xref: /freebsd/usr.bin/netstat/inet.c (revision aa24f48b361effe51163877d84f1b70d32b77e04)
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 __FBSDID("$FreeBSD$");
38 
39 #include <sys/param.h>
40 #include <sys/queue.h>
41 #include <sys/domain.h>
42 #include <sys/protosw.h>
43 #include <sys/socket.h>
44 #include <sys/socketvar.h>
45 #include <sys/sysctl.h>
46 
47 #include <net/route.h>
48 #include <net/if_arp.h>
49 #include <netinet/in.h>
50 #include <netinet/in_systm.h>
51 #include <netinet/ip.h>
52 #include <netinet/ip_carp.h>
53 #ifdef INET6
54 #include <netinet/ip6.h>
55 #endif /* INET6 */
56 #include <netinet/in_pcb.h>
57 #include <netinet/ip_icmp.h>
58 #include <netinet/icmp_var.h>
59 #include <netinet/igmp_var.h>
60 #include <netinet/ip_var.h>
61 #include <netinet/pim_var.h>
62 #include <netinet/tcp.h>
63 #include <netinet/tcpip.h>
64 #include <netinet/tcp_seq.h>
65 #define	TCPSTATES
66 #include <netinet/tcp_fsm.h>
67 #include <netinet/tcp_timer.h>
68 #include <netinet/tcp_var.h>
69 #include <netinet/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 void	inetprint(const char *, struct in_addr *, int, const char *, int,
88     const int);
89 #ifdef INET6
90 static int udp_done, tcp_done, sdp_done;
91 #endif /* INET6 */
92 
93 static int
94 pcblist_sysctl(int proto, const char *name, char **bufp)
95 {
96 	const char *mibvar;
97 	char *buf;
98 	size_t len;
99 
100 	switch (proto) {
101 	case IPPROTO_TCP:
102 		mibvar = "net.inet.tcp.pcblist";
103 		break;
104 	case IPPROTO_UDP:
105 		mibvar = "net.inet.udp.pcblist";
106 		break;
107 	case IPPROTO_DIVERT:
108 		mibvar = "net.inet.divert.pcblist";
109 		break;
110 	default:
111 		mibvar = "net.inet.raw.pcblist";
112 		break;
113 	}
114 	if (strncmp(name, "sdp", 3) == 0)
115 		mibvar = "net.inet.sdp.pcblist";
116 	len = 0;
117 	if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
118 		if (errno != ENOENT)
119 			xo_warn("sysctl: %s", mibvar);
120 		return (0);
121 	}
122 	if ((buf = malloc(len)) == NULL) {
123 		xo_warnx("malloc %lu bytes", (u_long)len);
124 		return (0);
125 	}
126 	if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
127 		xo_warn("sysctl: %s", mibvar);
128 		free(buf);
129 		return (0);
130 	}
131 	*bufp = buf;
132 	return (1);
133 }
134 
135 /*
136  * Copied directly from uipc_socket2.c.  We leave out some fields that are in
137  * nested structures that aren't used to avoid extra work.
138  */
139 static void
140 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
141 {
142 	xsb->sb_cc = sb->sb_ccc;
143 	xsb->sb_hiwat = sb->sb_hiwat;
144 	xsb->sb_mbcnt = sb->sb_mbcnt;
145 	xsb->sb_mcnt = sb->sb_mcnt;
146 	xsb->sb_ccnt = sb->sb_ccnt;
147 	xsb->sb_mbmax = sb->sb_mbmax;
148 	xsb->sb_lowat = sb->sb_lowat;
149 	xsb->sb_flags = sb->sb_flags;
150 	xsb->sb_timeo = sb->sb_timeo;
151 }
152 
153 int
154 sotoxsocket(struct socket *so, struct xsocket *xso)
155 {
156 	struct protosw proto;
157 	struct domain domain;
158 
159 	bzero(xso, sizeof *xso);
160 	xso->xso_len = sizeof *xso;
161 	xso->xso_so = so;
162 	xso->so_type = so->so_type;
163 	xso->so_options = so->so_options;
164 	xso->so_linger = so->so_linger;
165 	xso->so_state = so->so_state;
166 	xso->so_pcb = so->so_pcb;
167 	if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
168 		return (-1);
169 	xso->xso_protocol = proto.pr_protocol;
170 	if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
171 		return (-1);
172 	xso->xso_family = domain.dom_family;
173 	xso->so_timeo = so->so_timeo;
174 	xso->so_error = so->so_error;
175 	if (SOLISTENING(so)) {
176 		xso->so_qlen = so->sol_qlen;
177 		xso->so_incqlen = so->sol_incqlen;
178 		xso->so_qlimit = so->sol_qlimit;
179 	} else {
180 		sbtoxsockbuf(&so->so_snd, &xso->so_snd);
181 		sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
182 		xso->so_oobmark = so->so_oobmark;
183 	}
184 	return (0);
185 }
186 
187 /*
188  * Print a summary of connections related to an Internet
189  * protocol.  For TCP, also give state of connection.
190  * Listening processes (aflag) are suppressed unless the
191  * -a (all) flag is specified.
