raw_ip.c revision 1.93
1 /* $NetBSD: raw_ip.c,v 1.93 2006/10/05 17:35:19 tls Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 5 * 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 project 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 PROJECT 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 PROJECT 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 32 /* 33 * Copyright (c) 1982, 1986, 1988, 1993 34 * The Regents of the University of California. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 61 */ 62 63 #include <sys/cdefs.h> 64 __KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1.93 2006/10/05 17:35:19 tls Exp $"); 65 66 #include "opt_inet.h" 67 #include "opt_ipsec.h" 68 #include "opt_mrouting.h" 69 70 #include <sys/param.h> 71 #include <sys/sysctl.h> 72 #include <sys/malloc.h> 73 #include <sys/mbuf.h> 74 #include <sys/socket.h> 75 #include <sys/protosw.h> 76 #include <sys/socketvar.h> 77 #include <sys/errno.h> 78 #include <sys/systm.h> 79 #include <sys/proc.h> 80 #include <sys/kauth.h> 81 82 #include <net/if.h> 83 #include <net/route.h> 84 85 #include <netinet/in.h> 86 #include <netinet/in_systm.h> 87 #include <netinet/ip.h> 88 #include <netinet/ip_var.h> 89 #include <netinet/ip_mroute.h> 90 #include <netinet/ip_icmp.h> 91 #include <netinet/in_pcb.h> 92 #include <netinet/in_proto.h> 93 #include <netinet/in_var.h> 94 95 #include <machine/stdarg.h> 96 97 #ifdef IPSEC 98 #include <netinet6/ipsec.h> 99 #endif /*IPSEC*/ 100 101 #ifdef FAST_IPSEC 102 #include <netipsec/ipsec.h> 103 #include <netipsec/ipsec_var.h> /* XXX ipsecstat namespace */ 104 #endif /* FAST_IPSEC*/ 105 106 struct inpcbtable rawcbtable; 107 108 int rip_pcbnotify(struct inpcbtable *, struct in_addr, 109 struct in_addr, int, int, void (*)(struct inpcb *, int)); 110 int rip_bind(struct inpcb *, struct mbuf *); 111 int rip_connect(struct inpcb *, struct mbuf *); 112 void rip_disconnect(struct inpcb *); 113 114 /* 115 * Nominal space allocated to a raw ip socket. 116 */ 117 #define RIPSNDQ 8192 118 #define RIPRCVQ 8192 119 120 /* 121 * Raw interface to IP protocol. 122 */ 123 124 /* 125 * Initialize raw connection block q. 126 */ 127 void 128 rip_init(void) 129 { 130 131 in_pcbinit(&rawcbtable, 1, 1); 132 } 133 134 /* 135 * Setup generic address and protocol structures 136 * for raw_input routine, then pass them along with 137 * mbuf chain. 138 */ 139 void 140 rip_input(struct mbuf *m, ...) 141 { 142 int proto; 143 struct ip *ip = mtod(m, struct ip *); 144 struct inpcb_hdr *inph; 145 struct inpcb *inp; 146 struct inpcb *last = 0; 147 struct mbuf *opts = 0; 148 struct sockaddr_in ripsrc; 149 va_list ap; 150 151 va_start(ap, m); 152 (void)va_arg(ap, int); /* ignore value, advance ap */ 153 proto = va_arg(ap, int); 154 va_end(ap); 155 156 ripsrc.sin_family = AF_INET; 157 ripsrc.sin_len = sizeof(struct sockaddr_in); 158 ripsrc.sin_addr = ip->ip_src; 159 ripsrc.sin_port = 0; 160 bzero((caddr_t)ripsrc.sin_zero, sizeof(ripsrc.sin_zero)); 161 162 /* 163 * XXX Compatibility: programs using raw IP expect ip_len 164 * XXX to have the header length subtracted, and in host order. 165 * XXX ip_off is also expected to be host order. 