xref: /freebsd/usr.bin/netstat/if.c (revision 9eddb899d909fd8e9392e9de6b152b0999f57153)
165475bc8SDavid E. O'Brien /*-
2526b18aaSGleb Smirnoff  * Copyright (c) 2013 Gleb Smirnoff <glebius@FreeBSD.org>
39b50d902SRodney W. Grimes  * Copyright (c) 1983, 1988, 1993
49b50d902SRodney W. Grimes  *	The Regents of the University of California.  All rights reserved.
59b50d902SRodney W. Grimes  *
69b50d902SRodney W. Grimes  * Redistribution and use in source and binary forms, with or without
79b50d902SRodney W. Grimes  * modification, are permitted provided that the following conditions
89b50d902SRodney W. Grimes  * are met:
99b50d902SRodney W. Grimes  * 1. Redistributions of source code must retain the above copyright
109b50d902SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer.
119b50d902SRodney W. Grimes  * 2. Redistributions in binary form must reproduce the above copyright
129b50d902SRodney W. Grimes  *    notice, this list of conditions and the following disclaimer in the
139b50d902SRodney W. Grimes  *    documentation and/or other materials provided with the distribution.
149b50d902SRodney W. Grimes  * 4. Neither the name of the University nor the names of its contributors
159b50d902SRodney W. Grimes  *    may be used to endorse or promote products derived from this software
169b50d902SRodney W. Grimes  *    without specific prior written permission.
179b50d902SRodney W. Grimes  *
189b50d902SRodney W. Grimes  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
199b50d902SRodney W. Grimes  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
209b50d902SRodney W. Grimes  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
219b50d902SRodney W. Grimes  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
229b50d902SRodney W. Grimes  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
239b50d902SRodney W. Grimes  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
249b50d902SRodney W. Grimes  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
259b50d902SRodney W. Grimes  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
269b50d902SRodney W. Grimes  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
279b50d902SRodney W. Grimes  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
289b50d902SRodney W. Grimes  * SUCH DAMAGE.
299b50d902SRodney W. Grimes  */
309b50d902SRodney W. Grimes 
316cc6f122SPhilippe Charnier #if 0
329b50d902SRodney W. Grimes #ifndef lint
3305ddff6eSPeter Wemm static char sccsid[] = "@(#)if.c	8.3 (Berkeley) 4/28/95";
349b50d902SRodney W. Grimes #endif /* not lint */
356cc6f122SPhilippe Charnier #endif
366cc6f122SPhilippe Charnier 
376cc6f122SPhilippe Charnier #include <sys/cdefs.h>
386cc6f122SPhilippe Charnier __FBSDID("$FreeBSD$");
399b50d902SRodney W. Grimes 
409b50d902SRodney W. Grimes #include <sys/types.h>
419b50d902SRodney W. Grimes #include <sys/protosw.h>
429b50d902SRodney W. Grimes #include <sys/socket.h>
43feda1a43SJohn Baldwin #include <sys/socketvar.h>
44628d2ac1SGarrett Wollman #include <sys/time.h>
459b50d902SRodney W. Grimes 
469b50d902SRodney W. Grimes #include <net/if.h>
479b50d902SRodney W. Grimes #include <net/if_dl.h>
48f6719675SBill Fenner #include <net/if_types.h>
4975fb8770SGarrett Wollman #include <net/ethernet.h>
509b50d902SRodney W. Grimes #include <netinet/in.h>
519b50d902SRodney W. Grimes #include <netinet/in_var.h>
529b50d902SRodney W. Grimes #include <arpa/inet.h>
533e4d5cd3SGleb Smirnoff #ifdef PF
543e4d5cd3SGleb Smirnoff #include <net/pfvar.h>
553e4d5cd3SGleb Smirnoff #include <net/if_pfsync.h>
563e4d5cd3SGleb Smirnoff #endif
579b50d902SRodney W. Grimes 
582e37c5a3SMax Laier #include <err.h>
592e37c5a3SMax Laier #include <errno.h>
6084c1edcbSGleb Smirnoff #include <ifaddrs.h>
61c2dfd19fSGleb Smirnoff #include <libutil.h>
62cd05232aSHajimu UMEMOTO #ifdef INET6
63cd05232aSHajimu UMEMOTO #include <netdb.h>
64cd05232aSHajimu UMEMOTO #endif
659b50d902SRodney W. Grimes #include <signal.h>
6684c1edcbSGleb Smirnoff #include <stdbool.h>
677b95a1ebSYaroslav Tykhiy #include <stdint.h>
689b50d902SRodney W. Grimes #include <stdio.h>
69591c194aSGuido van Rooij #include <stdlib.h>
709b50d902SRodney W. Grimes #include <string.h>
7184c1edcbSGleb Smirnoff #include <sysexits.h>
72821df508SXin LI #include <unistd.h>
73ade9ccfeSMarcel Moolenaar #include <libxo/xo.h>
749b50d902SRodney W. Grimes 
759b50d902SRodney W. Grimes #include "netstat.h"
769b50d902SRodney W. Grimes 
7710d5269fSHiroki Sato static void sidewaysintpr(void);
78cfa1ca9dSYoshinobu Inoue 
793e4d5cd3SGleb Smirnoff #ifdef PF
80d6d3f01eSGleb Smirnoff static const char* pfsyncacts[] = {
81d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_CLR */		"clear all request",
82d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_INS */		"state insert",
83d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_INS_ACK */	"state inserted ack",
84d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_UPD */		"state update",
85d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_UPD_C */		"compressed state update",
86d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_UPD_REQ */	"uncompressed state request",
87d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_DEL */		"state delete",
88d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_DEL_C */		"compressed state delete",
89d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_INS_F */		"fragment insert",
90d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_DEL_F */		"fragment delete",
91d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_BUS */		"bulk update mark",
92d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_TDB */		"TDB replay counter update",
93d6d3f01eSGleb Smirnoff 	/* PFSYNC_ACT_EOF */		"end of frame mark",
94d6d3f01eSGleb Smirnoff };
95d6d3f01eSGleb Smirnoff 
96ade9ccfeSMarcel Moolenaar static const char* pfsyncacts_name[] = {
97ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_CLR */		"clear-all-request",
98ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_INS */		"state-insert",
99ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_INS_ACK */	"state-inserted-ack",
100ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_UPD */		"state-update",
101ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_UPD_C */		"compressed-state-update",
102ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_UPD_REQ */	"uncompressed-state-request",
103ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_DEL */		"state-delete",
104ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_DEL_C */		"compressed-state-delete",
105ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_INS_F */		"fragment-insert",
106ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_DEL_F */		"fragment-delete",
107ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_BUS */		"bulk-update-mark",
108ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_TDB */		"TDB-replay-counter-update",
109ade9ccfeSMarcel Moolenaar 	/* PFSYNC_ACT_EOF */		"end-of-frame-mark",
110ade9ccfeSMarcel Moolenaar };
111ade9ccfeSMarcel Moolenaar 
112d6d3f01eSGleb Smirnoff static void
113ade9ccfeSMarcel Moolenaar pfsync_acts_stats(const char *list, const char *desc, uint64_t *a)
114d6d3f01eSGleb Smirnoff {
115d6d3f01eSGleb Smirnoff 	int i;
116d6d3f01eSGleb Smirnoff 
117ade9ccfeSMarcel Moolenaar 	xo_open_list(list);
118ade9ccfeSMarcel Moolenaar 	for (i = 0; i < PFSYNC_ACT_MAX; i++, a++) {
119ade9ccfeSMarcel Moolenaar 		if (*a || sflag <= 1) {
120ade9ccfeSMarcel Moolenaar 			xo_open_instance(list);
121ade9ccfeSMarcel Moolenaar 			xo_emit("\t\t{e:name}{:count/%ju} {N:/%s%s %s}\n",
122ade9ccfeSMarcel Moolenaar 			    pfsyncacts_name[i], (uintmax_t)(*a),
123ade9ccfeSMarcel Moolenaar 			    pfsyncacts[i], plural(*a), desc);
124ade9ccfeSMarcel Moolenaar 			xo_close_instance(list);
125ade9ccfeSMarcel Moolenaar 		}
126ade9ccfeSMarcel Moolenaar 	}
127ade9ccfeSMarcel Moolenaar 	xo_close_list(list);
128d6d3f01eSGleb Smirnoff }
129d6d3f01eSGleb Smirnoff 
1302e37c5a3SMax Laier /*
1312e37c5a3SMax Laier  * Dump pfsync statistics structure.
1322e37c5a3SMax Laier  */
1332e37c5a3SMax Laier void
134feda1a43SJohn Baldwin pfsync_stats(u_long off, const char *name, int af1 __unused, int proto __unused)
1352e37c5a3SMax Laier {
136*9eddb899SMark Johnston 	struct pfsyncstats pfsyncstat;
137445f17bbSJosef Karthauser 
138*9eddb899SMark Johnston 	if (fetch_stats("net.pfsync.stats", off, &pfsyncstat,
139*9eddb899SMark Johnston 	    sizeof(pfsyncstat), kread) != 0)
1402e37c5a3SMax Laier 		return;
141445f17bbSJosef Karthauser 
142ade9ccfeSMarcel Moolenaar 	xo_emit("{T:/%s}:\n", name);
143ade9ccfeSMarcel Moolenaar 	xo_open_container(name);
1442e37c5a3SMax Laier 
1452e37c5a3SMax Laier #define	p(f, m) if (pfsyncstat.f || sflag <= 1) \
146ade9ccfeSMarcel Moolenaar 	xo_emit(m, (uintmax_t)pfsyncstat.f, plural(pfsyncstat.f))
1472e37c5a3SMax Laier 
148ade9ccfeSMarcel Moolenaar 	p(pfsyncs_ipackets, "\t{:received-inet-packets/%ju} "
149ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s received (IPv4)}\n");
150ade9ccfeSMarcel Moolenaar 	p(pfsyncs_ipackets6, "\t{:received-inet6-packets/%ju} "
151ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s received (IPv6)}\n");
152ade9ccfeSMarcel Moolenaar 	pfsync_acts_stats("input-histogram", "received",
153d6d3f01eSGleb Smirnoff 	    &pfsyncstat.pfsyncs_iacts[0]);
154ade9ccfeSMarcel Moolenaar 	p(pfsyncs_badif, "\t\t/{:dropped-bad-interface/%ju} "
155ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s discarded for bad interface}\n");
156ade9ccfeSMarcel Moolenaar 	p(pfsyncs_badttl, "\t\t{:dropped-bad-ttl/%ju} "
157ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s discarded for bad ttl}\n");
158ade9ccfeSMarcel Moolenaar 	p(pfsyncs_hdrops, "\t\t{:dropped-short-header/%ju} "
159ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s shorter than header}\n");
160ade9ccfeSMarcel Moolenaar 	p(pfsyncs_badver, "\t\t{:dropped-bad-version/%ju} "
161ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s discarded for bad version}\n");
162ade9ccfeSMarcel Moolenaar 	p(pfsyncs_badauth, "\t\t{:dropped-bad-auth/%ju} "
163ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s discarded for bad HMAC}\n");
164ade9ccfeSMarcel Moolenaar 	p(pfsyncs_badact,"\t\t{:dropped-bad-action/%ju} "
165ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s discarded for bad action}\n");
166ade9ccfeSMarcel Moolenaar 	p(pfsyncs_badlen, "\t\t{:dropped-short/%ju} "
167ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s discarded for short packet}\n");
168ade9ccfeSMarcel Moolenaar 	p(pfsyncs_badval, "\t\t{:dropped-bad-values/%ju} "
169ade9ccfeSMarcel Moolenaar 	    "{N:/state%s discarded for bad values}\n");
170ade9ccfeSMarcel Moolenaar 	p(pfsyncs_stale, "\t\t{:dropped-stale-state/%ju} "
171ade9ccfeSMarcel Moolenaar 	    "{N:/stale state%s}\n");
172ade9ccfeSMarcel Moolenaar 	p(pfsyncs_badstate, "\t\t{:dropped-failed-lookup/%ju} "
173ade9ccfeSMarcel Moolenaar 	    "{N:/failed state lookup\\/insert%s}\n");
174ade9ccfeSMarcel Moolenaar 	p(pfsyncs_opackets, "\t{:sent-inet-packets/%ju} "
175ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s sent (IPv4})\n");
176ade9ccfeSMarcel Moolenaar 	p(pfsyncs_opackets6, "\t{:send-inet6-packets/%ju} "
177ade9ccfeSMarcel Moolenaar 	    "{N:/packet%s sent (IPv6})\n");
178ade9ccfeSMarcel Moolenaar 	pfsync_acts_stats("output-histogram", "sent",
179d6d3f01eSGleb Smirnoff 	    &pfsyncstat.pfsyncs_oacts[0]);
180ade9ccfeSMarcel Moolenaar 	p(pfsyncs_onomem, "\t\t{:discarded-no-memory/%ju} "
181ade9ccfeSMarcel Moolenaar 	    "{N:/failure%s due to mbuf memory error}\n");
182ade9ccfeSMarcel Moolenaar 	p(pfsyncs_oerrors, "\t\t{:send-errors/%ju} "
183ade9ccfeSMarcel Moolenaar 	    "{N:/send error%s}\n");
1842e37c5a3SMax Laier #undef p
185ade9ccfeSMarcel Moolenaar 	xo_close_container(name);
1862e37c5a3SMax Laier }
1873e4d5cd3SGleb Smirnoff #endif /* PF */
188445f17bbSJosef Karthauser 
189445f17bbSJosef Karthauser /*
190445f17bbSJosef Karthauser  * Display a formatted value, or a '-' in the same space.
