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 ((ifa->ifa_flags & IFF_CANTCONFIG) != 0)
310 if (downonly && (ifa->ifa_flags & IFF_UP) != 0)
312 if (uponly && (ifa->ifa_flags & IFF_UP) == 0)
316 * Are we just listing the interfaces?
326 ifconfig(argc, argv, 0, afp);
328 status(afp, sdl, ifa);
337 static struct afswtch *afs = NULL;
340 af_register(struct afswtch *p)
346 static struct afswtch *
347 af_getbyname(const char *name)
351 for (afp = afs; afp != NULL; afp = afp->af_next)
352 if (strcmp(afp->af_name, name) == 0)
357 static struct afswtch *
358 af_getbyfamily(int af)
362 for (afp = afs; afp != NULL; afp = afp->af_next)
363 if (afp->af_af == af)
369 af_other_status(int s)
372 uint8_t afmask[howmany(AF_MAX, NBBY)];
374 memset(afmask, 0, sizeof(afmask));
375 for (afp = afs; afp != NULL; afp = afp->af_next) {
376 if (afp->af_other_status == NULL)
378 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
380 afp->af_other_status(s);
381 setbit(afmask, afp->af_af);
386 af_all_tunnel_status(int s)
389 uint8_t afmask[howmany(AF_MAX, NBBY)];
391 memset(afmask, 0, sizeof(afmask));
392 for (afp = afs; afp != NULL; afp = afp->af_next) {
393 if (afp->af_status_tunnel == NULL)
395 if (afp->af_af != AF_UNSPEC && isset(afmask, afp->af_af))
397 afp->af_status_tunnel(s);
398 setbit(afmask, afp->af_af);
402 static struct cmd *cmds = NULL;
405 cmd_register(struct cmd *p)
411 static const struct cmd *
412 cmd_lookup(const char *name, int iscreate)
414 #define N(a) (sizeof(a)/sizeof(a[0]))
417 for (p = cmds; p != NULL; p = p->c_next)
418 if (strcmp(name, p->c_name) == 0) {
432 callback_func *cb_func;
434 struct callback *cb_next;
436 static struct callback *callbacks = NULL;
439 callback_register(callback_func *func, void *arg)
443 cb = malloc(sizeof(struct callback));
445 errx(1, "unable to allocate memory for callback");
448 cb->cb_next = callbacks;
452 /* specially-handled commands */
453 static void setifaddr(const char *, int, int, const struct afswtch *);
454 static const struct cmd setifaddr_cmd = DEF_CMD("ifaddr", 0, setifaddr);
456 static void setifdstaddr(const char *, int, int, const struct afswtch *);
457 static const struct cmd setifdstaddr_cmd =
458 DEF_CMD("ifdstaddr", 0, setifdstaddr);
461 ifconfig(int argc, char *const *argv, int iscreate, const struct afswtch *uafp)
463 const struct afswtch *afp, *nafp;
468 strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
469 afp = uafp != NULL ? uafp : af_getbyname("inet");
471 ifr.ifr_addr.sa_family =
472 afp->af_af == AF_LINK || afp->af_af == AF_UNSPEC ?
473 AF_LOCAL : afp->af_af;
475 if ((s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0)) < 0 &&
476 (uafp != NULL || errno != EPROTONOSUPPORT ||
477 (s = socket(AF_LOCAL, SOCK_DGRAM, 0)) < 0))
478 err(1, "socket(family %u,SOCK_DGRAM", ifr.ifr_addr.sa_family);
481 p = cmd_lookup(*argv, iscreate);
482 if (iscreate && p == NULL) {
484 * Push the clone create callback so the new
485 * device is created and can be used for any
486 * remaining arguments.
490 errx(1, "internal error, no callback");
491 callbacks = cb->cb_next;
492 cb->cb_func(s, cb->cb_arg);
495 * Handle any address family spec that
496 * immediately follows and potentially
497 * recreate the socket.
499 nafp = af_getbyname(*argv);
509 * Look for a normal parameter.
515 * Not a recognized command, choose between setting
516 * the interface address and the dst address.
