1/*	$NetBSD: uipc_domain.c,v 1.109 2023/03/30 15:58:21 riastradh Exp $	*/
2
3/*
4 * Copyright (c) 1982, 1986, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)uipc_domain.c	8.3 (Berkeley) 2/14/95
32 */
33
34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: uipc_domain.c,v 1.109 2023/03/30 15:58:21 riastradh Exp $");
36
37#include <sys/param.h>
38#include <sys/socket.h>
39#include <sys/socketvar.h>
40#include <sys/protosw.h>
41#include <sys/domain.h>
42#include <sys/mbuf.h>
43#include <sys/time.h>
44#include <sys/kernel.h>
45#include <sys/systm.h>
46#include <sys/callout.h>
47#include <sys/queue.h>
48#include <sys/proc.h>
49#include <sys/sysctl.h>
50#include <sys/un.h>
51#include <sys/unpcb.h>
52#include <sys/file.h>
53#include <sys/filedesc.h>
54#include <sys/kauth.h>
55
56#include <netatalk/at.h>
57#include <net/if_dl.h>
58#include <netinet/in.h>
59
60MALLOC_DECLARE(M_SOCKADDR);
61
62MALLOC_DEFINE(M_SOCKADDR, "sockaddr", "socket endpoints");
63
64void	pffasttimo(void *);
65void	pfslowtimo(void *);
66
67struct domainhead domains = STAILQ_HEAD_INITIALIZER(domains);
68static struct domain *domain_array[AF_MAX];
69
70callout_t pffasttimo_ch, pfslowtimo_ch;
71
72/*
73 * Current time values for fast and slow timeouts.  We can use u_int
74 * relatively safely.  The fast timer will roll over in 27 years and
75 * the slow timer in 68 years.
76 */
77u_int	pfslowtimo_now;
78u_int	pffasttimo_now;
79
80static struct sysctllog *domain_sysctllog;
81static void sysctl_net_setup(void);
82
83/* ensure successful linkage even without any domains in link sets */
84static struct domain domain_dummy;
85__link_set_add_rodata(domains,domain_dummy);
86
87static void
88domain_init_timers(void)
89{
90
91	callout_init(&pffasttimo_ch, CALLOUT_MPSAFE);
92	callout_init(&pfslowtimo_ch, CALLOUT_MPSAFE);
93
94	callout_reset(&pffasttimo_ch, 1, pffasttimo, NULL);
95	callout_reset(&pfslowtimo_ch, 1, pfslowtimo, NULL);
96}
97
98void
99domaininit(bool attach)
100{
101	__link_set_decl(domains, struct domain);
102	struct domain * const * dpp;
103	struct domain *rt_domain = NULL;
104
105	sysctl_net_setup();
106
107	/*
108	 * Add all of the domains.  Make sure the PF_ROUTE
109	 * domain is added last.
110	 */
111	if (attach) {
112		__link_set_foreach(dpp, domains) {
113			if (*dpp == &domain_dummy)
114				continue;
115			if ((*dpp)->dom_family == PF_ROUTE)
116				rt_domain = *dpp;
117			else
118				domain_attach(*dpp);
119		}
120		if (rt_domain)
121			domain_attach(rt_domain);
122
123		domain_init_timers();
124	}
125}
126
127/*
128 * Must be called only if domaininit has been called with false and
129 * after all domains have been attached.
