1/*
2 * Copyright (c) 2009-2013 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29/*
30 * Copyright (c) 1983, 1993
31 *	The Regents of the University of California.  All rights reserved.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 *    notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 *    notice, this list of conditions and the following disclaimer in the
40 *    documentation and/or other materials provided with the distribution.
41 * 4. Neither the name of the University nor the names of its contributors
42 *    may be used to endorse or promote products derived from this software
43 *    without specific prior written permission.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
48 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * SUCH DAMAGE.
56 */
57
58
59#include <sys/param.h>
60#include <sys/ioctl.h>
61#include <sys/socket.h>
62#include <net/if.h>
63
64#include <err.h>
65#include <errno.h>
66#include <stdio.h>
67#include <stdlib.h>
68#include <string.h>
69#include <unistd.h>
70#include <ifaddrs.h>
71
72#include <arpa/inet.h>
73
74#include <netinet/in.h>
75#include <net/if_var.h>		/* for struct ifaddr */
76#include <netinet/in_var.h>
77#include <arpa/inet.h>
78#include <netdb.h>
79
80#include <netinet6/nd6.h>	/* Define ND6_INFINITE_LIFETIME */
81
82#include "ifconfig.h"
83
84#define ND6BITS "\020\001PERFORMNUD\002ACCEPT_RTADV\003PREFER_SOURCE" \
85	"\004IFDISABLED\005DONT_SET_IFROUTE\006PROXY_PREFIXES" \
86	"\007IGNORE_NA\010INSECURE"
87
88static	struct in6_ifreq in6_ridreq;
89static	struct in6_aliasreq in6_addreq =
90  { { 0 },
91    { 0 },
92    { 0 },
93    { 0 },
94    0,
95    { 0, 0, ND6_INFINITE_LIFETIME, ND6_INFINITE_LIFETIME } };
96static	int ip6lifetime;
97
98static	void in6_fillscopeid(struct sockaddr_in6 *sin6);
99static	int prefix(void *, int);
100static	char *sec2str(time_t);
101static	int explicit_prefix = 0;
102
103static	char addr_buf[MAXHOSTNAMELEN *2 + 1];	/*for getnameinfo()*/
104
105static void
106setifprefixlen(const char *addr, int dummy __unused, int s,
107    const struct afswtch *afp)
108{
109        if (afp->af_getprefix != NULL)
110                afp->af_getprefix(addr, MASK);
111	explicit_prefix = 1;
112}
113
114static void
115setnd6flags(const char *dummyaddr __unused, int d, int s,
116    const struct afswtch *afp)
117{
118	struct in6_ndireq nd;
119	int error;
120
121	memset(&nd, 0, sizeof(nd));
122	strncpy(nd.ifname, ifr.ifr_name, sizeof(nd.ifname));
123	error = ioctl(s, SIOCGIFINFO_IN6, &nd);
124	if (error) {
125		warn("ioctl(SIOCGIFINFO_IN6)");
126		return;
127	}
128	if (d < 0)
129		nd.ndi.flags &= ~(-d);
130	else
131		nd.ndi.flags |= d;
132	error = ioctl(s, SIOCSIFINFO_FLAGS, (caddr_t)&nd);
133	if (error)
134		warn("ioctl(SIOCSIFINFO_FLAGS)");
135}
136
137static void
138setip6flags(const char *dummyaddr __unused, int flag, int dummysoc __unused,
139    const struct afswtch *afp)
140{
141	if (afp->af_af != AF_INET6)
142		err(1, "address flags can be set only for inet6 addresses");
143
144	if (flag < 0)
145		in6_addreq.ifra_flags &= ~(-flag);
146	else
147		in6_addreq.ifra_flags |= flag;
148}
149
150static void
151setip6lifetime(const char *cmd, const char *val, int s,
152    const struct afswtch *afp)
153{
154	time_t newval, t;
155	char *ep;
156
157	t = time(NULL);
158	newval = (time_t)strtoul(val, &ep, 0);
159	if (val == ep)
160		errx(1, "invalid %s", cmd);
161	if (afp->af_af != AF_INET6)
162		errx(1, "%s not allowed for the AF", cmd);
163	if (strcmp(cmd, "vltime") == 0) {
164		in6_addreq.ifra_lifetime.ia6t_expire = t + newval;
165		in6_addreq.ifra_lifetime.ia6t_vltime = newval;
166	} else if (strcmp(cmd, "pltime") == 0) {
167		in6_addreq.ifra_lifetime.ia6t_preferred = t + newval;
168		in6_addreq.ifra_lifetime.ia6t_pltime = newval;
