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
  59 extern const struct sctp_cc_functions sctp_cc_functions[];
  60 extern const struct sctp_ss_functions sctp_ss_functions[];
  61
  62 void
  63 sctp_init(void)
  64 {
  65         u_long sb_max_adj;
  66
  67         /* Initialize and modify the sysctled variables */
  68         sctp_init_sysctls();
  69         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  70                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  71         /*
  72          * Allow a user to take no more than 1/2 the number of clusters or
  73          * the SB_MAX, whichever is smaller, for the send window.
  74          */
  75         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  76         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  77             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  78         /*
  79          * Now for the recv window, should we take the same amount? or
  80          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  81          * now I will just copy.
  82          */
  83         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  84         SCTP_BASE_VAR(first_time) = 0;
  85         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  86         sctp_pcb_init();
  87 #if defined(SCTP_PACKET_LOGGING)
  88         SCTP_BASE_VAR(packet_log_writers) = 0;
  89         SCTP_BASE_VAR(packet_log_end) = 0;
  90         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  91 #endif
  92         SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
  93             sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
  94 }
  95
  96 #ifdef VIMAGE
  97 static void
  98 sctp_finish(void *unused __unused)
  99 {
 100         sctp_pcb_finish();
 101 }
 102
 103 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 104 #endif
 105
 106 void
 107 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 108 {
 109         struct sctp_tmit_chunk *chk;
 110         uint16_t overhead;
 111
 112         /* Adjust that too */
 113         stcb->asoc.smallest_mtu = nxtsz;
 114         /* now off to subtract IP_DF flag if needed */
 115         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 116         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 117                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 118         }
 119         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 120                 if ((chk->send_size + overhead) > nxtsz) {
 121                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 122                 }
 123         }
 124         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 125                 if ((chk->send_size + overhead) > nxtsz) {
 126                         /*
 127                          * For this guy we also mark for immediate resend
 128                          * since we sent to big of chunk
 129                          */
 130                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 131                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 132                                 sctp_flight_size_decrease(chk);
 133                                 sctp_total_flight_decrease(stcb, chk);
 134                                 chk->sent = SCTP_DATAGRAM_RESEND;
 135                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 136                                 chk->rec.data.doing_fast_retransmit = 0;
 137                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 138                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 139                                             chk->whoTo->flight_size,
 140                                             chk->book_size,
 141                                             (uint32_t)(uintptr_t)chk->whoTo,
 142                                             chk->rec.data.tsn);
 143                                 }
 144                                 /* Clear any time so NO RTT is being done */
 145                                 if (chk->do_rtt == 1) {
 146                                         chk->do_rtt = 0;
 147                                         chk->whoTo->rto_needed = 1;
 148                                 }
 149                         }
 150                 }
 151         }
 152 }
 153
 154 #ifdef INET
 155 void
 156 sctp_notify(struct sctp_inpcb *inp,
 157     struct sctp_tcb *stcb,
 158     struct sctp_nets *net,
 159     uint8_t icmp_type,
 160     uint8_t icmp_code,
 161     uint16_t ip_len,
 162     uint32_t next_mtu)
 163 {
 164         int timer_stopped;
 165
 166         if (icmp_type != ICMP_UNREACH) {
 167                 /* We only care about unreachable */
 168                 SCTP_TCB_UNLOCK(stcb);
 169                 return;
 170         }
 171         if ((icmp_code == ICMP_UNREACH_NET) ||
 172             (icmp_code == ICMP_UNREACH_HOST) ||
 173             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 174             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 175             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 176             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 177             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 178             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 179                 /* Mark the net unreachable. */
 180                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 181                         /* OK, that destination is NOT reachable. */
 182                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 183                         net->dest_state &= ~SCTP_ADDR_PF;
 184                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 185                             stcb, 0,
 186                             (void *)net, SCTP_SO_NOT_LOCKED);
 187                 }
 188                 SCTP_TCB_UNLOCK(stcb);
 189         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 190             (icmp_code == ICMP_UNREACH_PORT)) {
 191                 /* Treat it like an ABORT. */
 192                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 193                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 194                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 195                 /* no need to unlock here, since the TCB is gone */
 196         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 197                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 198                         SCTP_TCB_UNLOCK(stcb);
 199                         return;
 200                 }
 201                 /* Find the next (smaller) MTU */
 202                 if (next_mtu == 0) {
 203                         /*
 204                          * Old type router that does not tell us what the
 205                          * next MTU is. Rats we will have to guess (in a
 206                          * educated fashion of course).
 207                          */
 208                         next_mtu = sctp_get_prev_mtu(ip_len);
 209                 }
 210                 /* Stop the PMTU timer. */
 211                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 212                         timer_stopped = 1;
 213                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 214                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 215                 } else {
 216                         timer_stopped = 0;
 217                 }
 218                 /* Update the path MTU. */
 219                 if (net->port) {
 220                         next_mtu -= sizeof(struct udphdr);
 221                 }
 222                 if (net->mtu > next_mtu) {
 223                         net->mtu = next_mtu;
 224                         if (net->port) {
 225                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 226                         } else {
 227                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 228                         }
 229                 }
 230                 /* Update the association MTU */
 231                 if (stcb->asoc.smallest_mtu > next_mtu) {
 232                         sctp_pathmtu_adjustment(stcb, next_mtu);
 233                 }
 234                 /* Finally, start the PMTU timer if it was running before. */
 235                 if (timer_stopped) {
 236                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 237                 }
 238                 SCTP_TCB_UNLOCK(stcb);
 239         } else {
 240                 SCTP_TCB_UNLOCK(stcb);
 241         }
 242 }
 243
 244 void
 245 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 246 {
 247         struct ip *outer_ip;
 248         struct ip *inner_ip;
 249         struct sctphdr *sh;
 250         struct icmp *icmp;
 251         struct sctp_inpcb *inp;
 252         struct sctp_tcb *stcb;
 253         struct sctp_nets *net;
 254         struct sctp_init_chunk *ch;
 255         struct sockaddr_in src, dst;
 256
 257         if (sa->sa_family != AF_INET ||
 258             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 259                 return;
 260         }
 261         if (PRC_IS_REDIRECT(cmd)) {
 262                 vip = NULL;
 263         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 264                 return;
 265         }
 266         if (vip != NULL) {
 267                 inner_ip = (struct ip *)vip;
 268                 icmp = (struct icmp *)((caddr_t)inner_ip -
 269                     (sizeof(struct icmp) - sizeof(struct ip)));
 270                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 271                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 272                 memset(&src, 0, sizeof(struct sockaddr_in));
 273                 src.sin_family = AF_INET;
 274                 src.sin_len = sizeof(struct sockaddr_in);
 275                 src.sin_port = sh->src_port;
 276                 src.sin_addr = inner_ip->ip_src;
 277                 memset(&dst, 0, sizeof(struct sockaddr_in));
 278                 dst.sin_family = AF_INET;
 279                 dst.sin_len = sizeof(struct sockaddr_in);
 280                 dst.sin_port = sh->dest_port;
 281                 dst.sin_addr = inner_ip->ip_dst;
 282                 /*
 283                  * 'dst' holds the dest of the packet that failed to be
 284                  * sent. 'src' holds our local endpoint address. Thus we
 285                  * reverse the dst and the src in the lookup.
 286                  */
 287                 inp = NULL;
 288                 net = NULL;
 289                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 290                     (struct sockaddr *)&src,
 291                     &inp, &net, 1,
 292                     SCTP_DEFAULT_VRFID);
 293                 if ((stcb != NULL) &&
 294                     (net != NULL) &&
 295                     (inp != NULL)) {
 296                         /* Check the verification tag */
 297                         if (ntohl(sh->v_tag) != 0) {
 298                                 /*
 299                                  * This must be the verification tag used
 300                                  * for sending out packets. We don't
 301                                  * consider packets reflecting the
 302                                  * verification tag.
 303                                  */
 304                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 305                                         SCTP_TCB_UNLOCK(stcb);
 306                                         return;
 307                                 }
 308                         } else {
 309                                 if (ntohs(outer_ip->ip_len) >=
 310                                     sizeof(struct ip) +
 311                                     8 + (inner_ip->ip_hl << 2) + 20) {
 312                                         /*
 313                                          * In this case we can check if we
 314                                          * got an INIT chunk and if the
 315                                          * initiate tag matches.
 316                                          */
 317                                         ch = (struct sctp_init_chunk *)(sh + 1);
 318                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 319                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 320                                                 SCTP_TCB_UNLOCK(stcb);
 321                                                 return;
 322                                         }
 323                                 } else {
 324                                         SCTP_TCB_UNLOCK(stcb);
 325                                         return;
 326                                 }
 327                         }
 328                         sctp_notify(inp, stcb, net,
 329                             icmp->icmp_type,
 330                             icmp->icmp_code,
 331                             ntohs(inner_ip->ip_len),
 332                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 333                 } else {
 334                         if ((stcb == NULL) && (inp != NULL)) {
 335                                 /* reduce ref-count */
 336                                 SCTP_INP_WLOCK(inp);
 337                                 SCTP_INP_DECR_REF(inp);
 338                                 SCTP_INP_WUNLOCK(inp);
 339                         }
 340                         if (stcb) {
 341                                 SCTP_TCB_UNLOCK(stcb);
 342                         }
 343                 }
 344         }
 345         return;
 346 }
 347 #endif
 348
 349 static int
 350 sctp_getcred(SYSCTL_HANDLER_ARGS)
 351 {
 352         struct xucred xuc;
 353         struct sockaddr_in addrs[2];
 354         struct sctp_inpcb *inp;
 355         struct sctp_nets *net;
 356         struct sctp_tcb *stcb;
 357         int error;
 358         uint32_t vrf_id;
 359
 360         /* FIX, for non-bsd is this right? */
 361         vrf_id = SCTP_DEFAULT_VRFID;
 362
 363         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 364
 365         if (error)
 366                 return (error);
 367
 368         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 369         if (error)
 370                 return (error);
 371
 372         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 373             sintosa(&addrs[0]),
 374             &inp, &net, 1, vrf_id);
 375         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 376                 if ((inp != NULL) && (stcb == NULL)) {
 377                         /* reduce ref-count */
 378                         SCTP_INP_WLOCK(inp);
 379                         SCTP_INP_DECR_REF(inp);
 380                         goto cred_can_cont;
 381                 }
 382
 383                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 384                 error = ENOENT;
 385                 goto out;
 386         }
 387         SCTP_TCB_UNLOCK(stcb);
 388         /*
 389          * We use the write lock here, only since in the error leg we need
 390          * it. If we used RLOCK, then we would have to
 391          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 392          * Better to use higher wlock.
 393          */
 394         SCTP_INP_WLOCK(inp);
 395 cred_can_cont:
 396         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 397         if (error) {
 398                 SCTP_INP_WUNLOCK(inp);
 399                 goto out;
 400         }
 401         cru2x(inp->sctp_socket->so_cred, &xuc);
 402         SCTP_INP_WUNLOCK(inp);
 403         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 404 out:
 405         return (error);
 406 }
 407
 408 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred,
 409     CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 410     0, 0, sctp_getcred, "S,ucred",
 411     "Get the ucred of a SCTP connection");
 412
 413
 414 #ifdef INET
 415 static void
 416 sctp_abort(struct socket *so)
 417 {
 418         struct epoch_tracker et;
 419         struct sctp_inpcb *inp;
 420         uint32_t flags;
 421
 422         inp = (struct sctp_inpcb *)so->so_pcb;
 423         if (inp == NULL) {
 424                 return;
 425         }
 426
 427         NET_EPOCH_ENTER(et);
 428 sctp_must_try_again:
 429         flags = inp->sctp_flags;
 430 #ifdef SCTP_LOG_CLOSING
 431         sctp_log_closing(inp, NULL, 17);
 432 #endif
 433         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 434             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 435 #ifdef SCTP_LOG_CLOSING
 436                 sctp_log_closing(inp, NULL, 16);
 437 #endif
 438                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 439                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 440                 SOCK_LOCK(so);
 441                 SCTP_SB_CLEAR(so->so_snd);
 442                 /*
 443                  * same for the rcv ones, they are only here for the
 444                  * accounting/select.
 445                  */
 446                 SCTP_SB_CLEAR(so->so_rcv);
 447
 448                 /* Now null out the reference, we are completely detached. */
 449                 so->so_pcb = NULL;
 450                 SOCK_UNLOCK(so);
 451         } else {
 452                 flags = inp->sctp_flags;
 453                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 454                         goto sctp_must_try_again;
 455                 }
 456         }
 457         NET_EPOCH_EXIT(et);
 458         return;
 459 }
 460
 461 static int
 462 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 463 {
 464         struct sctp_inpcb *inp;
 465         struct inpcb *ip_inp;
 466         int error;
 467         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 468
 469         inp = (struct sctp_inpcb *)so->so_pcb;
 470         if (inp != NULL) {
 471                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 472                 return (EINVAL);
 473         }
 474         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 475                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 476                 if (error) {
 477                         return (error);
 478                 }
 479         }
 480         error = sctp_inpcb_alloc(so, vrf_id);
 481         if (error) {
 482                 return (error);
 483         }
 484         inp = (struct sctp_inpcb *)so->so_pcb;
 485         SCTP_INP_WLOCK(inp);
 486         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 487         ip_inp = &inp->ip_inp.inp;
 488         ip_inp->inp_vflag |= INP_IPV4;
 489         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 490         SCTP_INP_WUNLOCK(inp);
 491         return (0);
 492 }
 493
 494 static int
 495 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 496 {
 497         struct sctp_inpcb *inp;
 498
 499         inp = (struct sctp_inpcb *)so->so_pcb;
 500         if (inp == NULL) {
 501                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 502                 return (EINVAL);
 503         }
 504         if (addr != NULL) {
 505                 if ((addr->sa_family != AF_INET) ||
 506                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 507                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 508                         return (EINVAL);
 509                 }
 510         }
 511         return (sctp_inpcb_bind(so, addr, NULL, p));
 512 }
 513
 514 #endif
 515 void
 516 sctp_close(struct socket *so)
 517 {
 518         struct epoch_tracker et;
 519         struct sctp_inpcb *inp;
 520         uint32_t flags;
 521
 522         inp = (struct sctp_inpcb *)so->so_pcb;
 523         if (inp == NULL)
 524                 return;
 525
 526         /*
 527          * Inform all the lower layer assoc that we are done.
 528          */
 529         NET_EPOCH_ENTER(et);
 530 sctp_must_try_again:
 531         flags = inp->sctp_flags;
 532 #ifdef SCTP_LOG_CLOSING
 533         sctp_log_closing(inp, NULL, 17);
 534 #endif
 535         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 536             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 537                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 538                     (so->so_rcv.sb_cc > 0)) {
 539 #ifdef SCTP_LOG_CLOSING
 540                         sctp_log_closing(inp, NULL, 13);
 541 #endif
 542                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 543                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 544                 } else {
 545 #ifdef SCTP_LOG_CLOSING
 546                         sctp_log_closing(inp, NULL, 14);
 547 #endif
 548                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 549                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 550                 }
 551                 /*
 552                  * The socket is now detached, no matter what the state of
 553                  * the SCTP association.
 554                  */
 555                 SOCK_LOCK(so);
 556                 SCTP_SB_CLEAR(so->so_snd);
 557                 /*
 558                  * same for the rcv ones, they are only here for the
 559                  * accounting/select.
 560                  */
 561                 SCTP_SB_CLEAR(so->so_rcv);
 562
 563                 /* Now null out the reference, we are completely detached. */
 564                 so->so_pcb = NULL;
 565                 SOCK_UNLOCK(so);
 566         } else {
 567                 flags = inp->sctp_flags;
 568                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 569                         goto sctp_must_try_again;
 570                 }
 571         }
 572         NET_EPOCH_EXIT(et);
 573         return;
 574 }
 575
 576
 577 int
 578 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 579     struct mbuf *control, struct thread *p);
 580
 581
 582 int
 583 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 584     struct mbuf *control, struct thread *p)
 585 {
 586         struct sctp_inpcb *inp;
 587         int error;
 588
 589         inp = (struct sctp_inpcb *)so->so_pcb;
 590         if (inp == NULL) {
 591                 if (control) {
 592                         sctp_m_freem(control);
 593                         control = NULL;
 594                 }
 595                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 596                 sctp_m_freem(m);
 597                 return (EINVAL);
 598         }
 599         /* Got to have an to address if we are NOT a connected socket */
 600         if ((addr == NULL) &&
 601             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 602             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 603                 goto connected_type;
 604         } else if (addr == NULL) {
 605                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 606                 error = EDESTADDRREQ;
 607                 sctp_m_freem(m);
 608                 if (control) {
 609                         sctp_m_freem(control);
 610                         control = NULL;
 611                 }
 612                 return (error);
 613         }
 614 #ifdef INET6
 615         if (addr->sa_family != AF_INET) {
 616                 /* must be a v4 address! */
 617                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 618                 sctp_m_freem(m);
 619                 if (control) {
 620                         sctp_m_freem(control);
 621                         control = NULL;
 622                 }
 623                 error = EDESTADDRREQ;
 624                 return (error);
 625         }
 626 #endif                          /* INET6 */
 627 connected_type:
 628         /* now what about control */
 629         if (control) {
 630                 if (inp->control) {
 631                         sctp_m_freem(inp->control);
 632                         inp->control = NULL;
 633                 }
 634                 inp->control = control;
 635         }
 636         /* Place the data */
 637         if (inp->pkt) {
 638                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 639                 inp->pkt_last = m;
 640         } else {
 641                 inp->pkt_last = inp->pkt = m;
 642         }
 643         if (
 644         /* FreeBSD uses a flag passed */
 645             ((flags & PRUS_MORETOCOME) == 0)
 646             ) {
 647                 /*
 648                  * note with the current version this code will only be used
 649                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 650                  * re-defining sosend to use the sctp_sosend. One can
 651                  * optionally switch back to this code (by changing back the
 652                  * definitions) but this is not advisable. This code is used
 653                  * by FreeBSD when sending a file with sendfile() though.
 654                  */
 655                 struct epoch_tracker et;
 656                 int ret;
 657
 658                 NET_EPOCH_ENTER(et);
 659                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 660                 NET_EPOCH_EXIT(et);
 661                 inp->pkt = NULL;
 662                 inp->control = NULL;
 663                 return (ret);
 664         } else {
 665                 return (0);
 666         }
 667 }
 668
 669 int
 670 sctp_disconnect(struct socket *so)
 671 {
 672         struct sctp_inpcb *inp;
 673
 674         inp = (struct sctp_inpcb *)so->so_pcb;
 675         if (inp == NULL) {
 676                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 677                 return (ENOTCONN);
 678         }
 679         SCTP_INP_RLOCK(inp);
 680         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 681             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 682                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 683                         /* No connection */
 684                         SCTP_INP_RUNLOCK(inp);
 685                         return (0);
 686                 } else {
 687                         struct epoch_tracker et;
 688                         struct sctp_association *asoc;
 689                         struct sctp_tcb *stcb;
 690
 691                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 692                         if (stcb == NULL) {
 693                                 SCTP_INP_RUNLOCK(inp);
 694                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 695                                 return (EINVAL);
 696                         }
 697                         SCTP_TCB_LOCK(stcb);
 698                         asoc = &stcb->asoc;
 699                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 700                                 /* We are about to be freed, out of here */
 701                                 SCTP_TCB_UNLOCK(stcb);
 702                                 SCTP_INP_RUNLOCK(inp);
 703                                 return (0);
 704                         }
 705                         NET_EPOCH_ENTER(et);
 706                         if (((so->so_options & SO_LINGER) &&
 707                             (so->so_linger == 0)) ||
 708                             (so->so_rcv.sb_cc > 0)) {
 709                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 710                                         /* Left with Data unread */
 711                                         struct mbuf *op_err;
 712
 713                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 714                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 715                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 716                                 }
 717                                 SCTP_INP_RUNLOCK(inp);
 718                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 719                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 720                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 721                                 }
 722                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 723                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 724                                 /* No unlock tcb assoc is gone */
 725                                 NET_EPOCH_EXIT(et);
 726                                 return (0);
 727                         }
 728                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 729                             TAILQ_EMPTY(&asoc->sent_queue) &&
 730                             (asoc->stream_queue_cnt == 0)) {
 731                                 /* there is nothing queued to send, so done */
 732                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 733                                         goto abort_anyway;
 734                                 }
 735                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 736                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 737                                         /* only send SHUTDOWN 1st time thru */
 738                                         struct sctp_nets *netp;
 739
 740                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 741                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 742                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 743                                         }
 744                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 745                                         sctp_stop_timers_for_shutdown(stcb);
 746                                         if (stcb->asoc.alternate) {
 747                                                 netp = stcb->asoc.alternate;
 748                                         } else {
 749                                                 netp = stcb->asoc.primary_destination;
 750                                         }
 751                                         sctp_send_shutdown(stcb, netp);
 752                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 753                                             stcb->sctp_ep, stcb, netp);
 754                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 755                                             stcb->sctp_ep, stcb, NULL);
 756                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 757                                 }
 758                         } else {
 759                                 /*
 760                                  * we still got (or just got) data to send,
 761                                  * so set SHUTDOWN_PENDING
 762                                  */
 763                                 /*
 764                                  * XXX sockets draft says that SCTP_EOF
 765                                  * should be sent with no data. currently,
 766                                  * we will allow user data to be sent first
 767                                  * and move to SHUTDOWN-PENDING
 768                                  */
 769                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 770                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 771                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 772                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 773                                 }
 774                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 775                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 776                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 777                                         struct mbuf *op_err;
 778
 779                         abort_anyway:
 780                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 781                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 782                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 783                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 784                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 785                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 786                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 787                                         }
 788                                         SCTP_INP_RUNLOCK(inp);
 789                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 790                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 791                                         NET_EPOCH_EXIT(et);
 792                                         return (0);
 793                                 } else {
 794                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 795                                 }
 796                         }
 797                         soisdisconnecting(so);
 798                         NET_EPOCH_EXIT(et);
 799                         SCTP_TCB_UNLOCK(stcb);
 800                         SCTP_INP_RUNLOCK(inp);
 801                         return (0);
 802                 }
 803                 /* not reached */
 804         } else {
 805                 /* UDP model does not support this */
 806                 SCTP_INP_RUNLOCK(inp);
 807                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 808                 return (EOPNOTSUPP);
 809         }
 810 }
 811
 812 int
 813 sctp_flush(struct socket *so, int how)
 814 {
 815         /*
 816          * We will just clear out the values and let subsequent close clear
 817          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 818          * they will not be able to read the data, the socket will block
 819          * that from happening.
 820          */
 821         struct sctp_inpcb *inp;
 822
 823         inp = (struct sctp_inpcb *)so->so_pcb;
 824         if (inp == NULL) {
 825                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 826                 return (EINVAL);
 827         }
 828         SCTP_INP_RLOCK(inp);
 829         /* For the 1 to many model this does nothing */
 830         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 831                 SCTP_INP_RUNLOCK(inp);
 832                 return (0);
 833         }
 834         SCTP_INP_RUNLOCK(inp);
 835         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 836                 /*
 837                  * First make sure the sb will be happy, we don't use these
 838                  * except maybe the count
 839                  */
 840                 SCTP_INP_WLOCK(inp);
 841                 SCTP_INP_READ_LOCK(inp);
 842                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 843                 SCTP_INP_READ_UNLOCK(inp);
 844                 SCTP_INP_WUNLOCK(inp);
 845                 so->so_rcv.sb_cc = 0;
 846                 so->so_rcv.sb_mbcnt = 0;
 847                 so->so_rcv.sb_mb = NULL;
 848         }
 849         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 850                 /*
 851                  * First make sure the sb will be happy, we don't use these
 852                  * except maybe the count
 853                  */
 854                 so->so_snd.sb_cc = 0;
 855                 so->so_snd.sb_mbcnt = 0;
 856                 so->so_snd.sb_mb = NULL;
 857
 858         }
 859         return (0);
 860 }
 861
 862 int
 863 sctp_shutdown(struct socket *so)
 864 {
 865         struct sctp_inpcb *inp;
 866
 867         inp = (struct sctp_inpcb *)so->so_pcb;
 868         if (inp == NULL) {
 869                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 870                 return (EINVAL);
 871         }
 872         SCTP_INP_RLOCK(inp);
 873         /* For UDP model this is a invalid call */
 874         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 875             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 876                 /* Restore the flags that the soshutdown took away. */
 877                 SOCKBUF_LOCK(&so->so_rcv);
 878                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 879                 SOCKBUF_UNLOCK(&so->so_rcv);
 880                 /* This proc will wakeup for read and do nothing (I hope) */
 881                 SCTP_INP_RUNLOCK(inp);
 882                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 883                 return (EOPNOTSUPP);
 884         } else {
 885                 /*
 886                  * Ok, if we reach here its the TCP model and it is either a
 887                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 888                  * against it.
 889                  */
 890                 struct epoch_tracker et;
 891                 struct sctp_tcb *stcb;
 892                 struct sctp_association *asoc;
 893                 struct sctp_nets *netp;
 894
 895                 if ((so->so_state &
 896                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 897                         SCTP_INP_RUNLOCK(inp);
 898                         return (ENOTCONN);
 899                 }
 900                 socantsendmore(so);
 901
 902                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 903                 if (stcb == NULL) {
 904                         /*
 905                          * Ok, we hit the case that the shutdown call was
 906                          * made after an abort or something. Nothing to do
 907                          * now.
 908                          */
 909                         SCTP_INP_RUNLOCK(inp);
 910                         return (0);
 911                 }
 912                 SCTP_TCB_LOCK(stcb);
 913                 asoc = &stcb->asoc;
 914                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 915                         SCTP_TCB_UNLOCK(stcb);
 916                         SCTP_INP_RUNLOCK(inp);
 917                         return (0);
 918                 }
 919                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 920                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 921                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 922                         /*
 923                          * If we are not in or before ESTABLISHED, there is
 924                          * no protocol action required.
