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 1.11 2004/03/06 05:00:41 hsu 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 inpcbinfo ripcbinfo; 79 80 /* control hooks for ipfw and dummynet */ 81 ip_fw_ctl_t *ip_fw_ctl_ptr; 82 ip_dn_ctl_t *ip_dn_ctl_ptr; 83 84 /* 85 * hooks for multicast routing. They all default to NULL, 86 * so leave them not initialized and rely on BSS being set to 0. 87 */ 88 89 /* The socket used to communicate with the multicast routing daemon. */ 90 struct socket *ip_mrouter; 91 92 /* The various mrouter and rsvp functions */ 93 int (*ip_mrouter_set)(struct socket *, struct sockopt *); 94 int (*ip_mrouter_get)(struct socket *, struct sockopt *); 95 int (*ip_mrouter_done)(void); 96 int (*ip_mforward)(struct ip *, struct ifnet *, struct mbuf *, 97 struct ip_moptions *); 98 int (*mrt_ioctl)(int, caddr_t); 99 int (*legal_vif_num)(int); 100 u_long (*ip_mcast_src)(int); 101 102 void (*rsvp_input_p)(struct mbuf *m, int off, int proto); 103 int (*ip_rsvp_vif)(struct socket *, struct sockopt *); 104 void (*ip_rsvp_force_done)(struct socket *); 105 106 /* 107 * Nominal space allocated to a raw ip socket. 108 */ 109 #define RIPSNDQ 8192 110 #define RIPRCVQ 8192 111 112 /* 113 * Raw interface to IP protocol. 114 */ 115 116 /* 117 * Initialize raw connection block queue. 118 */ 119 void 120 rip_init(void) 121 { 122 LIST_INIT(&ripcbinfo.listhead); 123 /* 124 * XXX We don't use the hash list for raw IP, but it's easier 125 * to allocate a one entry hash list than it is to check all 126 * over the place for hashbase == NULL. 127 */ 128 ripcbinfo.hashbase = hashinit(1, M_PCB, &ripcbinfo.hashmask); 129 ripcbinfo.porthashbase = hashinit(1, M_PCB, &ripcbinfo.porthashmask); 130 ripcbinfo.bindhashbase = hashinit(1, M_PCB, &ripcbinfo.bindhashmask); 131 ripcbinfo.ipi_zone = zinit("ripcb", sizeof(struct inpcb), 132 maxsockets, ZONE_INTERRUPT, 0); 133 } 134 135 /* 136 * XXX ripsrc is modified in rip_input, so we must be fix this 137 * when we want to make this code smp-friendly. 138 */ 139 static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; 140 141 /* 142 * Setup generic address and protocol structures 143 * for raw_input routine, then pass them along with 144 * mbuf chain. 145 */ 146 void 147 rip_input(struct mbuf *m, int off, int proto) 148 { 149 struct ip *ip = mtod(m, struct ip *); 150 struct inpcb *inp; 151 struct inpcb *last = NULL; 152 struct mbuf *opts = NULL; 153 154 ripsrc.sin_addr = ip->ip_src; 155 LIST_FOREACH(inp, &ripcbinfo.listhead, inp_list) { 156 #ifdef INET6 157 if ((inp->inp_vflag & INP_IPV4) == 0) 158 continue; 159 #endif 160 if (inp->inp_ip_p && inp->inp_ip_p != proto) 161 continue; 162 if (inp->inp_laddr.s_addr != INADDR_ANY && 163 inp->inp_laddr.s_addr != ip->ip_dst.s_addr) 164 continue; 165 if (inp->inp_faddr.s_addr != INADDR_ANY && 166 inp->inp_faddr.s_addr != ip->ip_src.s_addr) 167 continue; 168 if (last) { 169 struct mbuf *n = m_copypacket(m, M_DONTWAIT); 170 171 #ifdef IPSEC 172 /* check AH/ESP integrity. */ 173 if (n && ipsec4_in_reject_so(n, last->inp_socket)) { 174 m_freem(n); 175 ipsecstat.in_polvio++; 176 /* do not inject data to pcb */ 177 } else 178 #endif /*IPSEC*/ 179 #ifdef FAST_IPSEC 180 /* check AH/ESP integrity. */ 181 if (ipsec4_in_reject(n, last)) { 182 m_freem(n); 183 /* do not inject data to