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>
78 * Since "struct ifreq" is composed of various union members, callers
79 * should pay special attention to interprete the value.
80 * (.e.g. little/big endian difference in the structure.)
96 int printkeys = 0; /* Print keying material for interfaces. */
98 static int ifconfig(int argc, char *const *argv, int iscreate,
99 const struct afswtch *afp);
100 static void status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
101 struct ifaddrs *ifa);
102 static void tunnel_status(int s);
103 static void usage(void);
105 static struct afswtch *af_getbyname(const char *name);
106 static struct afswtch *af_getbyfamily(int af);
107 static void af_other_status(int);
109 static struct option *opts = NULL;
112 opt_register(struct option *p)
124 /* XXX not right but close enough for now */
126 for (p = opts; p != NULL; p = p->next) {
127 strlcat(options, p->opt_usage, sizeof(options));
128 strlcat(options, " ", sizeof(options));
132 "usage: ifconfig %sinterface address_family [address [dest_address]]\n"
134 " ifconfig interface create\n"
135 " ifconfig -a %s[-d] [-m] [-u] [-v] [address_family]\n"
136 " ifconfig -l [-d] [-u] [address_family]\n"
137 " ifconfig %s[-d] [-m] [-u] [-v]\n",
138 options, options, options);
143 main(int argc, char *argv[])
145 int c, all, namesonly, downonly, uponly;
146 const struct afswtch *afp = NULL;
148 struct ifaddrs *ifap, *ifa;
150 const struct sockaddr_dl *sdl;
151 char options[1024], *cp, *namecp = NULL;
156 all = downonly = uponly = namesonly = noload = verbose = 0;
158 /* Parse leading line options */
159 strlcpy(options, "adklmnuv", sizeof(options));
160 for (p = opts; p != NULL; p = p->next)
161 strlcat(options, p->opt, sizeof(options));
162 while ((c = getopt(argc, argv, options)) != -1) {
164 case 'a': /* scan all interfaces */
167 case 'd': /* restrict scan to "down" interfaces */
173 case 'l': /* scan interface names only */
176 case 'm': /* show media choices in status */
179 case 'n': /* suppress module loading */
182 case 'u': /* restrict scan to "up" interfaces */
189 for (p = opts; p != NULL; p = p->next)
190 if (p->opt[0] == c) {
202 /* -l cannot be used with -a or -m */
203 if (namesonly && (all || supmedia))
207 if (uponly && downonly)
210 /* no arguments is equivalent to '-a' */
211 if (!namesonly && argc < 1)
214 /* -a and -l allow an address family arg to limit the output */
215 if (all || namesonly) {
222 afp = af_getbyname(*argv);
225 if (afp->af_name != NULL)
227 /* leave with afp non-zero */
230 /* not listing, need an argument */
237 /* check and maybe load support for this interface */
240 ifindex = if_nametoindex(ifname);
243 * NOTE: We must special-case the `create' command
244 * right here as we would otherwise fail when trying
245 * to find the interface.
247 if (argc > 0 && (strcmp(argv[0], "create") == 0 ||
248 strcmp(argv[0], "plumb") == 0)) {
249 iflen = strlcpy(name, ifname, sizeof(name));
250 if (iflen >= sizeof(name))
251 errx(1, "%s: cloning name too long",
253 ifconfig(argc, argv, 1, NULL);
257 * NOTE: We have to special-case the `-vnet' command
258 * right here as we would otherwise fail when trying
259 * to find the interface as it lives in another vnet.
