1 /* 2 * Copyright (c) 1982, 1986, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)raw_ip.c 8.7 (Berkeley) 5/15/95 34 * $FreeBSD: src/sys/netinet/raw_ip.c,v 1.64.2.16 2003/08/24 08:24:38 hsu Exp $ 35 * $DragonFly: src/sys/netinet/raw_ip.c,v 1.8 2003/09/03 13:19:02 hmp Exp $ 36 */ 37 38 #include "opt_inet6.h" 39 #include "opt_ipsec.h" 40 #include "opt_random_ip_id.h" 41 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/malloc.h> 46 #include <sys/mbuf.h> 47 #include <sys/proc.h> 48 #include <sys/protosw.h> 49 #include <sys/socket.h> 50 #include <sys/socketvar.h> 51 #include <sys/sysctl.h> 52 53 #include <vm/vm_zone.h> 54 55 #include <net/if.h> 56 #include <net/route.h> 57 58 #define _IP_VHL 59 #include <netinet/in.h> 60 #include <netinet/in_systm.h> 61 #include <netinet/ip.h> 62 #include <netinet/in_pcb.h> 63 #include <netinet/in_var.h> 64 #include <netinet/ip_var.h> 65 66 #include <net/ip_mroute/ip_mroute.h> 67 #include <net/ipfw/ip_fw.h> 68 #include <net/dummynet/ip_dummynet.h> 69 70 #ifdef FAST_IPSEC 71 #include <netipsec/ipsec.h> 72 #endif /*FAST_IPSEC*/ 73 74 #ifdef IPSEC 75 #include <netinet6/ipsec.h> 76 #endif /*IPSEC*/ 77 78 struct inpcbhead ripcb; 79 struct inpcbinfo ripcbinfo; 80 81 /* control hooks for ipfw and dummynet */ 82 ip_fw_ctl_t *ip_fw_ctl_ptr; 83 ip_dn_ctl_t *ip_dn_ctl_ptr; 84 85 /* 86 * hooks for multicast routing. They all default to NULL, 87 * so leave them not initialized and rely on BSS being set to 0. 88 */ 89 90 /* The socket used to communicate with the multicast routing daemon. */ 91 struct socket *ip_mrouter; 92 93 /* The various mrouter and rsvp functions */ 94 int (*ip_mrouter_set)(struct socket *, struct sockopt *); 95 int (*ip_mrouter_get)(struct socket *, struct sockopt *); 96 int (*ip_mrouter_done)(void); 97 int (*ip_mforward)(struct ip *, struct ifnet *, struct mbuf *, 98 struct ip_moptions *); 99 int (*mrt_ioctl)(int, caddr_t); 100 int (*legal_vif_num)(int); 101 u_long (*ip_mcast_src)(int); 102 103 void (*rsvp_input_p)(struct mbuf *m, int off, int proto); 104 int (*ip_rsvp_vif)(struct socket *, struct sockopt *); 105 void (*ip_rsvp_force_done)(struct socket *); 106 107 /* 108 * Nominal space allocated to a raw ip socket. 109 */ 110 #define RIPSNDQ 8192 111 #define RIPRCVQ 8192 112 113 /* 114 * Raw interface to IP protocol. 115 */ 116 117 /* 118 * Initialize raw connection block queue. 119 */ 120 void 121 rip_init(void) 122 { 123 LIST_INIT(&ripcb); 124 ripcbinfo.listhead = &ripcb; 125 /* 126 * XXX We don't use the hash list for raw IP, but it's easier 127 * to allocate a one entry hash list than it is to check all 128 * over the place for hashbase == NULL. 129 */ 130 ripcbinfo.hashbase = hashinit(1, M_PCB, &ripcbinfo.hashmask); 131 ripcbinfo.porthashbase = hashinit(1, M_PCB, &ripcbinfo.porthashmask); 132 ripcbinfo.ipi_zone = zinit("ripcb", sizeof(struct inpcb), 133 maxsockets, ZONE_INTERRUPT, 0); 134 } 135 136 /* 137 * XXX ripsrc is modified in rip_input, so we must be fix this 138 * when we want to make this code smp-friendly. 