xref: /netbsd-src/sys/netipsec/keysock.c (revision f89f6560d453f5e37386cc7938c072d2f528b9fa) 
1 /*	$NetBSD: keysock.c,v 1.45 2015/04/03 20:01:07 rtr Exp $	*/
2 /*	$FreeBSD: src/sys/netipsec/keysock.c,v 1.3.2.1 2003/01/24 05:11:36 sam Exp $	*/
3 /*	$KAME: keysock.c,v 1.25 2001/08/13 20:07:41 itojun Exp $	*/
4 
5 /*
6  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. Neither the name of the project nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #include <sys/cdefs.h>
35 __KERNEL_RCSID(0, "$NetBSD: keysock.c,v 1.45 2015/04/03 20:01:07 rtr Exp $");
36 
37 /* This code has derived from sys/net/rtsock.c on FreeBSD2.2.5 */
38 
39 #include <sys/types.h>
40 #include <sys/param.h>
41 #include <sys/domain.h>
42 #include <sys/errno.h>
43 #include <sys/kernel.h>
44 #include <sys/kmem.h>
45 #include <sys/mbuf.h>
46 #include <sys/protosw.h>
47 #include <sys/signalvar.h>
48 #include <sys/socket.h>
49 #include <sys/socketvar.h>
50 #include <sys/sysctl.h>
51 #include <sys/systm.h>
52 
53 #include <net/raw_cb.h>
54 #include <net/route.h>
55 
56 #include <net/pfkeyv2.h>
57 #include <netipsec/key.h>
58 #include <netipsec/keysock.h>
59 #include <netipsec/key_debug.h>
60 
61 #include <netipsec/ipsec_osdep.h>
62 #include <netipsec/ipsec_private.h>
63 
64 typedef int	pr_output_t (struct mbuf *, struct socket *);
65 
66 struct key_cb {
67 	int key_count;
68 	int any_count;
69 };
70 static struct key_cb key_cb;
71 
72 static struct sockaddr key_dst = {
73     .sa_len = 2,
74     .sa_family = PF_KEY,
75 };
76 static struct sockaddr key_src = {
77     .sa_len = 2,
78     .sa_family = PF_KEY,
79 };
80 
81 
82 static int key_sendup0(struct rawcb *, struct mbuf *, int, int);
83 
84 int key_registered_sb_max = (2048 * MHLEN); /* XXX arbitrary */
85 
86 /*
87  * key_output()
88  */
89 int
90 key_output(struct mbuf *m, ...)
91 {
92 	struct sadb_msg *msg;
93 	int len, error = 0;
94 	int s;
95 	struct socket *so;
96 	va_list ap;
97 
98 	va_start(ap, m);
99 	so = va_arg(ap, struct socket *);
100 	va_end(ap);
101 
102 	if (m == 0)
103 		panic("key_output: NULL pointer was passed");
104 
105 	{
106 		uint64_t *ps = PFKEY_STAT_GETREF();
107 		ps[PFKEY_STAT_OUT_TOTAL]++;
108 		ps[PFKEY_STAT_OUT_BYTES] += m->m_pkthdr.len;
109 		PFKEY_STAT_PUTREF();
110 	}
111 
112 	len = m->m_pkthdr.len;
113 	if (len < sizeof(struct sadb_msg)) {
114 		PFKEY_STATINC(PFKEY_STAT_OUT_TOOSHORT);
115 		error = EINVAL;
116 		goto end;
117 	}
118 
119 	if (m->m_len < sizeof(struct sadb_msg)) {
120 		if ((m = m_pullup(m, sizeof(struct sadb_msg))) == 0) {
121 			PFKEY_STATINC(PFKEY_STAT_OUT_NOMEM);
122 			error = ENOBUFS;
123 			goto end;
124 		}
125 	}
126 
127 	if ((m->m_flags & M_PKTHDR) == 0)
128 		panic("key_output: not M_PKTHDR ??");
129 
130 	KEYDEBUG(KEYDEBUG_KEY_DUMP, kdebug_mbuf(m));
131 
132 	msg = mtod(m, struct sadb_msg *);
133 	PFKEY_STATINC(PFKEY_STAT_OUT_MSGTYPE + msg->sadb_msg_type);
134 	if (len != PFKEY_UNUNIT64(msg->sadb_msg_len)) {
135 		PFKEY_STATINC(PFKEY_STAT_OUT_INVLEN);
136 		error = EINVAL;
137 		goto end;
138 	}
139 
140 	/*XXX giant lock*/
141 	s = splsoftnet();
142 	error = key_parse(m, so);
143 	m = NULL;
144 	splx(s);
145 end:
146 	if (m)
147 		m_freem(m);
148 	return error;
149 }
150 
151 /*
152  * send message to the socket.
