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;
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)
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)
314 * Are we just listing the interfaces?
324 ifconfig(argc, argv, 0, afp);
326 status(afp, sdl, ifa);
335 static struct afswtch *afs = NULL;
338 af_register(struct afswtch *p)
344 static struct afswtch *
345 af_getbyname(const char *name)
349 for (afp = afs; afp != NULL; afp = afp->af_next)
350 if (strcmp(afp->af_name, name) == 0)
355 static struct afswtch *
356 af_getbyfamily(int af)
360 for (afp = afs; afp != NULL; afp = afp->af_next)
361 if (afp->af_af == af)
367 af_other_status(int s)
370 uint8_t afmask[howmany(AF_MAX, NBBY)];
372 memset(afmask, 0, sizeof(afmask));
373 for (afp = afs; afp != NULL; afp = afp->af_next) {
374 if (afp->af_other_status == NULL)
376 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
378 afp->af_other_status(s);
379 setbit(afmask, afp->af_af);
384 af_all_tunnel_status(int s)
387 uint8_t afmask[howmany(AF_MAX, NBBY)];
389 memset(afmask, 0, sizeof(afmask));
390 for (afp = afs; afp != NULL; afp = afp->af_next) {
391 if (afp->af_status_tunnel == NULL)
393 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
395 afp->af_status_tunnel(s);
396 setbit(afmask, afp->af_af);
400 static struct cmd *cmds = NULL;
403 cmd_register(struct cmd *p)
409 static const struct cmd *
410 cmd_lookup(const char *name, int iscreate)
412 #define N(a) (sizeof(a)/sizeof(a[0]))
415 for (p = cmds; p != NULL; p = p->c_next)
416 if (strcmp(name, p->c_name) == 0) {
430 callback_func *cb_func;
432 struct callback *cb_next;
434 static struct callback *callbacks = NULL;
437 callback_register(callback_func *func, void *arg)
441 cb = malloc(sizeof(struct callback));
443 errx(1, "unable to allocate memory for callback");
446 cb->cb_next = callbacks;
450 /* specially-handled commands */
451 static void setifaddr(const char *, int, int, const struct afswtch *);
452 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
454 static void setifdstaddr(const char *, int, int, const struct afswtch *);
455 static const struct cmd setifdstaddr_cmd =
456 DEF_CMD("ifdstaddr", 0, setifdstaddr);
459 ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
461 const struct afswtch *afp, *nafp;
466 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
467 afp = uafp != NULL ? uafp : af_getbyname("inet");
469 ifr.ifr_addr.sa_family =
470 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
471 AF_LOCAL : afp->af_af;
473 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
474 (uafp != NULL || errno != EPROTONOSUPPORT ||
475 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
476 err(1, "socket(family %u,SOCK_DGRAM", ifr.ifr_addr.sa_family);
479 p = cmd_lookup(*argv, iscreate);
480 if (iscreate && p == NULL) {
482 * Push the clone create callback so the new
483 * device is created and can be used for any
484 * remaining arguments.
488 errx(1, "internal error, no callback");
489 callbacks = cb->cb_next;
490 cb->cb_func(s, cb->cb_arg);
493 * Handle any address family spec that
494 * immediately follows and potentially
495 * recreate the socket.
497 nafp = af_getbyname(*argv);
507 * Look for a normal parameter.
513 * Not a recognized command, choose between setting
514 * the interface address and the dst address.
516 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
518 if (p->c_u.c_func || p->c_u.c_func2) {
519 if (p->c_parameter == NEXTARG) {
521 errx(1, "'%s' requires argument",
523 p->c_u.c_func(argv[1], 0, s, afp);
525 } else if (p->c_parameter == OPTARG) {
526 p->c_u.c_func(argv[1], 0, s, afp);
529 } else if (p->c_parameter == NEXTARG2) {
531 errx(1, "'%s' requires 2 arguments",
533 p->c_u.c_func2(argv[1], argv[2], s, afp);
534 argc -= 2, argv += 2;
536 p->c_u.c_func(*argv, p->c_parameter, s, afp);
542 * Do any post argument processing required by the address family.
