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 #define _WANT_SOCKET
45 #include <sys/socketvar.h>
46 #include <sys/sysctl.h>
47
48 #include <net/route.h>
49 #include <net/if_arp.h>
50 #include <netinet/in.h>
51 #include <netinet/in_systm.h>
52 #include <netinet/ip.h>
53 #include <netinet/ip_carp.h>
54 #ifdef INET6
55 #include <netinet/ip6.h>
56 #endif /* INET6 */
57 #include <netinet/in_pcb.h>
58 #include <netinet/ip_icmp.h>
59 #include <netinet/icmp_var.h>
60 #include <netinet/igmp_var.h>
61 #include <netinet/ip_var.h>
62 #include <netinet/pim_var.h>
63 #include <netinet/tcp.h>
64 #include <netinet/tcpip.h>
65 #include <netinet/tcp_seq.h>
66 #define TCPSTATES
67 #include <netinet/tcp_fsm.h>
68 #include <netinet/tcp_timer.h>
69 #include <netinet/tcp_var.h>
70 #include <netinet/udp.h>
71 #include <netinet/udp_var.h>
72
73 #include <arpa/inet.h>
74 #include <err.h>
75 #include <errno.h>
76 #include <libutil.h>
77 #include <netdb.h>
78 #include <stdint.h>
79 #include <stdio.h>
80 #include <stdlib.h>
81 #include <stdbool.h>
82 #include <string.h>
83 #include <unistd.h>
84 #include <libxo/xo.h>
85 #include "netstat.h"
86 #include "nl_defs.h"
87
88 #define max(a, b) (((a) > (b)) ? (a) : (b))
89
90 #ifdef INET
91 static void inetprint(const char *, struct in_addr *, int, const char *, int,
92 const int);
93 #endif
94 #ifdef INET6
95 static int udp_done, tcp_done, sdp_done;
96 #endif /* INET6 */
97
98 static int
pcblist_sysctl(int proto,const char * name,char ** bufp)99 pcblist_sysctl(int proto, const char *name, char **bufp)
100 {
101 const char *mibvar;
102 char *buf;
103 size_t len;
104
105 switch (proto) {
106 case IPPROTO_TCP:
107 mibvar = "net.inet.tcp.pcblist";
108 break;
109 case IPPROTO_UDP:
110 mibvar = "net.inet.udp.pcblist";
111 break;
112 case IPPROTO_DIVERT:
113 mibvar = "net.inet.divert.pcblist";
114 break;
115 default:
116 mibvar = "net.inet.raw.pcblist";
117 break;
118 }
119 if (strncmp(name, "sdp", 3) == 0)
120 mibvar = "net.inet.sdp.pcblist";
121 len = 0;
122 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
123 if (errno != ENOENT)
124 xo_warn("sysctl: %s", mibvar);
125 return (0);
126 }
127 if ((buf = malloc(len)) == NULL) {
128 xo_warnx("malloc %lu bytes", (u_long)len);
129 return (0);
130 }
131 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
132 xo_warn("sysctl: %s", mibvar);
133 free(buf);
134 return (0);
135 }
136 *bufp = buf;
137 return (1);
138 }
139
140 /*
141 * Copied directly from uipc_socket2.c. We leave out some fields that are in
142 * nested structures that aren't used to avoid extra work.
143 */
144 static void
sbtoxsockbuf(struct sockbuf * sb,struct xsockbuf * xsb)145 sbtoxsockbuf(struct sockbuf *sb, struct xsockbuf *xsb)
146 {
147 xsb->sb_cc = sb->sb_ccc;
148 xsb->sb_hiwat = sb->sb_hiwat;
149 xsb->sb_mbcnt = sb->sb_mbcnt;
150 xsb->sb_mcnt = sb->sb_mcnt;
151 xsb->sb_ccnt = sb->sb_ccnt;
152 xsb->sb_mbmax = sb->sb_mbmax;
153 xsb->sb_lowat = sb->sb_lowat;
154 xsb->sb_flags = sb->sb_flags;
155 xsb->sb_timeo = sb->sb_timeo;
156 }
157
158 int
sotoxsocket(struct socket * so,struct xsocket * xso)159 sotoxsocket(struct socket *so, struct xsocket *xso)
160 {
161 struct protosw proto;
162 struct domain domain;
163
164 bzero(xso, sizeof *xso);
165 xso->xso_len = sizeof *xso;
166 xso->xso_so = (uintptr_t)so;
167 xso->so_type = so->so_type;
168 xso->so_options = so->so_options;
169 xso->so_linger = so->so_linger;
170 xso->so_state = so->so_state;
171 xso->so_pcb = (uintptr_t)so->so_pcb;
172 if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
173 return (-1);
174 xso->xso_protocol = proto.pr_protocol;
175 if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
176 return (-1);
177 xso->xso_family = domain.dom_family;
178 xso->so_timeo = so->so_timeo;
179 xso->so_error = so->so_error;
180 if ((so->so_options & SO_ACCEPTCONN) != 0) {
181 xso->so_qlen = so->sol_qlen;
182 xso->so_incqlen = so->sol_incqlen;
183 xso->so_qlimit = so->sol_qlimit;
184 } else {
185 sbtoxsockbuf(&so->so_snd, &xso->so_snd);
186 sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
187 xso->so_oobmark = so->so_oobmark;
188 }
189 return (0);
190 }
191
192 /*
193 * Print a summary of connections related to an Internet
194 * protocol. For TCP, also give state of connection.
195 * Listening processes (aflag) are suppressed unless the
196 * -a (all) flag is specified.
197 */
198 void
protopr(u_long off,const char * name,int af1,int proto)199 protopr(u_long off, const char *name, int af1, int proto)
200 {
201 static int first = 1;
202 int istcp;
203 char *buf;
204 const char *vchar;
205 struct xtcpcb *tp;
206 struct xinpcb *inp;
207 struct xinpgen *xig, *oxig;
208 struct xsocket *so;
209 int fnamelen, cnamelen;
210
211 istcp = 0;
212 switch (proto) {
213 case IPPROTO_TCP:
214 #ifdef INET6
215 if (strncmp(name, "sdp", 3) != 0) {
216 if (tcp_done != 0)
217 return;
218 else
219 tcp_done = 1;
220 } else {
221 if (sdp_done != 0)
222 return;
223 else
224 sdp_done = 1;
225 }
226 #endif
227 istcp = 1;
228 break;
229 case IPPROTO_UDP:
230 #ifdef INET6
231 if (udp_done != 0)
232 return;
233 else
234 udp_done = 1;
235 #endif
236 break;
237 }
238
239 if (!pcblist_sysctl(proto, name, &buf))
240 return;
241
242 if (cflag || Cflag) {
243 fnamelen = strlen("Stack");
244 cnamelen = strlen("CC");
245 oxig = xig = (struct xinpgen *)buf;
246 for (xig = (struct xinpgen*)((char *)xig + xig->xig_len);
247 xig->xig_len > sizeof(struct xinpgen);
248 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
249 if (istcp) {
250 tp = (struct xtcpcb *)xig;
251 inp = &tp->xt_inp;
252 } else {
253 continue;
254 }
255 if (so->xso_protocol != proto)
256 continue;
257 if (inp->inp_gencnt > oxig->xig_gen)
258 continue;
259 fnamelen = max(fnamelen, (int)strlen(tp->xt_stack));
260 cnamelen = max(cnamelen, (int)strlen(tp->xt_cc));
261 }
262 }
263
264 oxig = xig = (struct xinpgen *)buf;
265 for (xig = (struct xinpgen *)((char *)xig + xig->xig_len);
266 xig->xig_len > sizeof(struct xinpgen);
267 xig = (struct xinpgen *)((char *)xig + xig->xig_len)) {
268 if (istcp) {
269 tp = (struct xtcpcb *)xig;
270 inp = &tp->xt_inp;
271 } else {
272 inp = (struct xinpcb *)xig;
273 }
274 so = &inp->xi_socket;
275
276 /* Ignore sockets for protocols other than the desired one. */
277 if (so->xso_protocol != proto)
278 continue;
279
280 /* Ignore PCBs which were freed during copyout. */
281 if (inp->inp_gencnt > oxig->xig_gen)
282 continue;
283
284 if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
285 #ifdef INET6
286 || (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
287 #endif /* INET6 */
288 || (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
289 #ifdef INET6
290 && (inp->inp_vflag & INP_IPV6) == 0
291 #endif /* INET6 */
292 ))
293 )
294 continue;
295 if (!aflag &&
296 (
297 (istcp && tp->t_state == TCPS_LISTEN)
298 || (af1 == AF_INET &&
299 inp->inp_laddr.s_addr == INADDR_ANY)
300 #ifdef INET6
301 || (af1 == AF_INET6 &&
302 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
303 #endif /* INET6 */
304 || (af1 == AF_UNSPEC &&
305 (((inp->inp_vflag & INP_IPV4) != 0 &&
306 inp->inp_laddr.s_addr == INADDR_ANY)
307 #ifdef INET6
308 || ((inp->inp_vflag & INP_IPV6) != 0 &&
309 IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
310 #endif
311 ))
312 ))
313 continue;
314
315 if (first) {
316 if (!Lflag) {
317 xo_emit("Active Internet connections");
318 if (aflag)
319 xo_emit(" (including servers)");
320 } else
321 xo_emit(
322 "Current listen queue sizes (qlen/incqlen/maxqlen)");
323 xo_emit("\n");
324 if (Aflag)
325 xo_emit("{T:/%-*s} ", 2 * (int)sizeof(void *),
326 "Tcpcb");
327 if (Lflag)
328 xo_emit((Aflag && !Wflag) ?