 925                          */
 926                         SCTP_TCB_UNLOCK(stcb);
 927                         SCTP_INP_RUNLOCK(inp);
 928                         return (0);
 929                 }
 930                 NET_EPOCH_ENTER(et);
 931                 if (stcb->asoc.alternate) {
 932                         netp = stcb->asoc.alternate;
 933                 } else {
 934                         netp = stcb->asoc.primary_destination;
 935                 }
 936                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 937                     TAILQ_EMPTY(&asoc->send_queue) &&
 938                     TAILQ_EMPTY(&asoc->sent_queue) &&
 939                     (asoc->stream_queue_cnt == 0)) {
 940                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 941                                 goto abort_anyway;
 942                         }
 943                         /* there is nothing queued to send, so I'm done... */
 944                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 945                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 946                         sctp_stop_timers_for_shutdown(stcb);
 947                         sctp_send_shutdown(stcb, netp);
 948                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 949                             stcb->sctp_ep, stcb, netp);
 950                 } else {
 951                         /*
 952                          * We still got (or just got) data to send, so set
 953                          * SHUTDOWN_PENDING.
 954                          */
 955                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 956                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 957                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 958                         }
 959                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 960                             TAILQ_EMPTY(&asoc->sent_queue) &&
 961                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 962                                 struct mbuf *op_err;
 963
 964                 abort_anyway:
 965                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 966                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 967                                 SCTP_INP_RUNLOCK(inp);
 968                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 969                                     op_err, SCTP_SO_LOCKED);
 970                                 NET_EPOCH_EXIT(et);
 971                                 return (0);
 972                         }
 973                 }
 974                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 975                 /*
 976                  * XXX: Why do this in the case where we have still data
 977                  * queued?
 978                  */
 979                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 980                 SCTP_TCB_UNLOCK(stcb);
 981                 SCTP_INP_RUNLOCK(inp);
 982                 NET_EPOCH_EXIT(et);
 983                 return (0);
 984         }
 985 }
 986
 987 /*
 988  * copies a "user" presentable address and removes embedded scope, etc.
 989  * returns 0 on success, 1 on error
 990  */
 991 static uint32_t
 992 sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
 993 {
 994 #ifdef INET6
 995         struct sockaddr_in6 lsa6;
 996
 997         src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
 998             &lsa6);
 999 #endif
1000         memcpy(dst, src, src->sa_len);
1001         return (0);
1002 }
1003
1004
1005
1006 /*
1007  * NOTE: assumes addr lock is held
1008  */
1009 static size_t
1010 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1011     struct sctp_tcb *stcb,
1012     size_t limit,
1013     struct sockaddr *addr,
1014     uint32_t vrf_id)
1015 {
1016         struct sctp_ifn *sctp_ifn;
1017         struct sctp_ifa *sctp_ifa;
1018         size_t actual;
1019         int loopback_scope;
1020 #if defined(INET)
1021         int ipv4_local_scope, ipv4_addr_legal;
1022 #endif
1023 #if defined(INET6)
1024         int local_scope, site_scope, ipv6_addr_legal;
1025 #endif
1026         struct sctp_vrf *vrf;
1027
1028         actual = 0;
1029         if (limit == 0)
1030                 return (actual);
1031
1032         if (stcb) {
1033                 /* Turn on all the appropriate scope */
1034                 loopback_scope = stcb->asoc.scope.loopback_scope;
1035 #if defined(INET)
1036                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1037                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1038 #endif
1039 #if defined(INET6)
1040                 local_scope = stcb->asoc.scope.local_scope;
1041                 site_scope = stcb->asoc.scope.site_scope;
1042                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1043 #endif
1044         } else {
1045                 /* Use generic values for endpoints. */
1046                 loopback_scope = 1;
1047 #if defined(INET)
1048                 ipv4_local_scope = 1;
1049 #endif
1050 #if defined(INET6)
1051                 local_scope = 1;
1052                 site_scope = 1;
1053 #endif
1054                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1055 #if defined(INET6)
1056                         ipv6_addr_legal = 1;
1057 #endif
1058 #if defined(INET)
1059                         if (SCTP_IPV6_V6ONLY(inp)) {
1060                                 ipv4_addr_legal = 0;
1061                         } else {
1062                                 ipv4_addr_legal = 1;
1063                         }
1064 #endif
1065                 } else {
1066 #if defined(INET6)
1067                         ipv6_addr_legal = 0;
1068 #endif
1069 #if defined(INET)
1070                         ipv4_addr_legal = 1;
1071 #endif
1072                 }
1073         }
1074         vrf = sctp_find_vrf(vrf_id);
1075         if (vrf == NULL) {
1076                 return (0);
1077         }
1078         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1079                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1080                         if ((loopback_scope == 0) &&
1081                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1082                                 /* Skip loopback if loopback_scope not set */
1083                                 continue;
1084                         }
1085                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1086                                 if (stcb) {
1087                                         /*
1088                                          * For the BOUND-ALL case, the list
1089                                          * associated with a TCB is Always
1090                                          * considered a reverse list.. i.e.
1091                                          * it lists addresses that are NOT
1092                                          * part of the association. If this
1093                                          * is one of those we must skip it.
1094                                          */
1095                                         if (sctp_is_addr_restricted(stcb,
1096                                             sctp_ifa)) {
1097                                                 continue;
1098                                         }
1099                                 }
1100                                 switch (sctp_ifa->address.sa.sa_family) {
1101 #ifdef INET
1102                                 case AF_INET:
1103                                         if (ipv4_addr_legal) {
1104                                                 struct sockaddr_in *sin;
1105
1106                                                 sin = &sctp_ifa->address.sin;
1107                                                 if (sin->sin_addr.s_addr == 0) {
1108                                                         /*
1109                                                          * we skip
1110                                                          * unspecifed
1111                                                          * addresses
1112                                                          */
1113                                                         continue;
1114                                                 }
1115                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1116                                                     &sin->sin_addr) != 0) {
1117                                                         continue;
1118                                                 }
1119                                                 if ((ipv4_local_scope == 0) &&
1120                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1121                                                         continue;
1122                                                 }
1123 #ifdef INET6
1124                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1125                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1126                                                                 return (actual);
1127                                                         }
1128                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)&addr);
1129                                                         ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1130                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1131                                                         actual += sizeof(struct sockaddr_in6);
1132                                                 } else {
1133 #endif
1134                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1135                                                                 return (actual);
1136                                                         }
1137                                                         memcpy(addr, sin, sizeof(struct sockaddr_in));
1138                                                         ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1139                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
1140                                                         actual += sizeof(struct sockaddr_in);
1141 #ifdef INET6
1142                                                 }
1143 #endif
1144                                         } else {
1145                                                 continue;
1146                                         }
1147                                         break;
1148 #endif
1149 #ifdef INET6
1150                                 case AF_INET6:
1151                                         if (ipv6_addr_legal) {
1152                                                 struct sockaddr_in6 *sin6;
1153
1154                                                 sin6 = &sctp_ifa->address.sin6;
1155                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1156                                                         /*
1157                                                          * we skip
1158                                                          * unspecifed
1159                                                          * addresses
1160                                                          */
1161                                                         continue;
1162                                                 }
1163                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1164                                                     &sin6->sin6_addr) != 0) {
1165                                                         continue;
1166                                                 }
1167                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1168                                                         if (local_scope == 0)
1169                                                                 continue;
1170                                                         if (sin6->sin6_scope_id == 0) {
1171                                                                 if (sa6_recoverscope(sin6) != 0)
1172                                                                         /*
1173                                                                          *
1174                                                                          * bad
1175                                                                          * link
1176                                                                          *
1177                                                                          * local
1178                                                                          *
1179                                                                          * address
1180                                                                          */
1181                                                                         continue;
1182                                                         }
1183                                                 }
1184                                                 if ((site_scope == 0) &&
1185                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1186                                                         continue;
1187                                                 }
1188                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1189                                                         return (actual);
1190                                                 }
1191                                                 memcpy(addr, sin6, sizeof(struct sockaddr_in6));
1192                                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1193                                                 addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1194                                                 actual += sizeof(struct sockaddr_in6);
1195                                         } else {
1196                                                 continue;
1197                                         }
1198                                         break;
1199 #endif
1200                                 default:
1201                                         /* TSNH */
1202                                         break;
1203                                 }
1204                         }
1205                 }
1206         } else {
1207                 struct sctp_laddr *laddr;
1208                 size_t sa_len;
1209
1210                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1211                         if (stcb) {
1212                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1213                                         continue;
1214                                 }
1215                         }
1216                         sa_len = laddr->ifa->address.sa.sa_len;
1217                         if (actual + sa_len > limit) {
1218                                 return (actual);
1219                         }
1220                         if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
1221                                 continue;
1222                         switch (laddr->ifa->address.sa.sa_family) {
1223 #ifdef INET
1224                         case AF_INET:
1225                                 ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1226                                 break;
1227 #endif
1228 #ifdef INET6
1229                         case AF_INET6:
1230                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1231                                 break;
1232 #endif
1233                         default:
1234                                 /* TSNH */
1235                                 break;
1236                         }
1237                         addr = (struct sockaddr *)((caddr_t)addr + sa_len);
1238                         actual += sa_len;
1239                 }
1240         }
1241         return (actual);
1242 }
1243
1244 static size_t
1245 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1246     struct sctp_tcb *stcb,
1247     size_t limit,
1248     struct sockaddr *addr)
1249 {
1250         size_t size = 0;
1251
1252         SCTP_IPI_ADDR_RLOCK();
1253         /* fill up addresses for the endpoint's default vrf */
1254         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
1255             inp->def_vrf_id);
1256         SCTP_IPI_ADDR_RUNLOCK();
1257         return (size);
1258 }
1259
1260 /*
1261  * NOTE: assumes addr lock is held
1262  */
1263 static int
1264 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1265 {
1266         int cnt = 0;
1267         struct sctp_vrf *vrf = NULL;
1268
1269         /*
1270          * In both sub-set bound an bound_all cases we return the MAXIMUM
1271          * number of addresses that you COULD get. In reality the sub-set
1272          * bound may have an exclusion list for a given TCB OR in the
1273          * bound-all case a TCB may NOT include the loopback or other
1274          * addresses as well.
1275          */
1276         vrf = sctp_find_vrf(vrf_id);
1277         if (vrf == NULL) {
1278                 return (0);
1279         }
1280         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1281                 struct sctp_ifn *sctp_ifn;
1282                 struct sctp_ifa *sctp_ifa;
1283
1284                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1285                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1286                                 /* Count them if they are the right type */
1287                                 switch (sctp_ifa->address.sa.sa_family) {
1288 #ifdef INET
1289                                 case AF_INET:
1290 #ifdef INET6
1291                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1292                                                 cnt += sizeof(struct sockaddr_in6);
1293                                         else
1294                                                 cnt += sizeof(struct sockaddr_in);
1295 #else
1296                                         cnt += sizeof(struct sockaddr_in);
1297 #endif
1298                                         break;
1299 #endif
1300 #ifdef INET6
1301                                 case AF_INET6:
1302                                         cnt += sizeof(struct sockaddr_in6);
1303                                         break;
1304 #endif
1305                                 default:
1306                                         break;
1307                                 }
1308                         }
1309                 }
1310         } else {
1311                 struct sctp_laddr *laddr;
1312
1313                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1314                         switch (laddr->ifa->address.sa.sa_family) {
1315 #ifdef INET
1316                         case AF_INET:
1317 #ifdef INET6
1318                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1319                                         cnt += sizeof(struct sockaddr_in6);
1320                                 else
1321                                         cnt += sizeof(struct sockaddr_in);
1322 #else
1323                                 cnt += sizeof(struct sockaddr_in);
1324 #endif
1325                                 break;
1326 #endif
1327 #ifdef INET6
1328                         case AF_INET6:
1329                                 cnt += sizeof(struct sockaddr_in6);
1330                                 break;
1331 #endif
1332                         default:
1333                                 break;
1334                         }
1335                 }
1336         }
1337         return (cnt);
1338 }
1339
1340 static int
1341 sctp_count_max_addresses(struct sctp_inpcb *inp)
1342 {
1343         int cnt = 0;
1344
1345         SCTP_IPI_ADDR_RLOCK();
1346         /* count addresses for the endpoint's default VRF */
1347         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1348         SCTP_IPI_ADDR_RUNLOCK();
1349         return (cnt);
1350 }
1351
1352 static int
1353 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1354     size_t optsize, void *p, int delay)
1355 {
1356         int error;
1357         int creat_lock_on = 0;
1358         struct sctp_tcb *stcb = NULL;
1359         struct sockaddr *sa;
1360         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1361         uint32_t vrf_id;
1362         sctp_assoc_t *a_id;
1363
1364         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1365
1366         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1367             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1368                 /* We are already connected AND the TCP model */
1369                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1370                 return (EADDRINUSE);
1371         }
1372
1373         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1374             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1375                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1376                 return (EINVAL);
1377         }
1378
1379         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1380                 SCTP_INP_RLOCK(inp);
1381                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1382                 SCTP_INP_RUNLOCK(inp);
1383         }
1384         if (stcb) {
1385                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1386                 return (EALREADY);
1387         }
1388         SCTP_INP_INCR_REF(inp);
1389         SCTP_ASOC_CREATE_LOCK(inp);
1390         creat_lock_on = 1;
1391         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1392             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1393                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1394                 error = EFAULT;
1395                 goto out_now;
1396         }
1397         totaddrp = (unsigned int *)optval;
1398         totaddr = *totaddrp;
1399         sa = (struct sockaddr *)(totaddrp + 1);
1400         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1401         if (error != 0) {
1402                 /* Already have or am bring up an association */
1403                 SCTP_ASOC_CREATE_UNLOCK(inp);
1404                 creat_lock_on = 0;
1405                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1406                 goto out_now;
1407         }
1408 #ifdef INET6
1409         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1410             (num_v6 > 0)) {
1411                 error = EINVAL;
1412                 goto out_now;
1413         }
1414         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1415             (num_v4 > 0)) {
1416                 if (SCTP_IPV6_V6ONLY(inp)) {
1417                         /*
1418                          * if IPV6_V6ONLY flag, ignore connections destined
1419                          * to a v4 addr or v4-mapped addr
1420                          */
1421                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1422                         error = EINVAL;
1423                         goto out_now;
1424                 }
1425         }
1426 #endif                          /* INET6 */
1427         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1428             SCTP_PCB_FLAGS_UNBOUND) {
1429                 /* Bind a ephemeral port */
1430                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1431                 if (error) {
1432                         goto out_now;
1433                 }
1434         }
1435
1436         /* FIX ME: do we want to pass in a vrf on the connect call? */
1437         vrf_id = inp->def_vrf_id;
1438
1439
1440         /* We are GOOD to go */
1441         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1442             inp->sctp_ep.pre_open_stream_count,
1443             inp->sctp_ep.port,
1444             (struct thread *)p,
1445             SCTP_INITIALIZE_AUTH_PARAMS);
1446         if (stcb == NULL) {
1447                 /* Gak! no memory */
1448                 goto out_now;
1449         }
1450         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1451                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1452                 /* Set the connected flag so we can queue data */
1453                 soisconnecting(so);
1454         }
1455         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1456         /* move to second address */
1457         switch (sa->sa_family) {
1458 #ifdef INET
1459         case AF_INET:
1460                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1461                 break;
1462 #endif
1463 #ifdef INET6
1464         case AF_INET6:
1465                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1466                 break;
1467 #endif
1468         default:
1469                 break;
1470         }
1471
1472         error = 0;
1473         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1474         /* Fill in the return id */
1475         if (error) {
1476                 goto out_now;
1477         }
1478         a_id = (sctp_assoc_t *)optval;
1479         *a_id = sctp_get_associd(stcb);
1480
1481         if (delay) {
1482                 /* doing delayed connection */
1483                 stcb->asoc.delayed_connection = 1;
1484                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1485         } else {
1486                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1487                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1488         }
1489         SCTP_TCB_UNLOCK(stcb);
1490 out_now:
1491         if (creat_lock_on) {
1492                 SCTP_ASOC_CREATE_UNLOCK(inp);
1493         }
1494         SCTP_INP_DECR_REF(inp);
1495         return (error);
1496 }
1497
1498 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1499         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1500             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1501                 SCTP_INP_RLOCK(inp); \
1502                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1503                 if (stcb) { \
1504                         SCTP_TCB_LOCK(stcb); \
1505                 } \
1506                 SCTP_INP_RUNLOCK(inp); \
1507         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1508                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1509                 if (stcb == NULL) { \
1510                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1511                         error = ENOENT; \
1512                         break; \
1513                 } \
1514         } else { \
1515                 stcb = NULL; \
1516         } \
1517 }
1518
1519
1520 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1521         if (size < sizeof(type)) { \
1522                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1523                 error = EINVAL; \
1524                 break; \
1525         } else { \
1526                 destp = (type *)srcp; \
1527         } \
1528 }
1529
1530 static int
1531 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1532     void *p)
1533 {
1534         struct sctp_inpcb *inp = NULL;
1535         int error, val = 0;
1536         struct sctp_tcb *stcb = NULL;
1537
1538         if (optval == NULL) {
1539                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1540                 return (EINVAL);
1541         }
1542
1543         inp = (struct sctp_inpcb *)so->so_pcb;
1544         if (inp == NULL) {
1545                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1546                 return EINVAL;
1547         }
1548         error = 0;
1549
1550         switch (optname) {
1551         case SCTP_NODELAY:
1552         case SCTP_AUTOCLOSE:
1553         case SCTP_EXPLICIT_EOR:
1554         case SCTP_AUTO_ASCONF:
1555         case SCTP_DISABLE_FRAGMENTS:
1556         case SCTP_I_WANT_MAPPED_V4_ADDR:
1557         case SCTP_USE_EXT_RCVINFO:
1558                 SCTP_INP_RLOCK(inp);
1559                 switch (optname) {
1560                 case SCTP_DISABLE_FRAGMENTS:
1561                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1562                         break;
1563                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1564                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1565                         break;
1566                 case SCTP_AUTO_ASCONF:
1567                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1568                                 /* only valid for bound all sockets */
1569                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1570                         } else {
1571                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1572                                 error = EINVAL;
1573                                 goto flags_out;
1574                         }
1575                         break;
1576                 case SCTP_EXPLICIT_EOR:
1577                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1578                         break;
1579                 case SCTP_NODELAY:
1580                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1581                         break;
1582                 case SCTP_USE_EXT_RCVINFO:
1583                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1584                         break;
1585                 case SCTP_AUTOCLOSE:
1586                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1587                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1588                         else
1589                                 val = 0;
1590                         break;
1591
1592                 default:
1593                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1594                         error = ENOPROTOOPT;
1595                 }               /* end switch (sopt->sopt_name) */
1596                 if (*optsize < sizeof(val)) {
1597                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1598                         error = EINVAL;
1599                 }
1600 flags_out:
1601                 SCTP_INP_RUNLOCK(inp);
1602                 if (error == 0) {
1603                         /* return the option value */
1604                         *(int *)optval = val;
1605                         *optsize = sizeof(val);
1606                 }
1607                 break;
1608         case SCTP_GET_PACKET_LOG:
1609                 {
1610 #ifdef  SCTP_PACKET_LOGGING
1611                         uint8_t *target;
1612                         int ret;
1613
1614                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1615                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1616                         *optsize = ret;
1617 #else
1618                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1619                         error = EOPNOTSUPP;
1620 #endif
1621                         break;
1622                 }
1623         case SCTP_REUSE_PORT:
1624                 {
1625                         uint32_t *value;
1626
1627                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1628                                 /* Can't do this for a 1-m socket */
1629                                 error = EINVAL;
1630                                 break;
1631                         }
1632                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1633                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1634                         *optsize = sizeof(uint32_t);
1635                         break;
1636                 }
1637         case SCTP_PARTIAL_DELIVERY_POINT:
1638                 {
1639                         uint32_t *value;
1640
1641                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1642                         *value = inp->partial_delivery_point;
1643                         *optsize = sizeof(uint32_t);
1644                         break;
1645                 }
1646         case SCTP_FRAGMENT_INTERLEAVE:
1647                 {
1648                         uint32_t *value;
1649
1650                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1651                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1652                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1653                                         *value = SCTP_FRAG_LEVEL_2;
1654                                 } else {
1655                                         *value = SCTP_FRAG_LEVEL_1;
1656                                 }
1657                         } else {
1658                                 *value = SCTP_FRAG_LEVEL_0;
1659                         }
1660                         *optsize = sizeof(uint32_t);
1661                         break;
1662                 }
1663         case SCTP_INTERLEAVING_SUPPORTED:
1664                 {
1665                         struct sctp_assoc_value *av;
1666
1667                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1668                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1669
1670                         if (stcb) {
1671                                 av->assoc_value = stcb->asoc.idata_supported;
1672                                 SCTP_TCB_UNLOCK(stcb);
1673                         } else {
1674                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1675                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1676                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1677                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1678                                         SCTP_INP_RLOCK(inp);
1679                                         if (inp->idata_supported) {
1680                                                 av->assoc_value = 1;
1681                                         } else {
1682                                                 av->assoc_value = 0;
1683                                         }
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_CMT_ON_OFF:
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.sctp_cmt_on_off;
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_cmt_on_off;
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_PLUGGABLE_CC:
1723                 {
1724                         struct sctp_assoc_value *av;
1725
1726                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1727                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1728                         if (stcb) {
1729                                 av->assoc_value = stcb->asoc.congestion_control_module;
1730                                 SCTP_TCB_UNLOCK(stcb);
1731                         } else {
1732                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1733                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1734                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1735                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1736                                         SCTP_INP_RLOCK(inp);
1737                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1738                                         SCTP_INP_RUNLOCK(inp);
1739                                 } else {
1740                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1741                                         error = EINVAL;
1742                                 }
1743                         }
1744                         if (error == 0) {
1745                                 *optsize = sizeof(struct sctp_assoc_value);
1746                         }
1747                         break;
1748                 }
1749         case SCTP_CC_OPTION:
1750                 {
1751                         struct sctp_cc_option *cc_opt;
1752
1753                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1754                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1755                         if (stcb == NULL) {
1756                                 error = EINVAL;
1757                         } else {
1758                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1759                                         error = ENOTSUP;
1760                                 } else {
1761                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1762                                         *optsize = sizeof(struct sctp_cc_option);
1763                                 }
1764                                 SCTP_TCB_UNLOCK(stcb);
1765                         }
1766                         break;
1767                 }
1768         case SCTP_PLUGGABLE_SS:
1769                 {
1770                         struct sctp_assoc_value *av;
1771
1772                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1773                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1774                         if (stcb) {
1775                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1776                                 SCTP_TCB_UNLOCK(stcb);
1777                         } else {
1778                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1779                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1780                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1781                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1782                                         SCTP_INP_RLOCK(inp);
1783                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1784                                         SCTP_INP_RUNLOCK(inp);
1785                                 } else {
1786                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1787                                         error = EINVAL;
1788                                 }
1789                         }
1790                         if (error == 0) {
1791                                 *optsize = sizeof(struct sctp_assoc_value);
1792                         }
1793                         break;
1794                 }
1795         case SCTP_SS_VALUE:
1796                 {
1797                         struct sctp_stream_value *av;
1798
1799                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1800                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1801                         if (stcb) {
1802                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1803                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1804                                     &av->stream_value) < 0)) {
1805                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1806                                         error = EINVAL;
1807                                 } else {
1808                                         *optsize = sizeof(struct sctp_stream_value);
1809                                 }
1810                                 SCTP_TCB_UNLOCK(stcb);
1811                         } else {
1812                                 /*
1813                                  * Can't get stream value without
1814                                  * association
1815                                  */
1816                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1817                                 error = EINVAL;
1818                         }
1819                         break;
1820                 }
1821         case SCTP_GET_ADDR_LEN:
1822                 {
1823                         struct sctp_assoc_value *av;
1824
1825                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1826                         error = EINVAL;
1827 #ifdef INET
1828                         if (av->assoc_value == AF_INET) {
1829                                 av->assoc_value = sizeof(struct sockaddr_in);
1830                                 error = 0;
1831                         }
1832 #endif
1833 #ifdef INET6
1834                         if (av->assoc_value == AF_INET6) {
1835                                 av->assoc_value = sizeof(struct sockaddr_in6);
1836                                 error = 0;
1837                         }
1838 #endif
1839                         if (error) {
1840                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1841                         } else {
1842                                 *optsize = sizeof(struct sctp_assoc_value);
1843                         }
1844                         break;
1845                 }
1846         case SCTP_GET_ASSOC_NUMBER:
1847                 {
1848                         uint32_t *value, cnt;
1849
1850                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1851                         SCTP_INP_RLOCK(inp);
1852                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1853                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1854                                 /* Can't do this for a 1-1 socket */
1855                                 error = EINVAL;
1856                                 SCTP_INP_RUNLOCK(inp);
1857                                 break;
1858                         }
1859                         cnt = 0;
