raw_ip.c revision 1.122
1 /* $NetBSD: raw_ip.c,v 1.122 2014/05/20 19:04:00 rmind 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 /* 64 * Raw interface to IP protocol. 65 */ 66 67 #include <sys/cdefs.h> 68 __KERNEL_RCSID(0, "$NetBSD: raw_ip.c,v 1.122 2014/05/20 19:04:00 rmind Exp $"); 69 70 #include "opt_inet.h" 71 #include "opt_compat_netbsd.h" 72 #include "opt_ipsec.h" 73 #include "opt_mrouting.h" 74 75 #include <sys/param.h> 76 #include <sys/sysctl.h> 77 #include <sys/malloc.h> 78 #include <sys/mbuf.h> 79 #include <sys/socket.h> 80 #include <sys/protosw.h> 81 #include <sys/socketvar.h> 82 #include <sys/errno.h> 83 #include <sys/systm.h> 84 #include <sys/proc.h> 85 #include <sys/kauth.h> 86 87 #include <net/if.h> 88 #include <net/route.h> 89 90 #include <netinet/in.h> 91 #include <netinet/in_systm.h> 92 #include <netinet/ip.h> 93 #include <netinet/ip_var.h> 94 #include <netinet/ip_private.h> 95 #include <netinet/ip_mroute.h> 96 #include <netinet/ip_icmp.h> 97 #include <netinet/in_pcb.h> 98 #include <netinet/in_proto.h> 99 #include <netinet/in_var.h> 100 101 #ifdef IPSEC 102 #include <netipsec/ipsec.h> 103 #include <netipsec/ipsec_var.h> 104 #include <netipsec/ipsec_private.h> 105 #endif /* IPSEC */ 106 107 #ifdef COMPAT_50 108 #include <compat/sys/socket.h> 109 #endif 110 111 struct inpcbtable rawcbtable; 112 113 int rip_pcbnotify(struct inpcbtable *, struct in_addr, 114 struct in_addr, int, int, void (*)(struct inpcb *, int)); 115 int rip_bind(struct inpcb *, struct mbuf *); 116 int rip_connect(struct inpcb *, struct mbuf *); 117 void rip_disconnect(struct inpcb *); 118 119 static void sysctl_net_inet_raw_setup(struct sysctllog **); 120 121 /* 122 * Nominal space allocated to a raw ip socket. 123 */ 124 #define RIPSNDQ 8192 125 #define RIPRCVQ 8192 126 127 static u_long rip_sendspace = RIPSNDQ; 128 static u_long rip_recvspace = RIPRCVQ; 129 130 /* 131 * Raw interface to IP protocol. 132 */ 133 134 /* 135 * Initialize raw connection block q. 136 */ 137 void 138 rip_init(void) 139 { 140 141 sysctl_net_inet_raw_setup(NULL); 142 in_pcbinit(&rawcbtable, 1, 1); 143 } 144 145 static void 146 rip_sbappendaddr(struct inpcb *last, struct ip *ip, const struct sockaddr *sa, 147 int hlen, struct mbuf *opts, struct mbuf *n) 148 { 149 if (last->inp_flags & INP_NOHEADER) 150 m_adj(n, hlen); 151 if (last->inp_flags & INP_CONTROLOPTS 152 #ifdef SO_OTIMESTAMP 153 || last->inp_socket->so_options & SO_OTIMESTAMP 154 #endif 155 || last->inp_socket->so_options & SO_TIMESTAMP) 156 ip_savecontrol(last, &opts, ip, n); 157 if (sbappendaddr(&last->inp_socket->so_rcv, sa, n, opts) == 0) { 158 /* should notify about lost packet */ 159 m_freem(n); 160 if (opts) 161 m_freem(opts); 162 } else 163 sorwakeup(last->inp_socket); 164 } 165 166 /* 167 * Setup generic address and protocol structures 168 * for raw_input routine, then pass them along with 169 * mbuf chain. 170 */ 171 void 172 rip_input(struct mbuf *m, ...) 