xref: /freebsd/usr.bin/systat/ip6.c (revision ef36b3f75658d201edb495068db5e1be49593de5)
1 /*-
2  * Copyright (c) 1980, 1992, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #include <sys/cdefs.h>
31 
32 __FBSDID("$FreeBSD$");
33 
34 #ifdef lint
35 static const char sccsid[] = "@(#)mbufs.c	8.1 (Berkeley) 6/6/93";
36 #endif
37 
38 /* From:
39 	"Id: mbufs.c,v 1.5 1997/02/24 20:59:03 wollman Exp"
40 */
41 
42 #ifdef INET6
43 #include <sys/param.h>
44 #include <sys/types.h>
45 #include <sys/socket.h>
46 #include <sys/sysctl.h>
47 
48 #include <netinet/in.h>
49 #include <netinet/in_systm.h>
50 #include <netinet/ip.h>
51 #include <netinet6/ip6_var.h>
52 
53 #include <stdlib.h>
54 #include <string.h>
55 #include <paths.h>
56 
57 #include "systat.h"
58 #include "extern.h"
59 #include "mode.h"
60 
61 static struct ip6stat curstat, initstat, oldstat;
62 
63 /*-
64 --0         1         2         3         4         5         6         7
65 --0123456789012345678901234567890123456789012345678901234567890123456789012345
66 00        IPv6 Input                         IPv6 Output
67 019999999 total packets received   999999999 total packets sent
68 029999999 - too short for header   999999999 - generated locally
69 039999999 - too short for data     999999999 - output drops
70 049999999 - with invalid version   999999999 output fragments generated
71 059999999 total fragments received 999999999 - fragmentation failed
72 069999999 - fragments dropped      999999999 destinations unreachable
73 079999999 - fragments timed out    999999999 packets output via raw IP
74 089999999 - fragments overflown
75 099999999 - packets reassembled ok           Input next-header histogram
76 109999999 packets forwarded        999999999  - destination options
77 119999999 - unreachable dests      999999999  - hop-by-hop options
78 129999999 - redirects generated    999999999  - IPv4
79 139999999 option errors            999999999  - TCP
80 149999999 unwanted multicasts      999999999  - UDP
81 159999999 delivered to upper layer 999999999  - IPv6
82 169999999 bad scope packets        999999999  - routing header
83 179999999 address selection failed 999999999  - fragmentation header
84 18                                 999999999  - ICMP6
85 19                                 999999999  - none
86 --0123456789012345678901234567890123456789012345678901234567890123456789012345
87 --0         1         2         3         4         5         6         7
88 */
89 
90 WINDOW *
91 openip6(void)
92 {
93 	return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
94 }
95 
96 void
97 closeip6(WINDOW *w)
98 {
99 	if (w == NULL)
100 		return;
101 	wclear(w);
102 	wrefresh(w);
103 	delwin(w);
104 }
105 
106 void
107 labelip6(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, "IPv6 Input");		R(0, "IPv6 Output");
113 	L(1, "total packets received");	R(1, "total packets sent");
114 	L(2, "- too short for header");	R(2, "- generated locally");
115 	L(3, "- too short for data");	R(3, "- output drops");
116 	L(4, "- with invalid version");	R(4, "output fragments generated");
117 	L(5, "total fragments received"); R(5, "- fragmentation failed");
118 	L(6, "- fragments dropped");	R(6, "destinations unreachable");
119 	L(7, "- fragments timed out");	R(7, "packets output via raw IP");
120 	L(8, "- fragments overflown");
121 	L(9, "- packets reassembled ok"); R(9, "Input next-header histogram");
122 	L(10, "packets forwarded");	R(10, " - destination options");
123 	L(11, "- unreachable dests");	R(11, " - hop-by-hop options");
124 	L(12, "- redirects generated");	R(12, " - IPv4");
125 	L(13, "option errors");		R(13, " - TCP");
126 	L(14, "unwanted multicasts");	R(14, " - UDP");
127 	L(15, "delivered to upper layer"); R(15, " - IPv6");
128 	L(16, "bad scope packets");	R(16, " - routing header");
129 	L(17, "address selection failed"); R(17, " - fragmentation header");
130 					R(18, " - ICMP6");
131 					R(19, " - none");
132 #undef L
133 #undef R
134 }
135 
136 static void