169	}
170}
171
172static void
173setip6pltime(const char *seconds, int dummy __unused, int s,
174    const struct afswtch *afp)
175{
176	setip6lifetime("pltime", seconds, s, afp);
177}
178
179static void
180setip6vltime(const char *seconds, int dummy __unused, int s,
181    const struct afswtch *afp)
182{
183	setip6lifetime("vltime", seconds, s, afp);
184}
185
186static void
187setip6eui64(const char *cmd, int dummy __unused, int s,
188    const struct afswtch *afp)
189{
190	struct ifaddrs *ifap, *ifa;
191	const struct sockaddr_in6 *sin6 = NULL;
192	const struct in6_addr *lladdr = NULL;
193	struct in6_addr *in6;
194
195	if (afp->af_af != AF_INET6)
196		errx(EXIT_FAILURE, "%s not allowed for the AF", cmd);
197 	in6 = (struct in6_addr *)&in6_addreq.ifra_addr.sin6_addr;
198	if (memcmp(&in6addr_any.s6_addr[8], &in6->s6_addr[8], 8) != 0)
199		errx(EXIT_FAILURE, "interface index is already filled");
200	if (getifaddrs(&ifap) != 0)
201		err(EXIT_FAILURE, "getifaddrs");
202	for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
203		if (ifa->ifa_addr->sa_family == AF_INET6 &&
204		    strcmp(ifa->ifa_name, name) == 0) {
205			sin6 = (const struct sockaddr_in6 *)ifa->ifa_addr;
206			if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
207				lladdr = &sin6->sin6_addr;
208				break;
209			}
210		}
211	}
212	if (!lladdr)
213		errx(EXIT_FAILURE, "could not determine link local address");
214
215 	memcpy(&in6->s6_addr[8], &lladdr->s6_addr[8], 8);
216
217	freeifaddrs(ifap);
218}
219
220static void
221in6_fillscopeid(struct sockaddr_in6 *sin6)
222{
223#if defined(__KAME__) && defined(KAME_SCOPEID)
224	if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
225		sin6->sin6_scope_id =
226			ntohs(*(u_int16_t *)&sin6->sin6_addr.s6_addr[2]);
227		sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0;
228	}
229#endif
230}
231
232static void
233in6_status(int s __unused, const struct ifaddrs *ifa)
234{
235	struct sockaddr_in6 *sin, null_sin;
236	struct in6_ifreq ifr6;
237	int s6;
238	u_int32_t flags6;
239	struct in6_addrlifetime lifetime;
240	time_t t = time(NULL);
241	int error;
242	u_int32_t scopeid;
243
244	memset(&null_sin, 0, sizeof(null_sin));
245
246	sin = (struct sockaddr_in6 *)ifa->ifa_addr;
247	if (sin == NULL)
248		return;
249
250	strncpy(ifr6.ifr_name, ifr.ifr_name, sizeof(ifr.ifr_name));
251	if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
252		warn("socket(AF_INET6,SOCK_DGRAM)");
253		return;
254	}
255	ifr6.ifr_addr = *sin;
256	if (ioctl(s6, SIOCGIFAFLAG_IN6, &ifr6) < 0) {
257		warn("ioctl(SIOCGIFAFLAG_IN6)");
258		close(s6);
259		return;
260	}
261	flags6 = ifr6.ifr_ifru.ifru_flags6;
262	memset(&lifetime, 0, sizeof(lifetime));
263	ifr6.ifr_addr = *sin;
264	if (ioctl(s6, SIOCGIFALIFETIME_IN6, &ifr6) < 0) {
265		warn("ioctl(SIOCGIFALIFETIME_IN6)");
266		close(s6);
267		return;
268	}
269	lifetime = ifr6.ifr_ifru.ifru_lifetime;
270	close(s6);
271
272	/* XXX: embedded link local addr check */
273	if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
274	    *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) {
275		u_short index;
276
277		index = *(u_short *)&sin->sin6_addr.s6_addr[2];
278		*(u_short *)&sin->sin6_addr.s6_addr[2] = 0;
279		if (sin->sin6_scope_id == 0)
280			sin->sin6_scope_id = ntohs(index);
281	}
282	scopeid = sin->sin6_scope_id;
283
284	error = getnameinfo((struct sockaddr *)sin, sin->sin6_len, addr_buf,
285			    sizeof(addr_buf), NULL, 0, NI_NUMERICHOST);
286	if (error != 0)
287		inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
288			  sizeof(addr_buf));
289	printf("\tinet6 %s ", addr_buf);
290
291	if (ifa->ifa_flags & IFF_POINTOPOINT) {
292		sin = (struct sockaddr_in6 *)ifa->ifa_dstaddr;
293		/*
294		 * some of the interfaces do not have valid destination
295		 * address.