173 { 174 int hlen, proto; 175 struct ip *ip = mtod(m, struct ip *); 176 struct inpcb_hdr *inph; 177 struct inpcb *inp; 178 struct inpcb *last = NULL; 179 struct mbuf *n, *opts = NULL; 180 struct sockaddr_in ripsrc; 181 va_list ap; 182 183 va_start(ap, m); 184 (void)va_arg(ap, int); /* ignore value, advance ap */ 185 proto = va_arg(ap, int); 186 va_end(ap); 187 188 sockaddr_in_init(&ripsrc, &ip->ip_src, 0); 189 190 /* 191 * XXX Compatibility: programs using raw IP expect ip_len 192 * XXX to have the header length subtracted, and in host order. 193 * XXX ip_off is also expected to be host order. 194 */ 195 hlen = ip->ip_hl << 2; 196 ip->ip_len = ntohs(ip->ip_len) - hlen; 197 NTOHS(ip->ip_off); 198 199 TAILQ_FOREACH(inph, &rawcbtable.inpt_queue, inph_queue) { 200 inp = (struct inpcb *)inph; 201 if (inp->inp_af != AF_INET) 202 continue; 203 if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) 204 continue; 205 if (!in_nullhost(inp->inp_laddr) && 206 !in_hosteq(inp->inp_laddr, ip->ip_dst)) 207 continue; 208 if (!in_nullhost(inp->inp_faddr) && 209 !in_hosteq(inp->inp_faddr, ip->ip_src)) 210 continue; 211 if (last == NULL) 212 ; 213 #if defined(IPSEC) 214 /* check AH/ESP integrity. */ 215 else if (ipsec4_in_reject_so(m, last->inp_socket)) { 216 IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); 217 /* do not inject data to pcb */ 218 } 219 #endif /*IPSEC*/ 220 else if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { 221 rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, 222 n); 223 opts = NULL; 224 } 225 last = inp; 226 } 227 #if defined(IPSEC) 228 /* check AH/ESP integrity. */ 229 if (last != NULL && ipsec4_in_reject_so(m, last->inp_socket)) { 230 m_freem(m); 231 IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); 232 IP_STATDEC(IP_STAT_DELIVERED); 233 /* do not inject data to pcb */ 234 } else 235 #endif /*IPSEC*/ 236 if (last != NULL) 237 rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, m); 238 else if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { 239 uint64_t *ips; 240 241 icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, 242 0, 0); 243 ips = IP_STAT_GETREF(); 244 ips[IP_STAT_NOPROTO]++; 245 ips[IP_STAT_DELIVERED]--; 246 IP_STAT_PUTREF(); 247 } else 248 m_freem(m); 249 return; 250 } 251 252 int 253 rip_pcbnotify(struct inpcbtable *table, 254 struct in_addr faddr, struct in_addr laddr, int proto, int errno, 255 void (*notify)(struct inpcb *, int)) 256 { 257 struct inpcb_hdr *inph, *ninph; 258 int nmatch; 259 260 nmatch = 0; 261 TAILQ_FOREACH_SAFE(inph, &table->inpt_queue, inph_queue, ninph) { 262 struct inpcb *inp = (struct inpcb *)inph; 263 if (inp->inp_af != AF_INET) 264 continue; 265 if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) 266 continue; 267 if (in_hosteq(inp->inp_faddr, faddr) && 268 in_hosteq(inp->inp_laddr, laddr)) { 269 (*notify)(inp, errno); 270 nmatch++; 271 } 272 } 273 274 return nmatch; 275 } 276 277 void * 278 rip_ctlinput(int cmd, const struct sockaddr *sa, void *v) 279 { 280 struct ip *ip = v; 281 void (*notify)(struct inpcb *, int) = in_rtchange; 282 int errno; 283 284 if (sa->sa_family != AF_INET || 285 sa->sa_len != sizeof(struct sockaddr_in)) 286 return NULL; 287 if ((unsigned)cmd >= PRC_NCMDS) 288 return NULL; 289 errno = inetctlerrmap[cmd]; 290 if (PRC_IS_REDIRECT(cmd)) 291 notify = in_rtchange, ip = 0; 292 else if (cmd == PRC_HOSTDEAD) 293 ip = 0; 294 else if (errno == 0) 295 return NULL; 296 if (ip) { 297 rip_pcbnotify(&rawcbtable, satocsin(sa)->sin_addr, 298 ip->ip_src, ip->ip_p, errno, notify); 299 300 /* XXX mapped address case */ 301 } else 302 in_pcbnotifyall(&rawcbtable, satocsin(sa)->sin_addr, errno, 303 notify); 304 return NULL; 305 } 306 307 /* 308 * Generate IP header and pass packet to ip_output. 