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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35
36__FBSDID("$FreeBSD: head/usr.bin/systat/ip.c 175387 2008-01-16 19:27:43Z delphij $");
37
38#ifdef lint
39static const char sccsid[] = "@(#)mbufs.c 8.1 (Berkeley) 6/6/93";
40#endif
41
42/* From:
43 "Id: mbufs.c,v 1.5 1997/02/24 20:59:03 wollman Exp"
44*/
45
46#include <sys/param.h>
47#include <sys/types.h>
48#include <sys/socket.h>
49#include <sys/sysctl.h>
50
51#include <netinet/in.h>
52#include <netinet/in_systm.h>
53#include <netinet/ip.h>
54#include <netinet/ip_var.h>
55#include <netinet/udp.h>
56#include <netinet/udp_var.h>
57
58#include <stdlib.h>
59#include <string.h>
60#include <paths.h>
61
62#include "systat.h"
63#include "extern.h"
64#include "mode.h"
65
66struct stat {
67 struct ipstat i;
68 struct udpstat u;
69};
70
71static struct stat curstat, initstat, oldstat;
72
73/*-
74--0 1 2 3 4 5 6 7
75--0123456789012345678901234567890123456789012345678901234567890123456789012345
7600 IP Input IP Output
7701999999999 total packets received 999999999 total packets sent
7802999999999 - with bad checksums 999999999 - generated locally
7903999999999 - too short for header 999999999 - output drops
8004999999999 - too short for data 999999999 output fragments generated
8105999999999 - with invalid hlen 999999999 - fragmentation failed
8206999999999 - with invalid length 999999999 destinations unreachable
8307999999999 - with invalid version 999999999 packets output via raw IP
8408999999999 - jumbograms
8509999999999 total fragments received UDP Statistics
8610999999999 - fragments dropped 999999999 total input packets
8711999999999 - fragments timed out 999999999 - too short for header
8812999999999 - packets reassembled ok 999999999 - invalid checksum
8913999999999 packets forwarded 999999999 - no checksum
9014999999999 - unreachable dests 999999999 - invalid length
9115999999999 - redirects generated 999999999 - no socket for dest port
9216999999999 option errors 999999999 - no socket for broadcast
9317999999999 unwanted multicasts 999999999 - socket buffer full
9418999999999 delivered to upper layer 999999999 total output packets
95--0123456789012345678901234567890123456789012345678901234567890123456789012345
96--0 1 2 3 4 5 6 7
97*/
98
99WINDOW *
100openip(void)
101{
102 return (subwin(stdscr, LINES-3-1, 0, MAINWIN_ROW, 0));
103}
104
105void
106closeip(WINDOW *w)
107{
108 if (w == NULL)
109 return;
110 wclear(w);
111 wrefresh(w);
112 delwin(w);
113}
114
115void
116labelip(void)
117{
118 wmove(wnd, 0, 0); wclrtoeol(wnd);
119#define L(row, str) mvwprintw(wnd, row, 10, str)
120#define R(row, str) mvwprintw(wnd, row, 45, str);
121 L(0, "IP Input"); R(0, "IP Output");
122 L(1, "total packets received"); R(1, "total packets sent");
123 L(2, "- with bad checksums"); R(2, "- generated locally");
124 L(3, "- too short for header"); R(3, "- output drops");
125 L(4, "- too short for data"); R(4, "output fragments generated");
126 L(5, "- with invalid hlen"); R(5, "- fragmentation failed");
127 L(6, "- with invalid length"); R(6, "destinations unreachable");
128 L(7, "- with invalid version"); R(7, "packets output via raw IP");
129 L(8, "- jumbograms");
130 L(9, "total fragments received"); R(9, "UDP Statistics");
131 L(10, "- fragments dropped"); R(10, "total input packets");
132 L(11, "- fragments timed out"); R(11, "- too short for header");
133 L(12, "- packets reassembled ok"); R(12, "- invalid checksum");
134 L(13, "packets forwarded"); R(13, "- no checksum");
135 L(14, "- unreachable dests"); R(14, "- invalid length");
136 L(15, "- redirects generated"); R(15, "- no socket for dest port");
137 L(16, "option errors"); R(16, "- no socket for broadcast");
138 L(17, "unwanted multicasts"); R(17, "- socket buffer full");
139 L(18, "delivered to upper layer"); R(18, "total output packets");
140#undef L
141#undef R
142}
143
144static void
145domode(struct stat *ret)
146{
147 const struct stat *sub;
148 int divisor = 1;
149
150 switch(currentmode) {
151 case display_RATE:
152 sub = &oldstat;
153 divisor = naptime;
154 break;
155 case display_DELTA:
156 sub = &oldstat;
157 break;
158 case display_SINCE:
159 sub = &initstat;
160 break;
161 default:
162 *ret = curstat;
163 return;
164 }
