A Discrete-Event Network Simulator
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olsr-header.cc
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2007 INESC Porto
3
*
4
* SPDX-License-Identifier: GPL-2.0-only
5
*
6
* Author: Gustavo J. A. M. Carneiro <gjc@inescporto.pt>
7
*/
8
9
#include "
olsr-header.h
"
10
11
#include "ns3/assert.h"
12
#include "ns3/log.h"
13
14
#include <cmath>
15
16
#define IPV4_ADDRESS_SIZE 4
17
#define OLSR_MSG_HEADER_SIZE 12
18
#define OLSR_PKT_HEADER_SIZE 4
19
20
namespace
ns3
21
{
22
23
NS_LOG_COMPONENT_DEFINE
(
"OlsrHeader"
);
24
25
namespace
olsr
26
{
27
28
/// Scaling factor used in RFC 3626.
29
#define OLSR_C 0.0625
30
31
///
32
/// \brief Converts a decimal number of seconds to the mantissa/exponent format.
33
///
34
/// \param seconds decimal number of seconds we want to convert.
35
/// \return the number of seconds in mantissa/exponent format.
36
///
37
uint8_t
38
SecondsToEmf
(
double
seconds)
39
{
40
int
a;
41
int
b = 0;
42
43
NS_ASSERT_MSG
(seconds >=
OLSR_C
,
"SecondsToEmf - Can not convert a value less than OLSR_C"
);
44
45
// find the largest integer 'b' such that: T/C >= 2^b
46
for
(b = 1; (seconds /
OLSR_C
) >= (1 << b); ++b)
47
{
48
}
49
NS_ASSERT
((seconds /
OLSR_C
) < (1 << b));
50
b--;
51
NS_ASSERT
((seconds /
OLSR_C
) >= (1 << b));
52
53
// compute the expression 16*(T/(C*(2^b))-1), which may not be a integer
54
double
tmp = 16 * (seconds / (
OLSR_C
* (1 << b)) - 1);
55
56
// round it up. This results in the value for 'a'
57
a = (int)std::ceil(tmp - 0.5);
58
59
// if 'a' is equal to 16: increment 'b' by one, and set 'a' to 0
60
if
(a == 16)
61
{
62
b += 1;
63
a = 0;
64
}
65
66
// now, 'a' and 'b' should be integers between 0 and 15,
67
NS_ASSERT
(a >= 0 && a < 16);
68
NS_ASSERT
(b >= 0 && b < 16);
69
70
// the field will be a byte holding the value a*16+b
71
return
(uint8_t)((a << 4) | b);
72
}
73
74
///
75
/// \brief Converts a number of seconds in the mantissa/exponent format to a decimal number.
76
///
77
/// \param olsrFormat number of seconds in mantissa/exponent format.
78
/// \return the decimal number of seconds.
79
///
80
double
81
EmfToSeconds
(uint8_t olsrFormat)
82
{
83
int
a = (olsrFormat >> 4);
84
int
b = (olsrFormat & 0xf);
85
// value = C*(1+a/16)*2^b [in seconds]
86
return
OLSR_C
* (1 + a / 16.0) * (1 << b);
87
}
88
89
// ---------------- OLSR Packet -------------------------------
90
91
NS_OBJECT_ENSURE_REGISTERED
(PacketHeader);
92
93
PacketHeader::PacketHeader
()
94
{
95
}
96
97
PacketHeader::~PacketHeader
()
98
{
99
}
100
101
TypeId
102
PacketHeader::GetTypeId
()
103
{
104
static
TypeId
tid =
TypeId
(
"ns3::olsr::PacketHeader"
)
105
.
SetParent
<
Header
>()
106
.SetGroupName(
"Olsr"
)
107
.AddConstructor<
PacketHeader
>();
108
return
tid;
109
}
110
111
TypeId
112
PacketHeader::GetInstanceTypeId
()
const
113
{
114
return
GetTypeId
();
115
}
116
117
uint32_t
118
PacketHeader::GetSerializedSize
()
const
119
{
120
return
OLSR_PKT_HEADER_SIZE
;
121
}
122
123
void
124
PacketHeader::Print
(std::ostream& os)
const
125
{
126
os <<
"len: "
<<
m_packetLength
<<
" seqNo: "
<<
m_packetSequenceNumber
;
127
}
128
129
void
130
PacketHeader::Serialize
(
Buffer::Iterator
start)
const
131
{
132
Buffer::Iterator
i = start;
133
i.
