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: stable/12/usr.bin/systat/ip6.c 356625 2020-01-11 01:56:57Z bz $");
35
36 #ifdef lint
37 static const 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/in_systm.h>
52 #include <netinet/ip.h>
53 #include <netinet6/ip6_var.h>
54
55 #include <inttypes.h>
56 #include <stdlib.h>
57 #include <string.h>
58 #include <paths.h>
59
60 #include "systat.h"
61 #include "extern.h"
62 #include "mode.h"
63
64 static struct ip6stat curstat, initstat, oldstat;
65
66 /*-
67 --0 1 2 3 4 5 6 7
68 --0123456789012345678901234567890123456789012345678901234567890123456789012345
69 00 IPv6 Input IPv6 Output
70 019999999 total packets received 999999999 total packets sent
71 029999999 - too short for header 999999999 - generated locally
72 039999999 - too short for data 999999999 - output drops
73 049999999 - with invalid version 999999999 output fragments generated
74 059999999 total fragments received 999999999 - fragmentation failed
75 069999999 - fragments dropped 999999999 destinations unreachable
76 079999999 - fragments timed out 999999999 packets output via raw IP
77 089999999 - fragments overflown
78 099999999 - packets reassembled ok Input next-header histogram
79 109999999 packets forwarded 999999999 - destination options
80 119999999 - unreachable dests 999999999 - hop-by-hop options
81 129999999 - redirects generated 999999999 - IPv4
82 139999999 option errors 999999999 - TCP
83 149999999 unwanted multicasts 999999999 - UDP
84 159999999 delivered to upper layer 999999999 - IPv6
85 169999999 bad scope packets 999999999 - routing header
86 179999999 address selection failed 999999999 - fragmentation header
87 18 999999999 - ICMP6
88 19 999999999 - none
89 --0123456789012345678901234567890123456789012345678901234567890123456789012345
90 --0 1 2 3 4 5 6 7
91 */
92
93 WINDOW *
openip6(void)94 openip6(void)
95 {
96 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
97 }
98
99 void
closeip6(WINDOW * w)100 closeip6(WINDOW *w)
101 {
102 if (w == NULL)
103 return;
104 wclear(w);
105 wrefresh(w);
106 delwin(w);
107 }
108
109 void
labelip6(void)110 labelip6(void)
111 {
112 wmove(wnd, 0, 0); wclrtoeol(wnd);
113 #define L(row, str) mvwprintw(wnd, row, 10, str)
114 #define R(row, str) mvwprintw(wnd, row, 45, str);
115 L(0, "IPv6 Input"); R(0, "IPv6 Output");
116 L(1, "total packets received"); R(1, "total packets sent");
117 L(2, "- too short for header"); R(2, "- generated locally");
118 L(3, "- too short for data"); R(3, "- output drops");
119 L(4, "- with invalid version"); R(4, "output fragments generated");
120 L(5, "total fragments received"); R(5, "- fragmentation failed");
121 L(6, "- fragments dropped"); R(6, "destinations unreachable");
122 L(7, "- fragments timed out"); R(7, "packets output via raw IP");
123 L(8, "- fragments overflown");
124 L(9, "- atomic fragments"); R(9, "Input next-header histogram");
125 L(10, "- packets reassembled ok"); R(10, " - destination options");
126 L(11, "packets forwarded"); R(11, " - hop-by-hop options");
127 L(12, "- unreachable dests"); R(12, " - IPv4");
128 L(13, "- redirects generated"); R(13, " - TCP");
129 L(14, "option errors"); R(14, " - UDP");
130 L(15, "unwanted multicasts"); R(15, " - IPv6");
131 L(16, "delivered to upper layer"); R(16, " - routing header");
132 L(17, "bad scope packets"); R(17, " - fragmentation header");
133 L(18, "address selection failed");R(18, " - ICMP6");
134 R(19, " - none");
135 #undef L
136 #undef R
137 }
138
139 static void
domode(struct ip6stat * ret)140 domode(struct ip6stat *ret)
141 {
142 const struct ip6stat *sub;
143 int divisor = 1, i;
144
145 switch(currentmode) {
146 case display_RATE:
147 sub = &oldstat;
148 divisor = (delay > 1000000) ? delay / 1000000 : 1;