329 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-18.18s}" :
330 ((!Wflag || af1 == AF_INET) ?
331 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-22.22s}" :
332 "{T:/%-5.5s} {T:/%-32.32s} {T:/%-45.45s}"),
333 "Proto", "Listen", "Local Address");
334 else if (Tflag)
335 xo_emit((Aflag && !Wflag) ?
336 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%s}" :
337 ((!Wflag || af1 == AF_INET) ?
338 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%s}" :
339 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%s}"),
340 "Proto", "Rexmit", "OOORcv", "0-win",
341 "Local Address", "Foreign Address");
342 else {
343 xo_emit((Aflag && !Wflag) ?
344 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-18.18s} {T:/%-18.18s}" :
345 ((!Wflag || af1 == AF_INET) ?
346 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-22.22s} {T:/%-22.22s}" :
347 "{T:/%-5.5s} {T:/%-6.6s} {T:/%-6.6s} {T:/%-45.45s} {T:/%-45.45s}"),
348 "Proto", "Recv-Q", "Send-Q",
349 "Local Address", "Foreign Address");
350 if (!xflag && !Rflag)
351 xo_emit(" {T:/%-11.11s}", "(state)");
352 }
353 if (xflag) {
354 xo_emit(" {T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
355 "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
356 "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s} "
357 "{T:/%-6.6s} {T:/%-6.6s} {T:/%-6.6s}",
358 "R-MBUF", "S-MBUF", "R-CLUS", "S-CLUS",
359 "R-HIWA", "S-HIWA", "R-LOWA", "S-LOWA",
360 "R-BCNT", "S-BCNT", "R-BMAX", "S-BMAX");
361 xo_emit(" {T:/%7.7s} {T:/%7.7s} {T:/%7.7s} "
362 "{T:/%7.7s} {T:/%7.7s} {T:/%7.7s}",
363 "rexmt", "persist", "keep", "2msl",
364 "delack", "rcvtime");
365 } else if (Rflag) {
366 xo_emit(" {T:/%8.8s} {T:/%5.5s}",
367 "flowid", "ftype");
368 }
369 if (cflag) {
370 xo_emit(" {T:/%-*.*s}",
371 fnamelen, fnamelen, "Stack");
372 }
373 if (Cflag)
374 xo_emit(" {T:/%-*.*s} {T:/%10.10s}"
375 " {T:/%10.10s} {T:/%5.5s}"
376 " {T:/%3.3s}", cnamelen,
377 cnamelen, "CC",
378 "cwin",
379 "ssthresh",
380 "MSS",
381 "ECN");
382 if (Pflag)
383 xo_emit(" {T:/%s}", "Log ID");
384 xo_emit("\n");
385 first = 0;
386 }
387 if (Lflag && so->so_qlimit == 0)
388 continue;
389 xo_open_instance("socket");
390 if (Aflag) {
391 if (istcp)
392 xo_emit("{q:address/%*lx} ",
393 2 * (int)sizeof(void *),
394 (u_long)inp->inp_ppcb);
395 else
396 xo_emit("{q:address/%*lx} ",
397 2 * (int)sizeof(void *),
398 (u_long)so->so_pcb);
399 }
400 #ifdef INET6
401 if ((inp->inp_vflag & INP_IPV6) != 0)
402 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
403 "46" : "6";
404 else
405 #endif
406 vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
407 "4" : "";
408 if (istcp && (tp->t_flags & TF_TOE) != 0)
409 xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", "toe", vchar);
410 else
411 xo_emit("{:protocol/%-3.3s%-2.2s/%s%s} ", name, vchar);
412 if (Lflag) {
413 char buf1[33];
414
415 snprintf(buf1, sizeof buf1, "%u/%u/%u", so->so_qlen,
416 so->so_incqlen, so->so_qlimit);
417 xo_emit("{:listen-queue-sizes/%-32.32s} ", buf1);
418 } else if (Tflag) {
419 if (istcp)
420 xo_emit("{:sent-retransmit-packets/%6u} "
421 "{:received-out-of-order-packets/%6u} "
422 "{:sent-zero-window/%6u} ",
423 tp->t_sndrexmitpack, tp->t_rcvoopack,
424 tp->t_sndzerowin);
425 else
426 xo_emit("{P:/%21s}", "");
427 } else {
428 xo_emit("{:receive-bytes-waiting/%6u} "
429 "{:send-bytes-waiting/%6u} ",
430 so->so_rcv.sb_cc, so->so_snd.sb_cc);
431 }
432 if (numeric_port) {
433 #ifdef INET
434 if (inp->inp_vflag & INP_IPV4) {
435 inetprint("local", &inp->inp_laddr,
436 (int)inp->inp_lport, name, 1, af1);
437 if (!Lflag)
438 inetprint("remote", &inp->inp_faddr,
439 (int)inp->inp_fport, name, 1, af1);
440 }
441 #endif
442 #if defined(INET) && defined(INET6)
443 else
444 #endif
445 #ifdef INET6
446 if (inp->inp_vflag & INP_IPV6) {
447 inet6print("local", &inp->in6p_laddr,
448 (int)inp->inp_lport, name, 1);
449 if (!Lflag)
450 inet6print("remote", &inp->in6p_faddr,
451 (int)inp->inp_fport, name, 1);
452 } /* else nothing printed now */
453 #endif /* INET6 */
454 } else if (inp->inp_flags & INP_ANONPORT) {
455 #ifdef INET
456 if (inp->inp_vflag & INP_IPV4) {
457 inetprint("local", &inp->inp_laddr,
458 (int)inp->inp_lport, name, 1, af1);
459 if (!Lflag)
460 inetprint("remote", &inp->inp_faddr,
461 (int)inp->inp_fport, name, 0, 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, 1);
471 if (!Lflag)
472 inet6print("remote", &inp->in6p_faddr,
473 (int)inp->inp_fport, name, 0);
474 } /* else nothing printed now */
475 #endif /* INET6 */
476 } else {
477 #ifdef INET
478 if (inp->inp_vflag & INP_IPV4) {
479 inetprint("local", &inp->inp_laddr,
480 (int)inp->inp_lport, name, 0, af1);
481 if (!Lflag)
482 inetprint("remote", &inp->inp_faddr,
483 (int)inp->inp_fport, name,
484 inp->inp_lport != inp->inp_fport,
485 af1);
486 }
487 #endif
488 #if defined(INET) && defined(INET6)
489 else
490 #endif
491 #ifdef INET6
492 if (inp->inp_vflag & INP_IPV6) {
493 inet6print("local", &inp->in6p_laddr,
494 (int)inp->inp_lport, name, 0);
495 if (!Lflag)
496 inet6print("remote", &inp->in6p_faddr,
497 (int)inp->inp_fport, name,
498 inp->inp_lport != inp->inp_fport);
499 } /* else nothing printed now */
500 #endif /* INET6 */
501 }
502 if (xflag) {
503 xo_emit("{:receive-mbufs/%6u} {:send-mbufs/%6u} "
504 "{:receive-clusters/%6u} {:send-clusters/%6u} "
505 "{:receive-high-water/%6u} {:send-high-water/%6u} "
506 "{:receive-low-water/%6u} {:send-low-water/%6u} "
507 "{:receive-mbuf-bytes/%6u} {:send-mbuf-bytes/%6u} "
508 "{:receive-mbuf-bytes-max/%6u} "
509 "{:send-mbuf-bytes-max/%6u}",
510 so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
511 so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
512 so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
513 so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
514 so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
515 so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
