1 /* $NetBSD: uipc_domain.c,v 1.112 2024/12/07 02:31:14 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 1.112 2024/12/07 02:31:14 riastradh Exp $");
36
37 #include <sys/param.h>
38 #include <sys/types.h>
39
40 #include <sys/callout.h>
41 #include <sys/domain.h>
42 #include <sys/file.h>
43 #include <sys/filedesc.h>
44 #include <sys/kauth.h>
45 #include <sys/kernel.h>
46 #include <sys/mbuf.h>
47 #include <sys/proc.h>
48 #include <sys/protosw.h>
49 #include <sys/queue.h>
50 #include <sys/sdt.h>
51 #include <sys/socket.h>
52 #include <sys/socketvar.h>
53 #include <sys/sysctl.h>
54 #include <sys/systm.h>
55 #include <sys/time.h>
56 #include <sys/un.h>
57 #include <sys/unpcb.h>
58
59 #include <net/if_dl.h>
60 #include <netatalk/at.h>
61 #include <netinet/in.h>
62
63 MALLOC_DECLARE(M_SOCKADDR);
64
65 MALLOC_DEFINE(M_SOCKADDR, "sockaddr", "socket endpoints");
66
67 void pffasttimo(void *);
68 void pfslowtimo(void *);
69
70 struct domainhead domains = STAILQ_HEAD_INITIALIZER(domains);
71 static struct domain *domain_array[AF_MAX];
72
73 callout_t pffasttimo_ch, pfslowtimo_ch;
74
75 /*
76 * Current time values for fast and slow timeouts. We can use u_int
77 * relatively safely. The fast timer will roll over in 27 years and
78 * the slow timer in 68 years.
79 */
80 u_int pfslowtimo_now;
81 u_int pffasttimo_now;
82
83 static struct sysctllog *domain_sysctllog;
84 static void sysctl_net_setup(void);
85
86 /* ensure successful linkage even without any domains in link sets */
87 static struct domain domain_dummy;
88 __link_set_add_rodata(domains,domain_dummy);
89
90 static void
domain_init_timers(void)91 domain_init_timers(void)
92 {
93
94 callout_init(&pffasttimo_ch, CALLOUT_MPSAFE);
95 callout_init(&pfslowtimo_ch, CALLOUT_MPSAFE);
96
97 callout_reset(&pffasttimo_ch, 1, pffasttimo, NULL);
98 callout_reset(&pfslowtimo_ch, 1, pfslowtimo, NULL);
99 }
100
101 void
domaininit(bool attach)102 domaininit(bool attach)
103 {
104 __link_set_decl(domains, struct domain);
105 struct domain * const * dpp;
106 struct domain *rt_domain = NULL;
107
108 sysctl_net_setup();
109
110 /*
111 * Add all of the domains. Make sure the PF_ROUTE
112 * domain is added last.
113 */
114 if (attach) {
115 __link_set_foreach(dpp, domains) {
116 if (*dpp == &domain_dummy)
117 continue;
118 if ((*dpp)->dom_family == PF_ROUTE)
119 rt_domain = *dpp;
120 else
121 domain_attach(*dpp);
122 }
123 if (rt_domain)
124 domain_attach(rt_domain);
125
126 domain_init_timers();
127 }
128 }
129
130 /*
131 * Must be called only if domaininit has been called with false and
132 * after all domains have been attached.
