1 /*-
2 * Copyright (c) 1983, 1988, 1993, 1995
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 * 4. 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 #if 0
31 #ifndef lint
32 static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95";
33 #endif /* not lint */
34 #endif
35
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD: stable/9/usr.bin/netstat/inet.c 252555 2013-07-03 09:25:29Z np $");
38
39 #include <sys/param.h>
40 #include <sys/queue.h>
41 #include <sys/domain.h>
42 #include <sys/protosw.h>
43 #include <sys/socket.h>
44 #include <sys/socketvar.h>
45 #include <sys/sysctl.h>
46
47 #include <net/route.h>
48 #include <net/if_arp.h>
49 #include <netinet/in.h>
50 #include <netinet/in_systm.h>
51 #include <netinet/ip.h>
52 #include <netinet/ip_carp.h>
53 #ifdef INET6
54 #include <netinet/ip6.h>
55 #endif /* INET6 */
56 #include <netinet/in_pcb.h>
57 #include <netinet/ip_icmp.h>
58 #include <netinet/icmp_var.h>
59 #include <netinet/igmp_var.h>
60 #include <netinet/ip_var.h>
61 #include <netinet/pim_var.h>
62 #include <netinet/tcp.h>
63 #include <netinet/tcpip.h>
64 #include <netinet/tcp_seq.h>
65 #define TCPSTATES
66 #include <netinet/tcp_fsm.h>
67 #include <netinet/tcp_timer.h>
68 #include <netinet/tcp_var.h>
69 #include <netinet/tcp_debug.h>
70 #include <netinet/udp.h>
71 #include <netinet/udp_var.h>
72
73 #include <arpa/inet.h>
74 #include <err.h>
75 #include <errno.h>
76 #include <libutil.h>
77 #include <netdb.h>
78 #include <stdint.h>
79 #include <stdio.h>
80 #include <stdlib.h>
81 #include <string.h>
82 #include <unistd.h>
83 #include "netstat.h"
84
85 char *inetname(struct in_addr *);
86 void inetprint(struct in_addr *, int, const char *, int);
87 #ifdef INET6
88 static int udp_done, tcp_done, sdp_done;
89 #endif /* INET6 */
90
91 static int
pcblist_sysctl(int proto,const char * name,char ** bufp,int istcp)92 pcblist_sysctl(int proto, const char *name, char **bufp, int istcp)
93 {
94 const char *mibvar;
95 char *buf;
96 size_t len;
97
98 switch (proto) {
99 case IPPROTO_TCP:
100 mibvar = "net.inet.tcp.pcblist";
101 break;
102 case IPPROTO_UDP:
103 mibvar = "net.inet.udp.pcblist";
104 break;
105 case IPPROTO_DIVERT:
106 mibvar = "net.inet.divert.pcblist";
107 break;
108 default:
109 mibvar = "net.inet.raw.pcblist";
110 break;
111 }
112 if (strncmp(name, "sdp", 3) == 0)
113 mibvar = "net.inet.sdp.pcblist";
114 len = 0;
115 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
116 if (errno != ENOENT)
117 warn("sysctl: %s", mibvar);
118 return (0);
119 }
120 if ((buf = malloc(len)) == 0) {
121 warnx("malloc %lu bytes", (u_long)len);
122 return (0);
123 }
124 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
125 warn("sysctl: %s", mibvar);
126 free(buf);
127 return (0);
128 }
129 *bufp = buf;
130 return (1);
131 }
132
133 /*
134 * Copied directly from uipc_socket2.c. We leave out some fields that are in
135 * nested structures that aren't used to avoid extra work.
136 */
137 static void
sbtoxsockbuf(struct sockbuf * sb,struct xsockbuf * xsb)138 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
139 {
140 xsb->sb_cc = sb->sb_cc;
141 xsb->sb_hiwat = sb->sb_hiwat;
142 xsb->sb_mbcnt = sb->sb_mbcnt;
143 xsb->sb_mcnt = sb->sb_mcnt;
144 xsb->sb_ccnt = sb->sb_ccnt;
145 xsb->sb_mbmax = sb->sb_mbmax;
146 xsb->sb_lowat = sb->sb_lowat;
147 xsb->sb_flags = sb->sb_flags;
148 xsb->sb_timeo = sb->sb_timeo;
149 }
150
151 int
sotoxsocket(struct socket * so,struct xsocket * xso)152 sotoxsocket(struct socket *so, struct xsocket *xso)
153 {
154 struct protosw proto;
155 struct domain domain;
156
157 bzero(xso, sizeof *xso);
158 xso->xso_len = sizeof *xso;
159 xso->xso_so = so;
160 xso->so_type = so->so_type;
161 xso->so_options = so->so_options;
162 xso->so_linger = so->so_linger;
163 xso->so_state = so->so_state;
164 xso->so_pcb = so->so_pcb;
165 if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
166 return (-1);
167 xso->xso_protocol = proto.pr_protocol;
168 if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
169 return (-1);
170 xso->xso_family = domain.dom_family;
171 xso->so_qlen = so->so_qlen;
172 xso->so_incqlen = so->so_incqlen;
173 xso->so_qlimit = so->so_qlimit;
174 xso->so_timeo = so->so_timeo;
175 xso->so_error = so->so_error;
176 xso->so_oobmark = so->so_oobmark;
177 sbtoxsockbuf(&so->so_snd, &xso->so_snd);
178 sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
179 return (0);
180 }
181
182 static int
pcblist_kvm(u_long off,char ** bufp,int istcp)183 pcblist_kvm(u_long off, char **bufp, int istcp)
184 {
185 struct inpcbinfo pcbinfo;
186 struct inpcbhead listhead;
187 struct inpcb *inp;
188 struct xinpcb xi;
189 struct xinpgen xig;
190 struct xtcpcb xt;
191 struct socket so;
192 struct xsocket *xso;
193 char *buf, *p;
194 size_t len;
195
196 if (off == 0)
197 return (0);
198 kread(off, &pcbinfo, sizeof(pcbinfo));
199 if (istcp)
200 len = 2 * sizeof(xig) +
201 (pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
202 sizeof(struct xtcpcb);
203 else
204 len = 2 * sizeof(xig) +
205 (pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
206 sizeof(struct xinpcb);
207 if ((buf = malloc(len)) == 0) {
208 warnx("malloc %lu bytes", (u_long)len);