1860                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1861                                 cnt++;
1862                         }
1863                         SCTP_INP_RUNLOCK(inp);
1864                         *value = cnt;
1865                         *optsize = sizeof(uint32_t);
1866                         break;
1867                 }
1868         case SCTP_GET_ASSOC_ID_LIST:
1869                 {
1870                         struct sctp_assoc_ids *ids;
1871                         uint32_t at;
1872                         size_t limit;
1873
1874                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1875                         SCTP_INP_RLOCK(inp);
1876                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1877                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1878                                 /* Can't do this for a 1-1 socket */
1879                                 error = EINVAL;
1880                                 SCTP_INP_RUNLOCK(inp);
1881                                 break;
1882                         }
1883                         at = 0;
1884                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1885                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1886                                 if (at < limit) {
1887                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1888                                         if (at == 0) {
1889                                                 error = EINVAL;
1890                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1891                                                 break;
1892                                         }
1893                                 } else {
1894                                         error = EINVAL;
1895                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1896                                         break;
1897                                 }
1898                         }
1899                         SCTP_INP_RUNLOCK(inp);
1900                         if (error == 0) {
1901                                 ids->gaids_number_of_ids = at;
1902                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1903                         }
1904                         break;
1905                 }
1906         case SCTP_CONTEXT:
1907                 {
1908                         struct sctp_assoc_value *av;
1909
1910                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1911                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1912
1913                         if (stcb) {
1914                                 av->assoc_value = stcb->asoc.context;
1915                                 SCTP_TCB_UNLOCK(stcb);
1916                         } else {
1917                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1918                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1919                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1920                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1921                                         SCTP_INP_RLOCK(inp);
1922                                         av->assoc_value = inp->sctp_context;
1923                                         SCTP_INP_RUNLOCK(inp);
1924                                 } else {
1925                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1926                                         error = EINVAL;
1927                                 }
1928                         }
1929                         if (error == 0) {
1930                                 *optsize = sizeof(struct sctp_assoc_value);
1931                         }
1932                         break;
1933                 }
1934         case SCTP_VRF_ID:
1935                 {
1936                         uint32_t *default_vrfid;
1937
1938                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1939                         *default_vrfid = inp->def_vrf_id;
1940                         *optsize = sizeof(uint32_t);
1941                         break;
1942                 }
1943         case SCTP_GET_ASOC_VRF:
1944                 {
1945                         struct sctp_assoc_value *id;
1946
1947                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1948                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1949                         if (stcb == NULL) {
1950                                 error = EINVAL;
1951                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1952                         } else {
1953                                 id->assoc_value = stcb->asoc.vrf_id;
1954                                 SCTP_TCB_UNLOCK(stcb);
1955                                 *optsize = sizeof(struct sctp_assoc_value);
1956                         }
1957                         break;
1958                 }
1959         case SCTP_GET_VRF_IDS:
1960                 {
1961                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1962                         error = EOPNOTSUPP;
1963                         break;
1964                 }
1965         case SCTP_GET_NONCE_VALUES:
1966                 {
1967                         struct sctp_get_nonce_values *gnv;
1968
1969                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1970                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1971
1972                         if (stcb) {
1973                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1974                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1975                                 SCTP_TCB_UNLOCK(stcb);
1976                                 *optsize = sizeof(struct sctp_get_nonce_values);
1977                         } else {
1978                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1979                                 error = ENOTCONN;
1980                         }
1981                         break;
1982                 }
1983         case SCTP_DELAYED_SACK:
1984                 {
1985                         struct sctp_sack_info *sack;
1986
1987                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1988                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1989                         if (stcb) {
1990                                 sack->sack_delay = stcb->asoc.delayed_ack;
1991                                 sack->sack_freq = stcb->asoc.sack_freq;
1992                                 SCTP_TCB_UNLOCK(stcb);
1993                         } else {
1994                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1995                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1996                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1997                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
1998                                         SCTP_INP_RLOCK(inp);
1999                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2000                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2001                                         SCTP_INP_RUNLOCK(inp);
2002                                 } else {
2003                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2004                                         error = EINVAL;
2005                                 }
2006                         }
2007                         if (error == 0) {
2008                                 *optsize = sizeof(struct sctp_sack_info);
2009                         }
2010                         break;
2011                 }
2012         case SCTP_GET_SNDBUF_USE:
2013                 {
2014                         struct sctp_sockstat *ss;
2015
2016                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2017                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2018
2019                         if (stcb) {
2020                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2021                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2022                                     stcb->asoc.size_on_all_streams);
2023                                 SCTP_TCB_UNLOCK(stcb);
2024                                 *optsize = sizeof(struct sctp_sockstat);
2025                         } else {
2026                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2027                                 error = ENOTCONN;
2028                         }
2029                         break;
2030                 }
2031         case SCTP_MAX_BURST:
2032                 {
2033                         struct sctp_assoc_value *av;
2034
2035                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2036                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2037
2038                         if (stcb) {
2039                                 av->assoc_value = stcb->asoc.max_burst;
2040                                 SCTP_TCB_UNLOCK(stcb);
2041                         } else {
2042                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2043                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2044                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2045                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2046                                         SCTP_INP_RLOCK(inp);
2047                                         av->assoc_value = inp->sctp_ep.max_burst;
2048                                         SCTP_INP_RUNLOCK(inp);
2049                                 } else {
2050                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2051                                         error = EINVAL;
2052                                 }
2053                         }
2054                         if (error == 0) {
2055                                 *optsize = sizeof(struct sctp_assoc_value);
2056                         }
2057                         break;
2058                 }
2059         case SCTP_MAXSEG:
2060                 {
2061                         struct sctp_assoc_value *av;
2062                         int ovh;
2063
2064                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2065                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2066
2067                         if (stcb) {
2068                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2069                                 SCTP_TCB_UNLOCK(stcb);
2070                         } else {
2071                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2072                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2073                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2074                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2075                                         SCTP_INP_RLOCK(inp);
2076                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2077                                                 ovh = SCTP_MED_OVERHEAD;
2078                                         } else {
2079                                                 ovh = SCTP_MED_V4_OVERHEAD;
2080                                         }
2081                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2082                                                 av->assoc_value = 0;
2083                                         else
2084                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2085                                         SCTP_INP_RUNLOCK(inp);
2086                                 } else {
2087                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2088                                         error = EINVAL;
2089                                 }
2090                         }
2091                         if (error == 0) {
2092                                 *optsize = sizeof(struct sctp_assoc_value);
2093                         }
2094                         break;
2095                 }
2096         case SCTP_GET_STAT_LOG:
2097                 error = sctp_fill_stat_log(optval, optsize);
2098                 break;
2099         case SCTP_EVENTS:
2100                 {
2101                         struct sctp_event_subscribe *events;
2102
2103                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2104                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2105                         SCTP_INP_RLOCK(inp);
2106                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2107                                 events->sctp_data_io_event = 1;
2108
2109                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2110                                 events->sctp_association_event = 1;
2111
2112                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2113                                 events->sctp_address_event = 1;
2114
2115                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2116                                 events->sctp_send_failure_event = 1;
2117
2118                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2119                                 events->sctp_peer_error_event = 1;
2120
2121                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2122                                 events->sctp_shutdown_event = 1;
2123
2124                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2125                                 events->sctp_partial_delivery_event = 1;
2126
2127                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2128                                 events->sctp_adaptation_layer_event = 1;
2129
2130                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2131                                 events->sctp_authentication_event = 1;
2132
2133                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2134                                 events->sctp_sender_dry_event = 1;
2135
2136                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2137                                 events->sctp_stream_reset_event = 1;
2138                         SCTP_INP_RUNLOCK(inp);
2139                         *optsize = sizeof(struct sctp_event_subscribe);
2140                         break;
2141                 }
2142         case SCTP_ADAPTATION_LAYER:
2143                 {
2144                         uint32_t *value;
2145
2146                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2147
2148                         SCTP_INP_RLOCK(inp);
2149                         *value = inp->sctp_ep.adaptation_layer_indicator;
2150                         SCTP_INP_RUNLOCK(inp);
2151                         *optsize = sizeof(uint32_t);
2152                         break;
2153                 }
2154         case SCTP_SET_INITIAL_DBG_SEQ:
2155                 {
2156                         uint32_t *value;
2157
2158                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2159                         SCTP_INP_RLOCK(inp);
2160                         *value = inp->sctp_ep.initial_sequence_debug;
2161                         SCTP_INP_RUNLOCK(inp);
2162                         *optsize = sizeof(uint32_t);
2163                         break;
2164                 }
2165         case SCTP_GET_LOCAL_ADDR_SIZE:
2166                 {
2167                         uint32_t *value;
2168
2169                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2170                         SCTP_INP_RLOCK(inp);
2171                         *value = sctp_count_max_addresses(inp);
2172                         SCTP_INP_RUNLOCK(inp);
2173                         *optsize = sizeof(uint32_t);
2174                         break;
2175                 }
2176         case SCTP_GET_REMOTE_ADDR_SIZE:
2177                 {
2178                         uint32_t *value;
2179                         size_t size;
2180                         struct sctp_nets *net;
2181
2182                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2183                         /* FIXME MT: change to sctp_assoc_value? */
2184                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2185
2186                         if (stcb) {
2187                                 size = 0;
2188                                 /* Count the sizes */
2189                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2190                                         switch (net->ro._l_addr.sa.sa_family) {
2191 #ifdef INET
2192                                         case AF_INET:
2193 #ifdef INET6
2194                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2195                                                         size += sizeof(struct sockaddr_in6);
2196                                                 } else {
2197                                                         size += sizeof(struct sockaddr_in);
2198                                                 }
2199 #else
2200                                                 size += sizeof(struct sockaddr_in);
2201 #endif
2202                                                 break;
2203 #endif
2204 #ifdef INET6
2205                                         case AF_INET6:
2206                                                 size += sizeof(struct sockaddr_in6);
2207                                                 break;
2208 #endif
2209                                         default:
2210                                                 break;
2211                                         }
2212                                 }
2213                                 SCTP_TCB_UNLOCK(stcb);
2214                                 *value = (uint32_t)size;
2215                                 *optsize = sizeof(uint32_t);
2216                         } else {
2217                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2218                                 error = ENOTCONN;
2219                         }
2220                         break;
2221                 }
2222         case SCTP_GET_PEER_ADDRESSES:
2223                 /*
2224                  * Get the address information, an array is passed in to
2225                  * fill up we pack it.
2226                  */
2227                 {
2228                         size_t cpsz, left;
2229                         struct sockaddr *addr;
2230                         struct sctp_nets *net;
2231                         struct sctp_getaddresses *saddr;
2232
2233                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2234                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2235
2236                         if (stcb) {
2237                                 left = *optsize - offsetof(struct sctp_getaddresses, addr);
2238                                 *optsize = offsetof(struct sctp_getaddresses, addr);
2239                                 addr = &saddr->addr[0].sa;
2240
2241                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2242                                         switch (net->ro._l_addr.sa.sa_family) {
2243 #ifdef INET
2244                                         case AF_INET:
2245 #ifdef INET6
2246                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2247                                                         cpsz = sizeof(struct sockaddr_in6);
2248                                                 } else {
2249                                                         cpsz = sizeof(struct sockaddr_in);
2250                                                 }
2251 #else
2252                                                 cpsz = sizeof(struct sockaddr_in);
2253 #endif
2254                                                 break;
2255 #endif
2256 #ifdef INET6
2257                                         case AF_INET6:
2258                                                 cpsz = sizeof(struct sockaddr_in6);
2259                                                 break;
2260 #endif
2261                                         default:
2262                                                 cpsz = 0;
2263                                                 break;
2264                                         }
2265                                         if (cpsz == 0) {
2266                                                 break;
2267                                         }
2268                                         if (left < cpsz) {
2269                                                 /* not enough room. */
2270                                                 break;
2271                                         }
2272 #if defined(INET) && defined(INET6)
2273                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2274                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2275                                                 /* Must map the address */
2276                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2277                                                     (struct sockaddr_in6 *)&addr);
2278                                         } else {
2279                                                 memcpy(addr, &net->ro._l_addr, cpsz);
2280                                         }
2281 #else
2282                                         memcpy(addr, &net->ro._l_addr, cpsz);
2283 #endif
2284                                         ((struct sockaddr_in *)addr)->sin_port = stcb->rport;
2285
2286                                         addr = (struct sockaddr *)((caddr_t)addr + cpsz);
2287                                         left -= cpsz;
2288                                         *optsize += cpsz;
2289                                 }
2290                                 SCTP_TCB_UNLOCK(stcb);
2291                         } else {
2292                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2293                                 error = ENOENT;
2294                         }
2295                         break;
2296                 }
2297         case SCTP_GET_LOCAL_ADDRESSES:
2298                 {
2299                         size_t limit, actual;
2300                         struct sctp_getaddresses *saddr;
2301
2302                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2303                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2304
2305                         limit = *optsize - offsetof(struct sctp_getaddresses, addr);
2306                         actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
2307                         if (stcb) {
2308                                 SCTP_TCB_UNLOCK(stcb);
2309                         }
2310                         *optsize = offsetof(struct sctp_getaddresses, addr) + actual;
2311                         break;
2312                 }
2313         case SCTP_PEER_ADDR_PARAMS:
2314                 {
2315                         struct sctp_paddrparams *paddrp;
2316                         struct sctp_nets *net;
2317                         struct sockaddr *addr;
2318 #if defined(INET) && defined(INET6)
2319                         struct sockaddr_in sin_store;
2320 #endif
2321
2322                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2323                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2324
2325 #if defined(INET) && defined(INET6)
2326                         if (paddrp->spp_address.ss_family == AF_INET6) {
2327                                 struct sockaddr_in6 *sin6;
2328
2329                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2330                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2331                                         in6_sin6_2_sin(&sin_store, sin6);
2332                                         addr = (struct sockaddr *)&sin_store;
2333                                 } else {
2334                                         addr = (struct sockaddr *)&paddrp->spp_address;
2335                                 }
2336                         } else {
2337                                 addr = (struct sockaddr *)&paddrp->spp_address;
2338                         }
2339 #else
2340                         addr = (struct sockaddr *)&paddrp->spp_address;
2341 #endif
2342                         if (stcb != NULL) {
2343                                 net = sctp_findnet(stcb, addr);
2344                         } else {
2345                                 /*
2346                                  * We increment here since
2347                                  * sctp_findassociation_ep_addr() wil do a
2348                                  * decrement if it finds the stcb as long as
2349                                  * the locked tcb (last argument) is NOT a
2350                                  * TCB.. aka NULL.
2351                                  */
2352                                 net = NULL;
2353                                 SCTP_INP_INCR_REF(inp);
2354                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2355                                 if (stcb == NULL) {
2356                                         SCTP_INP_DECR_REF(inp);
2357                                 }
2358                         }
2359                         if ((stcb != NULL) && (net == NULL)) {
2360 #ifdef INET
2361                                 if (addr->sa_family == AF_INET) {
2362                                         struct sockaddr_in *sin;
2363
2364                                         sin = (struct sockaddr_in *)addr;
2365                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2366                                                 error = EINVAL;
2367                                                 SCTP_TCB_UNLOCK(stcb);
2368                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2369                                                 break;
2370                                         }
2371                                 } else
2372 #endif
2373 #ifdef INET6
2374                                 if (addr->sa_family == AF_INET6) {
2375                                         struct sockaddr_in6 *sin6;
2376
2377                                         sin6 = (struct sockaddr_in6 *)addr;
2378                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2379                                                 error = EINVAL;
2380                                                 SCTP_TCB_UNLOCK(stcb);
2381                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2382                                                 break;
2383                                         }
2384                                 } else
2385 #endif
2386                                 {
2387                                         error = EAFNOSUPPORT;
2388                                         SCTP_TCB_UNLOCK(stcb);
2389                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2390                                         break;
2391                                 }
2392                         }
2393
2394                         if (stcb != NULL) {
2395                                 /* Applies to the specific association */
2396                                 paddrp->spp_flags = 0;
2397                                 if (net != NULL) {
2398                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2399                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2400                                         paddrp->spp_pathmtu = net->mtu;
2401                                         switch (net->ro._l_addr.sa.sa_family) {
2402 #ifdef INET
2403                                         case AF_INET:
2404                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2405                                                 break;
2406 #endif
2407 #ifdef INET6
2408                                         case AF_INET6:
2409                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2410                                                 break;
2411 #endif
2412                                         default:
2413                                                 break;
2414                                         }
2415                                         /* get flags for HB */
2416                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2417                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2418                                         } else {
2419                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2420                                         }
2421                                         /* get flags for PMTU */
2422                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2423                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2424                                         } else {
2425                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2426                                         }
2427                                         if (net->dscp & 0x01) {
2428                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2429                                                 paddrp->spp_flags |= SPP_DSCP;
2430                                         }
2431 #ifdef INET6
2432                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2433                                             (net->flowlabel & 0x80000000)) {
2434                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2435                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2436                                         }
2437 #endif
2438                                 } else {
2439                                         /*
2440                                          * No destination so return default
2441                                          * value
2442                                          */
2443                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2444                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2445                                         if (stcb->asoc.default_dscp & 0x01) {
2446                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2447                                                 paddrp->spp_flags |= SPP_DSCP;
2448                                         }
2449 #ifdef INET6
2450                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2451                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2452                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2453                                         }
2454 #endif
2455                                         /* default settings should be these */
2456                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2457                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2458                                         } else {
2459                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2460                                         }
2461                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2462                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2463                                         } else {
2464                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2465                                         }
2466                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2467                                 }
2468                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2469                                 SCTP_TCB_UNLOCK(stcb);
2470                         } else {
2471                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2472                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2473                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2474                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2475                                         /* Use endpoint defaults */
2476                                         SCTP_INP_RLOCK(inp);
2477                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2478                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2479                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2480                                         /* get inp's default */
2481                                         if (inp->sctp_ep.default_dscp & 0x01) {
2482                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2483                                                 paddrp->spp_flags |= SPP_DSCP;
2484                                         }
2485 #ifdef INET6
2486                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2487                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2488                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2489                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2490                                         }
2491 #endif
2492                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2493
2494                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2495                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2496                                         } else {
2497                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2498                                         }
2499                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2500                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2501                                         } else {
2502                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2503                                         }
2504                                         SCTP_INP_RUNLOCK(inp);
2505                                 } else {
2506                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2507                                         error = EINVAL;
2508                                 }
2509                         }
2510                         if (error == 0) {
2511                                 *optsize = sizeof(struct sctp_paddrparams);
2512                         }
2513                         break;
2514                 }
2515         case SCTP_GET_PEER_ADDR_INFO:
2516                 {
2517                         struct sctp_paddrinfo *paddri;
2518                         struct sctp_nets *net;
2519                         struct sockaddr *addr;
2520 #if defined(INET) && defined(INET6)
2521                         struct sockaddr_in sin_store;
2522 #endif
2523
2524                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2525                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2526
2527 #if defined(INET) && defined(INET6)
2528                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2529                                 struct sockaddr_in6 *sin6;
2530
2531                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2532                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2533                                         in6_sin6_2_sin(&sin_store, sin6);
2534                                         addr = (struct sockaddr *)&sin_store;
2535                                 } else {
2536                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2537                                 }
2538                         } else {
2539                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2540                         }
2541 #else
2542                         addr = (struct sockaddr *)&paddri->spinfo_address;
2543 #endif
2544                         if (stcb != NULL) {
2545                                 net = sctp_findnet(stcb, addr);
2546                         } else {
2547                                 /*
2548                                  * We increment here since
2549                                  * sctp_findassociation_ep_addr() wil do a
2550                                  * decrement if it finds the stcb as long as
2551                                  * the locked tcb (last argument) is NOT a
2552                                  * TCB.. aka NULL.
2553                                  */
2554                                 net = NULL;
2555                                 SCTP_INP_INCR_REF(inp);
2556                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2557                                 if (stcb == NULL) {
2558                                         SCTP_INP_DECR_REF(inp);
2559                                 }
2560                         }
2561
2562                         if ((stcb != NULL) && (net != NULL)) {
2563                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2564                                         /* It's unconfirmed */
2565                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2566                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2567                                         /* It's active */
2568                                         paddri->spinfo_state = SCTP_ACTIVE;
2569                                 } else {
2570                                         /* It's inactive */
2571                                         paddri->spinfo_state = SCTP_INACTIVE;
2572                                 }
2573                                 paddri->spinfo_cwnd = net->cwnd;
2574                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2575                                 paddri->spinfo_rto = net->RTO;
2576                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2577                                 paddri->spinfo_mtu = net->mtu;
2578                                 switch (addr->sa_family) {
2579 #if defined(INET)
2580                                 case AF_INET:
2581                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2582                                         break;
2583 #endif
2584 #if defined(INET6)
2585                                 case AF_INET6:
2586                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2587                                         break;
2588 #endif
2589                                 default:
2590                                         break;
2591                                 }
2592                                 SCTP_TCB_UNLOCK(stcb);
2593                                 *optsize = sizeof(struct sctp_paddrinfo);
2594                         } else {
2595                                 if (stcb != NULL) {
2596                                         SCTP_TCB_UNLOCK(stcb);
2597                                 }
2598                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2599                                 error = ENOENT;
2600                         }
2601                         break;
2602                 }
2603         case SCTP_PCB_STATUS:
2604                 {
2605                         struct sctp_pcbinfo *spcb;
2606
2607                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2608                         sctp_fill_pcbinfo(spcb);
2609                         *optsize = sizeof(struct sctp_pcbinfo);
2610                         break;
2611                 }
2612         case SCTP_STATUS:
2613                 {
2614                         struct sctp_nets *net;
2615                         struct sctp_status *sstat;
2616
2617                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2618                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2619
2620                         if (stcb == NULL) {
2621                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2622                                 error = EINVAL;
2623                                 break;
2624                         }
2625                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2626                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2627                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2628                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2629                         /*
2630                          * We can't include chunks that have been passed to
2631                          * the socket layer. Only things in queue.
2632                          */
2633                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2634                             stcb->asoc.cnt_on_all_streams);
2635
2636
2637                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2638                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2639                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2640                         net = stcb->asoc.primary_destination;
2641                         if (net != NULL) {
2642                                 memcpy(&sstat->sstat_primary.spinfo_address,
2643                                     &net->ro._l_addr,
2644                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2645                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2646                                 /*
2647                                  * Again the user can get info from
2648                                  * sctp_constants.h for what the state of
2649                                  * the network is.