516 if (istcp)
517 xo_emit(" {:retransmit-timer/%4d.%02d} "
518 "{:persist-timer/%4d.%02d} "
519 "{:keepalive-timer/%4d.%02d} "
520 "{:msl2-timer/%4d.%02d} "
521 "{:delay-ack-timer/%4d.%02d} "
522 "{:inactivity-timer/%4d.%02d}",
523 tp->tt_rexmt / 1000,
524 (tp->tt_rexmt % 1000) / 10,
525 tp->tt_persist / 1000,
526 (tp->tt_persist % 1000) / 10,
527 tp->tt_keep / 1000,
528 (tp->tt_keep % 1000) / 10,
529 tp->tt_2msl / 1000,
530 (tp->tt_2msl % 1000) / 10,
531 tp->tt_delack / 1000,
532 (tp->tt_delack % 1000) / 10,
533 tp->t_rcvtime / 1000,
534 (tp->t_rcvtime % 1000) / 10);
535 }
536 if (istcp && !Lflag && !xflag && !Tflag && !Rflag) {
537 if (tp->t_state < 0 || tp->t_state >= TCP_NSTATES)
538 xo_emit("{:tcp-state/%-11d}", tp->t_state);
539 else {
540 xo_emit("{:tcp-state/%-11s}",
541 tcpstates[tp->t_state]);
542 #if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
543 /* Show T/TCP `hidden state' */
544 if (tp->t_flags & (TF_NEEDSYN|TF_NEEDFIN))
545 xo_emit("{:need-syn-or-fin/*}");
546 #endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
547 }
548 }
549 if (Rflag) {
550 /* XXX: is this right Alfred */
551 xo_emit(" {:flow-id/%08x} {:flow-type/%5d}",
552 inp->inp_flowid,
553 inp->inp_flowtype);
554 }
555 if (istcp) {
556 if (cflag)
557 xo_emit(" {:stack/%-*.*s}",
558
559 fnamelen, fnamelen, tp->xt_stack);
560 if (Cflag)
561 xo_emit(" {:cc/%-*.*s}"
562 " {:snd-cwnd/%10lu}"
563 " {:snd-ssthresh/%10lu}"
564 " {:t-maxseg/%5u} {:ecn/%3s}",
565 cnamelen, cnamelen, tp->xt_cc,
566 tp->t_snd_cwnd, tp->t_snd_ssthresh,
567 tp->t_maxseg,
568 (tp->t_state >= TCPS_ESTABLISHED ?
569 (tp->xt_ecn > 0 ?
570 (tp->xt_ecn == 1 ?
571 "ecn" : "ace")
572 : "off")
573 : "n/a"));
574 if (Pflag)
575 xo_emit(" {:log-id/%s}",
576 tp->xt_logid[0] == '\0' ?
577 "-" : tp->xt_logid);
578 }
579 xo_emit("\n");
580 xo_close_instance("socket");
581 }
582 if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
583 if (oxig->xig_count > xig->xig_count) {
584 xo_emit("Some {d:lost/%s} sockets may have been "
585 "deleted.\n", name);
586 } else if (oxig->xig_count < xig->xig_count) {
587 xo_emit("Some {d:created/%s} sockets may have been "
588 "created.\n", name);
589 } else {
590 xo_emit("Some {d:changed/%s} sockets may have been "
591 "created or deleted.\n", name);
592 }
593 }
594 free(buf);
595 }
596
597 /*
598 * Dump TCP statistics structure.
599 */
600 void
tcp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)601 tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
602 {
603 struct tcpstat tcpstat;
604 uint64_t tcps_states[TCP_NSTATES];
605
606 #ifdef INET6
607 if (tcp_done != 0)
608 return;
609 else
610 tcp_done = 1;
611 #endif
612
613 if (fetch_stats("net.inet.tcp.stats", off, &tcpstat,
614 sizeof(tcpstat), kread_counters) != 0)
615 return;
616
617 if (fetch_stats_ro("net.inet.tcp.states", nl[N_TCPS_STATES].n_value,
618 &tcps_states, sizeof(tcps_states), kread_counters) != 0)
619 return;
620
621 xo_open_container("tcp");
622 xo_emit("{T:/%s}:\n", name);
623
624 #define p(f, m) if (tcpstat.f || sflag <= 1) \
625 xo_emit(m, (uintmax_t )tcpstat.f, plural(tcpstat.f))
626 #define p1a(f, m) if (tcpstat.f || sflag <= 1) \
627 xo_emit(m, (uintmax_t )tcpstat.f)
628 #define p2(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
629 xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1), \
630 (uintmax_t )tcpstat.f2, plural(tcpstat.f2))
631 #define p2a(f1, f2, m) if (tcpstat.f1 || tcpstat.f2 || sflag <= 1) \
632 xo_emit(m, (uintmax_t )tcpstat.f1, plural(tcpstat.f1), \
633 (uintmax_t )tcpstat.f2)
634 #define p3(f, m) if (tcpstat.f || sflag <= 1) \
635 xo_emit(m, (uintmax_t )tcpstat.f, pluralies(tcpstat.f))
636
637 p(tcps_sndtotal, "\t{:sent-packets/%ju} {N:/packet%s sent}\n");
638 p2(tcps_sndpack,tcps_sndbyte, "\t\t{:sent-data-packets/%ju} "
639 "{N:/data packet%s} ({:sent-data-bytes/%ju} {N:/byte%s})\n");
640 p2(tcps_sndrexmitpack, tcps_sndrexmitbyte, "\t\t"
641 "{:sent-retransmitted-packets/%ju} {N:/data packet%s} "
642 "({:sent-retransmitted-bytes/%ju} {N:/byte%s}) "
643 "{N:retransmitted}\n");
644 p(tcps_sndrexmitbad, "\t\t"
645 "{:sent-unnecessary-retransmitted-packets/%ju} "
646 "{N:/data packet%s unnecessarily retransmitted}\n");
647 p(tcps_mturesent, "\t\t{:sent-resends-by-mtu-discovery/%ju} "
648 "{N:/resend%s initiated by MTU discovery}\n");
649 p2a(tcps_sndacks, tcps_delack, "\t\t{:sent-ack-only-packets/%ju} "
650 "{N:/ack-only packet%s/} ({:sent-packets-delayed/%ju} "
651 "{N:delayed})\n");
652 p(tcps_sndurg, "\t\t{:sent-urg-only-packets/%ju} "
653 "{N:/URG only packet%s}\n");
654 p(tcps_sndprobe, "\t\t{:sent-window-probe-packets/%ju} "
655 "{N:/window probe packet%s}\n");
656 p(tcps_sndwinup, "\t\t{:sent-window-update-packets/%ju} "
657 "{N:/window update packet%s}\n");
658 p(tcps_sndctrl, "\t\t{:sent-control-packets/%ju} "
659 "{N:/control packet%s}\n");
660 p(tcps_rcvtotal, "\t{:received-packets/%ju} "
661 "{N:/packet%s received}\n");
662 p2(tcps_rcvackpack, tcps_rcvackbyte, "\t\t"
663 "{:received-ack-packets/%ju} {N:/ack%s} "
664 "{N:(for} {:received-ack-bytes/%ju} {N:/byte%s})\n");
665 p(tcps_rcvdupack, "\t\t{:received-duplicate-acks/%ju} "
666 "{N:/duplicate ack%s}\n");
667 p(tcps_tunneled_pkts, "\t\t{:received-udp-tunneled-pkts/%ju} "
668 "{N:/UDP tunneled pkt%s}\n");
669 p(tcps_tunneled_errs, "\t\t{:received-bad-udp-tunneled-pkts/%ju} "
670 "{N:/UDP tunneled pkt cnt with error%s}\n");
671 p(tcps_rcvacktoomuch, "\t\t{:received-acks-for-unsent-data/%ju} "
672 "{N:/ack%s for unsent data}\n");
673 p2(tcps_rcvpack, tcps_rcvbyte, "\t\t"
674 "{:received-in-sequence-packets/%ju} {N:/packet%s} "
675 "({:received-in-sequence-bytes/%ju} {N:/byte%s}) "
676 "{N:received in-sequence}\n");
677 p2(tcps_rcvduppack, tcps_rcvdupbyte, "\t\t"
678 "{:received-completely-duplicate-packets/%ju} "
679 "{N:/completely duplicate packet%s} "
680 "({:received-completely-duplicate-bytes/%ju} {N:/byte%s})\n");
