sys/netinet/sctp_usrreq.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <netinet/sctp_os.h>
  36 #include <sys/proc.h>
  37 #include <netinet/sctp_pcb.h>
  38 #include <netinet/sctp_header.h>
  39 #include <netinet/sctp_var.h>
  40 #ifdef INET6
  41 #include <netinet6/sctp6_var.h>
  42 #endif
  43 #include <netinet/sctp_sysctl.h>
  44 #include <netinet/sctp_output.h>
  45 #include <netinet/sctp_uio.h>
  46 #include <netinet/sctp_asconf.h>
  47 #include <netinet/sctputil.h>
  48 #include <netinet/sctp_indata.h>
  49 #include <netinet/sctp_timer.h>
  50 #include <netinet/sctp_auth.h>
  51 #include <netinet/sctp_bsd_addr.h>
  52 #include <netinet/udp.h>
  53 #include <sys/eventhandler.h>
  54
  55 extern const struct sctp_cc_functions sctp_cc_functions[];
  56 extern const struct sctp_ss_functions sctp_ss_functions[];
  57
  58 static void
  59 sctp_init(void *arg SCTP_UNUSED)
  60 {
  61         u_long sb_max_adj;
  62
  63         /* Initialize and modify the sysctled variables */
  64         sctp_init_sysctls();
  65         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  66                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  67         /*
  68          * Allow a user to take no more than 1/2 the number of clusters or
  69          * the SB_MAX, whichever is smaller, for the send window.
  70          */
  71         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  72         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  73             (((uint32_t)nmbclusters / 2) * MCLBYTES));
  74         /*
  75          * Now for the recv window, should we take the same amount? or
  76          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  77          * now I will just copy.
  78          */
  79         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  80         SCTP_BASE_VAR(first_time) = 0;
  81         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  82         sctp_pcb_init();
  83 #if defined(SCTP_PACKET_LOGGING)
  84         SCTP_BASE_VAR(packet_log_writers) = 0;
  85         SCTP_BASE_VAR(packet_log_end) = 0;
  86         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  87 #endif
  88         SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
  89             sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
  90 }
  91
  92 VNET_SYSINIT(sctp_init, SI_SUB_PROTO_DOMAIN, SI_ORDER_THIRD, sctp_init, NULL);
  93
  94 #ifdef VIMAGE
  95 static void
  96 sctp_finish(void *unused __unused)
  97 {
  98         EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
  99         sctp_pcb_finish();
 100 }
 101
 102 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 103 #endif
 104
 105 void
 106 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint32_t mtu, bool resend)
 107 {
 108         struct sctp_association *asoc;
 109         struct sctp_tmit_chunk *chk;
 110         uint32_t overhead;
 111
 112         asoc = &stcb->asoc;
 113         KASSERT(mtu < asoc->smallest_mtu,
 114             ("Currently only reducing association MTU %u supported (MTU %u)",
 115             asoc->smallest_mtu, mtu));
 116         asoc->smallest_mtu = mtu;
 117         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 118                 overhead = SCTP_MIN_OVERHEAD;
 119         } else {
 120                 overhead = SCTP_MIN_V4_OVERHEAD;
 121         }
 122         if (asoc->idata_supported) {
 123                 if (sctp_auth_is_required_chunk(SCTP_IDATA, asoc->peer_auth_chunks)) {
 124                         overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
 125                 }
 126         } else {
 127                 if (sctp_auth_is_required_chunk(SCTP_DATA, asoc->peer_auth_chunks)) {
 128                         overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
 129                 }
 130         }
 131         KASSERT(overhead % 4 == 0,
 132             ("overhead (%u) not a multiple of 4", overhead));
 133         TAILQ_FOREACH(chk, &asoc->send_queue, sctp_next) {
 134                 if (((uint32_t)chk->send_size + overhead) > mtu) {
 135                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 136                 }
 137         }
 138         TAILQ_FOREACH(chk, &asoc->sent_queue, sctp_next) {
 139                 if (((uint32_t)chk->send_size + overhead) > mtu) {
 140                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 141                         if (resend && chk->sent < SCTP_DATAGRAM_RESEND) {
 142                                 /*
 143                                  * If requested, mark the chunk for
 144                                  * immediate resend, since we sent it being
 145                                  * too big.
 146                                  */
 147                                 sctp_flight_size_decrease(chk);
 148                                 sctp_total_flight_decrease(stcb, chk);
 149                                 chk->sent = SCTP_DATAGRAM_RESEND;
 150                                 sctp_ucount_incr(asoc->sent_queue_retran_cnt);
 151                                 chk->rec.data.doing_fast_retransmit = 0;
 152                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 153                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 154                                             chk->whoTo->flight_size,
 155                                             chk->book_size,
 156                                             (uint32_t)(uintptr_t)chk->whoTo,
 157                                             chk->rec.data.tsn);
 158                                 }
 159                                 /* Clear any time, so NO RTT is being done. */
 160                                 if (chk->do_rtt == 1) {
 161                                         chk->do_rtt = 0;
 162                                         chk->whoTo->rto_needed = 1;
 163                                 }
 164                         }
 165                 }
 166         }
 167 }
 168
 169 #ifdef INET
 170 void
 171 sctp_notify(struct sctp_inpcb *inp,
 172     struct sctp_tcb *stcb,
 173     struct sctp_nets *net,
 174     uint8_t icmp_type,
 175     uint8_t icmp_code,
 176     uint16_t ip_len,
 177     uint32_t next_mtu)
 178 {
 179         int timer_stopped;
 180
 181         if (icmp_type != ICMP_UNREACH) {
 182                 /* We only care about unreachable */
 183                 SCTP_TCB_UNLOCK(stcb);
 184                 return;
 185         }
 186         if ((icmp_code == ICMP_UNREACH_NET) ||
 187             (icmp_code == ICMP_UNREACH_HOST) ||
 188             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 189             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 190             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 191             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 192             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 193             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 194                 /* Mark the net unreachable. */
 195                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 196                         /* OK, that destination is NOT reachable. */
 197                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 198                         net->dest_state &= ~SCTP_ADDR_PF;
 199                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 200                             stcb, 0,
 201                             (void *)net, SCTP_SO_NOT_LOCKED);
 202                 }
 203                 SCTP_TCB_UNLOCK(stcb);
 204         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 205             (icmp_code == ICMP_UNREACH_PORT)) {
 206                 /* Treat it like an ABORT. */
 207                 sctp_abort_notification(stcb, true, false, 0, NULL, SCTP_SO_NOT_LOCKED);
 208                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 209                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 210                 /* no need to unlock here, since the TCB is gone */
 211         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 212                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 213                         SCTP_TCB_UNLOCK(stcb);
 214                         return;
 215                 }
 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->port) {
 235                         next_mtu -= sizeof(struct udphdr);
 236                 }
 237                 if (net->mtu > next_mtu) {
 238                         net->mtu = next_mtu;
 239                         if (net->port) {
 240                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 241                         } else {
 242                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 243                         }
 244                 }
 245                 /* Update the association MTU */
 246                 if (stcb->asoc.smallest_mtu > next_mtu) {
 247                         sctp_pathmtu_adjustment(stcb, next_mtu, true);
 248                 }
 249                 /* Finally, start the PMTU timer if it was running before. */
 250                 if (timer_stopped) {
 251                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 252                 }
 253                 SCTP_TCB_UNLOCK(stcb);
 254         } else {
 255                 SCTP_TCB_UNLOCK(stcb);
 256         }
 257 }
 258
 259 void
 260 sctp_ctlinput(struct icmp *icmp)
 261 {
 262         struct ip *inner_ip, *outer_ip;
 263         struct sctphdr *sh;
 264         struct sctp_inpcb *inp;
 265         struct sctp_tcb *stcb;
 266         struct sctp_nets *net;
 267         struct sctp_init_chunk *ch;
 268         struct sockaddr_in src, dst;
 269
 270         if (icmp_errmap(icmp) == 0)
 271                 return;
 272
 273         outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 274         inner_ip = &icmp->icmp_ip;
 275         sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 276         memset(&src, 0, sizeof(struct sockaddr_in));
 277         src.sin_family = AF_INET;
 278         src.sin_len = sizeof(struct sockaddr_in);
 279         src.sin_port = sh->src_port;
 280         src.sin_addr = inner_ip->ip_src;
 281         memset(&dst, 0, sizeof(struct sockaddr_in));
 282         dst.sin_family = AF_INET;
 283         dst.sin_len = sizeof(struct sockaddr_in);
 284         dst.sin_port = sh->dest_port;
 285         dst.sin_addr = inner_ip->ip_dst;
 286         /*
 287          * 'dst' holds the dest of the packet that failed to be sent. 'src'
 288          * holds our local endpoint address. Thus we reverse the dst and the
 289          * src in the lookup.
 290          */
 291         inp = NULL;
 292         net = NULL;
 293         stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 294             (struct sockaddr *)&src,
 295             &inp, &net, 1,
 296             SCTP_DEFAULT_VRFID);
 297         if ((stcb != NULL) &&
 298             (net != NULL) &&
 299             (inp != NULL)) {
 300                 /* Check the verification tag */
 301                 if (ntohl(sh->v_tag) != 0) {
 302                         /*
 303                          * This must be the verification tag used for
 304                          * sending out packets. We don't consider packets
 305                          * reflecting the verification tag.
 306                          */
 307                         if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 308                                 SCTP_TCB_UNLOCK(stcb);
 309                                 return;
 310                         }
 311                 } else {
 312                         if (ntohs(outer_ip->ip_len) >=
 313                             sizeof(struct ip) +
 314                             8 + (inner_ip->ip_hl << 2) + 20) {
 315                                 /*
 316                                  * In this case we can check if we got an
 317                                  * INIT chunk and if the initiate tag
 318                                  * matches.
 319                                  */
 320                                 ch = (struct sctp_init_chunk *)(sh + 1);
 321                                 if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 322                                     (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 323                                         SCTP_TCB_UNLOCK(stcb);
 324                                         return;
 325                                 }
 326                         } else {
 327                                 SCTP_TCB_UNLOCK(stcb);
 328                                 return;
 329                         }
 330                 }
 331                 sctp_notify(inp, stcb, net,
 332                     icmp->icmp_type,
 333                     icmp->icmp_code,
 334                     ntohs(inner_ip->ip_len),
 335                     (uint32_t)ntohs(icmp->icmp_nextmtu));
 336         } else {
 337                 if ((stcb == NULL) && (inp != NULL)) {
 338                         /* reduce ref-count */
 339                         SCTP_INP_WLOCK(inp);
 340                         SCTP_INP_DECR_REF(inp);
 341                         SCTP_INP_WUNLOCK(inp);
 342                 }
 343                 if (stcb) {
 344                         SCTP_TCB_UNLOCK(stcb);
 345                 }
 346         }
 347 }
 348 #endif
 349
 350 static int
 351 sctp_getcred(SYSCTL_HANDLER_ARGS)
 352 {
 353         struct xucred xuc;
 354         struct sockaddr_in addrs[2];
 355         struct sctp_inpcb *inp;
 356         struct sctp_nets *net;
 357         struct sctp_tcb *stcb;
 358         int error;
 359         uint32_t vrf_id;
 360
 361         /* FIX, for non-bsd is this right? */
 362         vrf_id = SCTP_DEFAULT_VRFID;
 363
 364         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 365
 366         if (error)
 367                 return (error);
 368
 369         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 370         if (error)
 371                 return (error);
 372
 373         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 374             sintosa(&addrs[0]),
 375             &inp, &net, 1, vrf_id);
 376         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 377                 if ((inp != NULL) && (stcb == NULL)) {
 378                         /* reduce ref-count */
 379                         SCTP_INP_WLOCK(inp);
 380                         SCTP_INP_DECR_REF(inp);
 381                         goto cred_can_cont;
 382                 }
 383
 384                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 385                 error = ENOENT;
 386                 goto out;
 387         }
 388         SCTP_TCB_UNLOCK(stcb);
 389         /*
 390          * We use the write lock here, only since in the error leg we need
 391          * it. If we used RLOCK, then we would have to
 392          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 393          * Better to use higher wlock.
 394          */
 395         SCTP_INP_WLOCK(inp);
 396 cred_can_cont:
 397         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 398         if (error) {
 399                 SCTP_INP_WUNLOCK(inp);
 400                 goto out;
 401         }
 402         cru2x(inp->sctp_socket->so_cred, &xuc);
 403         SCTP_INP_WUNLOCK(inp);
 404         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 405 out:
 406         return (error);
 407 }
 408
 409 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred,
 410     CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 411     0, 0, sctp_getcred, "S,ucred",
 412     "Get the ucred of a SCTP connection");
 413
 414 void
 415 sctp_abort(struct socket *so)
 416 {
 417         struct epoch_tracker et;
 418         struct sctp_inpcb *inp;
 419
 420         inp = (struct sctp_inpcb *)so->so_pcb;
 421         if (inp == NULL) {
 422                 return;
 423         }
 424
 425         SCTP_INP_WLOCK(inp);
 426         NET_EPOCH_ENTER(et);
 427 #ifdef SCTP_LOG_CLOSING
 428         sctp_log_closing(inp, NULL, 17);
 429 #endif
 430         if (((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0)) {
 431                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 432 #ifdef SCTP_LOG_CLOSING
 433                 sctp_log_closing(inp, NULL, 16);
 434 #endif
 435                 SCTP_INP_WUNLOCK(inp);
 436                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 437                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 438                 SOCK_LOCK(so);
 439                 KASSERT(!SOLISTENING(so),
 440                     ("sctp_abort: called on listening socket %p", so));
 441                 SCTP_SB_CLEAR(so->so_snd);
 442                 SCTP_SB_CLEAR(so->so_rcv);
 443                 /* Now null out the reference, we are completely detached. */
 444                 so->so_pcb = NULL;
 445                 SOCK_UNLOCK(so);
 446         } else {
 447                 SCTP_INP_WUNLOCK(inp);
 448         }
 449         NET_EPOCH_EXIT(et);
 450 }
 451
 452 #ifdef INET
 453 static int
 454 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 455 {
 456         struct sctp_inpcb *inp;
 457         struct inpcb *ip_inp;
 458         int error;
 459         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 460
 461         inp = (struct sctp_inpcb *)so->so_pcb;
 462         if (inp != NULL) {
 463                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 464                 return (EINVAL);
 465         }
 466         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 467                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 468                 if (error) {
 469                         return (error);
 470                 }
 471         }
 472         error = sctp_inpcb_alloc(so, vrf_id);
 473         if (error) {
 474                 return (error);
 475         }
 476         inp = (struct sctp_inpcb *)so->so_pcb;
 477         SCTP_INP_WLOCK(inp);
 478         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 479         ip_inp = &inp->ip_inp.inp;
 480         ip_inp->inp_vflag |= INP_IPV4;
 481         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 482         SCTP_INP_WUNLOCK(inp);
 483         return (0);
 484 }
 485
 486 static int
 487 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 488 {
 489         struct sctp_inpcb *inp;
 490
 491         inp = (struct sctp_inpcb *)so->so_pcb;
 492         if (inp == NULL) {
 493                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 494                 return (EINVAL);
 495         }
 496         if (addr != NULL) {
 497                 if ((addr->sa_family != AF_INET) ||
 498                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 499                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 500                         return (EINVAL);
 501                 }
 502         }
 503         return (sctp_inpcb_bind(so, addr, NULL, p));
 504 }
 505
 506 #endif
 507 void
 508 sctp_close(struct socket *so)
 509 {
 510         struct epoch_tracker et;
 511         struct sctp_inpcb *inp;
 512
 513         inp = (struct sctp_inpcb *)so->so_pcb;
 514         if (inp == NULL)
 515                 return;
 516
 517         /*
 518          * Inform all the lower layer assoc that we are done.
 519          */
 520         SCTP_INP_WLOCK(inp);
 521         NET_EPOCH_ENTER(et);
 522 #ifdef SCTP_LOG_CLOSING
 523         sctp_log_closing(inp, NULL, 17);
 524 #endif
 525         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 526                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 527                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 528                     (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
 529 #ifdef SCTP_LOG_CLOSING
 530                         sctp_log_closing(inp, NULL, 13);
 531 #endif
 532                         SCTP_INP_WUNLOCK(inp);
 533                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 534                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 535                 } else {
 536 #ifdef SCTP_LOG_CLOSING
 537                         sctp_log_closing(inp, NULL, 14);
 538 #endif
 539                         SCTP_INP_WUNLOCK(inp);
 540                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 541                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 542                 }
 543                 /*
 544                  * The socket is now detached, no matter what the state of
 545                  * the SCTP association.
 546                  */
 547                 SOCK_LOCK(so);
 548                 if (!SOLISTENING(so)) {
 549                         SCTP_SB_CLEAR(so->so_snd);
 550                         SCTP_SB_CLEAR(so->so_rcv);
 551                 }
 552                 /* Now null out the reference, we are completely detached. */
 553                 so->so_pcb = NULL;
 554                 SOCK_UNLOCK(so);
 555         } else {
 556                 SCTP_INP_WUNLOCK(inp);
 557         }
 558         NET_EPOCH_EXIT(et);
 559 }
 560
 561 int
 562 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 563     struct mbuf *control, struct thread *p);
 564
 565 int
 566 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 567     struct mbuf *control, struct thread *p)
 568 {
 569         struct sctp_inpcb *inp;
 570         int error;
 571
 572         inp = (struct sctp_inpcb *)so->so_pcb;
 573         if (inp == NULL) {
 574                 if (control) {
 575                         sctp_m_freem(control);
 576                         control = NULL;
 577                 }
 578                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 579                 sctp_m_freem(m);
 580                 return (EINVAL);
 581         }
 582         /* Got to have an to address if we are NOT a connected socket */
 583         if ((addr == NULL) &&
 584             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 585             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 586                 goto connected_type;
 587         }
 588
 589         error = 0;
 590         if (addr == NULL) {
 591                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 592                 error = EDESTADDRREQ;
 593         } else if (addr->sa_family != AF_INET) {
 594                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 595                 error = EAFNOSUPPORT;
 596         } else if (addr->sa_len != sizeof(struct sockaddr_in)) {
 597                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 598                 error = EINVAL;
 599         }
 600         if (error != 0) {
 601                 sctp_m_freem(m);
 602                 if (control) {
 603                         sctp_m_freem(control);
 604                         control = NULL;
 605                 }
 606                 return (error);
 607         }
 608 connected_type:
 609         /* now what about control */
 610         if (control) {
 611                 if (inp->control) {
 612                         sctp_m_freem(inp->control);
 613                         inp->control = NULL;
 614                 }
 615                 inp->control = control;
 616         }
 617         /* Place the data */
 618         if (inp->pkt) {
 619                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 620                 inp->pkt_last = m;
 621         } else {
 622                 inp->pkt_last = inp->pkt = m;
 623         }
 624         if (
 625         /* FreeBSD uses a flag passed */
 626             ((flags & PRUS_MORETOCOME) == 0)
 627             ) {
 628                 /*
 629                  * note with the current version this code will only be used
 630                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 631                  * re-defining sosend to use the sctp_sosend. One can
 632                  * optionally switch back to this code (by changing back the
 633                  * definitions) but this is not advisable. This code is used
 634                  * by FreeBSD when sending a file with sendfile() though.
 635                  */
 636                 struct epoch_tracker et;
 637                 int ret;
 638
 639                 NET_EPOCH_ENTER(et);
 640                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 641                 NET_EPOCH_EXIT(et);
 642                 inp->pkt = NULL;
 643                 inp->control = NULL;
 644                 return (ret);
 645         } else {
 646                 return (0);
 647         }
 648 }
 649
 650 int
 651 sctp_disconnect(struct socket *so)
 652 {
 653         struct epoch_tracker et;
 654         struct sctp_inpcb *inp;
 655         struct sctp_association *asoc;
 656         struct sctp_tcb *stcb;
 657
 658         inp = (struct sctp_inpcb *)so->so_pcb;
 659         if (inp == NULL) {
 660                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 661                 return (ENOTCONN);
 662         }
 663         SCTP_INP_RLOCK(inp);
 664         KASSERT(inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE ||
 665             inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL,
 666             ("Not a one-to-one style socket"));
 667         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 668         if (stcb == NULL) {
 669                 SCTP_INP_RUNLOCK(inp);
 670                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 671                 return (ENOTCONN);
 672         }
 673         SCTP_TCB_LOCK(stcb);
 674         asoc = &stcb->asoc;
 675         if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 676                 /* We are about to be freed, out of here */
 677                 SCTP_TCB_UNLOCK(stcb);
 678                 SCTP_INP_RUNLOCK(inp);
 679                 return (0);
 680         }
 681         NET_EPOCH_ENTER(et);
 682         if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 683             (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
 684                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 685                         /* Left with Data unread */
 686                         struct mbuf *op_err;
 687
 688                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 689                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 690                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 691                 }
 692                 SCTP_INP_RUNLOCK(inp);
 693                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 694                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 695                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 696                 }
 697                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 698                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 699                 /* No unlock tcb assoc is gone */
 700                 NET_EPOCH_EXIT(et);
 701                 return (0);
 702         }
 703         if (TAILQ_EMPTY(&asoc->send_queue) &&
 704             TAILQ_EMPTY(&asoc->sent_queue) &&
 705             (asoc->stream_queue_cnt == 0)) {
 706                 /* there is nothing queued to send, so done */
 707                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 708                         goto abort_anyway;
 709                 }
 710                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 711                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 712                         /* only send SHUTDOWN 1st time thru */
 713                         struct sctp_nets *netp;
 714
 715                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 716                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 717                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 718                         }
 719                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 720                         sctp_stop_timers_for_shutdown(stcb);
 721                         if (stcb->asoc.alternate) {
 722                                 netp = stcb->asoc.alternate;
 723                         } else {
 724                                 netp = stcb->asoc.primary_destination;
 725                         }
 726                         sctp_send_shutdown(stcb, netp);
 727                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 728                             stcb->sctp_ep, stcb, netp);
 729                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 730                             stcb->sctp_ep, stcb, NULL);
 731                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 732                 }
 733         } else {
 734                 /*
 735                  * we still got (or just got) data to send, so set
 736                  * SHUTDOWN_PENDING
 737                  */
 738                 /*
 739                  * XXX sockets draft says that SCTP_EOF should be sent with
 740                  * no data. currently, we will allow user data to be sent
 741                  * first and move to SHUTDOWN-PENDING
 742                  */
 743                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 744                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 745                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 746                 }
 747                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 748                     TAILQ_EMPTY(&asoc->sent_queue) &&
 749                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 750                         struct mbuf *op_err;
 751
 752         abort_anyway:
 753                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 754                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 755                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 756                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 757                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 758                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 759                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 760                         }
 761                         SCTP_INP_RUNLOCK(inp);
 762                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 763                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 764                         NET_EPOCH_EXIT(et);
 765                         return (0);
 766                 } else {
 767                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 768                 }
 769         }
 770         soisdisconnecting(so);
 771         NET_EPOCH_EXIT(et);
 772         SCTP_TCB_UNLOCK(stcb);
 773         SCTP_INP_RUNLOCK(inp);
 774         return (0);
 775 }
 776
 777 int
 778 sctp_shutdown(struct socket *so, enum shutdown_how how)
 779 {
 780         struct sctp_inpcb *inp = (struct sctp_inpcb *)so->so_pcb;
 781         struct epoch_tracker et;
 782         struct sctp_tcb *stcb;
 783         struct sctp_association *asoc;
 784         struct sctp_nets *netp;
 785         struct sctp_queued_to_read *control, *ncontrol;
 786         struct mbuf *m, *op_err;
 787         bool need_to_abort = false;
 788         int error = 0;
 789
 790         MPASS(inp);
 791
 792         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 793             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)))
 794                 return (EOPNOTSUPP);
 795
 796         SOCK_LOCK(so);
 797         if (SOLISTENING(so)) {
 798                 if (how != SHUT_WR) {
 799                         so->so_error = ECONNABORTED;
 800                         solisten_wakeup(so);    /* unlocks so */
 801                 } else
 802                         SOCK_UNLOCK(so);
 803                 return (ENOTCONN);
 804         } else if ((so->so_state &
 805             (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 806                 SOCK_UNLOCK(so);
 807                 return (ENOTCONN);
 808         }
 809         SOCK_UNLOCK(so);
 810
 811         /*
 812          * For 1-to-1 style sockets, flush the read queue and trigger an
 813          * ungraceful shutdown of the association, if and only if user
 814          * messages are lost. Loosing notifications does not need to be
 815          * signalled to the peer.
 816          */
 817         switch (how) {
 818         case SHUT_RD:
 819         case SHUT_RDWR:
 820                 SCTP_INP_WLOCK(inp);
 821                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 822                 if (stcb != NULL) {
 823                         SCTP_TCB_LOCK(stcb);
 824                 }
 825                 SCTP_INP_READ_LOCK(inp);
 826                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 827                 SOCK_LOCK(so);
 828                 TAILQ_FOREACH_SAFE(control, &inp->read_queue, next, ncontrol) {
 829                         if ((control->spec_flags & M_NOTIFICATION) == 0) {
 830                                 need_to_abort = true;
 831                         }
 832                         TAILQ_REMOVE(&inp->read_queue, control, next);
 833                         control->on_read_q = 0;
 834                         for (m = control->data; m; m = SCTP_BUF_NEXT(m)) {
 835                                 sctp_sbfree(control, control->stcb,
 836                                     &so->so_rcv, m);
 837                         }
 838                         if (control->on_strm_q == 0) {
 839                                 sctp_free_remote_addr(control->whoFrom);
 840                                 if (control->data) {
 841                                         sctp_m_freem(control->data);
 842                                         control->data = NULL;
 843                                 }
 844                                 sctp_free_a_readq(stcb, control);
 845                         } else {
 846                                 stcb->asoc.size_on_all_streams +=
 847                                     control->length;
 848                         }
 849                 }
 850                 SOCK_UNLOCK(so);
 851                 SCTP_INP_READ_UNLOCK(inp);
 852                 if (need_to_abort && (stcb != NULL)) {
 853                         inp->last_abort_code = SCTP_FROM_SCTP_USRREQ +
 854                             SCTP_LOC_6;
 855                         SCTP_INP_WUNLOCK(inp);
 856                         op_err = sctp_generate_cause(SCTP_CAUSE_OUT_OF_RESC,
 857                             "");
 858                         NET_EPOCH_ENTER(et);
 859                         sctp_abort_an_association(inp, stcb, op_err, false,
 860                             SCTP_SO_LOCKED);
 861                         NET_EPOCH_EXIT(et);
 862
 863                         error = ECONNABORTED;
 864                         goto out;
 865                 }
 866                 if (stcb != NULL) {
 867                         SCTP_TCB_UNLOCK(stcb);
 868                 }
 869                 SCTP_INP_WUNLOCK(inp);
 870                 /*
 871                  * XXXGL: does SCTP need sorflush()? This is what old
 872                  * soshutdown() used to do for all kinds of sockets.