309 * Tack on options user may have setup with control call. 310 */ 311 int 312 rip_output(struct mbuf *m, ...) 313 { 314 struct inpcb *inp; 315 struct ip *ip; 316 struct mbuf *opts; 317 int flags; 318 va_list ap; 319 320 va_start(ap, m); 321 inp = va_arg(ap, struct inpcb *); 322 va_end(ap); 323 324 flags = 325 (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST 326 | IP_RETURNMTU; 327 328 /* 329 * If the user handed us a complete IP packet, use it. 330 * Otherwise, allocate an mbuf for a header and fill it in. 331 */ 332 if ((inp->inp_flags & INP_HDRINCL) == 0) { 333 if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { 334 m_freem(m); 335 return (EMSGSIZE); 336 } 337 M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); 338 if (!m) 339 return (ENOBUFS); 340 ip = mtod(m, struct ip *); 341 ip->ip_tos = 0; 342 ip->ip_off = htons(0); 343 ip->ip_p = inp->inp_ip.ip_p; 344 ip->ip_len = htons(m->m_pkthdr.len); 345 ip->ip_src = inp->inp_laddr; 346 ip->ip_dst = inp->inp_faddr; 347 ip->ip_ttl = MAXTTL; 348 opts = inp->inp_options; 349 } else { 350 if (m->m_pkthdr.len > IP_MAXPACKET) { 351 m_freem(m); 352 return (EMSGSIZE); 353 } 354 ip = mtod(m, struct ip *); 355 356 /* 357 * If the mbuf is read-only, we need to allocate 358 * a new mbuf for the header, since we need to 359 * modify the header. 360 */ 361 if (M_READONLY(m)) { 362 int hlen = ip->ip_hl << 2; 363 364 m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); 365 if (m == NULL) 366 return (ENOMEM); /* XXX */ 367 ip = mtod(m, struct ip *); 368 } 369 370 /* XXX userland passes ip_len and ip_off in host order */ 371 if (m->m_pkthdr.len != ip->ip_len) { 372 m_freem(m); 373 return (EINVAL); 374 } 375 HTONS(ip->ip_len); 376 HTONS(ip->ip_off); 377 if (ip->ip_id != 0 || m->m_pkthdr.len < IP_MINFRAGSIZE) 378 flags |= IP_NOIPNEWID; 379 opts = NULL; 380 /* XXX prevent ip_output from overwriting header fields */ 381 flags |= IP_RAWOUTPUT; 382 IP_STATINC(IP_STAT_RAWOUT); 383 } 384 return (ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, 385 inp->inp_socket, &inp->inp_errormtu)); 386 } 387 388 /* 389 * Raw IP socket option processing. 390 */ 391 int 392 rip_ctloutput(int op, struct socket *so, struct sockopt *sopt) 393 { 394 struct inpcb *inp = sotoinpcb(so); 395 int error = 0; 396 int optval; 397 398 if (sopt->sopt_level == SOL_SOCKET && sopt->sopt_name == SO_NOHEADER) { 399 if (op == PRCO_GETOPT) { 400 optval = (inp->inp_flags & INP_NOHEADER) ? 