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NetBSD/usr.bin/systat/tcp.c

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/* $NetBSD: tcp.c,v 1.11 2005/02/26 22:12:34 dsl Exp $ */
/*
* Copyright (c) 1999, 2000 Andrew Doran <ad@NetBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: tcp.c,v 1.11 2005/02/26 22:12:34 dsl Exp $");
#endif /* not lint */
#include <sys/param.h>
#include <sys/sysctl.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/tcp.h>
#include <netinet/tcp_timer.h>
#include <netinet/tcp_var.h>
#include <string.h>
#include "systat.h"
#include "extern.h"
#define LHD(row, str) mvwprintw(wnd, row, 10, str)
#define RHD(row, str) mvwprintw(wnd, row, 45, str)
#define SHOW(row, col, stat) \
mvwprintw(wnd, row, col, "%9llu", (unsigned long long)curstat.stat)
enum update {
UPDATE_TIME,
UPDATE_BOOT,
UPDATE_RUN,
};
static enum update update = UPDATE_TIME;
static struct tcpstat curstat;
static struct tcpstat newstat;
static struct tcpstat oldstat;
static struct nlist namelist[] = {
{ "_tcpstat" },
{ "" }
};
WINDOW *
opentcp(void)
{
return (subwin(stdscr, -1, 0, 5, 0));
}
void
closetcp(WINDOW *w)
{
if (w != NULL) {
wclear(w);
wrefresh(w);
delwin(w);
}
}
void
labeltcp(void)
{
wmove(wnd, 0, 0); wclrtoeol(wnd);
LHD(0, "connections initiated");
LHD(1, "connections accepted");
LHD(2, "connections established");
LHD(4, "connections dropped");
LHD(5, " in embryonic state");
LHD(6, " on retransmit timeout");
LHD(7, " by keepalive");
LHD(8, " by persist");
LHD(10, "potential rtt updates");
LHD(11, "successful rtt updates");
LHD(12, "delayed acks sent");
LHD(13, "retransmit timeouts");
LHD(14, "persist timeouts");
LHD(15, "keepalive probes");
LHD(16, "keepalive timeouts");
RHD(9, "total TCP packets received");
RHD(10, " in sequence");
RHD(11, " completely duplicate");
RHD(12, " with some duplicate data");
RHD(13, " out of order");
RHD(14, " duplicate acks");
RHD(15, " acks");
RHD(16, " window probes");
RHD(17, " window updates");
RHD(0, "total TCP packets sent");
RHD(1, " data");
RHD(2, " data (retransmit)");
RHD(3, " ack-only");
RHD(4, " window probes");
RHD(5, " window updates");
RHD(6, " urgent data only");
RHD(7, " control");
}
void
showtcpsyn(void)
{
SHOW(0, 0, tcps_sc_added);
SHOW(1, 0, tcps_sc_completed);
SHOW(2, 0, tcps_sc_timed_out);
SHOW(3, 0, tcps_sc_dupesyn);
SHOW(4, 0, tcps_sc_collisions);
SHOW(5, 0, tcps_sc_retransmitted);
SHOW(6, 0, tcps_sc_aborted);
SHOW(7, 0, tcps_sc_overflowed);
SHOW(8, 0, tcps_sc_reset);
SHOW(9, 0, tcps_sc_unreach);
SHOW(10, 0, tcps_sc_bucketoverflow);
SHOW(11, 0, tcps_sc_dropped);
}
void
labeltcpsyn(void)
{
wmove(wnd, 0, 0); wclrtoeol(wnd);
LHD(0, "entries added");
LHD(1, "connections completed");
LHD(2, "entries timed out");
LHD(3, "duplicate SYNs received");
LHD(4, "hash collisions");
LHD(5, "retransmissions");
LHD(6, "entries aborted (no memory)");
LHD(7, "dropped (overflow)");
LHD(8, "dropped (RST)");
LHD(9, "dropped (ICMP UNRCH)");
LHD(10, "dropped (bucket overflow)");
LHD(11, "dropped (unreachable/no memory)");
}
void
showtcp(void)
{
SHOW(0, 0, tcps_connattempt);
SHOW(1, 0, tcps_accepts);
SHOW(2, 0, tcps_connects);
SHOW(4, 0, tcps_drops);
SHOW(5, 0, tcps_conndrops);
SHOW(6, 0, tcps_timeoutdrop);
SHOW(7, 0, tcps_keepdrops);
SHOW(8, 0, tcps_persistdrops);
SHOW(10, 0, tcps_segstimed);
SHOW(11, 0, tcps_rttupdated);