pcb */ 184 } else 185 #endif /*FAST_IPSEC*/ 186 if (n) { 187 if (last->inp_flags & INP_CONTROLOPTS || 188 last->inp_socket->so_options & SO_TIMESTAMP) 189 ip_savecontrol(last, &opts, ip, n); 190 if (sbappendaddr(&last->inp_socket->so_rcv, 191 (struct sockaddr *)&ripsrc, n, 192 opts) == 0) { 193 /* should notify about lost packet */ 194 m_freem(n); 195 if (opts) 196 m_freem(opts); 197 } else 198 sorwakeup(last->inp_socket); 199 opts = 0; 200 } 201 } 202 last = inp; 203 } 204 #ifdef IPSEC 205 /* check AH/ESP integrity. */ 206 if (last && ipsec4_in_reject_so(m, last->inp_socket)) { 207 m_freem(m); 208 ipsecstat.in_polvio++; 209 ipstat.ips_delivered--; 210 /* do not inject data to pcb */ 211 } else 212 #endif /*IPSEC*/ 213 #ifdef FAST_IPSEC 214 /* check AH/ESP integrity. */ 215 if (last && ipsec4_in_reject(m, last)) { 216 m_freem(m); 217 ipstat.ips_delivered--; 218 /* do not inject data to pcb */ 219 } else 220 #endif /*FAST_IPSEC*/ 221 if (last) { 222 if (last->inp_flags & INP_CONTROLOPTS || 223 last->inp_socket->so_options & SO_TIMESTAMP) 224 ip_savecontrol(last, &opts, ip, m); 225 if (sbappendaddr(&last->inp_socket->so_rcv, 226 (struct sockaddr *)&ripsrc, m, opts) == 0) { 227 m_freem(m); 228 if (opts) 229 m_freem(opts); 230 } else 231 sorwakeup(last->inp_socket); 232 } else { 233 m_freem(m); 234 ipstat.ips_noproto++; 235 ipstat.ips_delivered--; 236 } 237 } 238 239 /* 240 * Generate IP header and pass packet to ip_output. 241 * Tack on options user may have setup with control call. 242 */ 243 int 244 rip_output(struct mbuf *m, struct socket *so, u_long dst) 245 { 246 struct ip *ip; 247 struct inpcb *inp = sotoinpcb(so); 248 int flags = (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST; 249 250 /* 251 * If the user handed us a complete IP packet, use it. 252 * Otherwise, allocate an mbuf for a header and fill it in. 253 */ 254 if ((inp->inp_flags & INP_HDRINCL) == 0) { 255 if (m->m_pkthdr.len + sizeof(struct ip) > IP_MAXPACKET) { 256 m_freem(m); 257 return(EMSGSIZE); 258 } 259 M_PREPEND(m, sizeof(struct ip), M_WAIT); 260 if (m == NULL) 261 return(ENOBUFS); 262 ip = mtod(m, struct ip *); 263 ip->ip_tos = inp->inp_ip_tos; 264 ip->ip_off = 0; 265 ip->ip_p = inp->inp_ip_p; 266 ip->ip_len = m->m_pkthdr.len; 267 ip->ip_src = inp->inp_laddr; 268 ip->ip_dst.s_addr = dst; 269 ip->ip_ttl = inp->inp_ip_ttl; 270 } else { 271 if (m->m_pkthdr.len > IP_MAXPACKET) { 272 m_freem(m); 273 return(EMSGSIZE); 274 } 275 ip = mtod(m, struct ip *); 276 /* don't allow both user specified and setsockopt options, 277 and don't allow packet length sizes that will crash */ 278 if (((IP_VHL_HL(ip->ip_vhl) != (sizeof (*ip) >> 2)) 279 && inp->inp_options) 280 || (ip->ip_len > m->m_pkthdr.len) 281 || (ip->ip_len < (IP_VHL_HL(ip->ip_vhl) << 2))) { 282 m_freem(m); 283 return EINVAL; 284 } 285 if (ip->ip_id == 0) 286 #ifdef RANDOM_IP_ID 287 ip->ip_id = ip_randomid(); 288 #else 289 ip->ip_id = htons(ip_id++); 290 #endif 291 /* XXX prevent ip_output from overwriting header fields */ 292 flags |= IP_RAWOUTPUT; 293 ipstat.ips_rawout++; 294 } 295 296 return (ip_output(m, inp->inp_options, &inp->inp_route, flags, 297 inp->inp_moptions, inp)); 298 } 299 300 /* 301 * Raw IP socket option processing. 