sys/netinet/raw_ip.c

   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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)raw_ip.c    8.7 (Berkeley) 5/15/95
  30  * $FreeBSD: src/sys/netinet/raw_ip.c,v 1.64.2.16 2003/08/24 08:24:38 hsu Exp $
  31  */
  32
  33 #include "opt_inet6.h"
  34 #include "opt_carp.h"
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38 #include <sys/kernel.h>
  39 #include <sys/jail.h>
  40 #include <sys/malloc.h>
  41 #include <sys/mbuf.h>
  42 #include <sys/proc.h>
  43 #include <sys/caps.h>
  44 #include <sys/protosw.h>
  45 #include <sys/socket.h>
  46 #include <sys/socketvar.h>
  47 #include <sys/sysctl.h>
  48
  49 #include <sys/socketvar2.h>
  50 #include <sys/msgport2.h>
  51
  52 #include <machine/stdarg.h>
  53
  54 #include <net/if.h>
  55 #ifdef CARP
  56 #include <net/if_types.h>
  57 #endif
  58 #include <net/route.h>
  59
  60 #define _IP_VHL
  61 #include <netinet/in.h>
  62 #include <netinet/in_systm.h>
  63 #include <netinet/ip.h>
  64 #include <netinet/in_pcb.h>
  65 #include <netinet/in_var.h>
  66 #include <netinet/ip_var.h>
  67
  68 #include <net/ip_mroute/ip_mroute.h>
  69 #include <net/ipfw/ip_fw.h>
  70 #include <net/ipfw3/ip_fw.h>
  71 #include <net/dummynet/ip_dummynet.h>
  72 #include <net/dummynet3/ip_dummynet3.h>
  73
  74 struct  inpcbinfo ripcbinfo;
  75 struct  inpcbportinfo ripcbportinfo;
  76
  77 /*
  78  * hooks for multicast routing. They all default to NULL,
  79  * so leave them not initialized and rely on BSS being set to 0.
  80  */
  81
  82 /* The socket used to communicate with the multicast routing daemon.  */
  83 struct socket  *ip_mrouter;
  84
  85 /* The various mrouter and rsvp functions */
  86 int (*ip_mrouter_set)(struct socket *, struct sockopt *);
  87 int (*ip_mrouter_get)(struct socket *, struct sockopt *);
  88 int (*ip_mrouter_done)(void);
  89 int (*ip_mforward)(struct ip *, struct ifnet *, struct mbuf *,
  90                 struct ip_moptions *);
  91 int (*mrt_ioctl)(u_long, caddr_t);
  92 int (*legal_vif_num)(int);
  93 u_long (*ip_mcast_src)(int);
  94
  95 int (*rsvp_input_p)(struct mbuf **, int *, int);
  96 int (*ip_rsvp_vif)(struct socket *, struct sockopt *);
  97 void (*ip_rsvp_force_done)(struct socket *);
  98
  99 /*
 100  * Nominal space allocated to a raw ip socket.
 101  */
 102 #define RIPSNDQ         8192
 103 #define RIPRCVQ         8192
 104
 105 /*
 106  * Raw interface to IP protocol.
 107  */
 108
 109 /*
 110  * Initialize raw connection block queue.
 111  */
 112 void
 113 rip_init(void)
 114 {
 115         in_pcbinfo_init(&ripcbinfo, 0, FALSE);
 116         in_pcbportinfo_init(&ripcbportinfo, 1, 0);
 117         /*
 118          * XXX We don't use the hash list for raw IP, but it's easier
 119          * to allocate a one entry hash list than it is to check all
 120          * over the place for hashbase == NULL.
 121          */
 122         ripcbinfo.hashbase = hashinit(1, M_PCB, &ripcbinfo.hashmask);
 123         in_pcbportinfo_set(&ripcbinfo, &ripcbportinfo, 1);
 124         ripcbinfo.wildcardhashbase = hashinit(1, M_PCB,
 125                                               &ripcbinfo.wildcardhashmask);
 126         ripcbinfo.ipi_size = sizeof(struct inpcb);
 127 }
 128
 129 /*
 130  * Setup generic address and protocol structures
 131  * for raw_input routine, then pass them along with
 132  * mbuf chain.