191445f17bbSJosef Karthauser  */
1925e051718SAssar Westerlund static void
193ade9ccfeSMarcel Moolenaar show_stat(const char *fmt, int width, const char *name,
194a261e361SHiroki Sato     u_long value, short showvalue, int div1000)
195445f17bbSJosef Karthauser {
1961f575ce8SBruce Evans 	const char *lsep, *rsep;
197ade9ccfeSMarcel Moolenaar 	char newfmt[64];
198445f17bbSJosef Karthauser 
1991f575ce8SBruce Evans 	lsep = "";
2001f575ce8SBruce Evans 	if (strncmp(fmt, "LS", 2) == 0) {
2011f575ce8SBruce Evans 		lsep = " ";
2021f575ce8SBruce Evans 		fmt += 2;
2031f575ce8SBruce Evans 	}
2041f575ce8SBruce Evans 	rsep = " ";
2051f575ce8SBruce Evans 	if (strncmp(fmt, "NRS", 3) == 0) {
2061f575ce8SBruce Evans 		rsep = "";
2071f575ce8SBruce Evans 		fmt += 3;
2081f575ce8SBruce Evans 	}
209c2dfd19fSGleb Smirnoff 	if (showvalue == 0) {
210c2dfd19fSGleb Smirnoff 		/* Print just dash. */
211ade9ccfeSMarcel Moolenaar 		xo_emit("{P:/%s}{D:/%*s}{P:/%s}", lsep, width, "-", rsep);
212c2dfd19fSGleb Smirnoff 		return;
213445f17bbSJosef Karthauser 	}
214445f17bbSJosef Karthauser 
215ade9ccfeSMarcel Moolenaar 	/*
216ade9ccfeSMarcel Moolenaar 	 * XXX: workaround {P:} modifier can't be empty and doesn't seem to
217ade9ccfeSMarcel Moolenaar 	 * take args... so we need to conditionally include it in the format.
218ade9ccfeSMarcel Moolenaar 	 */
219ade9ccfeSMarcel Moolenaar #define maybe_pad(pad)	do {						    \
220ade9ccfeSMarcel Moolenaar 	if (strlen(pad)) {						    \
221ade9ccfeSMarcel Moolenaar 		snprintf(newfmt, sizeof(newfmt), "{P:%s}", pad);	    \
222ade9ccfeSMarcel Moolenaar 		xo_emit(newfmt);					    \
223ade9ccfeSMarcel Moolenaar 	}								    \
224ade9ccfeSMarcel Moolenaar } while (0)
225ade9ccfeSMarcel Moolenaar 
226c2dfd19fSGleb Smirnoff 	if (hflag) {
227c2dfd19fSGleb Smirnoff 		char buf[5];
228445f17bbSJosef Karthauser 
229c2dfd19fSGleb Smirnoff 		/* Format in human readable form. */
230c2dfd19fSGleb Smirnoff 		humanize_number(buf, sizeof(buf), (int64_t)value, "",
231a261e361SHiroki Sato 		    HN_AUTOSCALE, HN_NOSPACE | HN_DECIMAL | \
232a261e361SHiroki Sato 		    ((div1000) ? HN_DIVISOR_1000 : 0));
233ade9ccfeSMarcel Moolenaar 		maybe_pad(lsep);
234ade9ccfeSMarcel Moolenaar 		snprintf(newfmt, sizeof(newfmt), "{:%s/%%%ds}", name, width);
235ade9ccfeSMarcel Moolenaar 		xo_emit(newfmt, buf);
236ade9ccfeSMarcel Moolenaar 		maybe_pad(rsep);
237c2dfd19fSGleb Smirnoff 	} else {
238c2dfd19fSGleb Smirnoff 		/* Construct the format string. */
239ade9ccfeSMarcel Moolenaar 		maybe_pad(lsep);
240ade9ccfeSMarcel Moolenaar 		snprintf(newfmt, sizeof(newfmt), "{:%s/%%%d%s}",
241ade9ccfeSMarcel Moolenaar 		    name, width, fmt);
242ade9ccfeSMarcel Moolenaar 		xo_emit(newfmt, value);
243ade9ccfeSMarcel Moolenaar 		maybe_pad(rsep);
244c2dfd19fSGleb Smirnoff 	}
245c2dfd19fSGleb Smirnoff }
246445f17bbSJosef Karthauser 
2479b50d902SRodney W. Grimes /*
24884c1edcbSGleb Smirnoff  * Find next multiaddr for a given interface name.
