raw_ip.c revision 1.129
1 /* $NetBSD: raw_ip.c,v 1.129 2014/07/07 07:09:58 rtr 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 1.129 2014/07/07 07:09:58 rtr 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 (ipsec_used && 216 ipsec4_in_reject_so(m, last->inp_socket)) { 217 IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); 218 /* do not inject data to pcb */ 219 } 220 #endif /*IPSEC*/ 221 else if ((n = m_copypacket(m, M_DONTWAIT)) != NULL) { 222 rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, 223 n); 224 opts = NULL; 225 } 226 last = inp; 227 } 228 #if defined(IPSEC) 229 /* check AH/ESP integrity. */ 230 if (ipsec_used && last != NULL 231 && ipsec4_in_reject_so(m, last->inp_socket)) { 232 m_freem(m); 233 IPSEC_STATINC(IPSEC_STAT_IN_POLVIO); 234 IP_STATDEC(IP_STAT_DELIVERED); 235 /* do not inject data to pcb */ 236 } else 237 #endif /*IPSEC*/ 238 if (last != NULL) 239 rip_sbappendaddr(last, ip, sintosa(&ripsrc), hlen, opts, m); 240 else if (inetsw[ip_protox[ip->ip_p]].pr_input == rip_input) { 241 uint64_t *ips; 242 243 icmp_error(m, ICMP_UNREACH, ICMP_UNREACH_PROTOCOL, 244 0, 0); 245 ips = IP_STAT_GETREF(); 246 ips[IP_STAT_NOPROTO]++; 247 ips[IP_STAT_DELIVERED]--; 248 IP_STAT_PUTREF(); 249 } else 250 m_freem(m); 251 return; 252 } 253 254 int 255 rip_pcbnotify(struct inpcbtable *table, 256 struct in_addr faddr, struct in_addr laddr, int proto, int errno, 257 void (*notify)(struct inpcb *, int)) 258 { 259 struct inpcb_hdr *inph, *ninph; 260 int nmatch; 261 262 nmatch = 0; 263 TAILQ_FOREACH_SAFE(inph, &table->inpt_queue, inph_queue, ninph) { 264 struct inpcb *inp = (struct inpcb *)inph; 265 if (inp->inp_af != AF_INET) 266 continue; 267 if (inp->inp_ip.ip_p && inp->inp_ip.ip_p != proto) 268 continue; 269 if (in_hosteq(inp->inp_faddr, faddr) && 270 in_hosteq(inp->inp_laddr, laddr)) { 271 (*notify)(inp, errno); 272 nmatch++; 273 } 274 } 275 276 return nmatch; 277 } 278 279 void * 280 rip_ctlinput(int cmd, const struct sockaddr *sa, void *v) 281 { 282 struct ip *ip = v; 283 void (*notify)(struct inpcb *, int) = in_rtchange; 284 int errno; 285 286 if (sa->sa_family != AF_INET || 287 sa->sa_len != sizeof(struct sockaddr_in)) 288 return NULL; 289 if ((unsigned)cmd >= PRC_NCMDS) 290 return NULL; 291 errno = inetctlerrmap[cmd]; 292 if (PRC_IS_REDIRECT(cmd)) 293 notify = in_rtchange, ip = 0; 294 else if (cmd == PRC_HOSTDEAD) 295 ip = 0; 296 else if (errno == 0) 297 return NULL; 298 if (ip) { 299 rip_pcbnotify(&rawcbtable, satocsin(sa)->sin_addr, 300 ip->ip_src, ip->ip_p, errno, notify); 301 302 /* XXX mapped address case */ 303 } else 304 in_pcbnotifyall(&rawcbtable, satocsin(sa)->sin_addr, errno, 305 notify); 306 return NULL; 307 } 308 309 /* 310 * Generate IP header and pass packet to ip_output. 311 * Tack on options user may have setup with control call. 312 */ 313 int 314 rip_output(struct mbuf *m, ...) 