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 #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 #include <sys/param.h>
38 #include <sys/queue.h>
39 #include <sys/domain.h>
40 #include <sys/protosw.h>
41 #include <sys/socket.h>
42 #define _WANT_SOCKET
43 #include <sys/socketvar.h>
44 #include <sys/sysctl.h>
45
46 #include <net/route.h>
47 #include <net/if_arp.h>
48 #include <netinet/in.h>
49 #include <netinet/in_systm.h>
50 #include <netinet/ip.h>
51 #include <netinet/ip_carp.h>
52 #ifdef INET6
53 #include <netinet/ip6.h>
54 #endif /* INET6 */
55 #include <netinet/in_pcb.h>
56 #include <netinet/ip_icmp.h>
57 #include <netinet/icmp_var.h>
58 #include <netinet/igmp_var.h>
59 #include <netinet/ip_divert.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/udp.h>
70 #include <netinet/udp_var.h>
71
72 #include <arpa/inet.h>
73 #include <err.h>
74 #include <errno.h>
75 #include <libutil.h>
76 #include <netdb.h>
77 #include <stdint.h>
78 #include <stdio.h>
79 #include <stdlib.h>
80 #include <stdbool.h>
81 #include <string.h>
82 #include <unistd.h>
83 #include <libxo/xo.h>
84 #include "netstat.h"
85 #include "nl_defs.h"
86
87 #define max(a, b) (((a) > (b)) ? (a) : (b))
88
89 #ifdef INET
90 static void inetprint(const char *, struct in_addr *, int, const char *, int,
91 const int);
92 #endif
93 #ifdef INET6
94 static int udp_done, tcp_done, sdp_done;
95 #endif /* INET6 */
96
97 static int
pcblist_sysctl(int proto,const char * name,char ** bufp)98 pcblist_sysctl(int proto, const char *name, char **bufp)
99 {
100 const char *mibvar;
101 char *buf;
102 size_t len;
103
104 switch (proto) {
105 case IPPROTO_TCP:
106 mibvar = "net.inet.tcp.pcblist";
107 break;
108 case IPPROTO_UDP:
109 mibvar = "net.inet.udp.pcblist";
110 break;
111 default:
112 mibvar = "net.inet.raw.pcblist";
113 break;
114 }
115 if (strncmp(name, "sdp", 3) == 0)
116 mibvar = "net.inet.sdp.pcblist";
117 else if (strncmp(name, "divert", 6) == 0)
118 mibvar = "net.inet.divert.pcblist";
119 len = 0;
120 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
121 if (errno != ENOENT)
122 xo_warn("sysctl: %s", mibvar);
123 return (0);
124 }
125 if ((buf = malloc(len)) == NULL) {
126 xo_warnx("malloc %lu bytes", (u_long)len);
127 return (0);
128 }
129 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
130 xo_warn("sysctl: %s", mibvar);
131 free(buf);
132 return (0);
133 }
134 *bufp = buf;
135 return (1);
136 }
137
138 /*
139 * Copied directly from uipc_socket2.c. We leave out some fields that are in
140 * nested structures that aren't used to avoid extra work.
141 */
142 static void
sbtoxsockbuf(struct sockbuf * sb,struct xsockbuf * xsb)143 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
144 {
145 xsb->sb_cc = sb->sb_ccc;
146 xsb->sb_hiwat = sb->sb_hiwat;
147 xsb->sb_mbcnt = sb->sb_mbcnt;
148 xsb->sb_mbmax = sb->sb_mbmax;
149 xsb->sb_lowat = sb->sb_lowat;
150 xsb->sb_flags = sb->sb_flags;
151 xsb->sb_timeo = sb->sb_timeo;
152 }
153
154 int
sotoxsocket(struct socket * so,struct xsocket * xso)155 sotoxsocket(struct socket *so, struct xsocket *xso)
156 {
157 struct protosw proto;
158 struct domain domain;
159
160 bzero(xso, sizeof *xso);
161 xso->xso_len = sizeof *xso;
162 xso->xso_so = (uintptr_t)so;
163 xso->so_type = so->so_type;
164 xso->so_options = so->so_options;
165 xso->so_linger = so->so_linger;
166 xso->so_state = so->so_state;
167 xso->so_pcb = (uintptr_t)so->so_pcb;
168 if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
169 return (-1);
170 xso->xso_protocol = proto.pr_protocol;
171 if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
172 return (-1);
173 xso->xso_family = domain.dom_family;
174 xso->so_timeo = so->so_timeo;
175 xso->so_error = so->so_error;
176 if ((so->so_options & SO_ACCEPTCONN) != 0) {
177 xso->so_qlen = so->sol_qlen;
178 xso->so_incqlen = so->sol_incqlen;
179 xso->so_qlimit = so->sol_qlimit;
180 } else {
181 sbtoxsockbuf(&so->so_snd, &xso->so_snd);
182 sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
183 xso->so_oobmark = so->so_oobmark;
184 }
185 return (0);
186 }
187
188 /*
189 * Print a summary of connections related to an Internet
190 * protocol. For TCP, also give state of connection.
191 * Listening processes (aflag) are suppressed unless the
192 * -a (all) flag is specified.