1 : 0; 401 error = sockopt_set(sopt, &optval, sizeof(optval)); 402 } else if (op == PRCO_SETOPT) { 403 error = sockopt_getint(sopt, &optval); 404 if (error) 405 goto out; 406 if (optval) { 407 inp->inp_flags &= ~INP_HDRINCL; 408 inp->inp_flags |= INP_NOHEADER; 409 } else 410 inp->inp_flags &= ~INP_NOHEADER; 411 } 412 goto out; 413 } else if (sopt->sopt_level != IPPROTO_IP) 414 return ip_ctloutput(op, so, sopt); 415 416 switch (op) { 417 418 case PRCO_SETOPT: 419 switch (sopt->sopt_name) { 420 case IP_HDRINCL: 421 error = sockopt_getint(sopt, &optval); 422 if (error) 423 break; 424 if (optval) 425 inp->inp_flags |= INP_HDRINCL; 426 else 427 inp->inp_flags &= ~INP_HDRINCL; 428 break; 429 430 #ifdef MROUTING 431 case MRT_INIT: 432 case MRT_DONE: 433 case MRT_ADD_VIF: 434 case MRT_DEL_VIF: 435 case MRT_ADD_MFC: 436 case MRT_DEL_MFC: 437 case MRT_ASSERT: 438 case MRT_API_CONFIG: 439 case MRT_ADD_BW_UPCALL: 440 case MRT_DEL_BW_UPCALL: 441 error = ip_mrouter_set(so, sopt); 442 break; 443 #endif 444 445 default: 446 error = ip_ctloutput(op, so, sopt); 447 break; 448 } 449 break; 450 451 case PRCO_GETOPT: 452 switch (sopt->sopt_name) { 453 case IP_HDRINCL: 454 optval = inp->inp_flags & INP_HDRINCL; 455 error = sockopt_set(sopt, &optval, sizeof(optval)); 456 break; 457 458 #ifdef MROUTING 459 case MRT_VERSION: 460 case MRT_ASSERT: 461 case MRT_API_SUPPORT: 462 case MRT_API_CONFIG: 463 error = ip_mrouter_get(so, sopt); 464 break; 465 #endif 466 467 default: 468 error = ip_ctloutput(op, so, sopt); 469 break; 470 } 471 break; 472 } 473 out: 474 return error; 475 } 476 477 int 478 rip_bind(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 (!IFNET_FIRST()) 485 return (EADDRNOTAVAIL); 486 if (addr->sin_family != AF_INET) 487 return (EAFNOSUPPORT); 488 if (!in_nullhost(addr->sin_addr) && 489 ifa_ifwithaddr(sintosa(addr)) == 0) 490 return (EADDRNOTAVAIL); 491 inp->inp_laddr = addr->sin_addr; 492 return (0); 493 } 494 495 int 496 rip_connect(struct inpcb *inp, struct mbuf *nam) 497 { 498 struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); 499 500 if (nam->m_len != sizeof(*addr)) 501 return (EINVAL); 502 if (!IFNET_FIRST()) 503 return (EADDRNOTAVAIL); 504 if (addr->sin_family != AF_INET) 505 return (EAFNOSUPPORT); 506 inp->inp_faddr = addr->sin_addr; 507 return (0); 508 } 509 510 void 511 rip_disconnect(struct inpcb *inp) 512 { 513 514 inp->inp_faddr = zeroin_addr; 515 } 516 517 static int 518 rip_attach(struct socket *so, int proto) 519 { 520 struct inpcb *inp; 521 int error; 522 523 KASSERT(sotoinpcb(so) == NULL); 524 sosetlock(so); 525 526 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 527 error = soreserve(so, rip_sendspace, rip_recvspace); 528 if (error) { 529 return error; 530 } 531 } 532 533 error = in_pcballoc(so, &rawcbtable); 534 if (error) { 535 return error; 536 } 537 inp = sotoinpcb(so); 538 inp->inp_ip.ip_p = proto; 539 KASSERT(solocked(so)); 540 541 return 0; 542 } 543 544 static void 545 rip_detach(struct socket *so) 546 { 547 struct inpcb *inp; 548 549 KASSERT(solocked(so)); 550 inp = sotoinpcb(so); 551 KASSERT(inp != NULL); 552 553 #ifdef MROUTING 554 extern struct socket *ip_mrouter; 555 if (so == ip_mrouter) { 556 ip_mrouter_done(); 557 } 558 #endif 559 in_pcbdetach(inp); 560 } 561 562 int 563 rip_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, 564 struct mbuf *control, struct lwp *l) 565 { 566 struct inpcb *inp; 567 int s, error = 0; 568 569 KASSERT(req != PRU_ATTACH); 570 KASSERT(req != PRU_DETACH); 571 572 if (req == PRU_CONTROL) { 573 return in_control(so, (long)m, nam, (ifnet_t *)control, l); 574 } 575 s = splsoftnet(); 576 if (req == PRU_PURGEIF) { 577 mutex_enter(softnet_lock); 