WriteHtonU16
(
m_packetLength
);
134
i.
WriteHtonU16
(
m_packetSequenceNumber
);
135
}
136
137
uint32_t
138
PacketHeader::Deserialize
(
Buffer::Iterator
start)
139
{
140
Buffer::Iterator
i = start;
141
m_packetLength
= i.
ReadNtohU16
();
142
m_packetSequenceNumber
= i.
ReadNtohU16
();
143
return
GetSerializedSize
();
144
}
145
146
// ---------------- OLSR Message -------------------------------
147
148
NS_OBJECT_ENSURE_REGISTERED
(
MessageHeader
);
149
150
MessageHeader::MessageHeader
()
151
: m_messageType(
MessageHeader
::
MessageType
(0))
152
{
153
}
154
155
MessageHeader::~MessageHeader
()
156
{
157
}
158
159
TypeId
160
MessageHeader::GetTypeId
()
161
{
162
static
TypeId
tid =
TypeId
(
"ns3::olsr::MessageHeader"
)
163
.
SetParent
<
Header
>()
164
.SetGroupName(
"Olsr"
)
165
.AddConstructor<
MessageHeader
>();
166
return
tid;
167
}
168
169
TypeId
170
MessageHeader::GetInstanceTypeId
()
const
171
{
172
return
GetTypeId
();
173
}
174
175
uint32_t
176
MessageHeader::GetSerializedSize
()
const
177
{
178
uint32_t
size =
OLSR_MSG_HEADER_SIZE
;
179
switch
(
m_messageType
)
180
{
181
case
MID_MESSAGE
:
182
size +=
m_message
.mid.GetSerializedSize();
183
break
;
184
case
HELLO_MESSAGE
:
185
NS_LOG_DEBUG
(
"Hello Message Size: "
<< size <<
" + "
186
<<
m_message
.hello.GetSerializedSize());
187
size +=
m_message
.hello.GetSerializedSize();
188
break
;
189
case
TC_MESSAGE
:
190
size +=
m_message
.tc.GetSerializedSize();
191
break
;
192
case
HNA_MESSAGE
:
193
size +=
m_message
.hna.GetSerializedSize();
194
break
;
195
default
:
196
NS_ASSERT
(
false
);
197
}
198
return
size;
199
}
200
201
void
202
MessageHeader::Print
(std::ostream& os)
const
203
{
204
switch
(
m_messageType
)
205
{
206
case
HELLO_MESSAGE
:
207
os <<
"type: HELLO"
;
208
break
;
209
case
TC_MESSAGE
:
210
os <<
"type: TC"
;
211
break
;
212
case
MID_MESSAGE
:
213
os <<
"type: MID"
;
214
break
;
215
case
HNA_MESSAGE
:
216
os <<
"type: HNA"
;
217
break
;
218
}
219
220
os <<
" TTL: "
<< +
m_timeToLive
;
221
os <<
" Orig: "
<<
m_originatorAddress
;
222
os <<
" SeqNo: "
<<
m_messageSequenceNumber
;
223
os <<
" Validity: "
<< +
m_vTime
;
224
os <<
" Hop count: "
<< +
m_hopCount
;
225
os <<
" Size: "
<<
m_messageSize
;
226
227
switch
(
m_messageType
)
228
{
229
case
MID_MESSAGE
:
230
m_message
.mid.Print(os);
231
break
;
232
case
HELLO_MESSAGE
:
233
m_message
.hello.Print(os);
234
break
;
235
case
TC_MESSAGE
:
236
m_message
.tc.Print(os);
237
break
;
238
case
HNA_MESSAGE
:
239
m_message
.hna.Print(os);
240
break
;
241
default
:
242
NS_ASSERT
(
false
);
243
}
244
}
245
246
void
247
MessageHeader::Serialize
(
Buffer::Iterator
start)
const
248
{
249
Buffer::Iterator
i = start;
250
i.
