2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 * @(#)if.c 8.3 (Berkeley) 4/28/95
34 * $FreeBSD: src/usr.bin/netstat/if.c,v 1.32.2.9 2001/09/17 14:35:46 ru Exp $
35 * $DragonFly: src/usr.bin/netstat/if.c,v 1.11 2006/08/03 16:40:48 swildner Exp $
38 #include <sys/param.h>
39 #include <sys/protosw.h>
40 #include <sys/socket.h>
41 #include <sys/sysctl.h>
45 #include <net/if_var.h>
46 #include <net/if_dl.h>
47 #include <net/if_types.h>
48 #include <net/ethernet.h>
49 #include <netinet/in.h>
50 #include <netinet/in_var.h>
51 #include <netproto/ipx/ipx.h>
52 #include <netproto/ipx/ipx_if.h>
54 #include <netproto/ns/ns.h>
55 #include <netproto/ns/ns_if.h>
58 #include <netiso/iso.h>
59 #include <netiso/iso_var.h>
61 #include <arpa/inet.h>
74 static void sidewaysintpr (u_int
, u_long
);
75 static void catchalarm (int);
78 char *netname6 (struct sockaddr_in6
*, struct in6_addr
*);
79 static char ntop_buf
[INET6_ADDRSTRLEN
]; /* for inet_ntop() */
84 * Display a formatted value, or a '-' in the same space.
87 show_stat(const char *fmt
, int width
, u_long value
, short showvalue
)
91 /* Construct the format string */
93 sprintf(newfmt
, "%%%d%s", width
, fmt
);
94 printf(newfmt
, value
);
96 sprintf(newfmt
, "%%%ds", width
);
104 * Print a description of the network interfaces.
107 intpr(int interval
, u_long ifnetaddr
, void (*pfunc
)(char *))
110 struct ifnethead ifnethead
;
115 struct in6_ifaddr in6
;
117 struct ipx_ifaddr ipx
;
122 struct iso_ifaddr iso
;
137 struct sockaddr
*sa
= NULL
;
142 if (ifnetaddr
== 0) {
143 printf("ifnet: symbol not defined\n");
147 sidewaysintpr((unsigned)interval
, ifnetaddr
);
150 if (kread(ifnetaddr
, (char *)&ifnethead
, sizeof ifnethead
))
152 ifnetaddr
= (u_long
)TAILQ_FIRST(&ifnethead
);
153 if (kread(ifnetaddr
, (char *)&ifnet
, sizeof ifnet
))
157 printf("%-7.7s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
158 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
160 printf(" %10.10s","Ibytes");
161 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
163 printf(" %10.10s","Obytes");
164 printf(" %5s", "Coll");
166 printf(" %s", "Time");
168 printf(" %s", "Drop");
172 while (ifnetaddr
|| ifaddraddr
) {
173 struct sockaddr_in
*sin
;
175 struct sockaddr_in6
*sin6
;
183 if (ifaddraddr
== 0) {
184 ifnetfound
= ifnetaddr
;
185 if (kread(ifnetaddr
, (char *)&ifnet
, sizeof ifnet
))
187 strlcpy(name
, ifnet
.if_xname
, sizeof(name
));
188 ifnetaddr
= (u_long
)TAILQ_NEXT(&ifnet
, if_link
);
189 if (interface
!= 0 && (strcmp(name
, interface
) != 0))
191 cp
= strchr(name
, '\0');
198 if ((ifnet
.if_flags
&IFF_UP
) == 0)
201 ifaddraddr
= (u_long
)TAILQ_FIRST(&ifnet
.if_addrhead
);
203 ifaddrfound
= ifaddraddr
;
206 * Get the interface stats. These may get
207 * overriden below on a per-interface basis.
