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/socket.h>
48 #include <sys/module.h>
49 #include <sys/linker.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 interprete 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)
438 #define N(a) (sizeof(a)/sizeof(a[0]))
441 for (p = cmds; p != NULL; p = p->c_next)
442 if (strcmp(name, p->c_name) == 0) {
456 callback_func *cb_func;
458 struct callback *cb_next;
460 static struct callback *callbacks = NULL;
463 callback_register(callback_func *func, void *arg)
467 cb = malloc(sizeof(struct callback));
469 errx(1, "unable to allocate memory for callback");
472 cb->cb_next = callbacks;
476 /* specially-handled commands */
477 static void setifaddr(const char *, int, int, const struct afswtch *);
478 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
480 static void setifdstaddr(const char *, int, int, const struct afswtch *);
481 static const struct cmd setifdstaddr_cmd =
482 DEF_CMD("ifdstaddr", 0, setifdstaddr);
485 ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
487 const struct afswtch *afp, *nafp;
492 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
497 * This is the historical "accident" allowing users to configure IPv4
498 * addresses without the "inet" keyword which while a nice feature has
499 * proven to complicate other things. We cannot remove this but only
500 * make sure we will never have a similar implicit default for IPv6 or
501 * any other address familiy. We need a fallback though for
502 * ifconfig IF up/down etc. to work without INET support as people
503 * never used ifconfig IF link up/down, etc. either.
507 if (afp == NULL && feature_present("inet"))
508 afp = af_getbyname("inet");
512 afp = af_getbyname("link");
514 warnx("Please specify an address_family.");
518 ifr.ifr_addr.sa_family =
519 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
520 AF_LOCAL : afp->af_af;
522 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
523 (uafp != NULL || errno != EAFNOSUPPORT ||
524 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
525 err(1, "socket(family %u,SOCK_DGRAM", ifr.ifr_addr.sa_family);
528 p = cmd_lookup(*argv, iscreate);
529 if (iscreate && p == NULL) {
531 * Push the clone create callback so the new
532 * device is created and can be used for any
533 * remaining arguments.
537 errx(1, "internal error, no callback");
538 callbacks = cb->cb_next;
539 cb->cb_func(s, cb->cb_arg);
542 * Handle any address family spec that
543 * immediately follows and potentially
544 * recreate the socket.
546 nafp = af_getbyname(*argv);
556 * Look for a normal parameter.
562 * Not a recognized command, choose between setting
563 * the interface address and the dst address.
565 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
567 if (p->c_u.c_func || p->c_u.c_func2) {
568 if (p->c_parameter == NEXTARG) {
570 errx(1, "'%s' requires argument",
572 p->c_u.c_func(argv[1], 0, s, afp);
574 } else if (p->c_parameter == OPTARG) {
575 p->c_u.c_func(argv[1], 0, s, afp);
578 } else if (p->c_parameter == NEXTARG2) {
580 errx(1, "'%s' requires 2 arguments",
582 p->c_u.c_func2(argv[1], argv[2], s, afp);
583 argc -= 2, argv += 2;
585 p->c_u.c_func(*argv, p->c_parameter, s, afp);
591 * Do any post argument processing required by the address family.
593 if (afp->af_postproc != NULL)
594 afp->af_postproc(s, afp);
596 * Do deferred callbacks registered while processing
597 * command-line arguments.
599 for (cb = callbacks; cb != NULL; cb = cb->cb_next)
600 cb->cb_func(s, cb->cb_arg);
602 * Do deferred operations.
605 if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
606 warnx("interface %s cannot change %s addresses!",
613 strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
614 ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
616 if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
617 /* means no previous address for interface */
619 Perror("ioctl (SIOCDIFADDR)");
623 if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
624 warnx("interface %s cannot change %s addresses!",
629 if (newaddr && (setaddr || setmask)) {
630 strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
631 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
632 Perror("ioctl (SIOCAIFADDR)");
641 setifaddr(const char *addr, int param, int s, const struct afswtch *afp)
643 if (afp->af_getaddr == NULL)
646 * Delay the ioctl to set the interface addr until flags are all set.
