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 * 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/param.h>
31 #include <sys/queue.h>
32 #include <sys/domain.h>
33 #include <sys/protosw.h>
34 #include <sys/socket.h>
35 #define _WANT_SOCKET
36 #include <sys/socketvar.h>
37 #include <sys/sysctl.h>
38
39 #include <net/route.h>
40 #include <net/if_arp.h>
41 #include <netinet/in.h>
42 #include <netinet/in_systm.h>
43 #include <netinet/ip.h>
44 #include <netinet/ip_carp.h>
45 #ifdef INET6
46 #include <netinet/ip6.h>
47 #endif /* INET6 */
48 #include <netinet/in_pcb.h>
49 #include <netinet/ip_icmp.h>
50 #include <netinet/icmp_var.h>
51 #include <netinet/igmp_var.h>
52 #include <netinet/ip_divert.h>
53 #include <netinet/ip_var.h>
54 #include <netinet/pim_var.h>
55 #include <netinet/tcp.h>
56 #include <netinet/tcpip.h>
57 #include <netinet/tcp_seq.h>
58 #define TCPSTATES
59 #include <netinet/tcp_fsm.h>
60 #include <netinet/tcp_timer.h>
61 #include <netinet/tcp_var.h>
62 #include <netinet/udp.h>
63 #include <netinet/udp_var.h>
64
65 #include <arpa/inet.h>
66 #include <err.h>
67 #include <errno.h>
68 #include <libutil.h>
69 #include <netdb.h>
70 #include <stdint.h>
71 #include <stdio.h>
72 #include <stdlib.h>
73 #include <stdbool.h>
74 #include <string.h>
75 #include <unistd.h>
76 #include <libxo/xo.h>
77 #include "netstat.h"
78 #include "nl_defs.h"
79
80 #define max(a, b) (((a) > (b)) ? (a) : (b))
81
82 #ifdef INET
83 static void inetprint(const char *, struct in_addr *, int, const char *, int,
84 const int);
85 #endif
86 #ifdef INET6
87 static int udp_done, tcp_done, sdp_done;
88 #endif /* INET6 */
89
90 static int
pcblist_sysctl(int proto,const char * name,char ** bufp)91 pcblist_sysctl(int proto, const char *name, char **bufp)
92 {
93 const char *mibvar;
94 char *buf;
95 size_t len;
96
97 switch (proto) {
98 case IPPROTO_TCP:
99 mibvar = "net.inet.tcp.pcblist";
100 break;
101 case IPPROTO_UDP:
102 mibvar = "net.inet.udp.pcblist";
103 break;
104 default:
105 mibvar = "net.inet.raw.pcblist";
106 break;
107 }
108 if (strncmp(name, "sdp", 3) == 0)
109 mibvar = "net.inet.sdp.pcblist";
110 else if (strncmp(name, "divert", 6) == 0)
111 mibvar = "net.inet.divert.pcblist";
112 len = 0;
113 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
114 if (errno != ENOENT)
115 xo_warn("sysctl: %s", mibvar);
116 return (0);
117 }
118 if ((buf = malloc(len)) == NULL) {
119 xo_warnx("malloc %lu bytes", (u_long)len);
120 return (0);
121 }
122 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
123 xo_warn("sysctl: %s", mibvar);
124 free(buf);
125 return (0);
126 }
127 *bufp = buf;
128 return (1);
129 }
130
131 /*
132 * Copied directly from uipc_socket2.c. We leave out some fields that are in
133 * nested structures that aren't used to avoid extra work.
134 */
135 static void
sbtoxsockbuf(struct sockbuf * sb,struct xsockbuf * xsb)136 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
137 {
138 xsb->sb_cc = sb->sb_ccc;
139 xsb->sb_hiwat = sb->sb_hiwat;
140 xsb->sb_mbcnt = sb->sb_mbcnt;
141 xsb->sb_mbmax = sb->sb_mbmax;
142 xsb->sb_lowat = sb->sb_lowat;
143 xsb->sb_flags = sb->sb_flags;
144 xsb->sb_timeo = sb->sb_timeo;
145 }
146
147 int
sotoxsocket(struct socket * so,struct xsocket * xso)148 sotoxsocket(struct socket *so, struct xsocket *xso)
149 {
150 struct protosw proto;
151 struct domain domain;
152
153 bzero(xso, sizeof *xso);
154 xso->xso_len = sizeof *xso;
155 xso->xso_so = (uintptr_t)so;
156 xso->so_type = so->so_type;
157 xso->so_options = so->so_options;
158 xso->so_linger = so->so_linger;
159 xso->so_state = so->so_state;
160 xso->so_pcb = (uintptr_t)so->so_pcb;
161 if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
162 return (-1);
163 xso->xso_protocol = proto.pr_protocol;
164 if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
165 return (-1);
166 xso->xso_family = domain.dom_family;
167 xso->so_timeo = so->so_timeo;
168 xso->so_error = so->so_error;
169 if ((so->so_options & SO_ACCEPTCONN) != 0) {
170 xso->so_qlen = so->sol_qlen;
171 xso->so_incqlen = so->sol_incqlen;
172 xso->so_qlimit = so->sol_qlimit;
173 } else {
174 sbtoxsockbuf(&so->so_snd, &xso->so_snd);
175 sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
176 xso->so_oobmark = so->so_oobmark;
177 }
178 return (0);
179 }
180
181 /*
182 * Print a summary of connections related to an Internet
183 * protocol. For TCP, also give state of connection.
184 * Listening processes (aflag) are suppressed unless the
185 * -a (all) flag is specified.