2650                                  */
2651                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2652                                         /* It's unconfirmed */
2653                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2654                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2655                                         /* It's active */
2656                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2657                                 } else {
2658                                         /* It's inactive */
2659                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2660                                 }
2661                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2662                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2663                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2664                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2665                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2666 #if defined(INET)
2667                                 case AF_INET:
2668                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2669                                         break;
2670 #endif
2671 #if defined(INET6)
2672                                 case AF_INET6:
2673                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2674                                         break;
2675 #endif
2676                                 default:
2677                                         break;
2678                                 }
2679                         } else {
2680                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2681                         }
2682                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2683                         SCTP_TCB_UNLOCK(stcb);
2684                         *optsize = sizeof(struct sctp_status);
2685                         break;
2686                 }
2687         case SCTP_RTOINFO:
2688                 {
2689                         struct sctp_rtoinfo *srto;
2690
2691                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2692                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2693
2694                         if (stcb) {
2695                                 srto->srto_initial = stcb->asoc.initial_rto;
2696                                 srto->srto_max = stcb->asoc.maxrto;
2697                                 srto->srto_min = stcb->asoc.minrto;
2698                                 SCTP_TCB_UNLOCK(stcb);
2699                         } else {
2700                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2701                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2702                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2703                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2704                                         SCTP_INP_RLOCK(inp);
2705                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2706                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2707                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2708                                         SCTP_INP_RUNLOCK(inp);
2709                                 } else {
2710                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2711                                         error = EINVAL;
2712                                 }
2713                         }
2714                         if (error == 0) {
2715                                 *optsize = sizeof(struct sctp_rtoinfo);
2716                         }
2717                         break;
2718                 }
2719         case SCTP_TIMEOUTS:
2720                 {
2721                         struct sctp_timeouts *stimo;
2722
2723                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2724                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2725
2726                         if (stcb) {
2727                                 stimo->stimo_init = stcb->asoc.timoinit;
2728                                 stimo->stimo_data = stcb->asoc.timodata;
2729                                 stimo->stimo_sack = stcb->asoc.timosack;
2730                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2731                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2732                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2733                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2734                                 SCTP_TCB_UNLOCK(stcb);
2735                                 *optsize = sizeof(struct sctp_timeouts);
2736                         } else {
2737                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2738                                 error = EINVAL;
2739                         }
2740                         break;
2741                 }
2742         case SCTP_ASSOCINFO:
2743                 {
2744                         struct sctp_assocparams *sasoc;
2745
2746                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2747                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2748
2749                         if (stcb) {
2750                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2751                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2752                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2753                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2754                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2755                                 SCTP_TCB_UNLOCK(stcb);
2756                         } else {
2757                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2758                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2759                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2760                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2761                                         SCTP_INP_RLOCK(inp);
2762                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2763                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2764                                         sasoc->sasoc_number_peer_destinations = 0;
2765                                         sasoc->sasoc_peer_rwnd = 0;
2766                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2767                                         SCTP_INP_RUNLOCK(inp);
2768                                 } else {
2769                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2770                                         error = EINVAL;
2771                                 }
2772                         }
2773                         if (error == 0) {
2774                                 *optsize = sizeof(struct sctp_assocparams);
2775                         }
2776                         break;
2777                 }
2778         case SCTP_DEFAULT_SEND_PARAM:
2779                 {
2780                         struct sctp_sndrcvinfo *s_info;
2781
2782                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2783                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2784
2785                         if (stcb) {
2786                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2787                                 SCTP_TCB_UNLOCK(stcb);
2788                         } else {
2789                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2790                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2791                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2792                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2793                                         SCTP_INP_RLOCK(inp);
2794                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2795                                         SCTP_INP_RUNLOCK(inp);
2796                                 } else {
2797                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2798                                         error = EINVAL;
2799                                 }
2800                         }
2801                         if (error == 0) {
2802                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2803                         }
2804                         break;
2805                 }
2806         case SCTP_INITMSG:
2807                 {
2808                         struct sctp_initmsg *sinit;
2809
2810                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2811                         SCTP_INP_RLOCK(inp);
2812                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2813                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2814                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2815                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2816                         SCTP_INP_RUNLOCK(inp);
2817                         *optsize = sizeof(struct sctp_initmsg);
2818                         break;
2819                 }
2820         case SCTP_PRIMARY_ADDR:
2821                 /* we allow a "get" operation on this */
2822                 {
2823                         struct sctp_setprim *ssp;
2824
2825                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2826                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2827
2828                         if (stcb) {
2829                                 union sctp_sockstore *addr;
2830
2831                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2832                                 switch (addr->sa.sa_family) {
2833 #ifdef INET
2834                                 case AF_INET:
2835 #ifdef INET6
2836                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2837                                                 in6_sin_2_v4mapsin6(&addr->sin,
2838                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2839                                         } else {
2840                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2841                                         }
2842 #else
2843                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2844 #endif
2845                                         break;
2846 #endif
2847 #ifdef INET6
2848                                 case AF_INET6:
2849                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2850                                         break;
2851 #endif
2852                                 default:
2853                                         break;
2854                                 }
2855                                 SCTP_TCB_UNLOCK(stcb);
2856                                 *optsize = sizeof(struct sctp_setprim);
2857                         } else {
2858                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2859                                 error = EINVAL;
2860                         }
2861                         break;
2862                 }
2863         case SCTP_HMAC_IDENT:
2864                 {
2865                         struct sctp_hmacalgo *shmac;
2866                         sctp_hmaclist_t *hmaclist;
2867                         uint32_t size;
2868                         int i;
2869
2870                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2871
2872                         SCTP_INP_RLOCK(inp);
2873                         hmaclist = inp->sctp_ep.local_hmacs;
2874                         if (hmaclist == NULL) {
2875                                 /* no HMACs to return */
2876                                 *optsize = sizeof(*shmac);
2877                                 SCTP_INP_RUNLOCK(inp);
2878                                 break;
2879                         }
2880                         /* is there room for all of the hmac ids? */
2881                         size = sizeof(*shmac) + (hmaclist->num_algo *
2882                             sizeof(shmac->shmac_idents[0]));
2883                         if ((size_t)(*optsize) < size) {
2884                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2885                                 error = EINVAL;
2886                                 SCTP_INP_RUNLOCK(inp);
2887                                 break;
2888                         }
2889                         /* copy in the list */
2890                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2891                         for (i = 0; i < hmaclist->num_algo; i++) {
2892                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2893                         }
2894                         SCTP_INP_RUNLOCK(inp);
2895                         *optsize = size;
2896                         break;
2897                 }
2898         case SCTP_AUTH_ACTIVE_KEY:
2899                 {
2900                         struct sctp_authkeyid *scact;
2901
2902                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2903                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2904
2905                         if (stcb) {
2906                                 /* get the active key on the assoc */
2907                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2908                                 SCTP_TCB_UNLOCK(stcb);
2909                         } else {
2910                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2911                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2912                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2913                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2914                                         /* get the endpoint active key */
2915                                         SCTP_INP_RLOCK(inp);
2916                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2917                                         SCTP_INP_RUNLOCK(inp);
2918                                 } else {
2919                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2920                                         error = EINVAL;
2921                                 }
2922                         }
2923                         if (error == 0) {
2924                                 *optsize = sizeof(struct sctp_authkeyid);
2925                         }
2926                         break;
2927                 }
2928         case SCTP_LOCAL_AUTH_CHUNKS:
2929                 {
2930                         struct sctp_authchunks *sac;
2931                         sctp_auth_chklist_t *chklist = NULL;
2932                         size_t size = 0;
2933
2934                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2935                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2936
2937                         if (stcb) {
2938                                 /* get off the assoc */
2939                                 chklist = stcb->asoc.local_auth_chunks;
2940                                 /* is there enough space? */
2941                                 size = sctp_auth_get_chklist_size(chklist);
2942                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2943                                         error = EINVAL;
2944                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2945                                 } else {
2946                                         /* copy in the chunks */
2947                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2948                                         sac->gauth_number_of_chunks = (uint32_t)size;
2949                                         *optsize = sizeof(struct sctp_authchunks) + size;
2950                                 }
2951                                 SCTP_TCB_UNLOCK(stcb);
2952                         } else {
2953                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2954                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2955                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2956                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2957                                         /* get off the endpoint */
2958                                         SCTP_INP_RLOCK(inp);
2959                                         chklist = inp->sctp_ep.local_auth_chunks;
2960                                         /* is there enough space? */
2961                                         size = sctp_auth_get_chklist_size(chklist);
2962                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2963                                                 error = EINVAL;
2964                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2965                                         } else {
2966                                                 /* copy in the chunks */
2967                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2968                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2969                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2970                                         }
2971                                         SCTP_INP_RUNLOCK(inp);
2972                                 } else {
2973                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2974                                         error = EINVAL;
2975                                 }
2976                         }
2977                         break;
2978                 }
2979         case SCTP_PEER_AUTH_CHUNKS:
2980                 {
2981                         struct sctp_authchunks *sac;
2982                         sctp_auth_chklist_t *chklist = NULL;
2983                         size_t size = 0;
2984
2985                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2986                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2987
2988                         if (stcb) {
2989                                 /* get off the assoc */
2990                                 chklist = stcb->asoc.peer_auth_chunks;
2991                                 /* is there enough space? */
2992                                 size = sctp_auth_get_chklist_size(chklist);
2993                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2994                                         error = EINVAL;
2995                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2996                                 } else {
2997                                         /* copy in the chunks */
2998                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2999                                         sac->gauth_number_of_chunks = (uint32_t)size;
3000                                         *optsize = sizeof(struct sctp_authchunks) + size;
3001                                 }
3002                                 SCTP_TCB_UNLOCK(stcb);
3003                         } else {
3004                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3005                                 error = ENOENT;
3006                         }
3007                         break;
3008                 }
3009         case SCTP_EVENT:
3010                 {
3011                         struct sctp_event *event;
3012                         uint32_t event_type;
3013
3014                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3015                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3016
3017                         switch (event->se_type) {
3018                         case SCTP_ASSOC_CHANGE:
3019                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3020                                 break;
3021                         case SCTP_PEER_ADDR_CHANGE:
3022                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3023                                 break;
3024                         case SCTP_REMOTE_ERROR:
3025                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3026                                 break;
3027                         case SCTP_SEND_FAILED:
3028                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3029                                 break;
3030                         case SCTP_SHUTDOWN_EVENT:
3031                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3032                                 break;
3033                         case SCTP_ADAPTATION_INDICATION:
3034                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3035                                 break;
3036                         case SCTP_PARTIAL_DELIVERY_EVENT:
3037                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3038                                 break;
3039                         case SCTP_AUTHENTICATION_EVENT:
3040                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3041                                 break;
3042                         case SCTP_STREAM_RESET_EVENT:
3043                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3044                                 break;
3045                         case SCTP_SENDER_DRY_EVENT:
3046                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3047                                 break;
3048                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3049                                 event_type = 0;
3050                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3051                                 error = ENOTSUP;
3052                                 break;
3053                         case SCTP_ASSOC_RESET_EVENT:
3054                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3055                                 break;
3056                         case SCTP_STREAM_CHANGE_EVENT:
3057                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3058                                 break;
3059                         case SCTP_SEND_FAILED_EVENT:
3060                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3061                                 break;
3062                         default:
3063                                 event_type = 0;
3064                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3065                                 error = EINVAL;
3066                                 break;
3067                         }
3068                         if (event_type > 0) {
3069                                 if (stcb) {
3070                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3071                                 } else {
3072                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3073                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3074                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3075                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3076                                                 SCTP_INP_RLOCK(inp);
3077                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3078                                                 SCTP_INP_RUNLOCK(inp);
3079                                         } else {
3080                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3081                                                 error = EINVAL;
3082                                         }
3083                                 }
3084                         }
3085                         if (stcb != NULL) {
3086                                 SCTP_TCB_UNLOCK(stcb);
3087                         }
3088                         if (error == 0) {
3089                                 *optsize = sizeof(struct sctp_event);
3090                         }
3091                         break;
3092                 }
3093         case SCTP_RECVRCVINFO:
3094                 {
3095                         int onoff;
3096
3097                         if (*optsize < sizeof(int)) {
3098                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3099                                 error = EINVAL;
3100                         } else {
3101                                 SCTP_INP_RLOCK(inp);
3102                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3103                                 SCTP_INP_RUNLOCK(inp);
3104                         }
3105                         if (error == 0) {
3106                                 /* return the option value */
3107                                 *(int *)optval = onoff;
3108                                 *optsize = sizeof(int);
3109                         }
3110                         break;
3111                 }
3112         case SCTP_RECVNXTINFO:
3113                 {
3114                         int onoff;
3115
3116                         if (*optsize < sizeof(int)) {
3117                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3118                                 error = EINVAL;
3119                         } else {
3120                                 SCTP_INP_RLOCK(inp);
3121                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3122                                 SCTP_INP_RUNLOCK(inp);
3123                         }
3124                         if (error == 0) {
3125                                 /* return the option value */
3126                                 *(int *)optval = onoff;
3127                                 *optsize = sizeof(int);
3128                         }
3129                         break;
3130                 }
3131         case SCTP_DEFAULT_SNDINFO:
3132                 {
3133                         struct sctp_sndinfo *info;
3134
3135                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3136                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3137
3138                         if (stcb) {
3139                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3140                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3141                                 info->snd_flags &= 0xfff0;
3142                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3143                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3144                                 SCTP_TCB_UNLOCK(stcb);
3145                         } else {
3146                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3147                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3148                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3149                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3150                                         SCTP_INP_RLOCK(inp);
3151                                         info->snd_sid = inp->def_send.sinfo_stream;
3152                                         info->snd_flags = inp->def_send.sinfo_flags;
3153                                         info->snd_flags &= 0xfff0;
3154                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3155                                         info->snd_context = inp->def_send.sinfo_context;
3156                                         SCTP_INP_RUNLOCK(inp);
3157                                 } else {
3158                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3159                                         error = EINVAL;
3160                                 }
3161                         }
3162                         if (error == 0) {
3163                                 *optsize = sizeof(struct sctp_sndinfo);
3164                         }
3165                         break;
3166                 }
3167         case SCTP_DEFAULT_PRINFO:
3168                 {
3169                         struct sctp_default_prinfo *info;
3170
3171                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3172                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3173
3174                         if (stcb) {
3175                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3176                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3177                                 SCTP_TCB_UNLOCK(stcb);
3178                         } else {
3179                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3180                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3181                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3182                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3183                                         SCTP_INP_RLOCK(inp);
3184                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3185                                         info->pr_value = inp->def_send.sinfo_timetolive;
3186                                         SCTP_INP_RUNLOCK(inp);
3187                                 } else {
3188                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3189                                         error = EINVAL;
3190                                 }
3191                         }
3192                         if (error == 0) {
3193                                 *optsize = sizeof(struct sctp_default_prinfo);
3194                         }
3195                         break;
3196                 }
3197         case SCTP_PEER_ADDR_THLDS:
3198                 {
3199                         struct sctp_paddrthlds *thlds;
3200                         struct sctp_nets *net;
3201                         struct sockaddr *addr;
3202 #if defined(INET) && defined(INET6)
3203                         struct sockaddr_in sin_store;
3204 #endif
3205
3206                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3207                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3208
3209 #if defined(INET) && defined(INET6)
3210                         if (thlds->spt_address.ss_family == AF_INET6) {
3211                                 struct sockaddr_in6 *sin6;
3212
3213                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3214                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3215                                         in6_sin6_2_sin(&sin_store, sin6);
3216                                         addr = (struct sockaddr *)&sin_store;
3217                                 } else {
3218                                         addr = (struct sockaddr *)&thlds->spt_address;
3219                                 }
3220                         } else {
3221                                 addr = (struct sockaddr *)&thlds->spt_address;
3222                         }
3223 #else
3224                         addr = (struct sockaddr *)&thlds->spt_address;
3225 #endif
3226                         if (stcb != NULL) {
3227                                 net = sctp_findnet(stcb, addr);
3228                         } else {
3229                                 /*
3230                                  * We increment here since
3231                                  * sctp_findassociation_ep_addr() wil do a
3232                                  * decrement if it finds the stcb as long as
3233                                  * the locked tcb (last argument) is NOT a
3234                                  * TCB.. aka NULL.
3235                                  */
3236                                 net = NULL;
3237                                 SCTP_INP_INCR_REF(inp);
3238                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3239                                 if (stcb == NULL) {
3240                                         SCTP_INP_DECR_REF(inp);
3241                                 }
3242                         }
3243                         if ((stcb != NULL) && (net == NULL)) {
3244 #ifdef INET
3245                                 if (addr->sa_family == AF_INET) {
3246                                         struct sockaddr_in *sin;
3247
3248                                         sin = (struct sockaddr_in *)addr;
3249                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3250                                                 error = EINVAL;
3251                                                 SCTP_TCB_UNLOCK(stcb);
3252                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3253                                                 break;
3254                                         }
3255                                 } else
3256 #endif
3257 #ifdef INET6
3258                                 if (addr->sa_family == AF_INET6) {
3259                                         struct sockaddr_in6 *sin6;
3260
3261                                         sin6 = (struct sockaddr_in6 *)addr;
3262                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3263                                                 error = EINVAL;
3264                                                 SCTP_TCB_UNLOCK(stcb);
3265                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3266                                                 break;
3267                                         }
3268                                 } else
3269 #endif
3270                                 {
3271                                         error = EAFNOSUPPORT;
3272                                         SCTP_TCB_UNLOCK(stcb);
3273                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3274                                         break;
3275                                 }
3276                         }
3277
3278                         if (stcb != NULL) {
3279                                 if (net != NULL) {
3280                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3281                                         thlds->spt_pathpfthld = net->pf_threshold;
3282                                         thlds->spt_pathcpthld = 0xffff;
3283                                 } else {
3284                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3285                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3286                                         thlds->spt_pathcpthld = 0xffff;
3287                                 }
3288                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3289                                 SCTP_TCB_UNLOCK(stcb);
3290                         } else {
3291                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3292                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3293                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3294                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3295                                         /* Use endpoint defaults */
3296                                         SCTP_INP_RLOCK(inp);
3297                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3298                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3299                                         thlds->spt_pathcpthld = 0xffff;
3300                                         SCTP_INP_RUNLOCK(inp);
3301                                 } else {
3302                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3303                                         error = EINVAL;
3304                                 }
3305                         }
3306                         if (error == 0) {
3307                                 *optsize = sizeof(struct sctp_paddrthlds);
3308                         }
3309                         break;
3310                 }
3311         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3312                 {
3313                         struct sctp_udpencaps *encaps;
3314                         struct sctp_nets *net;
3315                         struct sockaddr *addr;
3316 #if defined(INET) && defined(INET6)
3317                         struct sockaddr_in sin_store;
3318 #endif
3319
3320                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3321                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3322
3323 #if defined(INET) && defined(INET6)
3324                         if (encaps->sue_address.ss_family == AF_INET6) {
3325                                 struct sockaddr_in6 *sin6;
3326
3327                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3328                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3329                                         in6_sin6_2_sin(&sin_store, sin6);
3330                                         addr = (struct sockaddr *)&sin_store;
3331                                 } else {
3332                                         addr = (struct sockaddr *)&encaps->sue_address;
3333                                 }
3334                         } else {
3335                                 addr = (struct sockaddr *)&encaps->sue_address;
3336                         }
3337 #else
3338                         addr = (struct sockaddr *)&encaps->sue_address;
3339 #endif
3340                         if (stcb) {
3341                                 net = sctp_findnet(stcb, addr);
3342                         } else {
3343                                 /*
3344                                  * We increment here since
3345                                  * sctp_findassociation_ep_addr() wil do a
3346                                  * decrement if it finds the stcb as long as
3347                                  * the locked tcb (last argument) is NOT a
3348                                  * TCB.. aka NULL.
3349                                  */
3350                                 net = NULL;
3351                                 SCTP_INP_INCR_REF(inp);
3352                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3353                                 if (stcb == NULL) {
3354                                         SCTP_INP_DECR_REF(inp);
3355                                 }
3356                         }
3357                         if ((stcb != NULL) && (net == NULL)) {
3358 #ifdef INET
3359                                 if (addr->sa_family == AF_INET) {
3360                                         struct sockaddr_in *sin;
3361
3362                                         sin = (struct sockaddr_in *)addr;
3363                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3364                                                 error = EINVAL;
3365                                                 SCTP_TCB_UNLOCK(stcb);
3366                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3367                                                 break;
3368                                         }
3369                                 } else
3370 #endif
3371 #ifdef INET6
3372                                 if (addr->sa_family == AF_INET6) {
3373                                         struct sockaddr_in6 *sin6;
3374
3375                                         sin6 = (struct sockaddr_in6 *)addr;
3376                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3377                                                 error = EINVAL;
3378                                                 SCTP_TCB_UNLOCK(stcb);
3379                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3380                                                 break;
3381                                         }
3382                                 } else
3383 #endif
3384                                 {
3385                                         error = EAFNOSUPPORT;
3386                                         SCTP_TCB_UNLOCK(stcb);
3387                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3388                                         break;
3389                                 }
3390                         }
3391
3392                         if (stcb != NULL) {
3393                                 if (net) {
3394                                         encaps->sue_port = net->port;
3395                                 } else {
3396                                         encaps->sue_port = stcb->asoc.port;
3397                                 }
3398                                 SCTP_TCB_UNLOCK(stcb);
3399                         } else {
3400                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3401                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3402                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3403                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3404                                         SCTP_INP_RLOCK(inp);
3405                                         encaps->sue_port = inp->sctp_ep.port;
3406                                         SCTP_INP_RUNLOCK(inp);
3407                                 } else {
3408                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3409                                         error = EINVAL;
3410                                 }
3411                         }
3412                         if (error == 0) {
3413                                 *optsize = sizeof(struct sctp_udpencaps);
3414                         }
3415                         break;
3416                 }
3417         case SCTP_ECN_SUPPORTED:
3418                 {
3419                         struct sctp_assoc_value *av;
3420
3421                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3422                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3423
3424                         if (stcb) {
3425                                 av->assoc_value = stcb->asoc.ecn_supported;
3426                                 SCTP_TCB_UNLOCK(stcb);
3427                         } else {
3428                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3429                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3430                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3431                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3432                                         SCTP_INP_RLOCK(inp);
3433                                         av->assoc_value = inp->ecn_supported;
3434                                         SCTP_INP_RUNLOCK(inp);
3435                                 } else {
3436                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3437                                         error = EINVAL;
3438                                 }
3439                         }
3440                         if (error == 0) {
3441                                 *optsize = sizeof(struct sctp_assoc_value);
3442                         }
3443                         break;
3444                 }
3445         case SCTP_PR_SUPPORTED:
3446                 {
3447                         struct sctp_assoc_value *av;
3448
3449                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3450                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3451
3452                         if (stcb) {
3453                                 av->assoc_value = stcb->asoc.prsctp_supported;
3454                                 SCTP_TCB_UNLOCK(stcb);
3455                         } else {
3456                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3457                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3458                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3459                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3460                                         SCTP_INP_RLOCK(inp);
3461                                         av->assoc_value = inp->prsctp_supported;
3462                                         SCTP_INP_RUNLOCK(inp);
3463                                 } else {
3464                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3465                                         error = EINVAL;
3466                                 }
3467                         }
3468                         if (error == 0) {
3469                                 *optsize = sizeof(struct sctp_assoc_value);
3470                         }
3471                         break;
3472                 }
3473         case SCTP_AUTH_SUPPORTED:
3474                 {
3475                         struct sctp_assoc_value *av;
3476
3477                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3478                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3479
3480                         if (stcb) {
3481                                 av->assoc_value = stcb->asoc.auth_supported;
3482                                 SCTP_TCB_UNLOCK(stcb);
3483                         } else {
3484                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3485                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3486                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3487                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3488                                         SCTP_INP_RLOCK(inp);
3489                                         av->assoc_value = inp->auth_supported;
3490                                         SCTP_INP_RUNLOCK(inp);
3491                                 } else {
3492                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3493                                         error = EINVAL;
3494                                 }
3495                         }
3496                         if (error == 0) {
3497                                 *optsize = sizeof(struct sctp_assoc_value);
3498                         }
3499                         break;
3500                 }
3501         case SCTP_ASCONF_SUPPORTED:
3502                 {
3503                         struct sctp_assoc_value *av;
3504
3505                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3506                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3507
3508                         if (stcb) {
3509                                 av->assoc_value = stcb->asoc.asconf_supported;
3510                                 SCTP_TCB_UNLOCK(stcb);
3511                         } else {
3512                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3513                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3514                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3515                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3516                                         SCTP_INP_RLOCK(inp);
3517                                         av->assoc_value = inp->asconf_supported;
3518                                         SCTP_INP_RUNLOCK(inp);
3519                                 } else {
3520                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3521                                         error = EINVAL;
3522                                 }
3523                         }
3524                         if (error == 0) {
3525                                 *optsize = sizeof(struct sctp_assoc_value);
3526                         }
3527                         break;
3528                 }
3529         case SCTP_RECONFIG_SUPPORTED:
3530                 {
3531                         struct sctp_assoc_value *av;
3532
3533                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3534                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3535
3536                         if (stcb) {
3537                                 av->assoc_value = stcb->asoc.reconfig_supported;
3538                                 SCTP_TCB_UNLOCK(stcb);
3539                         } else {
3540                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3541                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3542                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3543                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3544                                         SCTP_INP_RLOCK(inp);
3545                                         av->assoc_value = inp->reconfig_supported;
3546                                         SCTP_INP_RUNLOCK(inp);
3547                                 } else {
3548                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3549                                         error = EINVAL;
3550                                 }
3551                         }
3552                         if (error == 0) {
3553                                 *optsize = sizeof(struct sctp_assoc_value);
3554                         }
3555                         break;
3556                 }
3557         case SCTP_NRSACK_SUPPORTED:
3558                 {
3559                         struct sctp_assoc_value *av;
3560
3561                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3562                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3563
3564                         if (stcb) {
3565                                 av->assoc_value = stcb->asoc.nrsack_supported;
3566                                 SCTP_TCB_UNLOCK(stcb);
3567                         } else {
3568                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3569                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3570                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3571                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3572                                         SCTP_INP_RLOCK(inp);
3573                                         av->assoc_value = inp->nrsack_supported;
3574                                         SCTP_INP_RUNLOCK(inp);
3575                                 } else {
3576                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3577                                         error = EINVAL;
3578                                 }
3579                         }
3580                         if (error == 0) {
3581                                 *optsize = sizeof(struct sctp_assoc_value);
3582                         }
3583                         break;
3584                 }
3585         case SCTP_PKTDROP_SUPPORTED:
3586                 {
3587                         struct sctp_assoc_value *av;
3588
3589                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3590                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3591
3592                         if (stcb) {
3593                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3594                                 SCTP_TCB_UNLOCK(stcb);
3595                         } else {
3596                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3597                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3598                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3599                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3600                                         SCTP_INP_RLOCK(inp);
3601                                         av->assoc_value = inp->pktdrop_supported;
3602                                         SCTP_INP_RUNLOCK(inp);
3603                                 } else {
3604                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3605                                         error = EINVAL;
3606                                 }
3607                         }
3608                         if (error == 0) {
3609                                 *optsize = sizeof(struct sctp_assoc_value);
3610                         }
3611                         break;
3612                 }
3613         case SCTP_ENABLE_STREAM_RESET:
3614                 {
3615                         struct sctp_assoc_value *av;
3616
3617                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3618                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3619
3620                         if (stcb) {
3621                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3622                                 SCTP_TCB_UNLOCK(stcb);
3623                         } else {
3624                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3625                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3626                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3627                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3628                                         SCTP_INP_RLOCK(inp);
3629                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3630                                         SCTP_INP_RUNLOCK(inp);
3631                                 } else {
3632                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3633                                         error = EINVAL;
3634                                 }
3635                         }
3636                         if (error == 0) {
3637                                 *optsize = sizeof(struct sctp_assoc_value);
3638                         }
3639                         break;
3640                 }
3641         case SCTP_PR_STREAM_STATUS:
3642                 {
3643                         struct sctp_prstatus *sprstat;
3644                         uint16_t sid;
3645                         uint16_t policy;
3646
3647                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3648                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3649
3650                         sid = sprstat->sprstat_sid;
3651                         policy = sprstat->sprstat_policy;
3652 #if defined(SCTP_DETAILED_STR_STATS)
3653                         if ((stcb != NULL) &&
3654                             (sid < stcb->asoc.streamoutcnt) &&
3655                             (policy != SCTP_PR_SCTP_NONE) &&
3656                             ((policy <= SCTP_PR_SCTP_MAX) ||
3657                             (policy == SCTP_PR_SCTP_ALL))) {
3658                                 if (policy == SCTP_PR_SCTP_ALL) {
3659                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3660                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3661                                 } else {
3662                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3663                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3664                                 }
3665 #else
3666                         if ((stcb != NULL) &&
3667                             (sid < stcb->asoc.streamoutcnt) &&
3668                             (policy == SCTP_PR_SCTP_ALL)) {
3669                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3670                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3671 #endif
3672                         } else {
3673                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3674                                 error = EINVAL;
3675                         }
3676                         if (stcb != NULL) {
3677                                 SCTP_TCB_UNLOCK(stcb);
3678                         }
3679                         if (error == 0) {
3680                                 *optsize = sizeof(struct sctp_prstatus);
3681                         }
3682                         break;
3683                 }
3684         case SCTP_PR_ASSOC_STATUS:
3685                 {
3686                         struct sctp_prstatus *sprstat;
3687                         uint16_t policy;
3688
3689                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3690                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3691
3692                         policy = sprstat->sprstat_policy;
3693                         if ((stcb != NULL) &&
3694                             (policy != SCTP_PR_SCTP_NONE) &&
3695                             ((policy <= SCTP_PR_SCTP_MAX) ||
3696                             (policy == SCTP_PR_SCTP_ALL))) {
3697                                 if (policy == SCTP_PR_SCTP_ALL) {
3698                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3699                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3700                                 } else {
3701                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3702                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3703                                 }
3704                         } else {
3705                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3706                                 error = EINVAL;
3707                         }
3708                         if (stcb != NULL) {
3709                                 SCTP_TCB_UNLOCK(stcb);
3710                         }
3711                         if (error == 0) {
3712                                 *optsize = sizeof(struct sctp_prstatus);
3713                         }
3714                         break;
3715                 }
3716         case SCTP_MAX_CWND:
3717                 {
3718                         struct sctp_assoc_value *av;
3719
3720                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3721                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3722
3723                         if (stcb) {
3724                                 av->assoc_value = stcb->asoc.max_cwnd;
3725                                 SCTP_TCB_UNLOCK(stcb);
3726                         } else {
3727                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3728                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3729                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3730                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3731                                         SCTP_INP_RLOCK(inp);
3732                                         av->assoc_value = inp->max_cwnd;
3733                                         SCTP_INP_RUNLOCK(inp);
3734                                 } else {
3735                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3736                                         error = EINVAL;
3737                                 }
3738                         }
3739                         if (error == 0) {
3740                                 *optsize = sizeof(struct sctp_assoc_value);
3741                         }
3742                         break;
3743                 }
3744         default:
3745                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3746                 error = ENOPROTOOPT;
3747                 break;
3748         }                       /* end switch (sopt->sopt_name) */
3749         if (error) {
3750                 *optsize = 0;
3751         }
3752         return (error);
3753 }
3754
3755 static int
3756 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3757     void *p)
3758 {
3759         int error, set_opt;
3760         uint32_t *mopt;
3761         struct sctp_tcb *stcb = NULL;
3762         struct sctp_inpcb *inp = NULL;
3763         uint32_t vrf_id;
3764
3765         if (optval == NULL) {
3766                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3767                 return (EINVAL);
3768         }
3769         inp = (struct sctp_inpcb *)so->so_pcb;
3770         if (inp == NULL) {
3771                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3772                 return (EINVAL);
3773         }
3774         vrf_id = inp->def_vrf_id;
3775
3776         error = 0;
3777         switch (optname) {
3778         case SCTP_NODELAY:
3779         case SCTP_AUTOCLOSE:
3780         case SCTP_AUTO_ASCONF:
3781         case SCTP_EXPLICIT_EOR:
3782         case SCTP_DISABLE_FRAGMENTS:
3783         case SCTP_USE_EXT_RCVINFO:
3784         case SCTP_I_WANT_MAPPED_V4_ADDR:
3785                 /* copy in the option value */
3786                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3787                 set_opt = 0;
3788                 if (error)
3789                         break;
3790                 switch (optname) {
3791                 case SCTP_DISABLE_FRAGMENTS:
3792                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3793                         break;
3794                 case SCTP_AUTO_ASCONF:
3795                         /*
3796                          * NOTE: we don't really support this flag
3797                          */
3798                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3799                                 /* only valid for bound all sockets */
3800                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3801                                     (*mopt != 0)) {
3802                                         /* forbidden by admin */
3803                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3804                                         return (EPERM);
3805                                 }
3806                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3807                         } else {
3808                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3809                                 return (EINVAL);
3810                         }
3811                         break;
3812                 case SCTP_EXPLICIT_EOR:
3813                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3814                         break;
3815                 case SCTP_USE_EXT_RCVINFO:
3816                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3817                         break;
3818                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3819                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3820                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3821                         } else {
3822                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3823                                 return (EINVAL);
3824                         }
3825                         break;
3826                 case SCTP_NODELAY:
3827                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3828                         break;
3829                 case SCTP_AUTOCLOSE:
3830                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3831                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3832                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3833                                 return (EINVAL);
3834                         }
3835                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3836                         /*
3837                          * The value is in ticks. Note this does not effect
3838                          * old associations, only new ones.