SHOW(12, 0, tcps_delack);
SHOW(13, 0, tcps_rexmttimeo);
SHOW(14, 0, tcps_persisttimeo);
SHOW(15, 0, tcps_keepprobe);
SHOW(16, 0, tcps_keeptimeo);
SHOW(0, 35, tcps_sndtotal);
SHOW(1, 35, tcps_sndpack);
SHOW(2, 35, tcps_sndrexmitpack);
SHOW(3, 35, tcps_sndacks);
SHOW(4, 35, tcps_sndprobe);
SHOW(5, 35, tcps_sndwinup);
SHOW(6, 35, tcps_sndurg);
SHOW(7, 35, tcps_sndctrl);
SHOW(9, 35, tcps_rcvtotal);
SHOW(10, 35, tcps_rcvpack);
SHOW(11, 35, tcps_rcvduppack);
SHOW(12, 35, tcps_rcvpartduppack);
SHOW(13, 35, tcps_rcvoopack);
SHOW(14, 35, tcps_rcvdupack);
SHOW(15, 35, tcps_rcvackpack);
SHOW(16, 35, tcps_rcvwinprobe);
SHOW(17, 35, tcps_rcvwinupd);
}
int
inittcp(void)
{
if (namelist[0].n_type == 0) {
if (kvm_nlist(kd, namelist)) {
nlisterr(namelist);
return(0);
}
if (namelist[0].n_type == 0) {
error("No namelist");
return(0);
}
}
return 1;
}
void
fetchtcp(void)
{
KREAD((void *)namelist[0].n_value, &newstat, sizeof(newstat));
ADJINETCTR(curstat, oldstat, newstat, tcps_connattempt);
ADJINETCTR(curstat, oldstat, newstat, tcps_accepts);
ADJINETCTR(curstat, oldstat, newstat, tcps_connects);
ADJINETCTR(curstat, oldstat, newstat, tcps_drops);
ADJINETCTR(curstat, oldstat, newstat, tcps_conndrops);
ADJINETCTR(curstat, oldstat, newstat, tcps_timeoutdrop);
ADJINETCTR(curstat, oldstat, newstat, tcps_keepdrops);
ADJINETCTR(curstat, oldstat, newstat, tcps_persistdrops);
ADJINETCTR(curstat, oldstat, newstat, tcps_segstimed);
ADJINETCTR(curstat, oldstat, newstat, tcps_rttupdated);
ADJINETCTR(curstat, oldstat, newstat, tcps_delack);
ADJINETCTR(curstat, oldstat, newstat, tcps_rexmttimeo);
ADJINETCTR(curstat, oldstat, newstat, tcps_persisttimeo);
ADJINETCTR(curstat, oldstat, newstat, tcps_keepprobe);
ADJINETCTR(curstat, oldstat, newstat, tcps_keeptimeo);
ADJINETCTR(curstat, oldstat, newstat, tcps_sndtotal);
ADJINETCTR(curstat, oldstat, newstat, tcps_sndpack);
ADJINETCTR(curstat, oldstat, newstat, tcps_sndrexmitpack);
ADJINETCTR(curstat, oldstat, newstat, tcps_sndacks);
ADJINETCTR(curstat, oldstat, newstat, tcps_sndprobe);
ADJINETCTR(curstat, oldstat, newstat, tcps_sndwinup);
ADJINETCTR(curstat, oldstat, newstat, tcps_sndurg);
ADJINETCTR(curstat, oldstat, newstat, tcps_sndctrl);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvtotal);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvpack);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvduppack);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvpartduppack);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvoopack);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvdupack);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvackpack);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvwinprobe);
ADJINETCTR(curstat, oldstat, newstat, tcps_rcvwinupd);
if (update == UPDATE_TIME)
memcpy(&oldstat, &newstat, sizeof(oldstat));
}
void
tcp_boot(char *args)
{
memset(&oldstat, 0, sizeof(oldstat));
update = UPDATE_BOOT;
}
void
tcp_run(char *args)
{
if (update != UPDATE_RUN) {
memcpy(&oldstat, &newstat, sizeof(oldstat));
update = UPDATE_RUN;
}
}
void
tcp_time(char *args)
{
if (update != UPDATE_TIME) {
memcpy(&oldstat, &newstat, sizeof(oldstat));
update = UPDATE_TIME;
}
}
void
tcp_zero(char *args)
{
if (update == UPDATE_RUN)
memcpy(&oldstat, &newstat, sizeof(oldstat));
}
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