186 */
187 void
protopr(u_long off,const char * name,int af1,int proto)188 protopr(u_long off, const char *name, int af1, int proto)
189 {
190 static int first = 1;
191 int istcp;
192 char *buf;
193 const char *vchar;
194 struct xtcpcb *tp;
195 struct xinpcb *inp;
196 struct xinpgen *xig, *oxig;
197 struct xsocket *so;
198 int fnamelen, cnamelen;
199
200 istcp = 0;
201 switch (proto) {
202 case IPPROTO_TCP:
203 #ifdef INET6
204 if (strncmp(name, "sdp", 3) != 0) {
205 if (tcp_done != 0)
206 return;
207 else
208 tcp_done = 1;
209 } else {
210 if (sdp_done != 0)
211 return;
212 else
213 sdp_done = 1;
214 }
215 #endif
216 istcp = 1;
217 break;
218 case IPPROTO_UDP:
219 #ifdef INET6
220 if (udp_done != 0)
221 return;
222 else
223 udp_done = 1;
224 #endif
225 break;
226 }
227
228 if (!pcblist_sysctl(proto, name, &buf))
229 return;
230
231 if (istcp && (cflag || Cflag)) {
232 fnamelen = strlen("Stack");
233 cnamelen = strlen("CC");
234 oxig = xig = (struct xinpgen *)buf;
235 for (xig = (struct xinpgen*)((char *)xig + xig->xig_len);
236 xig->xig_len > sizeof(struct xinpgen);
237 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
238 tp = (struct xtcpcb *)xig;
239 inp = &tp->xt_inp;
240 if (inp->inp_gencnt > oxig->xig_gen)
241 continue;
242 so = &inp->xi_socket;
243 if (so->xso_protocol != proto)
244 continue;
245 fnamelen = max(fnamelen, (int)strlen(tp->xt_stack));
246 cnamelen = max(cnamelen, (int)strlen(tp->xt_cc));
247 }
248 }
249
250 oxig = xig = (struct xinpgen *)buf;
251 for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
252 xig->xig_len > sizeof(struct xinpgen);
253 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
254 if (istcp) {
255 tp = (struct xtcpcb *)xig;
256 inp = &tp->xt_inp;
257 } else {
258 inp = (struct xinpcb *)xig;
259 }
260 so = &inp->xi_socket;
261
262 /* Ignore sockets for protocols other than the desired one. */
263 if (proto != 0 && so->xso_protocol != proto)
264 continue;
265
266 /* Ignore PCBs which were freed during copyout. */
267 if (inp->inp_gencnt > oxig->xig_gen)
268 continue;
269
270 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
271 #ifdef INET6
272 || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
273 #endif /* INET6 */
274 || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
275 #ifdef INET6
276 && (inp->inp_vflag & INP_IPV6) == 0
277 #endif /* INET6 */
278 ))
279 )
280 continue;
281 if (!aflag &&
282 (
283 (istcp && tp->t_state == TCPS_LISTEN)
284 || (af1 == AF_INET &&
285 inp->inp_laddr.s_addr == INADDR_ANY)
286 #ifdef INET6
287 || (af1 == AF_INET6 &&
288 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
289 #endif /* INET6 */
290 || (af1 == AF_UNSPEC &&
291 (((inp->inp_vflag & INP_IPV4) != 0 &&
292 inp->inp_laddr.s_addr == INADDR_ANY)
293 #ifdef INET6
294 || ((inp->inp_vflag & INP_IPV6) != 0 &&
295 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
296 #endif
297 ))
298 ))
299 continue;
300
301 if (first) {
302 if (!Lflag) {
303 xo_emit("Active Internet connections");
304 if (aflag)
305 xo_emit(" (including servers)");
306 } else
307 xo_emit(
308 "Current listen queue sizes (qlen/incqlen/maxqlen)");
309 xo_emit("\n");
310 if (Aflag)
311 xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
312 "Tcpcb");
313 if (Lflag)
314 xo_emit((Aflag && !Wflag) ?
315 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
316 ((!Wflag || af1 == AF_INET) ?
317 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
318 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
319 "Proto", "Listen", "Local Address");
320 else if (Tflag)
321 xo_emit((Aflag && !Wflag) ?
322 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
323 ((!Wflag || af1 == AF_INET) ?
324 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
325 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
326 "Proto", "Rexmit", "OOORcv", "0-win",
327 "Local Address", "Foreign Address");
328 else {
329 xo_emit((Aflag && !Wflag) ?
330 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
331 ((!Wflag || af1 == AF_INET) ?
332 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
333 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
334 "Proto", "Recv-Q", "Send-Q",
335 "Local Address", "Foreign Address");
336 if (!xflag && !Rflag)
337 xo_emit(" {T:/%-11.11s}", "(state)");
338 }
339 if (xflag) {
340 xo_emit("{T:/%-6.6s} {T:/%-6.6s} "
341 "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
342 "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
343 "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
344 "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
345 xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
346 "{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
347 "rexmt", "persist", "keep", "2msl",
348 "delack", "rcvtime");
349 } else if (Rflag) {
350 xo_emit(" {T:/%8.8s} {T:/%5.5s}",
351 "flowid", "ftype");
352 }
353 if (cflag) {
354 xo_emit(" {T:/%-*.*s}",
355 fnamelen, fnamelen, "Stack");
356 }
357 if (Cflag)
358 xo_emit(" {T:/%-*.*s} {T:/%10.10s}"
359 " {T:/%10.10s} {T:/%5.5s}"
360 " {T:/%3.3s}", cnamelen,
361 cnamelen, "CC",
362 "cwin",
363 "ssthresh",
364 "MSS",
365 "ECN");
366 if (Pflag)
367 xo_emit(" {T:/%s}", "Log ID");
368 xo_emit("\n");
369 first = 0;
370 }
371 if (Lflag && so->so_qlimit == 0)
372 continue;
373 xo_open_instance("socket");
374 if (Aflag)
375 xo_emit("{q:address/%*lx} ", 2 * (int)sizeof(void *),
376 (u_long)so->so_pcb);
377 #ifdef INET6
378 if ((inp->inp_vflag & INP_IPV6) != 0)
379 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
380 "46" : "6";
381 else
382 #endif
383 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
384 "4" : "";