209 return (0);
210 }
211 p = buf;
212
213 #define COPYOUT(obj, size) do { \
214 if (len < (size)) { \
215 warnx("buffer size exceeded"); \
216 goto fail; \
217 } \
218 bcopy((obj), p, (size)); \
219 len -= (size); \
220 p += (size); \
221 } while (0)
222
223 #define KREAD(off, buf, len) do { \
224 if (kread((uintptr_t)(off), (buf), (len)) != 0) \
225 goto fail; \
226 } while (0)
227
228 /* Write out header. */
229 xig.xig_len = sizeof xig;
230 xig.xig_count = pcbinfo.ipi_count;
231 xig.xig_gen = pcbinfo.ipi_gencnt;
232 xig.xig_sogen = 0;
233 COPYOUT(&xig, sizeof xig);
234
235 /* Walk the PCB list. */
236 xt.xt_len = sizeof xt;
237 xi.xi_len = sizeof xi;
238 if (istcp)
239 xso = &xt.xt_socket;
240 else
241 xso = &xi.xi_socket;
242 KREAD(pcbinfo.ipi_listhead, &listhead, sizeof(listhead));
243 LIST_FOREACH(inp, &listhead, inp_list) {
244 if (istcp) {
245 KREAD(inp, &xt.xt_inp, sizeof(*inp));
246 inp = &xt.xt_inp;
247 } else {
248 KREAD(inp, &xi.xi_inp, sizeof(*inp));
249 inp = &xi.xi_inp;
250 }
251
252 if (inp->inp_gencnt > pcbinfo.ipi_gencnt)
253 continue;
254
255 if (istcp) {
256 if (inp->inp_ppcb == NULL)
257 bzero(&xt.xt_tp, sizeof xt.xt_tp);
258 else if (inp->inp_flags & INP_TIMEWAIT) {
259 bzero(&xt.xt_tp, sizeof xt.xt_tp);
260 xt.xt_tp.t_state = TCPS_TIME_WAIT;
261 } else
262 KREAD(inp->inp_ppcb, &xt.xt_tp,
263 sizeof xt.xt_tp);
264 }
265 if (inp->inp_socket) {
266 KREAD(inp->inp_socket, &so, sizeof(so));
267 if (sotoxsocket(&so, xso) != 0)
268 goto fail;
269 } else {
270 bzero(xso, sizeof(*xso));
271 if (istcp)
272 xso->xso_protocol = IPPROTO_TCP;
273 }
274 if (istcp)
275 COPYOUT(&xt, sizeof xt);
276 else
277 COPYOUT(&xi, sizeof xi);
278 }
279
280 /* Reread the pcbinfo and write out the footer. */
281 kread(off, &pcbinfo, sizeof(pcbinfo));
282 xig.xig_count = pcbinfo.ipi_count;
283 xig.xig_gen = pcbinfo.ipi_gencnt;
284 COPYOUT(&xig, sizeof xig);
285
286 *bufp = buf;
287 return (1);
288
289 fail:
290 free(buf);
291 return (0);
292 #undef COPYOUT
293 #undef KREAD
294 }
295
296 /*
297 * Print a summary of connections related to an Internet
298 * protocol. For TCP, also give state of connection.
299 * Listening processes (aflag) are suppressed unless the
300 * -a (all) flag is specified.
301 */
302 void
protopr(u_long off,const char * name,int af1,int proto)303 protopr(u_long off, const char *name, int af1, int proto)
304 {
305 int istcp;
306 static int first = 1;
307 char *buf;
308 const char *vchar;
309 struct tcpcb *tp = NULL;
310 struct inpcb *inp;
311 struct xinpgen *xig, *oxig;
312 struct xsocket *so;
313 struct xtcp_timer *timer;
314
315 istcp = 0;
316 switch (proto) {
317 case IPPROTO_TCP:
318 #ifdef INET6
319 if (strncmp(name, "sdp", 3) != 0) {
320 if (tcp_done != 0)
321 return;
322 else
323 tcp_done = 1;
324 } else {
325 if (sdp_done != 0)
326 return;
327 else
328 sdp_done = 1;
329 }
330 #endif
331 istcp = 1;
332 break;
333 case IPPROTO_UDP:
334 #ifdef INET6
335 if (udp_done != 0)
336 return;
337 else
338 udp_done = 1;
339 #endif
340 break;
341 }
342 if (live) {
343 if (!pcblist_sysctl(proto, name, &buf, istcp))
344 return;
345 } else {
346 if (!pcblist_kvm(off, &buf, istcp))
347 return;
348 }
349
350 oxig = xig = (struct xinpgen *)buf;
351 for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
352 xig->xig_len > sizeof(struct xinpgen);
353 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
354 if (istcp) {
355 timer = &((struct xtcpcb *)xig)->xt_timer;
356 tp = &((struct xtcpcb *)xig)->xt_tp;
357 inp = &((struct xtcpcb *)xig)->xt_inp;
358 so = &((struct xtcpcb *)xig)->xt_socket;
359 } else {
360 inp = &((struct xinpcb *)xig)->xi_inp;
361 so = &((struct xinpcb *)xig)->xi_socket;
362 timer = NULL;
363 }
364
365 /* Ignore sockets for protocols other than the desired one. */
366 if (so->xso_protocol != proto)
367 continue;
368
369 /* Ignore PCBs which were freed during copyout. */
370 if (inp->inp_gencnt > oxig->xig_gen)
371 continue;
372
373 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
374 #ifdef INET6
375 || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
376 #endif /* INET6 */
377 || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
378 #ifdef INET6
379 && (inp->inp_vflag & INP_IPV6) == 0
380 #endif /* INET6 */
381 ))
382 )
383 continue;
384 if (!aflag &&
385 (
386 (istcp && tp->t_state == TCPS_LISTEN)
387 || (af1 == AF_INET &&
388 inet_lnaof(inp->inp_laddr) == INADDR_ANY)
389 #ifdef INET6
390 || (af1 == AF_INET6 &&
391 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
392 #endif /* INET6 */
393 || (af1 == AF_UNSPEC &&
394 (((inp->inp_vflag & INP_IPV4) != 0 &&
395 inet_lnaof(inp->inp_laddr) == INADDR_ANY)
396 #ifdef INET6
397 || ((inp->inp_vflag & INP_IPV6) != 0 &&
398 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
399 #endif
400 ))
401 ))
402 continue;
403
404 if (first) {
405 if (!Lflag) {
406 printf("Active Internet connections");
407 if (aflag)
408 printf(" (including servers)");
409 } else
410 printf(
411 "Current listen queue sizes (qlen/incqlen/maxqlen)");
412 putchar('\n');
413 if (Aflag)
414 printf("%-*s ", 2 * (int)sizeof(void *), "Tcpcb");
415 if (Lflag)
416 printf((Aflag && !Wflag) ?
