xref: /freebsd/usr.bin/systat/icmp6.c (revision f6a3b357e9be4c6423c85eff9a847163a0d307c8)
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
37 static 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 #ifdef INET6
45 #include <sys/param.h>
46 #include <sys/types.h>
47 #include <sys/socket.h>
48 #include <sys/sysctl.h>
49 
50 #include <netinet/in.h>
51 #include <netinet/icmp6.h>
52 
53 #include <inttypes.h>
54 #include <stdlib.h>
55 #include <string.h>
56 #include <paths.h>
57 #include "systat.h"
58 #include "extern.h"
59 #include "mode.h"
60 
61 static struct icmp6stat icmp6stat, initstat, oldstat;
62 
63 /*-
64 --0         1         2         3         4         5         6         7
65 --0123456789012345678901234567890123456789012345678901234567890123456789012345
66 00          ICMPv6 Input                       ICMPv6 Output
67 01999999999 total messages           999999999 total messages
68 02999999999 with bad code            999999999 errors generated
69 03999999999 with bad length          999999999 suppressed - original too short
70 04999999999 with bad checksum        999999999 suppressed - original was ICMP
71 05999999999 with insufficient data   999999999 responses sent
72 06
73 07          Input Histogram                    Output Histogram
74 08999999999 echo response            999999999 echo response
75 09999999999 echo request             999999999 echo request
76 10999999999 destination unreachable  999999999 destination unreachable
77 11999999999 redirect                 999999999 redirect
78 12999999999 time-to-live exceeded    999999999 time-to-line exceeded
79 13999999999 parameter problem        999999999 parameter problem
80 14999999999 neighbor solicitation    999999999 neighbor solicitation
81 15999999999 neighbor advertisement   999999999 neighbor advertisement
82 16999999999 router advertisement     999999999 router solicitation
83 17
84 18
85 --0123456789012345678901234567890123456789012345678901234567890123456789012345
86 --0         1         2         3         4         5         6         7
87 */
88 
89 WINDOW *
90 openicmp6(void)
91 {
92 	return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
93 }
94 
95 void
96 closeicmp6(WINDOW *w)
97 {
98 	if (w == NULL)
99 		return;
100 	wclear(w);
101 	wrefresh(w);
102 	delwin(w);
103 }
104 
105 void
106 labelicmp6(void)
107 {
108 	wmove(wnd, 0, 0); wclrtoeol(wnd);
109 #define L(row, str) mvwprintw(wnd, row, 10, str)
110 #define R(row, str) mvwprintw(wnd, row, 45, str);
111 	L(0, "ICMPv6 Input");		R(0, "ICMPv6 Output");
112 	L(1, "total messages");		R(1, "total messages");
113 	L(2, "with bad code");		R(2, "errors generated");
114 	L(3, "with bad length");	R(3, "suppressed - original too short");
115 	L(4, "with bad checksum");	R(4, "suppressed - original was ICMP");
116 	L(5, "with insufficient data");	R(5, "responses sent");
117 
118 	L(7, "Input Histogram");	R(7, "Output Histogram");
119 #define B(row, str) L(row, str); R(row, str)
120 	B(8, "echo response");
121 	B(9, "echo request");
122 	B(10, "destination unreachable");
123 	B(11, "redirect");
124 	B(12, "time-to-live exceeded");
125 	B(13, "parameter problem");
126 	B(14, "neighbor solicitation");
127 	B(15, "neighbor advertisement");
128 	L(16, "router advertisement");	R(16, "router solicitation");
129 #undef L
130 #undef R
131 #undef B
132 }
133 
134 static void
