sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern const struct sctp_cc_functions sctp_cc_functions[];
  58 extern const struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 void
  93 sctp_finish(void)
  94 {
  95         sctp_pcb_finish();
  96 }
  97
  98
  99
 100 void
 101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 102 {
 103         struct sctp_tmit_chunk *chk;
 104         uint16_t overhead;
 105
 106         /* Adjust that too */
 107         stcb->asoc.smallest_mtu = nxtsz;
 108         /* now off to subtract IP_DF flag if needed */
 109         overhead = IP_HDR_SIZE;
 110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 112         }
 113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 114                 if ((chk->send_size + overhead) > nxtsz) {
 115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 116                 }
 117         }
 118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 119                 if ((chk->send_size + overhead) > nxtsz) {
 120                         /*
 121                          * For this guy we also mark for immediate resend
 122                          * since we sent to big of chunk
 123                          */
 124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 126                                 sctp_flight_size_decrease(chk);
 127                                 sctp_total_flight_decrease(stcb, chk);
 128                                 chk->sent = SCTP_DATAGRAM_RESEND;
 129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 130                                 chk->rec.data.doing_fast_retransmit = 0;
 131                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 132                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 133                                             chk->whoTo->flight_size,
 134                                             chk->book_size,
 135                                             (uint32_t) (uintptr_t) chk->whoTo,
 136                                             chk->rec.data.TSN_seq);
 137                                 }
 138                                 /* Clear any time so NO RTT is being done */
 139                                 chk->do_rtt = 0;
 140                         }
 141                 }
 142         }
 143 }
 144
 145 #ifdef INET
 146 static void
 147 sctp_notify(struct sctp_inpcb *inp,
 148     struct sctp_tcb *stcb,
 149     struct sctp_nets *net,
 150     uint8_t icmp_type,
 151     uint8_t icmp_code,
 152     uint16_t ip_len,
 153     uint16_t next_mtu)
 154 {
 155 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 156         struct socket *so;
 157
 158 #endif
 159         int timer_stopped;
 160
 161         if (icmp_type != ICMP_UNREACH) {
 162                 /* We only care about unreachable */
 163                 SCTP_TCB_UNLOCK(stcb);
 164                 return;
 165         }
 166         if ((icmp_code == ICMP_UNREACH_NET) ||
 167             (icmp_code == ICMP_UNREACH_HOST) ||
 168             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 169             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 170             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 171             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 172             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 173             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 174
 175                 /*
 176                  * Hmm reachablity problems we must examine closely. If its
 177                  * not reachable, we may have lost a network. Or if there is
 178                  * NO protocol at the other end named SCTP. well we consider
 179                  * it a OOTB abort.
 180                  */
 181                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 182                         /* OK, that destination is NOT reachable. */
 183                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 184                         net->dest_state &= ~SCTP_ADDR_PF;
 185                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 186                             stcb, 0,
 187                             (void *)net, SCTP_SO_NOT_LOCKED);
 188                 }
 189                 SCTP_TCB_UNLOCK(stcb);
 190         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 191             (icmp_code == ICMP_UNREACH_PORT)) {
 192                 /*
 193                  * Here the peer is either playing tricks on us, including
 194                  * an address that belongs to someone who does not support
 195                  * SCTP OR was a userland implementation that shutdown and
 196                  * now is dead. In either case treat it like a OOTB abort
 197                  * with no TCB
 198                  */
 199                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 200 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 201                 so = SCTP_INP_SO(inp);
 202                 atomic_add_int(&stcb->asoc.refcnt, 1);
 203                 SCTP_TCB_UNLOCK(stcb);
 204                 SCTP_SOCKET_LOCK(so, 1);
 205                 SCTP_TCB_LOCK(stcb);
 206                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 207 #endif
 208                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 209                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 210 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 211                 SCTP_SOCKET_UNLOCK(so, 1);
 212                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 213 #endif
 214                 /* no need to unlock here, since the TCB is gone */
 215         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 216                 /* Find the next (smaller) MTU */
 217                 if (next_mtu == 0) {
 218                         /*
 219                          * Old type router that does not tell us what the
 220                          * next MTU is. Rats we will have to guess (in a
 221                          * educated fashion of course).
 222                          */
 223                         next_mtu = sctp_get_prev_mtu(ip_len);
 224                 }
 225                 /* Stop the PMTU timer. */
 226                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 227                         timer_stopped = 1;
 228                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 229                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 230                 } else {
 231                         timer_stopped = 0;
 232                 }
 233                 /* Update the path MTU. */
 234                 if (net->mtu > next_mtu) {
 235                         net->mtu = next_mtu;
 236                         if (net->port) {
 237                                 net->mtu -= sizeof(struct udphdr);
 238                         }
 239                 }
 240                 /* Update the association MTU */
 241                 if (stcb->asoc.smallest_mtu > next_mtu) {
 242                         sctp_pathmtu_adjustment(stcb, next_mtu);
 243                 }
 244                 /* Finally, start the PMTU timer if it was running before. */
 245                 if (timer_stopped) {
 246                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 247                 }
 248                 SCTP_TCB_UNLOCK(stcb);
 249         } else {
 250                 SCTP_TCB_UNLOCK(stcb);
 251         }
 252 }
 253
 254 void
 255 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 256 {
 257         struct ip *ip = vip;
 258         struct sctphdr *sh;
 259         struct icmp *icmph;
 260         uint32_t vrf_id;
 261
 262         /* FIX, for non-bsd is this right? */
 263         vrf_id = SCTP_DEFAULT_VRFID;
 264         if (sa->sa_family != AF_INET ||
 265             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 266                 return;
 267         }
 268         if (PRC_IS_REDIRECT(cmd)) {
 269                 ip = 0;
 270         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 271                 return;
 272         }
 273         if (ip) {
 274                 struct sctp_inpcb *inp = NULL;
 275                 struct sctp_tcb *stcb = NULL;
 276                 struct sctp_nets *net = NULL;
 277                 struct sockaddr_in to, from;
 278
 279                 icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 280                     sizeof(struct ip)));
 281
 282                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 283                 bzero(&to, sizeof(to));
 284                 bzero(&from, sizeof(from));
 285                 from.sin_family = to.sin_family = AF_INET;
 286                 from.sin_len = to.sin_len = sizeof(to);
 287                 from.sin_port = sh->src_port;
 288                 from.sin_addr = ip->ip_src;
 289                 to.sin_port = sh->dest_port;
 290                 to.sin_addr = ip->ip_dst;
 291                 /*
 292                  * 'to' holds the dest of the packet that failed to be sent.
 293                  * 'from' holds our local endpoint address. Thus we reverse
 294                  * the to and the from in the lookup.
 295                  */
 296                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
 297                     (struct sockaddr *)&from,
 298                     &inp, &net, 1, vrf_id);
 299                 if ((stcb != NULL) &&
 300                     (net != NULL) &&
 301                     (inp != NULL) &&
 302                     (inp->sctp_socket != NULL)) {
 303                         /* Check the verification tag */
 304                         if (ntohl(sh->v_tag) != 0) {
 305                                 /*
 306                                  * This must be the verification tag used
 307                                  * for sending out packets. We don't
 308                                  * consider packets reflecting the
 309                                  * verification tag.
 310                                  */
 311                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 312                                         SCTP_TCB_UNLOCK(stcb);
 313                                         return;
 314                                 }
 315                         } else {
 316                                 /*
 317                                  * In this case we could check if we got an
 318                                  * INIT chunk and if the initiate tag
 319                                  * matches. But this is not there yet...
 320                                  */
 321                                 SCTP_TCB_UNLOCK(stcb);
 322                                 return;
 323                         }
 324                         sctp_notify(inp, stcb, net,
 325                             icmph->icmp_type,
 326                             icmph->icmp_code,
 327                             ntohs(ip->ip_len),
 328                             ntohs(icmph->icmp_nextmtu));
 329                 } else {
 330                         if ((stcb == NULL) && (inp != NULL)) {
 331                                 /* reduce ref-count */
 332                                 SCTP_INP_WLOCK(inp);
 333                                 SCTP_INP_DECR_REF(inp);
 334                                 SCTP_INP_WUNLOCK(inp);
 335                         }
 336                         if (stcb) {
 337                                 SCTP_TCB_UNLOCK(stcb);
 338                         }
 339                 }
 340         }
 341         return;
 342 }
 343
 344 #endif
 345
 346 static int
 347 sctp_getcred(SYSCTL_HANDLER_ARGS)
 348 {
 349         struct xucred xuc;
 350         struct sockaddr_in addrs[2];
 351         struct sctp_inpcb *inp;
 352         struct sctp_nets *net;
 353         struct sctp_tcb *stcb;
 354         int error;
 355         uint32_t vrf_id;
 356
 357         /* FIX, for non-bsd is this right? */
 358         vrf_id = SCTP_DEFAULT_VRFID;
 359
 360         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 361
 362         if (error)
 363                 return (error);
 364
 365         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 366         if (error)
 367                 return (error);
 368
 369         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 370             sintosa(&addrs[0]),
 371             &inp, &net, 1, vrf_id);
 372         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 373                 if ((inp != NULL) && (stcb == NULL)) {
 374                         /* reduce ref-count */
 375                         SCTP_INP_WLOCK(inp);
 376                         SCTP_INP_DECR_REF(inp);
 377                         goto cred_can_cont;
 378                 }
 379                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 380                 error = ENOENT;
 381                 goto out;
 382         }
 383         SCTP_TCB_UNLOCK(stcb);
 384         /*
 385          * We use the write lock here, only since in the error leg we need
 386          * it. If we used RLOCK, then we would have to
 387          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 388          * Better to use higher wlock.
 389          */
 390         SCTP_INP_WLOCK(inp);
 391 cred_can_cont:
 392         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 393         if (error) {
 394                 SCTP_INP_WUNLOCK(inp);
 395                 goto out;
 396         }
 397         cru2x(inp->sctp_socket->so_cred, &xuc);
 398         SCTP_INP_WUNLOCK(inp);
 399         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 400 out:
 401         return (error);
 402 }
 403
 404 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 405     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 406
 407
 408 #ifdef INET
 409 static void
 410 sctp_abort(struct socket *so)
 411 {
 412         struct sctp_inpcb *inp;
 413         uint32_t flags;
 414
 415         inp = (struct sctp_inpcb *)so->so_pcb;
 416         if (inp == NULL) {
 417                 return;
 418         }
 419 sctp_must_try_again:
 420         flags = inp->sctp_flags;
 421 #ifdef SCTP_LOG_CLOSING
 422         sctp_log_closing(inp, NULL, 17);
 423 #endif
 424         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 425             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 426 #ifdef SCTP_LOG_CLOSING
 427                 sctp_log_closing(inp, NULL, 16);
 428 #endif
 429                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 430                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 431                 SOCK_LOCK(so);
 432                 SCTP_SB_CLEAR(so->so_snd);
 433                 /*
 434                  * same for the rcv ones, they are only here for the
 435                  * accounting/select.
 436                  */
 437                 SCTP_SB_CLEAR(so->so_rcv);
 438
 439                 /* Now null out the reference, we are completely detached. */
 440                 so->so_pcb = NULL;
 441                 SOCK_UNLOCK(so);
 442         } else {
 443                 flags = inp->sctp_flags;
 444                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 445                         goto sctp_must_try_again;
 446                 }
 447         }
 448         return;
 449 }
 450
 451 static int
 452 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 453 {
 454         struct sctp_inpcb *inp;
 455         struct inpcb *ip_inp;
 456         int error;
 457         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 458
 459         inp = (struct sctp_inpcb *)so->so_pcb;
 460         if (inp != 0) {
 461                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 462                 return (EINVAL);
 463         }
 464         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 465                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 466                 if (error) {
 467                         return (error);
 468                 }
 469         }
 470         error = sctp_inpcb_alloc(so, vrf_id);
 471         if (error) {
 472                 return (error);
 473         }
 474         inp = (struct sctp_inpcb *)so->so_pcb;
 475         SCTP_INP_WLOCK(inp);
 476         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 477         ip_inp = &inp->ip_inp.inp;
 478         ip_inp->inp_vflag |= INP_IPV4;
 479         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 480         SCTP_INP_WUNLOCK(inp);
 481         return (0);
 482 }
 483
 484 static int
 485 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 486 {
 487         struct sctp_inpcb *inp;
 488
 489         inp = (struct sctp_inpcb *)so->so_pcb;
 490         if (inp == NULL) {
 491                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 492                 return (EINVAL);
 493         }
 494         if (addr != NULL) {
 495                 if ((addr->sa_family != AF_INET) ||
 496                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 497                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 498                         return (EINVAL);
 499                 }
 500         }
 501         return (sctp_inpcb_bind(so, addr, NULL, p));
 502 }
 503
 504 #endif
 505 void
 506 sctp_close(struct socket *so)
 507 {
 508         struct sctp_inpcb *inp;
 509         uint32_t flags;
 510
 511         inp = (struct sctp_inpcb *)so->so_pcb;
 512         if (inp == NULL)
 513                 return;
 514
 515         /*
 516          * Inform all the lower layer assoc that we are done.
 517          */
 518 sctp_must_try_again:
 519         flags = inp->sctp_flags;
 520 #ifdef SCTP_LOG_CLOSING
 521         sctp_log_closing(inp, NULL, 17);
 522 #endif
 523         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 524             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 525                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 526                     (so->so_rcv.sb_cc > 0)) {
 527 #ifdef SCTP_LOG_CLOSING
 528                         sctp_log_closing(inp, NULL, 13);
 529 #endif
 530                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 531                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 532                 } else {
 533 #ifdef SCTP_LOG_CLOSING
 534                         sctp_log_closing(inp, NULL, 14);
 535 #endif
 536                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 537                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 538                 }
 539                 /*
 540                  * The socket is now detached, no matter what the state of
 541                  * the SCTP association.
 542                  */
 543                 SOCK_LOCK(so);
 544                 SCTP_SB_CLEAR(so->so_snd);
 545                 /*
 546                  * same for the rcv ones, they are only here for the
 547                  * accounting/select.
 548                  */
 549                 SCTP_SB_CLEAR(so->so_rcv);
 550
 551                 /* Now null out the reference, we are completely detached. */
 552                 so->so_pcb = NULL;
 553                 SOCK_UNLOCK(so);
 554         } else {
 555                 flags = inp->sctp_flags;
 556                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 557                         goto sctp_must_try_again;
 558                 }
 559         }
 560         return;
 561 }
 562
 563
 564 int
 565 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 566     struct mbuf *control, struct thread *p);
 567
 568
 569 int
 570 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 571     struct mbuf *control, struct thread *p)
 572 {
 573         struct sctp_inpcb *inp;
 574         int error;
 575
 576         inp = (struct sctp_inpcb *)so->so_pcb;
 577         if (inp == NULL) {
 578                 if (control) {
 579                         sctp_m_freem(control);
 580                         control = NULL;
 581                 }
 582                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 583                 sctp_m_freem(m);
 584                 return (EINVAL);
 585         }
 586         /* Got to have an to address if we are NOT a connected socket */
 587         if ((addr == NULL) &&
 588             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 589             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 590                 goto connected_type;
 591         } else if (addr == NULL) {
 592                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 593                 error = EDESTADDRREQ;
 594                 sctp_m_freem(m);
 595                 if (control) {
 596                         sctp_m_freem(control);
 597                         control = NULL;
 598                 }
 599                 return (error);
 600         }
 601 #ifdef INET6
 602         if (addr->sa_family != AF_INET) {
 603                 /* must be a v4 address! */
 604                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 605                 sctp_m_freem(m);
 606                 if (control) {
 607                         sctp_m_freem(control);
 608                         control = NULL;
 609                 }
 610                 error = EDESTADDRREQ;
 611                 return (error);
 612         }
 613 #endif                          /* INET6 */
 614 connected_type:
 615         /* now what about control */
 616         if (control) {
 617                 if (inp->control) {
 618                         SCTP_PRINTF("huh? control set?\n");
 619                         sctp_m_freem(inp->control);
 620                         inp->control = NULL;
 621                 }
 622                 inp->control = control;
 623         }
 624         /* Place the data */
 625         if (inp->pkt) {
 626                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 627                 inp->pkt_last = m;
 628         } else {
 629                 inp->pkt_last = inp->pkt = m;
 630         }
 631         if (
 632         /* FreeBSD uses a flag passed */
 633             ((flags & PRUS_MORETOCOME) == 0)
 634             ) {
 635                 /*
 636                  * note with the current version this code will only be used
 637                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 638                  * re-defining sosend to use the sctp_sosend. One can
 639                  * optionally switch back to this code (by changing back the
 640                  * definitions) but this is not advisable. This code is used
 641                  * by FreeBSD when sending a file with sendfile() though.
 642                  */
 643                 int ret;
 644
 645                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 646                 inp->pkt = NULL;
 647                 inp->control = NULL;
 648                 return (ret);
 649         } else {
 650                 return (0);
 651         }
 652 }
 653
 654 int
 655 sctp_disconnect(struct socket *so)
 656 {
 657         struct sctp_inpcb *inp;
 658
 659         inp = (struct sctp_inpcb *)so->so_pcb;
 660         if (inp == NULL) {
 661                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 662                 return (ENOTCONN);
 663         }
 664         SCTP_INP_RLOCK(inp);
 665         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 666             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 667                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 668                         /* No connection */
 669                         SCTP_INP_RUNLOCK(inp);
 670                         return (0);
 671                 } else {
 672                         struct sctp_association *asoc;
 673                         struct sctp_tcb *stcb;
 674
 675                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 676                         if (stcb == NULL) {
 677                                 SCTP_INP_RUNLOCK(inp);
 678                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 679                                 return (EINVAL);
 680                         }
 681                         SCTP_TCB_LOCK(stcb);
 682                         asoc = &stcb->asoc;
 683                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 684                                 /* We are about to be freed, out of here */
 685                                 SCTP_TCB_UNLOCK(stcb);
 686                                 SCTP_INP_RUNLOCK(inp);
 687                                 return (0);
 688                         }
 689                         if (((so->so_options & SO_LINGER) &&
 690                             (so->so_linger == 0)) ||
 691                             (so->so_rcv.sb_cc > 0)) {
 692                                 if (SCTP_GET_STATE(asoc) !=
 693                                     SCTP_STATE_COOKIE_WAIT) {
 694                                         /* Left with Data unread */
 695                                         struct mbuf *err;
 696
 697                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 698                                         if (err) {
 699                                                 /*
 700                                                  * Fill in the user
 701                                                  * initiated abort
 702                                                  */
 703                                                 struct sctp_paramhdr *ph;
 704
 705                                                 ph = mtod(err, struct sctp_paramhdr *);
 706                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 707                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 708                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 709                                         }
 710                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 711                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 712                                 }
 713                                 SCTP_INP_RUNLOCK(inp);
 714                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 715                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 716                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 717                                 }
 718                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 719                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 720                                 /* No unlock tcb assoc is gone */
 721                                 return (0);
 722                         }
 723                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 724                             TAILQ_EMPTY(&asoc->sent_queue) &&
 725                             (asoc->stream_queue_cnt == 0)) {
 726                                 /* there is nothing queued to send, so done */
 727                                 if (asoc->locked_on_sending) {
 728                                         goto abort_anyway;
 729                                 }
 730                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 731                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 732                                         /* only send SHUTDOWN 1st time thru */
 733                                         struct sctp_nets *netp;
 734
 735                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 736                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 737                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 738                                         }
 739                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 740                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 741                                         sctp_stop_timers_for_shutdown(stcb);
 742                                         if (stcb->asoc.alternate) {
 743                                                 netp = stcb->asoc.alternate;
 744                                         } else {
 745                                                 netp = stcb->asoc.primary_destination;
 746                                         }
 747                                         sctp_send_shutdown(stcb, netp);
 748                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 749                                             stcb->sctp_ep, stcb, netp);
 750                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 751                                             stcb->sctp_ep, stcb, netp);
 752                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 753                                 }
 754                         } else {
 755                                 /*
 756                                  * we still got (or just got) data to send,
 757                                  * so set SHUTDOWN_PENDING
 758                                  */
 759                                 /*
 760                                  * XXX sockets draft says that SCTP_EOF
 761                                  * should be sent with no data. currently,
 762                                  * we will allow user data to be sent first
 763                                  * and move to SHUTDOWN-PENDING
 764                                  */
 765                                 struct sctp_nets *netp;
 766
 767                                 if (stcb->asoc.alternate) {
 768                                         netp = stcb->asoc.alternate;
 769                                 } else {
 770                                         netp = stcb->asoc.primary_destination;
 771                                 }
 772
 773                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 774                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 775                                     netp);
 776                                 if (asoc->locked_on_sending) {
 777                                         /* Locked to send out the data */
 778                                         struct sctp_stream_queue_pending *sp;
 779
 780                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 781                                         if (sp == NULL) {
 782                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 783                                                     asoc->locked_on_sending->stream_no);
 784                                         } else {
 785                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 786                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 787                                         }
 788                                 }
 789                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 790                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 791                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 792                                         struct mbuf *op_err;
 793
 794                         abort_anyway:
 795                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 796                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 797                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 798                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 799                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 800                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 801                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 802                                         }
 803                                         SCTP_INP_RUNLOCK(inp);
 804                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 805                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 806                                         return (0);
 807                                 } else {
 808                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 809                                 }
 810                         }
 811                         soisdisconnecting(so);
 812                         SCTP_TCB_UNLOCK(stcb);
 813                         SCTP_INP_RUNLOCK(inp);
 814                         return (0);
 815                 }
 816                 /* not reached */
 817         } else {
 818                 /* UDP model does not support this */
 819                 SCTP_INP_RUNLOCK(inp);
 820                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 821                 return (EOPNOTSUPP);
 822         }
 823 }
 824
 825 int
 826 sctp_flush(struct socket *so, int how)
 827 {
 828         /*
 829          * We will just clear out the values and let subsequent close clear
 830          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 831          * they will not be able to read the data, the socket will block
 832          * that from happening.
 833          */
 834         struct sctp_inpcb *inp;
 835
 836         inp = (struct sctp_inpcb *)so->so_pcb;
 837         if (inp == NULL) {
 838                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 839                 return (EINVAL);
 840         }
 841         SCTP_INP_RLOCK(inp);
 842         /* For the 1 to many model this does nothing */
 843         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 844                 SCTP_INP_RUNLOCK(inp);
 845                 return (0);
 846         }
 847         SCTP_INP_RUNLOCK(inp);
 848         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 849                 /*
 850                  * First make sure the sb will be happy, we don't use these
 851                  * except maybe the count
 852                  */
 853                 SCTP_INP_WLOCK(inp);
 854                 SCTP_INP_READ_LOCK(inp);
 855                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 856                 SCTP_INP_READ_UNLOCK(inp);
 857                 SCTP_INP_WUNLOCK(inp);
 858                 so->so_rcv.sb_cc = 0;
 859                 so->so_rcv.sb_mbcnt = 0;
 860                 so->so_rcv.sb_mb = NULL;
 861         }
 862         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 863                 /*
 864                  * First make sure the sb will be happy, we don't use these
 865                  * except maybe the count
 866                  */
 867                 so->so_snd.sb_cc = 0;
 868                 so->so_snd.sb_mbcnt = 0;
 869                 so->so_snd.sb_mb = NULL;
 870
 871         }
 872         return (0);
 873 }
 874
 875 int
 876 sctp_shutdown(struct socket *so)
 877 {
 878         struct sctp_inpcb *inp;
 879
 880         inp = (struct sctp_inpcb *)so->so_pcb;
 881         if (inp == NULL) {
 882                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 883                 return (EINVAL);
 884         }
 885         SCTP_INP_RLOCK(inp);
 886         /* For UDP model this is a invalid call */
 887         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 888             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 889                 /* Restore the flags that the soshutdown took away. */
 890                 SOCKBUF_LOCK(&so->so_rcv);
 891                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 892                 SOCKBUF_UNLOCK(&so->so_rcv);
 893                 /* This proc will wakeup for read and do nothing (I hope) */
 894                 SCTP_INP_RUNLOCK(inp);
 895                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 896                 return (EOPNOTSUPP);
 897         } else {
 898                 /*
 899                  * Ok, if we reach here its the TCP model and it is either a
 900                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 901                  * against it.
 902                  */
 903                 struct sctp_tcb *stcb;
 904                 struct sctp_association *asoc;
 905                 struct sctp_nets *netp;
 906
 907                 if ((so->so_state &
 908                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 909                         SCTP_INP_RUNLOCK(inp);
 910                         return (ENOTCONN);
 911                 }
 912                 socantsendmore(so);
 913
 914                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 915                 if (stcb == NULL) {
 916                         /*
 917                          * Ok, we hit the case that the shutdown call was
 918                          * made after an abort or something. Nothing to do
 919                          * now.
 920                          */
 921                         SCTP_INP_RUNLOCK(inp);
 922                         return (0);
 923                 }
 924                 SCTP_TCB_LOCK(stcb);
 925                 asoc = &stcb->asoc;
 926                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 927                         SCTP_TCB_UNLOCK(stcb);
 928                         SCTP_INP_RUNLOCK(inp);
 929                         return (0);
 930                 }
 931                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 932                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 933                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 934                         /*
 935                          * If we are not in or before ESTABLISHED, there is
 936                          * no protocol action required.
 937                          */
 938                         SCTP_TCB_UNLOCK(stcb);
 939                         SCTP_INP_RUNLOCK(inp);
 940                         return (0);
 941                 }
 942                 if (stcb->asoc.alternate) {
 943                         netp = stcb->asoc.alternate;
 944                 } else {
 945                         netp = stcb->asoc.primary_destination;
 946                 }
 947                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 948                     TAILQ_EMPTY(&asoc->send_queue) &&
 949                     TAILQ_EMPTY(&asoc->sent_queue) &&
 950                     (asoc->stream_queue_cnt == 0)) {
 951                         if (asoc->locked_on_sending) {
 952                                 goto abort_anyway;
 953                         }
 954                         /* there is nothing queued to send, so I'm done... */
 955                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 956                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 957                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 958                         sctp_stop_timers_for_shutdown(stcb);
 959                         sctp_send_shutdown(stcb, netp);
 960                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 961                             stcb->sctp_ep, stcb, netp);
 962                 } else {
 963                         /*
 964                          * We still got (or just got) data to send, so set
 965                          * SHUTDOWN_PENDING.