 133  */
 134 int
 135 rip_input(struct mbuf **mp, int *offp, int proto)
 136 {
 137         struct sockaddr_in ripsrc = { sizeof ripsrc, AF_INET };
 138         struct mbuf *m = *mp;
 139         struct ip *ip = mtod(m, struct ip *);
 140         struct inpcb *inp;
 141         struct inpcb *last = NULL;
 142         struct mbuf *opts = NULL;
 143
 144         ASSERT_NETISR0;
 145
 146         *mp = NULL;
 147
 148         ripsrc.sin_addr = ip->ip_src;
 149         LIST_FOREACH(inp, &ripcbinfo.pcblisthead, inp_list) {
 150                 if (inp->inp_flags & INP_PLACEMARKER)
 151                         continue;
 152 #ifdef INET6
 153                 if (!INP_ISIPV4(inp))
 154                         continue;
 155 #endif
 156                 if (inp->inp_ip_p && inp->inp_ip_p != proto)
 157                         continue;
 158                 if (inp->inp_laddr.s_addr != INADDR_ANY &&
 159                     inp->inp_laddr.s_addr != ip->ip_dst.s_addr)
 160                         continue;
 161                 if (inp->inp_faddr.s_addr != INADDR_ANY &&
 162                     inp->inp_faddr.s_addr != ip->ip_src.s_addr)
 163                         continue;
 164                 if (last) {
 165                         struct mbuf *n = m_copypacket(m, M_NOWAIT);
 166
 167                         if (n) {
 168                                 lwkt_gettoken(&last->inp_socket->so_rcv.ssb_token);
 169                                 if (last->inp_flags & INP_CONTROLOPTS ||
 170                                     last->inp_socket->so_options & SO_TIMESTAMP)
 171                                     ip_savecontrol(last, &opts, ip, n);
 172                                 if (ssb_appendaddr(&last->inp_socket->so_rcv,
 173                                             (struct sockaddr *)&ripsrc, n,
 174                                             opts) == 0) {
 175                                         m_freem(n);
 176                                         if (opts)
 177                                             m_freem(opts);
 178                                         soroverflow(last->inp_socket);
 179                                 } else {
 180                                         sorwakeup(last->inp_socket);
 181                                 }
 182                                 lwkt_reltoken(&last->inp_socket->so_rcv.ssb_token);
 183                                 opts = NULL;
 184                         }
 185                 }
 186                 last = inp;
 187         }
 188         /* Check the minimum TTL for socket. */
 189         if (last && ip->ip_ttl < last->inp_ip_minttl) {
 190                 m_freem(opts);
 191                 ipstat.ips_delivered--;
 192         } else if (last) {
 193                 if (last->inp_flags & INP_CONTROLOPTS ||
 194                     last->inp_socket->so_options & SO_TIMESTAMP)
 195                         ip_savecontrol(last, &opts, ip, m);
 196                 lwkt_gettoken(&last->inp_socket->so_rcv.ssb_token);
 197                 if (ssb_appendaddr(&last->inp_socket->so_rcv,
 198                     (struct sockaddr *)&ripsrc, m, opts) == 0) {
 199                         m_freem(m);
 200                         if (opts)
 201                             m_freem(opts);
 202                         soroverflow(last->inp_socket);
 203                 } else {
 204                         sorwakeup(last->inp_socket);
 205                 }
 206                 lwkt_reltoken(&last->inp_socket->so_rcv.ssb_token);
 207         } else {
 208                 m_freem(m);
 209                 ipstat.ips_noproto++;
 210                 ipstat.ips_delivered--;
 211         }
 212         return(IPPROTO_DONE);
 213 }
 214
 215 /*
 216  * Generate IP header and pass packet to ip_output.
 217  * Tack on options user may have setup with control call.
 218  */
 219 int
 220 rip_output(struct mbuf *m, struct socket *so, ...)
 221 {
 222         struct ip *ip;
 223         struct inpcb *inp = so->so_pcb;
 224         __va_list ap;
 225         int flags = (so->so_options & SO_DONTROUTE) | IP_ALLOWBROADCAST;
 226         u_long dst;
 227
 228         ASSERT_NETISR0;
 229
 230         __va_start(ap, so);
 231         dst = __va_arg(ap, u_long);
 232         __va_end(ap);
 233
 234         /*
 235          * If the user handed us a complete IP packet, use it.