192  */
193 void
194 protopr(u_long off, const char *name, int af1, int proto)
195 {
196 	static int first = 1;
197 	int istcp;
198 	char *buf;
199 	const char *vchar;
200 	struct xtcpcb *tp;
201 	struct xinpcb *inp;
202 	struct xinpgen *xig, *oxig;
203 	struct xsocket *so;
204 
205 	istcp = 0;
206 	switch (proto) {
207 	case IPPROTO_TCP:
208 #ifdef INET6
209 		if (strncmp(name, "sdp", 3) != 0) {
210 			if (tcp_done != 0)
211 				return;
212 			else
213 				tcp_done = 1;
214 		} else {
215 			if (sdp_done != 0)
216 				return;
217 			else
218 				sdp_done = 1;
219 		}
220 #endif
221 		istcp = 1;
222 		break;
223 	case IPPROTO_UDP:
224 #ifdef INET6
225 		if (udp_done != 0)
226 			return;
227 		else
228 			udp_done = 1;
229 #endif
230 		break;
231 	}
232 
233 	if (!pcblist_sysctl(proto, name, &buf))
234 		return;
235 
236 	oxig = xig = (struct xinpgen *)buf;
237 	for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
238 	    xig->xig_len > sizeof(struct xinpgen);
239 	    xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
240 		if (istcp) {
241 			tp = (struct xtcpcb *)xig;
242 			inp = &tp->xt_inp;
243 		} else {
244 			inp = (struct xinpcb *)xig;
245 		}
246 		so = &inp->xi_socket;
247 
248 		/* Ignore sockets for protocols other than the desired one. */
249 		if (so->xso_protocol != proto)
250 			continue;
251 
252 		/* Ignore PCBs which were freed during copyout. */
253 		if (inp->inp_gencnt > oxig->xig_gen)
254 			continue;
255 
256 		if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
257 #ifdef INET6
258 		    || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
259 #endif /* INET6 */
260 		    || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
261 #ifdef INET6
262 					  && (inp->inp_vflag & INP_IPV6) == 0
263 #endif /* INET6 */
264 			))
265 		    )
266 			continue;
267 		if (!aflag &&
268 		    (
269 		     (istcp && tp->t_state == TCPS_LISTEN)
270 		     || (af1 == AF_INET &&
271 		      inet_lnaof(inp->inp_laddr) == INADDR_ANY)
272 #ifdef INET6
273 		     || (af1 == AF_INET6 &&
274 			 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
275 #endif /* INET6 */
276 		     || (af1 == AF_UNSPEC &&
277 			 (((inp->inp_vflag & INP_IPV4) != 0 &&
278 			   inet_lnaof(inp->inp_laddr) == INADDR_ANY)
279 #ifdef INET6
280 			  || ((inp->inp_vflag & INP_IPV6) != 0 &&
281 			      IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
282 #endif
283 			  ))
284 		     ))
285 			continue;
286 
287 		if (first) {
288 			if (!Lflag) {
289 				xo_emit("Active Internet connections");
290 				if (aflag)
291 					xo_emit(" (including servers)");
292 			} else
293 				xo_emit(
294 	"Current listen queue sizes (qlen/incqlen/maxqlen)");
295 			xo_emit("\n");
296 			if (Aflag)
297 				xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
298 				    "Tcpcb");
299 			if (Lflag)
300 				xo_emit((Aflag && !Wflag) ?
301 				    "{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
302 				    ((!Wflag || af1 == AF_INET) ?
303 				    "{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
304 				    "{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
305 				    "Proto", "Listen", "Local Address");
306 			else if (Tflag)
307 				xo_emit((Aflag && !Wflag) ?
308     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
309 				    ((!Wflag || af1 == AF_INET) ?
310     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
311     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
312 				    "Proto", "Rexmit", "OOORcv", "0-win",
313 				    "Local Address", "Foreign Address");
314 			else {
315 				xo_emit((Aflag && !Wflag) ?
316     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
317 				    ((!Wflag || af1 == AF_INET) ?
318     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
319     "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
320 				    "Proto", "Recv-Q", "Send-Q",
321 				    "Local Address", "Foreign Address");
322 				if (!xflag && !Rflag)
323 					xo_emit(" (state)");
324 			}
325 			if (xflag) {
326 				xo_emit(" {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
327 				    "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
328 				    "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
329 				    "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
330 				    "R-MBUF", "S-MBUF", "R-CLUS", "S-CLUS",
331 				    "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
332 				    "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
333 				xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
334 				    "{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
335 				    "rexmt", "persist", "keep", "2msl",
336 				    "delack", "rcvtime");
337 			} else if (Rflag) {
338 				xo_emit("  {T:/%8.8s} {T:/%5.5s}",
339 				    "flowid", "ftype");
340 			}
341 			xo_emit("\n");
342 			first = 0;
343 		}
344 		if (Lflag && so->so_qlimit == 0)
345 			continue;
346 		xo_open_instance("socket");
347 		if (Aflag) {
348 			if (istcp)
349 				xo_emit("{q:address/%*lx} ",
350 				    2 * (int)sizeof(void *),
351 				    (u_long)inp->inp_ppcb);
352 			else
353 				xo_emit("{q:address/%*lx} ",
354 				    2 * (int)sizeof(void *),
355 				    (u_long)so->so_pcb);
356 		}
357 #ifdef INET6
358 		if ((inp->inp_vflag & INP_IPV6) != 0)
359 			vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
360 			    "46" : "6";
361 		else
362 #endif
363 		vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
364 		    "4" : "";
365 		if (istcp && (tp->t_flags & TF_TOE) != 0)
366 			xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
367 		else
368 			xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
369 		if (Lflag) {
370 			char buf1[33];
371 
372 			snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
373 			    so->so_incqlen, so->so_qlimit);
374 			xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
375 		} else if (Tflag) {
376 			if (istcp)
377 				xo_emit("{:sent-retransmit-packets/%6u} "
378 				    "{:received-out-of-order-packets/%6u} "
379 				    "{:sent-zero-window/%6u} ",
380 				    tp->t_sndrexmitpack, tp->t_rcvoopack,
381 				    tp->t_sndzerowin);
382 			else
383 				xo_emit("{P:/%21s}", "");
384 		} else {
385 			xo_emit("{:receive-bytes-waiting/%6u} "
386 			    "{:send-bytes-waiting/%6u} ",
387 			    so->so_rcv.sb_cc, so->so_snd.sb_cc);
388 		}
389 		if (numeric_port) {
390 			if (inp->inp_vflag & INP_IPV4) {
391 				inetprint("local", &inp->inp_laddr,
392 				    (int)inp->inp_lport, name, 1, af1);
393 				if (!Lflag)
394 					inetprint("remote", &inp->inp_faddr,
395 					    (int)inp->inp_fport, name, 1, af1);
396 			}
397 #ifdef INET6
398 			else if (inp->inp_vflag & INP_IPV6) {
399 				inet6print("local", &inp->in6p_laddr,
400 				    (int)inp->inp_lport, name, 1);
401 				if (!Lflag)
402 					inet6print("remote", &inp->in6p_faddr,
403 					    (int)inp->inp_fport, name, 1);
404 			} /* else nothing printed now */
405 #endif /* INET6 */
406 		} else if (inp->inp_flags & INP_ANONPORT) {
407 			if (inp->inp_vflag & INP_IPV4) {
