1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1980, 1992, 1993
5 *	The Regents of the University of California.  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 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33
34__FBSDID("$FreeBSD$");
35
36#ifdef lint
37static char sccsid[] = "@(#)mbufs.c	8.1 (Berkeley) 6/6/93";
38#endif
39
40/* From:
41	"Id: mbufs.c,v 1.5 1997/02/24 20:59:03 wollman Exp"
42*/
43
44#include <sys/param.h>
45#include <sys/types.h>
46#include <sys/socket.h>
47#include <sys/sysctl.h>
48
49#include <netinet/in.h>
50#include <netinet/in_systm.h>
51#include <netinet/ip.h>
52#include <netinet/ip_icmp.h>
53#include <netinet/icmp_var.h>
54
55#include <stdlib.h>
56#include <string.h>
57#include <paths.h>
58#include "systat.h"
59#include "extern.h"
60#include "mode.h"
61
62static struct icmpstat icmpstat, initstat, oldstat;
63
64/*-
65--0         1         2         3         4         5         6         7
66--0123456789012345678901234567890123456789012345678901234567890123456789012345
6700          ICMP Input                         ICMP Output
6801999999999 total messages           999999999 total messages
6902999999999 with bad code            999999999 errors generated
7003999999999 with bad length          999999999 suppressed - original too short
7104999999999 with bad checksum        999999999 suppressed - original was ICMP
7205999999999 with insufficient data   999999999 responses sent
7306                                   999999999 suppressed - multicast echo
7407                                   999999999 suppressed - multicast tstamp
7508
7609          Input Histogram                    Output Histogram
7710999999999 echo response            999999999 echo response
7811999999999 echo request             999999999 echo request
7912999999999 destination unreachable  999999999 destination unreachable
8013999999999 redirect                 999999999 redirect
8114999999999 time-to-live exceeded    999999999 time-to-line exceeded
8215999999999 parameter problem        999999999 parameter problem
8316999999999 router advertisement     999999999 router solicitation
8417
8518
86--0123456789012345678901234567890123456789012345678901234567890123456789012345
87--0         1         2         3         4         5         6         7
88*/
89
90WINDOW *
91openicmp(void)
92{
93	return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
94}
95
96void
97closeicmp(WINDOW *w)
98{
99	if (w == NULL)
100		return;
101	wclear(w);
102	wrefresh(w);
103	delwin(w);
104}
105
106void
107labelicmp(void)
108{
109	wmove(wnd, 0, 0); wclrtoeol(wnd);
110#define L(row, str) mvwprintw(wnd, row, 10, str)
111#define R(row, str) mvwprintw(wnd, row, 45, str);
112	L(0, "ICMP Input");		R(0, "ICMP Output");
113	L(1, "total messages");		R(1, "total messages");
114	L(2, "with bad code");		R(2, "errors generated");
115	L(3, "with bad length");	R(3, "suppressed - original too short");
116	L(4, "with bad checksum");	R(4, "suppressed - original was ICMP");
117	L(5, "with insufficient data");	R(5, "responses sent");
118					R(6, "suppressed - multicast echo");
119					R(7, "suppressed - multicast tstamp");
120	L(9, "Input Histogram");	R(9, "Output Histogram");
121#define B(row, str) L(row, str); R(row, str)
122	B(10, "echo response");
123	B(11, "echo request");
124	B(12, "destination unreachable");
125	B(13, "redirect");
126	B(14, "time-to-live exceeded");
127	B(15, "parameter problem");
128	L(16, "router advertisement");	R(16, "router solicitation");
