raw_ip.c revision 105199
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: head/sys/netinet/raw_ip.c 105199 2002-10-16 02:25:05Z sam $ 35 */ 36 37#include "opt_inet6.h" 38#include "opt_ipsec.h" 39#include "opt_mac.h" 40#include "opt_random_ip_id.h" 41 42#include <sys/param.h> 43#include <sys/kernel.h> 44#include <sys/lock.h> 45#include <sys/mac.h> 46#include <sys/malloc.h> 47#include <sys/mbuf.h> 48#include <sys/proc.h> 49#include <sys/protosw.h> 50#include <sys/signalvar.h> 51#include <sys/socket.h> 52#include <sys/socketvar.h> 53#include <sys/sx.h> 54#include <sys/sysctl.h> 55#include <sys/systm.h> 56 57#include <vm/uma.h> 58 59#include <net/if.h> 60#include <net/route.h> 61 62#define _IP_VHL 63#include <netinet/in.h> 64#include <netinet/in_systm.h> 65#include <netinet/in_pcb.h> 66#include <netinet/in_var.h> 67#include <netinet/ip.h> 68#include <netinet/ip_var.h> 69#include <netinet/ip_mroute.h> 70 71#include <netinet/ip_fw.h> 72#include <netinet/ip_dummynet.h> 73 74#ifdef FAST_IPSEC 75#include <netipsec/ipsec.h> 76#endif /*FAST_IPSEC*/ 77 78#ifdef IPSEC 79#include <netinet6/ipsec.h> 80#endif /*IPSEC*/ 81 82struct inpcbhead ripcb; 83struct inpcbinfo ripcbinfo; 84 85/* control hooks for ipfw and dummynet */ 86ip_fw_ctl_t *ip_fw_ctl_ptr; 87ip_dn_ctl_t *ip_dn_ctl_ptr; 88 89/* 90 * Nominal space allocated to a raw ip socket. 91 */ 92#define RIPSNDQ 8192 93#define RIPRCVQ 8192 94 95/* 96 * Raw interface to IP protocol. 97 */ 98 99/* 100 * Initialize raw connection block q. 101 */ 102void 103rip_init() 104{ 105 INP_INFO_LOCK_INIT(&ripcbinfo, "rip"); 106 LIST_INIT(&ripcb); 107 ripcbinfo.listhead = &ripcb; 108 /* 109 * XXX We don't use the hash list for raw IP, but it's easier 110 * to allocate a one entry hash list than it is to check all 111 * over the place for hashbase == NULL. 112 */ 113 ripcbinfo.hashbase = hashinit(1, M_PCB, &ripcbinfo.hashmask); 114 ripcbinfo.porthashbase = hashinit(1, M_PCB, &ripcbinfo.porthashmask); 115 ripcbinfo.ipi_zone = uma_zcreate("ripcb", sizeof(struct inpcb), 116 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 117 uma_zone_set_max(ripcbinfo.ipi_zone, maxsockets); 118} 119 120static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET }; 121/* 122 * Setup generic address and protocol structures 123 * for raw_input routine, then pass them along with 124 * mbuf chain. 125 */ 126void 127rip_input(m, off) 128 struct mbuf *m; 129 int off; 130{ 131 register struct ip *ip = mtod(m, struct ip *); 132 register struct inpcb *inp; 133 struct inpcb *last = 0; 134 struct mbuf *opts = 0; 135 int proto = ip->ip_p; 136 137 ripsrc.sin_addr = ip->ip_src; 138 LIST_FOREACH(inp, &ripcb, inp_list) { 139#ifdef INET6 140 if ((inp->inp_vflag & INP_IPV4) == 0) 141 continue; 142#endif 143 if (inp->inp_ip_p && inp->inp_ip_p != proto) 144 