408 				inetprint("local", &inp->inp_laddr,
409 				    (int)inp->inp_lport, name, 1, af1);
410 				if (!Lflag)
411 					inetprint("remote", &inp->inp_faddr,
412 					    (int)inp->inp_fport, name, 0, af1);
413 			}
414 #ifdef INET6
415 			else if (inp->inp_vflag & INP_IPV6) {
416 				inet6print("local", &inp->in6p_laddr,
417 				    (int)inp->inp_lport, name, 1);
418 				if (!Lflag)
419 					inet6print("remote", &inp->in6p_faddr,
420 					    (int)inp->inp_fport, name, 0);
421 			} /* else nothing printed now */
422 #endif /* INET6 */
423 		} else {
424 			if (inp->inp_vflag & INP_IPV4) {
425 				inetprint("local", &inp->inp_laddr,
426 				    (int)inp->inp_lport, name, 0, af1);
427 				if (!Lflag)
428 					inetprint("remote", &inp->inp_faddr,
429 					    (int)inp->inp_fport, name,
430 					    inp->inp_lport != inp->inp_fport,
431 					    af1);
432 			}
433 #ifdef INET6
434 			else if (inp->inp_vflag & INP_IPV6) {
435 				inet6print("local", &inp->in6p_laddr,
436 				    (int)inp->inp_lport, name, 0);
437 				if (!Lflag)
438 					inet6print("remote", &inp->in6p_faddr,
439 					    (int)inp->inp_fport, name,
440 					    inp->inp_lport != inp->inp_fport);
441 			} /* else nothing printed now */
442 #endif /* INET6 */
443 		}
444 		if (xflag) {
445 			xo_emit("{:receive-mbufs/%6u} {:send-mbufs/%6u} "
446 			    "{:receive-clusters/%6u} {:send-clusters/%6u} "
447 			    "{:receive-high-water/%6u} {:send-high-water/%6u} "
448 			    "{:receive-low-water/%6u} {:send-low-water/%6u} "
449 			    "{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
450 			    "{:receive-mbuf-bytes-max/%6u} "
451 			    "{:send-mbuf-bytes-max/%6u}",
452 			    so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
453 			    so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
454 			    so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
455 			    so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
456 			    so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
457 			    so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
458 			if (istcp)
459 				xo_emit(" {:retransmit-timer/%4d.%02d} "
460 				    "{:persist-timer/%4d.%02d} "
461 				    "{:keepalive-timer/%4d.%02d} "
462 				    "{:msl2-timer/%4d.%02d} "
463 				    "{:delay-ack-timer/%4d.%02d} "
464 				    "{:inactivity-timer/%4d.%02d}",
465 				    tp->tt_rexmt / 1000,
466 				    (tp->tt_rexmt % 1000) / 10,
467 				    tp->tt_persist / 1000,
468 				    (tp->tt_persist % 1000) / 10,
469 				    tp->tt_keep / 1000,
470 				    (tp->tt_keep % 1000) / 10,
471 				    tp->tt_2msl / 1000,
472 				    (tp->tt_2msl % 1000) / 10,
473 				    tp->tt_delack / 1000,
474 				    (tp->tt_delack % 1000) / 10,
475 				    tp->t_rcvtime / 1000,
476 				    (tp->t_rcvtime % 1000) / 10);
477 		}
478 		if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
479 			if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
480 				xo_emit("{:tcp-state/%d}", tp->t_state);
481 			else {
482 				xo_emit("{:tcp-state/%s}",
483 				    tcpstates[tp->t_state]);
484 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
485 				/* Show T/TCP `hidden state' */
486 				if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
487 					xo_emit("{:need-syn-or-fin/*}");
488 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
489 			}
490 		}
491 		if (Rflag) {
492 			/* XXX: is this right Alfred */
493 			xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
494 			    inp->inp_flowid,
495 			    inp->inp_flowtype);
496 		}
497 		xo_emit("\n");
498 		xo_close_instance("socket");
499 	}
500 	if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
501 		if (oxig->xig_count > xig->xig_count) {
502 			xo_emit("Some {d:lost/%s} sockets may have been "
503 			    "deleted.\n", name);
504 		} else if (oxig->xig_count < xig->xig_count) {
505 			xo_emit("Some {d:created/%s} sockets may have been "
506 			    "created.\n", name);
507 		} else {
508 			xo_emit("Some {d:changed/%s} sockets may have been "
509 			    "created or deleted.\n", name);
510 		}
511 	}
512 	free(buf);
513 }
514 
515 /*
516  * Dump TCP statistics structure.
517  */
518 void
519 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
520 {
521 	struct tcpstat tcpstat;
522 	uint64_t tcps_states[TCP_NSTATES];
523 
524 #ifdef INET6
525 	if (tcp_done != 0)
526 		return;
527 	else
528 		tcp_done = 1;
529 #endif
530 
531 	if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
532 	    sizeof(tcpstat), kread_counters) != 0)
533 		return;
534 
535 	if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
536 	    &tcps_states, sizeof(tcps_states), kread_counters) != 0)
537 		return;
538 
539 	xo_open_container("tcp");
540 	xo_emit("{T:/%s}:\n", name);
541 
542 #define	p(f, m) if (tcpstat.f || sflag <= 1)				\
543 	xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
544 #define	p1a(f, m) if (tcpstat.f || sflag <= 1)				\
545 	xo_emit(m, (uintmax_t )tcpstat.f)
546 #define	p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)	\
547 	xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),		\
548 	    (uintmax_t )tcpstat.f2, plural(tcpstat.f2))
549 #define	p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1)	\
550 	xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1),		\
551 	    (uintmax_t )tcpstat.f2)
552 #define	p3(f, m) if (tcpstat.f || sflag <= 1)				\
553 	xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
554 
555 	p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
556 	p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
557 	    "{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
558 	p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
559 	    "{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
560 	    "({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
561 	    "{N:retransmitted}\n");
562 	p(tcps_sndrexmitbad, "\t\t"
563 	    "{:sent-unnecessary-retransmitted-packets/%ju} "
564 	    "{N:/data packet%s unnecessarily retransmitted}\n");
565 	p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
566 	    "{N:/resend%s initiated by MTU discovery}\n");
567 	p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
568 	    "{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
569 	    "{N:delayed})\n");
570 	p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
571 	    "{N:/URG only packet%s}\n");
572 	p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
573 	    "{N:/window probe packet%s}\n");
574 	p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
575 	    "{N:/window update packet%s}\n");
576 	p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
577 	    "{N:/control packet%s}\n");
578 	p(tcps_rcvtotal, "\t{:received-packets/%ju} "
579 	    "{N:/packet%s received}\n");
580 	p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
581 	    "{:received-ack-packets/%ju} {N:/ack%s} "
582 	    "{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
583 	p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
584 	    "{N:/duplicate ack%s}\n");