130 */
131void
132domaininit_post(void)
133{
134
135	domain_init_timers();
136}
137
138void
139domain_attach(struct domain *dp)
140{
141	const struct protosw *pr;
142
143	STAILQ_INSERT_TAIL(&domains, dp, dom_link);
144	if (dp->dom_family < __arraycount(domain_array))
145		domain_array[dp->dom_family] = dp;
146
147	if (dp->dom_init)
148		(*dp->dom_init)();
149
150#ifdef MBUFTRACE
151	if (dp->dom_mowner.mo_name[0] == '\0') {
152		strncpy(dp->dom_mowner.mo_name, dp->dom_name,
153		    sizeof(dp->dom_mowner.mo_name));
154		MOWNER_ATTACH(&dp->dom_mowner);
155	}
156#endif
157	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
158		if (pr->pr_init)
159			(*pr->pr_init)();
160	}
161
162	if (max_linkhdr < 16)		/* XXX */
163		max_linkhdr = 16;
164	max_hdr = max_linkhdr + max_protohdr;
165	max_datalen = MHLEN - max_hdr;
166}
167
168struct domain *
169pffinddomain(int family)
170{
171	struct domain *dp;
172
173	if (family < __arraycount(domain_array) && domain_array[family] != NULL)
174		return domain_array[family];
175
176	DOMAIN_FOREACH(dp)
177		if (dp->dom_family == family)
178			return dp;
179	return NULL;
180}
181
182const struct protosw *
183pffindtype(int family, int type)
184{
185	struct domain *dp;
186	const struct protosw *pr;
187
188	dp = pffinddomain(family);
189	if (dp == NULL)
190		return NULL;
191
192	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
193		if (pr->pr_type && pr->pr_type == type)
194			return pr;
195
196	return NULL;
197}
198
199const struct protosw *
200pffindproto(int family, int protocol, int type)
201{
202	struct domain *dp;
203	const struct protosw *pr;
204	const struct protosw *maybe = NULL;
205
206	if (family == 0)
207		return NULL;
208
209	dp = pffinddomain(family);
210	if (dp == NULL)
211		return NULL;
212
213	for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
214		if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
215			return pr;
216
217		if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
218		    pr->pr_protocol == 0 && maybe == NULL)
219			maybe = pr;
220	}
221	return maybe;
222}
223
224void *
225sockaddr_addr(struct sockaddr *sa, socklen_t *slenp)
226{
227	const struct domain *dom;
228
229	if ((dom = pffinddomain(sa->sa_family)) == NULL ||
230	    dom->dom_sockaddr_addr == NULL)
231		return NULL;
232
233	return (*dom->dom_sockaddr_addr)(sa, slenp);
234}
235
236const void *
237sockaddr_const_addr(const struct sockaddr *sa, socklen_t *slenp)
238{
239	const struct domain *dom;
240
241	if ((dom = pffinddomain(sa->sa_family)) == NULL ||
242	    dom->dom_sockaddr_const_addr == NULL)
243		return NULL;
244
245	return (*dom->dom_sockaddr_const_addr)(sa, slenp);
246}
247
248const struct sockaddr *
249sockaddr_any_by_family(sa_family_t family)
250{
251	const struct domain *dom;
252
253	if ((dom = pffinddomain(family)) == NULL)
254		return NULL;
255
256	return dom->dom_sa_any;
257}
258
259const struct sockaddr *
260sockaddr_any(const struct sockaddr *sa)
261{
262	return sockaddr_any_by_family(sa->sa_family);
263}
264
265const void *
266sockaddr_anyaddr(const struct sockaddr *sa, socklen_t *slenp)
267{
268	const struct sockaddr *any;
269
270	if ((any = sockaddr_any(sa)) == NULL)
271		return NULL;
272
273	return sockaddr_const_addr(any, slenp);
274}
275
276socklen_t
277sockaddr_getsize_by_family(sa_family_t af)
278{
279	switch (af) {
280	case AF_INET:
281		return sizeof(struct sockaddr_in);
282	case AF_INET6:
283		return sizeof(struct sockaddr_in6);
284	case AF_UNIX:
285		return sizeof(struct sockaddr_un);
286	case AF_LINK:
287		return sizeof(struct sockaddr_dl);
288	case AF_APPLETALK:
289		return sizeof(struct sockaddr_at);
290	default:
291#ifdef DIAGNOSTIC
292		printf("%s: (%s:%u:%u) Unhandled address family=%hhu\n",
293		    __func__, curlwp->l_proc->p_comm,
294		    curlwp->l_proc->p_pid, curlwp->l_lid, af);
295#endif
296		return 0;
297	}
298}
299
300#ifdef DIAGNOSTIC
301static void
302sockaddr_checklen(const struct sockaddr *sa)
303{
304	// Can't tell how much was allocated, if it was allocated.