385 if (istcp && (tp->t_flags & TF_TOE) != 0)
386 xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
387 else
388 xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
389 if (Lflag) {
390 char buf1[33];
391
392 snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
393 so->so_incqlen, so->so_qlimit);
394 xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
395 } else if (Tflag) {
396 if (istcp)
397 xo_emit("{:sent-retransmit-packets/%6u} "
398 "{:received-out-of-order-packets/%6u} "
399 "{:sent-zero-window/%6u} ",
400 tp->t_sndrexmitpack, tp->t_rcvoopack,
401 tp->t_sndzerowin);
402 else
403 xo_emit("{P:/%21s}", "");
404 } else {
405 xo_emit("{:receive-bytes-waiting/%6u} "
406 "{:send-bytes-waiting/%6u} ",
407 so->so_rcv.sb_cc, so->so_snd.sb_cc);
408 }
409 if (numeric_port) {
410 #ifdef INET
411 if (inp->inp_vflag & INP_IPV4) {
412 inetprint("local", &inp->inp_laddr,
413 (int)inp->inp_lport, name, 1, af1);
414 if (!Lflag)
415 inetprint("remote", &inp->inp_faddr,
416 (int)inp->inp_fport, name, 1, af1);
417 }
418 #endif
419 #if defined(INET) && defined(INET6)
420 else
421 #endif
422 #ifdef INET6
423 if (inp->inp_vflag & INP_IPV6) {
424 inet6print("local", &inp->in6p_laddr,
425 (int)inp->inp_lport, name, 1);
426 if (!Lflag)
427 inet6print("remote", &inp->in6p_faddr,
428 (int)inp->inp_fport, name, 1);
429 } /* else nothing printed now */
430 #endif /* INET6 */
431 } else if (inp->inp_flags & INP_ANONPORT) {
432 #ifdef INET
433 if (inp->inp_vflag & INP_IPV4) {
434 inetprint("local", &inp->inp_laddr,
435 (int)inp->inp_lport, name, 1, af1);
436 if (!Lflag)
437 inetprint("remote", &inp->inp_faddr,
438 (int)inp->inp_fport, name, 0, af1);
439 }
440 #endif
441 #if defined(INET) && defined(INET6)
442 else
443 #endif
444 #ifdef INET6
445 if (inp->inp_vflag & INP_IPV6) {
446 inet6print("local", &inp->in6p_laddr,
447 (int)inp->inp_lport, name, 1);
448 if (!Lflag)
449 inet6print("remote", &inp->in6p_faddr,
450 (int)inp->inp_fport, name, 0);
451 } /* else nothing printed now */
452 #endif /* INET6 */
453 } else {
454 #ifdef INET
455 if (inp->inp_vflag & INP_IPV4) {
456 inetprint("local", &inp->inp_laddr,
457 (int)inp->inp_lport, name, 0, af1);
458 if (!Lflag)
459 inetprint("remote", &inp->inp_faddr,
460 (int)inp->inp_fport, name,
461 inp->inp_lport != inp->inp_fport,
462 af1);
463 }
464 #endif
465 #if defined(INET) && defined(INET6)
466 else
467 #endif
468 #ifdef INET6
469 if (inp->inp_vflag & INP_IPV6) {
470 inet6print("local", &inp->in6p_laddr,
471 (int)inp->inp_lport, name, 0);
472 if (!Lflag)
473 inet6print("remote", &inp->in6p_faddr,
474 (int)inp->inp_fport, name,
475 inp->inp_lport != inp->inp_fport);
476 } /* else nothing printed now */
477 #endif /* INET6 */
478 }
479 if (xflag) {
480 xo_emit("{:receive-high-water/%6u} "
481 "{:send-high-water/%6u} "
482 "{:receive-low-water/%6u} {:send-low-water/%6u} "
483 "{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
484 "{:receive-mbuf-bytes-max/%6u} "
485 "{:send-mbuf-bytes-max/%6u}",
486 so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
487 so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
488 so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
489 so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
490 if (istcp)
491 xo_emit(" {:retransmit-timer/%4d.%02d} "
492 "{:persist-timer/%4d.%02d} "
493 "{:keepalive-timer/%4d.%02d} "
494 "{:msl2-timer/%4d.%02d} "
495 "{:delay-ack-timer/%4d.%02d} "
496 "{:inactivity-timer/%4d.%02d}",
497 tp->tt_rexmt / 1000,
498 (tp->tt_rexmt % 1000) / 10,
499 tp->tt_persist / 1000,
500 (tp->tt_persist % 1000) / 10,
501 tp->tt_keep / 1000,
502 (tp->tt_keep % 1000) / 10,
503 tp->tt_2msl / 1000,
504 (tp->tt_2msl % 1000) / 10,
505 tp->tt_delack / 1000,
506 (tp->tt_delack % 1000) / 10,
507 tp->t_rcvtime / 1000,
508 (tp->t_rcvtime % 1000) / 10);
509 }
510 if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
511 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
512 xo_emit("{:tcp-state/%-11d}", tp->t_state);
513 else {
514 xo_emit("{:tcp-state/%-11s}",
515 tcpstates[tp->t_state]);
516 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
517 /* Show T/TCP `hidden state' */
518 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
519 xo_emit("{:need-syn-or-fin/*}");
520 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
521 }
522 }
523 if (Rflag) {
524 /* XXX: is this right Alfred */
525 xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
526 inp->inp_flowid,
527 inp->inp_flowtype);
528 }
529 if (istcp) {
530 if (cflag)
531 xo_emit(" {:stack/%-*.*s}",
532
533 fnamelen, fnamelen, tp->xt_stack);
534 if (Cflag)
535 xo_emit(" {:cc/%-*.*s}"
536 " {:snd-cwnd/%10lu}"
537 " {:snd-ssthresh/%10lu}"
538 " {:t-maxseg/%5u} {:ecn/%3s}",
539 cnamelen, cnamelen, tp->xt_cc,
540 tp->t_snd_cwnd, tp->t_snd_ssthresh,
541 tp->t_maxseg,
542 (tp->t_state >= TCPS_ESTABLISHED ?
543 (tp->xt_ecn > 0 ?
544 (tp->xt_ecn == 1 ?
545 "ecn" : "ace")
546 : "off")
547 : "n/a"));
548 if (Pflag)
549 xo_emit(" {:log-id/%s}",
550 tp->xt_logid[0] == '\0' ?
551 "-" : tp->xt_logid);
552 }
553 xo_emit("\n");
554 xo_close_instance("socket");
555 }
556 if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
557 if (oxig->xig_count > xig->xig_count) {
558 xo_emit("Some {d:lost/%s} sockets may have been "
559 "deleted.\n", name);
560 } else if (oxig->xig_count < xig->xig_count) {
561 xo_emit("Some {d:created/%s} sockets may have been "
562 "created.\n", name);
563 } else {
564 xo_emit("Some {d:changed/%s} sockets may have been "
565 "created or deleted.\n", name);
566 }
567 }
568 free(buf);
569 }
570
571 /*
572 * Dump TCP statistics structure.