315 { 316 struct inpcb *inp; 317 struct ip *ip; 318 struct mbuf *opts; 319 int flags; 320 va_list ap; 321 322 va_start(ap, m); 323 inp = va_arg(ap, struct inpcb *); 324 va_end(ap); 325 326 flags = 327 (inp->inp_socket->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST 328 | IP_RETURNMTU; 329 330 /* 331 * If the user handed us a complete IP packet, use it. 332 * Otherwise, allocate an mbuf for a header and fill it in. 333 */ 334 if ((inp->inp_flags & INP_HDRINCL) == 0) { 335 if ((m->m_pkthdr.len + sizeof(struct ip)) > IP_MAXPACKET) { 336 m_freem(m); 337 return (EMSGSIZE); 338 } 339 M_PREPEND(m, sizeof(struct ip), M_DONTWAIT); 340 if (!m) 341 return (ENOBUFS); 342 ip = mtod(m, struct ip *); 343 ip->ip_tos = 0; 344 ip->ip_off = htons(0); 345 ip->ip_p = inp->inp_ip.ip_p; 346 ip->ip_len = htons(m->m_pkthdr.len); 347 ip->ip_src = inp->inp_laddr; 348 ip->ip_dst = inp->inp_faddr; 349 ip->ip_ttl = MAXTTL; 350 opts = inp->inp_options; 351 } else { 352 if (m->m_pkthdr.len > IP_MAXPACKET) { 353 m_freem(m); 354 return (EMSGSIZE); 355 } 356 ip = mtod(m, struct ip *); 357 358 /* 359 * If the mbuf is read-only, we need to allocate 360 * a new mbuf for the header, since we need to 361 * modify the header. 362 */ 363 if (M_READONLY(m)) { 364 int hlen = ip->ip_hl << 2; 365 366 m = m_copyup(m, hlen, (max_linkhdr + 3) & ~3); 367 if (m == NULL) 368 return (ENOMEM); /* XXX */ 369 ip = mtod(m, struct ip *); 370 } 371 372 /* XXX userland passes ip_len and ip_off in host order */ 373 if (m->m_pkthdr.len != ip->ip_len) { 374 m_freem(m); 375 return (EINVAL); 376 } 377 HTONS(ip->ip_len); 378 HTONS(ip->ip_off); 379 if (ip->ip_id != 0 || m->m_pkthdr.len < IP_MINFRAGSIZE) 380 flags |= IP_NOIPNEWID; 381 opts = NULL; 382 /* XXX prevent ip_output from overwriting header fields */ 383 flags |= IP_RAWOUTPUT; 384 IP_STATINC(IP_STAT_RAWOUT); 385 } 386 387 /* 388 * IP output. Note: if IP_RETURNMTU flag is set, the MTU size 389 * will be stored in inp_errormtu. 390 */ 391 return ip_output(m, opts, &inp->inp_route, flags, inp->inp_moptions, 392 inp->inp_socket); 393 } 394 395 /* 396 * Raw IP socket option processing. 397 */ 398 int 399 rip_ctloutput(int op, struct socket *so, struct sockopt *sopt) 400 { 401 struct inpcb *inp = sotoinpcb(so); 402 int error = 0; 403 int optval; 404 405 if (sopt->sopt_level == SOL_SOCKET && sopt->sopt_name == SO_NOHEADER) { 406 if (op == PRCO_GETOPT) { 407 optval = (inp->inp_flags & INP_NOHEADER) ? 1 : 0; 408 error = sockopt_set(sopt, &optval, sizeof(optval)); 409 } else if (op == PRCO_SETOPT) { 410 error = sockopt_getint(sopt, &optval); 411 if (error) 412 goto out; 413 if (optval) { 414 inp->inp_flags &= ~INP_HDRINCL; 415 inp->inp_flags |= INP_NOHEADER; 416 } else 417 inp->inp_flags &= ~INP_NOHEADER; 418 } 419 goto out; 420 } else if (sopt->sopt_level != IPPROTO_IP) 421 return ip_ctloutput(op, so, sopt); 422 423 switch (op) { 424 425 case PRCO_SETOPT: 426 switch (sopt->sopt_name) { 427 case IP_HDRINCL: 428 error = sockopt_getint(sopt, &optval); 429 if (error) 430 break; 431 if (optval) 432 inp->inp_flags |= INP_HDRINCL; 433 else 434 inp->inp_flags &= ~INP_HDRINCL; 435 break; 436 437 #ifdef MROUTING 438 case MRT_INIT: 439 case MRT_DONE: 440 case MRT_ADD_VIF: 441 case MRT_DEL_VIF: 442 case MRT_ADD_MFC: 443 case MRT_DEL_MFC: 444 case MRT_ASSERT: 445 case MRT_API_CONFIG: 446 case MRT_ADD_BW_UPCALL: 447 case MRT_DEL_BW_UPCALL: 448 error = ip_mrouter_set(so, sopt); 