continue; 145 if (inp->inp_laddr.s_addr && 146 inp->inp_laddr.s_addr != ip->ip_dst.s_addr) 147 continue; 148 if (inp->inp_faddr.s_addr && 149 inp->inp_faddr.s_addr != ip->ip_src.s_addr) 150 continue; 151 if (last) { 152 struct mbuf *n = m_copy(m, 0, (int)M_COPYALL); 153 int policyfail = 0; 154 155 if (n != NULL) { 156#ifdef IPSSEC 157 /* check AH/ESP integrity. */ 158 if (ipsec4_in_reject_so(n, last->inp_socket)) { 159 policyfail = 1; 160 ipsecstat.in_polvio++; 161 /* do not inject data to pcb */ 162 } 163#endif /*IPSEC*/ 164#ifdef FAST_IPSEC 165 /* check AH/ESP integrity. */ 166 if (ipsec4_in_reject(n, last)) { 167 policyfail = 1; 168 /* do not inject data to pcb */ 169 } 170#endif /*FAST_IPSEC*/ 171#ifdef MAC 172 if (policyfail == 0 && 173 mac_check_socket_deliver(last->inp_socket, 174 n) != 0) 175 policyfail = 1; 176#endif 177 } 178 if (policyfail) 179 m_freem(n); 180 else if (n) { 181 if (last->inp_flags & INP_CONTROLOPTS || 182 last->inp_socket->so_options & SO_TIMESTAMP) 183 ip_savecontrol(last, &opts, ip, n); 184 if (sbappendaddr(&last->inp_socket->so_rcv, 185 (struct sockaddr *)&ripsrc, n, 186 opts) == 0) { 187 /* should notify about lost packet */ 188 m_freem(n); 189 if (opts) 190 m_freem(opts); 191 } else 192 sorwakeup(last->inp_socket); 193 opts = 0; 194 } 195 } 196 last = inp; 197 } 198 if (last) { 199#ifdef IPSEC 200 /* check AH/ESP integrity. */ 201 if (ipsec4_in_reject_so(m, last->inp_socket)) { 202 m_freem(m); 203 ipsecstat.in_polvio++; 204 ipstat.ips_delivered--; 205 /* do not inject data to pcb */ 206 return; 207 } 208#endif /*IPSEC*/ 209#ifdef FAST_IPSEC 210 /* check AH/ESP integrity. */ 211 if (ipsec4_in_reject(m, last)) { 212 m_freem(m); 213 ipstat.ips_delivered--; 214 /* do not inject data to pcb */ 215 return; 216 } 217#endif /*FAST_IPSEC*/ 218#ifdef MAC 219 if (mac_check_socket_deliver(last->inp_socket, m) != 0) { 220 m_freem(m); 221 ipstat.ips_delivered--; 222 return; 223 } 224#endif 225 if (last->inp_flags & INP_CONTROLOPTS || 226 last->inp_socket->so_options & SO_TIMESTAMP) 227 ip_savecontrol(last, &opts, ip, m); 228 if (sbappendaddr(&last->inp_socket->so_rcv, 229 (struct sockaddr *)&ripsrc, m, opts) == 0) { 230 m_freem(m); 231 if (opts) 232 m_freem(opts); 233 } else 234 sorwakeup(last->inp_socket); 235 } else { 236 m_freem(m); 237 ipstat.ips_noproto++; 238 ipstat.ips_delivered--; 239 } 240} 241 242/* 243 * Generate IP header and pass packet to ip_output. 