 873                  */
 874                 sorflush(so);
 875                 if (how == SHUT_RD)
 876                         break;
 877                 /* FALLTHROUGH */
 878
 879         case SHUT_WR:
 880                 SCTP_INP_RLOCK(inp);
 881                 socantsendmore(so);
 882                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 883                 if (stcb == NULL) {
 884                         /*
 885                          * Ok, we hit the case that the shutdown call was
 886                          * made after an abort or something. Nothing to do
 887                          * now.
 888                          */
 889                         SCTP_INP_RUNLOCK(inp);
 890                         goto out;
 891                 }
 892                 SCTP_TCB_LOCK(stcb);
 893                 asoc = &stcb->asoc;
 894                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 895                         SCTP_TCB_UNLOCK(stcb);
 896                         SCTP_INP_RUNLOCK(inp);
 897                         goto out;
 898                 }
 899                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 900                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 901                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 902                         /*
 903                          * If we are not in or before ESTABLISHED, there is
 904                          * no protocol action required.
 905                          */
 906                         SCTP_TCB_UNLOCK(stcb);
 907                         SCTP_INP_RUNLOCK(inp);
 908                         goto out;
 909                 }
 910                 NET_EPOCH_ENTER(et);
 911                 if (stcb->asoc.alternate) {
 912                         netp = stcb->asoc.alternate;
 913                 } else {
 914                         netp = stcb->asoc.primary_destination;
 915                 }
 916                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 917                     TAILQ_EMPTY(&asoc->send_queue) &&
 918                     TAILQ_EMPTY(&asoc->sent_queue) &&
 919                     (asoc->stream_queue_cnt == 0)) {
 920                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 921                                 goto abort_anyway;
 922                         }
 923                         /* there is nothing queued to send, so I'm done... */
 924                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 925                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 926                         sctp_stop_timers_for_shutdown(stcb);
 927                         sctp_send_shutdown(stcb, netp);
 928                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 929                             stcb->sctp_ep, stcb, netp);
 930                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 931                             stcb->sctp_ep, stcb, NULL);
 932                 } else {
 933                         /*
 934                          * We still got (or just got) data to send, so set
 935                          * SHUTDOWN_PENDING.
 936                          */
 937                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 938                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 939                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 940                         }
 941                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 942                             TAILQ_EMPTY(&asoc->sent_queue) &&
 943                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 944                                 struct mbuf *op_err;
 945
 946                 abort_anyway:
 947                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 948                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 949                                 SCTP_INP_RUNLOCK(inp);
 950                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 951                                     op_err, false, SCTP_SO_LOCKED);
 952                                 NET_EPOCH_EXIT(et);
 953                                 goto out;
 954                         }
 955                 }
 956                 /*
 957                  * XXX: Why do this in the case where we have still data
 958                  * queued?
 959                  */
 960                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 961                 SCTP_TCB_UNLOCK(stcb);
 962                 SCTP_INP_RUNLOCK(inp);
 963                 NET_EPOCH_EXIT(et);
 964         }
 965 out:
 966         wakeup(&so->so_timeo);
 967
 968         return (error);
 969 }
 970
 971 /*
 972  * copies a "user" presentable address and removes embedded scope, etc.
 973  * returns 0 on success, 1 on error
 974  */
 975 static uint32_t
 976 sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
 977 {
 978 #ifdef INET6
 979         struct sockaddr_in6 lsa6;
 980
 981         src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
 982             &lsa6);
 983 #endif
 984         memcpy(dst, src, src->sa_len);
 985         return (0);
 986 }
 987
 988 static size_t
 989 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 990     struct sctp_tcb *stcb,
 991     size_t limit,
 992     struct sockaddr *addr,
 993     uint32_t vrf_id)
 994 {
 995         struct sctp_ifn *sctp_ifn;
 996         struct sctp_ifa *sctp_ifa;
 997         size_t actual;
 998         int loopback_scope;
 999 #if defined(INET)
1000         int ipv4_local_scope, ipv4_addr_legal;
1001 #endif
1002 #if defined(INET6)
1003         int local_scope, site_scope, ipv6_addr_legal;
1004 #endif
1005         struct sctp_vrf *vrf;
1006
1007         SCTP_IPI_ADDR_LOCK_ASSERT();
1008         actual = 0;
1009         if (limit == 0)
1010                 return (actual);
1011
1012         if (stcb) {
1013                 /* Turn on all the appropriate scope */
1014                 loopback_scope = stcb->asoc.scope.loopback_scope;
1015 #if defined(INET)
1016                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1017                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1018 #endif
1019 #if defined(INET6)
1020                 local_scope = stcb->asoc.scope.local_scope;
1021                 site_scope = stcb->asoc.scope.site_scope;
1022                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1023 #endif
1024         } else {
1025                 /* Use generic values for endpoints. */
1026                 loopback_scope = 1;
1027 #if defined(INET)
1028                 ipv4_local_scope = 1;
1029 #endif
1030 #if defined(INET6)
1031                 local_scope = 1;
1032                 site_scope = 1;
1033 #endif
1034                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1035 #if defined(INET6)
1036                         ipv6_addr_legal = 1;
1037 #endif
1038 #if defined(INET)
1039                         if (SCTP_IPV6_V6ONLY(inp)) {
1040                                 ipv4_addr_legal = 0;
1041                         } else {
1042                                 ipv4_addr_legal = 1;
1043                         }
1044 #endif
1045                 } else {
1046 #if defined(INET6)
1047                         ipv6_addr_legal = 0;
1048 #endif
1049 #if defined(INET)
1050                         ipv4_addr_legal = 1;
1051 #endif
1052                 }
1053         }
1054         vrf = sctp_find_vrf(vrf_id);
1055         if (vrf == NULL) {
1056                 return (0);
1057         }
1058         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1059                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1060                         if ((loopback_scope == 0) &&
1061                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1062                                 /* Skip loopback if loopback_scope not set */
1063                                 continue;
1064                         }
1065                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1066                                 if (stcb) {
1067                                         /*
1068                                          * For the BOUND-ALL case, the list
1069                                          * associated with a TCB is Always
1070                                          * considered a reverse list.. i.e.
1071                                          * it lists addresses that are NOT
1072                                          * part of the association. If this
1073                                          * is one of those we must skip it.
1074                                          */
1075                                         if (sctp_is_addr_restricted(stcb,
1076                                             sctp_ifa)) {
1077                                                 continue;
1078                                         }
1079                                 }
1080                                 switch (sctp_ifa->address.sa.sa_family) {
1081 #ifdef INET
1082                                 case AF_INET:
1083                                         if (ipv4_addr_legal) {
1084                                                 struct sockaddr_in *sin;
1085
1086                                                 sin = &sctp_ifa->address.sin;
1087                                                 if (sin->sin_addr.s_addr == 0) {
1088                                                         /*
1089                                                          * we skip
1090                                                          * unspecified
1091                                                          * addresses
1092                                                          */
1093                                                         continue;
1094                                                 }
1095                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1096                                                     &sin->sin_addr) != 0) {
1097                                                         continue;
1098                                                 }
1099                                                 if ((ipv4_local_scope == 0) &&
1100                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1101                                                         continue;
1102                                                 }
1103 #ifdef INET6
1104                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1105                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1106                                                                 return (actual);
1107                                                         }
1108                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
1109                                                         ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1110                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1111                                                         actual += sizeof(struct sockaddr_in6);
1112                                                 } else {
1113 #endif
1114                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1115                                                                 return (actual);
1116                                                         }
1117                                                         memcpy(addr, sin, sizeof(struct sockaddr_in));
1118                                                         ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1119                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
1120                                                         actual += sizeof(struct sockaddr_in);
1121 #ifdef INET6
1122                                                 }
1123 #endif
1124                                         } else {
1125                                                 continue;
1126                                         }
1127                                         break;
1128 #endif
1129 #ifdef INET6
1130                                 case AF_INET6:
1131                                         if (ipv6_addr_legal) {
1132                                                 struct sockaddr_in6 *sin6;
1133
1134                                                 sin6 = &sctp_ifa->address.sin6;
1135                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1136                                                         /*
1137                                                          * we skip
1138                                                          * unspecified
1139                                                          * addresses
1140                                                          */
1141                                                         continue;
1142                                                 }
1143                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1144                                                     &sin6->sin6_addr) != 0) {
1145                                                         continue;
1146                                                 }
1147                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1148                                                         if (local_scope == 0)
1149                                                                 continue;
1150                                                         if (sin6->sin6_scope_id == 0) {
1151                                                                 if (sa6_recoverscope(sin6) != 0)
1152                                                                         /*
1153                                                                          *
1154                                                                          * bad
1155                                                                          * link
1156                                                                          *
1157                                                                          * local
1158                                                                          *
1159                                                                          * address
1160                                                                          */
1161                                                                         continue;
1162                                                         }
1163                                                 }
1164                                                 if ((site_scope == 0) &&
1165                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1166                                                         continue;
1167                                                 }
1168                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1169                                                         return (actual);
1170                                                 }
1171                                                 memcpy(addr, sin6, sizeof(struct sockaddr_in6));
1172                                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1173                                                 addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1174                                                 actual += sizeof(struct sockaddr_in6);
1175                                         } else {
1176                                                 continue;
1177                                         }
1178                                         break;
1179 #endif
1180                                 default:
1181                                         /* TSNH */
1182                                         break;
1183                                 }
1184                         }
1185                 }
1186         } else {
1187                 struct sctp_laddr *laddr;
1188                 size_t sa_len;
1189
1190                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1191                         if (stcb) {
1192                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1193                                         continue;
1194                                 }
1195                         }
1196                         sa_len = laddr->ifa->address.sa.sa_len;
1197                         if (actual + sa_len > limit) {
1198                                 return (actual);
1199                         }
1200                         if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
1201                                 continue;
1202                         switch (laddr->ifa->address.sa.sa_family) {
1203 #ifdef INET
1204                         case AF_INET:
1205                                 ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1206                                 break;
1207 #endif
1208 #ifdef INET6
1209                         case AF_INET6:
1210                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1211                                 break;
1212 #endif
1213                         default:
1214                                 /* TSNH */
1215                                 break;
1216                         }
1217                         addr = (struct sockaddr *)((caddr_t)addr + sa_len);
1218                         actual += sa_len;
1219                 }
1220         }
1221         return (actual);
1222 }
1223
1224 static size_t
1225 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1226     struct sctp_tcb *stcb,
1227     size_t limit,
1228     struct sockaddr *addr)
1229 {
1230         size_t size;
1231
1232         SCTP_IPI_ADDR_RLOCK();
1233         /* fill up addresses for the endpoint's default vrf */
1234         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
1235             inp->def_vrf_id);
1236         SCTP_IPI_ADDR_RUNLOCK();
1237         return (size);
1238 }
1239
1240 static size_t
1241 sctp_max_size_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1242 {
1243         struct sctp_vrf *vrf;
1244         size_t size;
1245
1246         /*
1247          * In both sub-set bound an bound_all cases we return the size of
1248          * the maximum number of addresses that you could get. In reality
1249          * the sub-set bound may have an exclusion list for a given TCB or
1250          * in the bound-all case a TCB may NOT include the loopback or other
1251          * addresses as well.
1252          */
1253         SCTP_IPI_ADDR_LOCK_ASSERT();
1254         vrf = sctp_find_vrf(vrf_id);
1255         if (vrf == NULL) {
1256                 return (0);
1257         }
1258         size = 0;
1259         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1260                 struct sctp_ifn *sctp_ifn;
1261                 struct sctp_ifa *sctp_ifa;
1262
1263                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1264                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1265                                 /* Count them if they are the right type */
1266                                 switch (sctp_ifa->address.sa.sa_family) {
1267 #ifdef INET
1268                                 case AF_INET:
1269 #ifdef INET6
1270                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1271                                                 size += sizeof(struct sockaddr_in6);
1272                                         else
1273                                                 size += sizeof(struct sockaddr_in);
1274 #else
1275                                         size += sizeof(struct sockaddr_in);
1276 #endif
1277                                         break;
1278 #endif
1279 #ifdef INET6
1280                                 case AF_INET6:
1281                                         size += sizeof(struct sockaddr_in6);
1282                                         break;
1283 #endif
1284                                 default:
1285                                         break;
1286                                 }
1287                         }
1288                 }
1289         } else {
1290                 struct sctp_laddr *laddr;
1291
1292                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1293                         switch (laddr->ifa->address.sa.sa_family) {
1294 #ifdef INET
1295                         case AF_INET:
1296 #ifdef INET6
1297                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1298                                         size += sizeof(struct sockaddr_in6);
1299                                 else
1300                                         size += sizeof(struct sockaddr_in);
1301 #else
1302                                 size += sizeof(struct sockaddr_in);
1303 #endif
1304                                 break;
1305 #endif
1306 #ifdef INET6
1307                         case AF_INET6:
1308                                 size += sizeof(struct sockaddr_in6);
1309                                 break;
1310 #endif
1311                         default:
1312                                 break;
1313                         }
1314                 }
1315         }
1316         return (size);
1317 }
1318
1319 static size_t
1320 sctp_max_size_addresses(struct sctp_inpcb *inp)
1321 {
1322         size_t size;
1323
1324         SCTP_IPI_ADDR_RLOCK();
1325         /* Maximum size of all addresses for the endpoint's default VRF */
1326         size = sctp_max_size_addresses_vrf(inp, inp->def_vrf_id);
1327         SCTP_IPI_ADDR_RUNLOCK();
1328         return (size);
1329 }
1330
1331 static int
1332 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1333     size_t optsize, void *p, int delay)
1334 {
1335         int error;
1336         int creat_lock_on = 0;
1337         struct sctp_tcb *stcb = NULL;
1338         struct sockaddr *sa;
1339         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1340         uint32_t vrf_id;
1341         sctp_assoc_t *a_id;
1342
1343         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1344
1345         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1346             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1347                 /* We are already connected AND the TCP model */
1348                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1349                 return (EADDRINUSE);
1350         }
1351
1352         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1353             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1354                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1355                 return (EINVAL);
1356         }
1357
1358         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1359                 SCTP_INP_RLOCK(inp);
1360                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1361                 SCTP_INP_RUNLOCK(inp);
1362         }
1363         if (stcb) {
1364                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1365                 return (EALREADY);
1366         }
1367         SCTP_INP_INCR_REF(inp);
1368         SCTP_ASOC_CREATE_LOCK(inp);
1369         creat_lock_on = 1;
1370         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1371             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1372                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1373                 error = EFAULT;
1374                 goto out_now;
1375         }
1376         totaddrp = (unsigned int *)optval;
1377         totaddr = *totaddrp;
1378         sa = (struct sockaddr *)(totaddrp + 1);
1379         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1380         if (error != 0) {
1381                 /* Already have or am bring up an association */
1382                 SCTP_ASOC_CREATE_UNLOCK(inp);
1383                 creat_lock_on = 0;
1384                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1385                 goto out_now;
1386         }
1387 #ifdef INET6
1388         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1389             (num_v6 > 0)) {
1390                 error = EINVAL;
1391                 goto out_now;
1392         }
1393         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1394             (num_v4 > 0)) {
1395                 if (SCTP_IPV6_V6ONLY(inp)) {
1396                         /*
1397                          * if IPV6_V6ONLY flag, ignore connections destined
1398                          * to a v4 addr or v4-mapped addr
1399                          */
1400                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1401                         error = EINVAL;
1402                         goto out_now;
1403                 }
1404         }
1405 #endif                          /* INET6 */
1406         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
1407                 /* Bind a ephemeral port */
1408                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1409                 if (error) {
1410                         goto out_now;
1411                 }
1412         }
1413
1414         /* FIX ME: do we want to pass in a vrf on the connect call? */
1415         vrf_id = inp->def_vrf_id;
1416
1417         /* We are GOOD to go */
1418         stcb = sctp_aloc_assoc_connected(inp, sa, &error, 0, 0, vrf_id,
1419             inp->sctp_ep.pre_open_stream_count,
1420             inp->sctp_ep.port,
1421             (struct thread *)p,
1422             SCTP_INITIALIZE_AUTH_PARAMS);
1423         if (stcb == NULL) {
1424                 /* Gak! no memory */
1425                 goto out_now;
1426         }
1427         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1428         /* move to second address */
1429         switch (sa->sa_family) {
1430 #ifdef INET
1431         case AF_INET:
1432                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1433                 break;
1434 #endif
1435 #ifdef INET6
1436         case AF_INET6:
1437                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1438                 break;
1439 #endif
1440         default:
1441                 break;
1442         }
1443
1444         error = 0;
1445         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1446         /* Fill in the return id */
1447         if (error) {
1448                 goto out_now;
1449         }
1450         a_id = (sctp_assoc_t *)optval;
1451         *a_id = sctp_get_associd(stcb);
1452
1453         if (delay) {
1454                 /* doing delayed connection */
1455                 stcb->asoc.delayed_connection = 1;
1456                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1457         } else {
1458                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1459                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1460         }
1461         SCTP_TCB_UNLOCK(stcb);
1462 out_now:
1463         if (creat_lock_on) {
1464                 SCTP_ASOC_CREATE_UNLOCK(inp);
1465         }
1466         SCTP_INP_DECR_REF(inp);
1467         return (error);
1468 }
1469
1470 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1471         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1472             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1473                 SCTP_INP_RLOCK(inp); \
1474                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1475                 if (stcb) { \
1476                         SCTP_TCB_LOCK(stcb); \
1477                 } \
1478                 SCTP_INP_RUNLOCK(inp); \
1479         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1480                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1481                 if (stcb == NULL) { \
1482                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1483                         error = ENOENT; \
1484                         break; \
1485                 } \
1486         } else { \
1487                 stcb = NULL; \
1488         } \
1489 }
1490
1491 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1492         if (size < sizeof(type)) { \
1493                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1494                 error = EINVAL; \
1495                 break; \
1496         } else { \
1497                 destp = (type *)srcp; \
1498         } \
1499 }
1500
1501 static int
1502 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1503     void *p)
1504 {
1505         struct sctp_inpcb *inp = NULL;
1506         int error, val = 0;
1507         struct sctp_tcb *stcb = NULL;
1508
1509         if (optval == NULL) {
1510                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1511                 return (EINVAL);
1512         }
1513
1514         inp = (struct sctp_inpcb *)so->so_pcb;
1515         if (inp == NULL) {
1516                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1517                 return EINVAL;
1518         }
1519         error = 0;
1520
1521         switch (optname) {
1522         case SCTP_NODELAY:
1523         case SCTP_AUTOCLOSE:
1524         case SCTP_EXPLICIT_EOR:
1525         case SCTP_AUTO_ASCONF:
1526         case SCTP_DISABLE_FRAGMENTS:
1527         case SCTP_I_WANT_MAPPED_V4_ADDR:
1528         case SCTP_USE_EXT_RCVINFO:
1529                 SCTP_INP_RLOCK(inp);
1530                 switch (optname) {
1531                 case SCTP_DISABLE_FRAGMENTS:
1532                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1533                         break;
1534                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1535                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1536                         break;
1537                 case SCTP_AUTO_ASCONF:
1538                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1539                                 /* only valid for bound all sockets */
1540                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1541                         } else {
1542                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1543                                 error = EINVAL;
1544                                 goto flags_out;
1545                         }
1546                         break;
1547                 case SCTP_EXPLICIT_EOR:
1548                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1549                         break;
1550                 case SCTP_NODELAY:
1551                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1552                         break;
1553                 case SCTP_USE_EXT_RCVINFO:
1554                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1555                         break;
1556                 case SCTP_AUTOCLOSE:
1557                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1558                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1559                         else
1560                                 val = 0;
1561                         break;
1562
1563                 default:
1564                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1565                         error = ENOPROTOOPT;
1566                 }               /* end switch (sopt->sopt_name) */
1567                 if (*optsize < sizeof(val)) {
1568                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1569                         error = EINVAL;
1570                 }
1571 flags_out:
1572                 SCTP_INP_RUNLOCK(inp);
1573                 if (error == 0) {
1574                         /* return the option value */
1575                         *(int *)optval = val;
1576                         *optsize = sizeof(val);
1577                 }
1578                 break;
1579         case SCTP_GET_PACKET_LOG:
1580                 {
1581 #ifdef  SCTP_PACKET_LOGGING
1582                         uint8_t *target;
1583                         int ret;
1584
1585                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1586                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1587                         *optsize = ret;
1588 #else
1589                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1590                         error = EOPNOTSUPP;
1591 #endif
1592                         break;
1593                 }
1594         case SCTP_REUSE_PORT:
1595                 {
1596                         uint32_t *value;
1597
1598                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1599                                 /* Can't do this for a 1-m socket */
1600                                 error = EINVAL;
1601                                 break;
1602                         }
1603                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1604                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1605                         *optsize = sizeof(uint32_t);
1606                         break;
1607                 }
1608         case SCTP_PARTIAL_DELIVERY_POINT:
1609                 {
1610                         uint32_t *value;
1611
1612                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1613                         *value = inp->partial_delivery_point;
1614                         *optsize = sizeof(uint32_t);
1615                         break;
1616                 }
1617         case SCTP_FRAGMENT_INTERLEAVE:
1618                 {
1619                         uint32_t *value;
1620
1621                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1622                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1623                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1624                                         *value = SCTP_FRAG_LEVEL_2;
1625                                 } else {
1626                                         *value = SCTP_FRAG_LEVEL_1;
1627                                 }
1628                         } else {
1629                                 *value = SCTP_FRAG_LEVEL_0;
1630                         }
1631                         *optsize = sizeof(uint32_t);
1632                         break;
1633                 }
1634         case SCTP_INTERLEAVING_SUPPORTED:
1635                 {
1636                         struct sctp_assoc_value *av;
1637
1638                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1639                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1640
1641                         if (stcb) {
1642                                 av->assoc_value = stcb->asoc.idata_supported;
1643                                 SCTP_TCB_UNLOCK(stcb);
1644                         } else {
1645                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1646                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1647                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1648                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1649                                         SCTP_INP_RLOCK(inp);
1650                                         if (inp->idata_supported) {
1651                                                 av->assoc_value = 1;
1652                                         } else {
1653                                                 av->assoc_value = 0;
1654                                         }
1655                                         SCTP_INP_RUNLOCK(inp);
1656                                 } else {
1657                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1658                                         error = EINVAL;
1659                                 }
1660                         }
1661                         if (error == 0) {
1662                                 *optsize = sizeof(struct sctp_assoc_value);
1663                         }
1664                         break;
1665                 }
1666         case SCTP_CMT_ON_OFF:
1667                 {
1668                         struct sctp_assoc_value *av;
1669
1670                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1671                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1672                         if (stcb) {
1673                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1674                                 SCTP_TCB_UNLOCK(stcb);
1675                         } else {
1676                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1677                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1678                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1679                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1680                                         SCTP_INP_RLOCK(inp);
1681                                         av->assoc_value = inp->sctp_cmt_on_off;
1682                                         SCTP_INP_RUNLOCK(inp);
1683                                 } else {
1684                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1685                                         error = EINVAL;
1686                                 }
1687                         }
1688                         if (error == 0) {
1689                                 *optsize = sizeof(struct sctp_assoc_value);
1690                         }
1691                         break;
1692                 }
1693         case SCTP_PLUGGABLE_CC:
1694                 {
1695                         struct sctp_assoc_value *av;
1696
1697                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1698                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1699                         if (stcb) {
1700                                 av->assoc_value = stcb->asoc.congestion_control_module;
1701                                 SCTP_TCB_UNLOCK(stcb);
1702                         } else {
1703                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1704                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1705                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1706                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1707                                         SCTP_INP_RLOCK(inp);
1708                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1709                                         SCTP_INP_RUNLOCK(inp);
1710                                 } else {
1711                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1712                                         error = EINVAL;
1713                                 }
1714                         }
1715                         if (error == 0) {
1716                                 *optsize = sizeof(struct sctp_assoc_value);
1717                         }
1718                         break;
1719                 }
1720         case SCTP_CC_OPTION:
1721                 {
1722                         struct sctp_cc_option *cc_opt;
1723
1724                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1725                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1726                         if (stcb == NULL) {
1727                                 error = EINVAL;
1728                         } else {
1729                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1730                                         error = ENOTSUP;
1731                                 } else {
1732                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1733                                         *optsize = sizeof(struct sctp_cc_option);
1734                                 }
1735                                 SCTP_TCB_UNLOCK(stcb);
1736                         }
1737                         break;
1738                 }
1739         case SCTP_STREAM_SCHEDULER:
1740                 {
1741                         struct sctp_assoc_value *av;
1742
1743                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1744                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1745                         if (stcb) {
1746                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1747                                 SCTP_TCB_UNLOCK(stcb);
1748                         } else {
1749                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1750                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1751                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1752                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1753                                         SCTP_INP_RLOCK(inp);
1754                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1755                                         SCTP_INP_RUNLOCK(inp);
1756                                 } else {
1757                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1758                                         error = EINVAL;
1759                                 }
1760                         }
1761                         if (error == 0) {
1762                                 *optsize = sizeof(struct sctp_assoc_value);
1763                         }
1764                         break;
1765                 }
1766         case SCTP_STREAM_SCHEDULER_VALUE:
1767                 {
1768                         struct sctp_stream_value *av;
1769
1770                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1771                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1772                         if (stcb) {
1773                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1774                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1775                                     &av->stream_value) < 0)) {
1776                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1777                                         error = EINVAL;
1778                                 } else {
1779                                         *optsize = sizeof(struct sctp_stream_value);
1780                                 }
1781                                 SCTP_TCB_UNLOCK(stcb);
1782                         } else {
1783                                 /*
1784                                  * Can't get stream value without
1785                                  * association
1786                                  */
1787                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1788                                 error = EINVAL;
1789                         }
1790                         break;
1791                 }
1792         case SCTP_GET_ADDR_LEN:
1793                 {
1794                         struct sctp_assoc_value *av;
1795
1796                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1797                         error = EINVAL;
1798 #ifdef INET
1799                         if (av->assoc_value == AF_INET) {
1800                                 av->assoc_value = sizeof(struct sockaddr_in);
1801                                 error = 0;
1802                         }