165#define DO(stat) ret->stat = (curstat.stat - sub->stat) / divisor
166 DO(i.ips_total);
167 DO(i.ips_badsum);
168 DO(i.ips_tooshort);
169 DO(i.ips_toosmall);
170 DO(i.ips_badhlen);
171 DO(i.ips_badlen);
172 DO(i.ips_fragments);
173 DO(i.ips_fragdropped);
174 DO(i.ips_fragtimeout);
175 DO(i.ips_forward);
176 DO(i.ips_cantforward);
177 DO(i.ips_redirectsent);
178 DO(i.ips_noproto);
179 DO(i.ips_delivered);
180 DO(i.ips_localout);
181 DO(i.ips_odropped);
182 DO(i.ips_reassembled);
183 DO(i.ips_fragmented);
184 DO(i.ips_ofragments);
185 DO(i.ips_cantfrag);
186 DO(i.ips_badoptions);
187 DO(i.ips_noroute);
188 DO(i.ips_badvers);
189 DO(i.ips_rawout);
190 DO(i.ips_toolong);
191 DO(i.ips_notmember);
192 DO(u.udps_ipackets);
193 DO(u.udps_hdrops);
194 DO(u.udps_badsum);
195 DO(u.udps_nosum);
196 DO(u.udps_badlen);
197 DO(u.udps_noport);
198 DO(u.udps_noportbcast);
199 DO(u.udps_fullsock);
200 DO(u.udps_opackets);
201#undef DO
202}
203
204void
205showip(void)
206{
207 struct stat stats;
208 u_long totalout;
209
210 domode(&stats);
211 totalout = stats.i.ips_forward + stats.i.ips_localout;
212
213#define DO(stat, row, col) \
214 mvwprintw(wnd, row, col, "%9lu", stats.stat)
215
216 DO(i.ips_total, 1, 0);
217 mvwprintw(wnd, 1, 35, "%9lu", totalout);
218 DO(i.ips_badsum, 2, 0);
219 DO(i.ips_localout, 2, 35);
220 DO(i.ips_tooshort, 3, 0);
221 DO(i.ips_odropped, 3, 35);
222 DO(i.ips_toosmall, 4, 0);
223 DO(i.ips_ofragments, 4, 35);
224 DO(i.ips_badhlen, 5, 0);
225 DO(i.ips_cantfrag, 5, 35);
226 DO(i.ips_badlen, 6, 0);
227 DO(i.ips_noroute, 6, 35);
228 DO(i.ips_badvers, 7, 0);
229 DO(i.ips_rawout, 7, 35);
230 DO(i.ips_toolong, 8, 0);
231 DO(i.ips_fragments, 9, 0);
232 DO(i.ips_fragdropped, 10, 0);
233 DO(u.udps_ipackets, 10, 35);
234 DO(i.ips_fragtimeout, 11, 0);
235 DO(u.udps_hdrops, 11, 35);
236 DO(i.ips_reassembled, 12, 0);
237 DO(u.udps_badsum, 12, 35);
238 DO(i.ips_forward, 13, 0);
239 DO(u.udps_nosum, 13, 35);
240 DO(i.ips_cantforward, 14, 0);
241 DO(u.udps_badlen, 14, 35);
242 DO(i.ips_redirectsent, 15, 0);
243 DO(u.udps_noport, 15, 35);
244 DO(i.ips_badoptions, 16, 0);
245 DO(u.udps_noportbcast, 16, 35);
246 DO(i.ips_notmember, 17, 0);
247 DO(u.udps_fullsock, 17, 35);
248 DO(i.ips_delivered, 18, 0);
249 DO(u.udps_opackets, 18, 35);
250#undef DO
251}
252
253int
254initip(void)
255{
256 size_t len;
257 int name[4];
258
259 name[0] = CTL_NET;
260 name[1] = PF_INET;
261 name[2] = IPPROTO_IP;
262 name[3] = IPCTL_STATS;
263
264 len = 0;
265 if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
266 error("sysctl getting ipstat size failed");
267 return 0;
268 }
269 if (len > sizeof curstat.i) {
270 error("ipstat structure has grown--recompile systat!");
271 return 0;
272 }
273 if (sysctl(name, 4, &initstat.i, &len, 0, 0) < 0) {
274 error("sysctl getting ipstat failed");
275 return 0;
276 }
277 name[2] = IPPROTO_UDP;
278 name[3] = UDPCTL_STATS;
279
280 len = 0;
281 if (sysctl(name, 4, 0, &len, 0, 0) < 0) {
282 error("sysctl getting udpstat size failed");
283 return 0;
284 }
285 if (len > sizeof curstat.u) {
286 error("ipstat structure has grown--recompile systat!");
287 return 0;
288 }
289 if (sysctl(name, 4, &initstat.u, &len, 0, 0) < 0) {
290 error("sysctl getting udpstat failed");
291 return 0;
292 }
293 oldstat = initstat;
294 return 1;
295}
296
297void
298resetip(void)
299{
300 size_t len;
301 int name[4];
302
303 name[0] = CTL_NET;
304 name[1] = PF_INET;
305 name[2] = IPPROTO_IP;
306 name[3] = IPCTL_STATS;
307
308 len = sizeof initstat.i;
309 if (sysctl(name, 4, &initstat.i, &len, 0, 0) < 0) {
310 error("sysctl getting ipstat failed");
311 }
312 name[2] = IPPROTO_UDP;
313 name[3] = UDPCTL_STATS;
314
315 len = sizeof initstat.u;
316 if (sysctl(name, 4, &initstat.u, &len, 0, 0) < 0) {
317 error("sysctl getting udpstat failed");
318 }
319 oldstat = initstat;
320}
321
322void
323fetchip(void)
324{
325 int name[4];
326 size_t len;
327
328 oldstat = curstat;
329 name[0] = CTL_NET;
330 name[1] = PF_INET;
331 name[2] = IPPROTO_IP;
332 name[3] = IPCTL_STATS;
333 len = sizeof curstat.i;
334
335 if (sysctl(name, 4, &curstat.i, &len, 0, 0) < 0)
336 return;
337 name[2] = IPPROTO_UDP;
338 name[3] = UDPCTL_STATS;
339 len = sizeof curstat.u;
340
341 if (sysctl(name, 4, &curstat.u, &len, 0, 0) < 0)
342 return;
343}
344