 966                          */
 967                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 968                         if (asoc->locked_on_sending) {
 969                                 /* Locked to send out the data */
 970                                 struct sctp_stream_queue_pending *sp;
 971
 972                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 973                                 if (sp == NULL) {
 974                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 975                                             asoc->locked_on_sending->stream_no);
 976                                 } else {
 977                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
 978                                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
 979                                         }
 980                                 }
 981                         }
 982                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 983                             TAILQ_EMPTY(&asoc->sent_queue) &&
 984                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 985                                 struct mbuf *op_err;
 986
 987                 abort_anyway:
 988                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 989                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 990                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 991                                     op_err, SCTP_SO_LOCKED);
 992                                 SCTP_INP_RUNLOCK(inp);
 993                                 return (0);
 994                         }
 995                 }
 996                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
 997                 /*
 998                  * XXX: Why do this in the case where we have still data
 999                  * queued?
1000                  */
1001                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1002                 SCTP_TCB_UNLOCK(stcb);
1003                 SCTP_INP_RUNLOCK(inp);
1004                 return (0);
1005         }
1006 }
1007
1008 /*
1009  * copies a "user" presentable address and removes embedded scope, etc.
1010  * returns 0 on success, 1 on error
1011  */
1012 static uint32_t
1013 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1014 {
1015 #ifdef INET6
1016         struct sockaddr_in6 lsa6;
1017
1018         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1019             &lsa6);
1020 #endif
1021         memcpy(ss, sa, sa->sa_len);
1022         return (0);
1023 }
1024
1025
1026
1027 /*
1028  * NOTE: assumes addr lock is held
1029  */
1030 static size_t
1031 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1032     struct sctp_tcb *stcb,
1033     size_t limit,
1034     struct sockaddr_storage *sas,
1035     uint32_t vrf_id)
1036 {
1037         struct sctp_ifn *sctp_ifn;
1038         struct sctp_ifa *sctp_ifa;
1039         size_t actual;
1040         int loopback_scope;
1041
1042 #if defined(INET)
1043         int ipv4_local_scope, ipv4_addr_legal;
1044
1045 #endif
1046 #if defined(INET6)
1047         int local_scope, site_scope, ipv6_addr_legal;
1048
1049 #endif
1050         struct sctp_vrf *vrf;
1051
1052         actual = 0;
1053         if (limit <= 0)
1054                 return (actual);
1055
1056         if (stcb) {
1057                 /* Turn on all the appropriate scope */
1058                 loopback_scope = stcb->asoc.scope.loopback_scope;
1059 #if defined(INET)
1060                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1061                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1062 #endif
1063 #if defined(INET6)
1064                 local_scope = stcb->asoc.scope.local_scope;
1065                 site_scope = stcb->asoc.scope.site_scope;
1066                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1067 #endif
1068         } else {
1069                 /* Use generic values for endpoints. */
1070                 loopback_scope = 1;
1071 #if defined(INET)
1072                 ipv4_local_scope = 1;
1073 #endif
1074 #if defined(INET6)
1075                 local_scope = 1;
1076                 site_scope = 1;
1077 #endif
1078                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1079 #if defined(INET6)
1080                         ipv6_addr_legal = 1;
1081 #endif
1082 #if defined(INET)
1083                         if (SCTP_IPV6_V6ONLY(inp)) {
1084                                 ipv4_addr_legal = 0;
1085                         } else {
1086                                 ipv4_addr_legal = 1;
1087                         }
1088 #endif
1089                 } else {
1090 #if defined(INET6)
1091                         ipv6_addr_legal = 0;
1092 #endif
1093 #if defined(INET)
1094                         ipv4_addr_legal = 1;
1095 #endif
1096                 }
1097         }
1098         vrf = sctp_find_vrf(vrf_id);
1099         if (vrf == NULL) {
1100                 return (0);
1101         }
1102         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1103                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1104                         if ((loopback_scope == 0) &&
1105                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1106                                 /* Skip loopback if loopback_scope not set */
1107                                 continue;
1108                         }
1109                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1110                                 if (stcb) {
1111                                         /*
1112                                          * For the BOUND-ALL case, the list
1113                                          * associated with a TCB is Always
1114                                          * considered a reverse list.. i.e.
1115                                          * it lists addresses that are NOT
1116                                          * part of the association. If this
1117                                          * is one of those we must skip it.
1118                                          */
1119                                         if (sctp_is_addr_restricted(stcb,
1120                                             sctp_ifa)) {
1121                                                 continue;
1122                                         }
1123                                 }
1124                                 switch (sctp_ifa->address.sa.sa_family) {
1125 #ifdef INET
1126                                 case AF_INET:
1127                                         if (ipv4_addr_legal) {
1128                                                 struct sockaddr_in *sin;
1129
1130                                                 sin = &sctp_ifa->address.sin;
1131                                                 if (sin->sin_addr.s_addr == 0) {
1132                                                         /*
1133                                                          * we skip
1134                                                          * unspecifed
1135                                                          * addresses
1136                                                          */
1137                                                         continue;
1138                                                 }
1139                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1140                                                     &sin->sin_addr) != 0) {
1141                                                         continue;
1142                                                 }
1143                                                 if ((ipv4_local_scope == 0) &&
1144                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1145                                                         continue;
1146                                                 }
1147 #ifdef INET6
1148                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1149                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1150                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1151                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1152                                                         actual += sizeof(struct sockaddr_in6);
1153                                                 } else {
1154 #endif
1155                                                         memcpy(sas, sin, sizeof(*sin));
1156                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1157                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1158                                                         actual += sizeof(*sin);
1159 #ifdef INET6
1160                                                 }
1161 #endif
1162                                                 if (actual >= limit) {
1163                                                         return (actual);
1164                                                 }
1165                                         } else {
1166                                                 continue;
1167                                         }
1168                                         break;
1169 #endif
1170 #ifdef INET6
1171                                 case AF_INET6:
1172                                         if (ipv6_addr_legal) {
1173                                                 struct sockaddr_in6 *sin6;
1174
1175                                                 sin6 = &sctp_ifa->address.sin6;
1176                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1177                                                         /*
1178                                                          * we skip
1179                                                          * unspecifed
1180                                                          * addresses
1181                                                          */
1182                                                         continue;
1183                                                 }
1184                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1185                                                     &sin6->sin6_addr) != 0) {
1186                                                         continue;
1187                                                 }
1188                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1189                                                         if (local_scope == 0)
1190                                                                 continue;
1191                                                         if (sin6->sin6_scope_id == 0) {
1192                                                                 if (sa6_recoverscope(sin6) != 0)
1193                                                                         /*
1194                                                                          *
1195                                                                          * bad
1196                                                                          *
1197                                                                          * li
1198                                                                          * nk
1199                                                                          *
1200                                                                          * loc
1201                                                                          * al
1202                                                                          *
1203                                                                          * add
1204                                                                          * re
1205                                                                          * ss
1206                                                                          * */
1207                                                                         continue;
1208                                                         }
1209                                                 }
1210                                                 if ((site_scope == 0) &&
1211                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1212                                                         continue;
1213                                                 }
1214                                                 memcpy(sas, sin6, sizeof(*sin6));
1215                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1216                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1217                                                 actual += sizeof(*sin6);
1218                                                 if (actual >= limit) {
1219                                                         return (actual);
1220                                                 }
1221                                         } else {
1222                                                 continue;
1223                                         }
1224                                         break;
1225 #endif
1226                                 default:
1227                                         /* TSNH */
1228                                         break;
1229                                 }
1230                         }
1231                 }
1232         } else {
1233                 struct sctp_laddr *laddr;
1234
1235                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1236                         if (stcb) {
1237                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1238                                         continue;
1239                                 }
1240                         }
1241                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1242                                 continue;
1243                         switch (laddr->ifa->address.sa.sa_family) {
1244 #ifdef INET
1245                         case AF_INET:
1246                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1247                                 break;
1248 #endif
1249 #ifdef INET6
1250                         case AF_INET6:
1251                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1252                                 break;
1253 #endif
1254                         default:
1255                                 /* TSNH */
1256                                 break;
1257                         }
1258                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1259                             laddr->ifa->address.sa.sa_len);
1260                         actual += laddr->ifa->address.sa.sa_len;
1261                         if (actual >= limit) {
1262                                 return (actual);
1263                         }
1264                 }
1265         }
1266         return (actual);
1267 }
1268
1269 static size_t
1270 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1271     struct sctp_tcb *stcb,
1272     size_t limit,
1273     struct sockaddr_storage *sas)
1274 {
1275         size_t size = 0;
1276
1277         SCTP_IPI_ADDR_RLOCK();
1278         /* fill up addresses for the endpoint's default vrf */
1279         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1280             inp->def_vrf_id);
1281         SCTP_IPI_ADDR_RUNLOCK();
1282         return (size);
1283 }
1284
1285 /*
1286  * NOTE: assumes addr lock is held
1287  */
1288 static int
1289 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1290 {
1291         int cnt = 0;
1292         struct sctp_vrf *vrf = NULL;
1293
1294         /*
1295          * In both sub-set bound an bound_all cases we return the MAXIMUM
1296          * number of addresses that you COULD get. In reality the sub-set
1297          * bound may have an exclusion list for a given TCB OR in the
1298          * bound-all case a TCB may NOT include the loopback or other
1299          * addresses as well.
1300          */
1301         vrf = sctp_find_vrf(vrf_id);
1302         if (vrf == NULL) {
1303                 return (0);
1304         }
1305         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1306                 struct sctp_ifn *sctp_ifn;
1307                 struct sctp_ifa *sctp_ifa;
1308
1309                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1310                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1311                                 /* Count them if they are the right type */
1312                                 switch (sctp_ifa->address.sa.sa_family) {
1313 #ifdef INET
1314                                 case AF_INET:
1315 #ifdef INET6
1316                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1317                                                 cnt += sizeof(struct sockaddr_in6);
1318                                         else
1319                                                 cnt += sizeof(struct sockaddr_in);
1320 #else
1321                                         cnt += sizeof(struct sockaddr_in);
1322 #endif
1323                                         break;
1324 #endif
1325 #ifdef INET6
1326                                 case AF_INET6:
1327                                         cnt += sizeof(struct sockaddr_in6);
1328                                         break;
1329 #endif
1330                                 default:
1331                                         break;
1332                                 }
1333                         }
1334                 }
1335         } else {
1336                 struct sctp_laddr *laddr;
1337
1338                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1339                         switch (laddr->ifa->address.sa.sa_family) {
1340 #ifdef INET
1341                         case AF_INET:
1342 #ifdef INET6
1343                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1344                                         cnt += sizeof(struct sockaddr_in6);
1345                                 else
1346                                         cnt += sizeof(struct sockaddr_in);
1347 #else
1348                                 cnt += sizeof(struct sockaddr_in);
1349 #endif
1350                                 break;
1351 #endif
1352 #ifdef INET6
1353                         case AF_INET6:
1354                                 cnt += sizeof(struct sockaddr_in6);
1355                                 break;
1356 #endif
1357                         default:
1358                                 break;
1359                         }
1360                 }
1361         }
1362         return (cnt);
1363 }
1364
1365 static int
1366 sctp_count_max_addresses(struct sctp_inpcb *inp)
1367 {
1368         int cnt = 0;
1369
1370         SCTP_IPI_ADDR_RLOCK();
1371         /* count addresses for the endpoint's default VRF */
1372         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1373         SCTP_IPI_ADDR_RUNLOCK();
1374         return (cnt);
1375 }
1376
1377 static int
1378 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1379     size_t optsize, void *p, int delay)
1380 {
1381         int error = 0;
1382         int creat_lock_on = 0;
1383         struct sctp_tcb *stcb = NULL;
1384         struct sockaddr *sa;
1385         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1386         uint32_t vrf_id;
1387         int bad_addresses = 0;
1388         sctp_assoc_t *a_id;
1389
1390         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1391
1392         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1393             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1394                 /* We are already connected AND the TCP model */
1395                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1396                 return (EADDRINUSE);
1397         }
1398         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1399             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1400                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1401                 return (EINVAL);
1402         }
1403         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1404                 SCTP_INP_RLOCK(inp);
1405                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1406                 SCTP_INP_RUNLOCK(inp);
1407         }
1408         if (stcb) {
1409                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1410                 return (EALREADY);
1411         }
1412         SCTP_INP_INCR_REF(inp);
1413         SCTP_ASOC_CREATE_LOCK(inp);
1414         creat_lock_on = 1;
1415         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1416             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1417                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1418                 error = EFAULT;
1419                 goto out_now;
1420         }
1421         totaddrp = (unsigned int *)optval;
1422         totaddr = *totaddrp;
1423         sa = (struct sockaddr *)(totaddrp + 1);
1424         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (unsigned int)(optsize - sizeof(int)), &bad_addresses);
1425         if ((stcb != NULL) || bad_addresses) {
1426                 /* Already have or am bring up an association */
1427                 SCTP_ASOC_CREATE_UNLOCK(inp);
1428                 creat_lock_on = 0;
1429                 if (stcb)
1430                         SCTP_TCB_UNLOCK(stcb);
1431                 if (bad_addresses == 0) {
1432                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1433                         error = EALREADY;
1434                 }
1435                 goto out_now;
1436         }
1437 #ifdef INET6
1438         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1439             (num_v6 > 0)) {
1440                 error = EINVAL;
1441                 goto out_now;
1442         }
1443         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1444             (num_v4 > 0)) {
1445                 struct in6pcb *inp6;
1446
1447                 inp6 = (struct in6pcb *)inp;
1448                 if (SCTP_IPV6_V6ONLY(inp6)) {
1449                         /*
1450                          * if IPV6_V6ONLY flag, ignore connections destined
1451                          * to a v4 addr or v4-mapped addr
1452                          */
1453                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1454                         error = EINVAL;
1455                         goto out_now;
1456                 }
1457         }
1458 #endif                          /* INET6 */
1459         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1460             SCTP_PCB_FLAGS_UNBOUND) {
1461                 /* Bind a ephemeral port */
1462                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1463                 if (error) {
1464                         goto out_now;
1465                 }
1466         }
1467         /* FIX ME: do we want to pass in a vrf on the connect call? */
1468         vrf_id = inp->def_vrf_id;
1469
1470
1471         /* We are GOOD to go */
1472         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1473             inp->sctp_ep.pre_open_stream_count,
1474             (struct thread *)p
1475             );
1476         if (stcb == NULL) {
1477                 /* Gak! no memory */
1478                 goto out_now;
1479         }
1480         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1481                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1482                 /* Set the connected flag so we can queue data */
1483                 soisconnecting(so);
1484         }
1485         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1486         /* move to second address */
1487         switch (sa->sa_family) {
1488 #ifdef INET
1489         case AF_INET:
1490                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1491                 break;
1492 #endif
1493 #ifdef INET6
1494         case AF_INET6:
1495                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1496                 break;
1497 #endif
1498         default:
1499                 break;
1500         }
1501
1502         error = 0;
1503         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1504         /* Fill in the return id */
1505         if (error) {
1506                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1507                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1508                 goto out_now;
1509         }
1510         a_id = (sctp_assoc_t *) optval;
1511         *a_id = sctp_get_associd(stcb);
1512
1513         /* initialize authentication parameters for the assoc */
1514         sctp_initialize_auth_params(inp, stcb);
1515
1516         if (delay) {
1517                 /* doing delayed connection */
1518                 stcb->asoc.delayed_connection = 1;
1519                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1520         } else {
1521                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1522                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1523         }
1524         SCTP_TCB_UNLOCK(stcb);
1525         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1526                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1527                 /* Set the connected flag so we can queue data */
1528                 soisconnecting(so);
1529         }
1530 out_now:
1531         if (creat_lock_on) {
1532                 SCTP_ASOC_CREATE_UNLOCK(inp);
1533         }
1534         SCTP_INP_DECR_REF(inp);
1535         return (error);
1536 }
1537
1538 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1539         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1540             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1541                 SCTP_INP_RLOCK(inp); \
1542                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1543                 if (stcb) { \
1544                         SCTP_TCB_LOCK(stcb); \
1545                 } \
1546                 SCTP_INP_RUNLOCK(inp); \
1547         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1548                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1549                 if (stcb == NULL) { \
1550                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1551                         error = ENOENT; \
1552                         break; \
1553                 } \
1554         } else { \
1555                 stcb = NULL; \
1556         } \
1557   }
1558
1559
1560 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1561         if (size < sizeof(type)) { \
1562                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1563                 error = EINVAL; \
1564                 break; \
1565         } else { \
1566                 destp = (type *)srcp; \
1567         } \
1568       }
1569
1570 static int
1571 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1572     void *p)
1573 {
1574         struct sctp_inpcb *inp = NULL;
1575         int error, val = 0;
1576         struct sctp_tcb *stcb = NULL;
1577
1578         if (optval == NULL) {
1579                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1580                 return (EINVAL);
1581         }
1582         inp = (struct sctp_inpcb *)so->so_pcb;
1583         if (inp == NULL) {
1584                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1585                 return EINVAL;
1586         }
1587         error = 0;
1588
1589         switch (optname) {
1590         case SCTP_NODELAY:
1591         case SCTP_AUTOCLOSE:
1592         case SCTP_EXPLICIT_EOR:
1593         case SCTP_AUTO_ASCONF:
1594         case SCTP_DISABLE_FRAGMENTS:
1595         case SCTP_I_WANT_MAPPED_V4_ADDR:
1596         case SCTP_USE_EXT_RCVINFO:
1597                 SCTP_INP_RLOCK(inp);
1598                 switch (optname) {
1599                 case SCTP_DISABLE_FRAGMENTS:
1600                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1601                         break;
1602                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1603                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1604                         break;
1605                 case SCTP_AUTO_ASCONF:
1606                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1607                                 /* only valid for bound all sockets */
1608                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1609                         } else {
1610                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1611                                 error = EINVAL;
1612                                 goto flags_out;
1613                         }
1614                         break;
1615                 case SCTP_EXPLICIT_EOR:
1616                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1617                         break;
1618                 case SCTP_NODELAY:
1619                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1620                         break;
1621                 case SCTP_USE_EXT_RCVINFO:
1622                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1623                         break;
1624                 case SCTP_AUTOCLOSE:
1625                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1626                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1627                         else
1628                                 val = 0;
1629                         break;
1630
1631                 default:
1632                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1633                         error = ENOPROTOOPT;
1634                 }               /* end switch (sopt->sopt_name) */
1635                 if (*optsize < sizeof(val)) {
1636                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1637                         error = EINVAL;
1638                 }
1639 flags_out:
1640                 SCTP_INP_RUNLOCK(inp);
1641                 if (error == 0) {
1642                         /* return the option value */
1643                         *(int *)optval = val;
1644                         *optsize = sizeof(val);
1645                 }
1646                 break;
1647         case SCTP_GET_PACKET_LOG:
1648                 {
1649 #ifdef  SCTP_PACKET_LOGGING
1650                         uint8_t *target;
1651                         int ret;
1652
1653                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1654                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1655                         *optsize = ret;
1656 #else
1657                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1658                         error = EOPNOTSUPP;
1659 #endif
1660                         break;
1661                 }
1662         case SCTP_REUSE_PORT:
1663                 {
1664                         uint32_t *value;
1665
1666                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1667                                 /* Can't do this for a 1-m socket */
1668                                 error = EINVAL;
1669                                 break;
1670                         }
1671                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1672                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1673                         *optsize = sizeof(uint32_t);
1674                         break;
1675                 }
1676         case SCTP_PARTIAL_DELIVERY_POINT:
1677                 {
1678                         uint32_t *value;
1679
1680                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1681                         *value = inp->partial_delivery_point;
1682                         *optsize = sizeof(uint32_t);
1683                         break;
1684                 }
1685         case SCTP_FRAGMENT_INTERLEAVE:
1686                 {
1687                         uint32_t *value;
1688
1689                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1690                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1691                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1692                                         *value = SCTP_FRAG_LEVEL_2;
1693                                 } else {
1694                                         *value = SCTP_FRAG_LEVEL_1;
1695                                 }
1696                         } else {
1697                                 *value = SCTP_FRAG_LEVEL_0;
1698                         }
1699                         *optsize = sizeof(uint32_t);
1700                         break;
1701                 }
1702         case SCTP_INTERLEAVING_SUPPORTED:
1703                 {
1704                         struct sctp_assoc_value *av;
1705
1706                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1707                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1708
1709                         if (stcb) {
1710                                 av->assoc_value = stcb->asoc.idata_supported;
1711                                 SCTP_TCB_UNLOCK(stcb);
1712                         } else {
1713                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1714                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1715                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1716                                         SCTP_INP_RLOCK(inp);
1717                                         if (inp->idata_supported) {
1718                                                 av->assoc_value = 1;
1719                                         } else {
1720                                                 av->assoc_value = 0;
1721                                         }
1722                                         SCTP_INP_RUNLOCK(inp);
1723                                 } else {
1724                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1725                                         error = EINVAL;
1726                                 }
1727                         }
1728                         if (error == 0) {
1729                                 *optsize = sizeof(struct sctp_assoc_value);
1730                         }
1731                         break;
1732                 }
1733         case SCTP_CMT_ON_OFF:
1734                 {
1735                         struct sctp_assoc_value *av;
1736
1737                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1738                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1739                         if (stcb) {
1740                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1741                                 SCTP_TCB_UNLOCK(stcb);
1742                         } else {
1743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1745                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1746                                         SCTP_INP_RLOCK(inp);
1747                                         av->assoc_value = inp->sctp_cmt_on_off;
1748                                         SCTP_INP_RUNLOCK(inp);
1749                                 } else {
1750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1751                                         error = EINVAL;
1752                                 }
1753                         }
1754                         if (error == 0) {
1755                                 *optsize = sizeof(struct sctp_assoc_value);
1756                         }
1757                         break;
1758                 }
1759         case SCTP_PLUGGABLE_CC:
1760                 {
1761                         struct sctp_assoc_value *av;
1762
1763                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1764                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1765                         if (stcb) {
1766                                 av->assoc_value = stcb->asoc.congestion_control_module;
1767                                 SCTP_TCB_UNLOCK(stcb);
1768                         } else {
1769                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1770                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1771                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1772                                         SCTP_INP_RLOCK(inp);
1773                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1774                                         SCTP_INP_RUNLOCK(inp);
1775                                 } else {
1776                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1777                                         error = EINVAL;
1778                                 }
1779                         }
1780                         if (error == 0) {
1781                                 *optsize = sizeof(struct sctp_assoc_value);
1782                         }
1783                         break;
1784                 }
1785         case SCTP_CC_OPTION:
1786                 {
1787                         struct sctp_cc_option *cc_opt;
1788
1789                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1790                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1791                         if (stcb == NULL) {
1792                                 error = EINVAL;
1793                         } else {
1794                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1795                                         error = ENOTSUP;
1796                                 } else {
1797                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1798                                         *optsize = sizeof(struct sctp_cc_option);
1799                                 }
1800                                 SCTP_TCB_UNLOCK(stcb);
1801                         }
1802                         break;
1803                 }
1804         case SCTP_PLUGGABLE_SS:
1805                 {
1806                         struct sctp_assoc_value *av;
1807
1808                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1809                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1810                         if (stcb) {
1811                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1812                                 SCTP_TCB_UNLOCK(stcb);
1813                         } else {
1814                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1815                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1816                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1817                                         SCTP_INP_RLOCK(inp);
1818                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1819                                         SCTP_INP_RUNLOCK(inp);
1820                                 } else {
1821                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1822                                         error = EINVAL;
1823                                 }
1824                         }
1825                         if (error == 0) {
1826                                 *optsize = sizeof(struct sctp_assoc_value);
1827                         }
1828                         break;
1829                 }
1830         case SCTP_SS_VALUE:
1831                 {
1832                         struct sctp_stream_value *av;
1833
1834                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1835                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1836                         if (stcb) {
1837                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1838                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1839                                     &av->stream_value) < 0)) {
1840                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1841                                         error = EINVAL;
1842                                 } else {
1843                                         *optsize = sizeof(struct sctp_stream_value);
1844                                 }
1845                                 SCTP_TCB_UNLOCK(stcb);
1846                         } else {
1847                                 /*
1848                                  * Can't get stream value without
1849                                  * association
1850                                  */
1851                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1852                                 error = EINVAL;
1853                         }
1854                         break;
1855                 }
1856         case SCTP_GET_ADDR_LEN:
1857                 {
1858                         struct sctp_assoc_value *av;
1859
1860                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1861                         error = EINVAL;
1862 #ifdef INET
1863                         if (av->assoc_value == AF_INET) {
1864                                 av->assoc_value = sizeof(struct sockaddr_in);
1865                                 error = 0;
1866                         }
1867 #endif
1868 #ifdef INET6
1869                         if (av->assoc_value == AF_INET6) {
1870                                 av->assoc_value = sizeof(struct sockaddr_in6);
1871                                 error = 0;
1872                         }
1873 #endif
1874                         if (error) {
1875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1876                         } else {
1877                                 *optsize = sizeof(struct sctp_assoc_value);
