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 1.12 2008/03/07 11:34:21 sephe 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 ifaddr_container ifac
;
111 struct ifnethead ifnethead
;
116 struct in6_ifaddr in6
;
118 struct ipx_ifaddr ipx
;
123 struct iso_ifaddr iso
;
127 u_long ifaddrcont_addr
;
139 struct sockaddr
*sa
= NULL
;
144 if (ifnetaddr
== 0) {
145 printf("ifnet: symbol not defined\n");
149 sidewaysintpr((unsigned)interval
, ifnetaddr
);
152 if (kread(ifnetaddr
, (char *)&ifnethead
, sizeof ifnethead
))
154 ifnetaddr
= (u_long
)TAILQ_FIRST(&ifnethead
);
155 if (kread(ifnetaddr
, (char *)&ifnet
, sizeof ifnet
))
159 printf("%-7.7s %-5.5s %-13.13s %-15.15s %8.8s %5.5s",
160 "Name", "Mtu", "Network", "Address", "Ipkts", "Ierrs");
162 printf(" %10.10s","Ibytes");
163 printf(" %8.8s %5.5s", "Opkts", "Oerrs");
165 printf(" %10.10s","Obytes");
166 printf(" %5s", "Coll");
168 printf(" %s", "Time");
170 printf(" %s", "Drop");
174 while (ifnetaddr
|| ifaddraddr
) {
175 struct sockaddr_in
*sin
;
177 struct sockaddr_in6
*sin6
;
185 if (ifaddraddr
== 0) {
186 struct ifaddrhead head
;
188 ifnetfound
= ifnetaddr
;
189 if (kread(ifnetaddr
, (char *)&ifnet
, sizeof ifnet
))
191 strlcpy(name
, ifnet
.if_xname
, sizeof(name
));
192 ifnetaddr
= (u_long
)TAILQ_NEXT(&ifnet
, if_link
);
193 if (interface
!= 0 && (strcmp(name
, interface
) != 0))
195 cp
= strchr(name
, '\0');
202 if ((ifnet
.if_flags
&IFF_UP
) == 0)
206 if (kread((u_long
)ifnet
.if_addrheads
,
207 (char *)&head
, sizeof(head
)))
211 (u_long
)TAILQ_FIRST(&head
);
212 if (ifaddrcont_addr
== 0) {
215 if (kread(ifaddrcont_addr
, (char *)&ifac
,
218 ifaddraddr
= (u_long
)ifac
.ifa
;
221 ifaddrfound
= ifaddraddr
;
224 * Get the interface stats. These may get
225 * overriden below on a per-interface basis.
227 opackets
= ifnet
.if_opackets
;
228 ipackets
= ifnet
.if_ipackets
;
229 obytes
= ifnet
.if_obytes
;
230 ibytes
= ifnet
.if_ibytes
;
231 oerrors
= ifnet
.if_oerrors
;
232 ierrors
= ifnet
.if_ierrors
;
233 collisions
= ifnet
.if_collisions
;
234 timer
= ifnet
.if_timer
;
235 drops
= ifnet
.if_snd
.ifq_drops
;
237 if (ifaddraddr
== 0) {
238 printf("%-7.7s %-5lu ", name
, ifnet
.if_mtu
);
239 printf("%-13.13s ", "none");
240 printf("%-15.15s ", "none");
242 if (kread(ifaddraddr
, (char *)&ifaddr
, sizeof ifaddr
)) {
246 #define CP(x) ((char *)(x))
247 cp
= (CP(ifaddr
.ifa
.ifa_addr
) - CP(ifaddraddr
)) +
249 sa
= (struct sockaddr
*)cp
;
250 if (af
!= AF_UNSPEC
&& sa
->sa_family
!= af
) {
252 (u_long
)TAILQ_NEXT(&ifac
, ifa_link
);
253 if (ifaddrcont_addr
== 0) {
256 if (kread(ifaddrcont_addr
,
257 (char *)&ifac
, sizeof(ifac
))) {
261 ifaddraddr
= (u_long
)ifac
.ifa
;
265 printf("%-7.7s %-5lu ", name
, ifnet
.if_mtu
);
266 switch (sa
->sa_family
) {
268 printf("%-13.13s ", "none");
269 printf("%-15.15s ", "none");
272 sin
= (struct sockaddr_in
*)sa
;
274 /* can't use inet_makeaddr because kernel
275 * keeps nets unshifted.