573 */
574 void
tcp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)575 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
576 {
577 struct tcpstat tcpstat;
578 uint64_t tcps_states[TCP_NSTATES];
579
580 #ifdef INET6
581 if (tcp_done != 0)
582 return;
583 else
584 tcp_done = 1;
585 #endif
586
587 if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
588 sizeof(tcpstat), kread_counters) != 0)
589 return;
590
591 if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
592 &tcps_states, sizeof(tcps_states), kread_counters) != 0)
593 return;
594
595 xo_open_container("tcp");
596 xo_emit("{T:/%s}:\n", name);
597
598 #define p(f, m) if (tcpstat.f || sflag <= 1) \
599 xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
600 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \
601 xo_emit(m, (uintmax_t )tcpstat.f)
602 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
603 xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1), \
604 (uintmax_t )tcpstat.f2, plural(tcpstat.f2))
605 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
606 xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1), \
607 (uintmax_t )tcpstat.f2)
608 #define p3(f, m) if (tcpstat.f || sflag <= 1) \
609 xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
610
611 p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
612 p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
613 "{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
614 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
615 "{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
616 "({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
617 "{N:retransmitted}\n");
618 p(tcps_sndrexmitbad, "\t\t"
619 "{:sent-unnecessary-retransmitted-packets/%ju} "
620 "{N:/data packet%s unnecessarily retransmitted}\n");
621 p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
622 "{N:/resend%s initiated by MTU discovery}\n");
623 p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
624 "{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
625 "{N:delayed})\n");
626 p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
627 "{N:/URG only packet%s}\n");
628 p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
629 "{N:/window probe packet%s}\n");
630 p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
631 "{N:/window update packet%s}\n");
632 p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
633 "{N:/control packet%s}\n");
634 p(tcps_rcvtotal, "\t{:received-packets/%ju} "
635 "{N:/packet%s received}\n");
636 p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
637 "{:received-ack-packets/%ju} {N:/ack%s} "
638 "{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
639 p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
640 "{N:/duplicate ack%s}\n");
641 p(tcps_tunneled_pkts, "\t\t{:received-udp-tunneled-pkts/%ju} "
642 "{N:/UDP tunneled pkt%s}\n");
643 p(tcps_tunneled_errs, "\t\t{:received-bad-udp-tunneled-pkts/%ju} "
644 "{N:/UDP tunneled pkt cnt with error%s}\n");
645 p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-unsent-data/%ju} "
646 "{N:/ack%s for unsent data}\n");
647 p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
648 "{:received-in-sequence-packets/%ju} {N:/packet%s} "
649 "({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
650 "{N:received in-sequence}\n");
651 p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
652 "{:received-completely-duplicate-packets/%ju} "
653 "{N:/completely duplicate packet%s} "
654 "({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
655 p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
656 "{N:/old duplicate packet%s}\n");
657 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
658 "{:received-some-duplicate-packets/%ju} "
659 "{N:/packet%s with some dup. data} "
660 "({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
661 p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
662 "{N:/out-of-order packet%s} "
663 "({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
664 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
665 "{:received-after-window-packets/%ju} {N:/packet%s} "
666 "({:received-after-window-bytes/%ju} {N:/byte%s}) "
667 "{N:of data after window}\n");
668 p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
669 "{N:/window probe%s}\n");
670 p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
671 "{N:/window update packet%s}\n");
672 p(tcps_dsack_count, "\t\t{:received-with-dsack-packets/%ju} "
673 "{N:/packet%s received with dsack}\n");
674 p(tcps_dsack_bytes, "\t\t{:received-with-dsack-bytes/%ju} "
675 "{N:/dsack byte%s received (no TLP involved)}\n");
676 p(tcps_dsack_tlp_bytes, "\t\t{:received-with-dsack-bytes-tlp/%ju} "
677 "{N:/dsack byte%s received (TLP responsible)}\n");
678 p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
679 "{N:/packet%s received after close}\n");
680 p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
681 "{N:/discarded for bad checksum%s}\n");
682 p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
683 "{N:/discarded for bad header offset field%s}\n");
684 p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
685 "{N:discarded because packet too short}\n");
686 p1a(tcps_rcvreassfull, "\t\t{:discard-reassembly-queue-full/%ju} "
687 "{N:discarded due to full reassembly queue}\n");
688 p(tcps_connattempt, "\t{:connection-requests/%ju} "
689 "{N:/connection request%s}\n");
690 p(tcps_accepts, "\t{:connections-accepts/%ju} "
691 "{N:/connection accept%s}\n");
692 p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
693 "{N:/bad connection attempt%s}\n");
694 p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
695 "{N:/listen queue overflow%s}\n");
696 p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
697 "{N:/ignored RSTs in the window%s}\n");
698 p(tcps_connects, "\t{:connections-established/%ju} "
699 "{N:/connection%s established (including accepts)}\n");
700 p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
701 "{N:/time%s used RTT from hostcache}\n");
702 p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
703 "{N:/time%s used RTT variance from hostcache}\n");
704 p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
705 "{N:/time%s used slow-start threshold from hostcache}\n");
706 p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
707 "{N:/connection%s closed (including} "
708 "{:connection-drops/%ju} {N:/drop%s})\n");
709 p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
710 "{N:/connection%s updated cached RTT on close}\n");
711 p(tcps_cachedrttvar, "\t\t"
712 "{:connections-updated-variance-on-close/%ju} "
713 "{N:/connection%s updated cached RTT variance on close}\n");
714 p(tcps_cachedssthresh, "\t\t"
715 "{:connections-updated-ssthresh-on-close/%ju} "
716 "{N:/connection%s updated cached ssthresh on close}\n");
717 p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
718 "{N:/embryonic connection%s dropped}\n");
719 p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
720 "{N:/segment%s updated rtt (of} "
721 "{:segment-update-attempts/%ju} {N:/attempt%s})\n");
722 p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
723 "{N:/retransmit timeout%s}\n");
724 p(tcps_timeoutdrop, "\t\t"
725 "{:connections-dropped-by-retransmit-timeout/%ju} "
726 "{N:/connection%s dropped by rexmit timeout}\n");
727 p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
728 "{N:/persist timeout%s}\n");
729 p(tcps_persistdrop, "\t\t"
730 "{:connections-dropped-by-persist-timeout/%ju} "
731 "{N:/connection%s dropped by persist timeout}\n");
732 p(tcps_finwait2_drops, "\t"
733 "{:connections-dropped-by-finwait2-timeout/%ju} "
734 "{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
735 p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
736 "{N:/keepalive timeout%s}\n");
737 p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
738 "{N:/keepalive probe%s sent}\n");
739 p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
740 "{N:/connection%s dropped by keepalive}\n");
741 p(tcps_progdrops, "\t{:connections-dropped-due-to-progress-time/%ju} "
742 "{N:/connection%s dropped due to exceeding progress time}\n");
743 p(tcps_predack, "\t{:ack-header-predictions/%ju} "
744 "{N:/correct ACK header prediction%s}\n");
745 p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
