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