277 in
= inet_makeaddr(ifaddr
.in
.ia_subnet
,
279 printf("%-13.13s ", netname(in
.s_addr
,
280 ifaddr
.in
.ia_subnetmask
));
283 netname(htonl(ifaddr
.in
.ia_subnet
),
284 ifaddr
.in
.ia_subnetmask
));
287 routename(sin
->sin_addr
.s_addr
));
293 sin6
= (struct sockaddr_in6
*)sa
;
295 netname6(&ifaddr
.in6
.ia_addr
,
296 &ifaddr
.in6
.ia_prefixmask
.sin6_addr
));
298 (char *)inet_ntop(AF_INET6
,
300 ntop_buf
, sizeof(ntop_buf
)));
307 struct sockaddr_ipx
*sipx
=
308 (struct sockaddr_ipx
*)sa
;
312 *(union ipx_net
*) &net
= sipx
->sipx_addr
.x_net
;
313 sprintf(netnum
, "%lx", (u_long
)ntohl(net
));
314 printf("ipx:%-8s ", netnum
);
315 /* printf("ipx:%-8s ", netname(net, 0L)); */
317 ipx_phost((struct sockaddr
*)sipx
));
322 printf("atalk:%-12.12s ",atalk_print(sa
,0x10) );
323 printf("%-9.9s ",atalk_print(sa
,0x0b) );
328 struct sockaddr_ns
*sns
=
329 (struct sockaddr_ns
*)sa
;
333 *(union ns_net
*) &net
= sns
->sns_addr
.x_net
;
334 sprintf(netnum
, "%lxH", ntohl(net
));
336 printf("ns:%-8s ", netnum
);
338 ns_phost((struct sockaddr
*)sns
));
344 struct sockaddr_dl
*sdl
=
345 (struct sockaddr_dl
*)sa
;
347 cp
= (char *)LLADDR(sdl
);
349 sprintf(linknum
, "<Link#%d>", sdl
->sdl_index
);
350 m
= printf("%-11.11s ", linknum
);
354 m
= printf("(%d)", sa
->sa_family
);
355 for (cp
= sa
->sa_len
+ (char *)sa
;
356 --cp
> sa
->sa_data
&& (*cp
== 0);) {}
357 n
= cp
- sa
->sa_data
+ 1;
361 m
+= printf("%02x%c", *cp
++ & 0xff,
372 * Fixup the statistics for interfaces that
373 * update stats for their network addresses
376 opackets
= ifaddr
.in
.ia_ifa
.if_opackets
;
377 ipackets
= ifaddr
.in
.ia_ifa
.if_ipackets
;
378 obytes
= ifaddr
.in
.ia_ifa
.if_obytes
;
379 ibytes
= ifaddr
.in
.ia_ifa
.if_ibytes
;
383 (u_long
)TAILQ_NEXT(&ifac
, ifa_link
);
384 if (ifaddrcont_addr
== 0) {
387 if (kread(ifaddrcont_addr
,
388 (char *)&ifac
, sizeof(ifac
))) {
391 ifaddraddr
= (u_long
)ifac
.ifa
;
396 show_stat("lu", 8, ipackets
, link_layer
|network_layer
);
398 show_stat("lu", 5, ierrors
, link_layer
);
401 show_stat("lu", 10, ibytes
, link_layer
|network_layer
);
404 show_stat("lu", 8, opackets
, link_layer
|network_layer
);
406 show_stat("lu", 5, oerrors
, link_layer
);
409 show_stat("lu", 10, obytes
, link_layer
|network_layer
);
412 show_stat("lu", 5, collisions
, link_layer
);
415 show_stat("d", 3, timer
, link_layer
);
419 show_stat("d", 3, drops
, link_layer
);
422 if (aflag
&& ifaddrfound
) {
424 * Print family's multicast addresses
427 struct ifmultiaddr ifma
;
430 struct sockaddr_in in
;
432 struct sockaddr_in6 in6
;
434 struct sockaddr_dl dl
;
438 for(multiaddr
= (u_long
)ifnet
.if_multiaddrs
.lh_first
;
440 multiaddr
= (u_long
)ifma
.ifma_link
.le_next
) {
441 if (kread(multiaddr
, (char *)&ifma
,
444 if (kread((u_long
)ifma
.ifma_addr
, (char *)&msa
,
447 if (msa
.sa
.sa_family
!= sa
->sa_family
)
451 switch (msa
.sa
.sa_family
) {
453 fmt
= routename(msa
.in
.sin_addr
.s_addr
);
457 printf("%23s %-19.19s(refs: %d)\n", "",
466 switch (msa
.dl
.sdl_type
) {
470 (struct ether_addr
*)
477 printf("%23s %s\n", "", fmt
);
484 SLIST_ENTRY(iftot
) chain
;
485 char ift_name
[IFNAMSIZ
]; /* interface name */
486 u_long ift_ip
; /* input packets */
487 u_long ift_ie
; /* input errors */
488 u_long ift_op
; /* output packets */
489 u_long ift_oe
; /* output errors */
490 u_long ift_co
; /* collisions */
491 u_int ift_dr
; /* drops */
492 u_long ift_ib
; /* input bytes */
493 u_long ift_ob
; /* output bytes */
496 u_char signalled
; /* set if alarm goes off "early" */
499 * Print a running summary of interface statistics.
500 * Repeat display every interval seconds, showing statistics
501 * collected over that interval. Assumes that interval is non-zero.
502 * First line printed at top of screen is always cumulative.
503 * XXX - should be rewritten to use ifmib(4).