209 opackets
= ifnet
.if_opackets
;
210 ipackets
= ifnet
.if_ipackets
;
211 obytes
= ifnet
.if_obytes
;
212 ibytes
= ifnet
.if_ibytes
;
213 oerrors
= ifnet
.if_oerrors
;
214 ierrors
= ifnet
.if_ierrors
;
215 collisions
= ifnet
.if_collisions
;
216 timer
= ifnet
.if_timer
;
217 drops
= ifnet
.if_snd
.ifq_drops
;
219 if (ifaddraddr
== 0) {
220 printf("%-7.7s %-5lu ", name
, ifnet
.if_mtu
);
221 printf("%-13.13s ", "none");
222 printf("%-15.15s ", "none");
224 if (kread(ifaddraddr
, (char *)&ifaddr
, sizeof ifaddr
)) {
228 #define CP(x) ((char *)(x))
229 cp
= (CP(ifaddr
.ifa
.ifa_addr
) - CP(ifaddraddr
)) +
231 sa
= (struct sockaddr
*)cp
;
232 if (af
!= AF_UNSPEC
&& sa
->sa_family
!= af
) {
234 (u_long
)TAILQ_NEXT(&ifaddr
.ifa
, ifa_link
);
237 printf("%-7.7s %-5lu ", name
, ifnet
.if_mtu
);
238 switch (sa
->sa_family
) {
240 printf("%-13.13s ", "none");
241 printf("%-15.15s ", "none");
244 sin
= (struct sockaddr_in
*)sa
;
246 /* can't use inet_makeaddr because kernel
247 * keeps nets unshifted.
249 in
= inet_makeaddr(ifaddr
.in
.ia_subnet
,
251 printf("%-13.13s ", netname(in
.s_addr
,
252 ifaddr
.in
.ia_subnetmask
));
255 netname(htonl(ifaddr
.in
.ia_subnet
),
256 ifaddr
.in
.ia_subnetmask
));
259 routename(sin
->sin_addr
.s_addr
));
265 sin6
= (struct sockaddr_in6
*)sa
;
267 netname6(&ifaddr
.in6
.ia_addr
,
268 &ifaddr
.in6
.ia_prefixmask
.sin6_addr
));
270 (char *)inet_ntop(AF_INET6
,
272 ntop_buf
, sizeof(ntop_buf
)));
279 struct sockaddr_ipx
*sipx
=
280 (struct sockaddr_ipx
*)sa
;
284 *(union ipx_net
*) &net
= sipx
->sipx_addr
.x_net
;
285 sprintf(netnum
, "%lx", (u_long
)ntohl(net
));
286 printf("ipx:%-8s ", netnum
);
287 /* printf("ipx:%-8s ", netname(net, 0L)); */
289 ipx_phost((struct sockaddr
*)sipx
));
294 printf("atalk:%-12.12s ",atalk_print(sa
,0x10) );
295 printf("%-9.9s ",atalk_print(sa
,0x0b) );
300 struct sockaddr_ns
*sns
=
301 (struct sockaddr_ns
*)sa
;
305 *(union ns_net
*) &net
= sns
->sns_addr
.x_net
;
306 sprintf(netnum
, "%lxH", ntohl(net
));
308 printf("ns:%-8s ", netnum
);
310 ns_phost((struct sockaddr
*)sns
));
316 struct sockaddr_dl
*sdl
=
317 (struct sockaddr_dl
*)sa
;
319 cp
= (char *)LLADDR(sdl
);
321 sprintf(linknum
, "<Link#%d>", sdl
->sdl_index
);
322 m
= printf("%-11.11s ", linknum
);
326 m
= printf("(%d)", sa
->sa_family
);
327 for (cp
= sa
->sa_len
+ (char *)sa
;
328 --cp
> sa