166 */ 167 ip->ip_len = ntohs(ip->ip_len) - (ip->ip_hl << 2); 168 NTOHS(ip->ip_off); 169 170 CIRCLEQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { 171 inp = (struct inpcb *)inph; 172 if (inp->inp_af != AF_INET) 173 continue; 174 if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) 175 continue; 176 if (!in_nullhost(inp->inp_laddr) && 177 !in_hosteq(inp->inp_laddr, ip->ip_dst)) 178 continue; 179 if (!in_nullhost(inp->inp_faddr) && 180 !in_hosteq(inp->inp_faddr, ip->ip_src)) 181 continue; 182 if (last) { 183 struct mbuf *n; 184 185 #if defined(IPSEC) || defined(FAST_IPSEC) 186 /* check AH/ESP integrity. */ 187 if (ipsec4_in_reject_so(m, last->inp_socket)) { 188 ipsecstat.in_polvio++; 189 /* do not inject data to pcb */ 190 } else 191 #endif /*IPSEC*/ 192 if ((n = m_copy(m, 0, (int)M_COPYALL)) != NULL) { 193 if (last->inp_flags & INP_CONTROLOPTS || 194 last->inp_socket->so_options & SO_TIMESTAMP) 195 ip_savecontrol(last, &opts, ip, n); 196 if (sbappendaddr(&last->inp_socket->so_rcv, 197 sintosa(&ripsrc), n, opts) == 0) { 198 /* should notify about lost packet */ 199 m_freem(n); 200 if (opts) 201 m_freem(opts); 202 } else 203 sorwakeup(last->inp_socket); 204 opts = NULL; 205 } 206 } 207 last = inp; 208 } 209 #if defined(IPSEC) || defined(FAST_IPSEC) 210 /* check AH/ESP integrity. */ 211 if (last && ipsec4_in_reject_so(m, last->inp_socket)) { 212 m_freem(m); 213 ipsecstat.in_polvio++; 214 ipstat.ips_delivered--; 215 /* do not inject data to pcb */ 216 } else 217 #endif /*IPSEC*/ 218 if (last) { 219 if (last->inp_flags & INP_CONTROLOPTS || 220 last->inp_socket->so_options & SO_TIMESTAMP) 221 ip_savecontrol(last, &opts, ip, m); 222 if (sbappendaddr(&last->inp_socket->so_rcv, 223 sintosa(&ripsrc), m, opts) == 0) { 224 m_freem(m); 225 if (opts) 226 m_freem(opts); 227 } else 228 sorwakeup(last->inp_socket); 229 } else { 230 if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { 231 icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, 232 0, 0); 233 ipstat.ips_noproto++; 234 ipstat.ips_delivered--; 235 } else 236 m_freem(m); 237 } 238 return; 239 } 240 241 int 242 rip_pcbnotify(struct inpcbtable *table, 243 struct in_addr faddr, struct in_addr laddr, int proto, int errno, 244 void (*notify)(struct inpcb *, int)) 245 { 246 struct inpcb *inp, *ninp; 247 int nmatch; 248 249 nmatch = 0; 250 for (inp = (struct inpcb *)CIRCLEQ_FIRST(&table->inpt_queue); 251 inp != (struct inpcb *)&table->inpt_queue; 252 inp = ninp) { 253 ninp = (struct inpcb *)inp->inp_queue.cqe_next; 254 if (inp->inp_af != AF_INET) 255 continue; 256 if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) 257 continue; 258 if (in_hosteq(inp->inp_faddr, faddr) && 259 in_hosteq(inp->inp_laddr, laddr)) { 260 (*notify)(inp, errno); 261 nmatch++; 262 } 263 } 264 265 return nmatch; 266 } 267 268 void * 269 rip_ctlinput(int cmd, struct sockaddr *sa, void *v) 270 { 271 struct ip *ip = v; 272 void (*notify)(struct inpcb *, int) = in_rtchange; 273 int errno; 274 275 if (sa->sa_family != AF_INET || 276 sa->sa_len != sizeof(struct sockaddr_in)) 277 return NULL; 278 if ((unsigned)cmd >= PRC_NCMDS) 279 return NULL; 280 errno = inetctlerrmap[cmd]; 281 if (PRC_IS_REDIRECT(cmd)) 282 notify = in_rtchange, ip = 0; 283 else if (cmd == PRC_HOSTDEAD) 284 ip = 0; 285 else if (errno == 0) 286 return NULL; 287 if (ip) { 288 rip_pcbnotify(&rawcbtable, satosin(sa)->sin_addr, 289 ip->ip_src, ip->ip_p, errno, notify); 290 291 /* XXX mapped address case */ 292 } else 293 in_pcbnotifyall(&rawcbtable, satosin(sa)->sin_addr, errno, 294 notify); 295 return NULL; 296 } 297 298 /* 299 * Generate IP header and pass packet to ip_output. 