193 */
194 void
protopr(u_long off,const char * name,int af1,int proto)195 protopr(u_long off, const char *name, int af1, int proto)
196 {
197 static int first = 1;
198 int istcp;
199 char *buf;
200 const char *vchar;
201 struct xtcpcb *tp;
202 struct xinpcb *inp;
203 struct xinpgen *xig, *oxig;
204 struct xsocket *so;
205 int fnamelen, cnamelen;
206
207 istcp = 0;
208 switch (proto) {
209 case IPPROTO_TCP:
210 #ifdef INET6
211 if (strncmp(name, "sdp", 3) != 0) {
212 if (tcp_done != 0)
213 return;
214 else
215 tcp_done = 1;
216 } else {
217 if (sdp_done != 0)
218 return;
219 else
220 sdp_done = 1;
221 }
222 #endif
223 istcp = 1;
224 break;
225 case IPPROTO_UDP:
226 #ifdef INET6
227 if (udp_done != 0)
228 return;
229 else
230 udp_done = 1;
231 #endif
232 break;
233 }
234
235 if (!pcblist_sysctl(proto, name, &buf))
236 return;
237
238 if (istcp && (cflag || Cflag)) {
239 fnamelen = strlen("Stack");
240 cnamelen = strlen("CC");
241 oxig = xig = (struct xinpgen *)buf;
242 for (xig = (struct xinpgen*)((char *)xig + xig->xig_len);
243 xig->xig_len > sizeof(struct xinpgen);
244 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
245 tp = (struct xtcpcb *)xig;
246 inp = &tp->xt_inp;
247 if (inp->inp_gencnt > oxig->xig_gen)
248 continue;
249 so = &inp->xi_socket;
250 if (so->xso_protocol != proto)
251 continue;
252 fnamelen = max(fnamelen, (int)strlen(tp->xt_stack));
253 cnamelen = max(cnamelen, (int)strlen(tp->xt_cc));
254 }
255 }
256
257 oxig = xig = (struct xinpgen *)buf;
258 for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
259 xig->xig_len > sizeof(struct xinpgen);
260 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
261 if (istcp) {
262 tp = (struct xtcpcb *)xig;
263 inp = &tp->xt_inp;
264 } else {
265 inp = (struct xinpcb *)xig;
266 }
267 so = &inp->xi_socket;
268
269 /* Ignore sockets for protocols other than the desired one. */
270 if (proto != 0 && so->xso_protocol != proto)
271 continue;
272
273 /* Ignore PCBs which were freed during copyout. */
274 if (inp->inp_gencnt > oxig->xig_gen)
275 continue;
276
277 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
278 #ifdef INET6
279 || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
280 #endif /* INET6 */
281 || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
282 #ifdef INET6
283 && (inp->inp_vflag & INP_IPV6) == 0
284 #endif /* INET6 */
285 ))
286 )
287 continue;
288 if (!aflag &&
289 (
290 (istcp && tp->t_state == TCPS_LISTEN)
291 || (af1 == AF_INET &&
292 inp->inp_laddr.s_addr == INADDR_ANY)
293 #ifdef INET6
294 || (af1 == AF_INET6 &&
295 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
296 #endif /* INET6 */
297 || (af1 == AF_UNSPEC &&
298 (((inp->inp_vflag & INP_IPV4) != 0 &&
299 inp->inp_laddr.s_addr == INADDR_ANY)
300 #ifdef INET6
301 || ((inp->inp_vflag & INP_IPV6) != 0 &&
302 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
303 #endif
304 ))
305 ))
306 continue;
307
308 if (first) {
309 if (!Lflag) {
310 xo_emit("Active Internet connections");
311 if (aflag)
312 xo_emit(" (including servers)");
313 } else
314 xo_emit(
315 "Current listen queue sizes (qlen/incqlen/maxqlen)");
316 xo_emit("\n");
317 if (Aflag)
318 xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
319 "Tcpcb");
320 if (Lflag)
321 xo_emit((Aflag && !Wflag) ?
322 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
323 ((!Wflag || af1 == AF_INET) ?
324 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
325 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
326 "Proto", "Listen", "Local Address");
327 else if (Tflag)
328 xo_emit((Aflag && !Wflag) ?
329 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
330 ((!Wflag || af1 == AF_INET) ?
331 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
332 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
333 "Proto", "Rexmit", "OOORcv", "0-win",
334 "Local Address", "Foreign Address");
335 else {
336 xo_emit((Aflag && !Wflag) ?
337 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
338 ((!Wflag || af1 == AF_INET) ?
339 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
340 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
341 "Proto", "Recv-Q", "Send-Q",
342 "Local Address", "Foreign Address");
343 if (!xflag && !Rflag)
344 xo_emit(" {T:/%-11.11s}", "(state)");
345 }
346 if (xflag) {
347 xo_emit("{T:/%-6.6s} {T:/%-6.6s} "
348 "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
349 "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
350 "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
351 "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
352 xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
353 "{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
354 "rexmt", "persist", "keep", "2msl",
355 "delack", "rcvtime");
356 } else if (Rflag) {
357 xo_emit(" {T:/%8.8s} {T:/%5.5s}",
358 "flowid", "ftype");
359 }
360 if (cflag) {
361 xo_emit(" {T:/%-*.*s}",
362 fnamelen, fnamelen, "Stack");
363 }
364 if (Cflag)
365 xo_emit(" {T:/%-*.*s} {T:/%10.10s}"
366 " {T:/%10.10s} {T:/%5.5s}"
367 " {T:/%3.3s}", cnamelen,
368 cnamelen, "CC",
369 "cwin",
370 "ssthresh",
371 "MSS",
372 "ECN");
373 if (Pflag)
374 xo_emit(" {T:/%s}", "Log ID");
375 xo_emit("\n");
376 first = 0;
377 }
378 if (Lflag && so->so_qlimit == 0)
379 continue;
380 xo_open_instance("socket");
381 if (Aflag)
382 xo_emit("{q:address/%*lx} ", 2 * (int)sizeof(void *),
383 (u_long)so->so_pcb);
384 #ifdef INET6
385 if ((inp->inp_vflag & INP_IPV6) != 0)
386 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
387 "46" : "6";
388 else
389 #endif
390 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
391 "4" : "";
392 if (istcp && (tp->t_flags & TF_TOE) != 0)
393 xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
394 else
395 xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
396 if (Lflag) {
397 char buf1[33];
398
399 snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
400 so->so_incqlen, so->so_qlimit);
401 xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
402 } else if (Tflag) {
403 if (istcp)
404 xo_emit("{:sent-retransmit-packets/%6u} "
405 "{:received-out-of-order-packets/%6u} "
406 "{:sent-zero-window/%6u} ",
407 tp->t_sndrexmitpack, tp->t_rcvoopack,
408 tp->t_sndzerowin);
409 else
410 xo_emit("{P:/%21s}", "");
411 } else {
412 xo_emit("{:receive-bytes-waiting/%6u} "
413 "{:send-bytes-waiting/%6u} ",
414 so->so_rcv.sb_cc, so->so_snd.sb_cc);
415 }
416 if (numeric_port) {
417 #ifdef INET
418 if (inp->inp_vflag & INP_IPV4) {
419 inetprint("local", &inp->inp_laddr,
420 (int)inp->inp_lport, name, 1, af1);
421 if (!Lflag)
422 inetprint("remote", &inp->inp_faddr,
423 (int)inp->inp_fport, name, 1, af1);
424 }
425 #endif
426 #if defined(INET) && defined(INET6)
427 else
428 #endif
429 #ifdef INET6
430 if (inp->inp_vflag & INP_IPV6) {
431 inet6print("local", &inp->in6p_laddr,
432 (int)inp->inp_lport, name, 1);
433 if (!Lflag)
434 inet6print("remote", &inp->in6p_faddr,
435 (int)inp->inp_fport, name, 1);
436 } /* else nothing printed now */