149 break;
150 case display_DELTA:
151 sub = &oldstat;
152 break;
153 case display_SINCE:
154 sub = &initstat;
155 break;
156 default:
157 *ret = curstat;
158 return;
159 }
160 #define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
161 DO(ip6s_total);
162 DO(ip6s_tooshort);
163 DO(ip6s_toosmall);
164 DO(ip6s_fragments);
165 DO(ip6s_fragdropped);
166 DO(ip6s_fragtimeout);
167 DO(ip6s_fragoverflow);
168 DO(ip6s_atomicfrags);
169 DO(ip6s_forward);
170 DO(ip6s_cantforward);
171 DO(ip6s_redirectsent);
172 DO(ip6s_delivered);
173 DO(ip6s_localout);
174 DO(ip6s_odropped);
175 DO(ip6s_reassembled);
176 DO(ip6s_fragmented);
177 DO(ip6s_ofragments);
178 DO(ip6s_cantfrag);
179 DO(ip6s_badoptions);
180 DO(ip6s_noroute);
181 DO(ip6s_badvers);
182 DO(ip6s_rawout);
183 DO(ip6s_notmember);
184 for (i = 0; i < 256; i++)
185 DO(ip6s_nxthist[i]);
186 DO(ip6s_badscope);
187 DO(ip6s_sources_none);
188 #undef DO
189 }
190
191 void
showip6(void)192 showip6(void)
193 {
194 struct ip6stat stats;
195 uint64_t totalout;
196
197 domode(&stats);
198 totalout = stats.ip6s_forward + stats.ip6s_localout;
199
200 #define DO(stat, row, col) \
201 mvwprintw(wnd, row, col, "%9"PRIu64, stats.stat)
202
203 DO(ip6s_total, 1, 0);
204 mvwprintw(wnd, 1, 35, "%9"PRIu64, totalout);
205 DO(ip6s_tooshort, 2, 0);
206 DO(ip6s_localout, 2, 35);
207 DO(ip6s_toosmall, 3, 0);
208 DO(ip6s_odropped, 3, 35);
209 DO(ip6s_badvers, 4, 0);
210 DO(ip6s_ofragments, 4, 35);
211 DO(ip6s_fragments, 5, 0);
212 DO(ip6s_cantfrag, 5, 35);
213 DO(ip6s_fragdropped, 6, 0);
214 DO(ip6s_noroute, 6, 35);
215 DO(ip6s_fragtimeout, 7, 0);
216 DO(ip6s_rawout, 7, 35);
217 DO(ip6s_fragoverflow, 8, 0);
218 DO(ip6s_atomicfrags, 9, 0);
219 DO(ip6s_reassembled, 10, 0);
220 DO(ip6s_forward, 11, 0);
221 DO(ip6s_nxthist[IPPROTO_DSTOPTS], 10, 35);
222 DO(ip6s_cantforward, 12, 0);
223 DO(ip6s_nxthist[IPPROTO_HOPOPTS], 11, 35);
224 DO(ip6s_redirectsent, 13, 0);
225 DO(ip6s_nxthist[IPPROTO_IPV4], 12, 35);
226 DO(ip6s_badoptions, 14, 0);
227 DO(ip6s_nxthist[IPPROTO_TCP], 13, 35);
228 DO(ip6s_notmember, 15, 0);
229 DO(ip6s_nxthist[IPPROTO_UDP], 14, 35);
230 DO(ip6s_delivered, 16, 0);
231 DO(ip6s_nxthist[IPPROTO_IPV6], 15, 35);
232 DO(ip6s_badscope, 17, 0);
233 DO(ip6s_nxthist[IPPROTO_ROUTING], 16, 35);
234 DO(ip6s_sources_none, 18, 0);
235 DO(ip6s_nxthist[IPPROTO_FRAGMENT], 17, 35);
236 DO(ip6s_nxthist[IPPROTO_ICMPV6], 18, 35);
237 DO(ip6s_nxthist[IPPROTO_NONE], 19, 35);
238 #undef DO
239 }
240
241 int
initip6(void)242 initip6(void)
243 {
244 size_t len;
245 int name[4];
246
247 name[0] = CTL_NET;
248 name[1] = PF_INET6;
249 name[2] = IPPROTO_IPV6;
250 name[3] = IPV6CTL_STATS;
251
252 len = 0;
253 if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
254 error("sysctl getting ip6stat size failed");
255 return 0;
256 }
257 if (len > sizeof curstat) {
258 error("ip6stat structure has grown--recompile systat!");
259 return 0;
260 }
261 if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
262 error("sysctl getting ip6stat failed");
263 return 0;
264 }
265 oldstat = initstat;
266 return 1;
267 }
268
269 void
resetip6(void)270 resetip6(void)
271 {
272 size_t len;
273 int name[4];
274
275 name[0] = CTL_NET;
276 name[1] = PF_INET6;
277 name[2] = IPPROTO_IPV6;
278 name[3] = IPV6CTL_STATS;
279
280 len = sizeof initstat;
281 if (sysctl(name, 4, &initstat, &len, 0, 0) < 0) {
282 error("sysctl getting ipstat failed");
283 }
284
285 oldstat = initstat;
286 }
287
288 void
fetchip6(void)289 fetchip6(void)
290 {
291 int name[4];
292 size_t len;
293
294 oldstat = curstat;
295 name[0] = CTL_NET;
296 name[1] = PF_INET6;
297 name[2] = IPPROTO_IPV6;
298 name[3] = IPV6CTL_STATS;
299 len = sizeof curstat;
300
301 if (sysctl(name, 4, &curstat, &len, 0, 0) < 0)
302 return;
303 }
304
305 #endif
306