Context Navigation

inet.c @ 6da9b23

4.1155-freebsd-126-freebsd-12freebsd-9.3

Last change on this file since 6da9b23 was 6da9b23, checked in by Sebastian Huber <sebastian.huber@…>, on 10/30/13 at 14:42:53

NETSTAT(1): Initialize global variables

Use BSD program lock.

Property mode set to 100644

File size: 37.7 KB

Line
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. All advertising materials mentioning features or use of this software
14	* must display the following acknowledgement:
15	* This product includes software developed by the University of
16	* California, Berkeley and its contributors.
17	* 4. Neither the name of the University nor the names of its contributors
18	* may be used to endorse or promote products derived from this software
19	* without specific prior written permission.
20	*
21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31	* SUCH DAMAGE.
32	*/
33
34	#if 0
35	#ifndef lint
36	static char sccsid[] = "@(#)inet.c 8.5 (Berkeley) 5/24/95";
37	#endif /* not lint */
38	#endif
39
40	#include <sys/cdefs.h>
41	__FBSDID("$FreeBSD$");
42
43	#include <rtems/bsd/sys/param.h>
44	#include <sys/queue.h>
45	#include <sys/domain.h>
46	#include <sys/protosw.h>
47	#include <sys/socket.h>
48	#include <sys/socketvar.h>
49	#include <sys/sysctl.h>
50
51	#include <net/route.h>
52	#include <net/if_arp.h>
53	#include <netinet/in.h>
54	#include <netinet/in_systm.h>
55	#include <netinet/ip.h>
56	#include <netinet/ip_carp.h>
57	#ifdef INET6
58	#include <netinet/ip6.h>
59	#endif /* INET6 */
60	#include <netinet/in_pcb.h>
61	#include <netinet/ip_icmp.h>
62	#include <netinet/icmp_var.h>
63	#include <netinet/igmp_var.h>
64	#include <netinet/ip_var.h>
65	#include <netinet/pim_var.h>
66	#include <netinet/tcp.h>
67	#include <netinet/tcpip.h>
68	#include <netinet/tcp_seq.h>
69	#define TCPSTATES
70	#include <netinet/tcp_fsm.h>
71	#include <netinet/tcp_timer.h>
72	#include <netinet/tcp_var.h>
73	#include <netinet/tcp_debug.h>
74	#include <netinet/udp.h>
75	#include <netinet/udp_var.h>
76
77	#include <arpa/inet.h>
78	#include <err.h>
79	#include <errno.h>
80	#include <libutil.h>
81	#include <netdb.h>
82	#include <stdint.h>
83	#include <stdio.h>
84	#include <stdlib.h>
85	#include <string.h>
86	#include <unistd.h>
87	#include "netstat.h"
88
89	char inetname(struct in_addr );
90	void inetprint(struct in_addr , int, const char , int);
91	#ifdef INET6
92	static int udp_done, tcp_done;
93	#endif /* INET6 */
94
95	static int
96	pcblist_sysctl(int proto, char **bufp, int istcp)
97	{
98	const char *mibvar;
99	char *buf;
100	size_t len;
101
102	switch (proto) {
103	case IPPROTO_TCP:
104	mibvar = "net.inet.tcp.pcblist";
105	break;
106	case IPPROTO_UDP:
107	mibvar = "net.inet.udp.pcblist";
108	break;
109	case IPPROTO_DIVERT:
110	mibvar = "net.inet.divert.pcblist";
111	break;
112	default:
113	mibvar = "net.inet.raw.pcblist";
114	break;
115	}
116
117	len = 0;
118	if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
119	if (errno != ENOENT)
120	warn("sysctl: %s", mibvar);
121	return (0);
122	}
123	if ((buf = malloc(len)) == 0) {
124	warnx("malloc %lu bytes", (u_long)len);
125	return (0);
126	}
127	if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
128	warn("sysctl: %s", mibvar);
129	free(buf);
130	return (0);
131	}
132	*bufp = buf;
133	return (1);
134	}
135
136	/*
137	* Copied directly from uipc_socket2.c. We leave out some fields that are in
138	* nested structures that aren't used to avoid extra work.
139	*/
140	static void
141	sbtoxsockbuf(struct sockbuf sb, struct xsockbuf xsb)
142	{
143	xsb->sb_cc = sb->sb_cc;
144	xsb->sb_hiwat = sb->sb_hiwat;
145	xsb->sb_mbcnt = sb->sb_mbcnt;
146	xsb->sb_mcnt = sb->sb_mcnt;
147	xsb->sb_ccnt = sb->sb_ccnt;
148	xsb->sb_mbmax = sb->sb_mbmax;
149	xsb->sb_lowat = sb->sb_lowat;
150	xsb->sb_flags = sb->sb_flags;
151	xsb->sb_timeo = sb->sb_timeo;
152	}
153
154	int
155	sotoxsocket(struct socket so, struct xsocket xso)
156	{
157	struct protosw proto;
158	struct domain domain;
159
160	bzero(xso, sizeof *xso);
161	xso->xso_len = sizeof *xso;
162	xso->xso_so = so;
163	xso->so_type = so->so_type;
164	xso->so_options = so->so_options;
165	xso->so_linger = so->so_linger;
166	xso->so_state = so->so_state;
167	xso->so_pcb = so->so_pcb;
168	if (kread((uintptr_t)so->so_proto, &proto, sizeof(proto)) != 0)
169	return (-1);
170	xso->xso_protocol = proto.pr_protocol;
171	if (kread((uintptr_t)proto.pr_domain, &domain, sizeof(domain)) != 0)
172	return (-1);
173	xso->xso_family = domain.dom_family;
174	xso->so_qlen = so->so_qlen;
175	xso->so_incqlen = so->so_incqlen;
176	xso->so_qlimit = so->so_qlimit;
177	xso->so_timeo = so->so_timeo;
178	xso->so_error = so->so_error;
179	xso->so_oobmark = so->so_oobmark;
180	sbtoxsockbuf(&so->so_snd, &xso->so_snd);
181	sbtoxsockbuf(&so->so_rcv, &xso->so_rcv);
182	return (0);
183	}
184
185	static int
186	pcblist_kvm(u_long off, char **bufp, int istcp)
187	{
188	struct inpcbinfo pcbinfo;
189	struct inpcbhead listhead;
190	struct inpcb *inp;
191	struct xinpcb xi;
192	struct xinpgen xig;
193	struct xtcpcb xt;
194	struct socket so;
195	struct xsocket *xso;
196	char buf, p;
197	size_t len;
198
199	if (off == 0)
200	return (0);
201	kread(off, &pcbinfo, sizeof(pcbinfo));
202	if (istcp)
