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                 {
3081                         int onoff;
3082
3083                         if (*optsize < sizeof(int)) {
3084                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3085                                 error = EINVAL;
3086                         } else {
3087                                 SCTP_INP_RLOCK(inp);
3088                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3089                                 SCTP_INP_RUNLOCK(inp);
3090                         }
3091                         if (error == 0) {
3092                                 /* return the option value */
3093                                 *(int *)optval = onoff;
3094                                 *optsize = sizeof(int);
3095                         }
3096                         break;
3097                 }
3098         case SCTP_RECVNXTINFO:
3099                 {
3100                         int onoff;
3101
3102                         if (*optsize < sizeof(int)) {
3103                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3104                                 error = EINVAL;
3105                         } else {
3106                                 SCTP_INP_RLOCK(inp);
3107                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3108                                 SCTP_INP_RUNLOCK(inp);
3109                         }
3110                         if (error == 0) {
3111                                 /* return the option value */
3112                                 *(int *)optval = onoff;
3113                                 *optsize = sizeof(int);
3114                         }
3115                         break;
3116                 }
3117         case SCTP_DEFAULT_SNDINFO:
3118                 {
3119                         struct sctp_sndinfo *info;
3120
3121                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3122                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3123
3124                         if (stcb) {
3125                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3126                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3127                                 info->snd_flags &= 0xfff0;
3128                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3129                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3130                                 SCTP_TCB_UNLOCK(stcb);
3131                         } else {
3132                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3133                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3134                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3135                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3136                                         SCTP_INP_RLOCK(inp);
3137                                         info->snd_sid = inp->def_send.sinfo_stream;
3138                                         info->snd_flags = inp->def_send.sinfo_flags;
3139                                         info->snd_flags &= 0xfff0;
3140                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3141                                         info->snd_context = inp->def_send.sinfo_context;
3142                                         SCTP_INP_RUNLOCK(inp);
3143                                 } else {
3144                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3145                                         error = EINVAL;
3146                                 }
3147                         }
3148                         if (error == 0) {
3149                                 *optsize = sizeof(struct sctp_sndinfo);
3150                         }
3151                         break;
3152                 }
3153         case SCTP_DEFAULT_PRINFO:
3154                 {
3155                         struct sctp_default_prinfo *info;
3156
3157                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3158                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3159
3160                         if (stcb) {
3161                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3162                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3163                                 SCTP_TCB_UNLOCK(stcb);
3164                         } else {
3165                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3166                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3167                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3168                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3169                                         SCTP_INP_RLOCK(inp);
3170                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3171                                         info->pr_value = inp->def_send.sinfo_timetolive;
3172                                         SCTP_INP_RUNLOCK(inp);
3173                                 } else {
3174                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3175                                         error = EINVAL;
3176                                 }
3177                         }
3178                         if (error == 0) {
3179                                 *optsize = sizeof(struct sctp_default_prinfo);
3180                         }
3181                         break;
3182                 }
3183         case SCTP_PEER_ADDR_THLDS:
3184                 {
3185                         struct sctp_paddrthlds *thlds;
3186                         struct sctp_nets *net;
3187                         struct sockaddr *addr;
3188 #if defined(INET) && defined(INET6)
3189                         struct sockaddr_in sin_store;
3190 #endif
3191
3192                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3193                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3194
3195 #if defined(INET) && defined(INET6)
3196                         if (thlds->spt_address.ss_family == AF_INET6) {
3197                                 struct sockaddr_in6 *sin6;
3198
3199                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3200                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3201                                         in6_sin6_2_sin(&sin_store, sin6);
3202                                         addr = (struct sockaddr *)&sin_store;
3203                                 } else {
3204                                         addr = (struct sockaddr *)&thlds->spt_address;
3205                                 }
3206                         } else {
3207                                 addr = (struct sockaddr *)&thlds->spt_address;
3208                         }
3209 #else
3210                         addr = (struct sockaddr *)&thlds->spt_address;
3211 #endif
3212                         if (stcb != NULL) {
3213                                 net = sctp_findnet(stcb, addr);
3214                         } else {
3215                                 /*
3216                                  * We increment here since
3217                                  * sctp_findassociation_ep_addr() wil do a
3218                                  * decrement if it finds the stcb as long as
3219                                  * the locked tcb (last argument) is NOT a
3220                                  * TCB.. aka NULL.
3221                                  */
3222                                 net = NULL;
3223                                 SCTP_INP_INCR_REF(inp);
3224                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3225                                 if (stcb == NULL) {
3226                                         SCTP_INP_DECR_REF(inp);
3227                                 }
3228                         }
3229                         if ((stcb != NULL) && (net == NULL)) {
3230 #ifdef INET
3231                                 if (addr->sa_family == AF_INET) {
3232                                         struct sockaddr_in *sin;
3233
3234                                         sin = (struct sockaddr_in *)addr;
3235                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3236                                                 error = EINVAL;
3237                                                 SCTP_TCB_UNLOCK(stcb);
3238                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3239                                                 break;
3240                                         }
3241                                 } else
3242 #endif
3243 #ifdef INET6
3244                                 if (addr->sa_family == AF_INET6) {
3245                                         struct sockaddr_in6 *sin6;
3246
3247                                         sin6 = (struct sockaddr_in6 *)addr;
3248                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3249                                                 error = EINVAL;
3250                                                 SCTP_TCB_UNLOCK(stcb);
3251                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3252                                                 break;
3253                                         }
3254                                 } else
3255 #endif
3256                                 {
3257                                         error = EAFNOSUPPORT;
3258                                         SCTP_TCB_UNLOCK(stcb);
3259                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3260                                         break;
3261                                 }
3262                         }
3263
3264                         if (stcb != NULL) {
3265                                 if (net != NULL) {
3266                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3267                                         thlds->spt_pathpfthld = net->pf_threshold;
3268                                         thlds->spt_pathcpthld = 0xffff;
3269                                 } else {
3270                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3271                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3272                                         thlds->spt_pathcpthld = 0xffff;
3273                                 }
3274                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3275                                 SCTP_TCB_UNLOCK(stcb);
3276                         } else {
3277                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3278                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3279                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3280                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3281                                         /* Use endpoint defaults */
3282                                         SCTP_INP_RLOCK(inp);
3283                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3284                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3285                                         thlds->spt_pathcpthld = 0xffff;
3286                                         SCTP_INP_RUNLOCK(inp);
3287                                 } else {
3288                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3289                                         error = EINVAL;
3290                                 }
3291                         }
3292                         if (error == 0) {
3293                                 *optsize = sizeof(struct sctp_paddrthlds);
3294                         }
3295                         break;
3296                 }
3297         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3298                 {
3299                         struct sctp_udpencaps *encaps;
3300                         struct sctp_nets *net;
3301                         struct sockaddr *addr;
3302 #if defined(INET) && defined(INET6)
3303                         struct sockaddr_in sin_store;
3304 #endif
3305
3306                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3307                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3308
3309 #if defined(INET) && defined(INET6)
3310                         if (encaps->sue_address.ss_family == AF_INET6) {
3311                                 struct sockaddr_in6 *sin6;
3312
3313                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3314                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3315                                         in6_sin6_2_sin(&sin_store, sin6);
3316                                         addr = (struct sockaddr *)&sin_store;
3317                                 } else {
3318                                         addr = (struct sockaddr *)&encaps->sue_address;
3319                                 }
3320                         } else {
3321                                 addr = (struct sockaddr *)&encaps->sue_address;
3322                         }
3323 #else
3324                         addr = (struct sockaddr *)&encaps->sue_address;
3325 #endif
3326                         if (stcb) {
3327                                 net = sctp_findnet(stcb, addr);
3328                         } else {
3329                                 /*
3330                                  * We increment here since
3331                                  * sctp_findassociation_ep_addr() wil do a
3332                                  * decrement if it finds the stcb as long as
3333                                  * the locked tcb (last argument) is NOT a
3334                                  * TCB.. aka NULL.
3335                                  */
3336                                 net = NULL;
3337                                 SCTP_INP_INCR_REF(inp);
3338                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3339                                 if (stcb == NULL) {
3340                                         SCTP_INP_DECR_REF(inp);
3341                                 }
3342                         }
3343                         if ((stcb != NULL) && (net == NULL)) {
3344 #ifdef INET
3345                                 if (addr->sa_family == AF_INET) {
3346                                         struct sockaddr_in *sin;
3347
3348                                         sin = (struct sockaddr_in *)addr;
3349                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3350                                                 error = EINVAL;
3351                                                 SCTP_TCB_UNLOCK(stcb);
3352                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3353                                                 break;
3354                                         }
3355                                 } else
3356 #endif
3357 #ifdef INET6
3358                                 if (addr->sa_family == AF_INET6) {
3359                                         struct sockaddr_in6 *sin6;
3360
3361                                         sin6 = (struct sockaddr_in6 *)addr;
3362                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3363                                                 error = EINVAL;
3364                                                 SCTP_TCB_UNLOCK(stcb);
3365                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3366                                                 break;
3367                                         }
3368                                 } else
3369 #endif
3370                                 {
3371                                         error = EAFNOSUPPORT;
3372                                         SCTP_TCB_UNLOCK(stcb);
3373                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3374                                         break;
3375                                 }
3376                         }
3377
3378                         if (stcb != NULL) {
3379                                 if (net) {
3380                                         encaps->sue_port = net->port;
3381                                 } else {
3382                                         encaps->sue_port = stcb->asoc.port;
3383                                 }
3384                                 SCTP_TCB_UNLOCK(stcb);
3385                         } else {
3386                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3387                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3388                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3389                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3390                                         SCTP_INP_RLOCK(inp);
3391                                         encaps->sue_port = inp->sctp_ep.port;
3392                                         SCTP_INP_RUNLOCK(inp);
3393                                 } else {
3394                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3395                                         error = EINVAL;
3396                                 }
3397                         }
3398                         if (error == 0) {
3399                                 *optsize = sizeof(struct sctp_udpencaps);
3400                         }
3401                         break;
3402                 }
3403         case SCTP_ECN_SUPPORTED:
3404                 {
3405                         struct sctp_assoc_value *av;
3406
3407                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3408                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3409
3410                         if (stcb) {
3411                                 av->assoc_value = stcb->asoc.ecn_supported;
3412                                 SCTP_TCB_UNLOCK(stcb);
3413                         } else {
3414                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3415                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3416                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3417                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3418                                         SCTP_INP_RLOCK(inp);
3419                                         av->assoc_value = inp->ecn_supported;
3420                                         SCTP_INP_RUNLOCK(inp);
3421                                 } else {
3422                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3423                                         error = EINVAL;
3424                                 }
3425                         }
3426                         if (error == 0) {
3427                                 *optsize = sizeof(struct sctp_assoc_value);
3428                         }
3429                         break;
3430                 }
3431         case SCTP_PR_SUPPORTED:
3432                 {
3433                         struct sctp_assoc_value *av;
3434
3435                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3436                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3437
3438                         if (stcb) {
3439                                 av->assoc_value = stcb->asoc.prsctp_supported;
3440                                 SCTP_TCB_UNLOCK(stcb);
3441                         } else {
3442                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3443                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3444                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3445                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3446                                         SCTP_INP_RLOCK(inp);
3447                                         av->assoc_value = inp->prsctp_supported;
3448                                         SCTP_INP_RUNLOCK(inp);
3449                                 } else {
3450                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3451                                         error = EINVAL;
3452                                 }
3453                         }
3454                         if (error == 0) {
3455                                 *optsize = sizeof(struct sctp_assoc_value);
3456                         }
3457                         break;
3458                 }
3459         case SCTP_AUTH_SUPPORTED:
3460                 {
3461                         struct sctp_assoc_value *av;
3462
3463                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3464                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3465
3466                         if (stcb) {
3467                                 av->assoc_value = stcb->asoc.auth_supported;
3468                                 SCTP_TCB_UNLOCK(stcb);
3469                         } else {
3470                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3471                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3472                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3473                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3474                                         SCTP_INP_RLOCK(inp);
3475                                         av->assoc_value = inp->auth_supported;
3476                                         SCTP_INP_RUNLOCK(inp);
3477                                 } else {
3478                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3479                                         error = EINVAL;
3480                                 }
3481                         }
3482                         if (error == 0) {
3483                                 *optsize = sizeof(struct sctp_assoc_value);
3484                         }
3485                         break;
3486                 }
3487         case SCTP_ASCONF_SUPPORTED:
3488                 {
3489                         struct sctp_assoc_value *av;
3490
3491                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3492                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3493
3494                         if (stcb) {
3495                                 av->assoc_value = stcb->asoc.asconf_supported;
3496                                 SCTP_TCB_UNLOCK(stcb);
3497                         } else {
3498                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3499                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3500                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3501                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3502                                         SCTP_INP_RLOCK(inp);
3503                                         av->assoc_value = inp->asconf_supported;
3504                                         SCTP_INP_RUNLOCK(inp);
3505                                 } else {
3506                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3507                                         error = EINVAL;
3508                                 }
3509                         }
3510                         if (error == 0) {
3511                                 *optsize = sizeof(struct sctp_assoc_value);
3512                         }
3513                         break;
3514                 }
3515         case SCTP_RECONFIG_SUPPORTED:
3516                 {
3517                         struct sctp_assoc_value *av;
3518
3519                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3520                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3521
3522                         if (stcb) {
3523                                 av->assoc_value = stcb->asoc.reconfig_supported;
3524                                 SCTP_TCB_UNLOCK(stcb);
3525                         } else {
3526                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3527                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3528                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3529                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3530                                         SCTP_INP_RLOCK(inp);
3531                                         av->assoc_value = inp->reconfig_supported;
3532                                         SCTP_INP_RUNLOCK(inp);
3533                                 } else {
3534                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3535                                         error = EINVAL;
3536                                 }
3537                         }
3538                         if (error == 0) {
3539                                 *optsize = sizeof(struct sctp_assoc_value);
3540                         }
3541                         break;
3542                 }
3543         case SCTP_NRSACK_SUPPORTED:
3544                 {
3545                         struct sctp_assoc_value *av;
3546
3547                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3548                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3549
3550                         if (stcb) {
3551                                 av->assoc_value = stcb->asoc.nrsack_supported;
3552                                 SCTP_TCB_UNLOCK(stcb);
3553                         } else {
3554                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3555                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3556                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3557                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3558                                         SCTP_INP_RLOCK(inp);
3559                                         av->assoc_value = inp->nrsack_supported;
3560                                         SCTP_INP_RUNLOCK(inp);
3561                                 } else {
3562                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3563                                         error = EINVAL;
3564                                 }
3565                         }
3566                         if (error == 0) {
3567                                 *optsize = sizeof(struct sctp_assoc_value);
3568                         }
3569                         break;
3570                 }
3571         case SCTP_PKTDROP_SUPPORTED:
3572                 {
3573                         struct sctp_assoc_value *av;
3574
3575                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3576                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3577
3578                         if (stcb) {
3579                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3580                                 SCTP_TCB_UNLOCK(stcb);
3581                         } else {
3582                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3583                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3584                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3585                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3586                                         SCTP_INP_RLOCK(inp);
3587                                         av->assoc_value = inp->pktdrop_supported;
3588                                         SCTP_INP_RUNLOCK(inp);
3589                                 } else {
3590                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3591                                         error = EINVAL;
3592                                 }
3593                         }
3594                         if (error == 0) {
3595                                 *optsize = sizeof(struct sctp_assoc_value);
3596                         }
3597                         break;
3598                 }
3599         case SCTP_ENABLE_STREAM_RESET:
3600                 {
3601                         struct sctp_assoc_value *av;
3602
3603                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3604                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3605
3606                         if (stcb) {
3607                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3608                                 SCTP_TCB_UNLOCK(stcb);
3609                         } else {
3610                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3611                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3612                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3613                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3614                                         SCTP_INP_RLOCK(inp);
3615                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3616                                         SCTP_INP_RUNLOCK(inp);
3617                                 } else {
3618                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3619                                         error = EINVAL;
3620                                 }
3621                         }
3622                         if (error == 0) {
3623                                 *optsize = sizeof(struct sctp_assoc_value);
3624                         }
3625                         break;
3626                 }
3627         case SCTP_PR_STREAM_STATUS:
3628                 {
3629                         struct sctp_prstatus *sprstat;
3630                         uint16_t sid;
3631                         uint16_t policy;
3632
3633                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3634                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3635
3636                         sid = sprstat->sprstat_sid;
3637                         policy = sprstat->sprstat_policy;
3638 #if defined(SCTP_DETAILED_STR_STATS)
3639                         if ((stcb != NULL) &&
3640                             (sid < stcb->asoc.streamoutcnt) &&
3641                             (policy != SCTP_PR_SCTP_NONE) &&
3642                             ((policy <= SCTP_PR_SCTP_MAX) ||
3643                             (policy == SCTP_PR_SCTP_ALL))) {
3644                                 if (policy == SCTP_PR_SCTP_ALL) {
3645                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3646                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3647                                 } else {
3648                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3649                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3650                                 }
3651 #else