518 p = (setaddr ? &setifdstaddr_cmd : &setifaddr_cmd);
520 if (p->c_u.c_func || p->c_u.c_func2) {
521 if (p->c_parameter == NEXTARG) {
523 errx(1, "'%s' requires argument",
525 p->c_u.c_func(argv[1], 0, s, afp);
527 } else if (p->c_parameter == OPTARG) {
528 p->c_u.c_func(argv[1], 0, s, afp);
531 } else if (p->c_parameter == NEXTARG2) {
533 errx(1, "'%s' requires 2 arguments",
535 p->c_u.c_func2(argv[1], argv[2], s, afp);
536 argc -= 2, argv += 2;
538 p->c_u.c_func(*argv, p->c_parameter, s, afp);
544 * Do any post argument processing required by the address family.
546 if (afp->af_postproc != NULL)
547 afp->af_postproc(s, afp);
549 * Do deferred callbacks registered while processing
550 * command-line arguments.
552 for (cb = callbacks; cb != NULL; cb = cb->cb_next)
553 cb->cb_func(s, cb->cb_arg);
555 * Do deferred operations.
558 if (afp->af_ridreq == NULL || afp->af_difaddr == 0) {
559 warnx("interface %s cannot change %s addresses!",
566 strncpy(afp->af_ridreq, name, sizeof ifr.ifr_name);
567 ret = ioctl(s, afp->af_difaddr, afp->af_ridreq);
569 if (errno == EADDRNOTAVAIL && (doalias >= 0)) {
570 /* means no previous address for interface */
572 Perror("ioctl (SIOCDIFADDR)");
576 if (afp->af_addreq == NULL || afp->af_aifaddr == 0) {
577 warnx("interface %s cannot change %s addresses!",
582 if (newaddr && (setaddr || setmask)) {
583 strncpy(afp->af_addreq, name, sizeof ifr.ifr_name);
584 if (ioctl(s, afp->af_aifaddr, afp->af_addreq) < 0)
585 Perror("ioctl (SIOCAIFADDR)");
594 setifaddr(const char *addr, int param, int s, const struct afswtch *afp)
596 if (afp->af_getaddr == NULL)
599 * Delay the ioctl to set the interface addr until flags are all set.
600 * The address interpretation may depend on the flags,
601 * and the flags may change when the address is set.
604 if (doalias == 0 && afp->af_af != AF_LINK)
606 afp->af_getaddr(addr, (doalias >= 0 ? ADDR : RIDADDR));
610 settunnel(const char *src, const char *dst, int s, const struct afswtch *afp)
612 struct addrinfo *srcres, *dstres;
615 if (afp->af_settunnel == NULL) {
616 warn("address family %s does not support tunnel setup",
621 if ((ecode = getaddrinfo(src, NULL, NULL, &srcres)) != 0)
622 errx(1, "error in parsing address string: %s",
623 gai_strerror(ecode));
625 if ((ecode = getaddrinfo(dst, NULL, NULL, &dstres)) != 0)
626 errx(1, "error in parsing address string: %s",
627 gai_strerror(ecode));
629 if (srcres->ai_addr->sa_family != dstres->ai_addr->sa_family)
631 "source and destination address families do not match");
633 afp->af_settunnel(s, srcres, dstres);
635 freeaddrinfo(srcres);
636 freeaddrinfo(dstres);
641 deletetunnel(const char *vname, int param, int s, const struct afswtch *afp)
644 if (ioctl(s, SIOCDIFPHYADDR, &ifr) < 0)
645 err(1, "SIOCDIFPHYADDR");
649 setifvnet(const char *jname, int dummy __unused, int s,
650 const struct afswtch *afp)
654 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
655 my_ifr.ifr_jid = jail_getid(jname);
656 if (my_ifr.ifr_jid < 0)
657 errx(1, "%s", jail_errmsg);
658 if (ioctl(s, SIOCSIFVNET, &my_ifr) < 0)
659 err(1, "SIOCSIFVNET");