203	len = 2 * sizeof(xig) +
204	(pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
205	sizeof(struct xtcpcb);
206	else
207	len = 2 * sizeof(xig) +
208	(pcbinfo.ipi_count + pcbinfo.ipi_count / 8) *
209	sizeof(struct xinpcb);
210	if ((buf = malloc(len)) == 0) {
211	warnx("malloc %lu bytes", (u_long)len);
212	return (0);
213	}
214	p = buf;
215
216	#define COPYOUT(obj, size) do { \
217	if (len < (size)) { \
218	warnx("buffer size exceeded"); \
219	goto fail; \
220	} \
221	bcopy((obj), p, (size)); \
222	len -= (size); \
223	p += (size); \
224	} while (0)
225
226	#define KREAD(off, buf, len) do { \
227	if (kread((uintptr_t)(off), (buf), (len)) != 0) \
228	goto fail; \
229	} while (0)
230
231	/* Write out header. */
232	xig.xig_len = sizeof xig;
233	xig.xig_count = pcbinfo.ipi_count;
234	xig.xig_gen = pcbinfo.ipi_gencnt;
235	xig.xig_sogen = 0;
236	COPYOUT(&xig, sizeof xig);
237
238	/* Walk the PCB list. */
239	xt.xt_len = sizeof xt;
240	xi.xi_len = sizeof xi;
241	if (istcp)
242	xso = &xt.xt_socket;
243	else
244	xso = &xi.xi_socket;
245	KREAD(pcbinfo.ipi_listhead, &listhead, sizeof(listhead));
246	LIST_FOREACH(inp, &listhead, inp_list) {
247	if (istcp) {
248	KREAD(inp, &xt.xt_inp, sizeof(*inp));
249	inp = &xt.xt_inp;
250	} else {
251	KREAD(inp, &xi.xi_inp, sizeof(*inp));
252	inp = &xi.xi_inp;
253	}
254
255	if (inp->inp_gencnt > pcbinfo.ipi_gencnt)
256	continue;
257
258	if (istcp) {
259	if (inp->inp_ppcb == NULL)
260	bzero(&xt.xt_tp, sizeof xt.xt_tp);
261	else if (inp->inp_flags & INP_TIMEWAIT) {
262	bzero(&xt.xt_tp, sizeof xt.xt_tp);
263	xt.xt_tp.t_state = TCPS_TIME_WAIT;
264	} else
265	KREAD(inp->inp_ppcb, &xt.xt_tp,
266	sizeof xt.xt_tp);
267	}
268	if (inp->inp_socket) {
269	KREAD(inp->inp_socket, &so, sizeof(so));
270	if (sotoxsocket(&so, xso) != 0)
271	goto fail;
272	} else {
273	bzero(xso, sizeof(*xso));
274	if (istcp)
275	xso->xso_protocol = IPPROTO_TCP;
276	}
277	if (istcp)
278	COPYOUT(&xt, sizeof xt);
279	else
280	COPYOUT(&xi, sizeof xi);
281	}
282
283	/* Reread the pcbinfo and write out the footer. */
284	kread(off, &pcbinfo, sizeof(pcbinfo));
285	xig.xig_count = pcbinfo.ipi_count;
286	xig.xig_gen = pcbinfo.ipi_gencnt;
287	COPYOUT(&xig, sizeof xig);
288
289	*bufp = buf;
290	return (1);
291
292	fail:
293	free(buf);
294	return (0);
295	#undef COPYOUT
296	#undef KREAD
297	}
298
299	/*
300	* Print a summary of connections related to an Internet
301	* protocol. For TCP, also give state of connection.
302	* Listening processes (aflag) are suppressed unless the
303	* -a (all) flag is specified.
304	*/
305	void
306	protopr(u_long off, const char *name, int af1, int proto)
307	{
308	int istcp;
309	char *buf;
310	const char *vchar;
311	struct tcpcb *tp = NULL;
312	struct inpcb *inp;
313	struct xinpgen xig, oxig;
314	struct xsocket *so;
315
316	istcp = 0;
317	switch (proto) {
318	case IPPROTO_TCP:
319	#ifdef INET6
320	if (tcp_done != 0)
321	return;
322	else
323	tcp_done = 1;
324	#endif
325	istcp = 1;
326	break;
327	case IPPROTO_UDP:
328	#ifdef INET6
329	if (udp_done != 0)
330	return;
331	else
332	udp_done = 1;
333	#endif
334	break;
335	}
336	if (live) {
337	if (!pcblist_sysctl(proto, &buf, istcp))
338	return;
339	} else {
340	if (!pcblist_kvm(off, &buf, istcp))
341	return;
342	}
343
344	oxig = xig = (struct xinpgen *)buf;
345	for (xig = (struct xinpgen )((char )xig + xig->xig_len);
346	xig->xig_len > sizeof(struct xinpgen);
347	xig = (struct xinpgen )((char )xig + xig->xig_len)) {
348	if (istcp) {
349	tp = &((struct xtcpcb *)xig)->xt_tp;
350	inp = &((struct xtcpcb *)xig)->xt_inp;
351	so = &((struct xtcpcb *)xig)->xt_socket;
352	} else {
353	inp = &((struct xinpcb *)xig)->xi_inp;
354	so = &((struct xinpcb *)xig)->xi_socket;
355	}
356
357	/* Ignore sockets for protocols other than the desired one. */
358	if (so->xso_protocol != proto)
359	continue;
360
361	/* Ignore PCBs which were freed during copyout. */
362	if (inp->inp_gencnt > oxig->xig_gen)
363	continue;
364
365	if ((af1 == AF_INET && (inp->inp_vflag & INP_IPV4) == 0)
366	#ifdef INET6
367	\|\| (af1 == AF_INET6 && (inp->inp_vflag & INP_IPV6) == 0)
368	#endif /* INET6 */
369	\|\| (af1 == AF_UNSPEC && ((inp->inp_vflag & INP_IPV4) == 0
370	#ifdef INET6
371	&& (inp->inp_vflag & INP_IPV6) == 0
372	#endif /* INET6 */
373	))
374	)
375	continue;
376	if (!aflag &&
377	(
378	(istcp && tp->t_state == TCPS_LISTEN)
379	\|\| (af1 == AF_INET &&
380	inet_lnaof(inp->inp_laddr) == INADDR_ANY)
381	#ifdef INET6
382	\|\| (af1 == AF_INET6 &&
383	IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
384	#endif /* INET6 */
385	\|\| (af1 == AF_UNSPEC &&
386	(((inp->inp_vflag & INP_IPV4) != 0 &&
387	inet_lnaof(inp->inp_laddr) == INADDR_ANY)
388	#ifdef INET6
389	\|\| ((inp->inp_vflag & INP_IPV6) != 0 &&
390	IN6_IS_ADDR_UNSPECIFIED(&inp->in6p_laddr))
391	#endif
392	))
393	))
394	continue;
395
396	if (!protopr_initialized) {
397	if (!Lflag) {
398	printf("Active Internet connections");
399	if (aflag)
400	printf(" (including servers)");
401	} else
402	printf(
403	"Current listen queue sizes (qlen/incqlen/maxqlen)");
404	putchar('\n');
405	if (Aflag)
406	printf("%-8.8s ", "Tcpcb");
407	if (Lflag)
408	printf("%-5.5s %-14.14s %-22.22s\n",
409	"Proto", "Listen", "Local Address");
410	else {
411	printf((Aflag && !Wflag) ?