544 if (afp->af_postproc != NULL)
545 afp->af_postproc(s, afp);
547 * Do deferred callbacks registered while processing
548 * command-line arguments.
550 for (cb = callbacks; cb != NULL; cb = cb->cb_next)
551 cb->cb_func(s, cb->cb_arg);
553 * Do deferred operations.
556 if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
557 warnx("interface %s cannot change %s addresses!",
564 strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
565 ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
567 if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
568 /* means no previous address for interface */
570 Perror("ioctl (SIOCDIFADDR)");
574 if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
575 warnx("interface %s cannot change %s addresses!",
580 if (newaddr && (setaddr || setmask)) {
581 strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
582 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
583 Perror("ioctl (SIOCAIFADDR)");
592 setifaddr(const char *addr, int param, int s, const struct afswtch *afp)
594 if (afp->af_getaddr == NULL)
597 * Delay the ioctl to set the interface addr until flags are all set.
598 * The address interpretation may depend on the flags,
599 * and the flags may change when the address is set.
602 if (doalias == 0 && afp->af_af != AF_LINK)
604 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
608 settunnel(const char *src, const char *dst, int s, const struct afswtch *afp)
610 struct addrinfo *srcres, *dstres;
613 if (afp->af_settunnel == NULL) {
614 warn("address family %s does not support tunnel setup",
619 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
620 errx(1, "error in parsing address string: %s",
621 gai_strerror(ecode));
623 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
624 errx(1, "error in parsing address string: %s",
625 gai_strerror(ecode));
627 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
629 "source and destination address families do not match");
631 afp->af_settunnel(s, srcres, dstres);
633 freeaddrinfo(srcres);
634 freeaddrinfo(dstres);
639 deletetunnel(const char *vname, int param, int s, const struct afswtch *afp)
642 if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
643 err(1, "SIOCDIFPHYADDR");
647 setifvnet(const char *jname, int dummy __unused, int s,
648 const struct afswtch *afp)
652 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
653 my_ifr.ifr_jid = jail_getid(jname);
654 if (my_ifr.ifr_jid < 0)
655 errx(1, "%s", jail_errmsg);
656 if (ioctl(s, SIOCSIFVNET, &my_ifr) < 0)
657 err(1, "SIOCSIFVNET");
661 setifrvnet(const char *jname, int dummy __unused, int s,
662 const struct afswtch *afp)
666 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
667 my_ifr.ifr_jid = jail_getid(jname);
668 if (my_ifr.ifr_jid < 0)
669 errx(1, "%s", jail_errmsg);
670 if (ioctl(s, SIOCSIFRVNET, &my_ifr) < 0)
671 err(1, "SIOCSIFRVNET(%d, %s)", my_ifr.ifr_jid, my_ifr.ifr_name);
675 setifnetmask(const char *addr, int dummy __unused, int s,
676 const struct afswtch *afp)
678 if (afp->af_getaddr != NULL) {
680 afp->af_getaddr(addr, MASK);
685 setifbroadaddr(const char *addr, int dummy __unused, int s,
686 const struct afswtch *afp)
688 if (afp->af_getaddr != NULL)
689 afp->af_getaddr(addr, DSTADDR);
693 setifipdst(const char *addr, int dummy __unused, int s,
694 const struct afswtch *afp)
696 const struct afswtch *inet;
698 inet = af_getbyname("inet");
701 inet->af_getaddr(addr, DSTADDR);
707 notealias(const char *addr, int param, int s, const struct afswtch *afp)
709 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
710 if (setaddr && doalias == 0 && param < 0)
711 if (afp->af_addreq != NULL && afp->af_ridreq != NULL)
712 bcopy((caddr_t)rqtosa(af_addreq),
713 (caddr_t)rqtosa(af_ridreq),
714 rqtosa(af_addreq)->sa_len);
726 setifdstaddr(const char *addr, int param __unused, int s,
727 const struct afswtch *afp)
729 if (afp->af_getaddr != NULL)
730 afp->af_getaddr(addr, DSTADDR);
734 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion
735 * of the ifreq structure, which may confuse other parts of ifconfig.