746 "{N:/correct data packet header prediction%s}\n");
747
748 xo_open_container("syncache");
749
750 p3(tcps_sc_added, "\t{:entries-added/%ju} "
751 "{N:/syncache entr%s added}\n");
752 p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
753 "{N:/retransmitted}\n");
754 p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
755 p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
756 p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
757 p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
758 "{N:/bucket overflow}\n");
759 p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
760 "{N:/cache overflow}\n");
761 p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
762 p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
763 p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
764 p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
765 p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
766 p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
767 p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
768 p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
769 "{N:/cookie%s received}\n");
770
771 xo_close_container("syncache");
772
773 xo_open_container("hostcache");
774
775 p3(tcps_hc_added, "\t{:entries-added/%ju} "
776 "{N:/hostcache entr%s added}\n");
777 p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
778 "{N:/bucket overflow}\n");
779
780 xo_close_container("hostcache");
781
782 xo_open_container("sack");
783
784 p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
785 "{N:/SACK recovery episode%s}\n");
786 p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
787 "{N:/segment rexmit%s in SACK recovery episodes}\n");
788 p(tcps_sack_rexmits_tso, "\t{:tso-chunk-retransmits/%ju} "
789 "{N:/tso chunk rexmit%s in SACK recovery episodes}\n");
790 p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
791 "{N:/byte rexmit%s in SACK recovery episodes}\n");
792 p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
793 "{N:/SACK option%s (SACK blocks) received}\n");
794 p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
795 "{N:/SACK option%s (SACK blocks) sent}\n");
796 p(tcps_sack_lostrexmt, "\t{:lost-retransmissions/%ju} "
797 "{N:/SACK retransmission%s lost}\n");
798 p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
799 "{N:/SACK scoreboard overflow}\n");
800
801 xo_close_container("sack");
802 xo_open_container("ecn");
803
804 p(tcps_ecn_rcvce, "\t{:received-ce-packets/%ju} "
805 "{N:/packet%s received with ECN CE bit set}\n");
806 p(tcps_ecn_rcvect0, "\t{:received-ect0-packets/%ju} "
807 "{N:/packet%s received with ECN ECT(0) bit set}\n");
808 p(tcps_ecn_rcvect1, "\t{:received-ect1-packets/%ju} "
809 "{N:/packet%s received with ECN ECT(1) bit set}\n");
810 p(tcps_ecn_sndect0, "\t{:sent-ect0-packets/%ju} "
811 "{N:/packet%s sent with ECN ECT(0) bit set}\n");
812 p(tcps_ecn_sndect1, "\t{:sent-ect1-packets/%ju} "
813 "{N:/packet%s sent with ECN ECT(1) bit set}\n");
814 p(tcps_ecn_shs, "\t{:handshakes/%ju} "
815 "{N:/successful ECN handshake%s}\n");
816 p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
817 "{N:/time%s ECN reduced the congestion window}\n");
818
819 p(tcps_ace_nect, "\t{:ace-nonect-syn/%ju} "
820 "{N:/ACE SYN packet%s with Non-ECT}\n");
821 p(tcps_ace_ect0, "\t{:ace-ect0-syn/%ju} "
822 "{N:/ACE SYN packet%s with ECT0}\n");
823 p(tcps_ace_ect1, "\t{:ace-ect1-syn/%ju} "
824 "{N:/ACE SYN packet%s with ECT1}\n");
825 p(tcps_ace_ce, "\t{:ace-ce-syn/%ju} "
826 "{N:/ACE SYN packet%s with CE}\n");
827
828 xo_close_container("ecn");
829 xo_open_container("tcp-signature");
830 p(tcps_sig_rcvgoodsig, "\t{:received-good-signature/%ju} "
831 "{N:/packet%s with matching signature received}\n");
832 p(tcps_sig_rcvbadsig, "\t{:received-bad-signature/%ju} "
833 "{N:/packet%s with bad signature received}\n");
834 p(tcps_sig_err_buildsig, "\t{:failed-make-signature/%ju} "
835 "{N:/time%s failed to make signature due to no SA}\n");
836 p(tcps_sig_err_sigopt, "\t{:no-signature-expected/%ju} "
837 "{N:/time%s unexpected signature received}\n");
838 p(tcps_sig_err_nosigopt, "\t{:no-signature-provided/%ju} "
839 "{N:/time%s no signature provided by segment}\n");
840
841 xo_close_container("tcp-signature");
842 xo_open_container("pmtud");
843
844 p(tcps_pmtud_blackhole_activated, "\t{:pmtud-activated/%ju} "
845 "{N:/Path MTU discovery black hole detection activation%s}\n");
846 p(tcps_pmtud_blackhole_activated_min_mss,
847 "\t{:pmtud-activated-min-mss/%ju} "
848 "{N:/Path MTU discovery black hole detection min MSS activation%s}\n");
849 p(tcps_pmtud_blackhole_failed, "\t{:pmtud-failed/%ju} "
850 "{N:/Path MTU discovery black hole detection failure%s}\n");
851
852 xo_close_container("pmtud");
853 xo_open_container("tw");
854
855 p(tcps_tw_responds, "\t{:tw_responds/%ju} "
856 "{N:/time%s connection in TIME-WAIT responded with ACK}\n");
857 p(tcps_tw_recycles, "\t{:tw_recycles/%ju} "
858 "{N:/time%s connection in TIME-WAIT was actively recycled}\n");
859 p(tcps_tw_resets, "\t{:tw_resets/%ju} "
860 "{N:/time%s connection in TIME-WAIT responded with RST}\n");
861
862 xo_close_container("tw");
863 #undef p
864 #undef p1a
865 #undef p2
866 #undef p2a
867 #undef p3
868
869 xo_open_container("TCP connection count by state");
870 xo_emit("{T:/TCP connection count by state}:\n");
871 for (int i = 0; i < TCP_NSTATES; i++) {
872 /*
873 * XXXGL: is there a way in libxo to use %s
874 * in the "content string" of a format
875 * string? I failed to do that, that's why
876 * a temporary buffer is used to construct
877 * format string for xo_emit().
878 */
879 char fmtbuf[80];
880
881 if (sflag > 1 && tcps_states[i] == 0)
882 continue;
883 snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
884 "{Np:/connection ,connections} in %s state\n",
885 tcpstates[i], tcpstates[i]);
886 xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
887 }
888 xo_close_container("TCP connection count by state");
889
890 xo_close_container("tcp");
891 }
892
893 /*
894 * Dump UDP statistics structure.
895 */
896 void
udp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)897 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
898 {
899 struct udpstat udpstat;
900 uint64_t delivered;
901
902 #ifdef INET6
903 if (udp_done != 0)
904 return;
905 else
906 udp_done = 1;
907 #endif
908
909 if (fetch_stats("net.inet.udp.stats", off, &udpstat,
910 sizeof(udpstat), kread_counters) != 0)
911 return;
912
913 xo_open_container("udp");
914 xo_emit("{T:/%s}:\n", name);
915
916 #define p(f, m) if (udpstat.f || sflag <= 1) \
917 xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
918 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
919 xo_emit("\t" m, (uintmax_t)udpstat.f)
920
921 p(udps_ipackets, "{:received-datagrams/%ju} "
922 "{N:/datagram%s received}\n");
923 p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
924 "{N:/with incomplete header}\n");
925 p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
926 "{N:/with bad data length field}\n");
927 p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
928 "{N:/with bad checksum}\n");
929 p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
930 "{N:/with no checksum}\n");
931 p1a(udps_noport, "{:dropped-no-socket/%ju} "
932 "{N:/dropped due to no socket}\n");
933 p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
934 "{N:/broadcast\\/multicast datagram%s undelivered}\n");
935 p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
936 "{N:/dropped due to full socket buffers}\n");
937 p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
938 "{N:/not for hashed pcb}\n");
939 delivered = udpstat.udps_ipackets -
940 udpstat.udps_hdrops -
941 udpstat.udps_badlen -
942 udpstat.udps_badsum -
943 udpstat.udps_noport -
944 udpstat.udps_noportbcast -
945 udpstat.udps_fullsock;
946 if (delivered || sflag <= 1)
947 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
948 (uint64_t)delivered);
949 p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
950 /* the next statistic is cumulative in udps_noportbcast */
951 p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
952 "{N:/time%s multicast source filter matched}\n");
953 #undef p
954 #undef p1a
955 xo_close_container("udp");
956 }
957
958 /*
959 * Dump CARP statistics structure.