300 * Tack on options user may have setup with control call. 301 */ 302 int 303 rip_output(struct mbuf *m, ...) 304 { 305 struct inpcb *inp; 306 struct ip *ip; 307 struct mbuf *opts; 308 int flags; 309 va_list ap; 310 311 va_start(ap, m); 312 inp = va_arg(ap, struct inpcb *); 313 va_end(ap); 314 315 flags = 316 (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST 317 | IP_RETURNMTU; 318 319 /* 320 * If the user handed us a complete IP packet, use it. 321 * Otherwise, allocate an mbuf for a header and fill it in. 322 */ 323 if ((inp->inp_flags & INP_HDRINCL) == 0) { 324 if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { 325 m_freem(m); 326 return (EMSGSIZE); 327 } 328 M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); 329 if (!m) 330 return (ENOBUFS); 331 ip = mtod(m, struct ip *); 332 ip->ip_tos = 0; 333 ip->ip_off = htons(0); 334 ip->ip_p = inp->inp_ip.ip_p; 335 ip->ip_len = htons(m->m_pkthdr.len); 336 ip->ip_src = inp->inp_laddr; 337 ip->ip_dst = inp->inp_faddr; 338 ip->ip_ttl = MAXTTL; 339 opts = inp->inp_options; 340 } else { 341 if (m->m_pkthdr.len > IP_MAXPACKET) { 342 m_freem(m); 343 return (EMSGSIZE); 344 } 345 ip = mtod(m, struct ip *); 346 347 /* 348 * If the mbuf is read-only, we need to allocate 349 * a new mbuf for the header, since we need to 350 * modify the header. 351 */ 352 if (M_READONLY(m)) { 353 int hlen = ip->ip_hl << 2; 354 355 m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); 356 if (m == NULL) 357 return (ENOMEM); /* XXX */ 358 ip = mtod(m, struct ip *); 359 } 360 361 /* XXX userland passes ip_len and ip_off in host order */ 362 if (m->m_pkthdr.len != ip->ip_len) { 363 m_freem(m); 364 return (EINVAL); 365 } 366 HTONS(ip->ip_len); 367 HTONS(ip->ip_off); 368 if (ip->ip_id == 0) 369 ip->ip_id = ip_newid(); 370 opts = NULL; 371 /* XXX prevent ip_output from overwriting header fields */ 372 flags |= IP_RAWOUTPUT; 373 ipstat.ips_rawout++; 374 } 375 return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, 376 inp->inp_socket, &inp->inp_errormtu)); 377 } 378 379 /* 380 * Raw IP socket option processing. 381 */ 382 int 383 rip_ctloutput(int op, struct socket *so, int level, int optname, 384 struct mbuf **m) 385 { 386 struct inpcb *inp = sotoinpcb(so); 387 int error = 0; 388 389 if (level != IPPROTO_IP) { 390 error = ENOPROTOOPT; 391 if (op == PRCO_SETOPT && *m != 0) 392 (void) m_free(*m); 393 } else switch (op) { 394 395 case PRCO_SETOPT: 396 switch (optname) { 397 case IP_HDRINCL: 398 if (*m == 0 || (*m)->m_len < sizeof (int)) 399 error = EINVAL; 400 else { 401 if (*mtod(*m, int *)) 402 inp->inp_flags |= INP_HDRINCL; 403 else 404 inp->inp_flags &= ~INP_HDRINCL; 405 } 406 if (*m != 0) 407 (void) m_free(*m); 408 break; 409 