647 * The address interpretation may depend on the flags,
648 * and the flags may change when the address is set.
651 if (doalias == 0 && afp->af_af != AF_LINK)
653 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
657 settunnel(const char *src, const char *dst, int s, const struct afswtch *afp)
659 struct addrinfo *srcres, *dstres;
662 if (afp->af_settunnel == NULL) {
663 warn("address family %s does not support tunnel setup",
668 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
669 errx(1, "error in parsing address string: %s",
670 gai_strerror(ecode));
672 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
673 errx(1, "error in parsing address string: %s",
674 gai_strerror(ecode));
676 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
678 "source and destination address families do not match");
680 afp->af_settunnel(s, srcres, dstres);
682 freeaddrinfo(srcres);
683 freeaddrinfo(dstres);
688 deletetunnel(const char *vname, int param, int s, const struct afswtch *afp)
691 if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
692 err(1, "SIOCDIFPHYADDR");
697 setifvnet(const char *jname, int dummy __unused, int s,
698 const struct afswtch *afp)
702 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
703 my_ifr.ifr_jid = jail_getid(jname);
704 if (my_ifr.ifr_jid < 0)
705 errx(1, "%s", jail_errmsg);
706 if (ioctl(s, SIOCSIFVNET, &my_ifr) < 0)
707 err(1, "SIOCSIFVNET");
711 setifrvnet(const char *jname, int dummy __unused, int s,
712 const struct afswtch *afp)
716 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
717 my_ifr.ifr_jid = jail_getid(jname);
718 if (my_ifr.ifr_jid < 0)
719 errx(1, "%s", jail_errmsg);
720 if (ioctl(s, SIOCSIFRVNET, &my_ifr) < 0)
721 err(1, "SIOCSIFRVNET(%d, %s)", my_ifr.ifr_jid, my_ifr.ifr_name);
726 setifnetmask(const char *addr, int dummy __unused, int s,
727 const struct afswtch *afp)
729 if (afp->af_getaddr != NULL) {
731 afp->af_getaddr(addr, MASK);
736 setifbroadaddr(const char *addr, int dummy __unused, int s,
737 const struct afswtch *afp)
739 if (afp->af_getaddr != NULL)
740 afp->af_getaddr(addr, DSTADDR);
744 notealias(const char *addr, int param, int s, const struct afswtch *afp)
746 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
747 if (setaddr && doalias == 0 && param < 0)
748 if (afp->af_addreq != NULL && afp->af_ridreq != NULL)
749 bcopy((caddr_t)rqtosa(af_addreq),
750 (caddr_t)rqtosa(af_ridreq),
751 rqtosa(af_addreq)->sa_len);
763 setifdstaddr(const char *addr, int param __unused, int s,
764 const struct afswtch *afp)
766 if (afp->af_getaddr != NULL)
767 afp->af_getaddr(addr, DSTADDR);
771 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion
772 * of the ifreq structure, which may confuse other parts of ifconfig.
773 * Make a private copy so we can avoid that.