960 */
961 void
carp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)962 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
963 {
964 struct carpstats carpstat;
965
966 if (fetch_stats("net.inet.carp.stats", off, &carpstat,
967 sizeof(carpstat), kread_counters) != 0)
968 return;
969
970 xo_open_container(name);
971 xo_emit("{T:/%s}:\n", name);
972
973 #define p(f, m) if (carpstat.f || sflag <= 1) \
974 xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
975 #define p2(f, m) if (carpstat.f || sflag <= 1) \
976 xo_emit(m, (uintmax_t)carpstat.f)
977
978 p(carps_ipackets, "\t{:received-inet-packets/%ju} "
979 "{N:/packet%s received (IPv4)}\n");
980 p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
981 "{N:/packet%s received (IPv6)}\n");
982 p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
983 "{N:/packet%s discarded for wrong TTL}\n");
984 p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
985 "{N:/packet%s shorter than header}\n");
986 p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
987 "{N:/discarded for bad checksum%s}\n");
988 p(carps_badver, "\t\t{:dropped-bad-version/%ju} "
989 "{N:/discarded packet%s with a bad version}\n");
990 p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
991 "{N:/discarded because packet too short}\n");
992 p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
993 "{N:/discarded for bad authentication}\n");
994 p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
995 "{N:/discarded for bad vhid}\n");
996 p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
997 "{N:/discarded because of a bad address list}\n");
998 p(carps_opackets, "\t{:sent-inet-packets/%ju} "
999 "{N:/packet%s sent (IPv4)}\n");
1000 p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
1001 "{N:/packet%s sent (IPv6)}\n");
1002 p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
1003 "{N:/send failed due to mbuf memory error}\n");
1004 #if notyet
1005 p(carps_ostates, "\t\t{:send-state-updates/%s} "
1006 "{N:/state update%s sent}\n");
1007 #endif
1008 #undef p
1009 #undef p2
1010 xo_close_container(name);
1011 }
1012
1013 /*
1014 * Dump IP statistics structure.
1015 */
1016 void
ip_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1017 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1018 {
1019 struct ipstat ipstat;
1020
1021 if (fetch_stats("net.inet.ip.stats", off, &ipstat,
1022 sizeof(ipstat), kread_counters) != 0)
1023 return;
1024
1025 xo_open_container(name);
1026 xo_emit("{T:/%s}:\n", name);
1027
1028 #define p(f, m) if (ipstat.f || sflag <= 1) \
1029 xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
1030 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
1031 xo_emit(m, (uintmax_t )ipstat.f)
1032
1033 p(ips_total, "\t{:received-packets/%ju} "
1034 "{N:/total packet%s received}\n");
1035 p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
1036 "{N:/bad header checksum%s}\n");
1037 p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
1038 "{N:/with size smaller than minimum}\n");
1039 p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
1040 "{N:/with data size < data length}\n");
1041 p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
1042 "{N:/with ip length > max ip packet size}\n");
1043 p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
1044 "{N:/with header length < data size}\n");
1045 p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
1046 "{N:/with data length < header length}\n");
1047 p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
1048 "{N:/with bad options}\n");
1049 p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
1050 "{N:/with incorrect version number}\n");
1051 p(ips_fragments, "\t{:received-fragments/%ju} "
1052 "{N:/fragment%s received}\n");
1053 p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
1054 "{N:/fragment%s dropped (dup or out of space)}\n");
1055 p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
1056 "{N:/fragment%s dropped after timeout}\n");
1057 p(ips_reassembled, "\t{:reassembled-packets/%ju} "
1058 "{N:/packet%s reassembled ok}\n");
1059 p(ips_delivered, "\t{:received-local-packets/%ju} "
1060 "{N:/packet%s for this host}\n");
1061 p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
1062 "{N:/packet%s for unknown\\/unsupported protocol}\n");
1063 p(ips_forward, "\t{:forwarded-packets/%ju} "
1064 "{N:/packet%s forwarded}");
1065 p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
1066 "{N:/packet%s fast forwarded})");
1067 if (ipstat.ips_forward || sflag <= 1)
1068 xo_emit("\n");
1069 p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
1070 "{N:/packet%s not forwardable}\n");
1071 p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
1072 "{N:/packet%s received for unknown multicast group}\n");
1073 p(ips_redirectsent, "\t{:redirects-sent/%ju} "
1074 "{N:/redirect%s sent}\n");
1075 p(ips_localout, "\t{:sent-packets/%ju} "
1076 "{N:/packet%s sent from this host}\n");
1077 p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
1078 "{N:/packet%s sent with fabricated ip header}\n");
1079 p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
1080 "{N:/output packet%s dropped due to no bufs, etc.}\n");
1081 p(ips_noroute, "\t{:discard-no-route/%ju} "
1082 "{N:/output packet%s discarded due to no route}\n");
1083 p(ips_fragmented, "\t{:sent-fragments/%ju} "
1084 "{N:/output datagram%s fragmented}\n");
1085 p(ips_ofragments, "\t{:fragments-created/%ju} "
1086 "{N:/fragment%s created}\n");
1087 p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
1088 "{N:/datagram%s that can't be fragmented}\n");
1089 p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
1090 "{N:/tunneling packet%s that can't find gif}\n");
1091 p(ips_badaddr, "\t{:discard-bad-address/%ju} "
1092 "{N:/datagram%s with bad address in header}\n");
1093 #undef p
1094 #undef p1a
1095 xo_close_container(name);
1096 }
1097
1098 /*
1099 * Dump ARP statistics structure.