681 p(tcps_pawsdrop, "\t\t{:received-old-duplicate-packets/%ju} "
682 "{N:/old duplicate packet%s}\n");
683 p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte, "\t\t"
684 "{:received-some-duplicate-packets/%ju} "
685 "{N:/packet%s with some dup. data} "
686 "({:received-some-duplicate-bytes/%ju} {N:/byte%s duped/})\n");
687 p2(tcps_rcvoopack, tcps_rcvoobyte, "\t\t{:received-out-of-order/%ju} "
688 "{N:/out-of-order packet%s} "
689 "({:received-out-of-order-bytes/%ju} {N:/byte%s})\n");
690 p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin, "\t\t"
691 "{:received-after-window-packets/%ju} {N:/packet%s} "
692 "({:received-after-window-bytes/%ju} {N:/byte%s}) "
693 "{N:of data after window}\n");
694 p(tcps_rcvwinprobe, "\t\t{:received-window-probes/%ju} "
695 "{N:/window probe%s}\n");
696 p(tcps_rcvwinupd, "\t\t{:receive-window-update-packets/%ju} "
697 "{N:/window update packet%s}\n");
698 p(tcps_rcvafterclose, "\t\t{:received-after-close-packets/%ju} "
699 "{N:/packet%s received after close}\n");
700 p(tcps_rcvbadsum, "\t\t{:discard-bad-checksum/%ju} "
701 "{N:/discarded for bad checksum%s}\n");
702 p(tcps_rcvbadoff, "\t\t{:discard-bad-header-offset/%ju} "
703 "{N:/discarded for bad header offset field%s}\n");
704 p1a(tcps_rcvshort, "\t\t{:discard-too-short/%ju} "
705 "{N:discarded because packet too short}\n");
706 p1a(tcps_rcvreassfull, "\t\t{:discard-reassembly-queue-full/%ju} "
707 "{N:discarded due to full reassembly queue}\n");
708 p(tcps_connattempt, "\t{:connection-requests/%ju} "
709 "{N:/connection request%s}\n");
710 p(tcps_accepts, "\t{:connections-accepts/%ju} "
711 "{N:/connection accept%s}\n");
712 p(tcps_badsyn, "\t{:bad-connection-attempts/%ju} "
713 "{N:/bad connection attempt%s}\n");
714 p(tcps_listendrop, "\t{:listen-queue-overflows/%ju} "
715 "{N:/listen queue overflow%s}\n");
716 p(tcps_badrst, "\t{:ignored-in-window-resets/%ju} "
717 "{N:/ignored RSTs in the window%s}\n");
718 p(tcps_connects, "\t{:connections-established/%ju} "
719 "{N:/connection%s established (including accepts)}\n");
720 p(tcps_usedrtt, "\t\t{:connections-hostcache-rtt/%ju} "
721 "{N:/time%s used RTT from hostcache}\n");
722 p(tcps_usedrttvar, "\t\t{:connections-hostcache-rttvar/%ju} "
723 "{N:/time%s used RTT variance from hostcache}\n");
724 p(tcps_usedssthresh, "\t\t{:connections-hostcache-ssthresh/%ju} "
725 "{N:/time%s used slow-start threshold from hostcache}\n");
726 p2(tcps_closed, tcps_drops, "\t{:connections-closed/%ju} "
727 "{N:/connection%s closed (including} "
728 "{:connection-drops/%ju} {N:/drop%s})\n");
729 p(tcps_cachedrtt, "\t\t{:connections-updated-rtt-on-close/%ju} "
730 "{N:/connection%s updated cached RTT on close}\n");
731 p(tcps_cachedrttvar, "\t\t"
732 "{:connections-updated-variance-on-close/%ju} "
733 "{N:/connection%s updated cached RTT variance on close}\n");
734 p(tcps_cachedssthresh, "\t\t"
735 "{:connections-updated-ssthresh-on-close/%ju} "
736 "{N:/connection%s updated cached ssthresh on close}\n");
737 p(tcps_conndrops, "\t{:embryonic-connections-dropped/%ju} "
738 "{N:/embryonic connection%s dropped}\n");
739 p2(tcps_rttupdated, tcps_segstimed, "\t{:segments-updated-rtt/%ju} "
740 "{N:/segment%s updated rtt (of} "
741 "{:segment-update-attempts/%ju} {N:/attempt%s})\n");
742 p(tcps_rexmttimeo, "\t{:retransmit-timeouts/%ju} "
743 "{N:/retransmit timeout%s}\n");
744 p(tcps_timeoutdrop, "\t\t"
745 "{:connections-dropped-by-retransmit-timeout/%ju} "
746 "{N:/connection%s dropped by rexmit timeout}\n");
747 p(tcps_persisttimeo, "\t{:persist-timeout/%ju} "
748 "{N:/persist timeout%s}\n");
749 p(tcps_persistdrop, "\t\t"
750 "{:connections-dropped-by-persist-timeout/%ju} "
751 "{N:/connection%s dropped by persist timeout}\n");
752 p(tcps_finwait2_drops, "\t"
753 "{:connections-dropped-by-finwait2-timeout/%ju} "
754 "{N:/Connection%s (fin_wait_2) dropped because of timeout}\n");
755 p(tcps_keeptimeo, "\t{:keepalive-timeout/%ju} "
756 "{N:/keepalive timeout%s}\n");
757 p(tcps_keepprobe, "\t\t{:keepalive-probes/%ju} "
758 "{N:/keepalive probe%s sent}\n");
759 p(tcps_keepdrops, "\t\t{:connections-dropped-by-keepalives/%ju} "
760 "{N:/connection%s dropped by keepalive}\n");
761 p(tcps_predack, "\t{:ack-header-predictions/%ju} "
762 "{N:/correct ACK header prediction%s}\n");
763 p(tcps_preddat, "\t{:data-packet-header-predictions/%ju} "
764 "{N:/correct data packet header prediction%s}\n");
765
766 xo_open_container("syncache");
767
768 p3(tcps_sc_added, "\t{:entries-added/%ju} "
769 "{N:/syncache entr%s added}\n");
770 p1a(tcps_sc_retransmitted, "\t\t{:retransmitted/%ju} "
771 "{N:/retransmitted}\n");
772 p1a(tcps_sc_dupsyn, "\t\t{:duplicates/%ju} {N:/dupsyn}\n");
773 p1a(tcps_sc_dropped, "\t\t{:dropped/%ju} {N:/dropped}\n");
774 p1a(tcps_sc_completed, "\t\t{:completed/%ju} {N:/completed}\n");
775 p1a(tcps_sc_bucketoverflow, "\t\t{:bucket-overflow/%ju} "
776 "{N:/bucket overflow}\n");
777 p1a(tcps_sc_cacheoverflow, "\t\t{:cache-overflow/%ju} "
778 "{N:/cache overflow}\n");
779 p1a(tcps_sc_reset, "\t\t{:reset/%ju} {N:/reset}\n");
780 p1a(tcps_sc_stale, "\t\t{:stale/%ju} {N:/stale}\n");
781 p1a(tcps_sc_aborted, "\t\t{:aborted/%ju} {N:/aborted}\n");
782 p1a(tcps_sc_badack, "\t\t{:bad-ack/%ju} {N:/badack}\n");
783 p1a(tcps_sc_unreach, "\t\t{:unreachable/%ju} {N:/unreach}\n");
784 p(tcps_sc_zonefail, "\t\t{:zone-failures/%ju} {N:/zone failure%s}\n");
785 p(tcps_sc_sendcookie, "\t{:sent-cookies/%ju} {N:/cookie%s sent}\n");
786 p(tcps_sc_recvcookie, "\t{:receivd-cookies/%ju} "
787 "{N:/cookie%s received}\n");
788
789 xo_close_container("syncache");
790
791 xo_open_container("hostcache");
792
793 p3(tcps_hc_added, "\t{:entries-added/%ju} "
794 "{N:/hostcache entr%s added}\n");
795 p1a(tcps_hc_bucketoverflow, "\t\t{:buffer-overflows/%ju} "
796 "{N:/bucket overflow}\n");
797
798 xo_close_container("hostcache");
799
800 xo_open_container("sack");
801