736 * Make a private copy so we can avoid that.
739 setifflags(const char *vname, int value, int s, const struct afswtch *afp)
744 memset(&my_ifr, 0, sizeof(my_ifr));
745 (void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));
747 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
748 Perror("ioctl (SIOCGIFFLAGS)");
751 flags = (my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16);
758 my_ifr.ifr_flags = flags & 0xffff;
759 my_ifr.ifr_flagshigh = flags >> 16;
760 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
765 setifcap(const char *vname, int value, int s, const struct afswtch *afp)
769 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) {
770 Perror("ioctl (SIOCGIFCAP)");
773 flags = ifr.ifr_curcap;
779 flags &= ifr.ifr_reqcap;
780 ifr.ifr_reqcap = flags;
781 if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0)
786 setifmetric(const char *val, int dummy __unused, int s,
787 const struct afswtch *afp)
789 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
790 ifr.ifr_metric = atoi(val);
791 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
792 warn("ioctl (set metric)");
796 setifmtu(const char *val, int dummy __unused, int s,
797 const struct afswtch *afp)
799 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
800 ifr.ifr_mtu = atoi(val);
801 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
802 warn("ioctl (set mtu)");
806 setifname(const char *val, int dummy __unused, int s,
807 const struct afswtch *afp)
811 newname = strdup(val);
812 if (newname == NULL) {
813 warn("no memory to set ifname");
816 ifr.ifr_data = newname;
817 if (ioctl(s, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
818 warn("ioctl (set name)");
822 strlcpy(name, newname, sizeof(name));
828 setifdescr(const char *val, int dummy __unused, int s,
829 const struct afswtch *afp)
833 ifr.ifr_buffer.length = strlen(val) + 1;
834 if (ifr.ifr_buffer.length == 1) {
835 ifr.ifr_buffer.buffer = newdescr = NULL;
836 ifr.ifr_buffer.length = 0;
838 newdescr = strdup(val);
839 ifr.ifr_buffer.buffer = newdescr;
840 if (newdescr == NULL) {
841 warn("no memory to set ifdescr");
846 if (ioctl(s, SIOCSIFDESCR, (caddr_t)&ifr) < 0)
847 warn("ioctl (set descr)");
854 unsetifdescr(const char *val, int value, int s, const struct afswtch *afp)
857 setifdescr("", 0, s, 0);
861 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \
862 "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
863 "\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP"
866 "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
867 "\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \
868 "\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE"
871 * Print the status of the interface. If an address family was
872 * specified, show only it; otherwise, show them all.
875 status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
884 ifr.ifr_addr.sa_family = AF_LOCAL;
887 ifr.ifr_addr.sa_family =
888 afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af;
890 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
892 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
894 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
896 printf("%s: ", name);
897 printb("flags", ifa->ifa_flags, IFFBITS);
898 if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1)
899 printf(" metric %d", ifr.ifr_metric);
900 if (ioctl(s, SIOCGIFMTU, &ifr) != -1)
901 printf(" mtu %d", ifr.ifr_mtu);
905 if ((descr = reallocf(descr, descrlen)) != NULL) {
906 ifr.ifr_buffer.buffer = descr;
907 ifr.ifr_buffer.length = descrlen;
908 if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) {
909 if (ifr.ifr_buffer.buffer == descr) {
910 if (strlen(descr) > 0)
911 printf("\tdescription: %s\n",
913 } else if (ifr.ifr_buffer.length > descrlen) {
914 descrlen = ifr.ifr_buffer.length;
919 warn("unable to allocate memory for interface"
924 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
925 if (ifr.ifr_curcap != 0) {
926 printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
929 if (supmedia && ifr.ifr_reqcap != 0) {
930 printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS);
937 for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
938 if (ift->ifa_addr == NULL)
940 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
943 const struct afswtch *p;
944 p = af_getbyfamily(ift->ifa_addr->sa_family);
945 if (p != NULL && p->af_status != NULL)
946 p->af_status(s, ift);
947 } else if (afp->af_af == ift->ifa_addr->sa_family)
948 afp->af_status(s, ift);
951 if (allfamilies || afp->af_af == AF_LINK) {
952 const struct afswtch *lafp;
955 * Hack; the link level address is received separately
956 * from the routing information so any address is not
957 * handled above. Cobble together an entry and invoke
958 * the status method specially.