WriteU8
(
m_messageType
);
251
i.
WriteU8
(
m_vTime
);
252
i.
WriteHtonU16
(
GetSerializedSize
());
253
i.
WriteHtonU32
(
m_originatorAddress
.
Get
());
254
i.
WriteU8
(
m_timeToLive
);
255
i.
WriteU8
(
m_hopCount
);
256
i.
WriteHtonU16
(
m_messageSequenceNumber
);
257
258
switch
(
m_messageType
)
259
{
260
case
MID_MESSAGE
:
261
m_message
.mid.Serialize(i);
262
break
;
263
case
HELLO_MESSAGE
:
264
m_message
.hello.Serialize(i);
265
break
;
266
case
TC_MESSAGE
:
267
m_message
.tc.Serialize(i);
268
break
;
269
case
HNA_MESSAGE
:
270
m_message
.hna.Serialize(i);
271
break
;
272
default
:
273
NS_ASSERT
(
false
);
274
}
275
}
276
277
uint32_t
278
MessageHeader::Deserialize
(
Buffer::Iterator
start)
279
{
280
uint32_t
size;
281
Buffer::Iterator
i = start;
282
m_messageType
= (
MessageType
)i.
ReadU8
();
283
NS_ASSERT
(
m_messageType
>=
HELLO_MESSAGE
&&
m_messageType
<=
HNA_MESSAGE
);
284
m_vTime
= i.
ReadU8
();
285
m_messageSize
= i.
ReadNtohU16
();
286
m_originatorAddress
=
Ipv4Address
(i.
ReadNtohU32
());
287
m_timeToLive
= i.
ReadU8
();
288
m_hopCount
= i.
ReadU8
();
289
m_messageSequenceNumber
= i.
ReadNtohU16
();
290
size =
OLSR_MSG_HEADER_SIZE
;
291
switch
(
m_messageType
)
292
{
293
case
MID_MESSAGE
:
294
size +=
m_message
.mid.Deserialize(i,
m_messageSize
-
OLSR_MSG_HEADER_SIZE
);
295
break
;
296
case
HELLO_MESSAGE
:
297
size +=
m_message
.hello.Deserialize(i,
m_messageSize
-
OLSR_MSG_HEADER_SIZE
);
298
break
;
299
case
TC_MESSAGE
:
300
size +=
m_message
.tc.Deserialize(i,
m_messageSize
-
OLSR_MSG_HEADER_SIZE
);
301
break
;
302
case
HNA_MESSAGE
:
303
size +=
m_message
.hna.Deserialize(i,
m_messageSize
-
OLSR_MSG_HEADER_SIZE
);
304
break
;
305
default
:
306
NS_ASSERT
(
false
);
307
}
308
return
size;
309
}
310
311
// ---------------- OLSR MID Message -------------------------------
312
313
uint32_t
314
MessageHeader::Mid::GetSerializedSize
()
const
315
{
316
return
this->
interfaceAddresses
.size() *
IPV4_ADDRESS_SIZE
;
317
}
318
319
void
320
MessageHeader::Mid::Print
(std::ostream& os)
const
321
{
322
bool
first
=
true
;
323
os <<
" ["
;
324
for
(
const
auto
& iAddr : interfaceAddresses)
325
{
326
if
(
first
)
327
{
328
first
=
false
;
329
}
330
else
331
{
332
os <<
", "
;
333
}
334
os << iAddr;
335
}
336
os <<
"]"
;
337
}
338
339
void
340
MessageHeader::Mid::Serialize
(
Buffer::Iterator
start)
const
341
{
342
Buffer::Iterator
i = start;
343
344
for
(
auto
iter = this->interfaceAddresses.begin(); iter != this->interfaceAddresses.end();
345
iter++)
346
{
347
i.
