sys/netinet/sctp_usrreq.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include <netinet/sctp_os.h>
  39 #include <sys/proc.h>
  40 #include <netinet/sctp_pcb.h>
  41 #include <netinet/sctp_header.h>
  42 #include <netinet/sctp_var.h>
  43 #ifdef INET6
  44 #include <netinet6/sctp6_var.h>
  45 #endif
  46 #include <netinet/sctp_sysctl.h>
  47 #include <netinet/sctp_output.h>
  48 #include <netinet/sctp_uio.h>
  49 #include <netinet/sctp_asconf.h>
  50 #include <netinet/sctputil.h>
  51 #include <netinet/sctp_indata.h>
  52 #include <netinet/sctp_timer.h>
  53 #include <netinet/sctp_auth.h>
  54 #include <netinet/sctp_bsd_addr.h>
  55 #include <netinet/udp.h>
  56 #include <sys/eventhandler.h>
  57
  58 extern const struct sctp_cc_functions sctp_cc_functions[];
  59 extern const struct sctp_ss_functions sctp_ss_functions[];
  60
  61 void
  62 sctp_init(void)
  63 {
  64         u_long sb_max_adj;
  65
  66         /* Initialize and modify the sysctled variables */
  67         sctp_init_sysctls();
  68         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  69                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  70         /*
  71          * Allow a user to take no more than 1/2 the number of clusters or
  72          * the SB_MAX, whichever is smaller, for the send window.
  73          */
  74         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  75         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  76             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  77         /*
  78          * Now for the recv window, should we take the same amount? or
  79          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  80          * now I will just copy.
  81          */
  82         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  83         SCTP_BASE_VAR(first_time) = 0;
  84         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  85         sctp_pcb_init();
  86 #if defined(SCTP_PACKET_LOGGING)
  87         SCTP_BASE_VAR(packet_log_writers) = 0;
  88         SCTP_BASE_VAR(packet_log_end) = 0;
  89         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  90 #endif
  91         SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
  92             sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
  93 }
  94
  95 #ifdef VIMAGE
  96 static void
  97 sctp_finish(void *unused __unused)
  98 {
  99         EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
 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 #ifdef INET
 414 static void
 415 sctp_abort(struct socket *so)
 416 {
 417         struct epoch_tracker et;
 418         struct sctp_inpcb *inp;
 419         uint32_t flags;
 420
 421         inp = (struct sctp_inpcb *)so->so_pcb;
 422         if (inp == NULL) {
 423                 return;
 424         }
 425
 426         NET_EPOCH_ENTER(et);
 427 sctp_must_try_again:
 428         flags = inp->sctp_flags;
 429 #ifdef SCTP_LOG_CLOSING
 430         sctp_log_closing(inp, NULL, 17);
 431 #endif
 432         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 433             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 434 #ifdef SCTP_LOG_CLOSING
 435                 sctp_log_closing(inp, NULL, 16);
 436 #endif
 437                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 438                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 439                 SOCK_LOCK(so);
 440                 SCTP_SB_CLEAR(so->so_snd);
 441                 /*
 442                  * same for the rcv ones, they are only here for the
 443                  * accounting/select.
 444                  */
 445                 SCTP_SB_CLEAR(so->so_rcv);
 446
 447                 /* Now null out the reference, we are completely detached. */
 448                 so->so_pcb = NULL;
 449                 SOCK_UNLOCK(so);
 450         } else {
 451                 flags = inp->sctp_flags;
 452                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 453                         goto sctp_must_try_again;
 454                 }
 455         }
 456         NET_EPOCH_EXIT(et);
 457         return;
 458 }
 459
 460 static int
 461 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 462 {
 463         struct sctp_inpcb *inp;
 464         struct inpcb *ip_inp;
 465         int error;
 466         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 467
 468         inp = (struct sctp_inpcb *)so->so_pcb;
 469         if (inp != NULL) {
 470                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 471                 return (EINVAL);
 472         }
 473         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 474                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 475                 if (error) {
 476                         return (error);
 477                 }
 478         }
 479         error = sctp_inpcb_alloc(so, vrf_id);
 480         if (error) {
 481                 return (error);
 482         }
 483         inp = (struct sctp_inpcb *)so->so_pcb;
 484         SCTP_INP_WLOCK(inp);
 485         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 486         ip_inp = &inp->ip_inp.inp;
 487         ip_inp->inp_vflag |= INP_IPV4;
 488         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 489         SCTP_INP_WUNLOCK(inp);
 490         return (0);
 491 }
 492
 493 static int
 494 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 495 {
 496         struct sctp_inpcb *inp;
 497
 498         inp = (struct sctp_inpcb *)so->so_pcb;
 499         if (inp == NULL) {
 500                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 501                 return (EINVAL);
 502         }
 503         if (addr != NULL) {
 504                 if ((addr->sa_family != AF_INET) ||
 505                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 506                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 507                         return (EINVAL);
 508                 }
 509         }
 510         return (sctp_inpcb_bind(so, addr, NULL, p));
 511 }
 512
 513 #endif
 514 void
 515 sctp_close(struct socket *so)
 516 {
 517         struct epoch_tracker et;
 518         struct sctp_inpcb *inp;
 519         uint32_t flags;
 520
 521         inp = (struct sctp_inpcb *)so->so_pcb;
 522         if (inp == NULL)
 523                 return;
 524
 525         /*
 526          * Inform all the lower layer assoc that we are done.
 527          */
 528         NET_EPOCH_ENTER(et);
 529 sctp_must_try_again:
 530         flags = inp->sctp_flags;
 531 #ifdef SCTP_LOG_CLOSING
 532         sctp_log_closing(inp, NULL, 17);
 533 #endif
 534         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 535             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 536                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 537                     (so->so_rcv.sb_cc > 0)) {
 538 #ifdef SCTP_LOG_CLOSING
 539                         sctp_log_closing(inp, NULL, 13);
 540 #endif
 541                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 542                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 543                 } else {
 544 #ifdef SCTP_LOG_CLOSING
 545                         sctp_log_closing(inp, NULL, 14);
 546 #endif
 547                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 548                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 549                 }
 550                 /*
 551                  * The socket is now detached, no matter what the state of
 552                  * the SCTP association.
 553                  */
 554                 SOCK_LOCK(so);
 555                 SCTP_SB_CLEAR(so->so_snd);
 556                 /*
 557                  * same for the rcv ones, they are only here for the
 558                  * accounting/select.
 559                  */
 560                 SCTP_SB_CLEAR(so->so_rcv);
 561
 562                 /* Now null out the reference, we are completely detached. */
 563                 so->so_pcb = NULL;
 564                 SOCK_UNLOCK(so);
 565         } else {
 566                 flags = inp->sctp_flags;
 567                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 568                         goto sctp_must_try_again;
 569                 }
 570         }
 571         NET_EPOCH_EXIT(et);
 572         return;
 573 }
 574
 575 int
 576 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 577     struct mbuf *control, struct thread *p);
 578
 579 int
 580 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 581     struct mbuf *control, struct thread *p)
 582 {
 583         struct sctp_inpcb *inp;
 584         int error;
 585
 586         inp = (struct sctp_inpcb *)so->so_pcb;
 587         if (inp == NULL) {
 588                 if (control) {
 589                         sctp_m_freem(control);
 590                         control = NULL;
 591                 }
 592                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 593                 sctp_m_freem(m);
 594                 return (EINVAL);
 595         }
 596         /* Got to have an to address if we are NOT a connected socket */
 597         if ((addr == NULL) &&
 598             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 599             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 600                 goto connected_type;
 601         } else if (addr == NULL) {
 602                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 603                 error = EDESTADDRREQ;
 604                 sctp_m_freem(m);
 605                 if (control) {
 606                         sctp_m_freem(control);
 607                         control = NULL;
 608                 }
 609                 return (error);
 610         }
 611 #ifdef INET6
 612         if (addr->sa_family != AF_INET) {
 613                 /* must be a v4 address! */
 614                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 615                 sctp_m_freem(m);
 616                 if (control) {
 617                         sctp_m_freem(control);
 618                         control = NULL;
 619                 }
 620                 error = EDESTADDRREQ;
 621                 return (error);
 622         }
 623 #endif                          /* INET6 */
 624 connected_type:
 625         /* now what about control */
 626         if (control) {
 627                 if (inp->control) {
 628                         sctp_m_freem(inp->control);
 629                         inp->control = NULL;
 630                 }
 631                 inp->control = control;
 632         }
 633         /* Place the data */
 634         if (inp->pkt) {
 635                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 636                 inp->pkt_last = m;
 637         } else {
 638                 inp->pkt_last = inp->pkt = m;
 639         }
 640         if (
 641         /* FreeBSD uses a flag passed */
 642             ((flags & PRUS_MORETOCOME) == 0)
 643             ) {
 644                 /*
 645                  * note with the current version this code will only be used
 646                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 647                  * re-defining sosend to use the sctp_sosend. One can
 648                  * optionally switch back to this code (by changing back the
 649                  * definitions) but this is not advisable. This code is used
 650                  * by FreeBSD when sending a file with sendfile() though.
 651                  */
 652                 struct epoch_tracker et;
 653                 int ret;
 654
 655                 NET_EPOCH_ENTER(et);
 656                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 657                 NET_EPOCH_EXIT(et);
 658                 inp->pkt = NULL;
 659                 inp->control = NULL;
 660                 return (ret);
 661         } else {
 662                 return (0);
 663         }
 664 }
 665
 666 int
 667 sctp_disconnect(struct socket *so)
 668 {
 669         struct sctp_inpcb *inp;
 670
 671         inp = (struct sctp_inpcb *)so->so_pcb;
 672         if (inp == NULL) {
 673                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 674                 return (ENOTCONN);
 675         }
 676         SCTP_INP_RLOCK(inp);
 677         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 678             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 679                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 680                         /* No connection */
 681                         SCTP_INP_RUNLOCK(inp);
 682                         return (0);
 683                 } else {
 684                         struct epoch_tracker et;
 685                         struct sctp_association *asoc;
 686                         struct sctp_tcb *stcb;
 687
 688                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 689                         if (stcb == NULL) {
 690                                 SCTP_INP_RUNLOCK(inp);
 691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 692                                 return (EINVAL);
 693                         }
 694                         SCTP_TCB_LOCK(stcb);
 695                         asoc = &stcb->asoc;
 696                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 697                                 /* We are about to be freed, out of here */
 698                                 SCTP_TCB_UNLOCK(stcb);
 699                                 SCTP_INP_RUNLOCK(inp);
 700                                 return (0);
 701                         }
 702                         NET_EPOCH_ENTER(et);
 703                         if (((so->so_options & SO_LINGER) &&
 704                             (so->so_linger == 0)) ||
 705                             (so->so_rcv.sb_cc > 0)) {
 706                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 707                                         /* Left with Data unread */
 708                                         struct mbuf *op_err;
 709
 710                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 711                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 712                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 713                                 }
 714                                 SCTP_INP_RUNLOCK(inp);
 715                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 716                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 717                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 718                                 }
 719                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 720                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 721                                 /* No unlock tcb assoc is gone */
 722                                 NET_EPOCH_EXIT(et);
 723                                 return (0);
 724                         }
 725                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 726                             TAILQ_EMPTY(&asoc->sent_queue) &&
 727                             (asoc->stream_queue_cnt == 0)) {
 728                                 /* there is nothing queued to send, so done */
 729                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 730                                         goto abort_anyway;
 731                                 }
 732                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 733                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 734                                         /* only send SHUTDOWN 1st time thru */
 735                                         struct sctp_nets *netp;
 736
 737                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 738                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 739                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 740                                         }
 741                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 742                                         sctp_stop_timers_for_shutdown(stcb);
 743                                         if (stcb->asoc.alternate) {
 744                                                 netp = stcb->asoc.alternate;
 745                                         } else {
 746                                                 netp = stcb->asoc.primary_destination;
 747                                         }
 748                                         sctp_send_shutdown(stcb, netp);
 749                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 750                                             stcb->sctp_ep, stcb, netp);
 751                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 752                                             stcb->sctp_ep, stcb, NULL);
 753                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 754                                 }
 755                         } else {
 756                                 /*
 757                                  * we still got (or just got) data to send,
 758                                  * so set SHUTDOWN_PENDING
 759                                  */
 760                                 /*
 761                                  * XXX sockets draft says that SCTP_EOF
 762                                  * should be sent with no data. currently,
 763                                  * we will allow user data to be sent first
 764                                  * and move to SHUTDOWN-PENDING
 765                                  */
 766                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 767                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 768                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 769                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 770                                 }
 771                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 772                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 773                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 774                                         struct mbuf *op_err;
 775
 776                         abort_anyway:
 777                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 778                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 779                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 780                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 781                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 782                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 783                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 784                                         }
 785                                         SCTP_INP_RUNLOCK(inp);
 786                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 787                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 788                                         NET_EPOCH_EXIT(et);
 789                                         return (0);
 790                                 } else {
 791                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 792                                 }
 793                         }
 794                         soisdisconnecting(so);
 795                         NET_EPOCH_EXIT(et);
 796                         SCTP_TCB_UNLOCK(stcb);
 797                         SCTP_INP_RUNLOCK(inp);
 798                         return (0);
 799                 }
 800                 /* not reached */
 801         } else {
 802                 /* UDP model does not support this */
 803                 SCTP_INP_RUNLOCK(inp);
 804                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 805                 return (EOPNOTSUPP);
 806         }
 807 }
 808
 809 int
 810 sctp_flush(struct socket *so, int how)
 811 {
 812         /*
 813          * We will just clear out the values and let subsequent close clear
 814          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 815          * they will not be able to read the data, the socket will block
 816          * that from happening.
 817          */
 818         struct sctp_inpcb *inp;
 819
 820         inp = (struct sctp_inpcb *)so->so_pcb;
 821         if (inp == NULL) {
 822                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 823                 return (EINVAL);
 824         }
 825         SCTP_INP_RLOCK(inp);
 826         /* For the 1 to many model this does nothing */
 827         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 828                 SCTP_INP_RUNLOCK(inp);
 829                 return (0);
 830         }
 831         SCTP_INP_RUNLOCK(inp);
 832         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 833                 /*
 834                  * First make sure the sb will be happy, we don't use these
 835                  * except maybe the count
 836                  */
 837                 SCTP_INP_WLOCK(inp);
 838                 SCTP_INP_READ_LOCK(inp);
 839                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 840                 SCTP_INP_READ_UNLOCK(inp);
 841                 SCTP_INP_WUNLOCK(inp);
 842                 so->so_rcv.sb_cc = 0;
 843                 so->so_rcv.sb_mbcnt = 0;
 844                 so->so_rcv.sb_mb = NULL;
 845         }
 846         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 847                 /*
 848                  * First make sure the sb will be happy, we don't use these
 849                  * except maybe the count
 850                  */
 851                 so->so_snd.sb_cc = 0;
 852                 so->so_snd.sb_mbcnt = 0;
 853                 so->so_snd.sb_mb = NULL;
 854         }
 855         return (0);
 856 }
 857
 858 int
 859 sctp_shutdown(struct socket *so)
 860 {
 861         struct sctp_inpcb *inp;
 862
 863         inp = (struct sctp_inpcb *)so->so_pcb;
 864         if (inp == NULL) {
 865                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 866                 return (EINVAL);
 867         }
 868         SCTP_INP_RLOCK(inp);
 869         /* For UDP model this is a invalid call */
 870         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 871             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 872                 /* Restore the flags that the soshutdown took away. */
 873                 SOCKBUF_LOCK(&so->so_rcv);
 874                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 875                 SOCKBUF_UNLOCK(&so->so_rcv);
 876                 /* This proc will wakeup for read and do nothing (I hope) */
 877                 SCTP_INP_RUNLOCK(inp);
 878                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 879                 return (EOPNOTSUPP);
 880         } else {
 881                 /*
 882                  * Ok, if we reach here its the TCP model and it is either a
 883                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 884                  * against it.
 885                  */
 886                 struct epoch_tracker et;
 887                 struct sctp_tcb *stcb;
 888                 struct sctp_association *asoc;
 889                 struct sctp_nets *netp;
 890
 891                 if ((so->so_state &
 892                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 893                         SCTP_INP_RUNLOCK(inp);
 894                         return (ENOTCONN);
 895                 }
 896                 socantsendmore(so);
 897
 898                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 899                 if (stcb == NULL) {
 900                         /*
 901                          * Ok, we hit the case that the shutdown call was
 902                          * made after an abort or something. Nothing to do
 903                          * now.
 904                          */
 905                         SCTP_INP_RUNLOCK(inp);
 906                         return (0);
 907                 }
 908                 SCTP_TCB_LOCK(stcb);
 909                 asoc = &stcb->asoc;
 910                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 911                         SCTP_TCB_UNLOCK(stcb);
 912                         SCTP_INP_RUNLOCK(inp);
 913                         return (0);
 914                 }
 915                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 916                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 917                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 918                         /*
 919                          * If we are not in or before ESTABLISHED, there is
 920                          * no protocol action required.
 921                          */
 922                         SCTP_TCB_UNLOCK(stcb);
 923                         SCTP_INP_RUNLOCK(inp);
 924                         return (0);
 925                 }
 926                 NET_EPOCH_ENTER(et);
 927                 if (stcb->asoc.alternate) {
 928                         netp = stcb->asoc.alternate;
 929                 } else {
 930                         netp = stcb->asoc.primary_destination;
 931                 }
 932                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 933                     TAILQ_EMPTY(&asoc->send_queue) &&
 934                     TAILQ_EMPTY(&asoc->sent_queue) &&
 935                     (asoc->stream_queue_cnt == 0)) {
 936                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 937                                 goto abort_anyway;
 938                         }
 939                         /* there is nothing queued to send, so I'm done... */
 940                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 941                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 942                         sctp_stop_timers_for_shutdown(stcb);
 943                         sctp_send_shutdown(stcb, netp);
 944                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 945                             stcb->sctp_ep, stcb, netp);
 946                 } else {
 947                         /*
 948                          * We still got (or just got) data to send, so set
 949                          * SHUTDOWN_PENDING.
 950                          */
 951                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 952                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 953                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 954                         }
 955                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 956                             TAILQ_EMPTY(&asoc->sent_queue) &&
 957                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 958                                 struct mbuf *op_err;
 959
 960                 abort_anyway:
 961                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 962                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 963                                 SCTP_INP_RUNLOCK(inp);
 964                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 965                                     op_err, SCTP_SO_LOCKED);
 966                                 NET_EPOCH_EXIT(et);
 967                                 return (0);
 968                         }
 969                 }
 970                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 971                 /*
 972                  * XXX: Why do this in the case where we have still data
 973                  * queued?
 974                  */
 975                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 976                 SCTP_TCB_UNLOCK(stcb);
 977                 SCTP_INP_RUNLOCK(inp);
 978                 NET_EPOCH_EXIT(et);
 979                 return (0);
 980         }
 981 }
 982
 983 /*
 984  * copies a "user" presentable address and removes embedded scope, etc.
 985  * returns 0 on success, 1 on error
 986  */
 987 static uint32_t
 988 sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
 989 {
 990 #ifdef INET6
 991         struct sockaddr_in6 lsa6;
 992
 993         src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
 994             &lsa6);
 995 #endif
 996         memcpy(dst, src, src->sa_len);
 997         return (0);
 998 }
 999
1000 static size_t
1001 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1002     struct sctp_tcb *stcb,
1003     size_t limit,
1004     struct sockaddr *addr,
1005     uint32_t vrf_id)
1006 {
1007         struct sctp_ifn *sctp_ifn;
1008         struct sctp_ifa *sctp_ifa;
1009         size_t actual;
1010         int loopback_scope;
1011 #if defined(INET)
1012         int ipv4_local_scope, ipv4_addr_legal;
1013 #endif
1014 #if defined(INET6)
1015         int local_scope, site_scope, ipv6_addr_legal;
1016 #endif
1017         struct sctp_vrf *vrf;
1018
1019         SCTP_IPI_ADDR_LOCK_ASSERT();
1020         actual = 0;
1021         if (limit == 0)
1022                 return (actual);
1023
1024         if (stcb) {
1025                 /* Turn on all the appropriate scope */
1026                 loopback_scope = stcb->asoc.scope.loopback_scope;
1027 #if defined(INET)
1028                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1029                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1030 #endif
1031 #if defined(INET6)
1032                 local_scope = stcb->asoc.scope.local_scope;
1033                 site_scope = stcb->asoc.scope.site_scope;
1034                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1035 #endif
1036         } else {
1037                 /* Use generic values for endpoints. */
1038                 loopback_scope = 1;
1039 #if defined(INET)
1040                 ipv4_local_scope = 1;
1041 #endif
1042 #if defined(INET6)
1043                 local_scope = 1;
1044                 site_scope = 1;
1045 #endif
1046                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1047 #if defined(INET6)
1048                         ipv6_addr_legal = 1;
1049 #endif
1050 #if defined(INET)
1051                         if (SCTP_IPV6_V6ONLY(inp)) {
1052                                 ipv4_addr_legal = 0;
1053                         } else {
1054                                 ipv4_addr_legal = 1;
1055                         }
1056 #endif
1057                 } else {
1058 #if defined(INET6)
1059                         ipv6_addr_legal = 0;
1060 #endif
1061 #if defined(INET)
1062                         ipv4_addr_legal = 1;
1063 #endif
1064                 }
1065         }
1066         vrf = sctp_find_vrf(vrf_id);
1067         if (vrf == NULL) {
1068                 return (0);
1069         }
1070         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1071                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1072                         if ((loopback_scope == 0) &&
1073                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1074                                 /* Skip loopback if loopback_scope not set */
1075                                 continue;
1076                         }
1077                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1078                                 if (stcb) {
1079                                         /*
1080                                          * For the BOUND-ALL case, the list
1081                                          * associated with a TCB is Always
1082                                          * considered a reverse list.. i.e.
1083                                          * it lists addresses that are NOT
1084                                          * part of the association. If this
1085                                          * is one of those we must skip it.
1086                                          */
1087                                         if (sctp_is_addr_restricted(stcb,
1088                                             sctp_ifa)) {
1089                                                 continue;
1090                                         }
1091                                 }
1092                                 switch (sctp_ifa->address.sa.sa_family) {
1093 #ifdef INET
1094                                 case AF_INET:
1095                                         if (ipv4_addr_legal) {
1096                                                 struct sockaddr_in *sin;
1097
1098                                                 sin = &sctp_ifa->address.sin;
1099                                                 if (sin->sin_addr.s_addr == 0) {
1100                                                         /*
1101                                                          * we skip
1102                                                          * unspecifed
1103                                                          * addresses
1104                                                          */
1105                                                         continue;
1106                                                 }
1107                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1108                                                     &sin->sin_addr) != 0) {
1109                                                         continue;
1110                                                 }
1111                                                 if ((ipv4_local_scope == 0) &&
1112                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1113                                                         continue;
1114                                                 }
1115 #ifdef INET6
1116                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1117                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1118                                                                 return (actual);
1119                                                         }
1120                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
1121                                                         ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1122                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1123                                                         actual += sizeof(struct sockaddr_in6);
1124                                                 } else {
1125 #endif
1126                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1127                                                                 return (actual);
1128                                                         }
1129                                                         memcpy(addr, sin, sizeof(struct sockaddr_in));
1130                                                         ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1131                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
1132                                                         actual += sizeof(struct sockaddr_in);
1133 #ifdef INET6
1134                                                 }
1135 #endif
1136                                         } else {
1137                                                 continue;
1138                                         }
1139                                         break;
1140 #endif
1141 #ifdef INET6
1142                                 case AF_INET6:
1143                                         if (ipv6_addr_legal) {
1144                                                 struct sockaddr_in6 *sin6;
1145
1146                                                 sin6 = &sctp_ifa->address.sin6;
1147                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1148                                                         /*
1149                                                          * we skip
1150                                                          * unspecifed
1151                                                          * addresses
1152                                                          */
1153                                                         continue;
1154                                                 }
1155                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1156                                                     &sin6->sin6_addr) != 0) {
1157                                                         continue;
1158                                                 }
1159                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1160                                                         if (local_scope == 0)
1161                                                                 continue;
1162                                                         if (sin6->sin6_scope_id == 0) {
1163                                                                 if (sa6_recoverscope(sin6) != 0)
1164                                                                         /*
1165                                                                          *
1166                                                                          * bad
1167                                                                          * link
1168                                                                          *
1169                                                                          * local
1170                                                                          *
1171                                                                          * address
1172                                                                          */
1173                                                                         continue;
1174                                                         }
1175                                                 }
1176                                                 if ((site_scope == 0) &&
1177                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1178                                                         continue;
1179                                                 }
1180                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1181                                                         return (actual);
1182                                                 }
1183                                                 memcpy(addr, sin6, sizeof(struct sockaddr_in6));
1184                                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1185                                                 addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1186                                                 actual += sizeof(struct sockaddr_in6);
1187                                         } else {
1188                                                 continue;
1189                                         }
1190                                         break;
1191 #endif
1192                                 default:
1193                                         /* TSNH */
1194                                         break;
1195                                 }
1196                         }
1197                 }
1198         } else {
1199                 struct sctp_laddr *laddr;
1200                 size_t sa_len;
1201
1202                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1203                         if (stcb) {
1204                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1205                                         continue;
1206                                 }
1207                         }
1208                         sa_len = laddr->ifa->address.sa.sa_len;
1209                         if (actual + sa_len > limit) {
1210                                 return (actual);
1211                         }
1212                         if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
1213                                 continue;
1214                         switch (laddr->ifa->address.sa.sa_family) {
1215 #ifdef INET
1216                         case AF_INET:
1217                                 ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1218                                 break;
1219 #endif
1220 #ifdef INET6
1221                         case AF_INET6:
1222                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1223                                 break;
1224 #endif
1225                         default:
1226                                 /* TSNH */
1227                                 break;
1228                         }
1229                         addr = (struct sockaddr *)((caddr_t)addr + sa_len);
1230                         actual += sa_len;
1231                 }
1232         }
1233         return (actual);
1234 }
1235
1236 static size_t
1237 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1238     struct sctp_tcb *stcb,
1239     size_t limit,
1240     struct sockaddr *addr)
1241 {
1242         size_t size = 0;
1243
1244         SCTP_IPI_ADDR_RLOCK();
1245         /* fill up addresses for the endpoint's default vrf */
1246         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
1247             inp->def_vrf_id);
1248         SCTP_IPI_ADDR_RUNLOCK();
1249         return (size);
1250 }
1251
1252 static int
1253 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1254 {
1255         int cnt = 0;
1256         struct sctp_vrf *vrf = NULL;
1257
1258         /*
1259          * In both sub-set bound an bound_all cases we return the MAXIMUM
1260          * number of addresses that you COULD get. In reality the sub-set
1261          * bound may have an exclusion list for a given TCB OR in the
1262          * bound-all case a TCB may NOT include the loopback or other
1263          * addresses as well.
