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 <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include <netinet/sctp_os.h>
  39 #include <sys/proc.h>
  40 #include <netinet/sctp_pcb.h>
  41 #include <netinet/sctp_header.h>
  42 #include <netinet/sctp_var.h>
  43 #ifdef INET6
  44 #include <netinet6/sctp6_var.h>
  45 #endif
  46 #include <netinet/sctp_sysctl.h>
  47 #include <netinet/sctp_output.h>
  48 #include <netinet/sctp_uio.h>
  49 #include <netinet/sctp_asconf.h>
  50 #include <netinet/sctputil.h>
  51 #include <netinet/sctp_indata.h>
  52 #include <netinet/sctp_timer.h>
  53 #include <netinet/sctp_auth.h>
  54 #include <netinet/sctp_bsd_addr.h>
  55 #include <netinet/udp.h>
  56 #include <sys/eventhandler.h>
  57
  58 extern const struct sctp_cc_functions sctp_cc_functions[];
  59 extern const struct sctp_ss_functions sctp_ss_functions[];
  60
  61 static void
  62 sctp_init(void *arg SCTP_UNUSED)
  63 {
  64         u_long sb_max_adj;
  65
  66         /* Initialize and modify the sysctled variables */
  67         sctp_init_sysctls();
  68         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  69                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  70         /*
  71          * Allow a user to take no more than 1/2 the number of clusters or
  72          * the SB_MAX, whichever is smaller, for the send window.
  73          */
  74         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  75         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  76             (((uint32_t)nmbclusters / 2) * MCLBYTES));
  77         /*
  78          * Now for the recv window, should we take the same amount? or
  79          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  80          * now I will just copy.
  81          */
  82         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  83         SCTP_BASE_VAR(first_time) = 0;
  84         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  85         sctp_pcb_init();
  86 #if defined(SCTP_PACKET_LOGGING)
  87         SCTP_BASE_VAR(packet_log_writers) = 0;
  88         SCTP_BASE_VAR(packet_log_end) = 0;
  89         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  90 #endif
  91         SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
  92             sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
  93 }
  94
  95 VNET_SYSINIT(sctp_init, SI_SUB_PROTO_DOMAIN, SI_ORDER_THIRD, sctp_init, NULL);
  96
  97 #ifdef VIMAGE
  98 static void
  99 sctp_finish(void *unused __unused)
 100 {
 101         EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
 102         sctp_pcb_finish();
 103 }
 104
 105 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 106 #endif
 107
 108 void
 109 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint32_t mtu, bool resend)
 110 {
 111         struct sctp_association *asoc;
 112         struct sctp_tmit_chunk *chk;
 113         uint32_t overhead;
 114
 115         asoc = &stcb->asoc;
 116         KASSERT(mtu < asoc->smallest_mtu,
 117             ("Currently only reducing association MTU %u supported (MTU %u)",
 118             asoc->smallest_mtu, mtu));
 119         asoc->smallest_mtu = mtu;
 120         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 121                 overhead = SCTP_MIN_OVERHEAD;
 122         } else {
 123                 overhead = SCTP_MIN_V4_OVERHEAD;
 124         }
 125         if (asoc->idata_supported) {
 126                 if (sctp_auth_is_required_chunk(SCTP_IDATA, asoc->peer_auth_chunks)) {
 127                         overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
 128                 }
 129         } else {
 130                 if (sctp_auth_is_required_chunk(SCTP_DATA, asoc->peer_auth_chunks)) {
 131                         overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
 132                 }
 133         }
 134         KASSERT(overhead % 4 == 0,
 135             ("overhead (%u) not a multiple of 4", overhead));
 136         TAILQ_FOREACH(chk, &asoc->send_queue, sctp_next) {
 137                 if (((uint32_t)chk->send_size + overhead) > mtu) {
 138                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 139                 }
 140         }
 141         TAILQ_FOREACH(chk, &asoc->sent_queue, sctp_next) {
 142                 if (((uint32_t)chk->send_size + overhead) > mtu) {
 143                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 144                         if (resend && chk->sent < SCTP_DATAGRAM_RESEND) {
 145                                 /*
 146                                  * If requested, mark the chunk for
 147                                  * immediate resend, since we sent it being
 148                                  * too big.
 149                                  */
 150                                 sctp_flight_size_decrease(chk);
 151                                 sctp_total_flight_decrease(stcb, chk);
 152                                 chk->sent = SCTP_DATAGRAM_RESEND;
 153                                 sctp_ucount_incr(asoc->sent_queue_retran_cnt);
 154                                 chk->rec.data.doing_fast_retransmit = 0;
 155                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 156                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 157                                             chk->whoTo->flight_size,
 158                                             chk->book_size,
 159                                             (uint32_t)(uintptr_t)chk->whoTo,
 160                                             chk->rec.data.tsn);
 161                                 }
 162                                 /* Clear any time, so NO RTT is being done. */
 163                                 if (chk->do_rtt == 1) {
 164                                         chk->do_rtt = 0;
 165                                         chk->whoTo->rto_needed = 1;
 166                                 }
 167                         }
 168                 }
 169         }
 170 }
 171
 172 #ifdef INET
 173 void
 174 sctp_notify(struct sctp_inpcb *inp,
 175     struct sctp_tcb *stcb,
 176     struct sctp_nets *net,
 177     uint8_t icmp_type,
 178     uint8_t icmp_code,
 179     uint16_t ip_len,
 180     uint32_t next_mtu)
 181 {
 182         int timer_stopped;
 183
 184         if (icmp_type != ICMP_UNREACH) {
 185                 /* We only care about unreachable */
 186                 SCTP_TCB_UNLOCK(stcb);
 187                 return;
 188         }
 189         if ((icmp_code == ICMP_UNREACH_NET) ||
 190             (icmp_code == ICMP_UNREACH_HOST) ||
 191             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 192             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 193             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 194             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 195             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 196             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 197                 /* Mark the net unreachable. */
 198                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 199                         /* OK, that destination is NOT reachable. */
 200                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 201                         net->dest_state &= ~SCTP_ADDR_PF;
 202                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 203                             stcb, 0,
 204                             (void *)net, SCTP_SO_NOT_LOCKED);
 205                 }
 206                 SCTP_TCB_UNLOCK(stcb);
 207         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 208             (icmp_code == ICMP_UNREACH_PORT)) {
 209                 /* Treat it like an ABORT. */
 210                 sctp_abort_notification(stcb, true, false, 0, NULL, SCTP_SO_NOT_LOCKED);
 211                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 212                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 213                 /* no need to unlock here, since the TCB is gone */
 214         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 215                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 216                         SCTP_TCB_UNLOCK(stcb);
 217                         return;
 218                 }
 219                 /* Find the next (smaller) MTU */
 220                 if (next_mtu == 0) {
 221                         /*
 222                          * Old type router that does not tell us what the
 223                          * next MTU is. Rats we will have to guess (in a
 224                          * educated fashion of course).
 225                          */
 226                         next_mtu = sctp_get_prev_mtu(ip_len);
 227                 }
 228                 /* Stop the PMTU timer. */
 229                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 230                         timer_stopped = 1;
 231                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 232                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 233                 } else {
 234                         timer_stopped = 0;
 235                 }
 236                 /* Update the path MTU. */
 237                 if (net->port) {
 238                         next_mtu -= sizeof(struct udphdr);
 239                 }
 240                 if (net->mtu > next_mtu) {
 241                         net->mtu = next_mtu;
 242                         if (net->port) {
 243                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 244                         } else {
 245                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 246                         }
 247                 }
 248                 /* Update the association MTU */
 249                 if (stcb->asoc.smallest_mtu > next_mtu) {
 250                         sctp_pathmtu_adjustment(stcb, next_mtu, true);
 251                 }
 252                 /* Finally, start the PMTU timer if it was running before. */
 253                 if (timer_stopped) {
 254                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 255                 }
 256                 SCTP_TCB_UNLOCK(stcb);
 257         } else {
 258                 SCTP_TCB_UNLOCK(stcb);
 259         }
 260 }
 261
 262 void
 263 sctp_ctlinput(struct icmp *icmp)
 264 {
 265         struct ip *inner_ip, *outer_ip;
 266         struct sctphdr *sh;
 267         struct sctp_inpcb *inp;
 268         struct sctp_tcb *stcb;
 269         struct sctp_nets *net;
 270         struct sctp_init_chunk *ch;
 271         struct sockaddr_in src, dst;
 272
 273         if (icmp_errmap(icmp) == 0)
 274                 return;
 275
 276         outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 277         inner_ip = &icmp->icmp_ip;
 278         sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 279         memset(&src, 0, sizeof(struct sockaddr_in));
 280         src.sin_family = AF_INET;
 281         src.sin_len = sizeof(struct sockaddr_in);
 282         src.sin_port = sh->src_port;
 283         src.sin_addr = inner_ip->ip_src;
 284         memset(&dst, 0, sizeof(struct sockaddr_in));
 285         dst.sin_family = AF_INET;
 286         dst.sin_len = sizeof(struct sockaddr_in);
 287         dst.sin_port = sh->dest_port;
 288         dst.sin_addr = inner_ip->ip_dst;
 289         /*
 290          * 'dst' holds the dest of the packet that failed to be sent. 'src'
 291          * holds our local endpoint address. Thus we reverse the dst and the
 292          * src in the lookup.
 293          */
 294         inp = NULL;
 295         net = NULL;
 296         stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 297             (struct sockaddr *)&src,
 298             &inp, &net, 1,
 299             SCTP_DEFAULT_VRFID);
 300         if ((stcb != NULL) &&
 301             (net != NULL) &&
 302             (inp != NULL)) {
 303                 /* Check the verification tag */
 304                 if (ntohl(sh->v_tag) != 0) {
 305                         /*
 306                          * This must be the verification tag used for
 307                          * sending out packets. We don't consider packets
 308                          * reflecting the verification tag.
 309                          */
 310                         if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 311                                 SCTP_TCB_UNLOCK(stcb);
 312                                 return;
 313                         }
 314                 } else {
 315                         if (ntohs(outer_ip->ip_len) >=
 316                             sizeof(struct ip) +
 317                             8 + (inner_ip->ip_hl << 2) + 20) {
 318                                 /*
 319                                  * In this case we can check if we got an
 320                                  * INIT chunk and if the initiate tag
 321                                  * matches.
 322                                  */
 323                                 ch = (struct sctp_init_chunk *)(sh + 1);
 324                                 if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 325                                     (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 326                                         SCTP_TCB_UNLOCK(stcb);
 327                                         return;
 328                                 }
 329                         } else {
 330                                 SCTP_TCB_UNLOCK(stcb);
 331                                 return;
 332                         }
 333                 }
 334                 sctp_notify(inp, stcb, net,
 335                     icmp->icmp_type,
 336                     icmp->icmp_code,
 337                     ntohs(inner_ip->ip_len),
 338                     (uint32_t)ntohs(icmp->icmp_nextmtu));
 339         } else {
 340                 if ((stcb == NULL) && (inp != NULL)) {
 341                         /* reduce ref-count */
 342                         SCTP_INP_WLOCK(inp);
 343                         SCTP_INP_DECR_REF(inp);
 344                         SCTP_INP_WUNLOCK(inp);
 345                 }
 346                 if (stcb) {
 347                         SCTP_TCB_UNLOCK(stcb);
 348                 }
 349         }
 350 }
 351 #endif
 352
 353 static int
 354 sctp_getcred(SYSCTL_HANDLER_ARGS)
 355 {
 356         struct xucred xuc;
 357         struct sockaddr_in addrs[2];
 358         struct sctp_inpcb *inp;
 359         struct sctp_nets *net;
 360         struct sctp_tcb *stcb;
 361         int error;
 362         uint32_t vrf_id;
 363
 364         /* FIX, for non-bsd is this right? */
 365         vrf_id = SCTP_DEFAULT_VRFID;
 366
 367         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 368
 369         if (error)
 370                 return (error);
 371
 372         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 373         if (error)
 374                 return (error);
 375
 376         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 377             sintosa(&addrs[0]),
 378             &inp, &net, 1, vrf_id);
 379         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 380                 if ((inp != NULL) && (stcb == NULL)) {
 381                         /* reduce ref-count */
 382                         SCTP_INP_WLOCK(inp);
 383                         SCTP_INP_DECR_REF(inp);
 384                         goto cred_can_cont;
 385                 }
 386
 387                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 388                 error = ENOENT;
 389                 goto out;
 390         }
 391         SCTP_TCB_UNLOCK(stcb);
 392         /*
 393          * We use the write lock here, only since in the error leg we need
 394          * it. If we used RLOCK, then we would have to
 395          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 396          * Better to use higher wlock.
 397          */
 398         SCTP_INP_WLOCK(inp);
 399 cred_can_cont:
 400         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 401         if (error) {
 402                 SCTP_INP_WUNLOCK(inp);
 403                 goto out;
 404         }
 405         cru2x(inp->sctp_socket->so_cred, &xuc);
 406         SCTP_INP_WUNLOCK(inp);
 407         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 408 out:
 409         return (error);
 410 }
 411
 412 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred,
 413     CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 414     0, 0, sctp_getcred, "S,ucred",
 415     "Get the ucred of a SCTP connection");
 416
 417 #ifdef INET
 418 static void
 419 sctp_abort(struct socket *so)
 420 {
 421         struct epoch_tracker et;
 422         struct sctp_inpcb *inp;
 423
 424         inp = (struct sctp_inpcb *)so->so_pcb;
 425         if (inp == NULL) {
 426                 return;
 427         }
 428
 429         SCTP_INP_WLOCK(inp);
 430         NET_EPOCH_ENTER(et);
 431 #ifdef SCTP_LOG_CLOSING
 432         sctp_log_closing(inp, NULL, 17);
 433 #endif
 434         if (((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0)) {
 435                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 436 #ifdef SCTP_LOG_CLOSING
 437                 sctp_log_closing(inp, NULL, 16);
 438 #endif
 439                 SCTP_INP_WUNLOCK(inp);
 440                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 441                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 442                 SOCK_LOCK(so);
 443                 KASSERT(!SOLISTENING(so),
 444                     ("sctp_abort: called on listening socket %p", so));
 445                 SCTP_SB_CLEAR(so->so_snd);
 446                 SCTP_SB_CLEAR(so->so_rcv);
 447                 /* Now null out the reference, we are completely detached. */
 448                 so->so_pcb = NULL;
 449                 SOCK_UNLOCK(so);
 450         } else {
 451                 SCTP_INP_WUNLOCK(inp);
 452         }
 453         NET_EPOCH_EXIT(et);
 454 }
 455
 456 static int
 457 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 458 {
 459         struct sctp_inpcb *inp;
 460         struct inpcb *ip_inp;
 461         int error;
 462         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 463
 464         inp = (struct sctp_inpcb *)so->so_pcb;
 465         if (inp != NULL) {
 466                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 467                 return (EINVAL);
 468         }
 469         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 470                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 471                 if (error) {
 472                         return (error);
 473                 }
 474         }
 475         error = sctp_inpcb_alloc(so, vrf_id);
 476         if (error) {
 477                 return (error);
 478         }
 479         inp = (struct sctp_inpcb *)so->so_pcb;
 480         SCTP_INP_WLOCK(inp);
 481         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 482         ip_inp = &inp->ip_inp.inp;
 483         ip_inp->inp_vflag |= INP_IPV4;
 484         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 485         SCTP_INP_WUNLOCK(inp);
 486         return (0);
 487 }
 488
 489 static int
 490 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 491 {
 492         struct sctp_inpcb *inp;
 493
 494         inp = (struct sctp_inpcb *)so->so_pcb;
 495         if (inp == NULL) {
 496                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 497                 return (EINVAL);
 498         }
 499         if (addr != NULL) {
 500                 if ((addr->sa_family != AF_INET) ||
 501                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 502                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 503                         return (EINVAL);
 504                 }
 505         }
 506         return (sctp_inpcb_bind(so, addr, NULL, p));
 507 }
 508
 509 #endif
 510 void
 511 sctp_close(struct socket *so)
 512 {
 513         struct epoch_tracker et;
 514         struct sctp_inpcb *inp;
 515
 516         inp = (struct sctp_inpcb *)so->so_pcb;
 517         if (inp == NULL)
 518                 return;
 519
 520         /*
 521          * Inform all the lower layer assoc that we are done.
 522          */
 523         SCTP_INP_WLOCK(inp);
 524         NET_EPOCH_ENTER(et);
 525 #ifdef SCTP_LOG_CLOSING
 526         sctp_log_closing(inp, NULL, 17);
 527 #endif
 528         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 529                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 530                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 531                     (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
 532 #ifdef SCTP_LOG_CLOSING
 533                         sctp_log_closing(inp, NULL, 13);
 534 #endif
 535                         SCTP_INP_WUNLOCK(inp);
 536                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 537                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 538                 } else {
 539 #ifdef SCTP_LOG_CLOSING
 540                         sctp_log_closing(inp, NULL, 14);
 541 #endif
 542                         SCTP_INP_WUNLOCK(inp);
 543                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 544                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 545                 }
 546                 /*
 547                  * The socket is now detached, no matter what the state of
 548                  * the SCTP association.
 549                  */
 550                 SOCK_LOCK(so);
 551                 if (!SOLISTENING(so)) {
 552                         SCTP_SB_CLEAR(so->so_snd);
 553                         SCTP_SB_CLEAR(so->so_rcv);
 554                 }
 555                 /* Now null out the reference, we are completely detached. */
 556                 so->so_pcb = NULL;
 557                 SOCK_UNLOCK(so);
 558         } else {
 559                 SCTP_INP_WUNLOCK(inp);
 560         }
 561         NET_EPOCH_EXIT(et);
 562 }
 563
 564 int
 565 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 566     struct mbuf *control, struct thread *p);
 567
 568 int
 569 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 570     struct mbuf *control, struct thread *p)
 571 {
 572         struct sctp_inpcb *inp;
 573         int error;
 574
 575         inp = (struct sctp_inpcb *)so->so_pcb;
 576         if (inp == NULL) {
 577                 if (control) {
 578                         sctp_m_freem(control);
 579                         control = NULL;
 580                 }
 581                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 582                 sctp_m_freem(m);
 583                 return (EINVAL);
 584         }
 585         /* Got to have an to address if we are NOT a connected socket */
 586         if ((addr == NULL) &&
 587             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 588             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 589                 goto connected_type;
 590         }
 591
 592         error = 0;
 593         if (addr == NULL) {
 594                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 595                 error = EDESTADDRREQ;
 596         } else if (addr->sa_family != AF_INET) {
 597                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 598                 error = EAFNOSUPPORT;
 599         } else if (addr->sa_len != sizeof(struct sockaddr_in)) {
 600                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 601                 error = EINVAL;
 602         }
 603         if (error != 0) {
 604                 sctp_m_freem(m);
 605                 if (control) {
 606                         sctp_m_freem(control);
 607                         control = NULL;
 608                 }
 609                 return (error);
 610         }
 611 connected_type:
 612         /* now what about control */
 613         if (control) {
 614                 if (inp->control) {
 615                         sctp_m_freem(inp->control);
 616                         inp->control = NULL;
 617                 }
 618                 inp->control = control;
 619         }
 620         /* Place the data */
 621         if (inp->pkt) {
 622                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 623                 inp->pkt_last = m;
 624         } else {
 625                 inp->pkt_last = inp->pkt = m;
 626         }
 627         if (
 628         /* FreeBSD uses a flag passed */
 629             ((flags & PRUS_MORETOCOME) == 0)
 630             ) {
 631                 /*
 632                  * note with the current version this code will only be used
 633                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 634                  * re-defining sosend to use the sctp_sosend. One can
 635                  * optionally switch back to this code (by changing back the
 636                  * definitions) but this is not advisable. This code is used
 637                  * by FreeBSD when sending a file with sendfile() though.
 638                  */
 639                 struct epoch_tracker et;
 640                 int ret;
 641
 642                 NET_EPOCH_ENTER(et);
 643                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 644                 NET_EPOCH_EXIT(et);
 645                 inp->pkt = NULL;
 646                 inp->control = NULL;
 647                 return (ret);
 648         } else {
 649                 return (0);
 650         }
 651 }
 652
 653 int
 654 sctp_disconnect(struct socket *so)
 655 {
 656         struct sctp_inpcb *inp;
 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         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 665             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 666                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 667                         /* No connection */
 668                         SCTP_INP_RUNLOCK(inp);
 669                         return (0);
 670                 } else {
 671                         struct epoch_tracker et;
 672                         struct sctp_association *asoc;
 673                         struct sctp_tcb *stcb;
 674
 675                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 676                         if (stcb == NULL) {
 677                                 SCTP_INP_RUNLOCK(inp);
 678                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 679                                 return (EINVAL);
 680                         }
 681                         SCTP_TCB_LOCK(stcb);
 682                         asoc = &stcb->asoc;
 683                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 684                                 /* We are about to be freed, out of here */
 685                                 SCTP_TCB_UNLOCK(stcb);
 686                                 SCTP_INP_RUNLOCK(inp);
 687                                 return (0);
 688                         }
 689                         NET_EPOCH_ENTER(et);
 690                         if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 691                             (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
 692                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 693                                         /* Left with Data unread */
 694                                         struct mbuf *op_err;
 695
 696                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 697                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 698                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 699                                 }
 700                                 SCTP_INP_RUNLOCK(inp);
 701                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 702                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 703                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 704                                 }
 705                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 706                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 707                                 /* No unlock tcb assoc is gone */
 708                                 NET_EPOCH_EXIT(et);
 709                                 return (0);
 710                         }
 711                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 712                             TAILQ_EMPTY(&asoc->sent_queue) &&
 713                             (asoc->stream_queue_cnt == 0)) {
 714                                 /* there is nothing queued to send, so done */
 715                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 716                                         goto abort_anyway;
 717                                 }
 718                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 719                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 720                                         /* only send SHUTDOWN 1st time thru */
 721                                         struct sctp_nets *netp;
 722
 723                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 724                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 725                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 726                                         }
 727                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 728                                         sctp_stop_timers_for_shutdown(stcb);
 729                                         if (stcb->asoc.alternate) {
 730                                                 netp = stcb->asoc.alternate;
 731                                         } else {
 732                                                 netp = stcb->asoc.primary_destination;
 733                                         }
 734                                         sctp_send_shutdown(stcb, netp);
 735                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 736                                             stcb->sctp_ep, stcb, netp);
 737                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 738                                             stcb->sctp_ep, stcb, NULL);
 739                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 740                                 }
 741                         } else {
 742                                 /*
 743                                  * we still got (or just got) data to send,
 744                                  * so set SHUTDOWN_PENDING
 745                                  */
 746                                 /*
 747                                  * XXX sockets draft says that SCTP_EOF
 748                                  * should be sent with no data. currently,
 749                                  * we will allow user data to be sent first
 750                                  * and move to SHUTDOWN-PENDING
 751                                  */
 752                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 753                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 754                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 755                                 }
 756                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 757                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 758                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 759                                         struct mbuf *op_err;
 760
 761                         abort_anyway:
 762                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 763                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 764                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 765                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 766                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 767                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 768                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 769                                         }
 770                                         SCTP_INP_RUNLOCK(inp);
 771                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 772                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 773                                         NET_EPOCH_EXIT(et);
 774                                         return (0);
 775                                 } else {
 776                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 777                                 }
 778                         }
 779                         soisdisconnecting(so);
 780                         NET_EPOCH_EXIT(et);
 781                         SCTP_TCB_UNLOCK(stcb);
 782                         SCTP_INP_RUNLOCK(inp);
 783                         return (0);
 784                 }
 785                 /* not reached */
 786         } else {
 787                 /* UDP model does not support this */
 788                 SCTP_INP_RUNLOCK(inp);
 789                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 790                 return (EOPNOTSUPP);
 791         }
 792 }
 793
 794 int
 795 sctp_flush(struct socket *so, int how)
 796 {
 797         /*
 798          * We will just clear out the values and let subsequent close clear
 799          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 800          * they will not be able to read the data, the socket will block
 801          * that from happening.
 802          */
 803         struct sctp_inpcb *inp;
 804
 805         inp = (struct sctp_inpcb *)so->so_pcb;
 806         if (inp == NULL) {
 807                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 808                 return (EINVAL);
 809         }
 810         SCTP_INP_RLOCK(inp);
 811         /* For the 1 to many model this does nothing */
 812         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 813                 SCTP_INP_RUNLOCK(inp);
 814                 return (0);
 815         }
 816         SCTP_INP_RUNLOCK(inp);
 817         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 818                 /*
 819                  * First make sure the sb will be happy, we don't use these
 820                  * except maybe the count
 821                  */
 822                 SCTP_INP_WLOCK(inp);
 823                 SCTP_INP_READ_LOCK(inp);
 824                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 825                 SCTP_INP_READ_UNLOCK(inp);
 826                 SCTP_INP_WUNLOCK(inp);
 827                 SOCK_LOCK(so);
 828                 KASSERT(!SOLISTENING(so),
 829                     ("sctp_flush: called on listening socket %p", so));
 830                 SCTP_SB_CLEAR(so->so_rcv);
 831                 SOCK_UNLOCK(so);
 832         }
 833         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 834                 /*
 835                  * First make sure the sb will be happy, we don't use these
 836                  * except maybe the count
 837                  */
 838                 SOCK_LOCK(so);
 839                 KASSERT(!SOLISTENING(so),
 840                     ("sctp_flush: called on listening socket %p", so));
 841                 SCTP_SB_CLEAR(so->so_snd);
 842                 SOCK_UNLOCK(so);
 843         }
 844         return (0);
 845 }
 846
 847 int
 848 sctp_shutdown(struct socket *so)
 849 {
 850         struct sctp_inpcb *inp;
 851
 852         inp = (struct sctp_inpcb *)so->so_pcb;
 853         if (inp == NULL) {
 854                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 855                 return (EINVAL);
 856         }
 857         SCTP_INP_RLOCK(inp);
 858         /* For UDP model this is a invalid call */
 859         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 860             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 861                 /* Restore the flags that the soshutdown took away. */
 862                 SOCKBUF_LOCK(&so->so_rcv);
 863                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 864                 SOCKBUF_UNLOCK(&so->so_rcv);
 865                 /* This proc will wakeup for read and do nothing (I hope) */
 866                 SCTP_INP_RUNLOCK(inp);
 867                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 868                 return (EOPNOTSUPP);
 869         } else {
 870                 /*
 871                  * Ok, if we reach here its the TCP model and it is either a
 872                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 873                  * against it.
 874                  */
 875                 struct epoch_tracker et;
 876                 struct sctp_tcb *stcb;
 877                 struct sctp_association *asoc;
 878                 struct sctp_nets *netp;
 879
 880                 if ((so->so_state &
 881                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 882                         SCTP_INP_RUNLOCK(inp);
 883                         return (ENOTCONN);
 884                 }
 885                 socantsendmore(so);
 886
 887                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 888                 if (stcb == NULL) {
 889                         /*
 890                          * Ok, we hit the case that the shutdown call was
 891                          * made after an abort or something. Nothing to do
 892                          * now.