663 setifrvnet(const char *jname, int dummy __unused, int s,
664 const struct afswtch *afp)
668 memcpy(&my_ifr, &ifr, sizeof(my_ifr));
669 my_ifr.ifr_jid = jail_getid(jname);
670 if (my_ifr.ifr_jid < 0)
671 errx(1, "%s", jail_errmsg);
672 if (ioctl(s, SIOCSIFRVNET, &my_ifr) < 0)
673 err(1, "SIOCSIFRVNET(%d, %s)", my_ifr.ifr_jid, my_ifr.ifr_name);
677 setifnetmask(const char *addr, int dummy __unused, int s,
678 const struct afswtch *afp)
680 if (afp->af_getaddr != NULL) {
682 afp->af_getaddr(addr, MASK);
687 setifbroadaddr(const char *addr, int dummy __unused, int s,
688 const struct afswtch *afp)
690 if (afp->af_getaddr != NULL)
691 afp->af_getaddr(addr, DSTADDR);
695 setifipdst(const char *addr, int dummy __unused, int s,
696 const struct afswtch *afp)
698 const struct afswtch *inet;
700 inet = af_getbyname("inet");
703 inet->af_getaddr(addr, DSTADDR);
709 notealias(const char *addr, int param, int s, const struct afswtch *afp)
711 #define rqtosa(x) (&(((struct ifreq *)(afp->x))->ifr_addr))
712 if (setaddr && doalias == 0 && param < 0)
713 if (afp->af_addreq != NULL && afp->af_ridreq != NULL)
714 bcopy((caddr_t)rqtosa(af_addreq),
715 (caddr_t)rqtosa(af_ridreq),
716 rqtosa(af_addreq)->sa_len);
728 setifdstaddr(const char *addr, int param __unused, int s,
729 const struct afswtch *afp)
731 if (afp->af_getaddr != NULL)
732 afp->af_getaddr(addr, DSTADDR);
736 * Note: doing an SIOCIGIFFLAGS scribbles on the union portion
737 * of the ifreq structure, which may confuse other parts of ifconfig.
738 * Make a private copy so we can avoid that.
741 setifflags(const char *vname, int value, int s, const struct afswtch *afp)
746 memset(&my_ifr, 0, sizeof(my_ifr));
747 (void) strlcpy(my_ifr.ifr_name, name, sizeof(my_ifr.ifr_name));
749 if (ioctl(s, SIOCGIFFLAGS, (caddr_t)&my_ifr) < 0) {
750 Perror("ioctl (SIOCGIFFLAGS)");
753 flags = (my_ifr.ifr_flags & 0xffff) | (my_ifr.ifr_flagshigh << 16);
760 my_ifr.ifr_flags = flags & 0xffff;
761 my_ifr.ifr_flagshigh = flags >> 16;
762 if (ioctl(s, SIOCSIFFLAGS, (caddr_t)&my_ifr) < 0)
767 setifcap(const char *vname, int value, int s, const struct afswtch *afp)
771 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) < 0) {
772 Perror("ioctl (SIOCGIFCAP)");
775 flags = ifr.ifr_curcap;
781 flags &= ifr.ifr_reqcap;
782 ifr.ifr_reqcap = flags;
783 if (ioctl(s, SIOCSIFCAP, (caddr_t)&ifr) < 0)
788 setifmetric(const char *val, int dummy __unused, int s,
789 const struct afswtch *afp)
791 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
792 ifr.ifr_metric = atoi(val);
793 if (ioctl(s, SIOCSIFMETRIC, (caddr_t)&ifr) < 0)
794 warn("ioctl (set metric)");
798 setifmtu(const char *val, int dummy __unused, int s,
799 const struct afswtch *afp)
801 strncpy(ifr.ifr_name, name, sizeof (ifr.ifr_name));
802 ifr.ifr_mtu = atoi(val);
803 if (ioctl(s, SIOCSIFMTU, (caddr_t)&ifr) < 0)
804 warn("ioctl (set mtu)");
808 setifname(const char *val, int dummy __unused, int s,
809 const struct afswtch *afp)
813 newname = strdup(val);
814 if (newname == NULL) {
815 warn("no memory to set ifname");
818 ifr.ifr_data = newname;
819 if (ioctl(s, SIOCSIFNAME, (caddr_t)&ifr) < 0) {