802 p(tcps_sack_recovery_episode, "\t{:recovery-episodes/%ju} "
803 "{N:/SACK recovery episode%s}\n");
804 p(tcps_sack_rexmits, "\t{:segment-retransmits/%ju} "
805 "{N:/segment rexmit%s in SACK recovery episodes}\n");
806 p(tcps_sack_rexmit_bytes, "\t{:byte-retransmits/%ju} "
807 "{N:/byte rexmit%s in SACK recovery episodes}\n");
808 p(tcps_sack_rcv_blocks, "\t{:received-blocks/%ju} "
809 "{N:/SACK option%s (SACK blocks) received}\n");
810 p(tcps_sack_send_blocks, "\t{:sent-option-blocks/%ju} "
811 "{N:/SACK option%s (SACK blocks) sent}\n");
812 p1a(tcps_sack_sboverflow, "\t{:scoreboard-overflows/%ju} "
813 "{N:/SACK scoreboard overflow}\n");
814
815 xo_close_container("sack");
816 xo_open_container("ecn");
817
818 p(tcps_ecn_ce, "\t{:ce-packets/%ju} "
819 "{N:/packet%s with ECN CE bit set}\n");
820 p(tcps_ecn_ect0, "\t{:ect0-packets/%ju} "
821 "{N:/packet%s with ECN ECT(0) bit set}\n");
822 p(tcps_ecn_ect1, "\t{:ect1-packets/%ju} "
823 "{N:/packet%s with ECN ECT(1) bit set}\n");
824 p(tcps_ecn_shs, "\t{:handshakes/%ju} "
825 "{N:/successful ECN handshake%s}\n");
826 p(tcps_ecn_rcwnd, "\t{:congestion-reductions/%ju} "
827 "{N:/time%s ECN reduced the congestion window}\n");
828
829 xo_close_container("ecn");
830 xo_open_container("tcp-signature");
831 p(tcps_sig_rcvgoodsig, "\t{:received-good-signature/%ju} "
832 "{N:/packet%s with matching signature received}\n");
833 p(tcps_sig_rcvbadsig, "\t{:received-bad-signature/%ju} "
834 "{N:/packet%s with bad signature received}\n");
835 p(tcps_sig_err_buildsig, "\t{:failed-make-signature/%ju} "
836 "{N:/time%s failed to make signature due to no SA}\n");
837 p(tcps_sig_err_sigopt, "\t{:no-signature-expected/%ju} "
838 "{N:/time%s unexpected signature received}\n");
839 p(tcps_sig_err_nosigopt, "\t{:no-signature-provided/%ju} "
840 "{N:/time%s no signature provided by segment}\n");
841
842 xo_close_container("tcp-signature");
843 xo_open_container("pmtud");
844
845 p(tcps_pmtud_blackhole_activated, "\t{:pmtud-activated/%ju} "
846 "{N:/Path MTU discovery black hole detection activation%s}\n");
847 p(tcps_pmtud_blackhole_activated_min_mss,
848 "\t{:pmtud-activated-min-mss/%ju} "
849 "{N:/Path MTU discovery black hole detection min MSS activation%s}\n");
850 p(tcps_pmtud_blackhole_failed, "\t{:pmtud-failed/%ju} "
851 "{N:/Path MTU discovery black hole detection failure%s}\n");
852
853 xo_close_container("pmtud");
854 xo_open_container("tw");
855
856 p(tcps_tw_responds, "\t{:tw_responds/%ju} "
857 "{N:/time%s connection in TIME-WAIT responded with ACK}\n");
858 p(tcps_tw_recycles, "\t{:tw_recycles/%ju} "
859 "{N:/time%s connection in TIME-WAIT was actively recycled}\n");
860 p(tcps_tw_resets, "\t{:tw_resets/%ju} "
861 "{N:/time%s connection in TIME-WAIT responded with RST}\n");
862
863 xo_close_container("tw");
864 #undef p
865 #undef p1a
866 #undef p2
867 #undef p2a
868 #undef p3
869
870 xo_open_container("TCP connection count by state");
871 xo_emit("{T:/TCP connection count by state}:\n");
872 for (int i = 0; i < TCP_NSTATES; i++) {
873 /*
874 * XXXGL: is there a way in libxo to use %s
875 * in the "content string" of a format
876 * string? I failed to do that, that's why
877 * a temporary buffer is used to construct
878 * format string for xo_emit().
879 */
880 char fmtbuf[80];
881
882 if (sflag > 1 && tcps_states[i] == 0)
883 continue;
884 snprintf(fmtbuf, sizeof(fmtbuf), "\t{:%s/%%ju} "
885 "{Np:/connection ,connections} in %s state\n",
886 tcpstates[i], tcpstates[i]);
887 xo_emit(fmtbuf, (uintmax_t )tcps_states[i]);
888 }
889 xo_close_container("TCP connection count by state");
890
891 xo_close_container("tcp");
892 }
893
894 /*
895 * Dump UDP statistics structure.
896 */
897 void
udp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)898 udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
899 {
900 struct udpstat udpstat;
901 uint64_t delivered;
902
903 #ifdef INET6
904 if (udp_done != 0)
905 return;
906 else
907 udp_done = 1;
908 #endif
909
910 if (fetch_stats("net.inet.udp.stats", off, &udpstat,
911 sizeof(udpstat), kread_counters) != 0)
912 return;
913
914 xo_open_container("udp");
915 xo_emit("{T:/%s}:\n", name);
916
917 #define p(f, m) if (udpstat.f || sflag <= 1) \
918 xo_emit("\t" m, (uintmax_t)udpstat.f, plural(udpstat.f))
919 #define p1a(f, m) if (udpstat.f || sflag <= 1) \
920 xo_emit("\t" m, (uintmax_t)udpstat.f)
921
922 p(udps_ipackets, "{:received-datagrams/%ju} "
923 "{N:/datagram%s received}\n");
924 p1a(udps_hdrops, "{:dropped-incomplete-headers/%ju} "
925 "{N:/with incomplete header}\n");
926 p1a(udps_badlen, "{:dropped-bad-data-length/%ju} "
927 "{N:/with bad data length field}\n");
928 p1a(udps_badsum, "{:dropped-bad-checksum/%ju} "
929 "{N:/with bad checksum}\n");
930 p1a(udps_nosum, "{:dropped-no-checksum/%ju} "
931 "{N:/with no checksum}\n");
932 p1a(udps_noport, "{:dropped-no-socket/%ju} "
933 "{N:/dropped due to no socket}\n");
934 p(udps_noportbcast, "{:dropped-broadcast-multicast/%ju} "
935 "{N:/broadcast\\/multicast datagram%s undelivered}\n");
936 p1a(udps_fullsock, "{:dropped-full-socket-buffer/%ju} "
937 "{N:/dropped due to full socket buffers}\n");
938 p1a(udpps_pcbhashmiss, "{:not-for-hashed-pcb/%ju} "
939 "{N:/not for hashed pcb}\n");
940 delivered = udpstat.udps_ipackets -
941 udpstat.udps_hdrops -
942 udpstat.udps_badlen -
943 udpstat.udps_badsum -
944 udpstat.udps_noport -
945 udpstat.udps_noportbcast -
946 udpstat.udps_fullsock;
947 if (delivered || sflag <= 1)
948 xo_emit("\t{:delivered-packets/%ju} {N:/delivered}\n",
949 (uint64_t)delivered);
950 p(udps_opackets, "{:output-packets/%ju} {N:/datagram%s output}\n");
951 /* the next statistic is cumulative in udps_noportbcast */
952 p(udps_filtermcast, "{:multicast-source-filter-matches/%ju} "
953 "{N:/time%s multicast source filter matched}\n");
954 #undef p
955 #undef p1a
956 xo_close_container("udp");
957 }
958
959 /*
960 * Dump CARP statistics structure.