24984c1edcbSGleb Smirnoff  */
25084c1edcbSGleb Smirnoff static struct ifmaddrs *
25184c1edcbSGleb Smirnoff next_ifma(struct ifmaddrs *ifma, const char *name, const sa_family_t family)
25284c1edcbSGleb Smirnoff {
25384c1edcbSGleb Smirnoff 
25484c1edcbSGleb Smirnoff 	for(; ifma != NULL; ifma = ifma->ifma_next) {
25584c1edcbSGleb Smirnoff 		struct sockaddr_dl *sdl;
25684c1edcbSGleb Smirnoff 
25784c1edcbSGleb Smirnoff 		sdl = (struct sockaddr_dl *)ifma->ifma_name;
25884c1edcbSGleb Smirnoff 		if (ifma->ifma_addr->sa_family == family &&
25984c1edcbSGleb Smirnoff 		    strcmp(sdl->sdl_data, name) == 0)
26084c1edcbSGleb Smirnoff 			break;
26184c1edcbSGleb Smirnoff 	}
26284c1edcbSGleb Smirnoff 
26384c1edcbSGleb Smirnoff 	return (ifma);
26484c1edcbSGleb Smirnoff }
26584c1edcbSGleb Smirnoff 
26684c1edcbSGleb Smirnoff /*
2679b50d902SRodney W. Grimes  * Print a description of the network interfaces.
2689b50d902SRodney W. Grimes  */
2699b50d902SRodney W. Grimes void
27010d5269fSHiroki Sato intpr(void (*pfunc)(char *), int af)
2719b50d902SRodney W. Grimes {
27284c1edcbSGleb Smirnoff 	struct ifaddrs *ifap, *ifa;
27384c1edcbSGleb Smirnoff 	struct ifmaddrs *ifmap, *ifma;
2749b50d902SRodney W. Grimes 
27584c1edcbSGleb Smirnoff 	if (interval)
27610d5269fSHiroki Sato 		return sidewaysintpr();
27784c1edcbSGleb Smirnoff 
27884c1edcbSGleb Smirnoff 	if (getifaddrs(&ifap) != 0)
27984c1edcbSGleb Smirnoff 		err(EX_OSERR, "getifaddrs");
28084c1edcbSGleb Smirnoff 	if (aflag && getifmaddrs(&ifmap) != 0)
28184c1edcbSGleb Smirnoff 		err(EX_OSERR, "getifmaddrs");
2820e27dc05SGarrett Wollman 
283ade9ccfeSMarcel Moolenaar 	xo_open_list("interface");
284cf5e44f8SRuslan Ermilov 	if (!pfunc) {
28525d295e1SBruce M Simpson 		if (Wflag)
286ade9ccfeSMarcel Moolenaar 			xo_emit("{T:/%-7.7s}", "Name");
28725d295e1SBruce M Simpson 		else
288ade9ccfeSMarcel Moolenaar 			xo_emit("{T:/%-5.5s}", "Name");
289ade9ccfeSMarcel Moolenaar 		xo_emit(" {T:/%5.5s} {T:/%-13.13s} {T:/%-17.17s} {T:/%8.8s} "
290ade9ccfeSMarcel Moolenaar 		    "{T:/%5.5s} {T:/%5.5s}",
291d72dc9a7SAttilio Rao 		    "Mtu", "Network", "Address", "Ipkts", "Ierrs", "Idrop");
292e1e293a5SDavid Greenman 		if (bflag)
293ade9ccfeSMarcel Moolenaar 			xo_emit(" {T:/%10.10s}","Ibytes");
294ade9ccfeSMarcel Moolenaar 		xo_emit(" {T:/%8.8s} {T:/%5.5s}", "Opkts", "Oerrs");
295e1e293a5SDavid Greenman 		if (bflag)
296ade9ccfeSMarcel Moolenaar 			xo_emit(" {T:/%10.10s}","Obytes");
297ade9ccfeSMarcel Moolenaar 		xo_emit(" {T:/%5s}", "Coll");
2989b50d902SRodney W. Grimes 		if (dflag)
299ade9ccfeSMarcel Moolenaar 			xo_emit(" {T:/%s}", "Drop");
300ade9ccfeSMarcel Moolenaar 		xo_emit("\n");
301cfa1ca9dSYoshinobu Inoue 	}
3029b50d902SRodney W. Grimes 
30384c1edcbSGleb Smirnoff 	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
30484c1edcbSGleb Smirnoff 		bool network = false, link = false;
305e42e1fccSGleb Smirnoff 		char *name, *xname, buf[IFNAMSIZ+1];
306445f17bbSJosef Karthauser 
30784c1edcbSGleb Smirnoff 		if (interface != NULL && strcmp(ifa->ifa_name, interface) != 0)
3089b50d902SRodney W. Grimes 			continue;
309cfa1ca9dSYoshinobu Inoue 
31084c1edcbSGleb Smirnoff 		name = ifa->ifa_name;
311ade9ccfeSMarcel Moolenaar 
312ade9ccfeSMarcel Moolenaar 		if (pfunc) {
313ade9ccfeSMarcel Moolenaar 
31484c1edcbSGleb Smirnoff 			(*pfunc)(name);
3155da9f8faSJosef Karthauser 
3165da9f8faSJosef Karthauser 			/*
31784c1edcbSGleb Smirnoff 			 * Skip all ifaddrs belonging to same interface.