305	if (sa->sa_family == AF_LINK)
306		return;
307
308	socklen_t len = sockaddr_getsize_by_family(sa->sa_family);
309	if (len == 0 || len == sa->sa_len)
310		return;
311
312	char buf[512];
313	sockaddr_format(sa, buf, sizeof(buf));
314	printf("%s: %p bad len af=%hhu socklen=%hhu len=%u [%s]\n",
315	    __func__, sa, sa->sa_family, sa->sa_len, (unsigned)len, buf);
316}
317#else
318#define sockaddr_checklen(sa) ((void)0)
319#endif
320
321struct sockaddr *
322sockaddr_alloc(sa_family_t af, socklen_t socklen, int flags)
323{
324	struct sockaddr *sa;
325	socklen_t reallen = MAX(socklen, offsetof(struct sockaddr, sa_data[0]));
326
327#ifdef DIAGNOSTIC
328	/*
329	 * sockaddr_checklen passes sa to sockaddr_format which
330	 * requires it to be fully initialized.
331	 *
332	 * XXX This should be factored better.
333	 */
334	flags |= M_ZERO;
335#endif
336	if ((sa = malloc(reallen, M_SOCKADDR, flags)) == NULL)
337		return NULL;
338
339	sa->sa_family = af;
340	sa->sa_len = reallen;
341	sockaddr_checklen(sa);
342	return sa;
343}
344
345struct sockaddr *
346sockaddr_copy(struct sockaddr *dst, socklen_t socklen,
347    const struct sockaddr *src)
348{
349	if (__predict_false(socklen < src->sa_len)) {
350		panic("%s: source too long, %d < %d bytes", __func__, socklen,
351		    src->sa_len);
352	}
353	sockaddr_checklen(src);
354	return memcpy(dst, src, src->sa_len);
355}
356
357struct sockaddr *
358sockaddr_externalize(struct sockaddr *dst, socklen_t socklen,
359    const struct sockaddr *src)
360{
361	struct domain *dom;
362
363	dom = pffinddomain(src->sa_family);
364
365	if (dom != NULL && dom->dom_sockaddr_externalize != NULL)
366		return (*dom->dom_sockaddr_externalize)(dst, socklen, src);
367
368	return sockaddr_copy(dst, socklen, src);
369}
370
371int
372sockaddr_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2)
373{
374	int len, rc;
375	struct domain *dom;
376
377	if (sa1->sa_family != sa2->sa_family)
378		return sa1->sa_family - sa2->sa_family;
379
380	dom = pffinddomain(sa1->sa_family);
381
382	if (dom != NULL && dom->dom_sockaddr_cmp != NULL)
383		return (*dom->dom_sockaddr_cmp)(sa1, sa2);
384
385	len = MIN(sa1->sa_len, sa2->sa_len);
386
387	if (dom == NULL || dom->dom_sa_cmplen == 0) {
388		if ((rc = memcmp(sa1, sa2, len)) != 0)
389			return rc;
390		return sa1->sa_len - sa2->sa_len;
391	}
392
393	if ((rc = memcmp((const char *)sa1 + dom->dom_sa_cmpofs,
394		         (const char *)sa2 + dom->dom_sa_cmpofs,
395			 MIN(dom->dom_sa_cmplen,
396			     len - MIN(len, dom->dom_sa_cmpofs)))) != 0)
397		return rc;
398
399	return MIN(dom->dom_sa_cmplen + dom->dom_sa_cmpofs, sa1->sa_len) -
400	       MIN(dom->dom_sa_cmplen + dom->dom_sa_cmpofs, sa2->sa_len);
401}
402
403struct sockaddr *
404sockaddr_dup(const struct sockaddr *src, int flags)
405{
406	struct sockaddr *dst;
407
408	if ((dst = sockaddr_alloc(src->sa_family, src->sa_len, flags)) == NULL)