 893                          */
 894                         SCTP_INP_RUNLOCK(inp);
 895                         return (0);
 896                 }
 897                 SCTP_TCB_LOCK(stcb);
 898                 asoc = &stcb->asoc;
 899                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 900                         SCTP_TCB_UNLOCK(stcb);
 901                         SCTP_INP_RUNLOCK(inp);
 902                         return (0);
 903                 }
 904                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 905                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 906                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 907                         /*
 908                          * If we are not in or before ESTABLISHED, there is
 909                          * no protocol action required.
 910                          */
 911                         SCTP_TCB_UNLOCK(stcb);
 912                         SCTP_INP_RUNLOCK(inp);
 913                         return (0);
 914                 }
 915                 NET_EPOCH_ENTER(et);
 916                 if (stcb->asoc.alternate) {
 917                         netp = stcb->asoc.alternate;
 918                 } else {
 919                         netp = stcb->asoc.primary_destination;
 920                 }
 921                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 922                     TAILQ_EMPTY(&asoc->send_queue) &&
 923                     TAILQ_EMPTY(&asoc->sent_queue) &&
 924                     (asoc->stream_queue_cnt == 0)) {
 925                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 926                                 goto abort_anyway;
 927                         }
 928                         /* there is nothing queued to send, so I'm done... */
 929                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 930                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 931                         sctp_stop_timers_for_shutdown(stcb);
 932                         sctp_send_shutdown(stcb, netp);
 933                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 934                             stcb->sctp_ep, stcb, netp);
 935                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 936                             stcb->sctp_ep, stcb, NULL);
 937                 } else {
 938                         /*
 939                          * We still got (or just got) data to send, so set
 940                          * SHUTDOWN_PENDING.
 941                          */
 942                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 943                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 944                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 945                         }
 946                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 947                             TAILQ_EMPTY(&asoc->sent_queue) &&
 948                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 949                                 struct mbuf *op_err;
 950
 951                 abort_anyway:
 952                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 953                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 954                                 SCTP_INP_RUNLOCK(inp);
 955                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 956                                     op_err, false, SCTP_SO_LOCKED);
 957                                 NET_EPOCH_EXIT(et);
 958                                 return (0);
 959                         }
 960                 }
 961                 /*
 962                  * XXX: Why do this in the case where we have still data
 963                  * queued?
 964                  */
 965                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 966                 SCTP_TCB_UNLOCK(stcb);
 967                 SCTP_INP_RUNLOCK(inp);
 968                 NET_EPOCH_EXIT(et);
 969                 return (0);
 970         }
 971 }
 972
 973 /*
 974  * copies a "user" presentable address and removes embedded scope, etc.
 975  * returns 0 on success, 1 on error
 976  */
 977 static uint32_t
 978 sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
 979 {
 980 #ifdef INET6
 981         struct sockaddr_in6 lsa6;
 982
 983         src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
 984             &lsa6);
 985 #endif
 986         memcpy(dst, src, src->sa_len);
 987         return (0);
 988 }
 989
 990 static size_t
 991 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 992     struct sctp_tcb *stcb,
 993     size_t limit,
 994     struct sockaddr *addr,
 995     uint32_t vrf_id)
 996 {
 997         struct sctp_ifn *sctp_ifn;
 998         struct sctp_ifa *sctp_ifa;
 999         size_t actual;
1000         int loopback_scope;
1001 #if defined(INET)
1002         int ipv4_local_scope, ipv4_addr_legal;
1003 #endif
1004 #if defined(INET6)
1005         int local_scope, site_scope, ipv6_addr_legal;
1006 #endif
1007         struct sctp_vrf *vrf;
1008
1009         SCTP_IPI_ADDR_LOCK_ASSERT();
1010         actual = 0;
1011         if (limit == 0)
1012                 return (actual);
1013
1014         if (stcb) {
1015                 /* Turn on all the appropriate scope */
1016                 loopback_scope = stcb->asoc.scope.loopback_scope;
1017 #if defined(INET)
1018                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1019                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1020 #endif
1021 #if defined(INET6)
1022                 local_scope = stcb->asoc.scope.local_scope;
1023                 site_scope = stcb->asoc.scope.site_scope;
1024                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1025 #endif
1026         } else {
1027                 /* Use generic values for endpoints. */
1028                 loopback_scope = 1;
1029 #if defined(INET)
1030                 ipv4_local_scope = 1;
1031 #endif
1032 #if defined(INET6)
1033                 local_scope = 1;
1034                 site_scope = 1;
1035 #endif
1036                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1037 #if defined(INET6)
1038                         ipv6_addr_legal = 1;
1039 #endif
1040 #if defined(INET)
1041                         if (SCTP_IPV6_V6ONLY(inp)) {
1042                                 ipv4_addr_legal = 0;
1043                         } else {
1044                                 ipv4_addr_legal = 1;
1045                         }
1046 #endif
1047                 } else {
1048 #if defined(INET6)
1049                         ipv6_addr_legal = 0;
1050 #endif
1051 #if defined(INET)
1052                         ipv4_addr_legal = 1;
1053 #endif
1054                 }
1055         }
1056         vrf = sctp_find_vrf(vrf_id);
1057         if (vrf == NULL) {
1058                 return (0);
1059         }
1060         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1061                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1062                         if ((loopback_scope == 0) &&
1063                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1064                                 /* Skip loopback if loopback_scope not set */
1065                                 continue;
1066                         }
1067                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1068                                 if (stcb) {
1069                                         /*
1070                                          * For the BOUND-ALL case, the list
1071                                          * associated with a TCB is Always
1072                                          * considered a reverse list.. i.e.
1073                                          * it lists addresses that are NOT
1074                                          * part of the association. If this
1075                                          * is one of those we must skip it.
1076                                          */
1077                                         if (sctp_is_addr_restricted(stcb,
1078                                             sctp_ifa)) {
1079                                                 continue;
1080                                         }
1081                                 }
1082                                 switch (sctp_ifa->address.sa.sa_family) {
1083 #ifdef INET
1084                                 case AF_INET:
1085                                         if (ipv4_addr_legal) {
1086                                                 struct sockaddr_in *sin;
1087
1088                                                 sin = &sctp_ifa->address.sin;
1089                                                 if (sin->sin_addr.s_addr == 0) {
1090                                                         /*
1091                                                          * we skip
1092                                                          * unspecified
1093                                                          * addresses
1094                                                          */
1095                                                         continue;
1096                                                 }
1097                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1098                                                     &sin->sin_addr) != 0) {
1099                                                         continue;
1100                                                 }
1101                                                 if ((ipv4_local_scope == 0) &&
1102                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1103                                                         continue;
1104                                                 }
1105 #ifdef INET6
1106                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1107                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1108                                                                 return (actual);
1109                                                         }
1110                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
1111                                                         ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1112                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1113                                                         actual += sizeof(struct sockaddr_in6);
1114                                                 } else {
1115 #endif
1116                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1117                                                                 return (actual);
1118                                                         }
1119                                                         memcpy(addr, sin, sizeof(struct sockaddr_in));
1120                                                         ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1121                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
1122                                                         actual += sizeof(struct sockaddr_in);
1123 #ifdef INET6
1124                                                 }
1125 #endif
1126                                         } else {
1127                                                 continue;
1128                                         }
1129                                         break;
1130 #endif
1131 #ifdef INET6
1132                                 case AF_INET6:
1133                                         if (ipv6_addr_legal) {
1134                                                 struct sockaddr_in6 *sin6;
1135
1136                                                 sin6 = &sctp_ifa->address.sin6;
1137                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1138                                                         /*
1139                                                          * we skip
1140                                                          * unspecified
1141                                                          * addresses
1142                                                          */
1143                                                         continue;
1144                                                 }
1145                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1146                                                     &sin6->sin6_addr) != 0) {
1147                                                         continue;
1148                                                 }
1149                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1150                                                         if (local_scope == 0)
1151                                                                 continue;
1152                                                         if (sin6->sin6_scope_id == 0) {
1153                                                                 if (sa6_recoverscope(sin6) != 0)
1154                                                                         /*
1155                                                                          *
1156                                                                          * bad
1157                                                                          * link
1158                                                                          *
1159                                                                          * local
1160                                                                          *
1161                                                                          * address
1162                                                                          */
1163                                                                         continue;
1164                                                         }
1165                                                 }
1166                                                 if ((site_scope == 0) &&
1167                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1168                                                         continue;
1169                                                 }
1170                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1171                                                         return (actual);
1172                                                 }
1173                                                 memcpy(addr, sin6, sizeof(struct sockaddr_in6));
1174                                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1175                                                 addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1176                                                 actual += sizeof(struct sockaddr_in6);
1177                                         } else {
1178                                                 continue;
1179                                         }
1180                                         break;
1181 #endif
1182                                 default:
1183                                         /* TSNH */
1184                                         break;
1185                                 }
1186                         }
1187                 }
1188         } else {
1189                 struct sctp_laddr *laddr;
1190                 size_t sa_len;
1191
1192                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1193                         if (stcb) {
1194                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1195                                         continue;
1196                                 }
1197                         }
1198                         sa_len = laddr->ifa->address.sa.sa_len;
1199                         if (actual + sa_len > limit) {
1200                                 return (actual);
1201                         }
1202                         if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
1203                                 continue;
1204                         switch (laddr->ifa->address.sa.sa_family) {
1205 #ifdef INET
1206                         case AF_INET:
1207                                 ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1208                                 break;
1209 #endif
1210 #ifdef INET6
1211                         case AF_INET6:
1212                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1213                                 break;
1214 #endif
1215                         default:
1216                                 /* TSNH */
1217                                 break;
1218                         }
1219                         addr = (struct sockaddr *)((caddr_t)addr + sa_len);
1220                         actual += sa_len;
1221                 }
1222         }
1223         return (actual);
1224 }
1225
1226 static size_t
1227 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1228     struct sctp_tcb *stcb,
1229     size_t limit,
1230     struct sockaddr *addr)
1231 {
1232         size_t size;
1233
1234         SCTP_IPI_ADDR_RLOCK();
1235         /* fill up addresses for the endpoint's default vrf */
1236         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
1237             inp->def_vrf_id);
1238         SCTP_IPI_ADDR_RUNLOCK();
1239         return (size);
1240 }
1241
1242 static size_t
1243 sctp_max_size_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1244 {
1245         struct sctp_vrf *vrf;
1246         size_t size;
1247
1248         /*
1249          * In both sub-set bound an bound_all cases we return the size of
1250          * the maximum number of addresses that you could get. In reality
1251          * the sub-set bound may have an exclusion list for a given TCB or
1252          * in the bound-all case a TCB may NOT include the loopback or other
1253          * addresses as well.
1254          */
1255         SCTP_IPI_ADDR_LOCK_ASSERT();
1256         vrf = sctp_find_vrf(vrf_id);
1257         if (vrf == NULL) {
1258                 return (0);
1259         }
1260         size = 0;
1261         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1262                 struct sctp_ifn *sctp_ifn;
1263                 struct sctp_ifa *sctp_ifa;
1264
1265                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1266                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1267                                 /* Count them if they are the right type */
1268                                 switch (sctp_ifa->address.sa.sa_family) {
1269 #ifdef INET
1270                                 case AF_INET:
1271 #ifdef INET6
1272                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1273                                                 size += sizeof(struct sockaddr_in6);
1274                                         else
1275                                                 size += sizeof(struct sockaddr_in);
1276 #else
1277                                         size += sizeof(struct sockaddr_in);
1278 #endif
1279                                         break;
1280 #endif
1281 #ifdef INET6
1282                                 case AF_INET6:
1283                                         size += sizeof(struct sockaddr_in6);
1284                                         break;
1285 #endif
1286                                 default:
1287                                         break;
1288                                 }
1289                         }
1290                 }
1291         } else {
1292                 struct sctp_laddr *laddr;
1293
1294                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1295                         switch (laddr->ifa->address.sa.sa_family) {
1296 #ifdef INET
1297                         case AF_INET:
1298 #ifdef INET6
1299                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1300                                         size += sizeof(struct sockaddr_in6);
1301                                 else
1302                                         size += sizeof(struct sockaddr_in);
1303 #else
1304                                 size += sizeof(struct sockaddr_in);
1305 #endif
1306                                 break;
1307 #endif
1308 #ifdef INET6
1309                         case AF_INET6:
1310                                 size += sizeof(struct sockaddr_in6);
1311                                 break;
1312 #endif
1313                         default:
1314                                 break;
1315                         }
1316                 }
1317         }
1318         return (size);
1319 }
1320
1321 static size_t
1322 sctp_max_size_addresses(struct sctp_inpcb *inp)
1323 {
1324         size_t size;
1325
1326         SCTP_IPI_ADDR_RLOCK();
1327         /* Maximum size of all addresses for the endpoint's default VRF */
1328         size = sctp_max_size_addresses_vrf(inp, inp->def_vrf_id);
1329         SCTP_IPI_ADDR_RUNLOCK();
1330         return (size);
1331 }
1332
1333 static int
1334 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1335     size_t optsize, void *p, int delay)
1336 {
1337         int error;
1338         int creat_lock_on = 0;
1339         struct sctp_tcb *stcb = NULL;
1340         struct sockaddr *sa;
1341         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1342         uint32_t vrf_id;
1343         sctp_assoc_t *a_id;
1344
1345         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1346
1347         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1348             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1349                 /* We are already connected AND the TCP model */
1350                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1351                 return (EADDRINUSE);
1352         }
1353
1354         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1355             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1356                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1357                 return (EINVAL);
1358         }
1359
1360         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1361                 SCTP_INP_RLOCK(inp);
1362                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1363                 SCTP_INP_RUNLOCK(inp);
1364         }
1365         if (stcb) {
1366                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1367                 return (EALREADY);
1368         }
1369         SCTP_INP_INCR_REF(inp);
1370         SCTP_ASOC_CREATE_LOCK(inp);
1371         creat_lock_on = 1;
1372         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1373             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1374                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1375                 error = EFAULT;
1376                 goto out_now;
1377         }
1378         totaddrp = (unsigned int *)optval;
1379         totaddr = *totaddrp;
1380         sa = (struct sockaddr *)(totaddrp + 1);
1381         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1382         if (error != 0) {
1383                 /* Already have or am bring up an association */
1384                 SCTP_ASOC_CREATE_UNLOCK(inp);
1385                 creat_lock_on = 0;
1386                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1387                 goto out_now;
1388         }
1389 #ifdef INET6
1390         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1391             (num_v6 > 0)) {
1392                 error = EINVAL;
1393                 goto out_now;
1394         }
1395         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1396             (num_v4 > 0)) {
1397                 if (SCTP_IPV6_V6ONLY(inp)) {
1398                         /*
1399                          * if IPV6_V6ONLY flag, ignore connections destined
1400                          * to a v4 addr or v4-mapped addr
1401                          */
1402                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1403                         error = EINVAL;
1404                         goto out_now;
1405                 }
1406         }
1407 #endif                          /* INET6 */
1408         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
1409                 /* Bind a ephemeral port */
1410                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1411                 if (error) {
1412                         goto out_now;
1413                 }
1414         }
1415
1416         /* FIX ME: do we want to pass in a vrf on the connect call? */
1417         vrf_id = inp->def_vrf_id;
1418
1419         /* We are GOOD to go */
1420         stcb = sctp_aloc_assoc_connected(inp, sa, &error, 0, 0, vrf_id,
1421             inp->sctp_ep.pre_open_stream_count,
1422             inp->sctp_ep.port,
1423             (struct thread *)p,
1424             SCTP_INITIALIZE_AUTH_PARAMS);
1425         if (stcb == NULL) {
1426                 /* Gak! no memory */
1427                 goto out_now;
1428         }
1429         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1430         /* move to second address */
1431         switch (sa->sa_family) {
1432 #ifdef INET
1433         case AF_INET:
1434                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1435                 break;
1436 #endif
1437 #ifdef INET6
1438         case AF_INET6:
1439                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1440                 break;
1441 #endif
1442         default:
1443                 break;
1444         }
1445
1446         error = 0;
1447         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1448         /* Fill in the return id */
1449         if (error) {
1450                 goto out_now;
1451         }
1452         a_id = (sctp_assoc_t *)optval;
1453         *a_id = sctp_get_associd(stcb);
1454
1455         if (delay) {
1456                 /* doing delayed connection */
1457                 stcb->asoc.delayed_connection = 1;
1458                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1459         } else {
1460                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1461                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1462         }
1463         SCTP_TCB_UNLOCK(stcb);
1464 out_now:
1465         if (creat_lock_on) {
1466                 SCTP_ASOC_CREATE_UNLOCK(inp);
1467         }
1468         SCTP_INP_DECR_REF(inp);
1469         return (error);
1470 }
1471
1472 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1473         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1474             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1475                 SCTP_INP_RLOCK(inp); \
1476                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1477                 if (stcb) { \
1478                         SCTP_TCB_LOCK(stcb); \
1479                 } \
1480                 SCTP_INP_RUNLOCK(inp); \
1481         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1482                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1483                 if (stcb == NULL) { \
1484                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1485                         error = ENOENT; \
1486                         break; \
1487                 } \
1488         } else { \
1489                 stcb = NULL; \
1490         } \
1491 }
1492
1493 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1494         if (size < sizeof(type)) { \
1495                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1496                 error = EINVAL; \
1497                 break; \
1498         } else { \
1499                 destp = (type *)srcp; \
1500         } \
1501 }
1502
1503 static int
1504 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1505     void *p)
1506 {
1507         struct sctp_inpcb *inp = NULL;
1508         int error, val = 0;
1509         struct sctp_tcb *stcb = NULL;
1510
1511         if (optval == NULL) {
1512                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1513                 return (EINVAL);
1514         }
1515
1516         inp = (struct sctp_inpcb *)so->so_pcb;
1517         if (inp == NULL) {
1518                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1519                 return EINVAL;
1520         }
1521         error = 0;
1522
1523         switch (optname) {
1524         case SCTP_NODELAY:
1525         case SCTP_AUTOCLOSE:
1526         case SCTP_EXPLICIT_EOR:
1527         case SCTP_AUTO_ASCONF:
1528         case SCTP_DISABLE_FRAGMENTS:
1529         case SCTP_I_WANT_MAPPED_V4_ADDR:
1530         case SCTP_USE_EXT_RCVINFO:
1531                 SCTP_INP_RLOCK(inp);
1532                 switch (optname) {
1533                 case SCTP_DISABLE_FRAGMENTS:
1534                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1535                         break;
1536                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1537                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1538                         break;
1539                 case SCTP_AUTO_ASCONF:
1540                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1541                                 /* only valid for bound all sockets */
1542                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1543                         } else {
1544                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1545                                 error = EINVAL;
1546                                 goto flags_out;
1547                         }
1548                         break;
1549                 case SCTP_EXPLICIT_EOR:
1550                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1551                         break;
1552                 case SCTP_NODELAY:
1553                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1554                         break;
1555                 case SCTP_USE_EXT_RCVINFO:
1556                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1557                         break;
1558                 case SCTP_AUTOCLOSE:
1559                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1560                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1561                         else
1562                                 val = 0;
1563                         break;
1564
1565                 default:
1566                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1567                         error = ENOPROTOOPT;
1568                 }               /* end switch (sopt->sopt_name) */
1569                 if (*optsize < sizeof(val)) {
1570                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1571                         error = EINVAL;
1572                 }
1573 flags_out:
1574                 SCTP_INP_RUNLOCK(inp);
1575                 if (error == 0) {
1576                         /* return the option value */
1577                         *(int *)optval = val;
1578                         *optsize = sizeof(val);
1579                 }
1580                 break;
1581         case SCTP_GET_PACKET_LOG:
1582                 {
1583 #ifdef  SCTP_PACKET_LOGGING
1584                         uint8_t *target;
1585                         int ret;
1586
1587                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1588                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1589                         *optsize = ret;
1590 #else
1591                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1592                         error = EOPNOTSUPP;
1593 #endif
1594                         break;
1595                 }
1596         case SCTP_REUSE_PORT:
1597                 {
1598                         uint32_t *value;
1599
1600                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1601                                 /* Can't do this for a 1-m socket */
1602                                 error = EINVAL;
1603                                 break;
1604                         }
1605                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1606                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1607                         *optsize = sizeof(uint32_t);
1608                         break;
1609                 }
1610         case SCTP_PARTIAL_DELIVERY_POINT:
1611                 {
1612                         uint32_t *value;
1613
1614                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1615                         *value = inp->partial_delivery_point;
1616                         *optsize = sizeof(uint32_t);
1617                         break;
1618                 }
1619         case SCTP_FRAGMENT_INTERLEAVE:
1620                 {
1621                         uint32_t *value;
1622
1623                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1624                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1625                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1626                                         *value = SCTP_FRAG_LEVEL_2;
1627                                 } else {
1628                                         *value = SCTP_FRAG_LEVEL_1;
1629                                 }
1630                         } else {
1631                                 *value = SCTP_FRAG_LEVEL_0;
1632                         }
1633                         *optsize = sizeof(uint32_t);
1634                         break;
1635                 }
1636         case SCTP_INTERLEAVING_SUPPORTED:
1637                 {
1638                         struct sctp_assoc_value *av;
1639
1640                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1641                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1642
1643                         if (stcb) {
1644                                 av->assoc_value = stcb->asoc.idata_supported;
1645                                 SCTP_TCB_UNLOCK(stcb);
1646                         } else {
1647                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1648                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1649                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1650                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1651                                         SCTP_INP_RLOCK(inp);
1652                                         if (inp->idata_supported) {
1653                                                 av->assoc_value = 1;
1654                                         } else {
1655                                                 av->assoc_value = 0;
1656                                         }
1657                                         SCTP_INP_RUNLOCK(inp);
1658                                 } else {
1659                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1660                                         error = EINVAL;
1661                                 }
1662                         }
1663                         if (error == 0) {
1664                                 *optsize = sizeof(struct sctp_assoc_value);
1665                         }
1666                         break;
1667                 }
1668         case SCTP_CMT_ON_OFF:
1669                 {
1670                         struct sctp_assoc_value *av;
1671
1672                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1673                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1674                         if (stcb) {
1675                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1676                                 SCTP_TCB_UNLOCK(stcb);
1677                         } else {
1678                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1679                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1680                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1681                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1682                                         SCTP_INP_RLOCK(inp);
1683                                         av->assoc_value = inp->sctp_cmt_on_off;
1684                                         SCTP_INP_RUNLOCK(inp);
1685                                 } else {
1686                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1687                                         error = EINVAL;
1688                                 }
1689                         }
1690                         if (error == 0) {
1691                                 *optsize = sizeof(struct sctp_assoc_value);
1692                         }
1693                         break;
1694                 }
1695         case SCTP_PLUGGABLE_CC:
1696                 {
1697                         struct sctp_assoc_value *av;
1698
1699                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1700                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1701                         if (stcb) {
1702                                 av->assoc_value = stcb->asoc.congestion_control_module;
1703                                 SCTP_TCB_UNLOCK(stcb);
1704                         } else {
1705                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1706                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1707                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1708                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1709                                         SCTP_INP_RLOCK(inp);
1710                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1711                                         SCTP_INP_RUNLOCK(inp);
1712                                 } else {
1713                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1714                                         error = EINVAL;
1715                                 }
1716                         }
1717                         if (error == 0) {
1718                                 *optsize = sizeof(struct sctp_assoc_value);
1719                         }
1720                         break;
1721                 }
1722         case SCTP_CC_OPTION:
1723                 {
1724                         struct sctp_cc_option *cc_opt;
1725
1726                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1727                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1728                         if (stcb == NULL) {
1729                                 error = EINVAL;
1730                         } else {
1731                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1732                                         error = ENOTSUP;
1733                                 } else {
1734                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1735                                         *optsize = sizeof(struct sctp_cc_option);
1736                                 }
1737                                 SCTP_TCB_UNLOCK(stcb);
1738                         }
1739                         break;
1740                 }
1741         case SCTP_STREAM_SCHEDULER:
1742                 {
1743                         struct sctp_assoc_value *av;
1744
1745                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1746                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1747                         if (stcb) {
1748                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1749                                 SCTP_TCB_UNLOCK(stcb);
1750                         } else {
1751                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1752                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1753                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1754                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1755                                         SCTP_INP_RLOCK(inp);
1756                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1757                                         SCTP_INP_RUNLOCK(inp);
1758                                 } else {
1759                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1760                                         error = EINVAL;
1761                                 }
1762                         }
1763                         if (error == 0) {
1764                                 *optsize = sizeof(struct sctp_assoc_value);
1765                         }
1766                         break;
1767                 }
1768         case SCTP_STREAM_SCHEDULER_VALUE:
1769                 {
1770                         struct sctp_stream_value *av;
1771
1772                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1773                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1774                         if (stcb) {
1775                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1776                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1777                                     &av->stream_value) < 0)) {
1778                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1779                                         error = EINVAL;
1780                                 } else {
1781                                         *optsize = sizeof(struct sctp_stream_value);
1782                                 }
1783                                 SCTP_TCB_UNLOCK(stcb);
1784                         } else {
1785                                 /*
1786                                  * Can't get stream value without
1787                                  * association
1788                                  */
1789                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1790                                 error = EINVAL;
1791                         }
1792                         break;
1793                 }
1794         case SCTP_GET_ADDR_LEN:
1795                 {
1796                         struct sctp_assoc_value *av;
1797
1798                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1799                         error = EINVAL;
1800 #ifdef INET
1801                         if (av->assoc_value == AF_INET) {
1802                                 av->assoc_value = sizeof(struct sockaddr_in);
1803                                 error = 0;
1804                         }
1805 #endif
1806 #ifdef INET6
1807                         if (av->assoc_value == AF_INET6) {
1808                                 av->assoc_value = sizeof(struct sockaddr_in6);
1809                                 error = 0;
1810                         }
1811 #endif
1812                         if (error) {