1264          */
1265         SCTP_IPI_ADDR_LOCK_ASSERT();
1266         vrf = sctp_find_vrf(vrf_id);
1267         if (vrf == NULL) {
1268                 return (0);
1269         }
1270         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1271                 struct sctp_ifn *sctp_ifn;
1272                 struct sctp_ifa *sctp_ifa;
1273
1274                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1275                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1276                                 /* Count them if they are the right type */
1277                                 switch (sctp_ifa->address.sa.sa_family) {
1278 #ifdef INET
1279                                 case AF_INET:
1280 #ifdef INET6
1281                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1282                                                 cnt += sizeof(struct sockaddr_in6);
1283                                         else
1284                                                 cnt += sizeof(struct sockaddr_in);
1285 #else
1286                                         cnt += sizeof(struct sockaddr_in);
1287 #endif
1288                                         break;
1289 #endif
1290 #ifdef INET6
1291                                 case AF_INET6:
1292                                         cnt += sizeof(struct sockaddr_in6);
1293                                         break;
1294 #endif
1295                                 default:
1296                                         break;
1297                                 }
1298                         }
1299                 }
1300         } else {
1301                 struct sctp_laddr *laddr;
1302
1303                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1304                         switch (laddr->ifa->address.sa.sa_family) {
1305 #ifdef INET
1306                         case AF_INET:
1307 #ifdef INET6
1308                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1309                                         cnt += sizeof(struct sockaddr_in6);
1310                                 else
1311                                         cnt += sizeof(struct sockaddr_in);
1312 #else
1313                                 cnt += sizeof(struct sockaddr_in);
1314 #endif
1315                                 break;
1316 #endif
1317 #ifdef INET6
1318                         case AF_INET6:
1319                                 cnt += sizeof(struct sockaddr_in6);
1320                                 break;
1321 #endif
1322                         default:
1323                                 break;
1324                         }
1325                 }
1326         }
1327         return (cnt);
1328 }
1329
1330 static int
1331 sctp_count_max_addresses(struct sctp_inpcb *inp)
1332 {
1333         int cnt = 0;
1334
1335         SCTP_IPI_ADDR_RLOCK();
1336         /* count addresses for the endpoint's default VRF */
1337         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1338         SCTP_IPI_ADDR_RUNLOCK();
1339         return (cnt);
1340 }
1341
1342 static int
1343 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1344     size_t optsize, void *p, int delay)
1345 {
1346         int error;
1347         int creat_lock_on = 0;
1348         struct sctp_tcb *stcb = NULL;
1349         struct sockaddr *sa;
1350         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1351         uint32_t vrf_id;
1352         sctp_assoc_t *a_id;
1353
1354         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1355
1356         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1357             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1358                 /* We are already connected AND the TCP model */
1359                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1360                 return (EADDRINUSE);
1361         }
1362
1363         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1364             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1365                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1366                 return (EINVAL);
1367         }
1368
1369         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1370                 SCTP_INP_RLOCK(inp);
1371                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1372                 SCTP_INP_RUNLOCK(inp);
1373         }
1374         if (stcb) {
1375                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1376                 return (EALREADY);
1377         }
1378         SCTP_INP_INCR_REF(inp);
1379         SCTP_ASOC_CREATE_LOCK(inp);
1380         creat_lock_on = 1;
1381         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1382             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1383                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1384                 error = EFAULT;
1385                 goto out_now;
1386         }
1387         totaddrp = (unsigned int *)optval;
1388         totaddr = *totaddrp;
1389         sa = (struct sockaddr *)(totaddrp + 1);
1390         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1391         if (error != 0) {
1392                 /* Already have or am bring up an association */
1393                 SCTP_ASOC_CREATE_UNLOCK(inp);
1394                 creat_lock_on = 0;
1395                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1396                 goto out_now;
1397         }
1398 #ifdef INET6
1399         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1400             (num_v6 > 0)) {
1401                 error = EINVAL;
1402                 goto out_now;
1403         }
1404         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1405             (num_v4 > 0)) {
1406                 if (SCTP_IPV6_V6ONLY(inp)) {
1407                         /*
1408                          * if IPV6_V6ONLY flag, ignore connections destined
1409                          * to a v4 addr or v4-mapped addr
1410                          */
1411                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1412                         error = EINVAL;
1413                         goto out_now;
1414                 }
1415         }
1416 #endif                          /* INET6 */
1417         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1418             SCTP_PCB_FLAGS_UNBOUND) {
1419                 /* Bind a ephemeral port */
1420                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1421                 if (error) {
1422                         goto out_now;
1423                 }
1424         }
1425
1426         /* FIX ME: do we want to pass in a vrf on the connect call? */
1427         vrf_id = inp->def_vrf_id;
1428
1429         /* We are GOOD to go */
1430         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1431             inp->sctp_ep.pre_open_stream_count,
1432             inp->sctp_ep.port,
1433             (struct thread *)p,
1434             SCTP_INITIALIZE_AUTH_PARAMS);
1435         if (stcb == NULL) {
1436                 /* Gak! no memory */
1437                 goto out_now;
1438         }
1439         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1440                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1441                 /* Set the connected flag so we can queue data */
1442                 soisconnecting(so);
1443         }
1444         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1445         /* move to second address */
1446         switch (sa->sa_family) {
1447 #ifdef INET
1448         case AF_INET:
1449                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1450                 break;
1451 #endif
1452 #ifdef INET6
1453         case AF_INET6:
1454                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1455                 break;
1456 #endif
1457         default:
1458                 break;
1459         }
1460
1461         error = 0;
1462         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1463         /* Fill in the return id */
1464         if (error) {
1465                 goto out_now;
1466         }
1467         a_id = (sctp_assoc_t *)optval;
1468         *a_id = sctp_get_associd(stcb);
1469
1470         if (delay) {
1471                 /* doing delayed connection */
1472                 stcb->asoc.delayed_connection = 1;
1473                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1474         } else {
1475                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1476                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1477         }
1478         SCTP_TCB_UNLOCK(stcb);
1479 out_now:
1480         if (creat_lock_on) {
1481                 SCTP_ASOC_CREATE_UNLOCK(inp);
1482         }
1483         SCTP_INP_DECR_REF(inp);
1484         return (error);
1485 }
1486
1487 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1488         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1489             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1490                 SCTP_INP_RLOCK(inp); \
1491                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1492                 if (stcb) { \
1493                         SCTP_TCB_LOCK(stcb); \
1494                 } \
1495                 SCTP_INP_RUNLOCK(inp); \
1496         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1497                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1498                 if (stcb == NULL) { \
1499                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1500                         error = ENOENT; \
1501                         break; \
1502                 } \
1503         } else { \
1504                 stcb = NULL; \
1505         } \
1506 }
1507
1508 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1509         if (size < sizeof(type)) { \
1510                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1511                 error = EINVAL; \
1512                 break; \
1513         } else { \
1514                 destp = (type *)srcp; \
1515         } \
1516 }
1517
1518 static int
1519 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1520     void *p)
1521 {
1522         struct sctp_inpcb *inp = NULL;
1523         int error, val = 0;
1524         struct sctp_tcb *stcb = NULL;
1525
1526         if (optval == NULL) {
1527                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1528                 return (EINVAL);
1529         }
1530
1531         inp = (struct sctp_inpcb *)so->so_pcb;
1532         if (inp == NULL) {
1533                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1534                 return EINVAL;
1535         }
1536         error = 0;
1537
1538         switch (optname) {
1539         case SCTP_NODELAY:
1540         case SCTP_AUTOCLOSE:
1541         case SCTP_EXPLICIT_EOR:
1542         case SCTP_AUTO_ASCONF:
1543         case SCTP_DISABLE_FRAGMENTS:
1544         case SCTP_I_WANT_MAPPED_V4_ADDR:
1545         case SCTP_USE_EXT_RCVINFO:
1546                 SCTP_INP_RLOCK(inp);
1547                 switch (optname) {
1548                 case SCTP_DISABLE_FRAGMENTS:
1549                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1550                         break;
1551                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1552                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1553                         break;
1554                 case SCTP_AUTO_ASCONF:
1555                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1556                                 /* only valid for bound all sockets */
1557                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1558                         } else {
1559                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1560                                 error = EINVAL;
1561                                 goto flags_out;
1562                         }
1563                         break;
1564                 case SCTP_EXPLICIT_EOR:
1565                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1566                         break;
1567                 case SCTP_NODELAY:
1568                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1569                         break;
1570                 case SCTP_USE_EXT_RCVINFO:
1571                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1572                         break;
1573                 case SCTP_AUTOCLOSE:
1574                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1575                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1576                         else
1577                                 val = 0;
1578                         break;
1579
1580                 default:
1581                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1582                         error = ENOPROTOOPT;
1583                 }               /* end switch (sopt->sopt_name) */
1584                 if (*optsize < sizeof(val)) {
1585                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1586                         error = EINVAL;
1587                 }
1588 flags_out:
1589                 SCTP_INP_RUNLOCK(inp);
1590                 if (error == 0) {
1591                         /* return the option value */
1592                         *(int *)optval = val;
1593                         *optsize = sizeof(val);
1594                 }
1595                 break;
1596         case SCTP_GET_PACKET_LOG:
1597                 {
1598 #ifdef  SCTP_PACKET_LOGGING
1599                         uint8_t *target;
1600                         int ret;
1601
1602                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1603                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1604                         *optsize = ret;
1605 #else
1606                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1607                         error = EOPNOTSUPP;
1608 #endif
1609                         break;
1610                 }
1611         case SCTP_REUSE_PORT:
1612                 {
1613                         uint32_t *value;
1614
1615                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1616                                 /* Can't do this for a 1-m socket */
1617                                 error = EINVAL;
1618                                 break;
1619                         }
1620                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1621                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1622                         *optsize = sizeof(uint32_t);
1623                         break;
1624                 }
1625         case SCTP_PARTIAL_DELIVERY_POINT:
1626                 {
1627                         uint32_t *value;
1628
1629                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1630                         *value = inp->partial_delivery_point;
1631                         *optsize = sizeof(uint32_t);
1632                         break;
1633                 }
1634         case SCTP_FRAGMENT_INTERLEAVE:
1635                 {
1636                         uint32_t *value;
1637
1638                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1639                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1640                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1641                                         *value = SCTP_FRAG_LEVEL_2;
1642                                 } else {
1643                                         *value = SCTP_FRAG_LEVEL_1;
1644                                 }
1645                         } else {
1646                                 *value = SCTP_FRAG_LEVEL_0;
1647                         }
1648                         *optsize = sizeof(uint32_t);
1649                         break;
1650                 }
1651         case SCTP_INTERLEAVING_SUPPORTED:
1652                 {
1653                         struct sctp_assoc_value *av;
1654
1655                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1656                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1657
1658                         if (stcb) {
1659                                 av->assoc_value = stcb->asoc.idata_supported;
1660                                 SCTP_TCB_UNLOCK(stcb);
1661                         } else {
1662                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1663                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1664                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1665                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1666                                         SCTP_INP_RLOCK(inp);
1667                                         if (inp->idata_supported) {
1668                                                 av->assoc_value = 1;
1669                                         } else {
1670                                                 av->assoc_value = 0;
1671                                         }
1672                                         SCTP_INP_RUNLOCK(inp);
1673                                 } else {
1674                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1675                                         error = EINVAL;
1676                                 }
1677                         }
1678                         if (error == 0) {
1679                                 *optsize = sizeof(struct sctp_assoc_value);
1680                         }
1681                         break;
1682                 }
1683         case SCTP_CMT_ON_OFF:
1684                 {
1685                         struct sctp_assoc_value *av;
1686
1687                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1688                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1689                         if (stcb) {
1690                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1691                                 SCTP_TCB_UNLOCK(stcb);
1692                         } else {
1693                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1694                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1695                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1696                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1697                                         SCTP_INP_RLOCK(inp);
1698                                         av->assoc_value = inp->sctp_cmt_on_off;
1699                                         SCTP_INP_RUNLOCK(inp);
1700                                 } else {
1701                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1702                                         error = EINVAL;
1703                                 }
1704                         }
1705                         if (error == 0) {
1706                                 *optsize = sizeof(struct sctp_assoc_value);
1707                         }
1708                         break;
1709                 }
1710         case SCTP_PLUGGABLE_CC:
1711                 {
1712                         struct sctp_assoc_value *av;
1713
1714                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1715                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1716                         if (stcb) {
1717                                 av->assoc_value = stcb->asoc.congestion_control_module;
1718                                 SCTP_TCB_UNLOCK(stcb);
1719                         } else {
1720                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1721                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1722                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1723                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1724                                         SCTP_INP_RLOCK(inp);
1725                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1726                                         SCTP_INP_RUNLOCK(inp);
1727                                 } else {
1728                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1729                                         error = EINVAL;
1730                                 }
1731                         }
1732                         if (error == 0) {
1733                                 *optsize = sizeof(struct sctp_assoc_value);
1734                         }
1735                         break;
1736                 }
1737         case SCTP_CC_OPTION:
1738                 {
1739                         struct sctp_cc_option *cc_opt;
1740
1741                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1742                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1743                         if (stcb == NULL) {
1744                                 error = EINVAL;
1745                         } else {
1746                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1747                                         error = ENOTSUP;
1748                                 } else {
1749                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1750                                         *optsize = sizeof(struct sctp_cc_option);
1751                                 }
1752                                 SCTP_TCB_UNLOCK(stcb);
1753                         }
1754                         break;
1755                 }
1756         case SCTP_PLUGGABLE_SS:
1757                 {
1758                         struct sctp_assoc_value *av;
1759
1760                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1761                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1762                         if (stcb) {
1763                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1764                                 SCTP_TCB_UNLOCK(stcb);
1765                         } else {
1766                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1767                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1768                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1769                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1770                                         SCTP_INP_RLOCK(inp);
1771                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1772                                         SCTP_INP_RUNLOCK(inp);
1773                                 } else {
1774                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1775                                         error = EINVAL;
1776                                 }
1777                         }
1778                         if (error == 0) {
1779                                 *optsize = sizeof(struct sctp_assoc_value);
1780                         }
1781                         break;
1782                 }
1783         case SCTP_SS_VALUE:
1784                 {
1785                         struct sctp_stream_value *av;
1786
1787                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1788                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1789                         if (stcb) {
1790                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1791                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1792                                     &av->stream_value) < 0)) {
1793                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1794                                         error = EINVAL;
1795                                 } else {
1796                                         *optsize = sizeof(struct sctp_stream_value);
1797                                 }
1798                                 SCTP_TCB_UNLOCK(stcb);
1799                         } else {
1800                                 /*
1801                                  * Can't get stream value without
1802                                  * association
1803                                  */
1804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1805                                 error = EINVAL;
1806                         }
1807                         break;
1808                 }
1809         case SCTP_GET_ADDR_LEN:
1810                 {
1811                         struct sctp_assoc_value *av;
1812
1813                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1814                         error = EINVAL;
1815 #ifdef INET
1816                         if (av->assoc_value == AF_INET) {
1817                                 av->assoc_value = sizeof(struct sockaddr_in);
1818                                 error = 0;
1819                         }
1820 #endif
1821 #ifdef INET6
1822                         if (av->assoc_value == AF_INET6) {
1823                                 av->assoc_value = sizeof(struct sockaddr_in6);
1824                                 error = 0;
1825                         }
1826 #endif
1827                         if (error) {
1828                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1829                         } else {
1830                                 *optsize = sizeof(struct sctp_assoc_value);
1831                         }
1832                         break;
1833                 }
1834         case SCTP_GET_ASSOC_NUMBER:
1835                 {
1836                         uint32_t *value, cnt;
1837
1838                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1839                         SCTP_INP_RLOCK(inp);
1840                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1841                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1842                                 /* Can't do this for a 1-1 socket */
1843                                 error = EINVAL;
1844                                 SCTP_INP_RUNLOCK(inp);
1845                                 break;
1846                         }
1847                         cnt = 0;
1848                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1849                                 cnt++;
1850                         }
1851                         SCTP_INP_RUNLOCK(inp);
1852                         *value = cnt;
1853                         *optsize = sizeof(uint32_t);
1854                         break;
1855                 }
1856         case SCTP_GET_ASSOC_ID_LIST:
1857                 {
1858                         struct sctp_assoc_ids *ids;
1859                         uint32_t at;
1860                         size_t limit;
1861
1862                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1863                         SCTP_INP_RLOCK(inp);
1864                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1865                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1866                                 /* Can't do this for a 1-1 socket */
1867                                 error = EINVAL;
1868                                 SCTP_INP_RUNLOCK(inp);
1869                                 break;
1870                         }
1871                         at = 0;
1872                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1873                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1874                                 if (at < limit) {
1875                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1876                                         if (at == 0) {
1877                                                 error = EINVAL;
1878                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1879                                                 break;
1880                                         }
1881                                 } else {
1882                                         error = EINVAL;
1883                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1884                                         break;
1885                                 }
1886                         }
1887                         SCTP_INP_RUNLOCK(inp);
1888                         if (error == 0) {
1889                                 ids->gaids_number_of_ids = at;
1890                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1891                         }
1892                         break;
1893                 }
1894         case SCTP_CONTEXT:
1895                 {
1896                         struct sctp_assoc_value *av;
1897
1898                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1899                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1900
1901                         if (stcb) {
1902                                 av->assoc_value = stcb->asoc.context;
1903                                 SCTP_TCB_UNLOCK(stcb);
1904                         } else {
1905                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1906                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1907                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1908                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1909                                         SCTP_INP_RLOCK(inp);
1910                                         av->assoc_value = inp->sctp_context;
1911                                         SCTP_INP_RUNLOCK(inp);
1912                                 } else {
1913                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1914                                         error = EINVAL;
1915                                 }
1916                         }
1917                         if (error == 0) {
1918                                 *optsize = sizeof(struct sctp_assoc_value);
1919                         }
1920                         break;
1921                 }
1922         case SCTP_VRF_ID:
1923                 {
1924                         uint32_t *default_vrfid;
1925
1926                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1927                         *default_vrfid = inp->def_vrf_id;
1928                         *optsize = sizeof(uint32_t);
1929                         break;
1930                 }
1931         case SCTP_GET_ASOC_VRF:
1932                 {
1933                         struct sctp_assoc_value *id;
1934
1935                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1936                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1937                         if (stcb == NULL) {
1938                                 error = EINVAL;
1939                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1940                         } else {
1941                                 id->assoc_value = stcb->asoc.vrf_id;
1942                                 SCTP_TCB_UNLOCK(stcb);
1943                                 *optsize = sizeof(struct sctp_assoc_value);
1944                         }
1945                         break;
1946                 }
1947         case SCTP_GET_VRF_IDS:
1948                 {
1949                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1950                         error = EOPNOTSUPP;
1951                         break;
1952                 }
1953         case SCTP_GET_NONCE_VALUES:
1954                 {
1955                         struct sctp_get_nonce_values *gnv;
1956
1957                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1958                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1959
1960                         if (stcb) {
1961                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1962                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1963                                 SCTP_TCB_UNLOCK(stcb);
1964                                 *optsize = sizeof(struct sctp_get_nonce_values);
1965                         } else {
1966                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1967                                 error = ENOTCONN;
1968                         }
1969                         break;
1970                 }
1971         case SCTP_DELAYED_SACK:
1972                 {
1973                         struct sctp_sack_info *sack;
1974
1975                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1976                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1977                         if (stcb) {
1978                                 sack->sack_delay = stcb->asoc.delayed_ack;
1979                                 sack->sack_freq = stcb->asoc.sack_freq;
1980                                 SCTP_TCB_UNLOCK(stcb);
1981                         } else {
1982                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1983                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1984                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1985                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
1986                                         SCTP_INP_RLOCK(inp);
1987                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1988                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1989                                         SCTP_INP_RUNLOCK(inp);
1990                                 } else {
1991                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1992                                         error = EINVAL;
1993                                 }
1994                         }
1995                         if (error == 0) {
1996                                 *optsize = sizeof(struct sctp_sack_info);
1997                         }
1998                         break;
1999                 }
2000         case SCTP_GET_SNDBUF_USE:
2001                 {
2002                         struct sctp_sockstat *ss;
2003
2004                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2005                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2006
2007                         if (stcb) {
2008                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2009                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2010                                     stcb->asoc.size_on_all_streams);
2011                                 SCTP_TCB_UNLOCK(stcb);
2012                                 *optsize = sizeof(struct sctp_sockstat);
2013                         } else {
2014                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2015                                 error = ENOTCONN;
2016                         }
2017                         break;
2018                 }
2019         case SCTP_MAX_BURST:
2020                 {
2021                         struct sctp_assoc_value *av;
2022
2023                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2024                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2025
2026                         if (stcb) {
2027                                 av->assoc_value = stcb->asoc.max_burst;
2028                                 SCTP_TCB_UNLOCK(stcb);
2029                         } else {
2030                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2031                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2032                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2033                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2034                                         SCTP_INP_RLOCK(inp);
2035                                         av->assoc_value = inp->sctp_ep.max_burst;
2036                                         SCTP_INP_RUNLOCK(inp);
2037                                 } else {
2038                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2039                                         error = EINVAL;
2040                                 }
2041                         }
2042                         if (error == 0) {
2043                                 *optsize = sizeof(struct sctp_assoc_value);
2044                         }
2045                         break;
2046                 }
2047         case SCTP_MAXSEG:
2048                 {
2049                         struct sctp_assoc_value *av;
2050                         int ovh;
2051
2052                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2053                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2054
2055                         if (stcb) {
2056                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2057                                 SCTP_TCB_UNLOCK(stcb);
2058                         } else {
2059                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2060                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2061                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2062                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2063                                         SCTP_INP_RLOCK(inp);
2064                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2065                                                 ovh = SCTP_MED_OVERHEAD;
2066                                         } else {
2067                                                 ovh = SCTP_MED_V4_OVERHEAD;
2068                                         }
2069                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2070                                                 av->assoc_value = 0;
2071                                         else
2072                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2073                                         SCTP_INP_RUNLOCK(inp);
2074                                 } else {
2075                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2076                                         error = EINVAL;
2077                                 }
2078                         }
2079                         if (error == 0) {
2080                                 *optsize = sizeof(struct sctp_assoc_value);
2081                         }
2082                         break;
2083                 }
2084         case SCTP_GET_STAT_LOG:
2085                 error = sctp_fill_stat_log(optval, optsize);
2086                 break;
2087         case SCTP_EVENTS:
2088                 {
2089                         struct sctp_event_subscribe *events;
2090
2091                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2092                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2093                         SCTP_INP_RLOCK(inp);
2094                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2095                                 events->sctp_data_io_event = 1;
2096
2097                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2098                                 events->sctp_association_event = 1;
2099
2100                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2101                                 events->sctp_address_event = 1;
2102
2103                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2104                                 events->sctp_send_failure_event = 1;
2105
2106                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2107                                 events->sctp_peer_error_event = 1;
2108
2109                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2110                                 events->sctp_shutdown_event = 1;
2111
2112                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2113                                 events->sctp_partial_delivery_event = 1;
2114
2115                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2116                                 events->sctp_adaptation_layer_event = 1;
2117
2118                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2119                                 events->sctp_authentication_event = 1;
2120
2121                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2122                                 events->sctp_sender_dry_event = 1;
2123
2124                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2125                                 events->sctp_stream_reset_event = 1;
2126                         SCTP_INP_RUNLOCK(inp);
2127                         *optsize = sizeof(struct sctp_event_subscribe);
2128                         break;
2129                 }
2130         case SCTP_ADAPTATION_LAYER:
2131                 {
2132                         uint32_t *value;
2133
2134                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2135
2136                         SCTP_INP_RLOCK(inp);
2137                         *value = inp->sctp_ep.adaptation_layer_indicator;
2138                         SCTP_INP_RUNLOCK(inp);
2139                         *optsize = sizeof(uint32_t);
2140                         break;
2141                 }
2142         case SCTP_SET_INITIAL_DBG_SEQ:
2143                 {
2144                         uint32_t *value;
2145
2146                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2147                         SCTP_INP_RLOCK(inp);
2148                         *value = inp->sctp_ep.initial_sequence_debug;
2149                         SCTP_INP_RUNLOCK(inp);
2150                         *optsize = sizeof(uint32_t);
2151                         break;
2152                 }
2153         case SCTP_GET_LOCAL_ADDR_SIZE:
2154                 {
2155                         uint32_t *value;
2156
2157                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2158                         SCTP_INP_RLOCK(inp);
2159                         *value = sctp_count_max_addresses(inp);
2160                         SCTP_INP_RUNLOCK(inp);
2161                         *optsize = sizeof(uint32_t);
2162                         break;
2163                 }
2164         case SCTP_GET_REMOTE_ADDR_SIZE:
2165                 {
2166                         uint32_t *value;
2167                         size_t size;
2168                         struct sctp_nets *net;
2169
2170                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2171                         /* FIXME MT: change to sctp_assoc_value? */
2172                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2173
2174                         if (stcb) {
2175                                 size = 0;
2176                                 /* Count the sizes */
2177                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2178                                         switch (net->ro._l_addr.sa.sa_family) {
2179 #ifdef INET
2180                                         case AF_INET:
2181 #ifdef INET6
2182                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2183                                                         size += sizeof(struct sockaddr_in6);
2184                                                 } else {
2185                                                         size += sizeof(struct sockaddr_in);
2186                                                 }
2187 #else
2188                                                 size += sizeof(struct sockaddr_in);
2189 #endif
2190                                                 break;
2191 #endif
2192 #ifdef INET6
2193                                         case AF_INET6:
2194                                                 size += sizeof(struct sockaddr_in6);
2195                                                 break;
2196 #endif
2197                                         default:
2198                                                 break;
2199                                         }
2200                                 }
2201                                 SCTP_TCB_UNLOCK(stcb);
2202                                 *value = (uint32_t)size;
2203                                 *optsize = sizeof(uint32_t);
2204                         } else {
2205                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2206                                 error = ENOTCONN;
2207                         }
2208                         break;
2209                 }
2210         case SCTP_GET_PEER_ADDRESSES:
2211                 /*
2212                  * Get the address information, an array is passed in to
2213                  * fill up we pack it.