961 */
962 void
carp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)963 carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
964 {
965 struct carpstats carpstat;
966
967 if (fetch_stats("net.inet.carp.stats", off, &carpstat,
968 sizeof(carpstat), kread_counters) != 0)
969 return;
970
971 xo_open_container(name);
972 xo_emit("{T:/%s}:\n", name);
973
974 #define p(f, m) if (carpstat.f || sflag <= 1) \
975 xo_emit(m, (uintmax_t)carpstat.f, plural(carpstat.f))
976 #define p2(f, m) if (carpstat.f || sflag <= 1) \
977 xo_emit(m, (uintmax_t)carpstat.f)
978
979 p(carps_ipackets, "\t{:received-inet-packets/%ju} "
980 "{N:/packet%s received (IPv4)}\n");
981 p(carps_ipackets6, "\t{:received-inet6-packets/%ju} "
982 "{N:/packet%s received (IPv6)}\n");
983 p(carps_badttl, "\t\t{:dropped-wrong-ttl/%ju} "
984 "{N:/packet%s discarded for wrong TTL}\n");
985 p(carps_hdrops, "\t\t{:dropped-short-header/%ju} "
986 "{N:/packet%s shorter than header}\n");
987 p(carps_badsum, "\t\t{:dropped-bad-checksum/%ju} "
988 "{N:/discarded for bad checksum%s}\n");
989 p(carps_badver, "\t\t{:dropped-bad-version/%ju} "
990 "{N:/discarded packet%s with a bad version}\n");
991 p2(carps_badlen, "\t\t{:dropped-short-packet/%ju} "
992 "{N:/discarded because packet too short}\n");
993 p2(carps_badauth, "\t\t{:dropped-bad-authentication/%ju} "
994 "{N:/discarded for bad authentication}\n");
995 p2(carps_badvhid, "\t\t{:dropped-bad-vhid/%ju} "
996 "{N:/discarded for bad vhid}\n");
997 p2(carps_badaddrs, "\t\t{:dropped-bad-address-list/%ju} "
998 "{N:/discarded because of a bad address list}\n");
999 p(carps_opackets, "\t{:sent-inet-packets/%ju} "
1000 "{N:/packet%s sent (IPv4)}\n");
1001 p(carps_opackets6, "\t{:sent-inet6-packets/%ju} "
1002 "{N:/packet%s sent (IPv6)}\n");
1003 p2(carps_onomem, "\t\t{:send-failed-memory-error/%ju} "
1004 "{N:/send failed due to mbuf memory error}\n");
1005 #if notyet
1006 p(carps_ostates, "\t\t{:send-state-updates/%s} "
1007 "{N:/state update%s sent}\n");
1008 #endif
1009 #undef p
1010 #undef p2
1011 xo_close_container(name);
1012 }
1013
1014 /*
1015 * Dump IP statistics structure.
1016 */
1017 void
ip_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1018 ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1019 {
1020 struct ipstat ipstat;
1021
1022 if (fetch_stats("net.inet.ip.stats", off, &ipstat,
1023 sizeof(ipstat), kread_counters) != 0)
1024 return;
1025
1026 xo_open_container(name);
1027 xo_emit("{T:/%s}:\n", name);
1028
1029 #define p(f, m) if (ipstat.f || sflag <= 1) \
1030 xo_emit(m, (uintmax_t )ipstat.f, plural(ipstat.f))
1031 #define p1a(f, m) if (ipstat.f || sflag <= 1) \
1032 xo_emit(m, (uintmax_t )ipstat.f)
1033
1034 p(ips_total, "\t{:received-packets/%ju} "
1035 "{N:/total packet%s received}\n");
1036 p(ips_badsum, "\t{:dropped-bad-checksum/%ju} "
1037 "{N:/bad header checksum%s}\n");
1038 p1a(ips_toosmall, "\t{:dropped-below-minimum-size/%ju} "
1039 "{N:/with size smaller than minimum}\n");
1040 p1a(ips_tooshort, "\t{:dropped-short-packets/%ju} "
1041 "{N:/with data size < data length}\n");
1042 p1a(ips_toolong, "\t{:dropped-too-long/%ju} "
1043 "{N:/with ip length > max ip packet size}\n");
1044 p1a(ips_badhlen, "\t{:dropped-short-header-length/%ju} "
1045 "{N:/with header length < data size}\n");
1046 p1a(ips_badlen, "\t{:dropped-short-data/%ju} "
1047 "{N:/with data length < header length}\n");
1048 p1a(ips_badoptions, "\t{:dropped-bad-options/%ju} "
1049 "{N:/with bad options}\n");
1050 p1a(ips_badvers, "\t{:dropped-bad-version/%ju} "
1051 "{N:/with incorrect version number}\n");
1052 p(ips_fragments, "\t{:received-fragments/%ju} "
1053 "{N:/fragment%s received}\n");
1054 p(ips_fragdropped, "\t{:dropped-fragments/%ju} "
1055 "{N:/fragment%s dropped (dup or out of space)}\n");
1056 p(ips_fragtimeout, "\t{:dropped-fragments-after-timeout/%ju} "
1057 "{N:/fragment%s dropped after timeout}\n");
1058 p(ips_reassembled, "\t{:reassembled-packets/%ju} "
1059 "{N:/packet%s reassembled ok}\n");
1060 p(ips_delivered, "\t{:received-local-packets/%ju} "
1061 "{N:/packet%s for this host}\n");
1062 p(ips_noproto, "\t{:dropped-unknown-protocol/%ju} "
1063 "{N:/packet%s for unknown\\/unsupported protocol}\n");
1064 p(ips_forward, "\t{:forwarded-packets/%ju} "
1065 "{N:/packet%s forwarded}");
1066 p(ips_fastforward, " ({:fast-forwarded-packets/%ju} "
1067 "{N:/packet%s fast forwarded})");
1068 if (ipstat.ips_forward || sflag <= 1)
1069 xo_emit("\n");
1070 p(ips_cantforward, "\t{:packets-cannot-forward/%ju} "
1071 "{N:/packet%s not forwardable}\n");
1072 p(ips_notmember, "\t{:received-unknown-multicast-group/%ju} "
1073 "{N:/packet%s received for unknown multicast group}\n");
1074 p(ips_redirectsent, "\t{:redirects-sent/%ju} "
1075 "{N:/redirect%s sent}\n");
1076 p(ips_localout, "\t{:sent-packets/%ju} "
1077 "{N:/packet%s sent from this host}\n");
1078 p(ips_rawout, "\t{:send-packets-fabricated-header/%ju} "
1079 "{N:/packet%s sent with fabricated ip header}\n");
1080 p(ips_odropped, "\t{:discard-no-mbufs/%ju} "
1081 "{N:/output packet%s dropped due to no bufs, etc.}\n");
1082 p(ips_noroute, "\t{:discard-no-route/%ju} "
1083 "{N:/output packet%s discarded due to no route}\n");
1084 p(ips_fragmented, "\t{:sent-fragments/%ju} "
1085 "{N:/output datagram%s fragmented}\n");
1086 p(ips_ofragments, "\t{:fragments-created/%ju} "
1087 "{N:/fragment%s created}\n");
1088 p(ips_cantfrag, "\t{:discard-cannot-fragment/%ju} "
1089 "{N:/datagram%s that can't be fragmented}\n");
1090 p(ips_nogif, "\t{:discard-tunnel-no-gif/%ju} "
1091 "{N:/tunneling packet%s that can't find gif}\n");
1092 p(ips_badaddr, "\t{:discard-bad-address/%ju} "
1093 "{N:/datagram%s with bad address in header}\n");
1094 #undef p
1095 #undef p1a
1096 xo_close_container(name);
1097 }
1098
1099 /*
1100 * Dump ARP statistics structure.
