1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
/*---------------------------------------------------------------
* Copyright (c) 2021
* Broadcom Corporation
* All Rights Reserved.
*---------------------------------------------------------------
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated
* documentation files (the "Software"), to deal in the Software
* without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute,
* sublicense, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and
* the following disclaimers.
*
*
* Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimers in the documentation and/or other materials
* provided with the distribution.
*
*
* Neither the name of Broadcom Coporation,
* nor the names of its contributors may be used to endorse
* or promote products derived from this Software without
* specific prior written permission.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE CONTIBUTORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
* ________________________________________________________________
*
* gettcpinfo.c
* Suppport for tcp info in a portable way
*
* by Robert J. McMahon (rjmcmahon@rjmcmahon.com, bob.mcmahon@broadcom.com)
* -------------------------------------------------------------------
*/
#include "headers.h"
#include "gettcpinfo.h"
#ifdef HAVE_THREAD_DEBUG
// needed for thread_debug
#include "Thread.h"
#endif
#if HAVE_TCP_STATS
inline void gettcpinfo (int sock, struct iperf_tcpstats *stats) {
assert(stats);
#if HAVE_DECL_TCP_INFO
struct tcp_info tcp_info_buf;
socklen_t tcp_info_length = sizeof(struct tcp_info);
if ((sock > 0) && !(getsockopt(sock, IPPROTO_TCP, TCP_INFO, &tcp_info_buf, &tcp_info_length) < 0)) {
stats->cwnd = tcp_info_buf.tcpi_snd_cwnd * tcp_info_buf.tcpi_snd_mss / 1024;
stats->rtt = tcp_info_buf.tcpi_rtt;
stats->rttvar = tcp_info_buf.tcpi_rttvar;
stats->retry_tot = tcp_info_buf.tcpi_total_retrans;
stats->mss_negotiated = tcp_info_buf.tcpi_snd_mss;
stats->isValid = true;
#elif HAVE_DECL_TCP_CONNECTION_INFO
struct tcp_connection_info tcp_info_buf;
socklen_t tcp_info_length = sizeof(struct tcp_connection_info);
if ((sock > 0) && !(getsockopt(sock, IPPROTO_TCP, TCP_CONNECTION_INFO, &tcp_info_buf, &tcp_info_length) < 0)) {
#ifdef __APPLE__
stats->cwnd = tcp_info_buf.tcpi_snd_cwnd / 1024;
#else
stats->cwnd = tcp_info_buf.tcpi_snd_cwnd * tcp_info_buf.tcpi_maxseg / 1024;
#endif
stats->rtt = tcp_info_buf.tcpi_rttcur * 1000; // OS X units is ms
stats->rttvar = tcp_info_buf.tcpi_rttvar;
stats->retry_tot = tcp_info_buf.tcpi_txretransmitpackets;
stats->mss_negotiated = tcp_info_buf.tcpi_maxseg;
stats->isValid = true;
#endif
} else {
stats->rtt = 1;
stats->isValid = false;
}
}
inline void tcpstats_copy (struct iperf_tcpstats *stats_dst, struct iperf_tcpstats *stats_src) {
stats_dst->cwnd = stats_src->cwnd;
stats_dst->rtt = stats_src->rtt;
stats_dst->rttvar = stats_src->rttvar;
stats_dst->mss_negotiated = stats_src->mss_negotiated;
stats_dst->retry_tot = stats_src->retry_tot;
stats_dst->connecttime = stats_src->connecttime;
stats_dst->isValid = stats_src->isValid;
}
#else
#if WIN32
inline void gettcpinfo (SOCKET sock, struct iperf_tcpstats *stats) {
#else
inline void gettcpinfo (int sock, struct iperf_tcpstats *stats) {
#endif
stats->rtt = 1;
stats->isValid = false;
};
inline void tcpstats_copy (struct iperf_tcpstats *stats_dst, struct iperf_tcpstats *stats_src) {
stats_dst->rtt = stats_src->rtt;
stats_dst->isValid = stats_src->isValid;
}
#endif
|
