m_sendSocks.push_back(sendSockB);
1050  Simulator::Schedule(Seconds(11.0), &Ipv4DynamicGlobalRoutingTestCase::SendData, this, 1);
1051  Simulator::Schedule(Seconds(16.0), &Ipv4DynamicGlobalRoutingTestCase::ShutDownSock, this, 1);
1052 
1053  // Create an optional packet sink to receive these packets
1054  Ptr<Socket> sink2 = Socket::CreateSocket(c.Get(6), tid);
1055  sink2->Bind(Address(InetSocketAddress(Ipv4Address::GetAny(), port)));
1056  sink2->Listen();
1057  sink2->ShutdownSend();
1058 
1059  sink2->SetRecvPktInfo(true);
1060  sink2->SetRecvCallback(MakeCallback(&Ipv4DynamicGlobalRoutingTestCase::HandleRead, this));
1061 
1062  Ptr<Node> n1 = c.Get(1);
1063  Ptr<Ipv4> ipv41 = n1->GetObject<Ipv4>();
1064  // The first ifIndex is 0 for loopback, then the first p2p is numbered 1,
1065  // then the next p2p is numbered 2
1066  uint32_t ipv4ifIndex1 = 2;
1067 
1068  Simulator::Schedule(Seconds(2), &Ipv4::SetDown, ipv41, ipv4ifIndex1);
1069  Simulator::Schedule(Seconds(4), &Ipv4::SetUp, ipv41, ipv4ifIndex1);
1070 
1071  Ptr<Node> n6 = c.Get(6);
1072  Ptr<Ipv4> ipv46 = n6->GetObject<Ipv4>();
1073  // The first ifIndex is 0 for loopback, then the first p2p is numbered 1,
1074  // then the next p2p is numbered 2
1075  uint32_t ipv4ifIndex6 = 2;
1076  Simulator::Schedule(Seconds(6), &Ipv4::SetDown, ipv46, ipv4ifIndex6);
1077  Simulator::Schedule(Seconds(8), &Ipv4::SetUp, ipv46, ipv4ifIndex6);
1078 
1079  Simulator::Schedule(Seconds(12), &Ipv4::SetDown, ipv41, ipv4ifIndex1);
1080  Simulator::Schedule(Seconds(14), &Ipv4::SetUp, ipv41, ipv4ifIndex1);
1081 
1082  Simulator::Run();
1083 
1084  NS_TEST_ASSERT_MSG_EQ(m_count, 70, "Dynamic global routing did not deliver all packets");
1085  // Test that for node n6, the interface facing n5 receives packets at
1086  // times (1-2), (4-6), (8-10), (11-12), (14-16) and the interface
1087  // facing n1 receives packets at times (2-4), (6-8), (12-13)
1088  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[1],
1089  5,
1090  "Dynamic global routing did not deliver all packets "
1091  << int(m_firstInterface[1]));
1092  NS_TEST_ASSERT_MSG_EQ(m_secondInterface[2],
1093  5,
1094  "Dynamic global routing did not deliver all packets "
1095  << int(m_secondInterface[2]));
1096  NS_TEST_ASSERT_MSG_EQ(m_secondInterface[3],
1097  5,
1098  "Dynamic global routing did not deliver all packets "
1099  << int(m_secondInterface[3]));
1100  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[4],
1101  5,
1102  "Dynamic global routing did not deliver all packets "
1103  << int(m_firstInterface[4]));
1104  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[5],
1105  5,
1106  "Dynamic global routing did not deliver all packets "
1107  << int(m_firstInterface[5]));
1108  NS_TEST_ASSERT_MSG_EQ(m_secondInterface[6],
1109  5,
