Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/netinet/raw_ip.c
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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 * $FreeBSD$ 35 */ 36 37 #include "opt_inet6.h" 38 #include "opt_ipsec.h" 39 #include "opt_random_ip_id.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/malloc.h> 45 #include <sys/mbuf.h> 46 #include <sys/proc.h> 47 #include <sys/protosw.h> 48 #include <sys/socket.h> 49 #include <sys/socketvar.h> 50 #include <sys/sysctl.h> 51 52 #include <vm/vm_zone.h> 53 54 #include <net/if.h> 55 #include <net/route.h> 56 57 #define _IP_VHL 58 #include <netinet/in.h> 59 #include <netinet/in_systm.h> 60 #include <netinet/ip.h> 61 #include <netinet/in_pcb.h> 62 #include <netinet/in_var.h> 63 #include <netinet/ip_var.h> 64 #include <netinet/ip_mroute.h> 65 66 #include <netinet/ip_fw.h> 67 #include <netinet/ip_dummynet.h> 68 69 #ifdef FAST_IPSEC 70 #include <netipsec/ipsec.h> 71 #endif /*FAST_IPSEC*/ 72 73 #ifdef IPSEC 74 #include <netinet6/ipsec.h> 75 #endif /*IPSEC*/ 76 77 struct inpcbhead ripcb; 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(&ripcb); 123 ripcbinfo.listhead = &ripcb; 124 /* 125 * XXX We don't use the hash list for raw IP, but it's easier 126 * to allocate a one entry hash list than it is to check all 127 * over the place for hashbase == NULL. 128 */ 129 ripcbinfo.hashbase = hashinit(1, M_PCB, &ripcbinfo.hashmask); 130 ripcbinfo.porthashbase = hashinit(1, M_PCB, &ripcbinfo.porthashmask); 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, &ripcb, 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 if (inp->inp_flags & INP_ONESBCAST) 297 flags |= IP_SENDONES; 298 299 return (ip_output(m, inp->inp_options, &inp->inp_route, flags, 300 inp->inp_moptions, inp)); 301 } 302 303 /* 304 * Raw IP socket option processing. 305 */ 306 int 307 rip_ctloutput(struct socket *so, struct sockopt *sopt) 308 { 309 struct inpcb *inp = sotoinpcb(so); 310 int error, optval; 311 312 if (sopt->sopt_level != IPPROTO_IP) 313 return (EINVAL); 314 315 error = 0; 316 317 switch (sopt->sopt_dir) { 318 case SOPT_GET: 319 switch (sopt->sopt_name) { 320 case IP_HDRINCL: 321 optval = inp->inp_flags & INP_HDRINCL; 322 error = sooptcopyout(sopt, &optval, sizeof optval); 323 break; 324 325 case IP_FW_ADD: /* ADD actually returns the body... */ 326 case IP_FW_GET: 327 case IP_FW_TABLE_GETSIZE: 328 case IP_FW_TABLE_LIST: 329 if (IPFW_LOADED) 330 error = ip_fw_ctl_ptr(sopt); 331 else 332 error = ENOPROTOOPT; 333 break; 334 335 case IP_DUMMYNET_GET: 336 if (DUMMYNET_LOADED) 337 error = ip_dn_ctl_ptr(sopt); 338 else 339 error = ENOPROTOOPT; 340 break ; 341 342 case MRT_INIT: 343 case MRT_DONE: 344 case MRT_ADD_VIF: 345 case MRT_DEL_VIF: 346 case MRT_ADD_MFC: 347 case MRT_DEL_MFC: 348 case MRT_VERSION: 349 case MRT_ASSERT: 350 case MRT_API_SUPPORT: 351 case MRT_API_CONFIG: 352 case MRT_ADD_BW_UPCALL: 353 case MRT_DEL_BW_UPCALL: 354 error = ip_mrouter_get ? ip_mrouter_get(so, sopt) : 355 EOPNOTSUPP; 356 break; 