->sa_data
&& (*cp
== 0);) {}
329 n
= cp
- sa
->sa_data
+ 1;
333 m
+= printf("%02x%c", *cp
++ & 0xff,
344 * Fixup the statistics for interfaces that
345 * update stats for their network addresses
348 opackets
= ifaddr
.in
.ia_ifa
.if_opackets
;
349 ipackets
= ifaddr
.in
.ia_ifa
.if_ipackets
;
350 obytes
= ifaddr
.in
.ia_ifa
.if_obytes
;
351 ibytes
= ifaddr
.in
.ia_ifa
.if_ibytes
;
354 ifaddraddr
= (u_long
)TAILQ_NEXT(&ifaddr
.ifa
, ifa_link
);
357 show_stat("lu", 8, ipackets
, link_layer
|network_layer
);
359 show_stat("lu", 5, ierrors
, link_layer
);
362 show_stat("lu", 10, ibytes
, link_layer
|network_layer
);
365 show_stat("lu", 8, opackets
, link_layer
|network_layer
);
367 show_stat("lu", 5, oerrors
, link_layer
);
370 show_stat("lu", 10, obytes
, link_layer
|network_layer
);
373 show_stat("lu", 5, collisions
, link_layer
);
376 show_stat("d", 3, timer
, link_layer
);
380 show_stat("d", 3, drops
, link_layer
);
383 if (aflag
&& ifaddrfound
) {
385 * Print family's multicast addresses
388 struct ifmultiaddr ifma
;
391 struct sockaddr_in in
;
393 struct sockaddr_in6 in6
;
395 struct sockaddr_dl dl
;
399 for(multiaddr
= (u_long
)ifnet
.if_multiaddrs
.lh_first
;
401 multiaddr
= (u_long
)ifma
.ifma_link
.le_next
) {
402 if (kread(multiaddr
, (char *)&ifma
,
405 if (kread((u_long
)ifma
.ifma_addr
, (char *)&msa
,
408 if (msa
.sa
.sa_family
!= sa
->sa_family
)
412 switch (msa
.sa
.sa_family
) {
414 fmt
= routename(msa
.in
.sin_addr
.s_addr
);
418 printf("%23s %-19.19s(refs: %d)\n", "",
427 switch (msa
.dl
.sdl_type
) {
431 (struct ether_addr
*)
438 printf("%23s %s\n", "", fmt
);
445 SLIST_ENTRY(iftot
) chain
;
446 char ift_name
[IFNAMSIZ
]; /* interface name */
447 u_long ift_ip
; /* input packets */
448 u_long ift_ie
; /* input errors */
449 u_long ift_op
; /* output packets */
450 u_long ift_oe
; /* output errors */
451 u_long ift_co
; /* collisions */
452 u_int ift_dr
; /* drops */
453 u_long ift_ib
; /* input bytes */
454 u_long ift_ob
; /* output bytes */
457 u_char signalled
; /* set if alarm goes off "early" */
460 * Print a running summary of interface statistics.
461 * Repeat display every interval seconds, showing statistics
462 * collected over that interval. Assumes that interval is non-zero.
463 * First line printed at top of screen is always cumulative.
464 * XXX - should be rewritten to use ifmib(4).