449 break; 450 #endif 451 452 default: 453 error = ip_ctloutput(op, so, sopt); 454 break; 455 } 456 break; 457 458 case PRCO_GETOPT: 459 switch (sopt->sopt_name) { 460 case IP_HDRINCL: 461 optval = inp->inp_flags & INP_HDRINCL; 462 error = sockopt_set(sopt, &optval, sizeof(optval)); 463 break; 464 465 #ifdef MROUTING 466 case MRT_VERSION: 467 case MRT_ASSERT: 468 case MRT_API_SUPPORT: 469 case MRT_API_CONFIG: 470 error = ip_mrouter_get(so, sopt); 471 break; 472 #endif 473 474 default: 475 error = ip_ctloutput(op, so, sopt); 476 break; 477 } 478 break; 479 } 480 out: 481 return error; 482 } 483 484 int 485 rip_bind(struct inpcb *inp, struct mbuf *nam) 486 { 487 struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); 488 489 if (nam->m_len != sizeof(*addr)) 490 return (EINVAL); 491 if (!IFNET_FIRST()) 492 return (EADDRNOTAVAIL); 493 if (addr->sin_family != AF_INET) 494 return (EAFNOSUPPORT); 495 if (!in_nullhost(addr->sin_addr) && 496 ifa_ifwithaddr(sintosa(addr)) == 0) 497 return (EADDRNOTAVAIL); 498 inp->inp_laddr = addr->sin_addr; 499 return (0); 500 } 501 502 int 503 rip_connect(struct inpcb *inp, struct mbuf *nam) 504 { 505 struct sockaddr_in *addr = mtod(nam, struct sockaddr_in *); 506 507 if (nam->m_len != sizeof(*addr)) 508 return (EINVAL); 509 if (!IFNET_FIRST()) 510 return (EADDRNOTAVAIL); 511 if (addr->sin_family != AF_INET) 512 return (EAFNOSUPPORT); 513 inp->inp_faddr = addr->sin_addr; 514 return (0); 515 } 516 517 void 518 rip_disconnect(struct inpcb *inp) 519 { 520 521 inp->inp_faddr = zeroin_addr; 522 } 523 524 static int 525 rip_attach(struct socket *so, int proto) 526 { 527 struct inpcb *inp; 528 int error; 529 530 KASSERT(sotoinpcb(so) == NULL); 531 sosetlock(so); 532 533 if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) { 534 error = soreserve(so, rip_sendspace, rip_recvspace); 535 if (error) { 536 return error; 537 } 538 } 539 540 error = in_pcballoc(so, &rawcbtable); 541 if (error) { 542 return error; 543 } 544 inp = sotoinpcb(so); 545 inp->inp_ip.ip_p = proto; 546 KASSERT(solocked(so)); 547 548 return 0; 549 } 550 551 static void 552 rip_detach(struct socket *so) 553 { 554 struct inpcb *inp; 555 556 KASSERT(solocked(so)); 557 inp = sotoinpcb(so); 558 KASSERT(inp != NULL); 559 560 #ifdef MROUTING 561 extern struct socket *ip_mrouter; 562 if (so == ip_mrouter) { 563 ip_mrouter_done(); 564 } 565 #endif 566 in_pcbdetach(inp); 567 } 568 569 static int 570 rip_ioctl(struct socket *so, u_long cmd, void *nam, struct ifnet *ifp) 571 { 572 return in_control(so, cmd, nam, ifp); 573 } 574 575 static int 576 rip_stat(struct socket *so, struct stat *ub) 577 { 578 return EOPNOTSUPP; 579 } 580 581 int 582 rip_usrreq(struct socket *so, int req, struct mbuf *m, struct mbuf *nam, 583 struct mbuf *control, struct lwp *l) 584 { 585 struct inpcb *inp; 586 int s, error = 0; 587 588 KASSERT(req != PRU_ATTACH); 589 KASSERT(req != PRU_DETACH); 590 KASSERT(req != PRU_CONTROL); 591 KASSERT(req != PRU_SENSE); 592 593 s = splsoftnet(); 594 if (req == PRU_PURGEIF) { 595 mutex_enter(softnet_lock); 596 in_pcbpurgeif0(&rawcbtable, (struct ifnet *)control); 597 in_purgeif((struct