3839                          */
3840                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3841                         break;
3842                 }
3843                 SCTP_INP_WLOCK(inp);
3844                 if (*mopt != 0) {
3845                         sctp_feature_on(inp, set_opt);
3846                 } else {
3847                         sctp_feature_off(inp, set_opt);
3848                 }
3849                 SCTP_INP_WUNLOCK(inp);
3850                 break;
3851         case SCTP_REUSE_PORT:
3852                 {
3853                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3854                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3855                                 /* Can't set it after we are bound */
3856                                 error = EINVAL;
3857                                 break;
3858                         }
3859                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3860                                 /* Can't do this for a 1-m socket */
3861                                 error = EINVAL;
3862                                 break;
3863                         }
3864                         if (optval)
3865                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3866                         else
3867                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3868                         break;
3869                 }
3870         case SCTP_PARTIAL_DELIVERY_POINT:
3871                 {
3872                         uint32_t *value;
3873
3874                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3875                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3876                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3877                                 error = EINVAL;
3878                                 break;
3879                         }
3880                         inp->partial_delivery_point = *value;
3881                         break;
3882                 }
3883         case SCTP_FRAGMENT_INTERLEAVE:
3884                 /* not yet until we re-write sctp_recvmsg() */
3885                 {
3886                         uint32_t *level;
3887
3888                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3889                         if (*level == SCTP_FRAG_LEVEL_2) {
3890                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3891                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3892                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3893                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3894                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3895                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3896                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3897                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3898
3899                         } else {
3900                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3901                                 error = EINVAL;
3902                         }
3903                         break;
3904                 }
3905         case SCTP_INTERLEAVING_SUPPORTED:
3906                 {
3907                         struct sctp_assoc_value *av;
3908
3909                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3910                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3911
3912                         if (stcb) {
3913                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3914                                 error = EINVAL;
3915                                 SCTP_TCB_UNLOCK(stcb);
3916                         } else {
3917                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3918                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3919                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3920                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3921                                         SCTP_INP_WLOCK(inp);
3922                                         if (av->assoc_value == 0) {
3923                                                 inp->idata_supported = 0;
3924                                         } else {
3925                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3926                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3927                                                         inp->idata_supported = 1;
3928                                                 } else {
3929                                                         /*
3930                                                          * Must have Frag
3931                                                          * interleave and
3932                                                          * stream interleave
3933                                                          * on
3934                                                          */
3935                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3936                                                         error = EINVAL;
3937                                                 }
3938                                         }
3939                                         SCTP_INP_WUNLOCK(inp);
3940                                 } else {
3941                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3942                                         error = EINVAL;
3943                                 }
3944                         }
3945                         break;
3946                 }
3947         case SCTP_CMT_ON_OFF:
3948                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3949                         struct sctp_assoc_value *av;
3950
3951                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3952                         if (av->assoc_value > SCTP_CMT_MAX) {
3953                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3954                                 error = EINVAL;
3955                                 break;
3956                         }
3957                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3958                         if (stcb) {
3959                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3960                                 SCTP_TCB_UNLOCK(stcb);
3961                         } else {
3962                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3963                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3964                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3965                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3966                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3967                                         SCTP_INP_WLOCK(inp);
3968                                         inp->sctp_cmt_on_off = av->assoc_value;
3969                                         SCTP_INP_WUNLOCK(inp);
3970                                 }
3971                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3972                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3973                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3974                                         SCTP_INP_RLOCK(inp);
3975                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3976                                                 SCTP_TCB_LOCK(stcb);
3977                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3978                                                 SCTP_TCB_UNLOCK(stcb);
3979                                         }
3980                                         SCTP_INP_RUNLOCK(inp);
3981                                 }
3982                         }
3983                 } else {
3984                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3985                         error = ENOPROTOOPT;
3986                 }
3987                 break;
3988         case SCTP_PLUGGABLE_CC:
3989                 {
3990                         struct sctp_assoc_value *av;
3991                         struct sctp_nets *net;
3992
3993                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3994                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3995                             (av->assoc_value != SCTP_CC_HSTCP) &&
3996                             (av->assoc_value != SCTP_CC_HTCP) &&
3997                             (av->assoc_value != SCTP_CC_RTCC)) {
3998                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3999                                 error = EINVAL;
4000                                 break;
4001                         }
4002                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4003                         if (stcb) {
4004                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4005                                 stcb->asoc.congestion_control_module = av->assoc_value;
4006                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4007                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4008                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4009                                         }
4010                                 }
4011                                 SCTP_TCB_UNLOCK(stcb);
4012                         } else {
4013                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4014                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4015                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4016                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4017                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4018                                         SCTP_INP_WLOCK(inp);
4019                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4020                                         SCTP_INP_WUNLOCK(inp);
4021                                 }
4022                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4023                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4024                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4025                                         SCTP_INP_RLOCK(inp);
4026                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4027                                                 SCTP_TCB_LOCK(stcb);
4028                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4029                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4030                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4031                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4032                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4033                                                         }
4034                                                 }
4035                                                 SCTP_TCB_UNLOCK(stcb);
4036                                         }
4037                                         SCTP_INP_RUNLOCK(inp);
4038                                 }
4039                         }
4040                         break;
4041                 }
4042         case SCTP_CC_OPTION:
4043                 {
4044                         struct sctp_cc_option *cc_opt;
4045
4046                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4047                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4048                         if (stcb == NULL) {
4049                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4050                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4051                                         SCTP_INP_RLOCK(inp);
4052                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4053                                                 SCTP_TCB_LOCK(stcb);
4054                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4055                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4056                                                 }
4057                                                 SCTP_TCB_UNLOCK(stcb);
4058                                         }
4059                                         SCTP_INP_RUNLOCK(inp);
4060                                 } else {
4061                                         error = EINVAL;
4062                                 }
4063                         } else {
4064                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4065                                         error = ENOTSUP;
4066                                 } else {
4067                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4068                                             cc_opt);
4069                                 }
4070                                 SCTP_TCB_UNLOCK(stcb);
4071                         }
4072                         break;
4073                 }
4074         case SCTP_PLUGGABLE_SS:
4075                 {
4076                         struct sctp_assoc_value *av;
4077
4078                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4079                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4080                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4081                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4082                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4083                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4084                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4085                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4086                                 error = EINVAL;
4087                                 break;
4088                         }
4089                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4090                         if (stcb) {
4091                                 SCTP_TCB_SEND_LOCK(stcb);
4092                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4093                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4094                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4095                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4096                                 SCTP_TCB_SEND_UNLOCK(stcb);
4097                                 SCTP_TCB_UNLOCK(stcb);
4098                         } else {
4099                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4100                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4101                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4102                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4103                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4104                                         SCTP_INP_WLOCK(inp);
4105                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4106                                         SCTP_INP_WUNLOCK(inp);
4107                                 }
4108                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4109                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4110                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4111                                         SCTP_INP_RLOCK(inp);
4112                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4113                                                 SCTP_TCB_LOCK(stcb);
4114                                                 SCTP_TCB_SEND_LOCK(stcb);
4115                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4116                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4117                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4118                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4119                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4120                                                 SCTP_TCB_UNLOCK(stcb);
4121                                         }
4122                                         SCTP_INP_RUNLOCK(inp);
4123                                 }
4124                         }
4125                         break;
4126                 }
4127         case SCTP_SS_VALUE:
4128                 {
4129                         struct sctp_stream_value *av;
4130
4131                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4132                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4133                         if (stcb) {
4134                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4135                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4136                                     av->stream_value) < 0)) {
4137                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4138                                         error = EINVAL;
4139                                 }
4140                                 SCTP_TCB_UNLOCK(stcb);
4141                         } else {
4142                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4143                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4144                                         SCTP_INP_RLOCK(inp);
4145                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4146                                                 SCTP_TCB_LOCK(stcb);
4147                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4148                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4149                                                             &stcb->asoc,
4150                                                             &stcb->asoc.strmout[av->stream_id],
4151                                                             av->stream_value);
4152                                                 }
4153                                                 SCTP_TCB_UNLOCK(stcb);
4154                                         }
4155                                         SCTP_INP_RUNLOCK(inp);
4156                                 } else {
4157                                         /*
4158                                          * Can't set stream value without
4159                                          * association
4160                                          */
4161                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4162                                         error = EINVAL;
4163                                 }
4164                         }
4165                         break;
4166                 }
4167         case SCTP_CLR_STAT_LOG:
4168                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4169                 error = EOPNOTSUPP;
4170                 break;
4171         case SCTP_CONTEXT:
4172                 {
4173                         struct sctp_assoc_value *av;
4174
4175                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4176                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4177
4178                         if (stcb) {
4179                                 stcb->asoc.context = av->assoc_value;
4180                                 SCTP_TCB_UNLOCK(stcb);
4181                         } else {
4182                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4183                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4184                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4185                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4186                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4187                                         SCTP_INP_WLOCK(inp);
4188                                         inp->sctp_context = av->assoc_value;
4189                                         SCTP_INP_WUNLOCK(inp);
4190                                 }
4191                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4192                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4193                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4194                                         SCTP_INP_RLOCK(inp);
4195                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4196                                                 SCTP_TCB_LOCK(stcb);
4197                                                 stcb->asoc.context = av->assoc_value;
4198                                                 SCTP_TCB_UNLOCK(stcb);
4199                                         }
4200                                         SCTP_INP_RUNLOCK(inp);
4201                                 }
4202                         }
4203                         break;
4204                 }
4205         case SCTP_VRF_ID:
4206                 {
4207                         uint32_t *default_vrfid;
4208
4209                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4210                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4211                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4212                                 error = EINVAL;
4213                                 break;
4214                         }
4215                         inp->def_vrf_id = *default_vrfid;
4216                         break;
4217                 }
4218         case SCTP_DEL_VRF_ID:
4219                 {
4220                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4221                         error = EOPNOTSUPP;
4222                         break;
4223                 }
4224         case SCTP_ADD_VRF_ID:
4225                 {
4226                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4227                         error = EOPNOTSUPP;
4228                         break;
4229                 }
4230         case SCTP_DELAYED_SACK:
4231                 {
4232                         struct sctp_sack_info *sack;
4233
4234                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4235                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4236                         if (sack->sack_delay) {
4237                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4238                                         error = EINVAL;
4239                                         if (stcb != NULL) {
4240                                                 SCTP_TCB_UNLOCK(stcb);
4241                                         }
4242                                         break;
4243                                 }
4244                         }
4245                         if (stcb) {
4246                                 if (sack->sack_delay) {
4247                                         stcb->asoc.delayed_ack = sack->sack_delay;
4248                                 }
4249                                 if (sack->sack_freq) {
4250                                         stcb->asoc.sack_freq = sack->sack_freq;
4251                                 }
4252                                 SCTP_TCB_UNLOCK(stcb);
4253                         } else {
4254                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4255                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4256                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4257                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4258                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4259                                         SCTP_INP_WLOCK(inp);
4260                                         if (sack->sack_delay) {
4261                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4262                                         }
4263                                         if (sack->sack_freq) {
4264                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4265                                         }
4266                                         SCTP_INP_WUNLOCK(inp);
4267                                 }
4268                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4269                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4270                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4271                                         SCTP_INP_RLOCK(inp);
4272                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4273                                                 SCTP_TCB_LOCK(stcb);
4274                                                 if (sack->sack_delay) {
4275                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4276                                                 }
4277                                                 if (sack->sack_freq) {
4278                                                         stcb->asoc.sack_freq = sack->sack_freq;
4279                                                 }
4280                                                 SCTP_TCB_UNLOCK(stcb);
4281                                         }
4282                                         SCTP_INP_RUNLOCK(inp);
4283                                 }
4284                         }
4285                         break;
4286                 }
4287         case SCTP_AUTH_CHUNK:
4288                 {
4289                         struct sctp_authchunk *sauth;
4290
4291                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4292
4293                         SCTP_INP_WLOCK(inp);
4294                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4295                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4296                                 error = EINVAL;
4297                         } else {
4298                                 inp->auth_supported = 1;
4299                         }
4300                         SCTP_INP_WUNLOCK(inp);
4301                         break;
4302                 }
4303         case SCTP_AUTH_KEY:
4304                 {
4305                         struct sctp_authkey *sca;
4306                         struct sctp_keyhead *shared_keys;
4307                         sctp_sharedkey_t *shared_key;
4308                         sctp_key_t *key = NULL;
4309                         size_t size;
4310
4311                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4312                         if (sca->sca_keylength == 0) {
4313                                 size = optsize - sizeof(struct sctp_authkey);
4314                         } else {
4315                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4316                                         size = sca->sca_keylength;
4317                                 } else {
4318                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4319                                         error = EINVAL;
4320                                         break;
4321                                 }
4322                         }
4323                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4324
4325                         if (stcb) {
4326                                 shared_keys = &stcb->asoc.shared_keys;
4327                                 /* clear the cached keys for this key id */
4328                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4329                                 /*
4330                                  * create the new shared key and
4331                                  * insert/replace it
4332                                  */
4333                                 if (size > 0) {
4334                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4335                                         if (key == NULL) {
4336                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4337                                                 error = ENOMEM;
4338                                                 SCTP_TCB_UNLOCK(stcb);
4339                                                 break;
4340                                         }
4341                                 }
4342                                 shared_key = sctp_alloc_sharedkey();
4343                                 if (shared_key == NULL) {
4344                                         sctp_free_key(key);
4345                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4346                                         error = ENOMEM;
4347                                         SCTP_TCB_UNLOCK(stcb);
4348                                         break;
4349                                 }
4350                                 shared_key->key = key;
4351                                 shared_key->keyid = sca->sca_keynumber;
4352                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4353                                 SCTP_TCB_UNLOCK(stcb);
4354                         } else {
4355                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4356                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4357                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4358                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4359                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4360                                         SCTP_INP_WLOCK(inp);
4361                                         shared_keys = &inp->sctp_ep.shared_keys;
4362                                         /*
4363                                          * clear the cached keys on all
4364                                          * assocs for this key id
4365                                          */
4366                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4367                                         /*
4368                                          * create the new shared key and
4369                                          * insert/replace it
4370                                          */
4371                                         if (size > 0) {
4372                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4373                                                 if (key == NULL) {
4374                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4375                                                         error = ENOMEM;
4376                                                         SCTP_INP_WUNLOCK(inp);
4377                                                         break;
4378                                                 }
4379                                         }
4380                                         shared_key = sctp_alloc_sharedkey();
4381                                         if (shared_key == NULL) {
4382                                                 sctp_free_key(key);
4383                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4384                                                 error = ENOMEM;
4385                                                 SCTP_INP_WUNLOCK(inp);
4386                                                 break;
4387                                         }
4388                                         shared_key->key = key;
4389                                         shared_key->keyid = sca->sca_keynumber;
4390                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4391                                         SCTP_INP_WUNLOCK(inp);
4392                                 }
4393                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4394                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4395                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4396                                         SCTP_INP_RLOCK(inp);
4397                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4398                                                 SCTP_TCB_LOCK(stcb);
4399                                                 shared_keys = &stcb->asoc.shared_keys;
4400                                                 /*
4401                                                  * clear the cached keys for
4402                                                  * this key id
4403                                                  */
4404                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4405                                                 /*
4406                                                  * create the new shared key
4407                                                  * and insert/replace it
4408                                                  */
4409                                                 if (size > 0) {
4410                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4411                                                         if (key == NULL) {
4412                                                                 SCTP_TCB_UNLOCK(stcb);
4413                                                                 continue;
4414                                                         }
4415                                                 }
4416                                                 shared_key = sctp_alloc_sharedkey();
4417                                                 if (shared_key == NULL) {
4418                                                         sctp_free_key(key);
4419                                                         SCTP_TCB_UNLOCK(stcb);
4420                                                         continue;
4421                                                 }
4422                                                 shared_key->key = key;
4423                                                 shared_key->keyid = sca->sca_keynumber;
4424                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4425                                                 SCTP_TCB_UNLOCK(stcb);
4426                                         }
4427                                         SCTP_INP_RUNLOCK(inp);
4428                                 }
4429                         }
4430                         break;
4431                 }
4432         case SCTP_HMAC_IDENT:
4433                 {
4434                         struct sctp_hmacalgo *shmac;
4435                         sctp_hmaclist_t *hmaclist;
4436                         uint16_t hmacid;
4437                         uint32_t i;
4438
4439                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4440                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4441                             (shmac->shmac_number_of_idents > 0xffff)) {
4442                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4443                                 error = EINVAL;
4444                                 break;
4445                         }
4446
4447                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4448                         if (hmaclist == NULL) {
4449                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4450                                 error = ENOMEM;
4451                                 break;
4452                         }
4453                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4454                                 hmacid = shmac->shmac_idents[i];
4455                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4456                                          /* invalid HMACs were found */ ;
4457                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4458                                         error = EINVAL;
4459                                         sctp_free_hmaclist(hmaclist);
4460                                         goto sctp_set_hmac_done;
4461                                 }
4462                         }
4463                         for (i = 0; i < hmaclist->num_algo; i++) {
4464                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4465                                         /* already in list */
4466                                         break;
4467                                 }
4468                         }
4469                         if (i == hmaclist->num_algo) {
4470                                 /* not found in list */
4471                                 sctp_free_hmaclist(hmaclist);
4472                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4473                                 error = EINVAL;
4474                                 break;
4475                         }
4476                         /* set it on the endpoint */
4477                         SCTP_INP_WLOCK(inp);
4478                         if (inp->sctp_ep.local_hmacs)
4479                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4480                         inp->sctp_ep.local_hmacs = hmaclist;
4481                         SCTP_INP_WUNLOCK(inp);
4482         sctp_set_hmac_done:
4483                         break;
4484                 }
4485         case SCTP_AUTH_ACTIVE_KEY:
4486                 {
4487                         struct sctp_authkeyid *scact;
4488
4489                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4490                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4491
4492                         /* set the active key on the right place */
4493                         if (stcb) {
4494                                 /* set the active key on the assoc */
4495                                 if (sctp_auth_setactivekey(stcb,
4496                                     scact->scact_keynumber)) {
4497                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4498                                             SCTP_FROM_SCTP_USRREQ,
4499                                             EINVAL);
4500                                         error = EINVAL;
4501                                 }
4502                                 SCTP_TCB_UNLOCK(stcb);
4503                         } else {
4504                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4505                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4506                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4507                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4508                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4509                                         SCTP_INP_WLOCK(inp);
4510                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4511                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4512                                                 error = EINVAL;
4513                                         }
4514                                         SCTP_INP_WUNLOCK(inp);
4515                                 }
4516                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4517                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4518                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4519                                         SCTP_INP_RLOCK(inp);
4520                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4521                                                 SCTP_TCB_LOCK(stcb);
4522                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4523                                                 SCTP_TCB_UNLOCK(stcb);
4524                                         }
4525                                         SCTP_INP_RUNLOCK(inp);
4526                                 }
4527                         }
4528                         break;
4529                 }
4530         case SCTP_AUTH_DELETE_KEY:
4531                 {
4532                         struct sctp_authkeyid *scdel;
4533
4534                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4535                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4536
4537                         /* delete the key from the right place */
4538                         if (stcb) {
4539                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4541                                         error = EINVAL;
4542                                 }
4543                                 SCTP_TCB_UNLOCK(stcb);
4544                         } else {
4545                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4546                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4547                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4548                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4549                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4550                                         SCTP_INP_WLOCK(inp);
4551                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4552                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4553                                                 error = EINVAL;
4554                                         }
4555                                         SCTP_INP_WUNLOCK(inp);
4556                                 }
4557                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4558                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4559                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4560                                         SCTP_INP_RLOCK(inp);
4561                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4562                                                 SCTP_TCB_LOCK(stcb);
4563                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4564                                                 SCTP_TCB_UNLOCK(stcb);
4565                                         }
4566                                         SCTP_INP_RUNLOCK(inp);
4567                                 }
4568                         }
4569                         break;
4570                 }
4571         case SCTP_AUTH_DEACTIVATE_KEY:
4572                 {
4573                         struct sctp_authkeyid *keyid;
4574
4575                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4576                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4577
4578                         /* deactivate the key from the right place */
4579                         if (stcb) {
4580                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4581                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4582                                         error = EINVAL;
4583                                 }
4584                                 SCTP_TCB_UNLOCK(stcb);
4585                         } else {
4586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4588                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4589                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4590                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4591                                         SCTP_INP_WLOCK(inp);
4592                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4593                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4594                                                 error = EINVAL;
4595                                         }
4596                                         SCTP_INP_WUNLOCK(inp);
4597                                 }
4598                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4599                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4600                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4601                                         SCTP_INP_RLOCK(inp);
4602                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4603                                                 SCTP_TCB_LOCK(stcb);
4604                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4605                                                 SCTP_TCB_UNLOCK(stcb);
4606                                         }
4607                                         SCTP_INP_RUNLOCK(inp);
4608                                 }
4609                         }
4610                         break;
4611                 }
4612         case SCTP_ENABLE_STREAM_RESET:
4613                 {
4614                         struct sctp_assoc_value *av;
4615
4616                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4617                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4618                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4619                                 error = EINVAL;
4620                                 break;
4621                         }
4622                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4623                         if (stcb) {
4624                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4625                                 SCTP_TCB_UNLOCK(stcb);
4626                         } else {
4627                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4628                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4629                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4630                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4631                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4632                                         SCTP_INP_WLOCK(inp);
4633                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4634                                         SCTP_INP_WUNLOCK(inp);
4635                                 }
4636                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4637                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4638                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4639                                         SCTP_INP_RLOCK(inp);
4640                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4641                                                 SCTP_TCB_LOCK(stcb);
4642                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4643                                                 SCTP_TCB_UNLOCK(stcb);
4644                                         }
4645                                         SCTP_INP_RUNLOCK(inp);
4646                                 }
4647
4648                         }
4649                         break;
4650                 }
4651         case SCTP_RESET_STREAMS:
4652                 {
4653                         struct sctp_reset_streams *strrst;
4654                         int i, send_out = 0;
4655                         int send_in = 0;
4656
4657                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4658                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4659                         if (stcb == NULL) {
4660                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4661                                 error = ENOENT;
4662                                 break;
4663                         }
4664                         if (stcb->asoc.reconfig_supported == 0) {
4665                                 /*
4666                                  * Peer does not support the chunk type.