1803 #endif
1804 #ifdef INET6
1805                         if (av->assoc_value == AF_INET6) {
1806                                 av->assoc_value = sizeof(struct sockaddr_in6);
1807                                 error = 0;
1808                         }
1809 #endif
1810                         if (error) {
1811                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1812                         } else {
1813                                 *optsize = sizeof(struct sctp_assoc_value);
1814                         }
1815                         break;
1816                 }
1817         case SCTP_GET_ASSOC_NUMBER:
1818                 {
1819                         uint32_t *value, cnt;
1820
1821                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1822                         SCTP_INP_RLOCK(inp);
1823                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1824                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1825                                 /* Can't do this for a 1-1 socket */
1826                                 error = EINVAL;
1827                                 SCTP_INP_RUNLOCK(inp);
1828                                 break;
1829                         }
1830                         cnt = 0;
1831                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1832                                 cnt++;
1833                         }
1834                         SCTP_INP_RUNLOCK(inp);
1835                         *value = cnt;
1836                         *optsize = sizeof(uint32_t);
1837                         break;
1838                 }
1839         case SCTP_GET_ASSOC_ID_LIST:
1840                 {
1841                         struct sctp_assoc_ids *ids;
1842                         uint32_t at;
1843                         size_t limit;
1844
1845                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1846                         SCTP_INP_RLOCK(inp);
1847                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1848                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1849                                 /* Can't do this for a 1-1 socket */
1850                                 error = EINVAL;
1851                                 SCTP_INP_RUNLOCK(inp);
1852                                 break;
1853                         }
1854                         at = 0;
1855                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1856                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1857                                 if (at < limit) {
1858                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1859                                         if (at == 0) {
1860                                                 error = EINVAL;
1861                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1862                                                 break;
1863                                         }
1864                                 } else {
1865                                         error = EINVAL;
1866                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1867                                         break;
1868                                 }
1869                         }
1870                         SCTP_INP_RUNLOCK(inp);
1871                         if (error == 0) {
1872                                 ids->gaids_number_of_ids = at;
1873                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1874                         }
1875                         break;
1876                 }
1877         case SCTP_CONTEXT:
1878                 {
1879                         struct sctp_assoc_value *av;
1880
1881                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1882                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1883
1884                         if (stcb) {
1885                                 av->assoc_value = stcb->asoc.context;
1886                                 SCTP_TCB_UNLOCK(stcb);
1887                         } else {
1888                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1889                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1890                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1891                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1892                                         SCTP_INP_RLOCK(inp);
1893                                         av->assoc_value = inp->sctp_context;
1894                                         SCTP_INP_RUNLOCK(inp);
1895                                 } else {
1896                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1897                                         error = EINVAL;
1898                                 }
1899                         }
1900                         if (error == 0) {
1901                                 *optsize = sizeof(struct sctp_assoc_value);
1902                         }
1903                         break;
1904                 }
1905         case SCTP_VRF_ID:
1906                 {
1907                         uint32_t *default_vrfid;
1908
1909                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1910                         *default_vrfid = inp->def_vrf_id;
1911                         *optsize = sizeof(uint32_t);
1912                         break;
1913                 }
1914         case SCTP_GET_ASOC_VRF:
1915                 {
1916                         struct sctp_assoc_value *id;
1917
1918                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1919                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1920                         if (stcb == NULL) {
1921                                 error = EINVAL;
1922                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1923                         } else {
1924                                 id->assoc_value = stcb->asoc.vrf_id;
1925                                 SCTP_TCB_UNLOCK(stcb);
1926                                 *optsize = sizeof(struct sctp_assoc_value);
1927                         }
1928                         break;
1929                 }
1930         case SCTP_GET_VRF_IDS:
1931                 {
1932                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1933                         error = EOPNOTSUPP;
1934                         break;
1935                 }
1936         case SCTP_GET_NONCE_VALUES:
1937                 {
1938                         struct sctp_get_nonce_values *gnv;
1939
1940                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1941                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1942
1943                         if (stcb) {
1944                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1945                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1946                                 SCTP_TCB_UNLOCK(stcb);
1947                                 *optsize = sizeof(struct sctp_get_nonce_values);
1948                         } else {
1949                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1950                                 error = ENOTCONN;
1951                         }
1952                         break;
1953                 }
1954         case SCTP_DELAYED_SACK:
1955                 {
1956                         struct sctp_sack_info *sack;
1957
1958                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1959                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1960                         if (stcb) {
1961                                 sack->sack_delay = stcb->asoc.delayed_ack;
1962                                 sack->sack_freq = stcb->asoc.sack_freq;
1963                                 SCTP_TCB_UNLOCK(stcb);
1964                         } else {
1965                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1966                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1967                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1968                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
1969                                         SCTP_INP_RLOCK(inp);
1970                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1971                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1972                                         SCTP_INP_RUNLOCK(inp);
1973                                 } else {
1974                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1975                                         error = EINVAL;
1976                                 }
1977                         }
1978                         if (error == 0) {
1979                                 *optsize = sizeof(struct sctp_sack_info);
1980                         }
1981                         break;
1982                 }
1983         case SCTP_GET_SNDBUF_USE:
1984                 {
1985                         struct sctp_sockstat *ss;
1986
1987                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
1988                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
1989
1990                         if (stcb) {
1991                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
1992                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
1993                                     stcb->asoc.size_on_all_streams);
1994                                 SCTP_TCB_UNLOCK(stcb);
1995                                 *optsize = sizeof(struct sctp_sockstat);
1996                         } else {
1997                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1998                                 error = ENOTCONN;
1999                         }
2000                         break;
2001                 }
2002         case SCTP_MAX_BURST:
2003                 {
2004                         struct sctp_assoc_value *av;
2005
2006                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2007                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2008
2009                         if (stcb) {
2010                                 av->assoc_value = stcb->asoc.max_burst;
2011                                 SCTP_TCB_UNLOCK(stcb);
2012                         } else {
2013                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2014                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2015                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2016                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2017                                         SCTP_INP_RLOCK(inp);
2018                                         av->assoc_value = inp->sctp_ep.max_burst;
2019                                         SCTP_INP_RUNLOCK(inp);
2020                                 } else {
2021                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2022                                         error = EINVAL;
2023                                 }
2024                         }
2025                         if (error == 0) {
2026                                 *optsize = sizeof(struct sctp_assoc_value);
2027                         }
2028                         break;
2029                 }
2030         case SCTP_MAXSEG:
2031                 {
2032                         struct sctp_assoc_value *av;
2033
2034                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2035                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2036
2037                         if (stcb) {
2038                                 av->assoc_value = stcb->asoc.sctp_frag_point;
2039                                 SCTP_TCB_UNLOCK(stcb);
2040                         } else {
2041                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2042                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2043                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2044                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2045                                         SCTP_INP_RLOCK(inp);
2046                                         av->assoc_value = inp->sctp_frag_point;
2047                                         SCTP_INP_RUNLOCK(inp);
2048                                 } else {
2049                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2050                                         error = EINVAL;
2051                                 }
2052                         }
2053                         if (error == 0) {
2054                                 *optsize = sizeof(struct sctp_assoc_value);
2055                         }
2056                         break;
2057                 }
2058         case SCTP_GET_STAT_LOG:
2059                 error = sctp_fill_stat_log(optval, optsize);
2060                 break;
2061         case SCTP_EVENTS:
2062                 {
2063                         struct sctp_event_subscribe *events;
2064
2065                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2066                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2067                         SCTP_INP_RLOCK(inp);
2068                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2069                                 events->sctp_data_io_event = 1;
2070
2071                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2072                                 events->sctp_association_event = 1;
2073
2074                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2075                                 events->sctp_address_event = 1;
2076
2077                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2078                                 events->sctp_send_failure_event = 1;
2079
2080                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2081                                 events->sctp_peer_error_event = 1;
2082
2083                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2084                                 events->sctp_shutdown_event = 1;
2085
2086                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2087                                 events->sctp_partial_delivery_event = 1;
2088
2089                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2090                                 events->sctp_adaptation_layer_event = 1;
2091
2092                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2093                                 events->sctp_authentication_event = 1;
2094
2095                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2096                                 events->sctp_sender_dry_event = 1;
2097
2098                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2099                                 events->sctp_stream_reset_event = 1;
2100                         SCTP_INP_RUNLOCK(inp);
2101                         *optsize = sizeof(struct sctp_event_subscribe);
2102                         break;
2103                 }
2104         case SCTP_ADAPTATION_LAYER:
2105                 {
2106                         uint32_t *value;
2107
2108                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2109
2110                         SCTP_INP_RLOCK(inp);
2111                         *value = inp->sctp_ep.adaptation_layer_indicator;
2112                         SCTP_INP_RUNLOCK(inp);
2113                         *optsize = sizeof(uint32_t);
2114                         break;
2115                 }
2116         case SCTP_SET_INITIAL_DBG_SEQ:
2117                 {
2118                         uint32_t *value;
2119
2120                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2121                         SCTP_INP_RLOCK(inp);
2122                         *value = inp->sctp_ep.initial_sequence_debug;
2123                         SCTP_INP_RUNLOCK(inp);
2124                         *optsize = sizeof(uint32_t);
2125                         break;
2126                 }
2127         case SCTP_GET_LOCAL_ADDR_SIZE:
2128                 {
2129                         uint32_t *value;
2130
2131                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2132                         SCTP_INP_RLOCK(inp);
2133                         *value = (uint32_t)sctp_max_size_addresses(inp);
2134                         SCTP_INP_RUNLOCK(inp);
2135                         *optsize = sizeof(uint32_t);
2136                         break;
2137                 }
2138         case SCTP_GET_REMOTE_ADDR_SIZE:
2139                 {
2140                         uint32_t *value;
2141                         struct sctp_nets *net;
2142                         size_t size;
2143
2144                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2145                         /* FIXME MT: change to sctp_assoc_value? */
2146                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2147
2148                         if (stcb != NULL) {
2149                                 size = 0;
2150                                 /* Count the sizes */
2151                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2152                                         switch (net->ro._l_addr.sa.sa_family) {
2153 #ifdef INET
2154                                         case AF_INET:
2155 #ifdef INET6
2156                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2157                                                         size += sizeof(struct sockaddr_in6);
2158                                                 } else {
2159                                                         size += sizeof(struct sockaddr_in);
2160                                                 }
2161 #else
2162                                                 size += sizeof(struct sockaddr_in);
2163 #endif
2164                                                 break;
2165 #endif
2166 #ifdef INET6
2167                                         case AF_INET6:
2168                                                 size += sizeof(struct sockaddr_in6);
2169                                                 break;
2170 #endif
2171                                         default:
2172                                                 break;
2173                                         }
2174                                 }
2175                                 SCTP_TCB_UNLOCK(stcb);
2176                                 *value = (uint32_t)size;
2177                                 *optsize = sizeof(uint32_t);
2178                         } else {
2179                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2180                                     ((sctp_assoc_t)*value <= SCTP_ALL_ASSOC)) {
2181                                         error = EINVAL;
2182                                 } else {
2183                                         error = ENOENT;
2184                                 }
2185                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2186                         }
2187                         break;
2188                 }
2189         case SCTP_GET_PEER_ADDRESSES:
2190                 /*
2191                  * Get the address information, an array is passed in to
2192                  * fill up we pack it.
2193                  */
2194                 {
2195                         size_t cpsz, left;
2196                         struct sockaddr *addr;
2197                         struct sctp_nets *net;
2198                         struct sctp_getaddresses *saddr;
2199
2200                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2201                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2202
2203                         if (stcb != NULL) {
2204                                 left = *optsize - offsetof(struct sctp_getaddresses, addr);
2205                                 *optsize = offsetof(struct sctp_getaddresses, addr);
2206                                 addr = &saddr->addr[0].sa;
2207
2208                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2209                                         switch (net->ro._l_addr.sa.sa_family) {
2210 #ifdef INET
2211                                         case AF_INET:
2212 #ifdef INET6
2213                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2214                                                         cpsz = sizeof(struct sockaddr_in6);
2215                                                 } else {
2216                                                         cpsz = sizeof(struct sockaddr_in);
2217                                                 }
2218 #else
2219                                                 cpsz = sizeof(struct sockaddr_in);
2220 #endif
2221                                                 break;
2222 #endif
2223 #ifdef INET6
2224                                         case AF_INET6:
2225                                                 cpsz = sizeof(struct sockaddr_in6);
2226                                                 break;
2227 #endif
2228                                         default:
2229                                                 cpsz = 0;
2230                                                 break;
2231                                         }
2232                                         if (cpsz == 0) {
2233                                                 break;
2234                                         }
2235                                         if (left < cpsz) {
2236                                                 /* not enough room. */
2237                                                 break;
2238                                         }
2239 #if defined(INET) && defined(INET6)
2240                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2241                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2242                                                 /* Must map the address */
2243                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2244                                                     (struct sockaddr_in6 *)addr);
2245                                         } else {
2246                                                 memcpy(addr, &net->ro._l_addr, cpsz);
2247                                         }
2248 #else
2249                                         memcpy(addr, &net->ro._l_addr, cpsz);
2250 #endif
2251                                         ((struct sockaddr_in *)addr)->sin_port = stcb->rport;
2252
2253                                         addr = (struct sockaddr *)((caddr_t)addr + cpsz);
2254                                         left -= cpsz;
2255                                         *optsize += cpsz;
2256                                 }
2257                                 SCTP_TCB_UNLOCK(stcb);
2258                         } else {
2259                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2260                                     (saddr->sget_assoc_id <= SCTP_ALL_ASSOC)) {
2261                                         error = EINVAL;
2262                                 } else {
2263                                         error = ENOENT;
2264                                 }
2265                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2266                         }
2267                         break;
2268                 }
2269         case SCTP_GET_LOCAL_ADDRESSES:
2270                 {
2271                         size_t limit, actual;
2272                         struct sctp_getaddresses *saddr;
2273
2274                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2275                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2276
2277                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2278                             ((saddr->sget_assoc_id == SCTP_CURRENT_ASSOC) ||
2279                             (saddr->sget_assoc_id == SCTP_ALL_ASSOC))) {
2280                                 error = EINVAL;
2281                         } else {
2282                                 limit = *optsize - offsetof(struct sctp_getaddresses, addr);
2283                                 actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
2284                                 *optsize = offsetof(struct sctp_getaddresses, addr) + actual;
2285                         }
2286                         if (stcb != NULL) {
2287                                 SCTP_TCB_UNLOCK(stcb);
2288                         }
2289                         break;
2290                 }
2291         case SCTP_PEER_ADDR_PARAMS:
2292                 {
2293                         struct sctp_paddrparams *paddrp;
2294                         struct sctp_nets *net;
2295                         struct sockaddr *addr;
2296 #if defined(INET) && defined(INET6)
2297                         struct sockaddr_in sin_store;
2298 #endif
2299
2300                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2301                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2302
2303 #if defined(INET) && defined(INET6)
2304                         if (paddrp->spp_address.ss_family == AF_INET6) {
2305                                 struct sockaddr_in6 *sin6;
2306
2307                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2308                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2309                                         in6_sin6_2_sin(&sin_store, sin6);
2310                                         addr = (struct sockaddr *)&sin_store;
2311                                 } else {
2312                                         addr = (struct sockaddr *)&paddrp->spp_address;
2313                                 }
2314                         } else {
2315                                 addr = (struct sockaddr *)&paddrp->spp_address;
2316                         }
2317 #else
2318                         addr = (struct sockaddr *)&paddrp->spp_address;
2319 #endif
2320                         if (stcb != NULL) {
2321                                 net = sctp_findnet(stcb, addr);
2322                         } else {
2323                                 /*
2324                                  * We increment here since
2325                                  * sctp_findassociation_ep_addr() wil do a
2326                                  * decrement if it finds the stcb as long as
2327                                  * the locked tcb (last argument) is NOT a
2328                                  * TCB.. aka NULL.
2329                                  */
2330                                 net = NULL;
2331                                 SCTP_INP_INCR_REF(inp);
2332                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2333                                 if (stcb == NULL) {
2334                                         SCTP_INP_DECR_REF(inp);
2335                                 }
2336                         }
2337                         if ((stcb != NULL) && (net == NULL)) {
2338 #ifdef INET
2339                                 if (addr->sa_family == AF_INET) {
2340                                         struct sockaddr_in *sin;
2341
2342                                         sin = (struct sockaddr_in *)addr;
2343                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2344                                                 error = EINVAL;
2345                                                 SCTP_TCB_UNLOCK(stcb);
2346                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2347                                                 break;
2348                                         }
2349                                 } else
2350 #endif
2351 #ifdef INET6
2352                                 if (addr->sa_family == AF_INET6) {
2353                                         struct sockaddr_in6 *sin6;
2354
2355                                         sin6 = (struct sockaddr_in6 *)addr;
2356                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2357                                                 error = EINVAL;
2358                                                 SCTP_TCB_UNLOCK(stcb);
2359                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2360                                                 break;
2361                                         }
2362                                 } else
2363 #endif
2364                                 {
2365                                         error = EAFNOSUPPORT;
2366                                         SCTP_TCB_UNLOCK(stcb);
2367                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2368                                         break;
2369                                 }
2370                         }
2371
2372                         if (stcb != NULL) {
2373                                 /* Applies to the specific association */
2374                                 paddrp->spp_flags = 0;
2375                                 if (net != NULL) {
2376                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2377                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2378                                         paddrp->spp_pathmtu = net->mtu;
2379                                         switch (net->ro._l_addr.sa.sa_family) {
2380 #ifdef INET
2381                                         case AF_INET:
2382                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2383                                                 break;
2384 #endif
2385 #ifdef INET6
2386                                         case AF_INET6:
2387                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2388                                                 break;
2389 #endif
2390                                         default:
2391                                                 break;
2392                                         }
2393                                         /* get flags for HB */
2394                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2395                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2396                                         } else {
2397                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2398                                         }
2399                                         /* get flags for PMTU */
2400                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2401                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2402                                         } else {
2403                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2404                                         }
2405                                         if (net->dscp & 0x01) {
2406                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2407                                                 paddrp->spp_flags |= SPP_DSCP;
2408                                         }
2409 #ifdef INET6
2410                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2411                                             (net->flowlabel & 0x80000000)) {
2412                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2413                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2414                                         }
2415 #endif
2416                                 } else {
2417                                         /*
2418                                          * No destination so return default
2419                                          * value
2420                                          */
2421                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2422                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2423                                         if (stcb->asoc.default_dscp & 0x01) {
2424                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2425                                                 paddrp->spp_flags |= SPP_DSCP;
2426                                         }
2427 #ifdef INET6
2428                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2429                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2430                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2431                                         }
2432 #endif
2433                                         /* default settings should be these */
2434                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2435                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2436                                         } else {
2437                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2438                                         }
2439                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2440                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2441                                         } else {
2442                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2443                                         }
2444                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2445                                 }
2446                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2447                                 SCTP_TCB_UNLOCK(stcb);
2448                         } else {
2449                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2450                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2451                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2452                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2453                                         /* Use endpoint defaults */
2454                                         SCTP_INP_RLOCK(inp);
2455                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2456                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2457                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2458                                         /* get inp's default */
2459                                         if (inp->sctp_ep.default_dscp & 0x01) {
2460                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2461                                                 paddrp->spp_flags |= SPP_DSCP;
2462                                         }
2463 #ifdef INET6
2464                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2465                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2466                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2467                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2468                                         }
2469 #endif
2470                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2471
2472                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2473                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2474                                         } else {
2475                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2476                                         }
2477                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2478                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2479                                         } else {
2480                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2481                                         }
2482                                         SCTP_INP_RUNLOCK(inp);
2483                                 } else {
2484                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2485                                         error = EINVAL;
2486                                 }
2487                         }
2488                         if (error == 0) {
2489                                 *optsize = sizeof(struct sctp_paddrparams);
2490                         }
2491                         break;
2492                 }
2493         case SCTP_GET_PEER_ADDR_INFO:
2494                 {
2495                         struct sctp_paddrinfo *paddri;
2496                         struct sctp_nets *net;
2497                         struct sockaddr *addr;
2498 #if defined(INET) && defined(INET6)
2499                         struct sockaddr_in sin_store;
2500 #endif
2501
2502                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2503                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2504
2505 #if defined(INET) && defined(INET6)
2506                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2507                                 struct sockaddr_in6 *sin6;
2508
2509                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2510                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2511                                         in6_sin6_2_sin(&sin_store, sin6);
2512                                         addr = (struct sockaddr *)&sin_store;
2513                                 } else {
2514                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2515                                 }
2516                         } else {
2517                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2518                         }
2519 #else
2520                         addr = (struct sockaddr *)&paddri->spinfo_address;
2521 #endif
2522                         if (stcb != NULL) {
2523                                 net = sctp_findnet(stcb, addr);
2524                         } else {
2525                                 /*
2526                                  * We increment here since
2527                                  * sctp_findassociation_ep_addr() wil do a
2528                                  * decrement if it finds the stcb as long as
2529                                  * the locked tcb (last argument) is NOT a
2530                                  * TCB.. aka NULL.
2531                                  */
2532                                 net = NULL;
2533                                 SCTP_INP_INCR_REF(inp);
2534                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2535                                 if (stcb == NULL) {
2536                                         SCTP_INP_DECR_REF(inp);
2537                                 }
2538                         }
2539
2540                         if ((stcb != NULL) && (net != NULL)) {
2541                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2542                                         /* It's unconfirmed */
2543                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2544                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2545                                         /* It's active */
2546                                         paddri->spinfo_state = SCTP_ACTIVE;
2547                                 } else {
2548                                         /* It's inactive */
2549                                         paddri->spinfo_state = SCTP_INACTIVE;
2550                                 }
2551                                 paddri->spinfo_cwnd = net->cwnd;
2552                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2553                                 paddri->spinfo_rto = net->RTO;
2554                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2555                                 paddri->spinfo_mtu = net->mtu;
2556                                 switch (addr->sa_family) {
2557 #if defined(INET)
2558                                 case AF_INET:
2559                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2560                                         break;
2561 #endif
2562 #if defined(INET6)
2563                                 case AF_INET6:
2564                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2565                                         break;
2566 #endif
2567                                 default:
2568                                         break;
2569                                 }
2570                                 SCTP_TCB_UNLOCK(stcb);
2571                                 *optsize = sizeof(struct sctp_paddrinfo);
2572                         } else {
2573                                 if (stcb != NULL) {
2574                                         SCTP_TCB_UNLOCK(stcb);
2575                                 }
2576                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2577                                 error = ENOENT;
2578                         }
2579                         break;
2580                 }
2581         case SCTP_PCB_STATUS:
2582                 {
2583                         struct sctp_pcbinfo *spcb;
2584
2585                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2586                         sctp_fill_pcbinfo(spcb);
2587                         *optsize = sizeof(struct sctp_pcbinfo);
2588                         break;
2589                 }
2590         case SCTP_STATUS:
2591                 {
2592                         struct sctp_nets *net;
2593                         struct sctp_status *sstat;
2594
2595                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2596                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2597
2598                         if (stcb == NULL) {
2599                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2600                                 error = EINVAL;
2601                                 break;
2602                         }
2603                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2604                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2605                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2606                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2607                         /*
2608                          * We can't include chunks that have been passed to
2609                          * the socket layer. Only things in queue.
2610                          */
2611                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2612                             stcb->asoc.cnt_on_all_streams);
2613                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2614                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2615                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb);
2616                         net = stcb->asoc.primary_destination;
2617                         if (net != NULL) {
2618                                 memcpy(&sstat->sstat_primary.spinfo_address,
2619                                     &net->ro._l_addr,
2620                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2621                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2622                                 /*
2623                                  * Again the user can get info from
2624                                  * sctp_constants.h for what the state of
2625                                  * the network is.