129#undef L
130#undef R
131#undef B
132}
133
134static void
135domode(struct icmpstat *ret)
136{
137	const struct icmpstat *sub;
138	int i, divisor = 1;
139
140	switch(currentmode) {
141	case display_RATE:
142		sub = &oldstat;
143		divisor = (delay > 1000000) ? delay / 1000000 : 1;
144		break;
145	case display_DELTA:
146		sub = &oldstat;
147		break;
148	case display_SINCE:
149		sub = &initstat;
150		break;
151	default:
152		*ret = icmpstat;
153		return;
154	}
155#define DO(stat) ret->stat = (icmpstat.stat - sub->stat) / divisor
156	DO(icps_error);
157	DO(icps_oldshort);
158	DO(icps_oldicmp);
159	for (i = 0; i <= ICMP_MAXTYPE; i++) {
160		DO(icps_outhist[i]);
161	}
162	DO(icps_badcode);
163	DO(icps_tooshort);
164	DO(icps_checksum);
165	DO(icps_badlen);
166	DO(icps_reflect);
167	for (i = 0; i <= ICMP_MAXTYPE; i++) {
168		DO(icps_inhist[i]);
169	}
170	DO(icps_bmcastecho);
171	DO(icps_bmcasttstamp);
172#undef DO
173}
174
175void
176showicmp(void)
177{
178	struct icmpstat stats;
179	u_long totalin, totalout;
180	int i;
181
182	memset(&stats, 0, sizeof stats);
183	domode(&stats);
184	for (i = totalin = totalout = 0; i <= ICMP_MAXTYPE; i++) {
185		totalin += stats.icps_inhist[i];
186		totalout += stats.icps_outhist[i];
187	}
188	totalin += stats.icps_badcode + stats.icps_badlen +
189		stats.icps_checksum + stats.icps_tooshort;
190	mvwprintw(wnd, 1, 0, "%9lu", totalin);
191	mvwprintw(wnd, 1, 35, "%9lu", totalout);
192
193#define DO(stat, row, col) \
194	mvwprintw(wnd, row, col, "%9lu", stats.stat)
195
196	DO(icps_badcode, 2, 0);
197	DO(icps_badlen, 3, 0);
198	DO(icps_checksum, 4, 0);
199	DO(icps_tooshort, 5, 0);
200	DO(icps_error, 2, 35);
201	DO(icps_oldshort, 3, 35);
202	DO(icps_oldicmp, 4, 35);
203	DO(icps_reflect, 5, 35);
204	DO(icps_bmcastecho, 6, 35);
205	DO(icps_bmcasttstamp, 7, 35);
206#define DO2(type, row) DO(icps_inhist[type], row, 0); DO(icps_outhist[type], \
207							 row, 35)
208	DO2(ICMP_ECHOREPLY, 10);
209	DO2(ICMP_ECHO, 11);
210	DO2(ICMP_UNREACH, 12);
211	DO2(ICMP_REDIRECT, 13);
212	DO2(ICMP_TIMXCEED, 14);
213	DO2(ICMP_PARAMPROB, 15);
214	DO(icps_inhist[ICMP_ROUTERADVERT], 16, 0);
215	DO(icps_outhist[ICMP_ROUTERSOLICIT], 16, 35);
216#undef DO
217#undef DO2
218}
219
220int
221initicmp(void)
222{
223	size_t len;
224	int name[4];
225
226	name[0] = CTL_NET;
227	name[1] = PF_INET;
228	name[2] = IPPROTO_ICMP;
229	name[3] = ICMPCTL_STATS;
230
231	len = 0;
232	if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
233		error("sysctl getting icmpstat size failed");
234		return 0;
235	}
236	if (len > sizeof icmpstat) {
237		error("icmpstat structure has grown--recompile systat!");
238		return 0;
239	}
240	if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
241		error("sysctl getting icmpstat size failed");
242		return 0;
243	}
244	oldstat = initstat;
245	return 1;
246}
247
248void
249reseticmp(void)
250{
251	size_t len;
252	int name[4];
253
254	name[0] = CTL_NET;
255	name[1] = PF_INET;
256	name[2] = IPPROTO_ICMP;
257	name[3] = ICMPCTL_STATS;
258
259	len = sizeof initstat;
260	if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
261		error("sysctl getting icmpstat size failed");
262	}
263	oldstat = initstat;
264}
265
266void
267fetchicmp(void)
268{
269	int name[4];
270	size_t len;
271
272	oldstat = icmpstat;
273	name[0] = CTL_NET;
274	name[1] = PF_INET;
275	name[2] = IPPROTO_ICMP;
276	name[3] = ICMPCTL_STATS;
277	len = sizeof icmpstat;
278
279	if (sysctl(name, 4, &icmpstat, &len, 0, 0) < 0)
280		return;
281}
282