1110  "Dynamic global routing did not deliver all packets "
1111  << int(m_secondInterface[6]));
1112  NS_TEST_ASSERT_MSG_EQ(m_secondInterface[7],
1113  5,
1114  "Dynamic global routing did not deliver all packets "
1115  << int(m_secondInterface[7]));
1116  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[8],
1117  5,
1118  "Dynamic global routing did not deliver all packets "
1119  << int(m_firstInterface[8]));
1120  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[9],
1121  5,
1122  "Dynamic global routing did not deliver all packets "
1123  << int(m_firstInterface[9]));
1124  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[10],
1125  0,
1126  "Dynamic global routing did not deliver all packets "
1127  << int(m_firstInterface[10]));
1128  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[11],
1129  5,
1130  "Dynamic global routing did not deliver all packets "
1131  << int(m_firstInterface[11]));
1132  NS_TEST_ASSERT_MSG_EQ(m_secondInterface[12],
1133  5,
1134  "Dynamic global routing did not deliver all packets "
1135  << int(m_secondInterface[12]));
1136  NS_TEST_ASSERT_MSG_EQ(m_secondInterface[13],
1137  5,
1138  "Dynamic global routing did not deliver all packets "
1139  << int(m_secondInterface[13]));
1140  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[14],
1141  5,
1142  "Dynamic global routing did not deliver all packets "
1143  << int(m_firstInterface[14]));
1144  NS_TEST_ASSERT_MSG_EQ(m_firstInterface[15],
1145  5,
1146  "Dynamic global routing did not deliver all packets "
1147  << int(m_firstInterface[15]));
1148  Simulator::Destroy();
1149 }
1150 
1156 class Ipv4GlobalRoutingSlash32TestCase : public TestCase
1157 {
1158  public:
1159  Ipv4GlobalRoutingSlash32TestCase();
1160  ~Ipv4GlobalRoutingSlash32TestCase() override;
1161 
1162  Ptr<Packet> m_receivedPacket;
1163 
1168  void ReceivePkt(Ptr<Socket> socket);
1174  void DoSendData(Ptr<Socket> socket, std::string to);
1180  void SendData(Ptr<Socket> socket, std::string to);
1181 
1182  private:
1183  void DoRun() override;
1184 };
1185 
1186 // Add some help text to this case to describe what it is intended to test
1187 Ipv4GlobalRoutingSlash32TestCase::Ipv4GlobalRoutingSlash32TestCase()
1188  : TestCase("Slash 32 global routing example")
1189 {
1190 }
1191 
1192 Ipv4GlobalRoutingSlash32TestCase::~Ipv4GlobalRoutingSlash32TestCase()
1193 {
1194 }
1195 
1196 void
1197 Ipv4GlobalRoutingSlash32TestCase::ReceivePkt(Ptr<Socket> socket)
1198 {
1199  uint32_t availableData [[maybe_unused]] = socket->GetRxAvailable();
1200  m_receivedPacket = socket->Recv(std::numeric_limits<uint32_t>::max(), 0);
1201  NS_TEST_ASSERT_MSG_EQ(availableData,
1202  m_receivedPacket->GetSize(),
1203  "Received packet size is not equal to Rx buffer size");
1204 }
1205 
1206 void
1207 Ipv4GlobalRoutingSlash32TestCase::DoSendData(Ptr<Socket> socket, std::string to)