820 warn("ioctl (set name)");
824 strlcpy(name, newname, sizeof(name));
830 setifdescr(const char *val, int dummy __unused, int s,
831 const struct afswtch *afp)
835 ifr.ifr_buffer.length = strlen(val) + 1;
836 if (ifr.ifr_buffer.length == 1) {
837 ifr.ifr_buffer.buffer = newdescr = NULL;
838 ifr.ifr_buffer.length = 0;
840 newdescr = strdup(val);
841 ifr.ifr_buffer.buffer = newdescr;
842 if (newdescr == NULL) {
843 warn("no memory to set ifdescr");
848 if (ioctl(s, SIOCSIFDESCR, (caddr_t)&ifr) < 0)
849 warn("ioctl (set descr)");
856 unsetifdescr(const char *val, int value, int s, const struct afswtch *afp)
859 setifdescr("", 0, s, 0);
863 "\020\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5POINTOPOINT\6SMART\7RUNNING" \
864 "\10NOARP\11PROMISC\12ALLMULTI\13OACTIVE\14SIMPLEX\15LINK0\16LINK1\17LINK2" \
865 "\20MULTICAST\22PPROMISC\23MONITOR\24STATICARP"
868 "\020\1RXCSUM\2TXCSUM\3NETCONS\4VLAN_MTU\5VLAN_HWTAGGING\6JUMBO_MTU\7POLLING" \
869 "\10VLAN_HWCSUM\11TSO4\12TSO6\13LRO\14WOL_UCAST\15WOL_MCAST\16WOL_MAGIC" \
870 "\21VLAN_HWFILTER\23VLAN_HWTSO\24LINKSTATE\25NETMAP"
873 * Print the status of the interface. If an address family was
874 * specified, show only it; otherwise, show them all.
877 status(const struct afswtch *afp, const struct sockaddr_dl *sdl,
886 ifr.ifr_addr.sa_family = AF_LOCAL;
889 ifr.ifr_addr.sa_family =
890 afp->af_af == AF_LINK ? AF_LOCAL : afp->af_af;
892 strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
894 s = socket(ifr.ifr_addr.sa_family, SOCK_DGRAM, 0);
896 err(1, "socket(family %u,SOCK_DGRAM)", ifr.ifr_addr.sa_family);
898 printf("%s: ", name);
899 printb("flags", ifa->ifa_flags, IFFBITS);
900 if (ioctl(s, SIOCGIFMETRIC, &ifr) != -1)
901 printf(" metric %d", ifr.ifr_metric);
902 if (ioctl(s, SIOCGIFMTU, &ifr) != -1)
903 printf(" mtu %d", ifr.ifr_mtu);
907 if ((descr = reallocf(descr, descrlen)) != NULL) {
908 ifr.ifr_buffer.buffer = descr;
909 ifr.ifr_buffer.length = descrlen;
910 if (ioctl(s, SIOCGIFDESCR, &ifr) == 0) {
911 if (ifr.ifr_buffer.buffer == descr) {
912 if (strlen(descr) > 0)
913 printf("\tdescription: %s\n",
915 } else if (ifr.ifr_buffer.length > descrlen) {
916 descrlen = ifr.ifr_buffer.length;
921 warn("unable to allocate memory for interface"
926 if (ioctl(s, SIOCGIFCAP, (caddr_t)&ifr) == 0) {
927 if (ifr.ifr_curcap != 0) {
928 printb("\toptions", ifr.ifr_curcap, IFCAPBITS);
931 if (supmedia && ifr.ifr_reqcap != 0) {
932 printb("\tcapabilities", ifr.ifr_reqcap, IFCAPBITS);
939 for (ift = ifa; ift != NULL; ift = ift->ifa_next) {
940 if (ift->ifa_addr == NULL)
942 if (strcmp(ifa->ifa_name, ift->ifa_name) != 0)
945 const struct afswtch *p;
946 p = af_getbyfamily(ift->ifa_addr->sa_family);
947 if (p != NULL && p->af_status != NULL)
948 p->af_status(s, ift);
949 } else if (afp->af_af == ift->ifa_addr->sa_family)
950 afp->af_status(s, ift);
953 if (allfamilies || afp->af_af == AF_LINK) {
954 const struct afswtch *lafp;
957 * Hack; the link level address is received separately
958 * from the routing information so any address is not
959 * handled above. Cobble together an entry and invoke
960 * the status method specially.
