129881Swollman/*- 229881Swollman * Copyright (c) 1980, 1992, 1993 329881Swollman * The Regents of the University of California. All rights reserved. 429881Swollman * 529881Swollman * Redistribution and use in source and binary forms, with or without 629881Swollman * modification, are permitted provided that the following conditions 729881Swollman * are met: 829881Swollman * 1. Redistributions of source code must retain the above copyright 929881Swollman * notice, this list of conditions and the following disclaimer. 1029881Swollman * 2. Redistributions in binary form must reproduce the above copyright 1129881Swollman * notice, this list of conditions and the following disclaimer in the 1229881Swollman * documentation and/or other materials provided with the distribution. 1329881Swollman * 4. Neither the name of the University nor the names of its contributors 1429881Swollman * may be used to endorse or promote products derived from this software 1529881Swollman * without specific prior written permission. 1629881Swollman * 1729881Swollman * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 1829881Swollman * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1929881Swollman * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2029881Swollman * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2129881Swollman * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2229881Swollman * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2329881Swollman * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2429881Swollman * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2529881Swollman * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2629881Swollman * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2729881Swollman * SUCH DAMAGE. 2829881Swollman */ 2929881Swollman 30126229Sbde#if 0 31126229Sbde#ifndef lint 32126229Sbde/* From: */ 33126229Sbdestatic char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93"; 34126229Sbdestatic const char rcsid[] = 35126229Sbde "Id: mbufs.c,v 1.5 1997/02/24 20:59:03 wollman Exp"; 36126229Sbde#endif /* not lint */ 37126229Sbde#endif 38126229Sbde 3987715Smarkm#include <sys/cdefs.h> 4087715Smarkm__FBSDID("$FreeBSD: stable/11/usr.bin/systat/tcp.c 368931 2021-01-05 20:02:55Z mr $"); 4187715Smarkm 4229881Swollman#include <sys/param.h> 4329881Swollman#include <sys/types.h> 4429881Swollman#include <sys/socket.h> 4529881Swollman#include <sys/sysctl.h> 4629881Swollman 4729881Swollman#include <netinet/in.h> 4829881Swollman#include <netinet/in_systm.h> 4929881Swollman#include <netinet/ip.h> 5029881Swollman#include <netinet/tcp.h> 5129881Swollman#include <netinet/tcp_seq.h> 5229881Swollman#include <netinet/tcp_fsm.h> 5329881Swollman#include <netinet/tcp_timer.h> 5429881Swollman#include <netinet/tcp_var.h> 5529881Swollman 56368931Smr#include <inttypes.h> 57200462Sdelphij#include <stdlib.h> 5829881Swollman#include <string.h> 59200462Sdelphij#include <paths.h> 6087715Smarkm 6129881Swollman#include "systat.h" 6229881Swollman#include "extern.h" 6329881Swollman#include "mode.h" 6429881Swollman 6529881Swollmanstatic struct tcpstat curstat, initstat, oldstat; 6629881Swollman 6729881Swollman/*- 6829881Swollman--0 1 2 3 4 5 6 7 6929881Swollman--0123456789012345678901234567890123456789012345678901234567890123456789012345 70170784Sjhb00 TCP Connections TCP Packets 71170784Sjhb01999999999999 connections initiated 999999999999 total packets sent 