1101 */
1102 void
arp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1103 arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1104 {
1105 struct arpstat arpstat;
1106
1107 if (fetch_stats("net.link.ether.arp.stats", off, &arpstat,
1108 sizeof(arpstat), kread_counters) != 0)
1109 return;
1110
1111 xo_open_container(name);
1112 xo_emit("{T:/%s}:\n", name);
1113
1114 #define p(f, m) if (arpstat.f || sflag <= 1) \
1115 xo_emit("\t" m, (uintmax_t)arpstat.f, plural(arpstat.f))
1116 #define p2(f, m) if (arpstat.f || sflag <= 1) \
1117 xo_emit("\t" m, (uintmax_t)arpstat.f, pluralies(arpstat.f))
1118
1119 p(txrequests, "{:sent-requests/%ju} {N:/ARP request%s sent}\n");
1120 p(txerrors, "{:sent-failures/%ju} {N:/ARP request%s failed to sent}\n");
1121 p2(txreplies, "{:sent-replies/%ju} {N:/ARP repl%s sent}\n");
1122 p(rxrequests, "{:received-requests/%ju} "
1123 "{N:/ARP request%s received}\n");
1124 p2(rxreplies, "{:received-replies/%ju} "
1125 "{N:/ARP repl%s received}\n");
1126 p(received, "{:received-packets/%ju} "
1127 "{N:/ARP packet%s received}\n");
1128 p(dropped, "{:dropped-no-entry/%ju} "
1129 "{N:/total packet%s dropped due to no ARP entry}\n");
1130 p(timeouts, "{:entries-timeout/%ju} "
1131 "{N:/ARP entry%s timed out}\n");
1132 p(dupips, "{:dropped-duplicate-address/%ju} "
1133 "{N:/Duplicate IP%s seen}\n");
1134 #undef p
1135 #undef p2
1136 xo_close_container(name);
1137 }
1138
1139
1140
1141 static const char *icmpnames[ICMP_MAXTYPE + 1] = {
1142 "echo reply", /* RFC 792 */
1143 "#1",
1144 "#2",
1145 "destination unreachable", /* RFC 792 */
1146 "source quench", /* RFC 792 */
1147 "routing redirect", /* RFC 792 */
1148 "#6",
1149 "#7",
1150 "echo", /* RFC 792 */
1151 "router advertisement", /* RFC 1256 */
1152 "router solicitation", /* RFC 1256 */
1153 "time exceeded", /* RFC 792 */
1154 "parameter problem", /* RFC 792 */
1155 "time stamp", /* RFC 792 */
1156 "time stamp reply", /* RFC 792 */
1157 "information request", /* RFC 792 */
1158 "information request reply", /* RFC 792 */
1159 "address mask request", /* RFC 950 */
1160 "address mask reply", /* RFC 950 */
1161 "#19",
1162 "#20",
1163 "#21",
1164 "#22",
1165 "#23",
1166 "#24",
1167 "#25",
1168 "#26",
1169 "#27",
1170 "#28",
1171 "#29",
1172 "icmp traceroute", /* RFC 1393 */
1173 "datagram conversion error", /* RFC 1475 */
1174 "mobile host redirect",
1175 "IPv6 where-are-you",
1176 "IPv6 i-am-here",
1177 "mobile registration req",
1178 "mobile registration reply",
1179 "domain name request", /* RFC 1788 */
1180 "domain name reply", /* RFC 1788 */
1181 "icmp SKIP",
1182 "icmp photuris", /* RFC 2521 */
1183 };
1184
1185 /*
1186 * Dump ICMP statistics.
1187 */
1188 void
icmp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1189 icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1190 {
1191 struct icmpstat icmpstat;
1192 size_t len;
1193 int i, first;
1194
1195 if (fetch_stats("net.inet.icmp.stats", off, &icmpstat,
1196 sizeof(icmpstat), kread_counters) != 0)
1197 return;
1198
1199 xo_open_container(name);
1200 xo_emit("{T:/%s}:\n", name);
1201
1202 #define p(f, m) if (icmpstat.f || sflag <= 1) \
1203 xo_emit(m, icmpstat.f, plural(icmpstat.f))
1204 #define p1a(f, m) if (icmpstat.f || sflag <= 1) \
1205 xo_emit(m, icmpstat.f)
1206 #define p2(f, m) if (icmpstat.f || sflag <= 1) \
1207 xo_emit(m, icmpstat.f, plurales(icmpstat.f))
1208
1209 p(icps_error, "\t{:icmp-calls/%lu} "
1210 "{N:/call%s to icmp_error}\n");
1211 p(icps_oldicmp, "\t{:errors-not-from-message/%lu} "
1212 "{N:/error%s not generated in response to an icmp message}\n");
1213
1214 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1215 if (icmpstat.icps_outhist[i] != 0) {
1216 if (first) {
1217 xo_open_list("output-histogram");
1218 xo_emit("\tOutput histogram:\n");
1219 first = 0;
1220 }
1221 xo_open_instance("output-histogram");
1222 if (icmpnames[i] != NULL)
1223 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1224 icmpnames[i], icmpstat.icps_outhist[i]);
1225 else
1226 xo_emit("\t\tunknown ICMP #{k:name/%d}: "
1227 "{:count/%lu}\n",
1228 i, icmpstat.icps_outhist[i]);
1229 xo_close_instance("output-histogram");
1230 }
1231 }
1232 if (!first)
1233 xo_close_list("output-histogram");
1234
1235 p(icps_badcode, "\t{:dropped-bad-code/%lu} "
1236 "{N:/message%s with bad code fields}\n");
1237 p(icps_tooshort, "\t{:dropped-too-short/%lu} "
1238 "{N:/message%s less than the minimum length}\n");
1239 p(icps_checksum, "\t{:dropped-bad-checksum/%lu} "
1240 "{N:/message%s with bad checksum}\n");
1241 p(icps_badlen, "\t{:dropped-bad-length/%lu} "
1242 "{N:/message%s with bad length}\n");
1243 p1a(icps_bmcastecho, "\t{:dropped-multicast-echo/%lu} "
1244 "{N:/multicast echo requests ignored}\n");
1245 p1a(icps_bmcasttstamp, "\t{:dropped-multicast-timestamp/%lu} "
1246 "{N:/multicast timestamp requests ignored}\n");
1247
1248 for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++) {
1249 if (icmpstat.icps_inhist[i] != 0) {
1250 if (first) {
1251 xo_open_list("input-histogram");
1252 xo_emit("\tInput histogram:\n");
1253 first = 0;
1254 }
1255 xo_open_instance("input-histogram");
1256 if (icmpnames[i] != NULL)
1257 xo_emit("\t\t{k:name/%s}: {:count/%lu}\n",
1258 icmpnames[i],
1259 icmpstat.icps_inhist[i]);
1260 else
1261 xo_emit(
1262 "\t\tunknown ICMP #{k:name/%d}: {:count/%lu}\n",
1263 i, icmpstat.icps_inhist[i]);
1264 xo_close_instance("input-histogram");
1265 }
1266 }
1267 if (!first)
1268 xo_close_list("input-histogram");
1269
1270 p(icps_reflect, "\t{:sent-packets/%lu} "
1271 "{N:/message response%s generated}\n");
1272 p2(icps_badaddr, "\t{:discard-invalid-return-address/%lu} "
1273 "{N:/invalid return address%s}\n");
1274 p(icps_noroute, "\t{:discard-no-route/%lu} "
1275 "{N:/no return route%s}\n");
1276 #undef p
1277 #undef p1a
1278 #undef p2
1279 if (live) {
1280 len = sizeof i;
1281 if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1282 0)
1283 return;
1284 xo_emit("\tICMP address mask responses are "
1285 "{q:icmp-address-responses/%sabled}\n", i ? "en" : "dis");
1286 }
1287
1288 xo_close_container(name);
1289 }
1290
1291 /*
1292 * Dump IGMP statistics structure.
1293 */
1294 void
igmp_stats(u_long off,const char * name,int af1 __unused,int proto __unused)1295 igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1296 {
1297 struct igmpstat igmpstat;
1298 int error, zflag0;
1299
1300 if (fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1301 sizeof(igmpstat), kread) != 0)
1302 return;
1303 /*
1304 * Reread net.inet.igmp.stats when zflag == 1.
1305 * This is because this MIB contains version number and
1306 * length of the structure which are not set when clearing
1307 * the counters.