409		return NULL;
410
411	return sockaddr_copy(dst, dst->sa_len, src);
412}
413
414void
415sockaddr_free(struct sockaddr *sa)
416{
417	free(sa, M_SOCKADDR);
418}
419
420static int
421sun_print(char *buf, size_t len, const void *v)
422{
423	const struct sockaddr_un *sun = v;
424	size_t plen;
425
426	KASSERT(sun->sun_len >= offsetof(struct sockaddr_un, sun_path[0]));
427	plen = sun->sun_len - offsetof(struct sockaddr_un, sun_path[0]);
428
429	len = MIN(len, plen);
430
431	return snprintf(buf, len, "%s", sun->sun_path);
432}
433
434int
435sockaddr_format(const struct sockaddr *sa, char *buf, size_t len)
436{
437	size_t plen = 0;
438
439	if (sa == NULL)
440		return strlcpy(buf, "(null)", len);
441
442	switch (sa->sa_family) {
443	case AF_LOCAL:
444		plen = strlcpy(buf, "unix: ", len);
445		break;
446	case AF_INET:
447		plen = strlcpy(buf, "inet: ", len);
448		break;
449	case AF_INET6:
450		plen = strlcpy(buf, "inet6: ", len);
451		break;
452	case AF_LINK:
453		plen = strlcpy(buf, "link: ", len);
454		break;
455	case AF_APPLETALK:
456		plen = strlcpy(buf, "atalk: ", len);
457		break;
458	default:
459		return snprintf(buf, len, "(unknown socket family %d)",
460		    (int)sa->sa_family);
461	}
462
463	buf += plen;
464	if (plen > len)
465		len = 0;
466	else
467		len -= plen;
468
469	switch (sa->sa_family) {
470	case AF_LOCAL:
471		return sun_print(buf, len, sa);
472	case AF_INET:
473		return sin_print(buf, len, sa);
474	case AF_INET6:
475		return sin6_print(buf, len, sa);
476	case AF_LINK:
477		return sdl_print(buf, len, sa);
478	case AF_APPLETALK:
479		return sat_print(buf, len, sa);
480	default:
481		panic("bad family %hhu", sa->sa_family);
482	}
483}
484
485/*
486 * sysctl helper to stuff PF_LOCAL pcbs into sysctl structures
487 */
488static void
489sysctl_dounpcb(struct kinfo_pcb *pcb, const struct socket *so)
490{
491	const bool allowaddr = get_expose_address(curproc);
492	struct unpcb *unp = sotounpcb(so);
493	struct sockaddr_un *un = unp->unp_addr;
494
495	memset(pcb, 0, sizeof(*pcb));
496
497	pcb->ki_family = so->so_proto->pr_domain->dom_family;
498	pcb->ki_type = so->so_proto->pr_type;
499	pcb->ki_protocol = so->so_proto->pr_protocol;
500	pcb->ki_pflags = unp->unp_flags;
501
502	COND_SET_VALUE(pcb->ki_pcbaddr, PTRTOUINT64(unp), allowaddr);
503	/* pcb->ki_ppcbaddr = unp has no ppcb... */
504	COND_SET_VALUE(pcb->ki_sockaddr, PTRTOUINT64(so), allowaddr);
505
506	pcb->ki_sostate = so->so_state;
507	/* pcb->ki_prstate = unp has no state... */
508
509	pcb->ki_rcvq = so->so_rcv.sb_cc;
510	pcb->ki_sndq = so->so_snd.sb_cc;
511
512	un = (struct sockaddr_un *)pcb->ki_spad;
513	/*
514	 * local domain sockets may bind without having a local
515	 * endpoint.  bleah!
516	 */
517	if (unp->unp_addr != NULL) {
518		/*
519		 * We've added one to sun_len when allocating to
520		 * hold terminating NUL which we want here.  See
521		 * makeun().