153  */
154 static int
155 key_sendup0(
156     struct rawcb *rp,
157     struct mbuf *m,
158     int promisc,
159     int sbprio
160 )
161 {
162 	int error;
163 	int ok;
164 
165 	if (promisc) {
166 		struct sadb_msg *pmsg;
167 
168 		M_PREPEND(m, sizeof(struct sadb_msg), M_DONTWAIT);
169 		if (m && m->m_len < sizeof(struct sadb_msg))
170 			m = m_pullup(m, sizeof(struct sadb_msg));
171 		if (!m) {
172 			PFKEY_STATINC(PFKEY_STAT_IN_NOMEM);
173 			return ENOBUFS;
174 		}
175 		m->m_pkthdr.len += sizeof(*pmsg);
176 
177 		pmsg = mtod(m, struct sadb_msg *);
178 		memset(pmsg, 0, sizeof(*pmsg));
179 		pmsg->sadb_msg_version = PF_KEY_V2;
180 		pmsg->sadb_msg_type = SADB_X_PROMISC;
181 		pmsg->sadb_msg_len = PFKEY_UNIT64(m->m_pkthdr.len);
182 		/* pid and seq? */
183 
184 		PFKEY_STATINC(PFKEY_STAT_IN_MSGTYPE + pmsg->sadb_msg_type);
185 	}
186 
187 	if (sbprio == 0)
188 		ok = sbappendaddr(&rp->rcb_socket->so_rcv,
189 			       (struct sockaddr *)&key_src, m, NULL);
190 	else
191 		ok = sbappendaddrchain(&rp->rcb_socket->so_rcv,
192 			       (struct sockaddr *)&key_src, m, sbprio);
193 
194 	  if (!ok) {
195 		PFKEY_STATINC(PFKEY_STAT_IN_NOMEM);
196 		m_freem(m);
197 		error = ENOBUFS;
198 	} else
199 		error = 0;
200 	sorwakeup(rp->rcb_socket);
201 	return error;
202 }
203 
204 /* XXX this interface should be obsoleted. */
205 int
206 key_sendup(struct socket *so, struct sadb_msg *msg, u_int len,
207 	   int target)	/*target of the resulting message*/
208 {
209 	struct mbuf *m, *n, *mprev;
210 	int tlen;
211 
212 	/* sanity check */
213 	if (so == 0 || msg == 0)
214 		panic("key_sendup: NULL pointer was passed");
215 
216 	KEYDEBUG(KEYDEBUG_KEY_DUMP,
217 		printf("key_sendup: \n");
218 		kdebug_sadb(msg));
219 
220 	/*
221 	 * we increment statistics here, just in case we have ENOBUFS
222 	 * in this function.
223 	 */
224 	{
225 		uint64_t *ps = PFKEY_STAT_GETREF();
226 		ps[PFKEY_STAT_IN_TOTAL]++;
227 		ps[PFKEY_STAT_IN_BYTES] += len;
228 		ps[PFKEY_STAT_IN_MSGTYPE + msg->sadb_msg_type]++;
229 		PFKEY_STAT_PUTREF();
230 	}
231 
232 	/*
233 	 * Get mbuf chain whenever possible (not clusters),
234 	 * to save socket buffer.  We'll be generating many SADB_ACQUIRE
235 	 * messages to listening key sockets.  If we simply allocate clusters,
236 	 * sbappendaddr() will raise ENOBUFS due to too little sbspace().
237 	 * sbspace() computes # of actual data bytes AND mbuf region.
238 	 *
239 	 * TODO: SADB_ACQUIRE filters should be implemented.