776 setifflags(const char *vname, int value, int s, const struct afswtch *afp)
781 memset(&my_ifr, 0, sizeof(my_ifr));
782 (void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));
784 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
785 Perror("ioctl (SIOCGIFFLAGS)");
788 flags = (my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16);
795 my_ifr.ifr_flags = flags & 0xffff;
796 my_ifr.ifr_flagshigh = flags >> 16;
797 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
802 setifcap(const char *vname, int value, int s, const struct afswtch *afp)
806 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) {
807 Perror("ioctl (SIOCGIFCAP)");
810 flags = ifr.ifr_curcap;
816 flags &= ifr.ifr_reqcap;
817 ifr.ifr_reqcap = flags;
818 if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0)
823 setifmetric(const char *val, int dummy __unused, int s,
824 const struct afswtch *afp)
826 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
827 ifr.ifr_metric = atoi(val);
828 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
829 warn("ioctl (set metric)");
833 setifmtu(const char *val, int dummy __unused, int s,
834 const struct afswtch *afp)
836 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
837 ifr.ifr_mtu = atoi(val);
838 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
839 warn("ioctl (set mtu)");
843 setifname(const char *val, int dummy __unused, int s,
844 const struct afswtch *afp)
848 newname = strdup(val);
849 if (newname == NULL) {
850 warn("no memory to set ifname");
853 ifr.ifr_data = newname;
854 if (ioctl(s, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
855 warn("ioctl (set name)");
859 strlcpy(name, newname, sizeof(name));
865 setifdescr(const char *val, int dummy __unused, int s,
866 const struct afswtch *afp)
870 ifr.ifr_buffer.length = strlen(val) + 1;
871 if (ifr.ifr_buffer.length == 1) {
872 ifr.ifr_buffer.buffer = newdescr = NULL;
873 ifr.ifr_buffer.length = 0;
875 newdescr = strdup(val);
876 ifr.ifr_buffer.buffer = newdescr;
877 if (newdescr == NULL) {
878 warn("no memory to set ifdescr");
883 if (ioctl(s, SIOCSIFDESCR, (caddr_t)&ifr) < 0)
884 warn("ioctl (set descr)");
891 unsetifdescr(const char *val, int value, int s, const struct afswtch *afp)
894 setifdescr("", 0, s, 0);
898 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\7RUNNING" \
899 "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
900 "\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP"
903 "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
904 "\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \
905 "\17TOE4\20TOE6\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE\25NETMAP" \
906 "\26RXCSUM_IPV6\27TXCSUM_IPV6"
909 * Print the status of the interface. If an address family was
910 * specified, show only it; otherwise, show them all.
913 status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
922 ifr.ifr_addr.sa_family = AF_LOCAL;
925 ifr.ifr_addr.sa_family =
926 afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af;
928 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
930 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
932 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
934 printf("%s: ", name);
935 printb("flags", ifa->ifa_flags, IFFBITS);
936 if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1)
937 printf(" metric %d", ifr.ifr_metric);
938 if (ioctl(s, SIOCGIFMTU, &ifr) != -1)
939 printf(" mtu %d", ifr.ifr_mtu);
943 if ((descr = reallocf(descr, descrlen)) != NULL) {
944 ifr.ifr_buffer.buffer = descr;
945 ifr.ifr_buffer.length = descrlen;
946 if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) {
947 if (ifr.ifr_buffer.buffer == descr) {
948 if (strlen(descr) > 0)
949 printf("\tdescription: %s\n",
951 } else if (ifr.ifr_buffer.length > descrlen) {
952 descrlen = ifr.ifr_buffer.length;
957 warn("unable to allocate memory for interface"
962 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
963 if (ifr.ifr_curcap != 0) {
964 printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
967 if (supmedia && ifr.ifr_reqcap != 0) {
968 printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS);
975 for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
976 if (ift->ifa_addr == NULL)
978 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
981 const struct afswtch *p;
982 p = af_getbyfamily(ift->ifa_addr->sa_family);
983 if (p != NULL && p->af_status != NULL)
984 p->af_status(s, ift);
985 } else if (afp->af_af == ift->ifa_addr->sa_family)
986 afp->af_status(s, ift);
989 if (allfamilies || afp->af_af == AF_LINK) {
990 const struct afswtch *lafp;
993 * Hack; the link level address is received separately
994 * from the routing information so any address is not
995 * handled above. Cobble together an entry and invoke
996 * the status method specially.