522		 */
523		memcpy(un, unp->unp_addr,
524		    uimin(sizeof(pcb->ki_spad), unp->unp_addr->sun_len + 1));
525	}
526	else {
527		un->sun_len = offsetof(struct sockaddr_un, sun_path);
528		un->sun_family = pcb->ki_family;
529	}
530	if (unp->unp_conn != NULL) {
531		un = (struct sockaddr_un *)pcb->ki_dpad;
532		if (unp->unp_conn->unp_addr != NULL) {
533			memcpy(un, unp->unp_conn->unp_addr,
534			    uimin(sizeof(pcb->ki_dpad), unp->unp_conn->unp_addr->sun_len + 1));
535		}
536		else {
537			un->sun_len = offsetof(struct sockaddr_un, sun_path);
538			un->sun_family = pcb->ki_family;
539		}
540	}
541
542	pcb->ki_inode = unp->unp_ino;
543	COND_SET_VALUE(pcb->ki_vnode, PTRTOUINT64(unp->unp_vnode), allowaddr);
544	COND_SET_VALUE(pcb->ki_conn, PTRTOUINT64(unp->unp_conn), allowaddr);
545	COND_SET_VALUE(pcb->ki_refs, PTRTOUINT64(unp->unp_refs), allowaddr);
546	COND_SET_VALUE(pcb->ki_nextref, PTRTOUINT64(unp->unp_nextref),
547	    allowaddr);
548}
549
550static int
551sysctl_unpcblist(SYSCTLFN_ARGS)
552{
553	struct file *fp, *np, *dfp;
554	struct socket *so;
555	struct kinfo_pcb pcb;
556	char *dp;
557	size_t len, needed, elem_size, out_size;
558	int error, elem_count, pf, type;
559
560	if (namelen == 1 && name[0] == CTL_QUERY)
561		return sysctl_query(SYSCTLFN_CALL(rnode));
562
563	if (namelen != 4)
564		return EINVAL;
565
566	if (oldp != NULL) {
567		len = *oldlenp;
568		elem_size = name[2];
569		elem_count = name[3];
570		if (elem_size != sizeof(pcb))
571			return EINVAL;
572	} else {
573		len = 0;
574		elem_size = sizeof(pcb);
575		elem_count = INT_MAX;
576	}
577	error = 0;
578	dp = oldp;
579	out_size = elem_size;
580	needed = 0;
581
582	if (name - oname != 4)
583		return EINVAL;
584
585	pf = oname[1];
586	type = oname[2];
587
588	/*
589	 * allocate dummy file descriptor to make position in list.
590	 */
591	sysctl_unlock();
592	if ((dfp = fgetdummy()) == NULL) {
593	 	sysctl_relock();
594		return ENOMEM;
595	}
596
597	/*
598	 * there's no "list" of local domain sockets, so we have
599	 * to walk the file list looking for them.  :-/
600	 */
601	mutex_enter(&filelist_lock);
602	LIST_FOREACH_SAFE(fp, &filehead, f_list, np) {
603		if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET ||
604		    fp->f_socket == NULL)
605			continue;
606		so = fp->f_socket;
607		if (so->so_type != type)
608			continue;
609		if (so->so_proto->pr_domain->dom_family != pf)
610			continue;
611		if (kauth_authorize_network(l->l_cred, KAUTH_NETWORK_SOCKET,
612		    KAUTH_REQ_NETWORK_SOCKET_CANSEE, so, NULL, NULL) != 0)
613			continue;
614		if (len >= elem_size && elem_count > 0) {
615			mutex_enter(&fp->f_lock);
616			/*
617			 * Do not add references, if the count reached 0.
618			 * Since the check above has been performed without
619			 * locking, it must be rechecked here as a concurrent
620			 * closef could have reduced it.
621			 */
622			if (fp->f_count == 0) {
623				mutex_exit(&fp->f_lock);
624				continue;
625			}
626			fp->f_count++;
627			mutex_exit(&fp->f_lock);
628			LIST_INSERT_AFTER(fp, dfp, f_list);
629			mutex_exit(&filelist_lock);
630			sysctl_dounpcb(&pcb, so);
631			error = copyout(&pcb, dp, out_size);
632			closef(fp);
633			mutex_enter(&filelist_lock);
634			np = LIST_NEXT(dfp, f_list);
635			LIST_REMOVE(dfp, f_list);
636			if (error)
637				break;
638			dp += elem_size;
639			len -= elem_size;
640		}
641		needed += elem_size;
642		if (elem_count > 0 && elem_count != INT_MAX)
643			elem_count--;
644	}
645	mutex_exit(&filelist_lock);
646	fputdummy(dfp);
647 	*oldlenp = needed;
648	if (oldp == NULL)
649		*oldlenp += PCB_SLOP * sizeof(struct kinfo_pcb);
650 	sysctl_relock();
651
652	return error;
653}
654
