1 /*---------------------------------------------------------------
2 * Copyright (c) 1999,2000,2001,2002,2003
3 * The Board of Trustees of the University of Illinois
5 *---------------------------------------------------------------
6 * Permission is hereby granted, free of charge, to any person
7 * obtaining a copy of this software (Iperf) and associated
8 * documentation files (the "Software"), to deal in the Software
9 * without restriction, including without limitation the
10 * rights to use, copy, modify, merge, publish, distribute,
11 * sublicense, and/or sell copies of the Software, and to permit
12 * persons to whom the Software is furnished to do
13 * so, subject to the following conditions:
16 * Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and
18 * the following disclaimers.
21 * Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimers in the documentation and/or other materials
24 * provided with the distribution.
27 * Neither the names of the University of Illinois, NCSA,
28 * nor the names of its contributors may be used to endorse
29 * or promote products derived from this Software without
30 * specific prior written permission.
32 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
33 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
34 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
35 * NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT
36 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
37 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
38 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE
39 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
40 * ________________________________________________________________
41 * National Laboratory for Applied Network Research
42 * National Center for Supercomputing Applications
43 * University of Illinois at Urbana-Champaign
44 * http://www.ncsa.uiuc.edu
45 * ________________________________________________________________
48 * by Mark Gates <mgates@nlanr.net>
49 * Ajay Tirumala <tirumala@ncsa.uiuc.edu>
50 * -------------------------------------------------------------------
51 * Has routines the Client and Server classes use in common for
52 * performance testing the network.
53 * Changes in version 1.2.0
54 * for extracting data from files
55 * -------------------------------------------------------------------
70 * ------------------------------------------------------------------- */
75 #include "PerfSocket.hpp"
76 #include "SocketAddr.h"
79 // create an internet socket
80 void MakeSocket(thread_Settings *inSettings)
82 int type = 0, proto = 0, domain =
83 SockAddr_isIPv6(&inSettings->local) ? AF_INET6 :
86 switch (inSettings->mProtocol) {
87 case kProto_TCP: type = SOCK_STREAM; break;
88 case kProto_UDP: type = SOCK_DGRAM; break;
89 case kProto_DCCP: type = SOCK_DCCP; break;
91 inSettings->mSock = socket( domain, type, proto );
93 WARN_errno( inSettings->mSock == INVALID_SOCKET, "socket" );
96 /* -------------------------------------------------------------------
97 * Set socket options before the listen() or connect() calls.
98 * These are optional performance tuning factors.
99 * ------------------------------------------------------------------- */
100 void SetSocketOptions( thread_Settings *inSettings )
103 Socklen_t len = sizeof(int);
105 // check if we're sending multicast, and set TTL
106 if ( isMulticast( inSettings ) && ( inSettings->mTTL > 0 ) ) {
107 val = inSettings->mTTL;
108 #ifdef HAVE_MULTICAST
109 if ( !SockAddr_isIPv6( &inSettings->local ) ) {
110 rc = setsockopt( inSettings->mSock, IPPROTO_IP, IP_MULTICAST_TTL,
113 WARN_errno( rc == SOCKET_ERROR, "multicast ttl" );
115 #ifdef HAVE_IPV6_MULTICAST
117 rc = setsockopt( inSettings->mSock, IPPROTO_IPV6, IPV6_MULTICAST_HOPS,
119 WARN_errno( rc == SOCKET_ERROR, "multicast ttl" );
121 #endif /* IPV6_MULTICAST */
122 #endif /* MULTICAST */
126 // set IP TOS (type-of-service) field
128 if ( inSettings->mTOS > 0 ) {
129 val = inSettings->mTOS;
130 rc = setsockopt( inSettings->mSock, IPPROTO_IP, IP_TOS, &val, len );
131 WARN_errno( rc == SOCKET_ERROR, "setsockopt IP_TOS" );
136 // TCP-specific options
137 if ( inSettings->mProtocol == kProto_TCP ) {
139 // set the TCP window size (socket buffer sizes)
140 // must occur before call to accept() for large window sizes
141 setsock_tcp_windowsize(inSettings->mSock, inSettings->mWinSize,
142 inSettings->mThreadMode == kMode_Client);
143 setsock_tcp_mss( inSettings->mSock, inSettings->mMSS );
146 if ( isNoDelay( inSettings ) ) {
148 rc = setsockopt( inSettings->mSock, IPPROTO_TCP, TCP_NODELAY,
150 WARN_errno( rc == SOCKET_ERROR, "setsockopt TCP_NODELAY" );
154 rc = set_buffer_sock_size(inSettings->mSock, inSettings->mWinSize,
155 inSettings->mThreadMode == kMode_Client);
156 WARN_errno( rc < 0 , "setsockopt for buffer size" );
158 // DCCP-specific options
159 if ( inSettings->mProtocol == kProto_DCCP ) {
161 * We use the service code SC:PERF (0x50455246) from
162 * draft-fairhurst-dccp-serv-codes to identify this service.
164 val = htonl(0x50455246); /* ALWAYS use htonl */
165 rc = setsockopt( inSettings->mSock, SOL_DCCP, DCCP_SOCKOPT_SERVICE,
167 WARN_errno( rc == SOCKET_ERROR, "setsockopt DCCP_SOCKOPT_SERVICE" );