1813                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1814                         } else {
1815                                 *optsize = sizeof(struct sctp_assoc_value);
1816                         }
1817                         break;
1818                 }
1819         case SCTP_GET_ASSOC_NUMBER:
1820                 {
1821                         uint32_t *value, cnt;
1822
1823                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1824                         SCTP_INP_RLOCK(inp);
1825                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1826                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1827                                 /* Can't do this for a 1-1 socket */
1828                                 error = EINVAL;
1829                                 SCTP_INP_RUNLOCK(inp);
1830                                 break;
1831                         }
1832                         cnt = 0;
1833                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1834                                 cnt++;
1835                         }
1836                         SCTP_INP_RUNLOCK(inp);
1837                         *value = cnt;
1838                         *optsize = sizeof(uint32_t);
1839                         break;
1840                 }
1841         case SCTP_GET_ASSOC_ID_LIST:
1842                 {
1843                         struct sctp_assoc_ids *ids;
1844                         uint32_t at;
1845                         size_t limit;
1846
1847                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1848                         SCTP_INP_RLOCK(inp);
1849                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1850                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1851                                 /* Can't do this for a 1-1 socket */
1852                                 error = EINVAL;
1853                                 SCTP_INP_RUNLOCK(inp);
1854                                 break;
1855                         }
1856                         at = 0;
1857                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1858                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1859                                 if (at < limit) {
1860                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1861                                         if (at == 0) {
1862                                                 error = EINVAL;
1863                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1864                                                 break;
1865                                         }
1866                                 } else {
1867                                         error = EINVAL;
1868                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1869                                         break;
1870                                 }
1871                         }
1872                         SCTP_INP_RUNLOCK(inp);
1873                         if (error == 0) {
1874                                 ids->gaids_number_of_ids = at;
1875                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1876                         }
1877                         break;
1878                 }
1879         case SCTP_CONTEXT:
1880                 {
1881                         struct sctp_assoc_value *av;
1882
1883                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1884                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1885
1886                         if (stcb) {
1887                                 av->assoc_value = stcb->asoc.context;
1888                                 SCTP_TCB_UNLOCK(stcb);
1889                         } else {
1890                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1891                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1892                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1893                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1894                                         SCTP_INP_RLOCK(inp);
1895                                         av->assoc_value = inp->sctp_context;
1896                                         SCTP_INP_RUNLOCK(inp);
1897                                 } else {
1898                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1899                                         error = EINVAL;
1900                                 }
1901                         }
1902                         if (error == 0) {
1903                                 *optsize = sizeof(struct sctp_assoc_value);
1904                         }
1905                         break;
1906                 }
1907         case SCTP_VRF_ID:
1908                 {
1909                         uint32_t *default_vrfid;
1910
1911                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1912                         *default_vrfid = inp->def_vrf_id;
1913                         *optsize = sizeof(uint32_t);
1914                         break;
1915                 }
1916         case SCTP_GET_ASOC_VRF:
1917                 {
1918                         struct sctp_assoc_value *id;
1919
1920                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1921                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1922                         if (stcb == NULL) {
1923                                 error = EINVAL;
1924                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1925                         } else {
1926                                 id->assoc_value = stcb->asoc.vrf_id;
1927                                 SCTP_TCB_UNLOCK(stcb);
1928                                 *optsize = sizeof(struct sctp_assoc_value);
1929                         }
1930                         break;
1931                 }
1932         case SCTP_GET_VRF_IDS:
1933                 {
1934                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1935                         error = EOPNOTSUPP;
1936                         break;
1937                 }
1938         case SCTP_GET_NONCE_VALUES:
1939                 {
1940                         struct sctp_get_nonce_values *gnv;
1941
1942                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1943                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1944
1945                         if (stcb) {
1946                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1947                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1948                                 SCTP_TCB_UNLOCK(stcb);
1949                                 *optsize = sizeof(struct sctp_get_nonce_values);
1950                         } else {
1951                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1952                                 error = ENOTCONN;
1953                         }
1954                         break;
1955                 }
1956         case SCTP_DELAYED_SACK:
1957                 {
1958                         struct sctp_sack_info *sack;
1959
1960                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1961                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1962                         if (stcb) {
1963                                 sack->sack_delay = stcb->asoc.delayed_ack;
1964                                 sack->sack_freq = stcb->asoc.sack_freq;
1965                                 SCTP_TCB_UNLOCK(stcb);
1966                         } else {
1967                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1968                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1969                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1970                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
1971                                         SCTP_INP_RLOCK(inp);
1972                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1973                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1974                                         SCTP_INP_RUNLOCK(inp);
1975                                 } else {
1976                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1977                                         error = EINVAL;
1978                                 }
1979                         }
1980                         if (error == 0) {
1981                                 *optsize = sizeof(struct sctp_sack_info);
1982                         }
1983                         break;
1984                 }
1985         case SCTP_GET_SNDBUF_USE:
1986                 {
1987                         struct sctp_sockstat *ss;
1988
1989                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
1990                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
1991
1992                         if (stcb) {
1993                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
1994                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
1995                                     stcb->asoc.size_on_all_streams);
1996                                 SCTP_TCB_UNLOCK(stcb);
1997                                 *optsize = sizeof(struct sctp_sockstat);
1998                         } else {
1999                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2000                                 error = ENOTCONN;
2001                         }
2002                         break;
2003                 }
2004         case SCTP_MAX_BURST:
2005                 {
2006                         struct sctp_assoc_value *av;
2007
2008                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2009                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2010
2011                         if (stcb) {
2012                                 av->assoc_value = stcb->asoc.max_burst;
2013                                 SCTP_TCB_UNLOCK(stcb);
2014                         } else {
2015                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2016                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2017                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2018                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2019                                         SCTP_INP_RLOCK(inp);
2020                                         av->assoc_value = inp->sctp_ep.max_burst;
2021                                         SCTP_INP_RUNLOCK(inp);
2022                                 } else {
2023                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2024                                         error = EINVAL;
2025                                 }
2026                         }
2027                         if (error == 0) {
2028                                 *optsize = sizeof(struct sctp_assoc_value);
2029                         }
2030                         break;
2031                 }
2032         case SCTP_MAXSEG:
2033                 {
2034                         struct sctp_assoc_value *av;
2035
2036                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2037                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2038
2039                         if (stcb) {
2040                                 av->assoc_value = stcb->asoc.sctp_frag_point;
2041                                 SCTP_TCB_UNLOCK(stcb);
2042                         } else {
2043                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2044                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2045                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2046                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2047                                         SCTP_INP_RLOCK(inp);
2048                                         av->assoc_value = inp->sctp_frag_point;
2049                                         SCTP_INP_RUNLOCK(inp);
2050                                 } else {
2051                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2052                                         error = EINVAL;
2053                                 }
2054                         }
2055                         if (error == 0) {
2056                                 *optsize = sizeof(struct sctp_assoc_value);
2057                         }
2058                         break;
2059                 }
2060         case SCTP_GET_STAT_LOG:
2061                 error = sctp_fill_stat_log(optval, optsize);
2062                 break;
2063         case SCTP_EVENTS:
2064                 {
2065                         struct sctp_event_subscribe *events;
2066
2067                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2068                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2069                         SCTP_INP_RLOCK(inp);
2070                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2071                                 events->sctp_data_io_event = 1;
2072
2073                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2074                                 events->sctp_association_event = 1;
2075
2076                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2077                                 events->sctp_address_event = 1;
2078
2079                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2080                                 events->sctp_send_failure_event = 1;
2081
2082                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2083                                 events->sctp_peer_error_event = 1;
2084
2085                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2086                                 events->sctp_shutdown_event = 1;
2087
2088                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2089                                 events->sctp_partial_delivery_event = 1;
2090
2091                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2092                                 events->sctp_adaptation_layer_event = 1;
2093
2094                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2095                                 events->sctp_authentication_event = 1;
2096
2097                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2098                                 events->sctp_sender_dry_event = 1;
2099
2100                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2101                                 events->sctp_stream_reset_event = 1;
2102                         SCTP_INP_RUNLOCK(inp);
2103                         *optsize = sizeof(struct sctp_event_subscribe);
2104                         break;
2105                 }
2106         case SCTP_ADAPTATION_LAYER:
2107                 {
2108                         uint32_t *value;
2109
2110                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2111
2112                         SCTP_INP_RLOCK(inp);
2113                         *value = inp->sctp_ep.adaptation_layer_indicator;
2114                         SCTP_INP_RUNLOCK(inp);
2115                         *optsize = sizeof(uint32_t);
2116                         break;
2117                 }
2118         case SCTP_SET_INITIAL_DBG_SEQ:
2119                 {
2120                         uint32_t *value;
2121
2122                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2123                         SCTP_INP_RLOCK(inp);
2124                         *value = inp->sctp_ep.initial_sequence_debug;
2125                         SCTP_INP_RUNLOCK(inp);
2126                         *optsize = sizeof(uint32_t);
2127                         break;
2128                 }
2129         case SCTP_GET_LOCAL_ADDR_SIZE:
2130                 {
2131                         uint32_t *value;
2132
2133                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2134                         SCTP_INP_RLOCK(inp);
2135                         *value = (uint32_t)sctp_max_size_addresses(inp);
2136                         SCTP_INP_RUNLOCK(inp);
2137                         *optsize = sizeof(uint32_t);
2138                         break;
2139                 }
2140         case SCTP_GET_REMOTE_ADDR_SIZE:
2141                 {
2142                         uint32_t *value;
2143                         struct sctp_nets *net;
2144                         size_t size;
2145
2146                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2147                         /* FIXME MT: change to sctp_assoc_value? */
2148                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2149
2150                         if (stcb != NULL) {
2151                                 size = 0;
2152                                 /* Count the sizes */
2153                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2154                                         switch (net->ro._l_addr.sa.sa_family) {
2155 #ifdef INET
2156                                         case AF_INET:
2157 #ifdef INET6
2158                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2159                                                         size += sizeof(struct sockaddr_in6);
2160                                                 } else {
2161                                                         size += sizeof(struct sockaddr_in);
2162                                                 }
2163 #else
2164                                                 size += sizeof(struct sockaddr_in);
2165 #endif
2166                                                 break;
2167 #endif
2168 #ifdef INET6
2169                                         case AF_INET6:
2170                                                 size += sizeof(struct sockaddr_in6);
2171                                                 break;
2172 #endif
2173                                         default:
2174                                                 break;
2175                                         }
2176                                 }
2177                                 SCTP_TCB_UNLOCK(stcb);
2178                                 *value = (uint32_t)size;
2179                                 *optsize = sizeof(uint32_t);
2180                         } else {
2181                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2182                                     ((sctp_assoc_t)*value <= SCTP_ALL_ASSOC)) {
2183                                         error = EINVAL;
2184                                 } else {
2185                                         error = ENOENT;
2186                                 }
2187                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2188                         }
2189                         break;
2190                 }
2191         case SCTP_GET_PEER_ADDRESSES:
2192                 /*
2193                  * Get the address information, an array is passed in to
2194                  * fill up we pack it.
2195                  */
2196                 {
2197                         size_t cpsz, left;
2198                         struct sockaddr *addr;
2199                         struct sctp_nets *net;
2200                         struct sctp_getaddresses *saddr;
2201
2202                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2203                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2204
2205                         if (stcb != NULL) {
2206                                 left = *optsize - offsetof(struct sctp_getaddresses, addr);
2207                                 *optsize = offsetof(struct sctp_getaddresses, addr);
2208                                 addr = &saddr->addr[0].sa;
2209
2210                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2211                                         switch (net->ro._l_addr.sa.sa_family) {
2212 #ifdef INET
2213                                         case AF_INET:
2214 #ifdef INET6
2215                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2216                                                         cpsz = sizeof(struct sockaddr_in6);
2217                                                 } else {
2218                                                         cpsz = sizeof(struct sockaddr_in);
2219                                                 }
2220 #else
2221                                                 cpsz = sizeof(struct sockaddr_in);
2222 #endif
2223                                                 break;
2224 #endif
2225 #ifdef INET6
2226                                         case AF_INET6:
2227                                                 cpsz = sizeof(struct sockaddr_in6);
2228                                                 break;
2229 #endif
2230                                         default:
2231                                                 cpsz = 0;
2232                                                 break;
2233                                         }
2234                                         if (cpsz == 0) {
2235                                                 break;
2236                                         }
2237                                         if (left < cpsz) {
2238                                                 /* not enough room. */
2239                                                 break;
2240                                         }
2241 #if defined(INET) && defined(INET6)
2242                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2243                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2244                                                 /* Must map the address */
2245                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2246                                                     (struct sockaddr_in6 *)addr);
2247                                         } else {
2248                                                 memcpy(addr, &net->ro._l_addr, cpsz);
2249                                         }
2250 #else
2251                                         memcpy(addr, &net->ro._l_addr, cpsz);
2252 #endif
2253                                         ((struct sockaddr_in *)addr)->sin_port = stcb->rport;
2254
2255                                         addr = (struct sockaddr *)((caddr_t)addr + cpsz);
2256                                         left -= cpsz;
2257                                         *optsize += cpsz;
2258                                 }
2259                                 SCTP_TCB_UNLOCK(stcb);
2260                         } else {
2261                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2262                                     (saddr->sget_assoc_id <= SCTP_ALL_ASSOC)) {
2263                                         error = EINVAL;
2264                                 } else {
2265                                         error = ENOENT;
2266                                 }
2267                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2268                         }
2269                         break;
2270                 }
2271         case SCTP_GET_LOCAL_ADDRESSES:
2272                 {
2273                         size_t limit, actual;
2274                         struct sctp_getaddresses *saddr;
2275
2276                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2277                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2278
2279                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2280                             ((saddr->sget_assoc_id == SCTP_CURRENT_ASSOC) ||
2281                             (saddr->sget_assoc_id == SCTP_ALL_ASSOC))) {
2282                                 error = EINVAL;
2283                         } else {
2284                                 limit = *optsize - offsetof(struct sctp_getaddresses, addr);
2285                                 actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
2286                                 *optsize = offsetof(struct sctp_getaddresses, addr) + actual;
2287                         }
2288                         if (stcb != NULL) {
2289                                 SCTP_TCB_UNLOCK(stcb);
2290                         }
2291                         break;
2292                 }
2293         case SCTP_PEER_ADDR_PARAMS:
2294                 {
2295                         struct sctp_paddrparams *paddrp;
2296                         struct sctp_nets *net;
2297                         struct sockaddr *addr;
2298 #if defined(INET) && defined(INET6)
2299                         struct sockaddr_in sin_store;
2300 #endif
2301
2302                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2303                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2304
2305 #if defined(INET) && defined(INET6)
2306                         if (paddrp->spp_address.ss_family == AF_INET6) {
2307                                 struct sockaddr_in6 *sin6;
2308
2309                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2310                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2311                                         in6_sin6_2_sin(&sin_store, sin6);
2312                                         addr = (struct sockaddr *)&sin_store;
2313                                 } else {
2314                                         addr = (struct sockaddr *)&paddrp->spp_address;
2315                                 }
2316                         } else {
2317                                 addr = (struct sockaddr *)&paddrp->spp_address;
2318                         }
2319 #else
2320                         addr = (struct sockaddr *)&paddrp->spp_address;
2321 #endif
2322                         if (stcb != NULL) {
2323                                 net = sctp_findnet(stcb, addr);
2324                         } else {
2325                                 /*
2326                                  * We increment here since
2327                                  * sctp_findassociation_ep_addr() wil do a
2328                                  * decrement if it finds the stcb as long as
2329                                  * the locked tcb (last argument) is NOT a
2330                                  * TCB.. aka NULL.
2331                                  */
2332                                 net = NULL;
2333                                 SCTP_INP_INCR_REF(inp);
2334                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2335                                 if (stcb == NULL) {
2336                                         SCTP_INP_DECR_REF(inp);
2337                                 }
2338                         }
2339                         if ((stcb != NULL) && (net == NULL)) {
2340 #ifdef INET
2341                                 if (addr->sa_family == AF_INET) {
2342                                         struct sockaddr_in *sin;
2343
2344                                         sin = (struct sockaddr_in *)addr;
2345                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2346                                                 error = EINVAL;
2347                                                 SCTP_TCB_UNLOCK(stcb);
2348                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2349                                                 break;
2350                                         }
2351                                 } else
2352 #endif
2353 #ifdef INET6
2354                                 if (addr->sa_family == AF_INET6) {
2355                                         struct sockaddr_in6 *sin6;
2356
2357                                         sin6 = (struct sockaddr_in6 *)addr;
2358                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2359                                                 error = EINVAL;
2360                                                 SCTP_TCB_UNLOCK(stcb);
2361                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2362                                                 break;
2363                                         }
2364                                 } else
2365 #endif
2366                                 {
2367                                         error = EAFNOSUPPORT;
2368                                         SCTP_TCB_UNLOCK(stcb);
2369                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2370                                         break;
2371                                 }
2372                         }
2373
2374                         if (stcb != NULL) {
2375                                 /* Applies to the specific association */
2376                                 paddrp->spp_flags = 0;
2377                                 if (net != NULL) {
2378                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2379                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2380                                         paddrp->spp_pathmtu = net->mtu;
2381                                         switch (net->ro._l_addr.sa.sa_family) {
2382 #ifdef INET
2383                                         case AF_INET:
2384                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2385                                                 break;
2386 #endif
2387 #ifdef INET6
2388                                         case AF_INET6:
2389                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2390                                                 break;
2391 #endif
2392                                         default:
2393                                                 break;
2394                                         }
2395                                         /* get flags for HB */
2396                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2397                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2398                                         } else {
2399                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2400                                         }
2401                                         /* get flags for PMTU */
2402                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2403                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2404                                         } else {
2405                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2406                                         }
2407                                         if (net->dscp & 0x01) {
2408                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2409                                                 paddrp->spp_flags |= SPP_DSCP;
2410                                         }
2411 #ifdef INET6
2412                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2413                                             (net->flowlabel & 0x80000000)) {
2414                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2415                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2416                                         }
2417 #endif
2418                                 } else {
2419                                         /*
2420                                          * No destination so return default
2421                                          * value
2422                                          */
2423                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2424                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2425                                         if (stcb->asoc.default_dscp & 0x01) {
2426                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2427                                                 paddrp->spp_flags |= SPP_DSCP;
2428                                         }
2429 #ifdef INET6
2430                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2431                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2432                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2433                                         }
2434 #endif
2435                                         /* default settings should be these */
2436                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2437                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2438                                         } else {
2439                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2440                                         }
2441                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2442                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2443                                         } else {
2444                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2445                                         }
2446                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2447                                 }
2448                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2449                                 SCTP_TCB_UNLOCK(stcb);
2450                         } else {
2451                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2452                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2453                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2454                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2455                                         /* Use endpoint defaults */
2456                                         SCTP_INP_RLOCK(inp);
2457                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2458                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2459                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2460                                         /* get inp's default */
2461                                         if (inp->sctp_ep.default_dscp & 0x01) {
2462                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2463                                                 paddrp->spp_flags |= SPP_DSCP;
2464                                         }
2465 #ifdef INET6
2466                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2467                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2468                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2469                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2470                                         }
2471 #endif
2472                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2473
2474                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2475                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2476                                         } else {
2477                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2478                                         }
2479                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2480                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2481                                         } else {
2482                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2483                                         }
2484                                         SCTP_INP_RUNLOCK(inp);
2485                                 } else {
2486                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2487                                         error = EINVAL;
2488                                 }
2489                         }
2490                         if (error == 0) {
2491                                 *optsize = sizeof(struct sctp_paddrparams);
2492                         }
2493                         break;
2494                 }
2495         case SCTP_GET_PEER_ADDR_INFO:
2496                 {
2497                         struct sctp_paddrinfo *paddri;
2498                         struct sctp_nets *net;
2499                         struct sockaddr *addr;
2500 #if defined(INET) && defined(INET6)
2501                         struct sockaddr_in sin_store;
2502 #endif
2503
2504                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2505                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2506
2507 #if defined(INET) && defined(INET6)
2508                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2509                                 struct sockaddr_in6 *sin6;
2510
2511                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2512                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2513                                         in6_sin6_2_sin(&sin_store, sin6);
2514                                         addr = (struct sockaddr *)&sin_store;
2515                                 } else {
2516                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2517                                 }
2518                         } else {
2519                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2520                         }
2521 #else
2522                         addr = (struct sockaddr *)&paddri->spinfo_address;
2523 #endif
2524                         if (stcb != NULL) {
2525                                 net = sctp_findnet(stcb, addr);
2526                         } else {
2527                                 /*
2528                                  * We increment here since
2529                                  * sctp_findassociation_ep_addr() wil do a
2530                                  * decrement if it finds the stcb as long as
2531                                  * the locked tcb (last argument) is NOT a
2532                                  * TCB.. aka NULL.
2533                                  */
2534                                 net = NULL;
2535                                 SCTP_INP_INCR_REF(inp);
2536                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2537                                 if (stcb == NULL) {
2538                                         SCTP_INP_DECR_REF(inp);
2539                                 }
2540                         }
2541
2542                         if ((stcb != NULL) && (net != NULL)) {
2543                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2544                                         /* It's unconfirmed */
2545                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2546                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2547                                         /* It's active */
2548                                         paddri->spinfo_state = SCTP_ACTIVE;
2549                                 } else {
2550                                         /* It's inactive */
2551                                         paddri->spinfo_state = SCTP_INACTIVE;
2552                                 }
2553                                 paddri->spinfo_cwnd = net->cwnd;
2554                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2555                                 paddri->spinfo_rto = net->RTO;
2556                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2557                                 paddri->spinfo_mtu = net->mtu;
2558                                 switch (addr->sa_family) {
2559 #if defined(INET)
2560                                 case AF_INET:
2561                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2562                                         break;
2563 #endif
2564 #if defined(INET6)
2565                                 case AF_INET6:
2566                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2567                                         break;
2568 #endif
2569                                 default:
2570                                         break;
2571                                 }
2572                                 SCTP_TCB_UNLOCK(stcb);
2573                                 *optsize = sizeof(struct sctp_paddrinfo);
2574                         } else {
2575                                 if (stcb != NULL) {
2576                                         SCTP_TCB_UNLOCK(stcb);
2577                                 }
2578                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2579                                 error = ENOENT;
2580                         }
2581                         break;
2582                 }
2583         case SCTP_PCB_STATUS:
2584                 {
2585                         struct sctp_pcbinfo *spcb;
2586
2587                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2588                         sctp_fill_pcbinfo(spcb);
2589                         *optsize = sizeof(struct sctp_pcbinfo);
2590                         break;
2591                 }
2592         case SCTP_STATUS:
2593                 {
2594                         struct sctp_nets *net;
2595                         struct sctp_status *sstat;
2596
2597                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2598                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2599
2600                         if (stcb == NULL) {
2601                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2602                                 error = EINVAL;
2603                                 break;
2604                         }
2605                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2606                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2607                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2608                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2609                         /*
2610                          * We can't include chunks that have been passed to
2611                          * the socket layer. Only things in queue.
2612                          */
2613                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2614                             stcb->asoc.cnt_on_all_streams);
2615                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2616                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2617                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb);
2618                         net = stcb->asoc.primary_destination;
2619                         if (net != NULL) {
2620                                 memcpy(&sstat->sstat_primary.spinfo_address,
2621                                     &net->ro._l_addr,
2622                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2623                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2624                                 /*
2625                                  * Again the user can get info from
2626                                  * sctp_constants.h for what the state of
2627                                  * the network is.
