2 * Copyright (c) 1983, 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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 static const char copyright[] =
32 "@(#) Copyright (c) 1983, 1993\n\
33 The Regents of the University of California. All rights reserved.\n";
38 static char sccsid[] = "@(#)ifconfig.c 8.2 (Berkeley) 2/16/94";
40 static const char rcsid[] =
44 #include <sys/param.h>
45 #include <sys/ioctl.h>
46 #include <sys/module.h>
47 #include <sys/linker.h>
48 #include <sys/socket.h>
51 #include <net/ethernet.h>
53 #include <net/if_var.h>
54 #include <net/if_dl.h>
55 #include <net/if_types.h>
56 #include <net/route.h>
59 #include <netinet/in.h>
60 #include <netinet/in_var.h>
61 #include <arpa/inet.h>
80 * Since "struct ifreq" is composed of various union members, callers
81 * should pay special attention to interpret the value.
82 * (.e.g. little/big endian difference in the structure.)
98 int printkeys = 0; /* Print keying material for interfaces. */
100 static int ifconfig(int argc, char *const *argv, int iscreate,
101 const struct afswtch *afp);
102 static void status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
103 struct ifaddrs *ifa);
104 static void tunnel_status(int s);
105 static void usage(void);
107 static struct afswtch *af_getbyname(const char *name);
108 static struct afswtch *af_getbyfamily(int af);
109 static void af_other_status(int);
111 static struct option *opts = NULL;
114 opt_register(struct option *p)
126 /* XXX not right but close enough for now */
128 for (p = opts; p != NULL; p = p->next) {
129 strlcat(options, p->opt_usage, sizeof(options));
130 strlcat(options, " ", sizeof(options));
134 "usage: ifconfig %sinterface address_family [address [dest_address]]\n"
136 " ifconfig interface create\n"
137 " ifconfig -a %s[-d] [-m] [-u] [-v] [address_family]\n"
138 " ifconfig -l [-d] [-u] [address_family]\n"
139 " ifconfig %s[-d] [-m] [-u] [-v]\n",
140 options, options, options);
145 main(int argc, char *argv[])
147 int c, all, namesonly, downonly, uponly;
148 const struct afswtch *afp = NULL;
150 struct ifaddrs *ifap, *ifa;
152 const struct sockaddr_dl *sdl;
153 char options[1024], *cp, *namecp = NULL;
158 all = downonly = uponly = namesonly = noload = verbose = 0;
160 /* Parse leading line options */
161 strlcpy(options, "adklmnuv", sizeof(options));
162 for (p = opts; p != NULL; p = p->next)
163 strlcat(options, p->opt, sizeof(options));
164 while ((c = getopt(argc, argv, options)) != -1) {
166 case 'a': /* scan all interfaces */
169 case 'd': /* restrict scan to "down" interfaces */
175 case 'l': /* scan interface names only */
178 case 'm': /* show media choices in status */
181 case 'n': /* suppress module loading */
184 case 'u': /* restrict scan to "up" interfaces */
191 for (p = opts; p != NULL; p = p->next)
192 if (p->opt[0] == c) {
204 /* -l cannot be used with -a or -m */
205 if (namesonly && (all || supmedia))
209 if (uponly && downonly)
212 /* no arguments is equivalent to '-a' */
213 if (!namesonly && argc < 1)
216 /* -a and -l allow an address family arg to limit the output */
217 if (all || namesonly) {
224 afp = af_getbyname(*argv);
226 warnx("Address family '%s' unknown.", *argv);
229 if (afp->af_name != NULL)
231 /* leave with afp non-zero */
234 /* not listing, need an argument */
241 /* check and maybe load support for this interface */
244 ifindex = if_nametoindex(ifname);
247 * NOTE: We must special-case the `create' command
248 * right here as we would otherwise fail when trying
249 * to find the interface.