240 	 */
241 	tlen = len;
242 	m = mprev = NULL;
243 	while (tlen > 0) {
244 		int mlen;
245 		if (tlen == len) {
246 			MGETHDR(n, M_DONTWAIT, MT_DATA);
247 			mlen = MHLEN;
248 		} else {
249 			MGET(n, M_DONTWAIT, MT_DATA);
250 			mlen = MLEN;
251 		}
252 		if (!n) {
253 			PFKEY_STATINC(PFKEY_STAT_IN_NOMEM);
254 			return ENOBUFS;
255 		}
256 		n->m_len = mlen;
257 		if (tlen >= MCLBYTES) {	/*XXX better threshold? */
258 			MCLGET(n, M_DONTWAIT);
259 			if ((n->m_flags & M_EXT) == 0) {
260 				m_free(n);
261 				m_freem(m);
262 				PFKEY_STATINC(PFKEY_STAT_IN_NOMEM);
263 				return ENOBUFS;
264 			}
265 			n->m_len = MCLBYTES;
266 		}
267 
268 		if (tlen < n->m_len)
269 			n->m_len = tlen;
270 		n->m_next = NULL;
271 		if (m == NULL)
272 			m = mprev = n;
273 		else {
274 			mprev->m_next = n;
275 			mprev = n;
276 		}
277 		tlen -= n->m_len;
278 		n = NULL;
279 	}
280 	m->m_pkthdr.len = len;
281 	m->m_pkthdr.rcvif = NULL;
282 	m_copyback(m, 0, len, msg);
283 
284 	/* avoid duplicated statistics */
285 	{
286 		uint64_t *ps = PFKEY_STAT_GETREF();
287 		ps[PFKEY_STAT_IN_TOTAL]--;
288 		ps[PFKEY_STAT_IN_BYTES] -= len;
289 		ps[PFKEY_STAT_IN_MSGTYPE + msg->sadb_msg_type]--;
290 		PFKEY_STAT_PUTREF();
291 	}
292 
293 	return key_sendup_mbuf(so, m, target);
294 }
295 
296 /* so can be NULL if target != KEY_SENDUP_ONE */
297 int
298 key_sendup_mbuf(struct socket *so, struct mbuf *m,
299 		int target/*, sbprio */)
300 {
301 	struct mbuf *n;
302 	struct keycb *kp;
303 	int sendup;
304 	struct rawcb *rp;
305 	int error = 0;
306 	int sbprio = 0; /* XXX should be a parameter */
307 
308 	if (m == NULL)
309 		panic("key_sendup_mbuf: NULL pointer was passed");
310 	if (so == NULL && target == KEY_SENDUP_ONE)
311 		panic("key_sendup_mbuf: NULL pointer was passed");
312 
313 	/*
314 	 * RFC 2367 says ACQUIRE and other kernel-generated messages
315 	 * are special. We treat all KEY_SENDUP_REGISTERED messages
316 	 * as special, delivering them to all registered sockets
317 	 * even if the socket is at or above its so->so_rcv.sb_max limits.
318 	 * The only constraint is that the  so_rcv data fall below
319 	 * key_registered_sb_max.
320 	 * Doing that check here avoids reworking every key_sendup_mbuf()
321 	 * in the short term. . The rework will be done after a technical
322 	 * conensus that this approach is appropriate.
323  	 */
324 	if (target == KEY_SENDUP_REGISTERED) {
325 		sbprio = SB_PRIO_BESTEFFORT;
326 	}
327 
328 	{
329 		uint64_t *ps = PFKEY_STAT_GETREF();
330 		ps[PFKEY_STAT_IN_TOTAL]++;
331 		ps[PFKEY_STAT_IN_BYTES] += m->m_pkthdr.len;
332 		PFKEY_STAT_PUTREF();
333 	}
334 	if (m->m_len < sizeof(struct sadb_msg)) {
335 #if 1
336 		m = m_pullup(m, sizeof(struct sadb_msg));
337 		if (m == NULL) {
338 			PFKEY_STATINC(PFKEY_STAT_IN_NOMEM);
339 			return ENOBUFS;
340 		}
341 #else
342 		/* don't bother pulling it up just for stats */
343 #endif
344 	}
345 	if (m->m_len >= sizeof(struct sadb_msg)) {
346 		struct sadb_msg *msg;
347 		msg = mtod(m, struct sadb_msg *);
348 		PFKEY_STATINC(PFKEY_STAT_IN_MSGTYPE + msg->sadb_msg_type);
349 	}
350 
351 	LIST_FOREACH(rp, &rawcb_list, rcb_list)
352 	{
353 		struct socket * kso = rp->rcb_socket;
354 		if (rp->rcb_proto.sp_family != PF_KEY)
355 			continue;
356 		if (rp->rcb_proto.sp_protocol
357 		 && rp->rcb_proto.sp_protocol != PF_KEY_V2) {
358 			continue;
359 		}
360 
361 		kp = (struct keycb *)rp;
362 
363 		/*
364 		 * If you are in promiscuous mode, and when you get broadcasted
365 		 * reply, you'll get two PF_KEY messages.