412	"%-5.5s %-6.6s %-6.6s %-18.18s %-18.18s" :
413	"%-5.5s %-6.6s %-6.6s %-22.22s %-22.22s",
414	"Proto", "Recv-Q", "Send-Q",
415	"Local Address", "Foreign Address");
416	if (xflag)
417	printf("%-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %-6.6s %s\n",
418	"R-MBUF", "S-MBUF", "R-CLUS",
419	"S-CLUS", "R-HIWA", "S-HIWA",
420	"R-LOWA", "S-LOWA", "R-BCNT",
421	"S-BCNT", "R-BMAX", "S-BMAX",
422	"(state)");
423	else
424	printf("(state)\n");
425	}
426	protopr_initialized = 1;
427	}
428	if (Lflag && so->so_qlimit == 0)
429	continue;
430	if (Aflag) {
431	if (istcp)
432	printf("%8lx ", (u_long)inp->inp_ppcb);
433	else
434	printf("%8lx ", (u_long)so->so_pcb);
435	}
436	#ifdef INET6
437	if ((inp->inp_vflag & INP_IPV6) != 0)
438	vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
439	"46" : "6 ";
440	else
441	#endif
442	vchar = ((inp->inp_vflag & INP_IPV4) != 0) ?
443	"4 " : " ";
444	printf("%-3.3s%-2.2s ", name, vchar);
445	if (Lflag) {
446	char buf1[15];
447
448	snprintf(buf1, 15, "%d/%d/%d", so->so_qlen,
449	so->so_incqlen, so->so_qlimit);
450	printf("%-14.14s ", buf1);
451	} else {
452	printf("%6u %6u ", so->so_rcv.sb_cc, so->so_snd.sb_cc);
453	}
454	if (numeric_port) {
455	if (inp->inp_vflag & INP_IPV4) {
456	inetprint(&inp->inp_laddr, (int)inp->inp_lport,
457	name, 1);
458	if (!Lflag)
459	inetprint(&inp->inp_faddr,
460	(int)inp->inp_fport, name, 1);
461	}
462	#ifdef INET6
463	else if (inp->inp_vflag & INP_IPV6) {
464	inet6print(&inp->in6p_laddr,
465	(int)inp->inp_lport, name, 1);
466	if (!Lflag)
467	inet6print(&inp->in6p_faddr,
468	(int)inp->inp_fport, name, 1);
469	} /* else nothing printed now */
470	#endif /* INET6 */
471	} else if (inp->inp_flags & INP_ANONPORT) {
472	if (inp->inp_vflag & INP_IPV4) {
473	inetprint(&inp->inp_laddr, (int)inp->inp_lport,
474	name, 1);
475	if (!Lflag)
476	inetprint(&inp->inp_faddr,
477	(int)inp->inp_fport, name, 0);
478	}
479	#ifdef INET6
480	else if (inp->inp_vflag & INP_IPV6) {
481	inet6print(&inp->in6p_laddr,
482	(int)inp->inp_lport, name, 1);
483	if (!Lflag)
484	inet6print(&inp->in6p_faddr,
485	(int)inp->inp_fport, name, 0);
486	} /* else nothing printed now */
487	#endif /* INET6 */
488	} else {
489	if (inp->inp_vflag & INP_IPV4) {
490	inetprint(&inp->inp_laddr, (int)inp->inp_lport,
491	name, 0);
492	if (!Lflag)
493	inetprint(&inp->inp_faddr,
494	(int)inp->inp_fport, name,
495	inp->inp_lport != inp->inp_fport);
496	}
497	#ifdef INET6
498	else if (inp->inp_vflag & INP_IPV6) {
499	inet6print(&inp->in6p_laddr,
500	(int)inp->inp_lport, name, 0);
501	if (!Lflag)
502	inet6print(&inp->in6p_faddr,
503	(int)inp->inp_fport, name,
504	inp->inp_lport != inp->inp_fport);
505	} /* else nothing printed now */
506	#endif /* INET6 */
507	}
508	if (xflag) {
509	if (Lflag)
510	printf("%21s %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u ",
511	" ",
512	so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
513	so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
514	so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
515	so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
516	so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
517	so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
518	else
519	printf("%6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u %6u ",
520	so->so_rcv.sb_mcnt, so->so_snd.sb_mcnt,
521	so->so_rcv.sb_ccnt, so->so_snd.sb_ccnt,
522	so->so_rcv.sb_hiwat, so->so_snd.sb_hiwat,
523	so->so_rcv.sb_lowat, so->so_snd.sb_lowat,
524	so->so_rcv.sb_mbcnt, so->so_snd.sb_mbcnt,
525	so->so_rcv.sb_mbmax, so->so_snd.sb_mbmax);
526	}
527	if (istcp && !Lflag) {
528	if (tp->t_state < 0 \|\| tp->t_state >= TCP_NSTATES)
529	printf("%d", tp->t_state);
530	else {
531	printf("%s", tcpstates[tp->t_state]);
532	#if defined(TF_NEEDSYN) && defined(TF_NEEDFIN)
533	/* Show T/TCP `hidden state' */
534	if (tp->t_flags & (TF_NEEDSYN\|TF_NEEDFIN))
535	putchar('*');
536	#endif /* defined(TF_NEEDSYN) && defined(TF_NEEDFIN) */
537	}
538	}
539	putchar('\n');
540	}
541	if (xig != oxig && xig->xig_gen != oxig->xig_gen) {
542	if (oxig->xig_count > xig->xig_count) {
543	printf("Some %s sockets may have been deleted.\n",
544	name);
545	} else if (oxig->xig_count < xig->xig_count) {
546	printf("Some %s sockets may have been created.\n",
547	name);
548	} else {
549	printf(
550	"Some %s sockets may have been created or deleted.\n",
551	name);
552	}
553	}
554	free(buf);
555	}
556
557	/*
558	* Dump TCP statistics structure.