251 if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
252 strcmp(argv[0], "plumb") == 0)) {
253 iflen = strlcpy(name, ifname, sizeof(name));
254 if (iflen >= sizeof(name))
255 errx(1, "%s: cloning name too long",
257 ifconfig(argc, argv, 1, NULL);
262 * NOTE: We have to special-case the `-vnet' command
263 * right here as we would otherwise fail when trying
264 * to find the interface as it lives in another vnet.
266 if (argc > 0 && (strcmp(argv[0], "-vnet") == 0)) {
267 iflen = strlcpy(name, ifname, sizeof(name));
268 if (iflen >= sizeof(name))
269 errx(1, "%s: interface name too long",
271 ifconfig(argc, argv, 0, NULL);
275 errx(1, "interface %s does not exist", ifname);
279 /* Check for address family */
281 afp = af_getbyname(*argv);
286 if (getifaddrs(&ifap) != 0)
287 err(EXIT_FAILURE, "getifaddrs");
290 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
291 memset(&paifr, 0, sizeof(paifr));
292 strncpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name));
293 if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) {
294 memcpy(&paifr.ifr_addr, ifa->ifa_addr,
295 ifa->ifa_addr->sa_len);
298 if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0)
300 if (ifa->ifa_addr->sa_family == AF_LINK)
301 sdl = (const struct sockaddr_dl *) ifa->ifa_addr;
304 if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0 && !namesonly)
306 iflen = strlcpy(name, ifa->ifa_name, sizeof(name));
307 if (iflen >= sizeof(name)) {
308 warnx("%s: interface name too long, skipping",
314 if ((ifa->ifa_flags & IFF_CANTCONFIG) != 0)
316 if (downonly && (ifa->ifa_flags & IFF_UP) != 0)
318 if (uponly && (ifa->ifa_flags & IFF_UP) == 0)
321 * Are we just listing the interfaces?
327 /* special case for "ether" address family */
328 if (!strcmp(afp->af_name, "ether")) {
330 (sdl->sdl_type != IFT_ETHER &&
331 sdl->sdl_type != IFT_L2VLAN &&
332 sdl->sdl_type != IFT_BRIDGE) ||
333 sdl->sdl_alen != ETHER_ADDR_LEN)
336 if (ifa->ifa_addr->sa_family != afp->af_af)
350 ifconfig(argc, argv, 0, afp);
352 status(afp, sdl, ifa);
361 static struct afswtch *afs = NULL;
364 af_register(struct afswtch *p)
370 static struct afswtch *
371 af_getbyname(const char *name)
375 for (afp = afs; afp != NULL; afp = afp->af_next)
376 if (strcmp(afp->af_name, name) == 0)
381 static struct afswtch *
382 af_getbyfamily(int af)
386 for (afp = afs; afp != NULL; afp = afp->af_next)
387 if (afp->af_af == af)
393 af_other_status(int s)
396 uint8_t afmask[howmany(AF_MAX, NBBY)];
398 memset(afmask, 0, sizeof(afmask));
399 for (afp = afs; afp != NULL; afp = afp->af_next) {
400 if (afp->af_other_status == NULL)
402 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
404 afp->af_other_status(s);
405 setbit(afmask, afp->af_af);
410 af_all_tunnel_status(int s)
413 uint8_t afmask[howmany(AF_MAX, NBBY)];
415 memset(afmask, 0, sizeof(afmask));
416 for (afp = afs; afp != NULL; afp = afp->af_next) {
417 if (afp->af_status_tunnel == NULL)
419 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
421 afp->af_status_tunnel(s);
422 setbit(afmask, afp->af_af);
426 static struct cmd *cmds = NULL;
429 cmd_register(struct cmd *p)
435 static const struct cmd *
436 cmd_lookup(const char *name, int iscreate)
440 for (p = cmds; p != NULL; p = p->c_next)
441 if (strcmp(name, p->c_name) == 0) {
454 callback_func *cb_func;
456 struct callback *cb_next;
458 static struct callback *callbacks = NULL;
461 callback_register(callback_func *func, void *arg)
465 cb = malloc(sizeof(struct callback));
467 errx(1, "unable to allocate memory for callback");
470 cb->cb_next = callbacks;
474 /* specially-handled commands */
475 static void setifaddr(const char *, int, int, const struct afswtch *);
476 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
478 static void setifdstaddr(const char *, int, int, const struct afswtch *);
479 static const struct cmd setifdstaddr_cmd =
480 DEF_CMD("ifdstaddr", 0, setifdstaddr);
483 ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
485 const struct afswtch *afp, *nafp;
490 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
495 * This is the historical "accident" allowing users to configure IPv4
496 * addresses without the "inet" keyword which while a nice feature has
497 * proven to complicate other things. We cannot remove this but only
498 * make sure we will never have a similar implicit default for IPv6 or
499 * any other address familiy. We need a fallback though for
500 * ifconfig IF up/down etc. to work without INET support as people
501 * never used ifconfig IF link up/down, etc. either.