296		 */
297		if (sin != NULL && sin->sin6_family == AF_INET6) {
298			int error;
299
300			/* XXX: embedded link local addr check */
301			if (IN6_IS_ADDR_LINKLOCAL(&sin->sin6_addr) &&
302			    *(u_short *)&sin->sin6_addr.s6_addr[2] != 0) {
303				u_short index;
304
305				index = *(u_short *)&sin->sin6_addr.s6_addr[2];
306				*(u_short *)&sin->sin6_addr.s6_addr[2] = 0;
307				if (sin->sin6_scope_id == 0)
308					sin->sin6_scope_id = ntohs(index);
309			}
310
311			error = getnameinfo((struct sockaddr *)sin,
312					    sin->sin6_len, addr_buf,
313					    sizeof(addr_buf), NULL, 0,
314					    NI_NUMERICHOST);
315			if (error != 0)
316				inet_ntop(AF_INET6, &sin->sin6_addr, addr_buf,
317					  sizeof(addr_buf));
318			printf("--> %s ", addr_buf);
319		}
320	}
321
322	sin = (struct sockaddr_in6 *)ifa->ifa_netmask;
323	if (sin == NULL)
324		sin = &null_sin;
325	printf("prefixlen %d ", prefix(&sin->sin6_addr,
326		sizeof(struct in6_addr)));
327
328	if ((flags6 & IN6_IFF_ANYCAST) != 0)
329		printf("anycast ");
330	if ((flags6 & IN6_IFF_TENTATIVE) != 0)
331		printf("tentative ");
332	if ((flags6 & IN6_IFF_OPTIMISTIC) != 0)
333		printf("optimistic ");
334	if ((flags6 & IN6_IFF_DUPLICATED) != 0)
335		printf("duplicated ");
336	if ((flags6 & IN6_IFF_DETACHED) != 0)
337		printf("detached ");
338	if ((flags6 & IN6_IFF_DEPRECATED) != 0)
339		printf("deprecated ");
340	if ((flags6 & IN6_IFF_AUTOCONF) != 0)
341		printf("autoconf ");
342	if ((flags6 & IN6_IFF_TEMPORARY) != 0)
343		printf("temporary ");
344	if ((flags6 & IN6_IFF_DYNAMIC) != 0)
345		printf("dynamic ");
346	if ((flags6 & IN6_IFF_SECURED) != 0)
347		printf("secured ");
348
349        if (scopeid)
350		printf("scopeid 0x%x ", scopeid);
351
352	if (ip6lifetime && (lifetime.ia6t_preferred || lifetime.ia6t_expire)) {
353		printf("pltime ");
354		if (lifetime.ia6t_preferred) {
355			printf("%s ", lifetime.ia6t_preferred < t
356				? "0" : sec2str(lifetime.ia6t_preferred - t));
357		} else
358			printf("infty ");
359
360		printf("vltime ");
361		if (lifetime.ia6t_expire) {
362			printf("%s ", lifetime.ia6t_expire < t
363				? "0" : sec2str(lifetime.ia6t_expire - t));
364		} else
365			printf("infty ");
366	}
367
368	putchar('\n');
369}
370
371#define	SIN6(x) ((struct sockaddr_in6 *) &(x))
372static struct	sockaddr_in6 *sin6tab[] = {
373	SIN6(in6_ridreq.ifr_addr), SIN6(in6_addreq.ifra_addr),
374	SIN6(in6_addreq.ifra_prefixmask), SIN6(in6_addreq.ifra_dstaddr)
375};
376
377static void
378in6_getprefix(const char *plen, int which)
379{
380	struct sockaddr_in6 *sin = sin6tab[which];
381	u_char *cp;
382	int len = atoi(plen);
383
384	if ((len < 0) || (len > 128))
385		errx(1, "%s: bad value", plen);
386	sin->sin6_len = sizeof(*sin);
387	if (which != MASK)
388		sin->sin6_family = AF_INET6;
389	if ((len == 0) || (len == 128)) {
390		memset(&sin->sin6_addr, 0xff, sizeof(struct in6_addr));