139 */ 140 static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; 141 142 /* 143 * Setup generic address and protocol structures 144 * for raw_input routine, then pass them along with 145 * mbuf chain. 146 */ 147 void 148 rip_input(struct mbuf *m, int off, int proto) 149 { 150 struct ip *ip = mtod(m, struct ip *); 151 struct inpcb *inp; 152 struct inpcb *last = NULL; 153 struct mbuf *opts = NULL; 154 155 ripsrc.sin_addr = ip->ip_src; 156 LIST_FOREACH(inp, &ripcb, inp_list) { 157 #ifdef INET6 158 if ((inp->inp_vflag & INP_IPV4) == 0) 159 continue; 160 #endif 161 if (inp->inp_ip_p && inp->inp_ip_p != proto) 162 continue; 163 if (inp->inp_laddr.s_addr != INADDR_ANY && 164 inp->inp_laddr.s_addr != ip->ip_dst.s_addr) 165 continue; 166 if (inp->inp_faddr.s_addr != INADDR_ANY && 167 inp->inp_faddr.s_addr != ip->ip_src.s_addr) 168 continue; 169 if (last) { 170 struct mbuf *n = m_copypacket(m, M_DONTWAIT); 171 172 #ifdef IPSEC 173 /* check AH/ESP integrity. */ 174 if (n && ipsec4_in_reject_so(n, last->inp_socket)) { 175 m_freem(n); 176 ipsecstat.in_polvio++; 177 /* do not inject data to pcb */ 178 } else 179 #endif /*IPSEC*/ 180 #ifdef FAST_IPSEC 181 /* check AH/ESP integrity. */ 182 if (ipsec4_in_reject(n, last)) { 183 m_freem(n); 184 /* do not inject data to pcb */ 185 } else 186 #endif /*FAST_IPSEC*/ 187 if (n) { 188 if (last->inp_flags & INP_CONTROLOPTS || 189 last->inp_socket->so_options & SO_TIMESTAMP) 190 ip_savecontrol(last, &opts, ip, n); 191 if (sbappendaddr(&last->inp_socket->so_rcv, 192 (struct sockaddr *)&ripsrc, n, 193 opts) == 0) { 194 /* should notify about lost packet */ 195 m_freem(n); 196 if (opts) 197 m_freem(opts); 198 } else 199 sorwakeup(last->inp_socket); 200 opts = 0; 201 } 202 } 203 last = inp; 204 } 205 #ifdef IPSEC 206 /* check AH/ESP integrity. */ 207 if (last && ipsec4_in_reject_so(m, last->inp_socket)) { 208 m_freem(m); 209 ipsecstat.in_polvio++; 210 ipstat.ips_delivered--; 211 /* do not inject data to pcb */ 212 } else 213 #endif /*IPSEC*/ 214 #ifdef FAST_IPSEC 215 /* check AH/ESP integrity. */ 216 if (last && ipsec4_in_reject(m, last)) { 217 m_freem(m); 218 ipstat.ips_delivered--; 219 /* do not inject data to pcb */ 220 } else 221 #endif /*FAST_IPSEC*/ 222 if (last) { 223 if (last->inp_flags & INP_CONTROLOPTS || 224 last->inp_socket->so_options & SO_TIMESTAMP) 225 ip_savecontrol(last, &opts, ip, m); 226 if (sbappendaddr(&last->inp_socket->so_rcv, 227 (struct sockaddr *)&ripsrc, m, opts) == 0) { 228 m_freem(m); 229 if (opts) 230 m_freem(opts); 231 } else 232 sorwakeup(last->inp_socket); 233 } else { 234 m_freem(m); 235 ipstat.ips_noproto++; 236 ipstat.ips_delivered--; 237 } 238 } 239 240 /* 241 * Generate IP header and pass packet to ip_output. 