505 if (afp == NULL && feature_present("inet"))
506 afp = af_getbyname("inet");
510 afp = af_getbyname("link");
512 warnx("Please specify an address_family.");
516 ifr.ifr_addr.sa_family =
517 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
518 AF_LOCAL : afp->af_af;
520 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
521 (uafp != NULL || errno != EAFNOSUPPORT ||
522 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
523 err(1, "socket(family %u,SOCK_DGRAM", ifr.ifr_addr.sa_family);
526 p = cmd_lookup(*argv, iscreate);
527 if (iscreate && p == NULL) {
529 * Push the clone create callback so the new
530 * device is created and can be used for any
531 * remaining arguments.
535 errx(1, "internal error, no callback");
536 callbacks = cb->cb_next;
537 cb->cb_func(s, cb->cb_arg);
540 * Handle any address family spec that
541 * immediately follows and potentially
542 * recreate the socket.
544 nafp = af_getbyname(*argv);
554 * Look for a normal parameter.
560 * Not a recognized command, choose between setting
561 * the interface address and the dst address.
563 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
565 if (p->c_u.c_func || p->c_u.c_func2) {
566 if (p->c_parameter == NEXTARG) {
568 errx(1, "'%s' requires argument",
570 p->c_u.c_func(argv[1], 0, s, afp);
572 } else if (p->c_parameter == OPTARG) {
573 p->c_u.c_func(argv[1], 0, s, afp);
576 } else if (p->c_parameter == NEXTARG2) {
578 errx(1, "'%s' requires 2 arguments",
580 p->c_u.c_func2(argv[1], argv[2], s, afp);
581 argc -= 2, argv += 2;
583 p->c_u.c_func(*argv, p->c_parameter, s, afp);
589 * Do any post argument processing required by the address family.
591 if (afp->af_postproc != NULL)
592 afp->af_postproc(s, afp);
594 * Do deferred callbacks registered while processing
595 * command-line arguments.
597 for (cb = callbacks; cb != NULL; cb = cb->cb_next)
598 cb->cb_func(s, cb->cb_arg);
600 * Do deferred operations.
603 if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
604 warnx("interface %s cannot change %s addresses!",
611 strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
612 ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
614 if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
615 /* means no previous address for interface */
617 Perror("ioctl (SIOCDIFADDR)");
621 if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
622 warnx("interface %s cannot change %s addresses!",
627 if (newaddr && (setaddr || setmask)) {
628 strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
629 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
630 Perror("ioctl (SIOCAIFADDR)");
639 setifaddr(const char *addr, int param, int s, const struct afswtch *afp)
641 if (afp->af_getaddr == NULL)
644 * Delay the ioctl to set the interface addr until flags are all set.
645 * The address interpretation may depend on the flags,
646 * and the flags may change when the address is set.
