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
char * PeekString(void) const
Peek the IeMeshId as a string value.
Definition: ie-dot11s-id.cc:81
#define IE_MESH_ID
#define ATTRIBUTE_HELPER_CPP(type)
Define the attribute value, accessor and checkers for class type.
def start()
Definition: core.py:1806
#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
uint32_t GetDistanceFrom(Iterator const &o) const
Definition: buffer.cc:786
iterator in a Buffer instance
Definition: buffer.h:98
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) ...
virtual WifiInformationElementId ElementId() const
Definition: ie-dot11s-id.cc:53
friend bool operator==(const IeMeshId &a, const IeMeshId &b)
equality operator
Every class exported by the ns3 library is enclosed in the ns3 namespace.
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
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
void Read(uint8_t *buffer, uint32_t size)
Definition: buffer.cc:1126
void WriteU8(uint8_t data)
Definition: buffer.h:869
bool IsBroadcast(void) const
Return true if broadcast (if first octet of Mesh ID is zero)
Definition: ie-dot11s-id.cc:72
bool IsEqual(IeMeshId const &o) const
Equality test.
Definition: ie-dot11s-id.cc:58
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)