357 358 default: 359 error = ip_ctloutput(so, sopt); 360 break; 361 } 362 break; 363 364 case SOPT_SET: 365 switch (sopt->sopt_name) { 366 case IP_HDRINCL: 367 error = sooptcopyin(sopt, &optval, sizeof optval, 368 sizeof optval); 369 if (error) 370 break; 371 if (optval) 372 inp->inp_flags |= INP_HDRINCL; 373 else 374 inp->inp_flags &= ~INP_HDRINCL; 375 break; 376 377 case IP_FW_ADD: 378 case IP_FW_DEL: 379 case IP_FW_FLUSH: 380 case IP_FW_ZERO: 381 case IP_FW_RESETLOG: 382 case IP_FW_TABLE_ADD: 383 case IP_FW_TABLE_DEL: 384 case IP_FW_TABLE_FLUSH: 385 if (IPFW_LOADED) 386 error = ip_fw_ctl_ptr(sopt); 387 else 388 error = ENOPROTOOPT; 389 break; 390 391 case IP_DUMMYNET_CONFIGURE: 392 case IP_DUMMYNET_DEL: 393 case IP_DUMMYNET_FLUSH: 394 if (DUMMYNET_LOADED) 395 error = ip_dn_ctl_ptr(sopt); 396 else 397 error = ENOPROTOOPT ; 398 break ; 399 400 case IP_RSVP_ON: 401 error = ip_rsvp_init(so); 402 break; 403 404 case IP_RSVP_OFF: 405 error = ip_rsvp_done(); 406 break; 407 408 case IP_RSVP_VIF_ON: 409 case IP_RSVP_VIF_OFF: 410 error = ip_rsvp_vif ? 411 ip_rsvp_vif(so, sopt) : EINVAL; 412 break; 413 414 case MRT_INIT: 415 case MRT_DONE: 416 case MRT_ADD_VIF: 417 case MRT_DEL_VIF: 418 case MRT_ADD_MFC: 419 case MRT_DEL_MFC: 420 case MRT_VERSION: 421 case MRT_ASSERT: 422 case MRT_API_SUPPORT: 423 case MRT_API_CONFIG: 424 case MRT_ADD_BW_UPCALL: 425 case MRT_DEL_BW_UPCALL: 426 error = ip_mrouter_set ? ip_mrouter_set(so, sopt) : 427 EOPNOTSUPP; 428 break; 429 430 default: 431 error = ip_ctloutput(so, sopt); 432 break; 433 } 434 break; 435 } 436 437 return (error); 438 } 439 440 /* 441 * This function exists solely to receive the PRC_IFDOWN messages which 442 * are sent by if_down(). It looks for an ifaddr whose ifa_addr is sa, 443 * and calls in_ifadown() to remove all routes corresponding to that address. 444 * It also receives the PRC_IFUP messages from if_up() and reinstalls the 445 * interface routes. 446 */ 447 void 448 rip_ctlinput(int cmd, struct sockaddr *sa, void *vip) 449 { 450 struct in_ifaddr *ia; 451 struct ifnet *ifp; 452 int err; 453 int flags; 454 455 switch (cmd) { 456 case PRC_IFDOWN: 457 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) { 458 if (ia->ia_ifa.ifa_addr == sa 459 && (ia->ia_flags & IFA_ROUTE)) { 460 /* 461 * in_ifscrub kills the interface route. 462 */ 463 in_ifscrub(ia->ia_ifp, ia); 464 /* 465 * in_ifadown gets rid of all the rest of 466 * the routes. This is not quite the right 467 * thing to do, but at least if we are running 468 * a routing process they will come back. 469 */ 470 in_ifadown(&ia->ia_ifa, 0); 471 break; 472 } 473 } 474 break; 475 476 case PRC_IFUP: 477 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) { 478 if (ia->ia_ifa.ifa_addr == sa) 479 break; 480 } 481 if (ia == 0 || (ia->ia_flags & IFA_ROUTE)) 482 return; 483 flags = RTF_UP; 484 ifp = ia->ia_ifa.ifa_ifp; 485 486 if ((ifp->if_flags & IFF_LOOPBACK) 487 || (ifp->if_flags & IFF_POINTOPOINT)) 488 flags |= RTF_HOST; 489 490 err = rtinit(&ia->ia_ifa, RTM_ADD, flags); 