2626                                  */
2627                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2628                                         /* It's unconfirmed */
2629                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2630                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2631                                         /* It's active */
2632                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2633                                 } else {
2634                                         /* It's inactive */
2635                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2636                                 }
2637                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2638                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2639                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2640                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2641                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2642 #if defined(INET)
2643                                 case AF_INET:
2644                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2645                                         break;
2646 #endif
2647 #if defined(INET6)
2648                                 case AF_INET6:
2649                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2650                                         break;
2651 #endif
2652                                 default:
2653                                         break;
2654                                 }
2655                         } else {
2656                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2657                         }
2658                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2659                         SCTP_TCB_UNLOCK(stcb);
2660                         *optsize = sizeof(struct sctp_status);
2661                         break;
2662                 }
2663         case SCTP_RTOINFO:
2664                 {
2665                         struct sctp_rtoinfo *srto;
2666
2667                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2668                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2669
2670                         if (stcb) {
2671                                 srto->srto_initial = stcb->asoc.initial_rto;
2672                                 srto->srto_max = stcb->asoc.maxrto;
2673                                 srto->srto_min = stcb->asoc.minrto;
2674                                 SCTP_TCB_UNLOCK(stcb);
2675                         } else {
2676                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2677                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2678                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2679                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2680                                         SCTP_INP_RLOCK(inp);
2681                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2682                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2683                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2684                                         SCTP_INP_RUNLOCK(inp);
2685                                 } else {
2686                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2687                                         error = EINVAL;
2688                                 }
2689                         }
2690                         if (error == 0) {
2691                                 *optsize = sizeof(struct sctp_rtoinfo);
2692                         }
2693                         break;
2694                 }
2695         case SCTP_TIMEOUTS:
2696                 {
2697                         struct sctp_timeouts *stimo;
2698
2699                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2700                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2701
2702                         if (stcb) {
2703                                 stimo->stimo_init = stcb->asoc.timoinit;
2704                                 stimo->stimo_data = stcb->asoc.timodata;
2705                                 stimo->stimo_sack = stcb->asoc.timosack;
2706                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2707                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2708                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2709                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2710                                 SCTP_TCB_UNLOCK(stcb);
2711                                 *optsize = sizeof(struct sctp_timeouts);
2712                         } else {
2713                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2714                                 error = EINVAL;
2715                         }
2716                         break;
2717                 }
2718         case SCTP_ASSOCINFO:
2719                 {
2720                         struct sctp_assocparams *sasoc;
2721
2722                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2723                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2724
2725                         if (stcb) {
2726                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2727                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2728                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2729                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2730                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2731                                 SCTP_TCB_UNLOCK(stcb);
2732                         } else {
2733                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2734                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2735                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2736                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2737                                         SCTP_INP_RLOCK(inp);
2738                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2739                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2740                                         sasoc->sasoc_number_peer_destinations = 0;
2741                                         sasoc->sasoc_peer_rwnd = 0;
2742                                         sasoc->sasoc_local_rwnd = (uint32_t)sbspace(&inp->sctp_socket->so_rcv);
2743                                         SCTP_INP_RUNLOCK(inp);
2744                                 } else {
2745                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2746                                         error = EINVAL;
2747                                 }
2748                         }
2749                         if (error == 0) {
2750                                 *optsize = sizeof(struct sctp_assocparams);
2751                         }
2752                         break;
2753                 }
2754         case SCTP_DEFAULT_SEND_PARAM:
2755                 {
2756                         struct sctp_sndrcvinfo *s_info;
2757
2758                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2759                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2760
2761                         if (stcb) {
2762                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2763                                 SCTP_TCB_UNLOCK(stcb);
2764                         } else {
2765                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2766                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2767                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2768                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2769                                         SCTP_INP_RLOCK(inp);
2770                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2771                                         SCTP_INP_RUNLOCK(inp);
2772                                 } else {
2773                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2774                                         error = EINVAL;
2775                                 }
2776                         }
2777                         if (error == 0) {
2778                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2779                         }
2780                         break;
2781                 }
2782         case SCTP_INITMSG:
2783                 {
2784                         struct sctp_initmsg *sinit;
2785
2786                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2787                         SCTP_INP_RLOCK(inp);
2788                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2789                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2790                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2791                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2792                         SCTP_INP_RUNLOCK(inp);
2793                         *optsize = sizeof(struct sctp_initmsg);
2794                         break;
2795                 }
2796         case SCTP_PRIMARY_ADDR:
2797                 /* we allow a "get" operation on this */
2798                 {
2799                         struct sctp_setprim *ssp;
2800
2801                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2802                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2803
2804                         if (stcb) {
2805                                 union sctp_sockstore *addr;
2806
2807                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2808                                 switch (addr->sa.sa_family) {
2809 #ifdef INET
2810                                 case AF_INET:
2811 #ifdef INET6
2812                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2813                                                 in6_sin_2_v4mapsin6(&addr->sin,
2814                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2815                                         } else {
2816                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2817                                         }
2818 #else
2819                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2820 #endif
2821                                         break;
2822 #endif
2823 #ifdef INET6
2824                                 case AF_INET6:
2825                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2826                                         break;
2827 #endif
2828                                 default:
2829                                         break;
2830                                 }
2831                                 SCTP_TCB_UNLOCK(stcb);
2832                                 *optsize = sizeof(struct sctp_setprim);
2833                         } else {
2834                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2835                                 error = EINVAL;
2836                         }
2837                         break;
2838                 }
2839         case SCTP_HMAC_IDENT:
2840                 {
2841                         struct sctp_hmacalgo *shmac;
2842                         sctp_hmaclist_t *hmaclist;
2843                         size_t size;
2844                         int i;
2845
2846                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2847
2848                         SCTP_INP_RLOCK(inp);
2849                         hmaclist = inp->sctp_ep.local_hmacs;
2850                         if (hmaclist == NULL) {
2851                                 /* no HMACs to return */
2852                                 *optsize = sizeof(*shmac);
2853                                 SCTP_INP_RUNLOCK(inp);
2854                                 break;
2855                         }
2856                         /* is there room for all of the hmac ids? */
2857                         size = sizeof(*shmac) + (hmaclist->num_algo *
2858                             sizeof(shmac->shmac_idents[0]));
2859                         if (*optsize < size) {
2860                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2861                                 error = EINVAL;
2862                                 SCTP_INP_RUNLOCK(inp);
2863                                 break;
2864                         }
2865                         /* copy in the list */
2866                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2867                         for (i = 0; i < hmaclist->num_algo; i++) {
2868                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2869                         }
2870                         SCTP_INP_RUNLOCK(inp);
2871                         *optsize = size;
2872                         break;
2873                 }
2874         case SCTP_AUTH_ACTIVE_KEY:
2875                 {
2876                         struct sctp_authkeyid *scact;
2877
2878                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2879                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2880
2881                         if (stcb) {
2882                                 /* get the active key on the assoc */
2883                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2884                                 SCTP_TCB_UNLOCK(stcb);
2885                         } else {
2886                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2887                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2888                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2889                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2890                                         /* get the endpoint active key */
2891                                         SCTP_INP_RLOCK(inp);
2892                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2893                                         SCTP_INP_RUNLOCK(inp);
2894                                 } else {
2895                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2896                                         error = EINVAL;
2897                                 }
2898                         }
2899                         if (error == 0) {
2900                                 *optsize = sizeof(struct sctp_authkeyid);
2901                         }
2902                         break;
2903                 }
2904         case SCTP_LOCAL_AUTH_CHUNKS:
2905                 {
2906                         struct sctp_authchunks *sac;
2907                         sctp_auth_chklist_t *chklist = NULL;
2908                         size_t size = 0;
2909
2910                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2911                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2912
2913                         if (stcb) {
2914                                 /* get off the assoc */
2915                                 chklist = stcb->asoc.local_auth_chunks;
2916                                 /* is there enough space? */
2917                                 size = sctp_auth_get_chklist_size(chklist);
2918                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2919                                         error = EINVAL;
2920                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2921                                 } else {
2922                                         /* copy in the chunks */
2923                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2924                                         sac->gauth_number_of_chunks = (uint32_t)size;
2925                                         *optsize = sizeof(struct sctp_authchunks) + size;
2926                                 }
2927                                 SCTP_TCB_UNLOCK(stcb);
2928                         } else {
2929                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2930                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2931                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2932                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2933                                         /* get off the endpoint */
2934                                         SCTP_INP_RLOCK(inp);
2935                                         chklist = inp->sctp_ep.local_auth_chunks;
2936                                         /* is there enough space? */
2937                                         size = sctp_auth_get_chklist_size(chklist);
2938                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2939                                                 error = EINVAL;
2940                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2941                                         } else {
2942                                                 /* copy in the chunks */
2943                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2944                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2945                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2946                                         }
2947                                         SCTP_INP_RUNLOCK(inp);
2948                                 } else {
2949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2950                                         error = EINVAL;
2951                                 }
2952                         }
2953                         break;
2954                 }
2955         case SCTP_PEER_AUTH_CHUNKS:
2956                 {
2957                         struct sctp_authchunks *sac;
2958                         sctp_auth_chklist_t *chklist = NULL;
2959                         size_t size = 0;
2960
2961                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2962                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2963
2964                         if (stcb) {
2965                                 /* get off the assoc */
2966                                 chklist = stcb->asoc.peer_auth_chunks;
2967                                 /* is there enough space? */
2968                                 size = sctp_auth_get_chklist_size(chklist);
2969                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2970                                         error = EINVAL;
2971                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2972                                 } else {
2973                                         /* copy in the chunks */
2974                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2975                                         sac->gauth_number_of_chunks = (uint32_t)size;
2976                                         *optsize = sizeof(struct sctp_authchunks) + size;
2977                                 }
2978                                 SCTP_TCB_UNLOCK(stcb);
2979                         } else {
2980                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2981                                 error = ENOENT;
2982                         }
2983                         break;
2984                 }
2985         case SCTP_EVENT:
2986                 {
2987                         struct sctp_event *event;
2988                         uint32_t event_type;
2989
2990                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2991                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2992
2993                         switch (event->se_type) {
2994                         case SCTP_ASSOC_CHANGE:
2995                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2996                                 break;
2997                         case SCTP_PEER_ADDR_CHANGE:
2998                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2999                                 break;
3000                         case SCTP_REMOTE_ERROR:
3001                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3002                                 break;
3003                         case SCTP_SEND_FAILED:
3004                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3005                                 break;
3006                         case SCTP_SHUTDOWN_EVENT:
3007                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3008                                 break;
3009                         case SCTP_ADAPTATION_INDICATION:
3010                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3011                                 break;
3012                         case SCTP_PARTIAL_DELIVERY_EVENT:
3013                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3014                                 break;
3015                         case SCTP_AUTHENTICATION_EVENT:
3016                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3017                                 break;
3018                         case SCTP_STREAM_RESET_EVENT:
3019                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3020                                 break;
3021                         case SCTP_SENDER_DRY_EVENT:
3022                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3023                                 break;
3024                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3025                                 event_type = 0;
3026                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3027                                 error = ENOTSUP;
3028                                 break;
3029                         case SCTP_ASSOC_RESET_EVENT:
3030                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3031                                 break;
3032                         case SCTP_STREAM_CHANGE_EVENT:
3033                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3034                                 break;
3035                         case SCTP_SEND_FAILED_EVENT:
3036                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3037                                 break;
3038                         default:
3039                                 event_type = 0;
3040                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3041                                 error = EINVAL;
3042                                 break;
3043                         }
3044                         if (event_type > 0) {
3045                                 if (stcb) {
3046                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3047                                 } else {
3048                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3049                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3050                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3051                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3052                                                 SCTP_INP_RLOCK(inp);
3053                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3054                                                 SCTP_INP_RUNLOCK(inp);
3055                                         } else {
3056                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3057                                                 error = EINVAL;
3058                                         }
3059                                 }
3060                         }
3061                         if (stcb != NULL) {
3062                                 SCTP_TCB_UNLOCK(stcb);
3063                         }
3064                         if (error == 0) {
3065                                 *optsize = sizeof(struct sctp_event);
3066                         }
3067                         break;
3068                 }
3069         case SCTP_RECVRCVINFO:
3070                 if (*optsize < sizeof(int)) {
3071                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3072                         error = EINVAL;
3073                 } else {
3074                         SCTP_INP_RLOCK(inp);
3075                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3076                         SCTP_INP_RUNLOCK(inp);
3077                         *optsize = sizeof(int);
3078                 }
3079                 break;
3080         case SCTP_RECVNXTINFO:
3081                 if (*optsize < sizeof(int)) {
3082                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3083                         error = EINVAL;
3084                 } else {
3085                         SCTP_INP_RLOCK(inp);
3086                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3087                         SCTP_INP_RUNLOCK(inp);
3088                         *optsize = sizeof(int);
3089                 }
3090                 break;
3091         case SCTP_DEFAULT_SNDINFO:
3092                 {
3093                         struct sctp_sndinfo *info;
3094
3095                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3096                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3097
3098                         if (stcb) {
3099                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3100                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3101                                 info->snd_flags &= 0xfff0;
3102                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3103                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3104                                 SCTP_TCB_UNLOCK(stcb);
3105                         } else {
3106                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3107                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3108                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3109                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3110                                         SCTP_INP_RLOCK(inp);
3111                                         info->snd_sid = inp->def_send.sinfo_stream;
3112                                         info->snd_flags = inp->def_send.sinfo_flags;
3113                                         info->snd_flags &= 0xfff0;
3114                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3115                                         info->snd_context = inp->def_send.sinfo_context;
3116                                         SCTP_INP_RUNLOCK(inp);
3117                                 } else {
3118                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3119                                         error = EINVAL;
3120                                 }
3121                         }
3122                         if (error == 0) {
3123                                 *optsize = sizeof(struct sctp_sndinfo);
3124                         }
3125                         break;
3126                 }
3127         case SCTP_DEFAULT_PRINFO:
3128                 {
3129                         struct sctp_default_prinfo *info;
3130
3131                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3132                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3133
3134                         if (stcb) {
3135                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3136                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3137                                 SCTP_TCB_UNLOCK(stcb);
3138                         } else {
3139                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3140                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3141                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3142                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3143                                         SCTP_INP_RLOCK(inp);
3144                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3145                                         info->pr_value = inp->def_send.sinfo_timetolive;
3146                                         SCTP_INP_RUNLOCK(inp);
3147                                 } else {
3148                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3149                                         error = EINVAL;
3150                                 }
3151                         }
3152                         if (error == 0) {
3153                                 *optsize = sizeof(struct sctp_default_prinfo);
3154                         }
3155                         break;
3156                 }
3157         case SCTP_PEER_ADDR_THLDS:
3158                 {
3159                         struct sctp_paddrthlds *thlds;
3160                         struct sctp_nets *net;
3161                         struct sockaddr *addr;
3162 #if defined(INET) && defined(INET6)
3163                         struct sockaddr_in sin_store;
3164 #endif
3165
3166                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3167                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3168
3169 #if defined(INET) && defined(INET6)
3170                         if (thlds->spt_address.ss_family == AF_INET6) {
3171                                 struct sockaddr_in6 *sin6;
3172
3173                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3174                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3175                                         in6_sin6_2_sin(&sin_store, sin6);
3176                                         addr = (struct sockaddr *)&sin_store;
3177                                 } else {
3178                                         addr = (struct sockaddr *)&thlds->spt_address;
3179                                 }
3180                         } else {
3181                                 addr = (struct sockaddr *)&thlds->spt_address;
3182                         }
3183 #else
3184                         addr = (struct sockaddr *)&thlds->spt_address;
3185 #endif
3186                         if (stcb != NULL) {
3187                                 net = sctp_findnet(stcb, addr);
3188                         } else {
3189                                 /*
3190                                  * We increment here since
3191                                  * sctp_findassociation_ep_addr() wil do a
3192                                  * decrement if it finds the stcb as long as
3193                                  * the locked tcb (last argument) is NOT a
3194                                  * TCB.. aka NULL.
3195                                  */
3196                                 net = NULL;
3197                                 SCTP_INP_INCR_REF(inp);
3198                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3199                                 if (stcb == NULL) {
3200                                         SCTP_INP_DECR_REF(inp);
3201                                 }
3202                         }
3203                         if ((stcb != NULL) && (net == NULL)) {
3204 #ifdef INET
3205                                 if (addr->sa_family == AF_INET) {
3206                                         struct sockaddr_in *sin;
3207
3208                                         sin = (struct sockaddr_in *)addr;
3209                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3210                                                 error = EINVAL;
3211                                                 SCTP_TCB_UNLOCK(stcb);
3212                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3213                                                 break;
3214                                         }
3215                                 } else
3216 #endif
3217 #ifdef INET6
3218                                 if (addr->sa_family == AF_INET6) {
3219                                         struct sockaddr_in6 *sin6;
3220
3221                                         sin6 = (struct sockaddr_in6 *)addr;
3222                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3223                                                 error = EINVAL;
3224                                                 SCTP_TCB_UNLOCK(stcb);
3225                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3226                                                 break;
3227                                         }
3228                                 } else
3229 #endif
3230                                 {
3231                                         error = EAFNOSUPPORT;
3232                                         SCTP_TCB_UNLOCK(stcb);
3233                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3234                                         break;
3235                                 }
3236                         }
3237
3238                         if (stcb != NULL) {
3239                                 if (net != NULL) {
3240                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3241                                         thlds->spt_pathpfthld = net->pf_threshold;
3242                                         thlds->spt_pathcpthld = 0xffff;
3243                                 } else {
3244                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3245                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3246                                         thlds->spt_pathcpthld = 0xffff;
3247                                 }
3248                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3249                                 SCTP_TCB_UNLOCK(stcb);
3250                         } else {
3251                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3252                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3253                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3254                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3255                                         /* Use endpoint defaults */
3256                                         SCTP_INP_RLOCK(inp);
3257                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3258                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3259                                         thlds->spt_pathcpthld = 0xffff;
3260                                         SCTP_INP_RUNLOCK(inp);
3261                                 } else {
3262                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3263                                         error = EINVAL;
3264                                 }
3265                         }
3266                         if (error == 0) {
3267                                 *optsize = sizeof(struct sctp_paddrthlds);
3268                         }
3269                         break;
3270                 }
3271         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3272                 {
3273                         struct sctp_udpencaps *encaps;
3274                         struct sctp_nets *net;
3275                         struct sockaddr *addr;
3276 #if defined(INET) && defined(INET6)
3277                         struct sockaddr_in sin_store;
3278 #endif
3279
3280                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3281                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3282
3283 #if defined(INET) && defined(INET6)
3284                         if (encaps->sue_address.ss_family == AF_INET6) {
3285                                 struct sockaddr_in6 *sin6;
3286
3287                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3288                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3289                                         in6_sin6_2_sin(&sin_store, sin6);
3290                                         addr = (struct sockaddr *)&sin_store;
3291                                 } else {
3292                                         addr = (struct sockaddr *)&encaps->sue_address;
3293                                 }
3294                         } else {
3295                                 addr = (struct sockaddr *)&encaps->sue_address;
3296                         }
3297 #else
3298                         addr = (struct sockaddr *)&encaps->sue_address;
3299 #endif
3300                         if (stcb) {
3301                                 net = sctp_findnet(stcb, addr);
3302                         } else {
3303                                 /*
3304                                  * We increment here since
3305                                  * sctp_findassociation_ep_addr() wil do a
3306                                  * decrement if it finds the stcb as long as
3307                                  * the locked tcb (last argument) is NOT a
3308                                  * TCB.. aka NULL.
3309                                  */
3310                                 net = NULL;
3311                                 SCTP_INP_INCR_REF(inp);
3312                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3313                                 if (stcb == NULL) {
3314                                         SCTP_INP_DECR_REF(inp);
3315                                 }
3316                         }
3317                         if ((stcb != NULL) && (net == NULL)) {
3318 #ifdef INET
3319                                 if (addr->sa_family == AF_INET) {
3320                                         struct sockaddr_in *sin;
3321
3322                                         sin = (struct sockaddr_in *)addr;
3323                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3324                                                 error = EINVAL;
3325                                                 SCTP_TCB_UNLOCK(stcb);
3326                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3327                                                 break;
3328                                         }
3329                                 } else
3330 #endif
3331 #ifdef INET6
3332                                 if (addr->sa_family == AF_INET6) {
3333                                         struct sockaddr_in6 *sin6;
3334
3335                                         sin6 = (struct sockaddr_in6 *)addr;
3336                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3337                                                 error = EINVAL;
3338                                                 SCTP_TCB_UNLOCK(stcb);
3339                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3340                                                 break;
3341                                         }
3342                                 } else
3343 #endif
3344                                 {
3345                                         error = EAFNOSUPPORT;
3346                                         SCTP_TCB_UNLOCK(stcb);
3347                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3348                                         break;
3349                                 }
3350                         }
3351
3352                         if (stcb != NULL) {
3353                                 if (net) {
3354                                         encaps->sue_port = net->port;
3355                                 } else {
3356                                         encaps->sue_port = stcb->asoc.port;
3357                                 }
3358                                 SCTP_TCB_UNLOCK(stcb);
3359                         } else {
3360                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3361                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3362                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3363                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3364                                         SCTP_INP_RLOCK(inp);
3365                                         encaps->sue_port = inp->sctp_ep.port;
3366                                         SCTP_INP_RUNLOCK(inp);
3367                                 } else {
3368                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3369                                         error = EINVAL;
3370                                 }
3371                         }
3372                         if (error == 0) {
3373                                 *optsize = sizeof(struct sctp_udpencaps);
3374                         }
3375                         break;
3376                 }
3377         case SCTP_ECN_SUPPORTED:
3378                 {
3379                         struct sctp_assoc_value *av;
3380
3381                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3382                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3383
3384                         if (stcb) {
3385                                 av->assoc_value = stcb->asoc.ecn_supported;
3386                                 SCTP_TCB_UNLOCK(stcb);
3387                         } else {
3388                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3389                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3390                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3391                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3392                                         SCTP_INP_RLOCK(inp);
3393                                         av->assoc_value = inp->ecn_supported;
3394                                         SCTP_INP_RUNLOCK(inp);
3395                                 } else {
3396                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3397                                         error = EINVAL;
3398                                 }
3399                         }
3400                         if (error == 0) {
3401                                 *optsize = sizeof(struct sctp_assoc_value);
3402                         }
3403                         break;
3404                 }
3405         case SCTP_PR_SUPPORTED:
3406                 {
3407                         struct sctp_assoc_value *av;
3408
3409                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3410                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3411
3412                         if (stcb) {
3413                                 av->assoc_value = stcb->asoc.prsctp_supported;
3414                                 SCTP_TCB_UNLOCK(stcb);
3415                         } else {
3416                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3417                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3418                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3419                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3420                                         SCTP_INP_RLOCK(inp);
3421                                         av->assoc_value = inp->prsctp_supported;
3422                                         SCTP_INP_RUNLOCK(inp);
3423                                 } else {
3424                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3425                                         error = EINVAL;
3426                                 }
3427                         }
3428                         if (error == 0) {
3429                                 *optsize = sizeof(struct sctp_assoc_value);
3430                         }
3431                         break;
3432                 }
3433         case SCTP_AUTH_SUPPORTED:
3434                 {
3435                         struct sctp_assoc_value *av;
3436
3437                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3438                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3439
3440                         if (stcb) {
3441                                 av->assoc_value = stcb->asoc.auth_supported;
3442                                 SCTP_TCB_UNLOCK(stcb);
3443                         } else {
3444                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3445                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3446                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3447                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3448                                         SCTP_INP_RLOCK(inp);
3449                                         av->assoc_value = inp->auth_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_ASCONF_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.asconf_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                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3475                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3476                                         SCTP_INP_RLOCK(inp);
3477                                         av->assoc_value = inp->asconf_supported;
3478                                         SCTP_INP_RUNLOCK(inp);
3479                                 } else {
3480                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3481                                         error = EINVAL;
3482                                 }
3483                         }
3484                         if (error == 0) {
3485                                 *optsize = sizeof(struct sctp_assoc_value);
3486                         }
3487                         break;
3488                 }
3489         case SCTP_RECONFIG_SUPPORTED:
3490                 {
3491                         struct sctp_assoc_value *av;
3492
3493                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3494                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3495
3496                         if (stcb) {
3497                                 av->assoc_value = stcb->asoc.reconfig_supported;
3498                                 SCTP_TCB_UNLOCK(stcb);
3499                         } else {
3500                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3501                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3502                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3503                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3504                                         SCTP_INP_RLOCK(inp);
3505                                         av->assoc_value = inp->reconfig_supported;
3506                                         SCTP_INP_RUNLOCK(inp);
3507                                 } else {
3508                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3509                                         error = EINVAL;
3510                                 }
3511                         }
3512                         if (error == 0) {
3513                                 *optsize = sizeof(struct sctp_assoc_value);
3514                         }
3515                         break;
3516                 }
3517         case SCTP_NRSACK_SUPPORTED:
3518                 {
3519                         struct sctp_assoc_value *av;
3520
3521                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3522                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3523
3524                         if (stcb) {
3525                                 av->assoc_value = stcb->asoc.nrsack_supported;
3526                                 SCTP_TCB_UNLOCK(stcb);
3527                         } else {
3528                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3529                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3530                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3531                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3532                                         SCTP_INP_RLOCK(inp);
3533                                         av->assoc_value = inp->nrsack_supported;
3534                                         SCTP_INP_RUNLOCK(inp);
3535                                 } else {
3536                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3537                                         error = EINVAL;
3538                                 }
3539                         }
3540                         if (error == 0) {
3541                                 *optsize = sizeof(struct sctp_assoc_value);
3542                         }
3543                         break;
3544                 }
3545         case SCTP_PKTDROP_SUPPORTED:
3546                 {
3547                         struct sctp_assoc_value *av;
3548
3549                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3550                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3551
3552                         if (stcb) {
3553                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3554                                 SCTP_TCB_UNLOCK(stcb);
3555                         } else {
3556                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3557                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3558                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3559                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3560                                         SCTP_INP_RLOCK(inp);
3561                                         av->assoc_value = inp->pktdrop_supported;
3562                                         SCTP_INP_RUNLOCK(inp);
3563                                 } else {
3564                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3565                                         error = EINVAL;
3566                                 }
3567                         }
3568                         if (error == 0) {
3569                                 *optsize = sizeof(struct sctp_assoc_value);
3570                         }
3571                         break;
3572                 }
3573         case SCTP_ENABLE_STREAM_RESET:
3574                 {
3575                         struct sctp_assoc_value *av;
3576
3577                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3578                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3579
3580                         if (stcb) {
3581                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3582                                 SCTP_TCB_UNLOCK(stcb);
3583                         } else {
3584                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3585                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3586                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3587                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3588                                         SCTP_INP_RLOCK(inp);
3589                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3590                                         SCTP_INP_RUNLOCK(inp);
3591                                 } else {
3592                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3593                                         error = EINVAL;
3594                                 }
3595                         }
3596                         if (error == 0) {
3597                                 *optsize = sizeof(struct sctp_assoc_value);
3598                         }
3599                         break;
3600                 }
3601         case SCTP_PR_STREAM_STATUS:
3602                 {
3603                         struct sctp_prstatus *sprstat;
3604                         uint16_t sid;
3605                         uint16_t policy;
3606
3607                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3608                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3609
3610                         sid = sprstat->sprstat_sid;
3611                         policy = sprstat->sprstat_policy;
3612 #if defined(SCTP_DETAILED_STR_STATS)
3613                         if ((stcb != NULL) &&
3614                             (sid < stcb->asoc.streamoutcnt) &&
3615                             (policy != SCTP_PR_SCTP_NONE) &&
3616                             ((policy <= SCTP_PR_SCTP_MAX) ||
3617                             (policy == SCTP_PR_SCTP_ALL))) {
3618                                 if (policy == SCTP_PR_SCTP_ALL) {
3619                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3620                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3621                                 } else {
3622                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3623                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3624                                 }
3625 #else
3626                         if ((stcb != NULL) &&
3627                             (sid < stcb->asoc.streamoutcnt) &&
3628                             (policy == SCTP_PR_SCTP_ALL)) {
3629                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3630                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3631 #endif
3632                         } else {
3633                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3634                                 error = EINVAL;
3635                         }
3636                         if (stcb != NULL) {
3637                                 SCTP_TCB_UNLOCK(stcb);
3638                         }
3639                         if (error == 0) {
3640                                 *optsize = sizeof(struct sctp_prstatus);
3641                         }
3642                         break;
3643                 }
3644         case SCTP_PR_ASSOC_STATUS:
3645                 {
3646                         struct sctp_prstatus *sprstat;
3647                         uint16_t policy;
3648
3649                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3650                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3651
3652                         policy = sprstat->sprstat_policy;
3653                         if ((stcb != NULL) &&
3654                             (policy != SCTP_PR_SCTP_NONE) &&
3655                             ((policy <= SCTP_PR_SCTP_MAX) ||
3656                             (policy == SCTP_PR_SCTP_ALL))) {
3657                                 if (policy == SCTP_PR_SCTP_ALL) {
3658                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3659                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3660                                 } else {
3661                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3662                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3663                                 }
3664                         } else {
3665                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3666                                 error = EINVAL;
3667                         }
3668                         if (stcb != NULL) {
3669                                 SCTP_TCB_UNLOCK(stcb);
3670                         }
3671                         if (error == 0) {
3672                                 *optsize = sizeof(struct sctp_prstatus);
3673                         }
3674                         break;
3675                 }
3676         case SCTP_MAX_CWND:
3677                 {
3678                         struct sctp_assoc_value *av;
3679
3680                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3681                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3682
3683                         if (stcb) {
3684                                 av->assoc_value = stcb->asoc.max_cwnd;
3685                                 SCTP_TCB_UNLOCK(stcb);
3686                         } else {
3687                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3688                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3689                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3690                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3691                                         SCTP_INP_RLOCK(inp);
3692                                         av->assoc_value = inp->max_cwnd;
3693                                         SCTP_INP_RUNLOCK(inp);
3694                                 } else {
3695                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3696                                         error = EINVAL;
3697                                 }
3698                         }
3699                         if (error == 0) {
3700                                 *optsize = sizeof(struct sctp_assoc_value);
3701                         }
3702                         break;
3703                 }
3704         default:
3705                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3706                 error = ENOPROTOOPT;
3707                 break;
3708         }                       /* end switch (sopt->sopt_name) */
3709         if (error) {
3710                 *optsize = 0;
3711         }
3712         return (error);
3713 }
3714
3715 static int
3716 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3717     void *p)
3718 {
3719         int error, set_opt;
3720         uint32_t *mopt;
3721         struct sctp_tcb *stcb = NULL;
3722         struct sctp_inpcb *inp = NULL;
3723         uint32_t vrf_id;
3724
3725         if (optval == NULL) {
3726                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3727                 return (EINVAL);
3728         }
3729         inp = (struct sctp_inpcb *)so->so_pcb;
3730         if (inp == NULL) {
3731                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3732                 return (EINVAL);
3733         }
3734         vrf_id = inp->def_vrf_id;
3735
3736         error = 0;
3737         switch (optname) {
3738         case SCTP_NODELAY:
3739         case SCTP_AUTOCLOSE:
3740         case SCTP_AUTO_ASCONF:
3741         case SCTP_EXPLICIT_EOR:
3742         case SCTP_DISABLE_FRAGMENTS:
3743         case SCTP_USE_EXT_RCVINFO:
3744         case SCTP_I_WANT_MAPPED_V4_ADDR:
3745                 /* copy in the option value */
3746                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3747                 set_opt = 0;
3748                 if (error)
3749                         break;
3750                 switch (optname) {
3751                 case SCTP_DISABLE_FRAGMENTS:
3752                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3753                         break;
3754                 case SCTP_AUTO_ASCONF:
3755                         /*
3756                          * NOTE: we don't really support this flag
3757                          */
3758                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3759                                 /* only valid for bound all sockets */
3760                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3761                                     (*mopt != 0)) {
3762                                         /* forbidden by admin */
3763                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3764                                         return (EPERM);
3765                                 }
3766                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3767                         } else {
3768                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3769                                 return (EINVAL);
3770                         }
3771                         break;
3772                 case SCTP_EXPLICIT_EOR:
3773                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3774                         break;
3775                 case SCTP_USE_EXT_RCVINFO:
3776                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3777                         break;
3778                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3779                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3780                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3781                         } else {
3782                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3783                                 return (EINVAL);
3784                         }
3785                         break;
3786                 case SCTP_NODELAY:
3787                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3788                         break;
3789                 case SCTP_AUTOCLOSE:
3790                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3791                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3792                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3793                                 return (EINVAL);
3794                         }
3795                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3796                         /*
3797                          * The value is in ticks. Note this does not effect
3798                          * old associations, only new ones.