3185da9f8faSJosef Karthauser 			 */
31984c1edcbSGleb Smirnoff 			while(ifa->ifa_next != NULL &&
32084c1edcbSGleb Smirnoff 			    (strcmp(ifa->ifa_next->ifa_name, name) == 0)) {
32184c1edcbSGleb Smirnoff 				ifa = ifa->ifa_next;
32284c1edcbSGleb Smirnoff 			}
32384c1edcbSGleb Smirnoff 			continue;
32484c1edcbSGleb Smirnoff 		}
3255da9f8faSJosef Karthauser 
32684c1edcbSGleb Smirnoff 		if (af != AF_UNSPEC && ifa->ifa_addr->sa_family != af)
3279b50d902SRodney W. Grimes 			continue;
32884c1edcbSGleb Smirnoff 
329ade9ccfeSMarcel Moolenaar 		xo_open_instance("interface");
330ade9ccfeSMarcel Moolenaar 
331e42e1fccSGleb Smirnoff 		if ((ifa->ifa_flags & IFF_UP) == 0) {
332e42e1fccSGleb Smirnoff 			xname = stpcpy(buf, name);
333e42e1fccSGleb Smirnoff 			*xname++ = '*';
334e42e1fccSGleb Smirnoff 			*xname = '\0';
335e42e1fccSGleb Smirnoff 			xname = buf;
336e42e1fccSGleb Smirnoff 		} else
337e42e1fccSGleb Smirnoff 			xname = name;
338e42e1fccSGleb Smirnoff 
33925d295e1SBruce M Simpson 		if (Wflag)
340e42e1fccSGleb Smirnoff 			xo_emit("{etk:name/%s}{e:flags/0x%x}{d:/%7.7s}",
341e42e1fccSGleb Smirnoff 			    name, ifa->ifa_flags, xname);
34225d295e1SBruce M Simpson 		else
343e42e1fccSGleb Smirnoff 			xo_emit("{etk:name/%s}{e:flags/0x%x}{d:/%5.5s}",
344e42e1fccSGleb Smirnoff 			    name, ifa->ifa_flags, xname);
34584c1edcbSGleb Smirnoff 
34684c1edcbSGleb Smirnoff #define IFA_MTU(ifa)	(((struct if_data *)(ifa)->ifa_data)->ifi_mtu)
347a261e361SHiroki Sato 		show_stat("lu", 6, "mtu", IFA_MTU(ifa), IFA_MTU(ifa), 0);
34884c1edcbSGleb Smirnoff #undef IFA_MTU
34984c1edcbSGleb Smirnoff 
35084c1edcbSGleb Smirnoff 		switch (ifa->ifa_addr->sa_family) {
3519b50d902SRodney W. Grimes 		case AF_UNSPEC:
352ade9ccfeSMarcel Moolenaar 			xo_emit("{:network/%-13.13s} ", "none");
353ade9ccfeSMarcel Moolenaar 			xo_emit("{:address/%-15.15s} ", "none");
3549b50d902SRodney W. Grimes 			break;
3559b50d902SRodney W. Grimes 		case AF_INET:
35610d5269fSHiroki Sato 			if (Wflag) {
35710d5269fSHiroki Sato 				xo_emit("{t:network/%-13s} ",
35810d5269fSHiroki Sato 				    netname(ifa->ifa_addr, ifa->ifa_netmask));
35910d5269fSHiroki Sato 				xo_emit("{t:address/%-17s} ",
36010d5269fSHiroki Sato 				    routename(ifa->ifa_addr, numeric_addr));
36110d5269fSHiroki Sato 			} else {
362ade9ccfeSMarcel Moolenaar 				xo_emit("{t:network/%-13.13s} ",
36310d5269fSHiroki Sato 				    netname(ifa->ifa_addr, ifa->ifa_netmask));
364ade9ccfeSMarcel Moolenaar 				xo_emit("{t:address/%-17.17s} ",
36510d5269fSHiroki Sato 				    routename(ifa->ifa_addr, numeric_addr));
36610d5269fSHiroki Sato 			}
36784c1edcbSGleb Smirnoff 
36884c1edcbSGleb Smirnoff 			network = true;
3699b50d902SRodney W. Grimes 			break;
370cfa1ca9dSYoshinobu Inoue #ifdef INET6
371cfa1ca9dSYoshinobu Inoue 		case AF_INET6:
37210d5269fSHiroki Sato 			if (Wflag) {
37310d5269fSHiroki Sato 				xo_emit("{t:network/%-13s} ",
37410d5269fSHiroki Sato 				    netname(ifa->ifa_addr, ifa->ifa_netmask));
37510d5269fSHiroki Sato 				xo_emit("{t:address/%-17s} ",
37610d5269fSHiroki Sato 				    routename(ifa->ifa_addr, numeric_addr));
37710d5269fSHiroki Sato 			} else {
378ade9ccfeSMarcel Moolenaar 				xo_emit("{t:network/%-13.13s} ",
37910d5269fSHiroki Sato 				    netname(ifa->ifa_addr, ifa->ifa_netmask));
38010d5269fSHiroki Sato 				xo_emit("{t:address/%-17.17s} ",
38110d5269fSHiroki Sato 				    routename(ifa->ifa_addr, numeric_addr));
38284c1edcbSGleb Smirnoff 			}
38310d5269fSHiroki Sato 
38410d5269fSHiroki Sato 			network = true;
38510d5269fSHiroki Sato 			break;
386cfa1ca9dSYoshinobu Inoue #endif /* INET6 */
3879b50d902SRodney W. Grimes 		case AF_LINK:
3889b50d902SRodney W. Grimes 		    {
38984c1edcbSGleb Smirnoff 			struct sockaddr_dl *sdl;
39010d5269fSHiroki Sato 			char linknum[10];
39184c1edcbSGleb Smirnoff 
39284c1edcbSGleb Smirnoff 			sdl = (struct sockaddr_dl *)ifa->ifa_addr;
393cfa1ca9dSYoshinobu Inoue 			sprintf(linknum, "<Link#%d>", sdl->sdl_index);
394ade9ccfeSMarcel Moolenaar 			xo_emit("{t:network/%-13.13s} ", linknum);
39510d5269fSHiroki Sato 			if (sdl->sdl_nlen == 0 &&
39610d5269fSHiroki Sato 			    sdl->sdl_alen == 0 &&
39710d5269fSHiroki Sato 			    sdl->sdl_slen == 0)
398ade9ccfeSMarcel Moolenaar 				xo_emit("{P:                  }");
39910d5269fSHiroki Sato 			else
40010d5269fSHiroki Sato 				xo_emit("{:address/%*s}",
40110d5269fSHiroki Sato 				    32 - 3 * sdl->sdl_alen,
40210d5269fSHiroki Sato 				    routename(ifa->ifa_addr, 1));
40310d5269fSHiroki Sato 			link = true;
4049b50d902SRodney W. Grimes 			break;
4059b50d902SRodney W. Grimes 		    }
4065da9f8faSJosef Karthauser 		}
4075da9f8faSJosef Karthauser 
40884c1edcbSGleb Smirnoff #define	IFA_STAT(s)	(((struct if_data *)ifa->ifa_data)->ifi_ ## s)
409ade9ccfeSMarcel Moolenaar 		show_stat("lu", 8, "received-packets", IFA_STAT(ipackets),
410a261e361SHiroki Sato 		    link|network, 1);
411a261e361SHiroki Sato 		show_stat("lu", 5, "received-errors", IFA_STAT(ierrors),
412a261e361SHiroki Sato 		    link, 1);
