sys/netinet/sctp_usrreq.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include <netinet/sctp_os.h>
  39 #include <sys/proc.h>
  40 #include <netinet/sctp_pcb.h>
  41 #include <netinet/sctp_header.h>
  42 #include <netinet/sctp_var.h>
  43 #ifdef INET6
  44 #include <netinet6/sctp6_var.h>
  45 #endif
  46 #include <netinet/sctp_sysctl.h>
  47 #include <netinet/sctp_output.h>
  48 #include <netinet/sctp_uio.h>
  49 #include <netinet/sctp_asconf.h>
  50 #include <netinet/sctputil.h>
  51 #include <netinet/sctp_indata.h>
  52 #include <netinet/sctp_timer.h>
  53 #include <netinet/sctp_auth.h>
  54 #include <netinet/sctp_bsd_addr.h>
  55 #include <netinet/udp.h>
  56 #include <sys/eventhandler.h>
  57
  58 extern const struct sctp_cc_functions sctp_cc_functions[];
  59 extern const struct sctp_ss_functions sctp_ss_functions[];
  60
  61 static void
  62 sctp_init(void *arg SCTP_UNUSED)
  63 {
  64         u_long sb_max_adj;
  65
  66         /* Initialize and modify the sysctled variables */
  67         sctp_init_sysctls();
  68         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  69                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  70         /*
  71          * Allow a user to take no more than 1/2 the number of clusters or
  72          * the SB_MAX, whichever is smaller, for the send window.
  73          */
  74         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  75         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  76             (((uint32_t)nmbclusters / 2) * MCLBYTES));
  77         /*
  78          * Now for the recv window, should we take the same amount? or
  79          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  80          * now I will just copy.
  81          */
  82         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  83         SCTP_BASE_VAR(first_time) = 0;
  84         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  85         sctp_pcb_init();
  86 #if defined(SCTP_PACKET_LOGGING)
  87         SCTP_BASE_VAR(packet_log_writers) = 0;
  88         SCTP_BASE_VAR(packet_log_end) = 0;
  89         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  90 #endif
  91         SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
  92             sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
  93 }
  94
  95 VNET_SYSINIT(sctp_init, SI_SUB_PROTO_DOMAIN, SI_ORDER_THIRD, sctp_init, NULL);
  96
  97 #ifdef VIMAGE
  98 static void
  99 sctp_finish(void *unused __unused)
 100 {
 101         EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
 102         sctp_pcb_finish();
 103 }
 104
 105 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 106 #endif
 107
 108 void
 109 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint32_t mtu, bool resend)
 110 {
 111         struct sctp_association *asoc;
 112         struct sctp_tmit_chunk *chk;
 113         uint32_t overhead;
 114
 115         asoc = &stcb->asoc;
 116         KASSERT(mtu < asoc->smallest_mtu,
 117             ("Currently only reducing association MTU %u supported (MTU %u)",
 118             asoc->smallest_mtu, mtu));
 119         asoc->smallest_mtu = mtu;
 120         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 121                 overhead = SCTP_MIN_OVERHEAD;
 122         } else {
 123                 overhead = SCTP_MIN_V4_OVERHEAD;
 124         }
 125         if (asoc->idata_supported) {
 126                 if (sctp_auth_is_required_chunk(SCTP_IDATA, asoc->peer_auth_chunks)) {
 127                         overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
 128                 }
 129         } else {
 130                 if (sctp_auth_is_required_chunk(SCTP_DATA, asoc->peer_auth_chunks)) {
 131                         overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
 132                 }
 133         }
 134         KASSERT(overhead % 4 == 0,
 135             ("overhead (%u) not a multiple of 4", overhead));
 136         TAILQ_FOREACH(chk, &asoc->send_queue, sctp_next) {
 137                 if (((uint32_t)chk->send_size + overhead) > mtu) {
 138                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 139                 }
 140         }
 141         TAILQ_FOREACH(chk, &asoc->sent_queue, sctp_next) {
 142                 if (((uint32_t)chk->send_size + overhead) > mtu) {
 143                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 144                         if (resend && chk->sent < SCTP_DATAGRAM_RESEND) {
 145                                 /*
 146                                  * If requested, mark the chunk for
 147                                  * immediate resend, since we sent it being
 148                                  * too big.
 149                                  */
 150                                 sctp_flight_size_decrease(chk);
 151                                 sctp_total_flight_decrease(stcb, chk);
 152                                 chk->sent = SCTP_DATAGRAM_RESEND;
 153                                 sctp_ucount_incr(asoc->sent_queue_retran_cnt);
 154                                 chk->rec.data.doing_fast_retransmit = 0;
 155                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 156                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 157                                             chk->whoTo->flight_size,
 158                                             chk->book_size,
 159                                             (uint32_t)(uintptr_t)chk->whoTo,
 160                                             chk->rec.data.tsn);
 161                                 }
 162                                 /* Clear any time, so NO RTT is being done. */
 163                                 if (chk->do_rtt == 1) {
 164                                         chk->do_rtt = 0;
 165                                         chk->whoTo->rto_needed = 1;
 166                                 }
 167                         }
 168                 }
 169         }
 170 }
 171
 172 #ifdef INET
 173 void
 174 sctp_notify(struct sctp_inpcb *inp,
 175     struct sctp_tcb *stcb,
 176     struct sctp_nets *net,
 177     uint8_t icmp_type,
 178     uint8_t icmp_code,
 179     uint16_t ip_len,
 180     uint32_t next_mtu)
 181 {
 182         int timer_stopped;
 183
 184         if (icmp_type != ICMP_UNREACH) {
 185                 /* We only care about unreachable */
 186                 SCTP_TCB_UNLOCK(stcb);
 187                 return;
 188         }
 189         if ((icmp_code == ICMP_UNREACH_NET) ||
 190             (icmp_code == ICMP_UNREACH_HOST) ||
 191             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 192             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 193             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 194             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 195             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 196             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 197                 /* Mark the net unreachable. */
 198                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 199                         /* OK, that destination is NOT reachable. */
 200                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 201                         net->dest_state &= ~SCTP_ADDR_PF;
 202                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 203                             stcb, 0,
 204                             (void *)net, SCTP_SO_NOT_LOCKED);
 205                 }
 206                 SCTP_TCB_UNLOCK(stcb);
 207         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 208             (icmp_code == ICMP_UNREACH_PORT)) {
 209                 /* Treat it like an ABORT. */
 210                 sctp_abort_notification(stcb, true, false, 0, NULL, SCTP_SO_NOT_LOCKED);
 211                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 212                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 213                 /* no need to unlock here, since the TCB is gone */
 214         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 215                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 216                         SCTP_TCB_UNLOCK(stcb);
 217                         return;
 218                 }
 219                 /* Find the next (smaller) MTU */
 220                 if (next_mtu == 0) {
 221                         /*
 222                          * Old type router that does not tell us what the
 223                          * next MTU is. Rats we will have to guess (in a
 224                          * educated fashion of course).