 236          * Otherwise, allocate an mbuf for a header and fill it in.
 237          */
 238         if ((inp->inp_flags & INP_HDRINCL) == 0) {
 239                 if (m->m_pkthdr.len + sizeof(struct ip) > IP_MAXPACKET) {
 240                         m_freem(m);
 241                         return(EMSGSIZE);
 242                 }
 243                 M_PREPEND(m, sizeof(struct ip), M_WAITOK);
 244                 ip = mtod(m, struct ip *);
 245                 ip->ip_tos = inp->inp_ip_tos;
 246                 ip->ip_off = 0;
 247                 ip->ip_p = inp->inp_ip_p;
 248                 ip->ip_len = htons(m->m_pkthdr.len); /* incls header now */
 249                 ip->ip_src = inp->inp_laddr;
 250                 ip->ip_dst.s_addr = dst;
 251                 ip->ip_ttl = inp->inp_ip_ttl;
 252         } else {
 253                 int hlen;
 254                 int ip_len;
 255
 256                 if (m->m_pkthdr.len > IP_MAXPACKET) {
 257                         m_freem(m);
 258                         return(EMSGSIZE);
 259                 }
 260                 if (m->m_len < sizeof(struct ip)) {
 261                         m = m_pullup(m, sizeof(struct ip));
 262                         if (m == NULL)
 263                                 return ENOBUFS;
 264                 }
 265                 ip = mtod(m, struct ip *);
 266                 hlen = IP_VHL_HL(ip->ip_vhl) << 2;
 267                 ip_len = ntohs(ip->ip_len);     /* includes header */
 268
 269                 /*
 270                  * Don't allow both user specified and setsockopt options.
 271                  * Don't allow packet length sizes that will crash.
 272                  */
 273                 if (hlen < sizeof(struct ip) ||
 274                     (hlen != sizeof(struct ip) && inp->inp_options) ||
 275                     ip_len > m->m_pkthdr.len ||
 276                     ip_len < hlen)
 277                 {
 278                         m_freem(m);
 279                         return EINVAL;
 280                 }
 281
 282                 /*
 283                  * System supplies ip_id if passed as 0.
 284                  */
 285                 if (ip->ip_id == 0)
 286                         ip->ip_id = ip_newid();
 287
 288                 /* Prevent ip_output from overwriting header fields */
 289                 flags |= IP_RAWOUTPUT;
 290                 ipstat.ips_rawout++;
 291         }
 292
 293         return ip_output(m, inp->inp_options, &inp->inp_route, flags,
 294                          inp->inp_moptions, inp);
 295 }
 296
 297 /*
 298  * Raw IP socket option processing.
 299  */
 300 void
 301 rip_ctloutput(netmsg_t msg)
 302 {
 303         struct socket *so = msg->base.nm_so;
 304         struct sockopt *sopt = msg->ctloutput.nm_sopt;
 305         struct  inpcb *inp = so->so_pcb;
 306         int     error, optval;
 307
 308         ASSERT_NETISR0;
 309
 310         error = 0;
 311
 312         /* Get socket's owner cpuid hint */
 313         if (sopt->sopt_level == SOL_SOCKET &&
 314             sopt->sopt_dir == SOPT_GET &&
 315             sopt->sopt_name == SO_CPUHINT) {
 316                 optval = mycpuid;
 317                 soopt_from_kbuf(sopt, &optval, sizeof(optval));
 318                 goto done;
 319         }
 320
 321         if (sopt->sopt_level != IPPROTO_IP) {
 322                 error = EINVAL;
 323                 goto done;
 324         }
 325
 326         switch (sopt->sopt_dir) {
 327         case SOPT_GET:
 328                 switch (sopt->sopt_name) {
 329                 case IP_HDRINCL:
 330                         optval = inp->inp_flags & INP_HDRINCL;
 331                         soopt_from_kbuf(sopt, &optval, sizeof optval);
 332                         break;
 333
 334                 case IP_FW_X:
 335                         error = ip_fw3_sockopt(sopt);
 336                         break;
 337
 338                 case IP_FW_ADD: /* ADD actually returns the body... */
 339                 case IP_FW_GET:
 340                 case IP_FW_TBL_GET:
 341                 case IP_FW_TBL_EXPIRE: /* returns # of expired addresses */
 342                         error = ip_fw_sockopt(sopt);
 343                         break;
 344
 345                 case IP_DUMMYNET_GET:
 346                         error = ip_dn_sockopt(sopt);
 347                         break ;
 348
 349                 case MRT_INIT:
 350                 case MRT_DONE:
 351                 case MRT_ADD_VIF:
 352                 case MRT_DEL_VIF:
 353                 case MRT_ADD_MFC:
 354                 case MRT_DEL_MFC:
 355                 case MRT_VERSION:
 356                 case MRT_ASSERT:
 357                 case MRT_API_SUPPORT:
 358                 case MRT_API_CONFIG:
 359                 case MRT_ADD_BW_UPCALL:
 360                 case MRT_DEL_BW_UPCALL:
 361                         error = ip_mrouter_get ? ip_mrouter_get(so, sopt) :
 362                                 EOPNOTSUPP;
 363                         break;
 364
 365                 default:
 366                         ip_ctloutput(msg);
 367                         /* msg invalid now */
 368                         return;
 369                 }
 370                 break;
 371
 372         case SOPT_SET:
 373                 switch (sopt->sopt_name) {
 374                 case IP_HDRINCL:
 375                         error = soopt_to_kbuf(sopt, &optval, sizeof optval,
 376                                               sizeof optval);
 377                         if (error)
 378                                 break;
 379                         if (optval)
 380                                 inp->inp_flags |= INP_HDRINCL;
 381                         else
 382                                 inp->inp_flags &= ~INP_HDRINCL;
 383                         break;
 384
 385                 case IP_FW_X:
 386                         error = ip_fw3_sockopt(sopt);
 387                         break;
 388
 389                 case IP_FW_ADD:
 390                 case IP_FW_DEL:
 391                 case IP_FW_FLUSH:
 392                 case IP_FW_ZERO:
 393                 case IP_FW_RESETLOG:
 394                 case IP_FW_TBL_CREATE:
 395                 case IP_FW_TBL_DESTROY:
 396                 case IP_FW_TBL_ADD:
 397                 case IP_FW_TBL_DEL:
 398                 case IP_FW_TBL_FLUSH:
 399                 case IP_FW_TBL_ZERO:
 400                 case IP_FW_TBL_EXPIRE:
 401                         error = ip_fw_sockopt(sopt);
 402                         break;
 403
 404                 case IP_DUMMYNET_CONFIGURE:
 405                 case IP_DUMMYNET_DEL:
 406                 case IP_DUMMYNET_FLUSH:
 407                         error = ip_dn_sockopt(sopt);
 408                         break;
 409
 410                 case IP_RSVP_ON:
 411                         error = ip_rsvp_init(so);
 412                         break;
 413
 414                 case IP_RSVP_OFF:
 415                         error = ip_rsvp_done();
 416                         break;
 417
 418                 case IP_RSVP_VIF_ON:
 419                 case IP_RSVP_VIF_OFF:
 420                         error = ip_rsvp_vif ?