4667                                  */
4668                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4669                                 error = EOPNOTSUPP;
4670                                 SCTP_TCB_UNLOCK(stcb);
4671                                 break;
4672                         }
4673                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4674                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4675                                 error = EINVAL;
4676                                 SCTP_TCB_UNLOCK(stcb);
4677                                 break;
4678                         }
4679                         if (sizeof(struct sctp_reset_streams) +
4680                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4681                                 error = EINVAL;
4682                                 SCTP_TCB_UNLOCK(stcb);
4683                                 break;
4684                         }
4685                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4686                                 send_in = 1;
4687                                 if (stcb->asoc.stream_reset_outstanding) {
4688                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4689                                         error = EALREADY;
4690                                         SCTP_TCB_UNLOCK(stcb);
4691                                         break;
4692                                 }
4693                         }
4694                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4695                                 send_out = 1;
4696                         }
4697                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4698                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4699                                 error = ENOMEM;
4700                                 SCTP_TCB_UNLOCK(stcb);
4701                                 break;
4702                         }
4703                         if ((send_in == 0) && (send_out == 0)) {
4704                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4705                                 error = EINVAL;
4706                                 SCTP_TCB_UNLOCK(stcb);
4707                                 break;
4708                         }
4709                         for (i = 0; i < strrst->srs_number_streams; i++) {
4710                                 if ((send_in) &&
4711                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4712                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4713                                         error = EINVAL;
4714                                         break;
4715                                 }
4716                                 if ((send_out) &&
4717                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4718                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4719                                         error = EINVAL;
4720                                         break;
4721                                 }
4722                         }
4723                         if (error) {
4724                                 SCTP_TCB_UNLOCK(stcb);
4725                                 break;
4726                         }
4727                         if (send_out) {
4728                                 int cnt;
4729                                 uint16_t strm;
4730
4731                                 if (strrst->srs_number_streams) {
4732                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4733                                                 strm = strrst->srs_stream_list[i];
4734                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4735                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4736                                                         cnt++;
4737                                                 }
4738                                         }
4739                                 } else {
4740                                         /* Its all */
4741                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4742                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4743                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4744                                                         cnt++;
4745                                                 }
4746                                         }
4747                                 }
4748                         }
4749                         if (send_in) {
4750                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4751                                     strrst->srs_stream_list,
4752                                     send_in, 0, 0, 0, 0, 0);
4753                         } else {
4754                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4755                         }
4756                         if (error == 0) {
4757                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4758                         } else {
4759                                 /*
4760                                  * For outgoing streams don't report any
4761                                  * problems in sending the request to the
4762                                  * application. XXX: Double check resetting
4763                                  * incoming streams.
4764                                  */
4765                                 error = 0;
4766                         }
4767                         SCTP_TCB_UNLOCK(stcb);
4768                         break;
4769                 }
4770         case SCTP_ADD_STREAMS:
4771                 {
4772                         struct sctp_add_streams *stradd;
4773                         uint8_t addstream = 0;
4774                         uint16_t add_o_strmcnt = 0;
4775                         uint16_t add_i_strmcnt = 0;
4776
4777                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4778                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4779                         if (stcb == NULL) {
4780                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4781                                 error = ENOENT;
4782                                 break;
4783                         }
4784                         if (stcb->asoc.reconfig_supported == 0) {
4785                                 /*
4786                                  * Peer does not support the chunk type.
4787                                  */
4788                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4789                                 error = EOPNOTSUPP;
4790                                 SCTP_TCB_UNLOCK(stcb);
4791                                 break;
4792                         }
4793                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4794                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4795                                 error = EINVAL;
4796                                 SCTP_TCB_UNLOCK(stcb);
4797                                 break;
4798                         }
4799                         if (stcb->asoc.stream_reset_outstanding) {
4800                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4801                                 error = EALREADY;
4802                                 SCTP_TCB_UNLOCK(stcb);
4803                                 break;
4804                         }
4805                         if ((stradd->sas_outstrms == 0) &&
4806                             (stradd->sas_instrms == 0)) {
4807                                 error = EINVAL;
4808                                 goto skip_stuff;
4809                         }
4810                         if (stradd->sas_outstrms) {
4811                                 addstream = 1;
4812                                 /* We allocate here */
4813                                 add_o_strmcnt = stradd->sas_outstrms;
4814                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4815                                         /* You can't have more than 64k */
4816                                         error = EINVAL;
4817                                         goto skip_stuff;
4818                                 }
4819                         }
4820                         if (stradd->sas_instrms) {
4821                                 int cnt;
4822
4823                                 addstream |= 2;
4824                                 /*
4825                                  * We allocate inside
4826                                  * sctp_send_str_reset_req()
4827                                  */
4828                                 add_i_strmcnt = stradd->sas_instrms;
4829                                 cnt = add_i_strmcnt;
4830                                 cnt += stcb->asoc.streamincnt;
4831                                 if (cnt > 0x0000ffff) {
4832                                         /* You can't have more than 64k */
4833                                         error = EINVAL;
4834                                         goto skip_stuff;
4835                                 }
4836                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4837                                         /* More than you are allowed */
4838                                         error = EINVAL;
4839                                         goto skip_stuff;
4840                                 }
4841                         }
4842                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4843                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4844         skip_stuff:
4845                         SCTP_TCB_UNLOCK(stcb);
4846                         break;
4847                 }
4848         case SCTP_RESET_ASSOC:
4849                 {
4850                         int i;
4851                         uint32_t *value;
4852
4853                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4854                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4855                         if (stcb == NULL) {
4856                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4857                                 error = ENOENT;
4858                                 break;
4859                         }
4860                         if (stcb->asoc.reconfig_supported == 0) {
4861                                 /*
4862                                  * Peer does not support the chunk type.
4863                                  */
4864                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4865                                 error = EOPNOTSUPP;
4866                                 SCTP_TCB_UNLOCK(stcb);
4867                                 break;
4868                         }
4869                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4870                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4871                                 error = EINVAL;
4872                                 SCTP_TCB_UNLOCK(stcb);
4873                                 break;
4874                         }
4875                         if (stcb->asoc.stream_reset_outstanding) {
4876                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4877                                 error = EALREADY;
4878                                 SCTP_TCB_UNLOCK(stcb);
4879                                 break;
4880                         }
4881                         /*
4882                          * Is there any data pending in the send or sent
4883                          * queues?
4884                          */
4885                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4886                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4887                 busy_out:
4888                                 error = EBUSY;
4889                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4890                                 SCTP_TCB_UNLOCK(stcb);
4891                                 break;
4892                         }
4893                         /* Do any streams have data queued? */
4894                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4895                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4896                                         goto busy_out;
4897                                 }
4898                         }
4899                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4900                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4901                         SCTP_TCB_UNLOCK(stcb);
4902                         break;
4903                 }
4904         case SCTP_CONNECT_X:
4905                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4906                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4907                         error = EINVAL;
4908                         break;
4909                 }
4910                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4911                 break;
4912         case SCTP_CONNECT_X_DELAYED:
4913                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4914                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4915                         error = EINVAL;
4916                         break;
4917                 }
4918                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4919                 break;
4920         case SCTP_CONNECT_X_COMPLETE:
4921                 {
4922                         struct sockaddr *sa;
4923
4924                         /* FIXME MT: check correct? */
4925                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4926
4927                         /* find tcb */
4928                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4929                                 SCTP_INP_RLOCK(inp);
4930                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4931                                 if (stcb) {
4932                                         SCTP_TCB_LOCK(stcb);
4933                                 }
4934                                 SCTP_INP_RUNLOCK(inp);
4935                         } else {
4936                                 /*
4937                                  * We increment here since
4938                                  * sctp_findassociation_ep_addr() wil do a
4939                                  * decrement if it finds the stcb as long as
4940                                  * the locked tcb (last argument) is NOT a
4941                                  * TCB.. aka NULL.
4942                                  */
4943                                 SCTP_INP_INCR_REF(inp);
4944                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4945                                 if (stcb == NULL) {
4946                                         SCTP_INP_DECR_REF(inp);
4947                                 }
4948                         }
4949
4950                         if (stcb == NULL) {
4951                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4952                                 error = ENOENT;
4953                                 break;
4954                         }
4955                         if (stcb->asoc.delayed_connection == 1) {
4956                                 stcb->asoc.delayed_connection = 0;
4957                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4958                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4959                                     stcb->asoc.primary_destination,
4960                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4961                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4962                         } else {
4963                                 /*
4964                                  * already expired or did not use delayed
4965                                  * connectx
4966                                  */
4967                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4968                                 error = EALREADY;
4969                         }
4970                         SCTP_TCB_UNLOCK(stcb);
4971                         break;
4972                 }
4973         case SCTP_MAX_BURST:
4974                 {
4975                         struct sctp_assoc_value *av;
4976
4977                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4978                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4979
4980                         if (stcb) {
4981                                 stcb->asoc.max_burst = av->assoc_value;
4982                                 SCTP_TCB_UNLOCK(stcb);
4983                         } else {
4984                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4985                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4986                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4987                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4988                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4989                                         SCTP_INP_WLOCK(inp);
4990                                         inp->sctp_ep.max_burst = av->assoc_value;
4991                                         SCTP_INP_WUNLOCK(inp);
4992                                 }
4993                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4994                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4995                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4996                                         SCTP_INP_RLOCK(inp);
4997                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4998                                                 SCTP_TCB_LOCK(stcb);
4999                                                 stcb->asoc.max_burst = av->assoc_value;
5000                                                 SCTP_TCB_UNLOCK(stcb);
5001                                         }
5002                                         SCTP_INP_RUNLOCK(inp);
5003                                 }
5004                         }
5005                         break;
5006                 }
5007         case SCTP_MAXSEG:
5008                 {
5009                         struct sctp_assoc_value *av;
5010                         int ovh;
5011
5012                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
5013                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
5014
5015                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5016                                 ovh = SCTP_MED_OVERHEAD;
5017                         } else {
5018                                 ovh = SCTP_MED_V4_OVERHEAD;
5019                         }
5020                         if (stcb) {
5021                                 if (av->assoc_value) {
5022                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
5023                                 } else {
5024                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5025                                 }
5026                                 SCTP_TCB_UNLOCK(stcb);
5027                         } else {
5028                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5029                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5030                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5031                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
5032                                         SCTP_INP_WLOCK(inp);
5033                                         /*
5034                                          * FIXME MT: I think this is not in
5035                                          * tune with the API ID
5036                                          */
5037                                         if (av->assoc_value) {
5038                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
5039                                         } else {
5040                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5041                                         }
5042                                         SCTP_INP_WUNLOCK(inp);
5043                                 } else {
5044                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5045                                         error = EINVAL;
5046                                 }
5047                         }
5048                         break;
5049                 }
5050         case SCTP_EVENTS:
5051                 {
5052                         struct sctp_event_subscribe *events;
5053
5054                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5055
5056                         SCTP_INP_WLOCK(inp);
5057                         if (events->sctp_data_io_event) {
5058                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5059                         } else {
5060                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5061                         }
5062
5063                         if (events->sctp_association_event) {
5064                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5065                         } else {
5066                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5067                         }
5068
5069                         if (events->sctp_address_event) {
5070                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5071                         } else {
5072                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5073                         }
5074
5075                         if (events->sctp_send_failure_event) {
5076                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5077                         } else {
5078                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5079                         }
5080
5081                         if (events->sctp_peer_error_event) {
5082                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5083                         } else {
5084                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5085                         }
5086
5087                         if (events->sctp_shutdown_event) {
5088                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5089                         } else {
5090                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5091                         }
5092
5093                         if (events->sctp_partial_delivery_event) {
5094                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5095                         } else {
5096                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5097                         }
5098
5099                         if (events->sctp_adaptation_layer_event) {
5100                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5101                         } else {
5102                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5103                         }
5104
5105                         if (events->sctp_authentication_event) {
5106                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5107                         } else {
5108                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5109                         }
5110
5111                         if (events->sctp_sender_dry_event) {
5112                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5113                         } else {
5114                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5115                         }
5116
5117                         if (events->sctp_stream_reset_event) {
5118                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5119                         } else {
5120                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5121                         }
5122                         SCTP_INP_WUNLOCK(inp);
5123
5124                         SCTP_INP_RLOCK(inp);
5125                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5126                                 SCTP_TCB_LOCK(stcb);
5127                                 if (events->sctp_association_event) {
5128                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5129                                 } else {
5130                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5131                                 }
5132                                 if (events->sctp_address_event) {
5133                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5134                                 } else {
5135                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5136                                 }
5137                                 if (events->sctp_send_failure_event) {
5138                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5139                                 } else {
5140                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5141                                 }
5142                                 if (events->sctp_peer_error_event) {
5143                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5144                                 } else {
5145                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5146                                 }
5147                                 if (events->sctp_shutdown_event) {
5148                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5149                                 } else {
5150                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5151                                 }
5152                                 if (events->sctp_partial_delivery_event) {
5153                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5154                                 } else {
5155                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5156                                 }
5157                                 if (events->sctp_adaptation_layer_event) {
5158                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5159                                 } else {
5160                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5161                                 }
5162                                 if (events->sctp_authentication_event) {
5163                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5164                                 } else {
5165                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5166                                 }
5167                                 if (events->sctp_sender_dry_event) {
5168                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5169                                 } else {
5170                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5171                                 }
5172                                 if (events->sctp_stream_reset_event) {
5173                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5174                                 } else {
5175                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5176                                 }
5177                                 SCTP_TCB_UNLOCK(stcb);
5178                         }
5179                         /*
5180                          * Send up the sender dry event only for 1-to-1
5181                          * style sockets.
5182                          */
5183                         if (events->sctp_sender_dry_event) {
5184                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5185                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5186                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5187                                         if (stcb) {
5188                                                 SCTP_TCB_LOCK(stcb);
5189                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5190                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5191                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5192                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5193                                                 }
5194                                                 SCTP_TCB_UNLOCK(stcb);
5195                                         }
5196                                 }
5197                         }
5198                         SCTP_INP_RUNLOCK(inp);
5199                         break;
5200                 }
5201         case SCTP_ADAPTATION_LAYER:
5202                 {
5203                         struct sctp_setadaptation *adap_bits;
5204
5205                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5206                         SCTP_INP_WLOCK(inp);
5207                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5208                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5209                         SCTP_INP_WUNLOCK(inp);
5210                         break;
5211                 }
5212 #ifdef SCTP_DEBUG
5213         case SCTP_SET_INITIAL_DBG_SEQ:
5214                 {
5215                         uint32_t *vvv;
5216
5217                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5218                         SCTP_INP_WLOCK(inp);
5219                         inp->sctp_ep.initial_sequence_debug = *vvv;
5220                         SCTP_INP_WUNLOCK(inp);
5221                         break;
5222                 }
5223 #endif
5224         case SCTP_DEFAULT_SEND_PARAM:
5225                 {
5226                         struct sctp_sndrcvinfo *s_info;
5227
5228                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5229                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5230
5231                         if (stcb) {
5232                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5233                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5234                                 } else {
5235                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5236                                         error = EINVAL;
5237                                 }
5238                                 SCTP_TCB_UNLOCK(stcb);
5239                         } else {
5240                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5241                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5242                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5243                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5244                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5245                                         SCTP_INP_WLOCK(inp);
5246                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5247                                         SCTP_INP_WUNLOCK(inp);
5248                                 }
5249                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5250                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5251                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5252                                         SCTP_INP_RLOCK(inp);
5253                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5254                                                 SCTP_TCB_LOCK(stcb);
5255                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5256                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5257                                                 }
5258                                                 SCTP_TCB_UNLOCK(stcb);
5259                                         }
5260                                         SCTP_INP_RUNLOCK(inp);
5261                                 }
5262                         }
5263                         break;
5264                 }
5265         case SCTP_PEER_ADDR_PARAMS:
5266                 {
5267                         struct sctp_paddrparams *paddrp;
5268                         struct sctp_nets *net;
5269                         struct sockaddr *addr;
5270 #if defined(INET) && defined(INET6)
5271                         struct sockaddr_in sin_store;
5272 #endif
5273
5274                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5275                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5276
5277 #if defined(INET) && defined(INET6)
5278                         if (paddrp->spp_address.ss_family == AF_INET6) {
5279                                 struct sockaddr_in6 *sin6;
5280
5281                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5282                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5283                                         in6_sin6_2_sin(&sin_store, sin6);
5284                                         addr = (struct sockaddr *)&sin_store;
5285                                 } else {
5286                                         addr = (struct sockaddr *)&paddrp->spp_address;
5287                                 }
5288                         } else {
5289                                 addr = (struct sockaddr *)&paddrp->spp_address;
5290                         }
5291 #else
5292                         addr = (struct sockaddr *)&paddrp->spp_address;
5293 #endif
5294                         if (stcb != NULL) {
5295                                 net = sctp_findnet(stcb, addr);
5296                         } else {
5297                                 /*
5298                                  * We increment here since
5299                                  * sctp_findassociation_ep_addr() wil do a
5300                                  * decrement if it finds the stcb as long as
5301                                  * the locked tcb (last argument) is NOT a
5302                                  * TCB.. aka NULL.
5303                                  */
5304                                 net = NULL;
5305                                 SCTP_INP_INCR_REF(inp);
5306                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5307                                     &net, NULL, NULL);
5308                                 if (stcb == NULL) {
5309                                         SCTP_INP_DECR_REF(inp);
5310                                 }
5311                         }
5312                         if ((stcb != NULL) && (net == NULL)) {
5313 #ifdef INET
5314                                 if (addr->sa_family == AF_INET) {
5315
5316                                         struct sockaddr_in *sin;
5317
5318                                         sin = (struct sockaddr_in *)addr;
5319                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5320                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5321                                                 SCTP_TCB_UNLOCK(stcb);
5322                                                 error = EINVAL;
5323                                                 break;
5324                                         }
5325                                 } else
5326 #endif
5327 #ifdef INET6
5328                                 if (addr->sa_family == AF_INET6) {
5329                                         struct sockaddr_in6 *sin6;
5330
5331                                         sin6 = (struct sockaddr_in6 *)addr;
5332                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5333                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5334                                                 SCTP_TCB_UNLOCK(stcb);
5335                                                 error = EINVAL;
5336                                                 break;
5337                                         }
5338                                 } else
5339 #endif
5340                                 {
5341                                         error = EAFNOSUPPORT;
5342                                         SCTP_TCB_UNLOCK(stcb);
5343                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5344                                         break;
5345                                 }
5346                         }
5347                         /* sanity checks */
5348                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5349                                 if (stcb)
5350                                         SCTP_TCB_UNLOCK(stcb);
5351                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5352                                 return (EINVAL);
5353                         }
5354
5355                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5356                                 if (stcb)
5357                                         SCTP_TCB_UNLOCK(stcb);
5358                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5359                                 return (EINVAL);
5360                         }
5361                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5362                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5363                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5364                                 if (stcb)
5365                                         SCTP_TCB_UNLOCK(stcb);
5366                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5367                                 return (EINVAL);
5368                         }
5369
5370                         if (stcb != NULL) {
5371                                 /************************TCB SPECIFIC SET ******************/
5372                                 if (net != NULL) {
5373                                         /************************NET SPECIFIC SET ******************/
5374                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5375                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5376                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5377                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5378                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5379                                                 }
5380                                                 net->dest_state |= SCTP_ADDR_NOHB;
5381                                         }
5382                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5383                                                 if (paddrp->spp_hbinterval) {
5384                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5385                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5386                                                         net->heart_beat_delay = 0;
5387                                                 }
5388                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5389                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5390                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5391                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5392                                         }
5393                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5394                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5395                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5396                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5397                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5398                                                 }
5399                                         }
5400                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5401                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5402                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5403                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5404                                                 }
5405                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5406                                                 net->mtu = paddrp->spp_pathmtu;
5407                                                 switch (net->ro._l_addr.sa.sa_family) {
5408 #ifdef INET
5409                                                 case AF_INET:
5410                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5411                                                         break;
5412 #endif
5413 #ifdef INET6
5414                                                 case AF_INET6:
5415                                                         net->mtu += SCTP_MIN_OVERHEAD;
5416                                                         break;
5417 #endif
5418                                                 default:
5419                                                         break;
5420                                                 }
5421                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5422                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5423                                                 }
5424                                         }
5425                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5426                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5427                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5428                                                 }
5429                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5430                                         }
5431                                         if (paddrp->spp_pathmaxrxt) {
5432                                                 if (net->dest_state & SCTP_ADDR_PF) {
5433                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5434                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5435                                                         }
5436                                                 } else {
5437                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5438                                                             (net->error_count > net->pf_threshold)) {
5439                                                                 net->dest_state |= SCTP_ADDR_PF;
5440                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5441                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5442                                                                     stcb->sctp_ep, stcb, net,
5443                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5444                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5445                                                         }
5446                                                 }
5447                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5448                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5449                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5450                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5451                                                         }
5452                                                 } else {
5453                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5454                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5455                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5456                                                         }
5457                                                 }
5458                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5459                                         }
5460                                         if (paddrp->spp_flags & SPP_DSCP) {
5461                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5462                                                 net->dscp |= 0x01;
5463                                         }
5464 #ifdef INET6
5465                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5466                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5467                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5468                                                         net->flowlabel |= 0x80000000;
5469                                                 }
5470                                         }
5471 #endif
5472                                 } else {
5473                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5474                                         if (paddrp->spp_pathmaxrxt != 0) {
5475                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5476                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5477                                                         if (net->dest_state & SCTP_ADDR_PF) {
5478                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5479                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5480                                                                 }
5481                                                         } else {
5482                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5483                                                                     (net->error_count > net->pf_threshold)) {
5484                                                                         net->dest_state |= SCTP_ADDR_PF;
5485                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5486                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5487                                                                             stcb->sctp_ep, stcb, net,
5488                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5489                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5490                                                                 }
5491                                                         }
5492                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5493                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5494                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5495                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5496                                                                 }
5497                                                         } else {
5498                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5499                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5500                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5501                                                                 }
5502                                                         }
5503                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5504                                                 }
5505                                         }
5506
5507                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5508                                                 if (paddrp->spp_hbinterval != 0) {
5509                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5510                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5511                                                         stcb->asoc.heart_beat_delay = 0;
5512                                                 }
5513                                                 /* Turn back on the timer */
5514                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5515                                                         if (paddrp->spp_hbinterval != 0) {
5516                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5517                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5518                                                                 net->heart_beat_delay = 0;
5519                                                         }
5520                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5521                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5522                                                         }
5523                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5524                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5525                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5526                                                 }
5527                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5528                                         }
5529                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5530                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5531                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5532                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5533                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5534                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5535                                                                             inp, stcb, net,
5536                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5537                                                                 }
5538                                                         }
5539                                                 }
5540                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5541                                         }
5542                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5543                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5544                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5545                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5546                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5547                                                         }
5548                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5549                                                         net->mtu = paddrp->spp_pathmtu;
5550                                                         switch (net->ro._l_addr.sa.sa_family) {
5551 #ifdef INET
5552                                                         case AF_INET:
5553                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5554                                                                 break;
5555 #endif
5556 #ifdef INET6
5557                                                         case AF_INET6:
5558                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5559                                                                 break;
5560 #endif
5561                                                         default:
5562                                                                 break;
5563                                                         }
5564                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5565                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5566                                                         }
5567                                                 }
5568                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5569                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5570                                         }
5571                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5572                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5573                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5574                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5575                                                         }
5576                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5577                                                 }
5578                                                 stcb->asoc.default_mtu = 0;
5579                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5580                                         }
5581                                         if (paddrp->spp_flags & SPP_DSCP) {
5582                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5583                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5584                                                         net->dscp |= 0x01;
5585                                                 }
5586                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5587                                                 stcb->asoc.default_dscp |= 0x01;
5588                                         }
5589 #ifdef INET6
5590                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5591                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5592                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5593                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5594                                                                 net->flowlabel |= 0x80000000;
5595                                                         }
5596                                                 }
5597                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5598                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5599                                         }
5600 #endif
5601                                 }
5602                                 SCTP_TCB_UNLOCK(stcb);
5603                         } else {
5604                                 /************************NO TCB, SET TO default stuff ******************/
5605                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5606                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5607                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5608                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5609                                         SCTP_INP_WLOCK(inp);
5610                                         /*
5611                                          * For the TOS/FLOWLABEL stuff you
5612                                          * set it with the options on the
5613                                          * socket
5614                                          */
5615                                         if (paddrp->spp_pathmaxrxt != 0) {
5616                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5617                                         }
5618
5619                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5620                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5621                                         else if (paddrp->spp_hbinterval != 0) {
5622                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5623                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5624                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5625                                         }
5626
5627                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5628                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5629                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5630                                                 } else if (paddrp->spp_hbinterval) {
5631                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5632                                                 }
5633                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5634                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5635                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5636                                         }
5637                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5638                                                 inp->sctp_ep.default_mtu = 0;
5639                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5640                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5641                                                 inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5642                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5643                                         }
5644                                         if (paddrp->spp_flags & SPP_DSCP) {
5645                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5646                                                 inp->sctp_ep.default_dscp |= 0x01;
5647                                         }
5648 #ifdef INET6
5649                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5650                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5651                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5652                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5653                                                 }
5654                                         }
5655 #endif
5656                                         SCTP_INP_WUNLOCK(inp);
5657                                 } else {
5658                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5659                                         error = EINVAL;
5660                                 }
5661                         }
5662                         break;
5663                 }
5664         case SCTP_RTOINFO:
5665                 {
5666                         struct sctp_rtoinfo *srto;
5667                         uint32_t new_init, new_min, new_max;
5668
5669                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5670                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5671
5672                         if (stcb) {
5673                                 if (srto->srto_initial)
5674                                         new_init = srto->srto_initial;
5675                                 else
5676                                         new_init = stcb->asoc.initial_rto;
5677                                 if (srto->srto_max)
5678                                         new_max = srto->srto_max;
5679                                 else
5680                                         new_max = stcb->asoc.maxrto;
5681                                 if (srto->srto_min)
5682                                         new_min = srto->srto_min;
5683                                 else
5684                                         new_min = stcb->asoc.minrto;
5685                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5686                                         stcb->asoc.initial_rto = new_init;
5687                                         stcb->asoc.maxrto = new_max;
5688                                         stcb->asoc.minrto = new_min;
5689                                 } else {
5690                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5691                                         error = EINVAL;
5692                                 }
5693                                 SCTP_TCB_UNLOCK(stcb);
5694                         } else {
5695                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5696                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5697                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5698                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5699                                         SCTP_INP_WLOCK(inp);
5700                                         if (srto->srto_initial)
5701                                                 new_init = srto->srto_initial;
5702                                         else
5703                                                 new_init = inp->sctp_ep.initial_rto;
5704                                         if (srto->srto_max)
5705                                                 new_max = srto->srto_max;
5706                                         else
5707                                                 new_max = inp->sctp_ep.sctp_maxrto;
5708                                         if (srto->srto_min)
5709                                                 new_min = srto->srto_min;
5710                                         else
5711                                                 new_min = inp->sctp_ep.sctp_minrto;
5712                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5713                                                 inp->sctp_ep.initial_rto = new_init;
5714                                                 inp->sctp_ep.sctp_maxrto = new_max;
5715                                                 inp->sctp_ep.sctp_minrto = new_min;
5716                                         } else {
5717                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5718                                                 error = EINVAL;
5719                                         }
5720                                         SCTP_INP_WUNLOCK(inp);
5721                                 } else {
5722                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5723                                         error = EINVAL;
5724                                 }
5725                         }
5726                         break;
5727                 }
5728         case SCTP_ASSOCINFO:
5729                 {
5730                         struct sctp_assocparams *sasoc;
5731
5732                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5733                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5734                         if (sasoc->sasoc_cookie_life) {
5735                                 /* boundary check the cookie life */
5736                                 if (sasoc->sasoc_cookie_life < 1000)
5737                                         sasoc->sasoc_cookie_life = 1000;
5738                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5739                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5740                                 }
5741                         }
5742                         if (stcb) {
5743                                 if (sasoc->sasoc_asocmaxrxt)
5744                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5745                                 if (sasoc->sasoc_cookie_life) {
5746                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5747                                 }
5748                                 SCTP_TCB_UNLOCK(stcb);
5749                         } else {
5750                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5751                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5752                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5753                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5754                                         SCTP_INP_WLOCK(inp);
5755                                         if (sasoc->sasoc_asocmaxrxt)
5756                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5757                                         if (sasoc->sasoc_cookie_life) {
5758                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5759                                         }
5760                                         SCTP_INP_WUNLOCK(inp);
5761                                 } else {
5762                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5763                                         error = EINVAL;
5764                                 }
5765                         }
5766                         break;
5767                 }
5768         case SCTP_INITMSG:
5769                 {
5770                         struct sctp_initmsg *sinit;
5771
5772                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5773                         SCTP_INP_WLOCK(inp);
5774                         if (sinit->sinit_num_ostreams)
5775                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5776
5777                         if (sinit->sinit_max_instreams)
5778                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5779
5780                         if (sinit->sinit_max_attempts)
5781                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5782
5783                         if (sinit->sinit_max_init_timeo)
5784                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5785                         SCTP_INP_WUNLOCK(inp);
5786                         break;
5787                 }
5788         case SCTP_PRIMARY_ADDR:
5789                 {
5790                         struct sctp_setprim *spa;
5791                         struct sctp_nets *net;
5792                         struct sockaddr *addr;
5793 #if defined(INET) && defined(INET6)
5794                         struct sockaddr_in sin_store;
5795 #endif
5796
5797                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5798                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5799
5800 #if defined(INET) && defined(INET6)
5801                         if (spa->ssp_addr.ss_family == AF_INET6) {
5802                                 struct sockaddr_in6 *sin6;
5803
5804                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5805                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5806                                         in6_sin6_2_sin(&sin_store, sin6);
5807                                         addr = (struct sockaddr *)&sin_store;
5808                                 } else {
5809                                         addr = (struct sockaddr *)&spa->ssp_addr;
5810                                 }
5811                         } else {
5812                                 addr = (struct sockaddr *)&spa->ssp_addr;
5813                         }
5814 #else
5815                         addr = (struct sockaddr *)&spa->ssp_addr;
5816 #endif
5817                         if (stcb != NULL) {
5818                                 net = sctp_findnet(stcb, addr);
5819                         } else {
5820                                 /*
5821                                  * We increment here since
5822                                  * sctp_findassociation_ep_addr() wil do a
5823                                  * decrement if it finds the stcb as long as
5824                                  * the locked tcb (last argument) is NOT a
5825                                  * TCB.. aka NULL.