1100 */
1101 void
arp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1102 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1103 {
1104 struct arpstat arpstat;
1105
1106 if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
1107 sizeof(arpstat), kread_counters) != 0)
1108 return;
1109
1110 xo_open_container(name);
1111 xo_emit("{T:/%s}:\n", name);
1112
1113 #define p(f, m) if (arpstat.f || sflag <= 1) \
1114 xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
1115 #define p2(f, m) if (arpstat.f || sflag <= 1) \
1116 xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
1117
1118 p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
1119 p(txerrors, "{:sent-failures/%ju} {N:/ARP request%s failed to sent}\n");
1120 p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
1121 p(rxrequests, "{:received-requests/%ju} "
1122 "{N:/ARP request%s received}\n");
1123 p2(rxreplies, "{:received-replies/%ju} "
1124 "{N:/ARP repl%s received}\n");
1125 p(received, "{:received-packets/%ju} "
1126 "{N:/ARP packet%s received}\n");
1127 p(dropped, "{:dropped-no-entry/%ju} "
1128 "{N:/total packet%s dropped due to no ARP entry}\n");
1129 p(timeouts, "{:entries-timeout/%ju} "
1130 "{N:/ARP entry%s timed out}\n");
1131 p(dupips, "{:dropped-duplicate-address/%ju} "
1132 "{N:/Duplicate IP%s seen}\n");
1133 #undef p
1134 #undef p2
1135 xo_close_container(name);
1136 }
1137
1138
1139
1140 static const char *icmpnames[ICMP_MAXTYPE + 1] = {
1141 "echo reply", /* RFC 792 */
1142 "#1",
1143 "#2",
1144 "destination unreachable", /* RFC 792 */
1145 "source quench", /* RFC 792 */
1146 "routing redirect", /* RFC 792 */
1147 "#6",
1148 "#7",
1149 "echo", /* RFC 792 */
1150 "router advertisement", /* RFC 1256 */
1151 "router solicitation", /* RFC 1256 */
1152 "time exceeded", /* RFC 792 */
1153 "parameter problem", /* RFC 792 */
1154 "time stamp", /* RFC 792 */
1155 "time stamp reply", /* RFC 792 */
1156 "information request", /* RFC 792 */
1157 "information request reply", /* RFC 792 */
1158 "address mask request", /* RFC 950 */
1159 "address mask reply", /* RFC 950 */
1160 "#19",
1161 "#20",
1162 "#21",
1163 "#22",
1164 "#23",
1165 "#24",
1166 "#25",
1167 "#26",
1168 "#27",
1169 "#28",
1170 "#29",
1171 "icmp traceroute", /* RFC 1393 */
1172 "datagram conversion error", /* RFC 1475 */
1173 "mobile host redirect",
1174 "IPv6 where-are-you",
1175 "IPv6 i-am-here",
1176 "mobile registration req",
1177 "mobile registration reply",
1178 "domain name request", /* RFC 1788 */
1179 "domain name reply", /* RFC 1788 */
1180 "icmp SKIP",
1181 "icmp photuris", /* RFC 2521 */
1182 };
1183
1184 /*
1185 * Dump ICMP statistics.
1186 */
1187 void
icmp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1188 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1189 {
1190 struct icmpstat icmpstat;
1191 size_t len;
1192 int i, first;
1193
1194 if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
1195 sizeof(icmpstat), kread_counters) != 0)
1196 return;
1197
1198 xo_open_container(name);
1199 xo_emit("{T:/%s}:\n", name);
1200
1201 #define p(f, m) if (icmpstat.f || sflag <= 1) \
1202 xo_emit(m, icmpstat.f, plural(icmpstat.f))
1203 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
1204 xo_emit(m, icmpstat.f)
1205 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
1206 xo_emit(m, icmpstat.f, plurales(icmpstat.f))
1207
1208 p(icps_error, "\t{:icmp-calls/%lu} "
1209 "{N:/call%s to icmp_error}\n");
1210 p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
1211 "{N:/error%s not generated in response to an icmp message}\n");
1212
1213 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1214 if (icmpstat.icps_outhist[i] != 0) {
1215 if (first) {
1216 xo_open_list("output-histogram");
1217 xo_emit("\tOutput histogram:\n");
1218 first = 0;
1219 }
1220 xo_open_instance("output-histogram");
1221 if (icmpnames[i] != NULL)
1222 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1223 icmpnames[i], icmpstat.icps_outhist[i]);
1224 else
1225 xo_emit("\t\tunknown ICMP #{k:name/%d}: "
1226 "{:count/%lu}\n",
1227 i, icmpstat.icps_outhist[i]);
1228 xo_close_instance("output-histogram");
1229 }
1230 }
1231 if (!first)
1232 xo_close_list("output-histogram");
1233
1234 p(icps_badcode, "\t{:dropped-bad-code/%lu} "
1235 "{N:/message%s with bad code fields}\n");
1236 p(icps_tooshort, "\t{:dropped-too-short/%lu} "
1237 "{N:/message%s less than the minimum length}\n");
1238 p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
1239 "{N:/message%s with bad checksum}\n");
1240 p(icps_badlen, "\t{:dropped-bad-length/%lu} "
1241 "{N:/message%s with bad length}\n");
1242 p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
1243 "{N:/multicast echo requests ignored}\n");
1244 p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
1245 "{N:/multicast timestamp requests ignored}\n");
1246
1247 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1248 if (icmpstat.icps_inhist[i] != 0) {
1249 if (first) {
1250 xo_open_list("input-histogram");
1251 xo_emit("\tInput histogram:\n");
1252 first = 0;
1253 }
1254 xo_open_instance("input-histogram");
1255 if (icmpnames[i] != NULL)
1256 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1257 icmpnames[i],
1258 icmpstat.icps_inhist[i]);
1259 else
1260 xo_emit(
1261 "\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
1262 i, icmpstat.icps_inhist[i]);
1263 xo_close_instance("input-histogram");
1264 }
1265 }
1266 if (!first)
1267 xo_close_list("input-histogram");
1268
1269 p(icps_reflect, "\t{:sent-packets/%lu} "
1270 "{N:/message response%s generated}\n");
1271 p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
1272 "{N:/invalid return address%s}\n");
1273 p(icps_noroute, "\t{:discard-no-route/%lu} "
1274 "{N:/no return route%s}\n");
1275 #undef p
1276 #undef p1a
1277 #undef p2
1278 if (live) {
1279 len = sizeof i;
1280 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1281 0)
1282 return;
1283 xo_emit("\tICMP address mask responses are "
1284 "{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
1285 }
1286
1287 xo_close_container(name);
1288 }
1289
1290 /*
1291 * Dump IGMP statistics structure.
1292 */
1293 void
igmp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1294 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1295 {
1296 struct igmpstat igmpstat;
1297 int error, zflag0;
1298
1299 if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1300 sizeof(igmpstat), kread) != 0)
1301 return;
1302 /*
1303 * Reread net.inet.igmp.stats when zflag == 1.
1304 * This is because this MIB contains version number and
1305 * length of the structure which are not set when clearing
1306 * the counters.