1208 {
1209  Address realTo = InetSocketAddress(Ipv4Address(to.c_str()), 1234);
1210  NS_TEST_EXPECT_MSG_EQ(socket->SendTo(Create<Packet>(123), 0, realTo), 123, "100");
1211 }
1212 
1213 void
1214 Ipv4GlobalRoutingSlash32TestCase::SendData(Ptr<Socket> socket, std::string to)
1215 {
1216  m_receivedPacket = Create<Packet>();
1217  Simulator::ScheduleWithContext(socket->GetNode()->GetId(),
1218  Seconds(60),
1219  &Ipv4GlobalRoutingSlash32TestCase::DoSendData,
1220  this,
1221  socket,
1222  to);
1223  Simulator::Stop(Seconds(66));
1224  Simulator::Run();
1225 }
1226 
1227 // Test program for this 3-router scenario, using global routing
1228 //
1229 // (a.a.a.a/32)A<--x.x.x.0/30-->B<--y.y.y.0/30-->C(c.c.c.c/32)
1230 //
1231 void
1232 Ipv4GlobalRoutingSlash32TestCase::DoRun()
1233 {
1234  Ptr<Node> nA = CreateObject<Node>();
1235  Ptr<Node> nB = CreateObject<Node>();
1236  Ptr<Node> nC = CreateObject<Node>();
1237 
1238  NodeContainer c = NodeContainer(nA, nB, nC);
1239 
1240  InternetStackHelper internet;
1241  internet.Install(c);
1242 
1243  // simple links
1244  NodeContainer nAnB = NodeContainer(nA, nB);
1245  NodeContainer nBnC = NodeContainer(nB, nC);
1246 
1247  SimpleNetDeviceHelper devHelper;
1248 
1249  Ptr<SimpleNetDevice> deviceA = CreateObject<SimpleNetDevice>();
1250  deviceA->SetAddress(Mac48Address::Allocate());
1251  nA->AddDevice(deviceA);
1252 
1253  NetDeviceContainer dAdB = devHelper.Install(nAnB);
1254  NetDeviceContainer dBdC = devHelper.Install(nBnC);
1255 
1256  Ptr<SimpleNetDevice> deviceC = CreateObject<SimpleNetDevice>();
1257  deviceC->SetAddress(Mac48Address::Allocate());
1258  nC->AddDevice(deviceC);
1259 
1260  // Later, we add IP addresses.
1261  Ipv4AddressHelper ipv4;
1262  ipv4.SetBase("10.1.1.0", "255.255.255.252");
1263  Ipv4InterfaceContainer iAiB = ipv4.Assign(dAdB);
1264 
1265  ipv4.SetBase("10.1.1.4", "255.255.255.252");
1266  Ipv4InterfaceContainer iBiC = ipv4.Assign(dBdC);
1267 
1268  Ptr<Ipv4> ipv4A = nA->GetObject<Ipv4>();
1269  Ptr<Ipv4> ipv4B = nB->GetObject<Ipv4>();
1270  Ptr<Ipv4> ipv4C = nC->GetObject<Ipv4>();
1271 
1272  int32_t ifIndexA = ipv4A->AddInterface(deviceA);
1273  int32_t ifIndexC = ipv4C->AddInterface(deviceC);
1274 
1275  Ipv4InterfaceAddress ifInAddrA =
1276  Ipv4InterfaceAddress(Ipv4Address("172.16.1.1"), Ipv4Mask("/32"));
1277  ipv4A->AddAddress(ifIndexA, ifInAddrA);
1278  ipv4A->SetMetric(ifIndexA, 1);
1279  ipv4A->SetUp(ifIndexA);
1280 
1281  Ipv4InterfaceAddress ifInAddrC =
1282  Ipv4InterfaceAddress(Ipv4Address("192.168.1.1"), Ipv4Mask("/32"));
1283  ipv4C->AddAddress(ifIndexC, ifInAddrC);
1284  ipv4C->SetMetric(ifIndexC, 1);
1285  ipv4C->SetUp(ifIndexC);
1286 
1287  // Create router nodes, initialize routing database and set up the routing
1288  // tables in the nodes.