413a261e361SHiroki Sato 		show_stat("lu", 5, "dropped-packets", IFA_STAT(iqdrops),
414a261e361SHiroki Sato 		    link, 1);
4157c23a867SGleb Smirnoff 		if (bflag)
416ade9ccfeSMarcel Moolenaar 			show_stat("lu", 10, "received-bytes", IFA_STAT(ibytes),
417a261e361SHiroki Sato 			    link|network, 0);
418ade9ccfeSMarcel Moolenaar 		show_stat("lu", 8, "sent-packets", IFA_STAT(opackets),
419a261e361SHiroki Sato 		    link|network, 1);
420a261e361SHiroki Sato 		show_stat("lu", 5, "send-errors", IFA_STAT(oerrors), link, 1);
4217c23a867SGleb Smirnoff 		if (bflag)
422ade9ccfeSMarcel Moolenaar 			show_stat("lu", 10, "sent-bytes", IFA_STAT(obytes),
423a261e361SHiroki Sato 			    link|network, 0);
424a261e361SHiroki Sato 		show_stat("NRSlu", 5, "collisions", IFA_STAT(collisions),
425a261e361SHiroki Sato 		    link, 1);
42655fb7d68SGleb Smirnoff 		if (dflag)
427ade9ccfeSMarcel Moolenaar 			show_stat("LSlu", 5, "dropped-packets",
428a261e361SHiroki Sato 			    IFA_STAT(oqdrops), link, 1);
429ade9ccfeSMarcel Moolenaar 		xo_emit("\n");
4301f575ce8SBruce Evans 
431ade9ccfeSMarcel Moolenaar 		if (!aflag) {
432ade9ccfeSMarcel Moolenaar 			xo_close_instance("interface");
43375fb8770SGarrett Wollman 			continue;
434ade9ccfeSMarcel Moolenaar 		}
43575fb8770SGarrett Wollman 
43684c1edcbSGleb Smirnoff 		/*
43784c1edcbSGleb Smirnoff 		 * Print family's multicast addresses.
43884c1edcbSGleb Smirnoff 		 */
439ade9ccfeSMarcel Moolenaar 		xo_open_list("multicast-address");
44084c1edcbSGleb Smirnoff 		for (ifma = next_ifma(ifmap, ifa->ifa_name,
44184c1edcbSGleb Smirnoff 		    ifa->ifa_addr->sa_family);
44284c1edcbSGleb Smirnoff 		    ifma != NULL;
44384c1edcbSGleb Smirnoff 		    ifma = next_ifma(ifma, ifa->ifa_name,
44484c1edcbSGleb Smirnoff 		    ifa->ifa_addr->sa_family)) {
44584c1edcbSGleb Smirnoff 			const char *fmt = NULL;
44684c1edcbSGleb Smirnoff 
447ade9ccfeSMarcel Moolenaar 			xo_open_instance("multicast-address");
44884c1edcbSGleb Smirnoff 			switch (ifma->ifma_addr->sa_family) {
449f6719675SBill Fenner 			case AF_LINK:
45084c1edcbSGleb Smirnoff 			    {
45184c1edcbSGleb Smirnoff 				struct sockaddr_dl *sdl;
45284c1edcbSGleb Smirnoff 
45384c1edcbSGleb Smirnoff 				sdl = (struct sockaddr_dl *)ifma->ifma_addr;
45410d5269fSHiroki Sato 				if (sdl->sdl_type != IFT_ETHER &&
45510d5269fSHiroki Sato 				    sdl->sdl_type != IFT_FDDI)
45675fb8770SGarrett Wollman 					break;
457f6719675SBill Fenner 			    }
45810d5269fSHiroki Sato 				/* FALLTHROUGH */
45910d5269fSHiroki Sato 			case AF_INET:
46010d5269fSHiroki Sato #ifdef INET6
46110d5269fSHiroki Sato 			case AF_INET6:
46210d5269fSHiroki Sato #endif /* INET6 */
46310d5269fSHiroki Sato 				fmt = routename(ifma->ifma_addr, numeric_addr);
464f6719675SBill Fenner 				break;
465f6719675SBill Fenner 			}
46684c1edcbSGleb Smirnoff 			if (fmt) {
46710d5269fSHiroki Sato 				if (Wflag)
46810d5269fSHiroki Sato 					xo_emit("{P:/%27s }"
46910d5269fSHiroki Sato 					    "{t:address/%-17s/}", "", fmt);
47010d5269fSHiroki Sato 				else
47110d5269fSHiroki Sato 					xo_emit("{P:/%25s }"
47210d5269fSHiroki Sato 					    "{t:address/%-17.17s/}", "", fmt);
47384c1edcbSGleb Smirnoff 				if (ifma->ifma_addr->sa_family == AF_LINK) {
474ade9ccfeSMarcel Moolenaar 					xo_emit(" {:received-packets/%8lu}",
475ade9ccfeSMarcel Moolenaar 					    IFA_STAT(imcasts));
476ade9ccfeSMarcel Moolenaar 					xo_emit("{P:/%*s}", bflag? 17 : 6, "");
477ade9ccfeSMarcel Moolenaar 					xo_emit(" {:sent-packets/%8lu}",
478ade9ccfeSMarcel Moolenaar 					    IFA_STAT(omcasts));
47984c1edcbSGleb Smirnoff  				}
480ade9ccfeSMarcel Moolenaar 				xo_emit("\n");
48184c1edcbSGleb Smirnoff 			}
482ade9ccfeSMarcel Moolenaar 			xo_close_instance("multicast-address");
48384c1edcbSGleb Smirnoff 			ifma = ifma->ifma_next;
48484c1edcbSGleb Smirnoff 		}
485ade9ccfeSMarcel Moolenaar 		xo_close_list("multicast-address");
486ade9ccfeSMarcel Moolenaar 		xo_close_instance("interface");
48784c1edcbSGleb Smirnoff 	}
488ade9ccfeSMarcel Moolenaar 	xo_close_list("interface");
48984c1edcbSGleb Smirnoff 
49084c1edcbSGleb Smirnoff 	freeifaddrs(ifap);
49184c1edcbSGleb Smirnoff 	if (aflag)
49284c1edcbSGleb Smirnoff 		freeifmaddrs(ifmap);
49384c1edcbSGleb Smirnoff }
49484c1edcbSGleb Smirnoff 
4959b50d902SRodney W. Grimes struct iftot {
496890bc2a5SDoug Rabson 	u_long	ift_ip;			/* input packets */
497890bc2a5SDoug Rabson 	u_long	ift_ie;			/* input errors */
498d72dc9a7SAttilio Rao 	u_long	ift_id;			/* input drops */
499890bc2a5SDoug Rabson 	u_long	ift_op;			/* output packets */
500890bc2a5SDoug Rabson 	u_long	ift_oe;			/* output errors */
50155fb7d68SGleb Smirnoff 	u_long	ift_od;			/* output drops */
502890bc2a5SDoug Rabson 	u_long	ift_co;			/* collisions */
503890bc2a5SDoug Rabson 	u_long	ift_ib;			/* input bytes */
504890bc2a5SDoug Rabson 	u_long	ift_ob;			/* output bytes */
505591c194aSGuido van Rooij };
5069b50d902SRodney W. Grimes 
50784c1edcbSGleb Smirnoff /*
50884c1edcbSGleb Smirnoff  * Obtain stats for interface(s).
