329 lines
9.0 KiB
C
329 lines
9.0 KiB
C
/*-
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* Copyright (c) 1980, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/* From:
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"@(#)mbufs.c 8.1 (Berkeley) 6/6/93"
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"Id: mbufs.c,v 1.5 1997/02/24 20:59:03 wollman Exp"
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*/
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#include <sys/param.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/sysctl.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/tcp.h>
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#include <netinet/tcp_seq.h>
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#include <netinet/tcp_fsm.h>
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#include <netinet/tcp_timer.h>
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#include <netinet/tcp_var.h>
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#include <stdlib.h>
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#include <string.h>
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#include <paths.h>
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#include "systat.h"
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#include "extern.h"
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#include "mode.h"
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static struct tcpstat curstat, initstat, oldstat;
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/*-
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--0 1 2 3 4 5 6 7
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--0123456789012345678901234567890123456789012345678901234567890123456789012345
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01 TCP Connections TCP Packets
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02999999999 connections initiated 999999999 total packets sent
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03999999999 connections accepted 999999999 - data
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04999999999 connections established 999999999 - data (retransmit)
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05999999999 connections dropped 999999999 - ack-only
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06999999999 - in embryonic state 999999999 - window probes
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07999999999 - on retransmit timeout 999999999 - window updates
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08999999999 - by keepalive 999999999 - urgent data only
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09999999999 - from listen queue 999999999 - control
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10 999999999 - resends by PMTU discovery
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11 TCP Timers 999999999 total packets received
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12999999999 potential rtt updates 999999999 - in sequence
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13999999999 - successful 999999999 - completely duplicate
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14999999999 delayed acks sent 999999999 - with some duplicate data
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15999999999 retransmit timeouts 999999999 - out-of-order
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16999999999 persist timeouts 999999999 - duplicate acks
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17999999999 keepalive probes 999999999 - acks
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18999999999 - timeouts 999999999 - window probes
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19 999999999 - window updates
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20 999999999 - bad checksum
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--0123456789012345678901234567890123456789012345678901234567890123456789012345
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--0 1 2 3 4 5 6 7
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*/
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WINDOW *
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opentcp(void)
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{
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return (stdscr);
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}
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void
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closetcp(w)
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WINDOW *w;
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{
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if (w == NULL)
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return;
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wclear(w);
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wrefresh(w);
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}
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void
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labeltcp(void)
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{
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wmove(wnd, 0, 0); wclrtoeol(wnd);
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#define L(row, str) mvwprintw(wnd, row, 10, str)
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#define R(row, str) mvwprintw(wnd, row, 45, str);
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L(1, "TCP Connections"); R(1, "TCP Packets");
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L(2, "connections initiated"); R(2, "total packets sent");
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L(3, "connections accepted"); R(3, "- data");
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L(4, "connections established"); R(4, "- data (retransmit)");
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L(5, "connections dropped"); R(5, "- ack-only");
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L(6, "- in embryonic state"); R(6, "- window probes");
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L(7, "- on retransmit timeout"); R(7, "- window updates");
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L(8, "- by keepalive"); R(8, "- urgent data only");
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L(9, "- from listen queue"); R(9, "- control");
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R(10, "- resends by PMTU discovery");
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L(11, "TCP Timers"); R(11, "total packets received");
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L(12, "potential rtt updates"); R(12, "- in sequence");
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L(13, "- successful"); R(13, "- completely duplicate");
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L(14, "delayed acks sent"); R(14, "- with some duplicate data");
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L(15, "retransmit timeouts"); R(15, "- out-of-order");
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L(16, "persist timeouts"); R(16, "- duplicate acks");
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L(17, "keepalive probes"); R(17, "- acks");
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L(18, "- timeouts"); R(18, "- window probes");
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R(19, "- window updates");
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R(20, "- bad checksum");
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#undef L
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#undef R
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}
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static void
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domode(struct tcpstat *ret)
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{
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const struct tcpstat *sub;
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int divisor = 1;
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switch(currentmode) {
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case display_RATE:
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sub = &oldstat;
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divisor = naptime;
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break;
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case display_DELTA:
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sub = &oldstat;
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break;
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case display_SINCE:
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sub = &initstat;
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break;
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default:
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*ret = curstat;
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return;
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}
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#define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
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DO(tcps_connattempt);
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DO(tcps_accepts);
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DO(tcps_connects);
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DO(tcps_drops);
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DO(tcps_conndrops);
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DO(tcps_closed);
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DO(tcps_segstimed);
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DO(tcps_rttupdated);
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DO(tcps_delack);
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DO(tcps_timeoutdrop);
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DO(tcps_rexmttimeo);
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DO(tcps_persisttimeo);
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DO(tcps_keeptimeo);
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DO(tcps_keepprobe);