242 * Tack on options user may have setup with control call. 243 */ 244 int 245 rip_output(struct mbuf *m, struct socket *so, u_long dst) 246 { 247 struct ip *ip; 248 struct inpcb *inp = sotoinpcb(so); 249 int flags = (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST; 250 251 /* 252 * If the user handed us a complete IP packet, use it. 253 * Otherwise, allocate an mbuf for a header and fill it in. 254 */ 255 if ((inp->inp_flags & INP_HDRINCL) == 0) { 256 if (m->m_pkthdr.len + sizeof(struct ip) > IP_MAXPACKET) { 257 m_freem(m); 258 return(EMSGSIZE); 259 } 260 M_PREPEND(m, sizeof(struct ip), M_WAIT); 261 if (m == NULL) 262 return(ENOBUFS); 263 ip = mtod(m, struct ip *); 264 ip->ip_tos = inp->inp_ip_tos; 265 ip->ip_off = 0; 266 ip->ip_p = inp->inp_ip_p; 267 ip->ip_len = m->m_pkthdr.len; 268 ip->ip_src = inp->inp_laddr; 269 ip->ip_dst.s_addr = dst; 270 ip->ip_ttl = inp->inp_ip_ttl; 271 } else { 272 if (m->m_pkthdr.len > IP_MAXPACKET) { 273 m_freem(m); 274 return(EMSGSIZE); 275 } 276 ip = mtod(m, struct ip *); 277 /* don't allow both user specified and setsockopt options, 278 and don't allow packet length sizes that will crash */ 279 if (((IP_VHL_HL(ip->ip_vhl) != (sizeof (*ip) >> 2)) 280 && inp->inp_options) 281 || (ip->ip_len > m->m_pkthdr.len) 282 || (ip->ip_len < (IP_VHL_HL(ip->ip_vhl) << 2))) { 283 m_freem(m); 284 return EINVAL; 285 } 286 if (ip->ip_id == 0) 287 #ifdef RANDOM_IP_ID 288 ip->ip_id = ip_randomid(); 289 #else 290 ip->ip_id = htons(ip_id++); 291 #endif 292 /* XXX prevent ip_output from overwriting header fields */ 293 flags |= IP_RAWOUTPUT; 294 ipstat.ips_rawout++; 295 } 296 297 return (ip_output(m, inp->inp_options, &inp->inp_route, flags, 298 inp->inp_moptions, inp)); 299 } 300 301 /* 302 * Raw IP socket option processing. 303 */ 304 int 305 rip_ctloutput(struct socket *so, struct sockopt *sopt) 306 { 307 struct inpcb *inp = sotoinpcb(so); 308 int error, optval; 309 310 if (sopt->sopt_level != IPPROTO_IP) 311 return (EINVAL); 312 313 error = 0; 314 315 switch (sopt->sopt_dir) { 316 case SOPT_GET: 317 switch (sopt->sopt_name) { 318 case IP_HDRINCL: 319 optval = inp->inp_flags & INP_HDRINCL; 320 error = sooptcopyout(sopt, &optval, sizeof optval); 321 break; 322 323 case IP_FW_ADD: /* ADD actually returns the body... */ 324 case IP_FW_GET: 325 if (IPFW_LOADED) 326 error = ip_fw_ctl_ptr(sopt); 327 else 328 error = ENOPROTOOPT; 329 break; 330 331 case IP_DUMMYNET_GET: 332 if (DUMMYNET_LOADED) 333 error = ip_dn_ctl_ptr(sopt); 334 else 335 error = ENOPROTOOPT; 336 break ; 337 338 case MRT_INIT: 339 case MRT_DONE: 340 case MRT_ADD_VIF: 341 case MRT_DEL_VIF: 342 case MRT_ADD_MFC: 343 case MRT_DEL_MFC: 344 case MRT_VERSION: 345 case MRT_ASSERT: 346 case MRT_API_SUPPORT: 347 case MRT_API_CONFIG: 348 case MRT_ADD_BW_UPCALL: 349 case MRT_DEL_BW_UPCALL: 350 error = ip_mrouter_get ? ip_mrouter_get(so, sopt) : 351 EOPNOTSUPP; 352 break; 353 354 default: 355 error = ip_ctloutput(so, sopt); 356 break; 357 } 358 break; 359 360 case SOPT_SET: 361 switch (sopt->sopt_name) { 362 case IP_HDRINCL: 363 error = sooptcopyin(sopt, &optval, sizeof optval, 364 sizeof optval); 365 if (error) 366 break; 367 if (optval) 368 inp->inp_flags |= INP_HDRINCL; 369 else 370 inp->inp_flags &= ~INP_HDRINCL; 371 break; 372 373 case IP_FW_ADD: 374 case IP_FW_DEL: 375 case IP_FW_FLUSH: 376 case IP_FW_ZERO: 377 case IP_FW_RESETLOG: 378 if (IPFW_LOADED) 379 error = ip_fw_ctl_ptr(sopt); 380 else 381 error = ENOPROTOOPT; 382 break; 383 384 case IP_DUMMYNET_CONFIGURE: 385 case IP_DUMMYNET_DEL: 386 case IP_DUMMYNET_FLUSH: 387 if (DUMMYNET_LOADED) 388 error = ip_dn_ctl_ptr(sopt); 389 else 390 error = ENOPROTOOPT ; 391 break ; 392 393 case IP_RSVP_ON: 394 error = ip_rsvp_init(so); 395 break; 396 397 case IP_RSVP_OFF: 398 error = ip_rsvp_done(); 399 break; 400 401 case IP_RSVP_VIF_ON: 402 case IP_RSVP_VIF_OFF: 403 error = ip_rsvp_vif ? 404 ip_rsvp_vif(so, sopt) : EINVAL; 405 break; 406 407 case MRT_INIT: 408 case MRT_DONE: 409 case MRT_ADD_VIF: 410 case MRT_DEL_VIF: 411 case MRT_ADD_MFC: 412 case MRT_DEL_MFC: 413 case MRT_VERSION: 414 case MRT_ASSERT: 415 case MRT_API_SUPPORT: 416 case MRT_API_CONFIG: 417 case MRT_ADD_BW_UPCALL: 418 case MRT_DEL_BW_UPCALL: 419 error = ip_mrouter_set ? ip_mrouter_set(so, sopt) : 420 EOPNOTSUPP; 421 break; 422 423 default: 424 error = ip_ctloutput(so, sopt); 425 break; 426 } 427 break; 428 } 429 430 return (error); 431 } 432 433 /* 434 * This function exists solely to receive the PRC_IFDOWN messages which 435 * are sent by if_down(). It looks for an ifaddr whose ifa_addr is sa, 436 * and calls in_ifadown() to remove all routes corresponding to that address. 437 * It also receives the PRC_IFUP messages from if_up() and reinstalls the 438 * interface routes. 439 */ 440 void 441 rip_ctlinput(int cmd, struct sockaddr *sa, void *vip) 442 { 443 struct in_ifaddr *ia; 444 struct ifnet *ifp; 445 int err; 446 int flags; 447 448 switch (cmd) { 449 case PRC_IFDOWN: 450 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) { 451 if (ia->ia_ifa.ifa_addr == sa 452 && (ia->ia_flags & IFA_ROUTE)) { 453 /* 454 * in_ifscrub kills the interface route. 455 */ 456 in_ifscrub(ia->ia_ifp, ia); 457 /* 458 * in_ifadown gets rid of all the rest of 459 * the routes. This is not quite the right 460 * thing to do, but at least if we are running 461 * a routing process they will come back. 462 */ 463 in_ifadown(&ia->ia_ifa, 0); 464 break; 465 } 466 } 467 break; 468 469 case PRC_IFUP: 470 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) { 471 if (ia->ia_ifa.ifa_addr == sa) 472 break; 473 } 474 if (ia == 0 || (ia->ia_flags & IFA_ROUTE)) 475 return; 476 flags = RTF_UP; 477 ifp = ia->ia_ifa.ifa_ifp; 478 479 if ((ifp->if_flags & IFF_LOOPBACK) 480 || (ifp->if_flags & IFF_POINTOPOINT)) 481 flags |= RTF_HOST; 482 483 err = rtinit(&ia->ia_ifa, RTM_ADD, flags); 484 if (err == 0) 485 ia->ia_flags |= IFA_ROUTE; 486 break; 487 } 488 } 489 490 u_long rip_sendspace = RIPSNDQ; 491 u_long rip_recvspace = RIPRCVQ; 492 493 SYSCTL_INT(_net_inet_raw, OID_AUTO, maxdgram, CTLFLAG_RW, 494 &rip_sendspace, 0, "Maximum outgoing raw IP datagram size"); 495 SYSCTL_INT(_net_inet_raw, OID_AUTO, recvspace, CTLFLAG_RW, 496 &rip_recvspace, 0, "Maximum incoming raw IP datagram size"); 497 498 static int 499 rip_attach(struct socket *so, int proto, struct thread *td) 500 { 501 struct inpcb *inp; 502 int error, s; 503 504 inp = sotoinpcb(so); 505 if (inp) 506 panic("rip_attach"); 507 if ((error = suser(td)) != 0) 508 return error; 509 510 error = soreserve(so, rip_sendspace, rip_recvspace); 511 if (error) 512 return error; 513 s = splnet(); 514 error = in_pcballoc(so, &ripcbinfo, td); 515 splx(s); 516 if (error) 517 return error; 518 inp = (struct inpcb *)so->so_pcb; 519 inp->inp_vflag |= INP_IPV4; 520 inp->inp_ip_p = proto; 521 inp->inp_ip_ttl = ip_defttl; 522 return 0; 523 } 524 525 static int 526 rip_detach(struct socket *so) 527 { 528 struct inpcb *inp; 529 530 inp = sotoinpcb(so); 531 if (inp == 0) 532 panic("rip_detach"); 533 if (so == ip_mrouter && ip_mrouter_done) 534 ip_mrouter_done(); 535 if (ip_rsvp_force_done) 536 ip_rsvp_force_done(so); 537 if (so == ip_rsvpd) 538 ip_rsvp_done(); 539 in_pcbdetach(inp); 540 return 0; 541 } 542 543 static int 544 rip_abort(struct socket *so) 545 { 546 soisdisconnected(so); 547 if (so->so_state & SS_NOFDREF) 548 return rip_detach(so); 549 return 0; 550 } 551 552 static int 553 rip_disconnect(struct socket *so) 554 { 555 if ((so->so_state & SS_ISCONNECTED) == 0) 556 return ENOTCONN; 557 return rip_abort(so); 558 } 559 560 static int 561 rip_bind(struct socket *so, struct sockaddr *nam, struct thread *td) 562 { 563 struct inpcb *inp = sotoinpcb(so); 564 struct sockaddr_in *addr = (struct sockaddr_in *)nam; 565 566 if (nam->sa_len != sizeof(*addr)) 567 return EINVAL; 568 569 if (TAILQ_EMPTY(&ifnet) || ((addr->sin_family != AF_INET) && 570 (addr->sin_family != AF_IMPLINK)) || 571 (addr->sin_addr.s_addr != INADDR_ANY && 572 ifa_ifwithaddr((struct sockaddr *)addr) == 0)) 573 return EADDRNOTAVAIL; 574 inp->inp_laddr = addr->sin_addr; 575 return 0; 576 } 577 578 static int 579 rip_connect(struct socket *so, struct sockaddr *nam, struct thread *td) 580 { 581 struct inpcb *inp = sotoinpcb(so); 582 struct sockaddr_in *addr = (struct sockaddr_in *)nam; 583 584 if (nam->sa_len != sizeof(*addr)) 585 return EINVAL; 586 if (TAILQ_EMPTY(&ifnet)) 587 return EADDRNOTAVAIL; 588 if ((addr->sin_family != AF_INET) && 589 (addr->sin_family != AF_IMPLINK)) 590 return EAFNOSUPPORT; 591 inp->inp_faddr = addr->sin_addr; 592 soisconnected(so); 593 return 0; 594 } 595 596 static int 597 rip_shutdown(struct socket *so) 598 { 599 socantsendmore(so); 600 return 0; 601 } 602 603 static int 604 rip_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam, 605 struct mbuf *control, struct thread *td) 606 { 607 struct inpcb *inp = sotoinpcb(so); 