417 "%-5.5s %-14.14s %-18.18s" :
418 "%-5.5s %-14.14s %-22.22s",
419 "Proto", "Listen", "Local Address");
420 else if (Tflag)
421 printf((Aflag && !Wflag) ?
422 "%-5.5s %-6.6s %-6.6s %-6.6s %-18.18s %s" :
423 "%-5.5s %-6.6s %-6.6s %-6.6s %-22.22s %s",
424 "Proto", "Rexmit", "OOORcv", "0-win",
425 "Local Address", "Foreign Address");
426 else {
427 printf((Aflag && !Wflag) ?
428 "%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s" :
429 "%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s",
430 "Proto", "Recv-Q", "Send-Q",
431 "Local Address", "Foreign Address");
432 if (!xflag)
433 printf(" (state)");
434 }
435 if (xflag) {
436 printf(" %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s",
437 "R-MBUF", "S-MBUF", "R-CLUS",
438 "S-CLUS", "R-HIWA", "S-HIWA",
439 "R-LOWA", "S-LOWA", "R-BCNT",
440 "S-BCNT", "R-BMAX", "S-BMAX");
441 printf(" %7.7s %7.7s %7.7s %7.7s %7.7s %7.7s",
442 "rexmt", "persist", "keep",
443 "2msl", "delack", "rcvtime");
444 }
445 putchar('\n');
446 first = 0;
447 }
448 if (Lflag && so->so_qlimit == 0)
449 continue;
450 if (Aflag) {
451 if (istcp)
452 printf("%*lx ", 2 * (int)sizeof(void *), (u_long)inp->inp_ppcb);
453 else
454 printf("%*lx ", 2 * (int)sizeof(void *), (u_long)so->so_pcb);
455 }
456 #ifdef INET6
457 if ((inp->inp_vflag & INP_IPV6) != 0)
458 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
459 "46" : "6 ";
460 else
461 #endif
462 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
463 "4 " : " ";
464 if (istcp && (tp->t_flags & TF_TOE) != 0)
465 printf("%-3.3s%-2.2s ", "toe", vchar);
466 else
467 printf("%-3.3s%-2.2s ", name, vchar);
468 if (Lflag) {
469 char buf1[15];
470
471 snprintf(buf1, 15, "%d/%d/%d", so->so_qlen,
472 so->so_incqlen, so->so_qlimit);
473 printf("%-14.14s ", buf1);
474 } else if (Tflag) {
475 if (istcp)
476 printf("%6u %6u %6u ", tp->t_sndrexmitpack,
477 tp->t_rcvoopack, tp->t_sndzerowin);
478 } else {
479 printf("%6u %6u ", so->so_rcv.sb_cc, so->so_snd.sb_cc);
480 }
481 if (numeric_port) {
482 if (inp->inp_vflag & INP_IPV4) {
483 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
484 name, 1);
485 if (!Lflag)
486 inetprint(&inp->inp_faddr,
487 (int)inp->inp_fport, name, 1);
488 }
489 #ifdef INET6
490 else if (inp->inp_vflag & INP_IPV6) {
491 inet6print(&inp->in6p_laddr,
492 (int)inp->inp_lport, name, 1);
493 if (!Lflag)
494 inet6print(&inp->in6p_faddr,
495 (int)inp->inp_fport, name, 1);
496 } /* else nothing printed now */
497 #endif /* INET6 */
498 } else if (inp->inp_flags & INP_ANONPORT) {
499 if (inp->inp_vflag & INP_IPV4) {
500 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
501 name, 1);
502 if (!Lflag)
503 inetprint(&inp->inp_faddr,
504 (int)inp->inp_fport, name, 0);
505 }
506 #ifdef INET6
507 else if (inp->inp_vflag & INP_IPV6) {
508 inet6print(&inp->in6p_laddr,
509 (int)inp->inp_lport, name, 1);
510 if (!Lflag)
511 inet6print(&inp->in6p_faddr,
512 (int)inp->inp_fport, name, 0);
513 } /* else nothing printed now */
514 #endif /* INET6 */
515 } else {
516 if (inp->inp_vflag & INP_IPV4) {
517 inetprint(&inp->inp_laddr, (int)inp->inp_lport,
518 name, 0);
519 if (!Lflag)
520 inetprint(&inp->inp_faddr,
521 (int)inp->inp_fport, name,
522 inp->inp_lport != inp->inp_fport);
523 }
524 #ifdef INET6
525 else if (inp->inp_vflag & INP_IPV6) {
526 inet6print(&inp->in6p_laddr,
527 (int)inp->inp_lport, name, 0);
528 if (!Lflag)
529 inet6print(&inp->in6p_faddr,
530 (int)inp->inp_fport, name,
531 inp->inp_lport != inp->inp_fport);
532 } /* else nothing printed now */
533 #endif /* INET6 */
534 }
535 if (xflag) {
536 printf("%6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u",
537 so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
538 so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
539 so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
540 so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
541 so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
542 so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
543 if (timer != NULL)
544 printf(" %4d.%02d %4d.%02d %4d.%02d %4d.%02d %4d.%02d %4d.%02d",
545 timer->tt_rexmt / 1000, (timer->tt_rexmt % 1000) / 10,
546 timer->tt_persist / 1000, (timer->tt_persist % 1000) / 10,
547 timer->tt_keep / 1000, (timer->tt_keep % 1000) / 10,
548 timer->tt_2msl / 1000, (timer->tt_2msl % 1000) / 10,
549 timer->tt_delack / 1000, (timer->tt_delack % 1000) / 10,
550 timer->t_rcvtime / 1000, (timer->t_rcvtime % 1000) / 10);
551 }
552 if (istcp && !Lflag && !xflag && !Tflag) {
553 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
554 printf("%d", tp->t_state);
555 else {
556 printf("%s", tcpstates[tp->t_state]);
557 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
558 /* Show T/TCP `hidden state' */
559 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
560 putchar('*');
561 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
562 }
563 }
564 putchar('\n');
565 }
566 if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
567 if (oxig->xig_count > xig->xig_count) {
568 printf("Some %s sockets may have been deleted.\n",
569 name);
570 } else if (oxig->xig_count < xig->xig_count) {
571 printf("Some %s sockets may have been created.\n",
572 name);
573 } else {
574 printf(
575 "Some %s sockets may have been created or deleted.\n",
576 name);
577 }
578 }
579 free(buf);
580 }
581
582 /*
583 * Dump TCP statistics structure.