 225                          */
 226                         next_mtu = sctp_get_prev_mtu(ip_len);
 227                 }
 228                 /* Stop the PMTU timer. */
 229                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 230                         timer_stopped = 1;
 231                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 232                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 233                 } else {
 234                         timer_stopped = 0;
 235                 }
 236                 /* Update the path MTU. */
 237                 if (net->port) {
 238                         next_mtu -= sizeof(struct udphdr);
 239                 }
 240                 if (net->mtu > next_mtu) {
 241                         net->mtu = next_mtu;
 242                         if (net->port) {
 243                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 244                         } else {
 245                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 246                         }
 247                 }
 248                 /* Update the association MTU */
 249                 if (stcb->asoc.smallest_mtu > next_mtu) {
 250                         sctp_pathmtu_adjustment(stcb, next_mtu, true);
 251                 }
 252                 /* Finally, start the PMTU timer if it was running before. */
 253                 if (timer_stopped) {
 254                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 255                 }
 256                 SCTP_TCB_UNLOCK(stcb);
 257         } else {
 258                 SCTP_TCB_UNLOCK(stcb);
 259         }
 260 }
 261
 262 void
 263 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 264 {
 265         struct ip *outer_ip;
 266         struct ip *inner_ip;
 267         struct sctphdr *sh;
 268         struct icmp *icmp;
 269         struct sctp_inpcb *inp;
 270         struct sctp_tcb *stcb;
 271         struct sctp_nets *net;
 272         struct sctp_init_chunk *ch;
 273         struct sockaddr_in src, dst;
 274
 275         if (sa->sa_family != AF_INET ||
 276             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 277                 return;
 278         }
 279         if (PRC_IS_REDIRECT(cmd)) {
 280                 vip = NULL;
 281         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 282                 return;
 283         }
 284         if (vip != NULL) {
 285                 inner_ip = (struct ip *)vip;
 286                 icmp = (struct icmp *)((caddr_t)inner_ip -
 287                     (sizeof(struct icmp) - sizeof(struct ip)));
 288                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 289                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 290                 memset(&src, 0, sizeof(struct sockaddr_in));
 291                 src.sin_family = AF_INET;
 292                 src.sin_len = sizeof(struct sockaddr_in);
 293                 src.sin_port = sh->src_port;
 294                 src.sin_addr = inner_ip->ip_src;
 295                 memset(&dst, 0, sizeof(struct sockaddr_in));
 296                 dst.sin_family = AF_INET;
 297                 dst.sin_len = sizeof(struct sockaddr_in);
 298                 dst.sin_port = sh->dest_port;
 299                 dst.sin_addr = inner_ip->ip_dst;
 300                 /*
 301                  * 'dst' holds the dest of the packet that failed to be
 302                  * sent. 'src' holds our local endpoint address. Thus we
 303                  * reverse the dst and the src in the lookup.
 304                  */
 305                 inp = NULL;
 306                 net = NULL;
 307                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 308                     (struct sockaddr *)&src,
 309                     &inp, &net, 1,
 310                     SCTP_DEFAULT_VRFID);
 311                 if ((stcb != NULL) &&
 312                     (net != NULL) &&
 313                     (inp != NULL)) {
 314                         /* Check the verification tag */
 315                         if (ntohl(sh->v_tag) != 0) {
 316                                 /*
 317                                  * This must be the verification tag used
 318                                  * for sending out packets. We don't
 319                                  * consider packets reflecting the
 320                                  * verification tag.
 321                                  */
 322                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 323                                         SCTP_TCB_UNLOCK(stcb);
 324                                         return;
 325                                 }
 326                         } else {
 327                                 if (ntohs(outer_ip->ip_len) >=
 328                                     sizeof(struct ip) +
 329                                     8 + (inner_ip->ip_hl << 2) + 20) {
 330                                         /*
 331                                          * In this case we can check if we
 332                                          * got an INIT chunk and if the
 333                                          * initiate tag matches.
 334                                          */
 335                                         ch = (struct sctp_init_chunk *)(sh + 1);
 336                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 337                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 338                                                 SCTP_TCB_UNLOCK(stcb);
 339                                                 return;
 340                                         }
 341                                 } else {
 342                                         SCTP_TCB_UNLOCK(stcb);
 343                                         return;
 344                                 }
 345                         }
 346                         sctp_notify(inp, stcb, net,
 347                             icmp->icmp_type,
 348                             icmp->icmp_code,
 349                             ntohs(inner_ip->ip_len),
 350                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 351                 } else {
 352                         if ((stcb == NULL) && (inp != NULL)) {
 353                                 /* reduce ref-count */
 354                                 SCTP_INP_WLOCK(inp);
 355                                 SCTP_INP_DECR_REF(inp);
 356                                 SCTP_INP_WUNLOCK(inp);
 357                         }
 358                         if (stcb) {
 359                                 SCTP_TCB_UNLOCK(stcb);
 360                         }
 361                 }
 362         }
 363         return;
 364 }
 365 #endif
 366
 367 static int
 368 sctp_getcred(SYSCTL_HANDLER_ARGS)
 369 {
 370         struct xucred xuc;
 371         struct sockaddr_in addrs[2];
 372         struct sctp_inpcb *inp;
 373         struct sctp_nets *net;
 374         struct sctp_tcb *stcb;
 375         int error;
 376         uint32_t vrf_id;
 377
 378         /* FIX, for non-bsd is this right? */
 379         vrf_id = SCTP_DEFAULT_VRFID;
 380
 381         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 382
 383         if (error)
 384                 return (error);
 385
 386         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 387         if (error)
 388                 return (error);
 389
 390         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 391             sintosa(&addrs[0]),
 392             &inp, &net, 1, vrf_id);
 393         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 394                 if ((inp != NULL) && (stcb == NULL)) {
 395                         /* reduce ref-count */
 396                         SCTP_INP_WLOCK(inp);
 397                         SCTP_INP_DECR_REF(inp);
 398                         goto cred_can_cont;
 399                 }
 400
 401                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 402                 error = ENOENT;
 403                 goto out;
 404         }
 405         SCTP_TCB_UNLOCK(stcb);
 406         /*
 407          * We use the write lock here, only since in the error leg we need
 408          * it. If we used RLOCK, then we would have to
 409          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 410          * Better to use higher wlock.
 411          */
 412         SCTP_INP_WLOCK(inp);
 413 cred_can_cont:
 414         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 415         if (error) {
 416                 SCTP_INP_WUNLOCK(inp);
 417                 goto out;
 418         }
 419         cru2x(inp->sctp_socket->so_cred, &xuc);
 420         SCTP_INP_WUNLOCK(inp);
 421         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 422 out:
 423         return (error);
 424 }
 425
 426 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred,
 427     CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 428     0, 0, sctp_getcred, "S,ucred",
 429     "Get the ucred of a SCTP connection");
 430
 431 #ifdef INET
 432 static void
 433 sctp_abort(struct socket *so)
 434 {
 435         struct epoch_tracker et;
 436         struct sctp_inpcb *inp;
 437
 438         inp = (struct sctp_inpcb *)so->so_pcb;
 439         if (inp == NULL) {
 440                 return;
 441         }
 442
 443         SCTP_INP_WLOCK(inp);
 444         NET_EPOCH_ENTER(et);
 445 #ifdef SCTP_LOG_CLOSING
 446         sctp_log_closing(inp, NULL, 17);
 447 #endif
 448         if (((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0)) {
 449                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 450 #ifdef SCTP_LOG_CLOSING
 451                 sctp_log_closing(inp, NULL, 16);
 452 #endif
 453                 SCTP_INP_WUNLOCK(inp);
 454                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 455                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 456                 SOCK_LOCK(so);
 457                 KASSERT(!SOLISTENING(so),
 458                     ("sctp_abort: called on listening socket %p", so));
 459                 SCTP_SB_CLEAR(so->so_snd);
 460                 SCTP_SB_CLEAR(so->so_rcv);
 461                 /* Now null out the reference, we are completely detached. */
 462                 so->so_pcb = NULL;
 463                 SOCK_UNLOCK(so);
 464         } else {
 465                 SCTP_INP_WUNLOCK(inp);
 466         }
 467         NET_EPOCH_EXIT(et);
 468 }
 469
 470 static int
 471 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 472 {
 473         struct sctp_inpcb *inp;
 474         struct inpcb *ip_inp;
 475         int error;
 476         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 477
 478         inp = (struct sctp_inpcb *)so->so_pcb;
 479         if (inp != NULL) {
 480                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 481                 return (EINVAL);
 482         }
 483         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 484                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 485                 if (error) {
 486                         return (error);
 487                 }
 488         }
 489         error = sctp_inpcb_alloc(so, vrf_id);
 490         if (error) {
 491                 return (error);
 492         }
 493         inp = (struct sctp_inpcb *)so->so_pcb;
 494         SCTP_INP_WLOCK(inp);
 495         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 496         ip_inp = &inp->ip_inp.inp;
 497         ip_inp->inp_vflag |= INP_IPV4;
 498         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 499         SCTP_INP_WUNLOCK(inp);
 500         return (0);
 501 }
 502
 503 static int
 504 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 505 {
 506         struct sctp_inpcb *inp;
 507
 508         inp = (struct sctp_inpcb *)so->so_pcb;
 509         if (inp == NULL) {
 510                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 511                 return (EINVAL);
 512         }
 513         if (addr != NULL) {
 514                 if ((addr->sa_family != AF_INET) ||
 515                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 516                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 517                         return (EINVAL);
 518                 }
 519         }
 520         return (sctp_inpcb_bind(so, addr, NULL, p));
 521 }
 522
 523 #endif
 524 void
 525 sctp_close(struct socket *so)
 526 {
 527         struct epoch_tracker et;
 528         struct sctp_inpcb *inp;
 529
 530         inp = (struct sctp_inpcb *)so->so_pcb;
 531         if (inp == NULL)
 532                 return;
 533
 534         /*
 535          * Inform all the lower layer assoc that we are done.