244 * Tack on options user may have setup with control call. 245 */ 246int 247rip_output(m, so, dst) 248 struct mbuf *m; 249 struct socket *so; 250 u_long dst; 251{ 252 register struct ip *ip; 253 register struct inpcb *inp = sotoinpcb(so); 254 int flags = (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST; 255 256#ifdef MAC 257 mac_create_mbuf_from_socket(so, m); 258#endif 259 260 /* 261 * If the user handed us a complete IP packet, use it. 262 * Otherwise, allocate an mbuf for a header and fill it in. 263 */ 264 if ((inp->inp_flags & INP_HDRINCL) == 0) { 265 if (m->m_pkthdr.len + sizeof(struct ip) > IP_MAXPACKET) { 266 m_freem(m); 267 return(EMSGSIZE); 268 } 269 M_PREPEND(m, sizeof(struct ip), M_TRYWAIT); 270 ip = mtod(m, struct ip *); 271 ip->ip_tos = inp->inp_ip_tos; 272 ip->ip_off = 0; 273 ip->ip_p = inp->inp_ip_p; 274 ip->ip_len = m->m_pkthdr.len; 275 ip->ip_src = inp->inp_laddr; 276 ip->ip_dst.s_addr = dst; 277 ip->ip_ttl = inp->inp_ip_ttl; 278 } else { 279 if (m->m_pkthdr.len > IP_MAXPACKET) { 280 m_freem(m); 281 return(EMSGSIZE); 282 } 283 ip = mtod(m, struct ip *); 284 /* don't allow both user specified and setsockopt options, 285 and don't allow packet length sizes that will crash */ 286 if (((IP_VHL_HL(ip->ip_vhl) != (sizeof (*ip) >> 2)) 287 && inp->inp_options) 288 || (ip->ip_len > m->m_pkthdr.len) 289 || (ip->ip_len < (IP_VHL_HL(ip->ip_vhl) << 2))) { 290 m_freem(m); 291 return EINVAL; 292 } 293 if (ip->ip_id == 0) 294#ifdef RANDOM_IP_ID 295 ip->ip_id = ip_randomid(); 296#else 297 ip->ip_id = htons(ip_id++); 298#endif 299 /* XXX prevent ip_output from overwriting header fields */ 300 flags |= IP_RAWOUTPUT; 301 ipstat.ips_rawout++; 302 } 303 304 return (ip_output(m, inp->inp_options, &inp->inp_route, flags, 305 inp->inp_moptions, inp)); 306} 307 308/* 309 * Raw IP socket option processing. 310 */ 311int 312rip_ctloutput(so, sopt) 313 struct socket *so; 314 struct sockopt *sopt; 315{ 316 struct inpcb *inp = sotoinpcb(so); 317 int error, optval; 318 319 if (sopt->sopt_level != IPPROTO_IP) 320 return (EINVAL); 321 322 error = 0; 323 324 switch (sopt->sopt_dir) { 325 case SOPT_GET: 326 switch (sopt->sopt_name) { 327 case IP_HDRINCL: 328 optval = inp->inp_flags & INP_HDRINCL; 329 error = sooptcopyout(sopt, &optval, sizeof optval); 330 break; 331 332 case IP_FW_ADD: /* ADD actually returns the body... */ 333 case IP_FW_GET: 334 if (IPFW_LOADED) 335 error = ip_fw_ctl_ptr(sopt); 336 else 337 error = ENOPROTOOPT; 338 break; 339 340 case IP_DUMMYNET_GET: 341 if (DUMMYNET_LOADED) 342 error = ip_dn_ctl_ptr(sopt); 343 else 344 error = ENOPROTOOPT; 345 break ; 346 347 case MRT_INIT: 348 case MRT_DONE: 349 case MRT_ADD_VIF: 350 case MRT_DEL_VIF: 351 case MRT_ADD_MFC: 352 case MRT_DEL_MFC: 353 case MRT_VERSION: 354 case MRT_ASSERT: 355 error = ip_mrouter_get(so, sopt); 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 if (IPFW_LOADED) 383 error = ip_fw_ctl_ptr(sopt); 384 else 385 error = ENOPROTOOPT; 386 break; 387 388 case IP_DUMMYNET_CONFIGURE: 389 case IP_DUMMYNET_DEL: 390 case IP_DUMMYNET_FLUSH: 391 if (DUMMYNET_LOADED) 392 error = ip_dn_ctl_ptr(sopt); 393 else 394 error = ENOPROTOOPT ; 395 break ; 396 397 case