keysock.c revision 1.46 
1/*	$NetBSD: keysock.c,v 1.46 2015/04/24 22:32:38 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 1.46 2015/04/24 22:32:38 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
64typedef int	pr_output_t (struct mbuf *, struct socket *);
65
66struct key_cb {
67	int key_count;
68	int any_count;
69};
70static struct key_cb key_cb;
71
72static struct sockaddr key_dst = {
73    .sa_len = 2,
74    .sa_family = PF_KEY,
75};
76static struct sockaddr key_src = {
77    .sa_len = 2,
78    .sa_family = PF_KEY,
79};
80
81
82static int key_sendup0(struct rawcb *, struct mbuf *, int, int);
83
84int key_registered_sb_max = (2048 * MHLEN); /* XXX arbitrary */
85
86/*
87 * key_output()
88 */
89int
90key_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);
145end:
146	if (m)
147		m_freem(m);
148	return error;
149}
150
151/*
152 * send message to the socket.
153 */
154static int
155key_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. */
205int
206key_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 */
297int
298key_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
432static int
433key_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;
461out:
462	KASSERT(solocked(so));
463	splx(s);
464	return error;
465}
466
467static void
468key_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
485static int
486key_accept(struct socket *so, struct sockaddr *nam)
487{
488	KASSERT(solocked(so));
489
490	panic("key_accept");
491
492	return EOPNOTSUPP;
493}
494
495static int
496key_bind(struct socket *so, struct sockaddr *nam, struct lwp *l)
497{
498	KASSERT(solocked(so));
499
500	return EOPNOTSUPP;
501}
502
503static int
504key_listen(struct socket *so, struct lwp *l)
505{
506	KASSERT(solocked(so));
507
508	return EOPNOTSUPP;
509}
510
511static int
512key_connect(struct socket *so, struct mbuf *nam, struct lwp *l)
513{
514	KASSERT(solocked(so));
515
516	return EOPNOTSUPP;
517}
518
519static int
520key_connect2(struct socket *so, struct socket *so2)
521{
522	KASSERT(solocked(so));
523
524	return EOPNOTSUPP;
525}
526
527static int
528key_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
544static int
545key_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
561static int
562key_abort(struct socket *so)
563{
564	KASSERT(solocked(so));
565
566	panic("key_abort");
567
568	return EOPNOTSUPP;
569}
570
571static int
572key_ioctl(struct socket *so, u_long cmd, void *nam, struct ifnet *ifp)
573{
574	return EOPNOTSUPP;
575}
576
577static int
578key_stat(struct socket *so, struct stat *ub)
579{
580	KASSERT(solocked(so));
581
582	return 0;
583}
584
585static int
586key_peeraddr(struct socket *so, struct sockaddr *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
601static int
602key_sockaddr(struct socket *so, struct sockaddr *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
617static int
618key_rcvd(struct socket *so, int flags, struct lwp *l)
619{
620	KASSERT(solocked(so));
621
622	return EOPNOTSUPP;
623}
624
625static int
626key_recvoob(struct socket *so, struct mbuf *m, int flags)
627{
628	KASSERT(solocked(so));
629
630	return EOPNOTSUPP;
631}
632
633static int
634key_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
649static int
650key_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
660static int
661key_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 */
673static int
674key_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
711DOMAIN_DEFINE(keydomain);
712
713PR_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
735const 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
758const 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
771struct 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