 536          */
 537         SCTP_INP_WLOCK(inp);
 538         NET_EPOCH_ENTER(et);
 539 #ifdef SCTP_LOG_CLOSING
 540         sctp_log_closing(inp, NULL, 17);
 541 #endif
 542         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 543                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 544                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 545                     (SCTP_SBAVAIL(&so->so_rcv) > 0)) {
 546 #ifdef SCTP_LOG_CLOSING
 547                         sctp_log_closing(inp, NULL, 13);
 548 #endif
 549                         SCTP_INP_WUNLOCK(inp);
 550                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 551                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 552                 } else {
 553 #ifdef SCTP_LOG_CLOSING
 554                         sctp_log_closing(inp, NULL, 14);
 555 #endif
 556                         SCTP_INP_WUNLOCK(inp);
 557                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 558                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 559                 }
 560                 /*
 561                  * The socket is now detached, no matter what the state of
 562                  * the SCTP association.
 563                  */
 564                 SOCK_LOCK(so);
 565                 if (!SOLISTENING(so)) {
 566                         SCTP_SB_CLEAR(so->so_snd);
 567                         SCTP_SB_CLEAR(so->so_rcv);
 568                 }
 569                 /* Now null out the reference, we are completely detached. */
 570                 so->so_pcb = NULL;
 571                 SOCK_UNLOCK(so);
 572         } else {
 573                 SCTP_INP_WUNLOCK(inp);
 574         }
 575         NET_EPOCH_EXIT(et);
 576 }
 577
 578 int
 579 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 580     struct mbuf *control, struct thread *p);
 581
 582 int
 583 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 584     struct mbuf *control, struct thread *p)
 585 {
 586         struct sctp_inpcb *inp;
 587         int error;
 588
 589         inp = (struct sctp_inpcb *)so->so_pcb;
 590         if (inp == NULL) {
 591                 if (control) {
 592                         sctp_m_freem(control);
 593                         control = NULL;
 594                 }
 595                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 596                 sctp_m_freem(m);
 597                 return (EINVAL);
 598         }
 599         /* Got to have an to address if we are NOT a connected socket */
 600         if ((addr == NULL) &&
 601             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 602             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 603                 goto connected_type;
 604         }
 605
 606         error = 0;
 607         if (addr == NULL) {
 608                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 609                 error = EDESTADDRREQ;
 610         } else if (addr->sa_family != AF_INET) {
 611                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 612                 error = EAFNOSUPPORT;
 613         } else if (addr->sa_len != sizeof(struct sockaddr_in)) {
 614                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 615                 error = EINVAL;
 616         }
 617         if (error != 0) {
 618                 sctp_m_freem(m);
 619                 if (control) {
 620                         sctp_m_freem(control);
 621                         control = NULL;
 622                 }
 623                 return (error);
 624         }
 625 connected_type:
 626         /* now what about control */
 627         if (control) {
 628                 if (inp->control) {
 629                         sctp_m_freem(inp->control);
 630                         inp->control = NULL;
 631                 }
 632                 inp->control = control;
 633         }
 634         /* Place the data */
 635         if (inp->pkt) {
 636                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 637                 inp->pkt_last = m;
 638         } else {
 639                 inp->pkt_last = inp->pkt = m;
 640         }
 641         if (
 642         /* FreeBSD uses a flag passed */
 643             ((flags & PRUS_MORETOCOME) == 0)
 644             ) {
 645                 /*
 646                  * note with the current version this code will only be used
 647                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 648                  * re-defining sosend to use the sctp_sosend. One can
 649                  * optionally switch back to this code (by changing back the
 650                  * definitions) but this is not advisable. This code is used
 651                  * by FreeBSD when sending a file with sendfile() though.
 652                  */
 653                 struct epoch_tracker et;
 654                 int ret;
 655
 656                 NET_EPOCH_ENTER(et);
 657                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 658                 NET_EPOCH_EXIT(et);
 659                 inp->pkt = NULL;
 660                 inp->control = NULL;
 661                 return (ret);
 662         } else {
 663                 return (0);
 664         }
 665 }
 666
 667 int
 668 sctp_disconnect(struct socket *so)
 669 {
 670         struct sctp_inpcb *inp;
 671
 672         inp = (struct sctp_inpcb *)so->so_pcb;
 673         if (inp == NULL) {
 674                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 675                 return (ENOTCONN);
 676         }
 677         SCTP_INP_RLOCK(inp);
 678         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 679             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 680                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 681                         /* No connection */
 682                         SCTP_INP_RUNLOCK(inp);
 683                         return (0);
 684                 } else {
 685                         struct epoch_tracker et;
 686                         struct sctp_association *asoc;
 687                         struct sctp_tcb *stcb;
 688
 689                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 690                         if (stcb == NULL) {
 691                                 SCTP_INP_RUNLOCK(inp);
 692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 693                                 return (EINVAL);
 694                         }
 695                         SCTP_TCB_LOCK(stcb);
 696                         asoc = &stcb->asoc;
 697                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 698                                 /* We are about to be freed, out of here */
 699                                 SCTP_TCB_UNLOCK(stcb);
 700                                 SCTP_INP_RUNLOCK(inp);
 701                                 return (0);
 702                         }
 703                         NET_EPOCH_ENTER(et);
 704                         if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 705                             (SCTP_SBAVAIL(&so->so_rcv) > 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                 SOCK_LOCK(so);
 843                 KASSERT(!SOLISTENING(so),
 844                     ("sctp_flush: called on listening socket %p", so));
 845                 SCTP_SB_CLEAR(so->so_rcv);
 846                 SOCK_UNLOCK(so);
 847         }
 848         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 849                 /*
 850                  * First make sure the sb will be happy, we don't use these
 851                  * except maybe the count
 852                  */
 853                 SOCK_LOCK(so);
 854                 KASSERT(!SOLISTENING(so),
 855                     ("sctp_flush: called on listening socket %p", so));
 856                 SCTP_SB_CLEAR(so->so_snd);
 857                 SOCK_UNLOCK(so);
 858         }
 859         return (0);
 860 }
 861
 862 int
 863 sctp_shutdown(struct socket *so)
 864 {
 865         struct sctp_inpcb *inp;
 866
 867         inp = (struct sctp_inpcb *)so->so_pcb;
 868         if (inp == NULL) {
 869                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 870                 return (EINVAL);
 871         }
 872         SCTP_INP_RLOCK(inp);
 873         /* For UDP model this is a invalid call */
 874         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 875             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 876                 /* Restore the flags that the soshutdown took away. */
 877                 SOCKBUF_LOCK(&so->so_rcv);
 878                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 879                 SOCKBUF_UNLOCK(&so->so_rcv);
 880                 /* This proc will wakeup for read and do nothing (I hope) */
 881                 SCTP_INP_RUNLOCK(inp);
 882                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 883                 return (EOPNOTSUPP);
 884         } else {
 885                 /*
 886                  * Ok, if we reach here its the TCP model and it is either a
 887                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 888                  * against it.