2214                  */
2215                 {
2216                         size_t cpsz, left;
2217                         struct sockaddr *addr;
2218                         struct sctp_nets *net;
2219                         struct sctp_getaddresses *saddr;
2220
2221                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2222                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2223
2224                         if (stcb) {
2225                                 left = *optsize - offsetof(struct sctp_getaddresses, addr);
2226                                 *optsize = offsetof(struct sctp_getaddresses, addr);
2227                                 addr = &saddr->addr[0].sa;
2228
2229                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2230                                         switch (net->ro._l_addr.sa.sa_family) {
2231 #ifdef INET
2232                                         case AF_INET:
2233 #ifdef INET6
2234                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2235                                                         cpsz = sizeof(struct sockaddr_in6);
2236                                                 } else {
2237                                                         cpsz = sizeof(struct sockaddr_in);
2238                                                 }
2239 #else
2240                                                 cpsz = sizeof(struct sockaddr_in);
2241 #endif
2242                                                 break;
2243 #endif
2244 #ifdef INET6
2245                                         case AF_INET6:
2246                                                 cpsz = sizeof(struct sockaddr_in6);
2247                                                 break;
2248 #endif
2249                                         default:
2250                                                 cpsz = 0;
2251                                                 break;
2252                                         }
2253                                         if (cpsz == 0) {
2254                                                 break;
2255                                         }
2256                                         if (left < cpsz) {
2257                                                 /* not enough room. */
2258                                                 break;
2259                                         }
2260 #if defined(INET) && defined(INET6)
2261                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2262                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2263                                                 /* Must map the address */
2264                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2265                                                     (struct sockaddr_in6 *)addr);
2266                                         } else {
2267                                                 memcpy(addr, &net->ro._l_addr, cpsz);
2268                                         }
2269 #else
2270                                         memcpy(addr, &net->ro._l_addr, cpsz);
2271 #endif
2272                                         ((struct sockaddr_in *)addr)->sin_port = stcb->rport;
2273
2274                                         addr = (struct sockaddr *)((caddr_t)addr + cpsz);
2275                                         left -= cpsz;
2276                                         *optsize += cpsz;
2277                                 }
2278                                 SCTP_TCB_UNLOCK(stcb);
2279                         } else {
2280                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2281                                 error = ENOENT;
2282                         }
2283                         break;
2284                 }
2285         case SCTP_GET_LOCAL_ADDRESSES:
2286                 {
2287                         size_t limit, actual;
2288                         struct sctp_getaddresses *saddr;
2289
2290                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2291                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2292
2293                         limit = *optsize - offsetof(struct sctp_getaddresses, addr);
2294                         actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
2295                         if (stcb) {
2296                                 SCTP_TCB_UNLOCK(stcb);
2297                         }
2298                         *optsize = offsetof(struct sctp_getaddresses, addr) + actual;
2299                         break;
2300                 }
2301         case SCTP_PEER_ADDR_PARAMS:
2302                 {
2303                         struct sctp_paddrparams *paddrp;
2304                         struct sctp_nets *net;
2305                         struct sockaddr *addr;
2306 #if defined(INET) && defined(INET6)
2307                         struct sockaddr_in sin_store;
2308 #endif
2309
2310                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2311                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2312
2313 #if defined(INET) && defined(INET6)
2314                         if (paddrp->spp_address.ss_family == AF_INET6) {
2315                                 struct sockaddr_in6 *sin6;
2316
2317                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2318                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2319                                         in6_sin6_2_sin(&sin_store, sin6);
2320                                         addr = (struct sockaddr *)&sin_store;
2321                                 } else {
2322                                         addr = (struct sockaddr *)&paddrp->spp_address;
2323                                 }
2324                         } else {
2325                                 addr = (struct sockaddr *)&paddrp->spp_address;
2326                         }
2327 #else
2328                         addr = (struct sockaddr *)&paddrp->spp_address;
2329 #endif
2330                         if (stcb != NULL) {
2331                                 net = sctp_findnet(stcb, addr);
2332                         } else {
2333                                 /*
2334                                  * We increment here since
2335                                  * sctp_findassociation_ep_addr() wil do a
2336                                  * decrement if it finds the stcb as long as
2337                                  * the locked tcb (last argument) is NOT a
2338                                  * TCB.. aka NULL.
2339                                  */
2340                                 net = NULL;
2341                                 SCTP_INP_INCR_REF(inp);
2342                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2343                                 if (stcb == NULL) {
2344                                         SCTP_INP_DECR_REF(inp);
2345                                 }
2346                         }
2347                         if ((stcb != NULL) && (net == NULL)) {
2348 #ifdef INET
2349                                 if (addr->sa_family == AF_INET) {
2350                                         struct sockaddr_in *sin;
2351
2352                                         sin = (struct sockaddr_in *)addr;
2353                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2354                                                 error = EINVAL;
2355                                                 SCTP_TCB_UNLOCK(stcb);
2356                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2357                                                 break;
2358                                         }
2359                                 } else
2360 #endif
2361 #ifdef INET6
2362                                 if (addr->sa_family == AF_INET6) {
2363                                         struct sockaddr_in6 *sin6;
2364
2365                                         sin6 = (struct sockaddr_in6 *)addr;
2366                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2367                                                 error = EINVAL;
2368                                                 SCTP_TCB_UNLOCK(stcb);
2369                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2370                                                 break;
2371                                         }
2372                                 } else
2373 #endif
2374                                 {
2375                                         error = EAFNOSUPPORT;
2376                                         SCTP_TCB_UNLOCK(stcb);
2377                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2378                                         break;
2379                                 }
2380                         }
2381
2382                         if (stcb != NULL) {
2383                                 /* Applies to the specific association */
2384                                 paddrp->spp_flags = 0;
2385                                 if (net != NULL) {
2386                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2387                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2388                                         paddrp->spp_pathmtu = net->mtu;
2389                                         switch (net->ro._l_addr.sa.sa_family) {
2390 #ifdef INET
2391                                         case AF_INET:
2392                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2393                                                 break;
2394 #endif
2395 #ifdef INET6
2396                                         case AF_INET6:
2397                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2398                                                 break;
2399 #endif
2400                                         default:
2401                                                 break;
2402                                         }
2403                                         /* get flags for HB */
2404                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2405                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2406                                         } else {
2407                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2408                                         }
2409                                         /* get flags for PMTU */
2410                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2411                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2412                                         } else {
2413                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2414                                         }
2415                                         if (net->dscp & 0x01) {
2416                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2417                                                 paddrp->spp_flags |= SPP_DSCP;
2418                                         }
2419 #ifdef INET6
2420                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2421                                             (net->flowlabel & 0x80000000)) {
2422                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2423                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2424                                         }
2425 #endif
2426                                 } else {
2427                                         /*
2428                                          * No destination so return default
2429                                          * value
2430                                          */
2431                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2432                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2433                                         if (stcb->asoc.default_dscp & 0x01) {
2434                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2435                                                 paddrp->spp_flags |= SPP_DSCP;
2436                                         }
2437 #ifdef INET6
2438                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2439                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2440                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2441                                         }
2442 #endif
2443                                         /* default settings should be these */
2444                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2445                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2446                                         } else {
2447                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2448                                         }
2449                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2450                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2451                                         } else {
2452                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2453                                         }
2454                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2455                                 }
2456                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2457                                 SCTP_TCB_UNLOCK(stcb);
2458                         } else {
2459                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2460                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2461                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2462                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2463                                         /* Use endpoint defaults */
2464                                         SCTP_INP_RLOCK(inp);
2465                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2466                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2467                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2468                                         /* get inp's default */
2469                                         if (inp->sctp_ep.default_dscp & 0x01) {
2470                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2471                                                 paddrp->spp_flags |= SPP_DSCP;
2472                                         }
2473 #ifdef INET6
2474                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2475                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2476                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2477                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2478                                         }
2479 #endif
2480                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2481
2482                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2483                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2484                                         } else {
2485                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2486                                         }
2487                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2488                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2489                                         } else {
2490                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2491                                         }
2492                                         SCTP_INP_RUNLOCK(inp);
2493                                 } else {
2494                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2495                                         error = EINVAL;
2496                                 }
2497                         }
2498                         if (error == 0) {
2499                                 *optsize = sizeof(struct sctp_paddrparams);
2500                         }
2501                         break;
2502                 }
2503         case SCTP_GET_PEER_ADDR_INFO:
2504                 {
2505                         struct sctp_paddrinfo *paddri;
2506                         struct sctp_nets *net;
2507                         struct sockaddr *addr;
2508 #if defined(INET) && defined(INET6)
2509                         struct sockaddr_in sin_store;
2510 #endif
2511
2512                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2513                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2514
2515 #if defined(INET) && defined(INET6)
2516                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2517                                 struct sockaddr_in6 *sin6;
2518
2519                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2520                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2521                                         in6_sin6_2_sin(&sin_store, sin6);
2522                                         addr = (struct sockaddr *)&sin_store;
2523                                 } else {
2524                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2525                                 }
2526                         } else {
2527                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2528                         }
2529 #else
2530                         addr = (struct sockaddr *)&paddri->spinfo_address;
2531 #endif
2532                         if (stcb != NULL) {
2533                                 net = sctp_findnet(stcb, addr);
2534                         } else {
2535                                 /*
2536                                  * We increment here since
2537                                  * sctp_findassociation_ep_addr() wil do a
2538                                  * decrement if it finds the stcb as long as
2539                                  * the locked tcb (last argument) is NOT a
2540                                  * TCB.. aka NULL.
2541                                  */
2542                                 net = NULL;
2543                                 SCTP_INP_INCR_REF(inp);
2544                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2545                                 if (stcb == NULL) {
2546                                         SCTP_INP_DECR_REF(inp);
2547                                 }
2548                         }
2549
2550                         if ((stcb != NULL) && (net != NULL)) {
2551                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2552                                         /* It's unconfirmed */
2553                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2554                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2555                                         /* It's active */
2556                                         paddri->spinfo_state = SCTP_ACTIVE;
2557                                 } else {
2558                                         /* It's inactive */
2559                                         paddri->spinfo_state = SCTP_INACTIVE;
2560                                 }
2561                                 paddri->spinfo_cwnd = net->cwnd;
2562                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2563                                 paddri->spinfo_rto = net->RTO;
2564                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2565                                 paddri->spinfo_mtu = net->mtu;
2566                                 switch (addr->sa_family) {
2567 #if defined(INET)
2568                                 case AF_INET:
2569                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2570                                         break;
2571 #endif
2572 #if defined(INET6)
2573                                 case AF_INET6:
2574                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2575                                         break;
2576 #endif
2577                                 default:
2578                                         break;
2579                                 }
2580                                 SCTP_TCB_UNLOCK(stcb);
2581                                 *optsize = sizeof(struct sctp_paddrinfo);
2582                         } else {
2583                                 if (stcb != NULL) {
2584                                         SCTP_TCB_UNLOCK(stcb);
2585                                 }
2586                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2587                                 error = ENOENT;
2588                         }
2589                         break;
2590                 }
2591         case SCTP_PCB_STATUS:
2592                 {
2593                         struct sctp_pcbinfo *spcb;
2594
2595                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2596                         sctp_fill_pcbinfo(spcb);
2597                         *optsize = sizeof(struct sctp_pcbinfo);
2598                         break;
2599                 }
2600         case SCTP_STATUS:
2601                 {
2602                         struct sctp_nets *net;
2603                         struct sctp_status *sstat;
2604
2605                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2606                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2607
2608                         if (stcb == NULL) {
2609                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2610                                 error = EINVAL;
2611                                 break;
2612                         }
2613                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2614                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2615                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2616                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2617                         /*
2618                          * We can't include chunks that have been passed to
2619                          * the socket layer. Only things in queue.
2620                          */
2621                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2622                             stcb->asoc.cnt_on_all_streams);
2623                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2624                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2625                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2626                         net = stcb->asoc.primary_destination;
2627                         if (net != NULL) {
2628                                 memcpy(&sstat->sstat_primary.spinfo_address,
2629                                     &net->ro._l_addr,
2630                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2631                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2632                                 /*
2633                                  * Again the user can get info from
2634                                  * sctp_constants.h for what the state of
2635                                  * the network is.
2636                                  */
2637                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2638                                         /* It's unconfirmed */
2639                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2640                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2641                                         /* It's active */
2642                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2643                                 } else {
2644                                         /* It's inactive */
2645                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2646                                 }
2647                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2648                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2649                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2650                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2651                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2652 #if defined(INET)
2653                                 case AF_INET:
2654                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2655                                         break;
2656 #endif
2657 #if defined(INET6)
2658                                 case AF_INET6:
2659                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2660                                         break;
2661 #endif
2662                                 default:
2663                                         break;
2664                                 }
2665                         } else {
2666                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2667                         }
2668                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2669                         SCTP_TCB_UNLOCK(stcb);
2670                         *optsize = sizeof(struct sctp_status);
2671                         break;
2672                 }
2673         case SCTP_RTOINFO:
2674                 {
2675                         struct sctp_rtoinfo *srto;
2676
2677                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2678                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2679
2680                         if (stcb) {
2681                                 srto->srto_initial = stcb->asoc.initial_rto;
2682                                 srto->srto_max = stcb->asoc.maxrto;
2683                                 srto->srto_min = stcb->asoc.minrto;
2684                                 SCTP_TCB_UNLOCK(stcb);
2685                         } else {
2686                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2687                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2688                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2689                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2690                                         SCTP_INP_RLOCK(inp);
2691                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2692                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2693                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2694                                         SCTP_INP_RUNLOCK(inp);
2695                                 } else {
2696                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2697                                         error = EINVAL;
2698                                 }
2699                         }
2700                         if (error == 0) {
2701                                 *optsize = sizeof(struct sctp_rtoinfo);
2702                         }
2703                         break;
2704                 }
2705         case SCTP_TIMEOUTS:
2706                 {
2707                         struct sctp_timeouts *stimo;
2708
2709                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2710                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2711
2712                         if (stcb) {
2713                                 stimo->stimo_init = stcb->asoc.timoinit;
2714                                 stimo->stimo_data = stcb->asoc.timodata;
2715                                 stimo->stimo_sack = stcb->asoc.timosack;
2716                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2717                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2718                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2719                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2720                                 SCTP_TCB_UNLOCK(stcb);
2721                                 *optsize = sizeof(struct sctp_timeouts);
2722                         } else {
2723                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2724                                 error = EINVAL;
2725                         }
2726                         break;
2727                 }
2728         case SCTP_ASSOCINFO:
2729                 {
2730                         struct sctp_assocparams *sasoc;
2731
2732                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2733                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2734
2735                         if (stcb) {
2736                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2737                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2738                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2739                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2740                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2741                                 SCTP_TCB_UNLOCK(stcb);
2742                         } else {
2743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2745                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2746                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2747                                         SCTP_INP_RLOCK(inp);
2748                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2749                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2750                                         sasoc->sasoc_number_peer_destinations = 0;
2751                                         sasoc->sasoc_peer_rwnd = 0;
2752                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2753                                         SCTP_INP_RUNLOCK(inp);
2754                                 } else {
2755                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2756                                         error = EINVAL;
2757                                 }
2758                         }
2759                         if (error == 0) {
2760                                 *optsize = sizeof(struct sctp_assocparams);
2761                         }
2762                         break;
2763                 }
2764         case SCTP_DEFAULT_SEND_PARAM:
2765                 {
2766                         struct sctp_sndrcvinfo *s_info;
2767
2768                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2769                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2770
2771                         if (stcb) {
2772                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2773                                 SCTP_TCB_UNLOCK(stcb);
2774                         } else {
2775                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2776                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2777                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2778                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2779                                         SCTP_INP_RLOCK(inp);
2780                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2781                                         SCTP_INP_RUNLOCK(inp);
2782                                 } else {
2783                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2784                                         error = EINVAL;
2785                                 }
2786                         }
2787                         if (error == 0) {
2788                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2789                         }
2790                         break;
2791                 }
2792         case SCTP_INITMSG:
2793                 {
2794                         struct sctp_initmsg *sinit;
2795
2796                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2797                         SCTP_INP_RLOCK(inp);
2798                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2799                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2800                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2801                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2802                         SCTP_INP_RUNLOCK(inp);
2803                         *optsize = sizeof(struct sctp_initmsg);
2804                         break;
2805                 }
2806         case SCTP_PRIMARY_ADDR:
2807                 /* we allow a "get" operation on this */
2808                 {
2809                         struct sctp_setprim *ssp;
2810
2811                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2812                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2813
2814                         if (stcb) {
2815                                 union sctp_sockstore *addr;
2816
2817                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2818                                 switch (addr->sa.sa_family) {
2819 #ifdef INET
2820                                 case AF_INET:
2821 #ifdef INET6
2822                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2823                                                 in6_sin_2_v4mapsin6(&addr->sin,
2824                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2825                                         } else {
2826                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2827                                         }
2828 #else
2829                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2830 #endif
2831                                         break;
2832 #endif
2833 #ifdef INET6
2834                                 case AF_INET6:
2835                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2836                                         break;
2837 #endif
2838                                 default:
2839                                         break;
2840                                 }
2841                                 SCTP_TCB_UNLOCK(stcb);
2842                                 *optsize = sizeof(struct sctp_setprim);
2843                         } else {
2844                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2845                                 error = EINVAL;
2846                         }
2847                         break;
2848                 }
2849         case SCTP_HMAC_IDENT:
2850                 {
2851                         struct sctp_hmacalgo *shmac;
2852                         sctp_hmaclist_t *hmaclist;
2853                         uint32_t size;
2854                         int i;
2855
2856                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2857
2858                         SCTP_INP_RLOCK(inp);
2859                         hmaclist = inp->sctp_ep.local_hmacs;
2860                         if (hmaclist == NULL) {
2861                                 /* no HMACs to return */
2862                                 *optsize = sizeof(*shmac);
2863                                 SCTP_INP_RUNLOCK(inp);
2864                                 break;
2865                         }
2866                         /* is there room for all of the hmac ids? */
2867                         size = sizeof(*shmac) + (hmaclist->num_algo *
2868                             sizeof(shmac->shmac_idents[0]));
2869                         if ((size_t)(*optsize) < size) {
2870                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2871                                 error = EINVAL;
2872                                 SCTP_INP_RUNLOCK(inp);
2873                                 break;
2874                         }
2875                         /* copy in the list */
2876                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2877                         for (i = 0; i < hmaclist->num_algo; i++) {
2878                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2879                         }
2880                         SCTP_INP_RUNLOCK(inp);
2881                         *optsize = size;
2882                         break;
2883                 }
2884         case SCTP_AUTH_ACTIVE_KEY:
2885                 {
2886                         struct sctp_authkeyid *scact;
2887
2888                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2889                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2890
2891                         if (stcb) {
2892                                 /* get the active key on the assoc */
2893                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2894                                 SCTP_TCB_UNLOCK(stcb);
2895                         } else {
2896                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2897                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2898                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2899                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2900                                         /* get the endpoint active key */
2901                                         SCTP_INP_RLOCK(inp);
2902                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2903                                         SCTP_INP_RUNLOCK(inp);
2904                                 } else {
2905                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2906                                         error = EINVAL;
2907                                 }
2908                         }
2909                         if (error == 0) {
2910                                 *optsize = sizeof(struct sctp_authkeyid);
2911                         }
2912                         break;
2913                 }
2914         case SCTP_LOCAL_AUTH_CHUNKS:
2915                 {
2916                         struct sctp_authchunks *sac;
2917                         sctp_auth_chklist_t *chklist = NULL;
2918                         size_t size = 0;
2919
2920                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2921                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2922
2923                         if (stcb) {
2924                                 /* get off the assoc */
2925                                 chklist = stcb->asoc.local_auth_chunks;
2926                                 /* is there enough space? */
2927                                 size = sctp_auth_get_chklist_size(chklist);
2928                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2929                                         error = EINVAL;
2930                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2931                                 } else {
2932                                         /* copy in the chunks */
2933                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2934                                         sac->gauth_number_of_chunks = (uint32_t)size;
2935                                         *optsize = sizeof(struct sctp_authchunks) + size;
2936                                 }
2937                                 SCTP_TCB_UNLOCK(stcb);
2938                         } else {
2939                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2940                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2941                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2942                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2943                                         /* get off the endpoint */
2944                                         SCTP_INP_RLOCK(inp);
2945                                         chklist = inp->sctp_ep.local_auth_chunks;
2946                                         /* is there enough space? */
2947                                         size = sctp_auth_get_chklist_size(chklist);
2948                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2949                                                 error = EINVAL;
2950                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2951                                         } else {
2952                                                 /* copy in the chunks */
2953                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2954                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2955                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2956                                         }
2957                                         SCTP_INP_RUNLOCK(inp);
2958                                 } else {
2959                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2960                                         error = EINVAL;
2961                                 }
2962                         }
2963                         break;
2964                 }
2965         case SCTP_PEER_AUTH_CHUNKS:
2966                 {
2967                         struct sctp_authchunks *sac;
2968                         sctp_auth_chklist_t *chklist = NULL;
2969                         size_t size = 0;
2970
2971                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2972                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2973
2974                         if (stcb) {
2975                                 /* get off the assoc */
2976                                 chklist = stcb->asoc.peer_auth_chunks;
2977                                 /* is there enough space? */
2978                                 size = sctp_auth_get_chklist_size(chklist);
2979                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2980                                         error = EINVAL;
2981                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2982                                 } else {
2983                                         /* copy in the chunks */
2984                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2985                                         sac->gauth_number_of_chunks = (uint32_t)size;
2986                                         *optsize = sizeof(struct sctp_authchunks) + size;
2987                                 }
2988                                 SCTP_TCB_UNLOCK(stcb);
2989                         } else {
2990                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2991                                 error = ENOENT;
2992                         }
2993                         break;
2994                 }
2995         case SCTP_EVENT:
2996                 {
2997                         struct sctp_event *event;
2998                         uint32_t event_type;
2999
3000                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3001                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3002
3003                         switch (event->se_type) {
3004                         case SCTP_ASSOC_CHANGE:
3005                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3006                                 break;
3007                         case SCTP_PEER_ADDR_CHANGE:
3008                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3009                                 break;
3010                         case SCTP_REMOTE_ERROR:
3011                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3012                                 break;
3013                         case SCTP_SEND_FAILED:
3014                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3015                                 break;
3016                         case SCTP_SHUTDOWN_EVENT:
3017                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3018                                 break;
3019                         case SCTP_ADAPTATION_INDICATION:
3020                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3021                                 break;
3022                         case SCTP_PARTIAL_DELIVERY_EVENT:
3023                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3024                                 break;
3025                         case SCTP_AUTHENTICATION_EVENT:
3026                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3027                                 break;
3028                         case SCTP_STREAM_RESET_EVENT:
3029                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3030                                 break;
3031                         case SCTP_SENDER_DRY_EVENT:
3032                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3033                                 break;
3034                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3035                                 event_type = 0;
3036                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3037                                 error = ENOTSUP;
3038                                 break;
3039                         case SCTP_ASSOC_RESET_EVENT:
3040                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3041                                 break;
3042                         case SCTP_STREAM_CHANGE_EVENT:
3043                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3044                                 break;
3045                         case SCTP_SEND_FAILED_EVENT:
3046                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3047                                 break;
3048                         default:
3049                                 event_type = 0;
3050                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3051                                 error = EINVAL;
3052                                 break;
3053                         }
3054                         if (event_type > 0) {
3055                                 if (stcb) {
3056                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3057                                 } else {
3058                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3059                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3060                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3061                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3062                                                 SCTP_INP_RLOCK(inp);
3063                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3064                                                 SCTP_INP_RUNLOCK(inp);
3065                                         } else {
3066                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3067                                                 error = EINVAL;
3068                                         }
3069                                 }
3070                         }
3071                         if (stcb != NULL) {
3072                                 SCTP_TCB_UNLOCK(stcb);
3073                         }
3074                         if (error == 0) {
3075                                 *optsize = sizeof(struct sctp_event);
3076                         }
3077                         break;
3078                 }
3079         case SCTP_RECVRCVINFO:
3080                 if (*optsize < sizeof(int)) {
3081                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3082                         error = EINVAL;
3083                 } else {
3084                         SCTP_INP_RLOCK(inp);
3085                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3086                         SCTP_INP_RUNLOCK(inp);
3087                         *optsize = sizeof(int);
3088                 }
3089                 break;
3090         case SCTP_RECVNXTINFO:
3091                 if (*optsize < sizeof(int)) {
3092                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3093                         error = EINVAL;
3094                 } else {
3095                         SCTP_INP_RLOCK(inp);
3096                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3097                         SCTP_INP_RUNLOCK(inp);
3098                         *optsize = sizeof(int);
3099                 }
3100                 break;
3101         case SCTP_DEFAULT_SNDINFO:
3102                 {
3103                         struct sctp_sndinfo *info;
3104
3105                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3106                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3107
3108                         if (stcb) {
3109                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3110                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3111                                 info->snd_flags &= 0xfff0;
3112                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3113                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3114                                 SCTP_TCB_UNLOCK(stcb);
3115                         } else {
3116                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3117                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3118                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3119                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3120                                         SCTP_INP_RLOCK(inp);
3121                                         info->snd_sid = inp->def_send.sinfo_stream;
3122                                         info->snd_flags = inp->def_send.sinfo_flags;
3123                                         info->snd_flags &= 0xfff0;
3124                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3125                                         info->snd_context = inp->def_send.sinfo_context;
3126                                         SCTP_INP_RUNLOCK(inp);
3127                                 } else {
3128                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3129                                         error = EINVAL;
3130                                 }
3131                         }
3132                         if (error == 0) {
3133                                 *optsize = sizeof(struct sctp_sndinfo);
3134                         }
3135                         break;
3136                 }
3137         case SCTP_DEFAULT_PRINFO:
3138                 {
3139                         struct sctp_default_prinfo *info;
3140
3141                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3142                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3143
3144                         if (stcb) {
3145                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3146                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3147                                 SCTP_TCB_UNLOCK(stcb);
3148                         } else {
3149                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3150                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3151                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3152                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3153                                         SCTP_INP_RLOCK(inp);
3154                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3155                                         info->pr_value = inp->def_send.sinfo_timetolive;
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_default_prinfo);
3164                         }
3165                         break;
3166                 }
3167         case SCTP_PEER_ADDR_THLDS:
3168                 {
3169                         struct sctp_paddrthlds *thlds;
3170                         struct sctp_nets *net;
3171                         struct sockaddr *addr;
3172 #if defined(INET) && defined(INET6)
3173                         struct sockaddr_in sin_store;
3174 #endif
3175
3176                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3177                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3178
3179 #if defined(INET) && defined(INET6)
3180                         if (thlds->spt_address.ss_family == AF_INET6) {
3181                                 struct sockaddr_in6 *sin6;
3182
3183                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3184                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3185                                         in6_sin6_2_sin(&sin_store, sin6);
3186                                         addr = (struct sockaddr *)&sin_store;
3187                                 } else {
3188                                         addr = (struct sockaddr *)&thlds->spt_address;
3189                                 }
3190                         } else {
3191                                 addr = (struct sockaddr *)&thlds->spt_address;
3192                         }
3193 #else
3194                         addr = (struct sockaddr *)&thlds->spt_address;
3195 #endif
3196                         if (stcb != NULL) {
3197                                 net = sctp_findnet(stcb, addr);
3198                         } else {
3199                                 /*
3200                                  * We increment here since
3201                                  * sctp_findassociation_ep_addr() wil do a
3202                                  * decrement if it finds the stcb as long as
3203                                  * the locked tcb (last argument) is NOT a
3204                                  * TCB.. aka NULL.