50984c1edcbSGleb Smirnoff  */
51084c1edcbSGleb Smirnoff static void
51184c1edcbSGleb Smirnoff fill_iftot(struct iftot *st)
51284c1edcbSGleb Smirnoff {
51384c1edcbSGleb Smirnoff 	struct ifaddrs *ifap, *ifa;
51484c1edcbSGleb Smirnoff 	bool found = false;
51584c1edcbSGleb Smirnoff 
51684c1edcbSGleb Smirnoff 	if (getifaddrs(&ifap) != 0)
517ade9ccfeSMarcel Moolenaar 		xo_err(EX_OSERR, "getifaddrs");
51884c1edcbSGleb Smirnoff 
51984c1edcbSGleb Smirnoff 	bzero(st, sizeof(*st));
52084c1edcbSGleb Smirnoff 
52184c1edcbSGleb Smirnoff 	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
52284c1edcbSGleb Smirnoff 		if (ifa->ifa_addr->sa_family != AF_LINK)
52384c1edcbSGleb Smirnoff 			continue;
52484c1edcbSGleb Smirnoff 		if (interface) {
52584c1edcbSGleb Smirnoff 			if (strcmp(ifa->ifa_name, interface) == 0)
52684c1edcbSGleb Smirnoff 				found = true;
52784c1edcbSGleb Smirnoff 			else
52884c1edcbSGleb Smirnoff 				continue;
52984c1edcbSGleb Smirnoff 		}
53084c1edcbSGleb Smirnoff 
53184c1edcbSGleb Smirnoff 		st->ift_ip += IFA_STAT(ipackets);
53284c1edcbSGleb Smirnoff 		st->ift_ie += IFA_STAT(ierrors);
53384c1edcbSGleb Smirnoff 		st->ift_id += IFA_STAT(iqdrops);
53484c1edcbSGleb Smirnoff 		st->ift_ib += IFA_STAT(ibytes);
53584c1edcbSGleb Smirnoff 		st->ift_op += IFA_STAT(opackets);
53684c1edcbSGleb Smirnoff 		st->ift_oe += IFA_STAT(oerrors);
53755fb7d68SGleb Smirnoff 		st->ift_od += IFA_STAT(oqdrops);
53884c1edcbSGleb Smirnoff 		st->ift_ob += IFA_STAT(obytes);
53984c1edcbSGleb Smirnoff  		st->ift_co += IFA_STAT(collisions);
54084c1edcbSGleb Smirnoff 	}
54184c1edcbSGleb Smirnoff 
54284c1edcbSGleb Smirnoff 	if (interface && found == false)
543ade9ccfeSMarcel Moolenaar 		xo_err(EX_DATAERR, "interface %s not found", interface);
54484c1edcbSGleb Smirnoff 
54584c1edcbSGleb Smirnoff 	freeifaddrs(ifap);
54684c1edcbSGleb Smirnoff }
54784c1edcbSGleb Smirnoff 
54884c1edcbSGleb Smirnoff /*
54984c1edcbSGleb Smirnoff  * Set a flag to indicate that a signal from the periodic itimer has been
55084c1edcbSGleb Smirnoff  * caught.
55184c1edcbSGleb Smirnoff  */
55284c1edcbSGleb Smirnoff static sig_atomic_t signalled;
55384c1edcbSGleb Smirnoff static void
55484c1edcbSGleb Smirnoff catchalarm(int signo __unused)
55584c1edcbSGleb Smirnoff {
55684c1edcbSGleb Smirnoff 	signalled = true;
55784c1edcbSGleb Smirnoff }
5589b50d902SRodney W. Grimes 
5599b50d902SRodney W. Grimes /*
5609b50d902SRodney W. Grimes  * Print a running summary of interface statistics.
56184c1edcbSGleb Smirnoff  * Repeat display every interval seconds, showing statistics
56284c1edcbSGleb Smirnoff  * collected over that interval.  Assumes that interval is non-zero.
5639b50d902SRodney W. Grimes  * First line printed at top of screen is always cumulative.