2628                                  */
2629                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2630                                         /* It's unconfirmed */
2631                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2632                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2633                                         /* It's active */
2634                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2635                                 } else {
2636                                         /* It's inactive */
2637                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2638                                 }
2639                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2640                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2641                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2642                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2643                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2644 #if defined(INET)
2645                                 case AF_INET:
2646                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2647                                         break;
2648 #endif
2649 #if defined(INET6)
2650                                 case AF_INET6:
2651                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2652                                         break;
2653 #endif
2654                                 default:
2655                                         break;
2656                                 }
2657                         } else {
2658                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2659                         }
2660                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2661                         SCTP_TCB_UNLOCK(stcb);
2662                         *optsize = sizeof(struct sctp_status);
2663                         break;
2664                 }
2665         case SCTP_RTOINFO:
2666                 {
2667                         struct sctp_rtoinfo *srto;
2668
2669                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2670                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2671
2672                         if (stcb) {
2673                                 srto->srto_initial = stcb->asoc.initial_rto;
2674                                 srto->srto_max = stcb->asoc.maxrto;
2675                                 srto->srto_min = stcb->asoc.minrto;
2676                                 SCTP_TCB_UNLOCK(stcb);
2677                         } else {
2678                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2679                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2680                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2681                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2682                                         SCTP_INP_RLOCK(inp);
2683                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2684                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2685                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2686                                         SCTP_INP_RUNLOCK(inp);
2687                                 } else {
2688                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2689                                         error = EINVAL;
2690                                 }
2691                         }
2692                         if (error == 0) {
2693                                 *optsize = sizeof(struct sctp_rtoinfo);
2694                         }
2695                         break;
2696                 }
2697         case SCTP_TIMEOUTS:
2698                 {
2699                         struct sctp_timeouts *stimo;
2700
2701                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2702                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2703
2704                         if (stcb) {
2705                                 stimo->stimo_init = stcb->asoc.timoinit;
2706                                 stimo->stimo_data = stcb->asoc.timodata;
2707                                 stimo->stimo_sack = stcb->asoc.timosack;
2708                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2709                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2710                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2711                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2712                                 SCTP_TCB_UNLOCK(stcb);
2713                                 *optsize = sizeof(struct sctp_timeouts);
2714                         } else {
2715                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2716                                 error = EINVAL;
2717                         }
2718                         break;
2719                 }
2720         case SCTP_ASSOCINFO:
2721                 {
2722                         struct sctp_assocparams *sasoc;
2723
2724                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2725                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2726
2727                         if (stcb) {
2728                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2729                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2730                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2731                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2732                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2733                                 SCTP_TCB_UNLOCK(stcb);
2734                         } else {
2735                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2736                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2737                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2738                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2739                                         SCTP_INP_RLOCK(inp);
2740                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2741                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2742                                         sasoc->sasoc_number_peer_destinations = 0;
2743                                         sasoc->sasoc_peer_rwnd = 0;
2744                                         sasoc->sasoc_local_rwnd = (uint32_t)sbspace(&inp->sctp_socket->so_rcv);
2745                                         SCTP_INP_RUNLOCK(inp);
2746                                 } else {
2747                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2748                                         error = EINVAL;
2749                                 }
2750                         }
2751                         if (error == 0) {
2752                                 *optsize = sizeof(struct sctp_assocparams);
2753                         }
2754                         break;
2755                 }
2756         case SCTP_DEFAULT_SEND_PARAM:
2757                 {
2758                         struct sctp_sndrcvinfo *s_info;
2759
2760                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2761                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2762
2763                         if (stcb) {
2764                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2765                                 SCTP_TCB_UNLOCK(stcb);
2766                         } else {
2767                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2768                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2769                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2770                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2771                                         SCTP_INP_RLOCK(inp);
2772                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2773                                         SCTP_INP_RUNLOCK(inp);
2774                                 } else {
2775                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2776                                         error = EINVAL;
2777                                 }
2778                         }
2779                         if (error == 0) {
2780                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2781                         }
2782                         break;
2783                 }
2784         case SCTP_INITMSG:
2785                 {
2786                         struct sctp_initmsg *sinit;
2787
2788                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2789                         SCTP_INP_RLOCK(inp);
2790                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2791                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2792                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2793                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2794                         SCTP_INP_RUNLOCK(inp);
2795                         *optsize = sizeof(struct sctp_initmsg);
2796                         break;
2797                 }
2798         case SCTP_PRIMARY_ADDR:
2799                 /* we allow a "get" operation on this */
2800                 {
2801                         struct sctp_setprim *ssp;
2802
2803                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2804                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2805
2806                         if (stcb) {
2807                                 union sctp_sockstore *addr;
2808
2809                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2810                                 switch (addr->sa.sa_family) {
2811 #ifdef INET
2812                                 case AF_INET:
2813 #ifdef INET6
2814                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2815                                                 in6_sin_2_v4mapsin6(&addr->sin,
2816                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2817                                         } else {
2818                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2819                                         }
2820 #else
2821                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2822 #endif
2823                                         break;
2824 #endif
2825 #ifdef INET6
2826                                 case AF_INET6:
2827                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2828                                         break;
2829 #endif
2830                                 default:
2831                                         break;
2832                                 }
2833                                 SCTP_TCB_UNLOCK(stcb);
2834                                 *optsize = sizeof(struct sctp_setprim);
2835                         } else {
2836                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2837                                 error = EINVAL;
2838                         }
2839                         break;
2840                 }
2841         case SCTP_HMAC_IDENT:
2842                 {
2843                         struct sctp_hmacalgo *shmac;
2844                         sctp_hmaclist_t *hmaclist;
2845                         size_t size;
2846                         int i;
2847
2848                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2849
2850                         SCTP_INP_RLOCK(inp);
2851                         hmaclist = inp->sctp_ep.local_hmacs;
2852                         if (hmaclist == NULL) {
2853                                 /* no HMACs to return */
2854                                 *optsize = sizeof(*shmac);
2855                                 SCTP_INP_RUNLOCK(inp);
2856                                 break;
2857                         }
2858                         /* is there room for all of the hmac ids? */
2859                         size = sizeof(*shmac) + (hmaclist->num_algo *
2860                             sizeof(shmac->shmac_idents[0]));
2861                         if (*optsize < size) {
2862                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2863                                 error = EINVAL;
2864                                 SCTP_INP_RUNLOCK(inp);
2865                                 break;
2866                         }
2867                         /* copy in the list */
2868                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2869                         for (i = 0; i < hmaclist->num_algo; i++) {
2870                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2871                         }
2872                         SCTP_INP_RUNLOCK(inp);
2873                         *optsize = size;
2874                         break;
2875                 }
2876         case SCTP_AUTH_ACTIVE_KEY:
2877                 {
2878                         struct sctp_authkeyid *scact;
2879
2880                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2881                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2882
2883                         if (stcb) {
2884                                 /* get the active key on the assoc */
2885                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2886                                 SCTP_TCB_UNLOCK(stcb);
2887                         } else {
2888                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2889                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2890                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2891                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2892                                         /* get the endpoint active key */
2893                                         SCTP_INP_RLOCK(inp);
2894                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2895                                         SCTP_INP_RUNLOCK(inp);
2896                                 } else {
2897                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2898                                         error = EINVAL;
2899                                 }
2900                         }
2901                         if (error == 0) {
2902                                 *optsize = sizeof(struct sctp_authkeyid);
2903                         }
2904                         break;
2905                 }
2906         case SCTP_LOCAL_AUTH_CHUNKS:
2907                 {
2908                         struct sctp_authchunks *sac;
2909                         sctp_auth_chklist_t *chklist = NULL;
2910                         size_t size = 0;
2911
2912                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2913                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2914
2915                         if (stcb) {
2916                                 /* get off the assoc */
2917                                 chklist = stcb->asoc.local_auth_chunks;
2918                                 /* is there enough space? */
2919                                 size = sctp_auth_get_chklist_size(chklist);
2920                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2921                                         error = EINVAL;
2922                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2923                                 } else {
2924                                         /* copy in the chunks */
2925                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2926                                         sac->gauth_number_of_chunks = (uint32_t)size;
2927                                         *optsize = sizeof(struct sctp_authchunks) + size;
2928                                 }
2929                                 SCTP_TCB_UNLOCK(stcb);
2930                         } else {
2931                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2932                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2933                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2934                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2935                                         /* get off the endpoint */
2936                                         SCTP_INP_RLOCK(inp);
2937                                         chklist = inp->sctp_ep.local_auth_chunks;
2938                                         /* is there enough space? */
2939                                         size = sctp_auth_get_chklist_size(chklist);
2940                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2941                                                 error = EINVAL;
2942                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2943                                         } else {
2944                                                 /* copy in the chunks */
2945                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2946                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2947                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2948                                         }
2949                                         SCTP_INP_RUNLOCK(inp);
2950                                 } else {
2951                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2952                                         error = EINVAL;
2953                                 }
2954                         }
2955                         break;
2956                 }
2957         case SCTP_PEER_AUTH_CHUNKS:
2958                 {
2959                         struct sctp_authchunks *sac;
2960                         sctp_auth_chklist_t *chklist = NULL;
2961                         size_t size = 0;
2962
2963                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2964                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2965
2966                         if (stcb) {
2967                                 /* get off the assoc */
2968                                 chklist = stcb->asoc.peer_auth_chunks;
2969                                 /* is there enough space? */
2970                                 size = sctp_auth_get_chklist_size(chklist);
2971                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2972                                         error = EINVAL;
2973                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2974                                 } else {
2975                                         /* copy in the chunks */
2976                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2977                                         sac->gauth_number_of_chunks = (uint32_t)size;
2978                                         *optsize = sizeof(struct sctp_authchunks) + size;
2979                                 }
2980                                 SCTP_TCB_UNLOCK(stcb);
2981                         } else {
2982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2983                                 error = ENOENT;
2984                         }
2985                         break;
2986                 }
2987         case SCTP_EVENT:
2988                 {
2989                         struct sctp_event *event;
2990                         uint32_t event_type;
2991
2992                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2993                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2994
2995                         switch (event->se_type) {
2996                         case SCTP_ASSOC_CHANGE:
2997                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2998                                 break;
2999                         case SCTP_PEER_ADDR_CHANGE:
3000                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3001                                 break;
3002                         case SCTP_REMOTE_ERROR:
3003                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3004                                 break;
3005                         case SCTP_SEND_FAILED:
3006                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3007                                 break;
3008                         case SCTP_SHUTDOWN_EVENT:
3009                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3010                                 break;
3011                         case SCTP_ADAPTATION_INDICATION:
3012                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3013                                 break;
3014                         case SCTP_PARTIAL_DELIVERY_EVENT:
3015                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3016                                 break;
3017                         case SCTP_AUTHENTICATION_EVENT:
3018                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3019                                 break;
3020                         case SCTP_STREAM_RESET_EVENT:
3021                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3022                                 break;
3023                         case SCTP_SENDER_DRY_EVENT:
3024                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3025                                 break;
3026                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3027                                 event_type = 0;
3028                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3029                                 error = ENOTSUP;
3030                                 break;
3031                         case SCTP_ASSOC_RESET_EVENT:
3032                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3033                                 break;
3034                         case SCTP_STREAM_CHANGE_EVENT:
3035                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3036                                 break;
3037                         case SCTP_SEND_FAILED_EVENT:
3038                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3039                                 break;
3040                         default:
3041                                 event_type = 0;
3042                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3043                                 error = EINVAL;
3044                                 break;
3045                         }
3046                         if (event_type > 0) {
3047                                 if (stcb) {
3048                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3049                                 } else {
3050                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3051                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3052                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3053                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3054                                                 SCTP_INP_RLOCK(inp);
3055                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3056                                                 SCTP_INP_RUNLOCK(inp);
3057                                         } else {
3058                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3059                                                 error = EINVAL;
3060                                         }
3061                                 }
3062                         }
3063                         if (stcb != NULL) {
3064                                 SCTP_TCB_UNLOCK(stcb);
3065                         }
3066                         if (error == 0) {
3067                                 *optsize = sizeof(struct sctp_event);
3068                         }
3069                         break;
3070                 }
3071         case SCTP_RECVRCVINFO:
3072                 if (*optsize < sizeof(int)) {
3073                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3074                         error = EINVAL;
3075                 } else {
3076                         SCTP_INP_RLOCK(inp);
3077                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3078                         SCTP_INP_RUNLOCK(inp);
3079                         *optsize = sizeof(int);
3080                 }
3081                 break;
3082         case SCTP_RECVNXTINFO:
3083                 if (*optsize < sizeof(int)) {
3084                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3085                         error = EINVAL;
3086                 } else {
3087                         SCTP_INP_RLOCK(inp);
3088                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3089                         SCTP_INP_RUNLOCK(inp);
3090                         *optsize = sizeof(int);
3091                 }
3092                 break;
3093         case SCTP_DEFAULT_SNDINFO:
3094                 {
3095                         struct sctp_sndinfo *info;
3096
3097                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3098                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3099
3100                         if (stcb) {
3101                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3102                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3103                                 info->snd_flags &= 0xfff0;
3104                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3105                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3106                                 SCTP_TCB_UNLOCK(stcb);
3107                         } else {
3108                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3109                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3110                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3111                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3112                                         SCTP_INP_RLOCK(inp);
3113                                         info->snd_sid = inp->def_send.sinfo_stream;
3114                                         info->snd_flags = inp->def_send.sinfo_flags;
3115                                         info->snd_flags &= 0xfff0;
3116                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3117                                         info->snd_context = inp->def_send.sinfo_context;
3118                                         SCTP_INP_RUNLOCK(inp);
3119                                 } else {
3120                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3121                                         error = EINVAL;
3122                                 }
3123                         }
3124                         if (error == 0) {
3125                                 *optsize = sizeof(struct sctp_sndinfo);
3126                         }
3127                         break;
3128                 }
3129         case SCTP_DEFAULT_PRINFO:
3130                 {
3131                         struct sctp_default_prinfo *info;
3132
3133                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3134                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3135
3136                         if (stcb) {
3137                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3138                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3139                                 SCTP_TCB_UNLOCK(stcb);
3140                         } else {
3141                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3142                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3143                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3144                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3145                                         SCTP_INP_RLOCK(inp);
3146                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3147                                         info->pr_value = inp->def_send.sinfo_timetolive;
3148                                         SCTP_INP_RUNLOCK(inp);
3149                                 } else {
3150                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3151                                         error = EINVAL;
3152                                 }
3153                         }
3154                         if (error == 0) {
3155                                 *optsize = sizeof(struct sctp_default_prinfo);
3156                         }
3157                         break;
3158                 }
3159         case SCTP_PEER_ADDR_THLDS:
3160                 {
3161                         struct sctp_paddrthlds *thlds;
3162                         struct sctp_nets *net;
3163                         struct sockaddr *addr;
3164 #if defined(INET) && defined(INET6)
3165                         struct sockaddr_in sin_store;
3166 #endif
3167
3168                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3169                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3170
3171 #if defined(INET) && defined(INET6)
3172                         if (thlds->spt_address.ss_family == AF_INET6) {
3173                                 struct sockaddr_in6 *sin6;
3174
3175                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3176                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3177                                         in6_sin6_2_sin(&sin_store, sin6);
3178                                         addr = (struct sockaddr *)&sin_store;
3179                                 } else {
3180                                         addr = (struct sockaddr *)&thlds->spt_address;
3181                                 }
3182                         } else {
3183                                 addr = (struct sockaddr *)&thlds->spt_address;
3184                         }
3185 #else
3186                         addr = (struct sockaddr *)&thlds->spt_address;
3187 #endif
3188                         if (stcb != NULL) {
3189                                 net = sctp_findnet(stcb, addr);
3190                         } else {
3191                                 /*
3192                                  * We increment here since
3193                                  * sctp_findassociation_ep_addr() wil do a
3194                                  * decrement if it finds the stcb as long as
3195                                  * the locked tcb (last argument) is NOT a
3196                                  * TCB.. aka NULL.
3197                                  */
3198                                 net = NULL;
3199                                 SCTP_INP_INCR_REF(inp);
3200                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3201                                 if (stcb == NULL) {
3202                                         SCTP_INP_DECR_REF(inp);
3203                                 }
3204                         }
3205                         if ((stcb != NULL) && (net == NULL)) {
3206 #ifdef INET
3207                                 if (addr->sa_family == AF_INET) {
3208                                         struct sockaddr_in *sin;
3209
3210                                         sin = (struct sockaddr_in *)addr;
3211                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3212                                                 error = EINVAL;
3213                                                 SCTP_TCB_UNLOCK(stcb);
3214                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3215                                                 break;
3216                                         }
3217                                 } else
3218 #endif
3219 #ifdef INET6
3220                                 if (addr->sa_family == AF_INET6) {
3221                                         struct sockaddr_in6 *sin6;
3222
3223                                         sin6 = (struct sockaddr_in6 *)addr;
3224                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3225                                                 error = EINVAL;
3226                                                 SCTP_TCB_UNLOCK(stcb);
3227                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3228                                                 break;
3229                                         }
3230                                 } else
3231 #endif
3232                                 {
3233                                         error = EAFNOSUPPORT;
3234                                         SCTP_TCB_UNLOCK(stcb);
3235                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3236                                         break;
3237                                 }
3238                         }
3239
3240                         if (stcb != NULL) {
3241                                 if (net != NULL) {
3242                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3243                                         thlds->spt_pathpfthld = net->pf_threshold;
3244                                         thlds->spt_pathcpthld = 0xffff;
3245                                 } else {
3246                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3247                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3248                                         thlds->spt_pathcpthld = 0xffff;
3249                                 }
3250                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3251                                 SCTP_TCB_UNLOCK(stcb);
3252                         } else {
3253                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3254                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3255                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3256                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3257                                         /* Use endpoint defaults */
3258                                         SCTP_INP_RLOCK(inp);
3259                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3260                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3261                                         thlds->spt_pathcpthld = 0xffff;
3262                                         SCTP_INP_RUNLOCK(inp);
3263                                 } else {
3264                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3265                                         error = EINVAL;
3266                                 }
3267                         }
3268                         if (error == 0) {
3269                                 *optsize = sizeof(struct sctp_paddrthlds);
3270                         }
3271                         break;
3272                 }
3273         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3274                 {
3275                         struct sctp_udpencaps *encaps;
3276                         struct sctp_nets *net;
3277                         struct sockaddr *addr;
3278 #if defined(INET) && defined(INET6)
3279                         struct sockaddr_in sin_store;
3280 #endif
3281
3282                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3283                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3284
3285 #if defined(INET) && defined(INET6)
3286                         if (encaps->sue_address.ss_family == AF_INET6) {
3287                                 struct sockaddr_in6 *sin6;
3288
3289                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3290                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3291                                         in6_sin6_2_sin(&sin_store, sin6);
3292                                         addr = (struct sockaddr *)&sin_store;
3293                                 } else {
3294                                         addr = (struct sockaddr *)&encaps->sue_address;
3295                                 }
3296                         } else {
3297                                 addr = (struct sockaddr *)&encaps->sue_address;
3298                         }
3299 #else
3300                         addr = (struct sockaddr *)&encaps->sue_address;
3301 #endif
3302                         if (stcb) {
3303                                 net = sctp_findnet(stcb, addr);
3304                         } else {
3305                                 /*
3306                                  * We increment here since
3307                                  * sctp_findassociation_ep_addr() wil do a
3308                                  * decrement if it finds the stcb as long as
3309                                  * the locked tcb (last argument) is NOT a
3310                                  * TCB.. aka NULL.
3311                                  */
3312                                 net = NULL;
3313                                 SCTP_INP_INCR_REF(inp);
3314                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3315                                 if (stcb == NULL) {
3316                                         SCTP_INP_DECR_REF(inp);
3317                                 }
3318                         }
3319                         if ((stcb != NULL) && (net == NULL)) {
3320 #ifdef INET
3321                                 if (addr->sa_family == AF_INET) {
3322                                         struct sockaddr_in *sin;
3323
3324                                         sin = (struct sockaddr_in *)addr;
3325                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3326                                                 error = EINVAL;
3327                                                 SCTP_TCB_UNLOCK(stcb);
3328                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3329                                                 break;
3330                                         }
3331                                 } else
3332 #endif
3333 #ifdef INET6
3334                                 if (addr->sa_family == AF_INET6) {
3335                                         struct sockaddr_in6 *sin6;
3336
3337                                         sin6 = (struct sockaddr_in6 *)addr;
3338                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3339                                                 error = EINVAL;
3340                                                 SCTP_TCB_UNLOCK(stcb);
3341                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3342                                                 break;
3343                                         }
3344                                 } else
3345 #endif
3346                                 {
3347                                         error = EAFNOSUPPORT;
3348                                         SCTP_TCB_UNLOCK(stcb);
3349                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3350                                         break;
3351                                 }
3352                         }
3353
3354                         if (stcb != NULL) {
3355                                 if (net) {
3356                                         encaps->sue_port = net->port;
3357                                 } else {
3358                                         encaps->sue_port = stcb->asoc.port;
3359                                 }
3360                                 SCTP_TCB_UNLOCK(stcb);
3361                         } else {
3362                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3363                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3364                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3365                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3366                                         SCTP_INP_RLOCK(inp);
3367                                         encaps->sue_port = inp->sctp_ep.port;
3368                                         SCTP_INP_RUNLOCK(inp);
3369                                 } else {
3370                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3371                                         error = EINVAL;
3372                                 }
3373                         }
3374                         if (error == 0) {
3375                                 *optsize = sizeof(struct sctp_udpencaps);
3376                         }
3377                         break;
3378                 }
3379         case SCTP_ECN_SUPPORTED:
3380                 {
3381                         struct sctp_assoc_value *av;
3382
3383                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3384                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3385
3386                         if (stcb) {
3387                                 av->assoc_value = stcb->asoc.ecn_supported;
3388                                 SCTP_TCB_UNLOCK(stcb);
3389                         } else {
3390                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3391                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3392                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3393                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3394                                         SCTP_INP_RLOCK(inp);
3395                                         av->assoc_value = inp->ecn_supported;
3396                                         SCTP_INP_RUNLOCK(inp);
3397                                 } else {
3398                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3399                                         error = EINVAL;
3400                                 }
3401                         }
3402                         if (error == 0) {
3403                                 *optsize = sizeof(struct sctp_assoc_value);
3404                         }
3405                         break;
3406                 }
3407         case SCTP_PR_SUPPORTED:
3408                 {
3409                         struct sctp_assoc_value *av;
3410
3411                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3412                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3413
3414                         if (stcb) {
3415                                 av->assoc_value = stcb->asoc.prsctp_supported;
3416                                 SCTP_TCB_UNLOCK(stcb);
3417                         } else {
3418                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3419                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3420                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3421                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3422                                         SCTP_INP_RLOCK(inp);
3423                                         av->assoc_value = inp->prsctp_supported;
3424                                         SCTP_INP_RUNLOCK(inp);
3425                                 } else {
3426                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3427                                         error = EINVAL;
3428                                 }
3429                         }
3430                         if (error == 0) {
3431                                 *optsize = sizeof(struct sctp_assoc_value);
3432                         }
3433                         break;
3434                 }
3435         case SCTP_AUTH_SUPPORTED:
3436                 {
3437                         struct sctp_assoc_value *av;
3438
3439                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3440                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3441
3442                         if (stcb) {
3443                                 av->assoc_value = stcb->asoc.auth_supported;
3444                                 SCTP_TCB_UNLOCK(stcb);
3445                         } else {
3446                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3447                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3448                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3449                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3450                                         SCTP_INP_RLOCK(inp);
3451                                         av->assoc_value = inp->auth_supported;
3452                                         SCTP_INP_RUNLOCK(inp);
3453                                 } else {
3454                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3455                                         error = EINVAL;
3456                                 }
3457                         }
3458                         if (error == 0) {
3459                                 *optsize = sizeof(struct sctp_assoc_value);
3460                         }
3461                         break;
3462                 }
3463         case SCTP_ASCONF_SUPPORTED:
3464                 {
3465                         struct sctp_assoc_value *av;
3466
3467                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3468                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3469
3470                         if (stcb) {
3471                                 av->assoc_value = stcb->asoc.asconf_supported;
3472                                 SCTP_TCB_UNLOCK(stcb);
3473                         } else {
3474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3476                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3477                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3478                                         SCTP_INP_RLOCK(inp);
3479                                         av->assoc_value = inp->asconf_supported;
3480                                         SCTP_INP_RUNLOCK(inp);
3481                                 } else {
3482                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3483                                         error = EINVAL;
3484                                 }
3485                         }
3486                         if (error == 0) {
3487                                 *optsize = sizeof(struct sctp_assoc_value);
3488                         }
3489                         break;
3490                 }
3491         case SCTP_RECONFIG_SUPPORTED:
3492                 {
3493                         struct sctp_assoc_value *av;
3494
3495                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3496                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3497
3498                         if (stcb) {
3499                                 av->assoc_value = stcb->asoc.reconfig_supported;
3500                                 SCTP_TCB_UNLOCK(stcb);
3501                         } else {
3502                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3503                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3504                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3505                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3506                                         SCTP_INP_RLOCK(inp);
3507                                         av->assoc_value = inp->reconfig_supported;
3508                                         SCTP_INP_RUNLOCK(inp);
3509                                 } else {
3510                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3511                                         error = EINVAL;
3512                                 }
3513                         }
3514                         if (error == 0) {
3515                                 *optsize = sizeof(struct sctp_assoc_value);
3516                         }
3517                         break;
3518                 }
3519         case SCTP_NRSACK_SUPPORTED:
3520                 {
3521                         struct sctp_assoc_value *av;
3522
3523                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3524                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3525
3526                         if (stcb) {
3527                                 av->assoc_value = stcb->asoc.nrsack_supported;
3528                                 SCTP_TCB_UNLOCK(stcb);
3529                         } else {
3530                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3531                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3532                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3533                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3534                                         SCTP_INP_RLOCK(inp);
3535                                         av->assoc_value = inp->nrsack_supported;
3536                                         SCTP_INP_RUNLOCK(inp);
3537                                 } else {
3538                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3539                                         error = EINVAL;
3540                                 }
3541                         }
3542                         if (error == 0) {
3543                                 *optsize = sizeof(struct sctp_assoc_value);
3544                         }
3545                         break;
3546                 }
3547         case SCTP_PKTDROP_SUPPORTED:
3548                 {
3549                         struct sctp_assoc_value *av;
3550
3551                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3552                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3553
3554                         if (stcb) {
3555                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3556                                 SCTP_TCB_UNLOCK(stcb);
3557                         } else {
3558                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3559                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3560                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3561                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3562                                         SCTP_INP_RLOCK(inp);
3563                                         av->assoc_value = inp->pktdrop_supported;
3564                                         SCTP_INP_RUNLOCK(inp);
3565                                 } else {
3566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3567                                         error = EINVAL;
3568                                 }
3569                         }
3570                         if (error == 0) {
3571                                 *optsize = sizeof(struct sctp_assoc_value);
3572                         }
3573                         break;
3574                 }
3575         case SCTP_ENABLE_STREAM_RESET:
3576                 {
3577                         struct sctp_assoc_value *av;
3578
3579                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3580                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3581
3582                         if (stcb) {
3583                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3584                                 SCTP_TCB_UNLOCK(stcb);
3585                         } else {
3586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3588                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3589                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3590                                         SCTP_INP_RLOCK(inp);
3591                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3592                                         SCTP_INP_RUNLOCK(inp);
3593                                 } else {
3594                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3595                                         error = EINVAL;
3596                                 }
3597                         }
3598                         if (error == 0) {
3599                                 *optsize = sizeof(struct sctp_assoc_value);
3600                         }
3601                         break;
3602                 }
3603         case SCTP_PR_STREAM_STATUS:
3604                 {
3605                         struct sctp_prstatus *sprstat;
3606                         uint16_t sid;
3607                         uint16_t policy;
3608
3609                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3610                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3611
3612                         sid = sprstat->sprstat_sid;
3613                         policy = sprstat->sprstat_policy;
3614 #if defined(SCTP_DETAILED_STR_STATS)
3615                         if ((stcb != NULL) &&
3616                             (sid < stcb->asoc.streamoutcnt) &&
3617                             (policy != SCTP_PR_SCTP_NONE) &&
3618                             ((policy <= SCTP_PR_SCTP_MAX) ||
3619                             (policy == SCTP_PR_SCTP_ALL))) {
3620                                 if (policy == SCTP_PR_SCTP_ALL) {
3621                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3622                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3623                                 } else {
3624                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3625                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3626                                 }
3627 #else
3628                         if ((stcb != NULL) &&
3629                             (sid < stcb->asoc.streamoutcnt) &&
3630                             (policy == SCTP_PR_SCTP_ALL)) {
3631                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3632                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3633 #endif
3634                         } else {
3635                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3636                                 error = EINVAL;
3637                         }
3638                         if (stcb != NULL) {
3639                                 SCTP_TCB_UNLOCK(stcb);
3640                         }
3641                         if (error == 0) {
3642                                 *optsize = sizeof(struct sctp_prstatus);
3643                         }
3644                         break;
3645                 }
3646         case SCTP_PR_ASSOC_STATUS:
3647                 {
3648                         struct sctp_prstatus *sprstat;
3649                         uint16_t policy;
3650
3651                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3652                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3653
3654                         policy = sprstat->sprstat_policy;
3655                         if ((stcb != NULL) &&
3656                             (policy != SCTP_PR_SCTP_NONE) &&
3657                             ((policy <= SCTP_PR_SCTP_MAX) ||
3658                             (policy == SCTP_PR_SCTP_ALL))) {
3659                                 if (policy == SCTP_PR_SCTP_ALL) {
3660                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3661                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3662                                 } else {
3663                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3664                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3665                                 }
3666                         } else {
3667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3668                                 error = EINVAL;
3669                         }
3670                         if (stcb != NULL) {
3671                                 SCTP_TCB_UNLOCK(stcb);
3672                         }
3673                         if (error == 0) {
3674                                 *optsize = sizeof(struct sctp_prstatus);
3675                         }
3676                         break;
3677                 }
3678         case SCTP_MAX_CWND:
3679                 {
3680                         struct sctp_assoc_value *av;
3681
3682                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3683                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3684
3685                         if (stcb) {
3686                                 av->assoc_value = stcb->asoc.max_cwnd;
3687                                 SCTP_TCB_UNLOCK(stcb);
3688                         } else {
3689                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3690                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3691                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3692                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3693                                         SCTP_INP_RLOCK(inp);
3694                                         av->assoc_value = inp->max_cwnd;
3695                                         SCTP_INP_RUNLOCK(inp);
3696                                 } else {
3697                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3698                                         error = EINVAL;
3699                                 }
3700                         }
3701                         if (error == 0) {
3702                                 *optsize = sizeof(struct sctp_assoc_value);
3703                         }
3704                         break;
3705                 }
3706         default:
3707                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3708                 error = ENOPROTOOPT;
3709                 break;
3710         }                       /* end switch (sopt->sopt_name) */
3711         if (error) {
3712                 *optsize = 0;
3713         }
3714         return (error);
3715 }
3716
3717 static int
3718 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3719     void *p)
3720 {
3721         int error, set_opt;
3722         uint32_t *mopt;
3723         struct sctp_tcb *stcb = NULL;
3724         struct sctp_inpcb *inp = NULL;
3725         uint32_t vrf_id;
3726
3727         if (optval == NULL) {
3728                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3729                 return (EINVAL);
3730         }
3731         inp = (struct sctp_inpcb *)so->so_pcb;
3732         if (inp == NULL) {
3733                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3734                 return (EINVAL);
3735         }
3736         vrf_id = inp->def_vrf_id;
3737
3738         error = 0;
3739         switch (optname) {
3740         case SCTP_NODELAY:
3741         case SCTP_AUTOCLOSE:
3742         case SCTP_AUTO_ASCONF:
3743         case SCTP_EXPLICIT_EOR:
3744         case SCTP_DISABLE_FRAGMENTS:
3745         case SCTP_USE_EXT_RCVINFO:
3746         case SCTP_I_WANT_MAPPED_V4_ADDR:
3747                 /* copy in the option value */
3748                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3749                 set_opt = 0;
3750                 if (error)
3751                         break;
3752                 switch (optname) {
3753                 case SCTP_DISABLE_FRAGMENTS:
3754                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3755                         break;
3756                 case SCTP_AUTO_ASCONF:
3757                         /*
3758                          * NOTE: we don't really support this flag
3759                          */
3760                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3761                                 /* only valid for bound all sockets */
3762                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3763                                     (*mopt != 0)) {
3764                                         /* forbidden by admin */
3765                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3766                                         return (EPERM);
3767                                 }
3768                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3769                         } else {
3770                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3771                                 return (EINVAL);
3772                         }
3773                         break;
3774                 case SCTP_EXPLICIT_EOR:
3775                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3776                         break;
3777                 case SCTP_USE_EXT_RCVINFO:
3778                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3779                         break;
3780                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3781                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3782                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3783                         } else {
3784                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3785                                 return (EINVAL);
3786                         }
3787                         break;
3788                 case SCTP_NODELAY:
3789                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3790                         break;
3791                 case SCTP_AUTOCLOSE:
3792                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3793                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3794                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3795                                 return (EINVAL);
3796                         }
3797                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3798                         /*
3799                          * The value is in ticks. Note this does not effect
3800                          * old associations, only new ones.
