A Discrete-Event Network Simulator
API
ie-dot11s-id.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2008,2009 IITP RAS
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: Kirill Andreev <andreev@iitp.ru>
19  */
20 
21 #include "ie-dot11s-id.h"
22 #include "ns3/assert.h"
23 
24 namespace ns3 {
25 namespace dot11s {
26 
28 {
29  for (uint8_t i = 0; i < 32; i++)
30  {
31  m_meshId[i] = 0;
32  }
33 }
34 IeMeshId::IeMeshId (std::string s)
35 {
36  NS_ASSERT (s.size () < 32);
37  const char *meshid = s.c_str ();
38  uint8_t len = 0;
39  while (*meshid != 0 && len < 32)
40  {
41  m_meshId[len] = *meshid;
42  meshid++;
43  len++;
44  }
45  NS_ASSERT (len <= 32);
46  while (len < 33)
47  {
48  m_meshId[len] = 0;
49  len++;
50  }
51 }
54 {
55  return IE_MESH_ID;
56 }
57 bool
58 IeMeshId::IsEqual (IeMeshId const &o) const
59 {
60  uint8_t i = 0;
61  while (i < 32 && m_meshId[i] == o.m_meshId[i] && m_meshId[i] != 0)
62  {
63  i++;
64  }
65  if (m_meshId[i] != o.m_meshId[i])
66  {
67  return false;
68  }
69  return true;
70 }
71 bool
73 {
74  if (m_meshId[0] == 0)
75  {
76  return true;
77  }
78  return false;
79 }
80 char *
82 {
83  return (char *) m_meshId;
84 }
85 uint8_t
87 {
88  uint8_t size = 0;
89  while (m_meshId[size] != 0 && size < 32)
90  {
91  size++;
92  }
93  NS_ASSERT (size <= 32);
94  return size;
95 }
96 void
98 {
99  uint8_t size = 0;
100  while (m_meshId[size] != 0 && size < 32)
101  {
102  i.WriteU8 (m_meshId[size]);
103  size++;
104  }
105 }
106 uint8_t
108 {
110  NS_ASSERT (length <= 32);
111  i.Read (m_meshId, length);
112  m_meshId[length] = 0;
113  return i.GetDistanceFrom (start);
114 }
115 void
116 IeMeshId::Print (std::ostream& os) const
117 {
118  os << "MeshId=(meshId=" << PeekString () << ")";
119 }
120 bool
121 operator== (const IeMeshId & a, const IeMeshId & b)
122 {
123  bool result (true);
124  uint8_t size = 0;
125 
126  while (size < 32)
127  {
128  result = result && (a.m_meshId[size] == b.m_meshId[size]);
129  if (a.m_meshId[size] == 0)
130  {
131  return result;
132  }
133  size++;
134  }
135  return result;
136 }
137 std::ostream &
138 operator << (std::ostream &os, const IeMeshId &a)
139 {
140  a.Print (os);
141  return os;
142 }
143 
144 std::istream &operator >> (std::istream &is, IeMeshId &a)
145 {
146  std::string str;
147  is >> str;
148  a = IeMeshId (str.c_str ());
149  return is;
150 }
151 
153 
154 
155 } // namespace dot11s
156 } // namespace ns3
virtual uint8_t GetInformationFieldSize() const
Length of serialized information (i.e., the length of the body of the IE, not including the Element I...
Definition: ie-dot11s-id.cc:86
#define IE_MESH_ID
#define ATTRIBUTE_HELPER_CPP(type)
Define the attribute value, accessor and checkers for class type.
def start()
Definition: core.py:1855
#define NS_ASSERT(condition)
At runtime, in debugging builds, if this condition is not true, the program prints the source file...
Definition: assert.h:67
a IEEE 802.11 Mesh ID element (Section 8.4.2.101 of IEEE 802.11-2012)
Definition: ie-dot11s-id.h:34
bool operator==(const MeshHeader &a, const MeshHeader &b)
iterator in a Buffer instance
Definition: buffer.h:98
virtual void SerializeInformationField(Buffer::Iterator i) const
Serialize information (i.e., the body of the IE, not including the Element ID and length octets) ...
Definition: ie-dot11s-id.cc:97
uint32_t GetDistanceFrom(Iterator const &o) const
Definition: buffer.cc:783
bool IsBroadcast(void) const
Return true if broadcast (if first octet of Mesh ID is zero)
Definition: ie-dot11s-id.cc:72
virtual void Print(std::ostream &os) const
Generate human-readable form of IE.
virtual uint8_t DeserializeInformationField(Buffer::Iterator start, uint8_t length)
Deserialize information (i.e., the body of the IE, not including the Element ID and length octets) ...
Every class exported by the ns3 library is enclosed in the ns3 namespace.
virtual WifiInformationElementId ElementId() const
Definition: ie-dot11s-id.cc:53
void Read(uint8_t *buffer, uint32_t size)
Definition: buffer.cc:1123
bool IsEqual(IeMeshId const &o) const
Equality test.
Definition: ie-dot11s-id.cc:58
void WriteU8(uint8_t data)
Definition: buffer.h:869
char * PeekString(void) const
Peek the IeMeshId as a string value.
Definition: ie-dot11s-id.cc:81
uint8_t WifiInformationElementId
This type is used to represent an Information Element ID.
uint8_t m_meshId[33]
mesh ID
Definition: ie-dot11s-id.h:72
std::ostream & operator<<(std::ostream &os, const IeBeaconTiming &a)
std::istream & operator>>(std::istream &is, IeMeshId &a)