649 if (doalias == 0 && afp->af_af != AF_LINK)
651 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
655 settunnel(const char *src, const char *dst, int s, const struct afswtch *afp)
657 struct addrinfo *srcres, *dstres;
660 if (afp->af_settunnel == NULL) {
661 warn("address family %s does not support tunnel setup",
666 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
667 errx(1, "error in parsing address string: %s",
668 gai_strerror(ecode));
670 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
671 errx(1, "error in parsing address string: %s",
672 gai_strerror(ecode));
674 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
676 "source and destination address families do not match");
678 afp->af_settunnel(s, srcres, dstres);
680 freeaddrinfo(srcres);
681 freeaddrinfo(dstres);
686 deletetunnel(const char *vname, int param, int s, const struct afswtch *afp)
689 if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
690 err(1, "SIOCDIFPHYADDR");
695 setifvnet(const char *jname, int dummy __unused, int s,
696 const struct afswtch *afp)
700 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
701 my_ifr.ifr_jid = jail_getid(jname);
702 if (my_ifr.ifr_jid < 0)
703 errx(1, "%s", jail_errmsg);
704 if (ioctl(s, SIOCSIFVNET, &my_ifr) < 0)
705 err(1, "SIOCSIFVNET");
709 setifrvnet(const char *jname, int dummy __unused, int s,
710 const struct afswtch *afp)
714 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
715 my_ifr.ifr_jid = jail_getid(jname);
716 if (my_ifr.ifr_jid < 0)
717 errx(1, "%s", jail_errmsg);
718 if (ioctl(s, SIOCSIFRVNET, &my_ifr) < 0)
719 err(1, "SIOCSIFRVNET(%d, %s)", my_ifr.ifr_jid, my_ifr.ifr_name);
724 setifnetmask(const char *addr, int dummy __unused, int s,
725 const struct afswtch *afp)
727 if (afp->af_getaddr != NULL) {
729 afp->af_getaddr(addr, MASK);
734 setifbroadaddr(const char *addr, int dummy __unused, int s,
735 const struct afswtch *afp)
737 if (afp->af_getaddr != NULL)
738 afp->af_getaddr(addr, DSTADDR);
742 setifipdst(const char *addr, int dummy __unused, int s,
743 const struct afswtch *afp)
745 const struct afswtch *inet;
747 inet = af_getbyname("inet");
750 inet->af_getaddr(addr, DSTADDR);
756 notealias(const char *addr, int param, int s, const struct afswtch *afp)
758 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
759 if (setaddr && doalias == 0 && param < 0)
760 if (afp->af_addreq != NULL && afp->af_ridreq != NULL)
761 bcopy((caddr_t)rqtosa(af_addreq),
762 (caddr_t)rqtosa(af_ridreq),
763 rqtosa(af_addreq)->sa_len);
775 setifdstaddr(const char *addr, int param __unused, int s,
776 const struct afswtch *afp)
778 if (afp->af_getaddr != NULL)
779 afp->af_getaddr(addr, DSTADDR);
783 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion
784 * of the ifreq structure, which may confuse other parts of ifconfig.
785 * Make a private copy so we can avoid that.