655static void
656sysctl_net_setup(void)
657{
658
659	KASSERT(domain_sysctllog == NULL);
660	sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
661		       CTLFLAG_PERMANENT,
662		       CTLTYPE_NODE, "local",
663		       SYSCTL_DESCR("PF_LOCAL related settings"),
664		       NULL, 0, NULL, 0,
665		       CTL_NET, PF_LOCAL, CTL_EOL);
666	sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
667		       CTLFLAG_PERMANENT,
668		       CTLTYPE_NODE, "stream",
669		       SYSCTL_DESCR("SOCK_STREAM settings"),
670		       NULL, 0, NULL, 0,
671		       CTL_NET, PF_LOCAL, SOCK_STREAM, CTL_EOL);
672	sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
673		       CTLFLAG_PERMANENT,
674		       CTLTYPE_NODE, "seqpacket",
675		       SYSCTL_DESCR("SOCK_SEQPACKET settings"),
676		       NULL, 0, NULL, 0,
677		       CTL_NET, PF_LOCAL, SOCK_SEQPACKET, CTL_EOL);
678	sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
679		       CTLFLAG_PERMANENT,
680		       CTLTYPE_NODE, "dgram",
681		       SYSCTL_DESCR("SOCK_DGRAM settings"),
682		       NULL, 0, NULL, 0,
683		       CTL_NET, PF_LOCAL, SOCK_DGRAM, CTL_EOL);
684
685	sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
686		       CTLFLAG_PERMANENT,
687		       CTLTYPE_STRUCT, "pcblist",
688		       SYSCTL_DESCR("SOCK_STREAM protocol control block list"),
689		       sysctl_unpcblist, 0, NULL, 0,
690		       CTL_NET, PF_LOCAL, SOCK_STREAM, CTL_CREATE, CTL_EOL);
691	sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
692		       CTLFLAG_PERMANENT,
693		       CTLTYPE_STRUCT, "pcblist",
694		       SYSCTL_DESCR("SOCK_SEQPACKET protocol control "
695				    "block list"),
696		       sysctl_unpcblist, 0, NULL, 0,
697		       CTL_NET, PF_LOCAL, SOCK_SEQPACKET, CTL_CREATE, CTL_EOL);
698	sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
699		       CTLFLAG_PERMANENT,
700		       CTLTYPE_STRUCT, "pcblist",
701		       SYSCTL_DESCR("SOCK_DGRAM protocol control block list"),
702		       sysctl_unpcblist, 0, NULL, 0,
703		       CTL_NET, PF_LOCAL, SOCK_DGRAM, CTL_CREATE, CTL_EOL);
704}
705
706void
707pfctlinput(int cmd, const struct sockaddr *sa)
708{
709	struct domain *dp;
710	const struct protosw *pr;
711
712	DOMAIN_FOREACH(dp) {
713		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
714			if (pr->pr_ctlinput != NULL)
715				(*pr->pr_ctlinput)(cmd, sa, NULL);
716		}
717	}
718}
719
720void
721pfctlinput2(int cmd, const struct sockaddr *sa, void *ctlparam)
722{
723	struct domain *dp;
724	const struct protosw *pr;
725
726	if (sa == NULL)
727		return;
728
729	DOMAIN_FOREACH(dp) {
730		/*
731		 * the check must be made by xx_ctlinput() anyways, to
732		 * make sure we use data item pointed to by ctlparam in
733		 * correct way.  the following check is made just for safety.
734		 */
735		if (dp->dom_family != sa->sa_family)
736			continue;
737
738		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
739			if (pr->pr_ctlinput != NULL)
740				(*pr->pr_ctlinput)(cmd, sa, ctlparam);
741		}
742	}
743}
744
745void
746pfslowtimo(void *arg)
747{
748	struct domain *dp;
749	const struct protosw *pr;
750
751	pfslowtimo_now++;
752
753	DOMAIN_FOREACH(dp) {
754		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
755			if (pr->pr_slowtimo)
756				(*pr->pr_slowtimo)();
757	}
758	callout_schedule(&pfslowtimo_ch, hz / PR_SLOWHZ);
759}
760
761void
762pffasttimo(void *arg)
763{
764	struct domain *dp;
765	const struct protosw *pr;
766
767	pffasttimo_now++;
768
769	DOMAIN_FOREACH(dp) {
770		for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
771			if (pr->pr_fasttimo)
772				(*pr->pr_fasttimo)();
773	}
774	callout_schedule(&pffasttimo_ch, hz / PR_FASTHZ);
775}
776