559	*/
560	void
561	tcp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
562	{
563	struct tcpstat tcpstat, zerostat;
564	size_t len = sizeof tcpstat;
565
566	#ifdef INET6
567	if (tcp_done != 0)
568	return;
569	else
570	tcp_done = 1;
571	#endif
572
573	if (live) {
574	if (zflag)
575	memset(&zerostat, 0, len);
576	if (sysctlbyname("net.inet.tcp.stats", &tcpstat, &len,
577	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
578	warn("sysctl: net.inet.tcp.stats");
579	return;
580	}
581	} else
582	kread(off, &tcpstat, len);
583
584	printf ("%s:\n", name);
585
586	#define p(f, m) if (tcpstat.f \|\| sflag <= 1) \
587	printf(m, tcpstat.f, plural(tcpstat.f))
588	#define p1a(f, m) if (tcpstat.f \|\| sflag <= 1) \
589	printf(m, tcpstat.f)
590	#define p2(f1, f2, m) if (tcpstat.f1 \|\| tcpstat.f2 \|\| sflag <= 1) \
591	printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2, plural(tcpstat.f2))
592	#define p2a(f1, f2, m) if (tcpstat.f1 \|\| tcpstat.f2 \|\| sflag <= 1) \
593	printf(m, tcpstat.f1, plural(tcpstat.f1), tcpstat.f2)
594	#define p3(f, m) if (tcpstat.f \|\| sflag <= 1) \
595	printf(m, tcpstat.f, pluralies(tcpstat.f))
596
597	p(tcps_sndtotal, "\t%lu packet%s sent\n");
598	p2(tcps_sndpack,tcps_sndbyte, "\t\t%lu data packet%s (%lu byte%s)\n");
599	p2(tcps_sndrexmitpack, tcps_sndrexmitbyte,
600	"\t\t%lu data packet%s (%lu byte%s) retransmitted\n");
601	p(tcps_sndrexmitbad,
602	"\t\t%lu data packet%s unnecessarily retransmitted\n");
603	p(tcps_mturesent, "\t\t%lu resend%s initiated by MTU discovery\n");
604	p2a(tcps_sndacks, tcps_delack,
605	"\t\t%lu ack-only packet%s (%lu delayed)\n");
606	p(tcps_sndurg, "\t\t%lu URG only packet%s\n");
607	p(tcps_sndprobe, "\t\t%lu window probe packet%s\n");
608	p(tcps_sndwinup, "\t\t%lu window update packet%s\n");
609	p(tcps_sndctrl, "\t\t%lu control packet%s\n");
610	p(tcps_rcvtotal, "\t%lu packet%s received\n");
611	p2(tcps_rcvackpack, tcps_rcvackbyte,
612	"\t\t%lu ack%s (for %lu byte%s)\n");
613	p(tcps_rcvdupack, "\t\t%lu duplicate ack%s\n");
614	p(tcps_rcvacktoomuch, "\t\t%lu ack%s for unsent data\n");
615	p2(tcps_rcvpack, tcps_rcvbyte,
616	"\t\t%lu packet%s (%lu byte%s) received in-sequence\n");
617	p2(tcps_rcvduppack, tcps_rcvdupbyte,
618	"\t\t%lu completely duplicate packet%s (%lu byte%s)\n");
619	p(tcps_pawsdrop, "\t\t%lu old duplicate packet%s\n");
620	p2(tcps_rcvpartduppack, tcps_rcvpartdupbyte,
621	"\t\t%lu packet%s with some dup. data (%lu byte%s duped)\n");
622	p2(tcps_rcvoopack, tcps_rcvoobyte,
623	"\t\t%lu out-of-order packet%s (%lu byte%s)\n");
624	p2(tcps_rcvpackafterwin, tcps_rcvbyteafterwin,
625	"\t\t%lu packet%s (%lu byte%s) of data after window\n");
626	p(tcps_rcvwinprobe, "\t\t%lu window probe%s\n");
627	p(tcps_rcvwinupd, "\t\t%lu window update packet%s\n");
628	p(tcps_rcvafterclose, "\t\t%lu packet%s received after close\n");
629	p(tcps_rcvbadsum, "\t\t%lu discarded for bad checksum%s\n");
630	p(tcps_rcvbadoff, "\t\t%lu discarded for bad header offset field%s\n");
631	p1a(tcps_rcvshort, "\t\t%lu discarded because packet too short\n");
632	p1a(tcps_rcvmemdrop, "\t\t%lu discarded due to memory problems\n");
633	p(tcps_connattempt, "\t%lu connection request%s\n");
634	p(tcps_accepts, "\t%lu connection accept%s\n");
635	p(tcps_badsyn, "\t%lu bad connection attempt%s\n");
636	p(tcps_listendrop, "\t%lu listen queue overflow%s\n");
637	p(tcps_badrst, "\t%lu ignored RSTs in the window%s\n");
638	p(tcps_connects, "\t%lu connection%s established (including accepts)\n");
639	p2(tcps_closed, tcps_drops,
640	"\t%lu connection%s closed (including %lu drop%s)\n");
641	p(tcps_cachedrtt, "\t\t%lu connection%s updated cached RTT on close\n");
642	p(tcps_cachedrttvar,
643	"\t\t%lu connection%s updated cached RTT variance on close\n");
644	p(tcps_cachedssthresh,
645	"\t\t%lu connection%s updated cached ssthresh on close\n");
646	p(tcps_conndrops, "\t%lu embryonic connection%s dropped\n");
647	p2(tcps_rttupdated, tcps_segstimed,
648	"\t%lu segment%s updated rtt (of %lu attempt%s)\n");
649	p(tcps_rexmttimeo, "\t%lu retransmit timeout%s\n");
650	p(tcps_timeoutdrop, "\t\t%lu connection%s dropped by rexmit timeout\n");
651	p(tcps_persisttimeo, "\t%lu persist timeout%s\n");
652	p(tcps_persistdrop, "\t\t%lu connection%s dropped by persist timeout\n");
653	p(tcps_finwait2_drops,
654	"\t%lu Connection%s (fin_wait_2) dropped because of timeout\n");
655	p(tcps_keeptimeo, "\t%lu keepalive timeout%s\n");
656	p(tcps_keepprobe, "\t\t%lu keepalive probe%s sent\n");
657	p(tcps_keepdrops, "\t\t%lu connection%s dropped by keepalive\n");
658	p(tcps_predack, "\t%lu correct ACK header prediction%s\n");
659	p(tcps_preddat, "\t%lu correct data packet header prediction%s\n");
660
661	p3(tcps_sc_added, "\t%lu syncache entr%s added\n");
662	p1a(tcps_sc_retransmitted, "\t\t%lu retransmitted\n");
663	p1a(tcps_sc_dupsyn, "\t\t%lu dupsyn\n");
664	p1a(tcps_sc_dropped, "\t\t%lu dropped\n");
665	p1a(tcps_sc_completed, "\t\t%lu completed\n");
666	p1a(tcps_sc_bucketoverflow, "\t\t%lu bucket overflow\n");
