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 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 #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_var.h>
53 #include <netinet/udp.h>
54 #include <netinet/udp_var.h>
55
56 #include <inttypes.h>
57 #include <stdlib.h>
58 #include <string.h>
59 #include <paths.h>
60
61 #include "systat.h"
62 #include "extern.h"
63 #include "mode.h"
64
65 struct stat {
66 struct ipstat i;
67 struct udpstat u;
68 };
69
70 static struct stat curstat, initstat, oldstat;
71
72 /*-
73 --0 1 2 3 4 5 6 7
74 --0123456789012345678901234567890123456789012345678901234567890123456789012345
75 00 IP Input IP Output
76 01999999999 total packets received 999999999 total packets sent
77 02999999999 - with bad checksums 999999999 - generated locally
78 03999999999 - too short for header 999999999 - output drops
79 04999999999 - too short for data 999999999 output fragments generated
80 05999999999 - with invalid hlen 999999999 - fragmentation failed
81 06999999999 - with invalid length 999999999 destinations unreachable
82 07999999999 - with invalid version 999999999 packets output via raw IP
83 08999999999 - jumbograms
84 09999999999 total fragments received UDP Statistics
85 10999999999 - fragments dropped 999999999 total input packets
86 11999999999 - fragments timed out 999999999 - too short for header
87 12999999999 - packets reassembled ok 999999999 - invalid checksum
88 13999999999 packets forwarded 999999999 - no checksum
89 14999999999 - unreachable dests 999999999 - invalid length
90 15999999999 - redirects generated 999999999 - no socket for dest port
91 16999999999 option errors 999999999 - no socket for broadcast
92 17999999999 unwanted multicasts 999999999 - socket buffer full
93 18999999999 delivered to upper layer 999999999 total output packets
94 --0123456789012345678901234567890123456789012345678901234567890123456789012345
95 --0 1 2 3 4 5 6 7
96 */
97
98 WINDOW *
openip(void)99 openip(void)
100 {
101 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
102 }
103
104 void
closeip(WINDOW * w)105 closeip(WINDOW *w)
106 {
107 if (w == NULL)
108 return;
109 wclear(w);
110 wrefresh(w);
111 delwin(w);
112 }
113
114 void
labelip(void)115 labelip(void)
116 {
117 wmove(wnd, 0, 0); wclrtoeol(wnd);
118 #define L(row, str) mvwprintw(wnd, row, 10, str)
119 #define R(row, str) mvwprintw(wnd, row, 45, str);
120 L(0, "IP Input"); R(0, "IP Output");
121 L(1, "total packets received"); R(1, "total packets sent");
122 L(2, "- with bad checksums"); R(2, "- generated locally");
123 L(3, "- too short for header"); R(3, "- output drops");
124 L(4, "- too short for data"); R(4, "output fragments generated");
125 L(5, "- with invalid hlen"); R(5, "- fragmentation failed");
126 L(6, "- with invalid length"); R(6, "destinations unreachable");
127 L(7, "- with invalid version"); R(7, "packets output via raw IP");
128 L(8, "- jumbograms");
129 L(9, "total fragments received"); R(9, "UDP Statistics");
130 L(10, "- fragments dropped"); R(10, "total input packets");
131 L(11, "- fragments timed out"); R(11, "- too short for header");
132 L(12, "- packets reassembled ok"); R(12, "- invalid checksum");
133 L(13, "packets forwarded"); R(13, "- no checksum");
134 L(14, "- unreachable dests"); R(14, "- invalid length");
135 L(15, "- redirects generated"); R(15, "- no socket for dest port");
136 L(16, "option errors"); R(16, "- no socket for broadcast");
137 L(17, "unwanted multicasts"); R(17, "- socket buffer full");
138 L(18, "delivered to upper layer"); R(18, "total output packets");
139 #undef L
140 #undef R
141 }
142
143 static void
domode(struct stat * ret)144 domode(struct stat *ret)
145 {
146 const struct stat *sub;
147 int divisor = 1;
148
149 switch(currentmode) {
150 case display_RATE:
151 sub = &oldstat;
152 divisor = (delay > 1000000) ? delay / 1000000 : 1;
153 break;
154 case display_DELTA:
155 sub = &oldstat;
156 break;
157 case display_SINCE:
158 sub = &initstat;
159 break;
160 default:
161 *ret = curstat;
162 return;
163 }
164 #define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
165 DO(i.ips_total);
166 DO(i.ips_badsum);
167 DO(i.ips_tooshort);
168 DO(i.ips_toosmall);
169 DO(i.ips_badhlen);