3652                         if ((stcb != NULL) &&
3653                             (sid < stcb->asoc.streamoutcnt) &&
3654                             (policy == SCTP_PR_SCTP_ALL)) {
3655                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3656                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3657 #endif
3658                         } else {
3659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3660                                 error = EINVAL;
3661                         }
3662                         if (stcb != NULL) {
3663                                 SCTP_TCB_UNLOCK(stcb);
3664                         }
3665                         if (error == 0) {
3666                                 *optsize = sizeof(struct sctp_prstatus);
3667                         }
3668                         break;
3669                 }
3670         case SCTP_PR_ASSOC_STATUS:
3671                 {
3672                         struct sctp_prstatus *sprstat;
3673                         uint16_t policy;
3674
3675                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3676                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3677
3678                         policy = sprstat->sprstat_policy;
3679                         if ((stcb != NULL) &&
3680                             (policy != SCTP_PR_SCTP_NONE) &&
3681                             ((policy <= SCTP_PR_SCTP_MAX) ||
3682                             (policy == SCTP_PR_SCTP_ALL))) {
3683                                 if (policy == SCTP_PR_SCTP_ALL) {
3684                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3685                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3686                                 } else {
3687                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3688                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3689                                 }
3690                         } else {
3691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3692                                 error = EINVAL;
3693                         }
3694                         if (stcb != NULL) {
3695                                 SCTP_TCB_UNLOCK(stcb);
3696                         }
3697                         if (error == 0) {
3698                                 *optsize = sizeof(struct sctp_prstatus);
3699                         }
3700                         break;
3701                 }
3702         case SCTP_MAX_CWND:
3703                 {
3704                         struct sctp_assoc_value *av;
3705
3706                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3707                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3708
3709                         if (stcb) {
3710                                 av->assoc_value = stcb->asoc.max_cwnd;
3711                                 SCTP_TCB_UNLOCK(stcb);
3712                         } else {
3713                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3714                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3715                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3716                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3717                                         SCTP_INP_RLOCK(inp);
3718                                         av->assoc_value = inp->max_cwnd;
3719                                         SCTP_INP_RUNLOCK(inp);
3720                                 } else {
3721                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3722                                         error = EINVAL;
3723                                 }
3724                         }
3725                         if (error == 0) {
3726                                 *optsize = sizeof(struct sctp_assoc_value);
3727                         }
3728                         break;
3729                 }
3730         default:
3731                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3732                 error = ENOPROTOOPT;
3733                 break;
3734         }                       /* end switch (sopt->sopt_name) */
3735         if (error) {
3736                 *optsize = 0;
3737         }
3738         return (error);
3739 }
3740
3741 static int
3742 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3743     void *p)
3744 {
3745         int error, set_opt;
3746         uint32_t *mopt;
3747         struct sctp_tcb *stcb = NULL;
3748         struct sctp_inpcb *inp = NULL;
3749         uint32_t vrf_id;
3750
3751         if (optval == NULL) {
3752                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3753                 return (EINVAL);
3754         }
3755         inp = (struct sctp_inpcb *)so->so_pcb;
3756         if (inp == NULL) {
3757                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3758                 return (EINVAL);
3759         }
3760         vrf_id = inp->def_vrf_id;
3761
3762         error = 0;
3763         switch (optname) {
3764         case SCTP_NODELAY:
3765         case SCTP_AUTOCLOSE:
3766         case SCTP_AUTO_ASCONF:
3767         case SCTP_EXPLICIT_EOR:
3768         case SCTP_DISABLE_FRAGMENTS:
3769         case SCTP_USE_EXT_RCVINFO:
3770         case SCTP_I_WANT_MAPPED_V4_ADDR:
3771                 /* copy in the option value */
3772                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3773                 set_opt = 0;
3774                 if (error)
3775                         break;
3776                 switch (optname) {
3777                 case SCTP_DISABLE_FRAGMENTS:
3778                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3779                         break;
3780                 case SCTP_AUTO_ASCONF:
3781                         /*
3782                          * NOTE: we don't really support this flag
3783                          */
3784                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3785                                 /* only valid for bound all sockets */
3786                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3787                                     (*mopt != 0)) {
3788                                         /* forbidden by admin */
3789                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3790                                         return (EPERM);
3791                                 }
3792                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3793                         } else {
3794                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3795                                 return (EINVAL);
3796                         }
3797                         break;
3798                 case SCTP_EXPLICIT_EOR:
3799                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3800                         break;
3801                 case SCTP_USE_EXT_RCVINFO:
3802                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3803                         break;
3804                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3805                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3806                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3807                         } else {
3808                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3809                                 return (EINVAL);
3810                         }
3811                         break;
3812                 case SCTP_NODELAY:
3813                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3814                         break;
3815                 case SCTP_AUTOCLOSE:
3816                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3817                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3818                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3819                                 return (EINVAL);
3820                         }
3821                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3822                         /*
3823                          * The value is in ticks. Note this does not effect
3824                          * old associations, only new ones.
3825                          */
3826                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3827                         break;
3828                 }
3829                 SCTP_INP_WLOCK(inp);
3830                 if (*mopt != 0) {
3831                         sctp_feature_on(inp, set_opt);
3832                 } else {
3833                         sctp_feature_off(inp, set_opt);
3834                 }
3835                 SCTP_INP_WUNLOCK(inp);
3836                 break;
3837         case SCTP_REUSE_PORT:
3838                 {
3839                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3840                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3841                                 /* Can't set it after we are bound */
3842                                 error = EINVAL;
3843                                 break;
3844                         }
3845                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3846                                 /* Can't do this for a 1-m socket */
3847                                 error = EINVAL;
3848                                 break;
3849                         }
3850                         if (optval)
3851                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3852                         else
3853                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3854                         break;
3855                 }
3856         case SCTP_PARTIAL_DELIVERY_POINT:
3857                 {
3858                         uint32_t *value;
3859
3860                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3861                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3862                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3863                                 error = EINVAL;
3864                                 break;
3865                         }
3866                         inp->partial_delivery_point = *value;
3867                         break;
3868                 }
3869         case SCTP_FRAGMENT_INTERLEAVE:
3870                 /* not yet until we re-write sctp_recvmsg() */
3871                 {
3872                         uint32_t *level;
3873
3874                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3875                         if (*level == SCTP_FRAG_LEVEL_2) {
3876                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3877                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3878                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3879                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3880                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3881                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3882                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3883                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3884
3885                         } else {
3886                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3887                                 error = EINVAL;
3888                         }
3889                         break;
3890                 }
3891         case SCTP_INTERLEAVING_SUPPORTED:
3892                 {
3893                         struct sctp_assoc_value *av;
3894
3895                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3896                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3897
3898                         if (stcb) {
3899                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3900                                 error = EINVAL;
3901                                 SCTP_TCB_UNLOCK(stcb);
3902                         } else {
3903                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3904                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3905                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3906                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3907                                         SCTP_INP_WLOCK(inp);
3908                                         if (av->assoc_value == 0) {
3909                                                 inp->idata_supported = 0;
3910                                         } else {
3911                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3912                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3913                                                         inp->idata_supported = 1;
3914                                                 } else {
3915                                                         /*
3916                                                          * Must have Frag
3917                                                          * interleave and
3918                                                          * stream interleave
3919                                                          * on
3920                                                          */
3921                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3922                                                         error = EINVAL;
3923                                                 }
3924                                         }
3925                                         SCTP_INP_WUNLOCK(inp);
3926                                 } else {
3927                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3928                                         error = EINVAL;
3929                                 }
3930                         }
3931                         break;
3932                 }
3933         case SCTP_CMT_ON_OFF:
3934                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3935                         struct sctp_assoc_value *av;
3936
3937                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3938                         if (av->assoc_value > SCTP_CMT_MAX) {
3939                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3940                                 error = EINVAL;
3941                                 break;
3942                         }
3943                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3944                         if (stcb) {
3945                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3946                                 SCTP_TCB_UNLOCK(stcb);
3947                         } else {
3948                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3949                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3950                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3951                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3952                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3953                                         SCTP_INP_WLOCK(inp);
3954                                         inp->sctp_cmt_on_off = av->assoc_value;
3955                                         SCTP_INP_WUNLOCK(inp);
3956                                 }
3957                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3958                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3959                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3960                                         SCTP_INP_RLOCK(inp);
3961                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3962                                                 SCTP_TCB_LOCK(stcb);
3963                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3964                                                 SCTP_TCB_UNLOCK(stcb);
3965                                         }
3966                                         SCTP_INP_RUNLOCK(inp);
3967                                 }
3968                         }
3969                 } else {
3970                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3971                         error = ENOPROTOOPT;
3972                 }
3973                 break;
3974         case SCTP_PLUGGABLE_CC:
3975                 {
3976                         struct sctp_assoc_value *av;
3977                         struct sctp_nets *net;
3978
3979                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3980                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3981                             (av->assoc_value != SCTP_CC_HSTCP) &&
3982                             (av->assoc_value != SCTP_CC_HTCP) &&
3983                             (av->assoc_value != SCTP_CC_RTCC)) {
3984                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3985                                 error = EINVAL;
3986                                 break;
3987                         }
3988                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3989                         if (stcb) {
3990                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3991                                 stcb->asoc.congestion_control_module = av->assoc_value;
3992                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3993                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3994                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3995                                         }
3996                                 }
3997                                 SCTP_TCB_UNLOCK(stcb);
3998                         } else {
3999                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4000                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4001                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4002                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4003                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4004                                         SCTP_INP_WLOCK(inp);
4005                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
4006                                         SCTP_INP_WUNLOCK(inp);
4007                                 }
4008                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4009                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4010                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4011                                         SCTP_INP_RLOCK(inp);
4012                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4013                                                 SCTP_TCB_LOCK(stcb);
4014                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4015                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4016                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4017                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4018                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4019                                                         }
4020                                                 }
4021                                                 SCTP_TCB_UNLOCK(stcb);
4022                                         }
4023                                         SCTP_INP_RUNLOCK(inp);
4024                                 }
4025                         }
4026                         break;
4027                 }
4028         case SCTP_CC_OPTION:
4029                 {
4030                         struct sctp_cc_option *cc_opt;
4031
4032                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4033                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4034                         if (stcb == NULL) {
4035                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4036                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4037                                         SCTP_INP_RLOCK(inp);
4038                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4039                                                 SCTP_TCB_LOCK(stcb);
4040                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4041                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4042                                                 }
4043                                                 SCTP_TCB_UNLOCK(stcb);
4044                                         }
4045                                         SCTP_INP_RUNLOCK(inp);
4046                                 } else {
4047                                         error = EINVAL;
4048                                 }
4049                         } else {
4050                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4051                                         error = ENOTSUP;
4052                                 } else {
4053                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4054                                             cc_opt);
4055                                 }
4056                                 SCTP_TCB_UNLOCK(stcb);
4057                         }
4058                         break;
4059                 }
4060         case SCTP_PLUGGABLE_SS:
4061                 {
4062                         struct sctp_assoc_value *av;
4063
4064                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4065                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4066                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4067                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4068                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4069                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4070                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4071                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4072                                 error = EINVAL;
4073                                 break;
4074                         }
4075                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4076                         if (stcb) {
4077                                 SCTP_TCB_SEND_LOCK(stcb);
4078                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4079                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4080                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4081                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4082                                 SCTP_TCB_SEND_UNLOCK(stcb);
4083                                 SCTP_TCB_UNLOCK(stcb);
4084                         } else {
4085                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4086                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4087                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4088                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4089                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4090                                         SCTP_INP_WLOCK(inp);
4091                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4092                                         SCTP_INP_WUNLOCK(inp);
4093                                 }
4094                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4095                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4096                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4097                                         SCTP_INP_RLOCK(inp);
4098                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4099                                                 SCTP_TCB_LOCK(stcb);
4100                                                 SCTP_TCB_SEND_LOCK(stcb);
4101                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4102                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4103                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4104                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4105                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4106                                                 SCTP_TCB_UNLOCK(stcb);
4107                                         }
4108                                         SCTP_INP_RUNLOCK(inp);
4109                                 }
4110                         }
4111                         break;
4112                 }
4113         case SCTP_SS_VALUE:
4114                 {
4115                         struct sctp_stream_value *av;
4116
4117                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4118                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4119                         if (stcb) {
4120                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4121                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4122                                     av->stream_value) < 0)) {
4123                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4124                                         error = EINVAL;
4125                                 }
4126                                 SCTP_TCB_UNLOCK(stcb);
4127                         } else {
4128                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4129                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4130                                         SCTP_INP_RLOCK(inp);
4131                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4132                                                 SCTP_TCB_LOCK(stcb);
4133                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4134                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4135                                                             &stcb->asoc,
4136                                                             &stcb->asoc.strmout[av->stream_id],
4137                                                             av->stream_value);
4138                                                 }
4139                                                 SCTP_TCB_UNLOCK(stcb);
4140                                         }
4141                                         SCTP_INP_RUNLOCK(inp);
4142                                 } else {
4143                                         /*
4144                                          * Can't set stream value without
4145                                          * association
4146                                          */
4147                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4148                                         error = EINVAL;
4149                                 }
4150                         }
4151                         break;
4152                 }
4153         case SCTP_CLR_STAT_LOG:
4154                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4155                 error = EOPNOTSUPP;
4156                 break;
4157         case SCTP_CONTEXT:
4158                 {
4159                         struct sctp_assoc_value *av;
4160
4161                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4162                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4163
4164                         if (stcb) {
4165                                 stcb->asoc.context = av->assoc_value;
4166                                 SCTP_TCB_UNLOCK(stcb);
4167                         } else {
4168                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4169                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4170                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4171                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4172                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4173                                         SCTP_INP_WLOCK(inp);
4174                                         inp->sctp_context = av->assoc_value;
4175                                         SCTP_INP_WUNLOCK(inp);
4176                                 }
4177                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4178                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4179                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4180                                         SCTP_INP_RLOCK(inp);
4181                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4182                                                 SCTP_TCB_LOCK(stcb);
4183                                                 stcb->asoc.context = av->assoc_value;
4184                                                 SCTP_TCB_UNLOCK(stcb);
4185                                         }
4186                                         SCTP_INP_RUNLOCK(inp);
4187                                 }
4188                         }
4189                         break;
4190                 }
4191         case SCTP_VRF_ID:
4192                 {
4193                         uint32_t *default_vrfid;
4194
4195                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4196                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4197                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4198                                 error = EINVAL;
4199                                 break;
4200                         }
4201                         inp->def_vrf_id = *default_vrfid;
4202                         break;
4203                 }
4204         case SCTP_DEL_VRF_ID:
4205                 {
4206                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4207                         error = EOPNOTSUPP;
4208                         break;
4209                 }
4210         case SCTP_ADD_VRF_ID:
4211                 {
4212                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4213                         error = EOPNOTSUPP;
4214                         break;
4215                 }
4216         case SCTP_DELAYED_SACK:
4217                 {
4218                         struct sctp_sack_info *sack;
4219
4220                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4221                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4222                         if (sack->sack_delay) {