3801                          */
3802                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3803                         break;
3804                 }
3805                 SCTP_INP_WLOCK(inp);
3806                 if (*mopt != 0) {
3807                         sctp_feature_on(inp, set_opt);
3808                 } else {
3809                         sctp_feature_off(inp, set_opt);
3810                 }
3811                 SCTP_INP_WUNLOCK(inp);
3812                 break;
3813         case SCTP_REUSE_PORT:
3814                 {
3815                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3816                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3817                                 /* Can't set it after we are bound */
3818                                 error = EINVAL;
3819                                 break;
3820                         }
3821                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3822                                 /* Can't do this for a 1-m socket */
3823                                 error = EINVAL;
3824                                 break;
3825                         }
3826                         if (optval)
3827                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3828                         else
3829                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3830                         break;
3831                 }
3832         case SCTP_PARTIAL_DELIVERY_POINT:
3833                 {
3834                         uint32_t *value;
3835
3836                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3837                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3838                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3839                                 error = EINVAL;
3840                                 break;
3841                         }
3842                         inp->partial_delivery_point = *value;
3843                         break;
3844                 }
3845         case SCTP_FRAGMENT_INTERLEAVE:
3846                 /* not yet until we re-write sctp_recvmsg() */
3847                 {
3848                         uint32_t *level;
3849
3850                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3851                         if (*level == SCTP_FRAG_LEVEL_2) {
3852                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3853                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3854                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3855                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3856                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3857                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3858                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3859                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3860
3861                         } else {
3862                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3863                                 error = EINVAL;
3864                         }
3865                         break;
3866                 }
3867         case SCTP_INTERLEAVING_SUPPORTED:
3868                 {
3869                         struct sctp_assoc_value *av;
3870
3871                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3872                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3873
3874                         if (stcb) {
3875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3876                                 error = EINVAL;
3877                                 SCTP_TCB_UNLOCK(stcb);
3878                         } else {
3879                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3880                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3881                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3882                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3883                                         SCTP_INP_WLOCK(inp);
3884                                         if (av->assoc_value == 0) {
3885                                                 inp->idata_supported = 0;
3886                                         } else {
3887                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3888                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3889                                                         inp->idata_supported = 1;
3890                                                 } else {
3891                                                         /*
3892                                                          * Must have Frag
3893                                                          * interleave and
3894                                                          * stream interleave
3895                                                          * on
3896                                                          */
3897                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3898                                                         error = EINVAL;
3899                                                 }
3900                                         }
3901                                         SCTP_INP_WUNLOCK(inp);
3902                                 } else {
3903                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3904                                         error = EINVAL;
3905                                 }
3906                         }
3907                         break;
3908                 }
3909         case SCTP_CMT_ON_OFF:
3910                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3911                         struct sctp_assoc_value *av;
3912
3913                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3914                         if (av->assoc_value > SCTP_CMT_MAX) {
3915                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3916                                 error = EINVAL;
3917                                 break;
3918                         }
3919                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3920                         if (stcb) {
3921                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3922                                 SCTP_TCB_UNLOCK(stcb);
3923                         } else {
3924                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3925                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3926                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3927                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3928                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3929                                         SCTP_INP_WLOCK(inp);
3930                                         inp->sctp_cmt_on_off = av->assoc_value;
3931                                         SCTP_INP_WUNLOCK(inp);
3932                                 }
3933                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3934                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3935                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3936                                         SCTP_INP_RLOCK(inp);
3937                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3938                                                 SCTP_TCB_LOCK(stcb);
3939                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3940                                                 SCTP_TCB_UNLOCK(stcb);
3941                                         }
3942                                         SCTP_INP_RUNLOCK(inp);
3943                                 }
3944                         }
3945                 } else {
3946                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3947                         error = ENOPROTOOPT;
3948                 }
3949                 break;
3950         case SCTP_PLUGGABLE_CC:
3951                 {
3952                         struct sctp_assoc_value *av;
3953                         struct sctp_nets *net;
3954
3955                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3956                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3957                             (av->assoc_value != SCTP_CC_HSTCP) &&
3958                             (av->assoc_value != SCTP_CC_HTCP) &&
3959                             (av->assoc_value != SCTP_CC_RTCC)) {
3960                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3961                                 error = EINVAL;
3962                                 break;
3963                         }
3964                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3965                         if (stcb) {
3966                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3967                                 stcb->asoc.congestion_control_module = av->assoc_value;
3968                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3969                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3970                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3971                                         }
3972                                 }
3973                                 SCTP_TCB_UNLOCK(stcb);
3974                         } else {
3975                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3976                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3977                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3978                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3979                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3980                                         SCTP_INP_WLOCK(inp);
3981                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3982                                         SCTP_INP_WUNLOCK(inp);
3983                                 }
3984                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3985                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3986                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3987                                         SCTP_INP_RLOCK(inp);
3988                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3989                                                 SCTP_TCB_LOCK(stcb);
3990                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3991                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3992                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3993                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3994                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3995                                                         }
3996                                                 }
3997                                                 SCTP_TCB_UNLOCK(stcb);
3998                                         }
3999                                         SCTP_INP_RUNLOCK(inp);
4000                                 }
4001                         }
4002                         break;
4003                 }
4004         case SCTP_CC_OPTION:
4005                 {
4006                         struct sctp_cc_option *cc_opt;
4007
4008                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4009                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4010                         if (stcb == NULL) {
4011                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4012                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4013                                         SCTP_INP_RLOCK(inp);
4014                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4015                                                 SCTP_TCB_LOCK(stcb);
4016                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4017                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4018                                                 }
4019                                                 SCTP_TCB_UNLOCK(stcb);
4020                                         }
4021                                         SCTP_INP_RUNLOCK(inp);
4022                                 } else {
4023                                         error = EINVAL;
4024                                 }
4025                         } else {
4026                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4027                                         error = ENOTSUP;
4028                                 } else {
4029                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4030                                             cc_opt);
4031                                 }
4032                                 SCTP_TCB_UNLOCK(stcb);
4033                         }
4034                         break;
4035                 }
4036         case SCTP_STREAM_SCHEDULER:
4037                 {
4038                         struct sctp_assoc_value *av;
4039
4040                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4041                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4042                             (av->assoc_value != SCTP_SS_RR) &&
4043                             (av->assoc_value != SCTP_SS_RR_PKT) &&
4044                             (av->assoc_value != SCTP_SS_PRIO) &&
4045                             (av->assoc_value != SCTP_SS_FB) &&
4046                             (av->assoc_value != SCTP_SS_FCFS)) {
4047                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4048                                 error = EINVAL;
4049                                 break;
4050                         }
4051                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4052                         if (stcb) {
4053                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4054                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4055                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4056                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4057                                 SCTP_TCB_UNLOCK(stcb);
4058                         } else {
4059                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4060                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4061                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4062                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4063                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4064                                         SCTP_INP_WLOCK(inp);
4065                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4066                                         SCTP_INP_WUNLOCK(inp);
4067                                 }
4068                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4069                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4070                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4071                                         SCTP_INP_RLOCK(inp);
4072                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4073                                                 SCTP_TCB_LOCK(stcb);
4074                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4075                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4076                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4077                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4078                                                 SCTP_TCB_UNLOCK(stcb);
4079                                         }
4080                                         SCTP_INP_RUNLOCK(inp);
4081                                 }
4082                         }
4083                         break;
4084                 }
4085         case SCTP_STREAM_SCHEDULER_VALUE:
4086                 {
4087                         struct sctp_stream_value *av;
4088
4089                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4090                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4091                         if (stcb) {
4092                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4093                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4094                                     av->stream_value) < 0)) {
4095                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4096                                         error = EINVAL;
4097                                 }
4098                                 SCTP_TCB_UNLOCK(stcb);
4099                         } else {
4100                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4101                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4102                                         SCTP_INP_RLOCK(inp);
4103                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4104                                                 SCTP_TCB_LOCK(stcb);
4105                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4106                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4107                                                             &stcb->asoc,
4108                                                             &stcb->asoc.strmout[av->stream_id],
4109                                                             av->stream_value);
4110                                                 }
4111                                                 SCTP_TCB_UNLOCK(stcb);
4112                                         }
4113                                         SCTP_INP_RUNLOCK(inp);
4114                                 } else {
4115                                         /*
4116                                          * Can't set stream value without
4117                                          * association
4118                                          */
4119                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4120                                         error = EINVAL;
4121                                 }
4122                         }
4123                         break;
4124                 }
4125         case SCTP_CLR_STAT_LOG:
4126                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4127                 error = EOPNOTSUPP;
4128                 break;
4129         case SCTP_CONTEXT:
4130                 {
4131                         struct sctp_assoc_value *av;
4132
4133                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4134                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4135
4136                         if (stcb) {
4137                                 stcb->asoc.context = av->assoc_value;
4138                                 SCTP_TCB_UNLOCK(stcb);
4139                         } else {
4140                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4141                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4142                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4143                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4144                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4145                                         SCTP_INP_WLOCK(inp);
4146                                         inp->sctp_context = av->assoc_value;
4147                                         SCTP_INP_WUNLOCK(inp);
4148                                 }
4149                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4150                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4151                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4152                                         SCTP_INP_RLOCK(inp);
4153                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4154                                                 SCTP_TCB_LOCK(stcb);
4155                                                 stcb->asoc.context = av->assoc_value;
4156                                                 SCTP_TCB_UNLOCK(stcb);
4157                                         }
4158                                         SCTP_INP_RUNLOCK(inp);
4159                                 }
4160                         }
4161                         break;
4162                 }
4163         case SCTP_VRF_ID:
4164                 {
4165                         uint32_t *default_vrfid;
4166
4167                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4168                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4169                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4170                                 error = EINVAL;
4171                                 break;
4172                         }
4173                         inp->def_vrf_id = *default_vrfid;
4174                         break;
4175                 }
4176         case SCTP_DEL_VRF_ID:
4177                 {
4178                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4179                         error = EOPNOTSUPP;
4180                         break;
4181                 }
4182         case SCTP_ADD_VRF_ID:
4183                 {
4184                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4185                         error = EOPNOTSUPP;
4186                         break;
4187                 }
4188         case SCTP_DELAYED_SACK:
4189                 {
4190                         struct sctp_sack_info *sack;
4191
4192                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4193                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4194                         if (sack->sack_delay) {
4195                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4196                                         error = EINVAL;
4197                                         if (stcb != NULL) {
4198                                                 SCTP_TCB_UNLOCK(stcb);
4199                                         }
4200                                         break;
4201                                 }
4202                         }
4203                         if (stcb) {
4204                                 if (sack->sack_delay) {
4205                                         stcb->asoc.delayed_ack = sack->sack_delay;
4206                                 }
4207                                 if (sack->sack_freq) {
4208                                         stcb->asoc.sack_freq = sack->sack_freq;
4209                                 }
4210                                 SCTP_TCB_UNLOCK(stcb);
4211                         } else {
4212                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4213                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4214                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4215                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4216                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4217                                         SCTP_INP_WLOCK(inp);
4218                                         if (sack->sack_delay) {
4219                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4220                                         }
4221                                         if (sack->sack_freq) {
4222                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4223                                         }
4224                                         SCTP_INP_WUNLOCK(inp);
4225                                 }
4226                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4227                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4228                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4229                                         SCTP_INP_RLOCK(inp);
4230                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4231                                                 SCTP_TCB_LOCK(stcb);
4232                                                 if (sack->sack_delay) {
4233                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4234                                                 }
4235                                                 if (sack->sack_freq) {
4236                                                         stcb->asoc.sack_freq = sack->sack_freq;
4237                                                 }
4238                                                 SCTP_TCB_UNLOCK(stcb);
4239                                         }
4240                                         SCTP_INP_RUNLOCK(inp);
4241                                 }
4242                         }
4243                         break;
4244                 }
4245         case SCTP_AUTH_CHUNK:
4246                 {
4247                         struct sctp_authchunk *sauth;
4248
4249                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4250
4251                         SCTP_INP_WLOCK(inp);
4252                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4253                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4254                                 error = EINVAL;
4255                         } else {
4256                                 inp->auth_supported = 1;
4257                         }
4258                         SCTP_INP_WUNLOCK(inp);
4259                         break;
4260                 }
4261         case SCTP_AUTH_KEY:
4262                 {
4263                         struct sctp_authkey *sca;
4264                         struct sctp_keyhead *shared_keys;
4265                         sctp_sharedkey_t *shared_key;
4266                         sctp_key_t *key = NULL;
4267                         size_t size;
4268
4269                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4270                         if (sca->sca_keylength == 0) {
4271                                 size = optsize - sizeof(struct sctp_authkey);
4272                         } else {
4273                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4274                                         size = sca->sca_keylength;
4275                                 } else {
4276                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4277                                         error = EINVAL;
4278                                         break;
4279                                 }
4280                         }
4281                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4282
4283                         if (stcb) {
4284                                 shared_keys = &stcb->asoc.shared_keys;
4285                                 /* clear the cached keys for this key id */
4286                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4287                                 /*
4288                                  * create the new shared key and
4289                                  * insert/replace it
4290                                  */
4291                                 if (size > 0) {
4292                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4293                                         if (key == NULL) {
4294                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4295                                                 error = ENOMEM;
4296                                                 SCTP_TCB_UNLOCK(stcb);
4297                                                 break;
4298                                         }
4299                                 }
4300                                 shared_key = sctp_alloc_sharedkey();
4301                                 if (shared_key == NULL) {
4302                                         sctp_free_key(key);
4303                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4304                                         error = ENOMEM;
4305                                         SCTP_TCB_UNLOCK(stcb);
4306                                         break;
4307                                 }
4308                                 shared_key->key = key;
4309                                 shared_key->keyid = sca->sca_keynumber;
4310                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4311                                 SCTP_TCB_UNLOCK(stcb);
4312                         } else {
4313                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4314                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4315                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4316                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4317                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4318                                         SCTP_INP_WLOCK(inp);
4319                                         shared_keys = &inp->sctp_ep.shared_keys;
4320                                         /*
4321                                          * clear the cached keys on all
4322                                          * assocs for this key id
4323                                          */
4324                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4325                                         /*
4326                                          * create the new shared key and
4327                                          * insert/replace it
4328                                          */
4329                                         if (size > 0) {
4330                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4331                                                 if (key == NULL) {
4332                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4333                                                         error = ENOMEM;
4334                                                         SCTP_INP_WUNLOCK(inp);
4335                                                         break;
4336                                                 }
4337                                         }
4338                                         shared_key = sctp_alloc_sharedkey();
4339                                         if (shared_key == NULL) {
4340                                                 sctp_free_key(key);
4341                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4342                                                 error = ENOMEM;
4343                                                 SCTP_INP_WUNLOCK(inp);
4344                                                 break;
4345                                         }
4346                                         shared_key->key = key;
4347                                         shared_key->keyid = sca->sca_keynumber;
4348                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4349                                         SCTP_INP_WUNLOCK(inp);
4350                                 }
4351                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4352                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4353                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4354                                         SCTP_INP_RLOCK(inp);
4355                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4356                                                 SCTP_TCB_LOCK(stcb);
4357                                                 shared_keys = &stcb->asoc.shared_keys;
4358                                                 /*
4359                                                  * clear the cached keys for
4360                                                  * this key id
4361                                                  */
4362                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4363                                                 /*
4364                                                  * create the new shared key
4365                                                  * and insert/replace it
4366                                                  */
4367                                                 if (size > 0) {
4368                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4369                                                         if (key == NULL) {
4370                                                                 SCTP_TCB_UNLOCK(stcb);
4371                                                                 continue;
4372                                                         }
4373                                                 }
4374                                                 shared_key = sctp_alloc_sharedkey();
4375                                                 if (shared_key == NULL) {
4376                                                         sctp_free_key(key);
4377                                                         SCTP_TCB_UNLOCK(stcb);
4378                                                         continue;
4379                                                 }
4380                                                 shared_key->key = key;
4381                                                 shared_key->keyid = sca->sca_keynumber;
4382                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4383                                                 SCTP_TCB_UNLOCK(stcb);
4384                                         }
4385                                         SCTP_INP_RUNLOCK(inp);
4386                                 }
4387                         }
4388                         break;
4389                 }
4390         case SCTP_HMAC_IDENT:
4391                 {
4392                         struct sctp_hmacalgo *shmac;
4393                         sctp_hmaclist_t *hmaclist;
4394                         uint16_t hmacid;
4395                         uint32_t i;
4396
4397                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4398                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4399                             (shmac->shmac_number_of_idents > 0xffff)) {
4400                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4401                                 error = EINVAL;
4402                                 break;
4403                         }
4404
4405                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4406                         if (hmaclist == NULL) {
4407                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4408                                 error = ENOMEM;
4409                                 break;
4410                         }
4411                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4412                                 hmacid = shmac->shmac_idents[i];
4413                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4414                                          /* invalid HMACs were found */ ;
4415                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4416                                         error = EINVAL;
4417                                         sctp_free_hmaclist(hmaclist);
4418                                         goto sctp_set_hmac_done;
4419                                 }
4420                         }
4421                         for (i = 0; i < hmaclist->num_algo; i++) {
4422                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4423                                         /* already in list */
4424                                         break;
4425                                 }
4426                         }
4427                         if (i == hmaclist->num_algo) {
4428                                 /* not found in list */
4429                                 sctp_free_hmaclist(hmaclist);
4430                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4431                                 error = EINVAL;
4432                                 break;
4433                         }
4434                         /* set it on the endpoint */
4435                         SCTP_INP_WLOCK(inp);
4436                         if (inp->sctp_ep.local_hmacs)
4437                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4438                         inp->sctp_ep.local_hmacs = hmaclist;
4439                         SCTP_INP_WUNLOCK(inp);
4440         sctp_set_hmac_done:
4441                         break;
4442                 }
4443         case SCTP_AUTH_ACTIVE_KEY:
4444                 {
4445                         struct sctp_authkeyid *scact;
4446
4447                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4448                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4449
4450                         /* set the active key on the right place */
4451                         if (stcb) {
4452                                 /* set the active key on the assoc */
4453                                 if (sctp_auth_setactivekey(stcb,
4454                                     scact->scact_keynumber)) {
4455                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4456                                             SCTP_FROM_SCTP_USRREQ,
4457                                             EINVAL);
4458                                         error = EINVAL;
4459                                 }
4460                                 SCTP_TCB_UNLOCK(stcb);
4461                         } else {
4462                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4463                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4464                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4465                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4466                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4467                                         SCTP_INP_WLOCK(inp);
4468                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4469                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4470                                                 error = EINVAL;
4471                                         }
4472                                         SCTP_INP_WUNLOCK(inp);
4473                                 }
4474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4475                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4476                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4477                                         SCTP_INP_RLOCK(inp);
4478                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4479                                                 SCTP_TCB_LOCK(stcb);
4480                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4481                                                 SCTP_TCB_UNLOCK(stcb);
4482                                         }
4483                                         SCTP_INP_RUNLOCK(inp);
4484                                 }
4485                         }
4486                         break;
4487                 }
4488         case SCTP_AUTH_DELETE_KEY:
4489                 {
4490                         struct sctp_authkeyid *scdel;
4491
4492                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4493                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4494
4495                         /* delete the key from the right place */
4496                         if (stcb) {
4497                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4498                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4499                                         error = EINVAL;
4500                                 }
4501                                 SCTP_TCB_UNLOCK(stcb);
4502                         } else {
4503                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4504                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4505                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4506                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4507                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4508                                         SCTP_INP_WLOCK(inp);
4509                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4510                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4511                                                 error = EINVAL;
4512                                         }
4513                                         SCTP_INP_WUNLOCK(inp);
4514                                 }
4515                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4516                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4517                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4518                                         SCTP_INP_RLOCK(inp);
4519                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4520                                                 SCTP_TCB_LOCK(stcb);
4521                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4522                                                 SCTP_TCB_UNLOCK(stcb);
4523                                         }
4524                                         SCTP_INP_RUNLOCK(inp);
4525                                 }
4526                         }
4527                         break;
4528                 }
4529         case SCTP_AUTH_DEACTIVATE_KEY:
4530                 {
4531                         struct sctp_authkeyid *keyid;
4532
4533                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4534                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4535
4536                         /* deactivate the key from the right place */
4537                         if (stcb) {
4538                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4539                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4540                                         error = EINVAL;
4541                                 }
4542                                 SCTP_TCB_UNLOCK(stcb);
4543                         } else {
4544                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4545                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4546                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4547                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4548                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4549                                         SCTP_INP_WLOCK(inp);
4550                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4551                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4552                                                 error = EINVAL;
4553                                         }
4554                                         SCTP_INP_WUNLOCK(inp);
4555                                 }
4556                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4557                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4558                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4559                                         SCTP_INP_RLOCK(inp);
4560                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4561                                                 SCTP_TCB_LOCK(stcb);
4562                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4563                                                 SCTP_TCB_UNLOCK(stcb);
4564                                         }
4565                                         SCTP_INP_RUNLOCK(inp);
4566                                 }
4567                         }
4568                         break;
4569                 }
4570         case SCTP_ENABLE_STREAM_RESET:
4571                 {
4572                         struct sctp_assoc_value *av;
4573
4574                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4575                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4576                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4577                                 error = EINVAL;
4578                                 break;
4579                         }
4580                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4581                         if (stcb) {
4582                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4583                                 SCTP_TCB_UNLOCK(stcb);
4584                         } else {
4585                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4586                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4587                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4588                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4589                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4590                                         SCTP_INP_WLOCK(inp);
4591                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4592                                         SCTP_INP_WUNLOCK(inp);
4593                                 }
4594                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4595                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4596                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4597                                         SCTP_INP_RLOCK(inp);
4598                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4599                                                 SCTP_TCB_LOCK(stcb);
4600                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4601                                                 SCTP_TCB_UNLOCK(stcb);
4602                                         }
4603                                         SCTP_INP_RUNLOCK(inp);
4604                                 }
4605                         }
4606                         break;
4607                 }
4608         case SCTP_RESET_STREAMS:
4609                 {
4610                         struct sctp_reset_streams *strrst;
4611                         int i, send_out = 0;
4612                         int send_in = 0;
4613
4614                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4615                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4616                         if (stcb == NULL) {
4617                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4618                                 error = ENOENT;
4619                                 break;
4620                         }
4621                         if (stcb->asoc.reconfig_supported == 0) {
4622                                 /*
4623                                  * Peer does not support the chunk type.
4624                                  */
4625                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4626                                 error = EOPNOTSUPP;
4627                                 SCTP_TCB_UNLOCK(stcb);
4628                                 break;
4629                         }
4630                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4631                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4632                                 error = EINVAL;
4633                                 SCTP_TCB_UNLOCK(stcb);
4634                                 break;
4635                         }
4636                         if (sizeof(struct sctp_reset_streams) +
4637                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4638                                 error = EINVAL;
4639                                 SCTP_TCB_UNLOCK(stcb);
4640                                 break;
4641                         }
4642                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4643                                 send_in = 1;
4644                                 if (stcb->asoc.stream_reset_outstanding) {
4645                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4646                                         error = EALREADY;
4647                                         SCTP_TCB_UNLOCK(stcb);
4648                                         break;
4649                                 }
4650                         }
4651                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4652                                 send_out = 1;
4653                         }
4654                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4655                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4656                                 error = ENOMEM;
4657                                 SCTP_TCB_UNLOCK(stcb);
4658                                 break;
4659                         }
4660                         if ((send_in == 0) && (send_out == 0)) {
4661                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4662                                 error = EINVAL;
4663                                 SCTP_TCB_UNLOCK(stcb);
4664                                 break;
4665                         }
4666                         for (i = 0; i < strrst->srs_number_streams; i++) {
4667                                 if ((send_in) &&
4668                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4669                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4670                                         error = EINVAL;
4671                                         break;
4672                                 }
4673                                 if ((send_out) &&
4674                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4675                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4676                                         error = EINVAL;
4677                                         break;
4678                                 }
4679                         }
4680                         if (error) {
4681                                 SCTP_TCB_UNLOCK(stcb);
4682                                 break;
4683                         }
4684                         if (send_out) {
4685                                 int cnt;
4686                                 uint16_t strm;
4687
4688                                 if (strrst->srs_number_streams) {
4689                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4690                                                 strm = strrst->srs_stream_list[i];
4691                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4692                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4693                                                         cnt++;
4694                                                 }
4695                                         }
4696                                 } else {
4697                                         /* Its all */
4698                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4699                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4700                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4701                                                         cnt++;
4702                                                 }
4703                                         }
4704                                 }
4705                         }
4706                         if (send_in) {
4707                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4708                                     strrst->srs_stream_list,
4709                                     send_in, 0, 0, 0, 0, 0);
4710                         } else {
4711                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4712                         }
4713                         if (error == 0) {
4714                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4715                         } else {
4716                                 /*
4717                                  * For outgoing streams don't report any
4718                                  * problems in sending the request to the
4719                                  * application. XXX: Double check resetting
4720                                  * incoming streams.