437 #endif /* INET6 */
438 } else if (inp->inp_flags & INP_ANONPORT) {
439 #ifdef INET
440 if (inp->inp_vflag & INP_IPV4) {
441 inetprint("local", &inp->inp_laddr,
442 (int)inp->inp_lport, name, 1, af1);
443 if (!Lflag)
444 inetprint("remote", &inp->inp_faddr,
445 (int)inp->inp_fport, name, 0, af1);
446 }
447 #endif
448 #if defined(INET) && defined(INET6)
449 else
450 #endif
451 #ifdef INET6
452 if (inp->inp_vflag & INP_IPV6) {
453 inet6print("local", &inp->in6p_laddr,
454 (int)inp->inp_lport, name, 1);
455 if (!Lflag)
456 inet6print("remote", &inp->in6p_faddr,
457 (int)inp->inp_fport, name, 0);
458 } /* else nothing printed now */
459 #endif /* INET6 */
460 } else {
461 #ifdef INET
462 if (inp->inp_vflag & INP_IPV4) {
463 inetprint("local", &inp->inp_laddr,
464 (int)inp->inp_lport, name, 0, af1);
465 if (!Lflag)
466 inetprint("remote", &inp->inp_faddr,
467 (int)inp->inp_fport, name,
468 inp->inp_lport != inp->inp_fport,
469 af1);
470 }
471 #endif
472 #if defined(INET) && defined(INET6)
473 else
474 #endif
475 #ifdef INET6
476 if (inp->inp_vflag & INP_IPV6) {
477 inet6print("local", &inp->in6p_laddr,
478 (int)inp->inp_lport, name, 0);
479 if (!Lflag)
480 inet6print("remote", &inp->in6p_faddr,
481 (int)inp->inp_fport, name,
482 inp->inp_lport != inp->inp_fport);
483 } /* else nothing printed now */
484 #endif /* INET6 */
485 }
486 if (xflag) {
487 xo_emit("{:receive-high-water/%6u} "
488 "{:send-high-water/%6u} "
489 "{:receive-low-water/%6u} {:send-low-water/%6u} "
490 "{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
491 "{:receive-mbuf-bytes-max/%6u} "
492 "{:send-mbuf-bytes-max/%6u}",
493 so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
494 so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
495 so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
496 so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
497 if (istcp)
498 xo_emit(" {:retransmit-timer/%4d.%02d} "
499 "{:persist-timer/%4d.%02d} "
500 "{:keepalive-timer/%4d.%02d} "
501 "{:msl2-timer/%4d.%02d} "
502 "{:delay-ack-timer/%4d.%02d} "
503 "{:inactivity-timer/%4d.%02d}",
504 tp->tt_rexmt / 1000,
505 (tp->tt_rexmt % 1000) / 10,
506 tp->tt_persist / 1000,
507 (tp->tt_persist % 1000) / 10,
508 tp->tt_keep / 1000,
509 (tp->tt_keep % 1000) / 10,
510 tp->tt_2msl / 1000,
511 (tp->tt_2msl % 1000) / 10,
512 tp->tt_delack / 1000,
513 (tp->tt_delack % 1000) / 10,
514 tp->t_rcvtime / 1000,
515 (tp->t_rcvtime % 1000) / 10);
516 }
517 if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
518 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
519 xo_emit("{:tcp-state/%-11d}", tp->t_state);
520 else {
521 xo_emit("{:tcp-state/%-11s}",
522 tcpstates[tp->t_state]);
523 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
524 /* Show T/TCP `hidden state' */
525 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
526 xo_emit("{:need-syn-or-fin/*}");
527 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
528 }
529 }
530 if (Rflag) {
531 /* XXX: is this right Alfred */
532 xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
533 inp->inp_flowid,
534 inp->inp_flowtype);
535 }
536 if (istcp) {
537 if (cflag)
538 xo_emit(" {:stack/%-*.*s}",
539
540 fnamelen, fnamelen, tp->xt_stack);
541 if (Cflag)
542 xo_emit(" {:cc/%-*.*s}"
543 " {:snd-cwnd/%10lu}"
544 " {:snd-ssthresh/%10lu}"
545 " {:t-maxseg/%5u} {:ecn/%3s}",
546 cnamelen, cnamelen, tp->xt_cc,
547 tp->t_snd_cwnd, tp->t_snd_ssthresh,
548 tp->t_maxseg,
549 (tp->t_state >= TCPS_ESTABLISHED ?
550 (tp->xt_ecn > 0 ?
551 (tp->xt_ecn == 1 ?
552 "ecn" : "ace")
553 : "off")
554 : "n/a"));
555 if (Pflag)
556 xo_emit(" {:log-id/%s}",
557 tp->xt_logid[0] == '\0' ?
558 "-" : tp->xt_logid);
559 }
560 xo_emit("\n");
561 xo_close_instance("socket");
562 }
563 if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
564 if (oxig->xig_count > xig->xig_count) {
565 xo_emit("Some {d:lost/%s} sockets may have been "
566 "deleted.\n", name);
567 } else if (oxig->xig_count < xig->xig_count) {
568 xo_emit("Some {d:created/%s} sockets may have been "
569 "created.\n", name);
570 } else {
571 xo_emit("Some {d:changed/%s} sockets may have been "
572 "created or deleted.\n", name);
573 }
574 }
575 free(buf);
576 }
577
578 /*
579 * Dump TCP statistics structure.
580 */
581 void
tcp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)582 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
583 {
584 struct tcpstat tcpstat;
585 uint64_t tcps_states[TCP_NSTATES];
586
587 #ifdef INET6
588 if (tcp_done != 0)
589 return;
590 else
591 tcp_done = 1;
592 #endif
593
594 if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
595 sizeof(tcpstat), kread_counters) != 0)
596 return;
597
598 if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
599 &tcps_states, sizeof(tcps_states), kread_counters) != 0)
600 return;
601
602 xo_open_container("tcp");
603 xo_emit("{T:/%s}:\n", name);
604
605 #define p(f, m) if (tcpstat.f || sflag <= 1) \
606 xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
607 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \
608 xo_emit(m, (uintmax_t )tcpstat.f)
609 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
610 xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1), \
611 (uintmax_t )tcpstat.f2, plural(tcpstat.f2))
612 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
613 xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1), \
614 (uintmax_t )tcpstat.f2)
615 #define p3(f, m) if (tcpstat.f || sflag <= 1) \
616 xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
617
618 p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
619 p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
620 "{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
621 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
622 "{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
623 "({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
624 "{N:retransmitted}\n");
625 p(tcps_sndrexmitbad, "\t\t"
626 "{:sent-unnecessary-retransmitted-packets/%ju} "
627 "{N:/data packet%s unnecessarily retransmitted}\n");
628 p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
629 "{N:/resend%s initiated by MTU discovery}\n");
630 p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
631 "{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
632 "{N:delayed})\n");
633 p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
634 "{N:/URG only packet%s}\n");
635 p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
636 "{N:/window probe packet%s}\n");
637 p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
638 "{N:/window update packet%s}\n");
639 p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
640 "{N:/control packet%s}\n");
641 p(tcps_rcvtotal, "\t{:received-packets/%ju} "
642 "{N:/packet%s received}\n");
643 p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
644 "{:received-ack-packets/%ju} {N:/ack%s} "
645 "{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
646 p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