1289  Ipv4GlobalRoutingHelper::PopulateRoutingTables();
1290 
1291  // Create the UDP sockets
1292  Ptr<SocketFactory> rxSocketFactory = nC->GetObject<UdpSocketFactory>();
1293  Ptr<Socket> rxSocket = rxSocketFactory->CreateSocket();
1294  NS_TEST_EXPECT_MSG_EQ(rxSocket->Bind(InetSocketAddress(Ipv4Address("192.168.1.1"), 1234)),
1295  0,
1296  "trivial");
1297  rxSocket->SetRecvCallback(MakeCallback(&Ipv4GlobalRoutingSlash32TestCase::ReceivePkt, this));
1298 
1299  Ptr<SocketFactory> txSocketFactory = nA->GetObject<UdpSocketFactory>();
1300  Ptr<Socket> txSocket = txSocketFactory->CreateSocket();
1301  txSocket->SetAllowBroadcast(true);
1302 
1303  // ------ Now the tests ------------
1304 
1305  // Unicast test
1306  SendData(txSocket, "192.168.1.1");
1307  NS_TEST_EXPECT_MSG_EQ(m_receivedPacket->GetSize(),
1308  123,
1309  "Static routing with /32 did not deliver all packets.");
1310 
1311  Simulator::Destroy();
1312 }
1313 
1319 class Ipv4GlobalRoutingTestSuite : public TestSuite
1320 {
1321  public:
1322  Ipv4GlobalRoutingTestSuite();
1323 };
1324 
1325 Ipv4GlobalRoutingTestSuite::Ipv4GlobalRoutingTestSuite()
1326  : TestSuite("ipv4-global-routing", UNIT)
1327 {
1328  AddTestCase(new LinkTest, TestCase::QUICK);
1329  AddTestCase(new LanTest, TestCase::QUICK);
1330  AddTestCase(new TwoLinkTest, TestCase::QUICK);
1331  AddTestCase(new TwoLanTest, TestCase::QUICK);
1332  AddTestCase(new BridgeTest, TestCase::QUICK);
1333  AddTestCase(new TwoBridgeTest, TestCase::QUICK);
1334  AddTestCase(new Ipv4DynamicGlobalRoutingTestCase, TestCase::QUICK);
1335  AddTestCase(new Ipv4GlobalRoutingSlash32TestCase, TestCase::QUICK);
1336 }
1337 
1338 static Ipv4GlobalRoutingTestSuite
1339  g_globalRoutingTestSuite;
max
#define max(a, b)
Definition: 80211b.c:42
n1n2
NodeContainer n1n2
Nodecontainer n1 + n2.
Definition: adaptive-red-tests.cc:90
n0n2
NodeContainer n0n2
Nodecontainer n0 + n2.
Definition: adaptive-red-tests.cc:89
BridgeTest
IPv4 GlobalRouting Bridge test.
Definition: ipv4-global-routing-test-suite.cc:509
BridgeTest::DoSetup
void DoSetup() override
Implementation to do any local setup required for this TestCase.
Definition: ipv4-global-routing-test-suite.cc:525
BridgeTest::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: ipv4-global-routing-test-suite.cc:588
BridgeTest::m_nodes
NodeContainer m_nodes
Nodes used in the test.
Definition: ipv4-global-routing-test-suite.cc:516
Ipv4DynamicGlobalRoutingTestCase::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: ipv4-global-routing-test-suite.cc:980
Ipv4DynamicGlobalRoutingTestCase::m_secondInterface
std::vector< uint8_t > m_secondInterface
Packets received on the 2nd interface at a given time.
Definition: ipv4-global-routing-test-suite.cc:881
Ipv4DynamicGlobalRoutingTestCase::HandleRead
void HandleRead(Ptr< Socket > socket)
Handle an incoming packet.
Definition: ipv4-global-routing-test-suite.cc:909
Ipv4DynamicGlobalRoutingTestCase::m_count
uint16_t m_count
Number of packets received.
Definition: ipv4-global-routing-test-suite.cc:874
Ipv4DynamicGlobalRoutingTestCase::m_sendSocks
std::vector< std::pair< Ptr< Socket >, bool > > m_sendSocks
Sending sockets.
Definition: ipv4-global-routing-test-suite.cc:875
Ipv4DynamicGlobalRoutingTestCase::m_firstInterface
std::vector< uint8_t > m_firstInterface
Packets received on the 1st interface at a given time.
Definition: ipv4-global-routing-test-suite.cc:879
Ipv4DynamicGlobalRoutingTestCase::ShutDownSock
void ShutDownSock(uint8_t index)
Shutdown a socket.
Definition: ipv4-global-routing-test-suite.cc:953
Ipv4DynamicGlobalRoutingTestCase::SendData
void SendData(uint8_t index)
Send some data.
Definition: ipv4-global-routing-test-suite.cc:939
Ipv4GlobalRoutingSlash32TestCase
IPv4 Dynamic GlobalRouting /32 test.
Definition: ipv4-global-routing-test-suite.cc:1157
Ipv4GlobalRoutingSlash32TestCase::ReceivePkt
void ReceivePkt(Ptr< Socket > socket)
Receive a packet.