 889                  */
 890                 struct epoch_tracker et;
 891                 struct sctp_tcb *stcb;
 892                 struct sctp_association *asoc;
 893                 struct sctp_nets *netp;
 894
 895                 if ((so->so_state &
 896                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 897                         SCTP_INP_RUNLOCK(inp);
 898                         return (ENOTCONN);
 899                 }
 900                 socantsendmore(so);
 901
 902                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 903                 if (stcb == NULL) {
 904                         /*
 905                          * Ok, we hit the case that the shutdown call was
 906                          * made after an abort or something. Nothing to do
 907                          * now.
 908                          */
 909                         SCTP_INP_RUNLOCK(inp);
 910                         return (0);
 911                 }
 912                 SCTP_TCB_LOCK(stcb);
 913                 asoc = &stcb->asoc;
 914                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 915                         SCTP_TCB_UNLOCK(stcb);
 916                         SCTP_INP_RUNLOCK(inp);
 917                         return (0);
 918                 }
 919                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 920                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 921                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 922                         /*
 923                          * If we are not in or before ESTABLISHED, there is
 924                          * no protocol action required.
 925                          */
 926                         SCTP_TCB_UNLOCK(stcb);
 927                         SCTP_INP_RUNLOCK(inp);
 928                         return (0);
 929                 }
 930                 NET_EPOCH_ENTER(et);
 931                 if (stcb->asoc.alternate) {
 932                         netp = stcb->asoc.alternate;
 933                 } else {
 934                         netp = stcb->asoc.primary_destination;
 935                 }
 936                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 937                     TAILQ_EMPTY(&asoc->send_queue) &&
 938                     TAILQ_EMPTY(&asoc->sent_queue) &&
 939                     (asoc->stream_queue_cnt == 0)) {
 940                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 941                                 goto abort_anyway;
 942                         }
 943                         /* there is nothing queued to send, so I'm done... */
 944                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 945                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 946                         sctp_stop_timers_for_shutdown(stcb);
 947                         sctp_send_shutdown(stcb, netp);
 948                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 949                             stcb->sctp_ep, stcb, netp);
 950                 } else {
 951                         /*
 952                          * We still got (or just got) data to send, so set
 953                          * SHUTDOWN_PENDING.
 954                          */
 955                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 956                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 957                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 958                         }
 959                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 960                             TAILQ_EMPTY(&asoc->sent_queue) &&
 961                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 962                                 struct mbuf *op_err;
 963
 964                 abort_anyway:
 965                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 966                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 967                                 SCTP_INP_RUNLOCK(inp);
 968                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 969                                     op_err, false, SCTP_SO_LOCKED);
 970                                 NET_EPOCH_EXIT(et);
 971                                 return (0);
 972                         }
 973                 }
 974                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 975                 /*
 976                  * XXX: Why do this in the case where we have still data
 977                  * queued?
 978                  */
 979                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 980                 SCTP_TCB_UNLOCK(stcb);
 981                 SCTP_INP_RUNLOCK(inp);
 982                 NET_EPOCH_EXIT(et);
 983                 return (0);
 984         }
 985 }
 986
 987 /*
 988  * copies a "user" presentable address and removes embedded scope, etc.
 989  * returns 0 on success, 1 on error
 990  */
 991 static uint32_t
 992 sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
 993 {
 994 #ifdef INET6
 995         struct sockaddr_in6 lsa6;
 996
 997         src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
 998             &lsa6);
 999 #endif
1000         memcpy(dst, src, src->sa_len);
1001         return (0);
1002 }
1003
1004 static size_t
1005 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1006     struct sctp_tcb *stcb,
1007     size_t limit,
1008     struct sockaddr *addr,
1009     uint32_t vrf_id)
1010 {
1011         struct sctp_ifn *sctp_ifn;
1012         struct sctp_ifa *sctp_ifa;
1013         size_t actual;
1014         int loopback_scope;
1015 #if defined(INET)
1016         int ipv4_local_scope, ipv4_addr_legal;
1017 #endif
1018 #if defined(INET6)
1019         int local_scope, site_scope, ipv6_addr_legal;
1020 #endif
1021         struct sctp_vrf *vrf;
1022
1023         SCTP_IPI_ADDR_LOCK_ASSERT();
1024         actual = 0;
1025         if (limit == 0)
1026                 return (actual);
1027
1028         if (stcb) {
1029                 /* Turn on all the appropriate scope */
1030                 loopback_scope = stcb->asoc.scope.loopback_scope;
1031 #if defined(INET)
1032                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1033                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1034 #endif
1035 #if defined(INET6)
1036                 local_scope = stcb->asoc.scope.local_scope;
1037                 site_scope = stcb->asoc.scope.site_scope;
1038                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1039 #endif
1040         } else {
1041                 /* Use generic values for endpoints. */
1042                 loopback_scope = 1;
1043 #if defined(INET)
1044                 ipv4_local_scope = 1;
1045 #endif
1046 #if defined(INET6)
1047                 local_scope = 1;
1048                 site_scope = 1;
1049 #endif
1050                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1051 #if defined(INET6)
1052                         ipv6_addr_legal = 1;
1053 #endif
1054 #if defined(INET)
1055                         if (SCTP_IPV6_V6ONLY(inp)) {
1056                                 ipv4_addr_legal = 0;
1057                         } else {
1058                                 ipv4_addr_legal = 1;
1059                         }
1060 #endif
1061                 } else {
1062 #if defined(INET6)
1063                         ipv6_addr_legal = 0;
1064 #endif
1065 #if defined(INET)
1066                         ipv4_addr_legal = 1;
1067 #endif
1068                 }
1069         }
1070         vrf = sctp_find_vrf(vrf_id);
1071         if (vrf == NULL) {
1072                 return (0);
1073         }
1074         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1075                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1076                         if ((loopback_scope == 0) &&
1077                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1078                                 /* Skip loopback if loopback_scope not set */
1079                                 continue;
1080                         }
1081                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1082                                 if (stcb) {
1083                                         /*
1084                                          * For the BOUND-ALL case, the list
1085                                          * associated with a TCB is Always
1086                                          * considered a reverse list.. i.e.
1087                                          * it lists addresses that are NOT
1088                                          * part of the association. If this
1089                                          * is one of those we must skip it.