647 "{N:/duplicate ack%s}\n");
648 p(tcps_tunneled_pkts, "\t\t{:received-udp-tunneled-pkts/%ju} "
649 "{N:/UDP tunneled pkt%s}\n");
650 p(tcps_tunneled_errs, "\t\t{:received-bad-udp-tunneled-pkts/%ju} "
651 "{N:/UDP tunneled pkt cnt with error%s}\n");
652 p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-data-not-yet-sent/%ju} "
653 "{N:/ack%s for data not yet sent}\n");
654 p(tcps_rcvghostack, "\t\t{:received-acks-for-data-never-been-sent/%ju} "
655 "{N:/ack%s for data never been sent (ghost acks)}\n");
656 p(tcps_rcvacktooold, "\t\t{:received-acks-for-data-being-too-old/%ju} "
657 "{N:/ack%s for data being too old}\n");
658 p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
659 "{:received-in-sequence-packets/%ju} {N:/packet%s} "
660 "({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
661 "{N:received in-sequence}\n");
662 p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
663 "{:received-completely-duplicate-packets/%ju} "
664 "{N:/completely duplicate packet%s} "
665 "({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
666 p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
667 "{N:/old duplicate packet%s}\n");
668 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
669 "{:received-some-duplicate-packets/%ju} "
670 "{N:/packet%s with some dup. data} "
671 "({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
672 p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
673 "{N:/out-of-order packet%s} "
674 "({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
675 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
676 "{:received-after-window-packets/%ju} {N:/packet%s} "
677 "({:received-after-window-bytes/%ju} {N:/byte%s}) "
678 "{N:of data after window}\n");
679 p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
680 "{N:/window probe%s}\n");
681 p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
682 "{N:/window update packet%s}\n");
683 p(tcps_dsack_count, "\t\t{:received-with-dsack-packets/%ju} "
684 "{N:/packet%s received with dsack}\n");
685 p(tcps_dsack_bytes, "\t\t{:received-with-dsack-bytes/%ju} "
686 "{N:/dsack byte%s received (no TLP involved)}\n");
687 p(tcps_dsack_tlp_bytes, "\t\t{:received-with-dsack-bytes-tlp/%ju} "
688 "{N:/dsack byte%s received (TLP responsible)}\n");
689 p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
690 "{N:/packet%s received after close}\n");
691 p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
692 "{N:/discarded for bad checksum%s}\n");
693 p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
694 "{N:/discarded for bad header offset field%s}\n");
695 p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
696 "{N:discarded because packet too short}\n");
697 p1a(tcps_rcvreassfull, "\t\t{:discard-reassembly-queue-full/%ju} "
698 "{N:discarded due to full reassembly queue}\n");
699 p(tcps_connattempt, "\t{:connection-requests/%ju} "
700 "{N:/connection request%s}\n");
701 p(tcps_accepts, "\t{:connections-accepts/%ju} "
702 "{N:/connection accept%s}\n");
703 p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
704 "{N:/bad connection attempt%s}\n");
705 p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
706 "{N:/listen queue overflow%s}\n");
707 p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
708 "{N:/ignored RSTs in the window%s}\n");
709 p(tcps_connects, "\t{:connections-established/%ju} "
710 "{N:/connection%s established (including accepts)}\n");
711 p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
712 "{N:/time%s used RTT from hostcache}\n");
713 p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
714 "{N:/time%s used RTT variance from hostcache}\n");
715 p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
716 "{N:/time%s used slow-start threshold from hostcache}\n");
717 p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
718 "{N:/connection%s closed (including} "
719 "{:connection-drops/%ju} {N:/drop%s})\n");
720 p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
721 "{N:/connection%s updated cached RTT on close}\n");
722 p(tcps_cachedrttvar, "\t\t"
723 "{:connections-updated-variance-on-close/%ju} "
724 "{N:/connection%s updated cached RTT variance on close}\n");
725 p(tcps_cachedssthresh, "\t\t"
726 "{:connections-updated-ssthresh-on-close/%ju} "
727 "{N:/connection%s updated cached ssthresh on close}\n");
728 p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
729 "{N:/embryonic connection%s dropped}\n");
730 p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
731 "{N:/segment%s updated rtt (of} "
732 "{:segment-update-attempts/%ju} {N:/attempt%s})\n");
733 p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
734 "{N:/retransmit timeout%s}\n");
735 p(tcps_timeoutdrop, "\t\t"
736 "{:connections-dropped-by-retransmit-timeout/%ju} "
737 "{N:/connection%s dropped by rexmit timeout}\n");
738 p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
739 "{N:/persist timeout%s}\n");
740 p(tcps_persistdrop, "\t\t"
741 "{:connections-dropped-by-persist-timeout/%ju} "
742 "{N:/connection%s dropped by persist timeout}\n");
743 p(tcps_finwait2_drops, "\t"
744 "{:connections-dropped-by-finwait2-timeout/%ju} "
745 "{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
746 p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
747 "{N:/keepalive timeout%s}\n");
748 p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
749 "{N:/keepalive probe%s sent}\n");
750 p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
751 "{N:/connection%s dropped by keepalive}\n");
752 p(tcps_progdrops, "\t{:connections-dropped-due-to-progress-time/%ju} "
753 "{N:/connection%s dropped due to exceeding progress time}\n");
754 p(tcps_predack, "\t{:ack-header-predictions/%ju} "
755 "{N:/correct ACK header prediction%s}\n");
756 p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
757 "{N:/correct data packet header prediction%s}\n");
758
759 xo_open_container("syncache");
760
761 p3(tcps_sc_added, "\t{:entries-added/%ju} "
762 "{N:/syncache entr%s added}\n");
763 p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
764 "{N:/retransmitted}\n");
765 p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
766 p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
767 p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
768 p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
769 "{N:/bucket overflow}\n");
770 p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
771 "{N:/cache overflow}\n");
772 p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
773 p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
774 p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
775 p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
776 p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
777 p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
778 p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
779 p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
780 "{N:/cookie%s received}\n");
781
782 xo_close_container("syncache");