584 */
585 void
tcp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)586 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
587 {
588 struct tcpstat tcpstat, zerostat;
589 size_t len = sizeof tcpstat;
590
591 #ifdef INET6
592 if (tcp_done != 0)
593 return;
594 else
595 tcp_done = 1;
596 #endif
597
598 if (live) {
599 if (zflag)
600 memset(&zerostat, 0, len);
601 if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len,
602 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
603 warn("sysctl: net.inet.tcp.stats");
604 return;
605 }
606 } else
607 kread(off, &tcpstat, len);
608
609 printf ("%s:\n", name);
610
611 #define p(f, m) if (tcpstat.f || sflag <= 1) \
612 printf(m, tcpstat.f, plural(tcpstat.f))
613 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \
614 printf(m, tcpstat.f)
615 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
616 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2))
617 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
618 printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2)
619 #define p3(f, m) if (tcpstat.f || sflag <= 1) \
620 printf(m, tcpstat.f, pluralies(tcpstat.f))
621
622 p(tcps_sndtotal, "\t%lu packet%s sent\n");
623 p2(tcps_sndpack,tcps_sndbyte, "\t\t%lu data packet%s (%lu byte%s)\n");
624 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte,
625 "\t\t%lu data packet%s (%lu byte%s) retransmitted\n");
626 p(tcps_sndrexmitbad,
627 "\t\t%lu data packet%s unnecessarily retransmitted\n");
628 p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n");
629 p2a(tcps_sndacks, tcps_delack,
630 "\t\t%lu ack-only packet%s (%lu delayed)\n");
631 p(tcps_sndurg, "\t\t%lu URG only packet%s\n");
632 p(tcps_sndprobe, "\t\t%lu window probe packet%s\n");
633 p(tcps_sndwinup, "\t\t%lu window update packet%s\n");
634 p(tcps_sndctrl, "\t\t%lu control packet%s\n");
635 p(tcps_rcvtotal, "\t%lu packet%s received\n");
636 p2(tcps_rcvackpack, tcps_rcvackbyte,
637 "\t\t%lu ack%s (for %lu byte%s)\n");
638 p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n");
639 p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n");
640 p2(tcps_rcvpack, tcps_rcvbyte,
641 "\t\t%lu packet%s (%lu byte%s) received in-sequence\n");
642 p2(tcps_rcvduppack, tcps_rcvdupbyte,
643 "\t\t%lu completely duplicate packet%s (%lu byte%s)\n");
644 p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n");
645 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte,
646 "\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n");
647 p2(tcps_rcvoopack, tcps_rcvoobyte,
648 "\t\t%lu out-of-order packet%s (%lu byte%s)\n");
649 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin,
650 "\t\t%lu packet%s (%lu byte%s) of data after window\n");
651 p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n");
652 p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n");
653 p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n");
654 p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n");
655 p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n");
656 p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n");
657 p1a(tcps_rcvmemdrop, "\t\t%lu discarded due to memory problems\n");
658 p(tcps_connattempt, "\t%lu connection request%s\n");
659 p(tcps_accepts, "\t%lu connection accept%s\n");
660 p(tcps_badsyn, "\t%lu bad connection attempt%s\n");
661 p(tcps_listendrop, "\t%lu listen queue overflow%s\n");
662 p(tcps_badrst, "\t%lu ignored RSTs in the window%s\n");
663 p(tcps_connects, "\t%lu connection%s established (including accepts)\n");
664 p2(tcps_closed, tcps_drops,
665 "\t%lu connection%s closed (including %lu drop%s)\n");
666 p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n");
667 p(tcps_cachedrttvar,
668 "\t\t%lu connection%s updated cached RTT variance on close\n");
669 p(tcps_cachedssthresh,
670 "\t\t%lu connection%s updated cached ssthresh on close\n");
671 p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n");
672 p2(tcps_rttupdated, tcps_segstimed,
673 "\t%lu segment%s updated rtt (of %lu attempt%s)\n");
674 p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n");
675 p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n");
676 p(tcps_persisttimeo, "\t%lu persist timeout%s\n");
677 p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n");
678 p(tcps_finwait2_drops,
679 "\t%lu Connection%s (fin_wait_2) dropped because of timeout\n");
680 p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n");
681 p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n");
682 p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n");
683 p(tcps_predack, "\t%lu correct ACK header prediction%s\n");
684 p(tcps_preddat, "\t%lu correct data packet header prediction%s\n");
685
686 p3(tcps_sc_added, "\t%lu syncache entr%s added\n");
687 p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n");
688 p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n");
689 p1a(tcps_sc_dropped, "\t\t%lu dropped\n");
690 p1a(tcps_sc_completed, "\t\t%lu completed\n");
691 p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n");
692 p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n");