366 		 * (based on pf_key@inner.net message on 14 Oct 1998)
367 		 */
368 		if (((struct keycb *)rp)->kp_promisc) {
369 			if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) {
370 				(void)key_sendup0(rp, n, 1, 0);
371 				n = NULL;
372 			}
373 		}
374 
375 		/* the exact target will be processed later */
376 		if (so && sotorawcb(so) == rp)
377 			continue;
378 
379 		sendup = 0;
380 		switch (target) {
381 		case KEY_SENDUP_ONE:
382 			/* the statement has no effect */
383 			if (so && sotorawcb(so) == rp)
384 				sendup++;
385 			break;
386 		case KEY_SENDUP_ALL:
387 			sendup++;
388 			break;
389 		case KEY_SENDUP_REGISTERED:
390 			if (kp->kp_registered) {
391 				if (kso->so_rcv.sb_cc <= key_registered_sb_max)
392 					sendup++;
393 			  	else
394 			  		printf("keysock: "
395 					       "registered sendup dropped, "
396 					       "sb_cc %ld max %d\n",
397 					       kso->so_rcv.sb_cc,
398 					       key_registered_sb_max);
399 			}
400 			break;
401 		}
402 		PFKEY_STATINC(PFKEY_STAT_IN_MSGTARGET + target);
403 
404 		if (!sendup)
405 			continue;
406 
407 		if ((n = m_copy(m, 0, (int)M_COPYALL)) == NULL) {
408 			m_freem(m);
409 			PFKEY_STATINC(PFKEY_STAT_IN_NOMEM);
410 			return ENOBUFS;
411 		}
412 
413 		if ((error = key_sendup0(rp, n, 0, 0)) != 0) {
414 			m_freem(m);
415 			return error;
416 		}
417 
418 		n = NULL;
419 	}
420 
421 	/* The 'later' time for processing the exact target has arrived */
422 	if (so) {
423 		error = key_sendup0(sotorawcb(so), m, 0, sbprio);
424 		m = NULL;
425 	} else {
426 		error = 0;
427 		m_freem(m);
428 	}
429 	return error;
430 }
431 
432 static int
433 key_attach(struct socket *so, int proto)
434 {
435 	struct keycb *kp;
436 	int s, error;
437 
438 	KASSERT(sotorawcb(so) == NULL);
439 	kp = kmem_zalloc(sizeof(*kp), KM_SLEEP);
440 	kp->kp_raw.rcb_len = sizeof(*kp);
441 	so->so_pcb = kp;
442 
443 	s = splsoftnet();
444 	error = raw_attach(so, proto);
445 	if (error) {
446 		PFKEY_STATINC(PFKEY_STAT_SOCKERR);
447 		kmem_free(kp, sizeof(*kp));
448 		so->so_pcb = NULL;
449 		goto out;
450 	}
451 
452 	kp->kp_promisc = kp->kp_registered = 0;
453 
454 	if (kp->kp_raw.rcb_proto.sp_protocol == PF_KEY) /* XXX: AF_KEY */
455 		key_cb.key_count++;
456 	key_cb.any_count++;
457 	kp->kp_raw.rcb_laddr = &key_src;
458 	kp->kp_raw.rcb_faddr = &key_dst;
459 	soisconnected(so);
460 	so->so_options |= SO_USELOOPBACK;
461 out:
462 	KASSERT(solocked(so));
463 	splx(s);
464 	return error;
465 }
466 
467 static void
468 key_detach(struct socket *so)
469 {
470 	struct keycb *kp = (struct keycb *)sotorawcb(so);
471 	int s;
472 
473 	KASSERT(solocked(so));
474 	KASSERT(kp != NULL);
475 
476 	s = splsoftnet();
477 	if (kp->kp_raw.rcb_proto.sp_protocol == PF_KEY) /* XXX: AF_KEY */
478 		key_cb.key_count--;
479 	key_cb.any_count--;
480 	key_freereg(so);
481 	raw_detach(so);
482 	splx(s);
483 }
484 
485 static int
486 key_accept(struct socket *so, struct mbuf *nam)
487 {
488 	KASSERT(solocked(so));
489 
490 	panic("key_accept");
491 
492 	return EOPNOTSUPP;
493 }
494 
495 static int
496 key_bind(struct socket *so, struct sockaddr *nam, struct lwp *l)
497 {
498 	KASSERT(solocked(so));
499 
500 	return EOPNOTSUPP;
501 }
502 
503 static int
504 key_listen(struct socket *so, struct lwp *l)
505 {
506 	KASSERT(solocked(so));
507 
508 	return EOPNOTSUPP;
509 }
510 
511 static int
512 key_connect(struct socket *so, struct mbuf *nam, struct lwp *l)
513 {
514 	KASSERT(solocked(so));
515 
516 	return EOPNOTSUPP;
517 }
518 
519 static int
520 key_connect2(struct socket *so, struct socket *so2)
521 {
522 	KASSERT(solocked(so));
523 
524 	return EOPNOTSUPP;
525 }
526 
527 static int
528 key_disconnect(struct socket *so)
529 {
530 	struct rawcb *rp = sotorawcb(so);
531 	int s;
532 
533 	KASSERT(solocked(so));
534 	KASSERT(rp != NULL);
535 
536 	s = splsoftnet();
537 	soisdisconnected(so);
538 	raw_disconnect(rp);
539 	splx(s);
540 
541 	return 0;
542 }
543 
544 static int
545 key_shutdown(struct socket *so)
546 {
547 	int s;
548 
549 	KASSERT(solocked(so));
550 
551 	/*
552 	 * Mark the connection as being incapable of further input.