783
784 xo_open_container("hostcache");
785
786 p3(tcps_hc_added, "\t{:entries-added/%ju} "
787 "{N:/hostcache entr%s added}\n");
788 p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
789 "{N:/bucket overflow}\n");
790
791 xo_close_container("hostcache");
792
793 xo_open_container("sack");
794
795 p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
796 "{N:/SACK recovery episode%s}\n");
797 p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
798 "{N:/segment rexmit%s in SACK recovery episodes}\n");
799 p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
800 "{N:/byte rexmit%s in SACK recovery episodes}\n");
801 p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
802 "{N:/SACK option%s (SACK blocks) received}\n");
803 p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
804 "{N:/SACK option%s (SACK blocks) sent}\n");
805 p(tcps_sack_lostrexmt, "\t{:lost-retransmissions/%ju} "
806 "{N:/SACK retransmission%s lost}\n");
807 p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
808 "{N:/SACK scoreboard overflow}\n");
809
810 xo_close_container("sack");
811 xo_open_container("ecn");
812
813 p(tcps_ecn_rcvce, "\t{:received-ce-packets/%ju} "
814 "{N:/packet%s received with ECN CE bit set}\n");
815 p(tcps_ecn_rcvect0, "\t{:received-ect0-packets/%ju} "
816 "{N:/packet%s received with ECN ECT(0) bit set}\n");
817 p(tcps_ecn_rcvect1, "\t{:received-ect1-packets/%ju} "
818 "{N:/packet%s received with ECN ECT(1) bit set}\n");
819 p(tcps_ecn_sndect0, "\t{:sent-ect0-packets/%ju} "
820 "{N:/packet%s sent with ECN ECT(0) bit set}\n");
821 p(tcps_ecn_sndect1, "\t{:sent-ect1-packets/%ju} "
822 "{N:/packet%s sent with ECN ECT(1) bit set}\n");
823 p(tcps_ecn_shs, "\t{:handshakes/%ju} "
824 "{N:/successful ECN handshake%s}\n");
825 p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
826 "{N:/time%s ECN reduced the congestion window}\n");
827
828 p(tcps_ace_nect, "\t{:ace-nonect-syn/%ju} "
829 "{N:/ACE SYN packet%s with Non-ECT}\n");
830 p(tcps_ace_ect0, "\t{:ace-ect0-syn/%ju} "
831 "{N:/ACE SYN packet%s with ECT0}\n");
832 p(tcps_ace_ect1, "\t{:ace-ect1-syn/%ju} "
833 "{N:/ACE SYN packet%s with ECT1}\n");
834 p(tcps_ace_ce, "\t{:ace-ce-syn/%ju} "
835 "{N:/ACE SYN packet%s with CE}\n");
836
837 xo_close_container("ecn");
838 xo_open_container("tcp-signature");
839 p(tcps_sig_rcvgoodsig, "\t{:received-good-signature/%ju} "
840 "{N:/packet%s with matching signature received}\n");
841 p(tcps_sig_rcvbadsig, "\t{:received-bad-signature/%ju} "
842 "{N:/packet%s with bad signature received}\n");
843 p(tcps_sig_err_buildsig, "\t{:failed-make-signature/%ju} "
844 "{N:/time%s failed to make signature due to no SA}\n");
845 p(tcps_sig_err_sigopt, "\t{:no-signature-expected/%ju} "
846 "{N:/time%s unexpected signature received}\n");
847 p(tcps_sig_err_nosigopt, "\t{:no-signature-provided/%ju} "
848 "{N:/time%s no signature provided by segment}\n");
849
850 xo_close_container("tcp-signature");
851 xo_open_container("pmtud");
852
853 p(tcps_pmtud_blackhole_activated, "\t{:pmtud-activated/%ju} "
854 "{N:/Path MTU discovery black hole detection activation%s}\n");
855 p(tcps_pmtud_blackhole_activated_min_mss,
856 "\t{:pmtud-activated-min-mss/%ju} "
857 "{N:/Path MTU discovery black hole detection min MSS activation%s}\n");
858 p(tcps_pmtud_blackhole_failed, "\t{:pmtud-failed/%ju} "
859 "{N:/Path MTU discovery black hole detection failure%s}\n");
860
861 xo_close_container("pmtud");
862 xo_open_container("tw");
863
864 p(tcps_tw_responds, "\t{:tw_responds/%ju} "
865 "{N:/time%s connection in TIME-WAIT responded with ACK}\n");
866 p(tcps_tw_recycles, "\t{:tw_recycles/%ju} "
867 "{N:/time%s connection in TIME-WAIT was actively recycled}\n");
868 p(tcps_tw_resets, "\t{:tw_resets/%ju} "
869 "{N:/time%s connection in TIME-WAIT responded with RST}\n");
870
871 xo_close_container("tw");
872 #undef p
873 #undef p1a
874 #undef p2
875 #undef p2a
876 #undef p3
877
878 xo_open_container("TCP connection count by state");
879 xo_emit("{T:/TCP connection count by state}:\n");
880 for (int i = 0; i < TCP_NSTATES; i++) {
881 /*
882 * XXXGL: is there a way in libxo to use %s
883 * in the "content string" of a format
884 * string? I failed to do that, that's why
885 * a temporary buffer is used to construct
886 * format string for xo_emit().
887 */
888 char fmtbuf[80];
889
890 if (sflag > 1 && tcps_states[i] == 0)
891 continue;
892 snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
893 "{Np:/connection ,connections} in %s state\n",
894 tcpstates[i], tcpstates[i]);
895 xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
896 }
897 xo_close_container("TCP connection count by state");
898
899 xo_close_container("tcp");
900 }
901
902 /*
903 * Dump UDP statistics structure.
904 */
905 void
udp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)906 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
907 {
908 struct udpstat udpstat;
909 uint64_t delivered;
910
911 #ifdef INET6
912 if (udp_done != 0)
913 return;
914 else
915 udp_done = 1;
916 #endif
917
918 if (fetch_stats("net.inet.udp.stats", off, &udpstat,
919 sizeof(udpstat), kread_counters) != 0)
920 return;
921
922 xo_open_container("udp");
923 xo_emit("{T:/%s}:\n", name);
924
925 #define p(f, m) if (udpstat.f || sflag <= 1) \
926 xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
927 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
928 xo_emit("\t" m, (uintmax_t)udpstat.f)
929
930 p(udps_ipackets, "{:received-datagrams/%ju} "
931 "{N:/datagram%s received}\n");
932 p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
933 "{N:/with incomplete header}\n");
934 p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
935 "{N:/with bad data length field}\n");
936 p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
937 "{N:/with bad checksum}\n");
938 p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
939 "{N:/with no checksum}\n");
940 p1a(udps_noport, "{:dropped-no-socket/%ju} "
941 "{N:/dropped due to no socket}\n");
942 p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
943 "{N:/broadcast\\/multicast datagram%s undelivered}\n");
944 p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
945 "{N:/dropped due to full socket buffers}\n");
946 p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
947 "{N:/not for hashed pcb}\n");
948 delivered = udpstat.udps_ipackets -
949 udpstat.udps_hdrops -
950 udpstat.udps_badlen -
951 udpstat.udps_badsum -
952 udpstat.udps_noport -
953 udpstat.udps_noportbcast -
954 udpstat.udps_fullsock;
955 if (delivered || sflag <= 1)
956 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
957 (uint64_t)delivered);
958 p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
959 /* the next statistic is cumulative in udps_noportbcast */
960 p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
961 "{N:/time%s multicast source filter matched}\n");
962 #undef p
963 #undef p1a
964 xo_close_container("udp");
965 }
966
967 /*
968 * Dump CARP statistics structure.