4721                                  */
4722                                 error = 0;
4723                         }
4724                         SCTP_TCB_UNLOCK(stcb);
4725                         break;
4726                 }
4727         case SCTP_ADD_STREAMS:
4728                 {
4729                         struct sctp_add_streams *stradd;
4730                         uint8_t addstream = 0;
4731                         uint16_t add_o_strmcnt = 0;
4732                         uint16_t add_i_strmcnt = 0;
4733
4734                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4735                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4736                         if (stcb == NULL) {
4737                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4738                                 error = ENOENT;
4739                                 break;
4740                         }
4741                         if (stcb->asoc.reconfig_supported == 0) {
4742                                 /*
4743                                  * Peer does not support the chunk type.
4744                                  */
4745                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4746                                 error = EOPNOTSUPP;
4747                                 SCTP_TCB_UNLOCK(stcb);
4748                                 break;
4749                         }
4750                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4751                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4752                                 error = EINVAL;
4753                                 SCTP_TCB_UNLOCK(stcb);
4754                                 break;
4755                         }
4756                         if (stcb->asoc.stream_reset_outstanding) {
4757                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4758                                 error = EALREADY;
4759                                 SCTP_TCB_UNLOCK(stcb);
4760                                 break;
4761                         }
4762                         if ((stradd->sas_outstrms == 0) &&
4763                             (stradd->sas_instrms == 0)) {
4764                                 error = EINVAL;
4765                                 goto skip_stuff;
4766                         }
4767                         if (stradd->sas_outstrms) {
4768                                 addstream = 1;
4769                                 /* We allocate here */
4770                                 add_o_strmcnt = stradd->sas_outstrms;
4771                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4772                                         /* You can't have more than 64k */
4773                                         error = EINVAL;
4774                                         goto skip_stuff;
4775                                 }
4776                         }
4777                         if (stradd->sas_instrms) {
4778                                 int cnt;
4779
4780                                 addstream |= 2;
4781                                 /*
4782                                  * We allocate inside
4783                                  * sctp_send_str_reset_req()
4784                                  */
4785                                 add_i_strmcnt = stradd->sas_instrms;
4786                                 cnt = add_i_strmcnt;
4787                                 cnt += stcb->asoc.streamincnt;
4788                                 if (cnt > 0x0000ffff) {
4789                                         /* You can't have more than 64k */
4790                                         error = EINVAL;
4791                                         goto skip_stuff;
4792                                 }
4793                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4794                                         /* More than you are allowed */
4795                                         error = EINVAL;
4796                                         goto skip_stuff;
4797                                 }
4798                         }
4799                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4800                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4801         skip_stuff:
4802                         SCTP_TCB_UNLOCK(stcb);
4803                         break;
4804                 }
4805         case SCTP_RESET_ASSOC:
4806                 {
4807                         int i;
4808                         uint32_t *value;
4809
4810                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4811                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4812                         if (stcb == NULL) {
4813                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4814                                 error = ENOENT;
4815                                 break;
4816                         }
4817                         if (stcb->asoc.reconfig_supported == 0) {
4818                                 /*
4819                                  * Peer does not support the chunk type.
4820                                  */
4821                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4822                                 error = EOPNOTSUPP;
4823                                 SCTP_TCB_UNLOCK(stcb);
4824                                 break;
4825                         }
4826                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4827                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4828                                 error = EINVAL;
4829                                 SCTP_TCB_UNLOCK(stcb);
4830                                 break;
4831                         }
4832                         if (stcb->asoc.stream_reset_outstanding) {
4833                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4834                                 error = EALREADY;
4835                                 SCTP_TCB_UNLOCK(stcb);
4836                                 break;
4837                         }
4838                         /*
4839                          * Is there any data pending in the send or sent
4840                          * queues?
4841                          */
4842                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4843                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4844                 busy_out:
4845                                 error = EBUSY;
4846                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4847                                 SCTP_TCB_UNLOCK(stcb);
4848                                 break;
4849                         }
4850                         /* Do any streams have data queued? */
4851                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4852                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4853                                         goto busy_out;
4854                                 }
4855                         }
4856                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4857                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4858                         SCTP_TCB_UNLOCK(stcb);
4859                         break;
4860                 }
4861         case SCTP_CONNECT_X:
4862                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4863                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4864                         error = EINVAL;
4865                         break;
4866                 }
4867                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4868                 break;
4869         case SCTP_CONNECT_X_DELAYED:
4870                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4871                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4872                         error = EINVAL;
4873                         break;
4874                 }
4875                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4876                 break;
4877         case SCTP_CONNECT_X_COMPLETE:
4878                 {
4879                         struct sockaddr *sa;
4880
4881                         /* FIXME MT: check correct? */
4882                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4883
4884                         /* find tcb */
4885                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4886                                 SCTP_INP_RLOCK(inp);
4887                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4888                                 if (stcb) {
4889                                         SCTP_TCB_LOCK(stcb);
4890                                 }
4891                                 SCTP_INP_RUNLOCK(inp);
4892                         } else {
4893                                 /*
4894                                  * We increment here since
4895                                  * sctp_findassociation_ep_addr() wil do a
4896                                  * decrement if it finds the stcb as long as
4897                                  * the locked tcb (last argument) is NOT a
4898                                  * TCB.. aka NULL.
4899                                  */
4900                                 SCTP_INP_INCR_REF(inp);
4901                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4902                                 if (stcb == NULL) {
4903                                         SCTP_INP_DECR_REF(inp);
4904                                 }
4905                         }
4906
4907                         if (stcb == NULL) {
4908                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4909                                 error = ENOENT;
4910                                 break;
4911                         }
4912                         if (stcb->asoc.delayed_connection == 1) {
4913                                 stcb->asoc.delayed_connection = 0;
4914                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4915                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4916                                     stcb->asoc.primary_destination,
4917                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4918                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4919                         } else {
4920                                 /*
4921                                  * already expired or did not use delayed
4922                                  * connectx
4923                                  */
4924                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4925                                 error = EALREADY;
4926                         }
4927                         SCTP_TCB_UNLOCK(stcb);
4928                         break;
4929                 }
4930         case SCTP_MAX_BURST:
4931                 {
4932                         struct sctp_assoc_value *av;
4933
4934                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4935                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4936
4937                         if (stcb) {
4938                                 stcb->asoc.max_burst = av->assoc_value;
4939                                 SCTP_TCB_UNLOCK(stcb);
4940                         } else {
4941                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4942                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4943                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4944                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4945                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4946                                         SCTP_INP_WLOCK(inp);
4947                                         inp->sctp_ep.max_burst = av->assoc_value;
4948                                         SCTP_INP_WUNLOCK(inp);
4949                                 }
4950                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4951                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4952                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4953                                         SCTP_INP_RLOCK(inp);
4954                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4955                                                 SCTP_TCB_LOCK(stcb);
4956                                                 stcb->asoc.max_burst = av->assoc_value;
4957                                                 SCTP_TCB_UNLOCK(stcb);
4958                                         }
4959                                         SCTP_INP_RUNLOCK(inp);
4960                                 }
4961                         }
4962                         break;
4963                 }
4964         case SCTP_MAXSEG:
4965                 {
4966                         struct sctp_assoc_value *av;
4967
4968                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4969                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4970
4971                         if (stcb) {
4972                                 stcb->asoc.sctp_frag_point = av->assoc_value;
4973                                 SCTP_TCB_UNLOCK(stcb);
4974                         } else {
4975                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4976                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4977                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4978                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
4979                                         SCTP_INP_WLOCK(inp);
4980                                         inp->sctp_frag_point = av->assoc_value;
4981                                         SCTP_INP_WUNLOCK(inp);
4982                                 } else {
4983                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4984                                         error = EINVAL;
4985                                 }
4986                         }
4987                         break;
4988                 }
4989         case SCTP_EVENTS:
4990                 {
4991                         struct sctp_event_subscribe *events;
4992
4993                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4994
4995                         SCTP_INP_WLOCK(inp);
4996                         if (events->sctp_data_io_event) {
4997                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4998                         } else {
4999                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5000                         }
5001
5002                         if (events->sctp_association_event) {
5003                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5004                         } else {
5005                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5006                         }
5007
5008                         if (events->sctp_address_event) {
5009                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5010                         } else {
5011                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5012                         }
5013
5014                         if (events->sctp_send_failure_event) {
5015                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5016                         } else {
5017                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5018                         }
5019
5020                         if (events->sctp_peer_error_event) {
5021                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5022                         } else {
5023                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5024                         }
5025
5026                         if (events->sctp_shutdown_event) {
5027                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5028                         } else {
5029                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5030                         }
5031
5032                         if (events->sctp_partial_delivery_event) {
5033                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5034                         } else {
5035                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5036                         }
5037
5038                         if (events->sctp_adaptation_layer_event) {
5039                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5040                         } else {
5041                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5042                         }
5043
5044                         if (events->sctp_authentication_event) {
5045                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5046                         } else {
5047                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5048                         }
5049
5050                         if (events->sctp_sender_dry_event) {
5051                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5052                         } else {
5053                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5054                         }
5055
5056                         if (events->sctp_stream_reset_event) {
5057                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5058                         } else {
5059                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5060                         }
5061
5062                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5063                                 SCTP_TCB_LOCK(stcb);
5064                                 if (events->sctp_association_event) {
5065                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5066                                 } else {
5067                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5068                                 }
5069                                 if (events->sctp_address_event) {
5070                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5071                                 } else {
5072                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5073                                 }
5074                                 if (events->sctp_send_failure_event) {
5075                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5076                                 } else {
5077                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5078                                 }
5079                                 if (events->sctp_peer_error_event) {
5080                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5081                                 } else {
5082                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5083                                 }
5084                                 if (events->sctp_shutdown_event) {
5085                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5086                                 } else {
5087                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5088                                 }
5089                                 if (events->sctp_partial_delivery_event) {
5090                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5091                                 } else {
5092                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5093                                 }
5094                                 if (events->sctp_adaptation_layer_event) {
5095                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5096                                 } else {
5097                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5098                                 }
5099                                 if (events->sctp_authentication_event) {
5100                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5101                                 } else {
5102                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5103                                 }
5104                                 if (events->sctp_sender_dry_event) {
5105                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5106                                 } else {
5107                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5108                                 }
5109                                 if (events->sctp_stream_reset_event) {
5110                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5111                                 } else {
5112                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5113                                 }
5114                                 SCTP_TCB_UNLOCK(stcb);
5115                         }
5116                         /*
5117                          * Send up the sender dry event only for 1-to-1
5118                          * style sockets.
5119                          */
5120                         if (events->sctp_sender_dry_event) {
5121                                 if (((inp->sctp_flags & (SCTP_PCB_FLAGS_TCPTYPE | SCTP_PCB_FLAGS_IN_TCPPOOL)) != 0) &&
5122                                     !SCTP_IS_LISTENING(inp)) {
5123                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5124                                         if (stcb != NULL) {
5125                                                 SCTP_TCB_LOCK(stcb);
5126                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5127                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5128                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5129                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5130                                                 }
5131                                                 SCTP_TCB_UNLOCK(stcb);
5132                                         }
5133                                 }
5134                         }
5135                         SCTP_INP_WUNLOCK(inp);
5136                         break;
5137                 }
5138         case SCTP_ADAPTATION_LAYER:
5139                 {
5140                         struct sctp_setadaptation *adap_bits;
5141
5142                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5143                         SCTP_INP_WLOCK(inp);
5144                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5145                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5146                         SCTP_INP_WUNLOCK(inp);
5147                         break;
5148                 }
5149 #ifdef SCTP_DEBUG
5150         case SCTP_SET_INITIAL_DBG_SEQ:
5151                 {
5152                         uint32_t *vvv;
5153
5154                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5155                         SCTP_INP_WLOCK(inp);
5156                         inp->sctp_ep.initial_sequence_debug = *vvv;
5157                         SCTP_INP_WUNLOCK(inp);
5158                         break;
5159                 }
5160 #endif
5161         case SCTP_DEFAULT_SEND_PARAM:
5162                 {
5163                         struct sctp_sndrcvinfo *s_info;
5164
5165                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5166                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5167
5168                         if (stcb) {
5169                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5170                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5171                                 } else {
5172                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5173                                         error = EINVAL;
5174                                 }
5175                                 SCTP_TCB_UNLOCK(stcb);
5176                         } else {
5177                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5178                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5179                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5180                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5181                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5182                                         SCTP_INP_WLOCK(inp);
5183                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5184                                         SCTP_INP_WUNLOCK(inp);
5185                                 }
5186                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5187                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5188                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5189                                         SCTP_INP_RLOCK(inp);
5190                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5191                                                 SCTP_TCB_LOCK(stcb);
5192                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5193                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5194                                                 }
5195                                                 SCTP_TCB_UNLOCK(stcb);
5196                                         }
5197                                         SCTP_INP_RUNLOCK(inp);
5198                                 }
5199                         }
5200                         break;
5201                 }
5202         case SCTP_PEER_ADDR_PARAMS:
5203                 {
5204                         struct sctp_paddrparams *paddrp;
5205                         struct sctp_nets *net;
5206                         struct sockaddr *addr;
5207 #if defined(INET) && defined(INET6)
5208                         struct sockaddr_in sin_store;
5209 #endif
5210
5211                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5212                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5213
5214 #if defined(INET) && defined(INET6)
5215                         if (paddrp->spp_address.ss_family == AF_INET6) {
5216                                 struct sockaddr_in6 *sin6;
5217
5218                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5219                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5220                                         in6_sin6_2_sin(&sin_store, sin6);
5221                                         addr = (struct sockaddr *)&sin_store;
5222                                 } else {
5223                                         addr = (struct sockaddr *)&paddrp->spp_address;
5224                                 }
5225                         } else {
5226                                 addr = (struct sockaddr *)&paddrp->spp_address;
5227                         }
5228 #else
5229                         addr = (struct sockaddr *)&paddrp->spp_address;
5230 #endif
5231                         if (stcb != NULL) {
5232                                 net = sctp_findnet(stcb, addr);
5233                         } else {
5234                                 /*
5235                                  * We increment here since
5236                                  * sctp_findassociation_ep_addr() wil do a
5237                                  * decrement if it finds the stcb as long as
5238                                  * the locked tcb (last argument) is NOT a
5239                                  * TCB.. aka NULL.
5240                                  */
5241                                 net = NULL;
5242                                 SCTP_INP_INCR_REF(inp);
5243                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5244                                     &net, NULL, NULL);
5245                                 if (stcb == NULL) {
5246                                         SCTP_INP_DECR_REF(inp);
5247                                 }
5248                         }
5249                         if ((stcb != NULL) && (net == NULL)) {
5250 #ifdef INET
5251                                 if (addr->sa_family == AF_INET) {
5252                                         struct sockaddr_in *sin;
5253
5254                                         sin = (struct sockaddr_in *)addr;
5255                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5256                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5257                                                 SCTP_TCB_UNLOCK(stcb);
5258                                                 error = EINVAL;
5259                                                 break;
5260                                         }
5261                                 } else
5262 #endif
5263 #ifdef INET6
5264                                 if (addr->sa_family == AF_INET6) {
5265                                         struct sockaddr_in6 *sin6;
5266
5267                                         sin6 = (struct sockaddr_in6 *)addr;
5268                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5269                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5270                                                 SCTP_TCB_UNLOCK(stcb);
5271                                                 error = EINVAL;
5272                                                 break;
5273                                         }
5274                                 } else
5275 #endif
5276                                 {
5277                                         error = EAFNOSUPPORT;
5278                                         SCTP_TCB_UNLOCK(stcb);
5279                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5280                                         break;
5281                                 }
5282                         }
5283                         /* sanity checks */
5284                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5285                                 if (stcb)
5286                                         SCTP_TCB_UNLOCK(stcb);
5287                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5288                                 return (EINVAL);
5289                         }
5290
5291                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5292                                 if (stcb)
5293                                         SCTP_TCB_UNLOCK(stcb);
5294                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5295                                 return (EINVAL);
5296                         }
5297                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5298                             (paddrp->spp_pathmtu > 0) &&
5299                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5300                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5301                                 if (stcb)
5302                                         SCTP_TCB_UNLOCK(stcb);
5303                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5304                                 return (EINVAL);
5305                         }
5306
5307                         if (stcb != NULL) {
5308                                 /************************TCB SPECIFIC SET ******************/
5309                                 if (net != NULL) {
5310                                         /************************NET SPECIFIC SET ******************/
5311                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5312                                                 if (((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) &&
5313                                                     ((net->dest_state & SCTP_ADDR_NOHB) == 0)) {
5314                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5315                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5316                                                 }
5317                                                 net->dest_state |= SCTP_ADDR_NOHB;
5318                                         }
5319                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5320                                                 if (paddrp->spp_hbinterval) {
5321                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5322                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5323                                                         net->heart_beat_delay = 0;
5324                                                 }
5325                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5326                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5327                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5328                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5329                                         }
5330                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5331                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5332                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5333                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5334                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5335                                                 }
5336                                         }
5337                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5338                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5339                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5340                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5341                                                 }
5342                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5343                                                 if (paddrp->spp_pathmtu > 0) {
5344                                                         net->mtu = paddrp->spp_pathmtu;
5345                                                         switch (net->ro._l_addr.sa.sa_family) {
5346 #ifdef INET
5347                                                         case AF_INET:
5348                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5349                                                                 break;
5350 #endif
5351 #ifdef INET6
5352                                                         case AF_INET6:
5353                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5354                                                                 break;
5355 #endif
5356                                                         default:
5357                                                                 break;
5358                                                         }
5359                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5360                                                                 sctp_pathmtu_adjustment(stcb, net->mtu, true);
5361                                                         }
5362                                                 }
5363                                         }
5364                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5365                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5366                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5367                                                 }
5368                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5369                                         }
5370                                         if (paddrp->spp_pathmaxrxt > 0) {
5371                                                 if (net->dest_state & SCTP_ADDR_PF) {
5372                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5373                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5374                                                         }
5375                                                 } else {
5376                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5377                                                             (net->error_count > net->pf_threshold)) {
5378                                                                 net->dest_state |= SCTP_ADDR_PF;
5379                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5380                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5381                                                                     stcb->sctp_ep, stcb, net,
5382                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5383                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5384                                                         }
5385                                                 }
5386                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5387                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5388                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5389                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5390                                                         }
5391                                                 } else {
5392                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5393                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5394                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5395                                                         }
5396                                                 }
5397                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5398                                         }
5399                                         if (paddrp->spp_flags & SPP_DSCP) {
5400                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5401                                                 net->dscp |= 0x01;
5402                                         }
5403 #ifdef INET6
5404                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5405                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5406                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5407                                                         net->flowlabel |= 0x80000000;
5408                                                 }
5409                                         }
5410 #endif
5411                                 } else {
5412                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5413                                         if (paddrp->spp_pathmaxrxt > 0) {
5414                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5415                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5416                                                         if (net->dest_state & SCTP_ADDR_PF) {
5417                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5418                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5419                                                                 }
5420                                                         } else {
5421                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5422                                                                     (net->error_count > net->pf_threshold)) {
5423                                                                         net->dest_state |= SCTP_ADDR_PF;
5424                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5425                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5426                                                                             stcb->sctp_ep, stcb, net,
5427                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5428                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5429                                                                 }
5430                                                         }
5431                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5432                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5433                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5434                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5435                                                                 }
5436                                                         } else {
5437                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5438                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5439                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5440                                                                 }
5441                                                         }
5442                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5443                                                 }
5444                                         }
5445                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5446                                                 if (paddrp->spp_hbinterval != 0) {
5447                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5448                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5449                                                         stcb->asoc.heart_beat_delay = 0;
5450                                                 }
5451                                                 /* Turn back on the timer */
5452                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5453                                                         if (paddrp->spp_hbinterval != 0) {
5454                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5455                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5456                                                                 net->heart_beat_delay = 0;
5457                                                         }
5458                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5459                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5460                                                         }
5461                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5462                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5463                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5464                                                 }
5465                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5466                                         }
5467                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5468                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5469                                                         if ((net->dest_state & SCTP_ADDR_NOHB) == 0) {
5470                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5471                                                                 if ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) {
5472                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5473                                                                             inp, stcb, net,
5474                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5475                                                                 }
5476                                                         }
5477                                                 }
5478                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5479                                         }
5480                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5481                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5482                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5483                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5484                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5485                                                         }
5486                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5487                                                         if (paddrp->spp_pathmtu > 0) {
5488                                                                 net->mtu = paddrp->spp_pathmtu;
5489                                                                 switch (net->ro._l_addr.sa.sa_family) {
5490 #ifdef INET
5491                                                                 case AF_INET:
5492                                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5493                                                                         break;
5494 #endif
5495 #ifdef INET6
5496                                                                 case AF_INET6:
5497                                                                         net->mtu += SCTP_MIN_OVERHEAD;
5498                                                                         break;
5499 #endif
5500                                                                 default:
5501                                                                         break;
5502                                                                 }
5503                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5504                                                                         sctp_pathmtu_adjustment(stcb, net->mtu, true);
5505                                                                 }
5506                                                         }
5507                                                 }
5508                                                 if (paddrp->spp_pathmtu > 0) {
5509                                                         stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5510                                                 }
5511                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5512                                         }
5513                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5514                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5515                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5516                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5517                                                         }
5518                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5519                                                 }
5520                                                 stcb->asoc.default_mtu = 0;
5521                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5522                                         }
5523                                         if (paddrp->spp_flags & SPP_DSCP) {
5524                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5525                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5526                                                         net->dscp |= 0x01;
5527                                                 }
5528                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5529                                                 stcb->asoc.default_dscp |= 0x01;
5530                                         }
5531 #ifdef INET6
5532                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5533                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5534                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5535                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5536                                                                 net->flowlabel |= 0x80000000;
5537                                                         }
5538                                                 }
5539                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5540                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5541                                         }
5542 #endif
5543                                 }
5544                                 SCTP_TCB_UNLOCK(stcb);
5545                         } else {
5546                                 /************************NO TCB, SET TO default stuff ******************/
5547                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5548                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5549                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5550                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5551                                         SCTP_INP_WLOCK(inp);
5552                                         /*
5553                                          * For the TOS/FLOWLABEL stuff you
5554                                          * set it with the options on the
5555                                          * socket
5556                                          */
5557                                         if (paddrp->spp_pathmaxrxt > 0) {
5558                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5559                                         }
5560
5561                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5562                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5563                                         else if (paddrp->spp_hbinterval != 0) {
5564                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5565                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5566                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5567                                         }
5568
5569                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5570                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5571                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5572                                                 } else if (paddrp->spp_hbinterval) {
5573                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5574                                                 }
5575                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5576                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5577                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5578                                         }
5579                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5580                                                 inp->sctp_ep.default_mtu = 0;
5581                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5582                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5583                                                 if (paddrp->spp_pathmtu > 0) {
5584                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5585                                                 }
5586                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5587                                         }
5588                                         if (paddrp->spp_flags & SPP_DSCP) {
5589                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5590                                                 inp->sctp_ep.default_dscp |= 0x01;
5591                                         }
5592 #ifdef INET6
5593                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5594                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5595                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5596                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5597                                                 }
5598                                         }
5599 #endif
5600                                         SCTP_INP_WUNLOCK(inp);
5601                                 } else {
5602                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5603                                         error = EINVAL;
5604                                 }
5605                         }
5606                         break;
5607                 }
5608         case SCTP_RTOINFO:
5609                 {
5610                         struct sctp_rtoinfo *srto;
5611                         uint32_t new_init, new_min, new_max;
5612
5613                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5614                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5615
5616                         if (stcb) {
5617                                 if (srto->srto_initial)
5618                                         new_init = srto->srto_initial;
5619                                 else
5620                                         new_init = stcb->asoc.initial_rto;
5621                                 if (srto->srto_max)
5622                                         new_max = srto->srto_max;
5623                                 else
5624                                         new_max = stcb->asoc.maxrto;
5625                                 if (srto->srto_min)
5626                                         new_min = srto->srto_min;
5627                                 else
5628                                         new_min = stcb->asoc.minrto;
5629                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5630                                         stcb->asoc.initial_rto = new_init;
5631                                         stcb->asoc.maxrto = new_max;
5632                                         stcb->asoc.minrto = new_min;
5633                                 } else {
5634                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5635                                         error = EINVAL;
5636                                 }
5637                                 SCTP_TCB_UNLOCK(stcb);
5638                         } else {
5639                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5640                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5641                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5642                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5643                                         SCTP_INP_WLOCK(inp);
5644                                         if (srto->srto_initial)
5645                                                 new_init = srto->srto_initial;
5646                                         else
5647                                                 new_init = inp->sctp_ep.initial_rto;
5648                                         if (srto->srto_max)
5649                                                 new_max = srto->srto_max;
5650                                         else
5651                                                 new_max = inp->sctp_ep.sctp_maxrto;
5652                                         if (srto->srto_min)
5653                                                 new_min = srto->srto_min;
5654                                         else
5655                                                 new_min = inp->sctp_ep.sctp_minrto;
5656                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5657                                                 inp->sctp_ep.initial_rto = new_init;
5658                                                 inp->sctp_ep.sctp_maxrto = new_max;
5659                                                 inp->sctp_ep.sctp_minrto = new_min;
5660                                         } else {
5661                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5662                                                 error = EINVAL;
5663                                         }
5664                                         SCTP_INP_WUNLOCK(inp);
5665                                 } else {
5666                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5667                                         error = EINVAL;
5668                                 }
5669                         }
5670                         break;
5671                 }
5672         case SCTP_ASSOCINFO:
5673                 {
5674                         struct sctp_assocparams *sasoc;
5675
5676                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5677                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5678                         if (sasoc->sasoc_cookie_life > 0) {
5679                                 /* boundary check the cookie life */
5680                                 if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
5681                                         sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
5682                                 }
5683                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5684                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5685                                 }
5686                         }
5687                         if (stcb) {
5688                                 if (sasoc->sasoc_asocmaxrxt > 0) {
5689                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5690                                 }
5691                                 if (sasoc->sasoc_cookie_life > 0) {
5692                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5693                                 }
5694                                 SCTP_TCB_UNLOCK(stcb);
5695                         } else {
5696                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5697                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5698                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5699                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5700                                         SCTP_INP_WLOCK(inp);
5701                                         if (sasoc->sasoc_asocmaxrxt > 0) {
5702                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5703                                         }
5704                                         if (sasoc->sasoc_cookie_life > 0) {
5705                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5706                                         }
5707                                         SCTP_INP_WUNLOCK(inp);
5708                                 } else {
5709                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5710                                         error = EINVAL;
5711                                 }
5712                         }
5713                         break;
5714                 }
5715         case SCTP_INITMSG:
5716                 {
5717                         struct sctp_initmsg *sinit;
5718
5719                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5720                         SCTP_INP_WLOCK(inp);
5721                         if (sinit->sinit_num_ostreams)
5722                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5723
5724                         if (sinit->sinit_max_instreams)
5725                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5726
5727                         if (sinit->sinit_max_attempts)
5728                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5729
5730                         if (sinit->sinit_max_init_timeo)
5731                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5732                         SCTP_INP_WUNLOCK(inp);
5733                         break;
5734                 }
5735         case SCTP_PRIMARY_ADDR:
5736                 {
5737                         struct sctp_setprim *spa;
5738                         struct sctp_nets *net;
5739                         struct sockaddr *addr;
5740 #if defined(INET) && defined(INET6)
5741                         struct sockaddr_in sin_store;
5742 #endif
5743
5744                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5745                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5746
5747 #if defined(INET) && defined(INET6)
5748                         if (spa->ssp_addr.ss_family == AF_INET6) {
5749                                 struct sockaddr_in6 *sin6;
5750
5751                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5752                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5753                                         in6_sin6_2_sin(&sin_store, sin6);
5754                                         addr = (struct sockaddr *)&sin_store;
5755                                 } else {
5756                                         addr = (struct sockaddr *)&spa->ssp_addr;
5757                                 }
5758                         } else {
5759                                 addr = (struct sockaddr *)&spa->ssp_addr;
5760                         }
5761 #else
5762                         addr = (struct sockaddr *)&spa->ssp_addr;
5763 #endif
5764                         if (stcb != NULL) {
5765                                 net = sctp_findnet(stcb, addr);
5766                         } else {
5767                                 /*
5768                                  * We increment here since
5769                                  * sctp_findassociation_ep_addr() wil do a
5770                                  * decrement if it finds the stcb as long as
5771                                  * the locked tcb (last argument) is NOT a
5772                                  * TCB.. aka NULL.
