A Discrete-Event Network Simulator
API
ripng-header.cc
Go to the documentation of this file.
1/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2014 Universita' di Firenze, Italy
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 * Author: Tommaso Pecorella <tommaso.pecorella@unifi.it>
19 */
20
21#include "ripng-header.h"
22#include "ns3/log.h"
23
24namespace ns3 {
25
26/*
27 * RipNgRte
28 */
30
32 : m_prefix ("::"), m_tag (0), m_prefixLen (0), m_metric (16)
33{
34}
35
37{
38 static TypeId tid = TypeId ("ns3::RipNgRte")
39 .SetParent<Header> ()
40 .SetGroupName ("Internet")
41 .AddConstructor<RipNgRte> ();
42 return tid;
43}
44
46{
47 return GetTypeId ();
48}
49
50void RipNgRte::Print (std::ostream & os) const
51{
52 os << "prefix " << m_prefix << "/" << int(m_prefixLen) << " Metric " << int(m_metric) << " Tag " << int(m_tag);
53}
54
56{
57 return 20;
58}
59
61{
62 uint8_t tmp[16];
63
64 m_prefix.Serialize (tmp);
65 i.Write (tmp, 16);
66
69 i.WriteU8 (m_metric);
70}
71
73{
74 uint8_t tmp[16];
75
76 i.Read (tmp, 16);
77 m_prefix.Set (tmp);
78 m_tag = i.ReadNtohU16 ();
79 m_prefixLen = i.ReadU8 ();
80 m_metric = i.ReadU8 ();
81
82 return GetSerializedSize ();
83}
84
86{
87 m_prefix = prefix;
88}
89
91{
92 return m_prefix;
93}
94
95void RipNgRte::SetPrefixLen (uint8_t prefixLen)
96{
97 m_prefixLen = prefixLen;
98}
99
101{
102 return m_prefixLen;
103}
104
105void RipNgRte::SetRouteTag (uint16_t routeTag)
106{
107 m_tag = routeTag;
108}
109
110uint16_t RipNgRte::GetRouteTag () const
111{
112 return m_tag;
113}
114
115void RipNgRte::SetRouteMetric (uint8_t routeMetric)
116{
117 m_metric = routeMetric;
118}
119
121{
122 return m_metric;
123}
124
125
126std::ostream & operator << (std::ostream & os, const RipNgRte & h)
127{
128 h.Print (os);
129 return os;
130}
131
132/*
133 * RipNgHeader
134 */
135NS_LOG_COMPONENT_DEFINE ("RipNgHeader");
136NS_OBJECT_ENSURE_REGISTERED (RipNgHeader);
137
139 : m_command (0)
140{
141}
142
144{
145 static TypeId tid = TypeId ("ns3::RipNgHeader")
146 .SetParent<Header> ()
147 .SetGroupName ("Internet")
148 .AddConstructor<RipNgHeader> ();
149 return tid;
150}
151
153{
154 return GetTypeId ();
155}
156
157void RipNgHeader::Print (std::ostream & os) const
158{
159 os << "command " << int(m_command);
160 for (std::list<RipNgRte>::const_iterator iter = m_rteList.begin ();
161 iter != m_rteList.end (); iter ++)
162 {
163 os << " | ";
164 iter->Print (os);
165 }
166}
167
169{
170 RipNgRte rte;
171 return 4 + m_rteList.size () * rte.GetSerializedSize ();
172}
173
175{
177
178 i.WriteU8 (uint8_t (m_command));
179 i.WriteU8 (1);
180 i.WriteU16 (0);
181
182 for (std::list<RipNgRte>::const_iterator iter = m_rteList.begin ();
183 iter != m_rteList.end (); iter ++)
184 {
185 iter->Serialize (i);
186 i.Next(iter->GetSerializedSize ());
187 }
188}
189
191{
193
194 uint8_t temp;
195 temp = i.ReadU8 ();
196 if ((temp == REQUEST) || (temp == RESPONSE))
197 {
198 m_command = temp;
199 }
200 else
201 {
202 return 0;
203 }
204
205 if (i.ReadU8 () != 1)
206 {
207 NS_LOG_LOGIC ("RIP received a message with mismatch version, ignoring.");
208 return 0;
209 }
210
211 if (i.ReadU16 () != 0)
212 {
213 NS_LOG_LOGIC ("RIP received a message with invalid filled flags, ignoring.");
214 return 0;
215 }
216
217 uint8_t rteNumber = i.GetRemainingSize ()/20;
218 for (uint8_t n=0; n<rteNumber; n++)
219 {
220 RipNgRte rte;
221 i.Next (rte.Deserialize (i));
222 m_rteList.push_back (rte);
223 }
224
225 return GetSerializedSize ();
226}
227
229{
230 m_command = command;
231}
232
234{
236}
237
239{
240 m_rteList.push_back (rte);
241}
242
244{
245 m_rteList.clear ();
246}
247
248uint16_t RipNgHeader::GetRteNumber (void) const
249{
250 return m_rteList.size ();
251}
252
253std::list<RipNgRte> RipNgHeader::GetRteList (void) const
254{
255 return m_rteList;
256}
257
258
259std::ostream & operator << (std::ostream & os, const RipNgHeader & h)
260{
261 h.Print (os);
262 return os;
263}
264
265
266}
267
iterator in a Buffer instance
Definition: buffer.h:99
void Write(uint8_t const *buffer, uint32_t size)
Definition: buffer.cc:954
uint16_t ReadNtohU16(void)
Definition: buffer.h:946
void WriteU8(uint8_t data)
Definition: buffer.h:869
uint32_t GetRemainingSize(void) const
Definition: buffer.cc:1166
void Next(void)
go forward by one byte
Definition: buffer.h:845
void WriteU16(uint16_t data)
Definition: buffer.cc:871
uint16_t ReadU16(void)
Definition: buffer.h:1029
uint8_t ReadU8(void)
Definition: buffer.h:1021
void Read(uint8_t *buffer, uint32_t size)
Definition: buffer.cc:1124
void WriteHtonU16(uint16_t data)
Definition: buffer.h:905
Protocol header serialization and deserialization.