608 u_long dst; 609 610 if (so->so_state & SS_ISCONNECTED) { 611 if (nam) { 612 m_freem(m); 613 return EISCONN; 614 } 615 dst = inp->inp_faddr.s_addr; 616 } else { 617 if (nam == NULL) { 618 m_freem(m); 619 return ENOTCONN; 620 } 621 dst = ((struct sockaddr_in *)nam)->sin_addr.s_addr; 622 } 623 return rip_output(m, so, dst); 624 } 625 626 static int 627 rip_pcblist(SYSCTL_HANDLER_ARGS) 628 { 629 int error, i, n, s; 630 struct inpcb *inp, **inp_list; 631 inp_gen_t gencnt; 632 struct xinpgen xig; 633 634 /* 635 * The process of preparing the TCB list is too time-consuming and 636 * resource-intensive to repeat twice on every request. 637 */ 638 if (req->oldptr == 0) { 639 n = ripcbinfo.ipi_count; 640 req->oldidx = 2 * (sizeof xig) 641 + (n + n/8) * sizeof(struct xinpcb); 642 return 0; 643 } 644 645 if (req->newptr != 0) 646 return EPERM; 647 648 /* 649 * OK, now we're committed to doing something. 650 */ 651 s = splnet(); 652 gencnt = ripcbinfo.ipi_gencnt; 653 n = ripcbinfo.ipi_count; 654 splx(s); 655 656 xig.xig_len = sizeof xig; 657 xig.xig_count = n; 658 xig.xig_gen = gencnt; 659 xig.xig_sogen = so_gencnt; 660 error = SYSCTL_OUT(req, &xig, sizeof xig); 661 if (error) 662 return error; 663 664 inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK); 665 if (inp_list == 0) 666 return ENOMEM; 667 668 s = splnet(); 669 for (inp = LIST_FIRST(ripcbinfo.listhead), i = 0; inp && i < n; 670 inp = LIST_NEXT(inp, inp_list)) { 671 if (inp->inp_gencnt <= gencnt) 672 inp_list[i++] = inp; 673 } 674 splx(s); 675 n = i; 676 677 error = 0; 678 for (i = 0; i < n; i++) { 679 inp = inp_list[i]; 680 if (inp->inp_gencnt <= gencnt) { 681 struct xinpcb xi; 682 xi.xi_len = sizeof xi; 683 /* XXX should avoid extra copy */ 684 bcopy(inp, &xi.xi_inp, sizeof *inp); 685 if (inp->inp_socket) 686 sotoxsocket(inp->inp_socket, &xi.xi_socket); 687 error = SYSCTL_OUT(req, &xi, sizeof xi); 688 } 689 } 690 if (!error) { 691 /* 692 * Give the user an updated idea of our state. 693 * If the generation differs from what we told 694 * her before, she knows that something happened 695 * while we were processing this request, and it 696 * might be necessary to retry. 697 */ 698 s = splnet(); 699 xig.xig_gen = ripcbinfo.ipi_gencnt; 700 xig.xig_sogen = so_gencnt; 701 xig.xig_count = ripcbinfo.ipi_count; 702 splx(s); 703 error = SYSCTL_OUT(req, &xig, sizeof xig); 704 } 705 free(inp_list, M_TEMP); 706 return error; 707 } 708 709 SYSCTL_PROC(_net_inet_raw, OID_AUTO/*XXX*/, pcblist, CTLFLAG_RD, 0, 0, 710 rip_pcblist, "S,xinpcb", "List of active raw IP sockets"); 711 712 struct pr_usrreqs rip_usrreqs = { 713 rip_abort, pru_accept_notsupp, rip_attach, rip_bind, rip_connect, 714 pru_connect2_notsupp, in_control, rip_detach, rip_disconnect, 715 pru_listen_notsupp, in_setpeeraddr, pru_rcvd_notsupp, 716 pru_rcvoob_notsupp, rip_send, pru_sense_null, rip_shutdown, 717 in_setsockaddr, sosend, soreceive, sopoll 718 }; 719