4223                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4224                                         error = EINVAL;
4225                                         if (stcb != NULL) {
4226                                                 SCTP_TCB_UNLOCK(stcb);
4227                                         }
4228                                         break;
4229                                 }
4230                         }
4231                         if (stcb) {
4232                                 if (sack->sack_delay) {
4233                                         stcb->asoc.delayed_ack = sack->sack_delay;
4234                                 }
4235                                 if (sack->sack_freq) {
4236                                         stcb->asoc.sack_freq = sack->sack_freq;
4237                                 }
4238                                 SCTP_TCB_UNLOCK(stcb);
4239                         } else {
4240                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4241                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4242                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4243                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4244                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4245                                         SCTP_INP_WLOCK(inp);
4246                                         if (sack->sack_delay) {
4247                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4248                                         }
4249                                         if (sack->sack_freq) {
4250                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4251                                         }
4252                                         SCTP_INP_WUNLOCK(inp);
4253                                 }
4254                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4255                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4256                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4257                                         SCTP_INP_RLOCK(inp);
4258                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4259                                                 SCTP_TCB_LOCK(stcb);
4260                                                 if (sack->sack_delay) {
4261                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4262                                                 }
4263                                                 if (sack->sack_freq) {
4264                                                         stcb->asoc.sack_freq = sack->sack_freq;
4265                                                 }
4266                                                 SCTP_TCB_UNLOCK(stcb);
4267                                         }
4268                                         SCTP_INP_RUNLOCK(inp);
4269                                 }
4270                         }
4271                         break;
4272                 }
4273         case SCTP_AUTH_CHUNK:
4274                 {
4275                         struct sctp_authchunk *sauth;
4276
4277                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4278
4279                         SCTP_INP_WLOCK(inp);
4280                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4281                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4282                                 error = EINVAL;
4283                         } else {
4284                                 inp->auth_supported = 1;
4285                         }
4286                         SCTP_INP_WUNLOCK(inp);
4287                         break;
4288                 }
4289         case SCTP_AUTH_KEY:
4290                 {
4291                         struct sctp_authkey *sca;
4292                         struct sctp_keyhead *shared_keys;
4293                         sctp_sharedkey_t *shared_key;
4294                         sctp_key_t *key = NULL;
4295                         size_t size;
4296
4297                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4298                         if (sca->sca_keylength == 0) {
4299                                 size = optsize - sizeof(struct sctp_authkey);
4300                         } else {
4301                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4302                                         size = sca->sca_keylength;
4303                                 } else {
4304                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4305                                         error = EINVAL;
4306                                         break;
4307                                 }
4308                         }
4309                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4310
4311                         if (stcb) {
4312                                 shared_keys = &stcb->asoc.shared_keys;
4313                                 /* clear the cached keys for this key id */
4314                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4315                                 /*
4316                                  * create the new shared key and
4317                                  * insert/replace it
4318                                  */
4319                                 if (size > 0) {
4320                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4321                                         if (key == NULL) {
4322                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4323                                                 error = ENOMEM;
4324                                                 SCTP_TCB_UNLOCK(stcb);
4325                                                 break;
4326                                         }
4327                                 }
4328                                 shared_key = sctp_alloc_sharedkey();
4329                                 if (shared_key == NULL) {
4330                                         sctp_free_key(key);
4331                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4332                                         error = ENOMEM;
4333                                         SCTP_TCB_UNLOCK(stcb);
4334                                         break;
4335                                 }
4336                                 shared_key->key = key;
4337                                 shared_key->keyid = sca->sca_keynumber;
4338                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4339                                 SCTP_TCB_UNLOCK(stcb);
4340                         } else {
4341                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4342                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4343                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4344                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4345                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4346                                         SCTP_INP_WLOCK(inp);
4347                                         shared_keys = &inp->sctp_ep.shared_keys;
4348                                         /*
4349                                          * clear the cached keys on all
4350                                          * assocs for this key id
4351                                          */
4352                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4353                                         /*
4354                                          * create the new shared key and
4355                                          * insert/replace it
4356                                          */
4357                                         if (size > 0) {
4358                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4359                                                 if (key == NULL) {
4360                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4361                                                         error = ENOMEM;
4362                                                         SCTP_INP_WUNLOCK(inp);
4363                                                         break;
4364                                                 }
4365                                         }
4366                                         shared_key = sctp_alloc_sharedkey();
4367                                         if (shared_key == NULL) {
4368                                                 sctp_free_key(key);
4369                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4370                                                 error = ENOMEM;
4371                                                 SCTP_INP_WUNLOCK(inp);
4372                                                 break;
4373                                         }
4374                                         shared_key->key = key;
4375                                         shared_key->keyid = sca->sca_keynumber;
4376                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4377                                         SCTP_INP_WUNLOCK(inp);
4378                                 }
4379                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4380                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4381                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4382                                         SCTP_INP_RLOCK(inp);
4383                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4384                                                 SCTP_TCB_LOCK(stcb);
4385                                                 shared_keys = &stcb->asoc.shared_keys;
4386                                                 /*
4387                                                  * clear the cached keys for
4388                                                  * this key id
4389                                                  */
4390                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4391                                                 /*
4392                                                  * create the new shared key
4393                                                  * and insert/replace it
4394                                                  */
4395                                                 if (size > 0) {
4396                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4397                                                         if (key == NULL) {
4398                                                                 SCTP_TCB_UNLOCK(stcb);
4399                                                                 continue;
4400                                                         }
4401                                                 }
4402                                                 shared_key = sctp_alloc_sharedkey();
4403                                                 if (shared_key == NULL) {
4404                                                         sctp_free_key(key);
4405                                                         SCTP_TCB_UNLOCK(stcb);
4406                                                         continue;
4407                                                 }
4408                                                 shared_key->key = key;
4409                                                 shared_key->keyid = sca->sca_keynumber;
4410                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4411                                                 SCTP_TCB_UNLOCK(stcb);
4412                                         }
4413                                         SCTP_INP_RUNLOCK(inp);
4414                                 }
4415                         }
4416                         break;
4417                 }
4418         case SCTP_HMAC_IDENT:
4419                 {
4420                         struct sctp_hmacalgo *shmac;
4421                         sctp_hmaclist_t *hmaclist;
4422                         uint16_t hmacid;
4423                         uint32_t i;
4424
4425                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4426                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4427                             (shmac->shmac_number_of_idents > 0xffff)) {
4428                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4429                                 error = EINVAL;
4430                                 break;
4431                         }
4432
4433                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4434                         if (hmaclist == NULL) {
4435                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4436                                 error = ENOMEM;
4437                                 break;
4438                         }
4439                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4440                                 hmacid = shmac->shmac_idents[i];
4441                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4442                                          /* invalid HMACs were found */ ;
4443                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4444                                         error = EINVAL;
4445                                         sctp_free_hmaclist(hmaclist);
4446                                         goto sctp_set_hmac_done;
4447                                 }
4448                         }
4449                         for (i = 0; i < hmaclist->num_algo; i++) {
4450                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4451                                         /* already in list */
4452                                         break;
4453                                 }
4454                         }
4455                         if (i == hmaclist->num_algo) {
4456                                 /* not found in list */
4457                                 sctp_free_hmaclist(hmaclist);
4458                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4459                                 error = EINVAL;
4460                                 break;
4461                         }
4462                         /* set it on the endpoint */
4463                         SCTP_INP_WLOCK(inp);
4464                         if (inp->sctp_ep.local_hmacs)
4465                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4466                         inp->sctp_ep.local_hmacs = hmaclist;
4467                         SCTP_INP_WUNLOCK(inp);
4468         sctp_set_hmac_done:
4469                         break;
4470                 }
4471         case SCTP_AUTH_ACTIVE_KEY:
4472                 {
4473                         struct sctp_authkeyid *scact;
4474
4475                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4476                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4477
4478                         /* set the active key on the right place */
4479                         if (stcb) {
4480                                 /* set the active key on the assoc */
4481                                 if (sctp_auth_setactivekey(stcb,
4482                                     scact->scact_keynumber)) {
4483                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4484                                             SCTP_FROM_SCTP_USRREQ,
4485                                             EINVAL);
4486                                         error = EINVAL;
4487                                 }
4488                                 SCTP_TCB_UNLOCK(stcb);
4489                         } else {
4490                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4491                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4492                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4493                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4494                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4495                                         SCTP_INP_WLOCK(inp);
4496                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4497                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4498                                                 error = EINVAL;
4499                                         }
4500                                         SCTP_INP_WUNLOCK(inp);
4501                                 }
4502                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4503                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4504                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4505                                         SCTP_INP_RLOCK(inp);
4506                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4507                                                 SCTP_TCB_LOCK(stcb);
4508                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4509                                                 SCTP_TCB_UNLOCK(stcb);
4510                                         }
4511                                         SCTP_INP_RUNLOCK(inp);
4512                                 }
4513                         }
4514                         break;
4515                 }
4516         case SCTP_AUTH_DELETE_KEY:
4517                 {
4518                         struct sctp_authkeyid *scdel;
4519
4520                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4521                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4522
4523                         /* delete the key from the right place */
4524                         if (stcb) {
4525                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4526                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4527                                         error = EINVAL;
4528                                 }
4529                                 SCTP_TCB_UNLOCK(stcb);
4530                         } else {
4531                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4532                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4533                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4534                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4535                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4536                                         SCTP_INP_WLOCK(inp);
4537                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4538                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4539                                                 error = EINVAL;
4540                                         }
4541                                         SCTP_INP_WUNLOCK(inp);
4542                                 }
4543                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4544                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4545                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4546                                         SCTP_INP_RLOCK(inp);
4547                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4548                                                 SCTP_TCB_LOCK(stcb);
4549                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4550                                                 SCTP_TCB_UNLOCK(stcb);
4551                                         }
4552                                         SCTP_INP_RUNLOCK(inp);
4553                                 }
4554                         }
4555                         break;
4556                 }
4557         case SCTP_AUTH_DEACTIVATE_KEY:
4558                 {
4559                         struct sctp_authkeyid *keyid;
4560
4561                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4562                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4563
4564                         /* deactivate the key from the right place */
4565                         if (stcb) {
4566                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4567                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4568                                         error = EINVAL;
4569                                 }
4570                                 SCTP_TCB_UNLOCK(stcb);
4571                         } else {
4572                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4573                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4574                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4575                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4576                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4577                                         SCTP_INP_WLOCK(inp);
4578                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4579                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4580                                                 error = EINVAL;
4581                                         }
4582                                         SCTP_INP_WUNLOCK(inp);
4583                                 }
4584                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4585                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4586                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4587                                         SCTP_INP_RLOCK(inp);
4588                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4589                                                 SCTP_TCB_LOCK(stcb);
4590                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4591                                                 SCTP_TCB_UNLOCK(stcb);
4592                                         }
4593                                         SCTP_INP_RUNLOCK(inp);
4594                                 }
4595                         }
4596                         break;
4597                 }
4598         case SCTP_ENABLE_STREAM_RESET:
4599                 {
4600                         struct sctp_assoc_value *av;
4601
4602                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4603                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4604                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4605                                 error = EINVAL;
4606                                 break;
4607                         }
4608                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4609                         if (stcb) {
4610                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4611                                 SCTP_TCB_UNLOCK(stcb);
4612                         } else {
4613                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4614                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4615                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4616                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4617                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4618                                         SCTP_INP_WLOCK(inp);
4619                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4620                                         SCTP_INP_WUNLOCK(inp);
4621                                 }
4622                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4623                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4624                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4625                                         SCTP_INP_RLOCK(inp);
4626                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4627                                                 SCTP_TCB_LOCK(stcb);
4628                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4629                                                 SCTP_TCB_UNLOCK(stcb);
4630                                         }
4631                                         SCTP_INP_RUNLOCK(inp);
4632                                 }
4633                         }
4634                         break;
4635                 }
4636         case SCTP_RESET_STREAMS:
4637                 {
4638                         struct sctp_reset_streams *strrst;
4639                         int i, send_out = 0;
4640                         int send_in = 0;
4641
4642                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4643                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4644                         if (stcb == NULL) {
4645                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4646                                 error = ENOENT;
4647                                 break;
4648                         }
4649                         if (stcb->asoc.reconfig_supported == 0) {
4650                                 /*
4651                                  * Peer does not support the chunk type.
4652                                  */
4653                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4654                                 error = EOPNOTSUPP;
4655                                 SCTP_TCB_UNLOCK(stcb);
4656                                 break;
4657                         }
4658                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4660                                 error = EINVAL;
4661                                 SCTP_TCB_UNLOCK(stcb);
4662                                 break;
4663                         }
4664                         if (sizeof(struct sctp_reset_streams) +
4665                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4666                                 error = EINVAL;
4667                                 SCTP_TCB_UNLOCK(stcb);
4668                                 break;
4669                         }
4670                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4671                                 send_in = 1;
4672                                 if (stcb->asoc.stream_reset_outstanding) {
4673                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4674                                         error = EALREADY;
4675                                         SCTP_TCB_UNLOCK(stcb);
4676                                         break;
4677                                 }
4678                         }
4679                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4680                                 send_out = 1;
4681                         }
4682                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4683                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4684                                 error = ENOMEM;
4685                                 SCTP_TCB_UNLOCK(stcb);
4686                                 break;
4687                         }
4688                         if ((send_in == 0) && (send_out == 0)) {
4689                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4690                                 error = EINVAL;
4691                                 SCTP_TCB_UNLOCK(stcb);
4692                                 break;
4693                         }
4694                         for (i = 0; i < strrst->srs_number_streams; i++) {
4695                                 if ((send_in) &&
4696                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4697                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4698                                         error = EINVAL;
4699                                         break;
4700                                 }
4701                                 if ((send_out) &&
4702                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4703                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4704                                         error = EINVAL;
4705                                         break;
4706                                 }
4707                         }
4708                         if (error) {
4709                                 SCTP_TCB_UNLOCK(stcb);
4710                                 break;
4711                         }
4712                         if (send_out) {
4713                                 int cnt;
4714                                 uint16_t strm;
4715
4716                                 if (strrst->srs_number_streams) {
4717                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4718                                                 strm = strrst->srs_stream_list[i];
4719                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4720                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4721                                                         cnt++;
4722                                                 }
4723                                         }
4724                                 } else {
4725                                         /* Its all */
4726                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4727                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4728                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4729                                                         cnt++;
4730                                                 }
4731                                         }
4732                                 }
4733                         }
4734                         if (send_in) {
4735                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4736                                     strrst->srs_stream_list,
4737                                     send_in, 0, 0, 0, 0, 0);
4738                         } else {
4739                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4740                         }
4741                         if (error == 0) {
4742                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4743                         } else {
4744                                 /*
4745                                  * For outgoing streams don't report any
4746                                  * problems in sending the request to the
4747                                  * application. XXX: Double check resetting
4748                                  * incoming streams.