137 domode(struct ip6stat *ret)
138 {
139 	const struct ip6stat *sub;
140 	int divisor = 1, i;
141 
142 	switch(currentmode) {
143 	case display_RATE:
144 		sub = &oldstat;
145 		divisor = (delay > 1000000) ? delay / 1000000 : 1;
146 		break;
147 	case display_DELTA:
148 		sub = &oldstat;
149 		break;
150 	case display_SINCE:
151 		sub = &initstat;
152 		break;
153 	default:
154 		*ret = curstat;
155 		return;
156 	}
157 #define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
158 	DO(ip6s_total);
159 	DO(ip6s_tooshort);
160 	DO(ip6s_toosmall);
161 	DO(ip6s_fragments);
162 	DO(ip6s_fragdropped);
163 	DO(ip6s_fragtimeout);
164 	DO(ip6s_fragoverflow);
165 	DO(ip6s_forward);
166 	DO(ip6s_cantforward);
167 	DO(ip6s_redirectsent);
168 	DO(ip6s_delivered);
169 	DO(ip6s_localout);
170 	DO(ip6s_odropped);
171 	DO(ip6s_reassembled);
172 	DO(ip6s_fragmented);
173 	DO(ip6s_ofragments);
174 	DO(ip6s_cantfrag);
175 	DO(ip6s_badoptions);
176 	DO(ip6s_noroute);
177 	DO(ip6s_badvers);
178 	DO(ip6s_rawout);
179 	DO(ip6s_notmember);
180 	for (i = 0; i < 256; i++)
181 		DO(ip6s_nxthist[i]);
182 	DO(ip6s_badscope);
183 	DO(ip6s_sources_none);
184 #undef DO
185 }
186 
187 void
188 showip6(void)
189 {
190 	struct ip6stat stats;
191 	u_long totalout;
192 
193 	domode(&stats);
194 	totalout = stats.ip6s_forward + stats.ip6s_localout;
195 
196 #define DO(stat, row, col) \
197 	mvwprintw(wnd, row, col, "%9lu", stats.stat)
198 
199 	DO(ip6s_total, 1, 0);
200 	mvwprintw(wnd, 1, 35, "%9lu", totalout);
201 	DO(ip6s_tooshort, 2, 0);
202 	DO(ip6s_localout, 2, 35);
203 	DO(ip6s_toosmall, 3, 0);
204 	DO(ip6s_odropped, 3, 35);
205 	DO(ip6s_badvers, 4, 0);
206 	DO(ip6s_ofragments, 4, 35);
207 	DO(ip6s_fragments, 5, 0);
208 	DO(ip6s_cantfrag, 5, 35);
209 	DO(ip6s_fragdropped, 6, 0);
210 	DO(ip6s_noroute, 6, 35);
211 	DO(ip6s_fragtimeout, 7, 0);
212 	DO(ip6s_rawout, 7, 35);
213 	DO(ip6s_fragoverflow, 8, 0);
214 	DO(ip6s_reassembled, 9, 0);
215 	DO(ip6s_forward, 10, 0);
216 	DO(ip6s_nxthist[IPPROTO_DSTOPTS], 10, 35);
217 	DO(ip6s_cantforward, 11, 0);
218 	DO(ip6s_nxthist[IPPROTO_HOPOPTS], 11, 35);
219 	DO(ip6s_redirectsent, 12, 0);
220 	DO(ip6s_nxthist[IPPROTO_IPV4], 12, 35);
221 	DO(ip6s_badoptions, 13, 0);
222 	DO(ip6s_nxthist[IPPROTO_TCP], 13, 35);
223 	DO(ip6s_notmember, 14, 0);
224 	DO(ip6s_nxthist[IPPROTO_UDP], 14, 35);
225 	DO(ip6s_delivered, 15, 0);
226 	DO(ip6s_nxthist[IPPROTO_IPV6], 15, 35);
227 	DO(ip6s_badscope, 16, 0);
228 	DO(ip6s_nxthist[IPPROTO_ROUTING], 16, 35);
229 	DO(ip6s_sources_none, 17, 0);
230 	DO(ip6s_nxthist[IPPROTO_FRAGMENT], 17, 35);
231 	DO(ip6s_nxthist[IPPROTO_ICMPV6], 18, 35);
232 	DO(ip6s_nxthist[IPPROTO_NONE], 19, 35);
233 #undef DO
234 }
235 
236 int
237 initip6(void)
238 {
239 	size_t len;
240 	int name[4];
241 
242 	name[0] = CTL_NET;
243 	name[1] = PF_INET6;
244 	name[2] = IPPROTO_IPV6;
245 	name[3] = IPV6CTL_STATS;
246 
247 	len = 0;
248 	if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
249 		error("sysctl getting ip6stat size failed");
250 		return 0;
251 	}
252 	if (len > sizeof curstat) {
253 		error("ip6stat structure has grown--recompile systat!");
254 		return 0;
255 	}
256 	if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
257 		error("sysctl getting ip6stat failed");
258 		return 0;
259 	}
260 	oldstat = initstat;
261 	return 1;
262 }
263 
264 void
265 resetip6(void)
266 {
267 	size_t len;
268 	int name[4];
269 
270 	name[0] = CTL_NET;
271 	name[1] = PF_INET6;
272 	name[2] = IPPROTO_IPV6;
273 	name[3] = IPV6CTL_STATS;
274 
275 	len = sizeof initstat;
276 	if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
277 		error("sysctl getting ipstat failed");
278 	}
279 
280 	oldstat = initstat;
281 }
282 
283 void
284 fetchip6(void)
285 {
286 	int name[4];
287 	size_t len;
288 
289 	oldstat = curstat;
290 	name[0] = CTL_NET;
291 	name[1] = PF_INET6;
292 	name[2] = IPPROTO_IPV6;
293 	name[3] = IPV6CTL_STATS;
294 	len = sizeof curstat;
295 
296 	if (sysctl(name, 4, &curstat, &len, 0, 0) < 0)
297 		return;
298 }
299 
300 #endif
301