135 domode(struct icmp6stat *ret)
136 {
137 	const struct icmp6stat *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 = icmp6stat;
153 		return;
154 	}
155 #define DO(stat) ret->stat = (icmp6stat.stat - sub->stat) / divisor
156 	DO(icp6s_error);
157 	DO(icp6s_tooshort);
158 	DO(icp6s_canterror);
159 	for (i = 0; i <= ICMP6_MAXTYPE; i++) {
160 		DO(icp6s_outhist[i]);
161 	}
162 	DO(icp6s_badcode);
163 	DO(icp6s_tooshort);
164 	DO(icp6s_checksum);
165 	DO(icp6s_badlen);
166 	DO(icp6s_reflect);
167 	for (i = 0; i <= ICMP6_MAXTYPE; i++) {
168 		DO(icp6s_inhist[i]);
169 	}
170 #undef DO
171 }
172 
173 void
174 showicmp6(void)
175 {
176 	struct icmp6stat stats;
177 	uint64_t totalin, totalout;
178 	int i;
179 
180 	memset(&stats, 0, sizeof stats);
181 	domode(&stats);
182 	for (i = totalin = totalout = 0; i <= ICMP6_MAXTYPE; i++) {
183 		totalin += stats.icp6s_inhist[i];
184 		totalout += stats.icp6s_outhist[i];
185 	}
186 	totalin += stats.icp6s_badcode + stats.icp6s_badlen +
187 		stats.icp6s_checksum + stats.icp6s_tooshort;
188 	mvwprintw(wnd, 1, 0, "%9"PRIu64, totalin);
189 	mvwprintw(wnd, 1, 35, "%9"PRIu64, totalout);
190 
191 #define DO(stat, row, col) \
192 	mvwprintw(wnd, row, col, "%9"PRIu64, stats.stat)
193 
194 	DO(icp6s_badcode, 2, 0);
195 	DO(icp6s_badlen, 3, 0);
196 	DO(icp6s_checksum, 4, 0);
197 	DO(icp6s_tooshort, 5, 0);
198 	DO(icp6s_error, 2, 35);
199 	DO(icp6s_tooshort, 3, 35);
200 	DO(icp6s_canterror, 4, 35);
201 	DO(icp6s_reflect, 5, 35);
202 #define DO2(type, row) DO(icp6s_inhist[type], row, 0); DO(icp6s_outhist[type], \
203 							 row, 35)
204 	DO2(ICMP6_ECHO_REPLY, 8);
205 	DO2(ICMP6_ECHO_REQUEST, 9);
206 	DO2(ICMP6_DST_UNREACH, 10);
207 	DO2(ND_REDIRECT, 11);
208 	DO2(ICMP6_TIME_EXCEEDED, 12);
209 	DO2(ICMP6_PARAM_PROB, 13);
210 	DO2(ND_NEIGHBOR_SOLICIT, 14);
211 	DO2(ND_NEIGHBOR_ADVERT, 15);
212 	DO(icp6s_inhist[ND_ROUTER_SOLICIT], 16, 0);
213 	DO(icp6s_outhist[ND_ROUTER_ADVERT], 16, 35);
214 #undef DO
215 #undef DO2
216 }
217 
218 int
219 initicmp6(void)
220 {
221 	size_t len;
222 	int name[4];
223 
224 	name[0] = CTL_NET;
225 	name[1] = PF_INET6;
226 	name[2] = IPPROTO_ICMPV6;
227 	name[3] = ICMPV6CTL_STATS;
228 
229 	len = 0;
230 	if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
231 		error("sysctl getting icmp6stat size failed");
232 		return 0;
233 	}
234 	if (len > sizeof icmp6stat) {
235 		error("icmp6stat structure has grown--recompile systat!");
236 		return 0;
237 	}
238 	if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
239 		error("sysctl getting icmp6stat size failed");
240 		return 0;
241 	}
242 	oldstat = initstat;
243 	return 1;
244 }
245 
246 void
247 reseticmp6(void)
248 {
249 	size_t len;
250 	int name[4];
251 
252 	name[0] = CTL_NET;
253 	name[1] = PF_INET6;
254 	name[2] = IPPROTO_ICMPV6;
255 	name[3] = ICMPV6CTL_STATS;
256 
257 	len = sizeof initstat;
258 	if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
259 		error("sysctl getting icmp6stat size failed");
260 	}
261 	oldstat = initstat;
262 }
263 
264 void
265 fetchicmp6(void)
266 {
267 	int name[4];
268 	size_t len;
269 
270 	oldstat = icmp6stat;
271 	name[0] = CTL_NET;
272 	name[1] = PF_INET6;
273 	name[2] = IPPROTO_ICMPV6;
274 	name[3] = ICMPV6CTL_STATS;
275 	len = sizeof icmp6stat;
276 
277 	if (sysctl(name, 4, &icmp6stat, &len, 0, 0) < 0)
278 		return;
279 }
280 
281 #endif
282