3799                          */
3800                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3801                         break;
3802                 }
3803                 SCTP_INP_WLOCK(inp);
3804                 if (*mopt != 0) {
3805                         sctp_feature_on(inp, set_opt);
3806                 } else {
3807                         sctp_feature_off(inp, set_opt);
3808                 }
3809                 SCTP_INP_WUNLOCK(inp);
3810                 break;
3811         case SCTP_REUSE_PORT:
3812                 {
3813                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3814                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3815                                 /* Can't set it after we are bound */
3816                                 error = EINVAL;
3817                                 break;
3818                         }
3819                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3820                                 /* Can't do this for a 1-m socket */
3821                                 error = EINVAL;
3822                                 break;
3823                         }
3824                         if (optval)
3825                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3826                         else
3827                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3828                         break;
3829                 }
3830         case SCTP_PARTIAL_DELIVERY_POINT:
3831                 {
3832                         uint32_t *value;
3833
3834                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3835                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3836                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3837                                 error = EINVAL;
3838                                 break;
3839                         }
3840                         inp->partial_delivery_point = *value;
3841                         break;
3842                 }
3843         case SCTP_FRAGMENT_INTERLEAVE:
3844                 /* not yet until we re-write sctp_recvmsg() */
3845                 {
3846                         uint32_t *level;
3847
3848                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3849                         if (*level == SCTP_FRAG_LEVEL_2) {
3850                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3851                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3852                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3853                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3854                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3855                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3856                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3857                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3858
3859                         } else {
3860                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3861                                 error = EINVAL;
3862                         }
3863                         break;
3864                 }
3865         case SCTP_INTERLEAVING_SUPPORTED:
3866                 {
3867                         struct sctp_assoc_value *av;
3868
3869                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3870                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3871
3872                         if (stcb) {
3873                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3874                                 error = EINVAL;
3875                                 SCTP_TCB_UNLOCK(stcb);
3876                         } else {
3877                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3878                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3879                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3880                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3881                                         SCTP_INP_WLOCK(inp);
3882                                         if (av->assoc_value == 0) {
3883                                                 inp->idata_supported = 0;
3884                                         } else {
3885                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3886                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3887                                                         inp->idata_supported = 1;
3888                                                 } else {
3889                                                         /*
3890                                                          * Must have Frag
3891                                                          * interleave and
3892                                                          * stream interleave
3893                                                          * on
3894                                                          */
3895                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3896                                                         error = EINVAL;
3897                                                 }
3898                                         }
3899                                         SCTP_INP_WUNLOCK(inp);
3900                                 } else {
3901                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3902                                         error = EINVAL;
3903                                 }
3904                         }
3905                         break;
3906                 }
3907         case SCTP_CMT_ON_OFF:
3908                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3909                         struct sctp_assoc_value *av;
3910
3911                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3912                         if (av->assoc_value > SCTP_CMT_MAX) {
3913                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3914                                 error = EINVAL;
3915                                 break;
3916                         }
3917                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3918                         if (stcb) {
3919                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3920                                 SCTP_TCB_UNLOCK(stcb);
3921                         } else {
3922                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3923                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3924                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3925                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3926                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3927                                         SCTP_INP_WLOCK(inp);
3928                                         inp->sctp_cmt_on_off = av->assoc_value;
3929                                         SCTP_INP_WUNLOCK(inp);
3930                                 }
3931                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3932                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3933                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3934                                         SCTP_INP_RLOCK(inp);
3935                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3936                                                 SCTP_TCB_LOCK(stcb);
3937                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3938                                                 SCTP_TCB_UNLOCK(stcb);
3939                                         }
3940                                         SCTP_INP_RUNLOCK(inp);
3941                                 }
3942                         }
3943                 } else {
3944                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3945                         error = ENOPROTOOPT;
3946                 }
3947                 break;
3948         case SCTP_PLUGGABLE_CC:
3949                 {
3950                         struct sctp_assoc_value *av;
3951                         struct sctp_nets *net;
3952
3953                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3954                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3955                             (av->assoc_value != SCTP_CC_HSTCP) &&
3956                             (av->assoc_value != SCTP_CC_HTCP) &&
3957                             (av->assoc_value != SCTP_CC_RTCC)) {
3958                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3959                                 error = EINVAL;
3960                                 break;
3961                         }
3962                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3963                         if (stcb) {
3964                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3965                                 stcb->asoc.congestion_control_module = av->assoc_value;
3966                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3967                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3968                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3969                                         }
3970                                 }
3971                                 SCTP_TCB_UNLOCK(stcb);
3972                         } else {
3973                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3974                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3975                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3976                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3977                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3978                                         SCTP_INP_WLOCK(inp);
3979                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3980                                         SCTP_INP_WUNLOCK(inp);
3981                                 }
3982                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3983                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3984                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3985                                         SCTP_INP_RLOCK(inp);
3986                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3987                                                 SCTP_TCB_LOCK(stcb);
3988                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3989                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3990                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3991                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3992                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3993                                                         }
3994                                                 }
3995                                                 SCTP_TCB_UNLOCK(stcb);
3996                                         }
3997                                         SCTP_INP_RUNLOCK(inp);
3998                                 }
3999                         }
4000                         break;
4001                 }
4002         case SCTP_CC_OPTION:
4003                 {
4004                         struct sctp_cc_option *cc_opt;
4005
4006                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4007                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4008                         if (stcb == NULL) {
4009                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4010                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4011                                         SCTP_INP_RLOCK(inp);
4012                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4013                                                 SCTP_TCB_LOCK(stcb);
4014                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4015                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4016                                                 }
4017                                                 SCTP_TCB_UNLOCK(stcb);
4018                                         }
4019                                         SCTP_INP_RUNLOCK(inp);
4020                                 } else {
4021                                         error = EINVAL;
4022                                 }
4023                         } else {
4024                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4025                                         error = ENOTSUP;
4026                                 } else {
4027                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4028                                             cc_opt);
4029                                 }
4030                                 SCTP_TCB_UNLOCK(stcb);
4031                         }
4032                         break;
4033                 }
4034         case SCTP_STREAM_SCHEDULER:
4035                 {
4036                         struct sctp_assoc_value *av;
4037
4038                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4039                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4040                             (av->assoc_value != SCTP_SS_RR) &&
4041                             (av->assoc_value != SCTP_SS_RR_PKT) &&
4042                             (av->assoc_value != SCTP_SS_PRIO) &&
4043                             (av->assoc_value != SCTP_SS_FB) &&
4044                             (av->assoc_value != SCTP_SS_FCFS)) {
4045                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4046                                 error = EINVAL;
4047                                 break;
4048                         }
4049                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4050                         if (stcb) {
4051                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4052                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4053                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4054                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4055                                 SCTP_TCB_UNLOCK(stcb);
4056                         } else {
4057                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4058                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4059                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4060                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4061                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4062                                         SCTP_INP_WLOCK(inp);
4063                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4064                                         SCTP_INP_WUNLOCK(inp);
4065                                 }
4066                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4067                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4068                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4069                                         SCTP_INP_RLOCK(inp);
4070                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4071                                                 SCTP_TCB_LOCK(stcb);
4072                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4073                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4074                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4075                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4076                                                 SCTP_TCB_UNLOCK(stcb);
4077                                         }
4078                                         SCTP_INP_RUNLOCK(inp);
4079                                 }
4080                         }
4081                         break;
4082                 }
4083         case SCTP_STREAM_SCHEDULER_VALUE:
4084                 {
4085                         struct sctp_stream_value *av;
4086
4087                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4088                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4089                         if (stcb) {
4090                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4091                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4092                                     av->stream_value) < 0)) {
4093                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4094                                         error = EINVAL;
4095                                 }
4096                                 SCTP_TCB_UNLOCK(stcb);
4097                         } else {
4098                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4099                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4100                                         SCTP_INP_RLOCK(inp);
4101                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4102                                                 SCTP_TCB_LOCK(stcb);
4103                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4104                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4105                                                             &stcb->asoc,
4106                                                             &stcb->asoc.strmout[av->stream_id],
4107                                                             av->stream_value);
4108                                                 }
4109                                                 SCTP_TCB_UNLOCK(stcb);
4110                                         }
4111                                         SCTP_INP_RUNLOCK(inp);
4112                                 } else {
4113                                         /*
4114                                          * Can't set stream value without
4115                                          * association
4116                                          */
4117                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4118                                         error = EINVAL;
4119                                 }
4120                         }
4121                         break;
4122                 }
4123         case SCTP_CLR_STAT_LOG:
4124                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4125                 error = EOPNOTSUPP;
4126                 break;
4127         case SCTP_CONTEXT:
4128                 {
4129                         struct sctp_assoc_value *av;
4130
4131                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4132                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4133
4134                         if (stcb) {
4135                                 stcb->asoc.context = av->assoc_value;
4136                                 SCTP_TCB_UNLOCK(stcb);
4137                         } else {
4138                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4139                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4140                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4141                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4142                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4143                                         SCTP_INP_WLOCK(inp);
4144                                         inp->sctp_context = av->assoc_value;
4145                                         SCTP_INP_WUNLOCK(inp);
4146                                 }
4147                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4148                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4149                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4150                                         SCTP_INP_RLOCK(inp);
4151                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4152                                                 SCTP_TCB_LOCK(stcb);
4153                                                 stcb->asoc.context = av->assoc_value;
4154                                                 SCTP_TCB_UNLOCK(stcb);
4155                                         }
4156                                         SCTP_INP_RUNLOCK(inp);
4157                                 }
4158                         }
4159                         break;
4160                 }
4161         case SCTP_VRF_ID:
4162                 {
4163                         uint32_t *default_vrfid;
4164
4165                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4166                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4167                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4168                                 error = EINVAL;
4169                                 break;
4170                         }
4171                         inp->def_vrf_id = *default_vrfid;
4172                         break;
4173                 }
4174         case SCTP_DEL_VRF_ID:
4175                 {
4176                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4177                         error = EOPNOTSUPP;
4178                         break;
4179                 }
4180         case SCTP_ADD_VRF_ID:
4181                 {
4182                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4183                         error = EOPNOTSUPP;
4184                         break;
4185                 }
4186         case SCTP_DELAYED_SACK:
4187                 {
4188                         struct sctp_sack_info *sack;
4189
4190                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4191                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4192                         if (sack->sack_delay) {
4193                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4194                                         error = EINVAL;
4195                                         if (stcb != NULL) {
4196                                                 SCTP_TCB_UNLOCK(stcb);
4197                                         }
4198                                         break;
4199                                 }
4200                         }
4201                         if (stcb) {
4202                                 if (sack->sack_delay) {
4203                                         stcb->asoc.delayed_ack = sack->sack_delay;
4204                                 }
4205                                 if (sack->sack_freq) {
4206                                         stcb->asoc.sack_freq = sack->sack_freq;
4207                                 }
4208                                 SCTP_TCB_UNLOCK(stcb);
4209                         } else {
4210                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4211                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4212                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4213                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4214                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4215                                         SCTP_INP_WLOCK(inp);
4216                                         if (sack->sack_delay) {
4217                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4218                                         }
4219                                         if (sack->sack_freq) {
4220                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4221                                         }
4222                                         SCTP_INP_WUNLOCK(inp);
4223                                 }
4224                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4225                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4226                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4227                                         SCTP_INP_RLOCK(inp);
4228                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4229                                                 SCTP_TCB_LOCK(stcb);
4230                                                 if (sack->sack_delay) {
4231                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4232                                                 }
4233                                                 if (sack->sack_freq) {
4234                                                         stcb->asoc.sack_freq = sack->sack_freq;
4235                                                 }
4236                                                 SCTP_TCB_UNLOCK(stcb);
4237                                         }
4238                                         SCTP_INP_RUNLOCK(inp);
4239                                 }
4240                         }
4241                         break;
4242                 }
4243         case SCTP_AUTH_CHUNK:
4244                 {
4245                         struct sctp_authchunk *sauth;
4246
4247                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4248
4249                         SCTP_INP_WLOCK(inp);
4250                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4251                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4252                                 error = EINVAL;
4253                         } else {
4254                                 inp->auth_supported = 1;
4255                         }
4256                         SCTP_INP_WUNLOCK(inp);
4257                         break;
4258                 }
4259         case SCTP_AUTH_KEY:
4260                 {
4261                         struct sctp_authkey *sca;
4262                         struct sctp_keyhead *shared_keys;
4263                         sctp_sharedkey_t *shared_key;
4264                         sctp_key_t *key = NULL;
4265                         size_t size;
4266
4267                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4268                         if (sca->sca_keylength == 0) {
4269                                 size = optsize - sizeof(struct sctp_authkey);
4270                         } else {
4271                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4272                                         size = sca->sca_keylength;
4273                                 } else {
4274                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4275                                         error = EINVAL;
4276                                         break;
4277                                 }
4278                         }
4279                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4280
4281                         if (stcb) {
4282                                 shared_keys = &stcb->asoc.shared_keys;
4283                                 /* clear the cached keys for this key id */
4284                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4285                                 /*
4286                                  * create the new shared key and
4287                                  * insert/replace it
4288                                  */
4289                                 if (size > 0) {
4290                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4291                                         if (key == NULL) {
4292                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4293                                                 error = ENOMEM;
4294                                                 SCTP_TCB_UNLOCK(stcb);
4295                                                 break;
4296                                         }
4297                                 }
4298                                 shared_key = sctp_alloc_sharedkey();
4299                                 if (shared_key == NULL) {
4300                                         sctp_free_key(key);
4301                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4302                                         error = ENOMEM;
4303                                         SCTP_TCB_UNLOCK(stcb);
4304                                         break;
4305                                 }
4306                                 shared_key->key = key;
4307                                 shared_key->keyid = sca->sca_keynumber;
4308                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4309                                 SCTP_TCB_UNLOCK(stcb);
4310                         } else {
4311                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4312                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4313                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4314                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4315                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4316                                         SCTP_INP_WLOCK(inp);
4317                                         shared_keys = &inp->sctp_ep.shared_keys;
4318                                         /*
4319                                          * clear the cached keys on all
4320                                          * assocs for this key id
4321                                          */
4322                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4323                                         /*
4324                                          * create the new shared key and
4325                                          * insert/replace it
4326                                          */
4327                                         if (size > 0) {
4328                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4329                                                 if (key == NULL) {
4330                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4331                                                         error = ENOMEM;
4332                                                         SCTP_INP_WUNLOCK(inp);
4333                                                         break;
4334                                                 }
4335                                         }
4336                                         shared_key = sctp_alloc_sharedkey();
4337                                         if (shared_key == NULL) {
4338                                                 sctp_free_key(key);
4339                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4340                                                 error = ENOMEM;
4341                                                 SCTP_INP_WUNLOCK(inp);
4342                                                 break;
4343                                         }
4344                                         shared_key->key = key;
4345                                         shared_key->keyid = sca->sca_keynumber;
4346                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4347                                         SCTP_INP_WUNLOCK(inp);
4348                                 }
4349                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4350                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4351                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4352                                         SCTP_INP_RLOCK(inp);
4353                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4354                                                 SCTP_TCB_LOCK(stcb);
4355                                                 shared_keys = &stcb->asoc.shared_keys;
4356                                                 /*
4357                                                  * clear the cached keys for
4358                                                  * this key id
4359                                                  */
4360                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4361                                                 /*
4362                                                  * create the new shared key
4363                                                  * and insert/replace it
4364                                                  */
4365                                                 if (size > 0) {
4366                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4367                                                         if (key == NULL) {
4368                                                                 SCTP_TCB_UNLOCK(stcb);
4369                                                                 continue;
4370                                                         }
4371                                                 }
4372                                                 shared_key = sctp_alloc_sharedkey();
4373                                                 if (shared_key == NULL) {
4374                                                         sctp_free_key(key);
4375                                                         SCTP_TCB_UNLOCK(stcb);
4376                                                         continue;
4377                                                 }
4378                                                 shared_key->key = key;
4379                                                 shared_key->keyid = sca->sca_keynumber;
4380                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4381                                                 SCTP_TCB_UNLOCK(stcb);
4382                                         }
4383                                         SCTP_INP_RUNLOCK(inp);
4384                                 }
4385                         }
4386                         break;
4387                 }
4388         case SCTP_HMAC_IDENT:
4389                 {
4390                         struct sctp_hmacalgo *shmac;
4391                         sctp_hmaclist_t *hmaclist;
4392                         uint16_t hmacid;
4393                         uint32_t i;
4394
4395                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4396                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4397                             (shmac->shmac_number_of_idents > 0xffff)) {
4398                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4399                                 error = EINVAL;
4400                                 break;
4401                         }
4402
4403                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4404                         if (hmaclist == NULL) {
4405                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4406                                 error = ENOMEM;
4407                                 break;
4408                         }
4409                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4410                                 hmacid = shmac->shmac_idents[i];
4411                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4412                                          /* invalid HMACs were found */ ;
4413                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4414                                         error = EINVAL;
4415                                         sctp_free_hmaclist(hmaclist);
4416                                         goto sctp_set_hmac_done;
4417                                 }
4418                         }
4419                         for (i = 0; i < hmaclist->num_algo; i++) {
4420                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4421                                         /* already in list */
4422                                         break;
4423                                 }
4424                         }
4425                         if (i == hmaclist->num_algo) {
4426                                 /* not found in list */
4427                                 sctp_free_hmaclist(hmaclist);
4428                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4429                                 error = EINVAL;
4430                                 break;
4431                         }
4432                         /* set it on the endpoint */
4433                         SCTP_INP_WLOCK(inp);
4434                         if (inp->sctp_ep.local_hmacs)
4435                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4436                         inp->sctp_ep.local_hmacs = hmaclist;
4437                         SCTP_INP_WUNLOCK(inp);
4438         sctp_set_hmac_done:
4439                         break;
4440                 }
4441         case SCTP_AUTH_ACTIVE_KEY:
4442                 {
4443                         struct sctp_authkeyid *scact;
4444
4445                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4446                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4447
4448                         /* set the active key on the right place */
4449                         if (stcb) {
4450                                 /* set the active key on the assoc */
4451                                 if (sctp_auth_setactivekey(stcb,
4452                                     scact->scact_keynumber)) {
4453                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4454                                             SCTP_FROM_SCTP_USRREQ,
4455                                             EINVAL);
4456                                         error = EINVAL;
4457                                 }
4458                                 SCTP_TCB_UNLOCK(stcb);
4459                         } else {
4460                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4461                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4462                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4463                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4464                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4465                                         SCTP_INP_WLOCK(inp);
4466                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4467                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4468                                                 error = EINVAL;
4469                                         }
4470                                         SCTP_INP_WUNLOCK(inp);
4471                                 }
4472                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4473                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4474                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4475                                         SCTP_INP_RLOCK(inp);
4476                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4477                                                 SCTP_TCB_LOCK(stcb);
4478                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4479                                                 SCTP_TCB_UNLOCK(stcb);
4480                                         }
4481                                         SCTP_INP_RUNLOCK(inp);
4482                                 }
4483                         }
4484                         break;
4485                 }
4486         case SCTP_AUTH_DELETE_KEY:
4487                 {
4488                         struct sctp_authkeyid *scdel;
4489
4490                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4491                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4492
4493                         /* delete the key from the right place */
4494                         if (stcb) {
4495                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4496                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4497                                         error = EINVAL;
4498                                 }
4499                                 SCTP_TCB_UNLOCK(stcb);
4500                         } else {
4501                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4502                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4503                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4504                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4505                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4506                                         SCTP_INP_WLOCK(inp);
4507                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4508                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4509                                                 error = EINVAL;
4510                                         }
4511                                         SCTP_INP_WUNLOCK(inp);
4512                                 }
4513                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4514                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4515                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4516                                         SCTP_INP_RLOCK(inp);
4517                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4518                                                 SCTP_TCB_LOCK(stcb);
4519                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4520                                                 SCTP_TCB_UNLOCK(stcb);
4521                                         }
4522                                         SCTP_INP_RUNLOCK(inp);
4523                                 }
4524                         }
4525                         break;
4526                 }
4527         case SCTP_AUTH_DEACTIVATE_KEY:
4528                 {
4529                         struct sctp_authkeyid *keyid;
4530
4531                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4532                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4533
4534                         /* deactivate the key from the right place */
4535                         if (stcb) {
4536                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4537                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4538                                         error = EINVAL;
4539                                 }
4540                                 SCTP_TCB_UNLOCK(stcb);
4541                         } else {
4542                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4543                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4544                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4545                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4546                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4547                                         SCTP_INP_WLOCK(inp);
4548                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4549                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4550                                                 error = EINVAL;
4551                                         }
4552                                         SCTP_INP_WUNLOCK(inp);
4553                                 }
4554                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4555                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4556                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4557                                         SCTP_INP_RLOCK(inp);
4558                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4559                                                 SCTP_TCB_LOCK(stcb);
4560                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4561                                                 SCTP_TCB_UNLOCK(stcb);
4562                                         }
4563                                         SCTP_INP_RUNLOCK(inp);
4564                                 }
4565                         }
4566                         break;
4567                 }
4568         case SCTP_ENABLE_STREAM_RESET:
4569                 {
4570                         struct sctp_assoc_value *av;
4571
4572                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4573                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4574                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4575                                 error = EINVAL;
4576                                 break;
4577                         }
4578                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4579                         if (stcb) {
4580                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4581                                 SCTP_TCB_UNLOCK(stcb);
4582                         } else {
4583                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4584                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4585                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4586                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4587                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4588                                         SCTP_INP_WLOCK(inp);
4589                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4590                                         SCTP_INP_WUNLOCK(inp);
4591                                 }
4592                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4593                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4594                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4595                                         SCTP_INP_RLOCK(inp);
4596                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4597                                                 SCTP_TCB_LOCK(stcb);
4598                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4599                                                 SCTP_TCB_UNLOCK(stcb);
4600                                         }
4601                                         SCTP_INP_RUNLOCK(inp);
4602                                 }
4603                         }
4604                         break;
4605                 }
4606         case SCTP_RESET_STREAMS:
4607                 {
4608                         struct sctp_reset_streams *strrst;
4609                         int i, send_out = 0;
4610                         int send_in = 0;
4611
4612                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4613                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4614                         if (stcb == NULL) {
4615                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4616                                 error = ENOENT;
4617                                 break;
4618                         }
4619                         if (stcb->asoc.reconfig_supported == 0) {
4620                                 /*
4621                                  * Peer does not support the chunk type.
