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tcp-socket.cc
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2007 INRIA
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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
19  */
20 
21 #include "ns3/object.h"
22 #include "ns3/log.h"
23 #include "ns3/uinteger.h"
24 #include "ns3/double.h"
25 #include "ns3/boolean.h"
26 #include "ns3/trace-source-accessor.h"
27 #include "ns3/nstime.h"
28 #include "tcp-socket.h"
29 
30 NS_LOG_COMPONENT_DEFINE ("TcpSocket");
31 
32 namespace ns3 {
33 
34 NS_OBJECT_ENSURE_REGISTERED (TcpSocket);
35 
36 const char* const TcpSocket::TcpStateName[LAST_STATE] = { "CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD", "ESTABLISHED", "CLOSE_WAIT", "LAST_ACK", "FIN_WAIT_1", "FIN_WAIT_2", "CLOSING", "TIME_WAIT" };
37 
38 TypeId
39 TcpSocket::GetTypeId (void)
40 {
41  static TypeId tid = TypeId ("ns3::TcpSocket")
42  .SetParent<Socket> ()
43  .AddAttribute ("SndBufSize",
44  "TcpSocket maximum transmit buffer size (bytes)",
45  UintegerValue (131072), // 128k
46  MakeUintegerAccessor (&TcpSocket::GetSndBufSize,
47  &TcpSocket::SetSndBufSize),
48  MakeUintegerChecker<uint32_t> ())
49  .AddAttribute ("RcvBufSize",
50  "TcpSocket maximum receive buffer size (bytes)",
51  UintegerValue (131072),
52  MakeUintegerAccessor (&TcpSocket::GetRcvBufSize,
53  &TcpSocket::SetRcvBufSize),
54  MakeUintegerChecker<uint32_t> ())
55  .AddAttribute ("SegmentSize",
56  "TCP maximum segment size in bytes (may be adjusted based on MTU discovery)",
57  UintegerValue (536),
58  MakeUintegerAccessor (&TcpSocket::GetSegSize,
59  &TcpSocket::SetSegSize),
60  MakeUintegerChecker<uint32_t> ())
61  .AddAttribute ("SlowStartThreshold",
62  "TCP slow start threshold (bytes)",
63  UintegerValue (0xffff),
64  MakeUintegerAccessor (&TcpSocket::GetSSThresh,
65  &TcpSocket::SetSSThresh),
66  MakeUintegerChecker<uint32_t> ())
67  .AddAttribute ("InitialCwnd",
68  "TCP initial congestion window size (segments)",
69  UintegerValue (1),
70  MakeUintegerAccessor (&TcpSocket::GetInitialCwnd,
71  &TcpSocket::SetInitialCwnd),
72  MakeUintegerChecker<uint32_t> ())
73  .AddAttribute ("ConnTimeout",
74  "TCP retransmission timeout when opening connection (seconds)",
75  TimeValue (Seconds (3)),
76  MakeTimeAccessor (&TcpSocket::GetConnTimeout,
77  &TcpSocket::SetConnTimeout),
78  MakeTimeChecker ())
79  .AddAttribute ("ConnCount",
80  "Number of connection attempts (SYN retransmissions) before returning failure",
81  UintegerValue (6),
82  MakeUintegerAccessor (&TcpSocket::GetConnCount,
83  &TcpSocket::SetConnCount),
84  MakeUintegerChecker<uint32_t> ())
85  .AddAttribute ("DelAckTimeout",
86  "Timeout value for TCP delayed acks, in seconds",
87  TimeValue (Seconds (0.2)),
88  MakeTimeAccessor (&TcpSocket::GetDelAckTimeout,
89  &TcpSocket::SetDelAckTimeout),
90  MakeTimeChecker ())
91  .AddAttribute ("DelAckCount",
92  "Number of packets to wait before sending a TCP ack",
93  UintegerValue (2),
94  MakeUintegerAccessor (&TcpSocket::GetDelAckMaxCount,
95  &TcpSocket::SetDelAckMaxCount),
96  MakeUintegerChecker<uint32_t> ())
97  .AddAttribute ("TcpNoDelay", "Set to true to disable Nagle's algorithm",
98  BooleanValue (true),
99  MakeBooleanAccessor (&TcpSocket::GetTcpNoDelay,
100  &TcpSocket::SetTcpNoDelay),
101  MakeBooleanChecker ())
102  .AddAttribute ("PersistTimeout",
103  "Persist timeout to probe for rx window",
104  TimeValue (Seconds (6)),
105  MakeTimeAccessor (&TcpSocket::GetPersistTimeout,
106  &TcpSocket::SetPersistTimeout),
107  MakeTimeChecker ())
108  ;
109  return tid;
110 }
111 
112 TcpSocket::TcpSocket ()
113 {
114  NS_LOG_FUNCTION_NOARGS ();
115 }
116 
117 TcpSocket::~TcpSocket ()
118 {
119  NS_LOG_FUNCTION_NOARGS ();
120 }
121 
122 } // namespace ns3