962 lafp = af_getbyname("lladdr");
964 info.rti_info[RTAX_IFA] = (struct sockaddr *)sdl;
965 lafp->af_status(s, &info);
971 else if (afp->af_other_status != NULL)
972 afp->af_other_status(s);
974 strncpy(ifs.ifs_name, name, sizeof ifs.ifs_name);
975 if (ioctl(s, SIOCGIFSTATUS, &ifs) == 0)
976 printf("%s", ifs.ascii);
985 af_all_tunnel_status(s);
989 Perror(const char *cmd)
994 errx(1, "%s: no such interface", cmd);
998 errx(1, "%s: permission denied", cmd);
1007 * Print a value a la the %b format of the kernel's printf
1010 printb(const char *s, unsigned v, const char *bits)
1015 if (bits && *bits == 8)
1016 printf("%s=%o", s, v);
1018 printf("%s=%x", s, v);
1022 while ((i = *bits++) != '\0') {
1023 if (v & (1 << (i-1))) {
1027 for (; (c = *bits) > 32; bits++)
1030 for (; *bits > 32; bits++)
1038 ifmaybeload(const char *name)
1040 #define MOD_PREFIX_LEN 3 /* "if_" */
1041 struct module_stat mstat;
1043 char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
1046 /* loading suppressed by the user */
1050 /* trim the interface number off the end */
1051 strlcpy(ifname, name, sizeof(ifname));
1052 for (dp = ifname; *dp != 0; dp++)
1058 /* turn interface and unit into module name */
1059 strcpy(ifkind, "if_");
1060 strlcpy(ifkind + MOD_PREFIX_LEN, ifname,
1061 sizeof(ifkind) - MOD_PREFIX_LEN);
1063 /* scan files in kernel */
1064 mstat.version = sizeof(struct module_stat);
1065 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
1066 /* scan modules in file */
1067 for (modid = kldfirstmod(fileid); modid > 0;
1068 modid = modfnext(modid)) {
1069 if (modstat(modid, &mstat) < 0)
1071 /* strip bus name if present */
1072 if ((cp = strchr(mstat.name, '/')) != NULL) {
1077 /* already loaded? */
1078 if (strncmp(ifname, cp, strlen(ifname) + 1) == 0 ||
1079 strncmp(ifkind, cp, strlen(ifkind) + 1) == 0)
1084 /* not present, we should try to load it */
1088 static struct cmd basic_cmds[] = {
1089 DEF_CMD("up", IFF_UP, setifflags),
1090 DEF_CMD("down", -IFF_UP, setifflags),
1091 DEF_CMD("arp", -IFF_NOARP, setifflags),
1092 DEF_CMD("-arp", IFF_NOARP, setifflags),
1093 DEF_CMD("debug", IFF_DEBUG, setifflags),
1094 DEF_CMD("-debug", -IFF_DEBUG, setifflags),
1095 DEF_CMD_ARG("description", setifdescr),
1096 DEF_CMD_ARG("descr", setifdescr),
1097 DEF_CMD("-description", 0, unsetifdescr),
1098 DEF_CMD("-descr", 0, unsetifdescr),
1099 DEF_CMD("promisc", IFF_PPROMISC, setifflags),
1100 DEF_CMD("-promisc", -IFF_PPROMISC, setifflags),
1101 DEF_CMD("add", IFF_UP, notealias),