1307 */
1308 zflag0 = zflag;
1309 if (zflag) {
1310 zflag = 0;
1311 error = fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1312 sizeof(igmpstat), kread);
1313 zflag = zflag0;
1314 if (error)
1315 return;
1316 }
1317
1318 if (igmpstat.igps_version != IGPS_VERSION_3) {
1319 xo_warnx("%s: version mismatch (%d != %d)", __func__,
1320 igmpstat.igps_version, IGPS_VERSION_3);
1321 return;
1322 }
1323 if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1324 xo_warnx("%s: size mismatch (%d != %d)", __func__,
1325 igmpstat.igps_len, IGPS_VERSION3_LEN);
1326 return;
1327 }
1328
1329 xo_open_container(name);
1330 xo_emit("{T:/%s}:\n", name);
1331
1332 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1333 xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1334 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1335 xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1336
1337 p64(igps_rcv_total, "\t{:received-messages/%ju} "
1338 "{N:/message%s received}\n");
1339 p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1340 "{N:/message%s received with too few bytes}\n");
1341 p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
1342 "{N:/message%s received with wrong TTL}\n");
1343 p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1344 "{N:/message%s received with bad checksum}\n");
1345 py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
1346 "{N:/V1\\/V2 membership quer%s received}\n");
1347 py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
1348 "{N:/V3 membership quer%s received}\n");
1349 py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
1350 "{N:/membership quer%s received with invalid field(s)}\n");
1351 py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
1352 "{N:/general quer%s received}\n");
1353 py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
1354 "{N:/group quer%s received}\n");
1355 py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
1356 "{N:/group-source quer%s received}\n");
1357 py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
1358 "{N:/group-source quer%s dropped}\n");
1359 p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
1360 "{N:/membership report%s received}\n");
1361 p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
1362 "{N:/membership report%s received with invalid field(s)}\n");
1363 p64(igps_rcv_ourreports, "\t"
1364 "{:received-membership-reports-matching/%ju} "
1365 "{N:/membership report%s received for groups to which we belong}"
1366 "\n");
1367 p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
1368 "{N:/V3 report%s received without Router Alert}\n");
1369 p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
1370 "{N:/membership report%s sent}\n");
1371 #undef p64
1372 #undef py64
1373 xo_close_container(name);
1374 }
1375
1376 /*
1377 * Dump PIM statistics structure.
1378 */
1379 void
pim_stats(u_long off __unused,const char * name,int af1 __unused,int proto __unused)1380 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1381 int proto __unused)
1382 {
1383 struct pimstat pimstat;
1384
1385 if (fetch_stats("net.inet.pim.stats", off, &pimstat,
1386 sizeof(pimstat), kread_counters) != 0)
1387 return;
1388
1389 xo_open_container(name);
1390 xo_emit("{T:/%s}:\n", name);
1391
1392 #define p(f, m) if (pimstat.f || sflag <= 1) \
1393 xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1394 #define py(f, m) if (pimstat.f || sflag <= 1) \
1395 xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1396
1397 p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
1398 "{N:/message%s received}\n");
1399 p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
1400 "{N:/byte%s received}\n");
1401 p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1402 "{N:/message%s received with too few bytes}\n");
1403 p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1404 "{N:/message%s received with bad checksum}\n");
1405 p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1406 "{N:/message%s received with bad version}\n");
1407 p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
1408 "{N:/data register message%s received}\n");
1409 p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
1410 "{N:/data register byte%s received}\n");
1411 p(pims_rcv_registers_wrongiif, "\t"
1412 "{:received-data-register-wrong-interface/%ju} "
1413 "{N:/data register message%s received on wrong iif}\n");
1414 p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1415 "{N:/bad register%s received}\n");
1416 p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
1417 "{N:/data register message%s sent}\n");
1418 p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
1419 "{N:/data register byte%s sent}\n");
1420 #undef p
1421 #undef py
1422 xo_close_container(name);
1423 }
1424
1425 /*
1426 * Dump divert(4) statistics structure.
1427 */
1428 void
divert_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1429 divert_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1430 {
1431 struct divstat divstat;
1432
1433 if (fetch_stats("net.inet.divert.stats", off, &divstat,
1434 sizeof(divstat), kread_counters) != 0)
1435 return;
1436
1437 xo_open_container(name);
1438 xo_emit("{T:/%s}:\n", name);
1439
1440 #define p(f, m) if (divstat.f || sflag <= 1) \
1441 xo_emit(m, (uintmax_t)divstat.f, plural(divstat.f))
1442
1443 p(div_diverted, "\t{:diverted-packets/%ju} "
1444 "{N:/packet%s successfully diverted to userland}\n");
1445 p(div_noport, "\t{:noport-fails/%ju} "
1446 "{N:/packet%s failed to divert due to no socket bound at port}\n");
1447 p(div_outbound, "\t{:outbound-packets/%ju} "
1448 "{N:/packet%s successfully re-injected as outbound}\n");
1449 p(div_inbound, "\t{:inbound-packets/%ju} "
1450 "{N:/packet%s successfully re-injected as inbound}\n");
1451 #undef p
1452 xo_close_container(name);
1453 }
1454
1455 #ifdef INET
1456 /*
1457 * Pretty print an Internet address (net address + port).
1458 */
1459 static void
inetprint(const char * container,struct in_addr * in,int port,const char * proto,int num_port,const int af1)1460 inetprint(const char *container, struct in_addr *in, int port,
1461 const char *proto, int num_port, const int af1)
1462 {
1463 struct servent *sp = 0;
1464 char line[80], *cp;
1465 int width;
1466 size_t alen, plen;
1467
1468 if (container)
1469 xo_open_container(container);
1470
1471 if (Wflag)
1472 snprintf(line, sizeof(line), "%s.", inetname(in));
1473 else
1474 snprintf(line, sizeof(line), "%.*s.",
1475 (Aflag && !num_port) ? 12 : 16, inetname(in));
1476 alen = strlen(line);
1477 cp = line + alen;
1478 if (!num_port && port)
1479 sp = getservbyport((int)port, proto);
1480 if (sp || port == 0)
1481 snprintf(cp, sizeof(line) - alen,
1482 "%.15s ", sp ? sp->s_name : "*");
1483 else
1484 snprintf(cp, sizeof(line) - alen,
1485 "%d ", ntohs((u_short)port));
1486 width = (Aflag && !Wflag) ? 18 :
1487 ((!Wflag || af1 == AF_INET) ? 22 : 45);
1488 if (Wflag)
1489 xo_emit("{d:target/%-*s} ", width, line);
1490 else
1491 xo_emit("{d:target/%-*.*s} ", width, width, line);
1492
1493 plen = strlen(cp) - 1;
1494 alen--;
1495 xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1496 plen, cp);
1497
1498 if (container)
1499 xo_close_container(container);
1500 }
1501
1502 /*
1503 * Construct an Internet address representation.
1504 * If numeric_addr has been supplied, give
1505 * numeric value, otherwise try for symbolic name.
1506 */
1507 char *
inetname(struct in_addr * inp)1508 inetname(struct in_addr *inp)
1509 {
1510 char *cp;
1511 static char line[MAXHOSTNAMELEN];
1512 struct hostent *hp;
1513
1514 cp = 0;
1515 if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1516 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1517 if (hp) {
1518 cp = hp->h_name;
1519 trimdomain(cp, strlen(cp));
1520 }
1521 }
1522 if (inp->s_addr == INADDR_ANY)
1523 strcpy(line, "*");
1524 else if (cp) {
1525 strlcpy(line, cp, sizeof(line));
1526 } else {
1527 inp->s_addr = ntohl(inp->s_addr);
1528 #define C(x) ((u_int)((x) & 0xff))
1529 snprintf(line, sizeof(line), "%u.%u.%u.%u",
1530 C(inp->s_addr >> 24), C(inp->s_addr >> 16),
1531 C(inp->s_addr >> 8), C(inp->s_addr));
1532 }
1533 return (line);
1534 }
1535 #endif
1536