3205                                  */
3206                                 net = NULL;
3207                                 SCTP_INP_INCR_REF(inp);
3208                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3209                                 if (stcb == NULL) {
3210                                         SCTP_INP_DECR_REF(inp);
3211                                 }
3212                         }
3213                         if ((stcb != NULL) && (net == NULL)) {
3214 #ifdef INET
3215                                 if (addr->sa_family == AF_INET) {
3216                                         struct sockaddr_in *sin;
3217
3218                                         sin = (struct sockaddr_in *)addr;
3219                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3220                                                 error = EINVAL;
3221                                                 SCTP_TCB_UNLOCK(stcb);
3222                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3223                                                 break;
3224                                         }
3225                                 } else
3226 #endif
3227 #ifdef INET6
3228                                 if (addr->sa_family == AF_INET6) {
3229                                         struct sockaddr_in6 *sin6;
3230
3231                                         sin6 = (struct sockaddr_in6 *)addr;
3232                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3233                                                 error = EINVAL;
3234                                                 SCTP_TCB_UNLOCK(stcb);
3235                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3236                                                 break;
3237                                         }
3238                                 } else
3239 #endif
3240                                 {
3241                                         error = EAFNOSUPPORT;
3242                                         SCTP_TCB_UNLOCK(stcb);
3243                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3244                                         break;
3245                                 }
3246                         }
3247
3248                         if (stcb != NULL) {
3249                                 if (net != NULL) {
3250                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3251                                         thlds->spt_pathpfthld = net->pf_threshold;
3252                                         thlds->spt_pathcpthld = 0xffff;
3253                                 } else {
3254                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3255                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3256                                         thlds->spt_pathcpthld = 0xffff;
3257                                 }
3258                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3259                                 SCTP_TCB_UNLOCK(stcb);
3260                         } else {
3261                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3262                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3263                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3264                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3265                                         /* Use endpoint defaults */
3266                                         SCTP_INP_RLOCK(inp);
3267                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3268                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3269                                         thlds->spt_pathcpthld = 0xffff;
3270                                         SCTP_INP_RUNLOCK(inp);
3271                                 } else {
3272                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3273                                         error = EINVAL;
3274                                 }
3275                         }
3276                         if (error == 0) {
3277                                 *optsize = sizeof(struct sctp_paddrthlds);
3278                         }
3279                         break;
3280                 }
3281         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3282                 {
3283                         struct sctp_udpencaps *encaps;
3284                         struct sctp_nets *net;
3285                         struct sockaddr *addr;
3286 #if defined(INET) && defined(INET6)
3287                         struct sockaddr_in sin_store;
3288 #endif
3289
3290                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3291                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3292
3293 #if defined(INET) && defined(INET6)
3294                         if (encaps->sue_address.ss_family == AF_INET6) {
3295                                 struct sockaddr_in6 *sin6;
3296
3297                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3298                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3299                                         in6_sin6_2_sin(&sin_store, sin6);
3300                                         addr = (struct sockaddr *)&sin_store;
3301                                 } else {
3302                                         addr = (struct sockaddr *)&encaps->sue_address;
3303                                 }
3304                         } else {
3305                                 addr = (struct sockaddr *)&encaps->sue_address;
3306                         }
3307 #else
3308                         addr = (struct sockaddr *)&encaps->sue_address;
3309 #endif
3310                         if (stcb) {
3311                                 net = sctp_findnet(stcb, addr);
3312                         } else {
3313                                 /*
3314                                  * We increment here since
3315                                  * sctp_findassociation_ep_addr() wil do a
3316                                  * decrement if it finds the stcb as long as
3317                                  * the locked tcb (last argument) is NOT a
3318                                  * TCB.. aka NULL.
3319                                  */
3320                                 net = NULL;
3321                                 SCTP_INP_INCR_REF(inp);
3322                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3323                                 if (stcb == NULL) {
3324                                         SCTP_INP_DECR_REF(inp);
3325                                 }
3326                         }
3327                         if ((stcb != NULL) && (net == NULL)) {
3328 #ifdef INET
3329                                 if (addr->sa_family == AF_INET) {
3330                                         struct sockaddr_in *sin;
3331
3332                                         sin = (struct sockaddr_in *)addr;
3333                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3334                                                 error = EINVAL;
3335                                                 SCTP_TCB_UNLOCK(stcb);
3336                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3337                                                 break;
3338                                         }
3339                                 } else
3340 #endif
3341 #ifdef INET6
3342                                 if (addr->sa_family == AF_INET6) {
3343                                         struct sockaddr_in6 *sin6;
3344
3345                                         sin6 = (struct sockaddr_in6 *)addr;
3346                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3347                                                 error = EINVAL;
3348                                                 SCTP_TCB_UNLOCK(stcb);
3349                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3350                                                 break;
3351                                         }
3352                                 } else
3353 #endif
3354                                 {
3355                                         error = EAFNOSUPPORT;
3356                                         SCTP_TCB_UNLOCK(stcb);
3357                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3358                                         break;
3359                                 }
3360                         }
3361
3362                         if (stcb != NULL) {
3363                                 if (net) {
3364                                         encaps->sue_port = net->port;
3365                                 } else {
3366                                         encaps->sue_port = stcb->asoc.port;
3367                                 }
3368                                 SCTP_TCB_UNLOCK(stcb);
3369                         } else {
3370                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3371                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3372                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3373                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3374                                         SCTP_INP_RLOCK(inp);
3375                                         encaps->sue_port = inp->sctp_ep.port;
3376                                         SCTP_INP_RUNLOCK(inp);
3377                                 } else {
3378                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3379                                         error = EINVAL;
3380                                 }
3381                         }
3382                         if (error == 0) {
3383                                 *optsize = sizeof(struct sctp_udpencaps);
3384                         }
3385                         break;
3386                 }
3387         case SCTP_ECN_SUPPORTED:
3388                 {
3389                         struct sctp_assoc_value *av;
3390
3391                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3392                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3393
3394                         if (stcb) {
3395                                 av->assoc_value = stcb->asoc.ecn_supported;
3396                                 SCTP_TCB_UNLOCK(stcb);
3397                         } else {
3398                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3399                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3400                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3401                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3402                                         SCTP_INP_RLOCK(inp);
3403                                         av->assoc_value = inp->ecn_supported;
3404                                         SCTP_INP_RUNLOCK(inp);
3405                                 } else {
3406                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3407                                         error = EINVAL;
3408                                 }
3409                         }
3410                         if (error == 0) {
3411                                 *optsize = sizeof(struct sctp_assoc_value);
3412                         }
3413                         break;
3414                 }
3415         case SCTP_PR_SUPPORTED:
3416                 {
3417                         struct sctp_assoc_value *av;
3418
3419                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3420                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3421
3422                         if (stcb) {
3423                                 av->assoc_value = stcb->asoc.prsctp_supported;
3424                                 SCTP_TCB_UNLOCK(stcb);
3425                         } else {
3426                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3427                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3428                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3429                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3430                                         SCTP_INP_RLOCK(inp);
3431                                         av->assoc_value = inp->prsctp_supported;
3432                                         SCTP_INP_RUNLOCK(inp);
3433                                 } else {
3434                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3435                                         error = EINVAL;
3436                                 }
3437                         }
3438                         if (error == 0) {
3439                                 *optsize = sizeof(struct sctp_assoc_value);
3440                         }
3441                         break;
3442                 }
3443         case SCTP_AUTH_SUPPORTED:
3444                 {
3445                         struct sctp_assoc_value *av;
3446
3447                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3448                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3449
3450                         if (stcb) {
3451                                 av->assoc_value = stcb->asoc.auth_supported;
3452                                 SCTP_TCB_UNLOCK(stcb);
3453                         } else {
3454                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3455                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3456                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3457                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3458                                         SCTP_INP_RLOCK(inp);
3459                                         av->assoc_value = inp->auth_supported;
3460                                         SCTP_INP_RUNLOCK(inp);
3461                                 } else {
3462                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3463                                         error = EINVAL;
3464                                 }
3465                         }
3466                         if (error == 0) {
3467                                 *optsize = sizeof(struct sctp_assoc_value);
3468                         }
3469                         break;
3470                 }
3471         case SCTP_ASCONF_SUPPORTED:
3472                 {
3473                         struct sctp_assoc_value *av;
3474
3475                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3476                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3477
3478                         if (stcb) {
3479                                 av->assoc_value = stcb->asoc.asconf_supported;
3480                                 SCTP_TCB_UNLOCK(stcb);
3481                         } else {
3482                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3483                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3484                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3485                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3486                                         SCTP_INP_RLOCK(inp);
3487                                         av->assoc_value = inp->asconf_supported;
3488                                         SCTP_INP_RUNLOCK(inp);
3489                                 } else {
3490                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3491                                         error = EINVAL;
3492                                 }
3493                         }
3494                         if (error == 0) {
3495                                 *optsize = sizeof(struct sctp_assoc_value);
3496                         }
3497                         break;
3498                 }
3499         case SCTP_RECONFIG_SUPPORTED:
3500                 {
3501                         struct sctp_assoc_value *av;
3502
3503                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3504                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3505
3506                         if (stcb) {
3507                                 av->assoc_value = stcb->asoc.reconfig_supported;
3508                                 SCTP_TCB_UNLOCK(stcb);
3509                         } else {
3510                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3511                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3512                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3513                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3514                                         SCTP_INP_RLOCK(inp);
3515                                         av->assoc_value = inp->reconfig_supported;
3516                                         SCTP_INP_RUNLOCK(inp);
3517                                 } else {
3518                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3519                                         error = EINVAL;
3520                                 }
3521                         }
3522                         if (error == 0) {
3523                                 *optsize = sizeof(struct sctp_assoc_value);
3524                         }
3525                         break;
3526                 }
3527         case SCTP_NRSACK_SUPPORTED:
3528                 {
3529                         struct sctp_assoc_value *av;
3530
3531                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3532                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3533
3534                         if (stcb) {
3535                                 av->assoc_value = stcb->asoc.nrsack_supported;
3536                                 SCTP_TCB_UNLOCK(stcb);
3537                         } else {
3538                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3539                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3540                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3541                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3542                                         SCTP_INP_RLOCK(inp);
3543                                         av->assoc_value = inp->nrsack_supported;
3544                                         SCTP_INP_RUNLOCK(inp);
3545                                 } else {
3546                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3547                                         error = EINVAL;
3548                                 }
3549                         }
3550                         if (error == 0) {
3551                                 *optsize = sizeof(struct sctp_assoc_value);
3552                         }
3553                         break;
3554                 }
3555         case SCTP_PKTDROP_SUPPORTED:
3556                 {
3557                         struct sctp_assoc_value *av;
3558
3559                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3560                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3561
3562                         if (stcb) {
3563                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3564                                 SCTP_TCB_UNLOCK(stcb);
3565                         } else {
3566                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3567                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3568                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3569                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3570                                         SCTP_INP_RLOCK(inp);
3571                                         av->assoc_value = inp->pktdrop_supported;
3572                                         SCTP_INP_RUNLOCK(inp);
3573                                 } else {
3574                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3575                                         error = EINVAL;
3576                                 }
3577                         }
3578                         if (error == 0) {
3579                                 *optsize = sizeof(struct sctp_assoc_value);
3580                         }
3581                         break;
3582                 }
3583         case SCTP_ENABLE_STREAM_RESET:
3584                 {
3585                         struct sctp_assoc_value *av;
3586
3587                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3588                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3589
3590                         if (stcb) {
3591                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3592                                 SCTP_TCB_UNLOCK(stcb);
3593                         } else {
3594                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3595                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3596                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3597                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3598                                         SCTP_INP_RLOCK(inp);
3599                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3600                                         SCTP_INP_RUNLOCK(inp);
3601                                 } else {
3602                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3603                                         error = EINVAL;
3604                                 }
3605                         }
3606                         if (error == 0) {
3607                                 *optsize = sizeof(struct sctp_assoc_value);
3608                         }
3609                         break;
3610                 }
3611         case SCTP_PR_STREAM_STATUS:
3612                 {
3613                         struct sctp_prstatus *sprstat;
3614                         uint16_t sid;
3615                         uint16_t policy;
3616
3617                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3618                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3619
3620                         sid = sprstat->sprstat_sid;
3621                         policy = sprstat->sprstat_policy;
3622 #if defined(SCTP_DETAILED_STR_STATS)
3623                         if ((stcb != NULL) &&
3624                             (sid < stcb->asoc.streamoutcnt) &&
3625                             (policy != SCTP_PR_SCTP_NONE) &&
3626                             ((policy <= SCTP_PR_SCTP_MAX) ||
3627                             (policy == SCTP_PR_SCTP_ALL))) {
3628                                 if (policy == SCTP_PR_SCTP_ALL) {
3629                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3630                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3631                                 } else {
3632                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3633                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3634                                 }
3635 #else
3636                         if ((stcb != NULL) &&
3637                             (sid < stcb->asoc.streamoutcnt) &&
3638                             (policy == SCTP_PR_SCTP_ALL)) {
3639                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3640                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3641 #endif
3642                         } else {
3643                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3644                                 error = EINVAL;
3645                         }
3646                         if (stcb != NULL) {
3647                                 SCTP_TCB_UNLOCK(stcb);
3648                         }
3649                         if (error == 0) {
3650                                 *optsize = sizeof(struct sctp_prstatus);
3651                         }
3652                         break;
3653                 }
3654         case SCTP_PR_ASSOC_STATUS:
3655                 {
3656                         struct sctp_prstatus *sprstat;
3657                         uint16_t policy;
3658
3659                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3660                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3661
3662                         policy = sprstat->sprstat_policy;
3663                         if ((stcb != NULL) &&
3664                             (policy != SCTP_PR_SCTP_NONE) &&
3665                             ((policy <= SCTP_PR_SCTP_MAX) ||
3666                             (policy == SCTP_PR_SCTP_ALL))) {
3667                                 if (policy == SCTP_PR_SCTP_ALL) {
3668                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3669                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3670                                 } else {
3671                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3672                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3673                                 }
3674                         } else {
3675                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3676                                 error = EINVAL;
3677                         }
3678                         if (stcb != NULL) {
3679                                 SCTP_TCB_UNLOCK(stcb);
3680                         }
3681                         if (error == 0) {
3682                                 *optsize = sizeof(struct sctp_prstatus);
3683                         }
3684                         break;
3685                 }
3686         case SCTP_MAX_CWND:
3687                 {
3688                         struct sctp_assoc_value *av;
3689
3690                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3691                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3692
3693                         if (stcb) {
3694                                 av->assoc_value = stcb->asoc.max_cwnd;
3695                                 SCTP_TCB_UNLOCK(stcb);
3696                         } else {
3697                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3698                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3699                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3700                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3701                                         SCTP_INP_RLOCK(inp);
3702                                         av->assoc_value = inp->max_cwnd;
3703                                         SCTP_INP_RUNLOCK(inp);
3704                                 } else {
3705                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3706                                         error = EINVAL;
3707                                 }
3708                         }
3709                         if (error == 0) {
3710                                 *optsize = sizeof(struct sctp_assoc_value);
3711                         }
3712                         break;
3713                 }
3714         default:
3715                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3716                 error = ENOPROTOOPT;
3717                 break;
3718         }                       /* end switch (sopt->sopt_name) */
3719         if (error) {
3720                 *optsize = 0;
3721         }
3722         return (error);
3723 }
3724
3725 static int
3726 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3727     void *p)
3728 {
3729         int error, set_opt;
3730         uint32_t *mopt;
3731         struct sctp_tcb *stcb = NULL;
3732         struct sctp_inpcb *inp = NULL;
3733         uint32_t vrf_id;
3734
3735         if (optval == NULL) {
3736                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3737                 return (EINVAL);
3738         }
3739         inp = (struct sctp_inpcb *)so->so_pcb;
3740         if (inp == NULL) {
3741                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3742                 return (EINVAL);
3743         }
3744         vrf_id = inp->def_vrf_id;
3745
3746         error = 0;
3747         switch (optname) {
3748         case SCTP_NODELAY:
3749         case SCTP_AUTOCLOSE:
3750         case SCTP_AUTO_ASCONF:
3751         case SCTP_EXPLICIT_EOR:
3752         case SCTP_DISABLE_FRAGMENTS:
3753         case SCTP_USE_EXT_RCVINFO:
3754         case SCTP_I_WANT_MAPPED_V4_ADDR:
3755                 /* copy in the option value */
3756                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3757                 set_opt = 0;
3758                 if (error)
3759                         break;
3760                 switch (optname) {
3761                 case SCTP_DISABLE_FRAGMENTS:
3762                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3763                         break;
3764                 case SCTP_AUTO_ASCONF:
3765                         /*
3766                          * NOTE: we don't really support this flag
3767                          */
3768                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3769                                 /* only valid for bound all sockets */
3770                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3771                                     (*mopt != 0)) {
3772                                         /* forbidden by admin */
3773                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3774                                         return (EPERM);
3775                                 }
3776                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3777                         } else {
3778                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3779                                 return (EINVAL);
3780                         }
3781                         break;
3782                 case SCTP_EXPLICIT_EOR:
3783                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3784                         break;
3785                 case SCTP_USE_EXT_RCVINFO:
3786                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3787                         break;
3788                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3789                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3790                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3791                         } else {
3792                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3793                                 return (EINVAL);
3794                         }
3795                         break;
3796                 case SCTP_NODELAY:
3797                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3798                         break;
3799                 case SCTP_AUTOCLOSE:
3800                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3801                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3802                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3803                                 return (EINVAL);
3804                         }
3805                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3806                         /*
3807                          * The value is in ticks. Note this does not effect
3808                          * old associations, only new ones.