4749                                  */
4750                                 error = 0;
4751                         }
4752                         SCTP_TCB_UNLOCK(stcb);
4753                         break;
4754                 }
4755         case SCTP_ADD_STREAMS:
4756                 {
4757                         struct sctp_add_streams *stradd;
4758                         uint8_t addstream = 0;
4759                         uint16_t add_o_strmcnt = 0;
4760                         uint16_t add_i_strmcnt = 0;
4761
4762                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4763                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4764                         if (stcb == NULL) {
4765                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4766                                 error = ENOENT;
4767                                 break;
4768                         }
4769                         if (stcb->asoc.reconfig_supported == 0) {
4770                                 /*
4771                                  * Peer does not support the chunk type.
4772                                  */
4773                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4774                                 error = EOPNOTSUPP;
4775                                 SCTP_TCB_UNLOCK(stcb);
4776                                 break;
4777                         }
4778                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4779                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4780                                 error = EINVAL;
4781                                 SCTP_TCB_UNLOCK(stcb);
4782                                 break;
4783                         }
4784                         if (stcb->asoc.stream_reset_outstanding) {
4785                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4786                                 error = EALREADY;
4787                                 SCTP_TCB_UNLOCK(stcb);
4788                                 break;
4789                         }
4790                         if ((stradd->sas_outstrms == 0) &&
4791                             (stradd->sas_instrms == 0)) {
4792                                 error = EINVAL;
4793                                 goto skip_stuff;
4794                         }
4795                         if (stradd->sas_outstrms) {
4796                                 addstream = 1;
4797                                 /* We allocate here */
4798                                 add_o_strmcnt = stradd->sas_outstrms;
4799                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4800                                         /* You can't have more than 64k */
4801                                         error = EINVAL;
4802                                         goto skip_stuff;
4803                                 }
4804                         }
4805                         if (stradd->sas_instrms) {
4806                                 int cnt;
4807
4808                                 addstream |= 2;
4809                                 /*
4810                                  * We allocate inside
4811                                  * sctp_send_str_reset_req()
4812                                  */
4813                                 add_i_strmcnt = stradd->sas_instrms;
4814                                 cnt = add_i_strmcnt;
4815                                 cnt += stcb->asoc.streamincnt;
4816                                 if (cnt > 0x0000ffff) {
4817                                         /* You can't have more than 64k */
4818                                         error = EINVAL;
4819                                         goto skip_stuff;
4820                                 }
4821                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4822                                         /* More than you are allowed */
4823                                         error = EINVAL;
4824                                         goto skip_stuff;
4825                                 }
4826                         }
4827                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4828                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4829         skip_stuff:
4830                         SCTP_TCB_UNLOCK(stcb);
4831                         break;
4832                 }
4833         case SCTP_RESET_ASSOC:
4834                 {
4835                         int i;
4836                         uint32_t *value;
4837
4838                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4839                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4840                         if (stcb == NULL) {
4841                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4842                                 error = ENOENT;
4843                                 break;
4844                         }
4845                         if (stcb->asoc.reconfig_supported == 0) {
4846                                 /*
4847                                  * Peer does not support the chunk type.
4848                                  */
4849                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4850                                 error = EOPNOTSUPP;
4851                                 SCTP_TCB_UNLOCK(stcb);
4852                                 break;
4853                         }
4854                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4856                                 error = EINVAL;
4857                                 SCTP_TCB_UNLOCK(stcb);
4858                                 break;
4859                         }
4860                         if (stcb->asoc.stream_reset_outstanding) {
4861                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4862                                 error = EALREADY;
4863                                 SCTP_TCB_UNLOCK(stcb);
4864                                 break;
4865                         }
4866                         /*
4867                          * Is there any data pending in the send or sent
4868                          * queues?
4869                          */
4870                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4871                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4872                 busy_out:
4873                                 error = EBUSY;
4874                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4875                                 SCTP_TCB_UNLOCK(stcb);
4876                                 break;
4877                         }
4878                         /* Do any streams have data queued? */
4879                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4880                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4881                                         goto busy_out;
4882                                 }
4883                         }
4884                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4885                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4886                         SCTP_TCB_UNLOCK(stcb);
4887                         break;
4888                 }
4889         case SCTP_CONNECT_X:
4890                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4891                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4892                         error = EINVAL;
4893                         break;
4894                 }
4895                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4896                 break;
4897         case SCTP_CONNECT_X_DELAYED:
4898                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4899                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4900                         error = EINVAL;
4901                         break;
4902                 }
4903                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4904                 break;
4905         case SCTP_CONNECT_X_COMPLETE:
4906                 {
4907                         struct sockaddr *sa;
4908
4909                         /* FIXME MT: check correct? */
4910                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4911
4912                         /* find tcb */
4913                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4914                                 SCTP_INP_RLOCK(inp);
4915                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4916                                 if (stcb) {
4917                                         SCTP_TCB_LOCK(stcb);
4918                                 }
4919                                 SCTP_INP_RUNLOCK(inp);
4920                         } else {
4921                                 /*
4922                                  * We increment here since
4923                                  * sctp_findassociation_ep_addr() wil do a
4924                                  * decrement if it finds the stcb as long as
4925                                  * the locked tcb (last argument) is NOT a
4926                                  * TCB.. aka NULL.
4927                                  */
4928                                 SCTP_INP_INCR_REF(inp);
4929                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4930                                 if (stcb == NULL) {
4931                                         SCTP_INP_DECR_REF(inp);
4932                                 }
4933                         }
4934
4935                         if (stcb == NULL) {
4936                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4937                                 error = ENOENT;
4938                                 break;
4939                         }
4940                         if (stcb->asoc.delayed_connection == 1) {
4941                                 stcb->asoc.delayed_connection = 0;
4942                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4943                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4944                                     stcb->asoc.primary_destination,
4945                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4946                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4947                         } else {
4948                                 /*
4949                                  * already expired or did not use delayed
4950                                  * connectx
4951                                  */
4952                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4953                                 error = EALREADY;
4954                         }
4955                         SCTP_TCB_UNLOCK(stcb);
4956                         break;
4957                 }
4958         case SCTP_MAX_BURST:
4959                 {
4960                         struct sctp_assoc_value *av;
4961
4962                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4963                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4964
4965                         if (stcb) {
4966                                 stcb->asoc.max_burst = av->assoc_value;
4967                                 SCTP_TCB_UNLOCK(stcb);
4968                         } else {
4969                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4970                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4971                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4972                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4973                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4974                                         SCTP_INP_WLOCK(inp);
4975                                         inp->sctp_ep.max_burst = av->assoc_value;
4976                                         SCTP_INP_WUNLOCK(inp);
4977                                 }
4978                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4979                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4980                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4981                                         SCTP_INP_RLOCK(inp);
4982                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4983                                                 SCTP_TCB_LOCK(stcb);
4984                                                 stcb->asoc.max_burst = av->assoc_value;
4985                                                 SCTP_TCB_UNLOCK(stcb);
4986                                         }
4987                                         SCTP_INP_RUNLOCK(inp);
4988                                 }
4989                         }
4990                         break;
4991                 }
4992         case SCTP_MAXSEG:
4993                 {
4994                         struct sctp_assoc_value *av;
4995                         int ovh;
4996
4997                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4998                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4999
5000                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5001                                 ovh = SCTP_MED_OVERHEAD;
5002                         } else {
5003                                 ovh = SCTP_MED_V4_OVERHEAD;
5004                         }
5005                         if (stcb) {
5006                                 if (av->assoc_value) {
5007                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
5008                                 } else {
5009                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5010                                 }
5011                                 SCTP_TCB_UNLOCK(stcb);
5012                         } else {
5013                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5014                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5015                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5016                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
5017                                         SCTP_INP_WLOCK(inp);
5018                                         /*
5019                                          * FIXME MT: I think this is not in
5020                                          * tune with the API ID
5021                                          */
5022                                         if (av->assoc_value) {
5023                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
5024                                         } else {
5025                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
5026                                         }
5027                                         SCTP_INP_WUNLOCK(inp);
5028                                 } else {
5029                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5030                                         error = EINVAL;
5031                                 }
5032                         }
5033                         break;
5034                 }
5035         case SCTP_EVENTS:
5036                 {
5037                         struct sctp_event_subscribe *events;
5038
5039                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5040
5041                         SCTP_INP_WLOCK(inp);
5042                         if (events->sctp_data_io_event) {
5043                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5044                         } else {
5045                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5046                         }
5047
5048                         if (events->sctp_association_event) {
5049                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5050                         } else {
5051                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5052                         }
5053
5054                         if (events->sctp_address_event) {
5055                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5056                         } else {
5057                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5058                         }
5059
5060                         if (events->sctp_send_failure_event) {
5061                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5062                         } else {
5063                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5064                         }
5065
5066                         if (events->sctp_peer_error_event) {
5067                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5068                         } else {
5069                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5070                         }
5071
5072                         if (events->sctp_shutdown_event) {
5073                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5074                         } else {
5075                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5076                         }
5077
5078                         if (events->sctp_partial_delivery_event) {
5079                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5080                         } else {
5081                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5082                         }
5083
5084                         if (events->sctp_adaptation_layer_event) {
5085                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5086                         } else {
5087                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5088                         }
5089
5090                         if (events->sctp_authentication_event) {
5091                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5092                         } else {
5093                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5094                         }
5095
5096                         if (events->sctp_sender_dry_event) {
5097                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5098                         } else {
5099                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5100                         }
5101
5102                         if (events->sctp_stream_reset_event) {
5103                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5104                         } else {
5105                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5106                         }
5107                         SCTP_INP_WUNLOCK(inp);
5108
5109                         SCTP_INP_RLOCK(inp);
5110                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5111                                 SCTP_TCB_LOCK(stcb);
5112                                 if (events->sctp_association_event) {
5113                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5114                                 } else {
5115                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5116                                 }
5117                                 if (events->sctp_address_event) {
5118                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5119                                 } else {
5120                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5121                                 }
5122                                 if (events->sctp_send_failure_event) {
5123                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5124                                 } else {
5125                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5126                                 }
5127                                 if (events->sctp_peer_error_event) {
5128                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5129                                 } else {
5130                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5131                                 }
5132                                 if (events->sctp_shutdown_event) {
5133                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5134                                 } else {
5135                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5136                                 }
5137                                 if (events->sctp_partial_delivery_event) {
5138                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5139                                 } else {
5140                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5141                                 }
5142                                 if (events->sctp_adaptation_layer_event) {
5143                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5144                                 } else {
5145                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5146                                 }
5147                                 if (events->sctp_authentication_event) {
5148                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5149                                 } else {
5150                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5151                                 }
5152                                 if (events->sctp_sender_dry_event) {
5153                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5154                                 } else {
5155                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5156                                 }
5157                                 if (events->sctp_stream_reset_event) {
5158                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5159                                 } else {
5160                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5161                                 }
5162                                 SCTP_TCB_UNLOCK(stcb);
5163                         }
5164                         /*
5165                          * Send up the sender dry event only for 1-to-1
5166                          * style sockets.
5167                          */
5168                         if (events->sctp_sender_dry_event) {
5169                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5170                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5171                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5172                                         if (stcb) {
5173                                                 SCTP_TCB_LOCK(stcb);
5174                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5175                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5176                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5177                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5178                                                 }
5179                                                 SCTP_TCB_UNLOCK(stcb);
5180                                         }
5181                                 }
5182                         }
5183                         SCTP_INP_RUNLOCK(inp);
5184                         break;
5185                 }
5186         case SCTP_ADAPTATION_LAYER:
5187                 {
5188                         struct sctp_setadaptation *adap_bits;
5189
5190                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5191                         SCTP_INP_WLOCK(inp);
5192                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5193                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5194                         SCTP_INP_WUNLOCK(inp);
5195                         break;
5196                 }
5197 #ifdef SCTP_DEBUG
5198         case SCTP_SET_INITIAL_DBG_SEQ:
5199                 {
5200                         uint32_t *vvv;
5201
5202                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5203                         SCTP_INP_WLOCK(inp);
5204                         inp->sctp_ep.initial_sequence_debug = *vvv;
5205                         SCTP_INP_WUNLOCK(inp);
5206                         break;
5207                 }
5208 #endif
5209         case SCTP_DEFAULT_SEND_PARAM:
5210                 {
5211                         struct sctp_sndrcvinfo *s_info;
5212
5213                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5214                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5215
5216                         if (stcb) {
5217                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5218                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5219                                 } else {
5220                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5221                                         error = EINVAL;
5222                                 }
5223                                 SCTP_TCB_UNLOCK(stcb);
5224                         } else {
5225                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5226                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5227                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5228                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5229                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5230                                         SCTP_INP_WLOCK(inp);
5231                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5232                                         SCTP_INP_WUNLOCK(inp);
5233                                 }
5234                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5235                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5236                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5237                                         SCTP_INP_RLOCK(inp);
5238                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5239                                                 SCTP_TCB_LOCK(stcb);
5240                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5241                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5242                                                 }
5243                                                 SCTP_TCB_UNLOCK(stcb);
5244                                         }
5245                                         SCTP_INP_RUNLOCK(inp);
5246                                 }
5247                         }
5248                         break;
5249                 }
5250         case SCTP_PEER_ADDR_PARAMS:
5251                 {
5252                         struct sctp_paddrparams *paddrp;
5253                         struct sctp_nets *net;
5254                         struct sockaddr *addr;
5255 #if defined(INET) && defined(INET6)
5256                         struct sockaddr_in sin_store;
5257 #endif
5258
5259                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5260                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5261
5262 #if defined(INET) && defined(INET6)
5263                         if (paddrp->spp_address.ss_family == AF_INET6) {
5264                                 struct sockaddr_in6 *sin6;
5265
5266                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5267                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5268                                         in6_sin6_2_sin(&sin_store, sin6);
5269                                         addr = (struct sockaddr *)&sin_store;
5270                                 } else {
5271                                         addr = (struct sockaddr *)&paddrp->spp_address;
5272                                 }
5273                         } else {
5274                                 addr = (struct sockaddr *)&paddrp->spp_address;
5275                         }
5276 #else
5277                         addr = (struct sockaddr *)&paddrp->spp_address;
5278 #endif
5279                         if (stcb != NULL) {
5280                                 net = sctp_findnet(stcb, addr);
5281                         } else {
5282                                 /*
5283                                  * We increment here since
5284                                  * sctp_findassociation_ep_addr() wil do a
5285                                  * decrement if it finds the stcb as long as
5286                                  * the locked tcb (last argument) is NOT a
5287                                  * TCB.. aka NULL.