667	p1a(tcps_sc_cacheoverflow, "\t\t%lu cache overflow\n");
668	p1a(tcps_sc_reset, "\t\t%lu reset\n");
669	p1a(tcps_sc_stale, "\t\t%lu stale\n");
670	p1a(tcps_sc_aborted, "\t\t%lu aborted\n");
671	p1a(tcps_sc_badack, "\t\t%lu badack\n");
672	p1a(tcps_sc_unreach, "\t\t%lu unreach\n");
673	p(tcps_sc_zonefail, "\t\t%lu zone failure%s\n");
674	p(tcps_sc_sendcookie, "\t%lu cookie%s sent\n");
675	p(tcps_sc_recvcookie, "\t%lu cookie%s received\n");
676
677	p(tcps_sack_recovery_episode, "\t%lu SACK recovery episode%s\n");
678	p(tcps_sack_rexmits,
679	"\t%lu segment rexmit%s in SACK recovery episodes\n");
680	p(tcps_sack_rexmit_bytes,
681	"\t%lu byte rexmit%s in SACK recovery episodes\n");
682	p(tcps_sack_rcv_blocks,
683	"\t%lu SACK option%s (SACK blocks) received\n");
684	p(tcps_sack_send_blocks, "\t%lu SACK option%s (SACK blocks) sent\n");
685	p1a(tcps_sack_sboverflow, "\t%lu SACK scoreboard overflow\n");
686
687	p(tcps_ecn_ce, "\t%lu packet%s with ECN CE bit set\n");
688	p(tcps_ecn_ect0, "\t%lu packet%s with ECN ECT(0) bit set\n");
689	p(tcps_ecn_ect1, "\t%lu packet%s with ECN ECT(1) bit set\n");
690	p(tcps_ecn_shs, "\t%lu successful ECN handshake%s\n");
691	p(tcps_ecn_rcwnd, "\t%lu time%s ECN reduced the congestion window\n");
692	#undef p
693	#undef p1a
694	#undef p2
695	#undef p2a
696	#undef p3
697	}
698
699	/*
700	* Dump UDP statistics structure.
701	*/
702	void
703	udp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
704	{
705	struct udpstat udpstat, zerostat;
706	size_t len = sizeof udpstat;
707	u_long delivered;
708
709	#ifdef INET6
710	if (udp_done != 0)
711	return;
712	else
713	udp_done = 1;
714	#endif
715
716	if (live) {
717	if (zflag)
718	memset(&zerostat, 0, len);
719	if (sysctlbyname("net.inet.udp.stats", &udpstat, &len,
720	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
721	warn("sysctl: net.inet.udp.stats");
722	return;
723	}
724	} else
725	kread(off, &udpstat, len);
726
727	printf("%s:\n", name);
728	#define p(f, m) if (udpstat.f \|\| sflag <= 1) \
729	printf(m, udpstat.f, plural(udpstat.f))
730	#define p1a(f, m) if (udpstat.f \|\| sflag <= 1) \
731	printf(m, udpstat.f)
732	p(udps_ipackets, "\t%lu datagram%s received\n");
733	p1a(udps_hdrops, "\t%lu with incomplete header\n");
734	p1a(udps_badlen, "\t%lu with bad data length field\n");
735	p1a(udps_badsum, "\t%lu with bad checksum\n");
736	p1a(udps_nosum, "\t%lu with no checksum\n");
737	p1a(udps_noport, "\t%lu dropped due to no socket\n");
738	p(udps_noportbcast,
739	"\t%lu broadcast/multicast datagram%s undelivered\n");
740	p1a(udps_fullsock, "\t%lu dropped due to full socket buffers\n");
741	p1a(udpps_pcbhashmiss, "\t%lu not for hashed pcb\n");
742	delivered = udpstat.udps_ipackets -
743	udpstat.udps_hdrops -
744	udpstat.udps_badlen -
745	udpstat.udps_badsum -
746	udpstat.udps_noport -
747	udpstat.udps_noportbcast -
748	udpstat.udps_fullsock;
749	if (delivered \|\| sflag <= 1)
750	printf("\t%lu delivered\n", delivered);
751	p(udps_opackets, "\t%lu datagram%s output\n");
752	/* the next statistic is cumulative in udps_noportbcast */
753	p(udps_filtermcast,
754	"\t%lu time%s multicast source filter matched\n");
755	#undef p
756	#undef p1a
757	}
758
759	/*
760	* Dump CARP statistics structure.
761	*/
762	void
763	carp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
764	{
765	struct carpstats carpstat, zerostat;
766	size_t len = sizeof(struct carpstats);
767
768	if (live) {
769	if (zflag)
770	memset(&zerostat, 0, len);
771	if (sysctlbyname("net.inet.carp.stats", &carpstat, &len,
772	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
773	if (errno != ENOENT)
774	warn("sysctl: net.inet.carp.stats");
775	return;
776	}
777	} else {
778	if (off == 0)
779	return;
780	kread(off, &carpstat, len);
781	}
782
783	printf("%s:\n", name);
784
785	#define p(f, m) if (carpstat.f \|\| sflag <= 1) \
786	printf(m, (uintmax_t)carpstat.f, plural(carpstat.f))
787	#define p2(f, m) if (carpstat.f \|\| sflag <= 1) \
788	printf(m, (uintmax_t)carpstat.f)
789
790	p(carps_ipackets, "\t%ju packet%s received (IPv4)\n");
791	p(carps_ipackets6, "\t%ju packet%s received (IPv6)\n");
792	p(carps_badttl, "\t\t%ju packet%s discarded for wrong TTL\n");
793	p(carps_hdrops, "\t\t%ju packet%s shorter than header\n");
794	p(carps_badsum, "\t\t%ju discarded for bad checksum%s\n");
795	p(carps_badver, "\t\t%ju discarded packet%s with a bad version\n");
796	p2(carps_badlen, "\t\t%ju discarded because packet too short\n");
797	p2(carps_badauth, "\t\t%ju discarded for bad authentication\n");
798	p2(carps_badvhid, "\t\t%ju discarded for bad vhid\n");
799	p2(carps_badaddrs, "\t\t%ju discarded because of a bad address list\n");
800	p(carps_opackets, "\t%ju packet%s sent (IPv4)\n");
801	p(carps_opackets6, "\t%ju packet%s sent (IPv6)\n");
802	p2(carps_onomem, "\t\t%ju send failed due to mbuf memory error\n");
803	#if notyet
804	p(carps_ostates, "\t\t%s state update%s sent\n");
805	#endif
806	#undef p
807	#undef p2
808	}
809
810	/*
811	* Dump IP statistics structure.