1878                         }
1879                         break;
1880                 }
1881         case SCTP_GET_ASSOC_NUMBER:
1882                 {
1883                         uint32_t *value, cnt;
1884
1885                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1886                         SCTP_INP_RLOCK(inp);
1887                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1888                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1889                                 /* Can't do this for a 1-1 socket */
1890                                 error = EINVAL;
1891                                 SCTP_INP_RUNLOCK(inp);
1892                                 break;
1893                         }
1894                         cnt = 0;
1895                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1896                                 cnt++;
1897                         }
1898                         SCTP_INP_RUNLOCK(inp);
1899                         *value = cnt;
1900                         *optsize = sizeof(uint32_t);
1901                         break;
1902                 }
1903         case SCTP_GET_ASSOC_ID_LIST:
1904                 {
1905                         struct sctp_assoc_ids *ids;
1906                         uint32_t at;
1907                         size_t limit;
1908
1909                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1910                         SCTP_INP_RLOCK(inp);
1911                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1912                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1913                                 /* Can't do this for a 1-1 socket */
1914                                 error = EINVAL;
1915                                 SCTP_INP_RUNLOCK(inp);
1916                                 break;
1917                         }
1918                         at = 0;
1919                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1920                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1921                                 if (at < limit) {
1922                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1923                                         if (at == 0) {
1924                                                 error = EINVAL;
1925                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1926                                                 break;
1927                                         }
1928                                 } else {
1929                                         error = EINVAL;
1930                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1931                                         break;
1932                                 }
1933                         }
1934                         SCTP_INP_RUNLOCK(inp);
1935                         if (error == 0) {
1936                                 ids->gaids_number_of_ids = at;
1937                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1938                         }
1939                         break;
1940                 }
1941         case SCTP_CONTEXT:
1942                 {
1943                         struct sctp_assoc_value *av;
1944
1945                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1946                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1947
1948                         if (stcb) {
1949                                 av->assoc_value = stcb->asoc.context;
1950                                 SCTP_TCB_UNLOCK(stcb);
1951                         } else {
1952                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1953                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1954                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1955                                         SCTP_INP_RLOCK(inp);
1956                                         av->assoc_value = inp->sctp_context;
1957                                         SCTP_INP_RUNLOCK(inp);
1958                                 } else {
1959                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1960                                         error = EINVAL;
1961                                 }
1962                         }
1963                         if (error == 0) {
1964                                 *optsize = sizeof(struct sctp_assoc_value);
1965                         }
1966                         break;
1967                 }
1968         case SCTP_VRF_ID:
1969                 {
1970                         uint32_t *default_vrfid;
1971
1972                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1973                         *default_vrfid = inp->def_vrf_id;
1974                         *optsize = sizeof(uint32_t);
1975                         break;
1976                 }
1977         case SCTP_GET_ASOC_VRF:
1978                 {
1979                         struct sctp_assoc_value *id;
1980
1981                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1982                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1983                         if (stcb == NULL) {
1984                                 error = EINVAL;
1985                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1986                         } else {
1987                                 id->assoc_value = stcb->asoc.vrf_id;
1988                                 *optsize = sizeof(struct sctp_assoc_value);
1989                         }
1990                         break;
1991                 }
1992         case SCTP_GET_VRF_IDS:
1993                 {
1994                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1995                         error = EOPNOTSUPP;
1996                         break;
1997                 }
1998         case SCTP_GET_NONCE_VALUES:
1999                 {
2000                         struct sctp_get_nonce_values *gnv;
2001
2002                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2003                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2004
2005                         if (stcb) {
2006                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2007                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2008                                 SCTP_TCB_UNLOCK(stcb);
2009                                 *optsize = sizeof(struct sctp_get_nonce_values);
2010                         } else {
2011                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2012                                 error = ENOTCONN;
2013                         }
2014                         break;
2015                 }
2016         case SCTP_DELAYED_SACK:
2017                 {
2018                         struct sctp_sack_info *sack;
2019
2020                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2021                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2022                         if (stcb) {
2023                                 sack->sack_delay = stcb->asoc.delayed_ack;
2024                                 sack->sack_freq = stcb->asoc.sack_freq;
2025                                 SCTP_TCB_UNLOCK(stcb);
2026                         } else {
2027                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2028                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2029                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2030                                         SCTP_INP_RLOCK(inp);
2031                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2032                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2033                                         SCTP_INP_RUNLOCK(inp);
2034                                 } else {
2035                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2036                                         error = EINVAL;
2037                                 }
2038                         }
2039                         if (error == 0) {
2040                                 *optsize = sizeof(struct sctp_sack_info);
2041                         }
2042                         break;
2043                 }
2044         case SCTP_GET_SNDBUF_USE:
2045                 {
2046                         struct sctp_sockstat *ss;
2047
2048                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2049                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2050
2051                         if (stcb) {
2052                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2053                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2054                                     stcb->asoc.size_on_all_streams);
2055                                 SCTP_TCB_UNLOCK(stcb);
2056                                 *optsize = sizeof(struct sctp_sockstat);
2057                         } else {
2058                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2059                                 error = ENOTCONN;
2060                         }
2061                         break;
2062                 }
2063         case SCTP_MAX_BURST:
2064                 {
2065                         struct sctp_assoc_value *av;
2066
2067                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2068                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2069
2070                         if (stcb) {
2071                                 av->assoc_value = stcb->asoc.max_burst;
2072                                 SCTP_TCB_UNLOCK(stcb);
2073                         } else {
2074                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2075                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2076                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2077                                         SCTP_INP_RLOCK(inp);
2078                                         av->assoc_value = inp->sctp_ep.max_burst;
2079                                         SCTP_INP_RUNLOCK(inp);
2080                                 } else {
2081                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2082                                         error = EINVAL;
2083                                 }
2084                         }
2085                         if (error == 0) {
2086                                 *optsize = sizeof(struct sctp_assoc_value);
2087                         }
2088                         break;
2089                 }
2090         case SCTP_MAXSEG:
2091                 {
2092                         struct sctp_assoc_value *av;
2093                         int ovh;
2094
2095                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2096                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2097
2098                         if (stcb) {
2099                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2100                                 SCTP_TCB_UNLOCK(stcb);
2101                         } else {
2102                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2103                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2104                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2105                                         SCTP_INP_RLOCK(inp);
2106                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2107                                                 ovh = SCTP_MED_OVERHEAD;
2108                                         } else {
2109                                                 ovh = SCTP_MED_V4_OVERHEAD;
2110                                         }
2111                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2112                                                 av->assoc_value = 0;
2113                                         else
2114                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2115                                         SCTP_INP_RUNLOCK(inp);
2116                                 } else {
2117                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2118                                         error = EINVAL;
2119                                 }
2120                         }
2121                         if (error == 0) {
2122                                 *optsize = sizeof(struct sctp_assoc_value);
2123                         }
2124                         break;
2125                 }
2126         case SCTP_GET_STAT_LOG:
2127                 error = sctp_fill_stat_log(optval, optsize);
2128                 break;
2129         case SCTP_EVENTS:
2130                 {
2131                         struct sctp_event_subscribe *events;
2132
2133                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2134                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2135                         SCTP_INP_RLOCK(inp);
2136                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2137                                 events->sctp_data_io_event = 1;
2138
2139                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2140                                 events->sctp_association_event = 1;
2141
2142                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2143                                 events->sctp_address_event = 1;
2144
2145                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2146                                 events->sctp_send_failure_event = 1;
2147
2148                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2149                                 events->sctp_peer_error_event = 1;
2150
2151                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2152                                 events->sctp_shutdown_event = 1;
2153
2154                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2155                                 events->sctp_partial_delivery_event = 1;
2156
2157                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2158                                 events->sctp_adaptation_layer_event = 1;
2159
2160                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2161                                 events->sctp_authentication_event = 1;
2162
2163                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2164                                 events->sctp_sender_dry_event = 1;
2165
2166                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2167                                 events->sctp_stream_reset_event = 1;
2168                         SCTP_INP_RUNLOCK(inp);
2169                         *optsize = sizeof(struct sctp_event_subscribe);
2170                         break;
2171                 }
2172         case SCTP_ADAPTATION_LAYER:
2173                 {
2174                         uint32_t *value;
2175
2176                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2177
2178                         SCTP_INP_RLOCK(inp);
2179                         *value = inp->sctp_ep.adaptation_layer_indicator;
2180                         SCTP_INP_RUNLOCK(inp);
2181                         *optsize = sizeof(uint32_t);
2182                         break;
2183                 }
2184         case SCTP_SET_INITIAL_DBG_SEQ:
2185                 {
2186                         uint32_t *value;
2187
2188                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2189                         SCTP_INP_RLOCK(inp);
2190                         *value = inp->sctp_ep.initial_sequence_debug;
2191                         SCTP_INP_RUNLOCK(inp);
2192                         *optsize = sizeof(uint32_t);
2193                         break;
2194                 }
2195         case SCTP_GET_LOCAL_ADDR_SIZE:
2196                 {
2197                         uint32_t *value;
2198
2199                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2200                         SCTP_INP_RLOCK(inp);
2201                         *value = sctp_count_max_addresses(inp);
2202                         SCTP_INP_RUNLOCK(inp);
2203                         *optsize = sizeof(uint32_t);
2204                         break;
2205                 }
2206         case SCTP_GET_REMOTE_ADDR_SIZE:
2207                 {
2208                         uint32_t *value;
2209                         size_t size;
2210                         struct sctp_nets *net;
2211
2212                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2213                         /* FIXME MT: change to sctp_assoc_value? */
2214                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2215
2216                         if (stcb) {
2217                                 size = 0;
2218                                 /* Count the sizes */
2219                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2220                                         switch (net->ro._l_addr.sa.sa_family) {
2221 #ifdef INET
2222                                         case AF_INET:
2223 #ifdef INET6
2224                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2225                                                         size += sizeof(struct sockaddr_in6);
2226                                                 } else {
2227                                                         size += sizeof(struct sockaddr_in);
2228                                                 }
2229 #else
2230                                                 size += sizeof(struct sockaddr_in);
2231 #endif
2232                                                 break;
2233 #endif
2234 #ifdef INET6
2235                                         case AF_INET6:
2236                                                 size += sizeof(struct sockaddr_in6);
2237                                                 break;
2238 #endif
2239                                         default:
2240                                                 break;
2241                                         }
2242                                 }
2243                                 SCTP_TCB_UNLOCK(stcb);
2244                                 *value = (uint32_t) size;
2245                                 *optsize = sizeof(uint32_t);
2246                         } else {
2247                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2248                                 error = ENOTCONN;
2249                         }
2250                         break;
2251                 }
2252         case SCTP_GET_PEER_ADDRESSES:
2253                 /*
2254                  * Get the address information, an array is passed in to
2255                  * fill up we pack it.
2256                  */
2257                 {
2258                         size_t cpsz, left;
2259                         struct sockaddr_storage *sas;
2260                         struct sctp_nets *net;
2261                         struct sctp_getaddresses *saddr;
2262
2263                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2264                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2265
2266                         if (stcb) {
2267                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2268                                 *optsize = sizeof(struct sctp_getaddresses);
2269                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2270
2271                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2272                                         switch (net->ro._l_addr.sa.sa_family) {
2273 #ifdef INET
2274                                         case AF_INET:
2275 #ifdef INET6
2276                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2277                                                         cpsz = sizeof(struct sockaddr_in6);
2278                                                 } else {
2279                                                         cpsz = sizeof(struct sockaddr_in);
2280                                                 }
2281 #else
2282                                                 cpsz = sizeof(struct sockaddr_in);
2283 #endif
2284                                                 break;
2285 #endif
2286 #ifdef INET6
2287                                         case AF_INET6:
2288                                                 cpsz = sizeof(struct sockaddr_in6);
2289                                                 break;
2290 #endif
2291                                         default:
2292                                                 cpsz = 0;
2293                                                 break;
2294                                         }
2295                                         if (cpsz == 0) {
2296                                                 break;
2297                                         }
2298                                         if (left < cpsz) {
2299                                                 /* not enough room. */
2300                                                 break;
2301                                         }
2302 #if defined(INET) && defined(INET6)
2303                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2304                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2305                                                 /* Must map the address */
2306                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2307                                                     (struct sockaddr_in6 *)sas);
2308                                         } else {
2309                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2310                                         }
2311 #else
2312                                         memcpy(sas, &net->ro._l_addr, cpsz);
2313 #endif
2314                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2315
2316                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2317                                         left -= cpsz;
2318                                         *optsize += cpsz;
2319                                 }
2320                                 SCTP_TCB_UNLOCK(stcb);
2321                         } else {
2322                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2323                                 error = ENOENT;
2324                         }
2325                         break;
2326                 }
2327         case SCTP_GET_LOCAL_ADDRESSES:
2328                 {
2329                         size_t limit, actual;
2330                         struct sockaddr_storage *sas;
2331                         struct sctp_getaddresses *saddr;
2332
2333                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2334                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2335
2336                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2337                         limit = *optsize - sizeof(sctp_assoc_t);
2338                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2339                         if (stcb) {
2340                                 SCTP_TCB_UNLOCK(stcb);
2341                         }
2342                         *optsize = sizeof(struct sockaddr_storage) + actual;
2343                         break;
2344                 }
2345         case SCTP_PEER_ADDR_PARAMS:
2346                 {
2347                         struct sctp_paddrparams *paddrp;
2348                         struct sctp_nets *net;
2349                         struct sockaddr *addr;
2350
2351 #if defined(INET) && defined(INET6)
2352                         struct sockaddr_in sin_store;
2353
2354 #endif
2355
2356                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2357                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2358
2359 #if defined(INET) && defined(INET6)
2360                         if (paddrp->spp_address.ss_family == AF_INET6) {
2361                                 struct sockaddr_in6 *sin6;
2362
2363                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2364                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2365                                         in6_sin6_2_sin(&sin_store, sin6);
2366                                         addr = (struct sockaddr *)&sin_store;
2367                                 } else {
2368                                         addr = (struct sockaddr *)&paddrp->spp_address;
2369                                 }
2370                         } else {
2371                                 addr = (struct sockaddr *)&paddrp->spp_address;
2372                         }
2373 #else
2374                         addr = (struct sockaddr *)&paddrp->spp_address;
2375 #endif
2376                         if (stcb != NULL) {
2377                                 net = sctp_findnet(stcb, addr);
2378                         } else {
2379                                 /*
2380                                  * We increment here since
2381                                  * sctp_findassociation_ep_addr() wil do a
2382                                  * decrement if it finds the stcb as long as
2383                                  * the locked tcb (last argument) is NOT a
2384                                  * TCB.. aka NULL.
2385                                  */
2386                                 net = NULL;
2387                                 SCTP_INP_INCR_REF(inp);
2388                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2389                                 if (stcb == NULL) {
2390                                         SCTP_INP_DECR_REF(inp);
2391                                 }
2392                         }
2393                         if ((stcb != NULL) && (net == NULL)) {
2394 #ifdef INET
2395                                 if (addr->sa_family == AF_INET) {
2396                                         struct sockaddr_in *sin;
2397
2398                                         sin = (struct sockaddr_in *)addr;
2399                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2400                                                 error = EINVAL;
2401                                                 SCTP_TCB_UNLOCK(stcb);
2402                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2403                                                 break;
2404                                         }
2405                                 } else
2406 #endif
2407 #ifdef INET6
2408                                 if (addr->sa_family == AF_INET6) {
2409                                         struct sockaddr_in6 *sin6;
2410
2411                                         sin6 = (struct sockaddr_in6 *)addr;
2412                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2413                                                 error = EINVAL;
2414                                                 SCTP_TCB_UNLOCK(stcb);
2415                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2416                                                 break;
2417                                         }
2418                                 } else
2419 #endif
2420                                 {
2421                                         error = EAFNOSUPPORT;
2422                                         SCTP_TCB_UNLOCK(stcb);
2423                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2424                                         break;
2425                                 }
2426                         }
2427                         if (stcb != NULL) {
2428                                 /* Applies to the specific association */
2429                                 paddrp->spp_flags = 0;
2430                                 if (net != NULL) {
2431                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2432                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2433                                         paddrp->spp_pathmtu = net->mtu;
2434                                         switch (net->ro._l_addr.sa.sa_family) {
2435 #ifdef INET
2436                                         case AF_INET:
2437                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2438                                                 break;
2439 #endif
2440 #ifdef INET6
2441                                         case AF_INET6:
2442                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2443                                                 break;
2444 #endif
2445                                         default:
2446                                                 break;
2447                                         }
2448                                         /* get flags for HB */
2449                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2450                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2451                                         } else {
2452                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2453                                         }
2454                                         /* get flags for PMTU */
2455                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2456                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2457                                         } else {
2458                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2459                                         }
2460                                         if (net->dscp & 0x01) {
2461                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2462                                                 paddrp->spp_flags |= SPP_DSCP;
2463                                         }
2464 #ifdef INET6
2465                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2466                                             (net->flowlabel & 0x80000000)) {
2467                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2468                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2469                                         }
2470 #endif
2471                                 } else {
2472                                         /*
2473                                          * No destination so return default
2474                                          * value
2475                                          */
2476                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2477                                         paddrp->spp_pathmtu = 0;
2478                                         if (stcb->asoc.default_dscp & 0x01) {
2479                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2480                                                 paddrp->spp_flags |= SPP_DSCP;
2481                                         }
2482 #ifdef INET6
2483                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2484                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2485                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2486                                         }
2487 #endif
2488                                         /* default settings should be these */
2489                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2490                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2491                                         } else {
2492                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2493                                         }
2494                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2495                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2496                                         } else {
2497                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2498                                         }
2499                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2500                                 }
2501                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2502                                 SCTP_TCB_UNLOCK(stcb);
2503                         } else {
2504                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2505                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2506                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2507                                         /* Use endpoint defaults */
2508                                         SCTP_INP_RLOCK(inp);
2509                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2510                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2511                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2512                                         /* get inp's default */
2513                                         if (inp->sctp_ep.default_dscp & 0x01) {
2514                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2515                                                 paddrp->spp_flags |= SPP_DSCP;
2516                                         }
2517 #ifdef INET6
2518                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2519                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2520                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2521                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2522                                         }
2523 #endif
2524                                         /* can't return this */
2525                                         paddrp->spp_pathmtu = 0;
2526
2527                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2528                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2529                                         } else {
2530                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2531                                         }
2532                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2533                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2534                                         } else {
2535                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2536                                         }
2537                                         SCTP_INP_RUNLOCK(inp);
2538                                 } else {
2539                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2540                                         error = EINVAL;
2541                                 }
2542                         }
2543                         if (error == 0) {
2544                                 *optsize = sizeof(struct sctp_paddrparams);
2545                         }
2546                         break;
2547                 }
2548         case SCTP_GET_PEER_ADDR_INFO:
2549                 {
2550                         struct sctp_paddrinfo *paddri;
2551                         struct sctp_nets *net;
2552                         struct sockaddr *addr;
2553
2554 #if defined(INET) && defined(INET6)
2555                         struct sockaddr_in sin_store;
2556
2557 #endif
2558
2559                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2560                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2561
2562 #if defined(INET) && defined(INET6)
2563                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2564                                 struct sockaddr_in6 *sin6;
2565
2566                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2567                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2568                                         in6_sin6_2_sin(&sin_store, sin6);
2569                                         addr = (struct sockaddr *)&sin_store;
2570                                 } else {
2571                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2572                                 }
2573                         } else {
2574                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2575                         }
2576 #else
2577                         addr = (struct sockaddr *)&paddri->spinfo_address;
2578 #endif
2579                         if (stcb != NULL) {
2580                                 net = sctp_findnet(stcb, addr);
2581                         } else {
2582                                 /*
2583                                  * We increment here since
2584                                  * sctp_findassociation_ep_addr() wil do a
2585                                  * decrement if it finds the stcb as long as
2586                                  * the locked tcb (last argument) is NOT a
2587                                  * TCB.. aka NULL.
2588                                  */
2589                                 net = NULL;
2590                                 SCTP_INP_INCR_REF(inp);
2591                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2592                                 if (stcb == NULL) {
2593                                         SCTP_INP_DECR_REF(inp);
2594                                 }
2595                         }
2596
2597                         if ((stcb != NULL) && (net != NULL)) {
2598                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2599                                         /* It's unconfirmed */
2600                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2601                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2602                                         /* It's active */
2603                                         paddri->spinfo_state = SCTP_ACTIVE;
2604                                 } else {
2605                                         /* It's inactive */
2606                                         paddri->spinfo_state = SCTP_INACTIVE;
2607                                 }
2608                                 paddri->spinfo_cwnd = net->cwnd;
2609                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2610                                 paddri->spinfo_rto = net->RTO;
2611                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2612                                 paddri->spinfo_mtu = net->mtu;
2613                                 switch (addr->sa_family) {
2614 #if defined(INET)
2615                                 case AF_INET:
2616                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2617                                         break;
2618 #endif
2619 #if defined(INET6)
2620                                 case AF_INET6:
2621                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2622                                         break;
2623 #endif
2624                                 default:
2625                                         break;
2626                                 }
2627                                 SCTP_TCB_UNLOCK(stcb);
2628                                 *optsize = sizeof(struct sctp_paddrinfo);
2629                         } else {
2630                                 if (stcb != NULL) {
2631                                         SCTP_TCB_UNLOCK(stcb);
2632                                 }
2633                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2634                                 error = ENOENT;
2635                         }
2636                         break;
2637                 }
2638         case SCTP_PCB_STATUS:
2639                 {
2640                         struct sctp_pcbinfo *spcb;
2641
2642                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2643                         sctp_fill_pcbinfo(spcb);
2644                         *optsize = sizeof(struct sctp_pcbinfo);
2645                         break;
2646                 }
2647         case SCTP_STATUS:
2648                 {
2649                         struct sctp_nets *net;
2650                         struct sctp_status *sstat;
2651
2652                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2653                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2654
2655                         if (stcb == NULL) {
2656                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2657                                 error = EINVAL;
2658                                 break;
2659                         }
2660                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2661                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2662                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2663                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2664                         /*
2665                          * We can't include chunks that have been passed to
2666                          * the socket layer. Only things in queue.
2667                          */
2668                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2669                             stcb->asoc.cnt_on_all_streams);
2670
2671
2672                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2673                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2674                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2675                         memcpy(&sstat->sstat_primary.spinfo_address,
2676                             &stcb->asoc.primary_destination->ro._l_addr,
2677                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2678                         net = stcb->asoc.primary_destination;
2679                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2680                         /*
2681                          * Again the user can get info from sctp_constants.h
2682                          * for what the state of the network is.