391		return;
392	}
393	memset((void *)&sin->sin6_addr, 0x00, sizeof(sin->sin6_addr));
394	for (cp = (u_char *)&sin->sin6_addr; len > 7; len -= 8)
395		*cp++ = 0xff;
396	*cp = 0xff << (8 - len);
397}
398
399static void
400in6_getaddr(const char *s, int which)
401{
402	struct sockaddr_in6 *sin = sin6tab[which];
403	struct addrinfo hints, *res;
404	int error = -1;
405
406	newaddr &= 1;
407
408	sin->sin6_len = sizeof(*sin);
409	if (which != MASK)
410		sin->sin6_family = AF_INET6;
411
412	if (which == ADDR) {
413		char *p = NULL;
414		if((p = strrchr(s, '/')) != NULL) {
415			*p = '\0';
416			in6_getprefix(p + 1, MASK);
417			explicit_prefix = 1;
418		}
419	}
420
421	if (sin->sin6_family == AF_INET6) {
422		bzero(&hints, sizeof(struct addrinfo));
423		hints.ai_family = AF_INET6;
424		error = getaddrinfo(s, NULL, &hints, &res);
425	}
426	if (error != 0) {
427		if (inet_pton(AF_INET6, s, &sin->sin6_addr) != 1)
428			errx(1, "%s: bad value", s);
429	} else
430		bcopy(res->ai_addr, sin, res->ai_addrlen);
431}
432
433static int
434prefix(void *val, int size)
435{
436        u_char *name = (u_char *)val;
437        int byte, bit, plen = 0;
438
439        for (byte = 0; byte < size; byte++, plen += 8)
440                if (name[byte] != 0xff)
441                        break;
442	if (byte == size)
443		return (plen);
444	for (bit = 7; bit != 0; bit--, plen++)
445                if (!(name[byte] & (1 << bit)))
446                        break;
447        for (; bit != 0; bit--)
448                if (name[byte] & (1 << bit))
449                        return(0);
450        byte++;
451        for (; byte < size; byte++)
452                if (name[byte])
453                        return(0);
454        return (plen);
455}
456
457static char *
458sec2str(time_t total)
459{
460	static char result[256];
461	int days, hours, mins, secs;
462	int first = 1;
463	char *p = result;
464
465	if (0) {
466		days = total / 3600 / 24;
467		hours = (total / 3600) % 24;
468		mins = (total / 60) % 60;
469		secs = total % 60;
470
471		if (days) {
472			first = 0;
473			p += snprintf(p, sizeof(result) - (p - result), "%dd", days);
474		}
475		if (!first || hours) {
476			first = 0;
477			p += snprintf(p, sizeof(result) - (p - result), "%dh", hours);
478		}
479		if (!first || mins) {
480			first = 0;
481			p += snprintf(p, sizeof(result) - (p - result), "%dm", mins);
482		}
483		snprintf(p, sizeof(result) - (p - result), "%ds", secs);
484	} else
485		snprintf(result, sizeof(result), "%lu", (unsigned long)total);
486
487	return(result);
488}
489
490static void
491in6_postproc(int s, const struct afswtch *afp)
492{
493	if (explicit_prefix == 0) {
494		/* Aggregatable address architecture defines all prefixes
495		   are 64. So, it is convenient to set prefixlen to 64 if
496		   it is not specified. */