302 */ 303 int 304 rip_ctloutput(struct socket *so, struct sockopt *sopt) 305 { 306 struct inpcb *inp = sotoinpcb(so); 307 int error, optval; 308 309 if (sopt->sopt_level != IPPROTO_IP) 310 return (EINVAL); 311 312 error = 0; 313 314 switch (sopt->sopt_dir) { 315 case SOPT_GET: 316 switch (sopt->sopt_name) { 317 case IP_HDRINCL: 318 optval = inp->inp_flags & INP_HDRINCL; 319 error = sooptcopyout(sopt, &optval, sizeof optval); 320 break; 321 322 case IP_FW_ADD: /* ADD actually returns the body... */ 323 case IP_FW_GET: 324 if (IPFW_LOADED) 325 error = ip_fw_ctl_ptr(sopt); 326 else 327 error = ENOPROTOOPT; 328 break; 329 330 case IP_DUMMYNET_GET: 331 if (DUMMYNET_LOADED) 332 error = ip_dn_ctl_ptr(sopt); 333 else 334 error = ENOPROTOOPT; 335 break ; 336 337 case MRT_INIT: 338 case MRT_DONE: 339 case MRT_ADD_VIF: 340 case MRT_DEL_VIF: 341 case MRT_ADD_MFC: 342 case MRT_DEL_MFC: 343 case MRT_VERSION: 344 case MRT_ASSERT: 345 case MRT_API_SUPPORT: 346 case MRT_API_CONFIG: 347 case MRT_ADD_BW_UPCALL: 348 case MRT_DEL_BW_UPCALL: 349 error = ip_mrouter_get ? ip_mrouter_get(so, sopt) : 350 EOPNOTSUPP; 351 break; 352 353 default: 354 error = ip_ctloutput(so, sopt); 355 break; 356 } 357 break; 358 359 case SOPT_SET: 360 switch (sopt->sopt_name) { 361 case IP_HDRINCL: 362 error = sooptcopyin(sopt, &optval, sizeof optval, 363 sizeof optval); 364 if (error) 365 break; 366 if (optval) 367 inp->inp_flags |= INP_HDRINCL; 368 else 369 inp->inp_flags &= ~INP_HDRINCL; 370 break; 371 372 case IP_FW_ADD: 373 case IP_FW_DEL: 374 case IP_FW_FLUSH: 375 case IP_FW_ZERO: 376 case IP_FW_RESETLOG: 377 if (IPFW_LOADED) 378 error = ip_fw_ctl_ptr(sopt); 379 else 380 error = ENOPROTOOPT; 381 break; 382 383 case IP_DUMMYNET_CONFIGURE: 384 case IP_DUMMYNET_DEL: 385 case IP_DUMMYNET_FLUSH: 386 if (DUMMYNET_LOADED) 387 error = ip_dn_ctl_ptr(sopt); 388 else 389 error = ENOPROTOOPT ; 390 break ; 391 392 case IP_RSVP_ON: 393 error = ip_rsvp_init(so); 394 break; 395 396 case IP_RSVP_OFF: 397 error = ip_rsvp_done(); 398 break; 399 400 case IP_RSVP_VIF_ON: 401 case IP_RSVP_VIF_OFF: 402 error = ip_rsvp_vif ? 403 ip_rsvp_vif(so, sopt) : EINVAL; 404 break; 405 406 case MRT_INIT: 407 case MRT_DONE: 408 case MRT_ADD_VIF: 409 case MRT_DEL_VIF: 410 case MRT_ADD_MFC: 411 case MRT_DEL_MFC: 412 case MRT_VERSION: 413 case MRT_ASSERT: 414 case MRT_API_SUPPORT: 415 case MRT_API_CONFIG: 416 case MRT_ADD_BW_UPCALL: 417 case MRT_DEL_BW_UPCALL: 418 error = ip_mrouter_set ? ip_mrouter_set(so, sopt) : 419 EOPNOTSUPP; 420 break; 421 422 default: 423 error = ip_ctloutput(so, sopt); 424 break; 425 } 426 break; 427 } 428 429 return (error); 430 } 431 432 /* 433 * This function exists solely to receive the PRC_IFDOWN messages which 434 * are sent by if_down(). It looks for an ifaddr whose ifa_addr is sa, 435 * and calls in_ifadown() to remove all routes corresponding to that address. 436 * It also receives the PRC_IFUP messages from if_up() and reinstalls the 437 * interface routes. 438 */ 439 void 440 rip_ctlinput(int cmd, struct sockaddr *sa, void *vip) 441 { 442 struct in_ifaddr *ia; 443 struct ifnet *ifp; 444 int err; 445 int flags; 446 447 switch (cmd) { 448 case PRC_IFDOWN: 449 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) { 450 if (ia->ia_ifa.ifa_addr == sa 451 && (ia->ia_flags & IFA_ROUTE)) { 452 /* 453 * in_ifscrub kills the interface route. 