5826                                  */
5827                                 net = NULL;
5828                                 SCTP_INP_INCR_REF(inp);
5829                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5830                                     &net, NULL, NULL);
5831                                 if (stcb == NULL) {
5832                                         SCTP_INP_DECR_REF(inp);
5833                                 }
5834                         }
5835
5836                         if ((stcb != NULL) && (net != NULL)) {
5837                                 if (net != stcb->asoc.primary_destination) {
5838                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5839                                                 /* Ok we need to set it */
5840                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5841                                                         if ((stcb->asoc.alternate) &&
5842                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5843                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5844                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5845                                                                 stcb->asoc.alternate = NULL;
5846                                                         }
5847                                                 } else {
5848                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5849                                                         error = EINVAL;
5850                                                 }
5851                                         } else {
5852                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5853                                                 error = EINVAL;
5854                                         }
5855                                 }
5856                         } else {
5857                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5858                                 error = EINVAL;
5859                         }
5860                         if (stcb != NULL) {
5861                                 SCTP_TCB_UNLOCK(stcb);
5862                         }
5863                         break;
5864                 }
5865         case SCTP_SET_DYNAMIC_PRIMARY:
5866                 {
5867                         union sctp_sockstore *ss;
5868
5869                         error = priv_check(curthread,
5870                             PRIV_NETINET_RESERVEDPORT);
5871                         if (error)
5872                                 break;
5873
5874                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5875                         /* SUPER USER CHECK? */
5876                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5877                         break;
5878                 }
5879         case SCTP_SET_PEER_PRIMARY_ADDR:
5880                 {
5881                         struct sctp_setpeerprim *sspp;
5882                         struct sockaddr *addr;
5883 #if defined(INET) && defined(INET6)
5884                         struct sockaddr_in sin_store;
5885 #endif
5886
5887                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5888                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5889                         if (stcb != NULL) {
5890                                 struct sctp_ifa *ifa;
5891
5892 #if defined(INET) && defined(INET6)
5893                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5894                                         struct sockaddr_in6 *sin6;
5895
5896                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5897                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5898                                                 in6_sin6_2_sin(&sin_store, sin6);
5899                                                 addr = (struct sockaddr *)&sin_store;
5900                                         } else {
5901                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5902                                         }
5903                                 } else {
5904                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5905                                 }
5906 #else
5907                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5908 #endif
5909                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5910                                 if (ifa == NULL) {
5911                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5912                                         error = EINVAL;
5913                                         goto out_of_it;
5914                                 }
5915                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5916                                         /*
5917                                          * Must validate the ifa found is in
5918                                          * our ep
5919                                          */
5920                                         struct sctp_laddr *laddr;
5921                                         int found = 0;
5922
5923                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5924                                                 if (laddr->ifa == NULL) {
5925                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5926                                                             __func__);
5927                                                         continue;
5928                                                 }
5929                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5930                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5931                                                         continue;
5932                                                 }
5933                                                 if (laddr->ifa == ifa) {
5934                                                         found = 1;
5935                                                         break;
5936                                                 }
5937                                         }
5938                                         if (!found) {
5939                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5940                                                 error = EINVAL;
5941                                                 goto out_of_it;
5942                                         }
5943                                 } else {
5944                                         switch (addr->sa_family) {
5945 #ifdef INET
5946                                         case AF_INET:
5947                                                 {
5948                                                         struct sockaddr_in *sin;
5949
5950                                                         sin = (struct sockaddr_in *)addr;
5951                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5952                                                             &sin->sin_addr) != 0) {
5953                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5954                                                                 error = EINVAL;
5955                                                                 goto out_of_it;
5956                                                         }
5957                                                         break;
5958                                                 }
5959 #endif
5960 #ifdef INET6
5961                                         case AF_INET6:
5962                                                 {
5963                                                         struct sockaddr_in6 *sin6;
5964
5965                                                         sin6 = (struct sockaddr_in6 *)addr;
5966                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5967                                                             &sin6->sin6_addr) != 0) {
5968                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5969                                                                 error = EINVAL;
5970                                                                 goto out_of_it;
5971                                                         }
5972                                                         break;
5973                                                 }
5974 #endif
5975                                         default:
5976                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5977                                                 error = EINVAL;
5978                                                 goto out_of_it;
5979                                         }
5980                                 }
5981                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5982                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5983                                         error = EINVAL;
5984                                 }
5985                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5986                 out_of_it:
5987                                 SCTP_TCB_UNLOCK(stcb);
5988                         } else {
5989                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5990                                 error = EINVAL;
5991                         }
5992                         break;
5993                 }
5994         case SCTP_BINDX_ADD_ADDR:
5995                 {
5996                         struct sockaddr *sa;
5997                         struct thread *td;
5998
5999                         td = (struct thread *)p;
6000                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
6001 #ifdef INET
6002                         if (sa->sa_family == AF_INET) {
6003                                 if (optsize < sizeof(struct sockaddr_in)) {
6004                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6005                                         error = EINVAL;
6006                                         break;
6007                                 }
6008                                 if (td != NULL &&
6009                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6010                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6011                                         break;
6012                                 }
6013                         } else
6014 #endif
6015 #ifdef INET6
6016                         if (sa->sa_family == AF_INET6) {
6017                                 if (optsize < sizeof(struct sockaddr_in6)) {
6018                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6019                                         error = EINVAL;
6020                                         break;
6021                                 }
6022                                 if (td != NULL &&
6023                                     (error = prison_local_ip6(td->td_ucred,
6024                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6025                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6026                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6027                                         break;
6028                                 }
6029                         } else
6030 #endif
6031                         {
6032                                 error = EAFNOSUPPORT;
6033                                 break;
6034                         }
6035                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
6036                         break;
6037                 }
6038         case SCTP_BINDX_REM_ADDR:
6039                 {
6040                         struct sockaddr *sa;
6041                         struct thread *td;
6042
6043                         td = (struct thread *)p;
6044
6045                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
6046 #ifdef INET
6047                         if (sa->sa_family == AF_INET) {
6048                                 if (optsize < sizeof(struct sockaddr_in)) {
6049                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6050                                         error = EINVAL;
6051                                         break;
6052                                 }
6053                                 if (td != NULL &&
6054                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6055                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6056                                         break;
6057                                 }
6058                         } else
6059 #endif
6060 #ifdef INET6
6061                         if (sa->sa_family == AF_INET6) {
6062                                 if (optsize < sizeof(struct sockaddr_in6)) {
6063                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6064                                         error = EINVAL;
6065                                         break;
6066                                 }
6067                                 if (td != NULL &&
6068                                     (error = prison_local_ip6(td->td_ucred,
6069                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6070                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6071                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6072                                         break;
6073                                 }
6074                         } else
6075 #endif
6076                         {
6077                                 error = EAFNOSUPPORT;
6078                                 break;
6079                         }
6080                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6081                         break;
6082                 }
6083         case SCTP_EVENT:
6084                 {
6085                         struct sctp_event *event;
6086                         uint32_t event_type;
6087
6088                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6089                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6090                         switch (event->se_type) {
6091                         case SCTP_ASSOC_CHANGE:
6092                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6093                                 break;
6094                         case SCTP_PEER_ADDR_CHANGE:
6095                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6096                                 break;
6097                         case SCTP_REMOTE_ERROR:
6098                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6099                                 break;
6100                         case SCTP_SEND_FAILED:
6101                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6102                                 break;
6103                         case SCTP_SHUTDOWN_EVENT:
6104                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6105                                 break;
6106                         case SCTP_ADAPTATION_INDICATION:
6107                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6108                                 break;
6109                         case SCTP_PARTIAL_DELIVERY_EVENT:
6110                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6111                                 break;
6112                         case SCTP_AUTHENTICATION_EVENT:
6113                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6114                                 break;
6115                         case SCTP_STREAM_RESET_EVENT:
6116                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6117                                 break;
6118                         case SCTP_SENDER_DRY_EVENT:
6119                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6120                                 break;
6121                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6122                                 event_type = 0;
6123                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6124                                 error = ENOTSUP;
6125                                 break;
6126                         case SCTP_ASSOC_RESET_EVENT:
6127                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6128                                 break;
6129                         case SCTP_STREAM_CHANGE_EVENT:
6130                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6131                                 break;
6132                         case SCTP_SEND_FAILED_EVENT:
6133                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6134                                 break;
6135                         default:
6136                                 event_type = 0;
6137                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6138                                 error = EINVAL;
6139                                 break;
6140                         }
6141                         if (event_type > 0) {
6142                                 if (stcb) {
6143                                         if (event->se_on) {
6144                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6145                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6146                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6147                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6148                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6149                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6150                                                         }
6151                                                 }
6152                                         } else {
6153                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6154                                         }
6155                                         SCTP_TCB_UNLOCK(stcb);
6156                                 } else {
6157                                         /*
6158                                          * We don't want to send up a storm
6159                                          * of events, so return an error for
6160                                          * sender dry events
6161                                          */
6162                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6163                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6164                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6165                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6166                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6167                                                 error = ENOTSUP;
6168                                                 break;
6169                                         }
6170                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6171                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6172                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6173                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6174                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6175                                                 SCTP_INP_WLOCK(inp);
6176                                                 if (event->se_on) {
6177                                                         sctp_feature_on(inp, event_type);
6178                                                 } else {
6179                                                         sctp_feature_off(inp, event_type);
6180                                                 }
6181                                                 SCTP_INP_WUNLOCK(inp);
6182                                         }
6183                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6184                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6185                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6186                                                 SCTP_INP_RLOCK(inp);
6187                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6188                                                         SCTP_TCB_LOCK(stcb);
6189                                                         if (event->se_on) {
6190                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6191                                                         } else {
6192                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6193                                                         }
6194                                                         SCTP_TCB_UNLOCK(stcb);
6195                                                 }
6196                                                 SCTP_INP_RUNLOCK(inp);
6197                                         }
6198                                 }
6199                         } else {
6200                                 if (stcb) {
6201                                         SCTP_TCB_UNLOCK(stcb);
6202                                 }
6203                         }
6204                         break;
6205                 }
6206         case SCTP_RECVRCVINFO:
6207                 {
6208                         int *onoff;
6209
6210                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6211                         SCTP_INP_WLOCK(inp);
6212                         if (*onoff != 0) {
6213                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6214                         } else {
6215                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6216                         }
6217                         SCTP_INP_WUNLOCK(inp);
6218                         break;
6219                 }
6220         case SCTP_RECVNXTINFO:
6221                 {
6222                         int *onoff;
6223
6224                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6225                         SCTP_INP_WLOCK(inp);
6226                         if (*onoff != 0) {
6227                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6228                         } else {
6229                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6230                         }
6231                         SCTP_INP_WUNLOCK(inp);
6232                         break;
6233                 }
6234         case SCTP_DEFAULT_SNDINFO:
6235                 {
6236                         struct sctp_sndinfo *info;
6237                         uint16_t policy;
6238
6239                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6240                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6241
6242                         if (stcb) {
6243                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6244                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6245                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6246                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6247                                         stcb->asoc.def_send.sinfo_flags |= policy;
6248                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6249                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6250                                 } else {
6251                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6252                                         error = EINVAL;
6253                                 }
6254                                 SCTP_TCB_UNLOCK(stcb);
6255                         } else {
6256                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6257                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6258                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6259                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6260                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6261                                         SCTP_INP_WLOCK(inp);
6262                                         inp->def_send.sinfo_stream = info->snd_sid;
6263                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6264                                         inp->def_send.sinfo_flags = info->snd_flags;
6265                                         inp->def_send.sinfo_flags |= policy;
6266                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6267                                         inp->def_send.sinfo_context = info->snd_context;
6268                                         SCTP_INP_WUNLOCK(inp);
6269                                 }
6270                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6271                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6272                                     (info->snd_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                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6277                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6278                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6279                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6280                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6281                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6282                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6283                                                 }
6284                                                 SCTP_TCB_UNLOCK(stcb);
6285                                         }
6286                                         SCTP_INP_RUNLOCK(inp);
6287                                 }
6288                         }
6289                         break;
6290                 }
6291         case SCTP_DEFAULT_PRINFO:
6292                 {
6293                         struct sctp_default_prinfo *info;
6294
6295                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6296                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6297
6298                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6299                                 if (stcb) {
6300                                         SCTP_TCB_UNLOCK(stcb);
6301                                 }
6302                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6303                                 error = EINVAL;
6304                                 break;
6305                         }
6306                         if (stcb) {
6307                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6308                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6309                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6310                                 SCTP_TCB_UNLOCK(stcb);
6311                         } else {
6312                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6313                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6314                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6315                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6316                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6317                                         SCTP_INP_WLOCK(inp);
6318                                         inp->def_send.sinfo_flags &= 0xfff0;
6319                                         inp->def_send.sinfo_flags |= info->pr_policy;
6320                                         inp->def_send.sinfo_timetolive = info->pr_value;
6321                                         SCTP_INP_WUNLOCK(inp);
6322                                 }
6323                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6324                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6325                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6326                                         SCTP_INP_RLOCK(inp);
6327                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6328                                                 SCTP_TCB_LOCK(stcb);
6329                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6330                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6331                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6332                                                 SCTP_TCB_UNLOCK(stcb);
6333                                         }
6334                                         SCTP_INP_RUNLOCK(inp);
6335                                 }
6336                         }
6337                         break;
6338                 }
6339         case SCTP_PEER_ADDR_THLDS:
6340                 /* Applies to the specific association */
6341                 {
6342                         struct sctp_paddrthlds *thlds;
6343                         struct sctp_nets *net;
6344                         struct sockaddr *addr;
6345 #if defined(INET) && defined(INET6)
6346                         struct sockaddr_in sin_store;
6347 #endif
6348
6349                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6350                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6351
6352 #if defined(INET) && defined(INET6)
6353                         if (thlds->spt_address.ss_family == AF_INET6) {
6354                                 struct sockaddr_in6 *sin6;
6355
6356                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6357                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6358                                         in6_sin6_2_sin(&sin_store, sin6);
6359                                         addr = (struct sockaddr *)&sin_store;
6360                                 } else {
6361                                         addr = (struct sockaddr *)&thlds->spt_address;
6362                                 }
6363                         } else {
6364                                 addr = (struct sockaddr *)&thlds->spt_address;
6365                         }
6366 #else
6367                         addr = (struct sockaddr *)&thlds->spt_address;
6368 #endif
6369                         if (stcb != NULL) {
6370                                 net = sctp_findnet(stcb, addr);
6371                         } else {
6372                                 /*
6373                                  * We increment here since
6374                                  * sctp_findassociation_ep_addr() wil do a
6375                                  * decrement if it finds the stcb as long as
6376                                  * the locked tcb (last argument) is NOT a
6377                                  * TCB.. aka NULL.
6378                                  */
6379                                 net = NULL;
6380                                 SCTP_INP_INCR_REF(inp);
6381                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6382                                     &net, NULL, NULL);
6383                                 if (stcb == NULL) {
6384                                         SCTP_INP_DECR_REF(inp);
6385                                 }
6386                         }
6387                         if ((stcb != NULL) && (net == NULL)) {
6388 #ifdef INET
6389                                 if (addr->sa_family == AF_INET) {
6390
6391                                         struct sockaddr_in *sin;
6392
6393                                         sin = (struct sockaddr_in *)addr;
6394                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6395                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6396                                                 SCTP_TCB_UNLOCK(stcb);
6397                                                 error = EINVAL;
6398                                                 break;
6399                                         }
6400                                 } else
6401 #endif
6402 #ifdef INET6
6403                                 if (addr->sa_family == AF_INET6) {
6404                                         struct sockaddr_in6 *sin6;
6405
6406                                         sin6 = (struct sockaddr_in6 *)addr;
6407                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6408                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6409                                                 SCTP_TCB_UNLOCK(stcb);
6410                                                 error = EINVAL;
6411                                                 break;
6412                                         }
6413                                 } else
6414 #endif
6415                                 {
6416                                         error = EAFNOSUPPORT;
6417                                         SCTP_TCB_UNLOCK(stcb);
6418                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6419                                         break;
6420                                 }
6421                         }
6422                         if (thlds->spt_pathcpthld != 0xffff) {
6423                                 if (stcb != NULL) {
6424                                         SCTP_TCB_UNLOCK(stcb);
6425                                 }
6426                                 error = EINVAL;
6427                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6428                                 break;
6429                         }
6430                         if (stcb != NULL) {
6431                                 if (net != NULL) {
6432                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6433                                         net->pf_threshold = thlds->spt_pathpfthld;
6434                                         if (net->dest_state & SCTP_ADDR_PF) {
6435                                                 if ((net->error_count > net->failure_threshold) ||
6436                                                     (net->error_count <= net->pf_threshold)) {
6437                                                         net->dest_state &= ~SCTP_ADDR_PF;
6438                                                 }
6439                                         } else {
6440                                                 if ((net->error_count > net->pf_threshold) &&
6441                                                     (net->error_count <= net->failure_threshold)) {
6442                                                         net->dest_state |= SCTP_ADDR_PF;
6443                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6444                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6445                                                             stcb->sctp_ep, stcb, net,
6446                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6447                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6448                                                 }
6449                                         }
6450                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6451                                                 if (net->error_count > net->failure_threshold) {
6452                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6453                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6454                                                 }
6455                                         } else {
6456                                                 if (net->error_count <= net->failure_threshold) {
6457                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6458                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6459                                                 }
6460                                         }
6461                                 } else {
6462                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6463                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6464                                                 net->pf_threshold = thlds->spt_pathpfthld;
6465                                                 if (net->dest_state & SCTP_ADDR_PF) {
6466                                                         if ((net->error_count > net->failure_threshold) ||
6467                                                             (net->error_count <= net->pf_threshold)) {
6468                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6469                                                         }
6470                                                 } else {
6471                                                         if ((net->error_count > net->pf_threshold) &&
6472                                                             (net->error_count <= net->failure_threshold)) {
6473                                                                 net->dest_state |= SCTP_ADDR_PF;
6474                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6475                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6476                                                                     stcb->sctp_ep, stcb, net,
6477                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6478                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6479                                                         }
6480                                                 }
6481                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6482                                                         if (net->error_count > net->failure_threshold) {
6483                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6484                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6485                                                         }
6486                                                 } else {
6487                                                         if (net->error_count <= net->failure_threshold) {
6488                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6489                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6490                                                         }
6491                                                 }
6492                                         }
6493                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6494                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6495                                 }
6496                                 SCTP_TCB_UNLOCK(stcb);
6497                         } else {
6498                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6499                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6500                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6501                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6502                                         SCTP_INP_WLOCK(inp);
6503                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6504                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6505                                         SCTP_INP_WUNLOCK(inp);
6506                                 } else {
6507                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6508                                         error = EINVAL;
6509                                 }
6510                         }
6511                         break;
6512                 }
6513         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6514                 {
6515                         struct sctp_udpencaps *encaps;
6516                         struct sctp_nets *net;
6517                         struct sockaddr *addr;
6518 #if defined(INET) && defined(INET6)
6519                         struct sockaddr_in sin_store;
6520 #endif
6521
6522                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6523                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6524
6525 #if defined(INET) && defined(INET6)
6526                         if (encaps->sue_address.ss_family == AF_INET6) {
6527                                 struct sockaddr_in6 *sin6;
6528
6529                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6530                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6531                                         in6_sin6_2_sin(&sin_store, sin6);
6532                                         addr = (struct sockaddr *)&sin_store;
6533                                 } else {
6534                                         addr = (struct sockaddr *)&encaps->sue_address;
6535                                 }
6536                         } else {
6537                                 addr = (struct sockaddr *)&encaps->sue_address;
6538                         }
6539 #else
6540                         addr = (struct sockaddr *)&encaps->sue_address;
6541 #endif
6542                         if (stcb != NULL) {
6543                                 net = sctp_findnet(stcb, addr);
6544                         } else {
6545                                 /*
6546                                  * We increment here since
6547                                  * sctp_findassociation_ep_addr() wil do a
6548                                  * decrement if it finds the stcb as long as
6549                                  * the locked tcb (last argument) is NOT a
6550                                  * TCB.. aka NULL.