5288                                  */
5289                                 net = NULL;
5290                                 SCTP_INP_INCR_REF(inp);
5291                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5292                                     &net, NULL, NULL);
5293                                 if (stcb == NULL) {
5294                                         SCTP_INP_DECR_REF(inp);
5295                                 }
5296                         }
5297                         if ((stcb != NULL) && (net == NULL)) {
5298 #ifdef INET
5299                                 if (addr->sa_family == AF_INET) {
5300                                         struct sockaddr_in *sin;
5301
5302                                         sin = (struct sockaddr_in *)addr;
5303                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5304                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5305                                                 SCTP_TCB_UNLOCK(stcb);
5306                                                 error = EINVAL;
5307                                                 break;
5308                                         }
5309                                 } else
5310 #endif
5311 #ifdef INET6
5312                                 if (addr->sa_family == AF_INET6) {
5313                                         struct sockaddr_in6 *sin6;
5314
5315                                         sin6 = (struct sockaddr_in6 *)addr;
5316                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5317                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5318                                                 SCTP_TCB_UNLOCK(stcb);
5319                                                 error = EINVAL;
5320                                                 break;
5321                                         }
5322                                 } else
5323 #endif
5324                                 {
5325                                         error = EAFNOSUPPORT;
5326                                         SCTP_TCB_UNLOCK(stcb);
5327                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5328                                         break;
5329                                 }
5330                         }
5331                         /* sanity checks */
5332                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5333                                 if (stcb)
5334                                         SCTP_TCB_UNLOCK(stcb);
5335                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5336                                 return (EINVAL);
5337                         }
5338
5339                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5340                                 if (stcb)
5341                                         SCTP_TCB_UNLOCK(stcb);
5342                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5343                                 return (EINVAL);
5344                         }
5345                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5346                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5347                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5348                                 if (stcb)
5349                                         SCTP_TCB_UNLOCK(stcb);
5350                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5351                                 return (EINVAL);
5352                         }
5353
5354                         if (stcb != NULL) {
5355                                 /************************TCB SPECIFIC SET ******************/
5356                                 if (net != NULL) {
5357                                         /************************NET SPECIFIC SET ******************/
5358                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5359                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5360                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5361                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5362                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5363                                                 }
5364                                                 net->dest_state |= SCTP_ADDR_NOHB;
5365                                         }
5366                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5367                                                 if (paddrp->spp_hbinterval) {
5368                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5369                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5370                                                         net->heart_beat_delay = 0;
5371                                                 }
5372                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5373                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5374                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5375                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5376                                         }
5377                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5378                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5379                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5380                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5381                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5382                                                 }
5383                                         }
5384                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5385                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5386                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5387                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5388                                                 }
5389                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5390                                                 net->mtu = paddrp->spp_pathmtu;
5391                                                 switch (net->ro._l_addr.sa.sa_family) {
5392 #ifdef INET
5393                                                 case AF_INET:
5394                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5395                                                         break;
5396 #endif
5397 #ifdef INET6
5398                                                 case AF_INET6:
5399                                                         net->mtu += SCTP_MIN_OVERHEAD;
5400                                                         break;
5401 #endif
5402                                                 default:
5403                                                         break;
5404                                                 }
5405                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5406                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5407                                                 }
5408                                         }
5409                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5410                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5411                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5412                                                 }
5413                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5414                                         }
5415                                         if (paddrp->spp_pathmaxrxt) {
5416                                                 if (net->dest_state & SCTP_ADDR_PF) {
5417                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5418                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5419                                                         }
5420                                                 } else {
5421                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5422                                                             (net->error_count > net->pf_threshold)) {
5423                                                                 net->dest_state |= SCTP_ADDR_PF;
5424                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5425                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5426                                                                     stcb->sctp_ep, stcb, net,
5427                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5428                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5429                                                         }
5430                                                 }
5431                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5432                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5433                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5434                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5435                                                         }
5436                                                 } else {
5437                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5438                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5439                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5440                                                         }
5441                                                 }
5442                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5443                                         }
5444                                         if (paddrp->spp_flags & SPP_DSCP) {
5445                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5446                                                 net->dscp |= 0x01;
5447                                         }
5448 #ifdef INET6
5449                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5450                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5451                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5452                                                         net->flowlabel |= 0x80000000;
5453                                                 }
5454                                         }
5455 #endif
5456                                 } else {
5457                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5458                                         if (paddrp->spp_pathmaxrxt != 0) {
5459                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5460                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5461                                                         if (net->dest_state & SCTP_ADDR_PF) {
5462                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5463                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5464                                                                 }
5465                                                         } else {
5466                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5467                                                                     (net->error_count > net->pf_threshold)) {
5468                                                                         net->dest_state |= SCTP_ADDR_PF;
5469                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5470                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5471                                                                             stcb->sctp_ep, stcb, net,
5472                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5473                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5474                                                                 }
5475                                                         }
5476                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5477                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5478                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5479                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5480                                                                 }
5481                                                         } else {
5482                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5483                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5484                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5485                                                                 }
5486                                                         }
5487                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5488                                                 }
5489                                         }
5490
5491                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5492                                                 if (paddrp->spp_hbinterval != 0) {
5493                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5494                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5495                                                         stcb->asoc.heart_beat_delay = 0;
5496                                                 }
5497                                                 /* Turn back on the timer */
5498                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5499                                                         if (paddrp->spp_hbinterval != 0) {
5500                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5501                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5502                                                                 net->heart_beat_delay = 0;
5503                                                         }
5504                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5505                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5506                                                         }
5507                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5508                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5509                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5510                                                 }
5511                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5512                                         }
5513                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5514                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5515                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5516                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5517                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5518                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5519                                                                             inp, stcb, net,
5520                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5521                                                                 }
5522                                                         }
5523                                                 }
5524                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5525                                         }
5526                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5527                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5528                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5529                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5530                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5531                                                         }
5532                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5533                                                         net->mtu = paddrp->spp_pathmtu;
5534                                                         switch (net->ro._l_addr.sa.sa_family) {
5535 #ifdef INET
5536                                                         case AF_INET:
5537                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5538                                                                 break;
5539 #endif
5540 #ifdef INET6
5541                                                         case AF_INET6:
5542                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5543                                                                 break;
5544 #endif
5545                                                         default:
5546                                                                 break;
5547                                                         }
5548                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5549                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5550                                                         }
5551                                                 }
5552                                                 stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5553                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5554                                         }
5555                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5556                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5557                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5558                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5559                                                         }
5560                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5561                                                 }
5562                                                 stcb->asoc.default_mtu = 0;
5563                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5564                                         }
5565                                         if (paddrp->spp_flags & SPP_DSCP) {
5566                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5567                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5568                                                         net->dscp |= 0x01;
5569                                                 }
5570                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5571                                                 stcb->asoc.default_dscp |= 0x01;
5572                                         }
5573 #ifdef INET6
5574                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5575                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5576                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5577                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5578                                                                 net->flowlabel |= 0x80000000;
5579                                                         }
5580                                                 }
5581                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5582                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5583                                         }
5584 #endif
5585                                 }
5586                                 SCTP_TCB_UNLOCK(stcb);
5587                         } else {
5588                                 /************************NO TCB, SET TO default stuff ******************/
5589                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5590                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5591                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5592                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5593                                         SCTP_INP_WLOCK(inp);
5594                                         /*
5595                                          * For the TOS/FLOWLABEL stuff you
5596                                          * set it with the options on the
5597                                          * socket
5598                                          */
5599                                         if (paddrp->spp_pathmaxrxt != 0) {
5600                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5601                                         }
5602
5603                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5604                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5605                                         else if (paddrp->spp_hbinterval != 0) {
5606                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5607                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5608                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5609                                         }
5610
5611                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5612                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5613                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5614                                                 } else if (paddrp->spp_hbinterval) {
5615                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5616                                                 }
5617                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5618                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5619                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5620                                         }
5621                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5622                                                 inp->sctp_ep.default_mtu = 0;
5623                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5624                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5625                                                 inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5626                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5627                                         }
5628                                         if (paddrp->spp_flags & SPP_DSCP) {
5629                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5630                                                 inp->sctp_ep.default_dscp |= 0x01;
5631                                         }
5632 #ifdef INET6
5633                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5634                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5635                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5636                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5637                                                 }
5638                                         }
5639 #endif
5640                                         SCTP_INP_WUNLOCK(inp);
5641                                 } else {
5642                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5643                                         error = EINVAL;
5644                                 }
5645                         }
5646                         break;
5647                 }
5648         case SCTP_RTOINFO:
5649                 {
5650                         struct sctp_rtoinfo *srto;
5651                         uint32_t new_init, new_min, new_max;
5652
5653                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5654                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5655
5656                         if (stcb) {
5657                                 if (srto->srto_initial)
5658                                         new_init = srto->srto_initial;
5659                                 else
5660                                         new_init = stcb->asoc.initial_rto;
5661                                 if (srto->srto_max)
5662                                         new_max = srto->srto_max;
5663                                 else
5664                                         new_max = stcb->asoc.maxrto;
5665                                 if (srto->srto_min)
5666                                         new_min = srto->srto_min;
5667                                 else
5668                                         new_min = stcb->asoc.minrto;
5669                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5670                                         stcb->asoc.initial_rto = new_init;
5671                                         stcb->asoc.maxrto = new_max;
5672                                         stcb->asoc.minrto = new_min;
5673                                 } else {
5674                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5675                                         error = EINVAL;
5676                                 }
5677                                 SCTP_TCB_UNLOCK(stcb);
5678                         } else {
5679                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5680                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5681                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5682                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5683                                         SCTP_INP_WLOCK(inp);
5684                                         if (srto->srto_initial)
5685                                                 new_init = srto->srto_initial;
5686                                         else
5687                                                 new_init = inp->sctp_ep.initial_rto;
5688                                         if (srto->srto_max)
5689                                                 new_max = srto->srto_max;
5690                                         else
5691                                                 new_max = inp->sctp_ep.sctp_maxrto;
5692                                         if (srto->srto_min)
5693                                                 new_min = srto->srto_min;
5694                                         else
5695                                                 new_min = inp->sctp_ep.sctp_minrto;
5696                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5697                                                 inp->sctp_ep.initial_rto = new_init;
5698                                                 inp->sctp_ep.sctp_maxrto = new_max;
5699                                                 inp->sctp_ep.sctp_minrto = new_min;
5700                                         } else {
5701                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5702                                                 error = EINVAL;
5703                                         }
5704                                         SCTP_INP_WUNLOCK(inp);
5705                                 } else {
5706                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5707                                         error = EINVAL;
5708                                 }
5709                         }
5710                         break;
5711                 }
5712         case SCTP_ASSOCINFO:
5713                 {
5714                         struct sctp_assocparams *sasoc;
5715
5716                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5717                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5718                         if (sasoc->sasoc_cookie_life) {
5719                                 /* boundary check the cookie life */
5720                                 if (sasoc->sasoc_cookie_life < 1000)
5721                                         sasoc->sasoc_cookie_life = 1000;
5722                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5723                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5724                                 }
5725                         }
5726                         if (stcb) {
5727                                 if (sasoc->sasoc_asocmaxrxt)
5728                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5729                                 if (sasoc->sasoc_cookie_life) {
5730                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5731                                 }
5732                                 SCTP_TCB_UNLOCK(stcb);
5733                         } else {
5734                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5735                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5736                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5737                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5738                                         SCTP_INP_WLOCK(inp);
5739                                         if (sasoc->sasoc_asocmaxrxt)
5740                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5741                                         if (sasoc->sasoc_cookie_life) {
5742                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5743                                         }
5744                                         SCTP_INP_WUNLOCK(inp);
5745                                 } else {
5746                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5747                                         error = EINVAL;
5748                                 }
5749                         }
5750                         break;
5751                 }
5752         case SCTP_INITMSG:
5753                 {
5754                         struct sctp_initmsg *sinit;
5755
5756                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5757                         SCTP_INP_WLOCK(inp);
5758                         if (sinit->sinit_num_ostreams)
5759                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5760
5761                         if (sinit->sinit_max_instreams)
5762                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5763
5764                         if (sinit->sinit_max_attempts)
5765                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5766
5767                         if (sinit->sinit_max_init_timeo)
5768                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5769                         SCTP_INP_WUNLOCK(inp);
5770                         break;
5771                 }
5772         case SCTP_PRIMARY_ADDR:
5773                 {
5774                         struct sctp_setprim *spa;
5775                         struct sctp_nets *net;
5776                         struct sockaddr *addr;
5777 #if defined(INET) && defined(INET6)
5778                         struct sockaddr_in sin_store;
5779 #endif
5780
5781                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5782                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5783
5784 #if defined(INET) && defined(INET6)
5785                         if (spa->ssp_addr.ss_family == AF_INET6) {
5786                                 struct sockaddr_in6 *sin6;
5787
5788                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5789                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5790                                         in6_sin6_2_sin(&sin_store, sin6);
5791                                         addr = (struct sockaddr *)&sin_store;
5792                                 } else {
5793                                         addr = (struct sockaddr *)&spa->ssp_addr;
5794                                 }
5795                         } else {
5796                                 addr = (struct sockaddr *)&spa->ssp_addr;
5797                         }
5798 #else
5799                         addr = (struct sockaddr *)&spa->ssp_addr;
5800 #endif
5801                         if (stcb != NULL) {
5802                                 net = sctp_findnet(stcb, addr);
5803                         } else {
5804                                 /*
5805                                  * We increment here since
5806                                  * sctp_findassociation_ep_addr() wil do a
5807                                  * decrement if it finds the stcb as long as
5808                                  * the locked tcb (last argument) is NOT a
5809                                  * TCB.. aka NULL.