585 	p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-unsent-data/%ju} "
586 	    "{N:/ack%s for unsent data}\n");
587 	p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
588 	    "{:received-in-sequence-packets/%ju} {N:/packet%s} "
589 	    "({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
590 	    "{N:received in-sequence}\n");
591 	p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
592 	    "{:received-completely-duplicate-packets/%ju} "
593 	    "{N:/completely duplicate packet%s} "
594 	    "({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
595 	p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
596 	    "{N:/old duplicate packet%s}\n");
597 	p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
598 	    "{:received-some-duplicate-packets/%ju} "
599 	    "{N:/packet%s with some dup. data} "
600 	    "({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
601 	p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
602 	    "{N:/out-of-order packet%s} "
603 	    "({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
604 	p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
605 	    "{:received-after-window-packets/%ju} {N:/packet%s} "
606 	    "({:received-after-window-bytes/%ju} {N:/byte%s}) "
607 	    "{N:of data after window}\n");
608 	p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
609 	    "{N:/window probe%s}\n");
610 	p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
611 	    "{N:/window update packet%s}\n");
612 	p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
613 	    "{N:/packet%s received after close}\n");
614 	p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
615 	    "{N:/discarded for bad checksum%s}\n");
616 	p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
617 	    "{N:/discarded for bad header offset field%s}\n");
618 	p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
619 	    "{N:discarded because packet too short}\n");
620 	p1a(tcps_rcvmemdrop, "\t\t{:discard-memory-problems/%ju} "
621 	    "{N:discarded due to memory problems}\n");
622 	p(tcps_connattempt, "\t{:connection-requests/%ju} "
623 	    "{N:/connection request%s}\n");
624 	p(tcps_accepts, "\t{:connections-accepts/%ju} "
625 	    "{N:/connection accept%s}\n");
626 	p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
627 	    "{N:/bad connection attempt%s}\n");
628 	p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
629 	    "{N:/listen queue overflow%s}\n");
630 	p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
631 	    "{N:/ignored RSTs in the window%s}\n");
632 	p(tcps_connects, "\t{:connections-established/%ju} "
633 	    "{N:/connection%s established (including accepts)}\n");
634 	p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
635 	    "{N:/time%s used RTT from hostcache}\n");
636 	p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
637 	    "{N:/time%s used RTT variance from hostcache}\n");
638 	p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
639 	    "{N:/time%s used slow-start threshold from hostcache}\n");
640 	p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
641 	    "{N:/connection%s closed (including} "
642 	    "{:connection-drops/%ju} {N:/drop%s})\n");
643 	p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
644 	    "{N:/connection%s updated cached RTT on close}\n");
645 	p(tcps_cachedrttvar, "\t\t"
646 	    "{:connections-updated-variance-on-close/%ju} "
647 	    "{N:/connection%s updated cached RTT variance on close}\n");
648 	p(tcps_cachedssthresh, "\t\t"
649 	    "{:connections-updated-ssthresh-on-close/%ju} "
650 	    "{N:/connection%s updated cached ssthresh on close}\n");
651 	p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
652 	    "{N:/embryonic connection%s dropped}\n");
653 	p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
654 	    "{N:/segment%s updated rtt (of} "
655 	    "{:segment-update-attempts/%ju} {N:/attempt%s})\n");
656 	p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
657 	    "{N:/retransmit timeout%s}\n");
658 	p(tcps_timeoutdrop, "\t\t"
659 	    "{:connections-dropped-by-retransmit-timeout/%ju} "
660 	    "{N:/connection%s dropped by rexmit timeout}\n");
661 	p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
662 	    "{N:/persist timeout%s}\n");
663 	p(tcps_persistdrop, "\t\t"
664 	    "{:connections-dropped-by-persist-timeout/%ju} "
665 	    "{N:/connection%s dropped by persist timeout}\n");
666 	p(tcps_finwait2_drops, "\t"
667 	    "{:connections-dropped-by-finwait2-timeout/%ju} "
668 	    "{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
669 	p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
670 	    "{N:/keepalive timeout%s}\n");
671 	p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
672 	    "{N:/keepalive probe%s sent}\n");
673 	p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
674 	    "{N:/connection%s dropped by keepalive}\n");
675 	p(tcps_predack, "\t{:ack-header-predictions/%ju} "
676 	    "{N:/correct ACK header prediction%s}\n");
677 	p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
678 	    "{N:/correct data packet header prediction%s}\n");
679 
680 	xo_open_container("syncache");
681 
682 	p3(tcps_sc_added, "\t{:entries-added/%ju} "
683 	    "{N:/syncache entr%s added}\n");
684 	p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
685 	    "{N:/retransmitted}\n");
686 	p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
687 	p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
688 	p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
689 	p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
690 	    "{N:/bucket overflow}\n");
691 	p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
692 	    "{N:/cache overflow}\n");
693 	p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
694 	p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
695 	p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
696 	p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
697 	p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
698 	p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
699 	p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
700 	p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
701 	    "{N:/cookie%s received}\n");
702 
703 	xo_close_container("syncache");
704 
705 	xo_open_container("hostcache");
706 
707 	p3(tcps_hc_added, "\t{:entries-added/%ju} "
708 	    "{N:/hostcache entr%s added}\n");
709 	p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
710 	    "{N:/bucket overflow}\n");
711 
712 	xo_close_container("hostcache");
713 
714 	xo_open_container("sack");
715 
716 	p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
717 	    "{N:/SACK recovery episode%s}\n");
718  	p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
719 	    "{N:/segment rexmit%s in SACK recovery episodes}\n");
720  	p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
721 	    "{N:/byte rexmit%s in SACK recovery episodes}\n");
722  	p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