969 */
970 void
carp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)971 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
972 {
973 struct carpstats carpstat;
974
975 if (fetch_stats("net.inet.carp.stats", off, &carpstat,
976 sizeof(carpstat), kread_counters) != 0)
977 return;
978
979 xo_open_container(name);
980 xo_emit("{T:/%s}:\n", name);
981
982 #define p(f, m) if (carpstat.f || sflag <= 1) \
983 xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
984 #define p2(f, m) if (carpstat.f || sflag <= 1) \
985 xo_emit(m, (uintmax_t)carpstat.f)
986
987 p(carps_ipackets, "\t{:received-inet-packets/%ju} "
988 "{N:/packet%s received (IPv4)}\n");
989 p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
990 "{N:/packet%s received (IPv6)}\n");
991 p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
992 "{N:/packet%s discarded for wrong TTL}\n");
993 p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
994 "{N:/packet%s shorter than header}\n");
995 p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
996 "{N:/discarded for bad checksum%s}\n");
997 p(carps_badver, "\t\t{:dropped-bad-version/%ju} "
998 "{N:/discarded packet%s with a bad version}\n");
999 p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
1000 "{N:/discarded because packet too short}\n");
1001 p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
1002 "{N:/discarded for bad authentication}\n");
1003 p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
1004 "{N:/discarded for bad vhid}\n");
1005 p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
1006 "{N:/discarded because of a bad address list}\n");
1007 p(carps_opackets, "\t{:sent-inet-packets/%ju} "
1008 "{N:/packet%s sent (IPv4)}\n");
1009 p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
1010 "{N:/packet%s sent (IPv6)}\n");
1011 p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
1012 "{N:/send failed due to mbuf memory error}\n");
1013 #if notyet
1014 p(carps_ostates, "\t\t{:send-state-updates/%s} "
1015 "{N:/state update%s sent}\n");
1016 #endif
1017 #undef p
1018 #undef p2
1019 xo_close_container(name);
1020 }
1021
1022 /*
1023 * Dump IP statistics structure.
1024 */
1025 void
ip_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1026 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1027 {
1028 struct ipstat ipstat;
1029
1030 if (fetch_stats("net.inet.ip.stats", off, &ipstat,
1031 sizeof(ipstat), kread_counters) != 0)
1032 return;
1033
1034 xo_open_container(name);
1035 xo_emit("{T:/%s}:\n", name);
1036
1037 #define p(f, m) if (ipstat.f || sflag <= 1) \
1038 xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
1039 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
1040 xo_emit(m, (uintmax_t )ipstat.f)
1041
1042 p(ips_total, "\t{:received-packets/%ju} "
1043 "{N:/total packet%s received}\n");
1044 p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
1045 "{N:/bad header checksum%s}\n");
1046 p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
1047 "{N:/with size smaller than minimum}\n");
1048 p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
1049 "{N:/with data size < data length}\n");
1050 p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
1051 "{N:/with ip length > max ip packet size}\n");
1052 p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
1053 "{N:/with header length < data size}\n");
1054 p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
1055 "{N:/with data length < header length}\n");
1056 p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
1057 "{N:/with bad options}\n");
1058 p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
1059 "{N:/with incorrect version number}\n");
1060 p(ips_fragments, "\t{:received-fragments/%ju} "
1061 "{N:/fragment%s received}\n");
1062 p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
1063 "{N:/fragment%s dropped (dup or out of space)}\n");
1064 p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
1065 "{N:/fragment%s dropped after timeout}\n");
1066 p(ips_reassembled, "\t{:reassembled-packets/%ju} "
1067 "{N:/packet%s reassembled ok}\n");
1068 p(ips_delivered, "\t{:received-local-packets/%ju} "
1069 "{N:/packet%s for this host}\n");
1070 p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
1071 "{N:/packet%s for unknown\\/unsupported protocol}\n");
1072 p(ips_forward, "\t{:forwarded-packets/%ju} "
1073 "{N:/packet%s forwarded}");
1074 p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
1075 "{N:/packet%s fast forwarded})");
1076 if (ipstat.ips_forward || sflag <= 1)
1077 xo_emit("\n");
1078 p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
1079 "{N:/packet%s not forwardable}\n");
1080 p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
1081 "{N:/packet%s received for unknown multicast group}\n");
1082 p(ips_redirectsent, "\t{:redirects-sent/%ju} "
1083 "{N:/redirect%s sent}\n");
1084 p(ips_localout, "\t{:sent-packets/%ju} "
1085 "{N:/packet%s sent from this host}\n");
1086 p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
1087 "{N:/packet%s sent with fabricated ip header}\n");
1088 p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
1089 "{N:/output packet%s dropped due to no bufs, etc.}\n");
1090 p(ips_noroute, "\t{:discard-no-route/%ju} "
1091 "{N:/output packet%s discarded due to no route}\n");
1092 p(ips_fragmented, "\t{:sent-fragments/%ju} "
1093 "{N:/output datagram%s fragmented}\n");
1094 p(ips_ofragments, "\t{:fragments-created/%ju} "
1095 "{N:/fragment%s created}\n");
1096 p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
1097 "{N:/datagram%s that can't be fragmented}\n");
1098 p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
1099 "{N:/tunneling packet%s that can't find gif}\n");
1100 p(ips_badaddr, "\t{:discard-bad-address/%ju} "
1101 "{N:/datagram%s with bad address in header}\n");
1102 #undef p
1103 #undef p1a
1104 xo_close_container(name);
1105 }
1106
1107 /*
1108 * Dump ARP statistics structure.