5810                                  */
5811                                 net = NULL;
5812                                 SCTP_INP_INCR_REF(inp);
5813                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5814                                     &net, NULL, NULL);
5815                                 if (stcb == NULL) {
5816                                         SCTP_INP_DECR_REF(inp);
5817                                 }
5818                         }
5819
5820                         if ((stcb != NULL) && (net != NULL)) {
5821                                 if (net != stcb->asoc.primary_destination) {
5822                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5823                                                 /* Ok we need to set it */
5824                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5825                                                         if ((stcb->asoc.alternate) &&
5826                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5827                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5828                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5829                                                                 stcb->asoc.alternate = NULL;
5830                                                         }
5831                                                 } else {
5832                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5833                                                         error = EINVAL;
5834                                                 }
5835                                         } else {
5836                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5837                                                 error = EINVAL;
5838                                         }
5839                                 }
5840                         } else {
5841                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5842                                 error = EINVAL;
5843                         }
5844                         if (stcb != NULL) {
5845                                 SCTP_TCB_UNLOCK(stcb);
5846                         }
5847                         break;
5848                 }
5849         case SCTP_SET_DYNAMIC_PRIMARY:
5850                 {
5851                         union sctp_sockstore *ss;
5852
5853                         error = priv_check(curthread,
5854                             PRIV_NETINET_RESERVEDPORT);
5855                         if (error)
5856                                 break;
5857
5858                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5859                         /* SUPER USER CHECK? */
5860                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5861                         break;
5862                 }
5863         case SCTP_SET_PEER_PRIMARY_ADDR:
5864                 {
5865                         struct sctp_setpeerprim *sspp;
5866                         struct sockaddr *addr;
5867 #if defined(INET) && defined(INET6)
5868                         struct sockaddr_in sin_store;
5869 #endif
5870
5871                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5872                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5873                         if (stcb != NULL) {
5874                                 struct sctp_ifa *ifa;
5875
5876 #if defined(INET) && defined(INET6)
5877                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5878                                         struct sockaddr_in6 *sin6;
5879
5880                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5881                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5882                                                 in6_sin6_2_sin(&sin_store, sin6);
5883                                                 addr = (struct sockaddr *)&sin_store;
5884                                         } else {
5885                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5886                                         }
5887                                 } else {
5888                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5889                                 }
5890 #else
5891                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5892 #endif
5893                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5894                                 if (ifa == NULL) {
5895                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5896                                         error = EINVAL;
5897                                         goto out_of_it;
5898                                 }
5899                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5900                                         /*
5901                                          * Must validate the ifa found is in
5902                                          * our ep
5903                                          */
5904                                         struct sctp_laddr *laddr;
5905                                         int found = 0;
5906
5907                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5908                                                 if (laddr->ifa == NULL) {
5909                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5910                                                             __func__);
5911                                                         continue;
5912                                                 }
5913                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5914                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5915                                                         continue;
5916                                                 }
5917                                                 if (laddr->ifa == ifa) {
5918                                                         found = 1;
5919                                                         break;
5920                                                 }
5921                                         }
5922                                         if (!found) {
5923                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5924                                                 error = EINVAL;
5925                                                 goto out_of_it;
5926                                         }
5927                                 } else {
5928                                         switch (addr->sa_family) {
5929 #ifdef INET
5930                                         case AF_INET:
5931                                                 {
5932                                                         struct sockaddr_in *sin;
5933
5934                                                         sin = (struct sockaddr_in *)addr;
5935                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5936                                                             &sin->sin_addr) != 0) {
5937                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5938                                                                 error = EINVAL;
5939                                                                 goto out_of_it;
5940                                                         }
5941                                                         break;
5942                                                 }
5943 #endif
5944 #ifdef INET6
5945                                         case AF_INET6:
5946                                                 {
5947                                                         struct sockaddr_in6 *sin6;
5948
5949                                                         sin6 = (struct sockaddr_in6 *)addr;
5950                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5951                                                             &sin6->sin6_addr) != 0) {
5952                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5953                                                                 error = EINVAL;
5954                                                                 goto out_of_it;
5955                                                         }
5956                                                         break;
5957                                                 }
5958 #endif
5959                                         default:
5960                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5961                                                 error = EINVAL;
5962                                                 goto out_of_it;
5963                                         }
5964                                 }
5965                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5966                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5967                                         error = EINVAL;
5968                                 }
5969                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5970                 out_of_it:
5971                                 SCTP_TCB_UNLOCK(stcb);
5972                         } else {
5973                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5974                                 error = EINVAL;
5975                         }
5976                         break;
5977                 }
5978         case SCTP_BINDX_ADD_ADDR:
5979                 {
5980                         struct sockaddr *sa;
5981                         struct thread *td;
5982
5983                         td = (struct thread *)p;
5984                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5985 #ifdef INET
5986                         if (sa->sa_family == AF_INET) {
5987                                 if (optsize < sizeof(struct sockaddr_in)) {
5988                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5989                                         error = EINVAL;
5990                                         break;
5991                                 }
5992                                 if (td != NULL &&
5993                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
5994                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5995                                         break;
5996                                 }
5997                         } else
5998 #endif
5999 #ifdef INET6
6000                         if (sa->sa_family == AF_INET6) {
6001                                 if (optsize < sizeof(struct sockaddr_in6)) {
6002                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6003                                         error = EINVAL;
6004                                         break;
6005                                 }
6006                                 if (td != NULL &&
6007                                     (error = prison_local_ip6(td->td_ucred,
6008                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6009                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6010                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6011                                         break;
6012                                 }
6013                         } else
6014 #endif
6015                         {
6016                                 error = EAFNOSUPPORT;
6017                                 break;
6018                         }
6019                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
6020                         break;
6021                 }
6022         case SCTP_BINDX_REM_ADDR:
6023                 {
6024                         struct sockaddr *sa;
6025                         struct thread *td;
6026
6027                         td = (struct thread *)p;
6028
6029                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
6030 #ifdef INET
6031                         if (sa->sa_family == AF_INET) {
6032                                 if (optsize < sizeof(struct sockaddr_in)) {
6033                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6034                                         error = EINVAL;
6035                                         break;
6036                                 }
6037                                 if (td != NULL &&
6038                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6039                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6040                                         break;
6041                                 }
6042                         } else
6043 #endif
6044 #ifdef INET6
6045                         if (sa->sa_family == AF_INET6) {
6046                                 if (optsize < sizeof(struct sockaddr_in6)) {
6047                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6048                                         error = EINVAL;
6049                                         break;
6050                                 }
6051                                 if (td != NULL &&
6052                                     (error = prison_local_ip6(td->td_ucred,
6053                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6054                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6055                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6056                                         break;
6057                                 }
6058                         } else
6059 #endif
6060                         {
6061                                 error = EAFNOSUPPORT;
6062                                 break;
6063                         }
6064                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6065                         break;
6066                 }
6067         case SCTP_EVENT:
6068                 {
6069                         struct sctp_event *event;
6070                         uint32_t event_type;
6071
6072                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6073                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6074                         switch (event->se_type) {
6075                         case SCTP_ASSOC_CHANGE:
6076                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6077                                 break;
6078                         case SCTP_PEER_ADDR_CHANGE:
6079                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6080                                 break;
6081                         case SCTP_REMOTE_ERROR:
6082                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6083                                 break;
6084                         case SCTP_SEND_FAILED:
6085                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6086                                 break;
6087                         case SCTP_SHUTDOWN_EVENT:
6088                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6089                                 break;
6090                         case SCTP_ADAPTATION_INDICATION:
6091                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6092                                 break;
6093                         case SCTP_PARTIAL_DELIVERY_EVENT:
6094                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6095                                 break;
6096                         case SCTP_AUTHENTICATION_EVENT:
6097                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6098                                 break;
6099                         case SCTP_STREAM_RESET_EVENT:
6100                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6101                                 break;
6102                         case SCTP_SENDER_DRY_EVENT:
6103                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6104                                 break;
6105                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6106                                 event_type = 0;
6107                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6108                                 error = ENOTSUP;
6109                                 break;
6110                         case SCTP_ASSOC_RESET_EVENT:
6111                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6112                                 break;
6113                         case SCTP_STREAM_CHANGE_EVENT:
6114                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6115                                 break;
6116                         case SCTP_SEND_FAILED_EVENT:
6117                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6118                                 break;
6119                         default:
6120                                 event_type = 0;
6121                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6122                                 error = EINVAL;
6123                                 break;
6124                         }
6125                         if (event_type > 0) {
6126                                 if (stcb) {
6127                                         if (event->se_on) {
6128                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6129                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6130                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6131                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6132                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6133                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6134                                                         }
6135                                                 }
6136                                         } else {
6137                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6138                                         }
6139                                         SCTP_TCB_UNLOCK(stcb);
6140                                 } else {
6141                                         /*
6142                                          * We don't want to send up a storm
6143                                          * of events, so return an error for
6144                                          * sender dry events
6145                                          */
6146                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6147                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6148                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6149                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6150                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6151                                                 error = ENOTSUP;
6152                                                 break;
6153                                         }
6154                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6155                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6156                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6157                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6158                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6159                                                 SCTP_INP_WLOCK(inp);
6160                                                 if (event->se_on) {
6161                                                         sctp_feature_on(inp, event_type);
6162                                                 } else {
6163                                                         sctp_feature_off(inp, event_type);
6164                                                 }
6165                                                 SCTP_INP_WUNLOCK(inp);
6166                                         }
6167                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6168                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6169                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6170                                                 SCTP_INP_RLOCK(inp);
6171                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6172                                                         SCTP_TCB_LOCK(stcb);
6173                                                         if (event->se_on) {
6174                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6175                                                         } else {
6176                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6177                                                         }
6178                                                         SCTP_TCB_UNLOCK(stcb);
6179                                                 }
6180                                                 SCTP_INP_RUNLOCK(inp);
6181                                         }
6182                                 }
6183                         } else {
6184                                 if (stcb) {
6185                                         SCTP_TCB_UNLOCK(stcb);
6186                                 }
6187                         }
6188                         break;
6189                 }
6190         case SCTP_RECVRCVINFO:
6191                 {
6192                         int *onoff;
6193
6194                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6195                         SCTP_INP_WLOCK(inp);
6196                         if (*onoff != 0) {
6197                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6198                         } else {
6199                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6200                         }
6201                         SCTP_INP_WUNLOCK(inp);
6202                         break;
6203                 }
6204         case SCTP_RECVNXTINFO:
6205                 {
6206                         int *onoff;
6207
6208                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6209                         SCTP_INP_WLOCK(inp);
6210                         if (*onoff != 0) {
6211                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6212                         } else {
6213                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6214                         }
6215                         SCTP_INP_WUNLOCK(inp);
6216                         break;
6217                 }
6218         case SCTP_DEFAULT_SNDINFO:
6219                 {
6220                         struct sctp_sndinfo *info;
6221                         uint16_t policy;
6222
6223                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6224                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6225
6226                         if (stcb) {
6227                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6228                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6229                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6230                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6231                                         stcb->asoc.def_send.sinfo_flags |= policy;
6232                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6233                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6234                                 } else {
6235                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6236                                         error = EINVAL;
6237                                 }
6238                                 SCTP_TCB_UNLOCK(stcb);
6239                         } else {
6240                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6241                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6242                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6243                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6244                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6245                                         SCTP_INP_WLOCK(inp);
6246                                         inp->def_send.sinfo_stream = info->snd_sid;
6247                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6248                                         inp->def_send.sinfo_flags = info->snd_flags;
6249                                         inp->def_send.sinfo_flags |= policy;
6250                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6251                                         inp->def_send.sinfo_context = info->snd_context;
6252                                         SCTP_INP_WUNLOCK(inp);
6253                                 }
6254                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6255                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6256                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6257                                         SCTP_INP_RLOCK(inp);
6258                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6259                                                 SCTP_TCB_LOCK(stcb);
6260                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6261                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6262                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6263                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6264                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6265                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6266                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6267                                                 }
6268                                                 SCTP_TCB_UNLOCK(stcb);
6269                                         }
6270                                         SCTP_INP_RUNLOCK(inp);
6271                                 }
6272                         }
6273                         break;
6274                 }
6275         case SCTP_DEFAULT_PRINFO:
6276                 {
6277                         struct sctp_default_prinfo *info;
6278
6279                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6280                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6281
6282                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6283                                 if (stcb) {
6284                                         SCTP_TCB_UNLOCK(stcb);
6285                                 }
6286                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6287                                 error = EINVAL;
6288                                 break;
6289                         }
6290                         if (stcb) {
6291                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6292                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6293                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6294                                 SCTP_TCB_UNLOCK(stcb);
6295                         } else {
6296                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6297                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6298                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6299                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6300                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6301                                         SCTP_INP_WLOCK(inp);
6302                                         inp->def_send.sinfo_flags &= 0xfff0;
6303                                         inp->def_send.sinfo_flags |= info->pr_policy;
6304                                         inp->def_send.sinfo_timetolive = info->pr_value;
6305                                         SCTP_INP_WUNLOCK(inp);
6306                                 }
6307                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6308                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6309                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6310                                         SCTP_INP_RLOCK(inp);
6311                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6312                                                 SCTP_TCB_LOCK(stcb);
6313                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6314                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6315                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6316                                                 SCTP_TCB_UNLOCK(stcb);
6317                                         }
6318                                         SCTP_INP_RUNLOCK(inp);
6319                                 }
6320                         }
6321                         break;
6322                 }
6323         case SCTP_PEER_ADDR_THLDS:
6324                 /* Applies to the specific association */
6325                 {
6326                         struct sctp_paddrthlds *thlds;
6327                         struct sctp_nets *net;
6328                         struct sockaddr *addr;
6329 #if defined(INET) && defined(INET6)
6330                         struct sockaddr_in sin_store;
6331 #endif
6332
6333                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6334                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6335
6336 #if defined(INET) && defined(INET6)
6337                         if (thlds->spt_address.ss_family == AF_INET6) {
6338                                 struct sockaddr_in6 *sin6;
6339
6340                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6341                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6342                                         in6_sin6_2_sin(&sin_store, sin6);
6343                                         addr = (struct sockaddr *)&sin_store;
6344                                 } else {
6345                                         addr = (struct sockaddr *)&thlds->spt_address;
6346                                 }
6347                         } else {
6348                                 addr = (struct sockaddr *)&thlds->spt_address;
6349                         }
6350 #else
6351                         addr = (struct sockaddr *)&thlds->spt_address;
6352 #endif
6353                         if (stcb != NULL) {
6354                                 net = sctp_findnet(stcb, addr);
6355                         } else {
6356                                 /*
6357                                  * We increment here since
6358                                  * sctp_findassociation_ep_addr() wil do a
6359                                  * decrement if it finds the stcb as long as
6360                                  * the locked tcb (last argument) is NOT a
6361                                  * TCB.. aka NULL.
6362                                  */
6363                                 net = NULL;
6364                                 SCTP_INP_INCR_REF(inp);
6365                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6366                                     &net, NULL, NULL);
6367                                 if (stcb == NULL) {
6368                                         SCTP_INP_DECR_REF(inp);
6369                                 }
6370                         }
6371                         if ((stcb != NULL) && (net == NULL)) {
6372 #ifdef INET
6373                                 if (addr->sa_family == AF_INET) {
6374                                         struct sockaddr_in *sin;
6375
6376                                         sin = (struct sockaddr_in *)addr;
6377                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
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 #ifdef INET6
6386                                 if (addr->sa_family == AF_INET6) {
6387                                         struct sockaddr_in6 *sin6;
6388
6389                                         sin6 = (struct sockaddr_in6 *)addr;
6390                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6391                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6392                                                 SCTP_TCB_UNLOCK(stcb);
6393                                                 error = EINVAL;
6394                                                 break;
6395                                         }
6396                                 } else
6397 #endif
6398                                 {
6399                                         error = EAFNOSUPPORT;
6400                                         SCTP_TCB_UNLOCK(stcb);
6401                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6402                                         break;
6403                                 }
6404                         }
6405                         if (thlds->spt_pathcpthld != 0xffff) {
6406                                 if (stcb != NULL) {
6407                                         SCTP_TCB_UNLOCK(stcb);
6408                                 }
6409                                 error = EINVAL;
6410                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6411                                 break;
6412                         }
6413                         if (stcb != NULL) {
6414                                 if (net != NULL) {
6415                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6416                                         net->pf_threshold = thlds->spt_pathpfthld;
6417                                         if (net->dest_state & SCTP_ADDR_PF) {
6418                                                 if ((net->error_count > net->failure_threshold) ||
6419                                                     (net->error_count <= net->pf_threshold)) {
6420                                                         net->dest_state &= ~SCTP_ADDR_PF;
6421                                                 }
6422                                         } else {
6423                                                 if ((net->error_count > net->pf_threshold) &&
6424                                                     (net->error_count <= net->failure_threshold)) {
6425                                                         net->dest_state |= SCTP_ADDR_PF;
6426                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6427                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6428                                                             stcb->sctp_ep, stcb, net,
6429                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6430                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6431                                                 }
6432                                         }
6433                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6434                                                 if (net->error_count > net->failure_threshold) {
6435                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6436                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6437                                                 }
6438                                         } else {
6439                                                 if (net->error_count <= net->failure_threshold) {
6440                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6441                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6442                                                 }
6443                                         }
6444                                 } else {
6445                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6446                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6447                                                 net->pf_threshold = thlds->spt_pathpfthld;
6448                                                 if (net->dest_state & SCTP_ADDR_PF) {
6449                                                         if ((net->error_count > net->failure_threshold) ||
6450                                                             (net->error_count <= net->pf_threshold)) {
6451                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6452                                                         }
6453                                                 } else {
6454                                                         if ((net->error_count > net->pf_threshold) &&
6455                                                             (net->error_count <= net->failure_threshold)) {
6456                                                                 net->dest_state |= SCTP_ADDR_PF;
6457                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6458                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6459                                                                     stcb->sctp_ep, stcb, net,
6460                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6461                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6462                                                         }
6463                                                 }
6464                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6465                                                         if (net->error_count > net->failure_threshold) {
6466                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6467                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6468                                                         }
6469                                                 } else {
6470                                                         if (net->error_count <= net->failure_threshold) {
6471                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6472                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6473                                                         }
6474                                                 }
6475                                         }
6476                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6477                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6478                                 }
6479                                 SCTP_TCB_UNLOCK(stcb);
6480                         } else {
6481                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6482                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6483                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6484                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6485                                         SCTP_INP_WLOCK(inp);
6486                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6487                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6488                                         SCTP_INP_WUNLOCK(inp);
6489                                 } else {
6490                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6491                                         error = EINVAL;
6492                                 }
6493                         }
6494                         break;
6495                 }
6496         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6497                 {
6498                         struct sctp_udpencaps *encaps;
6499                         struct sctp_nets *net;
6500                         struct sockaddr *addr;
6501 #if defined(INET) && defined(INET6)
6502                         struct sockaddr_in sin_store;
6503 #endif
6504
6505                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6506                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6507
6508 #if defined(INET) && defined(INET6)
6509                         if (encaps->sue_address.ss_family == AF_INET6) {
6510                                 struct sockaddr_in6 *sin6;
6511
6512                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6513                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6514                                         in6_sin6_2_sin(&sin_store, sin6);
6515                                         addr = (struct sockaddr *)&sin_store;
6516                                 } else {
6517                                         addr = (struct sockaddr *)&encaps->sue_address;
6518                                 }
6519                         } else {
6520                                 addr = (struct sockaddr *)&encaps->sue_address;
6521                         }
6522 #else
6523                         addr = (struct sockaddr *)&encaps->sue_address;
6524 #endif
6525                         if (stcb != NULL) {
6526                                 net = sctp_findnet(stcb, addr);
6527                         } else {
6528                                 /*
6529                                  * We increment here since
6530                                  * sctp_findassociation_ep_addr() wil do a
6531                                  * decrement if it finds the stcb as long as
6532                                  * the locked tcb (last argument) is NOT a
6533                                  * TCB.. aka NULL.