Definition: ipv4-global-routing-test-suite.cc:1197
Ipv4GlobalRoutingSlash32TestCase::SendData
void SendData(Ptr< Socket > socket, std::string to)
Send a packet.
Definition: ipv4-global-routing-test-suite.cc:1214
Ipv4GlobalRoutingSlash32TestCase::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: ipv4-global-routing-test-suite.cc:1232
Ipv4GlobalRoutingSlash32TestCase::DoSendData
void DoSendData(Ptr< Socket > socket, std::string to)
Send a packet.
Definition: ipv4-global-routing-test-suite.cc:1207
Ipv4GlobalRoutingSlash32TestCase::m_receivedPacket
Ptr< Packet > m_receivedPacket
number of received packets
Definition: ipv4-global-routing-test-suite.cc:1162
LanTest
IPv4 GlobalRouting LAN test.
Definition: ipv4-global-routing-test-suite.cc:209
LanTest::DoSetup
void DoSetup() override
Implementation to do any local setup required for this TestCase.
Definition: ipv4-global-routing-test-suite.cc:225
LanTest::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: ipv4-global-routing-test-suite.cc:246
LanTest::m_nodes
NodeContainer m_nodes
Nodes used in the test.
Definition: ipv4-global-routing-test-suite.cc:216
TwoBridgeTest
IPv4 GlobalRouting Two bridges test.
Definition: ipv4-global-routing-test-suite.cc:692
TwoBridgeTest::DoSetup
void DoSetup() override
Implementation to do any local setup required for this TestCase.
Definition: ipv4-global-routing-test-suite.cc:708
TwoBridgeTest::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: ipv4-global-routing-test-suite.cc:775
TwoBridgeTest::m_nodes
NodeContainer m_nodes
Nodes used in the test.
Definition: ipv4-global-routing-test-suite.cc:699
TwoLanTest
IPv4 GlobalRouting Two LAN test.
Definition: ipv4-global-routing-test-suite.cc:409
TwoLanTest::m_nodes
NodeContainer m_nodes
Nodes used in the test.
Definition: ipv4-global-routing-test-suite.cc:416
TwoLanTest::DoRun
void DoRun() override
Implementation to actually run this TestCase.
Definition: ipv4-global-routing-test-suite.cc:454
TwoLanTest::DoSetup
void DoSetup() override
Implementation to do any local setup required for this TestCase.
Definition: ipv4-global-routing-test-suite.cc:425
ns3::Address
a polymophic address class
Definition: address.h:101
ns3::BridgeHelper
Add capability to bridge multiple LAN segments (IEEE 802.1D bridging)
Definition: bridge-helper.h:45
ns3::BridgeHelper::Install
NetDeviceContainer Install(Ptr< Node > node, NetDeviceContainer c)
This method creates an ns3::BridgeNetDevice with the attributes configured by BridgeHelper::SetDevice...
Definition: bridge-helper.cc:50
ns3::DataRate
Class for representing data rates.
Definition: data-rate.h:89
ns3::DataRate::GetBitRate
uint64_t GetBitRate() const
Get the underlying bitrate.
Definition: data-rate.cc:305
ns3::InetSocketAddress
an Inet address class
Definition: inet-socket-address.h:42
ns3::InternetStackHelper
aggregate IP/TCP/UDP functionality to existing Nodes.
Definition: internet-stack-helper.h:92
ns3::Ipv4AddressHelper
A helper class to make life easier while doing simple IPv4 address assignment in scripts.
Definition: ipv4-address-helper.h:49
ns3::Ipv4Address
Ipv4 addresses are stored in host order in this class.
Definition: ipv4-address.h:42
ns3::Ipv4GlobalRoutingHelper
Helper class that adds ns3::Ipv4GlobalRouting objects.
Definition: ipv4-global-routing-helper.h:35
ns3::Ipv4GlobalRouting
Global routing protocol for IPv4 stacks.
Definition: ipv4-global-routing.h:73
ns3::Ipv4
Access to the IPv4 forwarding table, interfaces, and configuration.