578 in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); 579 in_purgeif((struct ifnet *)control); 580 in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); 581 mutex_exit(softnet_lock); 582 splx(s); 583 return 0; 584 } 585 586 KASSERT(solocked(so)); 587 inp = sotoinpcb(so); 588 589 KASSERT(!control || (req == PRU_SEND || req == PRU_SENDOOB)); 590 if (inp == NULL) { 591 splx(s); 592 return EINVAL; 593 } 594 595 switch (req) { 596 597 case PRU_BIND: 598 error = rip_bind(inp, nam); 599 break; 600 601 case PRU_LISTEN: 602 error = EOPNOTSUPP; 603 break; 604 605 case PRU_CONNECT: 606 error = rip_connect(inp, nam); 607 if (error) 608 break; 609 soisconnected(so); 610 break; 611 612 case PRU_CONNECT2: 613 error = EOPNOTSUPP; 614 break; 615 616 case PRU_DISCONNECT: 617 soisdisconnected(so); 618 rip_disconnect(inp); 619 break; 620 621 /* 622 * Mark the connection as being incapable of further input. 623 */ 624 case PRU_SHUTDOWN: 625 socantsendmore(so); 626 break; 627 628 case PRU_RCVD: 629 error = EOPNOTSUPP; 630 break; 631 632 /* 633 * Ship a packet out. The appropriate raw output 634 * routine handles any massaging necessary. 635 */ 636 case PRU_SEND: 637 if (control && control->m_len) { 638 m_freem(control); 639 m_freem(m); 640 error = EINVAL; 641 break; 642 } 643 { 644 if (nam) { 645 if ((so->so_state & SS_ISCONNECTED) != 0) { 646 error = EISCONN; 647 goto die; 648 } 649 error = rip_connect(inp, nam); 650 if (error) { 651 die: 652 m_freem(m); 653 break; 654 } 655 } else { 656 if ((so->so_state & SS_ISCONNECTED) == 0) { 657 error = ENOTCONN; 658 goto die; 659 } 660 } 661 error = rip_output(m, inp); 662 if (nam) 663 rip_disconnect(inp); 664 } 665 break; 666 667 case PRU_SENSE: 668 /* 669 * stat: don't bother with a blocksize. 670 */ 671 splx(s); 672 return (0); 673 674 case PRU_RCVOOB: 675 error = EOPNOTSUPP; 676 break; 677 678 case PRU_SENDOOB: 679 m_freem(control); 680 m_freem(m); 681 error = EOPNOTSUPP; 682 break; 683 684 case PRU_SOCKADDR: 685 in_setsockaddr(inp, nam); 686 break; 687 688 case PRU_PEERADDR: 689 in_setpeeraddr(inp, nam); 690 break; 691 692 default: 693 panic("rip_usrreq"); 694 } 695 splx(s); 696 697 return error; 698 } 699 700 PR_WRAP_USRREQS(rip) 701 #define rip_attach rip_attach_wrapper 702 #define rip_detach rip_detach_wrapper 703 #define rip_usrreq rip_usrreq_wrapper 704 705 const struct pr_usrreqs rip_usrreqs = { 706 .pr_attach = rip_attach, 707 .pr_detach = rip_detach, 708 .pr_generic = rip_usrreq, 709 }; 710 711 static void 712 sysctl_net_inet_raw_setup(struct sysctllog **clog) 713 { 714 715 sysctl_createv(clog, 0, NULL, NULL, 716 CTLFLAG_PERMANENT, 717 CTLTYPE_NODE, "inet", NULL, 718 NULL, 0, NULL, 0, 719 CTL_NET, PF_INET, CTL_EOL); 720 sysctl_createv(clog, 0, NULL, NULL, 721 CTLFLAG_PERMANENT, 722 CTLTYPE_NODE, "raw", 723 SYSCTL_DESCR("Raw IPv4 settings"), 724 NULL, 0, NULL, 0, 725 CTL_NET, PF_INET, IPPROTO_RAW, CTL_EOL); 726 727 sysctl_createv(clog, 0, NULL, NULL, 728 CTLFLAG_PERMANENT, 729 CTLTYPE_STRUCT, "pcblist", 730 SYSCTL_DESCR("Raw IPv4 control block list"), 731 sysctl_inpcblist, 0, &rawcbtable, 0, 732 CTL_NET, PF_INET, IPPROTO_RAW, 733 CTL_CREATE, CTL_EOL); 734 } 735
Indexes created Mon Sep 29 21:09:56 GMT 2025