170 DO(i.ips_badlen);
171 DO(i.ips_fragments);
172 DO(i.ips_fragdropped);
173 DO(i.ips_fragtimeout);
174 DO(i.ips_forward);
175 DO(i.ips_cantforward);
176 DO(i.ips_redirectsent);
177 DO(i.ips_noproto);
178 DO(i.ips_delivered);
179 DO(i.ips_localout);
180 DO(i.ips_odropped);
181 DO(i.ips_reassembled);
182 DO(i.ips_fragmented);
183 DO(i.ips_ofragments);
184 DO(i.ips_cantfrag);
185 DO(i.ips_badoptions);
186 DO(i.ips_noroute);
187 DO(i.ips_badvers);
188 DO(i.ips_rawout);
189 DO(i.ips_toolong);
190 DO(i.ips_notmember);
191 DO(u.udps_ipackets);
192 DO(u.udps_hdrops);
193 DO(u.udps_badsum);
194 DO(u.udps_nosum);
195 DO(u.udps_badlen);
196 DO(u.udps_noport);
197 DO(u.udps_noportbcast);
198 DO(u.udps_fullsock);
199 DO(u.udps_opackets);
200 #undef DO
201 }
202
203 void
showip(void)204 showip(void)
205 {
206 struct stat stats;
207 uint64_t totalout;
208
209 domode(&stats);
210 totalout = stats.i.ips_forward + stats.i.ips_localout;
211
212 #define DO(stat, row, col) \
213 mvwprintw(wnd, row, col, "%9"PRIu64, stats.stat)
214
215 DO(i.ips_total, 1, 0);
216 mvwprintw(wnd, 1, 35, "%9"PRIu64, totalout);
217 DO(i.ips_badsum, 2, 0);
218 DO(i.ips_localout, 2, 35);
219 DO(i.ips_tooshort, 3, 0);
220 DO(i.ips_odropped, 3, 35);
221 DO(i.ips_toosmall, 4, 0);
222 DO(i.ips_ofragments, 4, 35);
223 DO(i.ips_badhlen, 5, 0);
224 DO(i.ips_cantfrag, 5, 35);
225 DO(i.ips_badlen, 6, 0);
226 DO(i.ips_noroute, 6, 35);
227 DO(i.ips_badvers, 7, 0);
228 DO(i.ips_rawout, 7, 35);
229 DO(i.ips_toolong, 8, 0);
230 DO(i.ips_fragments, 9, 0);
231 DO(i.ips_fragdropped, 10, 0);
232 DO(u.udps_ipackets, 10, 35);
233 DO(i.ips_fragtimeout, 11, 0);
234 DO(u.udps_hdrops, 11, 35);
235 DO(i.ips_reassembled, 12, 0);
236 DO(u.udps_badsum, 12, 35);
237 DO(i.ips_forward, 13, 0);
238 DO(u.udps_nosum, 13, 35);
239 DO(i.ips_cantforward, 14, 0);
240 DO(u.udps_badlen, 14, 35);
241 DO(i.ips_redirectsent, 15, 0);
242 DO(u.udps_noport, 15, 35);
243 DO(i.ips_badoptions, 16, 0);
244 DO(u.udps_noportbcast, 16, 35);
245 DO(i.ips_notmember, 17, 0);
246 DO(u.udps_fullsock, 17, 35);
247 DO(i.ips_delivered, 18, 0);
248 DO(u.udps_opackets, 18, 35);
249 #undef DO
250 }
251
252 int
initip(void)253 initip(void)
254 {
255 size_t len;
256 int name[4];
257
258 name[0] = CTL_NET;
259 name[1] = PF_INET;
260 name[2] = IPPROTO_IP;
261 name[3] = IPCTL_STATS;
262
263 len = 0;
264 if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
265 error("sysctl getting ipstat size failed");
266 return 0;
267 }
268 if (len > sizeof curstat.i) {
269 error("ipstat structure has grown--recompile systat!");
270 return 0;
271 }
272 if (sysctl(name, 4, &initstat.i, &len, 0, 0) < 0) {
273 error("sysctl getting ipstat failed");
274 return 0;
275 }
276 name[2] = IPPROTO_UDP;
277 name[3] = UDPCTL_STATS;
278
279 len = 0;
280 if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
281 error("sysctl getting udpstat size failed");
282 return 0;
283 }
284 if (len > sizeof curstat.u) {
285 error("ipstat structure has grown--recompile systat!");
286 return 0;
287 }
288 if (sysctl(name, 4, &initstat.u, &len, 0, 0) < 0) {
289 error("sysctl getting udpstat failed");
290 return 0;
291 }
292 oldstat = initstat;
293 return 1;
294 }
295
296 void
resetip(void)297 resetip(void)
298 {
299 size_t len;
300 int name[4];
301
302 name[0] = CTL_NET;
303 name[1] = PF_INET;
304 name[2] = IPPROTO_IP;
305 name[3] = IPCTL_STATS;
306
307 len = sizeof initstat.i;
308 if (sysctl(name, 4, &initstat.i, &len, 0, 0) < 0) {
309 error("sysctl getting ipstat failed");
310 }
311 name[2] = IPPROTO_UDP;
312 name[3] = UDPCTL_STATS;
313
314 len = sizeof initstat.u;
315 if (sysctl(name, 4, &initstat.u, &len, 0, 0) < 0) {
316 error("sysctl getting udpstat failed");
317 }
318 oldstat = initstat;
319 }
320
321 void
fetchip(void)322 fetchip(void)
323 {
324 int name[4];
325 size_t len;
326
327 oldstat = curstat;
328 name[0] = CTL_NET;
329 name[1] = PF_INET;
330 name[2] = IPPROTO_IP;
331 name[3] = IPCTL_STATS;
332 len = sizeof curstat.i;
333
334 if (sysctl(name, 4, &curstat.i, &len, 0, 0) < 0)
335 return;
336 name[2] = IPPROTO_UDP;
337 name[3] = UDPCTL_STATS;
338 len = sizeof curstat.u;
339
340 if (sysctl(name, 4, &curstat.u, &len, 0, 0) < 0)
341 return;
342 }
343