553 	 */
554 	s = splsoftnet();
555 	socantsendmore(so);
556 	splx(s);
557 
558 	return 0;
559 }
560 
561 static int
562 key_abort(struct socket *so)
563 {
564 	KASSERT(solocked(so));
565 
566 	panic("key_abort");
567 
568 	return EOPNOTSUPP;
569 }
570 
571 static int
572 key_ioctl(struct socket *so, u_long cmd, void *nam, struct ifnet *ifp)
573 {
574 	return EOPNOTSUPP;
575 }
576 
577 static int
578 key_stat(struct socket *so, struct stat *ub)
579 {
580 	KASSERT(solocked(so));
581 
582 	return 0;
583 }
584 
585 static int
586 key_peeraddr(struct socket *so, struct mbuf *nam)
587 {
588 	struct rawcb *rp = sotorawcb(so);
589 
590 	KASSERT(solocked(so));
591 	KASSERT(rp != NULL);
592 	KASSERT(nam != NULL);
593 
594 	if (rp->rcb_faddr == NULL)
595 		return ENOTCONN;
596 
597 	raw_setpeeraddr(rp, nam);
598 	return 0;
599 }
600 
601 static int
602 key_sockaddr(struct socket *so, struct mbuf *nam)
603 {
604 	struct rawcb *rp = sotorawcb(so);
605 
606 	KASSERT(solocked(so));
607 	KASSERT(rp != NULL);
608 	KASSERT(nam != NULL);
609 
610 	if (rp->rcb_faddr == NULL)
611 		return ENOTCONN;
612 
613 	raw_setsockaddr(rp, nam);
614 	return 0;
615 }
616 
617 static int
618 key_rcvd(struct socket *so, int flags, struct lwp *l)
619 {
620 	KASSERT(solocked(so));
621 
622 	return EOPNOTSUPP;
623 }
624 
625 static int
626 key_recvoob(struct socket *so, struct mbuf *m, int flags)
627 {
628 	KASSERT(solocked(so));
629 
630 	return EOPNOTSUPP;
631 }
632 
633 static int
634 key_send(struct socket *so, struct mbuf *m, struct mbuf *nam,
635     struct mbuf *control, struct lwp *l)
636 {
637 	int error = 0;
638 	int s;
639 
640 	KASSERT(solocked(so));
641 
642 	s = splsoftnet();
643 	error = raw_send(so, m, nam, control, l);
644 	splx(s);
645 
646 	return error;
647 }
648 
649 static int
650 key_sendoob(struct socket *so, struct mbuf *m, struct mbuf *control)
651 {
652 	KASSERT(solocked(so));
653 
654 	m_freem(m);
655 	m_freem(control);
656 
657 	return EOPNOTSUPP;
658 }
659 
660 static int
661 key_purgeif(struct socket *so, struct ifnet *ifa)
662 {
663 
664 	panic("key_purgeif");
665 
666 	return EOPNOTSUPP;
667 }
668 
669 /*
670  * key_usrreq()
671  * derived from net/rtsock.c:route_usrreq()
672  */
673 static int
674 key_usrreq(struct socket *so, int req,struct mbuf *m, struct mbuf *nam,
675     struct mbuf *control, struct lwp *l)
676 {
677 	int s, error = 0;
678 
679 	KASSERT(req != PRU_ATTACH);
680 	KASSERT(req != PRU_DETACH);
681 	KASSERT(req != PRU_ACCEPT);
682 	KASSERT(req != PRU_BIND);
683 	KASSERT(req != PRU_LISTEN);
684 	KASSERT(req != PRU_CONNECT);
685 	KASSERT(req != PRU_CONNECT2);
686 	KASSERT(req != PRU_DISCONNECT);
687 	KASSERT(req != PRU_SHUTDOWN);