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DO(tcps_keepdrops);
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DO(tcps_sndtotal);
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DO(tcps_sndpack);
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DO(tcps_sndbyte);
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DO(tcps_sndrexmitpack);
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DO(tcps_sndrexmitbyte);
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DO(tcps_sndacks);
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DO(tcps_sndprobe);
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DO(tcps_sndurg);
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DO(tcps_sndwinup);
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DO(tcps_sndctrl);
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DO(tcps_rcvtotal);
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DO(tcps_rcvpack);
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DO(tcps_rcvbyte);
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DO(tcps_rcvbadsum);
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DO(tcps_rcvbadoff);
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DO(tcps_rcvshort);
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DO(tcps_rcvduppack);
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DO(tcps_rcvdupbyte);
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DO(tcps_rcvpartduppack);
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DO(tcps_rcvpartdupbyte);
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DO(tcps_rcvoopack);
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DO(tcps_rcvoobyte);
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DO(tcps_rcvpackafterwin);
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DO(tcps_rcvbyteafterwin);
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DO(tcps_rcvafterclose);
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DO(tcps_rcvwinprobe);
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DO(tcps_rcvdupack);
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DO(tcps_rcvacktoomuch);
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DO(tcps_rcvackpack);
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DO(tcps_rcvackbyte);
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DO(tcps_rcvwinupd);
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DO(tcps_pawsdrop);
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DO(tcps_predack);
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DO(tcps_preddat);
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DO(tcps_pcbcachemiss);
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DO(tcps_cachedrtt);
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DO(tcps_cachedrttvar);
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DO(tcps_cachedssthresh);
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DO(tcps_usedrtt);
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DO(tcps_usedrttvar);
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DO(tcps_usedssthresh);
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DO(tcps_persistdrop);
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DO(tcps_badsyn);
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DO(tcps_mturesent);
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DO(tcps_listendrop);
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#undef DO
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}
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void
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showtcp(void)
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{
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struct tcpstat stats;
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memset(&stats, 0, sizeof stats);
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domode(&stats);
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#define DO(stat, row, col) \
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mvwprintw(wnd, row, col, "%9lu", stats.stat)
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#define L(row, stat) DO(stat, row, 0)
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#define R(row, stat) DO(stat, row, 35)
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L(2, tcps_connattempt); R(2, tcps_sndtotal);
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L(3, tcps_accepts); R(3, tcps_sndpack);
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L(4, tcps_connects); R(4, tcps_sndrexmitpack);
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L(5, tcps_drops); R(5, tcps_sndacks);
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L(6, tcps_conndrops); R(6, tcps_sndprobe);
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L(7, tcps_timeoutdrop); R(7, tcps_sndwinup);
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L(8, tcps_keepdrops); R(8, tcps_sndurg);
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L(9, tcps_listendrop); R(9, tcps_sndctrl);
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R(10, tcps_mturesent);
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R(11, tcps_rcvtotal);
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L(12, tcps_segstimed); R(12, tcps_rcvpack);
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L(13, tcps_rttupdated); R(13, tcps_rcvduppack);
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L(14, tcps_delack); R(14, tcps_rcvpartduppack);
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L(15, tcps_rexmttimeo); R(15, tcps_rcvoopack);
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L(16, tcps_persisttimeo); R(16, tcps_rcvdupack);
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L(17, tcps_keepprobe); R(17, tcps_rcvackpack);
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L(18, tcps_keeptimeo); R(18, tcps_rcvwinprobe);
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R(19, tcps_rcvwinupd);
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R(20, tcps_rcvbadsum);
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#undef DO
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#undef L
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#undef R
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}
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int
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inittcp(void)
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{
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size_t len;
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int name[4];
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name[0] = CTL_NET;
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name[1] = PF_INET;
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name[2] = IPPROTO_TCP;
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name[3] = TCPCTL_STATS;
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len = 0;
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if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
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error("sysctl getting tcpstat size failed");
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return 0;
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}
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if (len > sizeof curstat) {
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error("tcpstat structure has grown--recompile systat!");
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return 0;
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}
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if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
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error("sysctl getting tcpstat failed");
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return 0;
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}
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oldstat = initstat;
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return 1;
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}
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void
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resettcp(void)
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{
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size_t len;
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int name[4];
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name[0] = CTL_NET;
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name[1] = PF_INET;
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name[2] = IPPROTO_TCP;
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name[3] = TCPCTL_STATS;
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len = sizeof initstat;
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if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
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error("sysctl getting tcpstat failed");
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}
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oldstat = initstat;
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}
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void
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fetchtcp(void)
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{
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int name[4];
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size_t len;
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oldstat = curstat;
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name[0] = CTL_NET;
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name[1] = PF_INET;
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name[2] = IPPROTO_TCP;
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name[3] = TCPCTL_STATS;
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len = sizeof curstat;
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if (sysctl(name, 4, &curstat, &len, 0, 0) < 0)
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return;
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}
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