4622                                  */
4623                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4624                                 error = EOPNOTSUPP;
4625                                 SCTP_TCB_UNLOCK(stcb);
4626                                 break;
4627                         }
4628                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4629                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4630                                 error = EINVAL;
4631                                 SCTP_TCB_UNLOCK(stcb);
4632                                 break;
4633                         }
4634                         if (sizeof(struct sctp_reset_streams) +
4635                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4636                                 error = EINVAL;
4637                                 SCTP_TCB_UNLOCK(stcb);
4638                                 break;
4639                         }
4640                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4641                                 send_in = 1;
4642                                 if (stcb->asoc.stream_reset_outstanding) {
4643                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4644                                         error = EALREADY;
4645                                         SCTP_TCB_UNLOCK(stcb);
4646                                         break;
4647                                 }
4648                         }
4649                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4650                                 send_out = 1;
4651                         }
4652                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4653                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4654                                 error = ENOMEM;
4655                                 SCTP_TCB_UNLOCK(stcb);
4656                                 break;
4657                         }
4658                         if ((send_in == 0) && (send_out == 0)) {
4659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4660                                 error = EINVAL;
4661                                 SCTP_TCB_UNLOCK(stcb);
4662                                 break;
4663                         }
4664                         for (i = 0; i < strrst->srs_number_streams; i++) {
4665                                 if ((send_in) &&
4666                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4667                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4668                                         error = EINVAL;
4669                                         break;
4670                                 }
4671                                 if ((send_out) &&
4672                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4673                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4674                                         error = EINVAL;
4675                                         break;
4676                                 }
4677                         }
4678                         if (error) {
4679                                 SCTP_TCB_UNLOCK(stcb);
4680                                 break;
4681                         }
4682                         if (send_out) {
4683                                 int cnt;
4684                                 uint16_t strm;
4685
4686                                 if (strrst->srs_number_streams) {
4687                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4688                                                 strm = strrst->srs_stream_list[i];
4689                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4690                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4691                                                         cnt++;
4692                                                 }
4693                                         }
4694                                 } else {
4695                                         /* Its all */
4696                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4697                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4698                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4699                                                         cnt++;
4700                                                 }
4701                                         }
4702                                 }
4703                         }
4704                         if (send_in) {
4705                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4706                                     strrst->srs_stream_list,
4707                                     send_in, 0, 0, 0, 0, 0);
4708                         } else {
4709                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4710                         }
4711                         if (error == 0) {
4712                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4713                         } else {
4714                                 /*
4715                                  * For outgoing streams don't report any
4716                                  * problems in sending the request to the
4717                                  * application. XXX: Double check resetting
4718                                  * incoming streams.
4719                                  */
4720                                 error = 0;
4721                         }
4722                         SCTP_TCB_UNLOCK(stcb);
4723                         break;
4724                 }
4725         case SCTP_ADD_STREAMS:
4726                 {
4727                         struct sctp_add_streams *stradd;
4728                         uint8_t addstream = 0;
4729                         uint16_t add_o_strmcnt = 0;
4730                         uint16_t add_i_strmcnt = 0;
4731
4732                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4733                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4734                         if (stcb == NULL) {
4735                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4736                                 error = ENOENT;
4737                                 break;
4738                         }
4739                         if (stcb->asoc.reconfig_supported == 0) {
4740                                 /*
4741                                  * Peer does not support the chunk type.
4742                                  */
4743                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4744                                 error = EOPNOTSUPP;
4745                                 SCTP_TCB_UNLOCK(stcb);
4746                                 break;
4747                         }
4748                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4749                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4750                                 error = EINVAL;
4751                                 SCTP_TCB_UNLOCK(stcb);
4752                                 break;
4753                         }
4754                         if (stcb->asoc.stream_reset_outstanding) {
4755                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4756                                 error = EALREADY;
4757                                 SCTP_TCB_UNLOCK(stcb);
4758                                 break;
4759                         }
4760                         if ((stradd->sas_outstrms == 0) &&
4761                             (stradd->sas_instrms == 0)) {
4762                                 error = EINVAL;
4763                                 goto skip_stuff;
4764                         }
4765                         if (stradd->sas_outstrms) {
4766                                 addstream = 1;
4767                                 /* We allocate here */
4768                                 add_o_strmcnt = stradd->sas_outstrms;
4769                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4770                                         /* You can't have more than 64k */
4771                                         error = EINVAL;
4772                                         goto skip_stuff;
4773                                 }
4774                         }
4775                         if (stradd->sas_instrms) {
4776                                 int cnt;
4777
4778                                 addstream |= 2;
4779                                 /*
4780                                  * We allocate inside
4781                                  * sctp_send_str_reset_req()
4782                                  */
4783                                 add_i_strmcnt = stradd->sas_instrms;
4784                                 cnt = add_i_strmcnt;
4785                                 cnt += stcb->asoc.streamincnt;
4786                                 if (cnt > 0x0000ffff) {
4787                                         /* You can't have more than 64k */
4788                                         error = EINVAL;
4789                                         goto skip_stuff;
4790                                 }
4791                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4792                                         /* More than you are allowed */
4793                                         error = EINVAL;
4794                                         goto skip_stuff;
4795                                 }
4796                         }
4797                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4798                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4799         skip_stuff:
4800                         SCTP_TCB_UNLOCK(stcb);
4801                         break;
4802                 }
4803         case SCTP_RESET_ASSOC:
4804                 {
4805                         int i;
4806                         uint32_t *value;
4807
4808                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4809                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4810                         if (stcb == NULL) {
4811                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4812                                 error = ENOENT;
4813                                 break;
4814                         }
4815                         if (stcb->asoc.reconfig_supported == 0) {
4816                                 /*
4817                                  * Peer does not support the chunk type.
4818                                  */
4819                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4820                                 error = EOPNOTSUPP;
4821                                 SCTP_TCB_UNLOCK(stcb);
4822                                 break;
4823                         }
4824                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4825                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4826                                 error = EINVAL;
4827                                 SCTP_TCB_UNLOCK(stcb);
4828                                 break;
4829                         }
4830                         if (stcb->asoc.stream_reset_outstanding) {
4831                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4832                                 error = EALREADY;
4833                                 SCTP_TCB_UNLOCK(stcb);
4834                                 break;
4835                         }
4836                         /*
4837                          * Is there any data pending in the send or sent
4838                          * queues?
4839                          */
4840                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4841                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4842                 busy_out:
4843                                 error = EBUSY;
4844                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4845                                 SCTP_TCB_UNLOCK(stcb);
4846                                 break;
4847                         }
4848                         /* Do any streams have data queued? */
4849                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4850                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4851                                         goto busy_out;
4852                                 }
4853                         }
4854                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4855                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4856                         SCTP_TCB_UNLOCK(stcb);
4857                         break;
4858                 }
4859         case SCTP_CONNECT_X:
4860                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4861                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4862                         error = EINVAL;
4863                         break;
4864                 }
4865                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4866                 break;
4867         case SCTP_CONNECT_X_DELAYED:
4868                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4869                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4870                         error = EINVAL;
4871                         break;
4872                 }
4873                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4874                 break;
4875         case SCTP_CONNECT_X_COMPLETE:
4876                 {
4877                         struct sockaddr *sa;
4878
4879                         /* FIXME MT: check correct? */
4880                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4881
4882                         /* find tcb */
4883                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4884                                 SCTP_INP_RLOCK(inp);
4885                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4886                                 if (stcb) {
4887                                         SCTP_TCB_LOCK(stcb);
4888                                 }
4889                                 SCTP_INP_RUNLOCK(inp);
4890                         } else {
4891                                 /*
4892                                  * We increment here since
4893                                  * sctp_findassociation_ep_addr() wil do a
4894                                  * decrement if it finds the stcb as long as
4895                                  * the locked tcb (last argument) is NOT a
4896                                  * TCB.. aka NULL.
4897                                  */
4898                                 SCTP_INP_INCR_REF(inp);
4899                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4900                                 if (stcb == NULL) {
4901                                         SCTP_INP_DECR_REF(inp);
4902                                 }
4903                         }
4904
4905                         if (stcb == NULL) {
4906                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4907                                 error = ENOENT;
4908                                 break;
4909                         }
4910                         if (stcb->asoc.delayed_connection == 1) {
4911                                 stcb->asoc.delayed_connection = 0;
4912                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4913                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4914                                     stcb->asoc.primary_destination,
4915                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4916                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4917                         } else {
4918                                 /*
4919                                  * already expired or did not use delayed
4920                                  * connectx
4921                                  */
4922                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4923                                 error = EALREADY;
4924                         }
4925                         SCTP_TCB_UNLOCK(stcb);
4926                         break;
4927                 }
4928         case SCTP_MAX_BURST:
4929                 {
4930                         struct sctp_assoc_value *av;
4931
4932                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4933                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4934
4935                         if (stcb) {
4936                                 stcb->asoc.max_burst = av->assoc_value;
4937                                 SCTP_TCB_UNLOCK(stcb);
4938                         } else {
4939                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4940                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4941                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4942                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4943                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4944                                         SCTP_INP_WLOCK(inp);
4945                                         inp->sctp_ep.max_burst = av->assoc_value;
4946                                         SCTP_INP_WUNLOCK(inp);
4947                                 }
4948                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4949                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4950                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4951                                         SCTP_INP_RLOCK(inp);
4952                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4953                                                 SCTP_TCB_LOCK(stcb);
4954                                                 stcb->asoc.max_burst = av->assoc_value;
4955                                                 SCTP_TCB_UNLOCK(stcb);
4956                                         }
4957                                         SCTP_INP_RUNLOCK(inp);
4958                                 }
4959                         }
4960                         break;
4961                 }
4962         case SCTP_MAXSEG:
4963                 {
4964                         struct sctp_assoc_value *av;
4965
4966                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4967                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4968
4969                         if (stcb) {
4970                                 stcb->asoc.sctp_frag_point = av->assoc_value;
4971                                 SCTP_TCB_UNLOCK(stcb);
4972                         } else {
4973                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4974                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4975                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4976                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
4977                                         SCTP_INP_WLOCK(inp);
4978                                         inp->sctp_frag_point = av->assoc_value;
4979                                         SCTP_INP_WUNLOCK(inp);
4980                                 } else {
4981                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4982                                         error = EINVAL;
4983                                 }
4984                         }
4985                         break;
4986                 }
4987         case SCTP_EVENTS:
4988                 {
4989                         struct sctp_event_subscribe *events;
4990
4991                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4992
4993                         SCTP_INP_WLOCK(inp);
4994                         if (events->sctp_data_io_event) {
4995                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4996                         } else {
4997                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4998                         }
4999
5000                         if (events->sctp_association_event) {
5001                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5002                         } else {
5003                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5004                         }
5005
5006                         if (events->sctp_address_event) {
5007                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5008                         } else {
5009                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5010                         }
5011
5012                         if (events->sctp_send_failure_event) {
5013                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5014                         } else {
5015                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5016                         }
5017
5018                         if (events->sctp_peer_error_event) {
5019                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5020                         } else {
5021                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5022                         }
5023
5024                         if (events->sctp_shutdown_event) {
5025                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5026                         } else {
5027                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5028                         }
5029
5030                         if (events->sctp_partial_delivery_event) {
5031                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5032                         } else {
5033                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5034                         }
5035
5036                         if (events->sctp_adaptation_layer_event) {
5037                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5038                         } else {
5039                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5040                         }
5041
5042                         if (events->sctp_authentication_event) {
5043                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5044                         } else {
5045                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5046                         }
5047
5048                         if (events->sctp_sender_dry_event) {
5049                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5050                         } else {
5051                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5052                         }
5053
5054                         if (events->sctp_stream_reset_event) {
5055                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5056                         } else {
5057                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5058                         }
5059
5060                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5061                                 SCTP_TCB_LOCK(stcb);
5062                                 if (events->sctp_association_event) {
5063                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5064                                 } else {
5065                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5066                                 }
5067                                 if (events->sctp_address_event) {
5068                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5069                                 } else {
5070                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5071                                 }
5072                                 if (events->sctp_send_failure_event) {
5073                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5074                                 } else {
5075                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5076                                 }
5077                                 if (events->sctp_peer_error_event) {
5078                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5079                                 } else {
5080                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5081                                 }
5082                                 if (events->sctp_shutdown_event) {
5083                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5084                                 } else {
5085                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5086                                 }
5087                                 if (events->sctp_partial_delivery_event) {
5088                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5089                                 } else {
5090                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5091                                 }
5092                                 if (events->sctp_adaptation_layer_event) {
5093                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5094                                 } else {
5095                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5096                                 }
5097                                 if (events->sctp_authentication_event) {
5098                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5099                                 } else {
5100                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5101                                 }
5102                                 if (events->sctp_sender_dry_event) {
5103                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5104                                 } else {
5105                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5106                                 }
5107                                 if (events->sctp_stream_reset_event) {
5108                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5109                                 } else {
5110                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5111                                 }
5112                                 SCTP_TCB_UNLOCK(stcb);
5113                         }
5114                         /*
5115                          * Send up the sender dry event only for 1-to-1
5116                          * style sockets.
5117                          */
5118                         if (events->sctp_sender_dry_event) {
5119                                 if (((inp->sctp_flags & (SCTP_PCB_FLAGS_TCPTYPE | SCTP_PCB_FLAGS_IN_TCPPOOL)) != 0) &&
5120                                     !SCTP_IS_LISTENING(inp)) {
5121                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5122                                         if (stcb != NULL) {
5123                                                 SCTP_TCB_LOCK(stcb);
5124                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5125                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5126                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5127                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5128                                                 }
5129                                                 SCTP_TCB_UNLOCK(stcb);
5130                                         }
5131                                 }
5132                         }
5133                         SCTP_INP_WUNLOCK(inp);
5134                         break;
5135                 }
5136         case SCTP_ADAPTATION_LAYER:
5137                 {
5138                         struct sctp_setadaptation *adap_bits;
5139
5140                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5141                         SCTP_INP_WLOCK(inp);
5142                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5143                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5144                         SCTP_INP_WUNLOCK(inp);
5145                         break;
5146                 }
5147 #ifdef SCTP_DEBUG
5148         case SCTP_SET_INITIAL_DBG_SEQ:
5149                 {
5150                         uint32_t *vvv;
5151
5152                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5153                         SCTP_INP_WLOCK(inp);
5154                         inp->sctp_ep.initial_sequence_debug = *vvv;
5155                         SCTP_INP_WUNLOCK(inp);
5156                         break;
5157                 }
5158 #endif
5159         case SCTP_DEFAULT_SEND_PARAM:
5160                 {
5161                         struct sctp_sndrcvinfo *s_info;
5162
5163                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5164                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5165
5166                         if (stcb) {
5167                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5168                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5169                                 } else {
5170                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5171                                         error = EINVAL;
5172                                 }
5173                                 SCTP_TCB_UNLOCK(stcb);
5174                         } else {
5175                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5176                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5177                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5178                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5179                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5180                                         SCTP_INP_WLOCK(inp);
5181                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5182                                         SCTP_INP_WUNLOCK(inp);
5183                                 }
5184                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5185                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5186                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5187                                         SCTP_INP_RLOCK(inp);
5188                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5189                                                 SCTP_TCB_LOCK(stcb);
5190                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5191                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5192                                                 }
5193                                                 SCTP_TCB_UNLOCK(stcb);
5194                                         }
5195                                         SCTP_INP_RUNLOCK(inp);
5196                                 }
5197                         }
5198                         break;
5199                 }
5200         case SCTP_PEER_ADDR_PARAMS:
5201                 {
5202                         struct sctp_paddrparams *paddrp;
5203                         struct sctp_nets *net;
5204                         struct sockaddr *addr;
5205 #if defined(INET) && defined(INET6)
5206                         struct sockaddr_in sin_store;
5207 #endif
5208
5209                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5210                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5211
5212 #if defined(INET) && defined(INET6)
5213                         if (paddrp->spp_address.ss_family == AF_INET6) {
5214                                 struct sockaddr_in6 *sin6;
5215
5216                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5217                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5218                                         in6_sin6_2_sin(&sin_store, sin6);
5219                                         addr = (struct sockaddr *)&sin_store;
5220                                 } else {
5221                                         addr = (struct sockaddr *)&paddrp->spp_address;
5222                                 }
5223                         } else {
5224                                 addr = (struct sockaddr *)&paddrp->spp_address;
5225                         }
5226 #else
5227                         addr = (struct sockaddr *)&paddrp->spp_address;
5228 #endif
5229                         if (stcb != NULL) {
5230                                 net = sctp_findnet(stcb, addr);
5231                         } else {
5232                                 /*
5233                                  * We increment here since
5234                                  * sctp_findassociation_ep_addr() wil do a
5235                                  * decrement if it finds the stcb as long as
5236                                  * the locked tcb (last argument) is NOT a
5237                                  * TCB.. aka NULL.
5238                                  */
5239                                 net = NULL;
5240                                 SCTP_INP_INCR_REF(inp);
5241                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5242                                     &net, NULL, NULL);
5243                                 if (stcb == NULL) {
5244                                         SCTP_INP_DECR_REF(inp);
5245                                 }
5246                         }
5247                         if ((stcb != NULL) && (net == NULL)) {
5248 #ifdef INET
5249                                 if (addr->sa_family == AF_INET) {
5250                                         struct sockaddr_in *sin;
5251
5252                                         sin = (struct sockaddr_in *)addr;
5253                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5254                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5255                                                 SCTP_TCB_UNLOCK(stcb);
5256                                                 error = EINVAL;
5257                                                 break;
5258                                         }
5259                                 } else
5260 #endif
5261 #ifdef INET6
5262                                 if (addr->sa_family == AF_INET6) {
5263                                         struct sockaddr_in6 *sin6;
5264
5265                                         sin6 = (struct sockaddr_in6 *)addr;
5266                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5267                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5268                                                 SCTP_TCB_UNLOCK(stcb);
5269                                                 error = EINVAL;
5270                                                 break;
5271                                         }
5272                                 } else
5273 #endif
5274                                 {
5275                                         error = EAFNOSUPPORT;
5276                                         SCTP_TCB_UNLOCK(stcb);
5277                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5278                                         break;
5279                                 }
5280                         }
5281                         /* sanity checks */
5282                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5283                                 if (stcb)
5284                                         SCTP_TCB_UNLOCK(stcb);
5285                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5286                                 return (EINVAL);
5287                         }
5288
5289                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5290                                 if (stcb)
5291                                         SCTP_TCB_UNLOCK(stcb);
5292                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5293                                 return (EINVAL);
5294                         }
5295                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5296                             (paddrp->spp_pathmtu > 0) &&
5297                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5298                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5299                                 if (stcb)
5300                                         SCTP_TCB_UNLOCK(stcb);
5301                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5302                                 return (EINVAL);
5303                         }
5304
5305                         if (stcb != NULL) {
5306                                 /************************TCB SPECIFIC SET ******************/
5307                                 if (net != NULL) {
5308                                         /************************NET SPECIFIC SET ******************/
5309                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5310                                                 if (((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) &&
5311                                                     ((net->dest_state & SCTP_ADDR_NOHB) == 0)) {
5312                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5313                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5314                                                 }
5315                                                 net->dest_state |= SCTP_ADDR_NOHB;
5316                                         }
5317                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5318                                                 if (paddrp->spp_hbinterval) {
5319                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5320                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5321                                                         net->heart_beat_delay = 0;
5322                                                 }
5323                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5324                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5325                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5326                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5327                                         }
5328                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5329                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5330                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5331                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5332                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5333                                                 }
5334                                         }
5335                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5336                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5337                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5338                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5339                                                 }
5340                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5341                                                 if (paddrp->spp_pathmtu > 0) {
5342                                                         net->mtu = paddrp->spp_pathmtu;
5343                                                         switch (net->ro._l_addr.sa.sa_family) {
5344 #ifdef INET
5345                                                         case AF_INET:
5346                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5347                                                                 break;
5348 #endif
5349 #ifdef INET6
5350                                                         case AF_INET6:
5351                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5352                                                                 break;
5353 #endif
5354                                                         default:
5355                                                                 break;
5356                                                         }
5357                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5358                                                                 sctp_pathmtu_adjustment(stcb, net->mtu, true);
5359                                                         }
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 > 0) {
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) == 0) {
5468                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5469                                                                 if ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) {
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) {
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                                                         if (paddrp->spp_pathmtu > 0) {
5486                                                                 net->mtu = paddrp->spp_pathmtu;
5487                                                                 switch (net->ro._l_addr.sa.sa_family) {
5488 #ifdef INET
5489                                                                 case AF_INET:
5490                                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5491                                                                         break;
5492 #endif
5493 #ifdef INET6
5494                                                                 case AF_INET6:
5495                                                                         net->mtu += SCTP_MIN_OVERHEAD;
5496                                                                         break;
5497 #endif
5498                                                                 default:
5499                                                                         break;
5500                                                                 }
5501                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5502                                                                         sctp_pathmtu_adjustment(stcb, net->mtu, true);
5503                                                                 }
5504                                                         }
5505                                                 }
5506                                                 if (paddrp->spp_pathmtu > 0) {
5507                                                         stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5508                                                 }
5509                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5510                                         }
5511                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5512                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5513                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5514                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5515                                                         }
5516                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5517                                                 }
5518                                                 stcb->asoc.default_mtu = 0;
5519                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5520                                         }
5521                                         if (paddrp->spp_flags & SPP_DSCP) {
5522                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5523                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5524                                                         net->dscp |= 0x01;
5525                                                 }
5526                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5527                                                 stcb->asoc.default_dscp |= 0x01;
5528                                         }
5529 #ifdef INET6
5530                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5531                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5532                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5533                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5534                                                                 net->flowlabel |= 0x80000000;
5535                                                         }
5536                                                 }
5537                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5538                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5539                                         }
5540 #endif
5541                                 }
5542                                 SCTP_TCB_UNLOCK(stcb);
5543                         } else {
5544                                 /************************NO TCB, SET TO default stuff ******************/
5545                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5546                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5547                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5548                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5549                                         SCTP_INP_WLOCK(inp);
5550                                         /*
5551                                          * For the TOS/FLOWLABEL stuff you
5552                                          * set it with the options on the
5553                                          * socket
5554                                          */
5555                                         if (paddrp->spp_pathmaxrxt > 0) {
5556                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5557                                         }
5558
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 != 0) {
5562                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5563                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5564                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5565                                         }
5566
5567                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5568                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5569                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5570                                                 } else if (paddrp->spp_hbinterval) {
5571                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5572                                                 }
5573                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5574                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5575                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5576                                         }
5577                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5578                                                 inp->sctp_ep.default_mtu = 0;
5579                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5580                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5581                                                 if (paddrp->spp_pathmtu > 0) {
5582                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5583                                                 }
5584                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5585                                         }
5586                                         if (paddrp->spp_flags & SPP_DSCP) {
5587                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5588                                                 inp->sctp_ep.default_dscp |= 0x01;
5589                                         }
5590 #ifdef INET6
5591                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5592                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5593                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5594                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5595                                                 }
5596                                         }
5597 #endif
5598                                         SCTP_INP_WUNLOCK(inp);
5599                                 } else {
5600                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5601                                         error = EINVAL;
5602                                 }
5603                         }
5604                         break;
5605                 }
5606         case SCTP_RTOINFO:
5607                 {
5608                         struct sctp_rtoinfo *srto;
5609                         uint32_t new_init, new_min, new_max;
5610
5611                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5612                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5613
5614                         if (stcb) {
5615                                 if (srto->srto_initial)
5616                                         new_init = srto->srto_initial;
5617                                 else
5618                                         new_init = stcb->asoc.initial_rto;
5619                                 if (srto->srto_max)
5620                                         new_max = srto->srto_max;
5621                                 else
5622                                         new_max = stcb->asoc.maxrto;
5623                                 if (srto->srto_min)
5624                                         new_min = srto->srto_min;
5625                                 else
5626                                         new_min = stcb->asoc.minrto;
5627                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5628                                         stcb->asoc.initial_rto = new_init;
5629                                         stcb->asoc.maxrto = new_max;
5630                                         stcb->asoc.minrto = new_min;
5631                                 } else {
5632                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5633                                         error = EINVAL;
5634                                 }
5635                                 SCTP_TCB_UNLOCK(stcb);
5636                         } else {
5637                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5638                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5639                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5640                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5641                                         SCTP_INP_WLOCK(inp);
5642                                         if (srto->srto_initial)
5643                                                 new_init = srto->srto_initial;
5644                                         else
5645                                                 new_init = inp->sctp_ep.initial_rto;
5646                                         if (srto->srto_max)
5647                                                 new_max = srto->srto_max;
5648                                         else
5649                                                 new_max = inp->sctp_ep.sctp_maxrto;
5650                                         if (srto->srto_min)
5651                                                 new_min = srto->srto_min;
5652                                         else
5653                                                 new_min = inp->sctp_ep.sctp_minrto;
5654                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5655                                                 inp->sctp_ep.initial_rto = new_init;
5656                                                 inp->sctp_ep.sctp_maxrto = new_max;
5657                                                 inp->sctp_ep.sctp_minrto = new_min;
5658                                         } else {
5659                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5660                                                 error = EINVAL;
5661                                         }
5662                                         SCTP_INP_WUNLOCK(inp);
5663                                 } else {
5664                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5665                                         error = EINVAL;
5666                                 }
5667                         }
5668                         break;
5669                 }
5670         case SCTP_ASSOCINFO:
5671                 {
5672                         struct sctp_assocparams *sasoc;
5673
5674                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5675                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5676                         if (sasoc->sasoc_cookie_life > 0) {
5677                                 /* boundary check the cookie life */
5678                                 if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
5679                                         sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
5680                                 }
5681                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5682                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5683                                 }
5684                         }
5685                         if (stcb) {
5686                                 if (sasoc->sasoc_asocmaxrxt > 0) {
5687                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5688                                 }
5689                                 if (sasoc->sasoc_cookie_life > 0) {
5690                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5691                                 }
5692                                 SCTP_TCB_UNLOCK(stcb);
5693                         } else {
5694                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5695                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5696                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5697                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5698                                         SCTP_INP_WLOCK(inp);
5699                                         if (sasoc->sasoc_asocmaxrxt > 0) {
5700                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5701                                         }
5702                                         if (sasoc->sasoc_cookie_life > 0) {
5703                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5704                                         }
5705                                         SCTP_INP_WUNLOCK(inp);
5706                                 } else {
5707                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5708                                         error = EINVAL;
5709                                 }
5710                         }
5711                         break;
5712                 }
5713         case SCTP_INITMSG:
5714                 {
5715                         struct sctp_initmsg *sinit;
5716
5717                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5718                         SCTP_INP_WLOCK(inp);
5719                         if (sinit->sinit_num_ostreams)
5720                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5721
5722                         if (sinit->sinit_max_instreams)
5723                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5724
5725                         if (sinit->sinit_max_attempts)
5726                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5727
5728                         if (sinit->sinit_max_init_timeo)
5729                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5730                         SCTP_INP_WUNLOCK(inp);
5731                         break;
5732                 }
5733         case SCTP_PRIMARY_ADDR:
5734                 {
5735                         struct sctp_setprim *spa;
5736                         struct sctp_nets *net;
5737                         struct sockaddr *addr;
5738 #if defined(INET) && defined(INET6)
5739                         struct sockaddr_in sin_store;
5740 #endif
5741
5742                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5743                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5744
5745 #if defined(INET) && defined(INET6)
5746                         if (spa->ssp_addr.ss_family == AF_INET6) {
5747                                 struct sockaddr_in6 *sin6;
5748
5749                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5750                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5751                                         in6_sin6_2_sin(&sin_store, sin6);
5752                                         addr = (struct sockaddr *)&sin_store;
5753                                 } else {
5754                                         addr = (struct sockaddr *)&spa->ssp_addr;
5755                                 }
5756                         } else {
5757                                 addr = (struct sockaddr *)&spa->ssp_addr;
5758                         }
5759 #else
5760                         addr = (struct sockaddr *)&spa->ssp_addr;
5761 #endif
5762                         if (stcb != NULL) {
5763                                 net = sctp_findnet(stcb, addr);
5764                         } else {
5765                                 /*
5766                                  * We increment here since
5767                                  * sctp_findassociation_ep_addr() wil do a
5768                                  * decrement if it finds the stcb as long as
5769                                  * the locked tcb (last argument) is NOT a
5770                                  * TCB.. aka NULL.