261 if (argc > 0 && (strcmp(argv[0], "-vnet") == 0)) {
262 iflen = strlcpy(name, ifname, sizeof(name));
263 if (iflen >= sizeof(name))
264 errx(1, "%s: interface name too long",
266 ifconfig(argc, argv, 0, NULL);
269 errx(1, "interface %s does not exist", ifname);
273 /* Check for address family */
275 afp = af_getbyname(*argv);
280 if (getifaddrs(&ifap) != 0)
281 err(EXIT_FAILURE, "getifaddrs");
284 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
285 memset(&paifr, 0, sizeof(paifr));
286 strncpy(paifr.ifr_name, ifa->ifa_name, sizeof(paifr.ifr_name));
287 if (sizeof(paifr.ifr_addr) >= ifa->ifa_addr->sa_len) {
288 memcpy(&paifr.ifr_addr, ifa->ifa_addr,
289 ifa->ifa_addr->sa_len);
292 if (ifname != NULL && strcmp(ifname, ifa->ifa_name) != 0)
294 if (ifa->ifa_addr->sa_family == AF_LINK)
295 sdl = (const struct sockaddr_dl *) ifa->ifa_addr;
298 if (cp != NULL && strcmp(cp, ifa->ifa_name) == 0 && !namesonly)
300 iflen = strlcpy(name, ifa->ifa_name, sizeof(name));
301 if (iflen >= sizeof(name)) {
302 warnx("%s: interface name too long, skipping",
308 if (downonly && (ifa->ifa_flags & IFF_UP) != 0)
310 if (uponly && (ifa->ifa_flags & IFF_UP) == 0)
313 * Are we just listing the interfaces?
319 /* special case for "ether" address family */
320 if (!strcmp(afp->af_name, "ether")) {
322 (sdl->sdl_type != IFT_ETHER &&
323 sdl->sdl_type != IFT_L2VLAN &&
324 sdl->sdl_type != IFT_BRIDGE) ||
325 sdl->sdl_alen != ETHER_ADDR_LEN)
328 if (ifa->ifa_addr->sa_family != afp->af_af)
342 ifconfig(argc, argv, 0, afp);
344 status(afp, sdl, ifa);
353 static struct afswtch *afs = NULL;
356 af_register(struct afswtch *p)
362 static struct afswtch *
363 af_getbyname(const char *name)
367 for (afp = afs; afp != NULL; afp = afp->af_next)
368 if (strcmp(afp->af_name, name) == 0)
373 static struct afswtch *
374 af_getbyfamily(int af)
378 for (afp = afs; afp != NULL; afp = afp->af_next)
379 if (afp->af_af == af)
385 af_other_status(int s)
388 uint8_t afmask[howmany(AF_MAX, NBBY)];
390 memset(afmask, 0, sizeof(afmask));
391 for (afp = afs; afp != NULL; afp = afp->af_next) {
392 if (afp->af_other_status == NULL)
394 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
396 afp->af_other_status(s);
397 setbit(afmask, afp->af_af);
402 af_all_tunnel_status(int s)
405 uint8_t afmask[howmany(AF_MAX, NBBY)];
407 memset(afmask, 0, sizeof(afmask));
408 for (afp = afs; afp != NULL; afp = afp->af_next) {
409 if (afp->af_status_tunnel == NULL)
411 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
413 afp->af_status_tunnel(s);
414 setbit(afmask, afp->af_af);
418 static struct cmd *cmds = NULL;
421 cmd_register(struct cmd *p)
427 static const struct cmd *
428 cmd_lookup(const char *name, int iscreate)
430 #define N(a) (sizeof(a)/sizeof(a[0]))
433 for (p = cmds; p != NULL; p = p->c_next)
434 if (strcmp(name, p->c_name) == 0) {
448 callback_func *cb_func;
450 struct callback *cb_next;
452 static struct callback *callbacks = NULL;
455 callback_register(callback_func *func, void *arg)
459 cb = malloc(sizeof(struct callback));
461 errx(1, "unable to allocate memory for callback");
464 cb->cb_next = callbacks;
468 /* specially-handled commands */
469 static void setifaddr(const char *, int, int, const struct afswtch *);
470 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
472 static void setifdstaddr(const char *, int, int, const struct afswtch *);
473 static const struct cmd setifdstaddr_cmd =
474 DEF_CMD("ifdstaddr", 0, setifdstaddr);
477 ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
479 const struct afswtch *afp, *nafp;
484 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
485 afp = uafp != NULL ? uafp : af_getbyname("inet");
487 ifr.ifr_addr.sa_family =
488 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
489 AF_LOCAL : afp->af_af;
491 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
492 (uafp != NULL || errno != EPROTONOSUPPORT ||
493 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
494 err(1, "socket(family %u,SOCK_DGRAM", ifr.ifr_addr.sa_family);
497 p = cmd_lookup(*argv, iscreate);
498 if (iscreate && p == NULL) {
500 * Push the clone create callback so the new
501 * device is created and can be used for any
502 * remaining arguments.