3809                          */
3810                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3811                         break;
3812                 }
3813                 SCTP_INP_WLOCK(inp);
3814                 if (*mopt != 0) {
3815                         sctp_feature_on(inp, set_opt);
3816                 } else {
3817                         sctp_feature_off(inp, set_opt);
3818                 }
3819                 SCTP_INP_WUNLOCK(inp);
3820                 break;
3821         case SCTP_REUSE_PORT:
3822                 {
3823                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3824                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3825                                 /* Can't set it after we are bound */
3826                                 error = EINVAL;
3827                                 break;
3828                         }
3829                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3830                                 /* Can't do this for a 1-m socket */
3831                                 error = EINVAL;
3832                                 break;
3833                         }
3834                         if (optval)
3835                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3836                         else
3837                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3838                         break;
3839                 }
3840         case SCTP_PARTIAL_DELIVERY_POINT:
3841                 {
3842                         uint32_t *value;
3843
3844                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3845                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3846                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3847                                 error = EINVAL;
3848                                 break;
3849                         }
3850                         inp->partial_delivery_point = *value;
3851                         break;
3852                 }
3853         case SCTP_FRAGMENT_INTERLEAVE:
3854                 /* not yet until we re-write sctp_recvmsg() */
3855                 {
3856                         uint32_t *level;
3857
3858                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3859                         if (*level == SCTP_FRAG_LEVEL_2) {
3860                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3861                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3862                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3863                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3864                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3865                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3866                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3867                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3868
3869                         } else {
3870                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3871                                 error = EINVAL;
3872                         }
3873                         break;
3874                 }
3875         case SCTP_INTERLEAVING_SUPPORTED:
3876                 {
3877                         struct sctp_assoc_value *av;
3878
3879                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3880                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3881
3882                         if (stcb) {
3883                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3884                                 error = EINVAL;
3885                                 SCTP_TCB_UNLOCK(stcb);
3886                         } else {
3887                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3888                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3889                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3890                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3891                                         SCTP_INP_WLOCK(inp);
3892                                         if (av->assoc_value == 0) {
3893                                                 inp->idata_supported = 0;
3894                                         } else {
3895                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3896                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3897                                                         inp->idata_supported = 1;
3898                                                 } else {
3899                                                         /*
3900                                                          * Must have Frag
3901                                                          * interleave and
3902                                                          * stream interleave
3903                                                          * on
3904                                                          */
3905                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3906                                                         error = EINVAL;
3907                                                 }
3908                                         }
3909                                         SCTP_INP_WUNLOCK(inp);
3910                                 } else {
3911                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3912                                         error = EINVAL;
3913                                 }
3914                         }
3915                         break;
3916                 }
3917         case SCTP_CMT_ON_OFF:
3918                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3919                         struct sctp_assoc_value *av;
3920
3921                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3922                         if (av->assoc_value > SCTP_CMT_MAX) {
3923                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3924                                 error = EINVAL;
3925                                 break;
3926                         }
3927                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3928                         if (stcb) {
3929                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3930                                 SCTP_TCB_UNLOCK(stcb);
3931                         } else {
3932                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3933                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3934                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3935                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3936                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3937                                         SCTP_INP_WLOCK(inp);
3938                                         inp->sctp_cmt_on_off = av->assoc_value;
3939                                         SCTP_INP_WUNLOCK(inp);
3940                                 }
3941                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3942                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3943                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3944                                         SCTP_INP_RLOCK(inp);
3945                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3946                                                 SCTP_TCB_LOCK(stcb);
3947                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3948                                                 SCTP_TCB_UNLOCK(stcb);
3949                                         }
3950                                         SCTP_INP_RUNLOCK(inp);
3951                                 }
3952                         }
3953                 } else {
3954                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3955                         error = ENOPROTOOPT;
3956                 }
3957                 break;
3958         case SCTP_PLUGGABLE_CC:
3959                 {
3960                         struct sctp_assoc_value *av;
3961                         struct sctp_nets *net;
3962
3963                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3964                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3965                             (av->assoc_value != SCTP_CC_HSTCP) &&
3966                             (av->assoc_value != SCTP_CC_HTCP) &&
3967                             (av->assoc_value != SCTP_CC_RTCC)) {
3968                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3969                                 error = EINVAL;
3970                                 break;
3971                         }
3972                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3973                         if (stcb) {
3974                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3975                                 stcb->asoc.congestion_control_module = av->assoc_value;
3976                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3977                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3978                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3979                                         }
3980                                 }
3981                                 SCTP_TCB_UNLOCK(stcb);
3982                         } else {
3983                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3984                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3985                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3986                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3987                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3988                                         SCTP_INP_WLOCK(inp);
3989                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3990                                         SCTP_INP_WUNLOCK(inp);
3991                                 }
3992                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3993                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3994                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3995                                         SCTP_INP_RLOCK(inp);
3996                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3997                                                 SCTP_TCB_LOCK(stcb);
3998                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3999                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4000                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4001                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4002                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4003                                                         }
4004                                                 }
4005                                                 SCTP_TCB_UNLOCK(stcb);
4006                                         }
4007                                         SCTP_INP_RUNLOCK(inp);
4008                                 }
4009                         }
4010                         break;
4011                 }
4012         case SCTP_CC_OPTION:
4013                 {
4014                         struct sctp_cc_option *cc_opt;
4015
4016                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4017                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4018                         if (stcb == NULL) {
4019                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4020                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4021                                         SCTP_INP_RLOCK(inp);
4022                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4023                                                 SCTP_TCB_LOCK(stcb);
4024                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4025                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4026                                                 }
4027                                                 SCTP_TCB_UNLOCK(stcb);
4028                                         }
4029                                         SCTP_INP_RUNLOCK(inp);
4030                                 } else {
4031                                         error = EINVAL;
4032                                 }
4033                         } else {
4034                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4035                                         error = ENOTSUP;
4036                                 } else {
4037                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4038                                             cc_opt);
4039                                 }
4040                                 SCTP_TCB_UNLOCK(stcb);
4041                         }
4042                         break;
4043                 }
4044         case SCTP_PLUGGABLE_SS:
4045                 {
4046                         struct sctp_assoc_value *av;
4047
4048                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4049                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4050                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4051                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4052                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4053                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4054                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4055                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4056                                 error = EINVAL;
4057                                 break;
4058                         }
4059                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4060                         if (stcb) {
4061                                 SCTP_TCB_SEND_LOCK(stcb);
4062                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4063                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4064                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4065                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4066                                 SCTP_TCB_SEND_UNLOCK(stcb);
4067                                 SCTP_TCB_UNLOCK(stcb);
4068                         } else {
4069                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4070                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4071                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4072                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4073                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4074                                         SCTP_INP_WLOCK(inp);
4075                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4076                                         SCTP_INP_WUNLOCK(inp);
4077                                 }
4078                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4079                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4080                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4081                                         SCTP_INP_RLOCK(inp);
4082                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4083                                                 SCTP_TCB_LOCK(stcb);
4084                                                 SCTP_TCB_SEND_LOCK(stcb);
4085                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4086                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4087                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4088                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4089                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4090                                                 SCTP_TCB_UNLOCK(stcb);
4091                                         }
4092                                         SCTP_INP_RUNLOCK(inp);
4093                                 }
4094                         }
4095                         break;
4096                 }
4097         case SCTP_SS_VALUE:
4098                 {
4099                         struct sctp_stream_value *av;
4100
4101                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4102                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4103                         if (stcb) {
4104                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4105                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4106                                     av->stream_value) < 0)) {
4107                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4108                                         error = EINVAL;
4109                                 }
4110                                 SCTP_TCB_UNLOCK(stcb);
4111                         } else {
4112                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4113                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4114                                         SCTP_INP_RLOCK(inp);
4115                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4116                                                 SCTP_TCB_LOCK(stcb);
4117                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4118                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4119                                                             &stcb->asoc,
4120                                                             &stcb->asoc.strmout[av->stream_id],
4121                                                             av->stream_value);
4122                                                 }
4123                                                 SCTP_TCB_UNLOCK(stcb);
4124                                         }
4125                                         SCTP_INP_RUNLOCK(inp);
4126                                 } else {
4127                                         /*
4128                                          * Can't set stream value without
4129                                          * association
4130                                          */
4131                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4132                                         error = EINVAL;
4133                                 }
4134                         }
4135                         break;
4136                 }
4137         case SCTP_CLR_STAT_LOG:
4138                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4139                 error = EOPNOTSUPP;
4140                 break;
4141         case SCTP_CONTEXT:
4142                 {
4143                         struct sctp_assoc_value *av;
4144
4145                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4146                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4147
4148                         if (stcb) {
4149                                 stcb->asoc.context = av->assoc_value;
4150                                 SCTP_TCB_UNLOCK(stcb);
4151                         } else {
4152                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4153                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4154                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4155                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4156                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4157                                         SCTP_INP_WLOCK(inp);
4158                                         inp->sctp_context = av->assoc_value;
4159                                         SCTP_INP_WUNLOCK(inp);
4160                                 }
4161                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4162                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4163                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4164                                         SCTP_INP_RLOCK(inp);
4165                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4166                                                 SCTP_TCB_LOCK(stcb);
4167                                                 stcb->asoc.context = av->assoc_value;
4168                                                 SCTP_TCB_UNLOCK(stcb);
4169                                         }
4170                                         SCTP_INP_RUNLOCK(inp);
4171                                 }
4172                         }
4173                         break;
4174                 }
4175         case SCTP_VRF_ID:
4176                 {
4177                         uint32_t *default_vrfid;
4178
4179                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4180                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4181                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4182                                 error = EINVAL;
4183                                 break;
4184                         }
4185                         inp->def_vrf_id = *default_vrfid;
4186                         break;
4187                 }
4188         case SCTP_DEL_VRF_ID:
4189                 {
4190                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4191                         error = EOPNOTSUPP;
4192                         break;
4193                 }
4194         case SCTP_ADD_VRF_ID:
4195                 {
4196                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4197                         error = EOPNOTSUPP;
4198                         break;
4199                 }
4200         case SCTP_DELAYED_SACK:
4201                 {
4202                         struct sctp_sack_info *sack;
4203
4204                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4205                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4206                         if (sack->sack_delay) {
4207                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4208                                         error = EINVAL;
4209                                         if (stcb != NULL) {
4210                                                 SCTP_TCB_UNLOCK(stcb);
4211                                         }
4212                                         break;
4213                                 }
4214                         }
4215                         if (stcb) {
4216                                 if (sack->sack_delay) {
4217                                         stcb->asoc.delayed_ack = sack->sack_delay;
4218                                 }
4219                                 if (sack->sack_freq) {
4220                                         stcb->asoc.sack_freq = sack->sack_freq;
4221                                 }
4222                                 SCTP_TCB_UNLOCK(stcb);
4223                         } else {
4224                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4225                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4226                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4227                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4228                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4229                                         SCTP_INP_WLOCK(inp);
4230                                         if (sack->sack_delay) {
4231                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4232                                         }
4233                                         if (sack->sack_freq) {
4234                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4235                                         }
4236                                         SCTP_INP_WUNLOCK(inp);
4237                                 }
4238                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4239                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4240                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4241                                         SCTP_INP_RLOCK(inp);
4242                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4243                                                 SCTP_TCB_LOCK(stcb);
4244                                                 if (sack->sack_delay) {
4245                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4246                                                 }
4247                                                 if (sack->sack_freq) {
4248                                                         stcb->asoc.sack_freq = sack->sack_freq;
4249                                                 }
4250                                                 SCTP_TCB_UNLOCK(stcb);
4251                                         }
4252                                         SCTP_INP_RUNLOCK(inp);
4253                                 }
4254                         }
4255                         break;
4256                 }
4257         case SCTP_AUTH_CHUNK:
4258                 {
4259                         struct sctp_authchunk *sauth;
4260
4261                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4262
4263                         SCTP_INP_WLOCK(inp);
4264                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4265                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4266                                 error = EINVAL;
4267                         } else {
4268                                 inp->auth_supported = 1;
4269                         }
4270                         SCTP_INP_WUNLOCK(inp);
4271                         break;
4272                 }
4273         case SCTP_AUTH_KEY:
4274                 {
4275                         struct sctp_authkey *sca;
4276                         struct sctp_keyhead *shared_keys;
4277                         sctp_sharedkey_t *shared_key;
4278                         sctp_key_t *key = NULL;
4279                         size_t size;
4280
4281                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4282                         if (sca->sca_keylength == 0) {
4283                                 size = optsize - sizeof(struct sctp_authkey);
4284                         } else {
4285                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4286                                         size = sca->sca_keylength;
4287                                 } else {
4288                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4289                                         error = EINVAL;
4290                                         break;
4291                                 }
4292                         }
4293                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4294
4295                         if (stcb) {
4296                                 shared_keys = &stcb->asoc.shared_keys;
4297                                 /* clear the cached keys for this key id */
4298                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4299                                 /*
4300                                  * create the new shared key and
4301                                  * insert/replace it
4302                                  */
4303                                 if (size > 0) {
4304                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4305                                         if (key == NULL) {
4306                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4307                                                 error = ENOMEM;
4308                                                 SCTP_TCB_UNLOCK(stcb);
4309                                                 break;
4310                                         }
4311                                 }
4312                                 shared_key = sctp_alloc_sharedkey();
4313                                 if (shared_key == NULL) {
4314                                         sctp_free_key(key);
4315                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4316                                         error = ENOMEM;
4317                                         SCTP_TCB_UNLOCK(stcb);
4318                                         break;
4319                                 }
4320                                 shared_key->key = key;
4321                                 shared_key->keyid = sca->sca_keynumber;
4322                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4323                                 SCTP_TCB_UNLOCK(stcb);
4324                         } else {
4325                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4326                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4327                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4328                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4329                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4330                                         SCTP_INP_WLOCK(inp);
4331                                         shared_keys = &inp->sctp_ep.shared_keys;
4332                                         /*
4333                                          * clear the cached keys on all
4334                                          * assocs for this key id
4335                                          */
4336                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4337                                         /*
4338                                          * create the new shared key and
4339                                          * insert/replace it
4340                                          */
4341                                         if (size > 0) {
4342                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4343                                                 if (key == NULL) {
4344                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4345                                                         error = ENOMEM;
4346                                                         SCTP_INP_WUNLOCK(inp);
4347                                                         break;
4348                                                 }
4349                                         }
4350                                         shared_key = sctp_alloc_sharedkey();
4351                                         if (shared_key == NULL) {
4352                                                 sctp_free_key(key);
4353                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4354                                                 error = ENOMEM;
4355                                                 SCTP_INP_WUNLOCK(inp);
4356                                                 break;
4357                                         }
4358                                         shared_key->key = key;
4359                                         shared_key->keyid = sca->sca_keynumber;
4360                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4361                                         SCTP_INP_WUNLOCK(inp);
4362                                 }
4363                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4364                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4365                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4366                                         SCTP_INP_RLOCK(inp);
4367                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4368                                                 SCTP_TCB_LOCK(stcb);
4369                                                 shared_keys = &stcb->asoc.shared_keys;
4370                                                 /*
4371                                                  * clear the cached keys for
4372                                                  * this key id
4373                                                  */
4374                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4375                                                 /*
4376                                                  * create the new shared key
4377                                                  * and insert/replace it
4378                                                  */
4379                                                 if (size > 0) {
4380                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4381                                                         if (key == NULL) {
4382                                                                 SCTP_TCB_UNLOCK(stcb);
4383                                                                 continue;
4384                                                         }
4385                                                 }
4386                                                 shared_key = sctp_alloc_sharedkey();
4387                                                 if (shared_key == NULL) {
4388                                                         sctp_free_key(key);
4389                                                         SCTP_TCB_UNLOCK(stcb);
4390                                                         continue;
4391                                                 }
4392                                                 shared_key->key = key;
4393                                                 shared_key->keyid = sca->sca_keynumber;
4394                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4395                                                 SCTP_TCB_UNLOCK(stcb);
4396                                         }
4397                                         SCTP_INP_RUNLOCK(inp);
4398                                 }
4399                         }
4400                         break;
4401                 }
4402         case SCTP_HMAC_IDENT:
4403                 {
4404                         struct sctp_hmacalgo *shmac;
4405                         sctp_hmaclist_t *hmaclist;
4406                         uint16_t hmacid;
4407                         uint32_t i;
4408
4409                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4410                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4411                             (shmac->shmac_number_of_idents > 0xffff)) {
4412                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4413                                 error = EINVAL;
4414                                 break;
4415                         }
4416
4417                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4418                         if (hmaclist == NULL) {
4419                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4420                                 error = ENOMEM;
4421                                 break;
4422                         }
4423                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4424                                 hmacid = shmac->shmac_idents[i];
4425                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4426                                          /* invalid HMACs were found */ ;
4427                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4428                                         error = EINVAL;
4429                                         sctp_free_hmaclist(hmaclist);
4430                                         goto sctp_set_hmac_done;
4431                                 }
4432                         }
4433                         for (i = 0; i < hmaclist->num_algo; i++) {
4434                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4435                                         /* already in list */
4436                                         break;
4437                                 }
4438                         }
4439                         if (i == hmaclist->num_algo) {
4440                                 /* not found in list */
4441                                 sctp_free_hmaclist(hmaclist);
4442                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4443                                 error = EINVAL;
4444                                 break;
4445                         }
4446                         /* set it on the endpoint */
4447                         SCTP_INP_WLOCK(inp);
4448                         if (inp->sctp_ep.local_hmacs)
4449                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4450                         inp->sctp_ep.local_hmacs = hmaclist;
4451                         SCTP_INP_WUNLOCK(inp);
4452         sctp_set_hmac_done:
4453                         break;
4454                 }
4455         case SCTP_AUTH_ACTIVE_KEY:
4456                 {
4457                         struct sctp_authkeyid *scact;
4458
4459                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4460                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4461
4462                         /* set the active key on the right place */
4463                         if (stcb) {
4464                                 /* set the active key on the assoc */
4465                                 if (sctp_auth_setactivekey(stcb,
4466                                     scact->scact_keynumber)) {
4467                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4468                                             SCTP_FROM_SCTP_USRREQ,
4469                                             EINVAL);
4470                                         error = EINVAL;
4471                                 }
4472                                 SCTP_TCB_UNLOCK(stcb);
4473                         } else {
4474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4476                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4477                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4478                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4479                                         SCTP_INP_WLOCK(inp);
4480                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4481                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4482                                                 error = EINVAL;
4483                                         }
4484                                         SCTP_INP_WUNLOCK(inp);
4485                                 }
4486                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4487                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4488                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4489                                         SCTP_INP_RLOCK(inp);
4490                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4491                                                 SCTP_TCB_LOCK(stcb);
4492                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4493                                                 SCTP_TCB_UNLOCK(stcb);
4494                                         }
4495                                         SCTP_INP_RUNLOCK(inp);
4496                                 }
4497                         }
4498                         break;
4499                 }
4500         case SCTP_AUTH_DELETE_KEY:
4501                 {
4502                         struct sctp_authkeyid *scdel;
4503
4504                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4505                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4506
4507                         /* delete the key from the right place */
4508                         if (stcb) {
4509                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4510                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4511                                         error = EINVAL;
4512                                 }
4513                                 SCTP_TCB_UNLOCK(stcb);
4514                         } else {
4515                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4516                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4517                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4518                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4519                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4520                                         SCTP_INP_WLOCK(inp);
4521                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4522                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4523                                                 error = EINVAL;
4524                                         }
4525                                         SCTP_INP_WUNLOCK(inp);
4526                                 }
4527                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4528                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4529                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4530                                         SCTP_INP_RLOCK(inp);
4531                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4532                                                 SCTP_TCB_LOCK(stcb);
4533                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4534                                                 SCTP_TCB_UNLOCK(stcb);
4535                                         }
4536                                         SCTP_INP_RUNLOCK(inp);
4537                                 }
4538                         }
4539                         break;
4540                 }
4541         case SCTP_AUTH_DEACTIVATE_KEY:
4542                 {
4543                         struct sctp_authkeyid *keyid;
4544
4545                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4546                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4547
4548                         /* deactivate the key from the right place */
4549                         if (stcb) {
4550                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4551                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4552                                         error = EINVAL;
4553                                 }
4554                                 SCTP_TCB_UNLOCK(stcb);
4555                         } else {
4556                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4557                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4558                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4559                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4560                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4561                                         SCTP_INP_WLOCK(inp);
4562                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4563                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4564                                                 error = EINVAL;
4565                                         }
4566                                         SCTP_INP_WUNLOCK(inp);
4567                                 }
4568                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4569                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4570                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4571                                         SCTP_INP_RLOCK(inp);
4572                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4573                                                 SCTP_TCB_LOCK(stcb);
4574                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4575                                                 SCTP_TCB_UNLOCK(stcb);
4576                                         }
4577                                         SCTP_INP_RUNLOCK(inp);
4578                                 }
4579                         }
4580                         break;
4581                 }
4582         case SCTP_ENABLE_STREAM_RESET:
4583                 {
4584                         struct sctp_assoc_value *av;
4585
4586                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4587                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4588                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4589                                 error = EINVAL;
4590                                 break;
4591                         }
4592                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4593                         if (stcb) {
4594                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4595                                 SCTP_TCB_UNLOCK(stcb);
4596                         } else {
4597                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4598                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4599                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4600                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4601                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4602                                         SCTP_INP_WLOCK(inp);
4603                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4604                                         SCTP_INP_WUNLOCK(inp);
4605                                 }
4606                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4607                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4608                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4609                                         SCTP_INP_RLOCK(inp);
4610                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4611                                                 SCTP_TCB_LOCK(stcb);
4612                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4613                                                 SCTP_TCB_UNLOCK(stcb);
4614                                         }
4615                                         SCTP_INP_RUNLOCK(inp);
4616                                 }
4617                         }
4618                         break;
4619                 }
4620         case SCTP_RESET_STREAMS:
4621                 {
4622                         struct sctp_reset_streams *strrst;
4623                         int i, send_out = 0;
4624                         int send_in = 0;
4625
4626                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4627                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4628                         if (stcb == NULL) {
4629                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4630                                 error = ENOENT;
4631                                 break;
4632                         }
4633                         if (stcb->asoc.reconfig_supported == 0) {
4634                                 /*
4635                                  * Peer does not support the chunk type.
4636                                  */
4637                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4638                                 error = EOPNOTSUPP;
4639                                 SCTP_TCB_UNLOCK(stcb);
4640                                 break;
4641                         }
4642                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4643                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4644                                 error = EINVAL;
4645                                 SCTP_TCB_UNLOCK(stcb);
4646                                 break;
4647                         }
4648                         if (sizeof(struct sctp_reset_streams) +
4649                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4650                                 error = EINVAL;
4651                                 SCTP_TCB_UNLOCK(stcb);
4652                                 break;
4653                         }
4654                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4655                                 send_in = 1;
4656                                 if (stcb->asoc.stream_reset_outstanding) {
4657                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4658                                         error = EALREADY;
4659                                         SCTP_TCB_UNLOCK(stcb);
4660                                         break;
4661                                 }
4662                         }
4663                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4664                                 send_out = 1;
4665                         }
4666                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4668                                 error = ENOMEM;
4669                                 SCTP_TCB_UNLOCK(stcb);
4670                                 break;
4671                         }
4672                         if ((send_in == 0) && (send_out == 0)) {
4673                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4674                                 error = EINVAL;
4675                                 SCTP_TCB_UNLOCK(stcb);
4676                                 break;
4677                         }
4678                         for (i = 0; i < strrst->srs_number_streams; i++) {
4679                                 if ((send_in) &&
4680                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4681                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4682                                         error = EINVAL;
4683                                         break;
4684                                 }
4685                                 if ((send_out) &&
4686                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4687                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4688                                         error = EINVAL;
4689                                         break;
4690                                 }
4691                         }
4692                         if (error) {
4693                                 SCTP_TCB_UNLOCK(stcb);
4694                                 break;
4695                         }
4696                         if (send_out) {
4697                                 int cnt;
4698                                 uint16_t strm;
4699
4700                                 if (strrst->srs_number_streams) {
4701                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4702                                                 strm = strrst->srs_stream_list[i];
4703                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4704                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4705                                                         cnt++;
4706                                                 }
4707                                         }
4708                                 } else {
4709                                         /* Its all */
4710                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4711                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4712                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4713                                                         cnt++;
4714                                                 }
4715                                         }
4716                                 }
4717                         }
4718                         if (send_in) {
4719                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4720                                     strrst->srs_stream_list,
4721                                     send_in, 0, 0, 0, 0, 0);
4722                         } else {
4723                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4724                         }
4725                         if (error == 0) {
4726                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4727                         } else {
4728                                 /*
4729                                  * For outgoing streams don't report any
4730                                  * problems in sending the request to the
4731                                  * application. XXX: Double check resetting
4732                                  * incoming streams.
4733                                  */
4734                                 error = 0;
4735                         }
4736                         SCTP_TCB_UNLOCK(stcb);
4737                         break;
4738                 }
4739         case SCTP_ADD_STREAMS:
4740                 {
4741                         struct sctp_add_streams *stradd;
4742                         uint8_t addstream = 0;
4743                         uint16_t add_o_strmcnt = 0;
4744                         uint16_t add_i_strmcnt = 0;
4745
4746                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4747                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4748                         if (stcb == NULL) {
4749                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4750                                 error = ENOENT;
4751                                 break;
4752                         }
4753                         if (stcb->asoc.reconfig_supported == 0) {
4754                                 /*
4755                                  * Peer does not support the chunk type.
4756                                  */
4757                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4758                                 error = EOPNOTSUPP;
4759                                 SCTP_TCB_UNLOCK(stcb);
4760                                 break;
4761                         }
4762                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4763                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4764                                 error = EINVAL;
4765                                 SCTP_TCB_UNLOCK(stcb);
4766                                 break;
4767                         }
4768                         if (stcb->asoc.stream_reset_outstanding) {
4769                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4770                                 error = EALREADY;
4771                                 SCTP_TCB_UNLOCK(stcb);
4772                                 break;
4773                         }
4774                         if ((stradd->sas_outstrms == 0) &&
4775                             (stradd->sas_instrms == 0)) {
4776                                 error = EINVAL;
4777                                 goto skip_stuff;
4778                         }
4779                         if (stradd->sas_outstrms) {
4780                                 addstream = 1;
4781                                 /* We allocate here */
4782                                 add_o_strmcnt = stradd->sas_outstrms;
4783                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4784                                         /* You can't have more than 64k */
4785                                         error = EINVAL;
4786                                         goto skip_stuff;
4787                                 }
4788                         }
4789                         if (stradd->sas_instrms) {
4790                                 int cnt;
4791
4792                                 addstream |= 2;
4793                                 /*
4794                                  * We allocate inside
4795                                  * sctp_send_str_reset_req()
4796                                  */
4797                                 add_i_strmcnt = stradd->sas_instrms;
4798                                 cnt = add_i_strmcnt;
4799                                 cnt += stcb->asoc.streamincnt;
4800                                 if (cnt > 0x0000ffff) {
4801                                         /* You can't have more than 64k */
4802                                         error = EINVAL;
4803                                         goto skip_stuff;
4804                                 }
4805                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4806                                         /* More than you are allowed */
4807                                         error = EINVAL;
4808                                         goto skip_stuff;
4809                                 }
4810                         }
4811                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4812                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4813         skip_stuff:
4814                         SCTP_TCB_UNLOCK(stcb);
4815                         break;
4816                 }
4817         case SCTP_RESET_ASSOC:
4818                 {
4819                         int i;
4820                         uint32_t *value;
4821
4822                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4823                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4824                         if (stcb == NULL) {
4825                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4826                                 error = ENOENT;
4827                                 break;
4828                         }
4829                         if (stcb->asoc.reconfig_supported == 0) {
4830                                 /*
4831                                  * Peer does not support the chunk type.