6534                                  */
6535                                 net = NULL;
6536                                 SCTP_INP_INCR_REF(inp);
6537                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6538                                 if (stcb == NULL) {
6539                                         SCTP_INP_DECR_REF(inp);
6540                                 }
6541                         }
6542                         if ((stcb != NULL) && (net == NULL)) {
6543 #ifdef INET
6544                                 if (addr->sa_family == AF_INET) {
6545                                         struct sockaddr_in *sin;
6546
6547                                         sin = (struct sockaddr_in *)addr;
6548                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
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 #ifdef INET6
6557                                 if (addr->sa_family == AF_INET6) {
6558                                         struct sockaddr_in6 *sin6;
6559
6560                                         sin6 = (struct sockaddr_in6 *)addr;
6561                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6562                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6563                                                 SCTP_TCB_UNLOCK(stcb);
6564                                                 error = EINVAL;
6565                                                 break;
6566                                         }
6567                                 } else
6568 #endif
6569                                 {
6570                                         error = EAFNOSUPPORT;
6571                                         SCTP_TCB_UNLOCK(stcb);
6572                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6573                                         break;
6574                                 }
6575                         }
6576
6577                         if (stcb != NULL) {
6578                                 if (net != NULL) {
6579                                         net->port = encaps->sue_port;
6580                                 } else {
6581                                         stcb->asoc.port = encaps->sue_port;
6582                                 }
6583                                 SCTP_TCB_UNLOCK(stcb);
6584                         } else {
6585                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6586                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6587                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6588                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6589                                         SCTP_INP_WLOCK(inp);
6590                                         inp->sctp_ep.port = encaps->sue_port;
6591                                         SCTP_INP_WUNLOCK(inp);
6592                                 } else {
6593                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6594                                         error = EINVAL;
6595                                 }
6596                         }
6597                         break;
6598                 }
6599         case SCTP_ECN_SUPPORTED:
6600                 {
6601                         struct sctp_assoc_value *av;
6602
6603                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6604                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6605
6606                         if (stcb) {
6607                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6608                                 error = EINVAL;
6609                                 SCTP_TCB_UNLOCK(stcb);
6610                         } else {
6611                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6612                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6613                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6614                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6615                                         SCTP_INP_WLOCK(inp);
6616                                         if (av->assoc_value == 0) {
6617                                                 inp->ecn_supported = 0;
6618                                         } else {
6619                                                 inp->ecn_supported = 1;
6620                                         }
6621                                         SCTP_INP_WUNLOCK(inp);
6622                                 } else {
6623                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6624                                         error = EINVAL;
6625                                 }
6626                         }
6627                         break;
6628                 }
6629         case SCTP_PR_SUPPORTED:
6630                 {
6631                         struct sctp_assoc_value *av;
6632
6633                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6634                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6635
6636                         if (stcb) {
6637                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6638                                 error = EINVAL;
6639                                 SCTP_TCB_UNLOCK(stcb);
6640                         } else {
6641                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6642                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6643                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6644                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6645                                         SCTP_INP_WLOCK(inp);
6646                                         if (av->assoc_value == 0) {
6647                                                 inp->prsctp_supported = 0;
6648                                         } else {
6649                                                 inp->prsctp_supported = 1;
6650                                         }
6651                                         SCTP_INP_WUNLOCK(inp);
6652                                 } else {
6653                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6654                                         error = EINVAL;
6655                                 }
6656                         }
6657                         break;
6658                 }
6659         case SCTP_AUTH_SUPPORTED:
6660                 {
6661                         struct sctp_assoc_value *av;
6662
6663                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6664                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6665
6666                         if (stcb) {
6667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6668                                 error = EINVAL;
6669                                 SCTP_TCB_UNLOCK(stcb);
6670                         } else {
6671                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6672                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6673                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6674                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6675                                         if ((av->assoc_value == 0) &&
6676                                             (inp->asconf_supported == 1)) {
6677                                                 /*
6678                                                  * AUTH is required for
6679                                                  * ASCONF
6680                                                  */
6681                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6682                                                 error = EINVAL;
6683                                         } else {
6684                                                 SCTP_INP_WLOCK(inp);
6685                                                 if (av->assoc_value == 0) {
6686                                                         inp->auth_supported = 0;
6687                                                 } else {
6688                                                         inp->auth_supported = 1;
6689                                                 }
6690                                                 SCTP_INP_WUNLOCK(inp);
6691                                         }
6692                                 } else {
6693                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6694                                         error = EINVAL;
6695                                 }
6696                         }
6697                         break;
6698                 }
6699         case SCTP_ASCONF_SUPPORTED:
6700                 {
6701                         struct sctp_assoc_value *av;
6702
6703                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6704                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6705
6706                         if (stcb) {
6707                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6708                                 error = EINVAL;
6709                                 SCTP_TCB_UNLOCK(stcb);
6710                         } else {
6711                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6712                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6713                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6714                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6715                                         if ((av->assoc_value != 0) &&
6716                                             (inp->auth_supported == 0)) {
6717                                                 /*
6718                                                  * AUTH is required for
6719                                                  * ASCONF
6720                                                  */
6721                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6722                                                 error = EINVAL;
6723                                         } else {
6724                                                 SCTP_INP_WLOCK(inp);
6725                                                 if (av->assoc_value == 0) {
6726                                                         inp->asconf_supported = 0;
6727                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6728                                                             inp->sctp_ep.local_auth_chunks);
6729                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6730                                                             inp->sctp_ep.local_auth_chunks);
6731                                                 } else {
6732                                                         inp->asconf_supported = 1;
6733                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6734                                                             inp->sctp_ep.local_auth_chunks);
6735                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6736                                                             inp->sctp_ep.local_auth_chunks);
6737                                                 }
6738                                                 SCTP_INP_WUNLOCK(inp);
6739                                         }
6740                                 } else {
6741                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6742                                         error = EINVAL;
6743                                 }
6744                         }
6745                         break;
6746                 }
6747         case SCTP_RECONFIG_SUPPORTED:
6748                 {
6749                         struct sctp_assoc_value *av;
6750
6751                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6752                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6753
6754                         if (stcb) {
6755                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6756                                 error = EINVAL;
6757                                 SCTP_TCB_UNLOCK(stcb);
6758                         } else {
6759                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6760                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6761                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6762                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6763                                         SCTP_INP_WLOCK(inp);
6764                                         if (av->assoc_value == 0) {
6765                                                 inp->reconfig_supported = 0;
6766                                         } else {
6767                                                 inp->reconfig_supported = 1;
6768                                         }
6769                                         SCTP_INP_WUNLOCK(inp);
6770                                 } else {
6771                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6772                                         error = EINVAL;
6773                                 }
6774                         }
6775                         break;
6776                 }
6777         case SCTP_NRSACK_SUPPORTED:
6778                 {
6779                         struct sctp_assoc_value *av;
6780
6781                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6782                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6783
6784                         if (stcb) {
6785                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6786                                 error = EINVAL;
6787                                 SCTP_TCB_UNLOCK(stcb);
6788                         } else {
6789                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6790                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6791                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6792                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6793                                         SCTP_INP_WLOCK(inp);
6794                                         if (av->assoc_value == 0) {
6795                                                 inp->nrsack_supported = 0;
6796                                         } else {
6797                                                 inp->nrsack_supported = 1;
6798                                         }
6799                                         SCTP_INP_WUNLOCK(inp);
6800                                 } else {
6801                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6802                                         error = EINVAL;
6803                                 }
6804                         }
6805                         break;
6806                 }
6807         case SCTP_PKTDROP_SUPPORTED:
6808                 {
6809                         struct sctp_assoc_value *av;
6810
6811                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6812                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6813
6814                         if (stcb) {
6815                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6816                                 error = EINVAL;
6817                                 SCTP_TCB_UNLOCK(stcb);
6818                         } else {
6819                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6820                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6821                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6822                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6823                                         SCTP_INP_WLOCK(inp);
6824                                         if (av->assoc_value == 0) {
6825                                                 inp->pktdrop_supported = 0;
6826                                         } else {
6827                                                 inp->pktdrop_supported = 1;
6828                                         }
6829                                         SCTP_INP_WUNLOCK(inp);
6830                                 } else {
6831                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6832                                         error = EINVAL;
6833                                 }
6834                         }
6835                         break;
6836                 }
6837         case SCTP_MAX_CWND:
6838                 {
6839                         struct sctp_assoc_value *av;
6840                         struct sctp_nets *net;
6841
6842                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6843                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6844
6845                         if (stcb) {
6846                                 stcb->asoc.max_cwnd = av->assoc_value;
6847                                 if (stcb->asoc.max_cwnd > 0) {
6848                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6849                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6850                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6851                                                         net->cwnd = stcb->asoc.max_cwnd;
6852                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6853                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6854                                                         }
6855                                                 }
6856                                         }
6857                                 }
6858                                 SCTP_TCB_UNLOCK(stcb);
6859                         } else {
6860                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6861                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6862                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6863                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6864                                         SCTP_INP_WLOCK(inp);
6865                                         inp->max_cwnd = av->assoc_value;
6866                                         SCTP_INP_WUNLOCK(inp);
6867                                 } else {
6868                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6869                                         error = EINVAL;
6870                                 }
6871                         }
6872                         break;
6873                 }
6874         default:
6875                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6876                 error = ENOPROTOOPT;
6877                 break;
6878         }                       /* end switch (opt) */
6879         return (error);
6880 }
6881
6882 int
6883 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6884 {
6885         struct epoch_tracker et;
6886         struct sctp_inpcb *inp;
6887         void *optval = NULL;
6888         void *p;
6889         size_t optsize = 0;
6890         int error = 0;
6891
6892         if ((sopt->sopt_level == SOL_SOCKET) &&
6893             (sopt->sopt_name == SO_SETFIB)) {
6894                 inp = (struct sctp_inpcb *)so->so_pcb;
6895                 if (inp == NULL) {
6896                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6897                         return (EINVAL);
6898                 }
6899                 SCTP_INP_WLOCK(inp);
6900                 inp->fibnum = so->so_fibnum;
6901                 SCTP_INP_WUNLOCK(inp);
6902                 return (0);
6903         }
6904         if (sopt->sopt_level != IPPROTO_SCTP) {
6905                 /* wrong proto level... send back up to IP */
6906 #ifdef INET6
6907                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6908                         error = ip6_ctloutput(so, sopt);
6909 #endif                          /* INET6 */
6910 #if defined(INET) && defined(INET6)
6911                 else
6912 #endif
6913 #ifdef INET
6914                         error = ip_ctloutput(so, sopt);
6915 #endif
6916                 return (error);
6917         }
6918         optsize = sopt->sopt_valsize;
6919         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6920                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6921                 return (ENOBUFS);
6922         }
6923         if (optsize) {
6924                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6925                 if (optval == NULL) {
6926                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6927                         return (ENOBUFS);
6928                 }
6929                 error = sooptcopyin(sopt, optval, optsize, optsize);
6930                 if (error) {
6931                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6932                         goto out;
6933                 }
6934         }
6935         p = (void *)sopt->sopt_td;
6936         if (sopt->sopt_dir == SOPT_SET) {
6937                 NET_EPOCH_ENTER(et);
6938                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6939                 NET_EPOCH_EXIT(et);
6940         } else if (sopt->sopt_dir == SOPT_GET) {
6941                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6942         } else {
6943                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6944                 error = EINVAL;
6945         }
6946         if ((error == 0) && (optval != NULL)) {
6947                 error = sooptcopyout(sopt, optval, optsize);
6948                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6949         } else if (optval != NULL) {
6950                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6951         }
6952 out:
6953         return (error);
6954 }
6955
6956 #ifdef INET
6957 static int
6958 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6959 {
6960         struct epoch_tracker et;
6961         int error = 0;
6962         int create_lock_on = 0;
6963         uint32_t vrf_id;
6964         struct sctp_inpcb *inp;
6965         struct sctp_tcb *stcb = NULL;
6966
6967         inp = (struct sctp_inpcb *)so->so_pcb;
6968         if (inp == NULL) {
6969                 /* I made the same as TCP since we are not setup? */
6970                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6971                 return (ECONNRESET);
6972         }
6973         if (addr == NULL) {
6974                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6975                 return EINVAL;
6976         }
6977
6978         switch (addr->sa_family) {
6979 #ifdef INET6
6980         case AF_INET6:
6981                 {
6982                         struct sockaddr_in6 *sin6;
6983
6984                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6985                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6986                                 return (EINVAL);
6987                         }
6988                         sin6 = (struct sockaddr_in6 *)addr;
6989                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
6990                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6991                                 return (error);
6992                         }
6993                         break;
6994                 }
6995 #endif
6996 #ifdef INET
6997         case AF_INET:
6998                 {
6999                         struct sockaddr_in *sin;
7000
7001                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
7002                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7003                                 return (EINVAL);
7004                         }
7005                         sin = (struct sockaddr_in *)addr;
7006                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
7007                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7008                                 return (error);
7009                         }
7010                         break;
7011                 }
7012 #endif
7013         default:
7014                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
7015                 return (EAFNOSUPPORT);
7016         }
7017         SCTP_INP_INCR_REF(inp);
7018         SCTP_ASOC_CREATE_LOCK(inp);
7019         create_lock_on = 1;
7020         NET_EPOCH_ENTER(et);
7021
7022         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7023             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7024                 /* Should I really unlock ? */
7025                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7026                 error = EFAULT;
7027                 goto out_now;
7028         }
7029 #ifdef INET6
7030         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7031             (addr->sa_family == AF_INET6)) {
7032                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7033                 error = EINVAL;
7034                 goto out_now;
7035         }
7036 #endif
7037         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
7038             SCTP_PCB_FLAGS_UNBOUND) {
7039                 /* Bind a ephemeral port */
7040                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7041                 if (error) {
7042                         goto out_now;
7043                 }
7044         }
7045         /* Now do we connect? */
7046         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7047             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7048                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7049                 error = EINVAL;
7050                 goto out_now;
7051         }
7052         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7053             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7054                 /* We are already connected AND the TCP model */
7055                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7056                 error = EADDRINUSE;
7057                 goto out_now;
7058         }
7059         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7060                 SCTP_INP_RLOCK(inp);
7061                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7062                 SCTP_INP_RUNLOCK(inp);
7063         } else {
7064                 /*
7065                  * We increment here since sctp_findassociation_ep_addr()
7066                  * will do a decrement if it finds the stcb as long as the
7067                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7068                  */
7069                 SCTP_INP_INCR_REF(inp);
7070                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7071                 if (stcb == NULL) {
7072                         SCTP_INP_DECR_REF(inp);
7073                 } else {
7074                         SCTP_TCB_UNLOCK(stcb);
7075                 }
7076         }
7077         if (stcb != NULL) {
7078                 /* Already have or am bring up an association */
7079                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7080                 error = EALREADY;
7081                 goto out_now;
7082         }
7083
7084         vrf_id = inp->def_vrf_id;
7085         /* We are GOOD to go */
7086         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id,
7087             inp->sctp_ep.pre_open_stream_count,
7088             inp->sctp_ep.port, p,
7089             SCTP_INITIALIZE_AUTH_PARAMS);
7090         if (stcb == NULL) {
7091                 /* Gak! no memory */
7092                 goto out_now;
7093         }
7094         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
7095                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
7096                 /* Set the connected flag so we can queue data */
7097                 soisconnecting(so);
7098         }
7099         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7100         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7101
7102         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7103         SCTP_TCB_UNLOCK(stcb);
7104 out_now:
7105         NET_EPOCH_EXIT(et);
7106         if (create_lock_on) {
7107                 SCTP_ASOC_CREATE_UNLOCK(inp);
7108         }
7109         SCTP_INP_DECR_REF(inp);
7110         return (error);
7111 }
7112 #endif
7113
7114 int
7115 sctp_listen(struct socket *so, int backlog, struct thread *p)
7116 {
7117         /*
7118          * Note this module depends on the protocol processing being called
7119          * AFTER any socket level flags and backlog are applied to the
7120          * socket. The traditional way that the socket flags are applied is
7121          * AFTER protocol processing. We have made a change to the
7122          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7123          * place if the socket API for SCTP is to work properly.