2683                          */
2684                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2685                                 /* It's unconfirmed */
2686                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2687                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2688                                 /* It's active */
2689                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2690                         } else {
2691                                 /* It's inactive */
2692                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2693                         }
2694                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2695                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2696                         sstat->sstat_primary.spinfo_rto = net->RTO;
2697                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2698                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2699 #if defined(INET)
2700                         case AF_INET:
2701                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2702                                 break;
2703 #endif
2704 #if defined(INET6)
2705                         case AF_INET6:
2706                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2707                                 break;
2708 #endif
2709                         default:
2710                                 break;
2711                         }
2712                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2713                         SCTP_TCB_UNLOCK(stcb);
2714                         *optsize = sizeof(struct sctp_status);
2715                         break;
2716                 }
2717         case SCTP_RTOINFO:
2718                 {
2719                         struct sctp_rtoinfo *srto;
2720
2721                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2722                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2723
2724                         if (stcb) {
2725                                 srto->srto_initial = stcb->asoc.initial_rto;
2726                                 srto->srto_max = stcb->asoc.maxrto;
2727                                 srto->srto_min = stcb->asoc.minrto;
2728                                 SCTP_TCB_UNLOCK(stcb);
2729                         } else {
2730                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2731                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2732                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2733                                         SCTP_INP_RLOCK(inp);
2734                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2735                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2736                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2737                                         SCTP_INP_RUNLOCK(inp);
2738                                 } else {
2739                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2740                                         error = EINVAL;
2741                                 }
2742                         }
2743                         if (error == 0) {
2744                                 *optsize = sizeof(struct sctp_rtoinfo);
2745                         }
2746                         break;
2747                 }
2748         case SCTP_TIMEOUTS:
2749                 {
2750                         struct sctp_timeouts *stimo;
2751
2752                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2753                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2754
2755                         if (stcb) {
2756                                 stimo->stimo_init = stcb->asoc.timoinit;
2757                                 stimo->stimo_data = stcb->asoc.timodata;
2758                                 stimo->stimo_sack = stcb->asoc.timosack;
2759                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2760                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2761                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2762                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2763                                 SCTP_TCB_UNLOCK(stcb);
2764                                 *optsize = sizeof(struct sctp_timeouts);
2765                         } else {
2766                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2767                                 error = EINVAL;
2768                         }
2769                         break;
2770                 }
2771         case SCTP_ASSOCINFO:
2772                 {
2773                         struct sctp_assocparams *sasoc;
2774
2775                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2776                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2777
2778                         if (stcb) {
2779                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2780                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2781                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2782                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2783                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2784                                 SCTP_TCB_UNLOCK(stcb);
2785                         } else {
2786                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2787                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2788                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2789                                         SCTP_INP_RLOCK(inp);
2790                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2791                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2792                                         sasoc->sasoc_number_peer_destinations = 0;
2793                                         sasoc->sasoc_peer_rwnd = 0;
2794                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2795                                         SCTP_INP_RUNLOCK(inp);
2796                                 } else {
2797                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2798                                         error = EINVAL;
2799                                 }
2800                         }
2801                         if (error == 0) {
2802                                 *optsize = sizeof(struct sctp_assocparams);
2803                         }
2804                         break;
2805                 }
2806         case SCTP_DEFAULT_SEND_PARAM:
2807                 {
2808                         struct sctp_sndrcvinfo *s_info;
2809
2810                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2811                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2812
2813                         if (stcb) {
2814                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2815                                 SCTP_TCB_UNLOCK(stcb);
2816                         } else {
2817                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2818                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2819                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2820                                         SCTP_INP_RLOCK(inp);
2821                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2822                                         SCTP_INP_RUNLOCK(inp);
2823                                 } else {
2824                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2825                                         error = EINVAL;
2826                                 }
2827                         }
2828                         if (error == 0) {
2829                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2830                         }
2831                         break;
2832                 }
2833         case SCTP_INITMSG:
2834                 {
2835                         struct sctp_initmsg *sinit;
2836
2837                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2838                         SCTP_INP_RLOCK(inp);
2839                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2840                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2841                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2842                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2843                         SCTP_INP_RUNLOCK(inp);
2844                         *optsize = sizeof(struct sctp_initmsg);
2845                         break;
2846                 }
2847         case SCTP_PRIMARY_ADDR:
2848                 /* we allow a "get" operation on this */
2849                 {
2850                         struct sctp_setprim *ssp;
2851
2852                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2853                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2854
2855                         if (stcb) {
2856                                 union sctp_sockstore *addr;
2857
2858                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2859                                 switch (addr->sa.sa_family) {
2860 #ifdef INET
2861                                 case AF_INET:
2862 #ifdef INET6
2863                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2864                                                 in6_sin_2_v4mapsin6(&addr->sin,
2865                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2866                                         } else {
2867                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2868                                         }
2869 #else
2870                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2871 #endif
2872                                         break;
2873 #endif
2874 #ifdef INET6
2875                                 case AF_INET6:
2876                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2877                                         break;
2878 #endif
2879                                 default:
2880                                         break;
2881                                 }
2882                                 SCTP_TCB_UNLOCK(stcb);
2883                                 *optsize = sizeof(struct sctp_setprim);
2884                         } else {
2885                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2886                                 error = EINVAL;
2887                         }
2888                         break;
2889                 }
2890         case SCTP_HMAC_IDENT:
2891                 {
2892                         struct sctp_hmacalgo *shmac;
2893                         sctp_hmaclist_t *hmaclist;
2894                         uint32_t size;
2895                         int i;
2896
2897                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2898
2899                         SCTP_INP_RLOCK(inp);
2900                         hmaclist = inp->sctp_ep.local_hmacs;
2901                         if (hmaclist == NULL) {
2902                                 /* no HMACs to return */
2903                                 *optsize = sizeof(*shmac);
2904                                 SCTP_INP_RUNLOCK(inp);
2905                                 break;
2906                         }
2907                         /* is there room for all of the hmac ids? */
2908                         size = sizeof(*shmac) + (hmaclist->num_algo *
2909                             sizeof(shmac->shmac_idents[0]));
2910                         if ((size_t)(*optsize) < size) {
2911                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2912                                 error = EINVAL;
2913                                 SCTP_INP_RUNLOCK(inp);
2914                                 break;
2915                         }
2916                         /* copy in the list */
2917                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2918                         for (i = 0; i < hmaclist->num_algo; i++) {
2919                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2920                         }
2921                         SCTP_INP_RUNLOCK(inp);
2922                         *optsize = size;
2923                         break;
2924                 }
2925         case SCTP_AUTH_ACTIVE_KEY:
2926                 {
2927                         struct sctp_authkeyid *scact;
2928
2929                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2930                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2931
2932                         if (stcb) {
2933                                 /* get the active key on the assoc */
2934                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2935                                 SCTP_TCB_UNLOCK(stcb);
2936                         } else {
2937                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2938                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2939                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2940                                         /* get the endpoint active key */
2941                                         SCTP_INP_RLOCK(inp);
2942                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2943                                         SCTP_INP_RUNLOCK(inp);
2944                                 } else {
2945                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2946                                         error = EINVAL;
2947                                 }
2948                         }
2949                         if (error == 0) {
2950                                 *optsize = sizeof(struct sctp_authkeyid);
2951                         }
2952                         break;
2953                 }
2954         case SCTP_LOCAL_AUTH_CHUNKS:
2955                 {
2956                         struct sctp_authchunks *sac;
2957                         sctp_auth_chklist_t *chklist = NULL;
2958                         size_t size = 0;
2959
2960                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2961                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2962
2963                         if (stcb) {
2964                                 /* get off the assoc */
2965                                 chklist = stcb->asoc.local_auth_chunks;
2966                                 /* is there enough space? */
2967                                 size = sctp_auth_get_chklist_size(chklist);
2968                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2969                                         error = EINVAL;
2970                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2971                                 } else {
2972                                         /* copy in the chunks */
2973                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2974                                         sac->gauth_number_of_chunks = (uint32_t) size;
2975                                         *optsize = sizeof(struct sctp_authchunks) + size;
2976                                 }
2977                                 SCTP_TCB_UNLOCK(stcb);
2978                         } else {
2979                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2980                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2981                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2982                                         /* get off the endpoint */
2983                                         SCTP_INP_RLOCK(inp);
2984                                         chklist = inp->sctp_ep.local_auth_chunks;
2985                                         /* is there enough space? */
2986                                         size = sctp_auth_get_chklist_size(chklist);
2987                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2988                                                 error = EINVAL;
2989                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2990                                         } else {
2991                                                 /* copy in the chunks */
2992                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2993                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2994                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2995                                         }
2996                                         SCTP_INP_RUNLOCK(inp);
2997                                 } else {
2998                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2999                                         error = EINVAL;
3000                                 }
3001                         }
3002                         break;
3003                 }
3004         case SCTP_PEER_AUTH_CHUNKS:
3005                 {
3006                         struct sctp_authchunks *sac;
3007                         sctp_auth_chklist_t *chklist = NULL;
3008                         size_t size = 0;
3009
3010                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
3011                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
3012
3013                         if (stcb) {
3014                                 /* get off the assoc */
3015                                 chklist = stcb->asoc.peer_auth_chunks;
3016                                 /* is there enough space? */
3017                                 size = sctp_auth_get_chklist_size(chklist);
3018                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3019                                         error = EINVAL;
3020                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3021                                 } else {
3022                                         /* copy in the chunks */
3023                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3024                                         sac->gauth_number_of_chunks = (uint32_t) size;
3025                                         *optsize = sizeof(struct sctp_authchunks) + size;
3026                                 }
3027                                 SCTP_TCB_UNLOCK(stcb);
3028                         } else {
3029                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3030                                 error = ENOENT;
3031                         }
3032                         break;
3033                 }
3034         case SCTP_EVENT:
3035                 {
3036                         struct sctp_event *event;
3037                         uint32_t event_type;
3038
3039                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3040                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3041
3042                         switch (event->se_type) {
3043                         case SCTP_ASSOC_CHANGE:
3044                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3045                                 break;
3046                         case SCTP_PEER_ADDR_CHANGE:
3047                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3048                                 break;
3049                         case SCTP_REMOTE_ERROR:
3050                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3051                                 break;
3052                         case SCTP_SEND_FAILED:
3053                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3054                                 break;
3055                         case SCTP_SHUTDOWN_EVENT:
3056                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3057                                 break;
3058                         case SCTP_ADAPTATION_INDICATION:
3059                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3060                                 break;
3061                         case SCTP_PARTIAL_DELIVERY_EVENT:
3062                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3063                                 break;
3064                         case SCTP_AUTHENTICATION_EVENT:
3065                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3066                                 break;
3067                         case SCTP_STREAM_RESET_EVENT:
3068                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3069                                 break;
3070                         case SCTP_SENDER_DRY_EVENT:
3071                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3072                                 break;
3073                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3074                                 event_type = 0;
3075                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3076                                 error = ENOTSUP;
3077                                 break;
3078                         case SCTP_ASSOC_RESET_EVENT:
3079                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3080                                 break;
3081                         case SCTP_STREAM_CHANGE_EVENT:
3082                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3083                                 break;
3084                         case SCTP_SEND_FAILED_EVENT:
3085                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3086                                 break;
3087                         default:
3088                                 event_type = 0;
3089                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3090                                 error = EINVAL;
3091                                 break;
3092                         }
3093                         if (event_type > 0) {
3094                                 if (stcb) {
3095                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3096                                         SCTP_TCB_UNLOCK(stcb);
3097                                 } else {
3098                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3099                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3100                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3101                                                 SCTP_INP_RLOCK(inp);
3102                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3103                                                 SCTP_INP_RUNLOCK(inp);
3104                                         } else {
3105                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3106                                                 error = EINVAL;
3107                                         }
3108                                 }
3109                         }
3110                         if (error == 0) {
3111                                 *optsize = sizeof(struct sctp_event);
3112                         }
3113                         break;
3114                 }
3115         case SCTP_RECVRCVINFO:
3116                 {
3117                         int onoff;
3118
3119                         if (*optsize < sizeof(int)) {
3120                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3121                                 error = EINVAL;
3122                         } else {
3123                                 SCTP_INP_RLOCK(inp);
3124                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3125                                 SCTP_INP_RUNLOCK(inp);
3126                         }
3127                         if (error == 0) {
3128                                 /* return the option value */
3129                                 *(int *)optval = onoff;
3130                                 *optsize = sizeof(int);
3131                         }
3132                         break;
3133                 }
3134         case SCTP_RECVNXTINFO:
3135                 {
3136                         int onoff;
3137
3138                         if (*optsize < sizeof(int)) {
3139                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3140                                 error = EINVAL;
3141                         } else {
3142                                 SCTP_INP_RLOCK(inp);
3143                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3144                                 SCTP_INP_RUNLOCK(inp);
3145                         }
3146                         if (error == 0) {
3147                                 /* return the option value */
3148                                 *(int *)optval = onoff;
3149                                 *optsize = sizeof(int);
3150                         }
3151                         break;
3152                 }
3153         case SCTP_DEFAULT_SNDINFO:
3154                 {
3155                         struct sctp_sndinfo *info;
3156
3157                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3158                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3159
3160                         if (stcb) {
3161                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3162                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3163                                 info->snd_flags &= 0xfff0;
3164                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3165                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3166                                 SCTP_TCB_UNLOCK(stcb);
3167                         } else {
3168                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3169                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3170                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3171                                         SCTP_INP_RLOCK(inp);
3172                                         info->snd_sid = inp->def_send.sinfo_stream;
3173                                         info->snd_flags = inp->def_send.sinfo_flags;
3174                                         info->snd_flags &= 0xfff0;
3175                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3176                                         info->snd_context = inp->def_send.sinfo_context;
3177                                         SCTP_INP_RUNLOCK(inp);
3178                                 } else {
3179                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3180                                         error = EINVAL;
3181                                 }
3182                         }
3183                         if (error == 0) {
3184                                 *optsize = sizeof(struct sctp_sndinfo);
3185                         }
3186                         break;
3187                 }
3188         case SCTP_DEFAULT_PRINFO:
3189                 {
3190                         struct sctp_default_prinfo *info;
3191
3192                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3193                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3194
3195                         if (stcb) {
3196                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3197                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3198                                 SCTP_TCB_UNLOCK(stcb);
3199                         } else {
3200                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3201                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3202                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3203                                         SCTP_INP_RLOCK(inp);
3204                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3205                                         info->pr_value = inp->def_send.sinfo_timetolive;
3206                                         SCTP_INP_RUNLOCK(inp);
3207                                 } else {
3208                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3209                                         error = EINVAL;
3210                                 }
3211                         }
3212                         if (error == 0) {
3213                                 *optsize = sizeof(struct sctp_default_prinfo);
3214                         }
3215                         break;
3216                 }
3217         case SCTP_PEER_ADDR_THLDS:
3218                 {
3219                         struct sctp_paddrthlds *thlds;
3220                         struct sctp_nets *net;
3221                         struct sockaddr *addr;
3222
3223 #if defined(INET) && defined(INET6)
3224                         struct sockaddr_in sin_store;
3225
3226 #endif
3227
3228                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3229                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3230
3231 #if defined(INET) && defined(INET6)
3232                         if (thlds->spt_address.ss_family == AF_INET6) {
3233                                 struct sockaddr_in6 *sin6;
3234
3235                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3236                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3237                                         in6_sin6_2_sin(&sin_store, sin6);
3238                                         addr = (struct sockaddr *)&sin_store;
3239                                 } else {
3240                                         addr = (struct sockaddr *)&thlds->spt_address;
3241                                 }
3242                         } else {
3243                                 addr = (struct sockaddr *)&thlds->spt_address;
3244                         }
3245 #else
3246                         addr = (struct sockaddr *)&thlds->spt_address;
3247 #endif
3248                         if (stcb != NULL) {
3249                                 net = sctp_findnet(stcb, addr);
3250                         } else {
3251                                 /*
3252                                  * We increment here since
3253                                  * sctp_findassociation_ep_addr() wil do a
3254                                  * decrement if it finds the stcb as long as
3255                                  * the locked tcb (last argument) is NOT a
3256                                  * TCB.. aka NULL.
3257                                  */
3258                                 net = NULL;
3259                                 SCTP_INP_INCR_REF(inp);
3260                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3261                                 if (stcb == NULL) {
3262                                         SCTP_INP_DECR_REF(inp);
3263                                 }
3264                         }
3265                         if ((stcb != NULL) && (net == NULL)) {
3266 #ifdef INET
3267                                 if (addr->sa_family == AF_INET) {
3268                                         struct sockaddr_in *sin;
3269
3270                                         sin = (struct sockaddr_in *)addr;
3271                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3272                                                 error = EINVAL;
3273                                                 SCTP_TCB_UNLOCK(stcb);
3274                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3275                                                 break;
3276                                         }
3277                                 } else
3278 #endif
3279 #ifdef INET6
3280                                 if (addr->sa_family == AF_INET6) {
3281                                         struct sockaddr_in6 *sin6;
3282
3283                                         sin6 = (struct sockaddr_in6 *)addr;
3284                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3285                                                 error = EINVAL;
3286                                                 SCTP_TCB_UNLOCK(stcb);
3287                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3288                                                 break;
3289                                         }
3290                                 } else
3291 #endif
3292                                 {
3293                                         error = EAFNOSUPPORT;
3294                                         SCTP_TCB_UNLOCK(stcb);
3295                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3296                                         break;
3297                                 }
3298                         }
3299                         if (stcb != NULL) {
3300                                 if (net != NULL) {
3301                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3302                                         thlds->spt_pathpfthld = net->pf_threshold;
3303                                 } else {
3304                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3305                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3306                                 }
3307                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3308                                 SCTP_TCB_UNLOCK(stcb);
3309                         } else {
3310                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3311                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3312                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3313                                         /* Use endpoint defaults */
3314                                         SCTP_INP_RLOCK(inp);
3315                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3316                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3317                                         SCTP_INP_RUNLOCK(inp);
3318                                 } else {
3319                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3320                                         error = EINVAL;
3321                                 }
3322                         }
3323                         if (error == 0) {
3324                                 *optsize = sizeof(struct sctp_paddrthlds);
3325                         }
3326                         break;
3327                 }
3328         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3329                 {
3330                         struct sctp_udpencaps *encaps;
3331                         struct sctp_nets *net;
3332                         struct sockaddr *addr;
3333
3334 #if defined(INET) && defined(INET6)
3335                         struct sockaddr_in sin_store;
3336
3337 #endif
3338
3339                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3340                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3341
3342 #if defined(INET) && defined(INET6)
3343                         if (encaps->sue_address.ss_family == AF_INET6) {
3344                                 struct sockaddr_in6 *sin6;
3345
3346                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3347                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3348                                         in6_sin6_2_sin(&sin_store, sin6);
3349                                         addr = (struct sockaddr *)&sin_store;
3350                                 } else {
3351                                         addr = (struct sockaddr *)&encaps->sue_address;
3352                                 }
3353                         } else {
3354                                 addr = (struct sockaddr *)&encaps->sue_address;
3355                         }
3356 #else
3357                         addr = (struct sockaddr *)&encaps->sue_address;
3358 #endif
3359                         if (stcb) {
3360                                 net = sctp_findnet(stcb, addr);
3361                         } else {
3362                                 /*
3363                                  * We increment here since
3364                                  * sctp_findassociation_ep_addr() wil do a
3365                                  * decrement if it finds the stcb as long as
3366                                  * the locked tcb (last argument) is NOT a
3367                                  * TCB.. aka NULL.
3368                                  */
3369                                 net = NULL;
3370                                 SCTP_INP_INCR_REF(inp);
3371                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3372                                 if (stcb == NULL) {
3373                                         SCTP_INP_DECR_REF(inp);
3374                                 }
3375                         }
3376                         if ((stcb != NULL) && (net == NULL)) {
3377 #ifdef INET
3378                                 if (addr->sa_family == AF_INET) {
3379                                         struct sockaddr_in *sin;
3380
3381                                         sin = (struct sockaddr_in *)addr;
3382                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3383                                                 error = EINVAL;
3384                                                 SCTP_TCB_UNLOCK(stcb);
3385                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3386                                                 break;
3387                                         }
3388                                 } else
3389 #endif
3390 #ifdef INET6
3391                                 if (addr->sa_family == AF_INET6) {
3392                                         struct sockaddr_in6 *sin6;
3393
3394                                         sin6 = (struct sockaddr_in6 *)addr;
3395                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3396                                                 error = EINVAL;
3397                                                 SCTP_TCB_UNLOCK(stcb);
3398                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3399                                                 break;
3400                                         }
3401                                 } else
3402 #endif
3403                                 {
3404                                         error = EAFNOSUPPORT;
3405                                         SCTP_TCB_UNLOCK(stcb);
3406                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3407                                         break;
3408                                 }
3409                         }
3410                         if (stcb != NULL) {
3411                                 if (net) {
3412                                         encaps->sue_port = net->port;
3413                                 } else {
3414                                         encaps->sue_port = stcb->asoc.port;
3415                                 }
3416                                 SCTP_TCB_UNLOCK(stcb);
3417                         } else {
3418                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3419                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3420                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3421                                         SCTP_INP_RLOCK(inp);
3422                                         encaps->sue_port = inp->sctp_ep.port;
3423                                         SCTP_INP_RUNLOCK(inp);
3424                                 } else {
3425                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3426                                         error = EINVAL;
3427                                 }
3428                         }
3429                         if (error == 0) {
3430                                 *optsize = sizeof(struct sctp_udpencaps);
3431                         }
3432                         break;
3433                 }
3434         case SCTP_ECN_SUPPORTED:
3435                 {
3436                         struct sctp_assoc_value *av;
3437
3438                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3439                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3440
3441                         if (stcb) {
3442                                 av->assoc_value = stcb->asoc.ecn_supported;
3443                                 SCTP_TCB_UNLOCK(stcb);
3444                         } else {
3445                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3446                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3447                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3448                                         SCTP_INP_RLOCK(inp);
3449                                         av->assoc_value = inp->ecn_supported;
3450                                         SCTP_INP_RUNLOCK(inp);
3451                                 } else {
3452                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3453                                         error = EINVAL;
3454                                 }
3455                         }
3456                         if (error == 0) {
3457                                 *optsize = sizeof(struct sctp_assoc_value);
3458                         }
3459                         break;
3460                 }
3461         case SCTP_PR_SUPPORTED:
3462                 {
3463                         struct sctp_assoc_value *av;
3464
3465                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3466                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3467
3468                         if (stcb) {
3469                                 av->assoc_value = stcb->asoc.prsctp_supported;
3470                                 SCTP_TCB_UNLOCK(stcb);
3471                         } else {
3472                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3473                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3474                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3475                                         SCTP_INP_RLOCK(inp);
3476                                         av->assoc_value = inp->prsctp_supported;
3477                                         SCTP_INP_RUNLOCK(inp);
3478                                 } else {
3479                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3480                                         error = EINVAL;
3481                                 }
3482                         }
3483                         if (error == 0) {
3484                                 *optsize = sizeof(struct sctp_assoc_value);
3485                         }
3486                         break;
3487                 }
3488         case SCTP_AUTH_SUPPORTED:
3489                 {
3490                         struct sctp_assoc_value *av;
3491
3492                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3493                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3494
3495                         if (stcb) {
3496                                 av->assoc_value = stcb->asoc.auth_supported;
3497                                 SCTP_TCB_UNLOCK(stcb);
3498                         } else {
3499                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3500                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3501                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3502                                         SCTP_INP_RLOCK(inp);
3503                                         av->assoc_value = inp->auth_supported;
3504                                         SCTP_INP_RUNLOCK(inp);
3505                                 } else {
3506                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3507                                         error = EINVAL;
3508                                 }
3509                         }
3510                         if (error == 0) {
3511                                 *optsize = sizeof(struct sctp_assoc_value);
3512                         }
3513                         break;
3514                 }
3515         case SCTP_ASCONF_SUPPORTED:
3516                 {
3517                         struct sctp_assoc_value *av;
3518
3519                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3520                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3521
3522                         if (stcb) {
3523                                 av->assoc_value = stcb->asoc.asconf_supported;
3524                                 SCTP_TCB_UNLOCK(stcb);
3525                         } else {
3526                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3527                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3528                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3529                                         SCTP_INP_RLOCK(inp);
3530                                         av->assoc_value = inp->asconf_supported;
3531                                         SCTP_INP_RUNLOCK(inp);
3532                                 } else {
3533                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3534                                         error = EINVAL;
3535                                 }
3536                         }
3537                         if (error == 0) {
3538                                 *optsize = sizeof(struct sctp_assoc_value);
3539                         }
3540                         break;
3541                 }
3542         case SCTP_RECONFIG_SUPPORTED:
3543                 {
3544                         struct sctp_assoc_value *av;
3545
3546                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3547                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3548
3549                         if (stcb) {
3550                                 av->assoc_value = stcb->asoc.reconfig_supported;
3551                                 SCTP_TCB_UNLOCK(stcb);
3552                         } else {
3553                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3554                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3555                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3556                                         SCTP_INP_RLOCK(inp);
3557                                         av->assoc_value = inp->reconfig_supported;
3558                                         SCTP_INP_RUNLOCK(inp);
3559                                 } else {
3560                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3561                                         error = EINVAL;
3562                                 }
3563                         }
3564                         if (error == 0) {
3565                                 *optsize = sizeof(struct sctp_assoc_value);
3566                         }
3567                         break;
3568                 }
3569         case SCTP_NRSACK_SUPPORTED:
3570                 {
3571                         struct sctp_assoc_value *av;
3572
3573                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3574                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3575
3576                         if (stcb) {
3577                                 av->assoc_value = stcb->asoc.nrsack_supported;
3578                                 SCTP_TCB_UNLOCK(stcb);
3579                         } else {
3580                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3581                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3582                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3583                                         SCTP_INP_RLOCK(inp);
3584                                         av->assoc_value = inp->nrsack_supported;
3585                                         SCTP_INP_RUNLOCK(inp);
3586                                 } else {
3587                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3588                                         error = EINVAL;
3589                                 }
3590                         }
3591                         if (error == 0) {
3592                                 *optsize = sizeof(struct sctp_assoc_value);
3593                         }
3594                         break;
3595                 }
3596         case SCTP_PKTDROP_SUPPORTED:
3597                 {
3598                         struct sctp_assoc_value *av;
3599
3600                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3601                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3602
3603                         if (stcb) {
3604                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3605                                 SCTP_TCB_UNLOCK(stcb);
3606                         } else {
3607                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3608                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3609                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3610                                         SCTP_INP_RLOCK(inp);
3611                                         av->assoc_value = inp->pktdrop_supported;
3612                                         SCTP_INP_RUNLOCK(inp);
3613                                 } else {
3614                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3615                                         error = EINVAL;
3616                                 }
3617                         }
3618                         if (error == 0) {
3619                                 *optsize = sizeof(struct sctp_assoc_value);
3620                         }
3621                         break;
3622                 }
3623         case SCTP_ENABLE_STREAM_RESET:
3624                 {
3625                         struct sctp_assoc_value *av;
3626
3627                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3628                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3629
3630                         if (stcb) {
3631                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3632                                 SCTP_TCB_UNLOCK(stcb);
3633                         } else {
3634                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3635                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3636                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3637                                         SCTP_INP_RLOCK(inp);
3638                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3639                                         SCTP_INP_RUNLOCK(inp);
3640                                 } else {
3641                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3642                                         error = EINVAL;
3643                                 }
3644                         }
3645                         if (error == 0) {
3646                                 *optsize = sizeof(struct sctp_assoc_value);
3647                         }
3648                         break;
3649                 }
3650         case SCTP_PR_STREAM_STATUS:
3651                 {
3652                         struct sctp_prstatus *sprstat;
3653                         uint16_t sid;
3654                         uint16_t policy;
3655
3656                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3657                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3658
3659                         sid = sprstat->sprstat_sid;
3660                         policy = sprstat->sprstat_policy;
3661 #if defined(SCTP_DETAILED_STR_STATS)
3662                         if ((stcb != NULL) &&
3663                             (sid < stcb->asoc.streamoutcnt) &&
3664                             (policy != SCTP_PR_SCTP_NONE) &&
3665                             ((policy <= SCTP_PR_SCTP_MAX) ||
3666                             (policy == SCTP_PR_SCTP_ALL))) {
3667                                 if (policy == SCTP_PR_SCTP_ALL) {
3668                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3669                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3670                                 } else {
3671                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3672                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3673                                 }
3674 #else
3675                         if ((stcb != NULL) &&
3676                             (sid < stcb->asoc.streamoutcnt) &&
3677                             (policy == SCTP_PR_SCTP_ALL)) {
3678                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3679                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3680 #endif
3681                                 SCTP_TCB_UNLOCK(stcb);
3682                                 *optsize = sizeof(struct sctp_prstatus);
3683                         } else {
3684                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3685                                 error = EINVAL;
3686                         }
3687                         break;
3688                 }
3689         case SCTP_PR_ASSOC_STATUS:
3690                 {
3691                         struct sctp_prstatus *sprstat;
3692                         uint16_t policy;
3693
3694                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3695                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3696
3697                         policy = sprstat->sprstat_policy;
3698                         if ((stcb != NULL) &&
3699                             (policy != SCTP_PR_SCTP_NONE) &&
3700                             ((policy <= SCTP_PR_SCTP_MAX) ||
3701                             (policy == SCTP_PR_SCTP_ALL))) {
3702                                 if (policy == SCTP_PR_SCTP_ALL) {
3703                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3704                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3705                                 } else {
3706                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3707                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3708                                 }
3709                                 SCTP_TCB_UNLOCK(stcb);
3710                                 *optsize = sizeof(struct sctp_prstatus);
3711                         } else {
3712                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3713                                 error = EINVAL;
3714                         }
3715                         break;
3716                 }
3717         case SCTP_MAX_CWND:
3718                 {
3719                         struct sctp_assoc_value *av;
3720
3721                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3722                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3723
3724                         if (stcb) {
3725                                 av->assoc_value = stcb->asoc.max_cwnd;
3726                                 SCTP_TCB_UNLOCK(stcb);
3727                         } else {
3728                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3729                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3730                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3731                                         SCTP_INP_RLOCK(inp);
3732                                         av->assoc_value = inp->max_cwnd;
3733                                         SCTP_INP_RUNLOCK(inp);
3734                                 } else {
3735                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3736                                         error = EINVAL;
3737                                 }
3738                         }
3739                         if (error == 0) {
3740                                 *optsize = sizeof(struct sctp_assoc_value);
3741                         }
3742                         break;
3743                 }
3744         default:
3745                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3746                 error = ENOPROTOOPT;
3747                 break;
3748         }                       /* end switch (sopt->sopt_name) */
3749         if (error) {
3750                 *optsize = 0;
3751         }
3752         return (error);
3753 }
3754
3755 static int
3756 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3757     void *p)
3758 {
3759         int error, set_opt;
3760         uint32_t *mopt;
3761         struct sctp_tcb *stcb = NULL;
3762         struct sctp_inpcb *inp = NULL;
3763         uint32_t vrf_id;
3764
3765         if (optval == NULL) {
3766                 SCTP_PRINTF("optval is NULL\n");
3767                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3768                 return (EINVAL);
3769         }
3770         inp = (struct sctp_inpcb *)so->so_pcb;
3771         if (inp == NULL) {
3772                 SCTP_PRINTF("inp is NULL?\n");
3773                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3774                 return (EINVAL);
3775         }
3776         vrf_id = inp->def_vrf_id;
3777
3778         error = 0;
3779         switch (optname) {
3780         case SCTP_NODELAY:
3781         case SCTP_AUTOCLOSE:
3782         case SCTP_AUTO_ASCONF:
3783         case SCTP_EXPLICIT_EOR:
3784         case SCTP_DISABLE_FRAGMENTS:
3785         case SCTP_USE_EXT_RCVINFO:
3786         case SCTP_I_WANT_MAPPED_V4_ADDR:
3787                 /* copy in the option value */
3788                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3789                 set_opt = 0;
3790                 if (error)
3791                         break;
3792                 switch (optname) {
3793                 case SCTP_DISABLE_FRAGMENTS:
3794                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3795                         break;
3796                 case SCTP_AUTO_ASCONF:
3797                         /*
3798                          * NOTE: we don't really support this flag
3799                          */
3800                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3801                                 /* only valid for bound all sockets */
3802                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3803                                     (*mopt != 0)) {
3804                                         /* forbidden by admin */
3805                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3806                                         return (EPERM);
3807                                 }
3808                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3809                         } else {
3810                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3811                                 return (EINVAL);
3812                         }
3813                         break;
3814                 case SCTP_EXPLICIT_EOR:
3815                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3816                         break;
3817                 case SCTP_USE_EXT_RCVINFO:
3818                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3819                         break;
3820                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3821                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3822                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3823                         } else {
3824                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3825                                 return (EINVAL);
3826                         }
3827                         break;
3828                 case SCTP_NODELAY:
3829                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3830                         break;
3831                 case SCTP_AUTOCLOSE:
3832                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3833                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3834                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3835                                 return (EINVAL);
3836                         }
3837                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3838                         /*
3839                          * The value is in ticks. Note this does not effect
3840                          * old associations, only new ones.