812	*/
813	void
814	ip_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
815	{
816	struct ipstat ipstat, zerostat;
817	size_t len = sizeof ipstat;
818
819	if (live) {
820	if (zflag)
821	memset(&zerostat, 0, len);
822	if (sysctlbyname("net.inet.ip.stats", &ipstat, &len,
823	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
824	warn("sysctl: net.inet.ip.stats");
825	return;
826	}
827	} else
828	kread(off, &ipstat, len);
829
830	printf("%s:\n", name);
831
832	#define p(f, m) if (ipstat.f \|\| sflag <= 1) \
833	printf(m, ipstat.f, plural(ipstat.f))
834	#define p1a(f, m) if (ipstat.f \|\| sflag <= 1) \
835	printf(m, ipstat.f)
836
837	p(ips_total, "\t%lu total packet%s received\n");
838	p(ips_badsum, "\t%lu bad header checksum%s\n");
839	p1a(ips_toosmall, "\t%lu with size smaller than minimum\n");
840	p1a(ips_tooshort, "\t%lu with data size < data length\n");
841	p1a(ips_toolong, "\t%lu with ip length > max ip packet size\n");
842	p1a(ips_badhlen, "\t%lu with header length < data size\n");
843	p1a(ips_badlen, "\t%lu with data length < header length\n");
844	p1a(ips_badoptions, "\t%lu with bad options\n");
845	p1a(ips_badvers, "\t%lu with incorrect version number\n");
846	p(ips_fragments, "\t%lu fragment%s received\n");
847	p(ips_fragdropped, "\t%lu fragment%s dropped (dup or out of space)\n");
848	p(ips_fragtimeout, "\t%lu fragment%s dropped after timeout\n");
849	p(ips_reassembled, "\t%lu packet%s reassembled ok\n");
850	p(ips_delivered, "\t%lu packet%s for this host\n");
851	p(ips_noproto, "\t%lu packet%s for unknown/unsupported protocol\n");
852	p(ips_forward, "\t%lu packet%s forwarded");
853	p(ips_fastforward, " (%lu packet%s fast forwarded)");
854	if (ipstat.ips_forward \|\| sflag <= 1)
855	putchar('\n');
856	p(ips_cantforward, "\t%lu packet%s not forwardable\n");
857	p(ips_notmember,
858	"\t%lu packet%s received for unknown multicast group\n");
859	p(ips_redirectsent, "\t%lu redirect%s sent\n");
860	p(ips_localout, "\t%lu packet%s sent from this host\n");
861	p(ips_rawout, "\t%lu packet%s sent with fabricated ip header\n");
862	p(ips_odropped,
863	"\t%lu output packet%s dropped due to no bufs, etc.\n");
864	p(ips_noroute, "\t%lu output packet%s discarded due to no route\n");
865	p(ips_fragmented, "\t%lu output datagram%s fragmented\n");
866	p(ips_ofragments, "\t%lu fragment%s created\n");
867	p(ips_cantfrag, "\t%lu datagram%s that can't be fragmented\n");
868	p(ips_nogif, "\t%lu tunneling packet%s that can't find gif\n");
869	p(ips_badaddr, "\t%lu datagram%s with bad address in header\n");
870	#undef p
871	#undef p1a
872	}
873
874	/*
875	* Dump ARP statistics structure.
876	*/
877	void
878	arp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
879	{
880	struct arpstat arpstat, zerostat;
881	size_t len = sizeof(arpstat);
882
883	if (live) {
884	if (zflag)
885	memset(&zerostat, 0, len);
886	if (sysctlbyname("net.link.ether.arp.stats", &arpstat, &len,
887	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
888	warn("sysctl: net.link.ether.arp.stats");
889	return;
890	}
891	} else
892	kread(off, &arpstat, len);
893
894	printf("%s:\n", name);
895
896	#define p(f, m) if (arpstat.f \|\| sflag <= 1) \
897	printf(m, arpstat.f, plural(arpstat.f))
898	#define p2(f, m) if (arpstat.f \|\| sflag <= 1) \
899	printf(m, arpstat.f, pluralies(arpstat.f))
900
901	p(txrequests, "\t%lu ARP request%s sent\n");
902	p2(txreplies, "\t%lu ARP repl%s sent\n");
903	p(rxrequests, "\t%lu ARP request%s received\n");
904	p2(rxreplies, "\t%lu ARP repl%s received\n");
905	p(received, "\t%lu ARP packet%s received\n");
906	p(dropped, "\t%lu total packet%s dropped due to no ARP entry\n");
907	p(timeouts, "\t%lu ARP entry%s timed out\n");
908	p(dupips, "\t%lu Duplicate IP%s seen\n");
909	#undef p
910	#undef p2
911	}
912
913
914
915	static const char *const icmpnames[ICMP_MAXTYPE + 1] = {
916	"echo reply", /* RFC 792 */
917	"#1",
918	"#2",
919	"destination unreachable", /* RFC 792 */
920	"source quench", /* RFC 792 */
921	"routing redirect", /* RFC 792 */
922	"#6",
923	"#7",
924	"echo", /* RFC 792 */
925	"router advertisement", /* RFC 1256 */
926	"router solicitation", /* RFC 1256 */
927	"time exceeded", /* RFC 792 */
928	"parameter problem", /* RFC 792 */
929	"time stamp", /* RFC 792 */
930	"time stamp reply", /* RFC 792 */
931	"information request", /* RFC 792 */
932	"information request reply", /* RFC 792 */
933	"address mask request", /* RFC 950 */
934	"address mask reply", /* RFC 950 */
935	"#19",
936	"#20",
937	"#21",
938	"#22",
939	"#23",
940	"#24",
941	"#25",
942	"#26",
943	"#27",
944	"#28",
945	"#29",
946	"icmp traceroute", /* RFC 1393 */
947	"datagram conversion error", /* RFC 1475 */
948	"mobile host redirect",
949	"IPv6 where-are-you",
950	"IPv6 i-am-here",
951	"mobile registration req",
952	"mobile registration reply",
953	"domain name request", /* RFC 1788 */
954	"domain name reply", /* RFC 1788 */
955	"icmp SKIP",
956	"icmp photuris", /* RFC 2521 */
957	};
958
959	/*
960	* Dump ICMP statistics.