506 errx(1, "internal error, no callback");
507 callbacks = cb->cb_next;
508 cb->cb_func(s, cb->cb_arg);
511 * Handle any address family spec that
512 * immediately follows and potentially
513 * recreate the socket.
515 nafp = af_getbyname(*argv);
525 * Look for a normal parameter.
531 * Not a recognized command, choose between setting
532 * the interface address and the dst address.
534 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
536 if (p->c_u.c_func || p->c_u.c_func2) {
537 if (p->c_parameter == NEXTARG) {
539 errx(1, "'%s' requires argument",
541 p->c_u.c_func(argv[1], 0, s, afp);
543 } else if (p->c_parameter == OPTARG) {
544 p->c_u.c_func(argv[1], 0, s, afp);
547 } else if (p->c_parameter == NEXTARG2) {
549 errx(1, "'%s' requires 2 arguments",
551 p->c_u.c_func2(argv[1], argv[2], s, afp);
552 argc -= 2, argv += 2;
554 p->c_u.c_func(*argv, p->c_parameter, s, afp);
560 * Do any post argument processing required by the address family.
562 if (afp->af_postproc != NULL)
563 afp->af_postproc(s, afp);
565 * Do deferred callbacks registered while processing
566 * command-line arguments.
568 for (cb = callbacks; cb != NULL; cb = cb->cb_next)
569 cb->cb_func(s, cb->cb_arg);
571 * Do deferred operations.
574 if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
575 warnx("interface %s cannot change %s addresses!",
582 strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
583 ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
585 if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
586 /* means no previous address for interface */
588 Perror("ioctl (SIOCDIFADDR)");
592 if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
593 warnx("interface %s cannot change %s addresses!",
598 if (newaddr && (setaddr || setmask)) {
599 strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
600 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
601 Perror("ioctl (SIOCAIFADDR)");
610 setifaddr(const char *addr, int param, int s, const struct afswtch *afp)
612 if (afp->af_getaddr == NULL)
615 * Delay the ioctl to set the interface addr until flags are all set.
616 * The address interpretation may depend on the flags,
617 * and the flags may change when the address is set.
620 if (doalias == 0 && afp->af_af != AF_LINK)
622 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
626 settunnel(const char *src, const char *dst, int s, const struct afswtch *afp)
628 struct addrinfo *srcres, *dstres;
631 if (afp->af_settunnel == NULL) {
632 warn("address family %s does not support tunnel setup",
637 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
638 errx(1, "error in parsing address string: %s",
639 gai_strerror(ecode));
641 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
642 errx(1, "error in parsing address string: %s",
643 gai_strerror(ecode));
645 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
647 "source and destination address families do not match");
649 afp->af_settunnel(s, srcres, dstres);
651 freeaddrinfo(srcres);
652 freeaddrinfo(dstres);
657 deletetunnel(const char *vname, int param, int s, const struct afswtch *afp)
660 if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
661 err(1, "SIOCDIFPHYADDR");
665 setifvnet(const char *jname, int dummy __unused, int s,
666 const struct afswtch *afp)
670 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
671 my_ifr.ifr_jid = jail_getid(jname);
672 if (my_ifr.ifr_jid < 0)
673 errx(1, "%s", jail_errmsg);
674 if (ioctl(s, SIOCSIFVNET, &my_ifr) < 0)
675 err(1, "SIOCSIFVNET");
679 setifrvnet(const char *jname, int dummy __unused, int s,
680 const struct afswtch *afp)
684 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
685 my_ifr.ifr_jid = jail_getid(jname);
686 if (my_ifr.ifr_jid < 0)
687 errx(1, "%s", jail_errmsg);
688 if (ioctl(s, SIOCSIFRVNET, &my_ifr) < 0)
689 err(1, "SIOCSIFRVNET(%d, %s)", my_ifr.ifr_jid, my_ifr.ifr_name);
693 setifnetmask(const char *addr, int dummy __unused, int s,