960 lafp = af_getbyname("lladdr");
962 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
963 lafp->af_status(s, &info);
969 else if (afp->af_other_status != NULL)
970 afp->af_other_status(s);
972 strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
973 if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
974 printf("%s", ifs.ascii);
983 af_all_tunnel_status(s);
987 Perror(const char *cmd)
992 errx(1, "%s: no such interface", cmd);
996 errx(1, "%s: permission denied", cmd);
1005 * Print a value a la the %b format of the kernel's printf
1008 printb(const char *s, unsigned v, const char *bits)
1013 if (bits && *bits == 8)
1014 printf("%s=%o", s, v);
1016 printf("%s=%x", s, v);
1020 while ((i = *bits++) != '\0') {
1021 if (v & (1 << (i-1))) {
1025 for (; (c = *bits) > 32; bits++)
1028 for (; *bits > 32; bits++)
1036 ifmaybeload(const char *name)
1038 #define MOD_PREFIX_LEN 3 /* "if_" */
1039 struct module_stat mstat;
1041 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
1044 /* loading suppressed by the user */
1048 /* trim the interface number off the end */
1049 strlcpy(ifname, name, sizeof(ifname));
1050 for (dp = ifname; *dp != 0; dp++)
1056 /* turn interface and unit into module name */
1057 strcpy(ifkind, "if_");
1058 strlcpy(ifkind + MOD_PREFIX_LEN, ifname,
1059 sizeof(ifkind) - MOD_PREFIX_LEN);
1061 /* scan files in kernel */
1062 mstat.version = sizeof(struct module_stat);
1063 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
1064 /* scan modules in file */
1065 for (modid = kldfirstmod(fileid); modid > 0;
1066 modid = modfnext(modid)) {
1067 if (modstat(modid, &mstat) < 0)
1069 /* strip bus name if present */
1070 if ((cp = strchr(mstat.name, '/')) != NULL) {
1075 /* already loaded? */
1076 if (strncmp(ifname, cp, strlen(ifname) + 1) == 0 ||
1077 strncmp(ifkind, cp, strlen(ifkind) + 1) == 0)
1082 /* not present, we should try to load it */
1086 static struct cmd basic_cmds[] = {
1087 DEF_CMD("up", IFF_UP, setifflags),
1088 DEF_CMD("down", -IFF_UP, setifflags),
1089 DEF_CMD("arp", -IFF_NOARP, setifflags),
1090 DEF_CMD("-arp", IFF_NOARP, setifflags),
1091 DEF_CMD("debug", IFF_DEBUG, setifflags),
1092 DEF_CMD("-debug", -IFF_DEBUG, setifflags),
1093 DEF_CMD_ARG("description", setifdescr),
1094 DEF_CMD_ARG("descr", setifdescr),
1095 DEF_CMD("-description", 0, unsetifdescr),
1096 DEF_CMD("-descr", 0, unsetifdescr),
1097 DEF_CMD("promisc", IFF_PPROMISC, setifflags),
1098 DEF_CMD("-promisc", -IFF_PPROMISC, setifflags),
1099 DEF_CMD("add", IFF_UP, notealias),
1100 DEF_CMD("alias", IFF_UP, notealias),