723 	    "{N:/SACK option%s (SACK blocks) received}\n");
724 	p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
725 	    "{N:/SACK option%s (SACK blocks) sent}\n");
726 	p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
727 	    "{N:/SACK scoreboard overflow}\n");
728 
729 	xo_close_container("sack");
730 	xo_open_container("ecn");
731 
732 	p(tcps_ecn_ce, "\t{:ce-packets/%ju} "
733 	    "{N:/packet%s with ECN CE bit set}\n");
734 	p(tcps_ecn_ect0, "\t{:ect0-packets/%ju} "
735 	    "{N:/packet%s with ECN ECT(0) bit set}\n");
736 	p(tcps_ecn_ect1, "\t{:ect1-packets/%ju} "
737 	    "{N:/packet%s with ECN ECT(1) bit set}\n");
738 	p(tcps_ecn_shs, "\t{:handshakes/%ju} "
739 	    "{N:/successful ECN handshake%s}\n");
740 	p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
741 	    "{N:/time%s ECN reduced the congestion window}\n");
742 
743 	xo_close_container("ecn");
744 	xo_open_container("tcp-signature");
745 	p(tcps_sig_rcvgoodsig, "\t{:received-good-signature/%ju} "
746 	    "{N:/packet%s with matching signature received}\n");
747 	p(tcps_sig_rcvbadsig, "\t{:received-bad-signature/%ju} "
748 	    "{N:/packet%s with bad signature received}\n");
749 	p(tcps_sig_err_buildsig, "\t{:failed-make-signature/%ju} "
750 	    "{N:/time%s failed to make signature due to no SA}\n");
751 	p(tcps_sig_err_sigopt, "\t{:no-signature-expected/%ju} "
752 	    "{N:/time%s unexpected signature received}\n");
753 	p(tcps_sig_err_nosigopt, "\t{:no-signature-provided/%ju} "
754 	    "{N:/time%s no signature provided by segment}\n");
755  #undef p
756  #undef p1a
757  #undef p2
758  #undef p2a
759  #undef p3
760 	xo_close_container("tcp-signature");
761 
762 	xo_open_container("TCP connection count by state");
763 	xo_emit("{T:/TCP connection count by state}:\n");
764 	for (int i = 0; i < TCP_NSTATES; i++) {
765 		/*
766 		 * XXXGL: is there a way in libxo to use %s
767 		 * in the "content string" of a format
768 		 * string? I failed to do that, that's why
769 		 * a temporary buffer is used to construct
770 		 * format string for xo_emit().
771 		 */
772 		char fmtbuf[80];
773 
774 		if (sflag > 1 && tcps_states[i] == 0)
775 			continue;
776 		snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
777                     "{Np:/connection ,connections} in %s state\n",
778 		    tcpstates[i], tcpstates[i]);
779 		xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
780 	}
781 	xo_close_container("TCP connection count by state");
782 
783 	xo_close_container("tcp");
784 }
785 
786 /*
787  * Dump UDP statistics structure.
788  */
789 void
790 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
791 {
792 	struct udpstat udpstat;
793 	uint64_t delivered;
794 
795 #ifdef INET6
796 	if (udp_done != 0)
797 		return;
798 	else
799 		udp_done = 1;
800 #endif
801 
802 	if (fetch_stats("net.inet.udp.stats", off, &udpstat,
803 	    sizeof(udpstat), kread_counters) != 0)
804 		return;
805 
806 	xo_open_container("udp");
807 	xo_emit("{T:/%s}:\n", name);
808 
809 #define	p(f, m) if (udpstat.f || sflag <= 1) \
810 	xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
811 #define	p1a(f, m) if (udpstat.f || sflag <= 1) \
812 	xo_emit("\t" m, (uintmax_t)udpstat.f)
813 
814 	p(udps_ipackets, "{:received-datagrams/%ju} "
815 	    "{N:/datagram%s received}\n");
816 	p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
817 	    "{N:/with incomplete header}\n");
818 	p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
819 	    "{N:/with bad data length field}\n");
820 	p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
821 	    "{N:/with bad checksum}\n");
822 	p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
823 	    "{N:/with no checksum}\n");
824 	p1a(udps_noport, "{:dropped-no-socket/%ju} "
825 	    "{N:/dropped due to no socket}\n");
826 	p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
827 	    "{N:/broadcast\\/multicast datagram%s undelivered}\n");
828 	p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
829 	    "{N:/dropped due to full socket buffers}\n");
830 	p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
831 	    "{N:/not for hashed pcb}\n");
832 	delivered = udpstat.udps_ipackets -
833 		    udpstat.udps_hdrops -
834 		    udpstat.udps_badlen -
835 		    udpstat.udps_badsum -
836 		    udpstat.udps_noport -
837 		    udpstat.udps_noportbcast -
838 		    udpstat.udps_fullsock;
839 	if (delivered || sflag <= 1)
840 		xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
841 		    (uint64_t)delivered);
842 	p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
843 	/* the next statistic is cumulative in udps_noportbcast */
844 	p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
845 	    "{N:/time%s multicast source filter matched}\n");
846 #undef p
847 #undef p1a
848 	xo_close_container("udp");
849 }
850 
851 /*
852  * Dump CARP statistics structure.
853  */
854 void
855 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
856 {
857 	struct carpstats carpstat;
858 
859 	if (fetch_stats("net.inet.carp.stats", off, &carpstat,
860 	    sizeof(carpstat), kread_counters) != 0)
861 		return;
862 
863 	xo_open_container(name);
864 	xo_emit("{T:/%s}:\n", name);
865 
866 #define	p(f, m) if (carpstat.f || sflag <= 1) \
867 	xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
868 #define	p2(f, m) if (carpstat.f || sflag <= 1) \
869 	xo_emit(m, (uintmax_t)carpstat.f)
870 
871 	p(carps_ipackets, "\t{:received-inet-packets/%ju} "
872 	    "{N:/packet%s received (IPv4)}\n");
873 	p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
874 	    "{N:/packet%s received (IPv6)}\n");
875 	p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
876 	    "{N:/packet%s discarded for wrong TTL}\n");
877 	p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
878 	    "{N:/packet%s shorter than header}\n");
879 	p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
880 	    "{N:/discarded for bad checksum%s}\n");
881 	p(carps_badver,	"\t\t{:dropped-bad-version/%ju} "
882 	    "{N:/discarded packet%s with a bad version}\n");
883 	p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
884 	    "{N:/discarded because packet too short}\n");
885 	p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
886 	    "{N:/discarded for bad authentication}\n");
887 	p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
888 	    "{N:/discarded for bad vhid}\n");
889 	p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
890 	    "{N:/discarded because of a bad address list}\n");
891 	p(carps_opackets, "\t{:sent-inet-packets/%ju} "
892 	    "{N:/packet%s sent (IPv4)}\n");
893 	p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
894 	    "{N:/packet%s sent (IPv6)}\n");
895 	p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
896 	    "{N:/send failed due to mbuf memory error}\n");
897 #if notyet
898 	p(carps_ostates, "\t\t{:send-state-updates/%s} "
899 	    "{N:/state update%s sent}\n");
900 #endif
901 #undef p
902 #undef p2
903 	xo_close_container(name);
904 }
905 
906 /*
907  * Dump IP statistics structure.