7124          */
7125
7126         int error = 0;
7127         struct sctp_inpcb *inp;
7128
7129         inp = (struct sctp_inpcb *)so->so_pcb;
7130         if (inp == NULL) {
7131                 /* I made the same as TCP since we are not setup? */
7132                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7133                 return (ECONNRESET);
7134         }
7135         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7136                 /* See if we have a listener */
7137                 struct sctp_inpcb *tinp;
7138                 union sctp_sockstore store;
7139
7140                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7141                         /* not bound all */
7142                         struct sctp_laddr *laddr;
7143
7144                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7145                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7146                                 switch (store.sa.sa_family) {
7147 #ifdef INET
7148                                 case AF_INET:
7149                                         store.sin.sin_port = inp->sctp_lport;
7150                                         break;
7151 #endif
7152 #ifdef INET6
7153                                 case AF_INET6:
7154                                         store.sin6.sin6_port = inp->sctp_lport;
7155                                         break;
7156 #endif
7157                                 default:
7158                                         break;
7159                                 }
7160                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7161                                 if (tinp && (tinp != inp) &&
7162                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7163                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7164                                     (SCTP_IS_LISTENING(tinp))) {
7165                                         /*
7166                                          * we have a listener already and
7167                                          * its not this inp.
7168                                          */
7169                                         SCTP_INP_DECR_REF(tinp);
7170                                         return (EADDRINUSE);
7171                                 } else if (tinp) {
7172                                         SCTP_INP_DECR_REF(tinp);
7173                                 }
7174                         }
7175                 } else {
7176                         /* Setup a local addr bound all */
7177                         memset(&store, 0, sizeof(store));
7178 #ifdef INET6
7179                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7180                                 store.sa.sa_family = AF_INET6;
7181                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7182                         }
7183 #endif
7184 #ifdef INET
7185                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7186                                 store.sa.sa_family = AF_INET;
7187                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7188                         }
7189 #endif
7190                         switch (store.sa.sa_family) {
7191 #ifdef INET
7192                         case AF_INET:
7193                                 store.sin.sin_port = inp->sctp_lport;
7194                                 break;
7195 #endif
7196 #ifdef INET6
7197                         case AF_INET6:
7198                                 store.sin6.sin6_port = inp->sctp_lport;
7199                                 break;
7200 #endif
7201                         default:
7202                                 break;
7203                         }
7204                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7205                         if (tinp && (tinp != inp) &&
7206                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7207                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7208                             (SCTP_IS_LISTENING(tinp))) {
7209                                 /*
7210                                  * we have a listener already and its not
7211                                  * this inp.
7212                                  */
7213                                 SCTP_INP_DECR_REF(tinp);
7214                                 return (EADDRINUSE);
7215                         } else if (tinp) {
7216                                 SCTP_INP_DECR_REF(tinp);
7217                         }
7218                 }
7219         }
7220         SCTP_INP_RLOCK(inp);
7221 #ifdef SCTP_LOCK_LOGGING
7222         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7223                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7224         }
7225 #endif
7226         SOCK_LOCK(so);
7227         error = solisten_proto_check(so);
7228         SOCK_UNLOCK(so);
7229         if (error) {
7230                 SCTP_INP_RUNLOCK(inp);
7231                 return (error);
7232         }
7233         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7234             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7235                 /*
7236                  * The unlucky case - We are in the tcp pool with this guy.
7237                  * - Someone else is in the main inp slot. - We must move
7238                  * this guy (the listener) to the main slot - We must then
7239                  * move the guy that was listener to the TCP Pool.
7240                  */
7241                 if (sctp_swap_inpcb_for_listen(inp)) {
7242                         SCTP_INP_RUNLOCK(inp);
7243                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7244                         return (EADDRINUSE);
7245                 }
7246         }
7247
7248         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7249             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7250                 /* We are already connected AND the TCP model */
7251                 SCTP_INP_RUNLOCK(inp);
7252                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7253                 return (EADDRINUSE);
7254         }
7255         SCTP_INP_RUNLOCK(inp);
7256         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7257                 /* We must do a bind. */
7258                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7259                         /* bind error, probably perm */
7260                         return (error);
7261                 }
7262         }
7263         SCTP_INP_WLOCK(inp);
7264         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7265                 SOCK_LOCK(so);
7266                 solisten_proto(so, backlog);
7267                 SOCK_UNLOCK(so);
7268         }
7269         if (backlog > 0) {
7270                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7271         } else {
7272                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7273         }
7274         SCTP_INP_WUNLOCK(inp);
7275         return (error);
7276 }
7277
7278 static int sctp_defered_wakeup_cnt = 0;
7279
7280 int
7281 sctp_accept(struct socket *so, struct sockaddr **addr)
7282 {
7283         struct sctp_tcb *stcb;
7284         struct sctp_inpcb *inp;
7285         union sctp_sockstore store;
7286 #ifdef INET6
7287         int error;
7288 #endif
7289         inp = (struct sctp_inpcb *)so->so_pcb;
7290
7291         if (inp == NULL) {
7292                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7293                 return (ECONNRESET);
7294         }
7295         SCTP_INP_WLOCK(inp);
7296         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7297                 SCTP_INP_WUNLOCK(inp);
7298                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7299                 return (EOPNOTSUPP);
7300         }
7301         if (so->so_state & SS_ISDISCONNECTED) {
7302                 SCTP_INP_WUNLOCK(inp);
7303                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7304                 return (ECONNABORTED);
7305         }
7306         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7307         if (stcb == NULL) {
7308                 SCTP_INP_WUNLOCK(inp);
7309                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7310                 return (ECONNRESET);
7311         }
7312         SCTP_TCB_LOCK(stcb);
7313         store = stcb->asoc.primary_destination->ro._l_addr;
7314         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7315         /* Wake any delayed sleep action */
7316         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7317                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7318                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7319                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7320                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7321                         if (sowriteable(inp->sctp_socket)) {
7322                                 sowwakeup_locked(inp->sctp_socket);
7323                         } else {
7324                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7325                         }
7326                 }
7327                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7328                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7329                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7330                         if (soreadable(inp->sctp_socket)) {
7331                                 sctp_defered_wakeup_cnt++;
7332                                 sorwakeup_locked(inp->sctp_socket);
7333                         } else {
7334                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7335                         }
7336                 }
7337         }
7338         SCTP_INP_WUNLOCK(inp);
7339         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7340                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7341                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7342         } else {
7343                 SCTP_TCB_UNLOCK(stcb);
7344         }
7345         switch (store.sa.sa_family) {
7346 #ifdef INET
7347         case AF_INET:
7348                 {
7349                         struct sockaddr_in *sin;
7350
7351                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7352                         if (sin == NULL)
7353                                 return (ENOMEM);
7354                         sin->sin_family = AF_INET;
7355                         sin->sin_len = sizeof(*sin);
7356                         sin->sin_port = store.sin.sin_port;
7357                         sin->sin_addr = store.sin.sin_addr;
7358                         *addr = (struct sockaddr *)sin;
7359                         break;
7360                 }
7361 #endif
7362 #ifdef INET6
7363         case AF_INET6:
7364                 {
7365                         struct sockaddr_in6 *sin6;
7366
7367                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7368                         if (sin6 == NULL)
7369                                 return (ENOMEM);
7370                         sin6->sin6_family = AF_INET6;
7371                         sin6->sin6_len = sizeof(*sin6);
7372                         sin6->sin6_port = store.sin6.sin6_port;
7373                         sin6->sin6_addr = store.sin6.sin6_addr;
7374                         if ((error = sa6_recoverscope(sin6)) != 0) {
7375                                 SCTP_FREE_SONAME(sin6);
7376                                 return (error);
7377                         }
7378                         *addr = (struct sockaddr *)sin6;
7379                         break;
7380                 }
7381 #endif
7382         default:
7383                 /* TSNH */
7384                 break;
7385         }
7386         return (0);
7387 }
7388
7389 #ifdef INET
7390 int
7391 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7392 {
7393         struct sockaddr_in *sin;
7394         uint32_t vrf_id;
7395         struct sctp_inpcb *inp;
7396         struct sctp_ifa *sctp_ifa;
7397
7398         /*
7399          * Do the malloc first in case it blocks.
7400          */
7401         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7402         if (sin == NULL)
7403                 return (ENOMEM);
7404         sin->sin_family = AF_INET;
7405         sin->sin_len = sizeof(*sin);
7406         inp = (struct sctp_inpcb *)so->so_pcb;
7407         if (!inp) {
7408                 SCTP_FREE_SONAME(sin);
7409                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7410                 return (ECONNRESET);
7411         }
7412         SCTP_INP_RLOCK(inp);
7413         sin->sin_port = inp->sctp_lport;
7414         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7415                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7416                         struct sctp_tcb *stcb;
7417                         struct sockaddr_in *sin_a;
7418                         struct sctp_nets *net;
7419                         int fnd;
7420
7421                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7422                         if (stcb == NULL) {
7423                                 goto notConn;
7424                         }
7425                         fnd = 0;
7426                         sin_a = NULL;
7427                         SCTP_TCB_LOCK(stcb);
7428                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7429                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7430                                 if (sin_a == NULL)
7431                                         /* this will make coverity happy */
7432                                         continue;
7433
7434                                 if (sin_a->sin_family == AF_INET) {
7435                                         fnd = 1;
7436                                         break;
7437                                 }
7438                         }
7439                         if ((!fnd) || (sin_a == NULL)) {
7440                                 /* punt */
7441                                 SCTP_TCB_UNLOCK(stcb);
7442                                 goto notConn;
7443                         }
7444
7445                         vrf_id = inp->def_vrf_id;
7446                         sctp_ifa = sctp_source_address_selection(inp,
7447                             stcb,
7448                             (sctp_route_t *)&net->ro,
7449                             net, 0, vrf_id);
7450                         if (sctp_ifa) {
7451                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7452                                 sctp_free_ifa(sctp_ifa);
7453                         }
7454                         SCTP_TCB_UNLOCK(stcb);
7455                 } else {
7456                         /* For the bound all case you get back 0 */
7457         notConn:
7458                         sin->sin_addr.s_addr = 0;
7459                 }
7460
7461         } else {
7462                 /* Take the first IPv4 address in the list */
7463                 struct sctp_laddr *laddr;
7464                 int fnd = 0;
7465
7466                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7467                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7468                                 struct sockaddr_in *sin_a;
7469
7470                                 sin_a = &laddr->ifa->address.sin;
7471                                 sin->sin_addr = sin_a->sin_addr;
7472                                 fnd = 1;
7473                                 break;
7474                         }
7475                 }
7476                 if (!fnd) {
7477                         SCTP_FREE_SONAME(sin);
7478                         SCTP_INP_RUNLOCK(inp);
7479                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7480                         return (ENOENT);
7481                 }
7482         }
7483         SCTP_INP_RUNLOCK(inp);
7484         (*addr) = (struct sockaddr *)sin;
7485         return (0);
7486 }
7487
7488 int
7489 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7490 {
7491         struct sockaddr_in *sin;
7492         int fnd;
7493         struct sockaddr_in *sin_a;
7494         struct sctp_inpcb *inp;
7495         struct sctp_tcb *stcb;
7496         struct sctp_nets *net;
7497
7498         /* Do the malloc first in case it blocks. */
7499         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7500         if (sin == NULL)
7501                 return (ENOMEM);
7502         sin->sin_family = AF_INET;
7503         sin->sin_len = sizeof(*sin);
7504
7505         inp = (struct sctp_inpcb *)so->so_pcb;
7506         if ((inp == NULL) ||
7507             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7508                 /* UDP type and listeners will drop out here */
7509                 SCTP_FREE_SONAME(sin);
7510                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7511                 return (ENOTCONN);
7512         }
7513         SCTP_INP_RLOCK(inp);
7514         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7515         if (stcb) {
7516                 SCTP_TCB_LOCK(stcb);
7517         }
7518         SCTP_INP_RUNLOCK(inp);
7519         if (stcb == NULL) {
7520                 SCTP_FREE_SONAME(sin);
7521                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7522                 return (ECONNRESET);
7523         }
7524         fnd = 0;
7525         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7526                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7527                 if (sin_a->sin_family == AF_INET) {
7528                         fnd = 1;
7529                         sin->sin_port = stcb->rport;
7530                         sin->sin_addr = sin_a->sin_addr;
7531                         break;
7532                 }
7533         }
7534         SCTP_TCB_UNLOCK(stcb);
7535         if (!fnd) {
7536                 /* No IPv4 address */
7537                 SCTP_FREE_SONAME(sin);
7538                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7539                 return (ENOENT);
7540         }
7541         (*addr) = (struct sockaddr *)sin;
7542         return (0);
7543 }
7544
7545 struct pr_usrreqs sctp_usrreqs = {
7546         .pru_abort = sctp_abort,
7547         .pru_accept = sctp_accept,
7548         .pru_attach = sctp_attach,
7549         .pru_bind = sctp_bind,
7550         .pru_connect = sctp_connect,
7551         .pru_control = in_control,
7552         .pru_close = sctp_close,
7553         .pru_detach = sctp_close,
7554         .pru_sopoll = sopoll_generic,
7555         .pru_flush = sctp_flush,
7556         .pru_disconnect = sctp_disconnect,
7557         .pru_listen = sctp_listen,
7558         .pru_peeraddr = sctp_peeraddr,
7559         .pru_send = sctp_sendm,
7560         .pru_shutdown = sctp_shutdown,
7561         .pru_sockaddr = sctp_ingetaddr,
7562         .pru_sosend = sctp_sosend,
7563         .pru_soreceive = sctp_soreceive
7564 };
7565 #endif