1101 DEF_CMD("-alias", -IFF_UP, notealias),
1102 DEF_CMD("delete", -IFF_UP, notealias),
1103 DEF_CMD("remove", -IFF_UP, notealias),
1105 #define EN_SWABIPS 0x1000
1106 DEF_CMD("swabips", EN_SWABIPS, setifflags),
1107 DEF_CMD("-swabips", -EN_SWABIPS, setifflags),
1109 DEF_CMD_ARG("netmask", setifnetmask),
1110 DEF_CMD_ARG("metric", setifmetric),
1111 DEF_CMD_ARG("broadcast", setifbroadaddr),
1112 DEF_CMD_ARG("ipdst", setifipdst),
1113 DEF_CMD_ARG2("tunnel", settunnel),
1114 DEF_CMD("-tunnel", 0, deletetunnel),
1115 DEF_CMD("deletetunnel", 0, deletetunnel),
1116 DEF_CMD_ARG("vnet", setifvnet),
1117 DEF_CMD_ARG("-vnet", setifrvnet),
1118 DEF_CMD("link0", IFF_LINK0, setifflags),
1119 DEF_CMD("-link0", -IFF_LINK0, setifflags),
1120 DEF_CMD("link1", IFF_LINK1, setifflags),
1121 DEF_CMD("-link1", -IFF_LINK1, setifflags),
1122 DEF_CMD("link2", IFF_LINK2, setifflags),
1123 DEF_CMD("-link2", -IFF_LINK2, setifflags),
1124 DEF_CMD("monitor", IFF_MONITOR, setifflags),
1125 DEF_CMD("-monitor", -IFF_MONITOR, setifflags),
1126 DEF_CMD("staticarp", IFF_STATICARP, setifflags),
1127 DEF_CMD("-staticarp", -IFF_STATICARP, setifflags),
1128 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
1129 DEF_CMD("-rxcsum", -IFCAP_RXCSUM, setifcap),
1130 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
1131 DEF_CMD("-txcsum", -IFCAP_TXCSUM, setifcap),
1132 DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
1133 DEF_CMD("-netcons", -IFCAP_NETCONS, setifcap),
1134 DEF_CMD("polling", IFCAP_POLLING, setifcap),
1135 DEF_CMD("-polling", -IFCAP_POLLING, setifcap),
1136 DEF_CMD("tso", IFCAP_TSO, setifcap),
1137 DEF_CMD("-tso", -IFCAP_TSO, setifcap),
1138 DEF_CMD("lro", IFCAP_LRO, setifcap),
1139 DEF_CMD("-lro", -IFCAP_LRO, setifcap),
1140 DEF_CMD("wol", IFCAP_WOL, setifcap),
1141 DEF_CMD("-wol", -IFCAP_WOL, setifcap),
1142 DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
1143 DEF_CMD("-wol_ucast", -IFCAP_WOL_UCAST, setifcap),
1144 DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
1145 DEF_CMD("-wol_mcast", -IFCAP_WOL_MCAST, setifcap),
1146 DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
1147 DEF_CMD("-wol_magic", -IFCAP_WOL_MAGIC, setifcap),
1148 DEF_CMD("normal", -IFF_LINK0, setifflags),
1149 DEF_CMD("compress", IFF_LINK0, setifflags),
1150 DEF_CMD("noicmp", IFF_LINK1, setifflags),
1151 DEF_CMD_ARG("mtu", setifmtu),
1152 DEF_CMD_ARG("name", setifname),
1155 static __constructor void
1158 #define N(a) (sizeof(a) / sizeof(a[0]))
1161 for (i = 0; i < N(basic_cmds); i++)
1162 cmd_register(&basic_cmds[i]);