5773                                  */
5774                                 net = NULL;
5775                                 SCTP_INP_INCR_REF(inp);
5776                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5777                                     &net, NULL, NULL);
5778                                 if (stcb == NULL) {
5779                                         SCTP_INP_DECR_REF(inp);
5780                                 }
5781                         }
5782
5783                         if ((stcb != NULL) && (net != NULL)) {
5784                                 if (net != stcb->asoc.primary_destination) {
5785                                         if ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) {
5786                                                 /* Ok we need to set it */
5787                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5788                                                         if ((stcb->asoc.alternate) &&
5789                                                             ((net->dest_state & SCTP_ADDR_PF) == 0) &&
5790                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5791                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5792                                                                 stcb->asoc.alternate = NULL;
5793                                                         }
5794                                                 } else {
5795                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5796                                                         error = EINVAL;
5797                                                 }
5798                                         } else {
5799                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5800                                                 error = EINVAL;
5801                                         }
5802                                 }
5803                         } else {
5804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5805                                 error = EINVAL;
5806                         }
5807                         if (stcb != NULL) {
5808                                 SCTP_TCB_UNLOCK(stcb);
5809                         }
5810                         break;
5811                 }
5812         case SCTP_SET_DYNAMIC_PRIMARY:
5813                 {
5814                         union sctp_sockstore *ss;
5815
5816                         error = priv_check(curthread,
5817                             PRIV_NETINET_RESERVEDPORT);
5818                         if (error)
5819                                 break;
5820
5821                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5822                         /* SUPER USER CHECK? */
5823                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5824                         break;
5825                 }
5826         case SCTP_SET_PEER_PRIMARY_ADDR:
5827                 {
5828                         struct sctp_setpeerprim *sspp;
5829                         struct sockaddr *addr;
5830 #if defined(INET) && defined(INET6)
5831                         struct sockaddr_in sin_store;
5832 #endif
5833
5834                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5835                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5836                         if (stcb != NULL) {
5837                                 struct sctp_ifa *ifa;
5838
5839 #if defined(INET) && defined(INET6)
5840                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5841                                         struct sockaddr_in6 *sin6;
5842
5843                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5844                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5845                                                 in6_sin6_2_sin(&sin_store, sin6);
5846                                                 addr = (struct sockaddr *)&sin_store;
5847                                         } else {
5848                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5849                                         }
5850                                 } else {
5851                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5852                                 }
5853 #else
5854                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5855 #endif
5856                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5857                                 if (ifa == NULL) {
5858                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5859                                         error = EINVAL;
5860                                         goto out_of_it;
5861                                 }
5862                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5863                                         /*
5864                                          * Must validate the ifa found is in
5865                                          * our ep
5866                                          */
5867                                         struct sctp_laddr *laddr;
5868                                         int found = 0;
5869
5870                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5871                                                 if (laddr->ifa == NULL) {
5872                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5873                                                             __func__);
5874                                                         continue;
5875                                                 }
5876                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5877                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5878                                                         continue;
5879                                                 }
5880                                                 if (laddr->ifa == ifa) {
5881                                                         found = 1;
5882                                                         break;
5883                                                 }
5884                                         }
5885                                         if (!found) {
5886                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5887                                                 error = EINVAL;
5888                                                 goto out_of_it;
5889                                         }
5890                                 } else {
5891                                         switch (addr->sa_family) {
5892 #ifdef INET
5893                                         case AF_INET:
5894                                                 {
5895                                                         struct sockaddr_in *sin;
5896
5897                                                         sin = (struct sockaddr_in *)addr;
5898                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5899                                                             &sin->sin_addr) != 0) {
5900                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5901                                                                 error = EINVAL;
5902                                                                 goto out_of_it;
5903                                                         }
5904                                                         break;
5905                                                 }
5906 #endif
5907 #ifdef INET6
5908                                         case AF_INET6:
5909                                                 {
5910                                                         struct sockaddr_in6 *sin6;
5911
5912                                                         sin6 = (struct sockaddr_in6 *)addr;
5913                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5914                                                             &sin6->sin6_addr) != 0) {
5915                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5916                                                                 error = EINVAL;
5917                                                                 goto out_of_it;
5918                                                         }
5919                                                         break;
5920                                                 }
5921 #endif
5922                                         default:
5923                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5924                                                 error = EINVAL;
5925                                                 goto out_of_it;
5926                                         }
5927                                 }
5928                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5929                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5930                                         error = EINVAL;
5931                                 }
5932                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5933                 out_of_it:
5934                                 SCTP_TCB_UNLOCK(stcb);
5935                         } else {
5936                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5937                                 error = EINVAL;
5938                         }
5939                         break;
5940                 }
5941         case SCTP_BINDX_ADD_ADDR:
5942                 {
5943                         struct sockaddr *sa;
5944                         struct thread *td;
5945
5946                         td = (struct thread *)p;
5947                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5948 #ifdef INET
5949                         if (sa->sa_family == AF_INET) {
5950                                 if (optsize < sizeof(struct sockaddr_in)) {
5951                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5952                                         error = EINVAL;
5953                                         break;
5954                                 }
5955                                 if (td != NULL &&
5956                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
5957                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5958                                         break;
5959                                 }
5960                         } else
5961 #endif
5962 #ifdef INET6
5963                         if (sa->sa_family == AF_INET6) {
5964                                 if (optsize < sizeof(struct sockaddr_in6)) {
5965                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5966                                         error = EINVAL;
5967                                         break;
5968                                 }
5969                                 if (td != NULL &&
5970                                     (error = prison_local_ip6(td->td_ucred,
5971                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
5972                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5973                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5974                                         break;
5975                                 }
5976                         } else
5977 #endif
5978                         {
5979                                 error = EAFNOSUPPORT;
5980                                 break;
5981                         }
5982                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
5983                         break;
5984                 }
5985         case SCTP_BINDX_REM_ADDR:
5986                 {
5987                         struct sockaddr *sa;
5988                         struct thread *td;
5989
5990                         td = (struct thread *)p;
5991
5992                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5993 #ifdef INET
5994                         if (sa->sa_family == AF_INET) {
5995                                 if (optsize < sizeof(struct sockaddr_in)) {
5996                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5997                                         error = EINVAL;
5998                                         break;
5999                                 }
6000                                 if (td != NULL &&
6001                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6002                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6003                                         break;
6004                                 }
6005                         } else
6006 #endif
6007 #ifdef INET6
6008                         if (sa->sa_family == AF_INET6) {
6009                                 if (optsize < sizeof(struct sockaddr_in6)) {
6010                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6011                                         error = EINVAL;
6012                                         break;
6013                                 }
6014                                 if (td != NULL &&
6015                                     (error = prison_local_ip6(td->td_ucred,
6016                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6017                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6018                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6019                                         break;
6020                                 }
6021                         } else
6022 #endif
6023                         {
6024                                 error = EAFNOSUPPORT;
6025                                 break;
6026                         }
6027                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6028                         break;
6029                 }
6030         case SCTP_EVENT:
6031                 {
6032                         struct sctp_event *event;
6033                         uint32_t event_type;
6034
6035                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6036                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6037                         switch (event->se_type) {
6038                         case SCTP_ASSOC_CHANGE:
6039                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6040                                 break;
6041                         case SCTP_PEER_ADDR_CHANGE:
6042                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6043                                 break;
6044                         case SCTP_REMOTE_ERROR:
6045                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6046                                 break;
6047                         case SCTP_SEND_FAILED:
6048                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6049                                 break;
6050                         case SCTP_SHUTDOWN_EVENT:
6051                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6052                                 break;
6053                         case SCTP_ADAPTATION_INDICATION:
6054                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6055                                 break;
6056                         case SCTP_PARTIAL_DELIVERY_EVENT:
6057                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6058                                 break;
6059                         case SCTP_AUTHENTICATION_EVENT:
6060                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6061                                 break;
6062                         case SCTP_STREAM_RESET_EVENT:
6063                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6064                                 break;
6065                         case SCTP_SENDER_DRY_EVENT:
6066                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6067                                 break;
6068                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6069                                 event_type = 0;
6070                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6071                                 error = ENOTSUP;
6072                                 break;
6073                         case SCTP_ASSOC_RESET_EVENT:
6074                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6075                                 break;
6076                         case SCTP_STREAM_CHANGE_EVENT:
6077                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6078                                 break;
6079                         case SCTP_SEND_FAILED_EVENT:
6080                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6081                                 break;
6082                         default:
6083                                 event_type = 0;
6084                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6085                                 error = EINVAL;
6086                                 break;
6087                         }
6088                         if (event_type > 0) {
6089                                 if (stcb) {
6090                                         if (event->se_on) {
6091                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6092                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6093                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6094                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6095                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6096                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6097                                                         }
6098                                                 }
6099                                         } else {
6100                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6101                                         }
6102                                         SCTP_TCB_UNLOCK(stcb);
6103                                 } else {
6104                                         /*
6105                                          * We don't want to send up a storm
6106                                          * of events, so return an error for
6107                                          * sender dry events
6108                                          */
6109                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6110                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6111                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6112                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6113                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6114                                                 error = ENOTSUP;
6115                                                 break;
6116                                         }
6117                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6118                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6119                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6120                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6121                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6122                                                 SCTP_INP_WLOCK(inp);
6123                                                 if (event->se_on) {
6124                                                         sctp_feature_on(inp, event_type);
6125                                                 } else {
6126                                                         sctp_feature_off(inp, event_type);
6127                                                 }
6128                                                 SCTP_INP_WUNLOCK(inp);
6129                                         }
6130                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6131                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6132                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6133                                                 SCTP_INP_RLOCK(inp);
6134                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6135                                                         SCTP_TCB_LOCK(stcb);
6136                                                         if (event->se_on) {
6137                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6138                                                         } else {
6139                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6140                                                         }
6141                                                         SCTP_TCB_UNLOCK(stcb);
6142                                                 }
6143                                                 SCTP_INP_RUNLOCK(inp);
6144                                         }
6145                                 }
6146                         } else {
6147                                 if (stcb) {
6148                                         SCTP_TCB_UNLOCK(stcb);
6149                                 }
6150                         }
6151                         break;
6152                 }
6153         case SCTP_RECVRCVINFO:
6154                 {
6155                         int *onoff;
6156
6157                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6158                         SCTP_INP_WLOCK(inp);
6159                         if (*onoff != 0) {
6160                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6161                         } else {
6162                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6163                         }
6164                         SCTP_INP_WUNLOCK(inp);
6165                         break;
6166                 }
6167         case SCTP_RECVNXTINFO:
6168                 {
6169                         int *onoff;
6170
6171                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6172                         SCTP_INP_WLOCK(inp);
6173                         if (*onoff != 0) {
6174                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6175                         } else {
6176                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6177                         }
6178                         SCTP_INP_WUNLOCK(inp);
6179                         break;
6180                 }
6181         case SCTP_DEFAULT_SNDINFO:
6182                 {
6183                         struct sctp_sndinfo *info;
6184                         uint16_t policy;
6185
6186                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6187                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6188
6189                         if (stcb) {
6190                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6191                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6192                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6193                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6194                                         stcb->asoc.def_send.sinfo_flags |= policy;
6195                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6196                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6197                                 } else {
6198                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6199                                         error = EINVAL;
6200                                 }
6201                                 SCTP_TCB_UNLOCK(stcb);
6202                         } else {
6203                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6204                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6205                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6206                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6207                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6208                                         SCTP_INP_WLOCK(inp);
6209                                         inp->def_send.sinfo_stream = info->snd_sid;
6210                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6211                                         inp->def_send.sinfo_flags = info->snd_flags;
6212                                         inp->def_send.sinfo_flags |= policy;
6213                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6214                                         inp->def_send.sinfo_context = info->snd_context;
6215                                         SCTP_INP_WUNLOCK(inp);
6216                                 }
6217                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6218                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6219                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6220                                         SCTP_INP_RLOCK(inp);
6221                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6222                                                 SCTP_TCB_LOCK(stcb);
6223                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6224                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6225                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6226                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6227                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6228                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6229                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6230                                                 }
6231                                                 SCTP_TCB_UNLOCK(stcb);
6232                                         }
6233                                         SCTP_INP_RUNLOCK(inp);
6234                                 }
6235                         }
6236                         break;
6237                 }
6238         case SCTP_DEFAULT_PRINFO:
6239                 {
6240                         struct sctp_default_prinfo *info;
6241
6242                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6243                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6244
6245                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6246                                 if (stcb) {
6247                                         SCTP_TCB_UNLOCK(stcb);
6248                                 }
6249                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6250                                 error = EINVAL;
6251                                 break;
6252                         }
6253                         if (stcb) {
6254                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6255                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6256                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6257                                 SCTP_TCB_UNLOCK(stcb);
6258                         } else {
6259                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6260                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6261                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6262                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6263                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6264                                         SCTP_INP_WLOCK(inp);
6265                                         inp->def_send.sinfo_flags &= 0xfff0;
6266                                         inp->def_send.sinfo_flags |= info->pr_policy;
6267                                         inp->def_send.sinfo_timetolive = info->pr_value;
6268                                         SCTP_INP_WUNLOCK(inp);
6269                                 }
6270                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6271                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6272                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6273                                         SCTP_INP_RLOCK(inp);
6274                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6275                                                 SCTP_TCB_LOCK(stcb);
6276                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6277                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6278                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6279                                                 SCTP_TCB_UNLOCK(stcb);
6280                                         }
6281                                         SCTP_INP_RUNLOCK(inp);
6282                                 }
6283                         }
6284                         break;
6285                 }
6286         case SCTP_PEER_ADDR_THLDS:
6287                 /* Applies to the specific association */
6288                 {
6289                         struct sctp_paddrthlds *thlds;
6290                         struct sctp_nets *net;
6291                         struct sockaddr *addr;
6292 #if defined(INET) && defined(INET6)
6293                         struct sockaddr_in sin_store;
6294 #endif
6295
6296                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6297                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6298
6299 #if defined(INET) && defined(INET6)
6300                         if (thlds->spt_address.ss_family == AF_INET6) {
6301                                 struct sockaddr_in6 *sin6;
6302
6303                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6304                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6305                                         in6_sin6_2_sin(&sin_store, sin6);
6306                                         addr = (struct sockaddr *)&sin_store;
6307                                 } else {
6308                                         addr = (struct sockaddr *)&thlds->spt_address;
6309                                 }
6310                         } else {
6311                                 addr = (struct sockaddr *)&thlds->spt_address;
6312                         }
6313 #else
6314                         addr = (struct sockaddr *)&thlds->spt_address;
6315 #endif
6316                         if (stcb != NULL) {
6317                                 net = sctp_findnet(stcb, addr);
6318                         } else {
6319                                 /*
6320                                  * We increment here since
6321                                  * sctp_findassociation_ep_addr() wil do a
6322                                  * decrement if it finds the stcb as long as
6323                                  * the locked tcb (last argument) is NOT a
6324                                  * TCB.. aka NULL.
6325                                  */
6326                                 net = NULL;
6327                                 SCTP_INP_INCR_REF(inp);
6328                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6329                                     &net, NULL, NULL);
6330                                 if (stcb == NULL) {
6331                                         SCTP_INP_DECR_REF(inp);
6332                                 }
6333                         }
6334                         if ((stcb != NULL) && (net == NULL)) {
6335 #ifdef INET
6336                                 if (addr->sa_family == AF_INET) {
6337                                         struct sockaddr_in *sin;
6338
6339                                         sin = (struct sockaddr_in *)addr;
6340                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6341                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6342                                                 SCTP_TCB_UNLOCK(stcb);
6343                                                 error = EINVAL;
6344                                                 break;
6345                                         }
6346                                 } else
6347 #endif
6348 #ifdef INET6
6349                                 if (addr->sa_family == AF_INET6) {
6350                                         struct sockaddr_in6 *sin6;
6351
6352                                         sin6 = (struct sockaddr_in6 *)addr;
6353                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6354                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6355                                                 SCTP_TCB_UNLOCK(stcb);
6356                                                 error = EINVAL;
6357                                                 break;
6358                                         }
6359                                 } else
6360 #endif
6361                                 {
6362                                         error = EAFNOSUPPORT;
6363                                         SCTP_TCB_UNLOCK(stcb);
6364                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6365                                         break;
6366                                 }
6367                         }
6368                         if (thlds->spt_pathcpthld != 0xffff) {
6369                                 if (stcb != NULL) {
6370                                         SCTP_TCB_UNLOCK(stcb);
6371                                 }
6372                                 error = EINVAL;
6373                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6374                                 break;
6375                         }
6376                         if (stcb != NULL) {
6377                                 if (net != NULL) {
6378                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6379                                         net->pf_threshold = thlds->spt_pathpfthld;
6380                                         if (net->dest_state & SCTP_ADDR_PF) {
6381                                                 if ((net->error_count > net->failure_threshold) ||
6382                                                     (net->error_count <= net->pf_threshold)) {
6383                                                         net->dest_state &= ~SCTP_ADDR_PF;
6384                                                 }
6385                                         } else {
6386                                                 if ((net->error_count > net->pf_threshold) &&
6387                                                     (net->error_count <= net->failure_threshold)) {
6388                                                         net->dest_state |= SCTP_ADDR_PF;
6389                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6390                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6391                                                             stcb->sctp_ep, stcb, net,
6392                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6393                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6394                                                 }
6395                                         }
6396                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6397                                                 if (net->error_count > net->failure_threshold) {
6398                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6399                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6400                                                 }
6401                                         } else {
6402                                                 if (net->error_count <= net->failure_threshold) {
6403                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6404                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6405                                                 }
6406                                         }
6407                                 } else {
6408                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6409                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6410                                                 net->pf_threshold = thlds->spt_pathpfthld;
6411                                                 if (net->dest_state & SCTP_ADDR_PF) {
6412                                                         if ((net->error_count > net->failure_threshold) ||
6413                                                             (net->error_count <= net->pf_threshold)) {
6414                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6415                                                         }
6416                                                 } else {
6417                                                         if ((net->error_count > net->pf_threshold) &&
6418                                                             (net->error_count <= net->failure_threshold)) {
6419                                                                 net->dest_state |= SCTP_ADDR_PF;
6420                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6421                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6422                                                                     stcb->sctp_ep, stcb, net,
6423                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6424                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6425                                                         }
6426                                                 }
6427                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6428                                                         if (net->error_count > net->failure_threshold) {
6429                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6430                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6431                                                         }
6432                                                 } else {
6433                                                         if (net->error_count <= net->failure_threshold) {
6434                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6435                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6436                                                         }
6437                                                 }
6438                                         }
6439                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6440                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6441                                 }
6442                                 SCTP_TCB_UNLOCK(stcb);
6443                         } else {
6444                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6445                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6446                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6447                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6448                                         SCTP_INP_WLOCK(inp);
6449                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6450                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6451                                         SCTP_INP_WUNLOCK(inp);
6452                                 } else {
6453                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6454                                         error = EINVAL;
6455                                 }
6456                         }
6457                         break;
6458                 }
6459         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6460                 {
6461                         struct sctp_udpencaps *encaps;
6462                         struct sctp_nets *net;
6463                         struct sockaddr *addr;
6464 #if defined(INET) && defined(INET6)
6465                         struct sockaddr_in sin_store;
6466 #endif
6467
6468                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6469                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6470
6471 #if defined(INET) && defined(INET6)
6472                         if (encaps->sue_address.ss_family == AF_INET6) {
6473                                 struct sockaddr_in6 *sin6;
6474
6475                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6476                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6477                                         in6_sin6_2_sin(&sin_store, sin6);
6478                                         addr = (struct sockaddr *)&sin_store;
6479                                 } else {
6480                                         addr = (struct sockaddr *)&encaps->sue_address;
6481                                 }
6482                         } else {
6483                                 addr = (struct sockaddr *)&encaps->sue_address;
6484                         }
6485 #else
6486                         addr = (struct sockaddr *)&encaps->sue_address;
6487 #endif
6488                         if (stcb != NULL) {
6489                                 net = sctp_findnet(stcb, addr);
6490                         } else {
6491                                 /*
6492                                  * We increment here since
6493                                  * sctp_findassociation_ep_addr() wil do a
6494                                  * decrement if it finds the stcb as long as
6495                                  * the locked tcb (last argument) is NOT a
6496                                  * TCB.. aka NULL.