1102 DEF_CMD("alias", IFF_UP, notealias),
1103 DEF_CMD("-alias", -IFF_UP, notealias),
1104 DEF_CMD("delete", -IFF_UP, notealias),
1105 DEF_CMD("remove", -IFF_UP, notealias),
1107 #define EN_SWABIPS 0x1000
1108 DEF_CMD("swabips", EN_SWABIPS, setifflags),
1109 DEF_CMD("-swabips", -EN_SWABIPS, setifflags),
1111 DEF_CMD_ARG("netmask", setifnetmask),
1112 DEF_CMD_ARG("metric", setifmetric),
1113 DEF_CMD_ARG("broadcast", setifbroadaddr),
1114 DEF_CMD_ARG("ipdst", setifipdst),
1115 DEF_CMD_ARG2("tunnel", settunnel),
1116 DEF_CMD("-tunnel", 0, deletetunnel),
1117 DEF_CMD("deletetunnel", 0, deletetunnel),
1118 DEF_CMD_ARG("vnet", setifvnet),
1119 DEF_CMD_ARG("-vnet", setifrvnet),
1120 DEF_CMD("link0", IFF_LINK0, setifflags),
1121 DEF_CMD("-link0", -IFF_LINK0, setifflags),
1122 DEF_CMD("link1", IFF_LINK1, setifflags),
1123 DEF_CMD("-link1", -IFF_LINK1, setifflags),
1124 DEF_CMD("link2", IFF_LINK2, setifflags),
1125 DEF_CMD("-link2", -IFF_LINK2, setifflags),
1126 DEF_CMD("monitor", IFF_MONITOR, setifflags),
1127 DEF_CMD("-monitor", -IFF_MONITOR, setifflags),
1128 DEF_CMD("staticarp", IFF_STATICARP, setifflags),
1129 DEF_CMD("-staticarp", -IFF_STATICARP, setifflags),
1130 DEF_CMD("rxcsum", IFCAP_RXCSUM, setifcap),
1131 DEF_CMD("-rxcsum", -IFCAP_RXCSUM, setifcap),
1132 DEF_CMD("txcsum", IFCAP_TXCSUM, setifcap),
1133 DEF_CMD("-txcsum", -IFCAP_TXCSUM, setifcap),
1134 DEF_CMD("netcons", IFCAP_NETCONS, setifcap),
1135 DEF_CMD("-netcons", -IFCAP_NETCONS, setifcap),
1136 DEF_CMD("polling", IFCAP_POLLING, setifcap),
1137 DEF_CMD("-polling", -IFCAP_POLLING, setifcap),
1138 DEF_CMD("tso", IFCAP_TSO, setifcap),
1139 DEF_CMD("-tso", -IFCAP_TSO, setifcap),
1140 DEF_CMD("lro", IFCAP_LRO, setifcap),
1141 DEF_CMD("-lro", -IFCAP_LRO, setifcap),
1142 DEF_CMD("wol", IFCAP_WOL, setifcap),
1143 DEF_CMD("-wol", -IFCAP_WOL, setifcap),
1144 DEF_CMD("wol_ucast", IFCAP_WOL_UCAST, setifcap),
1145 DEF_CMD("-wol_ucast", -IFCAP_WOL_UCAST, setifcap),
1146 DEF_CMD("wol_mcast", IFCAP_WOL_MCAST, setifcap),
1147 DEF_CMD("-wol_mcast", -IFCAP_WOL_MCAST, setifcap),
1148 DEF_CMD("wol_magic", IFCAP_WOL_MAGIC, setifcap),
1149 DEF_CMD("-wol_magic", -IFCAP_WOL_MAGIC, setifcap),
1150 DEF_CMD("normal", -IFF_LINK0, setifflags),
1151 DEF_CMD("compress", IFF_LINK0, setifflags),
1152 DEF_CMD("noicmp", IFF_LINK1, setifflags),
1153 DEF_CMD_ARG("mtu", setifmtu),
1154 DEF_CMD_ARG("name", setifname),
1157 static __constructor void
1160 #define N(a) (sizeof(a) / sizeof(a[0]))
1163 for (i = 0; i < N(basic_cmds); i++)
1164 cmd_register(&basic_cmds[i]);