WriteHtonU32
(iter->Get());
348
}
349
}
350
351
uint32_t
352
MessageHeader::Mid::Deserialize
(
Buffer::Iterator
start,
uint32_t
messageSize)
353
{
354
Buffer::Iterator
i = start;
355
356
this->interfaceAddresses.clear();
357
NS_ASSERT
(messageSize %
IPV4_ADDRESS_SIZE
== 0);
358
359
int
numAddresses = messageSize /
IPV4_ADDRESS_SIZE
;
360
this->interfaceAddresses.erase(this->interfaceAddresses.begin(),
361
this->interfaceAddresses.end());
362
for
(
int
n = 0; n < numAddresses; ++n)
363
{
364
this->interfaceAddresses.emplace_back(i.
ReadNtohU32
());
365
}
366
return
GetSerializedSize
();
367
}
368
369
// ---------------- OLSR HELLO Message -------------------------------
370
371
uint32_t
372
MessageHeader::Hello::GetSerializedSize
()
const
373
{
374
uint32_t
size = 4;
375
for
(
auto
iter = this->linkMessages.begin(); iter != this->linkMessages.end(); iter++)
376
{
377
const
LinkMessage
& lm = *iter;
378
size += 4;
379
size +=
IPV4_ADDRESS_SIZE
* lm.
neighborInterfaceAddresses
.size();
380
}
381
return
size;
382
}
383
384
void
385
MessageHeader::Hello::Print
(std::ostream& os)
const
386
{
387
os <<
" Interval: "
<< +hTime <<
" ("
<<
EmfToSeconds
(hTime) <<
"s)"
;
388
os <<
" Willingness: "
<< willingness;
389
390
for
(
const
auto
& ilinkMessage : linkMessages)
391
{
392
const
LinkMessage
& lm = ilinkMessage;
393
os <<
" Link code: "
<< +(lm.
linkCode
);
394
os <<
" ["
;
395
bool
first
=
true
;
396
for
(
const
auto
& neigh_iter : lm.
neighborInterfaceAddresses
)
397
{
398
if
(
first
)
399
{
400
first
=
false
;
401
}
402
else
403
{
404
os <<
", "
;
405
}
406
os << neigh_iter;
407
}
408
os <<
"]"
;
409
}
410
}
411
412
void
413
MessageHeader::Hello::Serialize
(
Buffer::Iterator
start)
const
414
{
415
Buffer::Iterator
i = start;
416
417
i.
WriteU16
(0);
// Reserved
418
i.
WriteU8
(this->hTime);
419
i.
WriteU8
(
static_cast<
uint8_t
>
(this->willingness));
420
421
for
(
auto
iter = this->linkMessages.begin(); iter != this->linkMessages.end(); iter++)
422
{
423
const
LinkMessage
& lm = *iter;
424
425
i.
WriteU8
(lm.
linkCode
);
426
i.
WriteU8
(0);
// Reserved
427
428
// The size of the link message, counted in bytes and measured
429
// from the beginning of the "Link Code" field and until the
430
// next "Link Code" field (or - if there are no more link types
431
// - the end of the message).
432
i.
WriteHtonU16
(4 + lm.
neighborInterfaceAddresses
.size() *
IPV4_ADDRESS_SIZE
);
433
434
for
(
auto
neigh_iter = lm.
neighborInterfaceAddresses
.begin();
435
neigh_iter != lm.
neighborInterfaceAddresses
.end();
436
neigh_iter++)
437
{
438
i.
WriteHtonU32
(neigh_iter->Get());
439
}
440
}
441
}
442
443
uint32_t
444
MessageHeader::Hello::Deserialize
(
Buffer::Iterator
start,
uint32_t
messageSize)
445
{
446
Buffer::Iterator
i = start;
447
448
NS_ASSERT
(messageSize >= 4);
449
450
this->linkMessages.clear();
451
452
uint16_t helloSizeLeft = messageSize;
453
454
i.
ReadNtohU16
();
// Reserved
455
this->hTime = i.
ReadU8
();
456
this->willingness =
Willingness
(i.
ReadU8
());
457
458
helloSizeLeft -= 4;
459
460
while
(helloSizeLeft)
461
{
462
LinkMessage
lm;
463
NS_ASSERT
(helloSizeLeft >= 4);
464
lm.
linkCode
= i.
ReadU8
();
465
i.
ReadU8
();
// Reserved
466
uint16_t lmSize = i.