1090                                          */
1091                                         if (sctp_is_addr_restricted(stcb,
1092                                             sctp_ifa)) {
1093                                                 continue;
1094                                         }
1095                                 }
1096                                 switch (sctp_ifa->address.sa.sa_family) {
1097 #ifdef INET
1098                                 case AF_INET:
1099                                         if (ipv4_addr_legal) {
1100                                                 struct sockaddr_in *sin;
1101
1102                                                 sin = &sctp_ifa->address.sin;
1103                                                 if (sin->sin_addr.s_addr == 0) {
1104                                                         /*
1105                                                          * we skip
1106                                                          * unspecified
1107                                                          * addresses
1108                                                          */
1109                                                         continue;
1110                                                 }
1111                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1112                                                     &sin->sin_addr) != 0) {
1113                                                         continue;
1114                                                 }
1115                                                 if ((ipv4_local_scope == 0) &&
1116                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1117                                                         continue;
1118                                                 }
1119 #ifdef INET6
1120                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1121                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1122                                                                 return (actual);
1123                                                         }
1124                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
1125                                                         ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1126                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1127                                                         actual += sizeof(struct sockaddr_in6);
1128                                                 } else {
1129 #endif
1130                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1131                                                                 return (actual);
1132                                                         }
1133                                                         memcpy(addr, sin, sizeof(struct sockaddr_in));
1134                                                         ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1135                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
1136                                                         actual += sizeof(struct sockaddr_in);
1137 #ifdef INET6
1138                                                 }
1139 #endif
1140                                         } else {
1141                                                 continue;
1142                                         }
1143                                         break;
1144 #endif
1145 #ifdef INET6
1146                                 case AF_INET6:
1147                                         if (ipv6_addr_legal) {
1148                                                 struct sockaddr_in6 *sin6;
1149
1150                                                 sin6 = &sctp_ifa->address.sin6;
1151                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1152                                                         /*
1153                                                          * we skip
1154                                                          * unspecified
1155                                                          * addresses
1156                                                          */
1157                                                         continue;
1158                                                 }
1159                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1160                                                     &sin6->sin6_addr) != 0) {
1161                                                         continue;
1162                                                 }
1163                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1164                                                         if (local_scope == 0)
1165                                                                 continue;
1166                                                         if (sin6->sin6_scope_id == 0) {
1167                                                                 if (sa6_recoverscope(sin6) != 0)
1168                                                                         /*
1169                                                                          *
1170                                                                          * bad
1171                                                                          * link
1172                                                                          *
1173                                                                          * local
1174                                                                          *
1175                                                                          * address
1176                                                                          */
1177                                                                         continue;
1178                                                         }
1179                                                 }
1180                                                 if ((site_scope == 0) &&
1181                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1182                                                         continue;
1183                                                 }
1184                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1185                                                         return (actual);
1186                                                 }
1187                                                 memcpy(addr, sin6, sizeof(struct sockaddr_in6));
1188                                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1189                                                 addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1190                                                 actual += sizeof(struct sockaddr_in6);
1191                                         } else {
1192                                                 continue;
1193                                         }
1194                                         break;
1195 #endif
1196                                 default:
1197                                         /* TSNH */
1198                                         break;
1199                                 }
1200                         }
1201                 }
1202         } else {
1203                 struct sctp_laddr *laddr;
1204                 size_t sa_len;
1205
1206                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1207                         if (stcb) {
1208                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1209                                         continue;
1210                                 }
1211                         }
1212                         sa_len = laddr->ifa->address.sa.sa_len;
1213                         if (actual + sa_len > limit) {
1214                                 return (actual);
1215                         }
1216                         if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
1217                                 continue;
1218                         switch (laddr->ifa->address.sa.sa_family) {
1219 #ifdef INET
1220                         case AF_INET:
1221                                 ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1222                                 break;
1223 #endif
1224 #ifdef INET6
1225                         case AF_INET6:
1226                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1227                                 break;
1228 #endif
1229                         default:
1230                                 /* TSNH */
1231                                 break;
1232                         }
1233                         addr = (struct sockaddr *)((caddr_t)addr + sa_len);
1234                         actual += sa_len;
1235                 }
1236         }
1237         return (actual);
1238 }
1239
1240 static size_t
1241 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1242     struct sctp_tcb *stcb,
1243     size_t limit,
1244     struct sockaddr *addr)
1245 {
1246         size_t size;
1247
1248         SCTP_IPI_ADDR_RLOCK();
1249         /* fill up addresses for the endpoint's default vrf */
1250         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
1251             inp->def_vrf_id);
1252         SCTP_IPI_ADDR_RUNLOCK();
1253         return (size);
1254 }
1255
1256 static size_t
1257 sctp_max_size_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1258 {
1259         struct sctp_vrf *vrf;
1260         size_t size;
1261
1262         /*
1263          * In both sub-set bound an bound_all cases we return the size of
1264          * the maximum number of addresses that you could get. In reality
1265          * the sub-set bound may have an exclusion list for a given TCB or
1266          * in the bound-all case a TCB may NOT include the loopback or other
1267          * addresses as well.
1268          */
1269         SCTP_IPI_ADDR_LOCK_ASSERT();
1270         vrf = sctp_find_vrf(vrf_id);
1271         if (vrf == NULL) {
1272                 return (0);
1273         }
1274         size = 0;
1275         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1276                 struct sctp_ifn *sctp_ifn;
1277                 struct sctp_ifa *sctp_ifa;
1278
1279                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1280                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1281                                 /* Count them if they are the right type */
1282                                 switch (sctp_ifa->address.sa.sa_family) {
1283 #ifdef INET
1284                                 case AF_INET:
1285 #ifdef INET6
1286                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1287                                                 size += sizeof(struct sockaddr_in6);
1288                                         else
1289                                                 size += sizeof(struct sockaddr_in);
1290 #else
1291                                         size += sizeof(struct sockaddr_in);
1292 #endif
1293                                         break;
1294 #endif
1295 #ifdef INET6
1296                                 case AF_INET6:
1297                                         size += sizeof(struct sockaddr_in6);
1298                                         break;
1299 #endif
1300                                 default:
1301                                         break;
1302                                 }
1303                         }
1304                 }
1305         } else {
1306                 struct sctp_laddr *laddr;
1307
1308                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1309                         switch (laddr->ifa->address.sa.sa_family) {
1310 #ifdef INET
1311                         case AF_INET:
1312 #ifdef INET6
1313                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1314                                         size += sizeof(struct sockaddr_in6);
1315                                 else
1316                                         size += sizeof(struct sockaddr_in);
1317 #else
1318                                 size += sizeof(struct sockaddr_in);
1319 #endif
1320                                 break;
1321 #endif
1322 #ifdef INET6
1323                         case AF_INET6:
1324                                 size += sizeof(struct sockaddr_in6);
1325                                 break;
1326 #endif
1327                         default:
1328                                 break;
1329                         }
1330                 }
1331         }
1332         return (size);
1333 }
1334
1335 static size_t
1336 sctp_max_size_addresses(struct sctp_inpcb *inp)
1337 {
1338         size_t size;
1339
1340         SCTP_IPI_ADDR_RLOCK();
1341         /* Maximum size of all addresses for the endpoint's default VRF */
1342         size = sctp_max_size_addresses_vrf(inp, inp->def_vrf_id);
1343         SCTP_IPI_ADDR_RUNLOCK();
1344         return (size);
1345 }
1346
1347 static int
1348 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1349     size_t optsize, void *p, int delay)
1350 {
1351         int error;
1352         int creat_lock_on = 0;
1353         struct sctp_tcb *stcb = NULL;
1354         struct sockaddr *sa;
1355         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1356         uint32_t vrf_id;
1357         sctp_assoc_t *a_id;
1358
1359         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1360
1361         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1362             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1363                 /* We are already connected AND the TCP model */
1364                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1365                 return (EADDRINUSE);
1366         }
1367
1368         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1369             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1370                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1371                 return (EINVAL);
1372         }
1373
1374         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1375                 SCTP_INP_RLOCK(inp);
1376                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1377                 SCTP_INP_RUNLOCK(inp);
1378         }
1379         if (stcb) {
1380                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1381                 return (EALREADY);