4832                                  */
4833                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4834                                 error = EOPNOTSUPP;
4835                                 SCTP_TCB_UNLOCK(stcb);
4836                                 break;
4837                         }
4838                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4839                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4840                                 error = EINVAL;
4841                                 SCTP_TCB_UNLOCK(stcb);
4842                                 break;
4843                         }
4844                         if (stcb->asoc.stream_reset_outstanding) {
4845                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4846                                 error = EALREADY;
4847                                 SCTP_TCB_UNLOCK(stcb);
4848                                 break;
4849                         }
4850                         /*
4851                          * Is there any data pending in the send or sent
4852                          * queues?
4853                          */
4854                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4855                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4856                 busy_out:
4857                                 error = EBUSY;
4858                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4859                                 SCTP_TCB_UNLOCK(stcb);
4860                                 break;
4861                         }
4862                         /* Do any streams have data queued? */
4863                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4864                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4865                                         goto busy_out;
4866                                 }
4867                         }
4868                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4869                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4870                         SCTP_TCB_UNLOCK(stcb);
4871                         break;
4872                 }
4873         case SCTP_CONNECT_X:
4874                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4875                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4876                         error = EINVAL;
4877                         break;
4878                 }
4879                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4880                 break;
4881         case SCTP_CONNECT_X_DELAYED:
4882                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4883                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4884                         error = EINVAL;
4885                         break;
4886                 }
4887                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4888                 break;
4889         case SCTP_CONNECT_X_COMPLETE:
4890                 {
4891                         struct sockaddr *sa;
4892
4893                         /* FIXME MT: check correct? */
4894                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4895
4896                         /* find tcb */
4897                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4898                                 SCTP_INP_RLOCK(inp);
4899                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4900                                 if (stcb) {
4901                                         SCTP_TCB_LOCK(stcb);
4902                                 }
4903                                 SCTP_INP_RUNLOCK(inp);
4904                         } else {
4905                                 /*
4906                                  * We increment here since
4907                                  * sctp_findassociation_ep_addr() wil do a
4908                                  * decrement if it finds the stcb as long as
4909                                  * the locked tcb (last argument) is NOT a
4910                                  * TCB.. aka NULL.
4911                                  */
4912                                 SCTP_INP_INCR_REF(inp);
4913                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4914                                 if (stcb == NULL) {
4915                                         SCTP_INP_DECR_REF(inp);
4916                                 }
4917                         }
4918
4919                         if (stcb == NULL) {
4920                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4921                                 error = ENOENT;
4922                                 break;
4923                         }
4924                         if (stcb->asoc.delayed_connection == 1) {
4925                                 stcb->asoc.delayed_connection = 0;
4926                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4927                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4928                                     stcb->asoc.primary_destination,
4929                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4930                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4931                         } else {
4932                                 /*
4933                                  * already expired or did not use delayed
4934                                  * connectx
4935                                  */
4936                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4937                                 error = EALREADY;
4938                         }
4939                         SCTP_TCB_UNLOCK(stcb);
4940                         break;
4941                 }
4942         case SCTP_MAX_BURST:
4943                 {
4944                         struct sctp_assoc_value *av;
4945
4946                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4947                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4948
4949                         if (stcb) {
4950                                 stcb->asoc.max_burst = av->assoc_value;
4951                                 SCTP_TCB_UNLOCK(stcb);
4952                         } else {
4953                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4954                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4955                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4956                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4957                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4958                                         SCTP_INP_WLOCK(inp);
4959                                         inp->sctp_ep.max_burst = av->assoc_value;
4960                                         SCTP_INP_WUNLOCK(inp);
4961                                 }
4962                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4963                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4964                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4965                                         SCTP_INP_RLOCK(inp);
4966                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4967                                                 SCTP_TCB_LOCK(stcb);
4968                                                 stcb->asoc.max_burst = av->assoc_value;
4969                                                 SCTP_TCB_UNLOCK(stcb);
4970                                         }
4971                                         SCTP_INP_RUNLOCK(inp);
4972                                 }
4973                         }
4974                         break;
4975                 }
4976         case SCTP_MAXSEG:
4977                 {
4978                         struct sctp_assoc_value *av;
4979                         int ovh;
4980
4981                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4982                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4983
4984                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4985                                 ovh = SCTP_MED_OVERHEAD;
4986                         } else {
4987                                 ovh = SCTP_MED_V4_OVERHEAD;
4988                         }
4989                         if (stcb) {
4990                                 if (av->assoc_value) {
4991                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4992                                 } else {
4993                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4994                                 }
4995                                 SCTP_TCB_UNLOCK(stcb);
4996                         } else {
4997                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4998                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4999                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5000                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
5001                                         SCTP_INP_WLOCK(inp);
5002                                         /*
5003                                          * FIXME MT: I think this is not in
5004                                          * tune with the API ID
5005                                          */
5006                                         if (av->assoc_value) {
5007                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
5008                                         } else {
5009                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5010                                         }
5011                                         SCTP_INP_WUNLOCK(inp);
5012                                 } else {
5013                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5014                                         error = EINVAL;
5015                                 }
5016                         }
5017                         break;
5018                 }
5019         case SCTP_EVENTS:
5020                 {
5021                         struct sctp_event_subscribe *events;
5022
5023                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5024
5025                         SCTP_INP_WLOCK(inp);
5026                         if (events->sctp_data_io_event) {
5027                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5028                         } else {
5029                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5030                         }
5031
5032                         if (events->sctp_association_event) {
5033                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5034                         } else {
5035                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5036                         }
5037
5038                         if (events->sctp_address_event) {
5039                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5040                         } else {
5041                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5042                         }
5043
5044                         if (events->sctp_send_failure_event) {
5045                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5046                         } else {
5047                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5048                         }
5049
5050                         if (events->sctp_peer_error_event) {
5051                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5052                         } else {
5053                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5054                         }
5055
5056                         if (events->sctp_shutdown_event) {
5057                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5058                         } else {
5059                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5060                         }
5061
5062                         if (events->sctp_partial_delivery_event) {
5063                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5064                         } else {
5065                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5066                         }
5067
5068                         if (events->sctp_adaptation_layer_event) {
5069                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5070                         } else {
5071                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5072                         }
5073
5074                         if (events->sctp_authentication_event) {
5075                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5076                         } else {
5077                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5078                         }
5079
5080                         if (events->sctp_sender_dry_event) {
5081                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5082                         } else {
5083                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5084                         }
5085
5086                         if (events->sctp_stream_reset_event) {
5087                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5088                         } else {
5089                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5090                         }
5091                         SCTP_INP_WUNLOCK(inp);
5092
5093                         SCTP_INP_RLOCK(inp);
5094                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5095                                 SCTP_TCB_LOCK(stcb);
5096                                 if (events->sctp_association_event) {
5097                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5098                                 } else {
5099                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5100                                 }
5101                                 if (events->sctp_address_event) {
5102                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5103                                 } else {
5104                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5105                                 }
5106                                 if (events->sctp_send_failure_event) {
5107                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5108                                 } else {
5109                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5110                                 }
5111                                 if (events->sctp_peer_error_event) {
5112                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5113                                 } else {
5114                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5115                                 }
5116                                 if (events->sctp_shutdown_event) {
5117                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5118                                 } else {
5119                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5120                                 }
5121                                 if (events->sctp_partial_delivery_event) {
5122                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5123                                 } else {
5124                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5125                                 }
5126                                 if (events->sctp_adaptation_layer_event) {
5127                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5128                                 } else {
5129                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5130                                 }
5131                                 if (events->sctp_authentication_event) {
5132                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5133                                 } else {
5134                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5135                                 }
5136                                 if (events->sctp_sender_dry_event) {
5137                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5138                                 } else {
5139                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5140                                 }
5141                                 if (events->sctp_stream_reset_event) {
5142                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5143                                 } else {
5144                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5145                                 }
5146                                 SCTP_TCB_UNLOCK(stcb);
5147                         }
5148                         /*
5149                          * Send up the sender dry event only for 1-to-1
5150                          * style sockets.
5151                          */
5152                         if (events->sctp_sender_dry_event) {
5153                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5154                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5155                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5156                                         if (stcb) {
5157                                                 SCTP_TCB_LOCK(stcb);
5158                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5159                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5160                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5161                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5162                                                 }
5163                                                 SCTP_TCB_UNLOCK(stcb);
5164                                         }
5165                                 }
5166                         }
5167                         SCTP_INP_RUNLOCK(inp);
5168                         break;
5169                 }
5170         case SCTP_ADAPTATION_LAYER:
5171                 {
5172                         struct sctp_setadaptation *adap_bits;
5173
5174                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5175                         SCTP_INP_WLOCK(inp);
5176                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5177                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5178                         SCTP_INP_WUNLOCK(inp);
5179                         break;
5180                 }
5181 #ifdef SCTP_DEBUG
5182         case SCTP_SET_INITIAL_DBG_SEQ:
5183                 {
5184                         uint32_t *vvv;
5185
5186                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5187                         SCTP_INP_WLOCK(inp);
5188                         inp->sctp_ep.initial_sequence_debug = *vvv;
5189                         SCTP_INP_WUNLOCK(inp);
5190                         break;
5191                 }
5192 #endif
5193         case SCTP_DEFAULT_SEND_PARAM:
5194                 {
5195                         struct sctp_sndrcvinfo *s_info;
5196
5197                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5198                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5199
5200                         if (stcb) {
5201                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5202                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5203                                 } else {
5204                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5205                                         error = EINVAL;
5206                                 }
5207                                 SCTP_TCB_UNLOCK(stcb);
5208                         } else {
5209                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5210                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5211                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5212                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5213                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5214                                         SCTP_INP_WLOCK(inp);
5215                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5216                                         SCTP_INP_WUNLOCK(inp);
5217                                 }
5218                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5219                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5220                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5221                                         SCTP_INP_RLOCK(inp);
5222                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5223                                                 SCTP_TCB_LOCK(stcb);
5224                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5225                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5226                                                 }
5227                                                 SCTP_TCB_UNLOCK(stcb);
5228                                         }
5229                                         SCTP_INP_RUNLOCK(inp);
5230                                 }
5231                         }
5232                         break;
5233                 }
5234         case SCTP_PEER_ADDR_PARAMS:
5235                 {
5236                         struct sctp_paddrparams *paddrp;
5237                         struct sctp_nets *net;
5238                         struct sockaddr *addr;
5239 #if defined(INET) && defined(INET6)
5240                         struct sockaddr_in sin_store;
5241 #endif
5242
5243                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5244                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5245
5246 #if defined(INET) && defined(INET6)
5247                         if (paddrp->spp_address.ss_family == AF_INET6) {
5248                                 struct sockaddr_in6 *sin6;
5249
5250                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5251                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5252                                         in6_sin6_2_sin(&sin_store, sin6);
5253                                         addr = (struct sockaddr *)&sin_store;
5254                                 } else {
5255                                         addr = (struct sockaddr *)&paddrp->spp_address;
5256                                 }
5257                         } else {
5258                                 addr = (struct sockaddr *)&paddrp->spp_address;
5259                         }
5260 #else
5261                         addr = (struct sockaddr *)&paddrp->spp_address;
5262 #endif
5263                         if (stcb != NULL) {
5264                                 net = sctp_findnet(stcb, addr);
5265                         } else {
5266                                 /*
5267                                  * We increment here since
5268                                  * sctp_findassociation_ep_addr() wil do a
5269                                  * decrement if it finds the stcb as long as
5270                                  * the locked tcb (last argument) is NOT a
5271                                  * TCB.. aka NULL.
5272                                  */
5273                                 net = NULL;
5274                                 SCTP_INP_INCR_REF(inp);
5275                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5276                                     &net, NULL, NULL);
5277                                 if (stcb == NULL) {
5278                                         SCTP_INP_DECR_REF(inp);
5279                                 }
5280                         }
5281                         if ((stcb != NULL) && (net == NULL)) {
5282 #ifdef INET
5283                                 if (addr->sa_family == AF_INET) {
5284                                         struct sockaddr_in *sin;
5285
5286                                         sin = (struct sockaddr_in *)addr;
5287                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5288                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5289                                                 SCTP_TCB_UNLOCK(stcb);
5290                                                 error = EINVAL;
5291                                                 break;
5292                                         }
5293                                 } else
5294 #endif
5295 #ifdef INET6
5296                                 if (addr->sa_family == AF_INET6) {
5297                                         struct sockaddr_in6 *sin6;
5298
5299                                         sin6 = (struct sockaddr_in6 *)addr;
5300                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5301                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5302                                                 SCTP_TCB_UNLOCK(stcb);
5303                                                 error = EINVAL;
5304                                                 break;
5305                                         }
5306                                 } else
5307 #endif
5308                                 {
5309                                         error = EAFNOSUPPORT;
5310                                         SCTP_TCB_UNLOCK(stcb);
5311                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5312                                         break;
5313                                 }
5314                         }
5315                         /* sanity checks */
5316                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5317                                 if (stcb)
5318                                         SCTP_TCB_UNLOCK(stcb);
5319                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5320                                 return (EINVAL);
5321                         }
5322
5323                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5324                                 if (stcb)
5325                                         SCTP_TCB_UNLOCK(stcb);
5326                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5327                                 return (EINVAL);
5328                         }
5329                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5330                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5331                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5332                                 if (stcb)
5333                                         SCTP_TCB_UNLOCK(stcb);
5334                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5335                                 return (EINVAL);
5336                         }
5337
5338                         if (stcb != NULL) {
5339                                 /************************TCB SPECIFIC SET ******************/
5340                                 if (net != NULL) {
5341                                         /************************NET SPECIFIC SET ******************/
5342                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5343                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5344                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5345                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5346                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5347                                                 }
5348                                                 net->dest_state |= SCTP_ADDR_NOHB;
5349                                         }
5350                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5351                                                 if (paddrp->spp_hbinterval) {
5352                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5353                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5354                                                         net->heart_beat_delay = 0;
5355                                                 }
5356                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5357                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5358                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5359                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5360                                         }
5361                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5362                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5363                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5364                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5365                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5366                                                 }
5367                                         }
5368                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5369                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5370                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5371                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5372                                                 }
5373                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5374                                                 net->mtu = paddrp->spp_pathmtu;
5375                                                 switch (net->ro._l_addr.sa.sa_family) {
5376 #ifdef INET
5377                                                 case AF_INET:
5378                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5379                                                         break;
5380 #endif
5381 #ifdef INET6
5382                                                 case AF_INET6:
5383                                                         net->mtu += SCTP_MIN_OVERHEAD;
5384                                                         break;
5385 #endif
5386                                                 default:
5387                                                         break;
5388                                                 }
5389                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5390                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5391                                                 }
5392                                         }
5393                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5394                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5395                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5396                                                 }
5397                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5398                                         }
5399                                         if (paddrp->spp_pathmaxrxt) {
5400                                                 if (net->dest_state & SCTP_ADDR_PF) {
5401                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5402                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5403                                                         }
5404                                                 } else {
5405                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5406                                                             (net->error_count > net->pf_threshold)) {
5407                                                                 net->dest_state |= SCTP_ADDR_PF;
5408                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5409                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5410                                                                     stcb->sctp_ep, stcb, net,
5411                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5412                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5413                                                         }
5414                                                 }
5415                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5416                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5417                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5418                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5419                                                         }
5420                                                 } else {
5421                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5422                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5423                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5424                                                         }
5425                                                 }
5426                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5427                                         }
5428                                         if (paddrp->spp_flags & SPP_DSCP) {
5429                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5430                                                 net->dscp |= 0x01;
5431                                         }
5432 #ifdef INET6
5433                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5434                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5435                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5436                                                         net->flowlabel |= 0x80000000;
5437                                                 }
5438                                         }
5439 #endif
5440                                 } else {
5441                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5442                                         if (paddrp->spp_pathmaxrxt != 0) {
5443                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5444                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5445                                                         if (net->dest_state & SCTP_ADDR_PF) {
5446                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5447                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5448                                                                 }
5449                                                         } else {
5450                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5451                                                                     (net->error_count > net->pf_threshold)) {
5452                                                                         net->dest_state |= SCTP_ADDR_PF;
5453                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5454                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5455                                                                             stcb->sctp_ep, stcb, net,
5456                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5457                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5458                                                                 }
5459                                                         }
5460                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5461                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5462                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5463                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5464                                                                 }
5465                                                         } else {
5466                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5467                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5468                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5469                                                                 }
5470                                                         }
5471                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5472                                                 }
5473                                         }
5474
5475                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5476                                                 if (paddrp->spp_hbinterval != 0) {
5477                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5478                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5479                                                         stcb->asoc.heart_beat_delay = 0;
5480                                                 }
5481                                                 /* Turn back on the timer */
5482                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5483                                                         if (paddrp->spp_hbinterval != 0) {
5484                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5485                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5486                                                                 net->heart_beat_delay = 0;
5487                                                         }
5488                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5489                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5490                                                         }
5491                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5492                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5493                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5494                                                 }
5495                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5496                                         }
5497                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5498                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5499                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5500                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5501                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5502                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5503                                                                             inp, stcb, net,
5504                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5505                                                                 }
5506                                                         }
5507                                                 }
5508                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5509                                         }
5510                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5511                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5512                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5513                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5514                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5515                                                         }
5516                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5517                                                         net->mtu = paddrp->spp_pathmtu;
5518                                                         switch (net->ro._l_addr.sa.sa_family) {
5519 #ifdef INET
5520                                                         case AF_INET:
5521                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5522                                                                 break;
5523 #endif
5524 #ifdef INET6
5525                                                         case AF_INET6:
5526                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5527                                                                 break;
5528 #endif
5529                                                         default:
5530                                                                 break;
5531                                                         }
5532                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5533                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5534                                                         }
5535                                                 }
5536                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5537                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5538                                         }
5539                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5540                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5541                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5542                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5543                                                         }
5544                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5545                                                 }
5546                                                 stcb->asoc.default_mtu = 0;
5547                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5548                                         }
5549                                         if (paddrp->spp_flags & SPP_DSCP) {
5550                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5551                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5552                                                         net->dscp |= 0x01;
5553                                                 }
5554                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5555                                                 stcb->asoc.default_dscp |= 0x01;
5556                                         }
5557 #ifdef INET6
5558                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5559                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5560                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5561                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5562                                                                 net->flowlabel |= 0x80000000;
5563                                                         }
5564                                                 }
5565                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5566                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5567                                         }
5568 #endif
5569                                 }
5570                                 SCTP_TCB_UNLOCK(stcb);
5571                         } else {
5572                                 /************************NO TCB, SET TO default stuff ******************/
5573                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5574                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5575                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5576                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5577                                         SCTP_INP_WLOCK(inp);
5578                                         /*
5579                                          * For the TOS/FLOWLABEL stuff you
5580                                          * set it with the options on the
5581                                          * socket
5582                                          */
5583                                         if (paddrp->spp_pathmaxrxt != 0) {
5584                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5585                                         }
5586
5587                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5588                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5589                                         else if (paddrp->spp_hbinterval != 0) {
5590                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5591                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5592                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5593                                         }
5594
5595                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5596                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5597                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5598                                                 } else if (paddrp->spp_hbinterval) {
5599                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5600                                                 }
5601                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5602                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5603                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5604                                         }
5605                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5606                                                 inp->sctp_ep.default_mtu = 0;
5607                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5608                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5609                                                 inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5610                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5611                                         }
5612                                         if (paddrp->spp_flags & SPP_DSCP) {
5613                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5614                                                 inp->sctp_ep.default_dscp |= 0x01;
5615                                         }
5616 #ifdef INET6
5617                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5618                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5619                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5620                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5621                                                 }
5622                                         }
5623 #endif
5624                                         SCTP_INP_WUNLOCK(inp);
5625                                 } else {
5626                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5627                                         error = EINVAL;
5628                                 }
5629                         }
5630                         break;
5631                 }
5632         case SCTP_RTOINFO:
5633                 {
5634                         struct sctp_rtoinfo *srto;
5635                         uint32_t new_init, new_min, new_max;
5636
5637                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5638                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5639
5640                         if (stcb) {
5641                                 if (srto->srto_initial)
5642                                         new_init = srto->srto_initial;
5643                                 else
5644                                         new_init = stcb->asoc.initial_rto;
5645                                 if (srto->srto_max)
5646                                         new_max = srto->srto_max;
5647                                 else
5648                                         new_max = stcb->asoc.maxrto;
5649                                 if (srto->srto_min)
5650                                         new_min = srto->srto_min;
5651                                 else
5652                                         new_min = stcb->asoc.minrto;
5653                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5654                                         stcb->asoc.initial_rto = new_init;
5655                                         stcb->asoc.maxrto = new_max;
5656                                         stcb->asoc.minrto = new_min;
5657                                 } else {
5658                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5659                                         error = EINVAL;
5660                                 }
5661                                 SCTP_TCB_UNLOCK(stcb);
5662                         } else {
5663                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5664                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5665                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5666                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5667                                         SCTP_INP_WLOCK(inp);
5668                                         if (srto->srto_initial)
5669                                                 new_init = srto->srto_initial;
5670                                         else
5671                                                 new_init = inp->sctp_ep.initial_rto;
5672                                         if (srto->srto_max)
5673                                                 new_max = srto->srto_max;
5674                                         else
5675                                                 new_max = inp->sctp_ep.sctp_maxrto;
5676                                         if (srto->srto_min)
5677                                                 new_min = srto->srto_min;
5678                                         else
5679                                                 new_min = inp->sctp_ep.sctp_minrto;
5680                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5681                                                 inp->sctp_ep.initial_rto = new_init;
5682                                                 inp->sctp_ep.sctp_maxrto = new_max;
5683                                                 inp->sctp_ep.sctp_minrto = new_min;
5684                                         } else {
5685                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5686                                                 error = EINVAL;
5687                                         }
5688                                         SCTP_INP_WUNLOCK(inp);
5689                                 } else {
5690                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5691                                         error = EINVAL;
5692                                 }
5693                         }
5694                         break;
5695                 }
5696         case SCTP_ASSOCINFO:
5697                 {
5698                         struct sctp_assocparams *sasoc;
5699
5700                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5701                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5702                         if (sasoc->sasoc_cookie_life > 0) {
5703                                 /* boundary check the cookie life */
5704                                 if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
5705                                         sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
5706                                 }
5707                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5708                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5709                                 }
5710                         }
5711                         if (stcb) {
5712                                 if (sasoc->sasoc_asocmaxrxt > 0) {
5713                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5714                                 }
5715                                 if (sasoc->sasoc_cookie_life > 0) {
5716                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5717                                 }
5718                                 SCTP_TCB_UNLOCK(stcb);
5719                         } else {
5720                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5721                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5722                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5723                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5724                                         SCTP_INP_WLOCK(inp);
5725                                         if (sasoc->sasoc_asocmaxrxt > 0) {
5726                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5727                                         }
5728                                         if (sasoc->sasoc_cookie_life > 0) {
5729                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5730                                         }
5731                                         SCTP_INP_WUNLOCK(inp);
5732                                 } else {
5733                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5734                                         error = EINVAL;
5735                                 }
5736                         }
5737                         break;
5738                 }
5739         case SCTP_INITMSG:
5740                 {
5741                         struct sctp_initmsg *sinit;
5742
5743                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5744                         SCTP_INP_WLOCK(inp);
5745                         if (sinit->sinit_num_ostreams)
5746                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5747
5748                         if (sinit->sinit_max_instreams)
5749                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5750
5751                         if (sinit->sinit_max_attempts)
5752                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5753
5754                         if (sinit->sinit_max_init_timeo)
5755                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5756                         SCTP_INP_WUNLOCK(inp);
5757                         break;
5758                 }
5759         case SCTP_PRIMARY_ADDR:
5760                 {
5761                         struct sctp_setprim *spa;
5762                         struct sctp_nets *net;
5763                         struct sockaddr *addr;
5764 #if defined(INET) && defined(INET6)
5765                         struct sockaddr_in sin_store;
5766 #endif
5767
5768                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5769                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5770
5771 #if defined(INET) && defined(INET6)
5772                         if (spa->ssp_addr.ss_family == AF_INET6) {
5773                                 struct sockaddr_in6 *sin6;
5774
5775                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5776                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5777                                         in6_sin6_2_sin(&sin_store, sin6);
5778                                         addr = (struct sockaddr *)&sin_store;
5779                                 } else {
5780                                         addr = (struct sockaddr *)&spa->ssp_addr;
5781                                 }
5782                         } else {
5783                                 addr = (struct sockaddr *)&spa->ssp_addr;
5784                         }
5785 #else
5786                         addr = (struct sockaddr *)&spa->ssp_addr;
5787 #endif
5788                         if (stcb != NULL) {
5789                                 net = sctp_findnet(stcb, addr);
5790                         } else {
5791                                 /*
5792                                  * We increment here since
5793                                  * sctp_findassociation_ep_addr() wil do a
5794                                  * decrement if it finds the stcb as long as
5795                                  * the locked tcb (last argument) is NOT a
5796                                  * TCB.. aka NULL.
