/* $NetBSD: icmp.c,v 1.13 2014/06/03 22:22:41 joerg Exp $ */
/*
* Copyright (c) 1999, 2000 Andrew Doran <
[email protected]>
* 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: icmp.c,v 1.13 2014/06/03 22:22:41 joerg 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_icmp.h>
#include <netinet/icmp_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 BD(row, str) LHD(row, str); RHD(row, str)
#define SHOW(stat, row, col) \
mvwprintw(wnd, row, col, "%9llu", (unsigned long long)curstat[stat])
#define SHOW2(type, row) SHOW(ICMP_STAT_INHIST + type, row, 0); \
SHOW(ICMP_STAT_OUTHIST + type, row, 35)
enum update {
UPDATE_TIME,
UPDATE_BOOT,
UPDATE_RUN,
};
static enum update update = UPDATE_TIME;
static uint64_t curstat[ICMP_NSTATS];
static uint64_t newstat[ICMP_NSTATS];
static uint64_t oldstat[ICMP_NSTATS];
WINDOW *
openicmp(void)
{
return (subwin(stdscr, -1, 0, 5, 0));
}
void
closeicmp(WINDOW *w)
{
if (w != NULL) {
wclear(w);
wrefresh(w);
delwin(w);
}
}
void
labelicmp(void)
{
wmove(wnd, 0, 0); wclrtoeol(wnd);
mvwprintw(wnd, 1, 0, "------------ ICMP input -----------");
mvwprintw(wnd, 1, 36, "------------- ICMP output ---------------");
mvwprintw(wnd, 8, 0, "---------- Input histogram --------");
mvwprintw(wnd, 8, 36, "---------- Output histogram -------------");
LHD(3, "with bad code");
LHD(4, "with bad length");
LHD(5, "with bad checksum");
LHD(6, "with insufficient data");
RHD(3, "errors generated");
RHD(4, "suppressed - original too short");
RHD(5, "suppressed - original was ICMP");
RHD(6, "responses sent");
BD(2, "total messages");
BD(9, "echo response");
BD(10, "echo request");
BD(11, "destination unreachable");
BD(12, "redirect");
BD(13, "time-to-live exceeded");
BD(14, "parameter problem");
LHD(15, "router advertisement");
RHD(15, "router solicitation");
}
void
showicmp(void)
{
u_long tin, tout;
int i;
for (i = tin = tout = 0; i <= ICMP_MAXTYPE; i++) {
tin += curstat[ICMP_STAT_INHIST + i];
tout += curstat[ICMP_STAT_OUTHIST + i];
}
tin += curstat[ICMP_STAT_BADCODE] + curstat[ICMP_STAT_BADLEN] +
curstat[ICMP_STAT_CHECKSUM] + curstat[ICMP_STAT_TOOSHORT];
mvwprintw(wnd, 2, 0, "%9lu", tin);
mvwprintw(wnd, 2, 35, "%9lu", tout);
SHOW(ICMP_STAT_BADCODE, 3, 0);
SHOW(ICMP_STAT_BADLEN, 4, 0);
SHOW(ICMP_STAT_CHECKSUM, 5, 0);
SHOW(ICMP_STAT_TOOSHORT, 6, 0);
SHOW(ICMP_STAT_ERROR, 3, 35);
SHOW(ICMP_STAT_OLDSHORT, 4, 35);
SHOW(ICMP_STAT_OLDICMP, 5, 35);
SHOW(ICMP_STAT_REFLECT, 6, 35);
SHOW2(ICMP_ECHOREPLY, 9);
SHOW2(ICMP_ECHO, 10);
SHOW2(ICMP_UNREACH, 11);
SHOW2(ICMP_REDIRECT, 12);
SHOW2(ICMP_TIMXCEED, 13);
SHOW2(ICMP_PARAMPROB, 14);
SHOW(ICMP_STAT_INHIST + ICMP_ROUTERADVERT, 15, 0);
SHOW(ICMP_STAT_OUTHIST + ICMP_ROUTERSOLICIT, 15, 35);
}
int
initicmp(void)
{
return (1);
}
void
fetchicmp(void)
{
size_t i, size = sizeof(newstat);
if (sysctlbyname("net.inet.icmp.stats", newstat, &size, NULL, 0) == -1)
return;
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_BADCODE);
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_BADLEN);
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_CHECKSUM);
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_TOOSHORT);
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_ERROR);
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_OLDSHORT);
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_OLDICMP);
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_REFLECT);
for (i = 0; i <= ICMP_MAXTYPE; i++) {
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_INHIST + i);
xADJINETCTR(curstat, oldstat, newstat, ICMP_STAT_OUTHIST + i);
}
if (update == UPDATE_TIME)
memcpy(oldstat, newstat, sizeof(oldstat));
}
void
icmp_boot(char *args)
{
memset(oldstat, 0, sizeof(oldstat));
update = UPDATE_BOOT;
}
void
icmp_run(char *args)
{
if (update != UPDATE_RUN) {
memcpy(oldstat, newstat, sizeof(oldstat));
update = UPDATE_RUN;
}
}
void
icmp_time(char *args)
{
if (update != UPDATE_TIME) {
memcpy(oldstat, newstat, sizeof(oldstat));
update = UPDATE_TIME;
}
}
void
icmp_zero(char *args)
{
if (update == UPDATE_RUN)
memcpy(oldstat, newstat, sizeof(oldstat));
}