1382         }
1383         SCTP_INP_INCR_REF(inp);
1384         SCTP_ASOC_CREATE_LOCK(inp);
1385         creat_lock_on = 1;
1386         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1387             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1388                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1389                 error = EFAULT;
1390                 goto out_now;
1391         }
1392         totaddrp = (unsigned int *)optval;
1393         totaddr = *totaddrp;
1394         sa = (struct sockaddr *)(totaddrp + 1);
1395         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1396         if (error != 0) {
1397                 /* Already have or am bring up an association */
1398                 SCTP_ASOC_CREATE_UNLOCK(inp);
1399                 creat_lock_on = 0;
1400                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1401                 goto out_now;
1402         }
1403 #ifdef INET6
1404         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1405             (num_v6 > 0)) {
1406                 error = EINVAL;
1407                 goto out_now;
1408         }
1409         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1410             (num_v4 > 0)) {
1411                 if (SCTP_IPV6_V6ONLY(inp)) {
1412                         /*
1413                          * if IPV6_V6ONLY flag, ignore connections destined
1414                          * to a v4 addr or v4-mapped addr
1415                          */
1416                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1417                         error = EINVAL;
1418                         goto out_now;
1419                 }
1420         }
1421 #endif                          /* INET6 */
1422         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
1423                 /* Bind a ephemeral port */
1424                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1425                 if (error) {
1426                         goto out_now;
1427                 }
1428         }
1429
1430         /* FIX ME: do we want to pass in a vrf on the connect call? */
1431         vrf_id = inp->def_vrf_id;
1432
1433         /* We are GOOD to go */
1434         stcb = sctp_aloc_assoc_connected(inp, sa, &error, 0, 0, vrf_id,
1435             inp->sctp_ep.pre_open_stream_count,
1436             inp->sctp_ep.port,
1437             (struct thread *)p,
1438             SCTP_INITIALIZE_AUTH_PARAMS);
1439         if (stcb == NULL) {
1440                 /* Gak! no memory */
1441                 goto out_now;
1442         }
1443         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1444         /* move to second address */
1445         switch (sa->sa_family) {
1446 #ifdef INET
1447         case AF_INET:
1448                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1449                 break;
1450 #endif
1451 #ifdef INET6
1452         case AF_INET6:
1453                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1454                 break;
1455 #endif
1456         default:
1457                 break;
1458         }
1459
1460         error = 0;
1461         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1462         /* Fill in the return id */
1463         if (error) {
1464                 goto out_now;
1465         }
1466         a_id = (sctp_assoc_t *)optval;
1467         *a_id = sctp_get_associd(stcb);
1468
1469         if (delay) {
1470                 /* doing delayed connection */
1471                 stcb->asoc.delayed_connection = 1;
1472                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1473         } else {
1474                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1475                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1476         }
1477         SCTP_TCB_UNLOCK(stcb);
1478 out_now:
1479         if (creat_lock_on) {
1480                 SCTP_ASOC_CREATE_UNLOCK(inp);
1481         }
1482         SCTP_INP_DECR_REF(inp);
1483         return (error);
1484 }
1485
1486 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1487         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1488             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1489                 SCTP_INP_RLOCK(inp); \
1490                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1491                 if (stcb) { \
1492                         SCTP_TCB_LOCK(stcb); \
1493                 } \
1494                 SCTP_INP_RUNLOCK(inp); \
1495         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1496                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1497                 if (stcb == NULL) { \
1498                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1499                         error = ENOENT; \
1500                         break; \
1501                 } \
1502         } else { \
1503                 stcb = NULL; \
1504         } \
1505 }
1506
1507 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1508         if (size < sizeof(type)) { \
1509                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1510                 error = EINVAL; \
1511                 break; \
1512         } else { \
1513                 destp = (type *)srcp; \
1514         } \
1515 }
1516
1517 static int
1518 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1519     void *p)
1520 {
1521         struct sctp_inpcb *inp = NULL;
1522         int error, val = 0;
1523         struct sctp_tcb *stcb = NULL;
1524
1525         if (optval == NULL) {
1526                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1527                 return (EINVAL);
1528         }
1529
1530         inp = (struct sctp_inpcb *)so->so_pcb;
1531         if (inp == NULL) {
1532                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1533                 return EINVAL;
1534         }
1535         error = 0;
1536
1537         switch (optname) {
1538         case SCTP_NODELAY:
1539         case SCTP_AUTOCLOSE:
1540         case SCTP_EXPLICIT_EOR:
1541         case SCTP_AUTO_ASCONF:
1542         case SCTP_DISABLE_FRAGMENTS:
1543         case SCTP_I_WANT_MAPPED_V4_ADDR:
1544         case SCTP_USE_EXT_RCVINFO:
1545                 SCTP_INP_RLOCK(inp);
1546                 switch (optname) {
1547                 case SCTP_DISABLE_FRAGMENTS:
1548                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1549                         break;
1550                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1551                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1552                         break;
1553                 case SCTP_AUTO_ASCONF:
1554                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1555                                 /* only valid for bound all sockets */
1556                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1557                         } else {
1558                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1559                                 error = EINVAL;
1560                                 goto flags_out;
1561                         }
1562                         break;
1563                 case SCTP_EXPLICIT_EOR:
1564                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1565                         break;
1566                 case SCTP_NODELAY:
1567                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1568                         break;
1569                 case SCTP_USE_EXT_RCVINFO:
1570                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1571                         break;
1572                 case SCTP_AUTOCLOSE:
1573                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1574                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1575                         else
1576                                 val = 0;
1577                         break;
1578
1579                 default:
1580                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1581                         error = ENOPROTOOPT;
1582                 }               /* end switch (sopt->sopt_name) */
1583                 if (*optsize < sizeof(val)) {
1584                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1585                         error = EINVAL;
1586                 }
1587 flags_out:
1588                 SCTP_INP_RUNLOCK(inp);
1589                 if (error == 0) {
1590                         /* return the option value */
1591                         *(int *)optval = val;
1592                         *optsize = sizeof(val);
1593                 }
1594                 break;
1595         case SCTP_GET_PACKET_LOG:
1596                 {
1597 #ifdef  SCTP_PACKET_LOGGING
1598                         uint8_t *target;
1599                         int ret;
1600
1601                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1602                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1603                         *optsize = ret;
1604 #else
1605                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1606                         error = EOPNOTSUPP;
1607 #endif
1608                         break;
1609                 }
1610         case SCTP_REUSE_PORT:
1611                 {
1612                         uint32_t *value;
1613
1614                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1615                                 /* Can't do this for a 1-m socket */
1616                                 error = EINVAL;
1617                                 break;
1618                         }
1619                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1620                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1621                         *optsize = sizeof(uint32_t);
1622                         break;
1623                 }
1624         case SCTP_PARTIAL_DELIVERY_POINT:
1625                 {
1626                         uint32_t *value;
1627
1628                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1629                         *value = inp->partial_delivery_point;
1630                         *optsize = sizeof(uint32_t);
1631                         break;
1632                 }
1633         case SCTP_FRAGMENT_INTERLEAVE:
1634                 {
1635                         uint32_t *value;
1636
1637                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1638                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1639                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1640                                         *value = SCTP_FRAG_LEVEL_2;
1641                                 } else {
1642                                         *value = SCTP_FRAG_LEVEL_1;
1643                                 }
1644                         } else {
1645                                 *value = SCTP_FRAG_LEVEL_0;
1646                         }
1647                         *optsize = sizeof(uint32_t);
1648                         break;
1649                 }
1650         case SCTP_INTERLEAVING_SUPPORTED:
1651                 {
1652                         struct sctp_assoc_value *av;
1653
1654                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1655                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1656
1657                         if (stcb) {
1658                                 av->assoc_value = stcb->asoc.idata_supported;
1659                                 SCTP_TCB_UNLOCK(stcb);
1660                         } else {
1661                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1662                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1663                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1664                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1665                                         SCTP_INP_RLOCK(inp);
1666                                         if (inp->idata_supported) {
1667                                                 av->assoc_value = 1;
1668                                         } else {
1669                                                 av->assoc_value = 0;
1670                                         }
1671                                         SCTP_INP_RUNLOCK(inp);
1672                                 } else {
1673                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1674                                         error = EINVAL;
1675                                 }
1676                         }
1677                         if (error == 0) {
1678                                 *optsize = sizeof(struct sctp_assoc_value);
1679                         }
1680                         break;
1681                 }
1682         case SCTP_CMT_ON_OFF:
1683                 {
1684                         struct sctp_assoc_value *av;
1685
1686                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1687                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1688                         if (stcb) {
1689                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1690                                 SCTP_TCB_UNLOCK(stcb);
1691                         } else {
1692                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1693                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1694                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1695                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1696                                         SCTP_INP_RLOCK(inp);
1697                                         av->assoc_value = inp->sctp_cmt_on_off;
1698                                         SCTP_INP_RUNLOCK(inp);
1699                                 } else {
1700                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1701                                         error = EINVAL;
1702                                 }
1703                         }
1704                         if (error == 0) {
1705                                 *optsize = sizeof(struct sctp_assoc_value);
1706                         }
1707                         break;
1708                 }
1709         case SCTP_PLUGGABLE_CC:
1710                 {
1711                         struct sctp_assoc_value *av;
1712
1713                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1714                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1715                         if (stcb) {