5797                                  */
5798                                 net = NULL;
5799                                 SCTP_INP_INCR_REF(inp);
5800                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5801                                     &net, NULL, NULL);
5802                                 if (stcb == NULL) {
5803                                         SCTP_INP_DECR_REF(inp);
5804                                 }
5805                         }
5806
5807                         if ((stcb != NULL) && (net != NULL)) {
5808                                 if (net != stcb->asoc.primary_destination) {
5809                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5810                                                 /* Ok we need to set it */
5811                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5812                                                         if ((stcb->asoc.alternate) &&
5813                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5814                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5815                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5816                                                                 stcb->asoc.alternate = NULL;
5817                                                         }
5818                                                 } else {
5819                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5820                                                         error = EINVAL;
5821                                                 }
5822                                         } else {
5823                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5824                                                 error = EINVAL;
5825                                         }
5826                                 }
5827                         } else {
5828                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5829                                 error = EINVAL;
5830                         }
5831                         if (stcb != NULL) {
5832                                 SCTP_TCB_UNLOCK(stcb);
5833                         }
5834                         break;
5835                 }
5836         case SCTP_SET_DYNAMIC_PRIMARY:
5837                 {
5838                         union sctp_sockstore *ss;
5839
5840                         error = priv_check(curthread,
5841                             PRIV_NETINET_RESERVEDPORT);
5842                         if (error)
5843                                 break;
5844
5845                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5846                         /* SUPER USER CHECK? */
5847                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5848                         break;
5849                 }
5850         case SCTP_SET_PEER_PRIMARY_ADDR:
5851                 {
5852                         struct sctp_setpeerprim *sspp;
5853                         struct sockaddr *addr;
5854 #if defined(INET) && defined(INET6)
5855                         struct sockaddr_in sin_store;
5856 #endif
5857
5858                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5859                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5860                         if (stcb != NULL) {
5861                                 struct sctp_ifa *ifa;
5862
5863 #if defined(INET) && defined(INET6)
5864                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5865                                         struct sockaddr_in6 *sin6;
5866
5867                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5868                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5869                                                 in6_sin6_2_sin(&sin_store, sin6);
5870                                                 addr = (struct sockaddr *)&sin_store;
5871                                         } else {
5872                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5873                                         }
5874                                 } else {
5875                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5876                                 }
5877 #else
5878                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5879 #endif
5880                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5881                                 if (ifa == NULL) {
5882                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5883                                         error = EINVAL;
5884                                         goto out_of_it;
5885                                 }
5886                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5887                                         /*
5888                                          * Must validate the ifa found is in
5889                                          * our ep
5890                                          */
5891                                         struct sctp_laddr *laddr;
5892                                         int found = 0;
5893
5894                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5895                                                 if (laddr->ifa == NULL) {
5896                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5897                                                             __func__);
5898                                                         continue;
5899                                                 }
5900                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5901                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5902                                                         continue;
5903                                                 }
5904                                                 if (laddr->ifa == ifa) {
5905                                                         found = 1;
5906                                                         break;
5907                                                 }
5908                                         }
5909                                         if (!found) {
5910                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5911                                                 error = EINVAL;
5912                                                 goto out_of_it;
5913                                         }
5914                                 } else {
5915                                         switch (addr->sa_family) {
5916 #ifdef INET
5917                                         case AF_INET:
5918                                                 {
5919                                                         struct sockaddr_in *sin;
5920
5921                                                         sin = (struct sockaddr_in *)addr;
5922                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5923                                                             &sin->sin_addr) != 0) {
5924                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5925                                                                 error = EINVAL;
5926                                                                 goto out_of_it;
5927                                                         }
5928                                                         break;
5929                                                 }
5930 #endif
5931 #ifdef INET6
5932                                         case AF_INET6:
5933                                                 {
5934                                                         struct sockaddr_in6 *sin6;
5935
5936                                                         sin6 = (struct sockaddr_in6 *)addr;
5937                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5938                                                             &sin6->sin6_addr) != 0) {
5939                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5940                                                                 error = EINVAL;
5941                                                                 goto out_of_it;
5942                                                         }
5943                                                         break;
5944                                                 }
5945 #endif
5946                                         default:
5947                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5948                                                 error = EINVAL;
5949                                                 goto out_of_it;
5950                                         }
5951                                 }
5952                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5953                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5954                                         error = EINVAL;
5955                                 }
5956                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5957                 out_of_it:
5958                                 SCTP_TCB_UNLOCK(stcb);
5959                         } else {
5960                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5961                                 error = EINVAL;
5962                         }
5963                         break;
5964                 }
5965         case SCTP_BINDX_ADD_ADDR:
5966                 {
5967                         struct sockaddr *sa;
5968                         struct thread *td;
5969
5970                         td = (struct thread *)p;
5971                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5972 #ifdef INET
5973                         if (sa->sa_family == AF_INET) {
5974                                 if (optsize < sizeof(struct sockaddr_in)) {
5975                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5976                                         error = EINVAL;
5977                                         break;
5978                                 }
5979                                 if (td != NULL &&
5980                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
5981                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5982                                         break;
5983                                 }
5984                         } else
5985 #endif
5986 #ifdef INET6
5987                         if (sa->sa_family == AF_INET6) {
5988                                 if (optsize < sizeof(struct sockaddr_in6)) {
5989                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5990                                         error = EINVAL;
5991                                         break;
5992                                 }
5993                                 if (td != NULL &&
5994                                     (error = prison_local_ip6(td->td_ucred,
5995                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
5996                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5997                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5998                                         break;
5999                                 }
6000                         } else
6001 #endif
6002                         {
6003                                 error = EAFNOSUPPORT;
6004                                 break;
6005                         }
6006                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
6007                         break;
6008                 }
6009         case SCTP_BINDX_REM_ADDR:
6010                 {
6011                         struct sockaddr *sa;
6012                         struct thread *td;
6013
6014                         td = (struct thread *)p;
6015
6016                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
6017 #ifdef INET
6018                         if (sa->sa_family == AF_INET) {
6019                                 if (optsize < sizeof(struct sockaddr_in)) {
6020                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6021                                         error = EINVAL;
6022                                         break;
6023                                 }
6024                                 if (td != NULL &&
6025                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6026                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6027                                         break;
6028                                 }
6029                         } else
6030 #endif
6031 #ifdef INET6
6032                         if (sa->sa_family == AF_INET6) {
6033                                 if (optsize < sizeof(struct sockaddr_in6)) {
6034                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6035                                         error = EINVAL;
6036                                         break;
6037                                 }
6038                                 if (td != NULL &&
6039                                     (error = prison_local_ip6(td->td_ucred,
6040                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6041                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6042                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6043                                         break;
6044                                 }
6045                         } else
6046 #endif
6047                         {
6048                                 error = EAFNOSUPPORT;
6049                                 break;
6050                         }
6051                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6052                         break;
6053                 }
6054         case SCTP_EVENT:
6055                 {
6056                         struct sctp_event *event;
6057                         uint32_t event_type;
6058
6059                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6060                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6061                         switch (event->se_type) {
6062                         case SCTP_ASSOC_CHANGE:
6063                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6064                                 break;
6065                         case SCTP_PEER_ADDR_CHANGE:
6066                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6067                                 break;
6068                         case SCTP_REMOTE_ERROR:
6069                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6070                                 break;
6071                         case SCTP_SEND_FAILED:
6072                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6073                                 break;
6074                         case SCTP_SHUTDOWN_EVENT:
6075                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6076                                 break;
6077                         case SCTP_ADAPTATION_INDICATION:
6078                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6079                                 break;
6080                         case SCTP_PARTIAL_DELIVERY_EVENT:
6081                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6082                                 break;
6083                         case SCTP_AUTHENTICATION_EVENT:
6084                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6085                                 break;
6086                         case SCTP_STREAM_RESET_EVENT:
6087                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6088                                 break;
6089                         case SCTP_SENDER_DRY_EVENT:
6090                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6091                                 break;
6092                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6093                                 event_type = 0;
6094                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6095                                 error = ENOTSUP;
6096                                 break;
6097                         case SCTP_ASSOC_RESET_EVENT:
6098                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6099                                 break;
6100                         case SCTP_STREAM_CHANGE_EVENT:
6101                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6102                                 break;
6103                         case SCTP_SEND_FAILED_EVENT:
6104                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6105                                 break;
6106                         default:
6107                                 event_type = 0;
6108                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6109                                 error = EINVAL;
6110                                 break;
6111                         }
6112                         if (event_type > 0) {
6113                                 if (stcb) {
6114                                         if (event->se_on) {
6115                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6116                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6117                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6118                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6119                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6120                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6121                                                         }
6122                                                 }
6123                                         } else {
6124                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6125                                         }
6126                                         SCTP_TCB_UNLOCK(stcb);
6127                                 } else {
6128                                         /*
6129                                          * We don't want to send up a storm
6130                                          * of events, so return an error for
6131                                          * sender dry events
6132                                          */
6133                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6134                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6135                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6136                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6137                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6138                                                 error = ENOTSUP;
6139                                                 break;
6140                                         }
6141                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6142                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6143                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6144                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6145                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6146                                                 SCTP_INP_WLOCK(inp);
6147                                                 if (event->se_on) {
6148                                                         sctp_feature_on(inp, event_type);
6149                                                 } else {
6150                                                         sctp_feature_off(inp, event_type);
6151                                                 }
6152                                                 SCTP_INP_WUNLOCK(inp);
6153                                         }
6154                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6155                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6156                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6157                                                 SCTP_INP_RLOCK(inp);
6158                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6159                                                         SCTP_TCB_LOCK(stcb);
6160                                                         if (event->se_on) {
6161                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6162                                                         } else {
6163                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6164                                                         }
6165                                                         SCTP_TCB_UNLOCK(stcb);
6166                                                 }
6167                                                 SCTP_INP_RUNLOCK(inp);
6168                                         }
6169                                 }
6170                         } else {
6171                                 if (stcb) {
6172                                         SCTP_TCB_UNLOCK(stcb);
6173                                 }
6174                         }
6175                         break;
6176                 }
6177         case SCTP_RECVRCVINFO:
6178                 {
6179                         int *onoff;
6180
6181                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6182                         SCTP_INP_WLOCK(inp);
6183                         if (*onoff != 0) {
6184                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6185                         } else {
6186                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6187                         }
6188                         SCTP_INP_WUNLOCK(inp);
6189                         break;
6190                 }
6191         case SCTP_RECVNXTINFO:
6192                 {
6193                         int *onoff;
6194
6195                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6196                         SCTP_INP_WLOCK(inp);
6197                         if (*onoff != 0) {
6198                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6199                         } else {
6200                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6201                         }
6202                         SCTP_INP_WUNLOCK(inp);
6203                         break;
6204                 }
6205         case SCTP_DEFAULT_SNDINFO:
6206                 {
6207                         struct sctp_sndinfo *info;
6208                         uint16_t policy;
6209
6210                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6211                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6212
6213                         if (stcb) {
6214                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6215                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6216                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6217                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6218                                         stcb->asoc.def_send.sinfo_flags |= policy;
6219                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6220                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6221                                 } else {
6222                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6223                                         error = EINVAL;
6224                                 }
6225                                 SCTP_TCB_UNLOCK(stcb);
6226                         } else {
6227                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6228                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6229                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6230                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6231                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6232                                         SCTP_INP_WLOCK(inp);
6233                                         inp->def_send.sinfo_stream = info->snd_sid;
6234                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6235                                         inp->def_send.sinfo_flags = info->snd_flags;
6236                                         inp->def_send.sinfo_flags |= policy;
6237                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6238                                         inp->def_send.sinfo_context = info->snd_context;
6239                                         SCTP_INP_WUNLOCK(inp);
6240                                 }
6241                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6242                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6243                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6244                                         SCTP_INP_RLOCK(inp);
6245                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6246                                                 SCTP_TCB_LOCK(stcb);
6247                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6248                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6249                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6250                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6251                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6252                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6253                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6254                                                 }
6255                                                 SCTP_TCB_UNLOCK(stcb);
6256                                         }
6257                                         SCTP_INP_RUNLOCK(inp);
6258                                 }
6259                         }
6260                         break;
6261                 }
6262         case SCTP_DEFAULT_PRINFO:
6263                 {
6264                         struct sctp_default_prinfo *info;
6265
6266                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6267                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6268
6269                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6270                                 if (stcb) {
6271                                         SCTP_TCB_UNLOCK(stcb);
6272                                 }
6273                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6274                                 error = EINVAL;
6275                                 break;
6276                         }
6277                         if (stcb) {
6278                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6279                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6280                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6281                                 SCTP_TCB_UNLOCK(stcb);
6282                         } else {
6283                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6284                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6285                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6286                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6287                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6288                                         SCTP_INP_WLOCK(inp);
6289                                         inp->def_send.sinfo_flags &= 0xfff0;
6290                                         inp->def_send.sinfo_flags |= info->pr_policy;
6291                                         inp->def_send.sinfo_timetolive = info->pr_value;
6292                                         SCTP_INP_WUNLOCK(inp);
6293                                 }
6294                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6295                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6296                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6297                                         SCTP_INP_RLOCK(inp);
6298                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6299                                                 SCTP_TCB_LOCK(stcb);
6300                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6301                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6302                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6303                                                 SCTP_TCB_UNLOCK(stcb);
6304                                         }
6305                                         SCTP_INP_RUNLOCK(inp);
6306                                 }
6307                         }
6308                         break;
6309                 }
6310         case SCTP_PEER_ADDR_THLDS:
6311                 /* Applies to the specific association */
6312                 {
6313                         struct sctp_paddrthlds *thlds;
6314                         struct sctp_nets *net;
6315                         struct sockaddr *addr;
6316 #if defined(INET) && defined(INET6)
6317                         struct sockaddr_in sin_store;
6318 #endif
6319
6320                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6321                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6322
6323 #if defined(INET) && defined(INET6)
6324                         if (thlds->spt_address.ss_family == AF_INET6) {
6325                                 struct sockaddr_in6 *sin6;
6326
6327                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6328                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6329                                         in6_sin6_2_sin(&sin_store, sin6);
6330                                         addr = (struct sockaddr *)&sin_store;
6331                                 } else {
6332                                         addr = (struct sockaddr *)&thlds->spt_address;
6333                                 }
6334                         } else {
6335                                 addr = (struct sockaddr *)&thlds->spt_address;
6336                         }
6337 #else
6338                         addr = (struct sockaddr *)&thlds->spt_address;
6339 #endif
6340                         if (stcb != NULL) {
6341                                 net = sctp_findnet(stcb, addr);
6342                         } else {
6343                                 /*
6344                                  * We increment here since
6345                                  * sctp_findassociation_ep_addr() wil do a
6346                                  * decrement if it finds the stcb as long as
6347                                  * the locked tcb (last argument) is NOT a
6348                                  * TCB.. aka NULL.
6349                                  */
6350                                 net = NULL;
6351                                 SCTP_INP_INCR_REF(inp);
6352                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6353                                     &net, NULL, NULL);
6354                                 if (stcb == NULL) {
6355                                         SCTP_INP_DECR_REF(inp);
6356                                 }
6357                         }
6358                         if ((stcb != NULL) && (net == NULL)) {
6359 #ifdef INET
6360                                 if (addr->sa_family == AF_INET) {
6361                                         struct sockaddr_in *sin;
6362
6363                                         sin = (struct sockaddr_in *)addr;
6364                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6365                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6366                                                 SCTP_TCB_UNLOCK(stcb);
6367                                                 error = EINVAL;
6368                                                 break;
6369                                         }
6370                                 } else
6371 #endif
6372 #ifdef INET6
6373                                 if (addr->sa_family == AF_INET6) {
6374                                         struct sockaddr_in6 *sin6;
6375
6376                                         sin6 = (struct sockaddr_in6 *)addr;
6377                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6378                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6379                                                 SCTP_TCB_UNLOCK(stcb);
6380                                                 error = EINVAL;
6381                                                 break;
6382                                         }
6383                                 } else
6384 #endif
6385                                 {
6386                                         error = EAFNOSUPPORT;
6387                                         SCTP_TCB_UNLOCK(stcb);
6388                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6389                                         break;
6390                                 }
6391                         }
6392                         if (thlds->spt_pathcpthld != 0xffff) {
6393                                 if (stcb != NULL) {
6394                                         SCTP_TCB_UNLOCK(stcb);
6395                                 }
6396                                 error = EINVAL;
6397                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6398                                 break;
6399                         }
6400                         if (stcb != NULL) {
6401                                 if (net != NULL) {
6402                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6403                                         net->pf_threshold = thlds->spt_pathpfthld;
6404                                         if (net->dest_state & SCTP_ADDR_PF) {
6405                                                 if ((net->error_count > net->failure_threshold) ||
6406                                                     (net->error_count <= net->pf_threshold)) {
6407                                                         net->dest_state &= ~SCTP_ADDR_PF;
6408                                                 }
6409                                         } else {
6410                                                 if ((net->error_count > net->pf_threshold) &&
6411                                                     (net->error_count <= net->failure_threshold)) {
6412                                                         net->dest_state |= SCTP_ADDR_PF;
6413                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6414                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6415                                                             stcb->sctp_ep, stcb, net,
6416                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6417                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6418                                                 }
6419                                         }
6420                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6421                                                 if (net->error_count > net->failure_threshold) {
6422                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6423                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6424                                                 }
6425                                         } else {
6426                                                 if (net->error_count <= net->failure_threshold) {
6427                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6428                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6429                                                 }
6430                                         }
6431                                 } else {
6432                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6433                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6434                                                 net->pf_threshold = thlds->spt_pathpfthld;
6435                                                 if (net->dest_state & SCTP_ADDR_PF) {
6436                                                         if ((net->error_count > net->failure_threshold) ||
6437                                                             (net->error_count <= net->pf_threshold)) {
6438                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6439                                                         }
6440                                                 } else {
6441                                                         if ((net->error_count > net->pf_threshold) &&
6442                                                             (net->error_count <= net->failure_threshold)) {
6443                                                                 net->dest_state |= SCTP_ADDR_PF;
6444                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6445                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6446                                                                     stcb->sctp_ep, stcb, net,
6447                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6448                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6449                                                         }
6450                                                 }
6451                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6452                                                         if (net->error_count > net->failure_threshold) {
6453                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6454                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6455                                                         }
6456                                                 } else {
6457                                                         if (net->error_count <= net->failure_threshold) {
6458                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6459                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6460                                                         }
6461                                                 }
6462                                         }
6463                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6464                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6465                                 }
6466                                 SCTP_TCB_UNLOCK(stcb);
6467                         } else {
6468                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6469                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6470                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6471                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6472                                         SCTP_INP_WLOCK(inp);
6473                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6474                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6475                                         SCTP_INP_WUNLOCK(inp);
6476                                 } else {
6477                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6478                                         error = EINVAL;
6479                                 }
6480                         }
6481                         break;
6482                 }
6483         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6484                 {
6485                         struct sctp_udpencaps *encaps;
6486                         struct sctp_nets *net;
6487                         struct sockaddr *addr;
6488 #if defined(INET) && defined(INET6)
6489                         struct sockaddr_in sin_store;
6490 #endif
6491
6492                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6493                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6494
6495 #if defined(INET) && defined(INET6)
6496                         if (encaps->sue_address.ss_family == AF_INET6) {
6497                                 struct sockaddr_in6 *sin6;
6498
6499                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6500                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6501                                         in6_sin6_2_sin(&sin_store, sin6);
6502                                         addr = (struct sockaddr *)&sin_store;
6503                                 } else {
6504                                         addr = (struct sockaddr *)&encaps->sue_address;
6505                                 }
6506                         } else {
6507                                 addr = (struct sockaddr *)&encaps->sue_address;
6508                         }
6509 #else
6510                         addr = (struct sockaddr *)&encaps->sue_address;
6511 #endif
6512                         if (stcb != NULL) {
6513                                 net = sctp_findnet(stcb, addr);
6514                         } else {
6515                                 /*
6516                                  * We increment here since
6517                                  * sctp_findassociation_ep_addr() wil do a
6518                                  * decrement if it finds the stcb as long as
6519                                  * the locked tcb (last argument) is NOT a
6520                                  * TCB.. aka NULL.