506 sidewaysintpr(unsigned interval
, u_long off
)
510 struct ifnethead ifnethead
;
511 struct iftot
*iftot
, *ip
, *ipn
, *total
, *sum
, *interesting
;
514 u_long interesting_off
;
516 if (kread(off
, (char *)&ifnethead
, sizeof ifnethead
))
518 firstifnet
= (u_long
)TAILQ_FIRST(&ifnethead
);
520 if ((iftot
= malloc(sizeof(struct iftot
))) == NULL
) {
521 printf("malloc failed\n");
524 memset(iftot
, 0, sizeof(struct iftot
));
528 for (off
= firstifnet
, ip
= iftot
; off
;) {
531 if (kread(off
, (char *)&ifnet
, sizeof ifnet
))
533 strlcpy(name
, ifnet
.if_xname
, sizeof(name
));
534 if (interface
&& strcmp(name
, interface
) == 0) {
536 interesting_off
= off
;
538 snprintf(ip
->ift_name
, 16, "(%s)", name
);
539 if ((ipn
= malloc(sizeof(struct iftot
))) == NULL
) {
540 printf("malloc failed\n");
543 memset(ipn
, 0, sizeof(struct iftot
));
544 SLIST_NEXT(ip
, chain
) = ipn
;
546 off
= (u_long
)TAILQ_NEXT(&ifnet
, if_link
);
548 if ((total
= malloc(sizeof(struct iftot
))) == NULL
) {
549 printf("malloc failed\n");
552 memset(total
, 0, sizeof(struct iftot
));
553 if ((sum
= malloc(sizeof(struct iftot
))) == NULL
) {
554 printf("malloc failed\n");
557 memset(sum
, 0, sizeof(struct iftot
));
560 (void)signal(SIGALRM
, catchalarm
);
562 (void)alarm(interval
);
565 printf("%17s %14s %16s", "input",
566 interesting
? interesting
->ift_name
: "(Total)", "output");
568 printf("%10s %5s %10s %10s %5s %10s %5s",
569 "packets", "errs", "bytes", "packets", "errs", "bytes", "colls");
571 printf(" %5.5s", "drops");
576 if (interesting
!= NULL
) {
578 if (kread(interesting_off
, (char *)&ifnet
, sizeof ifnet
)) {
583 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
584 ifnet
.if_ipackets
- ip
->ift_ip
,
585 ifnet
.if_ierrors
- ip
->ift_ie
,
586 ifnet
.if_ibytes
- ip
->ift_ib
,
587 ifnet
.if_opackets
- ip
->ift_op
,
588 ifnet
.if_oerrors
- ip
->ift_oe
,
589 ifnet
.if_obytes
- ip
->ift_ob
,
590 ifnet
.if_collisions
- ip
->ift_co
);
592 printf(" %5u", ifnet
.if_snd
.ifq_drops
- ip
->ift_dr
);
594 ip
->ift_ip
= ifnet
.if_ipackets
;
595 ip
->ift_ie
= ifnet
.if_ierrors
;
596 ip
->ift_ib
= ifnet
.if_ibytes
;
597 ip
->ift_op
= ifnet
.if_opackets
;
598 ip
->ift_oe
= ifnet
.if_oerrors
;
599 ip
->ift_ob
= ifnet
.if_obytes
;
600 ip
->ift_co
= ifnet
.if_collisions
;
601 ip
->ift_dr
= ifnet
.if_snd
.ifq_drops
;
611 for (off
= firstifnet
, ip
= iftot
;
612 off
&& SLIST_NEXT(ip
, chain
) != NULL
;
613 ip
= SLIST_NEXT(ip
, chain
)) {
614 if (kread(off
, (char *)&ifnet
, sizeof ifnet
)) {
618 sum
->ift_ip
+= ifnet
.if_ipackets
;
619 sum
->ift_ie
+= ifnet
.if_ierrors
;
620 sum
->ift_ib
+= ifnet
.if_ibytes
;
621 sum
->ift_op
+= ifnet
.if_opackets
;
622 sum
->ift_oe
+= ifnet
.if_oerrors
;
623 sum
->ift_ob
+= ifnet
.if_obytes
;
624 sum
->ift_co
+= ifnet
.if_collisions
;
625 sum
->ift_dr
+= ifnet
.if_snd
.ifq_drops
;
626 off
= (u_long
)TAILQ_NEXT(&ifnet
, if_link
);
629 printf("%10lu %5lu %10lu %10lu %5lu %10lu %5lu",
630 sum
->ift_ip
- total
->ift_ip
,
631 sum
->ift_ie
- total
->ift_ie
,
632 sum
->ift_ib
- total
->ift_ib
,
633 sum
->ift_op
- total
->ift_op
,
634 sum
->ift_oe
- total
->ift_oe
,
635 sum
->ift_ob
- total
->ift_ob
,
636 sum
->ift_co
- total
->ift_co
);
638 printf(" %5u", sum
->ift_dr
- total
->ift_dr
);
645 oldmask
= sigblock(sigmask(SIGALRM
));
651 (void)alarm(interval
);
662 * Called if an interval expires before sidewaysintpr has completed a loop.
663 * Sets a flag to not wait for the alarm.
666 catchalarm(int signo __unused
)