908  */
909 void
910 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
911 {
912 	struct ipstat ipstat;
913 
914 	if (fetch_stats("net.inet.ip.stats", off, &ipstat,
915 	    sizeof(ipstat), kread_counters) != 0)
916 		return;
917 
918 	xo_open_container(name);
919 	xo_emit("{T:/%s}:\n", name);
920 
921 #define	p(f, m) if (ipstat.f || sflag <= 1) \
922 	xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
923 #define	p1a(f, m) if (ipstat.f || sflag <= 1) \
924 	xo_emit(m, (uintmax_t )ipstat.f)
925 
926 	p(ips_total, "\t{:received-packets/%ju} "
927 	    "{N:/total packet%s received}\n");
928 	p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
929 	    "{N:/bad header checksum%s}\n");
930 	p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
931 	    "{N:/with size smaller than minimum}\n");
932 	p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
933 	    "{N:/with data size < data length}\n");
934 	p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
935 	    "{N:/with ip length > max ip packet size}\n");
936 	p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
937 	    "{N:/with header length < data size}\n");
938 	p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
939 	    "{N:/with data length < header length}\n");
940 	p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
941 	    "{N:/with bad options}\n");
942 	p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
943 	    "{N:/with incorrect version number}\n");
944 	p(ips_fragments, "\t{:received-fragments/%ju} "
945 	    "{N:/fragment%s received}\n");
946 	p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
947 	    "{N:/fragment%s dropped (dup or out of space)}\n");
948 	p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
949 	    "{N:/fragment%s dropped after timeout}\n");
950 	p(ips_reassembled, "\t{:reassembled-packets/%ju} "
951 	    "{N:/packet%s reassembled ok}\n");
952 	p(ips_delivered, "\t{:received-local-packets/%ju} "
953 	    "{N:/packet%s for this host}\n");
954 	p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
955 	    "{N:/packet%s for unknown\\/unsupported protocol}\n");
956 	p(ips_forward, "\t{:forwarded-packets/%ju} "
957 	    "{N:/packet%s forwarded}");
958 	p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
959 	    "{N:/packet%s fast forwarded})");
960 	if (ipstat.ips_forward || sflag <= 1)
961 		xo_emit("\n");
962 	p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
963 	    "{N:/packet%s not forwardable}\n");
964 	p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
965 	    "{N:/packet%s received for unknown multicast group}\n");
966 	p(ips_redirectsent, "\t{:redirects-sent/%ju} "
967 	    "{N:/redirect%s sent}\n");
968 	p(ips_localout, "\t{:sent-packets/%ju} "
969 	    "{N:/packet%s sent from this host}\n");
970 	p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
971 	    "{N:/packet%s sent with fabricated ip header}\n");
972 	p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
973 	    "{N:/output packet%s dropped due to no bufs, etc.}\n");
974 	p(ips_noroute, "\t{:discard-no-route/%ju} "
975 	    "{N:/output packet%s discarded due to no route}\n");
976 	p(ips_fragmented, "\t{:sent-fragments/%ju} "
977 	    "{N:/output datagram%s fragmented}\n");
978 	p(ips_ofragments, "\t{:fragments-created/%ju} "
979 	    "{N:/fragment%s created}\n");
980 	p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
981 	    "{N:/datagram%s that can't be fragmented}\n");
982 	p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
983 	    "{N:/tunneling packet%s that can't find gif}\n");
984 	p(ips_badaddr, "\t{:discard-bad-address/%ju} "
985 	    "{N:/datagram%s with bad address in header}\n");
986 #undef p
987 #undef p1a
988 	xo_close_container(name);
989 }
990 
991 /*
992  * Dump ARP statistics structure.
993  */
994 void
995 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
996 {
997 	struct arpstat arpstat;
998 
999 	if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
1000 	    sizeof(arpstat), kread_counters) != 0)
1001 		return;
1002 
1003 	xo_open_container(name);
1004 	xo_emit("{T:/%s}:\n", name);
1005 
1006 #define	p(f, m) if (arpstat.f || sflag <= 1) \
1007 	xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
1008 #define	p2(f, m) if (arpstat.f || sflag <= 1) \
1009 	xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
1010 
1011 	p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
1012 	p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
1013 	p(rxrequests, "{:received-requests/%ju} "
1014 	    "{N:/ARP request%s received}\n");
1015 	p2(rxreplies, "{:received-replies/%ju} "
1016 	    "{N:/ARP repl%s received}\n");
1017 	p(received, "{:received-packers/%ju} "
1018 	    "{N:/ARP packet%s received}\n");
1019 	p(dropped, "{:dropped-no-entry/%ju} "
1020 	    "{N:/total packet%s dropped due to no ARP entry}\n");
1021 	p(timeouts, "{:entries-timeout/%ju} "
1022 	    "{N:/ARP entry%s timed out}\n");
1023 	p(dupips, "{:dropped-duplicate-address/%ju} "
1024 	    "{N:/Duplicate IP%s seen}\n");
1025 #undef p
1026 #undef p2
1027 	xo_close_container(name);
1028 }
1029 
1030 
1031 
1032 static	const char *icmpnames[ICMP_MAXTYPE + 1] = {
1033 	"echo reply",			/* RFC 792 */
1034 	"#1",
1035 	"#2",
1036 	"destination unreachable",	/* RFC 792 */
1037 	"source quench",		/* RFC 792 */
1038 	"routing redirect",		/* RFC 792 */
1039 	"#6",
1040 	"#7",
1041 	"echo",				/* RFC 792 */
1042 	"router advertisement",		/* RFC 1256 */
1043 	"router solicitation",		/* RFC 1256 */
1044 	"time exceeded",		/* RFC 792 */
1045 	"parameter problem",		/* RFC 792 */
1046 	"time stamp",			/* RFC 792 */
1047 	"time stamp reply",		/* RFC 792 */
1048 	"information request",		/* RFC 792 */
1049 	"information request reply",	/* RFC 792 */
1050 	"address mask request",		/* RFC 950 */
1051 	"address mask reply",		/* RFC 950 */
1052 	"#19",
1053 	"#20",
1054 	"#21",
1055 	"#22",
1056 	"#23",
1057 	"#24",
1058 	"#25",
1059 	"#26",
1060 	"#27",
1061 	"#28",
1062 	"#29",
1063 	"icmp traceroute",		/* RFC 1393 */
1064 	"datagram conversion error",	/* RFC 1475 */
1065 	"mobile host redirect",
1066 	"IPv6 where-are-you",
1067 	"IPv6 i-am-here",
1068 	"mobile registration req",
1069 	"mobile registration reply",
1070 	"domain name request",		/* RFC 1788 */
1071 	"domain name reply",		/* RFC 1788 */
1072 	"icmp SKIP",
1073 	"icmp photuris",		/* RFC 2521 */
1074 };
1075 
1076 /*
1077  * Dump ICMP statistics.