467 sidewaysintpr(unsigned interval
, u_long off
)
471 struct ifnethead ifnethead
;
472 struct iftot
*iftot
, *ip
, *ipn
, *total
, *sum
, *interesting
;
475 u_long interesting_off
;
477 if (kread(off
, (char *)&ifnethead
, sizeof ifnethead
))
479 firstifnet
= (u_long
)TAILQ_FIRST(&ifnethead
);
481 if ((iftot
= malloc(sizeof(struct iftot
))) == NULL
) {
482 printf("malloc failed\n");
485 memset(iftot
, 0, sizeof(struct iftot
));
489 for (off
= firstifnet
, ip
= iftot
; off
;) {
492 if (kread(off
, (char *)&ifnet
, sizeof ifnet
))
494 strlcpy(name
, ifnet
.if_xname
, sizeof(name
));
495 if (interface
&& strcmp(name
, interface
) == 0) {
497 interesting_off
= off
;
499 snprintf(ip
->ift_name
, 16, "(%s)", name
);
500 if ((ipn
= malloc(sizeof(struct iftot
))) == NULL
) {
501 printf("malloc failed\n");
504 memset(ipn
, 0, sizeof(struct iftot
));
505 SLIST_NEXT(ip
, chain
) = ipn
;
507 off
= (u_long
)TAILQ_NEXT(&ifnet
, if_link
);
509 if ((total
= malloc(sizeof(struct iftot
))) == NULL
) {
510 printf("malloc failed\n");
513 memset(total
, 0, sizeof(struct iftot
));
514 if ((sum
= malloc(sizeof(struct iftot
))) == NULL
) {
515 printf("malloc failed\n");
518 memset(sum
, 0, sizeof(struct iftot
));
521 (void)signal(SIGALRM
, catchalarm
);
523 (void)alarm(interval
);
526 printf("%17s %14s %16s", "input",
527 interesting
? interesting
->ift_name
: "(Total)", "output");
529 printf("%10s %5s %10s %10s %5s %10s %5s",
530 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
532 printf(" %5.5s", "drops");
537 if (interesting
!= NULL
) {
539 if (kread(interesting_off
, (char *)&ifnet
, sizeof ifnet
)) {
544 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
545 ifnet
.if_ipackets
- ip
->ift_ip
,
546 ifnet
.if_ierrors
- ip
->ift_ie
,
547 ifnet
.if_ibytes
- ip
->ift_ib
,
548 ifnet
.if_opackets
- ip
->ift_op
,
549 ifnet
.if_oerrors
- ip
->ift_oe
,
550 ifnet
.if_obytes
- ip
->ift_ob
,
551 ifnet
.if_collisions
- ip
->ift_co
);
553 printf(" %5u", ifnet
.if_snd
.ifq_drops
- ip
->ift_dr
);
555 ip
->ift_ip
= ifnet
.if_ipackets
;
556 ip
->ift_ie
= ifnet
.if_ierrors
;
557 ip
->ift_ib
= ifnet
.if_ibytes
;
558 ip
->ift_op
= ifnet
.if_opackets
;
559 ip
->ift_oe
= ifnet
.if_oerrors
;
560 ip
->ift_ob
= ifnet
.if_obytes
;
561 ip
->ift_co
= ifnet
.if_collisions
;
562 ip
->ift_dr
= ifnet
.if_snd
.ifq_drops
;
572 for (off
= firstifnet
, ip
= iftot
;
573 off
&& SLIST_NEXT(ip
, chain
) != NULL
;
574 ip
= SLIST_NEXT(ip
, chain
)) {
575 if (kread(off
, (char *)&ifnet
, sizeof ifnet
)) {
579 sum
->ift_ip
+= ifnet
.if_ipackets
;
580 sum
->ift_ie
+= ifnet
.if_ierrors
;
581 sum
->ift_ib
+= ifnet
.if_ibytes
;
582 sum
->ift_op
+= ifnet
.if_opackets
;
583 sum
->ift_oe
+= ifnet
.if_oerrors
;
584 sum
->ift_ob
+= ifnet
.if_obytes
;
585 sum
->ift_co
+= ifnet
.if_collisions
;
586 sum
->ift_dr
+= ifnet
.if_snd
.ifq_drops
;
587 off
= (u_long
)TAILQ_NEXT(&ifnet
, if_link
);
590 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
591 sum
->ift_ip
- total
->ift_ip
,
592 sum
->ift_ie
- total
->ift_ie
,
593 sum
->ift_ib
- total
->ift_ib
,
594 sum
->ift_op
- total
->ift_op
,
595 sum
->ift_oe
- total
->ift_oe
,
596 sum
->ift_ob
- total
->ift_ob
,
597 sum
->ift_co
- total
->ift_co
);
599 printf(" %5u", sum
->ift_dr
- total
->ift_dr
);
606 oldmask
= sigblock(sigmask(SIGALRM
));
612 (void)alarm(interval
);
623 * Called if an interval expires before sidewaysintpr has completed a loop.
624 * Sets a flag to not wait for the alarm.
627 catchalarm(int signo __unused
)