693 p1a(tcps_sc_reset, "\t\t%lu reset\n");
694 p1a(tcps_sc_stale, "\t\t%lu stale\n");
695 p1a(tcps_sc_aborted, "\t\t%lu aborted\n");
696 p1a(tcps_sc_badack, "\t\t%lu badack\n");
697 p1a(tcps_sc_unreach, "\t\t%lu unreach\n");
698 p(tcps_sc_zonefail, "\t\t%lu zone failure%s\n");
699 p(tcps_sc_sendcookie, "\t%lu cookie%s sent\n");
700 p(tcps_sc_recvcookie, "\t%lu cookie%s received\n");
701
702 p(tcps_hc_added, "\t%lu hostcache entrie%s added\n");
703 p1a(tcps_hc_bucketoverflow, "\t\t%lu bucket overflow\n");
704
705 p(tcps_sack_recovery_episode, "\t%lu SACK recovery episode%s\n");
706 p(tcps_sack_rexmits,
707 "\t%lu segment rexmit%s in SACK recovery episodes\n");
708 p(tcps_sack_rexmit_bytes,
709 "\t%lu byte rexmit%s in SACK recovery episodes\n");
710 p(tcps_sack_rcv_blocks,
711 "\t%lu SACK option%s (SACK blocks) received\n");
712 p(tcps_sack_send_blocks, "\t%lu SACK option%s (SACK blocks) sent\n");
713 p1a(tcps_sack_sboverflow, "\t%lu SACK scoreboard overflow\n");
714
715 p(tcps_ecn_ce, "\t%lu packet%s with ECN CE bit set\n");
716 p(tcps_ecn_ect0, "\t%lu packet%s with ECN ECT(0) bit set\n");
717 p(tcps_ecn_ect1, "\t%lu packet%s with ECN ECT(1) bit set\n");
718 p(tcps_ecn_shs, "\t%lu successful ECN handshake%s\n");
719 p(tcps_ecn_rcwnd, "\t%lu time%s ECN reduced the congestion window\n");
720 #undef p
721 #undef p1a
722 #undef p2
723 #undef p2a
724 #undef p3
725 }
726
727 /*
728 * Dump UDP statistics structure.
729 */
730 void
udp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)731 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
732 {
733 struct udpstat udpstat, zerostat;
734 size_t len = sizeof udpstat;
735 u_long delivered;
736
737 #ifdef INET6
738 if (udp_done != 0)
739 return;
740 else
741 udp_done = 1;
742 #endif
743
744 if (live) {
745 if (zflag)
746 memset(&zerostat, 0, len);
747 if (sysctlbyname("net.inet.udp.stats", &udpstat, &len,
748 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
749 warn("sysctl: net.inet.udp.stats");
750 return;
751 }
752 } else
753 kread(off, &udpstat, len);
754
755 printf("%s:\n", name);
756 #define p(f, m) if (udpstat.f || sflag <= 1) \
757 printf(m, udpstat.f, plural(udpstat.f))
758 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
759 printf(m, udpstat.f)
760 p(udps_ipackets, "\t%lu datagram%s received\n");
761 p1a(udps_hdrops, "\t%lu with incomplete header\n");
762 p1a(udps_badlen, "\t%lu with bad data length field\n");
763 p1a(udps_badsum, "\t%lu with bad checksum\n");
764 p1a(udps_nosum, "\t%lu with no checksum\n");
765 p1a(udps_noport, "\t%lu dropped due to no socket\n");
766 p(udps_noportbcast,
767 "\t%lu broadcast/multicast datagram%s undelivered\n");
768 p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n");
769 p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n");
770 delivered = udpstat.udps_ipackets -
771 udpstat.udps_hdrops -
772 udpstat.udps_badlen -
773 udpstat.udps_badsum -
774 udpstat.udps_noport -
775 udpstat.udps_noportbcast -
776 udpstat.udps_fullsock;
777 if (delivered || sflag <= 1)
778 printf("\t%lu delivered\n", delivered);
779 p(udps_opackets, "\t%lu datagram%s output\n");
780 /* the next statistic is cumulative in udps_noportbcast */
781 p(udps_filtermcast,
782 "\t%lu time%s multicast source filter matched\n");
783 #undef p
784 #undef p1a
785 }
786
787 /*
788 * Dump CARP statistics structure.
789 */
790 void
carp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)791 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
792 {
793 struct carpstats carpstat, zerostat;
794 size_t len = sizeof(struct carpstats);
795
796 if (live) {
797 if (zflag)
798 memset(&zerostat, 0, len);
799 if (sysctlbyname("net.inet.carp.stats", &carpstat, &len,
800 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
801 if (errno != ENOENT)
802 warn("sysctl: net.inet.carp.stats");
803 return;
804 }
805 } else {
806 if (off == 0)
807 return;
808 kread(off, &carpstat, len);
809 }
810
811 printf("%s:\n", name);
812
813 #define p(f, m) if (carpstat.f || sflag <= 1) \
814 printf(m, (uintmax_t)carpstat.f, plural(carpstat.f))
815 #define p2(f, m) if (carpstat.f || sflag <= 1) \
816 printf(m, (uintmax_t)carpstat.f)
817
818 p(carps_ipackets, "\t%ju packet%s received (IPv4)\n");
819 p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n");
820 p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n");
821 p(carps_hdrops, "\t\t%ju packet%s shorter than header\n");
822 p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n");
823 p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n");
824 p2(carps_badlen, "\t\t%ju discarded because packet too short\n");
825 p2(carps_badauth, "\t\t%ju discarded for bad authentication\n");
826 p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n");
827 p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n");
828 p(carps_opackets, "\t%ju packet%s sent (IPv4)\n");
829 p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n");
830 p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n");
831 #if notyet
832 p(carps_ostates, "\t\t%s state update%s sent\n");
833 #endif
834 #undef p
835 #undef p2
836 }
837
838 /*
839 * Dump IP statistics structure.