788 setifflags(const char *vname, int value, int s, const struct afswtch *afp)
793 memset(&my_ifr, 0, sizeof(my_ifr));
794 (void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));
796 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
797 Perror("ioctl (SIOCGIFFLAGS)");
800 flags = (my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16);
807 my_ifr.ifr_flags = flags & 0xffff;
808 my_ifr.ifr_flagshigh = flags >> 16;
809 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
814 setifcap(const char *vname, int value, int s, const struct afswtch *afp)
818 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) {
819 Perror("ioctl (SIOCGIFCAP)");
822 flags = ifr.ifr_curcap;
828 flags &= ifr.ifr_reqcap;
829 ifr.ifr_reqcap = flags;
830 if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0)
835 setifmetric(const char *val, int dummy __unused, int s,
836 const struct afswtch *afp)
838 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
839 ifr.ifr_metric = atoi(val);
840 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
841 err(1, "ioctl SIOCSIFMETRIC (set metric)");
845 setifmtu(const char *val, int dummy __unused, int s,
846 const struct afswtch *afp)
848 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
849 ifr.ifr_mtu = atoi(val);
850 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
851 err(1, "ioctl SIOCSIFMTU (set mtu)");
855 setifname(const char *val, int dummy __unused, int s,
856 const struct afswtch *afp)
860 newname = strdup(val);
862 err(1, "no memory to set ifname");
863 ifr.ifr_data = newname;
864 if (ioctl(s, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
866 err(1, "ioctl SIOCSIFNAME (set name)");
868 strlcpy(name, newname, sizeof(name));
874 setifdescr(const char *val, int dummy __unused, int s,
875 const struct afswtch *afp)
879 ifr.ifr_buffer.length = strlen(val) + 1;
880 if (ifr.ifr_buffer.length == 1) {
881 ifr.ifr_buffer.buffer = newdescr = NULL;
882 ifr.ifr_buffer.length = 0;
884 newdescr = strdup(val);
885 ifr.ifr_buffer.buffer = newdescr;
886 if (newdescr == NULL) {
887 warn("no memory to set ifdescr");
892 if (ioctl(s, SIOCSIFDESCR, (caddr_t)&ifr) < 0)
893 err(1, "ioctl SIOCSIFDESCR (set descr)");
900 unsetifdescr(const char *val, int value, int s, const struct afswtch *afp)
903 setifdescr("", 0, s, 0);
907 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \
908 "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
909 "\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP"
912 "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
913 "\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \
914 "\17TOE4\20TOE6\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE\25NETMAP" \
915 "\26RXCSUM_IPV6\27TXCSUM_IPV6"
918 * Print the status of the interface. If an address family was
919 * specified, show only it; otherwise, show them all.
922 status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
931 ifr.ifr_addr.sa_family = AF_LOCAL;
934 ifr.ifr_addr.sa_family =
935 afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af;
937 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
939 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
941 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
943 printf("%s: ", name);
944 printb("flags", ifa->ifa_flags, IFFBITS);
945 if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1)
946 printf(" metric %d", ifr.ifr_metric);
947 if (ioctl(s, SIOCGIFMTU, &ifr) != -1)
948 printf(" mtu %d", ifr.ifr_mtu);
952 if ((descr = reallocf(descr, descrlen)) != NULL) {
953 ifr.ifr_buffer.buffer = descr;
954 ifr.ifr_buffer.length = descrlen;
955 if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) {
956 if (ifr.ifr_buffer.buffer == descr) {
957 if (strlen(descr) > 0)
958 printf("\tdescription: %s\n",
960 } else if (ifr.ifr_buffer.length > descrlen) {
961 descrlen = ifr.ifr_buffer.length;
966 warn("unable to allocate memory for interface"
971 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
972 if (ifr.ifr_curcap != 0) {
973 printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
976 if (supmedia && ifr.ifr_reqcap != 0) {
977 printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS);
984 for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
985 if (ift->ifa_addr == NULL)
987 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
990 const struct afswtch *p;
991 p = af_getbyfamily(ift->ifa_addr->sa_family);
992 if (p != NULL && p->af_status != NULL)
993 p->af_status(s, ift);
994 } else if (afp->af_af == ift->ifa_addr->sa_family)
995 afp->af_status(s, ift);
998 if (allfamilies || afp->af_af == AF_LINK) {
999 const struct afswtch *lafp;
1002 * Hack; the link level address is received separately
1003 * from the routing information so any address is not
1004 * handled above. Cobble together an entry and invoke
1005 * the status method specially.