491 if (err == 0) 492 ia->ia_flags |= IFA_ROUTE; 493 break; 494 } 495 } 496 497 u_long rip_sendspace = RIPSNDQ; 498 u_long rip_recvspace = RIPRCVQ; 499 500 SYSCTL_INT(_net_inet_raw, OID_AUTO, maxdgram, CTLFLAG_RW, 501 &rip_sendspace, 0, "Maximum outgoing raw IP datagram size"); 502 SYSCTL_INT(_net_inet_raw, OID_AUTO, recvspace, CTLFLAG_RW, 503 &rip_recvspace, 0, "Maximum incoming raw IP datagram size"); 504 505 static int 506 rip_attach(struct socket *so, int proto, struct proc *p) 507 { 508 struct inpcb *inp; 509 int error, s; 510 511 inp = sotoinpcb(so); 512 if (inp) 513 panic("rip_attach"); 514 if (p && (error = suser(p)) != 0) 515 return error; 516 517 error = soreserve(so, rip_sendspace, rip_recvspace); 518 if (error) 519 return error; 520 s = splnet(); 521 error = in_pcballoc(so, &ripcbinfo, p); 522 splx(s); 523 if (error) 524 return error; 525 inp = (struct inpcb *)so->so_pcb; 526 inp->inp_vflag |= INP_IPV4; 527 inp->inp_ip_p = proto; 528 inp->inp_ip_ttl = ip_defttl; 529 return 0; 530 } 531 532 static int 533 rip_detach(struct socket *so) 534 { 535 struct inpcb *inp; 536 537 inp = sotoinpcb(so); 538 if (inp == 0) 539 panic("rip_detach"); 540 if (so == ip_mrouter && ip_mrouter_done) 541 ip_mrouter_done(); 542 if (ip_rsvp_force_done) 543 ip_rsvp_force_done(so); 544 if (so == ip_rsvpd) 545 ip_rsvp_done(); 546 in_pcbdetach(inp); 547 return 0; 548 } 549 550 static int 551 rip_abort(struct socket *so) 552 { 553 soisdisconnected(so); 554 if (so->so_state & SS_NOFDREF) 555 return rip_detach(so); 556 return 0; 557 } 558 559 static int 560 rip_disconnect(struct socket *so) 561 { 562 if ((so->so_state & SS_ISCONNECTED) == 0) 563 return ENOTCONN; 564 return rip_abort(so); 565 } 566 567 static int 568 rip_bind(struct socket *so, struct sockaddr *nam, struct proc *p) 569 { 570 struct inpcb *inp = sotoinpcb(so); 571 struct sockaddr_in *addr = (struct sockaddr_in *)nam; 572 573 if (nam->sa_len != sizeof(*addr)) 574 return EINVAL; 575 576 if (TAILQ_EMPTY(&ifnet) || ((addr->sin_family != AF_INET) && 577 (addr->sin_family != AF_IMPLINK)) || 578 (addr->sin_addr.s_addr != INADDR_ANY && 579 ifa_ifwithaddr((struct sockaddr *)addr) == 0)) 580 return EADDRNOTAVAIL; 581 inp->inp_laddr = addr->sin_addr; 582 return 0; 583 } 584 585 static int 586 rip_connect(struct socket *so, struct sockaddr *nam, struct proc *p) 587 { 588 struct inpcb *inp = sotoinpcb(so); 589 struct sockaddr_in *addr = (struct sockaddr_in *)nam; 590 591 if (nam->sa_len != sizeof(*addr)) 592 return EINVAL; 593 if (TAILQ_EMPTY(&ifnet)) 594 return EADDRNOTAVAIL; 595 if ((addr->sin_family != AF_INET) && 596 (addr->sin_family != AF_IMPLINK)) 597 return EAFNOSUPPORT; 598 inp->inp_faddr = addr->sin_addr; 599 soisconnected(so); 600 return 0; 601 } 602 603 static int 604 rip_shutdown(struct socket *so) 605 { 606 socantsendmore(so); 607 return 0; 608 } 609 610 static int 611 rip_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam, 612 struct mbuf *control, struct proc *p) 613 { 614 struct inpcb *inp = sotoinpcb(so); 615 u_long dst; 616 617 if (so->so_state & SS_ISCONNECTED) { 618 if (nam) { 619 m_freem(m); 620 return EISCONN; 621 } 622 dst = inp->inp_faddr.s_addr; 623 } else { 624 if (nam == NULL) { 625 m_freem(m); 626 return ENOTCONN; 627 } 628 dst = ((struct sockaddr_in *)nam)->sin_addr.s_addr; 629 } 630 return rip_output(m, so, dst); 631 } 632 633 static int 634 rip_pcblist(SYSCTL_HANDLER_ARGS) 635 { 636 int error, i, n, s; 637 struct inpcb *inp, **inp_list; 638 inp_gen_t gencnt; 639 struct xinpgen xig; 640 641 /* 642 * The process of preparing the TCB list is too time-consuming and 643 * resource-intensive to repeat twice on every request. 644 */ 645 if (req->oldptr == 0) { 646 n = ripcbinfo.ipi_count; 647 req->oldidx = 2 * (sizeof xig) 648 + (n + n/8) * sizeof(struct xinpcb); 649 return 0; 650 } 651 652 if (req->newptr != 0) 653 return EPERM; 654 655 /* 656 * OK, now we're committed to doing something. 657 */ 658 s = splnet(); 659 gencnt = ripcbinfo.ipi_gencnt; 660 n = ripcbinfo.ipi_count; 661 splx(s); 662 663 xig.xig_len = sizeof xig; 664 xig.xig_count = n; 665 xig.xig_gen = gencnt; 666 xig.xig_sogen = so_gencnt; 667 error = SYSCTL_OUT(req, &xig, sizeof xig); 668 if (error) 669 return error; 670 671 inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK); 672 if (inp_list == 0) 673 return ENOMEM; 674 675 s = splnet(); 676 for (inp = LIST_FIRST(ripcbinfo.listhead), i = 0; inp && i < n; 677 inp = LIST_NEXT(inp, inp_list)) { 678 if (inp->inp_gencnt <= gencnt) 679 inp_list[i++] = inp; 680 } 681 splx(s); 682 n = i; 683 684 error = 0; 685 for (i = 0; i < n; i++) { 686 inp = inp_list[i]; 687 if (inp->inp_gencnt <= gencnt) { 688 struct xinpcb xi; 689 bzero(&xi, sizeof(xi)); 690 xi.xi_len = sizeof xi; 691 /* XXX should avoid extra copy */ 692 bcopy(inp, &xi.xi_inp, sizeof *inp); 693 if (inp->inp_socket) 694 sotoxsocket(inp->inp_socket, &xi.xi_socket); 695 error = SYSCTL_OUT(req, &xi, sizeof xi); 696 } 697 } 698 if (!error) { 699 /* 700 * Give the user an updated idea of our state. 701 * If the generation differs from what we told 702 * her before, she knows that something happened 703 * while we were processing this request, and it 704 * might be necessary to retry. 705 */ 706 s = splnet(); 707 xig.xig_gen = ripcbinfo.ipi_gencnt; 708 xig.xig_sogen = so_gencnt; 709 xig.xig_count = ripcbinfo.ipi_count; 710 splx(s); 711 error = SYSCTL_OUT(req, &xig, sizeof xig); 712 } 713 free(inp_list, M_TEMP); 714 return error; 715 } 716 717 SYSCTL_PROC(_net_inet_raw, OID_AUTO/*XXX*/, pcblist, CTLFLAG_RD, 0, 0, 718 rip_pcblist, "S,xinpcb", "List of active raw IP sockets"); 719 720 struct pr_usrreqs rip_usrreqs = { 721 rip_abort, pru_accept_notsupp, rip_attach, rip_bind, rip_connect, 722 pru_connect2_notsupp, in_control, rip_detach, rip_disconnect, 723 pru_listen_notsupp, in_setpeeraddr, pru_rcvd_notsupp, 724 pru_rcvoob_notsupp, rip_send, pru_sense_null, rip_shutdown, 725 in_setsockaddr, sosend, soreceive, sopoll 726 };
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