840 */
841 void
ip_stats(u_long off,const char * name,int af1 __unused,int proto __unused)842 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
843 {
844 struct ipstat ipstat, zerostat;
845 size_t len = sizeof ipstat;
846
847 if (live) {
848 if (zflag)
849 memset(&zerostat, 0, len);
850 if (sysctlbyname("net.inet.ip.stats", &ipstat, &len,
851 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
852 warn("sysctl: net.inet.ip.stats");
853 return;
854 }
855 } else
856 kread(off, &ipstat, len);
857
858 printf("%s:\n", name);
859
860 #define p(f, m) if (ipstat.f || sflag <= 1) \
861 printf(m, ipstat.f, plural(ipstat.f))
862 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
863 printf(m, ipstat.f)
864
865 p(ips_total, "\t%lu total packet%s received\n");
866 p(ips_badsum, "\t%lu bad header checksum%s\n");
867 p1a(ips_toosmall, "\t%lu with size smaller than minimum\n");
868 p1a(ips_tooshort, "\t%lu with data size < data length\n");
869 p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n");
870 p1a(ips_badhlen, "\t%lu with header length < data size\n");
871 p1a(ips_badlen, "\t%lu with data length < header length\n");
872 p1a(ips_badoptions, "\t%lu with bad options\n");
873 p1a(ips_badvers, "\t%lu with incorrect version number\n");
874 p(ips_fragments, "\t%lu fragment%s received\n");
875 p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n");
876 p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n");
877 p(ips_reassembled, "\t%lu packet%s reassembled ok\n");
878 p(ips_delivered, "\t%lu packet%s for this host\n");
879 p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n");
880 p(ips_forward, "\t%lu packet%s forwarded");
881 p(ips_fastforward, " (%lu packet%s fast forwarded)");
882 if (ipstat.ips_forward || sflag <= 1)
883 putchar('\n');
884 p(ips_cantforward, "\t%lu packet%s not forwardable\n");
885 p(ips_notmember,
886 "\t%lu packet%s received for unknown multicast group\n");
887 p(ips_redirectsent, "\t%lu redirect%s sent\n");
888 p(ips_localout, "\t%lu packet%s sent from this host\n");
889 p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n");
890 p(ips_odropped,
891 "\t%lu output packet%s dropped due to no bufs, etc.\n");
892 p(ips_noroute, "\t%lu output packet%s discarded due to no route\n");
893 p(ips_fragmented, "\t%lu output datagram%s fragmented\n");
894 p(ips_ofragments, "\t%lu fragment%s created\n");
895 p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n");
896 p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n");
897 p(ips_badaddr, "\t%lu datagram%s with bad address in header\n");
898 #undef p
899 #undef p1a
900 }
901
902 /*
903 * Dump ARP statistics structure.
904 */
905 void
arp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)906 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
907 {
908 struct arpstat arpstat, zerostat;
909 size_t len = sizeof(arpstat);
910
911 if (live) {
912 if (zflag)
913 memset(&zerostat, 0, len);
914 if (sysctlbyname("net.link.ether.arp.stats", &arpstat, &len,
915 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
916 warn("sysctl: net.link.ether.arp.stats");
917 return;
918 }
919 } else
920 kread(off, &arpstat, len);
921
922 printf("%s:\n", name);
923
924 #define p(f, m) if (arpstat.f || sflag <= 1) \
925 printf(m, arpstat.f, plural(arpstat.f))
926 #define p2(f, m) if (arpstat.f || sflag <= 1) \
927 printf(m, arpstat.f, pluralies(arpstat.f))
928
929 p(txrequests, "\t%lu ARP request%s sent\n");
930 p2(txreplies, "\t%lu ARP repl%s sent\n");
931 p(rxrequests, "\t%lu ARP request%s received\n");
932 p2(rxreplies, "\t%lu ARP repl%s received\n");
933 p(received, "\t%lu ARP packet%s received\n");
934 p(dropped, "\t%lu total packet%s dropped due to no ARP entry\n");
935 p(timeouts, "\t%lu ARP entry%s timed out\n");
936 p(dupips, "\t%lu Duplicate IP%s seen\n");
937 #undef p
938 #undef p2
939 }
940
941
942
943 static const char *icmpnames[ICMP_MAXTYPE + 1] = {
944 "echo reply", /* RFC 792 */
945 "#1",
946 "#2",
947 "destination unreachable", /* RFC 792 */
948 "source quench", /* RFC 792 */
949 "routing redirect", /* RFC 792 */
950 "#6",
951 "#7",
952 "echo", /* RFC 792 */
953 "router advertisement", /* RFC 1256 */
954 "router solicitation", /* RFC 1256 */
955 "time exceeded", /* RFC 792 */
956 "parameter problem", /* RFC 792 */
957 "time stamp", /* RFC 792 */
958 "time stamp reply", /* RFC 792 */
959 "information request", /* RFC 792 */
960 "information request reply", /* RFC 792 */
961 "address mask request", /* RFC 950 */
962 "address mask reply", /* RFC 950 */
963 "#19",
964 "#20",
965 "#21",
966 "#22",
967 "#23",
968 "#24",
969 "#25",
970 "#26",
971 "#27",
972 "#28",
973 "#29",
974 "icmp traceroute", /* RFC 1393 */
975 "datagram conversion error", /* RFC 1475 */
976 "mobile host redirect",
977 "IPv6 where-are-you",
978 "IPv6 i-am-here",
979 "mobile registration req",
980 "mobile registration reply",
981 "domain name request", /* RFC 1788 */
982 "domain name reply", /* RFC 1788 */
983 "icmp SKIP",
984 "icmp photuris", /* RFC 2521 */
985 };
986
987 /*
988 * Dump ICMP statistics.