497		setifprefixlen("64", 0, s, afp);
498		/* in6_getprefix("64", MASK) if MASK is available here... */
499	}
500}
501
502static void
503in6_status_tunnel(int s)
504{
505	char src[NI_MAXHOST];
506	char dst[NI_MAXHOST];
507	struct in6_ifreq in6_ifr;
508	const struct sockaddr *sa = (const struct sockaddr *) &in6_ifr.ifr_addr;
509
510	memset(&in6_ifr, 0, sizeof(in6_ifr));
511	strncpy(in6_ifr.ifr_name, name, IFNAMSIZ);
512
513	if (ioctl(s, SIOCGIFPSRCADDR_IN6, (caddr_t)&in6_ifr) < 0)
514		return;
515	if (sa->sa_family != AF_INET6)
516		return;
517	in6_fillscopeid(&in6_ifr.ifr_addr);
518	if (getnameinfo(sa, sa->sa_len, src, sizeof(src), 0, 0,
519	    NI_NUMERICHOST) != 0)
520		src[0] = '\0';
521
522	if (ioctl(s, SIOCGIFPDSTADDR_IN6, (caddr_t)&in6_ifr) < 0)
523		return;
524	if (sa->sa_family != AF_INET6)
525		return;
526	in6_fillscopeid(&in6_ifr.ifr_addr);
527	if (getnameinfo(sa, sa->sa_len, dst, sizeof(dst), 0, 0,
528	    NI_NUMERICHOST) != 0)
529		dst[0] = '\0';
530
531	printf("\ttunnel inet6 %s --> %s\n", src, dst);
532}
533
534static void
535nd6_status(int s)
536{
537	struct in6_ndireq nd;
538	int s6;
539	int error;
540
541	memset(&nd, 0, sizeof(nd));
542	strncpy(nd.ifname, ifr.ifr_name, sizeof(nd.ifname));
543	if ((s6 = socket(AF_INET6, SOCK_DGRAM, 0)) < 0) {
544		if (errno != EPROTONOSUPPORT)
545			warn("socket(AF_INET6, SOCK_DGRAM)");
546		return;
547	}
548	error = ioctl(s6, SIOCGIFINFO_IN6, &nd);
549	if (error) {
550		if (errno != EPFNOSUPPORT && errno != EINVAL)
551			warn("ioctl(SIOCGIFINFO_IN6)");
552		close(s6);
553		return;
554	}
555	close(s6);
556	if (nd.ndi.flags == 0)
557		return;
558	printb("\tnd6 options", (unsigned int)nd.ndi.flags, ND6BITS);
559	putchar('\n');
560}
561
562static void
563in6_set_tunnel(int s, struct addrinfo *srcres, struct addrinfo *dstres)
564{
565	struct in6_aliasreq in6_addreq;
566
567	memset(&in6_addreq, 0, sizeof(in6_addreq));
568	strncpy(in6_addreq.ifra_name, name, IFNAMSIZ);
569	memcpy(&in6_addreq.ifra_addr, srcres->ai_addr, srcres->ai_addr->sa_len);
570	memcpy(&in6_addreq.ifra_dstaddr, dstres->ai_addr,
571	    dstres->ai_addr->sa_len);
572
573	if (ioctl(s, SIOCSIFPHYADDR_IN6, &in6_addreq) < 0)
574		warn("SIOCSIFPHYADDR_IN6");
575}
576
577static void
578in6_set_router(int s, int enable)
579{
580	struct ifreq ifr;
581
582	bzero(&ifr, sizeof (ifr));
583	strncpy(ifr.ifr_name, name, IFNAMSIZ);
584	ifr.ifr_intval = enable;
585
586	if (ioctl(s, SIOCSETROUTERMODE_IN6, &ifr) < 0)
587		warn("SIOCSETROUTERMODE_IN6");
588}
589
590static struct cmd inet6_cmds[] = {
591	DEF_CMD_ARG("prefixlen",			setifprefixlen),
592	DEF_CMD("anycast",	IN6_IFF_ANYCAST,	setip6flags),
593	DEF_CMD("tentative",	IN6_IFF_TENTATIVE,	setip6flags),
594	DEF_CMD("-tentative",	-IN6_IFF_TENTATIVE,	setip6flags),
595	/* RFC 4429, section 3.1, says:
596	 * "Optimistic DAD SHOULD NOT be used for manually entered
597	 * addresses."