1716                                 av->assoc_value = stcb->asoc.congestion_control_module;
1717                                 SCTP_TCB_UNLOCK(stcb);
1718                         } else {
1719                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1720                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1721                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1722                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1723                                         SCTP_INP_RLOCK(inp);
1724                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1725                                         SCTP_INP_RUNLOCK(inp);
1726                                 } else {
1727                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1728                                         error = EINVAL;
1729                                 }
1730                         }
1731                         if (error == 0) {
1732                                 *optsize = sizeof(struct sctp_assoc_value);
1733                         }
1734                         break;
1735                 }
1736         case SCTP_CC_OPTION:
1737                 {
1738                         struct sctp_cc_option *cc_opt;
1739
1740                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1741                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1742                         if (stcb == NULL) {
1743                                 error = EINVAL;
1744                         } else {
1745                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1746                                         error = ENOTSUP;
1747                                 } else {
1748                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1749                                         *optsize = sizeof(struct sctp_cc_option);
1750                                 }
1751                                 SCTP_TCB_UNLOCK(stcb);
1752                         }
1753                         break;
1754                 }
1755         case SCTP_PLUGGABLE_SS:
1756                 {
1757                         struct sctp_assoc_value *av;
1758
1759                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1760                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1761                         if (stcb) {
1762                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1763                                 SCTP_TCB_UNLOCK(stcb);
1764                         } else {
1765                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1766                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1767                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1768                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1769                                         SCTP_INP_RLOCK(inp);
1770                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1771                                         SCTP_INP_RUNLOCK(inp);
1772                                 } else {
1773                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1774                                         error = EINVAL;
1775                                 }
1776                         }
1777                         if (error == 0) {
1778                                 *optsize = sizeof(struct sctp_assoc_value);
1779                         }
1780                         break;
1781                 }
1782         case SCTP_SS_VALUE:
1783                 {
1784                         struct sctp_stream_value *av;
1785
1786                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1787                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1788                         if (stcb) {
1789                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1790                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1791                                     &av->stream_value) < 0)) {
1792                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1793                                         error = EINVAL;
1794                                 } else {
1795                                         *optsize = sizeof(struct sctp_stream_value);
1796                                 }
1797                                 SCTP_TCB_UNLOCK(stcb);
1798                         } else {
1799                                 /*
1800                                  * Can't get stream value without
1801                                  * association
1802                                  */
1803                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1804                                 error = EINVAL;
1805                         }
1806                         break;
1807                 }
1808         case SCTP_GET_ADDR_LEN:
1809                 {
1810                         struct sctp_assoc_value *av;
1811
1812                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1813                         error = EINVAL;
1814 #ifdef INET
1815                         if (av->assoc_value == AF_INET) {
1816                                 av->assoc_value = sizeof(struct sockaddr_in);
1817                                 error = 0;
1818                         }
1819 #endif
1820 #ifdef INET6
1821                         if (av->assoc_value == AF_INET6) {
1822                                 av->assoc_value = sizeof(struct sockaddr_in6);
1823                                 error = 0;
1824                         }
1825 #endif
1826                         if (error) {
1827                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1828                         } else {
1829                                 *optsize = sizeof(struct sctp_assoc_value);
1830                         }
1831                         break;
1832                 }
1833         case SCTP_GET_ASSOC_NUMBER:
1834                 {
1835                         uint32_t *value, cnt;
1836
1837                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1838                         SCTP_INP_RLOCK(inp);
1839                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1840                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1841                                 /* Can't do this for a 1-1 socket */
1842                                 error = EINVAL;
1843                                 SCTP_INP_RUNLOCK(inp);
1844                                 break;
1845                         }
1846                         cnt = 0;
1847                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1848                                 cnt++;
1849                         }
1850                         SCTP_INP_RUNLOCK(inp);
1851                         *value = cnt;
1852                         *optsize = sizeof(uint32_t);
1853                         break;
1854                 }
1855         case SCTP_GET_ASSOC_ID_LIST:
1856                 {
1857                         struct sctp_assoc_ids *ids;
1858                         uint32_t at;
1859                         size_t limit;
1860
1861                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1862                         SCTP_INP_RLOCK(inp);
1863                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1864                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1865                                 /* Can't do this for a 1-1 socket */
1866                                 error = EINVAL;
1867                                 SCTP_INP_RUNLOCK(inp);
1868                                 break;
1869                         }
1870                         at = 0;
1871                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1872                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1873                                 if (at < limit) {
1874                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1875                                         if (at == 0) {
1876                                                 error = EINVAL;
1877                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1878                                                 break;
1879                                         }
1880                                 } else {
1881                                         error = EINVAL;
1882                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1883                                         break;
1884                                 }
1885                         }
1886                         SCTP_INP_RUNLOCK(inp);
1887                         if (error == 0) {
1888                                 ids->gaids_number_of_ids = at;
1889                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1890                         }
1891                         break;
1892                 }
1893         case SCTP_CONTEXT:
1894                 {
1895                         struct sctp_assoc_value *av;
1896
1897                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1898                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1899
1900                         if (stcb) {
1901                                 av->assoc_value = stcb->asoc.context;
1902                                 SCTP_TCB_UNLOCK(stcb);
1903                         } else {
1904                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1905                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1906                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1907                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1908                                         SCTP_INP_RLOCK(inp);
1909                                         av->assoc_value = inp->sctp_context;
1910                                         SCTP_INP_RUNLOCK(inp);
1911                                 } else {
1912                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1913                                         error = EINVAL;
1914                                 }
1915                         }
1916                         if (error == 0) {
1917                                 *optsize = sizeof(struct sctp_assoc_value);
1918                         }
1919                         break;
1920                 }
1921         case SCTP_VRF_ID:
1922                 {
1923                         uint32_t *default_vrfid;
1924
1925                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1926                         *default_vrfid = inp->def_vrf_id;
1927                         *optsize = sizeof(uint32_t);
1928                         break;
1929                 }
1930         case SCTP_GET_ASOC_VRF:
1931                 {
1932                         struct sctp_assoc_value *id;
1933
1934                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1935                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1936                         if (stcb == NULL) {
1937                                 error = EINVAL;
1938                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1939                         } else {
1940                                 id->assoc_value = stcb->asoc.vrf_id;
1941                                 SCTP_TCB_UNLOCK(stcb);
1942                                 *optsize = sizeof(struct sctp_assoc_value);
1943                         }
1944                         break;
1945                 }
1946         case SCTP_GET_VRF_IDS:
1947                 {
1948                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1949                         error = EOPNOTSUPP;
1950                         break;
1951                 }
1952         case SCTP_GET_NONCE_VALUES:
1953                 {
1954                         struct sctp_get_nonce_values *gnv;
1955
1956                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1957                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1958
1959                         if (stcb) {
1960                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1961                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1962                                 SCTP_TCB_UNLOCK(stcb);
1963                                 *optsize = sizeof(struct sctp_get_nonce_values);
1964                         } else {
1965                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1966                                 error = ENOTCONN;
1967                         }
1968                         break;
1969                 }
1970         case SCTP_DELAYED_SACK:
1971                 {
1972                         struct sctp_sack_info *sack;
1973
1974                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1975                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1976                         if (stcb) {
1977                                 sack->sack_delay = stcb->asoc.delayed_ack;
1978                                 sack->sack_freq = stcb->asoc.sack_freq;
1979                                 SCTP_TCB_UNLOCK(stcb);
1980                         } else {
1981                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1982                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1983                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1984                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
1985                                         SCTP_INP_RLOCK(inp);
1986                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1987                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1988                                         SCTP_INP_RUNLOCK(inp);
1989                                 } else {
1990                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1991                                         error = EINVAL;
1992                                 }
1993                         }
1994                         if (error == 0) {
1995                                 *optsize = sizeof(struct sctp_sack_info);
1996                         }
1997                         break;
1998                 }
1999         case SCTP_GET_SNDBUF_USE:
2000                 {
2001                         struct sctp_sockstat *ss;
2002