989 */
990 void
icmp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)991 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
992 {
993 struct icmpstat icmpstat, zerostat;
994 int i, first;
995 size_t len;
996
997 len = sizeof icmpstat;
998 if (live) {
999 if (zflag)
1000 memset(&zerostat, 0, len);
1001 if (sysctlbyname("net.inet.icmp.stats", &icmpstat, &len,
1002 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1003 warn("sysctl: net.inet.icmp.stats");
1004 return;
1005 }
1006 } else
1007 kread(off, &icmpstat, len);
1008
1009 printf("%s:\n", name);
1010
1011 #define p(f, m) if (icmpstat.f || sflag <= 1) \
1012 printf(m, icmpstat.f, plural(icmpstat.f))
1013 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
1014 printf(m, icmpstat.f)
1015 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
1016 printf(m, icmpstat.f, plurales(icmpstat.f))
1017
1018 p(icps_error, "\t%lu call%s to icmp_error\n");
1019 p(icps_oldicmp,
1020 "\t%lu error%s not generated in response to an icmp message\n");
1021 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
1022 if (icmpstat.icps_outhist[i] != 0) {
1023 if (first) {
1024 printf("\tOutput histogram:\n");
1025 first = 0;
1026 }
1027 if (icmpnames[i] != NULL)
1028 printf("\t\t%s: %lu\n", icmpnames[i],
1029 icmpstat.icps_outhist[i]);
1030 else
1031 printf("\t\tunknown ICMP #%d: %lu\n", i,
1032 icmpstat.icps_outhist[i]);
1033 }
1034 p(icps_badcode, "\t%lu message%s with bad code fields\n");
1035 p(icps_tooshort, "\t%lu message%s less than the minimum length\n");
1036 p(icps_checksum, "\t%lu message%s with bad checksum\n");
1037 p(icps_badlen, "\t%lu message%s with bad length\n");
1038 p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n");
1039 p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n");
1040 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
1041 if (icmpstat.icps_inhist[i] != 0) {
1042 if (first) {
1043 printf("\tInput histogram:\n");
1044 first = 0;
1045 }
1046 if (icmpnames[i] != NULL)
1047 printf("\t\t%s: %lu\n", icmpnames[i],
1048 icmpstat.icps_inhist[i]);
1049 else
1050 printf("\t\tunknown ICMP #%d: %lu\n", i,
1051 icmpstat.icps_inhist[i]);
1052 }
1053 p(icps_reflect, "\t%lu message response%s generated\n");
1054 p2(icps_badaddr, "\t%lu invalid return address%s\n");
1055 p(icps_noroute, "\t%lu no return route%s\n");
1056 #undef p
1057 #undef p1a
1058 #undef p2
1059 if (live) {
1060 len = sizeof i;
1061 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1062 0)
1063 return;
1064 printf("\tICMP address mask responses are %sabled\n",
1065 i ? "en" : "dis");
1066 }
1067 }
1068
1069 #ifndef BURN_BRIDGES
1070 /*
1071 * Dump IGMP statistics structure (pre 8.x kernel).
1072 */
1073 static void
igmp_stats_live_old(const char * name)1074 igmp_stats_live_old(const char *name)
1075 {
1076 struct oigmpstat oigmpstat, zerostat;
1077 size_t len = sizeof(oigmpstat);
1078
1079 if (zflag)
1080 memset(&zerostat, 0, len);
1081 if (sysctlbyname("net.inet.igmp.stats", &oigmpstat, &len,
1082 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1083 warn("sysctl: net.inet.igmp.stats");
1084 return;
1085 }
1086
1087 printf("%s:\n", name);
1088
1089 #define p(f, m) if (oigmpstat.f || sflag <= 1) \
1090 printf(m, oigmpstat.f, plural(oigmpstat.f))
1091 #define py(f, m) if (oigmpstat.f || sflag <= 1) \
1092 printf(m, oigmpstat.f, oigmpstat.f != 1 ? "ies" : "y")
1093 p(igps_rcv_total, "\t%u message%s received\n");
1094 p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n");
1095 p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n");
1096 py(igps_rcv_queries, "\t%u membership quer%s received\n");
1097 py(igps_rcv_badqueries,
1098 "\t%u membership quer%s received with invalid field(s)\n");
1099 p(igps_rcv_reports, "\t%u membership report%s received\n");
1100 p(igps_rcv_badreports,
1101 "\t%u membership report%s received with invalid field(s)\n");
1102 p(igps_rcv_ourreports,
1103 "\t%u membership report%s received for groups to which we belong\n");
1104 p(igps_snd_reports, "\t%u membership report%s sent\n");
1105 #undef p
1106 #undef py
1107 }
1108 #endif /* !BURN_BRIDGES */
1109
1110 /*
1111 * Dump IGMP statistics structure.
1112 */
1113 void
igmp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1114 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1115 {
1116 struct igmpstat igmpstat, zerostat;
1117 size_t len;
1118
1119 #ifndef BURN_BRIDGES
1120 if (live) {
1121 /*
1122 * Detect if we are being run against a pre-IGMPv3 kernel.
1123 * We cannot do this for a core file as the legacy
1124 * struct igmpstat has no size field, nor does it
1125 * export it in any readily-available symbols.