3841                          */
3842                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3843                         break;
3844                 }
3845                 SCTP_INP_WLOCK(inp);
3846                 if (*mopt != 0) {
3847                         sctp_feature_on(inp, set_opt);
3848                 } else {
3849                         sctp_feature_off(inp, set_opt);
3850                 }
3851                 SCTP_INP_WUNLOCK(inp);
3852                 break;
3853         case SCTP_REUSE_PORT:
3854                 {
3855                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3856                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3857                                 /* Can't set it after we are bound */
3858                                 error = EINVAL;
3859                                 break;
3860                         }
3861                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3862                                 /* Can't do this for a 1-m socket */
3863                                 error = EINVAL;
3864                                 break;
3865                         }
3866                         if (optval)
3867                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3868                         else
3869                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3870                         break;
3871                 }
3872         case SCTP_PARTIAL_DELIVERY_POINT:
3873                 {
3874                         uint32_t *value;
3875
3876                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3877                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3879                                 error = EINVAL;
3880                                 break;
3881                         }
3882                         inp->partial_delivery_point = *value;
3883                         break;
3884                 }
3885         case SCTP_FRAGMENT_INTERLEAVE:
3886                 /* not yet until we re-write sctp_recvmsg() */
3887                 {
3888                         uint32_t *level;
3889
3890                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3891                         if (*level == SCTP_FRAG_LEVEL_2) {
3892                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3893                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3894                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3895                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3896                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3897                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3898                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3899                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3900
3901                         } else {
3902                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3903                                 error = EINVAL;
3904                         }
3905                         break;
3906                 }
3907         case SCTP_INTERLEAVING_SUPPORTED:
3908                 {
3909                         struct sctp_assoc_value *av;
3910
3911                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3912                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3913
3914                         if (stcb) {
3915                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3916                                 error = EINVAL;
3917                                 SCTP_TCB_UNLOCK(stcb);
3918                         } else {
3919                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3920                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3921                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3922                                         SCTP_INP_WLOCK(inp);
3923                                         if (av->assoc_value == 0) {
3924                                                 inp->idata_supported = 0;
3925                                         } else {
3926                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3927                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3928                                                         inp->idata_supported = 1;
3929                                                 } else {
3930                                                         /*
3931                                                          * Must have Frag
3932                                                          * interleave and
3933                                                          * stream interleave
3934                                                          * on
3935                                                          */
3936                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3937                                                         error = EINVAL;
3938                                                 }
3939                                         }
3940                                         SCTP_INP_WUNLOCK(inp);
3941                                 } else {
3942                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3943                                         error = EINVAL;
3944                                 }
3945                         }
3946                         break;
3947                 }
3948         case SCTP_CMT_ON_OFF:
3949                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3950                         struct sctp_assoc_value *av;
3951
3952                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3953                         if (av->assoc_value > SCTP_CMT_MAX) {
3954                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3955                                 error = EINVAL;
3956                                 break;
3957                         }
3958                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3959                         if (stcb) {
3960                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3961                                 SCTP_TCB_UNLOCK(stcb);
3962                         } else {
3963                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3964                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3965                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3966                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3967                                         SCTP_INP_WLOCK(inp);
3968                                         inp->sctp_cmt_on_off = av->assoc_value;
3969                                         SCTP_INP_WUNLOCK(inp);
3970                                 }
3971                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3972                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3973                                         SCTP_INP_RLOCK(inp);
3974                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3975                                                 SCTP_TCB_LOCK(stcb);
3976                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3977                                                 SCTP_TCB_UNLOCK(stcb);
3978                                         }
3979                                         SCTP_INP_RUNLOCK(inp);
3980                                 }
3981                         }
3982                 } else {
3983                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3984                         error = ENOPROTOOPT;
3985                 }
3986                 break;
3987         case SCTP_PLUGGABLE_CC:
3988                 {
3989                         struct sctp_assoc_value *av;
3990                         struct sctp_nets *net;
3991
3992                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3993                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3994                             (av->assoc_value != SCTP_CC_HSTCP) &&
3995                             (av->assoc_value != SCTP_CC_HTCP) &&
3996                             (av->assoc_value != SCTP_CC_RTCC)) {
3997                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3998                                 error = EINVAL;
3999                                 break;
4000                         }
4001                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4002                         if (stcb) {
4003                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4004                                 stcb->asoc.congestion_control_module = av->assoc_value;
4005                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4006                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4007                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4008                                         }
4009                                 }
4010                                 SCTP_TCB_UNLOCK(stcb);
4011                         } else {
4012                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4013                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4014                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4015                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4016                                         SCTP_INP_WLOCK(inp);
4017                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4018                                         SCTP_INP_WUNLOCK(inp);
4019                                 }
4020                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4021                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4022                                         SCTP_INP_RLOCK(inp);
4023                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4024                                                 SCTP_TCB_LOCK(stcb);
4025                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4026                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4027                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4028                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4029                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4030                                                         }
4031                                                 }
4032                                                 SCTP_TCB_UNLOCK(stcb);
4033                                         }
4034                                         SCTP_INP_RUNLOCK(inp);
4035                                 }
4036                         }
4037                         break;
4038                 }
4039         case SCTP_CC_OPTION:
4040                 {
4041                         struct sctp_cc_option *cc_opt;
4042
4043                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4044                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4045                         if (stcb == NULL) {
4046                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4047                                         SCTP_INP_RLOCK(inp);
4048                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4049                                                 SCTP_TCB_LOCK(stcb);
4050                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4051                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4052                                                 }
4053                                                 SCTP_TCB_UNLOCK(stcb);
4054                                         }
4055                                         SCTP_INP_RUNLOCK(inp);
4056                                 } else {
4057                                         error = EINVAL;
4058                                 }
4059                         } else {
4060                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4061                                         error = ENOTSUP;
4062                                 } else {
4063                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4064                                             cc_opt);
4065                                 }
4066                                 SCTP_TCB_UNLOCK(stcb);
4067                         }
4068                         break;
4069                 }
4070         case SCTP_PLUGGABLE_SS:
4071                 {
4072                         struct sctp_assoc_value *av;
4073
4074                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4075                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4076                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4077                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4078                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4079                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4080                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4081                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4082                                 error = EINVAL;
4083                                 break;
4084                         }
4085                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4086                         if (stcb) {
4087                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4088                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4089                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4090                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4091                                 SCTP_TCB_UNLOCK(stcb);
4092                         } else {
4093                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4094                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4095                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4096                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4097                                         SCTP_INP_WLOCK(inp);
4098                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4099                                         SCTP_INP_WUNLOCK(inp);
4100                                 }
4101                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4102                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4103                                         SCTP_INP_RLOCK(inp);
4104                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4105                                                 SCTP_TCB_LOCK(stcb);
4106                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4107                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4108                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4109                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4110                                                 SCTP_TCB_UNLOCK(stcb);
4111                                         }
4112                                         SCTP_INP_RUNLOCK(inp);
4113                                 }
4114                         }
4115                         break;
4116                 }
4117         case SCTP_SS_VALUE:
4118                 {
4119                         struct sctp_stream_value *av;
4120
4121                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4122                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4123                         if (stcb) {
4124                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4125                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4126                                     av->stream_value) < 0)) {
4127                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4128                                         error = EINVAL;
4129                                 }
4130                                 SCTP_TCB_UNLOCK(stcb);
4131                         } else {
4132                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4133                                         SCTP_INP_RLOCK(inp);
4134                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4135                                                 SCTP_TCB_LOCK(stcb);
4136                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4137                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4138                                                             &stcb->asoc,
4139                                                             &stcb->asoc.strmout[av->stream_id],
4140                                                             av->stream_value);
4141                                                 }
4142                                                 SCTP_TCB_UNLOCK(stcb);
4143                                         }
4144                                         SCTP_INP_RUNLOCK(inp);
4145                                 } else {
4146                                         /*
4147                                          * Can't set stream value without
4148                                          * association
4149                                          */
4150                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4151                                         error = EINVAL;
4152                                 }
4153                         }
4154                         break;
4155                 }
4156         case SCTP_CLR_STAT_LOG:
4157                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4158                 error = EOPNOTSUPP;
4159                 break;
4160         case SCTP_CONTEXT:
4161                 {
4162                         struct sctp_assoc_value *av;
4163
4164                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4165                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4166
4167                         if (stcb) {
4168                                 stcb->asoc.context = av->assoc_value;
4169                                 SCTP_TCB_UNLOCK(stcb);
4170                         } else {
4171                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4172                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4173                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4174                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4175                                         SCTP_INP_WLOCK(inp);
4176                                         inp->sctp_context = av->assoc_value;
4177                                         SCTP_INP_WUNLOCK(inp);
4178                                 }
4179                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4180                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4181                                         SCTP_INP_RLOCK(inp);
4182                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4183                                                 SCTP_TCB_LOCK(stcb);
4184                                                 stcb->asoc.context = av->assoc_value;
4185                                                 SCTP_TCB_UNLOCK(stcb);
4186                                         }
4187                                         SCTP_INP_RUNLOCK(inp);
4188                                 }
4189                         }
4190                         break;
4191                 }
4192         case SCTP_VRF_ID:
4193                 {
4194                         uint32_t *default_vrfid;
4195
4196                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4197                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4198                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4199                                 error = EINVAL;
4200                                 break;
4201                         }
4202                         inp->def_vrf_id = *default_vrfid;
4203                         break;
4204                 }
4205         case SCTP_DEL_VRF_ID:
4206                 {
4207                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4208                         error = EOPNOTSUPP;
4209                         break;
4210                 }
4211         case SCTP_ADD_VRF_ID:
4212                 {
4213                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4214                         error = EOPNOTSUPP;
4215                         break;
4216                 }
4217         case SCTP_DELAYED_SACK:
4218                 {
4219                         struct sctp_sack_info *sack;
4220
4221                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4222                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4223                         if (sack->sack_delay) {
4224                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4225                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4226                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4227                                         sack->sack_delay = TICKS_TO_MSEC(1);
4228                                 }
4229                         }
4230                         if (stcb) {
4231                                 if (sack->sack_delay) {
4232                                         stcb->asoc.delayed_ack = sack->sack_delay;
4233                                 }
4234                                 if (sack->sack_freq) {
4235                                         stcb->asoc.sack_freq = sack->sack_freq;
4236                                 }
4237                                 SCTP_TCB_UNLOCK(stcb);
4238                         } else {
4239                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4240                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4241                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4242                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4243                                         SCTP_INP_WLOCK(inp);
4244                                         if (sack->sack_delay) {
4245                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4246                                         }
4247                                         if (sack->sack_freq) {
4248                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4249                                         }
4250                                         SCTP_INP_WUNLOCK(inp);
4251                                 }
4252                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4253                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4254                                         SCTP_INP_RLOCK(inp);
4255                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4256                                                 SCTP_TCB_LOCK(stcb);
4257                                                 if (sack->sack_delay) {
4258                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4259                                                 }
4260                                                 if (sack->sack_freq) {
4261                                                         stcb->asoc.sack_freq = sack->sack_freq;
4262                                                 }
4263                                                 SCTP_TCB_UNLOCK(stcb);
4264                                         }
4265                                         SCTP_INP_RUNLOCK(inp);
4266                                 }
4267                         }
4268                         break;
4269                 }
4270         case SCTP_AUTH_CHUNK:
4271                 {
4272                         struct sctp_authchunk *sauth;
4273
4274                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4275
4276                         SCTP_INP_WLOCK(inp);
4277                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4278                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4279                                 error = EINVAL;
4280                         }
4281                         SCTP_INP_WUNLOCK(inp);
4282                         break;
4283                 }
4284         case SCTP_AUTH_KEY:
4285                 {
4286                         struct sctp_authkey *sca;
4287                         struct sctp_keyhead *shared_keys;
4288                         sctp_sharedkey_t *shared_key;
4289                         sctp_key_t *key = NULL;
4290                         size_t size;
4291
4292                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4293                         if (sca->sca_keylength == 0) {
4294                                 size = optsize - sizeof(struct sctp_authkey);
4295                         } else {
4296                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4297                                         size = sca->sca_keylength;
4298                                 } else {
4299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4300                                         error = EINVAL;
4301                                         break;
4302                                 }
4303                         }
4304                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4305
4306                         if (stcb) {
4307                                 shared_keys = &stcb->asoc.shared_keys;
4308                                 /* clear the cached keys for this key id */
4309                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4310                                 /*
4311                                  * create the new shared key and
4312                                  * insert/replace it
4313                                  */
4314                                 if (size > 0) {
4315                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4316                                         if (key == NULL) {
4317                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4318                                                 error = ENOMEM;
4319                                                 SCTP_TCB_UNLOCK(stcb);
4320                                                 break;
4321                                         }
4322                                 }
4323                                 shared_key = sctp_alloc_sharedkey();
4324                                 if (shared_key == NULL) {
4325                                         sctp_free_key(key);
4326                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4327                                         error = ENOMEM;
4328                                         SCTP_TCB_UNLOCK(stcb);
4329                                         break;
4330                                 }
4331                                 shared_key->key = key;
4332                                 shared_key->keyid = sca->sca_keynumber;
4333                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4334                                 SCTP_TCB_UNLOCK(stcb);
4335                         } else {
4336                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4337                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4338                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4339                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4340                                         SCTP_INP_WLOCK(inp);
4341                                         shared_keys = &inp->sctp_ep.shared_keys;
4342                                         /*
4343                                          * clear the cached keys on all
4344                                          * assocs for this key id
4345                                          */
4346                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4347                                         /*
4348                                          * create the new shared key and
4349                                          * insert/replace it
4350                                          */
4351                                         if (size > 0) {
4352                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4353                                                 if (key == NULL) {
4354                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4355                                                         error = ENOMEM;
4356                                                         SCTP_INP_WUNLOCK(inp);
4357                                                         break;
4358                                                 }
4359                                         }
4360                                         shared_key = sctp_alloc_sharedkey();
4361                                         if (shared_key == NULL) {
4362                                                 sctp_free_key(key);
4363                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4364                                                 error = ENOMEM;
4365                                                 SCTP_INP_WUNLOCK(inp);
4366                                                 break;
4367                                         }
4368                                         shared_key->key = key;
4369                                         shared_key->keyid = sca->sca_keynumber;
4370                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4371                                         SCTP_INP_WUNLOCK(inp);
4372                                 }
4373                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4374                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4375                                         SCTP_INP_RLOCK(inp);
4376                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4377                                                 SCTP_TCB_LOCK(stcb);
4378                                                 shared_keys = &stcb->asoc.shared_keys;
4379                                                 /*
4380                                                  * clear the cached keys for
4381                                                  * this key id
4382                                                  */
4383                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4384                                                 /*
4385                                                  * create the new shared key
4386                                                  * and insert/replace it
4387                                                  */
4388                                                 if (size > 0) {
4389                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4390                                                         if (key == NULL) {
4391                                                                 SCTP_TCB_UNLOCK(stcb);
4392                                                                 continue;
4393                                                         }
4394                                                 }
4395                                                 shared_key = sctp_alloc_sharedkey();
4396                                                 if (shared_key == NULL) {
4397                                                         sctp_free_key(key);
4398                                                         SCTP_TCB_UNLOCK(stcb);
4399                                                         continue;
4400                                                 }
4401                                                 shared_key->key = key;
4402                                                 shared_key->keyid = sca->sca_keynumber;
4403                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4404                                                 SCTP_TCB_UNLOCK(stcb);
4405                                         }
4406                                         SCTP_INP_RUNLOCK(inp);
4407                                 }
4408                         }
4409                         break;
4410                 }
4411         case SCTP_HMAC_IDENT:
4412                 {
4413                         struct sctp_hmacalgo *shmac;
4414                         sctp_hmaclist_t *hmaclist;
4415                         uint16_t hmacid;
4416                         uint32_t i;
4417
4418                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4419                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4420                             (shmac->shmac_number_of_idents > 0xffff)) {
4421                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4422                                 error = EINVAL;
4423                                 break;
4424                         }
4425                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4426                         if (hmaclist == NULL) {
4427                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4428                                 error = ENOMEM;
4429                                 break;
4430                         }
4431                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4432                                 hmacid = shmac->shmac_idents[i];
4433                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4434                                          /* invalid HMACs were found */ ;
4435                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4436                                         error = EINVAL;
4437                                         sctp_free_hmaclist(hmaclist);
4438                                         goto sctp_set_hmac_done;
4439                                 }
4440                         }
4441                         for (i = 0; i < hmaclist->num_algo; i++) {
4442                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4443                                         /* already in list */
4444                                         break;
4445                                 }
4446                         }
4447                         if (i == hmaclist->num_algo) {
4448                                 /* not found in list */
4449                                 sctp_free_hmaclist(hmaclist);
4450                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4451                                 error = EINVAL;
4452                                 break;
4453                         }
4454                         /* set it on the endpoint */
4455                         SCTP_INP_WLOCK(inp);
4456                         if (inp->sctp_ep.local_hmacs)
4457                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4458                         inp->sctp_ep.local_hmacs = hmaclist;
4459                         SCTP_INP_WUNLOCK(inp);
4460         sctp_set_hmac_done:
4461                         break;
4462                 }
4463         case SCTP_AUTH_ACTIVE_KEY:
4464                 {
4465                         struct sctp_authkeyid *scact;
4466
4467                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4468                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4469
4470                         /* set the active key on the right place */
4471                         if (stcb) {
4472                                 /* set the active key on the assoc */
4473                                 if (sctp_auth_setactivekey(stcb,
4474                                     scact->scact_keynumber)) {
4475                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4476                                             SCTP_FROM_SCTP_USRREQ,
4477                                             EINVAL);
4478                                         error = EINVAL;
4479                                 }
4480                                 SCTP_TCB_UNLOCK(stcb);
4481                         } else {
4482                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4483                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4484                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4485                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4486                                         SCTP_INP_WLOCK(inp);
4487                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4488                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4489                                                 error = EINVAL;
4490                                         }
4491                                         SCTP_INP_WUNLOCK(inp);
4492                                 }
4493                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4494                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4495                                         SCTP_INP_RLOCK(inp);
4496                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4497                                                 SCTP_TCB_LOCK(stcb);
4498                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4499                                                 SCTP_TCB_UNLOCK(stcb);
4500                                         }
4501                                         SCTP_INP_RUNLOCK(inp);
4502                                 }
4503                         }
4504                         break;
4505                 }
4506         case SCTP_AUTH_DELETE_KEY:
4507                 {
4508                         struct sctp_authkeyid *scdel;
4509
4510                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4511                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4512
4513                         /* delete the key from the right place */
4514                         if (stcb) {
4515                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4516                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4517                                         error = EINVAL;
4518                                 }
4519                                 SCTP_TCB_UNLOCK(stcb);
4520                         } else {
4521                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4522                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4523                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4524                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4525                                         SCTP_INP_WLOCK(inp);
4526                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4527                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4528                                                 error = EINVAL;
4529                                         }
4530                                         SCTP_INP_WUNLOCK(inp);
4531                                 }
4532                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4533                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4534                                         SCTP_INP_RLOCK(inp);
4535                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4536                                                 SCTP_TCB_LOCK(stcb);
4537                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4538                                                 SCTP_TCB_UNLOCK(stcb);
4539                                         }
4540                                         SCTP_INP_RUNLOCK(inp);
4541                                 }
4542                         }
4543                         break;
4544                 }
4545         case SCTP_AUTH_DEACTIVATE_KEY:
4546                 {
4547                         struct sctp_authkeyid *keyid;
4548
4549                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4550                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4551
4552                         /* deactivate the key from the right place */
4553                         if (stcb) {
4554                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4555                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4556                                         error = EINVAL;
4557                                 }
4558                                 SCTP_TCB_UNLOCK(stcb);
4559                         } else {
4560                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4561                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4562                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4563                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4564                                         SCTP_INP_WLOCK(inp);
4565                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4566                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4567                                                 error = EINVAL;
4568                                         }
4569                                         SCTP_INP_WUNLOCK(inp);
4570                                 }
4571                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4572                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4573                                         SCTP_INP_RLOCK(inp);
4574                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4575                                                 SCTP_TCB_LOCK(stcb);
4576                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4577                                                 SCTP_TCB_UNLOCK(stcb);
4578                                         }
4579                                         SCTP_INP_RUNLOCK(inp);
4580                                 }
4581                         }
4582                         break;
4583                 }
4584         case SCTP_ENABLE_STREAM_RESET:
4585                 {
4586                         struct sctp_assoc_value *av;
4587
4588                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4589                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4590                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4591                                 error = EINVAL;
4592                                 break;
4593                         }
4594                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4595                         if (stcb) {
4596                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4597                                 SCTP_TCB_UNLOCK(stcb);
4598                         } else {
4599                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4600                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4601                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4602                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4603                                         SCTP_INP_WLOCK(inp);
4604                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4605                                         SCTP_INP_WUNLOCK(inp);
4606                                 }
4607                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4608                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4609                                         SCTP_INP_RLOCK(inp);
4610                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4611                                                 SCTP_TCB_LOCK(stcb);
4612                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4613                                                 SCTP_TCB_UNLOCK(stcb);
4614                                         }
4615                                         SCTP_INP_RUNLOCK(inp);
4616                                 }
4617                         }
4618                         break;
4619                 }
4620         case SCTP_RESET_STREAMS:
4621                 {
4622                         struct sctp_reset_streams *strrst;
4623                         int i, send_out = 0;
4624                         int send_in = 0;
4625
4626                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4627                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4628                         if (stcb == NULL) {
4629                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4630                                 error = ENOENT;
4631                                 break;
4632                         }
4633                         if (stcb->asoc.reconfig_supported == 0) {
4634                                 /*
4635                                  * Peer does not support the chunk type.