454 */ 455 in_ifscrub(ia->ia_ifp, ia); 456 /* 457 * in_ifadown gets rid of all the rest of 458 * the routes. This is not quite the right 459 * thing to do, but at least if we are running 460 * a routing process they will come back. 461 */ 462 in_ifadown(&ia->ia_ifa, 0); 463 break; 464 } 465 } 466 break; 467 468 case PRC_IFUP: 469 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) { 470 if (ia->ia_ifa.ifa_addr == sa) 471 break; 472 } 473 if (ia == 0 || (ia->ia_flags & IFA_ROUTE)) 474 return; 475 flags = RTF_UP; 476 ifp = ia->ia_ifa.ifa_ifp; 477 478 if ((ifp->if_flags & IFF_LOOPBACK) 479 || (ifp->if_flags & IFF_POINTOPOINT)) 480 flags |= RTF_HOST; 481 482 err = rtinit(&ia->ia_ifa, RTM_ADD, flags); 483 if (err == 0) 484 ia->ia_flags |= IFA_ROUTE; 485 break; 486 } 487 } 488 489 u_long rip_sendspace = RIPSNDQ; 490 u_long rip_recvspace = RIPRCVQ; 491 492 SYSCTL_INT(_net_inet_raw, OID_AUTO, maxdgram, CTLFLAG_RW, 493 &rip_sendspace, 0, "Maximum outgoing raw IP datagram size"); 494 SYSCTL_INT(_net_inet_raw, OID_AUTO, recvspace, CTLFLAG_RW, 495 &rip_recvspace, 0, "Maximum incoming raw IP datagram size"); 496 497 static int 498 rip_attach(struct socket *so, int proto, struct pru_attach_info *ai) 499 { 500 struct inpcb *inp; 501 int error, s; 502 503 inp = sotoinpcb(so); 504 if (inp) 505 panic("rip_attach"); 506 if ((error = suser_cred(ai->p_ucred, NULL_CRED_OKAY)) != 0) 507 return error; 508 509 error = soreserve(so, rip_sendspace, rip_recvspace, ai->sb_rlimit); 510 if (error) 511 return error; 512 s = splnet(); 513 error = in_pcballoc(so, &ripcbinfo); 514 splx(s); 515 if (error) 516 return error; 517 inp = (struct inpcb *)so->so_pcb; 518 inp->inp_vflag |= INP_IPV4; 519 inp->inp_ip_p = proto; 520 inp->inp_ip_ttl = ip_defttl; 521 return 0; 522 } 523 524 static int 525 rip_detach(struct socket *so) 526 { 527 struct inpcb *inp; 528 529 inp = sotoinpcb(so); 530 if (inp == 0) 531 panic("rip_detach"); 532 if (so == ip_mrouter && ip_mrouter_done) 533 ip_mrouter_done(); 534 if (ip_rsvp_force_done) 535 ip_rsvp_force_done(so); 536 if (so == ip_rsvpd) 537 ip_rsvp_done(); 538 in_pcbdetach(inp); 539 return 0; 540 } 541 542 static int 543 rip_abort(struct socket *so) 544 { 545 soisdisconnected(so); 546 if (so->so_state & SS_NOFDREF) 547 return rip_detach(so); 548 return 0; 549 } 550 551 static int 552 rip_disconnect(struct socket *so) 553 { 554 if ((so->so_state & SS_ISCONNECTED) == 0) 555 return ENOTCONN; 556 return rip_abort(so); 557 } 558 559 static int 560 rip_bind(struct socket *so, struct sockaddr *nam, struct thread *td) 561 { 562 struct inpcb *inp = sotoinpcb(so); 563 struct sockaddr_in *addr = (struct sockaddr_in *)nam; 564 565 if (nam->sa_len != sizeof(*addr)) 566 return EINVAL; 567 568 if (TAILQ_EMPTY(&ifnet) || ((addr->sin_family != AF_INET) && 569 (addr->sin_family != AF_IMPLINK)) || 570 (addr->sin_addr.s_addr != INADDR_ANY && 571 ifa_ifwithaddr((struct sockaddr *)addr) == 0)) 572 return EADDRNOTAVAIL; 573 inp->inp_laddr = addr->sin_addr; 574 return 0; 575 } 576 577 static int 578 rip_connect(struct socket *so, struct sockaddr *nam, struct thread *td) 579 { 580 struct inpcb *inp = sotoinpcb(so); 581 struct sockaddr_in *addr = (struct sockaddr_in *)nam; 582 583 if (nam->sa_len != sizeof(*addr)) 584 return EINVAL; 585 if (TAILQ_EMPTY(&ifnet)) 586 return EADDRNOTAVAIL; 587 if ((addr->sin_family != AF_INET) && 588 (addr->sin_family != AF_IMPLINK)) 589 return EAFNOSUPPORT; 590 inp->inp_faddr = addr->sin_addr; 591 soisconnected(so); 592 return 0; 593 } 594 595 static int 596 rip_shutdown(struct socket *so) 597 { 598 socantsendmore(so); 599 return 0; 600 } 601 602 static int 603 rip_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam, 604 struct mbuf *control, struct thread *td) 605 { 606 struct inpcb *inp = sotoinpcb(so); 607 u_long dst; 608 609 if (so->so_state & SS_ISCONNECTED) { 610 if (nam) { 611 m_freem(m); 612 return EISCONN; 613 } 614 dst = inp->inp_faddr.s_addr; 615 } else { 616 if (nam == NULL) { 617 m_freem(m); 618 return ENOTCONN; 619 } 620 dst = ((struct sockaddr_in *)nam)->sin_addr.s_addr; 621 } 622 return rip_output(m, so, dst); 623 } 624 625 static int 626 rip_pcblist(SYSCTL_HANDLER_ARGS) 627 { 628 int error, i, n, s; 629 struct inpcb *inp, **inp_list; 630 inp_gen_t gencnt; 631 struct xinpgen xig; 632 633 /* 634 * The process of preparing the TCB list is too time-consuming and 635 * resource-intensive to repeat twice on every request. 636 */ 637 if (req->oldptr == 0) { 638 n = ripcbinfo.ipi_count; 639 req->oldidx = 2 * (sizeof xig) 640 + (n + n/8) * sizeof(struct xinpcb); 641 return 0; 642 } 643 644 if (req->newptr != 0) 645 return EPERM; 646 647 /* 648 * OK, now we're committed to doing something. 649 */ 650 s = splnet(); 651 gencnt = ripcbinfo.ipi_gencnt; 652 n = ripcbinfo.ipi_count; 653 splx(s); 654 655 xig.xig_len = sizeof xig; 656 xig.xig_count = n; 657 xig.xig_gen = gencnt; 658 xig.xig_sogen = so_gencnt; 659 error = SYSCTL_OUT(req, &xig, sizeof xig); 660 if (error) 661 return error; 662 663 inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK); 664 if (inp_list == 0) 665 return ENOMEM; 666 667 s = splnet(); 668 for (inp = LIST_FIRST(&ripcbinfo.listhead), i = 0; inp && i < n; 669 inp = LIST_NEXT(inp, inp_list)) { 670 if (inp->inp_gencnt <= gencnt) 671 inp_list[i++] = inp; 672 } 673 splx(s); 674 n = i; 675 676 error = 0; 677 for (i = 0; i < n; i++) { 678 inp = inp_list[i]; 679 if (inp->inp_gencnt <= gencnt) { 680 struct xinpcb xi; 681 xi.xi_len = sizeof xi; 682 /* XXX should avoid extra copy */ 683 bcopy(inp, &xi.xi_inp, sizeof *inp); 684 if (inp->inp_socket) 685 sotoxsocket(inp->inp_socket, &xi.xi_socket); 686 error = SYSCTL_OUT(req, &xi, sizeof xi); 687 } 688 } 689 if (!error) { 690 /* 691 * Give the user an updated idea of our state. 692 * If the generation differs from what we told 693 * her before, she knows that something happened 694 * while we were processing this request, and it 695 * might be necessary to retry. 696 */ 697 s = splnet(); 698 xig.xig_gen = ripcbinfo.ipi_gencnt; 699 xig.xig_sogen = so_gencnt; 700 xig.xig_count = ripcbinfo.ipi_count; 701 splx(s); 702 error = SYSCTL_OUT(req, &xig, sizeof xig); 703 } 704 free(inp_list, M_TEMP); 705 return error; 706 } 707 708 SYSCTL_PROC(_net_inet_raw, OID_AUTO/*XXX*/, pcblist, CTLFLAG_RD, 0, 0, 709 rip_pcblist, "S,xinpcb", "List of active raw IP sockets"); 710 711 struct pr_usrreqs rip_usrreqs = { 712 rip_abort, pru_accept_notsupp, rip_attach, rip_bind, rip_connect, 713 pru_connect2_notsupp, in_control, rip_detach, rip_disconnect, 714 pru_listen_notsupp, in_setpeeraddr, pru_rcvd_notsupp, 715 pru_rcvoob_notsupp, rip_send, pru_sense_null, rip_shutdown, 716 in_setsockaddr, sosend, soreceive, sopoll 717 }; 718