1126 */
1127 len = 0;
1128 if (sysctlbyname("net.inet.igmp.stats", NULL, &len, NULL,
1129 0) < 0) {
1130 warn("sysctl: net.inet.igmp.stats");
1131 return;
1132 }
1133 if (len < sizeof(igmpstat)) {
1134 igmp_stats_live_old(name);
1135 return;
1136 }
1137 }
1138 #endif /* !BURN_BRIDGES */
1139
1140 len = sizeof(igmpstat);
1141 if (live) {
1142 if (zflag)
1143 memset(&zerostat, 0, len);
1144 if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len,
1145 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1146 warn("sysctl: net.inet.igmp.stats");
1147 return;
1148 }
1149 } else {
1150 len = sizeof(igmpstat);
1151 kread(off, &igmpstat, len);
1152 }
1153
1154 if (igmpstat.igps_version != IGPS_VERSION_3) {
1155 warnx("%s: version mismatch (%d != %d)", __func__,
1156 igmpstat.igps_version, IGPS_VERSION_3);
1157 }
1158 if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1159 warnx("%s: size mismatch (%d != %d)", __func__,
1160 igmpstat.igps_len, IGPS_VERSION3_LEN);
1161 }
1162
1163 printf("%s:\n", name);
1164
1165 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1166 printf(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1167 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1168 printf(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1169 p64(igps_rcv_total, "\t%ju message%s received\n");
1170 p64(igps_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1171 p64(igps_rcv_badttl, "\t%ju message%s received with wrong TTL\n");
1172 p64(igps_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1173 py64(igps_rcv_v1v2_queries, "\t%ju V1/V2 membership quer%s received\n");
1174 py64(igps_rcv_v3_queries, "\t%ju V3 membership quer%s received\n");
1175 py64(igps_rcv_badqueries,
1176 "\t%ju membership quer%s received with invalid field(s)\n");
1177 py64(igps_rcv_gen_queries, "\t%ju general quer%s received\n");
1178 py64(igps_rcv_group_queries, "\t%ju group quer%s received\n");
1179 py64(igps_rcv_gsr_queries, "\t%ju group-source quer%s received\n");
1180 py64(igps_drop_gsr_queries, "\t%ju group-source quer%s dropped\n");
1181 p64(igps_rcv_reports, "\t%ju membership report%s received\n");
1182 p64(igps_rcv_badreports,
1183 "\t%ju membership report%s received with invalid field(s)\n");
1184 p64(igps_rcv_ourreports,
1185 "\t%ju membership report%s received for groups to which we belong\n");
1186 p64(igps_rcv_nora, "\t%ju V3 report%s received without Router Alert\n");
1187 p64(igps_snd_reports, "\t%ju membership report%s sent\n");
1188 #undef p64
1189 #undef py64
1190 }
1191
1192 /*
1193 * Dump PIM statistics structure.
1194 */
1195 void
pim_stats(u_long off __unused,const char * name,int af1 __unused,int proto __unused)1196 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1197 int proto __unused)
1198 {
1199 struct pimstat pimstat, zerostat;
1200 size_t len = sizeof pimstat;
1201
1202 if (live) {
1203 if (zflag)
1204 memset(&zerostat, 0, len);
1205 if (sysctlbyname("net.inet.pim.stats", &pimstat, &len,
1206 zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1207 if (errno != ENOENT)
1208 warn("sysctl: net.inet.pim.stats");
1209 return;
1210 }
1211 } else {
1212 if (off == 0)
1213 return;
1214 kread(off, &pimstat, len);
1215 }
1216
1217 printf("%s:\n", name);
1218
1219 #define p(f, m) if (pimstat.f || sflag <= 1) \
1220 printf(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1221 #define py(f, m) if (pimstat.f || sflag <= 1) \
1222 printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1223 p(pims_rcv_total_msgs, "\t%ju message%s received\n");
1224 p(pims_rcv_total_bytes, "\t%ju byte%s received\n");
1225 p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1226 p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1227 p(pims_rcv_badversion, "\t%ju message%s received with bad version\n");
1228 p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n");
1229 p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n");
1230 p(pims_rcv_registers_wrongiif,
1231 "\t%ju data register message%s received on wrong iif\n");
1232 p(pims_rcv_badregisters, "\t%ju bad register%s received\n");
1233 p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n");
1234 p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n");
1235 #undef p
1236 #undef py
1237 }
1238
1239 /*
1240 * Pretty print an Internet address (net address + port).
1241 */
1242 void
inetprint(struct in_addr * in,int port,const char * proto,int num_port)1243 inetprint(struct in_addr *in, int port, const char *proto, int num_port)
1244 {
1245 struct servent *sp = 0;
1246 char line[80], *cp;
1247 int width;
1248
1249 if (Wflag)
1250 sprintf(line, "%s.", inetname(in));
1251 else
1252 sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in));
1253 cp = index(line, '\0');
1254 if (!num_port && port)
1255 sp = getservbyport((int)port, proto);
1256 if (sp || port == 0)
1257 sprintf(cp, "%.15s ", sp ? sp->s_name : "*");
1258 else
1259 sprintf(cp, "%d ", ntohs((u_short)port));
1260 width = (Aflag && !Wflag) ? 18 : 22;
1261 if (Wflag)
1262 printf("%-*s ", width, line);
1263 else
1264 printf("%-*.*s ", width, width, line);
1265 }
1266
1267 /*
1268 * Construct an Internet address representation.
1269 * If numeric_addr has been supplied, give
1270 * numeric value, otherwise try for symbolic name.
1271 */
1272 char *
inetname(struct in_addr * inp)1273 inetname(struct in_addr *inp)
1274 {
1275 char *cp;
1276 static char line[MAXHOSTNAMELEN];
1277 struct hostent *hp;
1278 struct netent *np;
1279
1280 cp = 0;
1281 if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1282 int net = inet_netof(*inp);
1283 int lna = inet_lnaof(*inp);
1284
1285 if (lna == INADDR_ANY) {
1286 np = getnetbyaddr(net, AF_INET);
1287 if (np)
1288 cp = np->n_name;
1289 }
1290 if (cp == 0) {
1291 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1292 if (hp) {
1293 cp = hp->h_name;
1294 trimdomain(cp, strlen(cp));
1295 }
1296 }
1297 }
1298 if (inp->s_addr == INADDR_ANY)
1299 strcpy(line, "*");
1300 else if (cp) {
1301 strlcpy(line, cp, sizeof(line));
1302 } else {
1303 inp->s_addr = ntohl(inp->s_addr);
1304 #define C(x) ((u_int)((x) & 0xff))
1305 sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24),
1306 C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr));
1307 }
1308 return (line);
1309 }
1310