598	 *
599	 * DEF_CMD("optimistic",	IN6_IFF_OPTIMISTIC,	setip6flags),
600	 * DEF_CMD("-optimistic",	-IN6_IFF_OPTIMISTIC,	setip6flags),
601	 */
602	DEF_CMD("deprecated",	IN6_IFF_DEPRECATED,	setip6flags),
603	DEF_CMD("-deprecated", -IN6_IFF_DEPRECATED,	setip6flags),
604	DEF_CMD("autoconf",	IN6_IFF_AUTOCONF,	setip6flags),
605	DEF_CMD("-autoconf",	-IN6_IFF_AUTOCONF,	setip6flags),
606	DEF_CMD("nud",		ND6_IFF_PERFORMNUD,	setnd6flags),
607	DEF_CMD("-nud",		-ND6_IFF_PERFORMNUD,	setnd6flags),
608	DEF_CMD("ifdisabled",   ND6_IFF_IFDISABLED,	setnd6flags),
609	DEF_CMD("-ifdisabled",  -ND6_IFF_IFDISABLED,	setnd6flags),
610	DEF_CMD("ignore_na",	ND6_IFF_IGNORE_NA,	setnd6flags),
611	DEF_CMD("-ignore_na",	-ND6_IFF_IGNORE_NA,	setnd6flags),
612	DEF_CMD("proxy_prefixes", ND6_IFF_PROXY_PREFIXES,	setnd6flags),
613	DEF_CMD("-proxy_prefixes", -ND6_IFF_PROXY_PREFIXES,	setnd6flags),
614	DEF_CMD("insecure",	ND6_IFF_INSECURE,	setnd6flags),
615	DEF_CMD("-insecure",	-ND6_IFF_INSECURE,	setnd6flags),
616	DEF_CMD_ARG("pltime",        			setip6pltime),
617	DEF_CMD_ARG("vltime",        			setip6vltime),
618	DEF_CMD("eui64",	0,			setip6eui64),
619	DEF_CMD("secured",	IN6_IFF_SECURED,	setip6flags),
620	DEF_CMD("-secured",	-IN6_IFF_SECURED,	setip6flags),
621};
622
623static struct afswtch af_inet6 = {
624	.af_name	= "inet6",
625	.af_af		= AF_INET6,
626	.af_status	= in6_status,
627	.af_getaddr	= in6_getaddr,
628	.af_getprefix	= in6_getprefix,
629	.af_other_status = nd6_status,
630	.af_postproc	= in6_postproc,
631	.af_status_tunnel = in6_status_tunnel,
632	.af_settunnel	= in6_set_tunnel,
633	.af_setrouter	= in6_set_router,
634	.af_difaddr	= SIOCDIFADDR_IN6,
635	.af_aifaddr	= SIOCAIFADDR_IN6,
636	.af_ridreq	= &in6_ridreq,
637	.af_addreq	= &in6_addreq,
638};
639
640static void
641in6_Lopt_cb(const char *optarg __unused)
642{
643	ip6lifetime++;	/* print IPv6 address lifetime */
644}
645static struct option in6_Lopt = { "L", "[-L]", in6_Lopt_cb };
646
647static __constructor void
648inet6_ctor(void)
649{
650#define	N(a)	(sizeof(a) / sizeof(a[0]))
651	int i;
652
653	for (i = 0; i < N(inet6_cmds);  i++)
654		cmd_register(&inet6_cmds[i]);
655	af_register(&af_inet6);
656	opt_register(&in6_Lopt);
657#undef N
658}
659