961	*/
962	void
963	icmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
964	{
965	struct icmpstat icmpstat, zerostat;
966	int i, first;
967	size_t len;
968
969	len = sizeof icmpstat;
970	if (live) {
971	if (zflag)
972	memset(&zerostat, 0, len);
973	if (sysctlbyname("net.inet.icmp.stats", &icmpstat, &len,
974	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
975	warn("sysctl: net.inet.icmp.stats");
976	return;
977	}
978	} else
979	kread(off, &icmpstat, len);
980
981	printf("%s:\n", name);
982
983	#define p(f, m) if (icmpstat.f \|\| sflag <= 1) \
984	printf(m, icmpstat.f, plural(icmpstat.f))
985	#define p1a(f, m) if (icmpstat.f \|\| sflag <= 1) \
986	printf(m, icmpstat.f)
987	#define p2(f, m) if (icmpstat.f \|\| sflag <= 1) \
988	printf(m, icmpstat.f, plurales(icmpstat.f))
989
990	p(icps_error, "\t%lu call%s to icmp_error\n");
991	p(icps_oldicmp,
992	"\t%lu error%s not generated in response to an icmp message\n");
993	for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
994	if (icmpstat.icps_outhist[i] != 0) {
995	if (first) {
996	printf("\tOutput histogram:\n");
997	first = 0;
998	}
999	if (icmpnames[i] != NULL)
1000	printf("\t\t%s: %lu\n", icmpnames[i],
1001	icmpstat.icps_outhist[i]);
1002	else
1003	printf("\t\tunknown ICMP #%d: %lu\n", i,
1004	icmpstat.icps_outhist[i]);
1005	}
1006	p(icps_badcode, "\t%lu message%s with bad code fields\n");
1007	p(icps_tooshort, "\t%lu message%s less than the minimum length\n");
1008	p(icps_checksum, "\t%lu message%s with bad checksum\n");
1009	p(icps_badlen, "\t%lu message%s with bad length\n");
1010	p1a(icps_bmcastecho, "\t%lu multicast echo requests ignored\n");
1011	p1a(icps_bmcasttstamp, "\t%lu multicast timestamp requests ignored\n");
1012	for (first = 1, i = 0; i < ICMP_MAXTYPE + 1; i++)
1013	if (icmpstat.icps_inhist[i] != 0) {
1014	if (first) {
1015	printf("\tInput histogram:\n");
1016	first = 0;
1017	}
1018	if (icmpnames[i] != NULL)
1019	printf("\t\t%s: %lu\n", icmpnames[i],
1020	icmpstat.icps_inhist[i]);
1021	else
1022	printf("\t\tunknown ICMP #%d: %lu\n", i,
1023	icmpstat.icps_inhist[i]);
1024	}
1025	p(icps_reflect, "\t%lu message response%s generated\n");
1026	p2(icps_badaddr, "\t%lu invalid return address%s\n");
1027	p(icps_noroute, "\t%lu no return route%s\n");
1028	#undef p
1029	#undef p1a
1030	#undef p2
1031	if (live) {
1032	len = sizeof i;
1033	if (sysctlbyname("net.inet.icmp.maskrepl", &i, &len, NULL, 0) <
1034	0)
1035	return;
1036	printf("\tICMP address mask responses are %sabled\n",
1037	i ? "en" : "dis");
1038	}
1039	}
1040
1041	#ifndef BURN_BRIDGES
1042	/*
1043	* Dump IGMP statistics structure (pre 8.x kernel).
1044	*/
1045	static void
1046	igmp_stats_live_old(u_long off, const char *name)
1047	{
1048	struct oigmpstat oigmpstat, zerostat;
1049	size_t len = sizeof(oigmpstat);
1050
1051	if (zflag)
1052	memset(&zerostat, 0, len);
1053	if (sysctlbyname("net.inet.igmp.stats", &oigmpstat, &len,
1054	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1055	warn("sysctl: net.inet.igmp.stats");
1056	return;
1057	}
1058
1059	printf("%s:\n", name);
1060
1061	#define p(f, m) if (oigmpstat.f \|\| sflag <= 1) \
1062	printf(m, oigmpstat.f, plural(oigmpstat.f))
1063	#define py(f, m) if (oigmpstat.f \|\| sflag <= 1) \
1064	printf(m, oigmpstat.f, oigmpstat.f != 1 ? "ies" : "y")
1065	p(igps_rcv_total, "\t%u message%s received\n");
1066	p(igps_rcv_tooshort, "\t%u message%s received with too few bytes\n");
1067	p(igps_rcv_badsum, "\t%u message%s received with bad checksum\n");
1068	py(igps_rcv_queries, "\t%u membership quer%s received\n");
1069	py(igps_rcv_badqueries,
1070	"\t%u membership quer%s received with invalid field(s)\n");
1071	p(igps_rcv_reports, "\t%u membership report%s received\n");
1072	p(igps_rcv_badreports,
1073	"\t%u membership report%s received with invalid field(s)\n");
1074	p(igps_rcv_ourreports,
1075	"\t%u membership report%s received for groups to which we belong\n");
1076	p(igps_snd_reports, "\t%u membership report%s sent\n");
1077	#undef p
1078	#undef py
1079	}
1080	#endif /* !BURN_BRIDGES */
1081
1082	/*
1083	* Dump IGMP statistics structure.
1084	*/
1085	void
1086	igmp_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1087	{
1088	struct igmpstat igmpstat, zerostat;
1089	size_t len;
1090
1091	#ifndef BURN_BRIDGES
1092	if (live) {
1093	/*
1094	* Detect if we are being run against a pre-IGMPv3 kernel.
1095	* We cannot do this for a core file as the legacy
1096	* struct igmpstat has no size field, nor does it
1097	* export it in any readily-available symbols.