IP_RSVP_ON: 398 error = ip_rsvp_init(so); 399 break; 400 401 case IP_RSVP_OFF: 402 error = ip_rsvp_done(); 403 break; 404 405 /* XXX - should be combined */ 406 case IP_RSVP_VIF_ON: 407 error = ip_rsvp_vif_init(so, sopt); 408 break; 409 410 case IP_RSVP_VIF_OFF: 411 error = ip_rsvp_vif_done(so, sopt); 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 error = ip_mrouter_set(so, sopt); 423 break; 424 425 default: 426 error = ip_ctloutput(so, sopt); 427 break; 428 } 429 break; 430 } 431 432 return (error); 433} 434 435/* 436 * This function exists solely to receive the PRC_IFDOWN messages which 437 * are sent by if_down(). It looks for an ifaddr whose ifa_addr is sa, 438 * and calls in_ifadown() to remove all routes corresponding to that address. 439 * It also receives the PRC_IFUP messages from if_up() and reinstalls the 440 * interface routes. 441 */ 442void 443rip_ctlinput(cmd, sa, vip) 444 int cmd; 445 struct sockaddr *sa; 446 void *vip; 447{ 448 struct in_ifaddr *ia; 449 struct ifnet *ifp; 450 int err; 451 int flags; 452 453 switch (cmd) { 454 case PRC_IFDOWN: 455 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) { 456 if (ia->ia_ifa.ifa_addr == sa 457 && (ia->ia_flags & IFA_ROUTE)) { 458 /* 459 * in_ifscrub kills the interface route. 460 */ 461 in_ifscrub(ia->ia_ifp, ia); 462 /* 463 * in_ifadown gets rid of all the rest of 464 * the routes. This is not quite the right 465 * thing to do, but at least if we are running 466 * a routing process they will come back. 467 */ 468 in_ifadown(&ia->ia_ifa, 0); 469 break; 470 } 471 } 472 break; 473 474 case PRC_IFUP: 475 TAILQ_FOREACH(ia, &in_ifaddrhead, ia_link) { 476 if (ia->ia_ifa.ifa_addr == sa) 477 break; 478 } 479 if (ia == 0 || (ia->ia_flags & IFA_ROUTE)) 480 return; 481 flags = RTF_UP; 482 ifp = ia->ia_ifa.ifa_ifp; 483 484 if ((ifp->if_flags & IFF_LOOPBACK) 485 || (ifp->if_flags & IFF_POINTOPOINT)) 486 flags |= RTF_HOST; 487 488 err = rtinit(&ia->ia_ifa, RTM_ADD, flags); 489 if (err == 0) 490 ia->ia_flags |= IFA_ROUTE; 491 break; 492 } 493} 494 495u_long rip_sendspace = RIPSNDQ; 496u_long rip_recvspace = RIPRCVQ; 497 498SYSCTL_INT(_net_inet_raw, OID_AUTO, maxdgram, CTLFLAG_RW, 499 &rip_sendspace, 0, "Maximum outgoing raw IP datagram size"); 500SYSCTL_INT(_net_inet_raw, OID_AUTO, recvspace, CTLFLAG_RW, 501 &rip_recvspace, 0, "Maximum incoming raw IP datagram size"); 502 503static int 504rip_attach(struct socket *so, int proto, struct thread *td) 505{ 506 struct inpcb *inp; 507 int error, s; 508 509 inp = sotoinpcb(so); 510 if (inp) 511 panic("rip_attach"); 512 if (td && (error = suser(td)) != 0) 513 return error; 514 515 error = soreserve(so, rip_sendspace, rip_recvspace); 516 if (error) 517 return error; 518 s = splnet(); 519 error = in_pcballoc(so, &ripcbinfo, td); 520 splx(s); 521 if (error) 