133 */
134 void
domaininit_post(void)135 domaininit_post(void)
136 {
137
138 domain_init_timers();
139 }
140
141 void
domain_attach(struct domain * dp)142 domain_attach(struct domain *dp)
143 {
144 const struct protosw *pr;
145
146 STAILQ_INSERT_TAIL(&domains, dp, dom_link);
147 if (dp->dom_family < __arraycount(domain_array))
148 domain_array[dp->dom_family] = dp;
149
150 if (dp->dom_init)
151 (*dp->dom_init)();
152
153 #ifdef MBUFTRACE
154 if (dp->dom_mowner.mo_name[0] == '\0') {
155 strncpy(dp->dom_mowner.mo_name, dp->dom_name,
156 sizeof(dp->dom_mowner.mo_name));
157 MOWNER_ATTACH(&dp->dom_mowner);
158 }
159 #endif
160 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
161 if (pr->pr_init)
162 (*pr->pr_init)();
163 }
164
165 if (max_linkhdr < 16) /* XXX */
166 max_linkhdr = 16;
167 max_hdr = max_linkhdr + max_protohdr;
168 max_datalen = MHLEN - max_hdr;
169 }
170
171 struct domain *
pffinddomain(int family)172 pffinddomain(int family)
173 {
174 struct domain *dp;
175
176 if (family < __arraycount(domain_array) && domain_array[family] != NULL)
177 return domain_array[family];
178
179 DOMAIN_FOREACH(dp)
180 if (dp->dom_family == family)
181 return dp;
182 return NULL;
183 }
184
185 const struct protosw *
pffindtype(int family,int type)186 pffindtype(int family, int type)
187 {
188 struct domain *dp;
189 const struct protosw *pr;
190
191 dp = pffinddomain(family);
192 if (dp == NULL)
193 return NULL;
194
195 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
196 if (pr->pr_type && pr->pr_type == type)
197 return pr;
198
199 return NULL;
200 }
201
202 const struct protosw *
pffindproto(int family,int protocol,int type)203 pffindproto(int family, int protocol, int type)
204 {
205 struct domain *dp;
206 const struct protosw *pr;
207 const struct protosw *maybe = NULL;
208
209 if (family == 0)
210 return NULL;
211
212 dp = pffinddomain(family);
213 if (dp == NULL)
214 return NULL;
215
216 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
217 if ((pr->pr_protocol == protocol) && (pr->pr_type == type))
218 return pr;
219
220 if (type == SOCK_RAW && pr->pr_type == SOCK_RAW &&
221 pr->pr_protocol == 0 && maybe == NULL)
222 maybe = pr;
223 }
224 return maybe;
225 }
226
227 void *
sockaddr_addr(struct sockaddr * sa,socklen_t * slenp)228 sockaddr_addr(struct sockaddr *sa, socklen_t *slenp)
229 {
230 const struct domain *dom;
231
232 if ((dom = pffinddomain(sa->sa_family)) == NULL ||
233 dom->dom_sockaddr_addr == NULL)
234 return NULL;
235
236 return (*dom->dom_sockaddr_addr)(sa, slenp);
237 }
238
239 const void *
sockaddr_const_addr(const struct sockaddr * sa,socklen_t * slenp)240 sockaddr_const_addr(const struct sockaddr *sa, socklen_t *slenp)
241 {
242 const struct domain *dom;
243
244 if ((dom = pffinddomain(sa->sa_family)) == NULL ||
245 dom->dom_sockaddr_const_addr == NULL)
246 return NULL;
247
248 return (*dom->dom_sockaddr_const_addr)(sa, slenp);
249 }
250
251 const struct sockaddr *
sockaddr_any_by_family(sa_family_t family)252 sockaddr_any_by_family(sa_family_t family)
253 {
254 const struct domain *dom;
255
256 if ((dom = pffinddomain(family)) == NULL)
257 return NULL;
258
259 return dom->dom_sa_any;
260 }
261
262 const struct sockaddr *
sockaddr_any(const struct sockaddr * sa)263 sockaddr_any(const struct sockaddr *sa)
264 {
265 return sockaddr_any_by_family(sa->sa_family);
266 }
267
268 const void *
sockaddr_anyaddr(const struct sockaddr * sa,socklen_t * slenp)269 sockaddr_anyaddr(const struct sockaddr *sa, socklen_t *slenp)
270 {
271 const struct sockaddr *any;
272
273 if ((any = sockaddr_any(sa)) == NULL)
274 return NULL;
275
276 return sockaddr_const_addr(any, slenp);
277 }
278
279 socklen_t
sockaddr_getsize_by_family(sa_family_t af)280 sockaddr_getsize_by_family(sa_family_t af)
281 {
282 switch (af) {
283 case AF_INET:
284 return sizeof(struct sockaddr_in);
285 case AF_INET6:
286 return sizeof(struct sockaddr_in6);
287 case AF_UNIX:
288 return sizeof(struct sockaddr_un);
289 case AF_LINK:
290 return sizeof(struct sockaddr_dl);
291 case AF_APPLETALK:
292 return sizeof(struct sockaddr_at);
293 default:
294 #ifdef DIAGNOSTIC
295 printf("%s: (%s:%u:%u) Unhandled address family=%hhu\n",
296 __func__, curlwp->l_proc->p_comm,
297 curlwp->l_proc->p_pid, curlwp->l_lid, af);
298 #endif
299 return 0;
300 }
301 }
302
303 #ifdef DIAGNOSTIC
304 static void
sockaddr_checklen(const struct sockaddr * sa)305 sockaddr_checklen(const struct sockaddr *sa)
306 {
307 // Can't tell how much was allocated, if it was allocated.
308 if (sa->sa_family == AF_LINK)
309 return;
310
311 socklen_t len = sockaddr_getsize_by_family(sa->sa_family);
312 if (len == 0 || len == sa->sa_len)
313 return;
314
315 char buf[512];
316 sockaddr_format(sa, buf, sizeof(buf));
317 printf("%s: %p bad len af=%hhu socklen=%hhu len=%u [%s]\n",
318 __func__, sa, sa->sa_family, sa->sa_len, (unsigned)len, buf);
319 }
320 #else
321 #define sockaddr_checklen(sa) ((void)0)
322 #endif
323
324 struct sockaddr *
sockaddr_alloc(sa_family_t af,socklen_t socklen,int flags)325 sockaddr_alloc(sa_family_t af, socklen_t socklen, int flags)
326 {
327 struct sockaddr *sa;
328 socklen_t reallen = MAX(socklen, offsetof(struct sockaddr, sa_data[0]));
329
330 #ifdef DIAGNOSTIC
331 /*
332 * sockaddr_checklen passes sa to sockaddr_format which
333 * requires it to be fully initialized.
334 *
335 * XXX This should be factored better.
336 */
337 flags |= M_ZERO;
338 #endif
339 if ((sa = malloc(reallen, M_SOCKADDR, flags)) == NULL)
340 return NULL;
341
342 sa->sa_family = af;
343 sa->sa_len = reallen;
344 sockaddr_checklen(sa);
345 return sa;
346 }
347
348 struct sockaddr *
sockaddr_copy(struct sockaddr * dst,socklen_t socklen,const struct sockaddr * src)349 sockaddr_copy(struct sockaddr *dst, socklen_t socklen,
350 const struct sockaddr *src)
351 {
352 if (__predict_false(socklen < src->sa_len)) {
353 panic("%s: source too long, %d < %d bytes", __func__, socklen,
354 src->sa_len);
355 }
356 sockaddr_checklen(src);
357 return memcpy(dst, src, src->sa_len);
358 }
359
360 struct sockaddr *
sockaddr_externalize(struct sockaddr * dst,socklen_t socklen,const struct sockaddr * src)361 sockaddr_externalize(struct sockaddr *dst, socklen_t socklen,
362 const struct sockaddr *src)
363 {
364 struct domain *dom;
365
366 dom = pffinddomain(src->sa_family);
367
368 if (dom != NULL && dom->dom_sockaddr_externalize != NULL)
369 return (*dom->dom_sockaddr_externalize)(dst, socklen, src);
370
371 return sockaddr_copy(dst, socklen, src);
372 }
373
374 int
sockaddr_cmp(const struct sockaddr * sa1,const struct sockaddr * sa2)375 sockaddr_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2)
376 {
377 int len, rc;
378 struct domain *dom;
379
380 if (sa1->sa_family != sa2->sa_family)
381 return sa1->sa_family - sa2->sa_family;
382
383 dom = pffinddomain(sa1->sa_family);
384
385 if (dom != NULL && dom->dom_sockaddr_cmp != NULL)
386 return (*dom->dom_sockaddr_cmp)(sa1, sa2);
387
388 len = MIN(sa1->sa_len, sa2->sa_len);
389
390 if (dom == NULL || dom->dom_sa_cmplen == 0) {
391 if ((rc = memcmp(sa1, sa2, len)) != 0)
392 return rc;
393 return sa1->sa_len - sa2->sa_len;
394 }
395
396 if ((rc = memcmp((const char *)sa1 + dom->dom_sa_cmpofs,
397 (const char *)sa2 + dom->dom_sa_cmpofs,
398 MIN(dom->dom_sa_cmplen,
399 len - MIN(len, dom->dom_sa_cmpofs)))) != 0)
400 return rc;
401
402 return MIN(dom->dom_sa_cmplen + dom->dom_sa_cmpofs, sa1->sa_len) -
403 MIN(dom->dom_sa_cmplen + dom->dom_sa_cmpofs, sa2->sa_len);
404 }
405
406 struct sockaddr *
sockaddr_dup(const struct sockaddr * src,int flags)407 sockaddr_dup(const struct sockaddr *src, int flags)
408 {
409 struct sockaddr *dst;
410
411 if ((dst = sockaddr_alloc(src->sa_family, src->sa_len, flags)) == NULL)
412 return NULL;
413
414 return sockaddr_copy(dst, dst->sa_len, src);
415 }
416
417 void
sockaddr_free(struct sockaddr * sa)418 sockaddr_free(struct sockaddr *sa)
419 {
420 free(sa, M_SOCKADDR);
421 }
422
423 static int
sun_print(char * buf,size_t len,const void * v)424 sun_print(char *buf, size_t len, const void *v)
425 {
426 const struct sockaddr_un *sun = v;
427 size_t plen;
428
429 KASSERT(sun->sun_len >= offsetof(struct sockaddr_un, sun_path[0]));
430 plen = sun->sun_len - offsetof(struct sockaddr_un, sun_path[0]);
431
432 len = MIN(len, plen);
433
434 return snprintf(buf, len, "%s", sun->sun_path);
435 }
436
437 int
sockaddr_format(const struct sockaddr * sa,char * buf,size_t len)438 sockaddr_format(const struct sockaddr *sa, char *buf, size_t len)
439 {
440 size_t plen = 0;
441
442 if (sa == NULL)
443 return strlcpy(buf, "(null)", len);
444
445 switch (sa->sa_family) {
446 case AF_LOCAL:
447 plen = strlcpy(buf, "unix: ", len);
448 break;
449 case AF_INET:
450 plen = strlcpy(buf, "inet: ", len);
451 break;
452 case AF_INET6:
453 plen = strlcpy(buf, "inet6: ", len);
454 break;
455 case AF_LINK:
456 plen = strlcpy(buf, "link: ", len);
457 break;
458 case AF_APPLETALK:
459 plen = strlcpy(buf, "atalk: ", len);
460 break;
461 default:
462 return snprintf(buf, len, "(unknown socket family %d)",
463 (int)sa->sa_family);
464 }
465
466 buf += plen;
467 if (plen > len)
468 len = 0;
469 else
470 len -= plen;
471
472 switch (sa->sa_family) {
473 case AF_LOCAL:
474 return sun_print(buf, len, sa);
475 case AF_INET:
476 return sin_print(buf, len, sa);
477 case AF_INET6:
478 return sin6_print(buf, len, sa);
479 case AF_LINK:
480 return sdl_print(buf, len, sa);
481 case AF_APPLETALK:
482 return sat_print(buf, len, sa);
483 default:
484 panic("bad family %hhu", sa->sa_family);
485 }
486 }
487
488 /*
489 * sysctl helper to stuff PF_LOCAL pcbs into sysctl structures
490 */
491 static void
sysctl_dounpcb(struct kinfo_pcb * pcb,const struct socket * so)492 sysctl_dounpcb(struct kinfo_pcb *pcb, const struct socket *so)
493 {
494 const bool allowaddr = get_expose_address(curproc);
495 struct unpcb *unp = sotounpcb(so);
496 struct sockaddr_un *un = unp->unp_addr;
497
498 memset(pcb, 0, sizeof(*pcb));
499
500 pcb->ki_family = so->so_proto->pr_domain->dom_family;
501 pcb->ki_type = so->so_proto->pr_type;
502 pcb->ki_protocol = so->so_proto->pr_protocol;
503 pcb->ki_pflags = unp->unp_flags;
504
505 COND_SET_VALUE(pcb->ki_pcbaddr, PTRTOUINT64(unp), allowaddr);
506 /* pcb->ki_ppcbaddr = unp has no ppcb... */
507 COND_SET_VALUE(pcb->ki_sockaddr, PTRTOUINT64(so), allowaddr);
508
509 pcb->ki_sostate = so->so_state;
510 /* pcb->ki_prstate = unp has no state... */
511
512 pcb->ki_rcvq = so->so_rcv.sb_cc;
513 pcb->ki_sndq = so->so_snd.sb_cc;
514
515 un = (struct sockaddr_un *)pcb->ki_spad;
516 /*
517 * local domain sockets may bind without having a local
518 * endpoint. bleah!
519 */
520 if (unp->unp_addr != NULL) {
521 /*
522 * We've added one to sun_len when allocating to
523 * hold terminating NUL which we want here. See
524 * makeun().
525 */
526 memcpy(un, unp->unp_addr,
527 uimin(sizeof(pcb->ki_spad), unp->unp_addr->sun_len + 1));
528 }
529 else {
530 un->sun_len = offsetof(struct sockaddr_un, sun_path);
531 un->sun_family = pcb->ki_family;
532 }
533 if (unp->unp_conn != NULL) {
534 un = (struct sockaddr_un *)pcb->ki_dpad;
535 if (unp->unp_conn->unp_addr != NULL) {
536 memcpy(un, unp->unp_conn->unp_addr,
537 uimin(sizeof(pcb->ki_dpad), unp->unp_conn->unp_addr->sun_len + 1));
538 }
539 else {
540 un->sun_len = offsetof(struct sockaddr_un, sun_path);
541 un->sun_family = pcb->ki_family;
542 }
543 }
544
545 pcb->ki_inode = unp->unp_ino;
546 COND_SET_VALUE(pcb->ki_vnode, PTRTOUINT64(unp->unp_vnode), allowaddr);
547 COND_SET_VALUE(pcb->ki_conn, PTRTOUINT64(unp->unp_conn), allowaddr);
548 COND_SET_VALUE(pcb->ki_refs, PTRTOUINT64(unp->unp_refs), allowaddr);
549 COND_SET_VALUE(pcb->ki_nextref, PTRTOUINT64(unp->unp_nextref),
550 allowaddr);
551 }
552
553 static int
sysctl_unpcblist(SYSCTLFN_ARGS)554 sysctl_unpcblist(SYSCTLFN_ARGS)
555 {
556 struct file *fp, *np, *dfp;
557 struct socket *so;
558 struct kinfo_pcb pcb;
559 char *dp;
560 size_t len, needed, elem_size, out_size;
561 int error, elem_count, pf, type;
562
563 if (namelen == 1 && name[0] == CTL_QUERY)
564 return sysctl_query(SYSCTLFN_CALL(rnode));
565
566 if (namelen != 4)
567 return SET_ERROR(EINVAL);
568
569 if (oldp != NULL) {
570 len = *oldlenp;
571 elem_size = name[2];
572 elem_count = name[3];
573 if (elem_size != sizeof(pcb))
574 return SET_ERROR(EINVAL);
575 } else {
576 len = 0;
577 elem_size = sizeof(pcb);
578 elem_count = INT_MAX;
579 }
580 error = 0;
581 dp = oldp;
582 out_size = elem_size;
583 needed = 0;
584
585 if (name - oname != 4)
586 return SET_ERROR(EINVAL);
587
588 pf = oname[1];
589 type = oname[2];
590
591 /*
592 * allocate dummy file descriptor to make position in list.
593 */
594 sysctl_unlock();
595 if ((dfp = fgetdummy()) == NULL) {
596 sysctl_relock();
597 return SET_ERROR(ENOMEM);
598 }
599
600 /*
601 * there's no "list" of local domain sockets, so we have
602 * to walk the file list looking for them. :-/
603 */
604 mutex_enter(&filelist_lock);
605 LIST_FOREACH_SAFE(fp, &filehead, f_list, np) {
606 if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET ||
607 fp->f_socket == NULL)
608 continue;
609 so = fp->f_socket;
610 if (so->so_type != type)
611 continue;
612 if (so->so_proto->pr_domain->dom_family != pf)
613 continue;
614 if (kauth_authorize_network(l->l_cred, KAUTH_NETWORK_SOCKET,
615 KAUTH_REQ_NETWORK_SOCKET_CANSEE, so, NULL, NULL) != 0)
616 continue;
617 if (len >= elem_size && elem_count > 0) {
618 mutex_enter(&fp->f_lock);
619 /*
620 * Do not add references, if the count reached 0.
621 * Since the check above has been performed without
622 * locking, it must be rechecked here as a concurrent
623 * closef could have reduced it.
624 */
625 if (fp->f_count == 0) {
626 mutex_exit(&fp->f_lock);
627 continue;
628 }
629 fp->f_count++;
630 mutex_exit(&fp->f_lock);
631 LIST_INSERT_AFTER(fp, dfp, f_list);
632 mutex_exit(&filelist_lock);
633 sysctl_dounpcb(&pcb, so);
634 error = copyout(&pcb, dp, out_size);
635 closef(fp);
636 mutex_enter(&filelist_lock);
637 np = LIST_NEXT(dfp, f_list);
638 LIST_REMOVE(dfp, f_list);
639 if (error)
640 break;
641 dp += elem_size;
642 len -= elem_size;
643 }
644 needed += elem_size;
645 if (elem_count > 0 && elem_count != INT_MAX)
646 elem_count--;
647 }
648 mutex_exit(&filelist_lock);
649 fputdummy(dfp);
650 *oldlenp = needed;
651 if (oldp == NULL)
652 *oldlenp += PCB_SLOP * sizeof(struct kinfo_pcb);
653 sysctl_relock();
654
655 return error;
656 }
657
658 static void
sysctl_net_setup(void)659 sysctl_net_setup(void)
660 {
661
662 KASSERT(domain_sysctllog == NULL);
663 sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
664 CTLFLAG_PERMANENT,
665 CTLTYPE_NODE, "local",
666 SYSCTL_DESCR("PF_LOCAL related settings"),
667 NULL, 0, NULL, 0,
668 CTL_NET, PF_LOCAL, CTL_EOL);
669 sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
670 CTLFLAG_PERMANENT,
671 CTLTYPE_NODE, "stream",
672 SYSCTL_DESCR("SOCK_STREAM settings"),
673 NULL, 0, NULL, 0,
674 CTL_NET, PF_LOCAL, SOCK_STREAM, CTL_EOL);
675 sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
676 CTLFLAG_PERMANENT,
677 CTLTYPE_NODE, "seqpacket",
678 SYSCTL_DESCR("SOCK_SEQPACKET settings"),
679 NULL, 0, NULL, 0,
680 CTL_NET, PF_LOCAL, SOCK_SEQPACKET, CTL_EOL);
681 sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
682 CTLFLAG_PERMANENT,
683 CTLTYPE_NODE, "dgram",
684 SYSCTL_DESCR("SOCK_DGRAM settings"),
685 NULL, 0, NULL, 0,
686 CTL_NET, PF_LOCAL, SOCK_DGRAM, CTL_EOL);
687
688 sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
689 CTLFLAG_PERMANENT,
690 CTLTYPE_STRUCT, "pcblist",
691 SYSCTL_DESCR("SOCK_STREAM protocol control block list"),
692 sysctl_unpcblist, 0, NULL, 0,
693 CTL_NET, PF_LOCAL, SOCK_STREAM, CTL_CREATE, CTL_EOL);
694 sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
695 CTLFLAG_PERMANENT,
696 CTLTYPE_STRUCT, "pcblist",
697 SYSCTL_DESCR("SOCK_SEQPACKET protocol control "
698 "block list"),
699 sysctl_unpcblist, 0, NULL, 0,
700 CTL_NET, PF_LOCAL, SOCK_SEQPACKET, CTL_CREATE, CTL_EOL);
701 sysctl_createv(&domain_sysctllog, 0, NULL, NULL,
702 CTLFLAG_PERMANENT,
703 CTLTYPE_STRUCT, "pcblist",
704 SYSCTL_DESCR("SOCK_DGRAM protocol control block list"),
705 sysctl_unpcblist, 0, NULL, 0,
706 CTL_NET, PF_LOCAL, SOCK_DGRAM, CTL_CREATE, CTL_EOL);
707 }
708
709 void
pfctlinput(int cmd,const struct sockaddr * sa)710 pfctlinput(int cmd, const struct sockaddr *sa)
711 {
712 struct domain *dp;
713 const struct protosw *pr;
714
715 DOMAIN_FOREACH(dp) {
716 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
717 if (pr->pr_ctlinput != NULL)
718 (*pr->pr_ctlinput)(cmd, sa, NULL);
719 }
720 }
721 }
722
723 void
pfctlinput2(int cmd,const struct sockaddr * sa,void * ctlparam)724 pfctlinput2(int cmd, const struct sockaddr *sa, void *ctlparam)
725 {
726 struct domain *dp;
727 const struct protosw *pr;
728
729 if (sa == NULL)
730 return;
731
732 DOMAIN_FOREACH(dp) {
733 /*
734 * the check must be made by xx_ctlinput() anyways, to
735 * make sure we use data item pointed to by ctlparam in
736 * correct way. the following check is made just for safety.
737 */
738 if (dp->dom_family != sa->sa_family)
739 continue;
740
741 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) {
742 if (pr->pr_ctlinput != NULL)
743 (*pr->pr_ctlinput)(cmd, sa, ctlparam);
744 }
745 }
746 }
747
748 void
pfslowtimo(void * arg)749 pfslowtimo(void *arg)
750 {
751 struct domain *dp;
752 const struct protosw *pr;
753
754 pfslowtimo_now++;
755
756 DOMAIN_FOREACH(dp) {
757 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
758 if (pr->pr_slowtimo)
759 (*pr->pr_slowtimo)();
760 }
761 callout_schedule(&pfslowtimo_ch, hz / PR_SLOWHZ);
762 }
763
764 void
pffasttimo(void * arg)765 pffasttimo(void *arg)
766 {
767 struct domain *dp;
768 const struct protosw *pr;
769
770 pffasttimo_now++;
771
772 DOMAIN_FOREACH(dp) {
773 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++)
774 if (pr->pr_fasttimo)
775 (*pr->pr_fasttimo)();
776 }
777 callout_schedule(&pffasttimo_ch, hz / PR_FASTHZ);
778 }
779