Definition: header.h:43
Describes an IPv6 address.
Definition: ipv6-address.h:50
void Serialize(uint8_t buf[16]) const
Serialize this address to a 16-byte buffer.
void Set(char const *address)
Sets an Ipv6Address by parsing the input C-string.
RipNgHeader - see RFC 2080
Definition: ripng-header.h:147
uint8_t m_command
command type
Definition: ripng-header.h:229
virtual void Serialize(Buffer::Iterator start) const
Serialize the packet.
uint16_t GetRteNumber(void) const
Get the number of RTE included in the message.
virtual uint32_t GetSerializedSize(void) const
Get the serialized size of the packet.
virtual void Print(std::ostream &os) const
void SetCommand(Command_e command)
Set the command.
void ClearRtes()
Clear all the RTEs from the header.
virtual TypeId GetInstanceTypeId(void) const
Return the instance type identifier.
Command_e GetCommand(void) const
Get the command.
static TypeId GetTypeId(void)
Get the type ID.
std::list< RipNgRte > m_rteList
list of the RTEs in the message
Definition: ripng-header.h:230
virtual uint32_t Deserialize(Buffer::Iterator start)
Deserialize the packet.
std::list< RipNgRte > GetRteList(void) const
Get the list of the RTEs included in the message.
Command_e
Commands to be used in RipNg headers.
Definition: ripng-header.h:188
void AddRte(RipNgRte rte)
Add a RTE to the message.
RipNg Routing Table Entry (RTE) - see RFC 2080
Definition: ripng-header.h:39
uint16_t m_tag
route tag
Definition: ripng-header.h:127
uint8_t m_metric
route metric
Definition: ripng-header.h:129
Ipv6Address m_prefix
prefix
Definition: ripng-header.h:126
virtual TypeId GetInstanceTypeId(void) const
Return the instance type identifier.
Definition: ripng-header.cc:45
uint8_t m_prefixLen
prefix length
Definition: ripng-header.h:128
void SetPrefix(Ipv6Address prefix)
Set the prefix.
Definition: ripng-header.cc:85
void SetPrefixLen(uint8_t prefixLen)
Set the prefix length.
Definition: ripng-header.cc:95
void SetRouteMetric(uint8_t routeMetric)
Set the route metric.
virtual uint32_t GetSerializedSize(void) const
Get the serialized size of the packet.
Definition: ripng-header.cc:55
virtual void Serialize(Buffer::Iterator start) const
Serialize the packet.
Definition: ripng-header.cc:60
static TypeId GetTypeId(void)
Get the type ID.
Definition: ripng-header.cc:36
virtual void Print(std::ostream &os) const
Definition: ripng-header.cc:50
uint8_t GetRouteMetric(void) const
Get the route metric.
uint8_t GetPrefixLen(void) const
Get the prefix length.
uint16_t GetRouteTag(void) const
Get the route tag.
virtual uint32_t Deserialize(Buffer::Iterator start)
Deserialize the packet.
Definition: ripng-header.cc:72
void SetRouteTag(uint16_t routeTag)
Set the route tag.
Ipv6Address GetPrefix(void) const
Get the prefix.
Definition: ripng-header.cc:90
a unique identifier for an interface.
Definition: type-id.h:59
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition: type-id.cc:922
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:205
#define NS_LOG_LOGIC(msg)
Use NS_LOG to output a message of level LOG_LOGIC.
Definition: log.h:289
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition: object-base.h:45
Every class exported by the ns3 library is enclosed in the ns3 namespace.
std::ostream & operator<<(std::ostream &os, const Angles &a)
Definition: angles.cc:139
def start()
Definition: core.py:1852