 421                                 ip_rsvp_vif(so, sopt) : EINVAL;
 422                         break;
 423
 424                 case MRT_INIT:
 425                 case MRT_DONE:
 426                 case MRT_ADD_VIF:
 427                 case MRT_DEL_VIF:
 428                 case MRT_ADD_MFC:
 429                 case MRT_DEL_MFC:
 430                 case MRT_VERSION:
 431                 case MRT_ASSERT:
 432                 case MRT_API_SUPPORT:
 433                 case MRT_API_CONFIG:
 434                 case MRT_ADD_BW_UPCALL:
 435                 case MRT_DEL_BW_UPCALL:
 436                         error = ip_mrouter_set ? ip_mrouter_set(so, sopt) :
 437                                         EOPNOTSUPP;
 438                         break;
 439
 440                 default:
 441                         ip_ctloutput(msg);
 442                         /* msg invalid now */
 443                         return;
 444                 }
 445                 break;
 446         }
 447 done:
 448         lwkt_replymsg(&msg->lmsg, error);
 449 }
 450
 451 u_long  rip_sendspace = RIPSNDQ;
 452 u_long  rip_recvspace = RIPRCVQ;
 453
 454 SYSCTL_INT(_net_inet_raw, OID_AUTO, maxdgram, CTLFLAG_RW,
 455     &rip_sendspace, 0, "Maximum outgoing raw IP datagram size");
 456 SYSCTL_INT(_net_inet_raw, OID_AUTO, recvspace, CTLFLAG_RW,
 457     &rip_recvspace, 0, "Maximum incoming raw IP datagram size");
 458
 459 static void
 460 rip_attach(netmsg_t msg)
 461 {
 462         struct socket *so = msg->base.nm_so;
 463         int proto = msg->attach.nm_proto;
 464         struct pru_attach_info *ai = msg->attach.nm_ai;
 465         struct inpcb *inp;
 466         int error;
 467
 468         ASSERT_NETISR0;
 469
 470         inp = so->so_pcb;
 471         if (inp)
 472                 panic("rip_attach");
 473         error = caps_priv_check(ai->p_ucred, SYSCAP_NONET_RAW |
 474                                              __SYSCAP_NULLCRED);
 475         if (error)
 476                 goto done;
 477
 478         error = soreserve(so, rip_sendspace, rip_recvspace, ai->sb_rlimit);
 479         if (error)
 480                 goto done;
 481
 482         error = in_pcballoc(so, &ripcbinfo);
 483         if (error == 0) {
 484                 inp = (struct inpcb *)so->so_pcb;
 485                 inp->inp_ip_p = proto;
 486                 inp->inp_ip_ttl = ip_defttl;
 487         }
 488 done:
 489         lwkt_replymsg(&msg->lmsg, error);
 490 }
 491
 492 static void
 493 rip_detach(netmsg_t msg)
 494 {
 495         struct socket *so = msg->base.nm_so;
 496         struct inpcb *inp;
 497
 498         ASSERT_NETISR0;
 499
 500         inp = so->so_pcb;
 501         if (inp == NULL)
 502                 panic("rip_detach");
 503         if (so == ip_mrouter && ip_mrouter_done)
 504                 ip_mrouter_done();
 505         if (ip_rsvp_force_done)
 506                 ip_rsvp_force_done(so);
 507         if (so == ip_rsvpd)
 508                 ip_rsvp_done();
 509         in_pcbdetach(inp);
 510         lwkt_replymsg(&msg->lmsg, 0);
 511 }
 512
 513 static void
 514 rip_abort(netmsg_t msg)
 515 {
 516         /*
 517          * Raw socket does not support listen(2),
 518          * so this should never be called.
 519          */
 520         panic("rip_abort is called");
 521 }
 522
 523 static void
 524 rip_disconnect(netmsg_t msg)
 525 {
 526         struct socket *so = msg->base.nm_so;
 527         int error;
 528
 529         ASSERT_NETISR0;
 530
 531         if (so->so_state & SS_ISCONNECTED) {
 532                 soisdisconnected(so);
 533                 error = 0;
 534         } else {
 535                 error = ENOTCONN;
 536         }
 537         lwkt_replymsg(&msg->lmsg, error);
 538 }
 539
 540 static void
 541 rip_bind(netmsg_t msg)
 542 {
 543         struct socket *so = msg->base.nm_so;
 544         struct sockaddr *nam = msg->bind.nm_nam;
 545         struct inpcb *inp = so->so_pcb;
 546         struct sockaddr_in *addr = (struct sockaddr_in *)nam;
 547         int error;
 548
 549         ASSERT_NETISR0;
 550
