A Discrete-Event Network Simulator
API
ie-dot11s-id.cc
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1/*
2 * Copyright (c) 2008,2009 IITP RAS
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 * Author: Kirill Andreev <andreev@iitp.ru>
18 */
19
20#include "ie-dot11s-id.h"
21
22#include "ns3/assert.h"
23
24namespace ns3
25{
26namespace dot11s
27{
28
30{
31 for (uint8_t i = 0; i < 32; i++)
32 {
33 m_meshId[i] = 0;
34 }
35}
36
37IeMeshId::IeMeshId(std::string s)
38{
39 NS_ASSERT(s.size() < 32);
40 const char* meshid = s.c_str();
41 uint8_t len = 0;
42 while (*meshid != 0 && len < 32)
43 {
44 m_meshId[len] = *meshid;
45 meshid++;
46 len++;
47 }
48 NS_ASSERT(len <= 32);
49 while (len < 33)
50 {
51 m_meshId[len] = 0;
52 len++;
53 }
54}
55
58{
59 return IE_MESH_ID;
60}
61
62bool
64{
65 uint8_t i = 0;
66 while (i < 32 && m_meshId[i] == o.m_meshId[i] && m_meshId[i] != 0)
67 {
68 i++;
69 }
70 if (m_meshId[i] != o.m_meshId[i])
71 {
72 return false;
73 }
74 return true;
75}
76
77bool
79{
80 if (m_meshId[0] == 0)
81 {
82 return true;
83 }
84 return false;
85}
86
87char*
89{
90 return (char*)m_meshId;
91}
92
93uint16_t
95{
96 uint8_t size = 0;
97 while (m_meshId[size] != 0 && size < 32)
98 {
99 size++;
100 }
101 NS_ASSERT(size <= 32);
102 return size;
103}
104
105void
107{
108 uint8_t size = 0;
109 while (m_meshId[size] != 0 && size < 32)
110 {
111 i.WriteU8(m_meshId[size]);
112 size++;
113 }
114}
115
116uint16_t
118{
120 NS_ASSERT(length <= 32);
121 i.Read(m_meshId, length);
122 m_meshId[length] = 0;
123 return i.GetDistanceFrom(start);
124}
125
126void
127IeMeshId::Print(std::ostream& os) const
128{
129 os << "MeshId=(meshId=" << PeekString() << ")";
130}
131
132bool
133operator==(const IeMeshId& a, const IeMeshId& b)
134{
135 bool result(true);
136 uint8_t size = 0;
137
138 while (size < 32)
139 {
140 result = result && (a.m_meshId[size] == b.m_meshId[size]);
141 if (a.m_meshId[size] == 0)
142 {
143 return result;
144 }
145 size++;
146 }
147 return result;
148}
149
150std::ostream&
151operator<<(std::ostream& os, const IeMeshId& a)
152{
153 a.Print(os);
154 return os;
155}
156
157std::istream&
158operator>>(std::istream& is, IeMeshId& a)
159{
160 std::string str;
161 is >> str;
162 a = IeMeshId(str);
163 return is;
164}
165
166} // namespace dot11s
167} // namespace ns3
iterator in a Buffer instance
Definition: buffer.h:100
void WriteU8(uint8_t data)
Definition: buffer.h:881
void Read(uint8_t *buffer, uint32_t size)
Definition: buffer.cc:1128
uint32_t GetDistanceFrom(const Iterator &o) const
Definition: buffer.cc:783
a IEEE 802.11 Mesh ID element (Section 8.4.2.101 of IEEE 802.11-2012)
Definition: ie-dot11s-id.h:38
WifiInformationElementId ElementId() const override
Get the wifi information element ID.
Definition: ie-dot11s-id.cc:57
uint16_t GetInformationFieldSize() const override
Length of serialized information (i.e., the length of the body of the IE, not including the Element I...
Definition: ie-dot11s-id.cc:94
bool IsBroadcast() const
Return true if broadcast (if first octet of Mesh ID is zero)
Definition: ie-dot11s-id.cc:78
void Print(std::ostream &os) const override
Generate human-readable form of IE.
bool IsEqual(const IeMeshId &o) const
Equality test.
Definition: ie-dot11s-id.cc:63
uint8_t m_meshId[33]
mesh ID
Definition: ie-dot11s-id.h:75
void SerializeInformationField(Buffer::Iterator i) const override
Serialize information (i.e., the body of the IE, not including the Element ID and length octets)
uint16_t DeserializeInformationField(Buffer::Iterator start, uint16_t length) override
Deserialize information (i.e., the body of the IE, not including the Element ID and length octets)
char * PeekString() const
Peek the IeMeshId as a string value.
Definition: ie-dot11s-id.cc:88
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file,...
Definition: assert.h:66
std::istream & operator>>(std::istream &is, IeMeshId &a)
bool operator==(const MeshHeader &a, const MeshHeader &b)
std::ostream & operator<<(std::ostream &os, const IeBeaconTiming &a)
Every class exported by the ns3 library is enclosed in the ns3 namespace.
uint8_t WifiInformationElementId
This type is used to represent an Information Element ID.
#define IE_MESH_ID