ReadNtohU16
();
467
NS_ASSERT
((lmSize - 4) %
IPV4_ADDRESS_SIZE
== 0);
468
for
(
int
n = (lmSize - 4) /
IPV4_ADDRESS_SIZE
; n; --n)
469
{
470
lm.
neighborInterfaceAddresses
.emplace_back(i.
ReadNtohU32
());
471
}
472
helloSizeLeft -= lmSize;
473
this->linkMessages.push_back(lm);
474
}
475
476
return
messageSize;
477
}
478
479
// ---------------- OLSR TC Message -------------------------------
480
481
uint32_t
482
MessageHeader::Tc::GetSerializedSize
()
const
483
{
484
return
4 + this->neighborAddresses.size() *
IPV4_ADDRESS_SIZE
;
485
}
486
487
void
488
MessageHeader::Tc::Print
(std::ostream& os)
const
489
{
490
os <<
" Adv. SeqNo: "
<< ansn;
491
os <<
" ["
;
492
bool
first
=
true
;
493
for
(
const
auto
& iAddr : neighborAddresses)
494
{
495
if
(
first
)
496
{
497
first
=
false
;
498
}
499
else
500
{
501
os <<
", "
;
502
}
503
os << iAddr;
504
}
505
os <<
"]"
;
506
}
507
508
void
509
MessageHeader::Tc::Serialize
(
Buffer::Iterator
start)
const
510
{
511
Buffer::Iterator
i = start;
512
513
i.
WriteHtonU16
(this->ansn);
514
i.
WriteHtonU16
(0);
// Reserved
515
516
for
(
auto
iter = this->neighborAddresses.begin(); iter != this->neighborAddresses.end(); iter++)
517
{
518
i.
WriteHtonU32
(iter->Get());
519
}
520
}
521
522
uint32_t
523
MessageHeader::Tc::Deserialize
(
Buffer::Iterator
start,
uint32_t
messageSize)
524
{
525
Buffer::Iterator
i = start;
526
527
this->neighborAddresses.clear();
528
NS_ASSERT
(messageSize >= 4);
529
530
this->ansn = i.
ReadNtohU16
();
531
i.
ReadNtohU16
();
// Reserved
532
533
NS_ASSERT
((messageSize - 4) %
IPV4_ADDRESS_SIZE
== 0);
534
int
numAddresses = (messageSize - 4) /
IPV4_ADDRESS_SIZE
;
535
this->neighborAddresses.clear();
536
for
(
int
n = 0; n < numAddresses; ++n)
537
{
538
this->neighborAddresses.emplace_back(i.
ReadNtohU32
());
539
}
540
541
return
messageSize;
542
}
543
544
// ---------------- OLSR HNA Message -------------------------------
545
546
uint32_t
547
MessageHeader::Hna::GetSerializedSize
()
const
548
{
549
return
2 * this->associations.size() *
IPV4_ADDRESS_SIZE
;
550
}
551
552
void
553
MessageHeader::Hna::Print
(std::ostream& os)
const
554
{
555
os <<
" ["
;
556
bool
first
=
true
;
557
for
(
const
auto
& iAssoc : associations)
558
{
559
if
(
first
)
560
{
561
first
=
false
;
562
}
563
else
564
{
565
os <<
", "
;
566
}
567
os << iAssoc.address <<
"/"
<< iAssoc.mask.GetPrefixLength();
568
}
569
os <<
"]"
;
570
}
571
572
void
573
MessageHeader::Hna::Serialize
(
Buffer::Iterator
start)
const
574
{
575
Buffer::Iterator
i = start;
576
577
for
(
size_t
n = 0; n < this->associations.size(); ++n)
578
{
579
i.
WriteHtonU32
(this->associations[n].address.Get());
580
i.
WriteHtonU32
(this->associations[n].mask.Get());
581
}
582
}
583
584
uint32_t
585
MessageHeader::Hna::Deserialize
(
Buffer::Iterator
start,
uint32_t
messageSize)
586
{
587
Buffer::Iterator
i = start;
588
589
NS_ASSERT
(messageSize % (
IPV4_ADDRESS_SIZE
* 2) == 0);
590
int
numAddresses = messageSize /
IPV4_ADDRESS_SIZE
/ 2;
591
this->associations.clear();
592
for
(
int
n = 0; n < numAddresses; ++n)
593
{
594
Ipv4Address
address(i.