6497                                  */
6498                                 net = NULL;
6499                                 SCTP_INP_INCR_REF(inp);
6500                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6501                                 if (stcb == NULL) {
6502                                         SCTP_INP_DECR_REF(inp);
6503                                 }
6504                         }
6505                         if ((stcb != NULL) && (net == NULL)) {
6506 #ifdef INET
6507                                 if (addr->sa_family == AF_INET) {
6508                                         struct sockaddr_in *sin;
6509
6510                                         sin = (struct sockaddr_in *)addr;
6511                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6512                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6513                                                 SCTP_TCB_UNLOCK(stcb);
6514                                                 error = EINVAL;
6515                                                 break;
6516                                         }
6517                                 } else
6518 #endif
6519 #ifdef INET6
6520                                 if (addr->sa_family == AF_INET6) {
6521                                         struct sockaddr_in6 *sin6;
6522
6523                                         sin6 = (struct sockaddr_in6 *)addr;
6524                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6525                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6526                                                 SCTP_TCB_UNLOCK(stcb);
6527                                                 error = EINVAL;
6528                                                 break;
6529                                         }
6530                                 } else
6531 #endif
6532                                 {
6533                                         error = EAFNOSUPPORT;
6534                                         SCTP_TCB_UNLOCK(stcb);
6535                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6536                                         break;
6537                                 }
6538                         }
6539
6540                         if (stcb != NULL) {
6541                                 if (net != NULL) {
6542                                         net->port = encaps->sue_port;
6543                                 } else {
6544                                         stcb->asoc.port = encaps->sue_port;
6545                                 }
6546                                 SCTP_TCB_UNLOCK(stcb);
6547                         } else {
6548                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6549                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6550                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6551                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6552                                         SCTP_INP_WLOCK(inp);
6553                                         inp->sctp_ep.port = encaps->sue_port;
6554                                         SCTP_INP_WUNLOCK(inp);
6555                                 } else {
6556                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6557                                         error = EINVAL;
6558                                 }
6559                         }
6560                         break;
6561                 }
6562         case SCTP_ECN_SUPPORTED:
6563                 {
6564                         struct sctp_assoc_value *av;
6565
6566                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6567                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6568
6569                         if (stcb) {
6570                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6571                                 error = EINVAL;
6572                                 SCTP_TCB_UNLOCK(stcb);
6573                         } else {
6574                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6575                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6576                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6577                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6578                                         SCTP_INP_WLOCK(inp);
6579                                         if (av->assoc_value == 0) {
6580                                                 inp->ecn_supported = 0;
6581                                         } else {
6582                                                 inp->ecn_supported = 1;
6583                                         }
6584                                         SCTP_INP_WUNLOCK(inp);
6585                                 } else {
6586                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6587                                         error = EINVAL;
6588                                 }
6589                         }
6590                         break;
6591                 }
6592         case SCTP_PR_SUPPORTED:
6593                 {
6594                         struct sctp_assoc_value *av;
6595
6596                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6597                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6598
6599                         if (stcb) {
6600                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6601                                 error = EINVAL;
6602                                 SCTP_TCB_UNLOCK(stcb);
6603                         } else {
6604                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6605                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6606                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6607                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6608                                         SCTP_INP_WLOCK(inp);
6609                                         if (av->assoc_value == 0) {
6610                                                 inp->prsctp_supported = 0;
6611                                         } else {
6612                                                 inp->prsctp_supported = 1;
6613                                         }
6614                                         SCTP_INP_WUNLOCK(inp);
6615                                 } else {
6616                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6617                                         error = EINVAL;
6618                                 }
6619                         }
6620                         break;
6621                 }
6622         case SCTP_AUTH_SUPPORTED:
6623                 {
6624                         struct sctp_assoc_value *av;
6625
6626                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6627                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6628
6629                         if (stcb) {
6630                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6631                                 error = EINVAL;
6632                                 SCTP_TCB_UNLOCK(stcb);
6633                         } else {
6634                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6635                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6636                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6637                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6638                                         if ((av->assoc_value == 0) &&
6639                                             (inp->asconf_supported == 1)) {
6640                                                 /*
6641                                                  * AUTH is required for
6642                                                  * ASCONF
6643                                                  */
6644                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6645                                                 error = EINVAL;
6646                                         } else {
6647                                                 SCTP_INP_WLOCK(inp);
6648                                                 if (av->assoc_value == 0) {
6649                                                         inp->auth_supported = 0;
6650                                                 } else {
6651                                                         inp->auth_supported = 1;
6652                                                 }
6653                                                 SCTP_INP_WUNLOCK(inp);
6654                                         }
6655                                 } else {
6656                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6657                                         error = EINVAL;
6658                                 }
6659                         }
6660                         break;
6661                 }
6662         case SCTP_ASCONF_SUPPORTED:
6663                 {
6664                         struct sctp_assoc_value *av;
6665
6666                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6667                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6668
6669                         if (stcb) {
6670                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6671                                 error = EINVAL;
6672                                 SCTP_TCB_UNLOCK(stcb);
6673                         } else {
6674                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6675                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6676                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6677                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6678                                         if ((av->assoc_value != 0) &&
6679                                             (inp->auth_supported == 0)) {
6680                                                 /*
6681                                                  * AUTH is required for
6682                                                  * ASCONF
6683                                                  */
6684                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6685                                                 error = EINVAL;
6686                                         } else {
6687                                                 SCTP_INP_WLOCK(inp);
6688                                                 if (av->assoc_value == 0) {
6689                                                         inp->asconf_supported = 0;
6690                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6691                                                             inp->sctp_ep.local_auth_chunks);
6692                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6693                                                             inp->sctp_ep.local_auth_chunks);
6694                                                 } else {
6695                                                         inp->asconf_supported = 1;
6696                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6697                                                             inp->sctp_ep.local_auth_chunks);
6698                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6699                                                             inp->sctp_ep.local_auth_chunks);
6700                                                 }
6701                                                 SCTP_INP_WUNLOCK(inp);
6702                                         }
6703                                 } else {
6704                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6705                                         error = EINVAL;
6706                                 }
6707                         }
6708                         break;
6709                 }
6710         case SCTP_RECONFIG_SUPPORTED:
6711                 {
6712                         struct sctp_assoc_value *av;
6713
6714                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6715                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6716
6717                         if (stcb) {
6718                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6719                                 error = EINVAL;
6720                                 SCTP_TCB_UNLOCK(stcb);
6721                         } else {
6722                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6723                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6724                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6725                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6726                                         SCTP_INP_WLOCK(inp);
6727                                         if (av->assoc_value == 0) {
6728                                                 inp->reconfig_supported = 0;
6729                                         } else {
6730                                                 inp->reconfig_supported = 1;
6731                                         }
6732                                         SCTP_INP_WUNLOCK(inp);
6733                                 } else {
6734                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6735                                         error = EINVAL;
6736                                 }
6737                         }
6738                         break;
6739                 }
6740         case SCTP_NRSACK_SUPPORTED:
6741                 {
6742                         struct sctp_assoc_value *av;
6743
6744                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6745                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6746
6747                         if (stcb) {
6748                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6749                                 error = EINVAL;
6750                                 SCTP_TCB_UNLOCK(stcb);
6751                         } else {
6752                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6753                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6754                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6755                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6756                                         SCTP_INP_WLOCK(inp);
6757                                         if (av->assoc_value == 0) {
6758                                                 inp->nrsack_supported = 0;
6759                                         } else {
6760                                                 inp->nrsack_supported = 1;
6761                                         }
6762                                         SCTP_INP_WUNLOCK(inp);
6763                                 } else {
6764                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6765                                         error = EINVAL;
6766                                 }
6767                         }
6768                         break;
6769                 }
6770         case SCTP_PKTDROP_SUPPORTED:
6771                 {
6772                         struct sctp_assoc_value *av;
6773
6774                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6775                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6776
6777                         if (stcb) {
6778                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6779                                 error = EINVAL;
6780                                 SCTP_TCB_UNLOCK(stcb);
6781                         } else {
6782                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6783                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6784                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6785                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6786                                         SCTP_INP_WLOCK(inp);
6787                                         if (av->assoc_value == 0) {
6788                                                 inp->pktdrop_supported = 0;
6789                                         } else {
6790                                                 inp->pktdrop_supported = 1;
6791                                         }
6792                                         SCTP_INP_WUNLOCK(inp);
6793                                 } else {
6794                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6795                                         error = EINVAL;
6796                                 }
6797                         }
6798                         break;
6799                 }
6800         case SCTP_MAX_CWND:
6801                 {
6802                         struct sctp_assoc_value *av;
6803                         struct sctp_nets *net;
6804
6805                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6806                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6807
6808                         if (stcb) {
6809                                 stcb->asoc.max_cwnd = av->assoc_value;
6810                                 if (stcb->asoc.max_cwnd > 0) {
6811                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6812                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6813                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6814                                                         net->cwnd = stcb->asoc.max_cwnd;
6815                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6816                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6817                                                         }
6818                                                 }
6819                                         }
6820                                 }
6821                                 SCTP_TCB_UNLOCK(stcb);
6822                         } else {
6823                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6824                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6825                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6826                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6827                                         SCTP_INP_WLOCK(inp);
6828                                         inp->max_cwnd = av->assoc_value;
6829                                         SCTP_INP_WUNLOCK(inp);
6830                                 } else {
6831                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6832                                         error = EINVAL;
6833                                 }
6834                         }
6835                         break;
6836                 }
6837         case SCTP_ACCEPT_ZERO_CHECKSUM:
6838                 {
6839                         uint32_t *value;
6840
6841                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
6842                         if ((*value == SCTP_EDMID_NONE) ||
6843                             (*value == SCTP_EDMID_LOWER_LAYER_DTLS)) {
6844                                 SCTP_INP_WLOCK(inp);
6845                                 inp->rcv_edmid = *value;
6846                                 SCTP_INP_WUNLOCK(inp);
6847                         } else {
6848                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6849                                 error = EINVAL;
6850                         }
6851                         break;
6852                 }
6853
6854         default:
6855                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6856                 error = ENOPROTOOPT;
6857                 break;
6858         }                       /* end switch (opt) */
6859         return (error);
6860 }
6861
6862 int
6863 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6864 {
6865         struct epoch_tracker et;
6866         struct sctp_inpcb *inp;
6867         void *optval = NULL;
6868         void *p;
6869         size_t optsize = 0;
6870         int error = 0;
6871
6872         if ((sopt->sopt_level == SOL_SOCKET) &&
6873             (sopt->sopt_name == SO_SETFIB)) {
6874                 inp = (struct sctp_inpcb *)so->so_pcb;
6875                 if (inp == NULL) {
6876                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6877                         return (EINVAL);
6878                 }
6879                 SCTP_INP_WLOCK(inp);
6880                 inp->fibnum = so->so_fibnum;
6881                 SCTP_INP_WUNLOCK(inp);
6882                 return (0);
6883         }
6884         if (sopt->sopt_level != IPPROTO_SCTP) {
6885                 /* wrong proto level... send back up to IP */
6886 #ifdef INET6
6887                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6888                         error = ip6_ctloutput(so, sopt);
6889 #endif                          /* INET6 */
6890 #if defined(INET) && defined(INET6)
6891                 else
6892 #endif
6893 #ifdef INET
6894                         error = ip_ctloutput(so, sopt);
6895 #endif
6896                 return (error);
6897         }
6898         optsize = sopt->sopt_valsize;
6899         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6900                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6901                 return (ENOBUFS);
6902         }
6903         if (optsize) {
6904                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6905                 if (optval == NULL) {
6906                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6907                         return (ENOBUFS);
6908                 }
6909                 error = sooptcopyin(sopt, optval, optsize, optsize);
6910                 if (error) {
6911                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6912                         goto out;
6913                 }
6914         }
6915         p = (void *)sopt->sopt_td;
6916         if (sopt->sopt_dir == SOPT_SET) {
6917                 NET_EPOCH_ENTER(et);
6918                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6919                 NET_EPOCH_EXIT(et);
6920         } else if (sopt->sopt_dir == SOPT_GET) {
6921                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6922         } else {
6923                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6924                 error = EINVAL;
6925         }
6926         if ((error == 0) && (optval != NULL)) {
6927                 error = sooptcopyout(sopt, optval, optsize);
6928                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6929         } else if (optval != NULL) {
6930                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6931         }
6932 out:
6933         return (error);
6934 }
6935
6936 #ifdef INET
6937 static int
6938 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6939 {
6940         struct epoch_tracker et;
6941         int error = 0;
6942         int create_lock_on = 0;
6943         uint32_t vrf_id;
6944         struct sctp_inpcb *inp;
6945         struct sctp_tcb *stcb = NULL;
6946
6947         inp = (struct sctp_inpcb *)so->so_pcb;
6948         if (inp == NULL) {
6949                 /* I made the same as TCP since we are not setup? */
6950                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6951                 return (ECONNRESET);
6952         }
6953         if (addr == NULL) {
6954                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6955                 return EINVAL;
6956         }
6957
6958         switch (addr->sa_family) {
6959 #ifdef INET6
6960         case AF_INET6:
6961                 {
6962                         struct sockaddr_in6 *sin6;
6963
6964                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6965                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6966                                 return (EINVAL);
6967                         }
6968                         sin6 = (struct sockaddr_in6 *)addr;
6969                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
6970                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6971                                 return (error);
6972                         }
6973                         break;
6974                 }
6975 #endif
6976 #ifdef INET
6977         case AF_INET:
6978                 {
6979                         struct sockaddr_in *sin;
6980
6981                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6982                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6983                                 return (EINVAL);
6984                         }
6985                         sin = (struct sockaddr_in *)addr;
6986                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
6987                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6988                                 return (error);
6989                         }
6990                         break;
6991                 }
6992 #endif
6993         default:
6994                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6995                 return (EAFNOSUPPORT);
6996         }
6997         SCTP_INP_INCR_REF(inp);
6998         SCTP_ASOC_CREATE_LOCK(inp);
6999         create_lock_on = 1;
7000         NET_EPOCH_ENTER(et);
7001
7002         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7003             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7004                 /* Should I really unlock ? */
7005                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7006                 error = EFAULT;
7007                 goto out_now;
7008         }
7009 #ifdef INET6
7010         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7011             (addr->sa_family == AF_INET6)) {
7012                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7013                 error = EINVAL;
7014                 goto out_now;
7015         }
7016 #endif
7017         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7018                 /* Bind a ephemeral port */
7019                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7020                 if (error) {
7021                         goto out_now;
7022                 }
7023         }
7024         /* Now do we connect? */
7025         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7026             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7027                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7028                 error = EINVAL;
7029                 goto out_now;
7030         }
7031         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7032             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7033                 /* We are already connected AND the TCP model */
7034                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7035                 error = EADDRINUSE;
7036                 goto out_now;
7037         }
7038         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7039                 SCTP_INP_RLOCK(inp);
7040                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7041                 SCTP_INP_RUNLOCK(inp);
7042         } else {
7043                 /*
7044                  * We increment here since sctp_findassociation_ep_addr()
7045                  * will do a decrement if it finds the stcb as long as the
7046                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7047                  */
7048                 SCTP_INP_INCR_REF(inp);
7049                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7050                 if (stcb == NULL) {
7051                         SCTP_INP_DECR_REF(inp);
7052                 } else {
7053                         SCTP_TCB_UNLOCK(stcb);
7054                 }
7055         }
7056         if (stcb != NULL) {
7057                 /* Already have or am bring up an association */
7058                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7059                 error = EALREADY;
7060                 goto out_now;
7061         }
7062
7063         vrf_id = inp->def_vrf_id;
7064         /* We are GOOD to go */
7065         stcb = sctp_aloc_assoc_connected(inp, addr, &error, 0, 0, vrf_id,
7066             inp->sctp_ep.pre_open_stream_count,
7067             inp->sctp_ep.port, p,
7068             SCTP_INITIALIZE_AUTH_PARAMS);
7069         if (stcb == NULL) {
7070                 /* Gak! no memory */
7071                 goto out_now;
7072         }
7073         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7074         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7075
7076         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7077         SCTP_TCB_UNLOCK(stcb);
7078 out_now:
7079         NET_EPOCH_EXIT(et);
7080         if (create_lock_on) {
7081                 SCTP_ASOC_CREATE_UNLOCK(inp);
7082         }
7083         SCTP_INP_DECR_REF(inp);
7084         return (error);
7085 }
7086 #endif
7087
7088 int
7089 sctp_listen(struct socket *so, int backlog, struct thread *p)
7090 {
7091         /*
7092          * Note this module depends on the protocol processing being called
7093          * AFTER any socket level flags and backlog are applied to the
7094          * socket. The traditional way that the socket flags are applied is
7095          * AFTER protocol processing. We have made a change to the
7096          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7097          * place if the socket API for SCTP is to work properly.
7098          */
7099
7100         int error = 0;
7101         struct sctp_inpcb *inp;
7102
7103         inp = (struct sctp_inpcb *)so->so_pcb;
7104         if (inp == NULL) {
7105                 /* I made the same as TCP since we are not setup? */
7106                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7107                 return (ECONNRESET);
7108         }
7109         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7110                 /* See if we have a listener */
7111                 struct sctp_inpcb *tinp;
7112                 union sctp_sockstore store;
7113
7114                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7115                         /* not bound all */
7116                         struct sctp_laddr *laddr;
7117
7118                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7119                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7120                                 switch (store.sa.sa_family) {
7121 #ifdef INET
7122                                 case AF_INET:
7123                                         store.sin.sin_port = inp->sctp_lport;
7124                                         break;
7125 #endif
7126 #ifdef INET6
7127                                 case AF_INET6:
7128                                         store.sin6.sin6_port = inp->sctp_lport;
7129                                         break;
7130 #endif
7131                                 default:
7132                                         break;
7133                                 }
7134                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7135                                 if (tinp && (tinp != inp) &&
7136                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7137                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7138                                     (SCTP_IS_LISTENING(tinp))) {
7139                                         /*
7140                                          * we have a listener already and
7141                                          * its not this inp.
7142                                          */
7143                                         SCTP_INP_DECR_REF(tinp);
7144                                         return (EADDRINUSE);
7145                                 } else if (tinp) {
7146                                         SCTP_INP_DECR_REF(tinp);
7147                                 }
7148                         }
7149                 } else {
7150                         /* Setup a local addr bound all */
7151                         memset(&store, 0, sizeof(store));
7152 #ifdef INET6
7153                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7154                                 store.sa.sa_family = AF_INET6;
7155                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7156                         }
7157 #endif
7158 #ifdef INET
7159                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7160                                 store.sa.sa_family = AF_INET;
7161                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7162                         }
7163 #endif
7164                         switch (store.sa.sa_family) {
7165 #ifdef INET
7166                         case AF_INET:
7167                                 store.sin.sin_port = inp->sctp_lport;
7168                                 break;
7169 #endif
7170 #ifdef INET6
7171                         case AF_INET6:
7172                                 store.sin6.sin6_port = inp->sctp_lport;
7173                                 break;
7174 #endif
7175                         default:
7176                                 break;
7177                         }
7178                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7179                         if (tinp && (tinp != inp) &&
7180                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7181                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7182                             (SCTP_IS_LISTENING(tinp))) {
7183                                 /*
7184                                  * we have a listener already and its not
7185                                  * this inp.
7186                                  */
7187                                 SCTP_INP_DECR_REF(tinp);
7188                                 return (EADDRINUSE);
7189                         } else if (tinp) {
7190                                 SCTP_INP_DECR_REF(tinp);
7191                         }
7192                 }
7193         }
7194         SCTP_INP_INFO_WLOCK();
7195         SCTP_INP_WLOCK(inp);
7196 #ifdef SCTP_LOCK_LOGGING
7197         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7198                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7199         }
7200 #endif
7201         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7202             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7203                 /*
7204                  * The unlucky case - We are in the tcp pool with this guy.
7205                  * - Someone else is in the main inp slot. - We must move
7206                  * this guy (the listener) to the main slot - We must then
7207                  * move the guy that was listener to the TCP Pool.
7208                  */
7209                 if (sctp_swap_inpcb_for_listen(inp)) {
7210                         error = EADDRINUSE;
7211                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7212                         goto out;
7213                 }
7214         }
7215         SOCK_LOCK(so);
7216         error = solisten_proto_check(so);
7217         if (error) {
7218                 SOCK_UNLOCK(so);
7219                 goto out;
7220         }
7221         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7222             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7223                 SOCK_UNLOCK(so);
7224                 solisten_proto_abort(so);
7225                 error = EADDRINUSE;
7226                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7227                 goto out;
7228         }
7229         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7230             ((inp->sctp_flags & SCTP_PCB_FLAGS_WAS_CONNECTED) ||
7231             (inp->sctp_flags & SCTP_PCB_FLAGS_WAS_ABORTED))) {
7232                 SOCK_UNLOCK(so);
7233                 solisten_proto_abort(so);
7234                 error = EINVAL;
7235                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7236                 goto out;
7237         }
7238         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7239                 if ((error = sctp_inpcb_bind_locked(inp, NULL, NULL, p))) {
7240                         SOCK_UNLOCK(so);
7241                         solisten_proto_abort(so);
7242                         /* bind error, probably perm */
7243                         goto out;
7244                 }
7245         }
7246         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7247                 solisten_proto(so, backlog);
7248                 SOCK_UNLOCK(so);
7249                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7250         } else {
7251                 solisten_proto_abort(so);
7252                 SOCK_UNLOCK(so);
7253                 if (backlog > 0) {
7254                         inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7255                 } else {
7256                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7257                 }
7258         }
7259 out:
7260         SCTP_INP_WUNLOCK(inp);
7261         SCTP_INP_INFO_WUNLOCK();
7262         return (error);
7263 }
7264
7265 static int sctp_defered_wakeup_cnt = 0;
7266
7267 int
7268 sctp_accept(struct socket *so, struct sockaddr **addr)
7269 {
7270         struct sctp_tcb *stcb;
7271         struct sctp_inpcb *inp;
7272         union sctp_sockstore store;
7273 #ifdef INET6
7274         int error;
7275 #endif
7276         inp = (struct sctp_inpcb *)so->so_pcb;
7277
7278         if (inp == NULL) {
7279                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7280                 return (ECONNRESET);
7281         }
7282         SCTP_INP_WLOCK(inp);
7283         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7284                 SCTP_INP_WUNLOCK(inp);
7285                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7286                 return (EOPNOTSUPP);
7287         }
7288         if (so->so_state & SS_ISDISCONNECTED) {
7289                 SCTP_INP_WUNLOCK(inp);
7290                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7291                 return (ECONNABORTED);
7292         }
7293         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7294         if (stcb == NULL) {
7295                 SCTP_INP_WUNLOCK(inp);
7296                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7297                 return (ECONNRESET);
7298         }
7299         SCTP_TCB_LOCK(stcb);
7300         store = stcb->asoc.primary_destination->ro._l_addr;
7301         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7302         /* Wake any delayed sleep action */
7303         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7304                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7305                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7306                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7307                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7308                         if (sowriteable(inp->sctp_socket)) {
7309                                 sowwakeup_locked(inp->sctp_socket);
7310                         } else {
7311                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7312                         }
7313                 }
7314                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7315                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7316                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7317                         if (soreadable(inp->sctp_socket)) {
7318                                 sctp_defered_wakeup_cnt++;
7319                                 sorwakeup_locked(inp->sctp_socket);
7320                         } else {
7321                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7322                         }
7323                 }
7324         }
7325         SCTP_INP_WUNLOCK(inp);
7326         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7327                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7328                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7329         } else {
7330                 SCTP_TCB_UNLOCK(stcb);
7331         }
7332         switch (store.sa.sa_family) {
7333 #ifdef INET
7334         case AF_INET:
7335                 {
7336                         struct sockaddr_in *sin;
7337
7338                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7339                         if (sin == NULL)
7340                                 return (ENOMEM);
7341                         sin->sin_family = AF_INET;
7342                         sin->sin_len = sizeof(*sin);
7343                         sin->sin_port = store.sin.sin_port;
7344                         sin->sin_addr = store.sin.sin_addr;
7345                         *addr = (struct sockaddr *)sin;
7346                         break;
7347                 }
7348 #endif
7349 #ifdef INET6
7350         case AF_INET6:
7351                 {
7352                         struct sockaddr_in6 *sin6;
7353
7354                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7355                         if (sin6 == NULL)
7356                                 return (ENOMEM);
7357                         sin6->sin6_family = AF_INET6;
7358                         sin6->sin6_len = sizeof(*sin6);
7359                         sin6->sin6_port = store.sin6.sin6_port;
7360                         sin6->sin6_addr = store.sin6.sin6_addr;
7361                         if ((error = sa6_recoverscope(sin6)) != 0) {
7362                                 SCTP_FREE_SONAME(sin6);
7363                                 return (error);
7364                         }
7365                         *addr = (struct sockaddr *)sin6;
7366                         break;
7367                 }
7368 #endif
7369         default:
7370                 /* TSNH */
7371                 break;
7372         }
7373         return (0);
7374 }
7375
7376 #ifdef INET
7377 int
7378 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7379 {
7380         struct sockaddr_in *sin;
7381         uint32_t vrf_id;
7382         struct sctp_inpcb *inp;
7383         struct sctp_ifa *sctp_ifa;
7384
7385         /*
7386          * Do the malloc first in case it blocks.
7387          */
7388         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7389         if (sin == NULL)
7390                 return (ENOMEM);
7391         sin->sin_family = AF_INET;
7392         sin->sin_len = sizeof(*sin);
7393         inp = (struct sctp_inpcb *)so->so_pcb;
7394         if (!inp) {
7395                 SCTP_FREE_SONAME(sin);
7396                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7397                 return (ECONNRESET);
7398         }
7399         SCTP_INP_RLOCK(inp);
7400         sin->sin_port = inp->sctp_lport;
7401         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7402                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7403                         struct sctp_tcb *stcb;
7404                         struct sockaddr_in *sin_a;
7405                         struct sctp_nets *net;
7406                         int fnd;
7407
7408                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7409                         if (stcb == NULL) {
7410                                 goto notConn;
7411                         }
7412                         fnd = 0;
7413                         sin_a = NULL;
7414                         SCTP_TCB_LOCK(stcb);
7415                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7416                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7417                                 if (sin_a == NULL)
7418                                         /* this will make coverity happy */
7419                                         continue;
7420
7421                                 if (sin_a->sin_family == AF_INET) {
7422                                         fnd = 1;
7423                                         break;
7424                                 }
7425                         }
7426                         if ((!fnd) || (sin_a == NULL)) {
7427                                 /* punt */
7428                                 SCTP_TCB_UNLOCK(stcb);
7429                                 goto notConn;
7430                         }
7431
7432                         vrf_id = inp->def_vrf_id;
7433                         sctp_ifa = sctp_source_address_selection(inp,
7434                             stcb,
7435                             (sctp_route_t *)&net->ro,
7436                             net, 0, vrf_id);
7437                         if (sctp_ifa) {
7438                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7439                                 sctp_free_ifa(sctp_ifa);
7440                         }
7441                         SCTP_TCB_UNLOCK(stcb);
7442                 } else {
7443                         /* For the bound all case you get back 0 */
7444         notConn:
7445                         sin->sin_addr.s_addr = 0;
7446                 }
7447
7448         } else {
7449                 /* Take the first IPv4 address in the list */
7450                 struct sctp_laddr *laddr;
7451                 int fnd = 0;
7452
7453                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7454                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7455                                 struct sockaddr_in *sin_a;
7456
7457                                 sin_a = &laddr->ifa->address.sin;
7458                                 sin->sin_addr = sin_a->sin_addr;
7459                                 fnd = 1;
7460                                 break;
7461                         }
7462                 }
7463                 if (!fnd) {
7464                         SCTP_FREE_SONAME(sin);
7465                         SCTP_INP_RUNLOCK(inp);
7466                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7467                         return (ENOENT);
7468                 }
7469         }
7470         SCTP_INP_RUNLOCK(inp);
7471         (*addr) = (struct sockaddr *)sin;
7472         return (0);
7473 }
7474
7475 int
7476 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7477 {
7478         struct sockaddr_in *sin;
7479         int fnd;
7480         struct sockaddr_in *sin_a;
7481         struct sctp_inpcb *inp;
7482         struct sctp_tcb *stcb;
7483         struct sctp_nets *net;
7484
7485         /* Do the malloc first in case it blocks. */
7486         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7487         if (sin == NULL)
7488                 return (ENOMEM);
7489         sin->sin_family = AF_INET;
7490         sin->sin_len = sizeof(*sin);
7491
7492         inp = (struct sctp_inpcb *)so->so_pcb;
7493         if ((inp == NULL) ||
7494             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7495                 /* UDP type and listeners will drop out here */
7496                 SCTP_FREE_SONAME(sin);
7497                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7498                 return (ENOTCONN);
7499         }
7500         SCTP_INP_RLOCK(inp);
7501         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7502         if (stcb) {
7503                 SCTP_TCB_LOCK(stcb);
7504         }
7505         SCTP_INP_RUNLOCK(inp);
7506         if (stcb == NULL) {
7507                 SCTP_FREE_SONAME(sin);
7508                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7509                 return (ECONNRESET);
7510         }
7511         fnd = 0;
7512         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7513                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7514                 if (sin_a->sin_family == AF_INET) {
7515                         fnd = 1;
7516                         sin->sin_port = stcb->rport;
7517                         sin->sin_addr = sin_a->sin_addr;
7518                         break;
7519                 }
7520         }
7521         SCTP_TCB_UNLOCK(stcb);
7522         if (!fnd) {
7523                 /* No IPv4 address */
7524                 SCTP_FREE_SONAME(sin);
7525                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7526                 return (ENOENT);
7527         }
7528         (*addr) = (struct sockaddr *)sin;
7529         return (0);
7530 }
7531
7532 #define SCTP_PROTOSW                                            \
7533         .pr_protocol =  IPPROTO_SCTP,                           \
7534         .pr_ctloutput = sctp_ctloutput,                         \
7535         .pr_abort =     sctp_abort,                             \
7536         .pr_accept =    sctp_accept,                            \
7537         .pr_attach =    sctp_attach,                            \
7538         .pr_bind =      sctp_bind,                              \
7539         .pr_connect =   sctp_connect,                           \
7540         .pr_control =   in_control,                             \
7541         .pr_close =     sctp_close,                             \
7542         .pr_detach =    sctp_close,                             \
7543         .pr_sopoll =    sopoll_generic,                         \
7544         .pr_flush =     sctp_flush,                             \
7545         .pr_disconnect = sctp_disconnect,                       \
7546         .pr_listen =    sctp_listen,                            \
7547         .pr_peeraddr =  sctp_peeraddr,                          \
7548         .pr_send =      sctp_sendm,                             \
7549         .pr_shutdown =  sctp_shutdown,                          \
7550         .pr_sockaddr =  sctp_ingetaddr,                         \
7551         .pr_sosend =    sctp_sosend,                            \
7552         .pr_soreceive = sctp_soreceive                          \
7553
7554 struct protosw sctp_seqpacket_protosw = {
7555         .pr_type = SOCK_SEQPACKET,
7556         .pr_flags = PR_WANTRCVD,
7557         SCTP_PROTOSW
7558 };
7559
7560 struct protosw sctp_stream_protosw = {
7561         .pr_type = SOCK_STREAM,
7562         .pr_flags = PR_CONNREQUIRED | PR_WANTRCVD,
7563         SCTP_PROTOSW
7564 };
7565 #endif