6551                                  */
6552                                 net = NULL;
6553                                 SCTP_INP_INCR_REF(inp);
6554                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6555                                 if (stcb == NULL) {
6556                                         SCTP_INP_DECR_REF(inp);
6557                                 }
6558                         }
6559                         if ((stcb != NULL) && (net == NULL)) {
6560 #ifdef INET
6561                                 if (addr->sa_family == AF_INET) {
6562
6563                                         struct sockaddr_in *sin;
6564
6565                                         sin = (struct sockaddr_in *)addr;
6566                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6567                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6568                                                 SCTP_TCB_UNLOCK(stcb);
6569                                                 error = EINVAL;
6570                                                 break;
6571                                         }
6572                                 } else
6573 #endif
6574 #ifdef INET6
6575                                 if (addr->sa_family == AF_INET6) {
6576                                         struct sockaddr_in6 *sin6;
6577
6578                                         sin6 = (struct sockaddr_in6 *)addr;
6579                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6580                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6581                                                 SCTP_TCB_UNLOCK(stcb);
6582                                                 error = EINVAL;
6583                                                 break;
6584                                         }
6585                                 } else
6586 #endif
6587                                 {
6588                                         error = EAFNOSUPPORT;
6589                                         SCTP_TCB_UNLOCK(stcb);
6590                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6591                                         break;
6592                                 }
6593                         }
6594
6595                         if (stcb != NULL) {
6596                                 if (net != NULL) {
6597                                         net->port = encaps->sue_port;
6598                                 } else {
6599                                         stcb->asoc.port = encaps->sue_port;
6600                                 }
6601                                 SCTP_TCB_UNLOCK(stcb);
6602                         } else {
6603                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6604                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6605                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6606                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6607                                         SCTP_INP_WLOCK(inp);
6608                                         inp->sctp_ep.port = encaps->sue_port;
6609                                         SCTP_INP_WUNLOCK(inp);
6610                                 } else {
6611                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6612                                         error = EINVAL;
6613                                 }
6614                         }
6615                         break;
6616                 }
6617         case SCTP_ECN_SUPPORTED:
6618                 {
6619                         struct sctp_assoc_value *av;
6620
6621                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6622                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6623
6624                         if (stcb) {
6625                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6626                                 error = EINVAL;
6627                                 SCTP_TCB_UNLOCK(stcb);
6628                         } else {
6629                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6630                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6631                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6632                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6633                                         SCTP_INP_WLOCK(inp);
6634                                         if (av->assoc_value == 0) {
6635                                                 inp->ecn_supported = 0;
6636                                         } else {
6637                                                 inp->ecn_supported = 1;
6638                                         }
6639                                         SCTP_INP_WUNLOCK(inp);
6640                                 } else {
6641                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6642                                         error = EINVAL;
6643                                 }
6644                         }
6645                         break;
6646                 }
6647         case SCTP_PR_SUPPORTED:
6648                 {
6649                         struct sctp_assoc_value *av;
6650
6651                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6652                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6653
6654                         if (stcb) {
6655                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6656                                 error = EINVAL;
6657                                 SCTP_TCB_UNLOCK(stcb);
6658                         } else {
6659                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6660                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6661                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6662                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6663                                         SCTP_INP_WLOCK(inp);
6664                                         if (av->assoc_value == 0) {
6665                                                 inp->prsctp_supported = 0;
6666                                         } else {
6667                                                 inp->prsctp_supported = 1;
6668                                         }
6669                                         SCTP_INP_WUNLOCK(inp);
6670                                 } else {
6671                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6672                                         error = EINVAL;
6673                                 }
6674                         }
6675                         break;
6676                 }
6677         case SCTP_AUTH_SUPPORTED:
6678                 {
6679                         struct sctp_assoc_value *av;
6680
6681                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6682                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6683
6684                         if (stcb) {
6685                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6686                                 error = EINVAL;
6687                                 SCTP_TCB_UNLOCK(stcb);
6688                         } else {
6689                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6690                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6691                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6692                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6693                                         if ((av->assoc_value == 0) &&
6694                                             (inp->asconf_supported == 1)) {
6695                                                 /*
6696                                                  * AUTH is required for
6697                                                  * ASCONF
6698                                                  */
6699                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6700                                                 error = EINVAL;
6701                                         } else {
6702                                                 SCTP_INP_WLOCK(inp);
6703                                                 if (av->assoc_value == 0) {
6704                                                         inp->auth_supported = 0;
6705                                                 } else {
6706                                                         inp->auth_supported = 1;
6707                                                 }
6708                                                 SCTP_INP_WUNLOCK(inp);
6709                                         }
6710                                 } else {
6711                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6712                                         error = EINVAL;
6713                                 }
6714                         }
6715                         break;
6716                 }
6717         case SCTP_ASCONF_SUPPORTED:
6718                 {
6719                         struct sctp_assoc_value *av;
6720
6721                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6722                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6723
6724                         if (stcb) {
6725                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6726                                 error = EINVAL;
6727                                 SCTP_TCB_UNLOCK(stcb);
6728                         } else {
6729                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6730                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6731                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6732                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6733                                         if ((av->assoc_value != 0) &&
6734                                             (inp->auth_supported == 0)) {
6735                                                 /*
6736                                                  * AUTH is required for
6737                                                  * ASCONF
6738                                                  */
6739                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6740                                                 error = EINVAL;
6741                                         } else {
6742                                                 SCTP_INP_WLOCK(inp);
6743                                                 if (av->assoc_value == 0) {
6744                                                         inp->asconf_supported = 0;
6745                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6746                                                             inp->sctp_ep.local_auth_chunks);
6747                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6748                                                             inp->sctp_ep.local_auth_chunks);
6749                                                 } else {
6750                                                         inp->asconf_supported = 1;
6751                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6752                                                             inp->sctp_ep.local_auth_chunks);
6753                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6754                                                             inp->sctp_ep.local_auth_chunks);
6755                                                 }
6756                                                 SCTP_INP_WUNLOCK(inp);
6757                                         }
6758                                 } else {
6759                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6760                                         error = EINVAL;
6761                                 }
6762                         }
6763                         break;
6764                 }
6765         case SCTP_RECONFIG_SUPPORTED:
6766                 {
6767                         struct sctp_assoc_value *av;
6768
6769                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6770                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6771
6772                         if (stcb) {
6773                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6774                                 error = EINVAL;
6775                                 SCTP_TCB_UNLOCK(stcb);
6776                         } else {
6777                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6778                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6779                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6780                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6781                                         SCTP_INP_WLOCK(inp);
6782                                         if (av->assoc_value == 0) {
6783                                                 inp->reconfig_supported = 0;
6784                                         } else {
6785                                                 inp->reconfig_supported = 1;
6786                                         }
6787                                         SCTP_INP_WUNLOCK(inp);
6788                                 } else {
6789                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6790                                         error = EINVAL;
6791                                 }
6792                         }
6793                         break;
6794                 }
6795         case SCTP_NRSACK_SUPPORTED:
6796                 {
6797                         struct sctp_assoc_value *av;
6798
6799                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6800                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6801
6802                         if (stcb) {
6803                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6804                                 error = EINVAL;
6805                                 SCTP_TCB_UNLOCK(stcb);
6806                         } else {
6807                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6808                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6809                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6810                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6811                                         SCTP_INP_WLOCK(inp);
6812                                         if (av->assoc_value == 0) {
6813                                                 inp->nrsack_supported = 0;
6814                                         } else {
6815                                                 inp->nrsack_supported = 1;
6816                                         }
6817                                         SCTP_INP_WUNLOCK(inp);
6818                                 } else {
6819                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6820                                         error = EINVAL;
6821                                 }
6822                         }
6823                         break;
6824                 }
6825         case SCTP_PKTDROP_SUPPORTED:
6826                 {
6827                         struct sctp_assoc_value *av;
6828
6829                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6830                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6831
6832                         if (stcb) {
6833                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6834                                 error = EINVAL;
6835                                 SCTP_TCB_UNLOCK(stcb);
6836                         } else {
6837                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6838                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6839                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6840                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6841                                         SCTP_INP_WLOCK(inp);
6842                                         if (av->assoc_value == 0) {
6843                                                 inp->pktdrop_supported = 0;
6844                                         } else {
6845                                                 inp->pktdrop_supported = 1;
6846                                         }
6847                                         SCTP_INP_WUNLOCK(inp);
6848                                 } else {
6849                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6850                                         error = EINVAL;
6851                                 }
6852                         }
6853                         break;
6854                 }
6855         case SCTP_MAX_CWND:
6856                 {
6857                         struct sctp_assoc_value *av;
6858                         struct sctp_nets *net;
6859
6860                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6861                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6862
6863                         if (stcb) {
6864                                 stcb->asoc.max_cwnd = av->assoc_value;
6865                                 if (stcb->asoc.max_cwnd > 0) {
6866                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6867                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6868                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6869                                                         net->cwnd = stcb->asoc.max_cwnd;
6870                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6871                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6872                                                         }
6873                                                 }
6874                                         }
6875                                 }
6876                                 SCTP_TCB_UNLOCK(stcb);
6877                         } else {
6878                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6879                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6880                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6881                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6882                                         SCTP_INP_WLOCK(inp);
6883                                         inp->max_cwnd = av->assoc_value;
6884                                         SCTP_INP_WUNLOCK(inp);
6885                                 } else {
6886                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6887                                         error = EINVAL;
6888                                 }
6889                         }
6890                         break;
6891                 }
6892         default:
6893                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6894                 error = ENOPROTOOPT;
6895                 break;
6896         }                       /* end switch (opt) */
6897         return (error);
6898 }
6899
6900 int
6901 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6902 {
6903         struct epoch_tracker et;
6904         struct sctp_inpcb *inp;
6905         void *optval = NULL;
6906         void *p;
6907         size_t optsize = 0;
6908         int error = 0;
6909
6910         if ((sopt->sopt_level == SOL_SOCKET) &&
6911             (sopt->sopt_name == SO_SETFIB)) {
6912                 inp = (struct sctp_inpcb *)so->so_pcb;
6913                 if (inp == NULL) {
6914                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6915                         return (EINVAL);
6916                 }
6917                 SCTP_INP_WLOCK(inp);
6918                 inp->fibnum = so->so_fibnum;
6919                 SCTP_INP_WUNLOCK(inp);
6920                 return (0);
6921         }
6922         if (sopt->sopt_level != IPPROTO_SCTP) {
6923                 /* wrong proto level... send back up to IP */
6924 #ifdef INET6
6925                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6926                         error = ip6_ctloutput(so, sopt);
6927 #endif                          /* INET6 */
6928 #if defined(INET) && defined(INET6)
6929                 else
6930 #endif
6931 #ifdef INET
6932                         error = ip_ctloutput(so, sopt);
6933 #endif
6934                 return (error);
6935         }
6936         optsize = sopt->sopt_valsize;
6937         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6938                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6939                 return (ENOBUFS);
6940         }
6941         if (optsize) {
6942                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6943                 if (optval == NULL) {
6944                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6945                         return (ENOBUFS);
6946                 }
6947                 error = sooptcopyin(sopt, optval, optsize, optsize);
6948                 if (error) {
6949                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6950                         goto out;
6951                 }
6952         }
6953         p = (void *)sopt->sopt_td;
6954         if (sopt->sopt_dir == SOPT_SET) {
6955                 NET_EPOCH_ENTER(et);
6956                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6957                 NET_EPOCH_EXIT(et);
6958         } else if (sopt->sopt_dir == SOPT_GET) {
6959                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6960         } else {
6961                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6962                 error = EINVAL;
6963         }
6964         if ((error == 0) && (optval != NULL)) {
6965                 error = sooptcopyout(sopt, optval, optsize);
6966                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6967         } else if (optval != NULL) {
6968                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6969         }
6970 out:
6971         return (error);
6972 }
6973
6974 #ifdef INET
6975 static int
6976 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6977 {
6978         struct epoch_tracker et;
6979         int error = 0;
6980         int create_lock_on = 0;
6981         uint32_t vrf_id;
6982         struct sctp_inpcb *inp;
6983         struct sctp_tcb *stcb = NULL;
6984
6985         inp = (struct sctp_inpcb *)so->so_pcb;
6986         if (inp == NULL) {
6987                 /* I made the same as TCP since we are not setup? */
6988                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6989                 return (ECONNRESET);
6990         }
6991         if (addr == NULL) {
6992                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6993                 return EINVAL;
6994         }
6995
6996         switch (addr->sa_family) {
6997 #ifdef INET6
6998         case AF_INET6:
6999                 {
7000                         struct sockaddr_in6 *sin6;
7001
7002                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
7003                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7004                                 return (EINVAL);
7005                         }
7006                         sin6 = (struct sockaddr_in6 *)addr;
7007                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
7008                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7009                                 return (error);
7010                         }
7011                         break;
7012                 }
7013 #endif
7014 #ifdef INET
7015         case AF_INET:
7016                 {
7017                         struct sockaddr_in *sin;
7018
7019                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
7020                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7021                                 return (EINVAL);
7022                         }
7023                         sin = (struct sockaddr_in *)addr;
7024                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
7025                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7026                                 return (error);
7027                         }
7028                         break;
7029                 }
7030 #endif
7031         default:
7032                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
7033                 return (EAFNOSUPPORT);
7034         }
7035         SCTP_INP_INCR_REF(inp);
7036         SCTP_ASOC_CREATE_LOCK(inp);
7037         create_lock_on = 1;
7038         NET_EPOCH_ENTER(et);
7039
7040         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7041             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7042                 /* Should I really unlock ? */
7043                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7044                 error = EFAULT;
7045                 goto out_now;
7046         }
7047 #ifdef INET6
7048         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7049             (addr->sa_family == AF_INET6)) {
7050                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7051                 error = EINVAL;
7052                 goto out_now;
7053         }
7054 #endif
7055         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
7056             SCTP_PCB_FLAGS_UNBOUND) {
7057                 /* Bind a ephemeral port */
7058                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7059                 if (error) {
7060                         goto out_now;
7061                 }
7062         }
7063         /* Now do we connect? */
7064         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7065             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7066                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7067                 error = EINVAL;
7068                 goto out_now;
7069         }
7070         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7071             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7072                 /* We are already connected AND the TCP model */
7073                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7074                 error = EADDRINUSE;
7075                 goto out_now;
7076         }
7077         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7078                 SCTP_INP_RLOCK(inp);
7079                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7080                 SCTP_INP_RUNLOCK(inp);
7081         } else {
7082                 /*
7083                  * We increment here since sctp_findassociation_ep_addr()
7084                  * will do a decrement if it finds the stcb as long as the
7085                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7086                  */
7087                 SCTP_INP_INCR_REF(inp);
7088                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7089                 if (stcb == NULL) {
7090                         SCTP_INP_DECR_REF(inp);
7091                 } else {
7092                         SCTP_TCB_UNLOCK(stcb);
7093                 }
7094         }
7095         if (stcb != NULL) {
7096                 /* Already have or am bring up an association */
7097                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7098                 error = EALREADY;
7099                 goto out_now;
7100         }
7101
7102         vrf_id = inp->def_vrf_id;
7103         /* We are GOOD to go */
7104         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7105             inp->sctp_ep.pre_open_stream_count,
7106             inp->sctp_ep.port, p,
7107             SCTP_INITIALIZE_AUTH_PARAMS);
7108         if (stcb == NULL) {
7109                 /* Gak! no memory */
7110                 goto out_now;
7111         }
7112         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7113                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7114                 /* Set the connected flag so we can queue data */
7115                 soisconnecting(so);
7116         }
7117         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7118         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7119
7120         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7121         SCTP_TCB_UNLOCK(stcb);
7122 out_now:
7123         NET_EPOCH_EXIT(et);
7124         if (create_lock_on) {
7125                 SCTP_ASOC_CREATE_UNLOCK(inp);
7126         }
7127         SCTP_INP_DECR_REF(inp);
7128         return (error);
7129 }
7130 #endif
7131
7132 int
7133 sctp_listen(struct socket *so, int backlog, struct thread *p)
7134 {
7135         /*
7136          * Note this module depends on the protocol processing being called
7137          * AFTER any socket level flags and backlog are applied to the
7138          * socket. The traditional way that the socket flags are applied is
7139          * AFTER protocol processing. We have made a change to the
7140          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7141          * place if the socket API for SCTP is to work properly.
7142          */
7143
7144         int error = 0;
7145         struct sctp_inpcb *inp;
7146
7147         inp = (struct sctp_inpcb *)so->so_pcb;
7148         if (inp == NULL) {
7149                 /* I made the same as TCP since we are not setup? */
7150                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7151                 return (ECONNRESET);
7152         }
7153         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7154                 /* See if we have a listener */
7155                 struct sctp_inpcb *tinp;
7156                 union sctp_sockstore store;
7157
7158                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7159                         /* not bound all */
7160                         struct sctp_laddr *laddr;
7161
7162                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7163                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
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
7185                                          * its not 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                 } else {
7194                         /* Setup a local addr bound all */
7195                         memset(&store, 0, sizeof(store));
7196 #ifdef INET6
7197                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7198                                 store.sa.sa_family = AF_INET6;
7199                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7200                         }
7201 #endif
7202 #ifdef INET
7203                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7204                                 store.sa.sa_family = AF_INET;
7205                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7206                         }
7207 #endif
7208                         switch (store.sa.sa_family) {
7209 #ifdef INET
7210                         case AF_INET:
7211                                 store.sin.sin_port = inp->sctp_lport;
7212                                 break;
7213 #endif
7214 #ifdef INET6
7215                         case AF_INET6:
7216                                 store.sin6.sin6_port = inp->sctp_lport;
7217                                 break;
7218 #endif
7219                         default:
7220                                 break;
7221                         }
7222                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7223                         if (tinp && (tinp != inp) &&
7224                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7225                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7226                             (SCTP_IS_LISTENING(tinp))) {
7227                                 /*
7228                                  * we have a listener already and its not
7229                                  * this inp.
7230                                  */
7231                                 SCTP_INP_DECR_REF(tinp);
7232                                 return (EADDRINUSE);
7233                         } else if (tinp) {
7234                                 SCTP_INP_DECR_REF(tinp);
7235                         }
7236                 }
7237         }
7238         SCTP_INP_RLOCK(inp);
7239 #ifdef SCTP_LOCK_LOGGING
7240         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7241                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7242         }
7243 #endif
7244         SOCK_LOCK(so);
7245         error = solisten_proto_check(so);
7246         SOCK_UNLOCK(so);
7247         if (error) {
7248                 SCTP_INP_RUNLOCK(inp);
7249                 return (error);
7250         }
7251         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7252             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7253                 /*
7254                  * The unlucky case - We are in the tcp pool with this guy.
7255                  * - Someone else is in the main inp slot. - We must move
7256                  * this guy (the listener) to the main slot - We must then
7257                  * move the guy that was listener to the TCP Pool.
7258                  */
7259                 if (sctp_swap_inpcb_for_listen(inp)) {
7260                         SCTP_INP_RUNLOCK(inp);
7261                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7262                         return (EADDRINUSE);
7263                 }
7264         }
7265
7266         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7267             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7268                 /* We are already connected AND the TCP model */
7269                 SCTP_INP_RUNLOCK(inp);
7270                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7271                 return (EADDRINUSE);
7272         }
7273         SCTP_INP_RUNLOCK(inp);
7274         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7275                 /* We must do a bind. */
7276                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7277                         /* bind error, probably perm */
7278                         return (error);
7279                 }
7280         }
7281         SCTP_INP_WLOCK(inp);
7282         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7283                 SOCK_LOCK(so);
7284                 solisten_proto(so, backlog);
7285                 SOCK_UNLOCK(so);
7286         }
7287         if (backlog > 0) {
7288                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7289         } else {
7290                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7291         }
7292         SCTP_INP_WUNLOCK(inp);
7293         return (error);
7294 }
7295
7296 static int sctp_defered_wakeup_cnt = 0;
7297
7298 int
7299 sctp_accept(struct socket *so, struct sockaddr **addr)
7300 {
7301         struct sctp_tcb *stcb;
7302         struct sctp_inpcb *inp;
7303         union sctp_sockstore store;
7304 #ifdef INET6
7305         int error;
7306 #endif
7307         inp = (struct sctp_inpcb *)so->so_pcb;
7308
7309         if (inp == NULL) {
7310                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7311                 return (ECONNRESET);
7312         }
7313         SCTP_INP_WLOCK(inp);
7314         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7315                 SCTP_INP_WUNLOCK(inp);
7316                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7317                 return (EOPNOTSUPP);
7318         }
7319         if (so->so_state & SS_ISDISCONNECTED) {
7320                 SCTP_INP_WUNLOCK(inp);
7321                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7322                 return (ECONNABORTED);
7323         }
7324         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7325         if (stcb == NULL) {
7326                 SCTP_INP_WUNLOCK(inp);
7327                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7328                 return (ECONNRESET);
7329         }
7330         SCTP_TCB_LOCK(stcb);
7331         store = stcb->asoc.primary_destination->ro._l_addr;
7332         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7333         /* Wake any delayed sleep action */
7334         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7335                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7336                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7337                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7338                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7339                         if (sowriteable(inp->sctp_socket)) {
7340                                 sowwakeup_locked(inp->sctp_socket);
7341                         } else {
7342                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7343                         }
7344                 }
7345                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7346                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7347                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7348                         if (soreadable(inp->sctp_socket)) {
7349                                 sctp_defered_wakeup_cnt++;
7350                                 sorwakeup_locked(inp->sctp_socket);
7351                         } else {
7352                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7353                         }
7354                 }
7355         }
7356         SCTP_INP_WUNLOCK(inp);
7357         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7358                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7359                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7360         } else {
7361                 SCTP_TCB_UNLOCK(stcb);
7362         }
7363         switch (store.sa.sa_family) {
7364 #ifdef INET
7365         case AF_INET:
7366                 {
7367                         struct sockaddr_in *sin;
7368
7369                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7370                         if (sin == NULL)
7371                                 return (ENOMEM);
7372                         sin->sin_family = AF_INET;
7373                         sin->sin_len = sizeof(*sin);
7374                         sin->sin_port = store.sin.sin_port;
7375                         sin->sin_addr = store.sin.sin_addr;
7376                         *addr = (struct sockaddr *)sin;
7377                         break;
7378                 }
7379 #endif
7380 #ifdef INET6
7381         case AF_INET6:
7382                 {
7383                         struct sockaddr_in6 *sin6;
7384
7385                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7386                         if (sin6 == NULL)
7387                                 return (ENOMEM);
7388                         sin6->sin6_family = AF_INET6;
7389                         sin6->sin6_len = sizeof(*sin6);
7390                         sin6->sin6_port = store.sin6.sin6_port;
7391                         sin6->sin6_addr = store.sin6.sin6_addr;
7392                         if ((error = sa6_recoverscope(sin6)) != 0) {
7393                                 SCTP_FREE_SONAME(sin6);
7394                                 return (error);
7395                         }
7396                         *addr = (struct sockaddr *)sin6;
7397                         break;
7398                 }
7399 #endif
7400         default:
7401                 /* TSNH */
7402                 break;
7403         }
7404         return (0);
7405 }
7406
7407 #ifdef INET
7408 int
7409 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7410 {
7411         struct sockaddr_in *sin;
7412         uint32_t vrf_id;
7413         struct sctp_inpcb *inp;
7414         struct sctp_ifa *sctp_ifa;
7415
7416         /*
7417          * Do the malloc first in case it blocks.
7418          */
7419         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7420         if (sin == NULL)
7421                 return (ENOMEM);
7422         sin->sin_family = AF_INET;
7423         sin->sin_len = sizeof(*sin);
7424         inp = (struct sctp_inpcb *)so->so_pcb;
7425         if (!inp) {
7426                 SCTP_FREE_SONAME(sin);
7427                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7428                 return (ECONNRESET);
7429         }
7430         SCTP_INP_RLOCK(inp);
7431         sin->sin_port = inp->sctp_lport;
7432         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7433                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7434                         struct sctp_tcb *stcb;
7435                         struct sockaddr_in *sin_a;
7436                         struct sctp_nets *net;
7437                         int fnd;
7438
7439                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7440                         if (stcb == NULL) {
7441                                 goto notConn;
7442                         }
7443                         fnd = 0;
7444                         sin_a = NULL;
7445                         SCTP_TCB_LOCK(stcb);
7446                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7447                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7448                                 if (sin_a == NULL)
7449                                         /* this will make coverity happy */
7450                                         continue;
7451
7452                                 if (sin_a->sin_family == AF_INET) {
7453                                         fnd = 1;
7454                                         break;
7455                                 }
7456                         }
7457                         if ((!fnd) || (sin_a == NULL)) {
7458                                 /* punt */
7459                                 SCTP_TCB_UNLOCK(stcb);
7460                                 goto notConn;
7461                         }
7462
7463                         vrf_id = inp->def_vrf_id;
7464                         sctp_ifa = sctp_source_address_selection(inp,
7465                             stcb,
7466                             (sctp_route_t *)&net->ro,
7467                             net, 0, vrf_id);
7468                         if (sctp_ifa) {
7469                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7470                                 sctp_free_ifa(sctp_ifa);
7471                         }
7472                         SCTP_TCB_UNLOCK(stcb);
7473                 } else {
7474                         /* For the bound all case you get back 0 */
7475         notConn:
7476                         sin->sin_addr.s_addr = 0;
7477                 }
7478
7479         } else {
7480                 /* Take the first IPv4 address in the list */
7481                 struct sctp_laddr *laddr;
7482                 int fnd = 0;
7483
7484                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7485                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7486                                 struct sockaddr_in *sin_a;
7487
7488                                 sin_a = &laddr->ifa->address.sin;
7489                                 sin->sin_addr = sin_a->sin_addr;
7490                                 fnd = 1;
7491                                 break;
7492                         }
7493                 }
7494                 if (!fnd) {
7495                         SCTP_FREE_SONAME(sin);
7496                         SCTP_INP_RUNLOCK(inp);
7497                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7498                         return (ENOENT);
7499                 }
7500         }
7501         SCTP_INP_RUNLOCK(inp);
7502         (*addr) = (struct sockaddr *)sin;
7503         return (0);
7504 }
7505
7506 int
7507 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7508 {
7509         struct sockaddr_in *sin;
7510         int fnd;
7511         struct sockaddr_in *sin_a;
7512         struct sctp_inpcb *inp;
7513         struct sctp_tcb *stcb;
7514         struct sctp_nets *net;
7515
7516         /* Do the malloc first in case it blocks. */
7517         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7518         if (sin == NULL)
7519                 return (ENOMEM);
7520         sin->sin_family = AF_INET;
7521         sin->sin_len = sizeof(*sin);
7522
7523         inp = (struct sctp_inpcb *)so->so_pcb;
7524         if ((inp == NULL) ||
7525             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7526                 /* UDP type and listeners will drop out here */
7527                 SCTP_FREE_SONAME(sin);
7528                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7529                 return (ENOTCONN);
7530         }
7531         SCTP_INP_RLOCK(inp);
7532         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7533         if (stcb) {
7534                 SCTP_TCB_LOCK(stcb);
7535         }
7536         SCTP_INP_RUNLOCK(inp);
7537         if (stcb == NULL) {
7538                 SCTP_FREE_SONAME(sin);
7539                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7540                 return (ECONNRESET);
7541         }
7542         fnd = 0;
7543         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7544                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7545                 if (sin_a->sin_family == AF_INET) {
7546                         fnd = 1;
7547                         sin->sin_port = stcb->rport;
7548                         sin->sin_addr = sin_a->sin_addr;
7549                         break;
7550                 }
7551         }
7552         SCTP_TCB_UNLOCK(stcb);
7553         if (!fnd) {
7554                 /* No IPv4 address */
7555                 SCTP_FREE_SONAME(sin);
7556                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7557                 return (ENOENT);
7558         }
7559         (*addr) = (struct sockaddr *)sin;
7560         return (0);
7561 }
7562
7563 struct pr_usrreqs sctp_usrreqs = {
7564         .pru_abort = sctp_abort,
7565         .pru_accept = sctp_accept,
7566         .pru_attach = sctp_attach,
7567         .pru_bind = sctp_bind,
7568         .pru_connect = sctp_connect,
7569         .pru_control = in_control,
7570         .pru_close = sctp_close,
7571         .pru_detach = sctp_close,
7572         .pru_sopoll = sopoll_generic,
7573         .pru_flush = sctp_flush,
7574         .pru_disconnect = sctp_disconnect,
7575         .pru_listen = sctp_listen,
7576         .pru_peeraddr = sctp_peeraddr,
7577         .pru_send = sctp_sendm,
7578         .pru_shutdown = sctp_shutdown,
7579         .pru_sockaddr = sctp_ingetaddr,
7580         .pru_sosend = sctp_sosend,
7581         .pru_soreceive = sctp_soreceive
7582 };
7583 #endif