ReadNtohU32
());
595
Ipv4Mask
mask(i.
ReadNtohU32
());
596
this->associations.push_back(
Association
{address, mask});
597
}
598
return
messageSize;
599
}
600
601
}
// namespace olsr
602
}
// namespace ns3
ns3::Buffer::Iterator
iterator in a Buffer instance
Definition
buffer.h:89
ns3::Buffer::Iterator::ReadU8
uint8_t ReadU8()
Definition
buffer.h:1016
ns3::Buffer::Iterator::WriteU8
void WriteU8(uint8_t data)
Definition
buffer.h:870
ns3::Buffer::Iterator::WriteU16
void WriteU16(uint16_t data)
Definition
buffer.cc:848
ns3::Buffer::Iterator::WriteHtonU16
void WriteHtonU16(uint16_t data)
Definition
buffer.h:904
ns3::Buffer::Iterator::ReadNtohU32
uint32_t ReadNtohU32()
Definition
buffer.h:967
ns3::Buffer::Iterator::WriteHtonU32
void WriteHtonU32(uint32_t data)
Definition
buffer.h:922
ns3::Buffer::Iterator::ReadNtohU16
uint16_t ReadNtohU16()
Definition
buffer.h:943
ns3::Header
Protocol header serialization and deserialization.
Definition
header.h:33
ns3::Ipv4Address
Ipv4 addresses are stored in host order in this class.
Definition
ipv4-address.h:31
ns3::Ipv4Address::Get
uint32_t Get() const
Get the host-order 32-bit IP address.
Definition
ipv4-address.cc:176
ns3::Ipv4Mask
a class to represent an Ipv4 address mask
Definition
ipv4-address.h:246
ns3::TypeId
a unique identifier for an interface.
Definition
type-id.h:48
ns3::TypeId::SetParent
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition
type-id.cc:1001
ns3::olsr::MessageHeader
This header can store HELP, TC, MID and HNA messages.
Definition
olsr-header.h:150
ns3::olsr::MessageHeader::~MessageHeader
~MessageHeader() override
Definition
olsr-header.cc:155
ns3::olsr::MessageHeader::Print
void Print(std::ostream &os) const override
Definition
olsr-header.cc:202
ns3::olsr::MessageHeader::m_messageType
MessageType m_messageType
The message type.
Definition
olsr-header.h:275
ns3::olsr::MessageHeader::m_message
struct ns3::olsr::MessageHeader::@66 m_message
Structure holding the message content.
ns3::olsr::MessageHeader::m_hopCount
uint8_t m_hopCount
The hop count.
Definition
olsr-header.h:279
ns3::olsr::MessageHeader::m_originatorAddress
Ipv4Address m_originatorAddress
The originator address.
Definition
olsr-header.h:277
ns3::olsr::MessageHeader::m_vTime
uint8_t m_vTime
The validity time.
Definition
olsr-header.h:276
ns3::olsr::MessageHeader::m_timeToLive
uint8_t m_timeToLive
The time to live.
Definition
olsr-header.h:278
ns3::olsr::MessageHeader::GetInstanceTypeId
TypeId GetInstanceTypeId() const override
Get the most derived TypeId for this Object.
Definition
olsr-header.cc:170
ns3::olsr::MessageHeader::MessageHeader
MessageHeader()
Definition
olsr-header.cc:150
ns3::olsr::MessageHeader::m_messageSize
uint16_t m_messageSize
The message size.
Definition
olsr-header.h:281
ns3::olsr::MessageHeader::GetSerializedSize
uint32_t GetSerializedSize() const override
Definition
olsr-header.cc:176
ns3::olsr::MessageHeader::m_messageSequenceNumber
uint16_t m_messageSequenceNumber
The message sequence number.
Definition
olsr-header.h:280
ns3::olsr::MessageHeader::Deserialize
uint32_t Deserialize(Buffer::Iterator start) override
Definition
olsr-header.cc:278
ns3::olsr::MessageHeader::Serialize
void Serialize(Buffer::Iterator start) const override
Definition
olsr-header.cc:247
ns3::olsr::MessageHeader::GetTypeId
static TypeId GetTypeId()
Get the type ID.