72170784Sjhb02999999999999 connections accepted 999999999999 - data 73170784Sjhb03999999999999 connections established 999999999999 - data (retransmit by dupack) 74170784Sjhb04999999999999 connections dropped 999999999999 - data (retransmit by sack) 75170784Sjhb05999999999999 - in embryonic state 999999999999 - ack-only 76170784Sjhb06999999999999 - on retransmit timeout 999999999999 - window probes 77170784Sjhb07999999999999 - by keepalive 999999999999 - window updates 78170784Sjhb08999999999999 - from listen queue 999999999999 - urgent data only 79170784Sjhb09 999999999999 - control 80170784Sjhb10 999999999999 - resends by PMTU discovery 81170784Sjhb11 TCP Timers 999999999999 total packets received 82170784Sjhb12999999999999 potential rtt updates 999999999999 - in sequence 83170784Sjhb13999999999999 - successful 999999999999 - completely duplicate 84170784Sjhb14999999999999 delayed acks sent 999999999999 - with some duplicate data 85170784Sjhb15999999999999 retransmit timeouts 999999999999 - out-of-order 86170784Sjhb16999999999999 persist timeouts 999999999999 - duplicate acks 87170784Sjhb17999999999999 keepalive probes 999999999999 - acks 88170784Sjhb18999999999999 - timeouts 999999999999 - window probes 89170784Sjhb19 999999999999 - window updates 90170784Sjhb20 999999999999 - bad checksum 9129881Swollman--0123456789012345678901234567890123456789012345678901234567890123456789012345 9229881Swollman--0 1 2 3 4 5 6 7 9329881Swollman*/ 9429881Swollman 9529881SwollmanWINDOW * 9629881Swollmanopentcp(void) 9729881Swollman{ 98158160Sbde return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0)); 9929881Swollman} 10029881Swollman 10129881Swollmanvoid 102175387Sdelphijclosetcp(WINDOW *w) 10329881Swollman{ 10429881Swollman if (w == NULL) 10529881Swollman return; 10629881Swollman wclear(w); 10729881Swollman wrefresh(w); 108158160Sbde delwin(w); 10929881Swollman} 11029881Swollman 11129881Swollmanvoid 11229881Swollmanlabeltcp(void) 11329881Swollman{ 11429881Swollman wmove(wnd, 0, 0); wclrtoeol(wnd); 115170784Sjhb#define L(row, str) mvwprintw(wnd, row, 13, str) 116170784Sjhb#define R(row, str) mvwprintw(wnd, row, 51, str); 117158160Sbde L(0, "TCP Connections"); R(0, "TCP Packets"); 118158160Sbde L(1, "connections initiated"); R(1, "total packets sent"); 119158160Sbde L(2, "connections accepted"); R(2, "- data"); 120170780Sjhb L(3, "connections established"); R(3, "- data (retransmit by dupack)"); 121170780Sjhb L(4, "connections dropped"); R(4, "- data (retransmit by sack)"); 122170780Sjhb L(5, "- in embryonic state"); R(5, "- ack-only"); 123170780Sjhb L(6, "- on retransmit timeout"); R(6, "- window probes"); 124170780Sjhb L(7, "- by keepalive"); R(7, "- window updates"); 125170780Sjhb L(8, "- from listen queue"); R(8, "- urgent data only"); 126170782Sjhb R(9, "- control"); 127170782Sjhb R(10, "- resends by PMTU discovery"); 128170782Sjhb L(11, "TCP Timers"); R(11, "total packets received"); 129170782Sjhb L(12, "potential rtt updates"); R(12, "- in sequence"); 130170782Sjhb L(13, "- successful"); R(13, "- completely duplicate"); 131170782Sjhb L(14, "delayed acks sent"); R(14, "- with some duplicate data"); 132170782Sjhb L(15, "retransmit timeouts"); R(15, "- out-of-order"); 133170782Sjhb L(16, "persist timeouts"); R(16, "- duplicate acks"); 134170782Sjhb L(17, "keepalive probes"); R(17, "- acks"); 135170782Sjhb L(18, "- timeouts"); R(18, "- window probes"); 136170782Sjhb R(19, "- window