5771                                  */
5772                                 net = NULL;
5773                                 SCTP_INP_INCR_REF(inp);
5774                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5775                                     &net, NULL, NULL);
5776                                 if (stcb == NULL) {
5777                                         SCTP_INP_DECR_REF(inp);
5778                                 }
5779                         }
5780
5781                         if ((stcb != NULL) && (net != NULL)) {
5782                                 if (net != stcb->asoc.primary_destination) {
5783                                         if ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) {
5784                                                 /* Ok we need to set it */
5785                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5786                                                         if ((stcb->asoc.alternate) &&
5787                                                             ((net->dest_state & SCTP_ADDR_PF) == 0) &&
5788                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5789                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5790                                                                 stcb->asoc.alternate = NULL;
5791                                                         }
5792                                                 } else {
5793                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5794                                                         error = EINVAL;
5795                                                 }
5796                                         } else {
5797                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5798                                                 error = EINVAL;
5799                                         }
5800                                 }
5801                         } else {
5802                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5803                                 error = EINVAL;
5804                         }
5805                         if (stcb != NULL) {
5806                                 SCTP_TCB_UNLOCK(stcb);
5807                         }
5808                         break;
5809                 }
5810         case SCTP_SET_DYNAMIC_PRIMARY:
5811                 {
5812                         union sctp_sockstore *ss;
5813
5814                         error = priv_check(curthread,
5815                             PRIV_NETINET_RESERVEDPORT);
5816                         if (error)
5817                                 break;
5818
5819                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5820                         /* SUPER USER CHECK? */
5821                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5822                         break;
5823                 }
5824         case SCTP_SET_PEER_PRIMARY_ADDR:
5825                 {
5826                         struct sctp_setpeerprim *sspp;
5827                         struct sockaddr *addr;
5828 #if defined(INET) && defined(INET6)
5829                         struct sockaddr_in sin_store;
5830 #endif
5831
5832                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5833                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5834                         if (stcb != NULL) {
5835                                 struct sctp_ifa *ifa;
5836
5837 #if defined(INET) && defined(INET6)
5838                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5839                                         struct sockaddr_in6 *sin6;
5840
5841                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5842                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5843                                                 in6_sin6_2_sin(&sin_store, sin6);
5844                                                 addr = (struct sockaddr *)&sin_store;
5845                                         } else {
5846                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5847                                         }
5848                                 } else {
5849                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5850                                 }
5851 #else
5852                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5853 #endif
5854                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5855                                 if (ifa == NULL) {
5856                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5857                                         error = EINVAL;
5858                                         goto out_of_it;
5859                                 }
5860                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5861                                         /*
5862                                          * Must validate the ifa found is in
5863                                          * our ep
5864                                          */
5865                                         struct sctp_laddr *laddr;
5866                                         int found = 0;
5867
5868                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5869                                                 if (laddr->ifa == NULL) {
5870                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5871                                                             __func__);
5872                                                         continue;
5873                                                 }
5874                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5875                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5876                                                         continue;
5877                                                 }
5878                                                 if (laddr->ifa == ifa) {
5879                                                         found = 1;
5880                                                         break;
5881                                                 }
5882                                         }
5883                                         if (!found) {
5884                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5885                                                 error = EINVAL;
5886                                                 goto out_of_it;
5887                                         }
5888                                 } else {
5889                                         switch (addr->sa_family) {
5890 #ifdef INET
5891                                         case AF_INET:
5892                                                 {
5893                                                         struct sockaddr_in *sin;
5894
5895                                                         sin = (struct sockaddr_in *)addr;
5896                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5897                                                             &sin->sin_addr) != 0) {
5898                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5899                                                                 error = EINVAL;
5900                                                                 goto out_of_it;
5901                                                         }
5902                                                         break;
5903                                                 }
5904 #endif
5905 #ifdef INET6
5906                                         case AF_INET6:
5907                                                 {
5908                                                         struct sockaddr_in6 *sin6;
5909
5910                                                         sin6 = (struct sockaddr_in6 *)addr;
5911                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5912                                                             &sin6->sin6_addr) != 0) {
5913                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5914                                                                 error = EINVAL;
5915                                                                 goto out_of_it;
5916                                                         }
5917                                                         break;
5918                                                 }
5919 #endif
5920                                         default:
5921                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5922                                                 error = EINVAL;
5923                                                 goto out_of_it;
5924                                         }
5925                                 }
5926                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5927                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5928                                         error = EINVAL;
5929                                 }
5930                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5931                 out_of_it:
5932                                 SCTP_TCB_UNLOCK(stcb);
5933                         } else {
5934                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5935                                 error = EINVAL;
5936                         }
5937                         break;
5938                 }
5939         case SCTP_BINDX_ADD_ADDR:
5940                 {
5941                         struct sockaddr *sa;
5942                         struct thread *td;
5943
5944                         td = (struct thread *)p;
5945                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5946 #ifdef INET
5947                         if (sa->sa_family == AF_INET) {
5948                                 if (optsize < sizeof(struct sockaddr_in)) {
5949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5950                                         error = EINVAL;
5951                                         break;
5952                                 }
5953                                 if (td != NULL &&
5954                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
5955                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5956                                         break;
5957                                 }
5958                         } else
5959 #endif
5960 #ifdef INET6
5961                         if (sa->sa_family == AF_INET6) {
5962                                 if (optsize < sizeof(struct sockaddr_in6)) {
5963                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5964                                         error = EINVAL;
5965                                         break;
5966                                 }
5967                                 if (td != NULL &&
5968                                     (error = prison_local_ip6(td->td_ucred,
5969                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
5970                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5971                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5972                                         break;
5973                                 }
5974                         } else
5975 #endif
5976                         {
5977                                 error = EAFNOSUPPORT;
5978                                 break;
5979                         }
5980                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
5981                         break;
5982                 }
5983         case SCTP_BINDX_REM_ADDR:
5984                 {
5985                         struct sockaddr *sa;
5986                         struct thread *td;
5987
5988                         td = (struct thread *)p;
5989
5990                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5991 #ifdef INET
5992                         if (sa->sa_family == AF_INET) {
5993                                 if (optsize < sizeof(struct sockaddr_in)) {
5994                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5995                                         error = EINVAL;
5996                                         break;
5997                                 }
5998                                 if (td != NULL &&
5999                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6000                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6001                                         break;
6002                                 }
6003                         } else
6004 #endif
6005 #ifdef INET6
6006                         if (sa->sa_family == AF_INET6) {
6007                                 if (optsize < sizeof(struct sockaddr_in6)) {
6008                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6009                                         error = EINVAL;
6010                                         break;
6011                                 }
6012                                 if (td != NULL &&
6013                                     (error = prison_local_ip6(td->td_ucred,
6014                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6015                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6016                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6017                                         break;
6018                                 }
6019                         } else
6020 #endif
6021                         {
6022                                 error = EAFNOSUPPORT;
6023                                 break;
6024                         }
6025                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6026                         break;
6027                 }
6028         case SCTP_EVENT:
6029                 {
6030                         struct sctp_event *event;
6031                         uint32_t event_type;
6032
6033                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6034                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6035                         switch (event->se_type) {
6036                         case SCTP_ASSOC_CHANGE:
6037                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6038                                 break;
6039                         case SCTP_PEER_ADDR_CHANGE:
6040                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6041                                 break;
6042                         case SCTP_REMOTE_ERROR:
6043                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6044                                 break;
6045                         case SCTP_SEND_FAILED:
6046                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6047                                 break;
6048                         case SCTP_SHUTDOWN_EVENT:
6049                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6050                                 break;
6051                         case SCTP_ADAPTATION_INDICATION:
6052                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6053                                 break;
6054                         case SCTP_PARTIAL_DELIVERY_EVENT:
6055                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6056                                 break;
6057                         case SCTP_AUTHENTICATION_EVENT:
6058                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6059                                 break;
6060                         case SCTP_STREAM_RESET_EVENT:
6061                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6062                                 break;
6063                         case SCTP_SENDER_DRY_EVENT:
6064                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6065                                 break;
6066                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6067                                 event_type = 0;
6068                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6069                                 error = ENOTSUP;
6070                                 break;
6071                         case SCTP_ASSOC_RESET_EVENT:
6072                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6073                                 break;
6074                         case SCTP_STREAM_CHANGE_EVENT:
6075                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6076                                 break;
6077                         case SCTP_SEND_FAILED_EVENT:
6078                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6079                                 break;
6080                         default:
6081                                 event_type = 0;
6082                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6083                                 error = EINVAL;
6084                                 break;
6085                         }
6086                         if (event_type > 0) {
6087                                 if (stcb) {
6088                                         if (event->se_on) {
6089                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6090                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6091                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6092                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6093                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6094                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6095                                                         }
6096                                                 }
6097                                         } else {
6098                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6099                                         }
6100                                         SCTP_TCB_UNLOCK(stcb);
6101                                 } else {
6102                                         /*
6103                                          * We don't want to send up a storm
6104                                          * of events, so return an error for
6105                                          * sender dry events
6106                                          */
6107                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6108                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6109                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6110                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6111                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6112                                                 error = ENOTSUP;
6113                                                 break;
6114                                         }
6115                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6116                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6117                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6118                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6119                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6120                                                 SCTP_INP_WLOCK(inp);
6121                                                 if (event->se_on) {
6122                                                         sctp_feature_on(inp, event_type);
6123                                                 } else {
6124                                                         sctp_feature_off(inp, event_type);
6125                                                 }
6126                                                 SCTP_INP_WUNLOCK(inp);
6127                                         }
6128                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6129                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6130                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6131                                                 SCTP_INP_RLOCK(inp);
6132                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6133                                                         SCTP_TCB_LOCK(stcb);
6134                                                         if (event->se_on) {
6135                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6136                                                         } else {
6137                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6138                                                         }
6139                                                         SCTP_TCB_UNLOCK(stcb);
6140                                                 }
6141                                                 SCTP_INP_RUNLOCK(inp);
6142                                         }
6143                                 }
6144                         } else {
6145                                 if (stcb) {
6146                                         SCTP_TCB_UNLOCK(stcb);
6147                                 }
6148                         }
6149                         break;
6150                 }
6151         case SCTP_RECVRCVINFO:
6152                 {
6153                         int *onoff;
6154
6155                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6156                         SCTP_INP_WLOCK(inp);
6157                         if (*onoff != 0) {
6158                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6159                         } else {
6160                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6161                         }
6162                         SCTP_INP_WUNLOCK(inp);
6163                         break;
6164                 }
6165         case SCTP_RECVNXTINFO:
6166                 {
6167                         int *onoff;
6168
6169                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6170                         SCTP_INP_WLOCK(inp);
6171                         if (*onoff != 0) {
6172                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6173                         } else {
6174                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6175                         }
6176                         SCTP_INP_WUNLOCK(inp);
6177                         break;
6178                 }
6179         case SCTP_DEFAULT_SNDINFO:
6180                 {
6181                         struct sctp_sndinfo *info;
6182                         uint16_t policy;
6183
6184                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6185                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6186
6187                         if (stcb) {
6188                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6189                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6190                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6191                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6192                                         stcb->asoc.def_send.sinfo_flags |= policy;
6193                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6194                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6195                                 } else {
6196                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6197                                         error = EINVAL;
6198                                 }
6199                                 SCTP_TCB_UNLOCK(stcb);
6200                         } else {
6201                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6202                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6203                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6204                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6205                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6206                                         SCTP_INP_WLOCK(inp);
6207                                         inp->def_send.sinfo_stream = info->snd_sid;
6208                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6209                                         inp->def_send.sinfo_flags = info->snd_flags;
6210                                         inp->def_send.sinfo_flags |= policy;
6211                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6212                                         inp->def_send.sinfo_context = info->snd_context;
6213                                         SCTP_INP_WUNLOCK(inp);
6214                                 }
6215                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6216                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6217                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6218                                         SCTP_INP_RLOCK(inp);
6219                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6220                                                 SCTP_TCB_LOCK(stcb);
6221                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6222                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6223                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6224                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6225                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6226                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6227                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6228                                                 }
6229                                                 SCTP_TCB_UNLOCK(stcb);
6230                                         }
6231                                         SCTP_INP_RUNLOCK(inp);
6232                                 }
6233                         }
6234                         break;
6235                 }
6236         case SCTP_DEFAULT_PRINFO:
6237                 {
6238                         struct sctp_default_prinfo *info;
6239
6240                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6241                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6242
6243                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6244                                 if (stcb) {
6245                                         SCTP_TCB_UNLOCK(stcb);
6246                                 }
6247                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6248                                 error = EINVAL;
6249                                 break;
6250                         }
6251                         if (stcb) {
6252                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6253                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6254                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6255                                 SCTP_TCB_UNLOCK(stcb);
6256                         } else {
6257                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6258                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6259                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6260                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6261                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6262                                         SCTP_INP_WLOCK(inp);
6263                                         inp->def_send.sinfo_flags &= 0xfff0;
6264                                         inp->def_send.sinfo_flags |= info->pr_policy;
6265                                         inp->def_send.sinfo_timetolive = info->pr_value;
6266                                         SCTP_INP_WUNLOCK(inp);
6267                                 }
6268                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6269                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6270                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6271                                         SCTP_INP_RLOCK(inp);
6272                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6273                                                 SCTP_TCB_LOCK(stcb);
6274                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6275                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6276                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6277                                                 SCTP_TCB_UNLOCK(stcb);
6278                                         }
6279                                         SCTP_INP_RUNLOCK(inp);
6280                                 }
6281                         }
6282                         break;
6283                 }
6284         case SCTP_PEER_ADDR_THLDS:
6285                 /* Applies to the specific association */
6286                 {
6287                         struct sctp_paddrthlds *thlds;
6288                         struct sctp_nets *net;
6289                         struct sockaddr *addr;
6290 #if defined(INET) && defined(INET6)
6291                         struct sockaddr_in sin_store;
6292 #endif
6293
6294                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6295                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6296
6297 #if defined(INET) && defined(INET6)
6298                         if (thlds->spt_address.ss_family == AF_INET6) {
6299                                 struct sockaddr_in6 *sin6;
6300
6301                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6302                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6303                                         in6_sin6_2_sin(&sin_store, sin6);
6304                                         addr = (struct sockaddr *)&sin_store;
6305                                 } else {
6306                                         addr = (struct sockaddr *)&thlds->spt_address;
6307                                 }
6308                         } else {
6309                                 addr = (struct sockaddr *)&thlds->spt_address;
6310                         }
6311 #else
6312                         addr = (struct sockaddr *)&thlds->spt_address;
6313 #endif
6314                         if (stcb != NULL) {
6315                                 net = sctp_findnet(stcb, addr);
6316                         } else {
6317                                 /*
6318                                  * We increment here since
6319                                  * sctp_findassociation_ep_addr() wil do a
6320                                  * decrement if it finds the stcb as long as
6321                                  * the locked tcb (last argument) is NOT a
6322                                  * TCB.. aka NULL.
6323                                  */
6324                                 net = NULL;
6325                                 SCTP_INP_INCR_REF(inp);
6326                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6327                                     &net, NULL, NULL);
6328                                 if (stcb == NULL) {
6329                                         SCTP_INP_DECR_REF(inp);
6330                                 }
6331                         }
6332                         if ((stcb != NULL) && (net == NULL)) {
6333 #ifdef INET
6334                                 if (addr->sa_family == AF_INET) {
6335                                         struct sockaddr_in *sin;
6336
6337                                         sin = (struct sockaddr_in *)addr;
6338                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6339                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6340                                                 SCTP_TCB_UNLOCK(stcb);
6341                                                 error = EINVAL;
6342                                                 break;
6343                                         }
6344                                 } else
6345 #endif
6346 #ifdef INET6
6347                                 if (addr->sa_family == AF_INET6) {
6348                                         struct sockaddr_in6 *sin6;
6349
6350                                         sin6 = (struct sockaddr_in6 *)addr;
6351                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6352                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6353                                                 SCTP_TCB_UNLOCK(stcb);
6354                                                 error = EINVAL;
6355                                                 break;
6356                                         }
6357                                 } else
6358 #endif
6359                                 {
6360                                         error = EAFNOSUPPORT;
6361                                         SCTP_TCB_UNLOCK(stcb);
6362                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6363                                         break;
6364                                 }
6365                         }
6366                         if (thlds->spt_pathcpthld != 0xffff) {
6367                                 if (stcb != NULL) {
6368                                         SCTP_TCB_UNLOCK(stcb);
6369                                 }
6370                                 error = EINVAL;
6371                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6372                                 break;
6373                         }
6374                         if (stcb != NULL) {
6375                                 if (net != NULL) {
6376                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6377                                         net->pf_threshold = thlds->spt_pathpfthld;
6378                                         if (net->dest_state & SCTP_ADDR_PF) {
6379                                                 if ((net->error_count > net->failure_threshold) ||
6380                                                     (net->error_count <= net->pf_threshold)) {
6381                                                         net->dest_state &= ~SCTP_ADDR_PF;
6382                                                 }
6383                                         } else {
6384                                                 if ((net->error_count > net->pf_threshold) &&
6385                                                     (net->error_count <= net->failure_threshold)) {
6386                                                         net->dest_state |= SCTP_ADDR_PF;
6387                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6388                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6389                                                             stcb->sctp_ep, stcb, net,
6390                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6391                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6392                                                 }
6393                                         }
6394                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6395                                                 if (net->error_count > net->failure_threshold) {
6396                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6397                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6398                                                 }
6399                                         } else {
6400                                                 if (net->error_count <= net->failure_threshold) {
6401                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6402                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6403                                                 }
6404                                         }
6405                                 } else {
6406                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6407                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6408                                                 net->pf_threshold = thlds->spt_pathpfthld;
6409                                                 if (net->dest_state & SCTP_ADDR_PF) {
6410                                                         if ((net->error_count > net->failure_threshold) ||
6411                                                             (net->error_count <= net->pf_threshold)) {
6412                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6413                                                         }
6414                                                 } else {
6415                                                         if ((net->error_count > net->pf_threshold) &&
6416                                                             (net->error_count <= net->failure_threshold)) {
6417                                                                 net->dest_state |= SCTP_ADDR_PF;
6418                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6419                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6420                                                                     stcb->sctp_ep, stcb, net,
6421                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6422                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6423                                                         }
6424                                                 }
6425                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6426                                                         if (net->error_count > net->failure_threshold) {
6427                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6428                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6429                                                         }
6430                                                 } else {
6431                                                         if (net->error_count <= net->failure_threshold) {
6432                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6433                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6434                                                         }
6435                                                 }
6436                                         }
6437                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6438                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6439                                 }
6440                                 SCTP_TCB_UNLOCK(stcb);
6441                         } else {
6442                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6443                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6444                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6445                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6446                                         SCTP_INP_WLOCK(inp);
6447                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6448                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6449                                         SCTP_INP_WUNLOCK(inp);
6450                                 } else {
6451                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6452                                         error = EINVAL;
6453                                 }
6454                         }
6455                         break;
6456                 }
6457         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6458                 {
6459                         struct sctp_udpencaps *encaps;
6460                         struct sctp_nets *net;
6461                         struct sockaddr *addr;
6462 #if defined(INET) && defined(INET6)
6463                         struct sockaddr_in sin_store;
6464 #endif
6465
6466                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6467                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6468
6469 #if defined(INET) && defined(INET6)
6470                         if (encaps->sue_address.ss_family == AF_INET6) {
6471                                 struct sockaddr_in6 *sin6;
6472
6473                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6474                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6475                                         in6_sin6_2_sin(&sin_store, sin6);
6476                                         addr = (struct sockaddr *)&sin_store;
6477                                 } else {
6478                                         addr = (struct sockaddr *)&encaps->sue_address;
6479                                 }
6480                         } else {
6481                                 addr = (struct sockaddr *)&encaps->sue_address;
6482                         }
6483 #else
6484                         addr = (struct sockaddr *)&encaps->sue_address;
6485 #endif
6486                         if (stcb != NULL) {
6487                                 net = sctp_findnet(stcb, addr);
6488                         } else {
6489                                 /*
6490                                  * We increment here since
6491                                  * sctp_findassociation_ep_addr() wil do a
6492                                  * decrement if it finds the stcb as long as
6493                                  * the locked tcb (last argument) is NOT a
6494                                  * TCB.. aka NULL.