Definition
olsr-header.cc:160
ns3::olsr::MessageHeader::MessageType
MessageType
Message type.
Definition
olsr-header.h:156
ns3::olsr::MessageHeader::TC_MESSAGE
@ TC_MESSAGE
Definition
olsr-header.h:158
ns3::olsr::MessageHeader::HNA_MESSAGE
@ HNA_MESSAGE
Definition
olsr-header.h:160
ns3::olsr::MessageHeader::MID_MESSAGE
@ MID_MESSAGE
Definition
olsr-header.h:159
ns3::olsr::MessageHeader::HELLO_MESSAGE
@ HELLO_MESSAGE
Definition
olsr-header.h:157
ns3::olsr::PacketHeader
The basic layout of any packet in OLSR is as follows (omitting IP and UDP headers):
Definition
olsr-header.h:68
ns3::olsr::PacketHeader::PacketHeader
PacketHeader()
Definition
olsr-header.cc:93
ns3::olsr::PacketHeader::GetTypeId
static TypeId GetTypeId()
Get the type ID.
Definition
olsr-header.cc:102
ns3::olsr::PacketHeader::~PacketHeader
~PacketHeader() override
Definition
olsr-header.cc:97
ns3::olsr::PacketHeader::Deserialize
uint32_t Deserialize(Buffer::Iterator start) override
Definition
olsr-header.cc:138
ns3::olsr::PacketHeader::GetSerializedSize
uint32_t GetSerializedSize() const override
Definition
olsr-header.cc:118
ns3::olsr::PacketHeader::m_packetLength
uint16_t m_packetLength
The packet length.
Definition
olsr-header.h:110
ns3::olsr::PacketHeader::Print
void Print(std::ostream &os) const override
Definition
olsr-header.cc:124
ns3::olsr::PacketHeader::m_packetSequenceNumber
uint16_t m_packetSequenceNumber
The packet sequence number.
Definition
olsr-header.h:111
ns3::olsr::PacketHeader::Serialize
void Serialize(Buffer::Iterator start) const override
Definition
olsr-header.cc:130
ns3::olsr::PacketHeader::GetInstanceTypeId
TypeId GetInstanceTypeId() const override
Get the most derived TypeId for this Object.
Definition
olsr-header.cc:112
uint32_t
NS_ASSERT
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file,...
Definition
assert.h:55
NS_ASSERT_MSG
#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
NS_LOG_COMPONENT_DEFINE
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition
log.h:191
NS_LOG_DEBUG
#define NS_LOG_DEBUG(msg)
Use NS_LOG to output a message of level LOG_DEBUG.
Definition
log.h:257
NS_OBJECT_ENSURE_REGISTERED
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition
object-base.h:35
ns3::olsr::Willingness
Willingness
Willingness for forwarding packets from other nodes.
Definition
olsr-repositories.h:36
first
Definition
first.py:1
ns3::olsr::EmfToSeconds
double EmfToSeconds(uint8_t olsrFormat)
Converts a number of seconds in the mantissa/exponent format to a decimal number.
Definition
olsr-header.cc:81
ns3::olsr::SecondsToEmf
uint8_t SecondsToEmf(double seconds)
Converts a decimal number of seconds to the mantissa/exponent format.
Definition
olsr-header.cc:38
ns3
Every class exported by the ns3 library is enclosed in the ns3 namespace.
olsr
Definition
olsr.py:1
OLSR_MSG_HEADER_SIZE
#define OLSR_MSG_HEADER_SIZE
Definition
olsr-header.cc:17
IPV4_ADDRESS_SIZE
#define IPV4_ADDRESS_SIZE
Definition
olsr-header.cc:16
OLSR_PKT_HEADER_SIZE
#define OLSR_PKT_HEADER_SIZE
Definition
olsr-header.cc:18
OLSR_C
#define OLSR_C
Scaling factor used in RFC 3626.
Definition
olsr-header.cc:29
olsr-header.h
ns3::olsr::MessageHeader::Hello::LinkMessage
Link message item.