1078  */
1079 void
1080 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1081 {
1082 	struct icmpstat icmpstat;
1083 	size_t len;
1084 	int i, first;
1085 
1086 	if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
1087 	    sizeof(icmpstat), kread_counters) != 0)
1088 		return;
1089 
1090 	xo_open_container(name);
1091 	xo_emit("{T:/%s}:\n", name);
1092 
1093 #define	p(f, m) if (icmpstat.f || sflag <= 1) \
1094 	xo_emit(m, icmpstat.f, plural(icmpstat.f))
1095 #define	p1a(f, m) if (icmpstat.f || sflag <= 1) \
1096 	xo_emit(m, icmpstat.f)
1097 #define	p2(f, m) if (icmpstat.f || sflag <= 1) \
1098 	xo_emit(m, icmpstat.f, plurales(icmpstat.f))
1099 
1100 	p(icps_error, "\t{:icmp-calls/%lu} "
1101 	    "{N:/call%s to icmp_error}\n");
1102 	p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
1103 	    "{N:/error%s not generated in response to an icmp message}\n");
1104 
1105 	for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1106 		if (icmpstat.icps_outhist[i] != 0) {
1107 			if (first) {
1108 				xo_open_list("output-histogram");
1109 				xo_emit("\tOutput histogram:\n");
1110 				first = 0;
1111 			}
1112 			xo_open_instance("output-histogram");
1113 			if (icmpnames[i] != NULL)
1114 				xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1115 				    icmpnames[i], icmpstat.icps_outhist[i]);
1116 			else
1117 				xo_emit("\t\tunknown ICMP #{k:name/%d}: "
1118 				    "{:count/%lu}\n",
1119 				    i, icmpstat.icps_outhist[i]);
1120 			xo_close_instance("output-histogram");
1121 		}
1122 	}
1123 	if (!first)
1124 		xo_close_list("output-histogram");
1125 
1126 	p(icps_badcode, "\t{:dropped-bad-code/%lu} "
1127 	    "{N:/message%s with bad code fields}\n");
1128 	p(icps_tooshort, "\t{:dropped-too-short/%lu} "
1129 	    "{N:/message%s less than the minimum length}\n");
1130 	p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
1131 	    "{N:/message%s with bad checksum}\n");
1132 	p(icps_badlen, "\t{:dropped-bad-length/%lu} "
1133 	    "{N:/message%s with bad length}\n");
1134 	p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
1135 	    "{N:/multicast echo requests ignored}\n");
1136 	p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
1137 	    "{N:/multicast timestamp requests ignored}\n");
1138 
1139 	for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1140 		if (icmpstat.icps_inhist[i] != 0) {
1141 			if (first) {
1142 				xo_open_list("input-histogram");
1143 				xo_emit("\tInput histogram:\n");
1144 				first = 0;
1145 			}
1146 			xo_open_instance("input-histogram");
1147 			if (icmpnames[i] != NULL)
1148 				xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1149 					icmpnames[i],
1150 					icmpstat.icps_inhist[i]);
1151 			else
1152 				xo_emit(
1153 			"\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
1154 					i, icmpstat.icps_inhist[i]);
1155 			xo_close_instance("input-histogram");
1156 		}
1157 	}
1158 	if (!first)
1159 		xo_close_list("input-histogram");
1160 
1161 	p(icps_reflect, "\t{:sent-packets/%lu} "
1162 	    "{N:/message response%s generated}\n");
1163 	p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
1164 	    "{N:/invalid return address%s}\n");
1165 	p(icps_noroute, "\t{:discard-no-route/%lu} "
1166 	    "{N:/no return route%s}\n");
1167 #undef p
1168 #undef p1a
1169 #undef p2
1170 	if (live) {
1171 		len = sizeof i;
1172 		if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1173 		    0)
1174 			return;
1175 		xo_emit("\tICMP address mask responses are "
1176 		    "{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
1177 	}
1178 
1179 	xo_close_container(name);
1180 }
1181 
1182 /*
1183  * Dump IGMP statistics structure.