1098	*/
1099	len = 0;
1100	if (sysctlbyname("net.inet.igmp.stats", NULL, &len, NULL,
1101	0) < 0) {
1102	warn("sysctl: net.inet.igmp.stats");
1103	return;
1104	}
1105	if (len < sizeof(igmpstat)) {
1106	igmp_stats_live_old(off, name);
1107	return;
1108	}
1109	}
1110	#endif /* !BURN_BRIDGES */
1111
1112	len = sizeof(igmpstat);
1113	if (live) {
1114	if (zflag)
1115	memset(&zerostat, 0, len);
1116	if (sysctlbyname("net.inet.igmp.stats", &igmpstat, &len,
1117	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1118	warn("sysctl: net.inet.igmp.stats");
1119	return;
1120	}
1121	} else {
1122	len = sizeof(igmpstat);
1123	kread(off, &igmpstat, len);
1124	}
1125
1126	if (igmpstat.igps_version != IGPS_VERSION_3) {
1127	warnx("%s: version mismatch (%d != %d)", __func__,
1128	igmpstat.igps_version, IGPS_VERSION_3);
1129	}
1130	if (igmpstat.igps_len != IGPS_VERSION3_LEN) {
1131	warnx("%s: size mismatch (%d != %d)", __func__,
1132	igmpstat.igps_len, IGPS_VERSION3_LEN);
1133	}
1134
1135	printf("%s:\n", name);
1136
1137	#define p64(f, m) if (igmpstat.f \|\| sflag <= 1) \
1138	printf(m, (uintmax_t) igmpstat.f, plural(igmpstat.f))
1139	#define py64(f, m) if (igmpstat.f \|\| sflag <= 1) \
1140	printf(m, (uintmax_t) igmpstat.f, pluralies(igmpstat.f))
1141	p64(igps_rcv_total, "\t%ju message%s received\n");
1142	p64(igps_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1143	p64(igps_rcv_badttl, "\t%ju message%s received with wrong TTL\n");
1144	p64(igps_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1145	py64(igps_rcv_v1v2_queries, "\t%ju V1/V2 membership quer%s received\n");
1146	py64(igps_rcv_v3_queries, "\t%ju V3 membership quer%s received\n");
1147	py64(igps_rcv_badqueries,
1148	"\t%ju membership quer%s received with invalid field(s)\n");
1149	py64(igps_rcv_gen_queries, "\t%ju general quer%s received\n");
1150	py64(igps_rcv_group_queries, "\t%ju group quer%s received\n");
1151	py64(igps_rcv_gsr_queries, "\t%ju group-source quer%s received\n");
1152	py64(igps_drop_gsr_queries, "\t%ju group-source quer%s dropped\n");
1153	p64(igps_rcv_reports, "\t%ju membership report%s received\n");
1154	p64(igps_rcv_badreports,
1155	"\t%ju membership report%s received with invalid field(s)\n");
1156	p64(igps_rcv_ourreports,
1157	"\t%ju membership report%s received for groups to which we belong\n");
1158	p64(igps_rcv_nora, "\t%ju V3 report%s received without Router Alert\n");
1159	p64(igps_snd_reports, "\t%ju membership report%s sent\n");
1160	#undef p64
1161	#undef py64
1162	}
1163
1164	/*
1165	* Dump PIM statistics structure.
1166	*/
1167	void
1168	pim_stats(u_long off __unused, const char *name, int af1 __unused,
1169	int proto __unused)
1170	{
1171	struct pimstat pimstat, zerostat;
1172	size_t len = sizeof pimstat;
1173
1174	if (live) {
1175	if (zflag)
1176	memset(&zerostat, 0, len);
1177	if (sysctlbyname("net.inet.pim.stats", &pimstat, &len,
1178	zflag ? &zerostat : NULL, zflag ? len : 0) < 0) {
1179	if (errno != ENOENT)
1180	warn("sysctl: net.inet.pim.stats");
1181	return;
1182	}
1183	} else {
1184	if (off == 0)
1185	return;
1186	kread(off, &pimstat, len);
1187	}
1188
1189	printf("%s:\n", name);
1190
1191	#define p(f, m) if (pimstat.f \|\| sflag <= 1) \
1192	printf(m, (uintmax_t)pimstat.f, plural(pimstat.f))
1193	#define py(f, m) if (pimstat.f \|\| sflag <= 1) \
1194	printf(m, (uintmax_t)pimstat.f, pimstat.f != 1 ? "ies" : "y")
1195	p(pims_rcv_total_msgs, "\t%ju message%s received\n");
1196	p(pims_rcv_total_bytes, "\t%ju byte%s received\n");
1197	p(pims_rcv_tooshort, "\t%ju message%s received with too few bytes\n");
1198	p(pims_rcv_badsum, "\t%ju message%s received with bad checksum\n");
1199	p(pims_rcv_badversion, "\t%ju message%s received with bad version\n");
1200	p(pims_rcv_registers_msgs, "\t%ju data register message%s received\n");
1201	p(pims_rcv_registers_bytes, "\t%ju data register byte%s received\n");
1202	p(pims_rcv_registers_wrongiif,
1203	"\t%ju data register message%s received on wrong iif\n");
1204	p(pims_rcv_badregisters, "\t%ju bad register%s received\n");
1205	p(pims_snd_registers_msgs, "\t%ju data register message%s sent\n");
1206	p(pims_snd_registers_bytes, "\t%ju data register byte%s sent\n");
1207	#undef p
1208	#undef py
1209	}
1210
1211	/*
1212	* Pretty print an Internet address (net address + port).
1213	*/
1214	void
1215	inetprint(struct in_addr in, int port, const char proto, int num_port)
1216	{
1217	struct servent *sp = 0;
1218	char line[80], *cp;
1219	int width;
1220
1221	if (Wflag)
1222	sprintf(line, "%s.", inetname(in));
1223	else
1224	sprintf(line, "%.*s.", (Aflag && !num_port) ? 12 : 16, inetname(in));
1225	cp = index(line, '\0');
1226	if (!num_port && port)
1227	sp = getservbyport((int)port, proto);
1228	if (sp \|\| port == 0)
1229	sprintf(cp, "%.15s ", sp ? sp->s_name : "*");
1230	else
1231	sprintf(cp, "%d ", ntohs((u_short)port));
1232	width = (Aflag && !Wflag) ? 18 : 22;
1233	if (Wflag)
1234	printf("%-*s ", width, line);
1235	else
1236	printf("%-.s ", width, width, line);
1237	}
1238
1239	/*
1240	* Construct an Internet address representation.
1241	* If numeric_addr has been supplied, give
1242	* numeric value, otherwise try for symbolic name.
1243	*/
1244	char *
1245	inetname(struct in_addr *inp)
1246	{
1247	char *cp;
1248	static char line[MAXHOSTNAMELEN];
1249	struct hostent *hp;
1250	struct netent *np;
1251
1252	cp = 0;
1253	if (!numeric_addr && inp->s_addr != INADDR_ANY) {
1254	int net = inet_netof(*inp);
1255	int lna = inet_lnaof(*inp);
1256
1257	if (lna == INADDR_ANY) {
1258	np = getnetbyaddr(net, AF_INET);
1259	if (np)
1260	cp = np->n_name;
1261	}
1262	if (cp == 0) {
1263	hp = gethostbyaddr((char )inp, sizeof (inp), AF_INET);
1264	if (hp) {
1265	cp = hp->h_name;
1266	trimdomain(cp, strlen(cp));
1267	}
1268	}
1269	}
1270	if (inp->s_addr == INADDR_ANY)
1271	strcpy(line, "*");
1272	else if (cp) {
1273	strlcpy(line, cp, sizeof(line));
1274	} else {
1275	inp->s_addr = ntohl(inp->s_addr);
1276	#define C(x) ((u_int)((x) & 0xff))
1277	sprintf(line, "%u.%u.%u.%u", C(inp->s_addr >> 24),
1278	C(inp->s_addr >> 16), C(inp->s_addr >> 8), C(inp->s_addr));
1279	}
1280	return (line);
1281	}

Note: See TracBrowser for help on using the repository browser.

Context Navigation

source: rtems-libbsd/freebsd/usr.bin/netstat/inet.c @ 6da9b23

Download in other formats: