1 /* $NetBSD: uipc_domain.c,v 1.101 2018/01/10 02:50:26 ozaki-r 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 1.101 2018/01/10 02:50:26 ozaki-r 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 60 MALLOC_DECLARE(M_SOCKADDR); 61 62 MALLOC_DEFINE(M_SOCKADDR, "sockaddr", "socket endpoints"); 63 64 void pffasttimo(void *); 65 void pfslowtimo(void *); 66 67 struct domainhead domains = STAILQ_HEAD_INITIALIZER(domains); 68 static struct domain *domain_array[AF_MAX]; 69 70 callout_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 */ 77 u_int pfslowtimo_now; 78 u_int pffasttimo_now; 79 80 static struct sysctllog *domain_sysctllog; 81 static void sysctl_net_setup(void); 82 83 /* ensure successful linkage even without any domains in link sets */ 84 static struct domain domain_dummy; 85 __link_set_add_rodata(domains,domain_dummy); 86 87 static void 88 domain_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 98 void 99 domaininit(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 */ 131 void 132 domaininit_post(void) 133 { 134 135 domain_init_timers(); 136 } 137 138 void 139 domain_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 } 167 168 struct domain * 169 pffinddomain(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 } 181 182 const struct protosw * 183 pffindtype(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 } 198 199 const struct protosw * 200 pffindproto(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 } 223 224 void * 225 sockaddr_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 } 235 236 const void * 237 sockaddr_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 } 247 248 const struct sockaddr * 249 sockaddr_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 } 258 259 const struct sockaddr * 260 sockaddr_any(const struct sockaddr *sa) 261 { 262 return sockaddr_any_by_family(sa->sa_family); 263 } 264 265 const void * 266 sockaddr_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 } 275 276 socklen_t 277 sockaddr_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: Unhandled address family=%hhu\n", __func__, af); 293 #endif 294 return 0; 295 } 296 } 297 298 #ifdef DIAGNOSTIC 299 static void 300 sockaddr_checklen(const struct sockaddr *sa) 301 { 302 // Can't tell how much was allocated, if it was allocated. 303 if (sa->sa_family == AF_LINK) 304 return; 305 306 socklen_t len = sockaddr_getsize_by_family(sa->sa_family); 307 if (len == 0 || len == sa->sa_len) 308 return; 309 310 char buf[512]; 311 sockaddr_format(sa, buf, sizeof(buf)); 312 printf("%s: %p bad len af=%hhu socklen=%hhu len=%u [%s]\n", 313 __func__, sa, sa->sa_family, sa->sa_len, (unsigned)len, buf); 314 } 315 #else 316 #define sockaddr_checklen(sa) ((void)0) 317 #endif 318 319 struct sockaddr * 320 sockaddr_alloc(sa_family_t af, socklen_t socklen, int flags) 321 { 322 struct sockaddr *sa; 323 socklen_t reallen = MAX(socklen, offsetof(struct sockaddr, sa_data[0])); 324 325 if ((sa = malloc(reallen, M_SOCKADDR, flags)) == NULL) 326 return NULL; 327 328 sa->sa_family = af; 329 sa->sa_len = reallen; 330 sockaddr_checklen(sa); 331 return sa; 332 } 333 334 struct sockaddr * 335 sockaddr_copy(struct sockaddr *dst, socklen_t socklen, 336 const struct sockaddr *src) 337 { 338 if (__predict_false(socklen < src->sa_len)) { 339 panic("%s: source too long, %d < %d bytes", __func__, socklen, 340 src->sa_len); 341 } 342 sockaddr_checklen(src); 343 return memcpy(dst, src, src->sa_len); 344 } 345 346 struct sockaddr * 347 sockaddr_externalize(struct sockaddr *dst, socklen_t socklen, 348 const struct sockaddr *src) 349 { 350 struct domain *dom; 351 352 dom = pffinddomain(src->sa_family); 353 354 if (dom != NULL && dom->dom_sockaddr_externalize != NULL) 355 return (*dom->dom_sockaddr_externalize)(dst, socklen, src); 356 357 return sockaddr_copy(dst, socklen, src); 358 } 359 360 int 361 sockaddr_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2) 362 { 363 int len, rc; 364 struct domain *dom; 365 366 if (sa1->sa_family != sa2->sa_family) 367 return sa1->sa_family - sa2->sa_family; 368 369 dom = pffinddomain(sa1->sa_family); 370 371 if (dom != NULL && dom->dom_sockaddr_cmp != NULL) 372 return (*dom->dom_sockaddr_cmp)(sa1, sa2); 373 374 len = MIN(sa1->sa_len, sa2->sa_len); 375 376 if (dom == NULL || dom->dom_sa_cmplen == 0) { 377 if ((rc = memcmp(sa1, sa2, len)) != 0) 378 return rc; 379 return sa1->sa_len - sa2->sa_len; 380 } 381 382 if ((rc = memcmp((const char *)sa1 + dom->dom_sa_cmpofs, 383 (const char *)sa2 + dom->dom_sa_cmpofs, 384 MIN(dom->dom_sa_cmplen, 385 len - MIN(len, dom->dom_sa_cmpofs)))) != 0) 386 return rc; 387 388 return MIN(dom->dom_sa_cmplen + dom->dom_sa_cmpofs, sa1->sa_len) - 389 MIN(dom->dom_sa_cmplen + dom->dom_sa_cmpofs, sa2->sa_len); 390 } 391 392 struct sockaddr * 393 sockaddr_dup(const struct sockaddr *src, int flags) 394 { 395 struct sockaddr *dst; 396 397 if ((dst = sockaddr_alloc(src->sa_family, src->sa_len, flags)) == NULL) 398 return NULL; 399 400 return sockaddr_copy(dst, dst->sa_len, src); 401 } 402 403 void 404 sockaddr_free(struct sockaddr *sa) 405 { 406 free(sa, M_SOCKADDR); 407 } 408 409 static int 410 sun_print(char *buf, size_t len, const void *v) 411 { 412 const struct sockaddr_un *sun = v; 413 return snprintf(buf, len, "%s", sun->sun_path); 414 } 415 416 int 417 sockaddr_format(const struct sockaddr *sa, char *buf, size_t len) 418 { 419 size_t plen = 0; 420 421 if (sa == NULL) 422 return strlcpy(buf, "(null)", len); 423 424 switch (sa->sa_family) { 425 case AF_LOCAL: 426 plen = strlcpy(buf, "unix: ", len); 427 break; 428 case AF_INET: 429 plen = strlcpy(buf, "inet: ", len); 430 break; 431 case AF_INET6: 432 plen = strlcpy(buf, "inet6: ", len); 433 break; 434 case AF_LINK: 435 plen = strlcpy(buf, "link: ", len); 436 break; 437 case AF_APPLETALK: 438 plen = strlcpy(buf, "atalk: ", len); 439 break; 440 default: 441 return snprintf(buf, len, "(unknown socket family %d)", 442 (int)sa->sa_family); 443 } 444 445 buf += plen; 446 if (plen > len) 447 len = 0; 448 else 449 len -= plen; 450 451 switch (sa->sa_family) { 452 case AF_LOCAL: 453 return sun_print(buf, len, sa); 454 case AF_INET: 455 return sin_print(buf, len, sa); 456 case AF_INET6: 457 return sin6_print(buf, len, sa); 458 case AF_LINK: 459 return sdl_print(buf, len, sa); 460 case AF_APPLETALK: 461 return sat_print(buf, len, sa); 462 default: 463 panic("bad family %hhu", sa->sa_family); 464 } 465 } 466 467 /* 468 * sysctl helper to stuff PF_LOCAL pcbs into sysctl structures 469 */ 470 static void 471 sysctl_dounpcb(struct kinfo_pcb *pcb, const struct socket *so) 472 { 473 struct unpcb *unp = sotounpcb(so); 474 struct sockaddr_un *un = unp->unp_addr; 475 476 memset(pcb, 0, sizeof(*pcb)); 477 478 pcb->ki_family = so->so_proto->pr_domain->dom_family; 479 pcb->ki_type = so->so_proto->pr_type; 480 pcb->ki_protocol = so->so_proto->pr_protocol; 481 pcb->ki_pflags = unp->unp_flags; 482 483 pcb->ki_pcbaddr = PTRTOUINT64(unp); 484 /* pcb->ki_ppcbaddr = unp has no ppcb... */ 485 pcb->ki_sockaddr = PTRTOUINT64(so); 486 487 pcb->ki_sostate = so->so_state; 488 /* pcb->ki_prstate = unp has no state... */ 489 490 pcb->ki_rcvq = so->so_rcv.sb_cc; 491 pcb->ki_sndq = so->so_snd.sb_cc; 492 493 un = (struct sockaddr_un *)pcb->ki_spad; 494 /* 495 * local domain sockets may bind without having a local 496 * endpoint. bleah! 497 */ 498 if (unp->unp_addr != NULL) { 499 /* 500 * We've added one to sun_len when allocating to 501 * hold terminating NUL which we want here. See 502 * makeun(). 503 */ 504 memcpy(un, unp->unp_addr, 505 min(sizeof(pcb->ki_spad), unp->unp_addr->sun_len + 1)); 506 } 507 else { 508 un->sun_len = offsetof(struct sockaddr_un, sun_path); 509 un->sun_family = pcb->ki_family; 510 } 511 if (unp->unp_conn != NULL) { 512 un = (struct sockaddr_un *)pcb->ki_dpad; 513 if (unp->unp_conn->unp_addr != NULL) { 514 memcpy(un, unp->unp_conn->unp_addr, 515 min(sizeof(pcb->ki_dpad), unp->unp_conn->unp_addr->sun_len + 1)); 516 } 517 else { 518 un->sun_len = offsetof(struct sockaddr_un, sun_path); 519 un->sun_family = pcb->ki_family; 520 } 521 } 522 523 pcb->ki_inode = unp->unp_ino; 524 pcb->ki_vnode = PTRTOUINT64(unp->unp_vnode); 525 pcb->ki_conn = PTRTOUINT64(unp->unp_conn); 526 pcb->ki_refs = PTRTOUINT64(unp->unp_refs); 527 pcb->ki_nextref = PTRTOUINT64(unp->unp_nextref); 528 } 529 530 static int 531 sysctl_unpcblist(SYSCTLFN_ARGS) 532 { 533 struct file *fp, *dfp; 534 struct socket *so; 535 struct kinfo_pcb pcb; 536 char *dp; 537 size_t len, needed, elem_size, out_size; 538 int error, elem_count, pf, type; 539 540 if (namelen == 1 && name[0] == CTL_QUERY) 541 return sysctl_query(SYSCTLFN_CALL(rnode)); 542 543 if (namelen != 4) 544 return EINVAL; 545 546 if (oldp != NULL) { 547 len = *oldlenp; 548 elem_size = name[2]; 549 elem_count = name[3]; 550 if (elem_size != sizeof(pcb)) 551 return EINVAL; 552 } else { 553 len = 0; 554 elem_size = sizeof(pcb); 555 elem_count = INT_MAX; 556 } 557 error = 0; 558 dp = oldp; 559 out_size = elem_size; 560 needed = 0; 561 562 if (name - oname != 4) 563 return EINVAL; 564 565 pf = oname[1]; 566 type = oname[2]; 567 568 /* 569 * allocate dummy file descriptor to make position in list. 570 */ 571 sysctl_unlock(); 572 if ((dfp = fgetdummy()) == NULL) { 573 sysctl_relock(); 574 return ENOMEM; 575 } 576 577 /* 578 * there's no "list" of local domain sockets, so we have 579 * to walk the file list looking for them. :-/ 580 */ 581 mutex_enter(&filelist_lock); 582 LIST_FOREACH(fp, &filehead, f_list) { 583 if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET || 584 fp->f_socket == NULL) 585 continue; 586 so = fp->f_socket; 587 if (so->so_type != type) 588 continue; 589 if (so->so_proto->pr_domain->dom_family != pf) 590 continue; 591 if (kauth_authorize_network(l->l_cred, KAUTH_NETWORK_SOCKET, 592 KAUTH_REQ_NETWORK_SOCKET_CANSEE, so, NULL, NULL) != 0) 593 continue; 594 if (len >= elem_size && elem_count > 0) { 595 mutex_enter(&fp->f_lock); 596 /* 597 * Do not add references, if the count reached 0. 598 * Since the check above has been performed without 599 * locking, it must be rechecked here as a concurrent 600 * closef could have reduced it. 601 */ 602 if (fp->f_count == 0) { 603 mutex_exit(&fp->f_lock); 604 continue; 605 } 606 fp->f_count++; 607 mutex_exit(&fp->f_lock); 608 LIST_INSERT_AFTER(fp, dfp, f_list); 609 mutex_exit(&filelist_lock); 610 sysctl_dounpcb(&pcb, so); 611 error = copyout(&pcb, dp, out_size); 612 closef(fp); 613 mutex_enter(&filelist_lock); 614 LIST_REMOVE(dfp, f_list); 615 if (error) 616 break; 617 dp += elem_size; 618 len -= elem_size; 619 } 620 needed += elem_size; 621 if (elem_count > 0 && elem_count != INT_MAX) 622 elem_count--; 623 } 624 mutex_exit(&filelist_lock); 625 fputdummy(dfp); 626 *oldlenp = needed; 627 if (oldp == NULL) 628 *oldlenp += PCB_SLOP * sizeof(struct kinfo_pcb); 629 sysctl_relock(); 630 631 return error; 632 } 633 634 static void 635 sysctl_net_setup(void) 636 { 637 638 KASSERT(domain_sysctllog == NULL); 639 sysctl_createv(&domain_sysctllog, 0, NULL, NULL, 640 CTLFLAG_PERMANENT, 641 CTLTYPE_NODE, "local", 642 SYSCTL_DESCR("PF_LOCAL related settings"), 643 NULL, 0, NULL, 0, 644 CTL_NET, PF_LOCAL, CTL_EOL); 645 sysctl_createv(&domain_sysctllog, 0, NULL, NULL, 646 CTLFLAG_PERMANENT, 647 CTLTYPE_NODE, "stream", 648 SYSCTL_DESCR("SOCK_STREAM settings"), 649 NULL, 0, NULL, 0, 650 CTL_NET, PF_LOCAL, SOCK_STREAM, CTL_EOL); 651 sysctl_createv(&domain_sysctllog, 0, NULL, NULL, 652 CTLFLAG_PERMANENT, 653 CTLTYPE_NODE, "seqpacket", 654 SYSCTL_DESCR("SOCK_SEQPACKET settings"), 655 NULL, 0, NULL, 0, 656 CTL_NET, PF_LOCAL, SOCK_SEQPACKET, CTL_EOL); 657 sysctl_createv(&domain_sysctllog, 0, NULL, NULL, 658 CTLFLAG_PERMANENT, 659 CTLTYPE_NODE, "dgram", 660 SYSCTL_DESCR("SOCK_DGRAM settings"), 661 NULL, 0, NULL, 0, 662 CTL_NET, PF_LOCAL, SOCK_DGRAM, CTL_EOL); 663 664 sysctl_createv(&domain_sysctllog, 0, NULL, NULL, 665 CTLFLAG_PERMANENT, 666 CTLTYPE_STRUCT, "pcblist", 667 SYSCTL_DESCR("SOCK_STREAM protocol control block list"), 668 sysctl_unpcblist, 0, NULL, 0, 669 CTL_NET, PF_LOCAL, SOCK_STREAM, CTL_CREATE, CTL_EOL); 670 sysctl_createv(&domain_sysctllog, 0, NULL, NULL, 671 CTLFLAG_PERMANENT, 672 CTLTYPE_STRUCT, "pcblist", 673 SYSCTL_DESCR("SOCK_SEQPACKET protocol control " 674 "block list"), 675 sysctl_unpcblist, 0, NULL, 0, 676 CTL_NET, PF_LOCAL, SOCK_SEQPACKET, CTL_CREATE, CTL_EOL); 677 sysctl_createv(&domain_sysctllog, 0, NULL, NULL, 678 CTLFLAG_PERMANENT, 679 CTLTYPE_STRUCT, "pcblist", 680 SYSCTL_DESCR("SOCK_DGRAM protocol control block list"), 681 sysctl_unpcblist, 0, NULL, 0, 682 CTL_NET, PF_LOCAL, SOCK_DGRAM, CTL_CREATE, CTL_EOL); 683 } 684 685 void 686 pfctlinput(int cmd, const struct sockaddr *sa) 687 { 688 struct domain *dp; 689 const struct protosw *pr; 690 691 DOMAIN_FOREACH(dp) { 692 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 693 if (pr->pr_ctlinput != NULL) 694 (*pr->pr_ctlinput)(cmd, sa, NULL); 695 } 696 } 697 } 698 699 void 700 pfctlinput2(int cmd, const struct sockaddr *sa, void *ctlparam) 701 { 702 struct domain *dp; 703 const struct protosw *pr; 704 705 if (sa == NULL) 706 return; 707 708 DOMAIN_FOREACH(dp) { 709 /* 710 * the check must be made by xx_ctlinput() anyways, to 711 * make sure we use data item pointed to by ctlparam in 712 * correct way. the following check is made just for safety. 713 */ 714 if (dp->dom_family != sa->sa_family) 715 continue; 716 717 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) { 718 if (pr->pr_ctlinput != NULL) 719 (*pr->pr_ctlinput)(cmd, sa, ctlparam); 720 } 721 } 722 } 723 724 void 725 pfslowtimo(void *arg) 726 { 727 struct domain *dp; 728 const struct protosw *pr; 729 730 pfslowtimo_now++; 731 732 DOMAIN_FOREACH(dp) { 733 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 734 if (pr->pr_slowtimo) 735 (*pr->pr_slowtimo)(); 736 } 737 callout_schedule(&pfslowtimo_ch, hz / PR_SLOWHZ); 738 } 739 740 void 741 pffasttimo(void *arg) 742 { 743 struct domain *dp; 744 const struct protosw *pr; 745 746 pffasttimo_now++; 747 748 DOMAIN_FOREACH(dp) { 749 for (pr = dp->dom_protosw; pr < dp->dom_protoswNPROTOSW; pr++) 750 if (pr->pr_fasttimo) 751 (*pr->pr_fasttimo)(); 752 } 753 callout_schedule(&pffasttimo_ch, hz / PR_FASTHZ); 754 } 755