694 const struct afswtch *afp)
696 if (afp->af_getaddr != NULL) {
698 afp->af_getaddr(addr, MASK);
703 setifbroadaddr(const char *addr, int dummy __unused, int s,
704 const struct afswtch *afp)
706 if (afp->af_getaddr != NULL)
707 afp->af_getaddr(addr, DSTADDR);
711 setifipdst(const char *addr, int dummy __unused, int s,
712 const struct afswtch *afp)
714 const struct afswtch *inet;
716 inet = af_getbyname("inet");
719 inet->af_getaddr(addr, DSTADDR);
725 notealias(const char *addr, int param, int s, const struct afswtch *afp)
727 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
728 if (setaddr && doalias == 0 && param < 0)
729 if (afp->af_addreq != NULL && afp->af_ridreq != NULL)
730 bcopy((caddr_t)rqtosa(af_addreq),
731 (caddr_t)rqtosa(af_ridreq),
732 rqtosa(af_addreq)->sa_len);
744 setifdstaddr(const char *addr, int param __unused, int s,
745 const struct afswtch *afp)
747 if (afp->af_getaddr != NULL)
748 afp->af_getaddr(addr, DSTADDR);
752 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion
753 * of the ifreq structure, which may confuse other parts of ifconfig.
754 * Make a private copy so we can avoid that.
757 setifflags(const char *vname, int value, int s, const struct afswtch *afp)
762 memset(&my_ifr, 0, sizeof(my_ifr));
763 (void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));
765 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
766 Perror("ioctl (SIOCGIFFLAGS)");
769 flags = (my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16);
776 my_ifr.ifr_flags = flags & 0xffff;
777 my_ifr.ifr_flagshigh = flags >> 16;
778 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
783 setifcap(const char *vname, int value, int s, const struct afswtch *afp)
787 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) {
788 Perror("ioctl (SIOCGIFCAP)");
791 flags = ifr.ifr_curcap;
797 flags &= ifr.ifr_reqcap;
798 ifr.ifr_reqcap = flags;
799 if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0)
804 setifmetric(const char *val, int dummy __unused, int s,
805 const struct afswtch *afp)
807 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
808 ifr.ifr_metric = atoi(val);
809 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
810 warn("ioctl (set metric)");
814 setifmtu(const char *val, int dummy __unused, int s,
815 const struct afswtch *afp)
817 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
818 ifr.ifr_mtu = atoi(val);
819 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
820 warn("ioctl (set mtu)");
824 setifname(const char *val, int dummy __unused, int s,
825 const struct afswtch *afp)
829 newname = strdup(val);
830 if (newname == NULL) {
831 warn("no memory to set ifname");
834 ifr.ifr_data = newname;
835 if (ioctl(s, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
836 warn("ioctl (set name)");
840 strlcpy(name, newname, sizeof(name));
846 setifdescr(const char *val, int dummy __unused, int s,
847 const struct afswtch *afp)
851 ifr.ifr_buffer.length = strlen(val) + 1;
852 if (ifr.ifr_buffer.length == 1) {
853 ifr.ifr_buffer.buffer = newdescr = NULL;
854 ifr.ifr_buffer.length = 0;
856 newdescr = strdup(val);
857 ifr.ifr_buffer.buffer = newdescr;
858 if (newdescr == NULL) {
859 warn("no memory to set ifdescr");
864 if (ioctl(s, SIOCSIFDESCR, (caddr_t)&ifr) < 0)
865 warn("ioctl (set descr)");
872 unsetifdescr(const char *val, int value, int s, const struct afswtch *afp)
875 setifdescr("", 0, s, 0);
879 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \
880 "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
881 "\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP"
884 "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
885 "\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \
886 "\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE"
889 * Print the status of the interface. If an address family was
890 * specified, show only it; otherwise, show them all.
