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icmp.c revision 1.3 
      1 /*	$NetBSD: icmp.c,v 1.3 2000/01/13 12:39:04 ad Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1999 Andy Doran <ad (at) NetBSD.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 #ifndef lint
     32 __RCSID("$NetBSD: icmp.c,v 1.3 2000/01/13 12:39:04 ad Exp $");
     33 #endif /* not lint */
     34 
     35 #include <sys/param.h>
     36 #include <sys/types.h>
     37 #include <sys/socket.h>
     38 #include <sys/sysctl.h>
     39 
     40 #include <netinet/in.h>
     41 #include <netinet/in_systm.h>
     42 #include <netinet/ip.h>
     43 #include <netinet/ip_icmp.h>
     44 #include <netinet/icmp_var.h>
     45 
     46 #include <stdlib.h>
     47 #include <string.h>
     48 #include <paths.h>
     49 #include <nlist.h>
     50 #include <kvm.h>
     51 
     52 #include "systat.h"
     53 #include "extern.h"
     54 
     55 #define LHD(row, str) mvwprintw(wnd, row, 10, str)
     56 #define RHD(row, str) mvwprintw(wnd, row, 45, str);
     57 #define BD(row, str) LHD(row, str); RHD(row, str)
     58 #define SHOW(stat, row, col) \
     59     mvwprintw(wnd, row, col, "%9llu", (unsigned long long)stats.stat)
     60 #define SHOW2(type, row) SHOW(icps_inhist[type], row, 0); \
     61     SHOW(icps_outhist[type], row, 35)
     62 
     63 static struct icmpstat stats;
     64 
     65 static struct nlist namelist[] = {
     66 	{ "_icmpstat" },
     67 	{ "" }
     68 };
     69 
     70 WINDOW *
     71 openicmp(void)
     72 {
     73 
     74 	return (subwin(stdscr, LINES-5-1, 0, 5, 0));
     75 }
     76 
     77 void
     78 closeicmp(w)
     79 	WINDOW *w;
     80 {
     81 
     82 	if (w != NULL) {
     83 		wclear(w);
     84 		wrefresh(w);
     85 		delwin(w);
     86 	}
     87 }
     88 
     89 void
     90 labelicmp(void)
     91 {
     92 
     93 	wmove(wnd, 0, 0); wclrtoeol(wnd);
     94 
     95 	mvwprintw(wnd, 1, 0,  "------------ ICMP input -------------");
     96 	mvwprintw(wnd, 1, 38, "------------- ICMP output -------------");
     97 
     98 	mvwprintw(wnd, 8, 0,  "---------- Input histogram ----------");
     99 	mvwprintw(wnd, 8, 38, "---------- Output histogram -----------");
    100 
    101 	LHD(3, "with bad code");
    102 	LHD(4, "with bad length");
    103 	LHD(5, "with bad checksum");
    104 	LHD(6, "with insufficient data");
    105 
    106 	RHD(3, "errors generated");
    107 	RHD(4, "suppressed - original too short");
    108 	RHD(5, "suppressed - original was ICMP");
    109 	RHD(6, "responses sent");
    110 
    111 	BD(2, "total messages");
    112 	BD(9, "echo response");
    113 	BD(10, "echo request");
    114 	BD(11, "destination unreachable");
    115 	BD(12, "redirect");
    116 	BD(13, "time-to-live exceeded");
    117 	BD(14, "parameter problem");
    118 	LHD(15, "router advertisement");
    119 	RHD(15, "router solicitation");
    120 }
    121 
    122 void
    123 showicmp(void)
    124 {
    125 	u_long tin, tout;
    126 	int i;
    127 
    128 	for (i = tin = tout = 0; i <= ICMP_MAXTYPE; i++) {
    129 		tin += stats.icps_inhist[i];
    130 		tout += stats.icps_outhist[i];
    131 	}
    132 
    133 	tin += stats.icps_badcode + stats.icps_badlen + stats.icps_checksum +
    134 	    stats.icps_tooshort;
    135 	mvwprintw(wnd, 2, 0, "%9lu", tin);
    136 	mvwprintw(wnd, 2, 35, "%9lu", tout);
    137 
    138 	SHOW(icps_badcode, 3, 0);
    139 	SHOW(icps_badlen, 4, 0);
    140 	SHOW(icps_checksum, 5, 0);
    141 	SHOW(icps_tooshort, 6, 0);
    142 	SHOW(icps_error, 3, 35);
    143 	SHOW(icps_oldshort, 4, 35);
    144 	SHOW(icps_oldicmp, 5, 35);
    145 	SHOW(icps_reflect, 6, 35);
    146 
    147 	SHOW2(ICMP_ECHOREPLY, 9);
    148 	SHOW2(ICMP_ECHO, 10);
    149 	SHOW2(ICMP_UNREACH, 11);
    150 	SHOW2(ICMP_REDIRECT, 12);
    151 	SHOW2(ICMP_TIMXCEED, 13);
    152 	SHOW2(ICMP_PARAMPROB, 14);
    153 	SHOW(icps_inhist[ICMP_ROUTERADVERT], 15, 0);
    154 	SHOW(icps_outhist[ICMP_ROUTERSOLICIT], 15, 35);
    155 }
    156 
    157 int
    158 initicmp(void)
    159 {
    160 
    161 	if (namelist[0].n_type == 0) {
    162 		if (kvm_nlist(kd, namelist)) {
    163 			nlisterr(namelist);
    164 			return(0);
    165 		}
    166 		if (namelist[0].n_type == 0) {
    167 			error("No namelist");
    168 			return(0);
    169 		}
    170 	}
    171 
    172 	return (1);
    173 }
    174 
    175 void
    176 fetchicmp(void)
    177 {
    178 
    179 	KREAD((void *)namelist[0].n_value, &stats, sizeof(stats));
    180 }
    181