Definition: ipv4.h:80
ns3::Ipv4InterfaceAddress
a class to store IPv4 address information on an interface
Definition: ipv4-interface-address.h:45
ns3::Ipv4InterfaceContainer
holds a vector of std::pair of Ptr<Ipv4> and interface index.
Definition: ipv4-interface-container.h:56
ns3::Ipv4InterfaceContainer::GetAddress
Ipv4Address GetAddress(uint32_t i, uint32_t j=0) const
Definition: ipv4-interface-container.cc:60
ns3::Ipv4L3Protocol
Implement the IPv4 layer.
Definition: ipv4-l3-protocol.h:84
ns3::Ipv4Mask
a class to represent an Ipv4 address mask
Definition: ipv4-address.h:257
ns3::Ipv4PacketInfoTag
This class implements Linux struct pktinfo in order to deliver ancillary information to the socket in...
Definition: ipv4-packet-info-tag.h:49
ns3::Ipv4PacketInfoTag::GetRecvIf
uint32_t GetRecvIf() const
Get the tag's receiving interface.
Definition: ipv4-packet-info-tag.cc:62
ns3::Ipv4RoutingTableEntry
A record of an IPv4 routing table entry for Ipv4GlobalRouting and Ipv4StaticRouting.
Definition: ipv4-routing-table-entry.h:38
ns3::Ipv4RoutingTableEntry::GetDest
Ipv4Address GetDest() const
Definition: ipv4-routing-table-entry.cc:106
ns3::Ipv4RoutingTableEntry::GetGateway
Ipv4Address GetGateway() const
Definition: ipv4-routing-table-entry.cc:148
ns3::NetDeviceContainer
holds a vector of ns3::NetDevice pointers
Definition: net-device-container.h:43
ns3::NetDeviceContainer::Add
void Add(NetDeviceContainer other)
Append the contents of another NetDeviceContainer to the end of this container.
Definition: net-device-container.cc:73
ns3::NetDeviceContainer::Get
Ptr< NetDevice > Get(uint32_t i) const
Get the Ptr<NetDevice> stored in this container at a given index.
Definition: net-device-container.cc:67
ns3::NodeContainer
keep track of a set of node pointers.
Definition: node-container.h:40
ns3::NodeContainer::Create
void Create(uint32_t n)
Create n nodes and append pointers to them to the end of this NodeContainer.
Definition: node-container.cc:84
ns3::NodeContainer::Get
Ptr< Node > Get(uint32_t i) const
Get the Ptr<Node> stored in this container at a given index.
Definition: node-container.cc:78
ns3::Node::AddDevice
uint32_t AddDevice(Ptr< NetDevice > device)
Associate a NetDevice to this node.
Definition: node.cc:138
ns3::Node::GetId
uint32_t GetId() const
Definition: node.cc:117
ns3::Object::GetObject
Ptr< T > GetObject() const
Get a pointer to the requested aggregated Object.
Definition: object.h:471
ns3::Packet::GetSize
uint32_t GetSize() const
Returns the the size in bytes of the packet (including the zero-filled initial payload).
Definition: packet.h:861
ns3::Packet::PeekPacketTag
bool PeekPacketTag(Tag &tag) const
Search a matching tag and call Tag::Deserialize if it is found.
Definition: packet.cc:983
ns3::Ptr
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:77
ns3::SimpleNetDeviceHelper
build a set of SimpleNetDevice objects
Definition: simple-net-device-helper.h:39
ns3::SimpleNetDeviceHelper::SetNetDevicePointToPointMode
void SetNetDevicePointToPointMode(bool pointToPointMode)
SimpleNetDevice is Broadcast capable and ARP needing.
Definition: simple-net-device-helper.cc:65
ns3::SimpleNetDeviceHelper::Install
NetDeviceContainer Install(Ptr< Node > node) const
This method creates an ns3::SimpleChannel with the attributes configured by SimpleNetDeviceHelper::Se...
Definition: simple-net-device-helper.cc:77
ns3::Socket::SetRecvPktInfo
void SetRecvPktInfo(bool flag)
Enable/Disable receive packet information to socket.