6521                                  */
6522                                 net = NULL;
6523                                 SCTP_INP_INCR_REF(inp);
6524                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6525                                 if (stcb == NULL) {
6526                                         SCTP_INP_DECR_REF(inp);
6527                                 }
6528                         }
6529                         if ((stcb != NULL) && (net == NULL)) {
6530 #ifdef INET
6531                                 if (addr->sa_family == AF_INET) {
6532                                         struct sockaddr_in *sin;
6533
6534                                         sin = (struct sockaddr_in *)addr;
6535                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6536                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6537                                                 SCTP_TCB_UNLOCK(stcb);
6538                                                 error = EINVAL;
6539                                                 break;
6540                                         }
6541                                 } else
6542 #endif
6543 #ifdef INET6
6544                                 if (addr->sa_family == AF_INET6) {
6545                                         struct sockaddr_in6 *sin6;
6546
6547                                         sin6 = (struct sockaddr_in6 *)addr;
6548                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6549                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6550                                                 SCTP_TCB_UNLOCK(stcb);
6551                                                 error = EINVAL;
6552                                                 break;
6553                                         }
6554                                 } else
6555 #endif
6556                                 {
6557                                         error = EAFNOSUPPORT;
6558                                         SCTP_TCB_UNLOCK(stcb);
6559                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6560                                         break;
6561                                 }
6562                         }
6563
6564                         if (stcb != NULL) {
6565                                 if (net != NULL) {
6566                                         net->port = encaps->sue_port;
6567                                 } else {
6568                                         stcb->asoc.port = encaps->sue_port;
6569                                 }
6570                                 SCTP_TCB_UNLOCK(stcb);
6571                         } else {
6572                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6573                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6574                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6575                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6576                                         SCTP_INP_WLOCK(inp);
6577                                         inp->sctp_ep.port = encaps->sue_port;
6578                                         SCTP_INP_WUNLOCK(inp);
6579                                 } else {
6580                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6581                                         error = EINVAL;
6582                                 }
6583                         }
6584                         break;
6585                 }
6586         case SCTP_ECN_SUPPORTED:
6587                 {
6588                         struct sctp_assoc_value *av;
6589
6590                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6591                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6592
6593                         if (stcb) {
6594                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6595                                 error = EINVAL;
6596                                 SCTP_TCB_UNLOCK(stcb);
6597                         } else {
6598                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6599                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6600                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6601                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6602                                         SCTP_INP_WLOCK(inp);
6603                                         if (av->assoc_value == 0) {
6604                                                 inp->ecn_supported = 0;
6605                                         } else {
6606                                                 inp->ecn_supported = 1;
6607                                         }
6608                                         SCTP_INP_WUNLOCK(inp);
6609                                 } else {
6610                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6611                                         error = EINVAL;
6612                                 }
6613                         }
6614                         break;
6615                 }
6616         case SCTP_PR_SUPPORTED:
6617                 {
6618                         struct sctp_assoc_value *av;
6619
6620                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6621                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6622
6623                         if (stcb) {
6624                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6625                                 error = EINVAL;
6626                                 SCTP_TCB_UNLOCK(stcb);
6627                         } else {
6628                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6629                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6630                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6631                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6632                                         SCTP_INP_WLOCK(inp);
6633                                         if (av->assoc_value == 0) {
6634                                                 inp->prsctp_supported = 0;
6635                                         } else {
6636                                                 inp->prsctp_supported = 1;
6637                                         }
6638                                         SCTP_INP_WUNLOCK(inp);
6639                                 } else {
6640                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6641                                         error = EINVAL;
6642                                 }
6643                         }
6644                         break;
6645                 }
6646         case SCTP_AUTH_SUPPORTED:
6647                 {
6648                         struct sctp_assoc_value *av;
6649
6650                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6651                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6652
6653                         if (stcb) {
6654                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6655                                 error = EINVAL;
6656                                 SCTP_TCB_UNLOCK(stcb);
6657                         } else {
6658                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6659                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6660                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6661                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6662                                         if ((av->assoc_value == 0) &&
6663                                             (inp->asconf_supported == 1)) {
6664                                                 /*
6665                                                  * AUTH is required for
6666                                                  * ASCONF
6667                                                  */
6668                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6669                                                 error = EINVAL;
6670                                         } else {
6671                                                 SCTP_INP_WLOCK(inp);
6672                                                 if (av->assoc_value == 0) {
6673                                                         inp->auth_supported = 0;
6674                                                 } else {
6675                                                         inp->auth_supported = 1;
6676                                                 }
6677                                                 SCTP_INP_WUNLOCK(inp);
6678                                         }
6679                                 } else {
6680                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6681                                         error = EINVAL;
6682                                 }
6683                         }
6684                         break;
6685                 }
6686         case SCTP_ASCONF_SUPPORTED:
6687                 {
6688                         struct sctp_assoc_value *av;
6689
6690                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6691                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6692
6693                         if (stcb) {
6694                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6695                                 error = EINVAL;
6696                                 SCTP_TCB_UNLOCK(stcb);
6697                         } else {
6698                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6699                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6700                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6701                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6702                                         if ((av->assoc_value != 0) &&
6703                                             (inp->auth_supported == 0)) {
6704                                                 /*
6705                                                  * AUTH is required for
6706                                                  * ASCONF
6707                                                  */
6708                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6709                                                 error = EINVAL;
6710                                         } else {
6711                                                 SCTP_INP_WLOCK(inp);
6712                                                 if (av->assoc_value == 0) {
6713                                                         inp->asconf_supported = 0;
6714                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6715                                                             inp->sctp_ep.local_auth_chunks);
6716                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6717                                                             inp->sctp_ep.local_auth_chunks);
6718                                                 } else {
6719                                                         inp->asconf_supported = 1;
6720                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6721                                                             inp->sctp_ep.local_auth_chunks);
6722                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6723                                                             inp->sctp_ep.local_auth_chunks);
6724                                                 }
6725                                                 SCTP_INP_WUNLOCK(inp);
6726                                         }
6727                                 } else {
6728                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6729                                         error = EINVAL;
6730                                 }
6731                         }
6732                         break;
6733                 }
6734         case SCTP_RECONFIG_SUPPORTED:
6735                 {
6736                         struct sctp_assoc_value *av;
6737
6738                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6739                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6740
6741                         if (stcb) {
6742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6743                                 error = EINVAL;
6744                                 SCTP_TCB_UNLOCK(stcb);
6745                         } else {
6746                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6747                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6748                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6749                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6750                                         SCTP_INP_WLOCK(inp);
6751                                         if (av->assoc_value == 0) {
6752                                                 inp->reconfig_supported = 0;
6753                                         } else {
6754                                                 inp->reconfig_supported = 1;
6755                                         }
6756                                         SCTP_INP_WUNLOCK(inp);
6757                                 } else {
6758                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6759                                         error = EINVAL;
6760                                 }
6761                         }
6762                         break;
6763                 }
6764         case SCTP_NRSACK_SUPPORTED:
6765                 {
6766                         struct sctp_assoc_value *av;
6767
6768                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6769                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6770
6771                         if (stcb) {
6772                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6773                                 error = EINVAL;
6774                                 SCTP_TCB_UNLOCK(stcb);
6775                         } else {
6776                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6777                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6778                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6779                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6780                                         SCTP_INP_WLOCK(inp);
6781                                         if (av->assoc_value == 0) {
6782                                                 inp->nrsack_supported = 0;
6783                                         } else {
6784                                                 inp->nrsack_supported = 1;
6785                                         }
6786                                         SCTP_INP_WUNLOCK(inp);
6787                                 } else {
6788                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6789                                         error = EINVAL;
6790                                 }
6791                         }
6792                         break;
6793                 }
6794         case SCTP_PKTDROP_SUPPORTED:
6795                 {
6796                         struct sctp_assoc_value *av;
6797
6798                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6799                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6800
6801                         if (stcb) {
6802                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6803                                 error = EINVAL;
6804                                 SCTP_TCB_UNLOCK(stcb);
6805                         } else {
6806                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6807                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6808                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6809                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6810                                         SCTP_INP_WLOCK(inp);
6811                                         if (av->assoc_value == 0) {
6812                                                 inp->pktdrop_supported = 0;
6813                                         } else {
6814                                                 inp->pktdrop_supported = 1;
6815                                         }
6816                                         SCTP_INP_WUNLOCK(inp);
6817                                 } else {
6818                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6819                                         error = EINVAL;
6820                                 }
6821                         }
6822                         break;
6823                 }
6824         case SCTP_MAX_CWND:
6825                 {
6826                         struct sctp_assoc_value *av;
6827                         struct sctp_nets *net;
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                                 stcb->asoc.max_cwnd = av->assoc_value;
6834                                 if (stcb->asoc.max_cwnd > 0) {
6835                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6836                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6837                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6838                                                         net->cwnd = stcb->asoc.max_cwnd;
6839                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6840                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6841                                                         }
6842                                                 }
6843                                         }
6844                                 }
6845                                 SCTP_TCB_UNLOCK(stcb);
6846                         } else {
6847                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6848                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6849                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6850                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6851                                         SCTP_INP_WLOCK(inp);
6852                                         inp->max_cwnd = av->assoc_value;
6853                                         SCTP_INP_WUNLOCK(inp);
6854                                 } else {
6855                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6856                                         error = EINVAL;
6857                                 }
6858                         }
6859                         break;
6860                 }
6861         default:
6862                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6863                 error = ENOPROTOOPT;
6864                 break;
6865         }                       /* end switch (opt) */
6866         return (error);
6867 }
6868
6869 int
6870 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6871 {
6872         struct epoch_tracker et;
6873         struct sctp_inpcb *inp;
6874         void *optval = NULL;
6875         void *p;
6876         size_t optsize = 0;
6877         int error = 0;
6878
6879         if ((sopt->sopt_level == SOL_SOCKET) &&
6880             (sopt->sopt_name == SO_SETFIB)) {
6881                 inp = (struct sctp_inpcb *)so->so_pcb;
6882                 if (inp == NULL) {
6883                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6884                         return (EINVAL);
6885                 }
6886                 SCTP_INP_WLOCK(inp);
6887                 inp->fibnum = so->so_fibnum;
6888                 SCTP_INP_WUNLOCK(inp);
6889                 return (0);
6890         }
6891         if (sopt->sopt_level != IPPROTO_SCTP) {
6892                 /* wrong proto level... send back up to IP */
6893 #ifdef INET6
6894                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6895                         error = ip6_ctloutput(so, sopt);
6896 #endif                          /* INET6 */
6897 #if defined(INET) && defined(INET6)
6898                 else
6899 #endif
6900 #ifdef INET
6901                         error = ip_ctloutput(so, sopt);
6902 #endif
6903                 return (error);
6904         }
6905         optsize = sopt->sopt_valsize;
6906         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6907                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6908                 return (ENOBUFS);
6909         }
6910         if (optsize) {
6911                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6912                 if (optval == NULL) {
6913                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6914                         return (ENOBUFS);
6915                 }
6916                 error = sooptcopyin(sopt, optval, optsize, optsize);
6917                 if (error) {
6918                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6919                         goto out;
6920                 }
6921         }
6922         p = (void *)sopt->sopt_td;
6923         if (sopt->sopt_dir == SOPT_SET) {
6924                 NET_EPOCH_ENTER(et);
6925                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6926                 NET_EPOCH_EXIT(et);
6927         } else if (sopt->sopt_dir == SOPT_GET) {
6928                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6929         } else {
6930                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6931                 error = EINVAL;
6932         }
6933         if ((error == 0) && (optval != NULL)) {
6934                 error = sooptcopyout(sopt, optval, optsize);
6935                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6936         } else if (optval != NULL) {
6937                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6938         }
6939 out:
6940         return (error);
6941 }
6942
6943 #ifdef INET
6944 static int
6945 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6946 {
6947         struct epoch_tracker et;
6948         int error = 0;
6949         int create_lock_on = 0;
6950         uint32_t vrf_id;
6951         struct sctp_inpcb *inp;
6952         struct sctp_tcb *stcb = NULL;
6953
6954         inp = (struct sctp_inpcb *)so->so_pcb;
6955         if (inp == NULL) {
6956                 /* I made the same as TCP since we are not setup? */
6957                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6958                 return (ECONNRESET);
6959         }
6960         if (addr == NULL) {
6961                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6962                 return EINVAL;
6963         }
6964
6965         switch (addr->sa_family) {
6966 #ifdef INET6
6967         case AF_INET6:
6968                 {
6969                         struct sockaddr_in6 *sin6;
6970
6971                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6972                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6973                                 return (EINVAL);
6974                         }
6975                         sin6 = (struct sockaddr_in6 *)addr;
6976                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
6977                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6978                                 return (error);
6979                         }
6980                         break;
6981                 }
6982 #endif
6983 #ifdef INET
6984         case AF_INET:
6985                 {
6986                         struct sockaddr_in *sin;
6987
6988                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6989                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6990                                 return (EINVAL);
6991                         }
6992                         sin = (struct sockaddr_in *)addr;
6993                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
6994                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6995                                 return (error);
6996                         }
6997                         break;
6998                 }
6999 #endif
7000         default:
7001                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
7002                 return (EAFNOSUPPORT);
7003         }
7004         SCTP_INP_INCR_REF(inp);
7005         SCTP_ASOC_CREATE_LOCK(inp);
7006         create_lock_on = 1;
7007         NET_EPOCH_ENTER(et);
7008
7009         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7010             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7011                 /* Should I really unlock ? */
7012                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7013                 error = EFAULT;
7014                 goto out_now;
7015         }
7016 #ifdef INET6
7017         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7018             (addr->sa_family == AF_INET6)) {
7019                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7020                 error = EINVAL;
7021                 goto out_now;
7022         }
7023 #endif
7024         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
7025             SCTP_PCB_FLAGS_UNBOUND) {
7026                 /* Bind a ephemeral port */
7027                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7028                 if (error) {
7029                         goto out_now;
7030                 }
7031         }
7032         /* Now do we connect? */
7033         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7034             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7035                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7036                 error = EINVAL;
7037                 goto out_now;
7038         }
7039         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7040             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7041                 /* We are already connected AND the TCP model */
7042                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7043                 error = EADDRINUSE;
7044                 goto out_now;
7045         }
7046         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7047                 SCTP_INP_RLOCK(inp);
7048                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7049                 SCTP_INP_RUNLOCK(inp);
7050         } else {
7051                 /*
7052                  * We increment here since sctp_findassociation_ep_addr()
7053                  * will do a decrement if it finds the stcb as long as the
7054                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7055                  */
7056                 SCTP_INP_INCR_REF(inp);
7057                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7058                 if (stcb == NULL) {
7059                         SCTP_INP_DECR_REF(inp);
7060                 } else {
7061                         SCTP_TCB_UNLOCK(stcb);
7062                 }
7063         }
7064         if (stcb != NULL) {
7065                 /* Already have or am bring up an association */
7066                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7067                 error = EALREADY;
7068                 goto out_now;
7069         }
7070
7071         vrf_id = inp->def_vrf_id;
7072         /* We are GOOD to go */
7073         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7074             inp->sctp_ep.pre_open_stream_count,
7075             inp->sctp_ep.port, p,
7076             SCTP_INITIALIZE_AUTH_PARAMS);
7077         if (stcb == NULL) {
7078                 /* Gak! no memory */
7079                 goto out_now;
7080         }
7081         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7082                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7083                 /* Set the connected flag so we can queue data */
7084                 soisconnecting(so);
7085         }
7086         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7087         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7088
7089         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7090         SCTP_TCB_UNLOCK(stcb);
7091 out_now:
7092         NET_EPOCH_EXIT(et);
7093         if (create_lock_on) {
7094                 SCTP_ASOC_CREATE_UNLOCK(inp);
7095         }
7096         SCTP_INP_DECR_REF(inp);
7097         return (error);
7098 }
7099 #endif
7100
7101 int
7102 sctp_listen(struct socket *so, int backlog, struct thread *p)
7103 {
7104         /*
7105          * Note this module depends on the protocol processing being called
7106          * AFTER any socket level flags and backlog are applied to the
7107          * socket. The traditional way that the socket flags are applied is
7108          * AFTER protocol processing. We have made a change to the
7109          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7110          * place if the socket API for SCTP is to work properly.
7111          */
7112
7113         int error = 0;
7114         struct sctp_inpcb *inp;
7115
7116         inp = (struct sctp_inpcb *)so->so_pcb;
7117         if (inp == NULL) {
7118                 /* I made the same as TCP since we are not setup? */
7119                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7120                 return (ECONNRESET);
7121         }
7122         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7123                 /* See if we have a listener */
7124                 struct sctp_inpcb *tinp;
7125                 union sctp_sockstore store;
7126
7127                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7128                         /* not bound all */
7129                         struct sctp_laddr *laddr;
7130
7131                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7132                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7133                                 switch (store.sa.sa_family) {
7134 #ifdef INET
7135                                 case AF_INET:
7136                                         store.sin.sin_port = inp->sctp_lport;
7137                                         break;
7138 #endif
7139 #ifdef INET6
7140                                 case AF_INET6:
7141                                         store.sin6.sin6_port = inp->sctp_lport;
7142                                         break;
7143 #endif
7144                                 default:
7145                                         break;
7146                                 }
7147                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7148                                 if (tinp && (tinp != inp) &&
7149                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7150                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7151                                     (SCTP_IS_LISTENING(tinp))) {
7152                                         /*
7153                                          * we have a listener already and
7154                                          * its not this inp.
7155                                          */
7156                                         SCTP_INP_DECR_REF(tinp);
7157                                         return (EADDRINUSE);
7158                                 } else if (tinp) {
7159                                         SCTP_INP_DECR_REF(tinp);
7160                                 }
7161                         }
7162                 } else {
7163                         /* Setup a local addr bound all */
7164                         memset(&store, 0, sizeof(store));
7165 #ifdef INET6
7166                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7167                                 store.sa.sa_family = AF_INET6;
7168                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7169                         }
7170 #endif
7171 #ifdef INET
7172                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7173                                 store.sa.sa_family = AF_INET;
7174                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7175                         }
7176 #endif
7177                         switch (store.sa.sa_family) {
7178 #ifdef INET
7179                         case AF_INET:
7180                                 store.sin.sin_port = inp->sctp_lport;
7181                                 break;
7182 #endif
7183 #ifdef INET6
7184                         case AF_INET6:
7185                                 store.sin6.sin6_port = inp->sctp_lport;
7186                                 break;
7187 #endif
7188                         default:
7189                                 break;
7190                         }
7191                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7192                         if (tinp && (tinp != inp) &&
7193                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7194                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7195                             (SCTP_IS_LISTENING(tinp))) {
7196                                 /*
7197                                  * we have a listener already and its not
7198                                  * this inp.
7199                                  */
7200                                 SCTP_INP_DECR_REF(tinp);
7201                                 return (EADDRINUSE);
7202                         } else if (tinp) {
7203                                 SCTP_INP_DECR_REF(tinp);
7204                         }
7205                 }
7206         }
7207         SCTP_INP_RLOCK(inp);
7208 #ifdef SCTP_LOCK_LOGGING
7209         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7210                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7211         }
7212 #endif
7213         SOCK_LOCK(so);
7214         error = solisten_proto_check(so);
7215         SOCK_UNLOCK(so);
7216         if (error) {
7217                 SCTP_INP_RUNLOCK(inp);
7218                 return (error);
7219         }
7220         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7221             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7222                 /*
7223                  * The unlucky case - We are in the tcp pool with this guy.
7224                  * - Someone else is in the main inp slot. - We must move
7225                  * this guy (the listener) to the main slot - We must then
7226                  * move the guy that was listener to the TCP Pool.
7227                  */
7228                 if (sctp_swap_inpcb_for_listen(inp)) {
7229                         SCTP_INP_RUNLOCK(inp);
7230                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7231                         return (EADDRINUSE);
7232                 }
7233         }
7234
7235         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7236             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7237                 /* We are already connected AND the TCP model */
7238                 SCTP_INP_RUNLOCK(inp);
7239                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7240                 return (EADDRINUSE);
7241         }
7242         SCTP_INP_RUNLOCK(inp);
7243         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7244                 /* We must do a bind. */
7245                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7246                         /* bind error, probably perm */
7247                         return (error);
7248                 }
7249         }
7250         SCTP_INP_WLOCK(inp);
7251         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7252                 SOCK_LOCK(so);
7253                 solisten_proto(so, backlog);
7254                 SOCK_UNLOCK(so);
7255         }
7256         if (backlog > 0) {
7257                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7258         } else {
7259                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7260         }
7261         SCTP_INP_WUNLOCK(inp);
7262         return (error);
7263 }
7264
7265 static int sctp_defered_wakeup_cnt = 0;
7266
7267 int
7268 sctp_accept(struct socket *so, struct sockaddr **addr)
7269 {
7270         struct sctp_tcb *stcb;
7271         struct sctp_inpcb *inp;
7272         union sctp_sockstore store;
7273 #ifdef INET6
7274         int error;
7275 #endif
7276         inp = (struct sctp_inpcb *)so->so_pcb;
7277
7278         if (inp == NULL) {
7279                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7280                 return (ECONNRESET);
7281         }
7282         SCTP_INP_WLOCK(inp);
7283         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7284                 SCTP_INP_WUNLOCK(inp);
7285                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7286                 return (EOPNOTSUPP);
7287         }
7288         if (so->so_state & SS_ISDISCONNECTED) {
7289                 SCTP_INP_WUNLOCK(inp);
7290                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7291                 return (ECONNABORTED);
7292         }
7293         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7294         if (stcb == NULL) {
7295                 SCTP_INP_WUNLOCK(inp);
7296                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7297                 return (ECONNRESET);
7298         }
7299         SCTP_TCB_LOCK(stcb);
7300         store = stcb->asoc.primary_destination->ro._l_addr;
7301         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7302         /* Wake any delayed sleep action */
7303         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7304                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7305                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7306                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7307                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7308                         if (sowriteable(inp->sctp_socket)) {
7309                                 sowwakeup_locked(inp->sctp_socket);
7310                         } else {
7311                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7312                         }
7313                 }
7314                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7315                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7316                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7317                         if (soreadable(inp->sctp_socket)) {
7318                                 sctp_defered_wakeup_cnt++;
7319                                 sorwakeup_locked(inp->sctp_socket);
7320                         } else {
7321                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7322                         }
7323                 }
7324         }
7325         SCTP_INP_WUNLOCK(inp);
7326         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7327                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7328                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7329         } else {
7330                 SCTP_TCB_UNLOCK(stcb);
7331         }
7332         switch (store.sa.sa_family) {
7333 #ifdef INET
7334         case AF_INET:
7335                 {
7336                         struct sockaddr_in *sin;
7337
7338                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7339                         if (sin == NULL)
7340                                 return (ENOMEM);
7341                         sin->sin_family = AF_INET;
7342                         sin->sin_len = sizeof(*sin);
7343                         sin->sin_port = store.sin.sin_port;
7344                         sin->sin_addr = store.sin.sin_addr;
7345                         *addr = (struct sockaddr *)sin;
7346                         break;
7347                 }
7348 #endif
7349 #ifdef INET6
7350         case AF_INET6:
7351                 {
7352                         struct sockaddr_in6 *sin6;
7353
7354                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7355                         if (sin6 == NULL)
7356                                 return (ENOMEM);
7357                         sin6->sin6_family = AF_INET6;
7358                         sin6->sin6_len = sizeof(*sin6);
7359                         sin6->sin6_port = store.sin6.sin6_port;
7360                         sin6->sin6_addr = store.sin6.sin6_addr;
7361                         if ((error = sa6_recoverscope(sin6)) != 0) {
7362                                 SCTP_FREE_SONAME(sin6);
7363                                 return (error);
7364                         }
7365                         *addr = (struct sockaddr *)sin6;
7366                         break;
7367                 }
7368 #endif
7369         default:
7370                 /* TSNH */
7371                 break;
7372         }
7373         return (0);
7374 }
7375
7376 #ifdef INET
7377 int
7378 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7379 {
7380         struct sockaddr_in *sin;
7381         uint32_t vrf_id;
7382         struct sctp_inpcb *inp;
7383         struct sctp_ifa *sctp_ifa;
7384
7385         /*
7386          * Do the malloc first in case it blocks.
7387          */
7388         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7389         if (sin == NULL)
7390                 return (ENOMEM);
7391         sin->sin_family = AF_INET;
7392         sin->sin_len = sizeof(*sin);
7393         inp = (struct sctp_inpcb *)so->so_pcb;
7394         if (!inp) {
7395                 SCTP_FREE_SONAME(sin);
7396                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7397                 return (ECONNRESET);
7398         }
7399         SCTP_INP_RLOCK(inp);
7400         sin->sin_port = inp->sctp_lport;
7401         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7402                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7403                         struct sctp_tcb *stcb;
7404                         struct sockaddr_in *sin_a;
7405                         struct sctp_nets *net;
7406                         int fnd;
7407
7408                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7409                         if (stcb == NULL) {
7410                                 goto notConn;
7411                         }
7412                         fnd = 0;
7413                         sin_a = NULL;
7414                         SCTP_TCB_LOCK(stcb);
7415                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7416                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7417                                 if (sin_a == NULL)
7418                                         /* this will make coverity happy */
7419                                         continue;
7420
7421                                 if (sin_a->sin_family == AF_INET) {
7422                                         fnd = 1;
7423                                         break;
7424                                 }
7425                         }
7426                         if ((!fnd) || (sin_a == NULL)) {
7427                                 /* punt */
7428                                 SCTP_TCB_UNLOCK(stcb);
7429                                 goto notConn;
7430                         }
7431
7432                         vrf_id = inp->def_vrf_id;
7433                         sctp_ifa = sctp_source_address_selection(inp,
7434                             stcb,
7435                             (sctp_route_t *)&net->ro,
7436                             net, 0, vrf_id);
7437                         if (sctp_ifa) {
7438                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7439                                 sctp_free_ifa(sctp_ifa);
7440                         }
7441                         SCTP_TCB_UNLOCK(stcb);
7442                 } else {
7443                         /* For the bound all case you get back 0 */
7444         notConn:
7445                         sin->sin_addr.s_addr = 0;
7446                 }
7447
7448         } else {
7449                 /* Take the first IPv4 address in the list */
7450                 struct sctp_laddr *laddr;
7451                 int fnd = 0;
7452
7453                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7454                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7455                                 struct sockaddr_in *sin_a;
7456
7457                                 sin_a = &laddr->ifa->address.sin;
7458                                 sin->sin_addr = sin_a->sin_addr;
7459                                 fnd = 1;
7460                                 break;
7461                         }
7462                 }
7463                 if (!fnd) {
7464                         SCTP_FREE_SONAME(sin);
7465                         SCTP_INP_RUNLOCK(inp);
7466                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7467                         return (ENOENT);
7468                 }
7469         }
7470         SCTP_INP_RUNLOCK(inp);
7471         (*addr) = (struct sockaddr *)sin;
7472         return (0);
7473 }
7474
7475 int
7476 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7477 {
7478         struct sockaddr_in *sin;
7479         int fnd;
7480         struct sockaddr_in *sin_a;
7481         struct sctp_inpcb *inp;
7482         struct sctp_tcb *stcb;
7483         struct sctp_nets *net;
7484
7485         /* Do the malloc first in case it blocks. */
7486         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7487         if (sin == NULL)
7488                 return (ENOMEM);
7489         sin->sin_family = AF_INET;
7490         sin->sin_len = sizeof(*sin);
7491
7492         inp = (struct sctp_inpcb *)so->so_pcb;
7493         if ((inp == NULL) ||
7494             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7495                 /* UDP type and listeners will drop out here */
7496                 SCTP_FREE_SONAME(sin);
7497                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7498                 return (ENOTCONN);
7499         }
7500         SCTP_INP_RLOCK(inp);
7501         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7502         if (stcb) {
7503                 SCTP_TCB_LOCK(stcb);
7504         }
7505         SCTP_INP_RUNLOCK(inp);
7506         if (stcb == NULL) {
7507                 SCTP_FREE_SONAME(sin);
7508                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7509                 return (ECONNRESET);
7510         }
7511         fnd = 0;
7512         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7513                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7514                 if (sin_a->sin_family == AF_INET) {
7515                         fnd = 1;
7516                         sin->sin_port = stcb->rport;
7517                         sin->sin_addr = sin_a->sin_addr;
7518                         break;
7519                 }
7520         }
7521         SCTP_TCB_UNLOCK(stcb);
7522         if (!fnd) {
7523                 /* No IPv4 address */
7524                 SCTP_FREE_SONAME(sin);
7525                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7526                 return (ENOENT);
7527         }
7528         (*addr) = (struct sockaddr *)sin;
7529         return (0);
7530 }
7531
7532 struct pr_usrreqs sctp_usrreqs = {
7533         .pru_abort = sctp_abort,
7534         .pru_accept = sctp_accept,
7535         .pru_attach = sctp_attach,
7536         .pru_bind = sctp_bind,
7537         .pru_connect = sctp_connect,
7538         .pru_control = in_control,
7539         .pru_close = sctp_close,
7540         .pru_detach = sctp_close,
7541         .pru_sopoll = sopoll_generic,
7542         .pru_flush = sctp_flush,
7543         .pru_disconnect = sctp_disconnect,
7544         .pru_listen = sctp_listen,
7545         .pru_peeraddr = sctp_peeraddr,
7546         .pru_send = sctp_sendm,
7547         .pru_shutdown = sctp_shutdown,
7548         .pru_sockaddr = sctp_ingetaddr,
7549         .pru_sosend = sctp_sosend,
7550         .pru_soreceive = sctp_soreceive
7551 };
7552 #endif