1007 lafp = af_getbyname("lladdr");
1009 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
1010 lafp->af_status(s, &info);
1016 else if (afp->af_other_status != NULL)
1017 afp->af_other_status(s);
1019 strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
1020 if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
1021 printf("%s", ifs.ascii);
1024 sfp_status(s, &ifr, verbose);
1031 tunnel_status(int s)
1033 af_all_tunnel_status(s);
1037 Perror(const char *cmd)
1042 errx(1, "%s: no such interface", cmd);
1046 errx(1, "%s: permission denied", cmd);
1055 * Print a value a la the %b format of the kernel's printf
1058 printb(const char *s, unsigned v, const char *bits)
1063 if (bits && *bits == 8)
1064 printf("%s=%o", s, v);
1066 printf("%s=%x", s, v);
1070 while ((i = *bits++) != '\0') {
1071 if (v & (1 << (i-1))) {
1075 for (; (c = *bits) > 32; bits++)
1078 for (; *bits > 32; bits++)
1086 print_vhid(const struct ifaddrs *ifa, const char *s)
1088 struct if_data *ifd;
1090 if (ifa->ifa_data == NULL)
1093 ifd = ifa->ifa_data;
1094 if (ifd->ifi_vhid == 0)
1097 printf("vhid %d ", ifd->ifi_vhid);
1101 ifmaybeload(const char *name)
1103 #define MOD_PREFIX_LEN 3 /* "if_" */
1104 struct module_stat mstat;
1106 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
1109 /* loading suppressed by the user */
1113 /* trim the interface number off the end */
1114 strlcpy(ifname, name, sizeof(ifname));
1115 for (dp = ifname; *dp != 0; dp++)
1121 /* turn interface and unit into module name */
1122 strlcpy(ifkind, "if_", sizeof(ifkind));
1123 strlcat(ifkind, ifname, sizeof(ifkind));
1125 /* scan files in kernel */
1126 mstat.version = sizeof(struct module_stat);
1127 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
1128 /* scan modules in file */
1129 for (modid = kldfirstmod(fileid); modid > 0;
1130 modid = modfnext(modid)) {
1131 if (modstat(modid, &mstat) < 0)
1133 /* strip bus name if present */
1134 if ((cp = strchr(mstat.name, '/')) != NULL) {
1139 /* already loaded? */
1140 if (strcmp(ifname, cp) == 0 ||
1141 strcmp(ifkind, cp) == 0)
1146 /* not present, we should try to load it */
1150 static struct cmd basic_cmds[] = {
1151 DEF_CMD("up", IFF_UP, setifflags),
1152 DEF_CMD("down", -IFF_UP, setifflags),
1153 DEF_CMD("arp", -IFF_NOARP, setifflags),
1154 DEF_CMD("-arp", IFF_NOARP, setifflags),
1155 DEF_CMD("debug", IFF_DEBUG, setifflags),
1156 DEF_CMD("-debug", -IFF_DEBUG, setifflags),
1157 DEF_CMD_ARG("description", setifdescr),
1158 DEF_CMD_ARG("descr", setifdescr),
1159 DEF_CMD("-description", 0, unsetifdescr),
1160 DEF_CMD("-descr", 0, unsetifdescr),
1161 DEF_CMD("promisc", IFF_PPROMISC, setifflags),
1162 DEF_CMD("-promisc", -IFF_PPROMISC, setifflags),
1163 DEF_CMD("add", IFF_UP, notealias),
1164 DEF_CMD("alias", IFF_UP, notealias),
1165 DEF_CMD("-alias", -IFF_UP, notealias),
1166 DEF_CMD("delete", -IFF_UP, notealias),