4636                                  */
4637                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4638                                 error = EOPNOTSUPP;
4639                                 SCTP_TCB_UNLOCK(stcb);
4640                                 break;
4641                         }
4642                         if (sizeof(struct sctp_reset_streams) +
4643                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4644                                 error = EINVAL;
4645                                 SCTP_TCB_UNLOCK(stcb);
4646                                 break;
4647                         }
4648                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4649                                 send_in = 1;
4650                                 if (stcb->asoc.stream_reset_outstanding) {
4651                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4652                                         error = EALREADY;
4653                                         SCTP_TCB_UNLOCK(stcb);
4654                                         break;
4655                                 }
4656                         }
4657                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4658                                 send_out = 1;
4659                         }
4660                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4661                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4662                                 error = ENOMEM;
4663                                 SCTP_TCB_UNLOCK(stcb);
4664                                 break;
4665                         }
4666                         if ((send_in == 0) && (send_out == 0)) {
4667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4668                                 error = EINVAL;
4669                                 SCTP_TCB_UNLOCK(stcb);
4670                                 break;
4671                         }
4672                         for (i = 0; i < strrst->srs_number_streams; i++) {
4673                                 if ((send_in) &&
4674                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4675                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4676                                         error = EINVAL;
4677                                         break;
4678                                 }
4679                                 if ((send_out) &&
4680                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4681                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4682                                         error = EINVAL;
4683                                         break;
4684                                 }
4685                         }
4686                         if (error) {
4687                                 SCTP_TCB_UNLOCK(stcb);
4688                                 break;
4689                         }
4690                         if (send_out) {
4691                                 int cnt;
4692                                 uint16_t strm;
4693
4694                                 if (strrst->srs_number_streams) {
4695                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4696                                                 strm = strrst->srs_stream_list[i];
4697                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4698                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4699                                                         cnt++;
4700                                                 }
4701                                         }
4702                                 } else {
4703                                         /* Its all */
4704                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4705                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4706                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4707                                                         cnt++;
4708                                                 }
4709                                         }
4710                                 }
4711                         }
4712                         if (send_in) {
4713                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4714                                     strrst->srs_stream_list,
4715                                     send_in, 0, 0, 0, 0, 0);
4716                         } else {
4717                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4718                         }
4719                         if (error == 0) {
4720                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4721                         } else {
4722                                 /*
4723                                  * For outgoing streams don't report any
4724                                  * problems in sending the request to the
4725                                  * application. XXX: Double check resetting
4726                                  * incoming streams.
4727                                  */
4728                                 error = 0;
4729                         }
4730                         SCTP_TCB_UNLOCK(stcb);
4731                         break;
4732                 }
4733         case SCTP_ADD_STREAMS:
4734                 {
4735                         struct sctp_add_streams *stradd;
4736                         uint8_t addstream = 0;
4737                         uint16_t add_o_strmcnt = 0;
4738                         uint16_t add_i_strmcnt = 0;
4739
4740                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4741                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4742                         if (stcb == NULL) {
4743                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4744                                 error = ENOENT;
4745                                 break;
4746                         }
4747                         if (stcb->asoc.reconfig_supported == 0) {
4748                                 /*
4749                                  * Peer does not support the chunk type.
4750                                  */
4751                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4752                                 error = EOPNOTSUPP;
4753                                 SCTP_TCB_UNLOCK(stcb);
4754                                 break;
4755                         }
4756                         if (stcb->asoc.stream_reset_outstanding) {
4757                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4758                                 error = EALREADY;
4759                                 SCTP_TCB_UNLOCK(stcb);
4760                                 break;
4761                         }
4762                         if ((stradd->sas_outstrms == 0) &&
4763                             (stradd->sas_instrms == 0)) {
4764                                 error = EINVAL;
4765                                 goto skip_stuff;
4766                         }
4767                         if (stradd->sas_outstrms) {
4768                                 addstream = 1;
4769                                 /* We allocate here */
4770                                 add_o_strmcnt = stradd->sas_outstrms;
4771                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4772                                         /* You can't have more than 64k */
4773                                         error = EINVAL;
4774                                         goto skip_stuff;
4775                                 }
4776                         }
4777                         if (stradd->sas_instrms) {
4778                                 int cnt;
4779
4780                                 addstream |= 2;
4781                                 /*
4782                                  * We allocate inside
4783                                  * sctp_send_str_reset_req()
4784                                  */
4785                                 add_i_strmcnt = stradd->sas_instrms;
4786                                 cnt = add_i_strmcnt;
4787                                 cnt += stcb->asoc.streamincnt;
4788                                 if (cnt > 0x0000ffff) {
4789                                         /* You can't have more than 64k */
4790                                         error = EINVAL;
4791                                         goto skip_stuff;
4792                                 }
4793                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4794                                         /* More than you are allowed */
4795                                         error = EINVAL;
4796                                         goto skip_stuff;
4797                                 }
4798                         }
4799                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4800                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4801         skip_stuff:
4802                         SCTP_TCB_UNLOCK(stcb);
4803                         break;
4804                 }
4805         case SCTP_RESET_ASSOC:
4806                 {
4807                         int i;
4808                         uint32_t *value;
4809
4810                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4811                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4812                         if (stcb == NULL) {
4813                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4814                                 error = ENOENT;
4815                                 break;
4816                         }
4817                         if (stcb->asoc.reconfig_supported == 0) {
4818                                 /*
4819                                  * Peer does not support the chunk type.
4820                                  */
4821                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4822                                 error = EOPNOTSUPP;
4823                                 SCTP_TCB_UNLOCK(stcb);
4824                                 break;
4825                         }
4826                         if (stcb->asoc.stream_reset_outstanding) {
4827                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4828                                 error = EALREADY;
4829                                 SCTP_TCB_UNLOCK(stcb);
4830                                 break;
4831                         }
4832                         /*
4833                          * Is there any data pending in the send or sent
4834                          * queues?
4835                          */
4836                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4837                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4838                 busy_out:
4839                                 error = EBUSY;
4840                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4841                                 SCTP_TCB_UNLOCK(stcb);
4842                                 break;
4843                         }
4844                         /* Do any streams have data queued? */
4845                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4846                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4847                                         goto busy_out;
4848                                 }
4849                         }
4850                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4851                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4852                         SCTP_TCB_UNLOCK(stcb);
4853                         break;
4854                 }
4855         case SCTP_CONNECT_X:
4856                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4857                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4858                         error = EINVAL;
4859                         break;
4860                 }
4861                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4862                 break;
4863         case SCTP_CONNECT_X_DELAYED:
4864                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4865                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4866                         error = EINVAL;
4867                         break;
4868                 }
4869                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4870                 break;
4871         case SCTP_CONNECT_X_COMPLETE:
4872                 {
4873                         struct sockaddr *sa;
4874
4875                         /* FIXME MT: check correct? */
4876                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4877
4878                         /* find tcb */
4879                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4880                                 SCTP_INP_RLOCK(inp);
4881                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4882                                 if (stcb) {
4883                                         SCTP_TCB_LOCK(stcb);
4884                                 }
4885                                 SCTP_INP_RUNLOCK(inp);
4886                         } else {
4887                                 /*
4888                                  * We increment here since
4889                                  * sctp_findassociation_ep_addr() wil do a
4890                                  * decrement if it finds the stcb as long as
4891                                  * the locked tcb (last argument) is NOT a
4892                                  * TCB.. aka NULL.
4893                                  */
4894                                 SCTP_INP_INCR_REF(inp);
4895                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4896                                 if (stcb == NULL) {
4897                                         SCTP_INP_DECR_REF(inp);
4898                                 }
4899                         }
4900
4901                         if (stcb == NULL) {
4902                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4903                                 error = ENOENT;
4904                                 break;
4905                         }
4906                         if (stcb->asoc.delayed_connection == 1) {
4907                                 stcb->asoc.delayed_connection = 0;
4908                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4909                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4910                                     stcb->asoc.primary_destination,
4911                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4912                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4913                         } else {
4914                                 /*
4915                                  * already expired or did not use delayed
4916                                  * connectx
4917                                  */
4918                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4919                                 error = EALREADY;
4920                         }
4921                         SCTP_TCB_UNLOCK(stcb);
4922                         break;
4923                 }
4924         case SCTP_MAX_BURST:
4925                 {
4926                         struct sctp_assoc_value *av;
4927
4928                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4929                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4930
4931                         if (stcb) {
4932                                 stcb->asoc.max_burst = av->assoc_value;
4933                                 SCTP_TCB_UNLOCK(stcb);
4934                         } else {
4935                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4936                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4937                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4938                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4939                                         SCTP_INP_WLOCK(inp);
4940                                         inp->sctp_ep.max_burst = av->assoc_value;
4941                                         SCTP_INP_WUNLOCK(inp);
4942                                 }
4943                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4944                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4945                                         SCTP_INP_RLOCK(inp);
4946                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4947                                                 SCTP_TCB_LOCK(stcb);
4948                                                 stcb->asoc.max_burst = av->assoc_value;
4949                                                 SCTP_TCB_UNLOCK(stcb);
4950                                         }
4951                                         SCTP_INP_RUNLOCK(inp);
4952                                 }
4953                         }
4954                         break;
4955                 }
4956         case SCTP_MAXSEG:
4957                 {
4958                         struct sctp_assoc_value *av;
4959                         int ovh;
4960
4961                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4962                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4963
4964                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4965                                 ovh = SCTP_MED_OVERHEAD;
4966                         } else {
4967                                 ovh = SCTP_MED_V4_OVERHEAD;
4968                         }
4969                         if (stcb) {
4970                                 if (av->assoc_value) {
4971                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4972                                 } else {
4973                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4974                                 }
4975                                 SCTP_TCB_UNLOCK(stcb);
4976                         } else {
4977                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4978                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4979                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4980                                         SCTP_INP_WLOCK(inp);
4981                                         /*
4982                                          * FIXME MT: I think this is not in
4983                                          * tune with the API ID
4984                                          */
4985                                         if (av->assoc_value) {
4986                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4987                                         } else {
4988                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4989                                         }
4990                                         SCTP_INP_WUNLOCK(inp);
4991                                 } else {
4992                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4993                                         error = EINVAL;
4994                                 }
4995                         }
4996                         break;
4997                 }
4998         case SCTP_EVENTS:
4999                 {
5000                         struct sctp_event_subscribe *events;
5001
5002                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5003
5004                         SCTP_INP_WLOCK(inp);
5005                         if (events->sctp_data_io_event) {
5006                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5007                         } else {
5008                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5009                         }
5010
5011                         if (events->sctp_association_event) {
5012                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5013                         } else {
5014                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5015                         }
5016
5017                         if (events->sctp_address_event) {
5018                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5019                         } else {
5020                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5021                         }
5022
5023                         if (events->sctp_send_failure_event) {
5024                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5025                         } else {
5026                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5027                         }
5028
5029                         if (events->sctp_peer_error_event) {
5030                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5031                         } else {
5032                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5033                         }
5034
5035                         if (events->sctp_shutdown_event) {
5036                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5037                         } else {
5038                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5039                         }
5040
5041                         if (events->sctp_partial_delivery_event) {
5042                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5043                         } else {
5044                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5045                         }
5046
5047                         if (events->sctp_adaptation_layer_event) {
5048                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5049                         } else {
5050                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5051                         }
5052
5053                         if (events->sctp_authentication_event) {
5054                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5055                         } else {
5056                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5057                         }
5058
5059                         if (events->sctp_sender_dry_event) {
5060                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5061                         } else {
5062                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5063                         }
5064
5065                         if (events->sctp_stream_reset_event) {
5066                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5067                         } else {
5068                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5069                         }
5070                         SCTP_INP_WUNLOCK(inp);
5071
5072                         SCTP_INP_RLOCK(inp);
5073                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5074                                 SCTP_TCB_LOCK(stcb);
5075                                 if (events->sctp_association_event) {
5076                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5077                                 } else {
5078                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5079                                 }
5080                                 if (events->sctp_address_event) {
5081                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5082                                 } else {
5083                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5084                                 }
5085                                 if (events->sctp_send_failure_event) {
5086                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5087                                 } else {
5088                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5089                                 }
5090                                 if (events->sctp_peer_error_event) {
5091                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5092                                 } else {
5093                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5094                                 }
5095                                 if (events->sctp_shutdown_event) {
5096                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5097                                 } else {
5098                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5099                                 }
5100                                 if (events->sctp_partial_delivery_event) {
5101                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5102                                 } else {
5103                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5104                                 }
5105                                 if (events->sctp_adaptation_layer_event) {
5106                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5107                                 } else {
5108                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5109                                 }
5110                                 if (events->sctp_authentication_event) {
5111                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5112                                 } else {
5113                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5114                                 }
5115                                 if (events->sctp_sender_dry_event) {
5116                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5117                                 } else {
5118                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5119                                 }
5120                                 if (events->sctp_stream_reset_event) {
5121                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5122                                 } else {
5123                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5124                                 }
5125                                 SCTP_TCB_UNLOCK(stcb);
5126                         }
5127                         /*
5128                          * Send up the sender dry event only for 1-to-1
5129                          * style sockets.
5130                          */
5131                         if (events->sctp_sender_dry_event) {
5132                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5133                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5134                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5135                                         if (stcb) {
5136                                                 SCTP_TCB_LOCK(stcb);
5137                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5138                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5139                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5140                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5141                                                 }
5142                                                 SCTP_TCB_UNLOCK(stcb);
5143                                         }
5144                                 }
5145                         }
5146                         SCTP_INP_RUNLOCK(inp);
5147                         break;
5148                 }
5149         case SCTP_ADAPTATION_LAYER:
5150                 {
5151                         struct sctp_setadaptation *adap_bits;
5152
5153                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5154                         SCTP_INP_WLOCK(inp);
5155                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5156                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5157                         SCTP_INP_WUNLOCK(inp);
5158                         break;
5159                 }
5160 #ifdef SCTP_DEBUG
5161         case SCTP_SET_INITIAL_DBG_SEQ:
5162                 {
5163                         uint32_t *vvv;
5164
5165                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5166                         SCTP_INP_WLOCK(inp);
5167                         inp->sctp_ep.initial_sequence_debug = *vvv;
5168                         SCTP_INP_WUNLOCK(inp);
5169                         break;
5170                 }
5171 #endif
5172         case SCTP_DEFAULT_SEND_PARAM:
5173                 {
5174                         struct sctp_sndrcvinfo *s_info;
5175
5176                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5177                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5178
5179                         if (stcb) {
5180                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5181                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5182                                 } else {
5183                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5184                                         error = EINVAL;
5185                                 }
5186                                 SCTP_TCB_UNLOCK(stcb);
5187                         } else {
5188                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5189                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5190                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5191                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5192                                         SCTP_INP_WLOCK(inp);
5193                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5194                                         SCTP_INP_WUNLOCK(inp);
5195                                 }
5196                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5197                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5198                                         SCTP_INP_RLOCK(inp);
5199                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5200                                                 SCTP_TCB_LOCK(stcb);
5201                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5202                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5203                                                 }
5204                                                 SCTP_TCB_UNLOCK(stcb);
5205                                         }
5206                                         SCTP_INP_RUNLOCK(inp);
5207                                 }
5208                         }
5209                         break;
5210                 }
5211         case SCTP_PEER_ADDR_PARAMS:
5212                 {
5213                         struct sctp_paddrparams *paddrp;
5214                         struct sctp_nets *net;
5215                         struct sockaddr *addr;
5216
5217 #if defined(INET) && defined(INET6)
5218                         struct sockaddr_in sin_store;
5219
5220 #endif
5221
5222                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5223                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5224
5225 #if defined(INET) && defined(INET6)
5226                         if (paddrp->spp_address.ss_family == AF_INET6) {
5227                                 struct sockaddr_in6 *sin6;
5228
5229                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5230                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5231                                         in6_sin6_2_sin(&sin_store, sin6);
5232                                         addr = (struct sockaddr *)&sin_store;
5233                                 } else {
5234                                         addr = (struct sockaddr *)&paddrp->spp_address;
5235                                 }
5236                         } else {
5237                                 addr = (struct sockaddr *)&paddrp->spp_address;
5238                         }
5239 #else
5240                         addr = (struct sockaddr *)&paddrp->spp_address;
5241 #endif
5242                         if (stcb != NULL) {
5243                                 net = sctp_findnet(stcb, addr);
5244                         } else {
5245                                 /*
5246                                  * We increment here since
5247                                  * sctp_findassociation_ep_addr() wil do a
5248                                  * decrement if it finds the stcb as long as
5249                                  * the locked tcb (last argument) is NOT a
5250                                  * TCB.. aka NULL.
5251                                  */
5252                                 net = NULL;
5253                                 SCTP_INP_INCR_REF(inp);
5254                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5255                                     &net, NULL, NULL);
5256                                 if (stcb == NULL) {
5257                                         SCTP_INP_DECR_REF(inp);
5258                                 }
5259                         }
5260                         if ((stcb != NULL) && (net == NULL)) {
5261 #ifdef INET
5262                                 if (addr->sa_family == AF_INET) {
5263
5264                                         struct sockaddr_in *sin;
5265
5266                                         sin = (struct sockaddr_in *)addr;
5267                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5268                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5269                                                 SCTP_TCB_UNLOCK(stcb);
5270                                                 error = EINVAL;
5271                                                 break;
5272                                         }
5273                                 } else
5274 #endif
5275 #ifdef INET6
5276                                 if (addr->sa_family == AF_INET6) {
5277                                         struct sockaddr_in6 *sin6;
5278
5279                                         sin6 = (struct sockaddr_in6 *)addr;
5280                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5281                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5282                                                 SCTP_TCB_UNLOCK(stcb);
5283                                                 error = EINVAL;
5284                                                 break;
5285                                         }
5286                                 } else
5287 #endif
5288                                 {
5289                                         error = EAFNOSUPPORT;
5290                                         SCTP_TCB_UNLOCK(stcb);
5291                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5292                                         break;
5293                                 }
5294                         }
5295                         /* sanity checks */
5296                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5297                                 if (stcb)
5298                                         SCTP_TCB_UNLOCK(stcb);
5299                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5300                                 return (EINVAL);
5301                         }
5302                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5303                                 if (stcb)
5304                                         SCTP_TCB_UNLOCK(stcb);
5305                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5306                                 return (EINVAL);
5307                         }
5308                         if (stcb != NULL) {
5309                                 /************************TCB SPECIFIC SET ******************/
5310                                 if (net != NULL) {
5311                                         /************************NET SPECIFIC SET ******************/
5312                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5313                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5314                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5315                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5316                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5317                                                 }
5318                                                 net->dest_state |= SCTP_ADDR_NOHB;
5319                                         }
5320                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5321                                                 if (paddrp->spp_hbinterval) {
5322                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5323                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5324                                                         net->heart_beat_delay = 0;
5325                                                 }
5326                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5327                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5328                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5329                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5330                                         }
5331                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5332                                                 /* on demand HB */
5333                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5334                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5335                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5336                                         }
5337                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5338                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5339                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5340                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5341                                                 }
5342                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5343                                                 net->mtu = paddrp->spp_pathmtu;
5344                                                 switch (net->ro._l_addr.sa.sa_family) {
5345 #ifdef INET
5346                                                 case AF_INET:
5347                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5348                                                         break;
5349 #endif
5350 #ifdef INET6
5351                                                 case AF_INET6:
5352                                                         net->mtu += SCTP_MIN_OVERHEAD;
5353                                                         break;
5354 #endif
5355                                                 default:
5356                                                         break;
5357                                                 }
5358                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5359                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5360                                                 }
5361                                         }
5362                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5363                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5364                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5365                                                 }
5366                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5367                                         }
5368                                         if (paddrp->spp_pathmaxrxt) {
5369                                                 if (net->dest_state & SCTP_ADDR_PF) {
5370                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5371                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5372                                                         }
5373                                                 } else {
5374                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5375                                                             (net->error_count > net->pf_threshold)) {
5376                                                                 net->dest_state |= SCTP_ADDR_PF;
5377                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5378                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5379                                                                     stcb->sctp_ep, stcb, net,
5380                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5381                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5382                                                         }
5383                                                 }
5384                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5385                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5386                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5387                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5388                                                         }
5389                                                 } else {
5390                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5391                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5392                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5393                                                         }
5394                                                 }
5395                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5396                                         }
5397                                         if (paddrp->spp_flags & SPP_DSCP) {
5398                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5399                                                 net->dscp |= 0x01;
5400                                         }
5401 #ifdef INET6
5402                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5403                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5404                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5405                                                         net->flowlabel |= 0x80000000;
5406                                                 }
5407                                         }
5408 #endif
5409                                 } else {
5410                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5411                                         if (paddrp->spp_pathmaxrxt != 0) {
5412                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5413                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5414                                                         if (net->dest_state & SCTP_ADDR_PF) {
5415                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5416                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5417                                                                 }
5418                                                         } else {
5419                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5420                                                                     (net->error_count > net->pf_threshold)) {
5421                                                                         net->dest_state |= SCTP_ADDR_PF;
5422                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5423                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5424                                                                             stcb->sctp_ep, stcb, net,
5425                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5426                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5427                                                                 }
5428                                                         }
5429                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5430                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5431                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5432                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5433                                                                 }
5434                                                         } else {
5435                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5436                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5437                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5438                                                                 }
5439                                                         }
5440                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5441                                                 }
5442                                         }
5443                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5444                                                 if (paddrp->spp_hbinterval != 0) {
5445                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5446                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5447                                                         stcb->asoc.heart_beat_delay = 0;
5448                                                 }
5449                                                 /* Turn back on the timer */
5450                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5451                                                         if (paddrp->spp_hbinterval != 0) {
5452                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5453                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5454                                                                 net->heart_beat_delay = 0;
5455                                                         }
5456                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5457                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5458                                                         }
5459                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5460                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5461                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5462                                                 }
5463                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5464                                         }
5465                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5466                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5467                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5468                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5469                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5470                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5471                                                                             inp, stcb, net,
5472                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5473                                                                 }
5474                                                         }
5475                                                 }
5476                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5477                                         }
5478                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5479                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5480                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5481                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5482                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5483                                                         }
5484                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5485                                                         net->mtu = paddrp->spp_pathmtu;
5486                                                         switch (net->ro._l_addr.sa.sa_family) {
5487 #ifdef INET
5488                                                         case AF_INET:
5489                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5490                                                                 break;
5491 #endif
5492 #ifdef INET6
5493                                                         case AF_INET6:
5494                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5495                                                                 break;
5496 #endif
5497                                                         default:
5498                                                                 break;
5499                                                         }
5500                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5501                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5502                                                         }
5503                                                 }
5504                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5505                                         }
5506                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5507                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5508                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5509                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5510                                                         }
5511                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5512                                                 }
5513                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5514                                         }
5515                                         if (paddrp->spp_flags & SPP_DSCP) {
5516                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5517                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5518                                                         net->dscp |= 0x01;
5519                                                 }
5520                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5521                                                 stcb->asoc.default_dscp |= 0x01;
5522                                         }
5523 #ifdef INET6
5524                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5525                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5526                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5527                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5528                                                                 net->flowlabel |= 0x80000000;
5529                                                         }
5530                                                 }
5531                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5532                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5533                                         }
5534 #endif
5535                                 }
5536                                 SCTP_TCB_UNLOCK(stcb);
5537                         } else {
5538                                 /************************NO TCB, SET TO default stuff ******************/
5539                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5540                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5541                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5542                                         SCTP_INP_WLOCK(inp);
5543                                         /*
5544                                          * For the TOS/FLOWLABEL stuff you
5545                                          * set it with the options on the
5546                                          * socket
5547                                          */
5548                                         if (paddrp->spp_pathmaxrxt != 0) {
5549                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5550                                         }
5551                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5552                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5553                                         else if (paddrp->spp_hbinterval != 0) {
5554                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5555                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5556                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5557                                         }
5558                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5559                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5560                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5561                                                 } else if (paddrp->spp_hbinterval) {
5562                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5563                                                 }
5564                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5565                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5566                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5567                                         }
5568                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5569                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5570                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5571                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5572                                         }
5573                                         if (paddrp->spp_flags & SPP_DSCP) {
5574                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5575                                                 inp->sctp_ep.default_dscp |= 0x01;
5576                                         }
5577 #ifdef INET6
5578                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5579                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5580                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5581                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5582                                                 }
5583                                         }
5584 #endif
5585                                         SCTP_INP_WUNLOCK(inp);
5586                                 } else {
5587                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5588                                         error = EINVAL;
5589                                 }
5590                         }
5591                         break;
5592                 }
5593         case SCTP_RTOINFO:
5594                 {
5595                         struct sctp_rtoinfo *srto;
5596                         uint32_t new_init, new_min, new_max;
5597
5598                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5599                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5600
5601                         if (stcb) {
5602                                 if (srto->srto_initial)
5603                                         new_init = srto->srto_initial;
5604                                 else
5605                                         new_init = stcb->asoc.initial_rto;
5606                                 if (srto->srto_max)
5607                                         new_max = srto->srto_max;
5608                                 else
5609                                         new_max = stcb->asoc.maxrto;
5610                                 if (srto->srto_min)
5611                                         new_min = srto->srto_min;
5612                                 else
5613                                         new_min = stcb->asoc.minrto;
5614                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5615                                         stcb->asoc.initial_rto = new_init;
5616                                         stcb->asoc.maxrto = new_max;
5617                                         stcb->asoc.minrto = new_min;
5618                                 } else {
5619                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5620                                         error = EINVAL;
5621                                 }
5622                                 SCTP_TCB_UNLOCK(stcb);
5623                         } else {
5624                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5625                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5626                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5627                                         SCTP_INP_WLOCK(inp);
5628                                         if (srto->srto_initial)
5629                                                 new_init = srto->srto_initial;
5630                                         else
5631                                                 new_init = inp->sctp_ep.initial_rto;
5632                                         if (srto->srto_max)
5633                                                 new_max = srto->srto_max;
5634                                         else
5635                                                 new_max = inp->sctp_ep.sctp_maxrto;
5636                                         if (srto->srto_min)
5637                                                 new_min = srto->srto_min;
5638                                         else
5639                                                 new_min = inp->sctp_ep.sctp_minrto;
5640                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5641                                                 inp->sctp_ep.initial_rto = new_init;
5642                                                 inp->sctp_ep.sctp_maxrto = new_max;
5643                                                 inp->sctp_ep.sctp_minrto = new_min;
5644                                         } else {
5645                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5646                                                 error = EINVAL;
5647                                         }
5648                                         SCTP_INP_WUNLOCK(inp);
5649                                 } else {
5650                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5651                                         error = EINVAL;
5652                                 }
5653                         }
5654                         break;
5655                 }
5656         case SCTP_ASSOCINFO:
5657                 {
5658                         struct sctp_assocparams *sasoc;
5659
5660                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5661                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5662                         if (sasoc->sasoc_cookie_life) {
5663                                 /* boundary check the cookie life */
5664                                 if (sasoc->sasoc_cookie_life < 1000)
5665                                         sasoc->sasoc_cookie_life = 1000;
5666                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5667                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5668                                 }
5669                         }
5670                         if (stcb) {
5671                                 if (sasoc->sasoc_asocmaxrxt)
5672                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5673                                 if (sasoc->sasoc_cookie_life) {
5674                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5675                                 }
5676                                 SCTP_TCB_UNLOCK(stcb);
5677                         } else {
5678                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5679                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5680                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5681                                         SCTP_INP_WLOCK(inp);
5682                                         if (sasoc->sasoc_asocmaxrxt)
5683                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5684                                         if (sasoc->sasoc_cookie_life) {
5685                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5686                                         }
5687                                         SCTP_INP_WUNLOCK(inp);
5688                                 } else {
5689                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5690                                         error = EINVAL;
5691                                 }
5692                         }
5693                         break;
5694                 }
5695         case SCTP_INITMSG:
5696                 {
5697                         struct sctp_initmsg *sinit;
5698
5699                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5700                         SCTP_INP_WLOCK(inp);
5701                         if (sinit->sinit_num_ostreams)
5702                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5703
5704                         if (sinit->sinit_max_instreams)
5705                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5706
5707                         if (sinit->sinit_max_attempts)
5708                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5709
5710                         if (sinit->sinit_max_init_timeo)
5711                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5712                         SCTP_INP_WUNLOCK(inp);
5713                         break;
5714                 }
5715         case SCTP_PRIMARY_ADDR:
5716                 {
5717                         struct sctp_setprim *spa;
5718                         struct sctp_nets *net;
5719                         struct sockaddr *addr;
5720
5721 #if defined(INET) && defined(INET6)
5722                         struct sockaddr_in sin_store;
5723
5724 #endif
5725
5726                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5727                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5728
5729 #if defined(INET) && defined(INET6)
5730                         if (spa->ssp_addr.ss_family == AF_INET6) {
5731                                 struct sockaddr_in6 *sin6;
5732
5733                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5734                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5735                                         in6_sin6_2_sin(&sin_store, sin6);
5736                                         addr = (struct sockaddr *)&sin_store;
5737                                 } else {
5738                                         addr = (struct sockaddr *)&spa->ssp_addr;
5739                                 }
5740                         } else {
5741                                 addr = (struct sockaddr *)&spa->ssp_addr;
5742                         }
5743 #else
5744                         addr = (struct sockaddr *)&spa->ssp_addr;
5745 #endif
5746                         if (stcb != NULL) {
5747                                 net = sctp_findnet(stcb, addr);
5748                         } else {
5749                                 /*
5750                                  * We increment here since
5751                                  * sctp_findassociation_ep_addr() wil do a
5752                                  * decrement if it finds the stcb as long as
5753                                  * the locked tcb (last argument) is NOT a
5754                                  * TCB.. aka NULL.