1109 */
1110 void
arp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1111 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1112 {
1113 struct arpstat arpstat;
1114
1115 if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
1116 sizeof(arpstat), kread_counters) != 0)
1117 return;
1118
1119 xo_open_container(name);
1120 xo_emit("{T:/%s}:\n", name);
1121
1122 #define p(f, m) if (arpstat.f || sflag <= 1) \
1123 xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
1124 #define p2(f, m) if (arpstat.f || sflag <= 1) \
1125 xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
1126
1127 p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
1128 p(txerrors, "{:sent-failures/%ju} {N:/ARP request%s failed to sent}\n");
1129 p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
1130 p(rxrequests, "{:received-requests/%ju} "
1131 "{N:/ARP request%s received}\n");
1132 p2(rxreplies, "{:received-replies/%ju} "
1133 "{N:/ARP repl%s received}\n");
1134 p(received, "{:received-packets/%ju} "
1135 "{N:/ARP packet%s received}\n");
1136 p(dropped, "{:dropped-no-entry/%ju} "
1137 "{N:/total packet%s dropped due to no ARP entry}\n");
1138 p(timeouts, "{:entries-timeout/%ju} "
1139 "{N:/ARP entry%s timed out}\n");
1140 p(dupips, "{:dropped-duplicate-address/%ju} "
1141 "{N:/Duplicate IP%s seen}\n");
1142 #undef p
1143 #undef p2
1144 xo_close_container(name);
1145 }
1146
1147
1148
1149 static const char *icmpnames[ICMP_MAXTYPE + 1] = {
1150 "echo reply", /* RFC 792 */
1151 "#1",
1152 "#2",
1153 "destination unreachable", /* RFC 792 */
1154 "source quench", /* RFC 792 */
1155 "routing redirect", /* RFC 792 */
1156 "#6",
1157 "#7",
1158 "echo", /* RFC 792 */
1159 "router advertisement", /* RFC 1256 */
1160 "router solicitation", /* RFC 1256 */
1161 "time exceeded", /* RFC 792 */
1162 "parameter problem", /* RFC 792 */
1163 "time stamp", /* RFC 792 */
1164 "time stamp reply", /* RFC 792 */
1165 "information request", /* RFC 792 */
1166 "information request reply", /* RFC 792 */
1167 "address mask request", /* RFC 950 */
1168 "address mask reply", /* RFC 950 */
1169 "#19",
1170 "#20",
1171 "#21",
1172 "#22",
1173 "#23",
1174 "#24",
1175 "#25",
1176 "#26",
1177 "#27",
1178 "#28",
1179 "#29",
1180 "icmp traceroute", /* RFC 1393 */
1181 "datagram conversion error", /* RFC 1475 */
1182 "mobile host redirect",
1183 "IPv6 where-are-you",
1184 "IPv6 i-am-here",
1185 "mobile registration req",
1186 "mobile registration reply",
1187 "domain name request", /* RFC 1788 */
1188 "domain name reply", /* RFC 1788 */
1189 "icmp SKIP",
1190 "icmp photuris", /* RFC 2521 */
1191 };
1192
1193 /*
1194 * Dump ICMP statistics.
1195 */
1196 void
icmp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1197 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1198 {
1199 struct icmpstat icmpstat;
1200 size_t len;
1201 int i, first;
1202
1203 if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
1204 sizeof(icmpstat), kread_counters) != 0)
1205 return;
1206
1207 xo_open_container(name);
1208 xo_emit("{T:/%s}:\n", name);
1209
1210 #define p(f, m) if (icmpstat.f || sflag <= 1) \
1211 xo_emit(m, icmpstat.f, plural(icmpstat.f))
1212 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
1213 xo_emit(m, icmpstat.f)
1214 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
1215 xo_emit(m, icmpstat.f, plurales(icmpstat.f))
1216
1217 p(icps_error, "\t{:icmp-calls/%lu} "
1218 "{N:/call%s to icmp_error}\n");
1219 p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
1220 "{N:/error%s not generated in response to an icmp message}\n");
1221
1222 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1223 if (icmpstat.icps_outhist[i] != 0) {
1224 if (first) {
1225 xo_open_list("output-histogram");
1226 xo_emit("\tOutput histogram:\n");
1227 first = 0;
1228 }
1229 xo_open_instance("output-histogram");
1230 if (icmpnames[i] != NULL)
1231 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1232 icmpnames[i], icmpstat.icps_outhist[i]);
1233 else
1234 xo_emit("\t\tunknown ICMP #{k:name/%d}: "
1235 "{:count/%lu}\n",
1236 i, icmpstat.icps_outhist[i]);
1237 xo_close_instance("output-histogram");
1238 }
1239 }
1240 if (!first)
1241 xo_close_list("output-histogram");
1242
1243 p(icps_badcode, "\t{:dropped-bad-code/%lu} "
1244 "{N:/message%s with bad code fields}\n");
1245 p(icps_tooshort, "\t{:dropped-too-short/%lu} "
1246 "{N:/message%s less than the minimum length}\n");
1247 p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
1248 "{N:/message%s with bad checksum}\n");
1249 p(icps_badlen, "\t{:dropped-bad-length/%lu} "
1250 "{N:/message%s with bad length}\n");
1251 p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
1252 "{N:/multicast echo requests ignored}\n");
1253 p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
1254 "{N:/multicast timestamp requests ignored}\n");
1255
1256 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1257 if (icmpstat.icps_inhist[i] != 0) {
1258 if (first) {
1259 xo_open_list("input-histogram");
1260 xo_emit("\tInput histogram:\n");
1261 first = 0;
1262 }
1263 xo_open_instance("input-histogram");
1264 if (icmpnames[i] != NULL)
1265 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1266 icmpnames[i],
1267 icmpstat.icps_inhist[i]);
1268 else
1269 xo_emit(
1270 "\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
1271 i, icmpstat.icps_inhist[i]);
1272 xo_close_instance("input-histogram");
1273 }
1274 }
1275 if (!first)
1276 xo_close_list("input-histogram");
1277
1278 p(icps_reflect, "\t{:sent-packets/%lu} "
1279 "{N:/message response%s generated}\n");
1280 p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
1281 "{N:/invalid return address%s}\n");
1282 p(icps_noroute, "\t{:discard-no-route/%lu} "
1283 "{N:/no return route%s}\n");
1284 #undef p
1285 #undef p1a
1286 #undef p2
1287 if (live) {
1288 len = sizeof i;
1289 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1290 0)
1291 return;
1292 xo_emit("\tICMP address mask responses are "
1293 "{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
1294 }
1295
1296 xo_close_container(name);
1297 }
1298
1299 /*
1300 * Dump IGMP statistics structure.
1301 */
1302 void
igmp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1303 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1304 {
1305 struct igmpstat igmpstat;
1306 int error, zflag0;
1307
1308 if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1309 sizeof(igmpstat), kread) != 0)
1310 return;
1311 /*
1312 * Reread net.inet.igmp.stats when zflag == 1.
1313 * This is because this MIB contains version number and
1314 * length of the structure which are not set when clearing
1315 * the counters.
1316 */
1317 zflag0 = zflag;
1318 if (zflag) {
1319 zflag = 0;
1320 error = fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1321 sizeof(igmpstat), kread);
1322 zflag = zflag0;
1323 if (error)
1324 return;
1325 }
1326
1327 if (igmpstat.igps_version != IGPS_VERSION_3) {
1328 xo_warnx("%s: version mismatch (%d != %d)", __func__,
1329 igmpstat.igps_version, IGPS_VERSION_3);
1330 return;
1331 }
1332 if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1333 xo_warnx("%s: size mismatch (%d != %d)", __func__,
1334 igmpstat.igps_len, IGPS_VERSION3_LEN);
1335 return;
1336 }
1337
1338 xo_open_container(name);
1339 xo_emit("{T:/%s}:\n", name);
1340
1341 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1342 xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1343 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1344 xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1345
1346 p64(igps_rcv_total, "\t{:received-messages/%ju} "
1347 "{N:/message%s received}\n");
1348 p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1349 "{N:/message%s received with too few bytes}\n");
1350 p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
1351 "{N:/message%s received with wrong TTL}\n");
1352 p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1353 "{N:/message%s received with bad checksum}\n");
1354 py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
1355 "{N:/V1\\/V2 membership quer%s received}\n");
1356 py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
1357 "{N:/V3 membership quer%s received}\n");
1358 py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
1359 "{N:/membership quer%s received with invalid field(s)}\n");
1360 py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
1361 "{N:/general quer%s received}\n");
1362 py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
1363 "{N:/group quer%s received}\n");
1364 py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
1365 "{N:/group-source quer%s received}\n");
1366 py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
1367 "{N:/group-source quer%s dropped}\n");
1368 p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
1369 "{N:/membership report%s received}\n");
1370 p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
1371 "{N:/membership report%s received with invalid field(s)}\n");
1372 p64(igps_rcv_ourreports, "\t"
1373 "{:received-membership-reports-matching/%ju} "
1374 "{N:/membership report%s received for groups to which we belong}"
1375 "\n");
1376 p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
1377 "{N:/V3 report%s received without Router Alert}\n");
1378 p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
1379 "{N:/membership report%s sent}\n");
1380 #undef p64
1381 #undef py64
1382 xo_close_container(name);
1383 }
1384
1385 /*
1386 * Dump PIM statistics structure.