Definition: socket.cc:354
ns3::Socket::GetRxAvailable
virtual uint32_t GetRxAvailable() const =0
Return number of bytes which can be returned from one or multiple calls to Recv.
ns3::Socket::SetRecvCallback
void SetRecvCallback(Callback< void, Ptr< Socket >> receivedData)
Notify application when new data is available to be read.
Definition: socket.cc:128
ns3::Socket::ShutdownSend
virtual int ShutdownSend()=0
ns3::Socket::Recv
virtual Ptr< Packet > Recv(uint32_t maxSize, uint32_t flags)=0
Read data from the socket.
ns3::Socket::GetNode
virtual Ptr< Node > GetNode() const =0
Return the node this socket is associated with.
ns3::Socket::Bind
virtual int Bind(const Address &address)=0
Allocate a local endpoint for this socket.
ns3::Socket::Listen
virtual int Listen()=0
Listen for incoming connections.
ns3::Socket::RecvFrom
virtual Ptr< Packet > RecvFrom(uint32_t maxSize, uint32_t flags, Address &fromAddress)=0
Read a single packet from the socket and retrieve the sender address.
ns3::Socket::SendTo
virtual int SendTo(Ptr< Packet > p, uint32_t flags, const Address &toAddress)=0
Send data to a specified peer.
ns3::TestCase
encapsulates test code
Definition: test.h:1060
ns3::TestCase::AddTestCase
void AddTestCase(TestCase *testCase, TestDuration duration=QUICK)
Add an individual child TestCase to this test suite.
Definition: test.cc:301
ns3::TestSuite
A suite of tests to run.
Definition: test.h:1256
ns3::Time
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:105
ns3::Time::GetSeconds
double GetSeconds() const
Get an approximation of the time stored in this instance in the indicated unit.
Definition: nstime.h:403
ns3::TypeId
a unique identifier for an interface.
Definition: type-id.h:59
ns3::UdpSocketFactory
API to create UDP socket instances.
Definition: udp-socket-factory.h:42
port
uint16_t port
Definition: dsdv-manet.cc:44
ns3::Config::SetDefault
void SetDefault(std::string name, const AttributeValue &value)
Definition: config.cc:890
NS_LOG_COMPONENT_DEFINE
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
NS_LOG_DEBUG
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
Definition: log.h:268
ns3::TracedValueCallback::DataRate
void(* DataRate)(DataRate oldValue, DataRate newValue)
TracedValue callback signature for DataRate.
Definition: data-rate.h:327
ns3::Now
Time Now()
create an ns3::Time instance which contains the current simulation time.
Definition: simulator.cc:305
NS_TEST_ASSERT_MSG_EQ
#define NS_TEST_ASSERT_MSG_EQ(actual, limit, msg)
Test that an actual and expected (limit) value are equal and report and abort if not.
Definition: test.h:144
NS_TEST_EXPECT_MSG_EQ
#define NS_TEST_EXPECT_MSG_EQ(actual, limit, msg)
Test that an actual and expected (limit) value are equal and report if not.
Definition: test.h:251
NS_TEST_ASSERT_MSG_NE
#define NS_TEST_ASSERT_MSG_NE(actual, limit, msg)
Test that an actual and expected (limit) value are not equal and report and abort if not.
Definition: test.h:564
ns3::MicroSeconds
Time MicroSeconds(uint64_t value)
Construct a Time in the indicated unit.
Definition: nstime.h:1350
ns3::Seconds
Time Seconds(double value)
Construct a Time in the indicated unit.
Definition: nstime.h:1326
g_globalRoutingTestSuite
static Ipv4GlobalRoutingTestSuite g_globalRoutingTestSuite
Static variable for test initialization.
Definition: ipv4-global-routing-test-suite.cc:1339
first.address
address
Definition: first.py:47
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.
ns3::MakeCallback
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:704
second
Definition: second.py:1
third.channel
channel
Definition: third.py:88
SetUp
void SetUp(char *deviceName)
Definition: tap-device-creator.cc:140