410 #ifdef MROUTING 411 case MRT_INIT: 412 case MRT_DONE: 413 case MRT_ADD_VIF: 414 case MRT_DEL_VIF: 415 case MRT_ADD_MFC: 416 case MRT_DEL_MFC: 417 case MRT_ASSERT: 418 case MRT_API_CONFIG: 419 case MRT_ADD_BW_UPCALL: 420 case MRT_DEL_BW_UPCALL: 421 error = ip_mrouter_set(so, optname, m); 422 break; 423 #endif 424 425 default: 426 error = ip_ctloutput(op, so, level, optname, m); 427 break; 428 } 429 break; 430 431 case PRCO_GETOPT: 432 switch (optname) { 433 case IP_HDRINCL: 434 *m = m_get(M_WAIT, MT_SOOPTS); 435 MCLAIM((*m), so->so_mowner); 436 (*m)->m_len = sizeof (int); 437 *mtod(*m, int *) = inp->inp_flags & INP_HDRINCL ? 1 : 0; 438 break; 439 440 #ifdef MROUTING 441 case MRT_VERSION: 442 case MRT_ASSERT: 443 case MRT_API_SUPPORT: 444 case MRT_API_CONFIG: 445 error = ip_mrouter_get(so, optname, m); 446 break; 447 #endif 448 449 default: 450 error = ip_ctloutput(op, so, level, optname, m); 451 break; 452 } 453 break; 454 } 455 return (error); 456 } 457 458 int 459 rip_bind(struct inpcb *inp, struct mbuf *nam) 460 { 461 struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); 462 463 if (nam->m_len != sizeof(*addr)) 464 return (EINVAL); 465 if (TAILQ_FIRST(&ifnet) == 0) 466 return (EADDRNOTAVAIL); 467 if (addr->sin_family != AF_INET && 468 addr->sin_family != AF_IMPLINK) 469 return (EAFNOSUPPORT); 470 if (!in_nullhost(addr->sin_addr) && 471 ifa_ifwithaddr(sintosa(addr)) == 0) 472 return (EADDRNOTAVAIL); 473 inp->inp_laddr = addr->sin_addr; 474 return (0); 475 } 476 477 int 478 rip_connect(struct inpcb *inp, struct mbuf *nam) 479 { 480 struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); 481 482 if (nam->m_len != sizeof(*addr)) 483 return (EINVAL); 484 if (TAILQ_FIRST(&ifnet) == 0) 485 return (EADDRNOTAVAIL); 486 if (addr->sin_family != AF_INET && 487 addr->sin_family != AF_IMPLINK) 488 return (EAFNOSUPPORT); 489 inp->inp_faddr = addr->sin_addr; 490 return (0); 491 } 492 493 void 494 rip_disconnect(struct inpcb *inp) 495 { 496 497 inp->inp_faddr = zeroin_addr; 498 } 499 500 u_long rip_sendspace = RIPSNDQ; 501 u_long rip_recvspace = RIPRCVQ; 502 503 /*ARGSUSED*/ 504 int 505 rip_usrreq(struct socket *so, int req, 506 struct mbuf *m, struct mbuf *nam, struct mbuf *control, struct lwp *l) 507 { 508 struct inpcb *inp; 509 int s; 510 int error = 0; 511 #ifdef MROUTING 512 extern struct socket *ip_mrouter; 513 #endif 514 515 if (req == PRU_CONTROL) 516 return (in_control(so, (long)m, (caddr_t)nam, 517 (struct ifnet *)control, l)); 518 519 s = splsoftnet(); 520 521 if (req == PRU_PURGEIF) { 522 in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); 523 in_purgeif((struct ifnet *)control); 524 in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); 525 splx(s); 526 return (0); 527 } 528 529 inp = sotoinpcb(so); 530 #ifdef DIAGNOSTIC 531 if (req != PRU_SEND && req != PRU_SENDOOB && control) 532 panic("rip_usrreq: unexpected control mbuf"); 533 #endif 534 if (inp == 0 && req != PRU_ATTACH) { 535 error = EINVAL; 536 goto release; 537 } 538 539 switch (req) { 540 541 case PRU_ATTACH: 542 if (inp != 0) { 543 error = EISCONN; 544 break; 545 } 546 if (l == 0 || (error = kauth_authorize_network(l->l_cred, 547 