ifnet *)control); 598 in_pcbpurgeif(&rawcbtable, (struct ifnet *)control); 599 mutex_exit(softnet_lock); 600 splx(s); 601 return 0; 602 } 603 604 KASSERT(solocked(so)); 605 inp = sotoinpcb(so); 606 607 KASSERT(!control || (req == PRU_SEND || req == PRU_SENDOOB)); 608 if (inp == NULL) { 609 splx(s); 610 return EINVAL; 611 } 612 613 switch (req) { 614 615 case PRU_BIND: 616 error = rip_bind(inp, nam); 617 break; 618 619 case PRU_LISTEN: 620 error = EOPNOTSUPP; 621 break; 622 623 case PRU_CONNECT: 624 error = rip_connect(inp, nam); 625 if (error) 626 break; 627 soisconnected(so); 628 break; 629 630 case PRU_CONNECT2: 631 error = EOPNOTSUPP; 632 break; 633 634 case PRU_DISCONNECT: 635 soisdisconnected(so); 636 rip_disconnect(inp); 637 break; 638 639 /* 640 * Mark the connection as being incapable of further input. 641 */ 642 case PRU_SHUTDOWN: 643 socantsendmore(so); 644 break; 645 646 case PRU_RCVD: 647 error = EOPNOTSUPP; 648 break; 649 650 /* 651 * Ship a packet out. The appropriate raw output 652 * routine handles any massaging necessary. 653 */ 654 case PRU_SEND: 655 if (control && control->m_len) { 656 m_freem(control); 657 m_freem(m); 658 error = EINVAL; 659 break; 660 } 661 { 662 if (nam) { 663 if ((so->so_state & SS_ISCONNECTED) != 0) { 664 error = EISCONN; 665 goto die; 666 } 667 error = rip_connect(inp, nam); 668 if (error) { 669 die: 670 m_freem(m); 671 break; 672 } 673 } else { 674 if ((so->so_state & SS_ISCONNECTED) == 0) { 675 error = ENOTCONN; 676 goto die; 677 } 678 } 679 error = rip_output(m, inp); 680 if (nam) 681 rip_disconnect(inp); 682 } 683 break; 684 685 case PRU_RCVOOB: 686 error = EOPNOTSUPP; 687 break; 688 689 case PRU_SENDOOB: 690 m_freem(control); 691 m_freem(m); 692 error = EOPNOTSUPP; 693 break; 694 695 case PRU_SOCKADDR: 696 in_setsockaddr(inp, nam); 697 break; 698 699 case PRU_PEERADDR: 700 in_setpeeraddr(inp, nam); 701 break; 702 703 default: 704 panic("rip_usrreq"); 705 } 706 splx(s); 707 708 return error; 709 } 710 711 PR_WRAP_USRREQS(rip) 712 #define rip_attach rip_attach_wrapper 713 #define rip_detach rip_detach_wrapper 714 #define rip_ioctl rip_ioctl_wrapper 715 #define rip_stat rip_stat_wrapper 716 #define rip_usrreq rip_usrreq_wrapper 717 718 const struct pr_usrreqs rip_usrreqs = { 719 .pr_attach = rip_attach, 720 .pr_detach = rip_detach, 721 .pr_ioctl = rip_ioctl, 722 .pr_stat = rip_stat, 723 .pr_generic = rip_usrreq, 724 }; 725 726 static void 727 sysctl_net_inet_raw_setup(struct sysctllog **clog) 728 { 729 730 sysctl_createv(clog, 0, NULL, NULL, 731 CTLFLAG_PERMANENT, 732 CTLTYPE_NODE, "inet", NULL, 733 NULL, 0, NULL, 0, 734 CTL_NET, PF_INET, CTL_EOL); 735 sysctl_createv(clog, 0, NULL, NULL, 736 CTLFLAG_PERMANENT, 737 CTLTYPE_NODE, "raw", 738 SYSCTL_DESCR("Raw IPv4 settings"), 739 NULL, 0, NULL, 0, 740 CTL_NET, PF_INET, IPPROTO_RAW, CTL_EOL); 741 742 sysctl_createv(clog, 0, NULL, NULL, 743 CTLFLAG_PERMANENT, 744 CTLTYPE_STRUCT, "pcblist", 745 SYSCTL_DESCR("Raw IPv4 control block list"), 746 sysctl_inpcblist, 0, &rawcbtable, 0, 747 CTL_NET, PF_INET, IPPROTO_RAW, 748 CTL_CREATE, CTL_EOL); 749 } 750
Indexes created Mon Sep 29 21:09:56 GMT 2025