1167 DEF_CMD("remove", -IFF_UP, notealias),
1169 #define EN_SWABIPS 0x1000
1170 DEF_CMD("swabips", EN_SWABIPS, setifflags),
1171 DEF_CMD("-swabips", -EN_SWABIPS, setifflags),
1173 DEF_CMD_ARG("netmask", setifnetmask),
1174 DEF_CMD_ARG("metric", setifmetric),
1175 DEF_CMD_ARG("broadcast", setifbroadaddr),
1176 DEF_CMD_ARG("ipdst", setifipdst),
1177 DEF_CMD_ARG2("tunnel", settunnel),
1178 DEF_CMD("-tunnel", 0, deletetunnel),
1179 DEF_CMD("deletetunnel", 0, deletetunnel),
1181 DEF_CMD_ARG("vnet", setifvnet),
1182 DEF_CMD_ARG("-vnet", setifrvnet),
1184 DEF_CMD("link0", IFF_LINK0, setifflags),
1185 DEF_CMD("-link0", -IFF_LINK0, setifflags),
1186 DEF_CMD("link1", IFF_LINK1, setifflags),
1187 DEF_CMD("-link1", -IFF_LINK1, setifflags),
1188 DEF_CMD("link2", IFF_LINK2, setifflags),
1189 DEF_CMD("-link2", -IFF_LINK2, setifflags),
1190 DEF_CMD("monitor", IFF_MONITOR, setifflags),
1191 DEF_CMD("-monitor", -IFF_MONITOR, setifflags),
1192 DEF_CMD("staticarp", IFF_STATICARP, setifflags),
1193 DEF_CMD("-staticarp", -IFF_STATICARP, setifflags),
1194 DEF_CMD("rxcsum6", IFCAP_RXCSUM_IPV6, setifcap),
1195 DEF_CMD("-rxcsum6", -IFCAP_RXCSUM_IPV6, setifcap),
1196 DEF_CMD("txcsum6", IFCAP_TXCSUM_IPV6, setifcap),
1197 DEF_CMD("-txcsum6", -IFCAP_TXCSUM_IPV6, setifcap),
1198 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
1199 DEF_CMD("-rxcsum", -IFCAP_RXCSUM, setifcap),
1200 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
1201 DEF_CMD("-txcsum", -IFCAP_TXCSUM, setifcap),
1202 DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
1203 DEF_CMD("-netcons", -IFCAP_NETCONS, setifcap),
1204 DEF_CMD("polling", IFCAP_POLLING, setifcap),
1205 DEF_CMD("-polling", -IFCAP_POLLING, setifcap),
1206 DEF_CMD("tso6", IFCAP_TSO6, setifcap),
1207 DEF_CMD("-tso6", -IFCAP_TSO6, setifcap),
1208 DEF_CMD("tso4", IFCAP_TSO4, setifcap),
1209 DEF_CMD("-tso4", -IFCAP_TSO4, setifcap),
1210 DEF_CMD("tso", IFCAP_TSO, setifcap),
1211 DEF_CMD("-tso", -IFCAP_TSO, setifcap),
1212 DEF_CMD("toe", IFCAP_TOE, setifcap),
1213 DEF_CMD("-toe", -IFCAP_TOE, setifcap),
1214 DEF_CMD("lro", IFCAP_LRO, setifcap),
1215 DEF_CMD("-lro", -IFCAP_LRO, setifcap),
1216 DEF_CMD("wol", IFCAP_WOL, setifcap),
1217 DEF_CMD("-wol", -IFCAP_WOL, setifcap),
1218 DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
1219 DEF_CMD("-wol_ucast", -IFCAP_WOL_UCAST, setifcap),
1220 DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
1221 DEF_CMD("-wol_mcast", -IFCAP_WOL_MCAST, setifcap),
1222 DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
1223 DEF_CMD("-wol_magic", -IFCAP_WOL_MAGIC, setifcap),
1224 DEF_CMD("normal", -IFF_LINK0, setifflags),
1225 DEF_CMD("compress", IFF_LINK0, setifflags),
1226 DEF_CMD("noicmp", IFF_LINK1, setifflags),
1227 DEF_CMD_ARG("mtu", setifmtu),
1228 DEF_CMD_ARG("name", setifname),
1231 static __constructor void
1236 for (i = 0; i < nitems(basic_cmds); i++)
1237 cmd_register(&basic_cmds[i]);