998 lafp = af_getbyname("lladdr");
1000 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
1001 lafp->af_status(s, &info);
1007 else if (afp->af_other_status != NULL)
1008 afp->af_other_status(s);
1010 strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
1011 if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
1012 printf("%s", ifs.ascii);
1019 tunnel_status(int s)
1021 af_all_tunnel_status(s);
1025 Perror(const char *cmd)
1030 errx(1, "%s: no such interface", cmd);
1034 errx(1, "%s: permission denied", cmd);
1043 * Print a value a la the %b format of the kernel's printf
1046 printb(const char *s, unsigned v, const char *bits)
1051 if (bits && *bits == 8)
1052 printf("%s=%o", s, v);
1054 printf("%s=%x", s, v);
1058 while ((i = *bits++) != '\0') {
1059 if (v & (1 << (i-1))) {
1063 for (; (c = *bits) > 32; bits++)
1066 for (; *bits > 32; bits++)
1074 print_vhid(const struct ifaddrs *ifa, const char *s)
1076 struct if_data *ifd;
1078 if (ifa->ifa_data == NULL)
1081 ifd = ifa->ifa_data;
1082 if (ifd->ifi_vhid == 0)
1085 printf("vhid %d ", ifd->ifi_vhid);
1089 ifmaybeload(const char *name)
1091 #define MOD_PREFIX_LEN 3 /* "if_" */
1092 struct module_stat mstat;
1094 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
1097 /* loading suppressed by the user */
1101 /* trim the interface number off the end */
1102 strlcpy(ifname, name, sizeof(ifname));
1103 for (dp = ifname; *dp != 0; dp++)
1109 /* turn interface and unit into module name */
1110 strcpy(ifkind, "if_");
1111 strlcpy(ifkind + MOD_PREFIX_LEN, ifname,
1112 sizeof(ifkind) - MOD_PREFIX_LEN);
1114 /* scan files in kernel */
1115 mstat.version = sizeof(struct module_stat);
1116 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
1117 /* scan modules in file */
1118 for (modid = kldfirstmod(fileid); modid > 0;
1119 modid = modfnext(modid)) {
1120 if (modstat(modid, &mstat) < 0)
1122 /* strip bus name if present */
1123 if ((cp = strchr(mstat.name, '/')) != NULL) {
1128 /* already loaded? */
1129 if (strncmp(ifname, cp, strlen(ifname) + 1) == 0 ||
1130 strncmp(ifkind, cp, strlen(ifkind) + 1) == 0)
1135 /* not present, we should try to load it */
1139 static struct cmd basic_cmds[] = {
1140 DEF_CMD("up", IFF_UP, setifflags),
1141 DEF_CMD("down", -IFF_UP, setifflags),
1142 DEF_CMD("arp", -IFF_NOARP, setifflags),
1143 DEF_CMD("-arp", IFF_NOARP, setifflags),
1144 DEF_CMD("debug", IFF_DEBUG, setifflags),
1145 DEF_CMD("-debug", -IFF_DEBUG, setifflags),
1146 DEF_CMD_ARG("description", setifdescr),
1147 DEF_CMD_ARG("descr", setifdescr),
1148 DEF_CMD("-description", 0, unsetifdescr),
1149 DEF_CMD("-descr", 0, unsetifdescr),
1150 DEF_CMD("promisc", IFF_PPROMISC, setifflags),
1151 DEF_CMD("-promisc", -IFF_PPROMISC, setifflags),
1152 DEF_CMD("add", IFF_UP, notealias),
1153 DEF_CMD("alias", IFF_UP, notealias),
1154 DEF_CMD("-alias", -IFF_UP, notealias),
1155 DEF_CMD("delete", -IFF_UP, notealias),