Definition
olsr-header.h:380
ns3::olsr::MessageHeader::Hello::LinkMessage::linkCode
uint8_t linkCode
Link code.
Definition
olsr-header.h:381
ns3::olsr::MessageHeader::Hello::LinkMessage::neighborInterfaceAddresses
std::vector< Ipv4Address > neighborInterfaceAddresses
Neighbor interface address container.
Definition
olsr-header.h:383
ns3::olsr::MessageHeader::Hello::Deserialize
uint32_t Deserialize(Buffer::Iterator start, uint32_t messageSize)
This method is used by Packet::RemoveHeader to re-create a header from the byte buffer of a packet.
Definition
olsr-header.cc:444
ns3::olsr::MessageHeader::Hello::Print
void Print(std::ostream &os) const
This method is used to print the content of a Hello message.
Definition
olsr-header.cc:385
ns3::olsr::MessageHeader::Hello::GetSerializedSize
uint32_t GetSerializedSize() const
Returns the expected size of the header.
Definition
olsr-header.cc:372
ns3::olsr::MessageHeader::Hello::Serialize
void Serialize(Buffer::Iterator start) const
This method is used by Packet::AddHeader to store a header into the byte buffer of a packet.
Definition
olsr-header.cc:413
ns3::olsr::MessageHeader::Hna::Association
Association item structure.
Definition
olsr-header.h:519
ns3::olsr::MessageHeader::Hna::Serialize
void Serialize(Buffer::Iterator start) const
This method is used by Packet::AddHeader to store a header into the byte buffer of a packet.
Definition
olsr-header.cc:573
ns3::olsr::MessageHeader::Hna::Deserialize
uint32_t Deserialize(Buffer::Iterator start, uint32_t messageSize)
This method is used by Packet::RemoveHeader to re-create a header from the byte buffer of a packet.
Definition
olsr-header.cc:585
ns3::olsr::MessageHeader::Hna::Print
void Print(std::ostream &os) const
This method is used to print the content of a Hna message.
Definition
olsr-header.cc:553
ns3::olsr::MessageHeader::Hna::GetSerializedSize
uint32_t GetSerializedSize() const
Returns the expected size of the header.
Definition
olsr-header.cc:547
ns3::olsr::MessageHeader::Mid::GetSerializedSize
uint32_t GetSerializedSize() const
Returns the expected size of the header.
Definition
olsr-header.cc:314
ns3::olsr::MessageHeader::Mid::interfaceAddresses
std::vector< Ipv4Address > interfaceAddresses
Interface Address container.
Definition
olsr-header.h:313
ns3::olsr::MessageHeader::Mid::Serialize
void Serialize(Buffer::Iterator start) const
This method is used by Packet::AddHeader to store a header into the byte buffer of a packet.
Definition
olsr-header.cc:340
ns3::olsr::MessageHeader::Mid::Print
void Print(std::ostream &os) const
This method is used to print the content of a MID message.
Definition
olsr-header.cc:320
ns3::olsr::MessageHeader::Mid::Deserialize
uint32_t Deserialize(Buffer::Iterator start, uint32_t messageSize)
This method is used by Packet::RemoveHeader to re-create a header from the byte buffer of a packet.
Definition
olsr-header.cc:352
ns3::olsr::MessageHeader::Tc::Serialize
void Serialize(Buffer::Iterator start) const
This method is used by Packet::AddHeader to store a header into the byte buffer of a packet.
Definition
olsr-header.cc:509
ns3::olsr::MessageHeader::Tc::GetSerializedSize
uint32_t GetSerializedSize() const
Returns the expected size of the header.
Definition
olsr-header.cc:482
ns3::olsr::MessageHeader::Tc::Print
void Print(std::ostream &os) const
This method is used to print the content of a Tc message.
Definition
olsr-header.cc:488
ns3::olsr::MessageHeader::Tc::Deserialize
uint32_t Deserialize(Buffer::Iterator start, uint32_t messageSize)
This method is used by Packet::RemoveHeader to re-create a header from the byte buffer of a packet.
Definition
olsr-header.cc:523
src
olsr
model
olsr-header.cc
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