 551         if (nam->sa_len == sizeof(*addr)) {
 552                 if (ifnet_array_isempty() ||
 553                     ((addr->sin_family != AF_INET) &&
 554                      (addr->sin_family != AF_IMPLINK)) ||
 555                     (addr->sin_addr.s_addr != INADDR_ANY &&
 556                      ifa_ifwithaddr((struct sockaddr *)addr) == 0)) {
 557                         error = EADDRNOTAVAIL;
 558                 } else {
 559                         inp->inp_laddr = addr->sin_addr;
 560                         error = 0;
 561                 }
 562         } else {
 563                 error = EINVAL;
 564         }
 565         lwkt_replymsg(&msg->lmsg, error);
 566 }
 567
 568 static void
 569 rip_connect(netmsg_t msg)
 570 {
 571         struct socket *so = msg->base.nm_so;
 572         struct sockaddr *nam = msg->connect.nm_nam;
 573         struct inpcb *inp = so->so_pcb;
 574         struct sockaddr_in *addr = (struct sockaddr_in *)nam;
 575         int error;
 576
 577         ASSERT_NETISR0;
 578
 579         if (nam->sa_len != sizeof(*addr)) {
 580                 error = EINVAL;
 581         } else if (ifnet_array_isempty()) {
 582                 error = EADDRNOTAVAIL;
 583         } else {
 584                 if ((addr->sin_family != AF_INET) &&
 585                     (addr->sin_family != AF_IMPLINK)) {
 586                         error = EAFNOSUPPORT;
 587                 } else {
 588                         inp->inp_faddr = addr->sin_addr;
 589                         soisconnected(so);
 590                         error = 0;
 591                 }
 592         }
 593         lwkt_replymsg(&msg->lmsg, error);
 594 }
 595
 596 static void
 597 rip_shutdown(netmsg_t msg)
 598 {
 599         ASSERT_NETISR0;
 600
 601         socantsendmore(msg->base.nm_so);
 602         lwkt_replymsg(&msg->lmsg, 0);
 603 }
 604
 605 static void
 606 rip_send(netmsg_t msg)
 607 {
 608         struct socket *so = msg->base.nm_so;
 609         struct mbuf *m = msg->send.nm_m;
 610         /*struct mbuf *control = msg->send.nm_control;*/
 611         struct sockaddr *nam = msg->send.nm_addr;
 612         /*int flags = msg->send.nm_flags;*/
 613         struct inpcb *inp = so->so_pcb;
 614         u_long dst;
 615         int error;
 616
 617         ASSERT_NETISR0;
 618
 619         if (so->so_state & SS_ISCONNECTED) {
 620                 if (nam) {
 621                         m_freem(m);
 622                         error = EISCONN;
 623                 } else {
 624                         dst = inp->inp_faddr.s_addr;
 625                         error = rip_output(m, so, dst);
 626                 }
 627         } else {
 628                 if (nam == NULL) {
 629                         m_freem(m);
 630                         error = ENOTCONN;
 631                 } else {
 632                         dst = ((struct sockaddr_in *)nam)->sin_addr.s_addr;
 633                         error = rip_output(m, so, dst);
 634                 }
 635         }
 636         lwkt_replymsg(&msg->lmsg, error);
 637 }
 638
 639 SYSCTL_PROC(_net_inet_raw, OID_AUTO/*XXX*/, pcblist, CTLFLAG_RD, &ripcbinfo, 1,
 640             in_pcblist_range, "S,xinpcb", "List of active raw IP sockets");
 641
 642 struct pr_usrreqs rip_usrreqs = {
 643         .pru_abort = rip_abort,
 644         .pru_accept = pr_generic_notsupp,
 645         .pru_attach = rip_attach,
 646         .pru_bind = rip_bind,
 647         .pru_connect = rip_connect,
 648         .pru_connect2 = pr_generic_notsupp,
 649         .pru_control = in_control_dispatch,
 650         .pru_detach = rip_detach,
 651         .pru_disconnect = rip_disconnect,
 652         .pru_listen = pr_generic_notsupp,
 653         .pru_peeraddr = in_setpeeraddr_dispatch,
 654         .pru_rcvd = pr_generic_notsupp,
 655         .pru_rcvoob = pr_generic_notsupp,
 656         .pru_send = rip_send,
 657         .pru_sense = pru_sense_null,
 658         .pru_shutdown = rip_shutdown,
 659         .pru_sockaddr = in_setsockaddr_dispatch,
 660         .pru_sosend = sosend,
 661         .pru_soreceive = soreceive
 662 };