522 return error; 523 inp = (struct inpcb *)so->so_pcb; 524 inp->inp_vflag |= INP_IPV4; 525 inp->inp_ip_p = proto; 526 inp->inp_ip_ttl = ip_defttl; 527 return 0; 528} 529 530static int 531rip_detach(struct socket *so) 532{ 533 struct inpcb *inp; 534 535 inp = sotoinpcb(so); 536 if (inp == 0) 537 panic("rip_detach"); 538 if (so == ip_mrouter) 539 ip_mrouter_done(); 540 ip_rsvp_force_done(so); 541 if (so == ip_rsvpd) 542 ip_rsvp_done(); 543 in_pcbdetach(inp); 544 return 0; 545} 546 547static int 548rip_abort(struct socket *so) 549{ 550 soisdisconnected(so); 551 return rip_detach(so); 552} 553 554static int 555rip_disconnect(struct socket *so) 556{ 557 if ((so->so_state & SS_ISCONNECTED) == 0) 558 return ENOTCONN; 559 return rip_abort(so); 560} 561 562static int 563rip_bind(struct socket *so, struct sockaddr *nam, struct thread *td) 564{ 565 struct inpcb *inp = sotoinpcb(so); 566 struct sockaddr_in *addr = (struct sockaddr_in *)nam; 567 568 if (nam->sa_len != sizeof(*addr)) 569 return EINVAL; 570 571 if (TAILQ_EMPTY(&ifnet) || ((addr->sin_family != AF_INET) && 572 (addr->sin_family != AF_IMPLINK)) || 573 (addr->sin_addr.s_addr && 574 ifa_ifwithaddr((struct sockaddr *)addr) == 0)) 575 return EADDRNOTAVAIL; 576 inp->inp_laddr = addr->sin_addr; 577 return 0; 578} 579 580static int 581rip_connect(struct socket *so, struct sockaddr *nam, struct thread *td) 582{ 583 struct inpcb *inp = sotoinpcb(so); 584 struct sockaddr_in *addr = (struct sockaddr_in *)nam; 585 586 if (nam->sa_len != sizeof(*addr)) 587 return EINVAL; 588 if (TAILQ_EMPTY(&ifnet)) 589 return EADDRNOTAVAIL; 590 if ((addr->sin_family != AF_INET) && 591 (addr->sin_family != AF_IMPLINK)) 592 return EAFNOSUPPORT; 593 inp->inp_faddr = addr->sin_addr; 594 soisconnected(so); 595 return 0; 596} 597 598static int 599rip_shutdown(struct socket *so) 600{ 601 socantsendmore(so); 602 return 0; 603} 604 605static int 606rip_send(struct socket *so, int flags, struct mbuf *m, struct sockaddr *nam, 607 struct mbuf *control, struct thread *td) 608{ 609 struct inpcb *inp = sotoinpcb(so); 610 register u_long dst; 611 612 if (so->so_state & SS_ISCONNECTED) { 613 if (nam) { 614 m_freem(m); 615 return EISCONN; 616 } 617 dst = inp->inp_faddr.s_addr; 618 } else { 619 if (nam == NULL) { 620 m_freem(m); 621 return ENOTCONN; 622 } 623 dst = ((struct sockaddr_in *)nam)->sin_addr.s_addr; 624 } 625 return rip_output(m, so, dst); 626} 627 628static int 629rip_pcblist(SYSCTL_HANDLER_ARGS) 630{ 631 int error, i, n, s; 632 struct inpcb *inp, **inp_list; 633 inp_gen_t gencnt; 634 struct xinpgen xig; 635 636 /* 637 * The process of preparing the TCB list is too time-consuming and 638 * resource-intensive to repeat twice on every request. 