updates"); 137170782Sjhb R(20, "- bad checksum"); 13829881Swollman#undef L 13929881Swollman#undef R 14029881Swollman} 14129881Swollman 14229881Swollmanstatic void 14329881Swollmandomode(struct tcpstat *ret) 14429881Swollman{ 14529881Swollman const struct tcpstat *sub; 14640060Sobrien int divisor = 1; 14729881Swollman 14829881Swollman switch(currentmode) { 14929881Swollman case display_RATE: 15029881Swollman sub = &oldstat; 151240605Smelifaro divisor = (delay > 1000000) ? delay / 1000000 : 1; 15229881Swollman break; 15329881Swollman case display_DELTA: 15429881Swollman sub = &oldstat; 15529881Swollman break; 15629881Swollman case display_SINCE: 15729881Swollman sub = &initstat; 15829881Swollman break; 15929881Swollman default: 16029881Swollman *ret = curstat; 16129881Swollman return; 16229881Swollman } 16329881Swollman#define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor 16429881Swollman DO(tcps_connattempt); 16529881Swollman DO(tcps_accepts); 16629881Swollman DO(tcps_connects); 16729881Swollman DO(tcps_drops); 16829881Swollman DO(tcps_conndrops); 16929881Swollman DO(tcps_closed); 17029881Swollman DO(tcps_segstimed); 17129881Swollman DO(tcps_rttupdated); 17229881Swollman DO(tcps_delack); 17329881Swollman DO(tcps_timeoutdrop); 17429881Swollman DO(tcps_rexmttimeo); 17529881Swollman DO(tcps_persisttimeo); 17629881Swollman DO(tcps_keeptimeo); 17729881Swollman DO(tcps_keepprobe); 17829881Swollman DO(tcps_keepdrops); 17929881Swollman 18029881Swollman DO(tcps_sndtotal); 18129881Swollman DO(tcps_sndpack); 18229881Swollman DO(tcps_sndbyte); 18329881Swollman DO(tcps_sndrexmitpack); 184170780Sjhb DO(tcps_sack_rexmits); 18529881Swollman DO(tcps_sndacks); 18629881Swollman DO(tcps_sndprobe); 18729881Swollman DO(tcps_sndurg); 18829881Swollman DO(tcps_sndwinup); 18929881Swollman DO(tcps_sndctrl); 19029881Swollman 19129881Swollman DO(tcps_rcvtotal); 19229881Swollman DO(tcps_rcvpack); 19329881Swollman DO(tcps_rcvbyte); 19429881Swollman DO(tcps_rcvbadsum); 19529881Swollman DO(tcps_rcvbadoff); 19629881Swollman DO(tcps_rcvshort); 19729881Swollman DO(tcps_rcvduppack); 19829881Swollman DO(tcps_rcvdupbyte); 19929881Swollman DO(tcps_rcvpartduppack); 20029881Swollman DO(tcps_rcvpartdupbyte); 20129881Swollman DO(tcps_rcvoopack); 20229881Swollman DO(tcps_rcvoobyte); 20329881Swollman DO(tcps_rcvpackafterwin); 20429881Swollman DO(tcps_rcvbyteafterwin); 20529881Swollman DO(tcps_rcvafterclose); 20629881Swollman DO(tcps_rcvwinprobe); 20729881Swollman DO(tcps_rcvdupack); 20829881Swollman DO(tcps_rcvacktoomuch); 20929881Swollman DO(tcps_rcvackpack); 21029881Swollman DO(tcps_rcvackbyte); 21129881Swollman DO(tcps_rcvwinupd); 21229881Swollman DO(tcps_pawsdrop); 21329881Swollman DO(tcps_predack); 21429881Swollman DO(tcps_preddat); 21529881Swollman DO(tcps_pcbcachemiss); 21629881Swollman DO(tcps_cachedrtt); 21729881Swollman DO(tcps_cachedrttvar); 21829881Swollman DO(tcps_cachedssthresh); 21929881Swollman DO(tcps_usedrtt); 22029881Swollman DO(tcps_usedrttvar); 22129881Swollman DO(tcps_usedssthresh); 22229881Swollman DO(tcps_persistdrop); 22329881Swollman DO(tcps_badsyn); 22429881Swollman DO(tcps_mturesent); 22529881Swollman DO(tcps_listendrop); 22629881Swollman#undef DO 22729881Swollman} 228158161Sbde 22929881Swollmanvoid 23029881Swollmanshowtcp(void) 23129881Swollman{ 23229881Swollman struct tcpstat stats; 23329881Swollman 23429881Swollman memset(&stats, 0, sizeof stats); 23529881Swollman domode(&stats); 