1387 */
1388 void
pim_stats(u_long off __unused,const char * name,int af1 __unused,int proto __unused)1389 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1390 int proto __unused)
1391 {
1392 struct pimstat pimstat;
1393
1394 if (fetch_stats("net.inet.pim.stats", off, &pimstat,
1395 sizeof(pimstat), kread_counters) != 0)
1396 return;
1397
1398 xo_open_container(name);
1399 xo_emit("{T:/%s}:\n", name);
1400
1401 #define p(f, m) if (pimstat.f || sflag <= 1) \
1402 xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1403 #define py(f, m) if (pimstat.f || sflag <= 1) \
1404 xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1405
1406 p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
1407 "{N:/message%s received}\n");
1408 p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
1409 "{N:/byte%s received}\n");
1410 p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1411 "{N:/message%s received with too few bytes}\n");
1412 p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1413 "{N:/message%s received with bad checksum}\n");
1414 p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1415 "{N:/message%s received with bad version}\n");
1416 p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
1417 "{N:/data register message%s received}\n");
1418 p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
1419 "{N:/data register byte%s received}\n");
1420 p(pims_rcv_registers_wrongiif, "\t"
1421 "{:received-data-register-wrong-interface/%ju} "
1422 "{N:/data register message%s received on wrong iif}\n");
1423 p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1424 "{N:/bad register%s received}\n");
1425 p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
1426 "{N:/data register message%s sent}\n");
1427 p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
1428 "{N:/data register byte%s sent}\n");
1429 #undef p
1430 #undef py
1431 xo_close_container(name);
1432 }
1433
1434 /*
1435 * Dump divert(4) statistics structure.
1436 */
1437 void
divert_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1438 divert_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1439 {
1440 struct divstat divstat;
1441
1442 if (fetch_stats("net.inet.divert.stats", off, &divstat,
1443 sizeof(divstat), kread_counters) != 0)
1444 return;
1445
1446 xo_open_container(name);
1447 xo_emit("{T:/%s}:\n", name);
1448
1449 #define p(f, m) if (divstat.f || sflag <= 1) \
1450 xo_emit(m, (uintmax_t)divstat.f, plural(divstat.f))
1451
1452 p(div_diverted, "\t{:diverted-packets/%ju} "
1453 "{N:/packet%s successfully diverted to userland}\n");
1454 p(div_noport, "\t{:noport-fails/%ju} "
1455 "{N:/packet%s failed to divert due to no socket bound at port}\n");
1456 p(div_outbound, "\t{:outbound-packets/%ju} "
1457 "{N:/packet%s successfully re-injected as outbound}\n");
1458 p(div_inbound, "\t{:inbound-packets/%ju} "
1459 "{N:/packet%s successfully re-injected as inbound}\n");
1460 #undef p
1461 xo_close_container(name);
1462 }
1463
1464 #ifdef INET
1465 /*
1466 * Pretty print an Internet address (net address + port).
1467 */
1468 static void
inetprint(const char * container,struct in_addr * in,int port,const char * proto,int num_port,const int af1)1469 inetprint(const char *container, struct in_addr *in, int port,
1470 const char *proto, int num_port, const int af1)
1471 {
1472 struct servent *sp = 0;
1473 char line[80], *cp;
1474 int width;
1475 size_t alen, plen;
1476
1477 if (container)
1478 xo_open_container(container);
1479
1480 if (Wflag)
1481 snprintf(line, sizeof(line), "%s.", inetname(in));
1482 else
1483 snprintf(line, sizeof(line), "%.*s.",
1484 (Aflag && !num_port) ? 12 : 16, inetname(in));
1485 alen = strlen(line);
1486 cp = line + alen;
1487 if (!num_port && port)
1488 sp = getservbyport((int)port, proto);
1489 if (sp || port == 0)
1490 snprintf(cp, sizeof(line) - alen,
1491 "%.15s ", sp ? sp->s_name : "*");
1492 else
1493 snprintf(cp, sizeof(line) - alen,
1494 "%d ", ntohs((u_short)port));
1495 width = (Aflag && !Wflag) ? 18 :
1496 ((!Wflag || af1 == AF_INET) ? 22 : 45);
1497 if (Wflag)
1498 xo_emit("{d:target/%-*s} ", width, line);
1499 else
1500 xo_emit("{d:target/%-*.*s} ", width, width, line);
1501
1502 plen = strlen(cp) - 1;
1503 alen--;
1504 xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1505 plen, cp);
1506
1507 if (container)
1508 xo_close_container(container);
1509 }
1510
1511 /*
1512 * Construct an Internet address representation.
1513 * If numeric_addr has been supplied, give
1514 * numeric value, otherwise try for symbolic name.
1515 */
1516 char *
inetname(struct in_addr * inp)1517 inetname(struct in_addr *inp)
1518 {
1519 char *cp;
1520 static char line[MAXHOSTNAMELEN];
1521 struct hostent *hp;
1522
1523 cp = 0;
1524 if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1525 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1526 if (hp) {
1527 cp = hp->h_name;
1528 trimdomain(cp, strlen(cp));
1529 }
1530 }
1531 if (inp->s_addr == INADDR_ANY)
1532 strcpy(line, "*");
1533 else if (cp) {
1534 strlcpy(line, cp, sizeof(line));
1535 } else {
1536 inp->s_addr = ntohl(inp->s_addr);
1537 #define C(x) ((u_int)((x) & 0xff))
1538 snprintf(line, sizeof(line), "%u.%u.%u.%u",
1539 C(inp->s_addr >> 24), C(inp->s_addr >> 16),
1540 C(inp->s_addr >> 8), C(inp->s_addr));
1541 }
1542 return (line);
1543 }
1544 #endif
1545