893 status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
902 ifr.ifr_addr.sa_family = AF_LOCAL;
905 ifr.ifr_addr.sa_family =
906 afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af;
908 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
910 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
912 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
914 printf("%s: ", name);
915 printb("flags", ifa->ifa_flags, IFFBITS);
916 if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1)
917 printf(" metric %d", ifr.ifr_metric);
918 if (ioctl(s, SIOCGIFMTU, &ifr) != -1)
919 printf(" mtu %d", ifr.ifr_mtu);
923 if ((descr = reallocf(descr, descrlen)) != NULL) {
924 ifr.ifr_buffer.buffer = descr;
925 ifr.ifr_buffer.length = descrlen;
926 if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) {
927 if (ifr.ifr_buffer.buffer == descr) {
928 if (strlen(descr) > 0)
929 printf("\tdescription: %s\n",
931 } else if (ifr.ifr_buffer.length > descrlen) {
932 descrlen = ifr.ifr_buffer.length;
937 warn("unable to allocate memory for interface"
942 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
943 if (ifr.ifr_curcap != 0) {
944 printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
947 if (supmedia && ifr.ifr_reqcap != 0) {
948 printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS);
955 for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
956 if (ift->ifa_addr == NULL)
958 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
961 const struct afswtch *p;
962 p = af_getbyfamily(ift->ifa_addr->sa_family);
963 if (p != NULL && p->af_status != NULL)
964 p->af_status(s, ift);
965 } else if (afp->af_af == ift->ifa_addr->sa_family)
966 afp->af_status(s, ift);
969 if (allfamilies || afp->af_af == AF_LINK) {
970 const struct afswtch *lafp;
973 * Hack; the link level address is received separately
974 * from the routing information so any address is not
975 * handled above. Cobble together an entry and invoke
976 * the status method specially.
978 lafp = af_getbyname("lladdr");
980 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
981 lafp->af_status(s, &info);
987 else if (afp->af_other_status != NULL)
988 afp->af_other_status(s);
990 strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
991 if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
992 printf("%s", ifs.ascii);
1001 af_all_tunnel_status(s);
1005 Perror(const char *cmd)
1010 errx(1, "%s: no such interface", cmd);
1014 errx(1, "%s: permission denied", cmd);
1023 * Print a value a la the %b format of the kernel's printf
1026 printb(const char *s, unsigned v, const char *bits)
1031 if (bits && *bits == 8)
1032 printf("%s=%o", s, v);
1034 printf("%s=%x", s, v);
1038 while ((i = *bits++) != '\0') {
1039 if (v & (1 << (i-1))) {
1043 for (; (c = *bits) > 32; bits++)
1046 for (; *bits > 32; bits++)
1054 ifmaybeload(const char *name)
1056 #define MOD_PREFIX_LEN 3 /* "if_" */
1057 struct module_stat mstat;
1059 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
1062 /* loading suppressed by the user */
1066 /* trim the interface number off the end */
1067 strlcpy(ifname, name, sizeof(ifname));
1068 for (dp = ifname; *dp != 0; dp++)
1074 /* turn interface and unit into module name */
1075 strcpy(ifkind, "if_");
1076 strlcpy(ifkind + MOD_PREFIX_LEN, ifname,
1077 sizeof(ifkind) - MOD_PREFIX_LEN);
1079 /* scan files in kernel */
1080 mstat.version = sizeof(struct module_stat);
1081 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
1082 /* scan modules in file */
1083 for (modid = kldfirstmod(fileid); modid > 0;