639 */ 640 if (req->oldptr == 0) { 641 n = ripcbinfo.ipi_count; 642 req->oldidx = 2 * (sizeof xig) 643 + (n + n/8) * sizeof(struct xinpcb); 644 return 0; 645 } 646 647 if (req->newptr != 0) 648 return EPERM; 649 650 /* 651 * OK, now we're committed to doing something. 652 */ 653 s = splnet(); 654 gencnt = ripcbinfo.ipi_gencnt; 655 n = ripcbinfo.ipi_count; 656 splx(s); 657 658 xig.xig_len = sizeof xig; 659 xig.xig_count = n; 660 xig.xig_gen = gencnt; 661 xig.xig_sogen = so_gencnt; 662 error = SYSCTL_OUT(req, &xig, sizeof xig); 663 if (error) 664 return error; 665 666 inp_list = malloc(n * sizeof *inp_list, M_TEMP, M_WAITOK); 667 if (inp_list == 0) 668 return ENOMEM; 669 670 s = splnet(); 671 for (inp = LIST_FIRST(ripcbinfo.listhead), i = 0; inp && i < n; 672 inp = LIST_NEXT(inp, inp_list)) { 673 if (inp->inp_gencnt <= gencnt) { 674 if (cr_canseesocket(req->td->td_ucred, 675 inp->inp_socket)) 676 continue; 677 inp_list[i++] = inp; 678 } 679 } 680 splx(s); 681 n = i; 682 683 error = 0; 684 for (i = 0; i < n; i++) { 685 inp = inp_list[i]; 686 if (inp->inp_gencnt <= gencnt) { 687 struct xinpcb xi; 688 xi.xi_len = sizeof xi; 689 /* XXX should avoid extra copy */ 690 bcopy(inp, &xi.xi_inp, sizeof *inp); 691 if (inp->inp_socket) 692 sotoxsocket(inp->inp_socket, &xi.xi_socket); 693 error = SYSCTL_OUT(req, &xi, sizeof xi); 694 } 695 } 696 if (!error) { 697 /* 698 * Give the user an updated idea of our state. 699 * If the generation differs from what we told 700 * her before, she knows that something happened 701 * while we were processing this request, and it 702 * might be necessary to retry. 703 */ 704 s = splnet(); 705 xig.xig_gen = ripcbinfo.ipi_gencnt; 706 xig.xig_sogen = so_gencnt; 707 xig.xig_count = ripcbinfo.ipi_count; 708 splx(s); 709 error = SYSCTL_OUT(req, &xig, sizeof xig); 710 } 711 free(inp_list, M_TEMP); 712 return error; 713} 714 715/* 716 * This is the wrapper function for in_setsockaddr. We just pass down 717 * the pcbinfo for in_setpeeraddr to lock. 718 */ 719static int 720rip_sockaddr(struct socket *so, struct sockaddr **nam) 721{ 722 return (in_setsockaddr(so, nam, &ripcbinfo)); 723} 724 725/* 726 * This is the wrapper function for in_setpeeraddr. We just pass down 727 * the pcbinfo for in_setpeeraddr to lock. 728 */ 729static int 730rip_peeraddr(struct socket *so, struct sockaddr **nam) 731{ 732 return (in_setpeeraddr(so, nam, &ripcbinfo)); 733} 734 735 736SYSCTL_PROC(_net_inet_raw, OID_AUTO/*XXX*/, pcblist, CTLFLAG_RD, 0, 0, 737 rip_pcblist, "S,xinpcb", "List of active raw IP sockets"); 738 739struct pr_usrreqs rip_usrreqs = { 740 rip_abort, pru_accept_notsupp, rip_attach, rip_bind, rip_connect, 741 pru_connect2_notsupp, in_control, rip_detach, rip_disconnect, 742 pru_listen_notsupp, rip_peeraddr, pru_rcvd_notsupp, 743 pru_rcvoob_notsupp, rip_send, pru_sense_null, rip_shutdown, 744 rip_sockaddr, sosend, soreceive, sopoll 745}; 746