1156 DEF_CMD("remove", -IFF_UP, notealias),
1158 #define EN_SWABIPS 0x1000
1159 DEF_CMD("swabips", EN_SWABIPS, setifflags),
1160 DEF_CMD("-swabips", -EN_SWABIPS, setifflags),
1162 DEF_CMD_ARG("netmask", setifnetmask),
1163 DEF_CMD_ARG("metric", setifmetric),
1164 DEF_CMD_ARG("broadcast", setifbroadaddr),
1165 DEF_CMD_ARG2("tunnel", settunnel),
1166 DEF_CMD("-tunnel", 0, deletetunnel),
1167 DEF_CMD("deletetunnel", 0, deletetunnel),
1169 DEF_CMD_ARG("vnet", setifvnet),
1170 DEF_CMD_ARG("-vnet", setifrvnet),
1172 DEF_CMD("link0", IFF_LINK0, setifflags),
1173 DEF_CMD("-link0", -IFF_LINK0, setifflags),
1174 DEF_CMD("link1", IFF_LINK1, setifflags),
1175 DEF_CMD("-link1", -IFF_LINK1, setifflags),
1176 DEF_CMD("link2", IFF_LINK2, setifflags),
1177 DEF_CMD("-link2", -IFF_LINK2, setifflags),
1178 DEF_CMD("monitor", IFF_MONITOR, setifflags),
1179 DEF_CMD("-monitor", -IFF_MONITOR, setifflags),
1180 DEF_CMD("staticarp", IFF_STATICARP, setifflags),
1181 DEF_CMD("-staticarp", -IFF_STATICARP, setifflags),
1182 DEF_CMD("rxcsum6", IFCAP_RXCSUM_IPV6, setifcap),
1183 DEF_CMD("-rxcsum6", -IFCAP_RXCSUM_IPV6, setifcap),
1184 DEF_CMD("txcsum6", IFCAP_TXCSUM_IPV6, setifcap),
1185 DEF_CMD("-txcsum6", -IFCAP_TXCSUM_IPV6, setifcap),
1186 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
1187 DEF_CMD("-rxcsum", -IFCAP_RXCSUM, setifcap),
1188 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
1189 DEF_CMD("-txcsum", -IFCAP_TXCSUM, setifcap),
1190 DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
1191 DEF_CMD("-netcons", -IFCAP_NETCONS, setifcap),
1192 DEF_CMD("polling", IFCAP_POLLING, setifcap),
1193 DEF_CMD("-polling", -IFCAP_POLLING, setifcap),
1194 DEF_CMD("tso6", IFCAP_TSO6, setifcap),
1195 DEF_CMD("-tso6", -IFCAP_TSO6, setifcap),
1196 DEF_CMD("tso4", IFCAP_TSO4, setifcap),
1197 DEF_CMD("-tso4", -IFCAP_TSO4, setifcap),
1198 DEF_CMD("tso", IFCAP_TSO, setifcap),
1199 DEF_CMD("-tso", -IFCAP_TSO, setifcap),
1200 DEF_CMD("toe", IFCAP_TOE, setifcap),
1201 DEF_CMD("-toe", -IFCAP_TOE, setifcap),
1202 DEF_CMD("lro", IFCAP_LRO, setifcap),
1203 DEF_CMD("-lro", -IFCAP_LRO, setifcap),
1204 DEF_CMD("wol", IFCAP_WOL, setifcap),
1205 DEF_CMD("-wol", -IFCAP_WOL, setifcap),
1206 DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
1207 DEF_CMD("-wol_ucast", -IFCAP_WOL_UCAST, setifcap),
1208 DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
1209 DEF_CMD("-wol_mcast", -IFCAP_WOL_MCAST, setifcap),
1210 DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
1211 DEF_CMD("-wol_magic", -IFCAP_WOL_MAGIC, setifcap),
1212 DEF_CMD("normal", -IFF_LINK0, setifflags),
1213 DEF_CMD("compress", IFF_LINK0, setifflags),
1214 DEF_CMD("noicmp", IFF_LINK1, setifflags),
1215 DEF_CMD_ARG("mtu", setifmtu),
1216 DEF_CMD_ARG("name", setifname),
1219 static __constructor void
1222 #define N(a) (sizeof(a) / sizeof(a[0]))
1225 for (i = 0; i < N(basic_cmds); i++)
1226 cmd_register(&basic_cmds[i]);