5755                                  */
5756                                 net = NULL;
5757                                 SCTP_INP_INCR_REF(inp);
5758                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5759                                     &net, NULL, NULL);
5760                                 if (stcb == NULL) {
5761                                         SCTP_INP_DECR_REF(inp);
5762                                 }
5763                         }
5764
5765                         if ((stcb != NULL) && (net != NULL)) {
5766                                 if (net != stcb->asoc.primary_destination) {
5767                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5768                                                 /* Ok we need to set it */
5769                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5770                                                         if ((stcb->asoc.alternate) &&
5771                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5772                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5773                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5774                                                                 stcb->asoc.alternate = NULL;
5775                                                         }
5776                                                 } else {
5777                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5778                                                         error = EINVAL;
5779                                                 }
5780                                         } else {
5781                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5782                                                 error = EINVAL;
5783                                         }
5784                                 }
5785                         } else {
5786                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5787                                 error = EINVAL;
5788                         }
5789                         if (stcb != NULL) {
5790                                 SCTP_TCB_UNLOCK(stcb);
5791                         }
5792                         break;
5793                 }
5794         case SCTP_SET_DYNAMIC_PRIMARY:
5795                 {
5796                         union sctp_sockstore *ss;
5797
5798                         error = priv_check(curthread,
5799                             PRIV_NETINET_RESERVEDPORT);
5800                         if (error)
5801                                 break;
5802
5803                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5804                         /* SUPER USER CHECK? */
5805                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5806                         break;
5807                 }
5808         case SCTP_SET_PEER_PRIMARY_ADDR:
5809                 {
5810                         struct sctp_setpeerprim *sspp;
5811                         struct sockaddr *addr;
5812
5813 #if defined(INET) && defined(INET6)
5814                         struct sockaddr_in sin_store;
5815
5816 #endif
5817
5818                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5819                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5820                         if (stcb != NULL) {
5821                                 struct sctp_ifa *ifa;
5822
5823 #if defined(INET) && defined(INET6)
5824                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5825                                         struct sockaddr_in6 *sin6;
5826
5827                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5828                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5829                                                 in6_sin6_2_sin(&sin_store, sin6);
5830                                                 addr = (struct sockaddr *)&sin_store;
5831                                         } else {
5832                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5833                                         }
5834                                 } else {
5835                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5836                                 }
5837 #else
5838                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5839 #endif
5840                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5841                                 if (ifa == NULL) {
5842                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5843                                         error = EINVAL;
5844                                         goto out_of_it;
5845                                 }
5846                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5847                                         /*
5848                                          * Must validate the ifa found is in
5849                                          * our ep
5850                                          */
5851                                         struct sctp_laddr *laddr;
5852                                         int found = 0;
5853
5854                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5855                                                 if (laddr->ifa == NULL) {
5856                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5857                                                             __func__);
5858                                                         continue;
5859                                                 }
5860                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5861                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5862                                                         continue;
5863                                                 }
5864                                                 if (laddr->ifa == ifa) {
5865                                                         found = 1;
5866                                                         break;
5867                                                 }
5868                                         }
5869                                         if (!found) {
5870                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5871                                                 error = EINVAL;
5872                                                 goto out_of_it;
5873                                         }
5874                                 } else {
5875                                         switch (addr->sa_family) {
5876 #ifdef INET
5877                                         case AF_INET:
5878                                                 {
5879                                                         struct sockaddr_in *sin;
5880
5881                                                         sin = (struct sockaddr_in *)addr;
5882                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5883                                                             &sin->sin_addr) != 0) {
5884                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5885                                                                 error = EINVAL;
5886                                                                 goto out_of_it;
5887                                                         }
5888                                                         break;
5889                                                 }
5890 #endif
5891 #ifdef INET6
5892                                         case AF_INET6:
5893                                                 {
5894                                                         struct sockaddr_in6 *sin6;
5895
5896                                                         sin6 = (struct sockaddr_in6 *)addr;
5897                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5898                                                             &sin6->sin6_addr) != 0) {
5899                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5900                                                                 error = EINVAL;
5901                                                                 goto out_of_it;
5902                                                         }
5903                                                         break;
5904                                                 }
5905 #endif
5906                                         default:
5907                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5908                                                 error = EINVAL;
5909                                                 goto out_of_it;
5910                                         }
5911                                 }
5912                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5913                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5914                                         error = EINVAL;
5915                                 }
5916                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5917                 out_of_it:
5918                                 SCTP_TCB_UNLOCK(stcb);
5919                         } else {
5920                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5921                                 error = EINVAL;
5922                         }
5923                         break;
5924                 }
5925         case SCTP_BINDX_ADD_ADDR:
5926                 {
5927                         struct sctp_getaddresses *addrs;
5928                         struct thread *td;
5929
5930                         td = (struct thread *)p;
5931                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5932                             optsize);
5933 #ifdef INET
5934                         if (addrs->addr->sa_family == AF_INET) {
5935                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5936                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5937                                         error = EINVAL;
5938                                         break;
5939                                 }
5940                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5941                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5942                                         break;
5943                                 }
5944                         } else
5945 #endif
5946 #ifdef INET6
5947                         if (addrs->addr->sa_family == AF_INET6) {
5948                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5950                                         error = EINVAL;
5951                                         break;
5952                                 }
5953                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5954                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5955                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5956                                         break;
5957                                 }
5958                         } else
5959 #endif
5960                         {
5961                                 error = EAFNOSUPPORT;
5962                                 break;
5963                         }
5964                         sctp_bindx_add_address(so, inp, addrs->addr,
5965                             addrs->sget_assoc_id, vrf_id,
5966                             &error, p);
5967                         break;
5968                 }
5969         case SCTP_BINDX_REM_ADDR:
5970                 {
5971                         struct sctp_getaddresses *addrs;
5972                         struct thread *td;
5973
5974                         td = (struct thread *)p;
5975
5976                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5977 #ifdef INET
5978                         if (addrs->addr->sa_family == AF_INET) {
5979                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5980                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5981                                         error = EINVAL;
5982                                         break;
5983                                 }
5984                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5985                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5986                                         break;
5987                                 }
5988                         } else
5989 #endif
5990 #ifdef INET6
5991                         if (addrs->addr->sa_family == AF_INET6) {
5992                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5993                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5994                                         error = EINVAL;
5995                                         break;
5996                                 }
5997                                 if (td != NULL &&
5998                                     (error = prison_local_ip6(td->td_ucred,
5999                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
6000                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6001                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6002                                         break;
6003                                 }
6004                         } else
6005 #endif
6006                         {
6007                                 error = EAFNOSUPPORT;
6008                                 break;
6009                         }
6010                         sctp_bindx_delete_address(inp, addrs->addr,
6011                             addrs->sget_assoc_id, vrf_id,
6012                             &error);
6013                         break;
6014                 }
6015         case SCTP_EVENT:
6016                 {
6017                         struct sctp_event *event;
6018                         uint32_t event_type;
6019
6020                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6021                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6022                         switch (event->se_type) {
6023                         case SCTP_ASSOC_CHANGE:
6024                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6025                                 break;
6026                         case SCTP_PEER_ADDR_CHANGE:
6027                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6028                                 break;
6029                         case SCTP_REMOTE_ERROR:
6030                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6031                                 break;
6032                         case SCTP_SEND_FAILED:
6033                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6034                                 break;
6035                         case SCTP_SHUTDOWN_EVENT:
6036                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6037                                 break;
6038                         case SCTP_ADAPTATION_INDICATION:
6039                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6040                                 break;
6041                         case SCTP_PARTIAL_DELIVERY_EVENT:
6042                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6043                                 break;
6044                         case SCTP_AUTHENTICATION_EVENT:
6045                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6046                                 break;
6047                         case SCTP_STREAM_RESET_EVENT:
6048                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6049                                 break;
6050                         case SCTP_SENDER_DRY_EVENT:
6051                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6052                                 break;
6053                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6054                                 event_type = 0;
6055                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6056                                 error = ENOTSUP;
6057                                 break;
6058                         case SCTP_ASSOC_RESET_EVENT:
6059                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6060                                 break;
6061                         case SCTP_STREAM_CHANGE_EVENT:
6062                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6063                                 break;
6064                         case SCTP_SEND_FAILED_EVENT:
6065                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6066                                 break;
6067                         default:
6068                                 event_type = 0;
6069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6070                                 error = EINVAL;
6071                                 break;
6072                         }
6073                         if (event_type > 0) {
6074                                 if (stcb) {
6075                                         if (event->se_on) {
6076                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6077                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6078                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6079                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6080                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6081                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6082                                                         }
6083                                                 }
6084                                         } else {
6085                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6086                                         }
6087                                         SCTP_TCB_UNLOCK(stcb);
6088                                 } else {
6089                                         /*
6090                                          * We don't want to send up a storm
6091                                          * of events, so return an error for
6092                                          * sender dry events
6093                                          */
6094                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6095                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6096                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6097                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6098                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6099                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6100                                                 error = ENOTSUP;
6101                                                 break;
6102                                         }
6103                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6104                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6105                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6106                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6107                                                 SCTP_INP_WLOCK(inp);
6108                                                 if (event->se_on) {
6109                                                         sctp_feature_on(inp, event_type);
6110                                                 } else {
6111                                                         sctp_feature_off(inp, event_type);
6112                                                 }
6113                                                 SCTP_INP_WUNLOCK(inp);
6114                                         }
6115                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6116                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6117                                                 SCTP_INP_RLOCK(inp);
6118                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6119                                                         SCTP_TCB_LOCK(stcb);
6120                                                         if (event->se_on) {
6121                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6122                                                         } else {
6123                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6124                                                         }
6125                                                         SCTP_TCB_UNLOCK(stcb);
6126                                                 }
6127                                                 SCTP_INP_RUNLOCK(inp);
6128                                         }
6129                                 }
6130                         }
6131                         break;
6132                 }
6133         case SCTP_RECVRCVINFO:
6134                 {
6135                         int *onoff;
6136
6137                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6138                         SCTP_INP_WLOCK(inp);
6139                         if (*onoff != 0) {
6140                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6141                         } else {
6142                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6143                         }
6144                         SCTP_INP_WUNLOCK(inp);
6145                         break;
6146                 }
6147         case SCTP_RECVNXTINFO:
6148                 {
6149                         int *onoff;
6150
6151                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6152                         SCTP_INP_WLOCK(inp);
6153                         if (*onoff != 0) {
6154                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6155                         } else {
6156                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6157                         }
6158                         SCTP_INP_WUNLOCK(inp);
6159                         break;
6160                 }
6161         case SCTP_DEFAULT_SNDINFO:
6162                 {
6163                         struct sctp_sndinfo *info;
6164                         uint16_t policy;
6165
6166                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6167                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6168
6169                         if (stcb) {
6170                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6171                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6172                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6173                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6174                                         stcb->asoc.def_send.sinfo_flags |= policy;
6175                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6176                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6177                                 } else {
6178                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6179                                         error = EINVAL;
6180                                 }
6181                                 SCTP_TCB_UNLOCK(stcb);
6182                         } else {
6183                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6184                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6185                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6186                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6187                                         SCTP_INP_WLOCK(inp);
6188                                         inp->def_send.sinfo_stream = info->snd_sid;
6189                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6190                                         inp->def_send.sinfo_flags = info->snd_flags;
6191                                         inp->def_send.sinfo_flags |= policy;
6192                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6193                                         inp->def_send.sinfo_context = info->snd_context;
6194                                         SCTP_INP_WUNLOCK(inp);
6195                                 }
6196                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6197                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6198                                         SCTP_INP_RLOCK(inp);
6199                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6200                                                 SCTP_TCB_LOCK(stcb);
6201                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6202                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6203                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6204                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6205                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6206                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6207                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6208                                                 }
6209                                                 SCTP_TCB_UNLOCK(stcb);
6210                                         }
6211                                         SCTP_INP_RUNLOCK(inp);
6212                                 }
6213                         }
6214                         break;
6215                 }
6216         case SCTP_DEFAULT_PRINFO:
6217                 {
6218                         struct sctp_default_prinfo *info;
6219
6220                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6221                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6222
6223                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6224                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6225                                 error = EINVAL;
6226                                 break;
6227                         }
6228                         if (stcb) {
6229                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6230                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6231                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6232                                 SCTP_TCB_UNLOCK(stcb);
6233                         } else {
6234                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6235                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6236                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6237                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6238                                         SCTP_INP_WLOCK(inp);
6239                                         inp->def_send.sinfo_flags &= 0xfff0;
6240                                         inp->def_send.sinfo_flags |= info->pr_policy;
6241                                         inp->def_send.sinfo_timetolive = info->pr_value;
6242                                         SCTP_INP_WUNLOCK(inp);
6243                                 }
6244                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6245                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6246                                         SCTP_INP_RLOCK(inp);
6247                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6248                                                 SCTP_TCB_LOCK(stcb);
6249                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6250                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6251                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6252                                                 SCTP_TCB_UNLOCK(stcb);
6253                                         }
6254                                         SCTP_INP_RUNLOCK(inp);
6255                                 }
6256                         }
6257                         break;
6258                 }
6259         case SCTP_PEER_ADDR_THLDS:
6260                 /* Applies to the specific association */
6261                 {
6262                         struct sctp_paddrthlds *thlds;
6263                         struct sctp_nets *net;
6264                         struct sockaddr *addr;
6265
6266 #if defined(INET) && defined(INET6)
6267                         struct sockaddr_in sin_store;
6268
6269 #endif
6270
6271                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6272                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6273
6274 #if defined(INET) && defined(INET6)
6275                         if (thlds->spt_address.ss_family == AF_INET6) {
6276                                 struct sockaddr_in6 *sin6;
6277
6278                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6279                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6280                                         in6_sin6_2_sin(&sin_store, sin6);
6281                                         addr = (struct sockaddr *)&sin_store;
6282                                 } else {
6283                                         addr = (struct sockaddr *)&thlds->spt_address;
6284                                 }
6285                         } else {
6286                                 addr = (struct sockaddr *)&thlds->spt_address;
6287                         }
6288 #else
6289                         addr = (struct sockaddr *)&thlds->spt_address;
6290 #endif
6291                         if (stcb != NULL) {
6292                                 net = sctp_findnet(stcb, addr);
6293                         } else {
6294                                 /*
6295                                  * We increment here since
6296                                  * sctp_findassociation_ep_addr() wil do a
6297                                  * decrement if it finds the stcb as long as
6298                                  * the locked tcb (last argument) is NOT a
6299                                  * TCB.. aka NULL.
6300                                  */
6301                                 net = NULL;
6302                                 SCTP_INP_INCR_REF(inp);
6303                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6304                                     &net, NULL, NULL);
6305                                 if (stcb == NULL) {
6306                                         SCTP_INP_DECR_REF(inp);
6307                                 }
6308                         }
6309                         if ((stcb != NULL) && (net == NULL)) {
6310 #ifdef INET
6311                                 if (addr->sa_family == AF_INET) {
6312
6313                                         struct sockaddr_in *sin;
6314
6315                                         sin = (struct sockaddr_in *)addr;
6316                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6317                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6318                                                 SCTP_TCB_UNLOCK(stcb);
6319                                                 error = EINVAL;
6320                                                 break;
6321                                         }
6322                                 } else
6323 #endif
6324 #ifdef INET6
6325                                 if (addr->sa_family == AF_INET6) {
6326                                         struct sockaddr_in6 *sin6;
6327
6328                                         sin6 = (struct sockaddr_in6 *)addr;
6329                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6330                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6331                                                 SCTP_TCB_UNLOCK(stcb);
6332                                                 error = EINVAL;
6333                                                 break;
6334                                         }
6335                                 } else
6336 #endif
6337                                 {
6338                                         error = EAFNOSUPPORT;
6339                                         SCTP_TCB_UNLOCK(stcb);
6340                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6341                                         break;
6342                                 }
6343                         }
6344                         if (stcb != NULL) {
6345                                 if (net != NULL) {
6346                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6347                                         net->pf_threshold = thlds->spt_pathpfthld;
6348                                         if (net->dest_state & SCTP_ADDR_PF) {
6349                                                 if ((net->error_count > net->failure_threshold) ||
6350                                                     (net->error_count <= net->pf_threshold)) {
6351                                                         net->dest_state &= ~SCTP_ADDR_PF;
6352                                                 }
6353                                         } else {
6354                                                 if ((net->error_count > net->pf_threshold) &&
6355                                                     (net->error_count <= net->failure_threshold)) {
6356                                                         net->dest_state |= SCTP_ADDR_PF;
6357                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6358                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6359                                                             stcb->sctp_ep, stcb, net,
6360                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6361                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6362                                                 }
6363                                         }
6364                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6365                                                 if (net->error_count > net->failure_threshold) {
6366                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6367                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6368                                                 }
6369                                         } else {
6370                                                 if (net->error_count <= net->failure_threshold) {
6371                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6372                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6373                                                 }
6374                                         }
6375                                 } else {
6376                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6377                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6378                                                 net->pf_threshold = thlds->spt_pathpfthld;
6379                                                 if (net->dest_state & SCTP_ADDR_PF) {
6380                                                         if ((net->error_count > net->failure_threshold) ||
6381                                                             (net->error_count <= net->pf_threshold)) {
6382                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6383                                                         }
6384                                                 } else {
6385                                                         if ((net->error_count > net->pf_threshold) &&
6386                                                             (net->error_count <= net->failure_threshold)) {
6387                                                                 net->dest_state |= SCTP_ADDR_PF;
6388                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6389                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6390                                                                     stcb->sctp_ep, stcb, net,
6391                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6392                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6393                                                         }
6394                                                 }
6395                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6396                                                         if (net->error_count > net->failure_threshold) {
6397                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6398                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6399                                                         }
6400                                                 } else {
6401                                                         if (net->error_count <= net->failure_threshold) {
6402                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6403                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6404                                                         }
6405                                                 }
6406                                         }
6407                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6408                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6409                                 }
6410                                 SCTP_TCB_UNLOCK(stcb);
6411                         } else {
6412                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6413                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6414                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6415                                         SCTP_INP_WLOCK(inp);
6416                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6417                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6418                                         SCTP_INP_WUNLOCK(inp);
6419                                 } else {
6420                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6421                                         error = EINVAL;
6422                                 }
6423                         }
6424                         break;
6425                 }
6426         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6427                 {
6428                         struct sctp_udpencaps *encaps;
6429                         struct sctp_nets *net;
6430                         struct sockaddr *addr;
6431
6432 #if defined(INET) && defined(INET6)
6433                         struct sockaddr_in sin_store;
6434
6435 #endif
6436
6437                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6438                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6439
6440 #if defined(INET) && defined(INET6)
6441                         if (encaps->sue_address.ss_family == AF_INET6) {
6442                                 struct sockaddr_in6 *sin6;
6443
6444                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6445                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6446                                         in6_sin6_2_sin(&sin_store, sin6);
6447                                         addr = (struct sockaddr *)&sin_store;
6448                                 } else {
6449                                         addr = (struct sockaddr *)&encaps->sue_address;
6450                                 }
6451                         } else {
6452                                 addr = (struct sockaddr *)&encaps->sue_address;
6453                         }
6454 #else
6455                         addr = (struct sockaddr *)&encaps->sue_address;
6456 #endif
6457                         if (stcb != NULL) {
6458                                 net = sctp_findnet(stcb, addr);
6459                         } else {
6460                                 /*
6461                                  * We increment here since
6462                                  * sctp_findassociation_ep_addr() wil do a
6463                                  * decrement if it finds the stcb as long as
6464                                  * the locked tcb (last argument) is NOT a
6465                                  * TCB.. aka NULL.