6495                                  */
6496                                 net = NULL;
6497                                 SCTP_INP_INCR_REF(inp);
6498                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6499                                 if (stcb == NULL) {
6500                                         SCTP_INP_DECR_REF(inp);
6501                                 }
6502                         }
6503                         if ((stcb != NULL) && (net == NULL)) {
6504 #ifdef INET
6505                                 if (addr->sa_family == AF_INET) {
6506                                         struct sockaddr_in *sin;
6507
6508                                         sin = (struct sockaddr_in *)addr;
6509                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6510                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6511                                                 SCTP_TCB_UNLOCK(stcb);
6512                                                 error = EINVAL;
6513                                                 break;
6514                                         }
6515                                 } else
6516 #endif
6517 #ifdef INET6
6518                                 if (addr->sa_family == AF_INET6) {
6519                                         struct sockaddr_in6 *sin6;
6520
6521                                         sin6 = (struct sockaddr_in6 *)addr;
6522                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6523                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6524                                                 SCTP_TCB_UNLOCK(stcb);
6525                                                 error = EINVAL;
6526                                                 break;
6527                                         }
6528                                 } else
6529 #endif
6530                                 {
6531                                         error = EAFNOSUPPORT;
6532                                         SCTP_TCB_UNLOCK(stcb);
6533                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6534                                         break;
6535                                 }
6536                         }
6537
6538                         if (stcb != NULL) {
6539                                 if (net != NULL) {
6540                                         net->port = encaps->sue_port;
6541                                 } else {
6542                                         stcb->asoc.port = encaps->sue_port;
6543                                 }
6544                                 SCTP_TCB_UNLOCK(stcb);
6545                         } else {
6546                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6547                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6548                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6549                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6550                                         SCTP_INP_WLOCK(inp);
6551                                         inp->sctp_ep.port = encaps->sue_port;
6552                                         SCTP_INP_WUNLOCK(inp);
6553                                 } else {
6554                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6555                                         error = EINVAL;
6556                                 }
6557                         }
6558                         break;
6559                 }
6560         case SCTP_ECN_SUPPORTED:
6561                 {
6562                         struct sctp_assoc_value *av;
6563
6564                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6565                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6566
6567                         if (stcb) {
6568                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6569                                 error = EINVAL;
6570                                 SCTP_TCB_UNLOCK(stcb);
6571                         } else {
6572                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6573                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6574                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6575                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6576                                         SCTP_INP_WLOCK(inp);
6577                                         if (av->assoc_value == 0) {
6578                                                 inp->ecn_supported = 0;
6579                                         } else {
6580                                                 inp->ecn_supported = 1;
6581                                         }
6582                                         SCTP_INP_WUNLOCK(inp);
6583                                 } else {
6584                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6585                                         error = EINVAL;
6586                                 }
6587                         }
6588                         break;
6589                 }
6590         case SCTP_PR_SUPPORTED:
6591                 {
6592                         struct sctp_assoc_value *av;
6593
6594                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6595                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6596
6597                         if (stcb) {
6598                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6599                                 error = EINVAL;
6600                                 SCTP_TCB_UNLOCK(stcb);
6601                         } else {
6602                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6603                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6604                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6605                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6606                                         SCTP_INP_WLOCK(inp);
6607                                         if (av->assoc_value == 0) {
6608                                                 inp->prsctp_supported = 0;
6609                                         } else {
6610                                                 inp->prsctp_supported = 1;
6611                                         }
6612                                         SCTP_INP_WUNLOCK(inp);
6613                                 } else {
6614                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6615                                         error = EINVAL;
6616                                 }
6617                         }
6618                         break;
6619                 }
6620         case SCTP_AUTH_SUPPORTED:
6621                 {
6622                         struct sctp_assoc_value *av;
6623
6624                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6625                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6626
6627                         if (stcb) {
6628                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6629                                 error = EINVAL;
6630                                 SCTP_TCB_UNLOCK(stcb);
6631                         } else {
6632                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6633                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6634                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6635                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6636                                         if ((av->assoc_value == 0) &&
6637                                             (inp->asconf_supported == 1)) {
6638                                                 /*
6639                                                  * AUTH is required for
6640                                                  * ASCONF
6641                                                  */
6642                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6643                                                 error = EINVAL;
6644                                         } else {
6645                                                 SCTP_INP_WLOCK(inp);
6646                                                 if (av->assoc_value == 0) {
6647                                                         inp->auth_supported = 0;
6648                                                 } else {
6649                                                         inp->auth_supported = 1;
6650                                                 }
6651                                                 SCTP_INP_WUNLOCK(inp);
6652                                         }
6653                                 } else {
6654                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6655                                         error = EINVAL;
6656                                 }
6657                         }
6658                         break;
6659                 }
6660         case SCTP_ASCONF_SUPPORTED:
6661                 {
6662                         struct sctp_assoc_value *av;
6663
6664                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6665                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6666
6667                         if (stcb) {
6668                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6669                                 error = EINVAL;
6670                                 SCTP_TCB_UNLOCK(stcb);
6671                         } else {
6672                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6673                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6674                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6675                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6676                                         if ((av->assoc_value != 0) &&
6677                                             (inp->auth_supported == 0)) {
6678                                                 /*
6679                                                  * AUTH is required for
6680                                                  * ASCONF
6681                                                  */
6682                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6683                                                 error = EINVAL;
6684                                         } else {
6685                                                 SCTP_INP_WLOCK(inp);
6686                                                 if (av->assoc_value == 0) {
6687                                                         inp->asconf_supported = 0;
6688                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6689                                                             inp->sctp_ep.local_auth_chunks);
6690                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6691                                                             inp->sctp_ep.local_auth_chunks);
6692                                                 } else {
6693                                                         inp->asconf_supported = 1;
6694                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6695                                                             inp->sctp_ep.local_auth_chunks);
6696                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6697                                                             inp->sctp_ep.local_auth_chunks);
6698                                                 }
6699                                                 SCTP_INP_WUNLOCK(inp);
6700                                         }
6701                                 } else {
6702                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6703                                         error = EINVAL;
6704                                 }
6705                         }
6706                         break;
6707                 }
6708         case SCTP_RECONFIG_SUPPORTED:
6709                 {
6710                         struct sctp_assoc_value *av;
6711
6712                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6713                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6714
6715                         if (stcb) {
6716                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6717                                 error = EINVAL;
6718                                 SCTP_TCB_UNLOCK(stcb);
6719                         } else {
6720                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6721                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6722                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6723                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6724                                         SCTP_INP_WLOCK(inp);
6725                                         if (av->assoc_value == 0) {
6726                                                 inp->reconfig_supported = 0;
6727                                         } else {
6728                                                 inp->reconfig_supported = 1;
6729                                         }
6730                                         SCTP_INP_WUNLOCK(inp);
6731                                 } else {
6732                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6733                                         error = EINVAL;
6734                                 }
6735                         }
6736                         break;
6737                 }
6738         case SCTP_NRSACK_SUPPORTED:
6739                 {
6740                         struct sctp_assoc_value *av;
6741
6742                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6743                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6744
6745                         if (stcb) {
6746                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6747                                 error = EINVAL;
6748                                 SCTP_TCB_UNLOCK(stcb);
6749                         } else {
6750                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6751                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6752                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6753                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6754                                         SCTP_INP_WLOCK(inp);
6755                                         if (av->assoc_value == 0) {
6756                                                 inp->nrsack_supported = 0;
6757                                         } else {
6758                                                 inp->nrsack_supported = 1;
6759                                         }
6760                                         SCTP_INP_WUNLOCK(inp);
6761                                 } else {
6762                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6763                                         error = EINVAL;
6764                                 }
6765                         }
6766                         break;
6767                 }
6768         case SCTP_PKTDROP_SUPPORTED:
6769                 {
6770                         struct sctp_assoc_value *av;
6771
6772                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6773                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6774
6775                         if (stcb) {
6776                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6777                                 error = EINVAL;
6778                                 SCTP_TCB_UNLOCK(stcb);
6779                         } else {
6780                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6781                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6782                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6783                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6784                                         SCTP_INP_WLOCK(inp);
6785                                         if (av->assoc_value == 0) {
6786                                                 inp->pktdrop_supported = 0;
6787                                         } else {
6788                                                 inp->pktdrop_supported = 1;
6789                                         }
6790                                         SCTP_INP_WUNLOCK(inp);
6791                                 } else {
6792                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6793                                         error = EINVAL;
6794                                 }
6795                         }
6796                         break;
6797                 }
6798         case SCTP_MAX_CWND:
6799                 {
6800                         struct sctp_assoc_value *av;
6801                         struct sctp_nets *net;
6802
6803                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6804                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6805
6806                         if (stcb) {
6807                                 stcb->asoc.max_cwnd = av->assoc_value;
6808                                 if (stcb->asoc.max_cwnd > 0) {
6809                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6810                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6811                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6812                                                         net->cwnd = stcb->asoc.max_cwnd;
6813                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6814                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6815                                                         }
6816                                                 }
6817                                         }
6818                                 }
6819                                 SCTP_TCB_UNLOCK(stcb);
6820                         } else {
6821                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6822                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6823                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6824                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6825                                         SCTP_INP_WLOCK(inp);
6826                                         inp->max_cwnd = av->assoc_value;
6827                                         SCTP_INP_WUNLOCK(inp);
6828                                 } else {
6829                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6830                                         error = EINVAL;
6831                                 }
6832                         }
6833                         break;
6834                 }
6835         case SCTP_ACCEPT_ZERO_CHECKSUM:
6836                 {
6837                         uint32_t *value;
6838
6839                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
6840                         if ((*value == SCTP_EDMID_NONE) ||
6841                             (*value == SCTP_EDMID_LOWER_LAYER_DTLS)) {
6842                                 SCTP_INP_WLOCK(inp);
6843                                 inp->rcv_edmid = *value;
6844                                 SCTP_INP_WUNLOCK(inp);
6845                         } else {
6846                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6847                                 error = EINVAL;
6848                         }
6849                         break;
6850                 }
6851
6852         default:
6853                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6854                 error = ENOPROTOOPT;
6855                 break;
6856         }                       /* end switch (opt) */
6857         return (error);
6858 }
6859
6860 int
6861 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6862 {
6863         struct epoch_tracker et;
6864         struct sctp_inpcb *inp;
6865         void *optval = NULL;
6866         void *p;
6867         size_t optsize = 0;
6868         int error = 0;
6869
6870         if ((sopt->sopt_level == SOL_SOCKET) &&
6871             (sopt->sopt_name == SO_SETFIB)) {
6872                 inp = (struct sctp_inpcb *)so->so_pcb;
6873                 if (inp == NULL) {
6874                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6875                         return (EINVAL);
6876                 }
6877                 SCTP_INP_WLOCK(inp);
6878                 inp->fibnum = so->so_fibnum;
6879                 SCTP_INP_WUNLOCK(inp);
6880                 return (0);
6881         }
6882         if (sopt->sopt_level != IPPROTO_SCTP) {
6883                 /* wrong proto level... send back up to IP */
6884 #ifdef INET6
6885                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6886                         error = ip6_ctloutput(so, sopt);
6887 #endif                          /* INET6 */
6888 #if defined(INET) && defined(INET6)
6889                 else
6890 #endif
6891 #ifdef INET
6892                         error = ip_ctloutput(so, sopt);
6893 #endif
6894                 return (error);
6895         }
6896         optsize = sopt->sopt_valsize;
6897         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6898                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6899                 return (ENOBUFS);
6900         }
6901         if (optsize) {
6902                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6903                 if (optval == NULL) {
6904                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6905                         return (ENOBUFS);
6906                 }
6907                 error = sooptcopyin(sopt, optval, optsize, optsize);
6908                 if (error) {
6909                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6910                         goto out;
6911                 }
6912         }
6913         p = (void *)sopt->sopt_td;
6914         if (sopt->sopt_dir == SOPT_SET) {
6915                 NET_EPOCH_ENTER(et);
6916                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6917                 NET_EPOCH_EXIT(et);
6918         } else if (sopt->sopt_dir == SOPT_GET) {
6919                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6920         } else {
6921                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6922                 error = EINVAL;
6923         }
6924         if ((error == 0) && (optval != NULL)) {
6925                 error = sooptcopyout(sopt, optval, optsize);
6926                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6927         } else if (optval != NULL) {
6928                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6929         }
6930 out:
6931         return (error);
6932 }
6933
6934 #ifdef INET
6935 static int
6936 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6937 {
6938         struct epoch_tracker et;
6939         int error = 0;
6940         int create_lock_on = 0;
6941         uint32_t vrf_id;
6942         struct sctp_inpcb *inp;
6943         struct sctp_tcb *stcb = NULL;
6944
6945         inp = (struct sctp_inpcb *)so->so_pcb;
6946         if (inp == NULL) {
6947                 /* I made the same as TCP since we are not setup? */
6948                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6949                 return (ECONNRESET);
6950         }
6951         if (addr == NULL) {
6952                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6953                 return EINVAL;
6954         }
6955
6956         switch (addr->sa_family) {
6957 #ifdef INET6
6958         case AF_INET6:
6959                 {
6960                         struct sockaddr_in6 *sin6;
6961
6962                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6963                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6964                                 return (EINVAL);
6965                         }
6966                         sin6 = (struct sockaddr_in6 *)addr;
6967                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
6968                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6969                                 return (error);
6970                         }
6971                         break;
6972                 }
6973 #endif
6974 #ifdef INET
6975         case AF_INET:
6976                 {
6977                         struct sockaddr_in *sin;
6978
6979                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6980                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6981                                 return (EINVAL);
6982                         }
6983                         sin = (struct sockaddr_in *)addr;
6984                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
6985                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6986                                 return (error);
6987                         }
6988                         break;
6989                 }
6990 #endif
6991         default:
6992                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6993                 return (EAFNOSUPPORT);
6994         }
6995         SCTP_INP_INCR_REF(inp);
6996         SCTP_ASOC_CREATE_LOCK(inp);
6997         create_lock_on = 1;
6998         NET_EPOCH_ENTER(et);
6999
7000         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7001             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7002                 /* Should I really unlock ? */
7003                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7004                 error = EFAULT;
7005                 goto out_now;
7006         }
7007 #ifdef INET6
7008         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7009             (addr->sa_family == AF_INET6)) {
7010                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7011                 error = EINVAL;
7012                 goto out_now;
7013         }
7014 #endif
7015         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7016                 /* Bind a ephemeral port */
7017                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7018                 if (error) {
7019                         goto out_now;
7020                 }
7021         }
7022         /* Now do we connect? */
7023         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7024             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7025                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7026                 error = EINVAL;
7027                 goto out_now;
7028         }
7029         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7030             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7031                 /* We are already connected AND the TCP model */
7032                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7033                 error = EADDRINUSE;
7034                 goto out_now;
7035         }
7036         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7037                 SCTP_INP_RLOCK(inp);
7038                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7039                 SCTP_INP_RUNLOCK(inp);
7040         } else {
7041                 /*
7042                  * We increment here since sctp_findassociation_ep_addr()
7043                  * will do a decrement if it finds the stcb as long as the
7044                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7045                  */
7046                 SCTP_INP_INCR_REF(inp);
7047                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7048                 if (stcb == NULL) {
7049                         SCTP_INP_DECR_REF(inp);
7050                 } else {
7051                         SCTP_TCB_UNLOCK(stcb);
7052                 }
7053         }
7054         if (stcb != NULL) {
7055                 /* Already have or am bring up an association */
7056                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7057                 error = EALREADY;
7058                 goto out_now;
7059         }
7060
7061         vrf_id = inp->def_vrf_id;
7062         /* We are GOOD to go */
7063         stcb = sctp_aloc_assoc_connected(inp, addr, &error, 0, 0, vrf_id,
7064             inp->sctp_ep.pre_open_stream_count,
7065             inp->sctp_ep.port, p,
7066             SCTP_INITIALIZE_AUTH_PARAMS);
7067         if (stcb == NULL) {
7068                 /* Gak! no memory */
7069                 goto out_now;
7070         }
7071         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7072         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7073
7074         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7075         SCTP_TCB_UNLOCK(stcb);
7076 out_now:
7077         NET_EPOCH_EXIT(et);
7078         if (create_lock_on) {
7079                 SCTP_ASOC_CREATE_UNLOCK(inp);
7080         }
7081         SCTP_INP_DECR_REF(inp);
7082         return (error);
7083 }
7084 #endif
7085
7086 int
7087 sctp_listen(struct socket *so, int backlog, struct thread *p)
7088 {
7089         /*
7090          * Note this module depends on the protocol processing being called
7091          * AFTER any socket level flags and backlog are applied to the
7092          * socket. The traditional way that the socket flags are applied is
7093          * AFTER protocol processing. We have made a change to the
7094          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7095          * place if the socket API for SCTP is to work properly.
7096          */
7097
7098         int error = 0;
7099         struct sctp_inpcb *inp;
7100
7101         inp = (struct sctp_inpcb *)so->so_pcb;
7102         if (inp == NULL) {
7103                 /* I made the same as TCP since we are not setup? */
7104                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7105                 return (ECONNRESET);
7106         }
7107         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7108                 /* See if we have a listener */
7109                 struct sctp_inpcb *tinp;
7110                 union sctp_sockstore store;
7111
7112                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7113                         /* not bound all */
7114                         struct sctp_laddr *laddr;
7115
7116                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7117                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7118                                 switch (store.sa.sa_family) {
7119 #ifdef INET
7120                                 case AF_INET:
7121                                         store.sin.sin_port = inp->sctp_lport;
7122                                         break;
7123 #endif
7124 #ifdef INET6
7125                                 case AF_INET6:
7126                                         store.sin6.sin6_port = inp->sctp_lport;
7127                                         break;
7128 #endif
7129                                 default:
7130                                         break;
7131                                 }
7132                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7133                                 if (tinp && (tinp != inp) &&
7134                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7135                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7136                                     (SCTP_IS_LISTENING(tinp))) {
7137                                         /*
7138                                          * we have a listener already and
7139                                          * its not this inp.
7140                                          */
7141                                         SCTP_INP_DECR_REF(tinp);
7142                                         return (EADDRINUSE);
7143                                 } else if (tinp) {
7144                                         SCTP_INP_DECR_REF(tinp);
7145                                 }
7146                         }
7147                 } else {
7148                         /* Setup a local addr bound all */
7149                         memset(&store, 0, sizeof(store));
7150 #ifdef INET6
7151                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7152                                 store.sa.sa_family = AF_INET6;
7153                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7154                         }
7155 #endif
7156 #ifdef INET
7157                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7158                                 store.sa.sa_family = AF_INET;
7159                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7160                         }
7161 #endif
7162                         switch (store.sa.sa_family) {
7163 #ifdef INET
7164                         case AF_INET:
7165                                 store.sin.sin_port = inp->sctp_lport;
7166                                 break;
7167 #endif
7168 #ifdef INET6
7169                         case AF_INET6:
7170                                 store.sin6.sin6_port = inp->sctp_lport;
7171                                 break;
7172 #endif
7173                         default:
7174                                 break;
7175                         }
7176                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7177                         if (tinp && (tinp != inp) &&
7178                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7179                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7180                             (SCTP_IS_LISTENING(tinp))) {
7181                                 /*
7182                                  * we have a listener already and its not
7183                                  * this inp.
7184                                  */
7185                                 SCTP_INP_DECR_REF(tinp);
7186                                 return (EADDRINUSE);
7187                         } else if (tinp) {
7188                                 SCTP_INP_DECR_REF(tinp);
7189                         }
7190                 }
7191         }
7192         SCTP_INP_INFO_WLOCK();
7193         SCTP_INP_WLOCK(inp);
7194 #ifdef SCTP_LOCK_LOGGING
7195         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7196                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7197         }
7198 #endif
7199         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7200             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7201                 /*
7202                  * The unlucky case - We are in the tcp pool with this guy.
7203                  * - Someone else is in the main inp slot. - We must move
7204                  * this guy (the listener) to the main slot - We must then
7205                  * move the guy that was listener to the TCP Pool.
7206                  */
7207                 if (sctp_swap_inpcb_for_listen(inp)) {
7208                         error = EADDRINUSE;
7209                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7210                         goto out;
7211                 }
7212         }
7213         SOCK_LOCK(so);
7214         error = solisten_proto_check(so);
7215         if (error) {
7216                 SOCK_UNLOCK(so);
7217                 goto out;
7218         }
7219         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7220             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7221                 SOCK_UNLOCK(so);
7222                 solisten_proto_abort(so);
7223                 error = EADDRINUSE;
7224                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7225                 goto out;
7226         }
7227         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7228             ((inp->sctp_flags & SCTP_PCB_FLAGS_WAS_CONNECTED) ||
7229             (inp->sctp_flags & SCTP_PCB_FLAGS_WAS_ABORTED))) {
7230                 SOCK_UNLOCK(so);
7231                 solisten_proto_abort(so);
7232                 error = EINVAL;
7233                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7234                 goto out;
7235         }
7236         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7237                 if ((error = sctp_inpcb_bind_locked(inp, NULL, NULL, p))) {
7238                         SOCK_UNLOCK(so);
7239                         solisten_proto_abort(so);
7240                         /* bind error, probably perm */
7241                         goto out;
7242                 }
7243         }
7244         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7245                 solisten_proto(so, backlog);
7246                 SOCK_UNLOCK(so);
7247                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7248         } else {
7249                 solisten_proto_abort(so);
7250                 SOCK_UNLOCK(so);
7251                 if (backlog > 0) {
7252                         inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7253                 } else {
7254                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7255                 }
7256         }
7257 out:
7258         SCTP_INP_WUNLOCK(inp);
7259         SCTP_INP_INFO_WUNLOCK();
7260         return (error);
7261 }
7262
7263 static int sctp_defered_wakeup_cnt = 0;
7264
7265 int
7266 sctp_accept(struct socket *so, struct sockaddr *sa)
7267 {
7268         struct sctp_tcb *stcb;
7269         struct sctp_inpcb *inp;
7270         union sctp_sockstore store;
7271 #ifdef INET6
7272         int error;
7273 #endif
7274         inp = (struct sctp_inpcb *)so->so_pcb;
7275
7276         if (inp == NULL) {
7277                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7278                 return (ECONNRESET);
7279         }
7280         SCTP_INP_WLOCK(inp);
7281         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7282                 SCTP_INP_WUNLOCK(inp);
7283                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7284                 return (EOPNOTSUPP);
7285         }
7286         if (so->so_state & SS_ISDISCONNECTED) {
7287                 SCTP_INP_WUNLOCK(inp);
7288                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7289                 return (ECONNABORTED);
7290         }
7291         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7292         if (stcb == NULL) {
7293                 SCTP_INP_WUNLOCK(inp);
7294                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7295                 return (ECONNRESET);
7296         }
7297         SCTP_TCB_LOCK(stcb);
7298         store = stcb->asoc.primary_destination->ro._l_addr;
7299         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7300         /* Wake any delayed sleep action */
7301         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7302                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7303                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7304                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7305                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7306                         if (sowriteable(inp->sctp_socket)) {
7307                                 sowwakeup_locked(inp->sctp_socket);
7308                         } else {
7309                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7310                         }
7311                 }
7312                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7313                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7314                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7315                         if (soreadable(inp->sctp_socket)) {
7316                                 sctp_defered_wakeup_cnt++;
7317                                 sorwakeup_locked(inp->sctp_socket);
7318                         } else {
7319                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7320                         }
7321                 }
7322         }
7323         SCTP_INP_WUNLOCK(inp);
7324         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7325                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7326                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7327         } else {
7328                 SCTP_TCB_UNLOCK(stcb);
7329         }
7330         switch (store.sa.sa_family) {
7331 #ifdef INET
7332         case AF_INET:
7333                 *(struct sockaddr_in *)sa = (struct sockaddr_in ){
7334                         .sin_family = AF_INET,
7335                         .sin_len = sizeof(struct sockaddr_in),
7336                         .sin_port = store.sin.sin_port,
7337                         .sin_addr = store.sin.sin_addr,
7338                 };
7339                 break;
7340 #endif
7341 #ifdef INET6
7342         case AF_INET6:
7343                 *(struct sockaddr_in6 *)sa = (struct sockaddr_in6 ){
7344                         .sin6_family = AF_INET6,
7345                         .sin6_len = sizeof(struct sockaddr_in6),
7346                         .sin6_port = store.sin6.sin6_port,
7347                         .sin6_addr = store.sin6.sin6_addr,
7348                 };
7349                 if ((error = sa6_recoverscope((struct sockaddr_in6 *)sa)) != 0)
7350                         return (error);
7351                 break;
7352 #endif
7353         default:
7354                 /* TSNH */
7355                 break;
7356         }
7357         return (0);
7358 }
7359
7360 #ifdef INET
7361 int
7362 sctp_ingetaddr(struct socket *so, struct sockaddr *sa)
7363 {
7364         struct sockaddr_in *sin = (struct sockaddr_in *)sa;
7365         uint32_t vrf_id;
7366         struct sctp_inpcb *inp;
7367         struct sctp_ifa *sctp_ifa;
7368
7369         *sin = (struct sockaddr_in ){
7370                 .sin_len = sizeof(struct sockaddr_in),
7371                 .sin_family = AF_INET,
7372         };
7373
7374         inp = (struct sctp_inpcb *)so->so_pcb;
7375         if (!inp) {
7376                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7377                 return (ECONNRESET);
7378         }
7379         SCTP_INP_RLOCK(inp);
7380         sin->sin_port = inp->sctp_lport;
7381         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7382                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7383                         struct sctp_tcb *stcb;
7384                         struct sockaddr_in *sin_a;
7385                         struct sctp_nets *net;
7386                         int fnd;
7387
7388                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7389                         if (stcb == NULL) {
7390                                 goto notConn;
7391                         }
7392                         fnd = 0;
7393                         sin_a = NULL;
7394                         SCTP_TCB_LOCK(stcb);
7395                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7396                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7397                                 if (sin_a == NULL)
7398                                         /* this will make coverity happy */
7399                                         continue;
7400
7401                                 if (sin_a->sin_family == AF_INET) {
7402                                         fnd = 1;
7403                                         break;
7404                                 }
7405                         }
7406                         if ((!fnd) || (sin_a == NULL)) {
7407                                 /* punt */
7408                                 SCTP_TCB_UNLOCK(stcb);
7409                                 goto notConn;
7410                         }
7411
7412                         vrf_id = inp->def_vrf_id;
7413                         sctp_ifa = sctp_source_address_selection(inp,
7414                             stcb,
7415                             (sctp_route_t *)&net->ro,
7416                             net, 0, vrf_id);
7417                         if (sctp_ifa) {
7418                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7419                                 sctp_free_ifa(sctp_ifa);
7420                         }
7421                         SCTP_TCB_UNLOCK(stcb);
7422                 } else {
7423                         /* For the bound all case you get back 0 */
7424         notConn:
7425                         sin->sin_addr.s_addr = 0;
7426                 }
7427
7428         } else {
7429                 /* Take the first IPv4 address in the list */
7430                 struct sctp_laddr *laddr;
7431                 int fnd = 0;
7432
7433                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7434                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7435                                 struct sockaddr_in *sin_a;
7436
7437                                 sin_a = &laddr->ifa->address.sin;
7438                                 sin->sin_addr = sin_a->sin_addr;
7439                                 fnd = 1;
7440                                 break;
7441                         }
7442                 }
7443                 if (!fnd) {
7444                         SCTP_INP_RUNLOCK(inp);
7445                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7446                         return (ENOENT);
7447                 }
7448         }
7449         SCTP_INP_RUNLOCK(inp);
7450
7451         return (0);
7452 }
7453
7454 int
7455 sctp_peeraddr(struct socket *so, struct sockaddr *sa)
7456 {
7457         struct sockaddr_in *sin = (struct sockaddr_in *)sa;
7458         int fnd;
7459         struct sockaddr_in *sin_a;
7460         struct sctp_inpcb *inp;
7461         struct sctp_tcb *stcb;
7462         struct sctp_nets *net;
7463
7464         *sin = (struct sockaddr_in ){
7465                 .sin_len = sizeof(struct sockaddr_in),
7466                 .sin_family = AF_INET,
7467         };
7468
7469         inp = (struct sctp_inpcb *)so->so_pcb;
7470         if ((inp == NULL) ||
7471             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7472                 /* UDP type and listeners will drop out here */
7473                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7474                 return (ENOTCONN);
7475         }
7476         SCTP_INP_RLOCK(inp);
7477         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7478         if (stcb) {
7479                 SCTP_TCB_LOCK(stcb);
7480         }
7481         SCTP_INP_RUNLOCK(inp);
7482         if (stcb == NULL) {
7483                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7484                 return (ECONNRESET);
7485         }
7486         fnd = 0;
7487         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7488                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7489                 if (sin_a->sin_family == AF_INET) {
7490                         fnd = 1;
7491                         sin->sin_port = stcb->rport;
7492                         sin->sin_addr = sin_a->sin_addr;
7493                         break;
7494                 }
7495         }
7496         SCTP_TCB_UNLOCK(stcb);
7497         if (!fnd) {
7498                 /* No IPv4 address */
7499                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7500                 return (ENOENT);
7501         }
7502
7503         return (0);
7504 }
7505
7506 #define SCTP_PROTOSW                                            \
7507         .pr_protocol =  IPPROTO_SCTP,                           \
7508         .pr_ctloutput = sctp_ctloutput,                         \
7509         .pr_abort =     sctp_abort,                             \
7510         .pr_accept =    sctp_accept,                            \
7511         .pr_attach =    sctp_attach,                            \
7512         .pr_bind =      sctp_bind,                              \
7513         .pr_connect =   sctp_connect,                           \
7514         .pr_control =   in_control,                             \
7515         .pr_close =     sctp_close,                             \
7516         .pr_detach =    sctp_close,                             \
7517         .pr_sopoll =    sopoll_generic,                         \
7518         .pr_disconnect = sctp_disconnect,                       \
7519         .pr_listen =    sctp_listen,                            \
7520         .pr_peeraddr =  sctp_peeraddr,                          \
7521         .pr_send =      sctp_sendm,                             \
7522         .pr_shutdown =  sctp_shutdown,                          \
7523         .pr_sockaddr =  sctp_ingetaddr,                         \
7524         .pr_sosend =    sctp_sosend,                            \
7525         .pr_soreceive = sctp_soreceive                          \
7526
7527 struct protosw sctp_seqpacket_protosw = {
7528         .pr_type = SOCK_SEQPACKET,
7529         .pr_flags = PR_WANTRCVD,
7530         SCTP_PROTOSW
7531 };
7532
7533 struct protosw sctp_stream_protosw = {
7534         .pr_type = SOCK_STREAM,
7535         .pr_flags = PR_CONNREQUIRED | PR_WANTRCVD,
7536         SCTP_PROTOSW
7537 };
7538 #endif