5649b50d902SRodney W. Grimes  */
5659b50d902SRodney W. Grimes static void
56610d5269fSHiroki Sato sidewaysintpr(void)
5679b50d902SRodney W. Grimes {
56884c1edcbSGleb Smirnoff 	struct iftot ift[2], *new, *old;
56993547b07SBruce Evans 	struct itimerval interval_it;
57084c1edcbSGleb Smirnoff 	int oldmask, line;
5719b50d902SRodney W. Grimes 
57284c1edcbSGleb Smirnoff 	new = &ift[0];
57384c1edcbSGleb Smirnoff 	old = &ift[1];
57484c1edcbSGleb Smirnoff 	fill_iftot(old);
575591c194aSGuido van Rooij 
5769b50d902SRodney W. Grimes 	(void)signal(SIGALRM, catchalarm);
57784c1edcbSGleb Smirnoff 	signalled = false;
57884c1edcbSGleb Smirnoff 	interval_it.it_interval.tv_sec = interval;
57993547b07SBruce Evans 	interval_it.it_interval.tv_usec = 0;
58093547b07SBruce Evans 	interval_it.it_value = interval_it.it_interval;
58193547b07SBruce Evans 	setitimer(ITIMER_REAL, &interval_it, NULL);
582ade9ccfeSMarcel Moolenaar 	xo_open_list("interface-statistics");
58384c1edcbSGleb Smirnoff 
5840b87c915SDavid Greenman banner:
585ade9ccfeSMarcel Moolenaar 	xo_emit("{T:/%17s} {T:/%14s} {T:/%16s}\n", "input",
58684c1edcbSGleb Smirnoff 	    interface != NULL ? interface : "(Total)", "output");
587ade9ccfeSMarcel Moolenaar 	xo_emit("{T:/%10s} {T:/%5s} {T:/%5s} {T:/%10s} {T:/%10s} {T:/%5s} "
588ade9ccfeSMarcel Moolenaar 	    "{T:/%10s} {T:/%5s}",
589d72dc9a7SAttilio Rao 	    "packets", "errs", "idrops", "bytes", "packets", "errs", "bytes",
590d72dc9a7SAttilio Rao 	    "colls");
5919b50d902SRodney W. Grimes 	if (dflag)
592ade9ccfeSMarcel Moolenaar 		xo_emit(" {T:/%5.5s}", "drops");
593ade9ccfeSMarcel Moolenaar 	xo_emit("\n");
594ade9ccfeSMarcel Moolenaar 	xo_flush();
5959b50d902SRodney W. Grimes 	line = 0;
59684c1edcbSGleb Smirnoff 
5979b50d902SRodney W. Grimes loop:
598ade9ccfeSMarcel Moolenaar 	if ((noutputs != 0) && (--noutputs == 0)) {
599ade9ccfeSMarcel Moolenaar 		xo_close_list("interface-statistics");
600ade9ccfeSMarcel Moolenaar 		return;
601ade9ccfeSMarcel Moolenaar 	}
6029b50d902SRodney W. Grimes 	oldmask = sigblock(sigmask(SIGALRM));
60393547b07SBruce Evans 	while (!signalled)
6049b50d902SRodney W. Grimes 		sigpause(0);
60584c1edcbSGleb Smirnoff 	signalled = false;
60693547b07SBruce Evans 	sigsetmask(oldmask);
6070b87c915SDavid Greenman 	line++;
60884c1edcbSGleb Smirnoff 
60984c1edcbSGleb Smirnoff 	fill_iftot(new);
61084c1edcbSGleb Smirnoff 
611ade9ccfeSMarcel Moolenaar 	xo_open_instance("stats");
612ade9ccfeSMarcel Moolenaar 	show_stat("lu", 10, "received-packets",
613a261e361SHiroki Sato 	    new->ift_ip - old->ift_ip, 1, 1);
614ade9ccfeSMarcel Moolenaar 	show_stat("lu", 5, "received-errors",
615a261e361SHiroki Sato 	    new->ift_ie - old->ift_ie, 1, 1);
616ade9ccfeSMarcel Moolenaar 	show_stat("lu", 5, "dropped-packets",
617a261e361SHiroki Sato 	    new->ift_id - old->ift_id, 1, 1);
618ade9ccfeSMarcel Moolenaar 	show_stat("lu", 10, "received-bytes",
619a261e361SHiroki Sato 	    new->ift_ib - old->ift_ib, 1, 0);
620ade9ccfeSMarcel Moolenaar 	show_stat("lu", 10, "sent-packets",
621a261e361SHiroki Sato 	    new->ift_op - old->ift_op, 1, 1);
622ade9ccfeSMarcel Moolenaar 	show_stat("lu", 5, "send-errors",
623a261e361SHiroki Sato 	    new->ift_oe - old->ift_oe, 1, 1);
624ade9ccfeSMarcel Moolenaar 	show_stat("lu", 10, "sent-bytes",
625a261e361SHiroki Sato 	    new->ift_ob - old->ift_ob, 1, 0);
626ade9ccfeSMarcel Moolenaar 	show_stat("NRSlu", 5, "collisions",
627a261e361SHiroki Sato 	    new->ift_co - old->ift_co, 1, 1);
62855fb7d68SGleb Smirnoff 	if (dflag)
629ade9ccfeSMarcel Moolenaar 		show_stat("LSlu", 5, "dropped-packets",
630a261e361SHiroki Sato 		    new->ift_od - old->ift_od, 1, 1);
631ade9ccfeSMarcel Moolenaar 	xo_close_instance("stats");
632ade9ccfeSMarcel Moolenaar 	xo_emit("\n");
633ade9ccfeSMarcel Moolenaar 	xo_flush();
63484c1edcbSGleb Smirnoff 
63584c1edcbSGleb Smirnoff 	if (new == &ift[0]) {
63684c1edcbSGleb Smirnoff 		new = &ift[1];
63784c1edcbSGleb Smirnoff 		old = &ift[0];
63884c1edcbSGleb Smirnoff 	} else {
63984c1edcbSGleb Smirnoff 		new = &ift[0];
64084c1edcbSGleb Smirnoff 		old = &ift[1];
64184c1edcbSGleb Smirnoff 	}
64284c1edcbSGleb Smirnoff 
6439b50d902SRodney W. Grimes 	if (line == 21)
6449b50d902SRodney W. Grimes 		goto banner;
6450b87c915SDavid Greenman 	else
6469b50d902SRodney W. Grimes 		goto loop;
6479b50d902SRodney W. Grimes 
64884c1edcbSGleb Smirnoff 	/* NOTREACHED */
6499b50d902SRodney W. Grimes }
650