KAUTH_NETWORK_SOCKET, 548 KAUTH_REQ_NETWORK_SOCKET_RAWSOCK, so, NULL, 549 NULL))) { 550 error = EACCES; 551 break; 552 } 553 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 554 error = soreserve(so, rip_sendspace, rip_recvspace); 555 if (error) 556 break; 557 } 558 error = in_pcballoc(so, &rawcbtable); 559 if (error) 560 break; 561 inp = sotoinpcb(so); 562 inp->inp_ip.ip_p = (long)nam; 563 break; 564 565 case PRU_DETACH: 566 #ifdef MROUTING 567 if (so == ip_mrouter) 568 ip_mrouter_done(); 569 #endif 570 in_pcbdetach(inp); 571 break; 572 573 case PRU_BIND: 574 error = rip_bind(inp, nam); 575 break; 576 577 case PRU_LISTEN: 578 error = EOPNOTSUPP; 579 break; 580 581 case PRU_CONNECT: 582 error = rip_connect(inp, nam); 583 if (error) 584 break; 585 soisconnected(so); 586 break; 587 588 case PRU_CONNECT2: 589 error = EOPNOTSUPP; 590 break; 591 592 case PRU_DISCONNECT: 593 soisdisconnected(so); 594 rip_disconnect(inp); 595 break; 596 597 /* 598 * Mark the connection as being incapable of further input. 599 */ 600 case PRU_SHUTDOWN: 601 socantsendmore(so); 602 break; 603 604 case PRU_RCVD: 605 error = EOPNOTSUPP; 606 break; 607 608 /* 609 * Ship a packet out. The appropriate raw output 610 * routine handles any massaging necessary. 611 */ 612 case PRU_SEND: 613 if (control && control->m_len) { 614 m_freem(control); 615 m_freem(m); 616 error = EINVAL; 617 break; 618 } 619 { 620 if (nam) { 621 if ((so->so_state & SS_ISCONNECTED) != 0) { 622 error = EISCONN; 623 goto die; 624 } 625 error = rip_connect(inp, nam); 626 if (error) { 627 die: 628 m_freem(m); 629 break; 630 } 631 } else { 632 if ((so->so_state & SS_ISCONNECTED) == 0) { 633 error = ENOTCONN; 634 goto die; 635 } 636 } 637 error = rip_output(m, inp); 638 if (nam) 639 rip_disconnect(inp); 640 } 641 break; 642 643 case PRU_SENSE: 644 /* 645 * stat: don't bother with a blocksize. 646 */ 647 splx(s); 648 return (0); 649 650 case PRU_RCVOOB: 651 error = EOPNOTSUPP; 652 break; 653 654 case PRU_SENDOOB: 655 m_freem(control); 656 m_freem(m); 657 error = EOPNOTSUPP; 658 break; 659 660 case PRU_SOCKADDR: 661 in_setsockaddr(inp, nam); 662 break; 663 664 case PRU_PEERADDR: 665 in_setpeeraddr(inp, nam); 666 break; 667 668 default: 669 panic("rip_usrreq"); 670 } 671 672 release: 673 splx(s); 674 return (error); 675 } 676 677 SYSCTL_SETUP(sysctl_net_inet_raw_setup, "sysctl net.inet.raw subtree setup") 678 { 679 680 sysctl_createv(clog, 0, NULL, NULL, 681 CTLFLAG_PERMANENT, 682 CTLTYPE_NODE, "net", NULL, 683 NULL, 0, NULL, 0, 684 CTL_NET, CTL_EOL); 685 sysctl_createv(clog, 0, NULL, NULL, 686 CTLFLAG_PERMANENT, 687 CTLTYPE_NODE, "inet", NULL, 688 NULL, 0, NULL, 0, 689 CTL_NET, PF_INET, CTL_EOL); 690 sysctl_createv(clog, 0, NULL, NULL, 691 CTLFLAG_PERMANENT, 692 CTLTYPE_NODE, "raw", 693 SYSCTL_DESCR("Raw IPv4 settings"), 694 NULL, 0, NULL, 0, 695 CTL_NET, PF_INET, IPPROTO_RAW, CTL_EOL); 696 697 sysctl_createv(clog, 0, NULL, NULL, 698 CTLFLAG_PERMANENT, 699 CTLTYPE_STRUCT, "pcblist", 700 SYSCTL_DESCR("Raw IPv4 control block list"), 701 sysctl_inpcblist, 0, &rawcbtable, 0, 702 CTL_NET, PF_INET, IPPROTO_RAW, 703 CTL_CREATE, CTL_EOL); 704 } 705
Indexes created Mon Sep 29 21:09:56 GMT 2025