1184  */
1185 void
1186 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1187 {
1188 	struct igmpstat igmpstat;
1189 
1190 	if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1191 	    sizeof(igmpstat), kread) != 0)
1192 		return;
1193 
1194 	if (igmpstat.igps_version != IGPS_VERSION_3) {
1195 		xo_warnx("%s: version mismatch (%d != %d)", __func__,
1196 		    igmpstat.igps_version, IGPS_VERSION_3);
1197 	}
1198 	if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1199 		xo_warnx("%s: size mismatch (%d != %d)", __func__,
1200 		    igmpstat.igps_len, IGPS_VERSION3_LEN);
1201 	}
1202 
1203 	xo_open_container(name);
1204 	xo_emit("{T:/%s}:\n", name);
1205 
1206 #define	p64(f, m) if (igmpstat.f || sflag <= 1) \
1207 	xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1208 #define	py64(f, m) if (igmpstat.f || sflag <= 1) \
1209 	xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1210 
1211 	p64(igps_rcv_total, "\t{:received-messages/%ju} "
1212 	    "{N:/message%s received}\n");
1213 	p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1214 	    "{N:/message%s received with too few bytes}\n");
1215 	p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
1216 	    "{N:/message%s received with wrong TTL}\n");
1217 	p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1218 	    "{N:/message%s received with bad checksum}\n");
1219 	py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
1220 	    "{N:/V1\\/V2 membership quer%s received}\n");
1221 	py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
1222 	    "{N:/V3 membership quer%s received}\n");
1223 	py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
1224 	    "{N:/membership quer%s received with invalid field(s)}\n");
1225 	py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
1226 	    "{N:/general quer%s received}\n");
1227 	py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
1228 	    "{N:/group quer%s received}\n");
1229 	py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
1230 	    "{N:/group-source quer%s received}\n");
1231 	py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
1232 	    "{N:/group-source quer%s dropped}\n");
1233 	p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
1234 	    "{N:/membership report%s received}\n");
1235 	p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
1236 	    "{N:/membership report%s received with invalid field(s)}\n");
1237 	p64(igps_rcv_ourreports, "\t"
1238 	    "{:received-membership-reports-matching/%ju} "
1239 	    "{N:/membership report%s received for groups to which we belong}"
1240 	    "\n");
1241 	p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
1242 	    "{N:/V3 report%s received without Router Alert}\n");
1243 	p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
1244 	    "{N:/membership report%s sent}\n");
1245 #undef p64
1246 #undef py64
1247 	xo_close_container(name);
1248 }
1249 
1250 /*
1251  * Dump PIM statistics structure.
1252  */
1253 void
1254 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1255     int proto __unused)
1256 {
1257 	struct pimstat pimstat;
1258 
1259 	if (fetch_stats("net.inet.pim.stats", off, &pimstat,
1260 	    sizeof(pimstat), kread_counters) != 0)
1261 		return;
1262 
1263 	xo_open_container(name);
1264 	xo_emit("{T:/%s}:\n", name);
1265 
1266 #define	p(f, m) if (pimstat.f || sflag <= 1) \
1267 	xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1268 #define	py(f, m) if (pimstat.f || sflag <= 1) \
1269 	xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1270 
1271 	p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
1272 	    "{N:/message%s received}\n");
1273 	p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
1274 	    "{N:/byte%s received}\n");
1275 	p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1276 	    "{N:/message%s received with too few bytes}\n");
1277 	p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1278 	    "{N:/message%s received with bad checksum}\n");
1279 	p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1280 	    "{N:/message%s received with bad version}\n");
1281 	p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
1282 	    "{N:/data register message%s received}\n");
1283 	p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
1284 	    "{N:/data register byte%s received}\n");
1285 	p(pims_rcv_registers_wrongiif, "\t"
1286 	    "{:received-data-register-wrong-interface/%ju} "
1287 	    "{N:/data register message%s received on wrong iif}\n");
1288 	p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1289 	    "{N:/bad register%s received}\n");
1290 	p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
1291 	    "{N:/data register message%s sent}\n");
1292 	p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
1293 	    "{N:/data register byte%s sent}\n");
1294 #undef p
1295 #undef py
1296 	xo_close_container(name);
1297 }
1298 
1299 /*
1300  * Pretty print an Internet address (net address + port).
1301  */
1302 void
1303 inetprint(const char *container, struct in_addr *in, int port,
1304     const char *proto, int num_port, const int af1)
1305 {
1306 	struct servent *sp = 0;
1307 	char line[80], *cp;
1308 	int width;
1309 	size_t alen, plen;
1310 
1311 	if (container)
1312 		xo_open_container(container);
1313 
1314 	if (Wflag)
1315 	    snprintf(line, sizeof(line), "%s.", inetname(in));
1316 	else
1317 	    snprintf(line, sizeof(line), "%.*s.",
1318 		(Aflag && !num_port) ? 12 : 16, inetname(in));
1319 	alen = strlen(line);
1320 	cp = line + alen;
1321 	if (!num_port && port)
1322 		sp = getservbyport((int)port, proto);
1323 	if (sp || port == 0)
1324 		snprintf(cp, sizeof(line) - alen,
1325 		    "%.15s ", sp ? sp->s_name : "*");
1326 	else
1327 		snprintf(cp, sizeof(line) - alen,
1328 		    "%d ", ntohs((u_short)port));
1329 	width = (Aflag && !Wflag) ? 18 :
1330 		((!Wflag || af1 == AF_INET) ? 22 : 45);
1331 	if (Wflag)
1332 		xo_emit("{d:target/%-*s} ", width, line);
1333 	else
1334 		xo_emit("{d:target/%-*.*s} ", width, width, line);
1335 
1336 	plen = strlen(cp) - 1;
1337 	alen--;
1338 	xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1339 	    plen, cp);
1340 
1341 	if (container)
1342 		xo_close_container(container);
1343 }
1344 
1345 /*
1346  * Construct an Internet address representation.
1347  * If numeric_addr has been supplied, give
1348  * numeric value, otherwise try for symbolic name.
1349  */
1350 char *
1351 inetname(struct in_addr *inp)
1352 {
1353 	char *cp;
1354 	static char line[MAXHOSTNAMELEN];
1355 	struct hostent *hp;
1356 	struct netent *np;
1357 
1358 	cp = 0;
1359 	if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1360 		int net = inet_netof(*inp);
1361 		int lna = inet_lnaof(*inp);
1362 
1363 		if (lna == INADDR_ANY) {
1364 			np = getnetbyaddr(net, AF_INET);
1365 			if (np)
1366 				cp = np->n_name;
1367 		}
1368 		if (cp == NULL) {
1369 			hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1370 			if (hp) {
1371 				cp = hp->h_name;
1372 				trimdomain(cp, strlen(cp));
1373 			}
1374 		}
1375 	}
1376 	if (inp->s_addr == INADDR_ANY)
1377 		strcpy(line, "*");
1378 	else if (cp) {
1379 		strlcpy(line, cp, sizeof(line));
1380 	} else {
1381 		inp->s_addr = ntohl(inp->s_addr);
1382 #define	C(x)	((u_int)((x) & 0xff))
1383 		snprintf(line, sizeof(line), "%u.%u.%u.%u",
1384 		    C(inp->s_addr >> 24), C(inp->s_addr >> 16),
1385 		    C(inp->s_addr >> 8), C(inp->s_addr));
1386 	}
1387 	return (line);
1388 }
1389