1084 modid = modfnext(modid)) {
1085 if (modstat(modid, &mstat) < 0)
1087 /* strip bus name if present */
1088 if ((cp = strchr(mstat.name, '/')) != NULL) {
1093 /* already loaded? */
1094 if (strncmp(ifname, cp, strlen(ifname) + 1) == 0 ||
1095 strncmp(ifkind, cp, strlen(ifkind) + 1) == 0)
1100 /* not present, we should try to load it */
1104 static struct cmd basic_cmds[] = {
1105 DEF_CMD("up", IFF_UP, setifflags),
1106 DEF_CMD("down", -IFF_UP, setifflags),
1107 DEF_CMD("arp", -IFF_NOARP, setifflags),
1108 DEF_CMD("-arp", IFF_NOARP, setifflags),
1109 DEF_CMD("debug", IFF_DEBUG, setifflags),
1110 DEF_CMD("-debug", -IFF_DEBUG, setifflags),
1111 DEF_CMD_ARG("description", setifdescr),
1112 DEF_CMD_ARG("descr", setifdescr),
1113 DEF_CMD("-description", 0, unsetifdescr),
1114 DEF_CMD("-descr", 0, unsetifdescr),
1115 DEF_CMD("promisc", IFF_PPROMISC, setifflags),
1116 DEF_CMD("-promisc", -IFF_PPROMISC, setifflags),
1117 DEF_CMD("add", IFF_UP, notealias),
1118 DEF_CMD("alias", IFF_UP, notealias),
1119 DEF_CMD("-alias", -IFF_UP, notealias),
1120 DEF_CMD("delete", -IFF_UP, notealias),
1121 DEF_CMD("remove", -IFF_UP, notealias),
1123 #define EN_SWABIPS 0x1000
1124 DEF_CMD("swabips", EN_SWABIPS, setifflags),
1125 DEF_CMD("-swabips", -EN_SWABIPS, setifflags),
1127 DEF_CMD_ARG("netmask", setifnetmask),
1128 DEF_CMD_ARG("metric", setifmetric),
1129 DEF_CMD_ARG("broadcast", setifbroadaddr),
1130 DEF_CMD_ARG("ipdst", setifipdst),
1131 DEF_CMD_ARG2("tunnel", settunnel),
1132 DEF_CMD("-tunnel", 0, deletetunnel),
1133 DEF_CMD("deletetunnel", 0, deletetunnel),
1134 DEF_CMD_ARG("vnet", setifvnet),
1135 DEF_CMD_ARG("-vnet", setifrvnet),
1136 DEF_CMD("link0", IFF_LINK0, setifflags),
1137 DEF_CMD("-link0", -IFF_LINK0, setifflags),
1138 DEF_CMD("link1", IFF_LINK1, setifflags),
1139 DEF_CMD("-link1", -IFF_LINK1, setifflags),
1140 DEF_CMD("link2", IFF_LINK2, setifflags),
1141 DEF_CMD("-link2", -IFF_LINK2, setifflags),
1142 DEF_CMD("monitor", IFF_MONITOR, setifflags),
1143 DEF_CMD("-monitor", -IFF_MONITOR, setifflags),
1144 DEF_CMD("staticarp", IFF_STATICARP, setifflags),
1145 DEF_CMD("-staticarp", -IFF_STATICARP, setifflags),
1146 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
1147 DEF_CMD("-rxcsum", -IFCAP_RXCSUM, setifcap),
1148 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
1149 DEF_CMD("-txcsum", -IFCAP_TXCSUM, setifcap),
1150 DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
1151 DEF_CMD("-netcons", -IFCAP_NETCONS, setifcap),
1152 DEF_CMD("polling", IFCAP_POLLING, setifcap),
1153 DEF_CMD("-polling", -IFCAP_POLLING, setifcap),
1154 DEF_CMD("tso", IFCAP_TSO, setifcap),
1155 DEF_CMD("-tso", -IFCAP_TSO, setifcap),
1156 DEF_CMD("lro", IFCAP_LRO, setifcap),
1157 DEF_CMD("-lro", -IFCAP_LRO, setifcap),
1158 DEF_CMD("wol", IFCAP_WOL, setifcap),
1159 DEF_CMD("-wol", -IFCAP_WOL, setifcap),
1160 DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
1161 DEF_CMD("-wol_ucast", -IFCAP_WOL_UCAST, setifcap),
1162 DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
1163 DEF_CMD("-wol_mcast", -IFCAP_WOL_MCAST, setifcap),
1164 DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
1165 DEF_CMD("-wol_magic", -IFCAP_WOL_MAGIC, setifcap),
1166 DEF_CMD("normal", -IFF_LINK0, setifflags),
1167 DEF_CMD("compress", IFF_LINK0, setifflags),
1168 DEF_CMD("noicmp", IFF_LINK1, setifflags),
1169 DEF_CMD_ARG("mtu", setifmtu),
1170 DEF_CMD_ARG("name", setifname),
1173 static __constructor void
1176 #define N(a) (sizeof(a) / sizeof(a[0]))
1179 for (i = 0; i < N(basic_cmds); i++)
1180 cmd_register(&basic_cmds[i]);