6466                                  */
6467                                 net = NULL;
6468                                 SCTP_INP_INCR_REF(inp);
6469                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6470                                 if (stcb == NULL) {
6471                                         SCTP_INP_DECR_REF(inp);
6472                                 }
6473                         }
6474                         if ((stcb != NULL) && (net == NULL)) {
6475 #ifdef INET
6476                                 if (addr->sa_family == AF_INET) {
6477
6478                                         struct sockaddr_in *sin;
6479
6480                                         sin = (struct sockaddr_in *)addr;
6481                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6482                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6483                                                 SCTP_TCB_UNLOCK(stcb);
6484                                                 error = EINVAL;
6485                                                 break;
6486                                         }
6487                                 } else
6488 #endif
6489 #ifdef INET6
6490                                 if (addr->sa_family == AF_INET6) {
6491                                         struct sockaddr_in6 *sin6;
6492
6493                                         sin6 = (struct sockaddr_in6 *)addr;
6494                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6495                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6496                                                 SCTP_TCB_UNLOCK(stcb);
6497                                                 error = EINVAL;
6498                                                 break;
6499                                         }
6500                                 } else
6501 #endif
6502                                 {
6503                                         error = EAFNOSUPPORT;
6504                                         SCTP_TCB_UNLOCK(stcb);
6505                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6506                                         break;
6507                                 }
6508                         }
6509                         if (stcb != NULL) {
6510                                 if (net != NULL) {
6511                                         net->port = encaps->sue_port;
6512                                 } else {
6513                                         stcb->asoc.port = encaps->sue_port;
6514                                 }
6515                                 SCTP_TCB_UNLOCK(stcb);
6516                         } else {
6517                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6518                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6519                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6520                                         SCTP_INP_WLOCK(inp);
6521                                         inp->sctp_ep.port = encaps->sue_port;
6522                                         SCTP_INP_WUNLOCK(inp);
6523                                 } else {
6524                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6525                                         error = EINVAL;
6526                                 }
6527                         }
6528                         break;
6529                 }
6530         case SCTP_ECN_SUPPORTED:
6531                 {
6532                         struct sctp_assoc_value *av;
6533
6534                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6535                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6536
6537                         if (stcb) {
6538                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6539                                 error = EINVAL;
6540                                 SCTP_TCB_UNLOCK(stcb);
6541                         } else {
6542                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6543                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6544                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6545                                         SCTP_INP_WLOCK(inp);
6546                                         if (av->assoc_value == 0) {
6547                                                 inp->ecn_supported = 0;
6548                                         } else {
6549                                                 inp->ecn_supported = 1;
6550                                         }
6551                                         SCTP_INP_WUNLOCK(inp);
6552                                 } else {
6553                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6554                                         error = EINVAL;
6555                                 }
6556                         }
6557                         break;
6558                 }
6559         case SCTP_PR_SUPPORTED:
6560                 {
6561                         struct sctp_assoc_value *av;
6562
6563                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6564                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6565
6566                         if (stcb) {
6567                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6568                                 error = EINVAL;
6569                                 SCTP_TCB_UNLOCK(stcb);
6570                         } else {
6571                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6572                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6573                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6574                                         SCTP_INP_WLOCK(inp);
6575                                         if (av->assoc_value == 0) {
6576                                                 inp->prsctp_supported = 0;
6577                                         } else {
6578                                                 inp->prsctp_supported = 1;
6579                                         }
6580                                         SCTP_INP_WUNLOCK(inp);
6581                                 } else {
6582                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6583                                         error = EINVAL;
6584                                 }
6585                         }
6586                         break;
6587                 }
6588         case SCTP_AUTH_SUPPORTED:
6589                 {
6590                         struct sctp_assoc_value *av;
6591
6592                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6593                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6594
6595                         if (stcb) {
6596                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6597                                 error = EINVAL;
6598                                 SCTP_TCB_UNLOCK(stcb);
6599                         } else {
6600                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6601                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6602                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6603                                         if ((av->assoc_value == 0) &&
6604                                             (inp->asconf_supported == 1)) {
6605                                                 /*
6606                                                  * AUTH is required for
6607                                                  * ASCONF
6608                                                  */
6609                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6610                                                 error = EINVAL;
6611                                         } else {
6612                                                 SCTP_INP_WLOCK(inp);
6613                                                 if (av->assoc_value == 0) {
6614                                                         inp->auth_supported = 0;
6615                                                 } else {
6616                                                         inp->auth_supported = 1;
6617                                                 }
6618                                                 SCTP_INP_WUNLOCK(inp);
6619                                         }
6620                                 } else {
6621                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6622                                         error = EINVAL;
6623                                 }
6624                         }
6625                         break;
6626                 }
6627         case SCTP_ASCONF_SUPPORTED:
6628                 {
6629                         struct sctp_assoc_value *av;
6630
6631                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6632                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6633
6634                         if (stcb) {
6635                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6636                                 error = EINVAL;
6637                                 SCTP_TCB_UNLOCK(stcb);
6638                         } else {
6639                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6640                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6641                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6642                                         if ((av->assoc_value != 0) &&
6643                                             (inp->auth_supported == 0)) {
6644                                                 /*
6645                                                  * AUTH is required for
6646                                                  * ASCONF
6647                                                  */
6648                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6649                                                 error = EINVAL;
6650                                         } else {
6651                                                 SCTP_INP_WLOCK(inp);
6652                                                 if (av->assoc_value == 0) {
6653                                                         inp->asconf_supported = 0;
6654                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6655                                                             inp->sctp_ep.local_auth_chunks);
6656                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6657                                                             inp->sctp_ep.local_auth_chunks);
6658                                                 } else {
6659                                                         inp->asconf_supported = 1;
6660                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6661                                                             inp->sctp_ep.local_auth_chunks);
6662                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6663                                                             inp->sctp_ep.local_auth_chunks);
6664                                                 }
6665                                                 SCTP_INP_WUNLOCK(inp);
6666                                         }
6667                                 } else {
6668                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6669                                         error = EINVAL;
6670                                 }
6671                         }
6672                         break;
6673                 }
6674         case SCTP_RECONFIG_SUPPORTED:
6675                 {
6676                         struct sctp_assoc_value *av;
6677
6678                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6679                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6680
6681                         if (stcb) {
6682                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6683                                 error = EINVAL;
6684                                 SCTP_TCB_UNLOCK(stcb);
6685                         } else {
6686                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6687                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6688                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6689                                         SCTP_INP_WLOCK(inp);
6690                                         if (av->assoc_value == 0) {
6691                                                 inp->reconfig_supported = 0;
6692                                         } else {
6693                                                 inp->reconfig_supported = 1;
6694                                         }
6695                                         SCTP_INP_WUNLOCK(inp);
6696                                 } else {
6697                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6698                                         error = EINVAL;
6699                                 }
6700                         }
6701                         break;
6702                 }
6703         case SCTP_NRSACK_SUPPORTED:
6704                 {
6705                         struct sctp_assoc_value *av;
6706
6707                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6708                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6709
6710                         if (stcb) {
6711                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6712                                 error = EINVAL;
6713                                 SCTP_TCB_UNLOCK(stcb);
6714                         } else {
6715                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6716                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6717                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6718                                         SCTP_INP_WLOCK(inp);
6719                                         if (av->assoc_value == 0) {
6720                                                 inp->nrsack_supported = 0;
6721                                         } else {
6722                                                 inp->nrsack_supported = 1;
6723                                         }
6724                                         SCTP_INP_WUNLOCK(inp);
6725                                 } else {
6726                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6727                                         error = EINVAL;
6728                                 }
6729                         }
6730                         break;
6731                 }
6732         case SCTP_PKTDROP_SUPPORTED:
6733                 {
6734                         struct sctp_assoc_value *av;
6735
6736                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6737                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6738
6739                         if (stcb) {
6740                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6741                                 error = EINVAL;
6742                                 SCTP_TCB_UNLOCK(stcb);
6743                         } else {
6744                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6745                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6746                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6747                                         SCTP_INP_WLOCK(inp);
6748                                         if (av->assoc_value == 0) {
6749                                                 inp->pktdrop_supported = 0;
6750                                         } else {
6751                                                 inp->pktdrop_supported = 1;
6752                                         }
6753                                         SCTP_INP_WUNLOCK(inp);
6754                                 } else {
6755                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6756                                         error = EINVAL;
6757                                 }
6758                         }
6759                         break;
6760                 }
6761         case SCTP_MAX_CWND:
6762                 {
6763                         struct sctp_assoc_value *av;
6764                         struct sctp_nets *net;
6765
6766                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6767                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6768
6769                         if (stcb) {
6770                                 stcb->asoc.max_cwnd = av->assoc_value;
6771                                 if (stcb->asoc.max_cwnd > 0) {
6772                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6773                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6774                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6775                                                         net->cwnd = stcb->asoc.max_cwnd;
6776                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6777                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6778                                                         }
6779                                                 }
6780                                         }
6781                                 }
6782                                 SCTP_TCB_UNLOCK(stcb);
6783                         } else {
6784                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6785                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6786                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6787                                         SCTP_INP_WLOCK(inp);
6788                                         inp->max_cwnd = av->assoc_value;
6789                                         SCTP_INP_WUNLOCK(inp);
6790                                 } else {
6791                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6792                                         error = EINVAL;
6793                                 }
6794                         }
6795                         break;
6796                 }
6797         default:
6798                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6799                 error = ENOPROTOOPT;
6800                 break;
6801         }                       /* end switch (opt) */
6802         return (error);
6803 }
6804
6805 int
6806 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6807 {
6808         void *optval = NULL;
6809         size_t optsize = 0;
6810         void *p;
6811         int error = 0;
6812         struct sctp_inpcb *inp;
6813
6814         if ((sopt->sopt_level == SOL_SOCKET) &&
6815             (sopt->sopt_name == SO_SETFIB)) {
6816                 inp = (struct sctp_inpcb *)so->so_pcb;
6817                 if (inp == NULL) {
6818                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6819                         return (EINVAL);
6820                 }
6821                 SCTP_INP_WLOCK(inp);
6822                 inp->fibnum = so->so_fibnum;
6823                 SCTP_INP_WUNLOCK(inp);
6824                 return (0);
6825         }
6826         if (sopt->sopt_level != IPPROTO_SCTP) {
6827                 /* wrong proto level... send back up to IP */
6828 #ifdef INET6
6829                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6830                         error = ip6_ctloutput(so, sopt);
6831 #endif                          /* INET6 */
6832 #if defined(INET) && defined(INET6)
6833                 else
6834 #endif
6835 #ifdef INET
6836                         error = ip_ctloutput(so, sopt);
6837 #endif
6838                 return (error);
6839         }
6840         optsize = sopt->sopt_valsize;
6841         if (optsize) {
6842                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6843                 if (optval == NULL) {
6844                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6845                         return (ENOBUFS);
6846                 }
6847                 error = sooptcopyin(sopt, optval, optsize, optsize);
6848                 if (error) {
6849                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6850                         goto out;
6851                 }
6852         }
6853         p = (void *)sopt->sopt_td;
6854         if (sopt->sopt_dir == SOPT_SET) {
6855                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6856         } else if (sopt->sopt_dir == SOPT_GET) {
6857                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6858         } else {
6859                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6860                 error = EINVAL;
6861         }
6862         if ((error == 0) && (optval != NULL)) {
6863                 error = sooptcopyout(sopt, optval, optsize);
6864                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6865         } else if (optval != NULL) {
6866                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6867         }
6868 out:
6869         return (error);
6870 }
6871
6872 #ifdef INET
6873 static int
6874 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6875 {
6876         int error = 0;
6877         int create_lock_on = 0;
6878         uint32_t vrf_id;
6879         struct sctp_inpcb *inp;
6880         struct sctp_tcb *stcb = NULL;
6881
6882         inp = (struct sctp_inpcb *)so->so_pcb;
6883         if (inp == NULL) {
6884                 /* I made the same as TCP since we are not setup? */
6885                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6886                 return (ECONNRESET);
6887         }
6888         if (addr == NULL) {
6889                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6890                 return EINVAL;
6891         }
6892         switch (addr->sa_family) {
6893 #ifdef INET6
6894         case AF_INET6:
6895                 {
6896                         struct sockaddr_in6 *sin6p;
6897
6898                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6899                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6900                                 return (EINVAL);
6901                         }
6902                         sin6p = (struct sockaddr_in6 *)addr;
6903                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6904                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6905                                 return (error);
6906                         }
6907                         break;
6908                 }
6909 #endif
6910 #ifdef INET
6911         case AF_INET:
6912                 {
6913                         struct sockaddr_in *sinp;
6914
6915                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6916                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6917                                 return (EINVAL);
6918                         }
6919                         sinp = (struct sockaddr_in *)addr;
6920                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6921                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6922                                 return (error);
6923                         }
6924                         break;
6925                 }
6926 #endif
6927         default:
6928                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6929                 return (EAFNOSUPPORT);
6930         }
6931         SCTP_INP_INCR_REF(inp);
6932         SCTP_ASOC_CREATE_LOCK(inp);
6933         create_lock_on = 1;
6934
6935
6936         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6937             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6938                 /* Should I really unlock ? */
6939                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6940                 error = EFAULT;
6941                 goto out_now;
6942         }
6943 #ifdef INET6
6944         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6945             (addr->sa_family == AF_INET6)) {
6946                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6947                 error = EINVAL;
6948                 goto out_now;
6949         }
6950 #endif
6951         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6952             SCTP_PCB_FLAGS_UNBOUND) {
6953                 /* Bind a ephemeral port */
6954                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6955                 if (error) {
6956                         goto out_now;
6957                 }
6958         }
6959         /* Now do we connect? */
6960         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6961             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6962                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6963                 error = EINVAL;
6964                 goto out_now;
6965         }
6966         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6967             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6968                 /* We are already connected AND the TCP model */
6969                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6970                 error = EADDRINUSE;
6971                 goto out_now;
6972         }
6973         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6974                 SCTP_INP_RLOCK(inp);
6975                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6976                 SCTP_INP_RUNLOCK(inp);
6977         } else {
6978                 /*
6979                  * We increment here since sctp_findassociation_ep_addr()
6980                  * will do a decrement if it finds the stcb as long as the
6981                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6982                  */
6983                 SCTP_INP_INCR_REF(inp);
6984                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6985                 if (stcb == NULL) {
6986                         SCTP_INP_DECR_REF(inp);
6987                 } else {
6988                         SCTP_TCB_UNLOCK(stcb);
6989                 }
6990         }
6991         if (stcb != NULL) {
6992                 /* Already have or am bring up an association */
6993                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6994                 error = EALREADY;
6995                 goto out_now;
6996         }
6997         vrf_id = inp->def_vrf_id;
6998         /* We are GOOD to go */
6999         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, inp->sctp_ep.pre_open_stream_count, p);
7000         if (stcb == NULL) {
7001                 /* Gak! no memory */
7002                 goto out_now;
7003         }
7004         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7005                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7006                 /* Set the connected flag so we can queue data */
7007                 soisconnecting(so);
7008         }
7009         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
7010         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7011
7012         /* initialize authentication parameters for the assoc */
7013         sctp_initialize_auth_params(inp, stcb);
7014
7015         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7016         SCTP_TCB_UNLOCK(stcb);
7017 out_now:
7018         if (create_lock_on) {
7019                 SCTP_ASOC_CREATE_UNLOCK(inp);
7020         }
7021         SCTP_INP_DECR_REF(inp);
7022         return (error);
7023 }
7024
7025 #endif
7026
7027 int
7028 sctp_listen(struct socket *so, int backlog, struct thread *p)
7029 {
7030         /*
7031          * Note this module depends on the protocol processing being called
7032          * AFTER any socket level flags and backlog are applied to the
7033          * socket. The traditional way that the socket flags are applied is
7034          * AFTER protocol processing. We have made a change to the
7035          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7036          * place if the socket API for SCTP is to work properly.
7037          */
7038
7039         int error = 0;
7040         struct sctp_inpcb *inp;
7041
7042         inp = (struct sctp_inpcb *)so->so_pcb;
7043         if (inp == NULL) {
7044                 /* I made the same as TCP since we are not setup? */
7045                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7046                 return (ECONNRESET);
7047         }
7048         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7049                 /* See if we have a listener */
7050                 struct sctp_inpcb *tinp;
7051                 union sctp_sockstore store;
7052
7053                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7054                         /* not bound all */
7055                         struct sctp_laddr *laddr;
7056
7057                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7058                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7059                                 switch (store.sa.sa_family) {
7060 #ifdef INET
7061                                 case AF_INET:
7062                                         store.sin.sin_port = inp->sctp_lport;
7063                                         break;
7064 #endif
7065 #ifdef INET6
7066                                 case AF_INET6:
7067                                         store.sin6.sin6_port = inp->sctp_lport;
7068                                         break;
7069 #endif
7070                                 default:
7071                                         break;
7072                                 }
7073                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7074                                 if (tinp && (tinp != inp) &&
7075                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7076                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7077                                     (tinp->sctp_socket->so_qlimit)) {
7078                                         /*
7079                                          * we have a listener already and
7080                                          * its not this inp.
7081                                          */
7082                                         SCTP_INP_DECR_REF(tinp);
7083                                         return (EADDRINUSE);
7084                                 } else if (tinp) {
7085                                         SCTP_INP_DECR_REF(tinp);
7086                                 }
7087                         }
7088                 } else {
7089                         /* Setup a local addr bound all */
7090                         memset(&store, 0, sizeof(store));
7091 #ifdef INET6
7092                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7093                                 store.sa.sa_family = AF_INET6;
7094                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7095                         }
7096 #endif
7097 #ifdef INET
7098                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7099                                 store.sa.sa_family = AF_INET;
7100                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7101                         }
7102 #endif
7103                         switch (store.sa.sa_family) {
7104 #ifdef INET
7105                         case AF_INET:
7106                                 store.sin.sin_port = inp->sctp_lport;
7107                                 break;
7108 #endif
7109 #ifdef INET6
7110                         case AF_INET6:
7111                                 store.sin6.sin6_port = inp->sctp_lport;
7112                                 break;
7113 #endif
7114                         default:
7115                                 break;
7116                         }
7117                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7118                         if (tinp && (tinp != inp) &&
7119                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7120                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7121                             (tinp->sctp_socket->so_qlimit)) {
7122                                 /*
7123                                  * we have a listener already and its not
7124                                  * this inp.
7125                                  */
7126                                 SCTP_INP_DECR_REF(tinp);
7127                                 return (EADDRINUSE);
7128                         } else if (tinp) {
7129                                 SCTP_INP_DECR_REF(tinp);
7130                         }
7131                 }
7132         }
7133         SCTP_INP_RLOCK(inp);
7134 #ifdef SCTP_LOCK_LOGGING
7135         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7136                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7137         }
7138 #endif
7139         SOCK_LOCK(so);
7140         error = solisten_proto_check(so);
7141         SOCK_UNLOCK(so);
7142         if (error) {
7143                 SCTP_INP_RUNLOCK(inp);
7144                 return (error);
7145         }
7146         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7147             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7148                 /*
7149                  * The unlucky case - We are in the tcp pool with this guy.
7150                  * - Someone else is in the main inp slot. - We must move
7151                  * this guy (the listener) to the main slot - We must then
7152                  * move the guy that was listener to the TCP Pool.
7153                  */
7154                 if (sctp_swap_inpcb_for_listen(inp)) {
7155                         SCTP_INP_RUNLOCK(inp);
7156                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7157                         return (EADDRINUSE);
7158                 }
7159         }
7160         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7161             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7162                 /* We are already connected AND the TCP model */
7163                 SCTP_INP_RUNLOCK(inp);
7164                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7165                 return (EADDRINUSE);
7166         }
7167         SCTP_INP_RUNLOCK(inp);
7168         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7169                 /* We must do a bind. */
7170                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7171                         /* bind error, probably perm */
7172                         return (error);
7173                 }
7174         }
7175         SOCK_LOCK(so);
7176         /* It appears for 7.0 and on, we must always call this. */
7177         solisten_proto(so, backlog);
7178         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7179                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7180                 so->so_options &= ~SO_ACCEPTCONN;
7181         }
7182         if (backlog == 0) {
7183                 /* turning off listen */
7184                 so->so_options &= ~SO_ACCEPTCONN;
7185         }
7186         SOCK_UNLOCK(so);
7187         return (error);
7188 }
7189
7190 static int sctp_defered_wakeup_cnt = 0;
7191
7192 int
7193 sctp_accept(struct socket *so, struct sockaddr **addr)
7194 {
7195         struct sctp_tcb *stcb;
7196         struct sctp_inpcb *inp;
7197         union sctp_sockstore store;
7198
7199 #ifdef INET6
7200         int error;
7201
7202 #endif
7203         inp = (struct sctp_inpcb *)so->so_pcb;
7204
7205         if (inp == NULL) {
7206                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7207                 return (ECONNRESET);
7208         }
7209         SCTP_INP_RLOCK(inp);
7210         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7211                 SCTP_INP_RUNLOCK(inp);
7212                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7213                 return (EOPNOTSUPP);
7214         }
7215         if (so->so_state & SS_ISDISCONNECTED) {
7216                 SCTP_INP_RUNLOCK(inp);
7217                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7218                 return (ECONNABORTED);
7219         }
7220         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7221         if (stcb == NULL) {
7222                 SCTP_INP_RUNLOCK(inp);
7223                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7224                 return (ECONNRESET);
7225         }
7226         SCTP_TCB_LOCK(stcb);
7227         SCTP_INP_RUNLOCK(inp);
7228         store = stcb->asoc.primary_destination->ro._l_addr;
7229         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7230         SCTP_TCB_UNLOCK(stcb);
7231         switch (store.sa.sa_family) {
7232 #ifdef INET
7233         case AF_INET:
7234                 {
7235                         struct sockaddr_in *sin;
7236
7237                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7238                         if (sin == NULL)
7239                                 return (ENOMEM);
7240                         sin->sin_family = AF_INET;
7241                         sin->sin_len = sizeof(*sin);
7242                         sin->sin_port = store.sin.sin_port;
7243                         sin->sin_addr = store.sin.sin_addr;
7244                         *addr = (struct sockaddr *)sin;
7245                         break;
7246                 }
7247 #endif
7248 #ifdef INET6
7249         case AF_INET6:
7250                 {
7251                         struct sockaddr_in6 *sin6;
7252
7253                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7254                         if (sin6 == NULL)
7255                                 return (ENOMEM);
7256                         sin6->sin6_family = AF_INET6;
7257                         sin6->sin6_len = sizeof(*sin6);
7258                         sin6->sin6_port = store.sin6.sin6_port;
7259                         sin6->sin6_addr = store.sin6.sin6_addr;
7260                         if ((error = sa6_recoverscope(sin6)) != 0) {
7261                                 SCTP_FREE_SONAME(sin6);
7262                                 return (error);
7263                         }
7264                         *addr = (struct sockaddr *)sin6;
7265                         break;
7266                 }
7267 #endif
7268         default:
7269                 /* TSNH */
7270                 break;
7271         }
7272         /* Wake any delayed sleep action */
7273         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7274                 SCTP_INP_WLOCK(inp);
7275                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7276                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7277                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7278                         SCTP_INP_WUNLOCK(inp);
7279                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7280                         if (sowriteable(inp->sctp_socket)) {
7281                                 sowwakeup_locked(inp->sctp_socket);
7282                         } else {
7283                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7284                         }
7285                         SCTP_INP_WLOCK(inp);
7286                 }
7287                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7288                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7289                         SCTP_INP_WUNLOCK(inp);
7290                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7291                         if (soreadable(inp->sctp_socket)) {
7292                                 sctp_defered_wakeup_cnt++;
7293                                 sorwakeup_locked(inp->sctp_socket);
7294                         } else {
7295                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7296                         }
7297                         SCTP_INP_WLOCK(inp);
7298                 }
7299                 SCTP_INP_WUNLOCK(inp);
7300         }
7301         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7302                 SCTP_TCB_LOCK(stcb);
7303                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7304                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7305         }
7306         return (0);
7307 }
7308
7309 #ifdef INET
7310 int
7311 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7312 {
7313         struct sockaddr_in *sin;
7314         uint32_t vrf_id;
7315         struct sctp_inpcb *inp;
7316         struct sctp_ifa *sctp_ifa;
7317
7318         /*
7319          * Do the malloc first in case it blocks.
7320          */
7321         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7322         if (sin == NULL)
7323                 return (ENOMEM);
7324         sin->sin_family = AF_INET;
7325         sin->sin_len = sizeof(*sin);
7326         inp = (struct sctp_inpcb *)so->so_pcb;
7327         if (!inp) {
7328                 SCTP_FREE_SONAME(sin);
7329                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7330                 return (ECONNRESET);
7331         }
7332         SCTP_INP_RLOCK(inp);
7333         sin->sin_port = inp->sctp_lport;
7334         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7335                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7336                         struct sctp_tcb *stcb;
7337                         struct sockaddr_in *sin_a;
7338                         struct sctp_nets *net;
7339                         int fnd;
7340
7341                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7342                         if (stcb == NULL) {
7343                                 goto notConn;
7344                         }
7345                         fnd = 0;
7346                         sin_a = NULL;
7347                         SCTP_TCB_LOCK(stcb);
7348                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7349                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7350                                 if (sin_a == NULL)
7351                                         /* this will make coverity happy */
7352                                         continue;
7353
7354                                 if (sin_a->sin_family == AF_INET) {
7355                                         fnd = 1;
7356                                         break;
7357                                 }
7358                         }
7359                         if ((!fnd) || (sin_a == NULL)) {
7360                                 /* punt */
7361                                 SCTP_TCB_UNLOCK(stcb);
7362                                 goto notConn;
7363                         }
7364                         vrf_id = inp->def_vrf_id;
7365                         sctp_ifa = sctp_source_address_selection(inp,
7366                             stcb,
7367                             (sctp_route_t *) & net->ro,
7368                             net, 0, vrf_id);
7369                         if (sctp_ifa) {
7370                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7371                                 sctp_free_ifa(sctp_ifa);
7372                         }
7373                         SCTP_TCB_UNLOCK(stcb);
7374                 } else {
7375                         /* For the bound all case you get back 0 */
7376         notConn:
7377                         sin->sin_addr.s_addr = 0;
7378                 }
7379
7380         } else {
7381                 /* Take the first IPv4 address in the list */
7382                 struct sctp_laddr *laddr;
7383                 int fnd = 0;
7384
7385                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7386                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7387                                 struct sockaddr_in *sin_a;
7388
7389                                 sin_a = &laddr->ifa->address.sin;
7390                                 sin->sin_addr = sin_a->sin_addr;
7391                                 fnd = 1;
7392                                 break;
7393                         }
7394                 }
7395                 if (!fnd) {
7396                         SCTP_FREE_SONAME(sin);
7397                         SCTP_INP_RUNLOCK(inp);
7398                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7399                         return (ENOENT);
7400                 }
7401         }
7402         SCTP_INP_RUNLOCK(inp);
7403         (*addr) = (struct sockaddr *)sin;
7404         return (0);
7405 }
7406
7407 int
7408 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7409 {
7410         struct sockaddr_in *sin;
7411         int fnd;
7412         struct sockaddr_in *sin_a;
7413         struct sctp_inpcb *inp;
7414         struct sctp_tcb *stcb;
7415         struct sctp_nets *net;
7416
7417         /* Do the malloc first in case it blocks. */
7418         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7419         if (sin == NULL)
7420                 return (ENOMEM);
7421         sin->sin_family = AF_INET;
7422         sin->sin_len = sizeof(*sin);
7423
7424         inp = (struct sctp_inpcb *)so->so_pcb;
7425         if ((inp == NULL) ||
7426             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7427                 /* UDP type and listeners will drop out here */
7428                 SCTP_FREE_SONAME(sin);
7429                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7430                 return (ENOTCONN);
7431         }
7432         SCTP_INP_RLOCK(inp);
7433         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7434         if (stcb) {
7435                 SCTP_TCB_LOCK(stcb);
7436         }
7437         SCTP_INP_RUNLOCK(inp);
7438         if (stcb == NULL) {
7439                 SCTP_FREE_SONAME(sin);
7440                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7441                 return (ECONNRESET);
7442         }
7443         fnd = 0;
7444         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7445                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7446                 if (sin_a->sin_family == AF_INET) {
7447                         fnd = 1;
7448                         sin->sin_port = stcb->rport;
7449                         sin->sin_addr = sin_a->sin_addr;
7450                         break;
7451                 }
7452         }
7453         SCTP_TCB_UNLOCK(stcb);
7454         if (!fnd) {
7455                 /* No IPv4 address */
7456                 SCTP_FREE_SONAME(sin);
7457                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7458                 return (ENOENT);
7459         }
7460         (*addr) = (struct sockaddr *)sin;
7461         return (0);
7462 }
7463
7464 struct pr_usrreqs sctp_usrreqs = {
7465         .pru_abort = sctp_abort,
7466         .pru_accept = sctp_accept,
7467         .pru_attach = sctp_attach,
7468         .pru_bind = sctp_bind,
7469         .pru_connect = sctp_connect,
7470         .pru_control = in_control,
7471         .pru_close = sctp_close,
7472         .pru_detach = sctp_close,
7473         .pru_sopoll = sopoll_generic,
7474         .pru_flush = sctp_flush,
7475         .pru_disconnect = sctp_disconnect,
7476         .pru_listen = sctp_listen,
7477         .pru_peeraddr = sctp_peeraddr,
7478         .pru_send = sctp_sendm,
7479         .pru_shutdown = sctp_shutdown,
7480         .pru_sockaddr = sctp_ingetaddr,
7481         .pru_sosend = sctp_sosend,
7482         .pru_soreceive = sctp_soreceive
7483 };
7484
7485 #endif