23629881Swollman 23729881Swollman#define DO(stat, row, col) \ 238368931Smr mvwprintw(wnd, row, col, "%12"PRIu64, stats.stat) 23929881Swollman#define L(row, stat) DO(stat, row, 0) 240170784Sjhb#define R(row, stat) DO(stat, row, 38) 241158160Sbde L(1, tcps_connattempt); R(1, tcps_sndtotal); 242158160Sbde L(2, tcps_accepts); R(2, tcps_sndpack); 243158160Sbde L(3, tcps_connects); R(3, tcps_sndrexmitpack); 244170780Sjhb L(4, tcps_drops); R(4, tcps_sack_rexmits); 245170780Sjhb L(5, tcps_conndrops); R(5, tcps_sndacks); 246170780Sjhb L(6, tcps_timeoutdrop); R(6, tcps_sndprobe); 247170780Sjhb L(7, tcps_keepdrops); R(7, tcps_sndwinup); 248170780Sjhb L(8, tcps_listendrop); R(8, tcps_sndurg); 249170782Sjhb R(9, tcps_sndctrl); 250170782Sjhb R(10, tcps_mturesent); 251170782Sjhb R(11, tcps_rcvtotal); 252170780Sjhb L(12, tcps_segstimed); R(12, tcps_rcvpack); 253170780Sjhb L(13, tcps_rttupdated); R(13, tcps_rcvduppack); 254170780Sjhb L(14, tcps_delack); R(14, tcps_rcvpartduppack); 255170780Sjhb L(15, tcps_rexmttimeo); R(15, tcps_rcvoopack); 256170780Sjhb L(16, tcps_persisttimeo); R(16, tcps_rcvdupack); 257170780Sjhb L(17, tcps_keepprobe); R(17, tcps_rcvackpack); 258170780Sjhb L(18, tcps_keeptimeo); R(18, tcps_rcvwinprobe); 259170782Sjhb R(19, tcps_rcvwinupd); 260170782Sjhb R(20, tcps_rcvbadsum); 26129881Swollman#undef DO 26229881Swollman#undef L 26329881Swollman#undef R 26429881Swollman} 26529881Swollman 26629881Swollmanint 26729881Swollmaninittcp(void) 26829881Swollman{ 26929881Swollman size_t len; 27029881Swollman int name[4]; 27129881Swollman 27229881Swollman name[0] = CTL_NET; 27329881Swollman name[1] = PF_INET; 27429881Swollman name[2] = IPPROTO_TCP; 27529881Swollman name[3] = TCPCTL_STATS; 27629881Swollman 27729881Swollman len = 0; 27829881Swollman if (sysctl(name, 4, 0, &len, 0, 0) < 0) { 27929881Swollman error("sysctl getting tcpstat size failed"); 28029881Swollman return 0; 28129881Swollman } 28229881Swollman if (len > sizeof curstat) { 28329881Swollman error("tcpstat structure has grown--recompile systat!"); 28429881Swollman return 0; 28529881Swollman } 28629881Swollman if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) { 28729881Swollman error("sysctl getting tcpstat failed"); 28829881Swollman return 0; 28929881Swollman } 29029881Swollman oldstat = initstat; 29129881Swollman return 1; 29229881Swollman} 29329881Swollman 29429881Swollmanvoid 29529881Swollmanresettcp(void) 29629881Swollman{ 29729881Swollman size_t len; 29829881Swollman int name[4]; 29929881Swollman 30029881Swollman name[0] = CTL_NET; 30129881Swollman name[1] = PF_INET; 30229881Swollman name[2] = IPPROTO_TCP; 30329881Swollman name[3] = TCPCTL_STATS; 30429881Swollman 30529881Swollman len = sizeof initstat; 30629881Swollman if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) { 30729881Swollman error("sysctl getting tcpstat failed"); 30829881Swollman } 30929881Swollman oldstat = initstat; 31029881Swollman} 31129881Swollman 31229881Swollmanvoid 31329881Swollmanfetchtcp(void) 31429881Swollman{ 31529881Swollman int name[4]; 31629881Swollman size_t len; 31729881Swollman 31829881Swollman oldstat = curstat; 31929881Swollman name[0] = CTL_NET; 32029881Swollman name[1] = PF_INET; 32129881Swollman name[2] = IPPROTO_TCP; 32229881Swollman name[3] = TCPCTL_STATS; 32329881Swollman len = sizeof curstat; 32429881Swollman 32529881Swollman if (sysctl(name, 4, &curstat, &len, 0, 0) < 0) 32629881Swollman return; 32729881Swollman} 328