290 lines
6.6 KiB
C
290 lines
6.6 KiB
C
/* $NetBSD: tcp.c,v 1.15 2008/04/10 17:16:39 thorpej 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 1.15 2008/04/10 17:16:39 thorpej 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 uint64_t curstat[TCP_NSTATS];
|
|
static uint64_t newstat[TCP_NSTATS];
|
|
static uint64_t oldstat[TCP_NSTATS];
|
|
|
|
static struct nlist namelist[] = {
|
|
{ .n_name = "_tcpstat" },
|
|
{ .n_name = NULL }
|
|
};
|
|
|
|
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, TCP_STAT_SC_ADDED);
|
|
SHOW(1, 0, TCP_STAT_SC_COMPLETED);
|
|
SHOW(2, 0, TCP_STAT_SC_TIMED_OUT);
|
|
SHOW(3, 0, TCP_STAT_SC_DUPESYN);
|
|
SHOW(4, 0, TCP_STAT_SC_COLLISIONS);
|
|
SHOW(5, 0, TCP_STAT_SC_RETRANSMITTED);
|
|
SHOW(6, 0, TCP_STAT_SC_ABORTED);
|
|
SHOW(7, 0, TCP_STAT_SC_OVERFLOWED);
|
|
SHOW(8, 0, TCP_STAT_SC_RESET);
|
|
SHOW(9, 0, TCP_STAT_SC_UNREACH);
|
|
SHOW(10, 0, TCP_STAT_SC_BUCKETOVERFLOW);
|
|
SHOW(11, 0, TCP_STAT_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, TCP_STAT_CONNATTEMPT);
|
|
SHOW(1, 0, TCP_STAT_ACCEPTS);
|
|
SHOW(2, 0, TCP_STAT_CONNECTS);
|
|
|
|
SHOW(4, 0, TCP_STAT_DROPS);
|
|
SHOW(5, 0, TCP_STAT_CONNDROPS);
|
|
SHOW(6, 0, TCP_STAT_TIMEOUTDROP);
|
|
SHOW(7, 0, TCP_STAT_KEEPDROPS);
|
|
SHOW(8, 0, TCP_STAT_PERSISTDROPS);
|
|
|
|
SHOW(10, 0, TCP_STAT_SEGSTIMED);
|
|
SHOW(11, 0, TCP_STAT_RTTUPDATED);
|
|
SHOW(12, 0, TCP_STAT_DELACK);
|
|
SHOW(13, 0, TCP_STAT_REXMTTIMEO);
|
|
SHOW(14, 0, TCP_STAT_PERSISTTIMEO);
|
|
SHOW(15, 0, TCP_STAT_KEEPPROBE);
|
|
SHOW(16, 0, TCP_STAT_KEEPTIMEO);
|
|
|
|
SHOW(0, 35, TCP_STAT_SNDTOTAL);
|
|
SHOW(1, 35, TCP_STAT_SNDPACK);
|
|
SHOW(2, 35, TCP_STAT_SNDREXMITPACK);
|
|
|
|
SHOW(3, 35, TCP_STAT_SNDACKS);
|
|
SHOW(4, 35, TCP_STAT_SNDPROBE);
|
|
SHOW(5, 35, TCP_STAT_SNDWINUP);
|
|
SHOW(6, 35, TCP_STAT_SNDURG);
|
|
SHOW(7, 35, TCP_STAT_SNDCTRL);
|
|
|
|
SHOW(9, 35, TCP_STAT_RCVTOTAL);
|
|
SHOW(10, 35, TCP_STAT_RCVPACK);
|
|
SHOW(11, 35, TCP_STAT_RCVDUPPACK);
|
|
SHOW(12, 35, TCP_STAT_RCVPARTDUPPACK);
|
|
SHOW(13, 35, TCP_STAT_RCVOOPACK);
|
|
SHOW(14, 35, TCP_STAT_RCVDUPACK);
|
|
SHOW(15, 35, TCP_STAT_RCVACKPACK);
|
|
SHOW(16, 35, TCP_STAT_RCVWINPROBE);
|
|
SHOW(17, 35, TCP_STAT_RCVWINUPD);
|
|
}
|
|
|
|
int
|
|
inittcp(void)
|
|
{
|
|
|
|
if (! use_sysctl) {
|
|
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)
|
|
{
|
|
int i;
|
|
|
|
if (use_sysctl) {
|
|
size_t size = sizeof(newstat);
|
|
|
|
if (sysctlbyname("net.inet.tcp.stats", newstat, &size,
|
|
NULL, 0) == -1)
|
|
return;
|
|
} else {
|
|
KREAD((void *)namelist[0].n_value, newstat, sizeof(newstat));
|
|
}
|
|
|
|
for (i = 0; i < TCP_NSTATS; i++)
|
|
xADJINETCTR(curstat, oldstat, newstat, i);
|
|
|
|
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));
|
|
}
|