1308 */
1309 zflag0 = zflag;
1310 if (zflag) {
1311 zflag = 0;
1312 error = fetch_stats("net.inet.igmp.stats", 0, &igmpstat,
1313 sizeof(igmpstat), kread);
1314 zflag = zflag0;
1315 if (error)
1316 return;
1317 }
1318
1319 if (igmpstat.igps_version != IGPS_VERSION_3) {
1320 xo_warnx("%s: version mismatch (%d != %d)", __func__,
1321 igmpstat.igps_version, IGPS_VERSION_3);
1322 return;
1323 }
1324 if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1325 xo_warnx("%s: size mismatch (%d != %d)", __func__,
1326 igmpstat.igps_len, IGPS_VERSION3_LEN);
1327 return;
1328 }
1329
1330 xo_open_container(name);
1331 xo_emit("{T:/%s}:\n", name);
1332
1333 #define p64(f, m) if (igmpstat.f || sflag <= 1) \
1334 xo_emit(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1335 #define py64(f, m) if (igmpstat.f || sflag <= 1) \
1336 xo_emit(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1337
1338 p64(igps_rcv_total, "\t{:received-messages/%ju} "
1339 "{N:/message%s received}\n");
1340 p64(igps_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1341 "{N:/message%s received with too few bytes}\n");
1342 p64(igps_rcv_badttl, "\t{:dropped-wrong-ttl/%ju} "
1343 "{N:/message%s received with wrong TTL}\n");
1344 p64(igps_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1345 "{N:/message%s received with bad checksum}\n");
1346 py64(igps_rcv_v1v2_queries, "\t{:received-membership-queries/%ju} "
1347 "{N:/V1\\/V2 membership quer%s received}\n");
1348 py64(igps_rcv_v3_queries, "\t{:received-v3-membership-queries/%ju} "
1349 "{N:/V3 membership quer%s received}\n");
1350 py64(igps_rcv_badqueries, "\t{:dropped-membership-queries/%ju} "
1351 "{N:/membership quer%s received with invalid field(s)}\n");
1352 py64(igps_rcv_gen_queries, "\t{:received-general-queries/%ju} "
1353 "{N:/general quer%s received}\n");
1354 py64(igps_rcv_group_queries, "\t{:received-group-queries/%ju} "
1355 "{N:/group quer%s received}\n");
1356 py64(igps_rcv_gsr_queries, "\t{:received-group-source-queries/%ju} "
1357 "{N:/group-source quer%s received}\n");
1358 py64(igps_drop_gsr_queries, "\t{:dropped-group-source-queries/%ju} "
1359 "{N:/group-source quer%s dropped}\n");
1360 p64(igps_rcv_reports, "\t{:received-membership-requests/%ju} "
1361 "{N:/membership report%s received}\n");
1362 p64(igps_rcv_badreports, "\t{:dropped-membership-reports/%ju} "
1363 "{N:/membership report%s received with invalid field(s)}\n");
1364 p64(igps_rcv_ourreports, "\t"
1365 "{:received-membership-reports-matching/%ju} "
1366 "{N:/membership report%s received for groups to which we belong}"
1367 "\n");
1368 p64(igps_rcv_nora, "\t{:received-v3-reports-no-router-alert/%ju} "
1369 "{N:/V3 report%s received without Router Alert}\n");
1370 p64(igps_snd_reports, "\t{:sent-membership-reports/%ju} "
1371 "{N:/membership report%s sent}\n");
1372 #undef p64
1373 #undef py64
1374 xo_close_container(name);
1375 }
1376
1377 /*
1378 * Dump PIM statistics structure.
1379 */
1380 void
pim_stats(u_long off __unused,const char * name,int af1 __unused,int proto __unused)1381 pim_stats(u_long off __unused, const char *name, int af1 __unused,
1382 int proto __unused)
1383 {
1384 struct pimstat pimstat;
1385
1386 if (fetch_stats("net.inet.pim.stats", off, &pimstat,
1387 sizeof(pimstat), kread_counters) != 0)
1388 return;
1389
1390 xo_open_container(name);
1391 xo_emit("{T:/%s}:\n", name);
1392
1393 #define p(f, m) if (pimstat.f || sflag <= 1) \
1394 xo_emit(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1395 #define py(f, m) if (pimstat.f || sflag <= 1) \
1396 xo_emit(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1397
1398 p(pims_rcv_total_msgs, "\t{:received-messages/%ju} "
1399 "{N:/message%s received}\n");
1400 p(pims_rcv_total_bytes, "\t{:received-bytes/%ju} "
1401 "{N:/byte%s received}\n");
1402 p(pims_rcv_tooshort, "\t{:dropped-too-short/%ju} "
1403 "{N:/message%s received with too few bytes}\n");
1404 p(pims_rcv_badsum, "\t{:dropped-bad-checksum/%ju} "
1405 "{N:/message%s received with bad checksum}\n");
1406 p(pims_rcv_badversion, "\t{:dropped-bad-version/%ju} "
1407 "{N:/message%s received with bad version}\n");
1408 p(pims_rcv_registers_msgs, "\t{:received-data-register-messages/%ju} "
1409 "{N:/data register message%s received}\n");
1410 p(pims_rcv_registers_bytes, "\t{:received-data-register-bytes/%ju} "
1411 "{N:/data register byte%s received}\n");
1412 p(pims_rcv_registers_wrongiif, "\t"
1413 "{:received-data-register-wrong-interface/%ju} "
1414 "{N:/data register message%s received on wrong iif}\n");
1415 p(pims_rcv_badregisters, "\t{:received-bad-registers/%ju} "
1416 "{N:/bad register%s received}\n");
1417 p(pims_snd_registers_msgs, "\t{:sent-data-register-messages/%ju} "
1418 "{N:/data register message%s sent}\n");
1419 p(pims_snd_registers_bytes, "\t{:sent-data-register-bytes/%ju} "
1420 "{N:/data register byte%s sent}\n");
1421 #undef p
1422 #undef py
1423 xo_close_container(name);
1424 }
1425
1426 #ifdef INET
1427 /*
1428 * Pretty print an Internet address (net address + port).
1429 */
1430 static void
inetprint(const char * container,struct in_addr * in,int port,const char * proto,int num_port,const int af1)1431 inetprint(const char *container, struct in_addr *in, int port,
1432 const char *proto, int num_port, const int af1)
1433 {
1434 struct servent *sp = 0;
1435 char line[80], *cp;
1436 int width;
1437 size_t alen, plen;
1438
1439 if (container)
1440 xo_open_container(container);
1441
1442 if (Wflag)
1443 snprintf(line, sizeof(line), "%s.", inetname(in));
1444 else
1445 snprintf(line, sizeof(line), "%.*s.",
1446 (Aflag && !num_port) ? 12 : 16, inetname(in));
1447 alen = strlen(line);
1448 cp = line + alen;
1449 if (!num_port && port)
1450 sp = getservbyport((int)port, proto);
1451 if (sp || port == 0)
1452 snprintf(cp, sizeof(line) - alen,
1453 "%.15s ", sp ? sp->s_name : "*");
1454 else
1455 snprintf(cp, sizeof(line) - alen,
1456 "%d ", ntohs((u_short)port));
1457 width = (Aflag && !Wflag) ? 18 :
1458 ((!Wflag || af1 == AF_INET) ? 22 : 45);
1459 if (Wflag)
1460 xo_emit("{d:target/%-*s} ", width, line);
1461 else
1462 xo_emit("{d:target/%-*.*s} ", width, width, line);
1463
1464 plen = strlen(cp) - 1;
1465 alen--;
1466 xo_emit("{e:address/%*.*s}{e:port/%*.*s}", alen, alen, line, plen,
1467 plen, cp);
1468
1469 if (container)
1470 xo_close_container(container);
1471 }
1472
1473 /*
1474 * Construct an Internet address representation.
1475 * If numeric_addr has been supplied, give
1476 * numeric value, otherwise try for symbolic name.
1477 */
1478 char *
inetname(struct in_addr * inp)1479 inetname(struct in_addr *inp)
1480 {
1481 char *cp;
1482 static char line[MAXHOSTNAMELEN];
1483 struct hostent *hp;
1484
1485 cp = 0;
1486 if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1487 hp = gethostbyaddr((char *)inp, sizeof (*inp), AF_INET);
1488 if (hp) {
1489 cp = hp->h_name;
1490 trimdomain(cp, strlen(cp));
1491 }
1492 }
1493 if (inp->s_addr == INADDR_ANY)
1494 strcpy(line, "*");
1495 else if (cp) {
1496 strlcpy(line, cp, sizeof(line));
1497 } else {
1498 inp->s_addr = ntohl(inp->s_addr);
1499 #define C(x) ((u_int)((x) & 0xff))
1500 snprintf(line, sizeof(line), "%u.%u.%u.%u",
1501 C(inp->s_addr >> 24), C(inp->s_addr >> 16),
1502 C(inp->s_addr >> 8), C(inp->s_addr));
1503 }
1504 return (line);
1505 }
1506 #endif
1507