688 	KASSERT(req != PRU_ABORT);
689 	KASSERT(req != PRU_CONTROL);
690 	KASSERT(req != PRU_SENSE);
691 	KASSERT(req != PRU_PEERADDR);
692 	KASSERT(req != PRU_SOCKADDR);
693 	KASSERT(req != PRU_RCVD);
694 	KASSERT(req != PRU_RCVOOB);
695 	KASSERT(req != PRU_SEND);
696 	KASSERT(req != PRU_SENDOOB);
697 	KASSERT(req != PRU_PURGEIF);
698 
699 	s = splsoftnet();
700 	error = raw_usrreq(so, req, m, nam, control, l);
701 	m = control = NULL;	/* reclaimed in raw_usrreq */
702 	splx(s);
703 
704 	return error;
705 }
706 
707 /*
708  * Definitions of protocols supported in the KEY domain.
709  */
710 
711 DOMAIN_DEFINE(keydomain);
712 
713 PR_WRAP_USRREQS(key)
714 #define	key_attach	key_attach_wrapper
715 #define	key_detach	key_detach_wrapper
716 #define	key_accept	key_accept_wrapper
717 #define	key_bind	key_bind_wrapper
718 #define	key_listen	key_listen_wrapper
719 #define	key_connect	key_connect_wrapper
720 #define	key_connect2	key_connect2_wrapper
721 #define	key_disconnect	key_disconnect_wrapper
722 #define	key_shutdown	key_shutdown_wrapper
723 #define	key_abort	key_abort_wrapper
724 #define	key_ioctl	key_ioctl_wrapper
725 #define	key_stat	key_stat_wrapper
726 #define	key_peeraddr	key_peeraddr_wrapper
727 #define	key_sockaddr	key_sockaddr_wrapper
728 #define	key_rcvd	key_rcvd_wrapper
729 #define	key_recvoob	key_recvoob_wrapper
730 #define	key_send	key_send_wrapper
731 #define	key_sendoob	key_sendoob_wrapper
732 #define	key_purgeif	key_purgeif_wrapper
733 #define	key_usrreq	key_usrreq_wrapper
734 
735 const struct pr_usrreqs key_usrreqs = {
736 	.pr_attach	= key_attach,
737 	.pr_detach	= key_detach,
738 	.pr_accept	= key_accept,
739 	.pr_bind	= key_bind,
740 	.pr_listen	= key_listen,
741 	.pr_connect	= key_connect,
742 	.pr_connect2	= key_connect2,
743 	.pr_disconnect	= key_disconnect,
744 	.pr_shutdown	= key_shutdown,
745 	.pr_abort	= key_abort,
746 	.pr_ioctl	= key_ioctl,
747 	.pr_stat	= key_stat,
748 	.pr_peeraddr	= key_peeraddr,
749 	.pr_sockaddr	= key_sockaddr,
750 	.pr_rcvd	= key_rcvd,
751 	.pr_recvoob	= key_recvoob,
752 	.pr_send	= key_send,
753 	.pr_sendoob	= key_sendoob,
754 	.pr_purgeif	= key_purgeif,
755 	.pr_generic	= key_usrreq,
756 };
757 
758 const struct protosw keysw[] = {
759     {
760 	.pr_type = SOCK_RAW,
761 	.pr_domain = &keydomain,
762 	.pr_protocol = PF_KEY_V2,
763 	.pr_flags = PR_ATOMIC|PR_ADDR,
764 	.pr_output = key_output,
765 	.pr_ctlinput = raw_ctlinput,
766 	.pr_usrreqs = &key_usrreqs,
767 	.pr_init = raw_init,
768     }
769 };
770 
771 struct domain keydomain = {
772     .dom_family = PF_KEY,
773     .dom_name = "key",
774     .dom_init = key_init,
775     .dom_protosw = keysw,
776     .dom_protoswNPROTOSW = &keysw[__arraycount(keysw)],
777 };
778