2003                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2004                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2005
2006                         if (stcb) {
2007                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2008                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2009                                     stcb->asoc.size_on_all_streams);
2010                                 SCTP_TCB_UNLOCK(stcb);
2011                                 *optsize = sizeof(struct sctp_sockstat);
2012                         } else {
2013                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2014                                 error = ENOTCONN;
2015                         }
2016                         break;
2017                 }
2018         case SCTP_MAX_BURST:
2019                 {
2020                         struct sctp_assoc_value *av;
2021
2022                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2023                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2024
2025                         if (stcb) {
2026                                 av->assoc_value = stcb->asoc.max_burst;
2027                                 SCTP_TCB_UNLOCK(stcb);
2028                         } else {
2029                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2030                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2031                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2032                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2033                                         SCTP_INP_RLOCK(inp);
2034                                         av->assoc_value = inp->sctp_ep.max_burst;
2035                                         SCTP_INP_RUNLOCK(inp);
2036                                 } else {
2037                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2038                                         error = EINVAL;
2039                                 }
2040                         }
2041                         if (error == 0) {
2042                                 *optsize = sizeof(struct sctp_assoc_value);
2043                         }
2044                         break;
2045                 }
2046         case SCTP_MAXSEG:
2047                 {
2048                         struct sctp_assoc_value *av;
2049
2050                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2051                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2052
2053                         if (stcb) {
2054                                 av->assoc_value = stcb->asoc.sctp_frag_point;
2055                                 SCTP_TCB_UNLOCK(stcb);
2056                         } else {
2057                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2058                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2059                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2060                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2061                                         SCTP_INP_RLOCK(inp);
2062                                         av->assoc_value = inp->sctp_frag_point;
2063                                         SCTP_INP_RUNLOCK(inp);
2064                                 } else {
2065                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2066                                         error = EINVAL;
2067                                 }
2068                         }
2069                         if (error == 0) {
2070                                 *optsize = sizeof(struct sctp_assoc_value);
2071                         }
2072                         break;
2073                 }
2074         case SCTP_GET_STAT_LOG:
2075                 error = sctp_fill_stat_log(optval, optsize);
2076                 break;
2077         case SCTP_EVENTS:
2078                 {
2079                         struct sctp_event_subscribe *events;
2080
2081                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2082                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2083                         SCTP_INP_RLOCK(inp);
2084                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2085                                 events->sctp_data_io_event = 1;
2086
2087                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2088                                 events->sctp_association_event = 1;
2089
2090                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2091                                 events->sctp_address_event = 1;
2092
2093                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2094                                 events->sctp_send_failure_event = 1;
2095
2096                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2097                                 events->sctp_peer_error_event = 1;
2098
2099                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2100                                 events->sctp_shutdown_event = 1;
2101
2102                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2103                                 events->sctp_partial_delivery_event = 1;
2104
2105                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2106                                 events->sctp_adaptation_layer_event = 1;
2107
2108                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2109                                 events->sctp_authentication_event = 1;
2110
2111                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2112                                 events->sctp_sender_dry_event = 1;
2113
2114                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2115                                 events->sctp_stream_reset_event = 1;
2116                         SCTP_INP_RUNLOCK(inp);
2117                         *optsize = sizeof(struct sctp_event_subscribe);
2118                         break;
2119                 }
2120         case SCTP_ADAPTATION_LAYER:
2121                 {
2122                         uint32_t *value;
2123
2124                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2125
2126                         SCTP_INP_RLOCK(inp);
2127                         *value = inp->sctp_ep.adaptation_layer_indicator;
2128                         SCTP_INP_RUNLOCK(inp);
2129                         *optsize = sizeof(uint32_t);
2130                         break;
2131                 }
2132         case SCTP_SET_INITIAL_DBG_SEQ:
2133                 {
2134                         uint32_t *value;
2135
2136                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2137                         SCTP_INP_RLOCK(inp);
2138                         *value = inp->sctp_ep.initial_sequence_debug;
2139                         SCTP_INP_RUNLOCK(inp);
2140                         *optsize = sizeof(uint32_t);
2141                         break;
2142                 }
2143         case SCTP_GET_LOCAL_ADDR_SIZE:
2144                 {
2145                         uint32_t *value;
2146
2147                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2148                         SCTP_INP_RLOCK(inp);
2149                         *value = (uint32_t)sctp_max_size_addresses(inp);
2150                         SCTP_INP_RUNLOCK(inp);
2151                         *optsize = sizeof(uint32_t);
2152                         break;
2153                 }
2154         case SCTP_GET_REMOTE_ADDR_SIZE:
2155                 {
2156                         uint32_t *value;
2157                         struct sctp_nets *net;
2158                         size_t size;
2159
2160                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2161                         /* FIXME MT: change to sctp_assoc_value? */
2162                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2163
2164                         if (stcb != NULL) {
2165                                 size = 0;
2166                                 /* Count the sizes */
2167                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2168                                         switch (net->ro._l_addr.sa.sa_family) {
2169 #ifdef INET
2170                                         case AF_INET:
2171 #ifdef INET6
2172                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2173                                                         size += sizeof(struct sockaddr_in6);
2174                                                 } else {
2175                                                         size += sizeof(struct sockaddr_in);
2176                                                 }
2177 #else
2178                                                 size += sizeof(struct sockaddr_in);
2179 #endif
2180                                                 break;
2181 #endif
2182 #ifdef INET6
2183                                         case AF_INET6:
2184                                                 size += sizeof(struct sockaddr_in6);
2185                                                 break;
2186 #endif
2187                                         default:
2188                                                 break;
2189                                         }
2190                                 }
2191                                 SCTP_TCB_UNLOCK(stcb);
2192                                 *value = (uint32_t)size;
2193                                 *optsize = sizeof(uint32_t);
2194                         } else {
2195                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2196                                     ((sctp_assoc_t)*value <= SCTP_ALL_ASSOC)) {
2197                                         error = EINVAL;
2198                                 } else {
2199                                         error = ENOENT;
2200                                 }
2201                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2202                         }
2203                         break;
2204                 }
2205         case SCTP_GET_PEER_ADDRESSES:
2206                 /*
2207                  * Get the address information, an array is passed in to
2208                  * fill up we pack it.
2209                  */
2210                 {
2211                         size_t cpsz, left;
2212                         struct sockaddr *addr;
2213                         struct sctp_nets *net;
2214                         struct sctp_getaddresses *saddr;
2215
2216                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2217                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2218
2219                         if (stcb != NULL) {
2220                                 left = *optsize - offsetof(struct sctp_getaddresses, addr);
2221                                 *optsize = offsetof(struct sctp_getaddresses, addr);
2222                                 addr = &saddr->addr[0].sa;
2223
2224                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2225                                         switch (net->ro._l_addr.sa.sa_family) {
2226 #ifdef INET
2227                                         case AF_INET:
2228 #ifdef INET6
2229                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2230                                                         cpsz = sizeof(struct sockaddr_in6);
2231                                                 } else {
2232                                                         cpsz = sizeof(struct sockaddr_in);
2233                                                 }
2234 #else
2235                                                 cpsz = sizeof(struct sockaddr_in);
2236 #endif
2237                                                 break;
2238 #endif
2239 #ifdef INET6
2240                                         case AF_INET6:
2241                                                 cpsz = sizeof(struct sockaddr_in6);
2242                                                 break;
2243 #endif
2244                                         default:
2245                                                 cpsz = 0;
2246                                                 break;
2247                                         }
2248                                         if (cpsz == 0) {
2249                                                 break;
2250                                         }
2251                                         if (left < cpsz) {
2252                                                 /* not enough room. */
2253                                                 break;
2254                                         }
2255 #if defined(INET) && defined(INET6)
2256                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2257                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2258                                                 /* Must map the address */
2259                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2260                                                     (struct sockaddr_in6 *)addr);
2261                                         } else {
2262                                                 memcpy(addr, &net->ro._l_addr, cpsz);
2263                                         }
2264 #else
2265                                         memcpy(addr, &net->ro._l_addr, cpsz);
2266 #endif
2267                                         ((struct sockaddr_in *)addr)->sin_port = stcb->rport;
2268
2269                                         addr = (struct sockaddr *)((caddr_t)addr + cpsz);
2270                                         left -= cpsz;
2271                                         *optsize += cpsz;
2272                                 }
2273                                 SCTP_TCB_UNLOCK(stcb);
2274                         } else {
2275                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2276                                     (saddr->sget_assoc_id <= SCTP_ALL_ASSOC)) {
2277                                         error = EINVAL;
2278                                 } else {
2279                                         error = ENOENT;
2280                                 }
2281                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
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                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2294                             ((saddr->sget_assoc_id == SCTP_CURRENT_ASSOC) ||
2295                             (saddr->sget_assoc_id == SCTP_ALL_ASSOC))) {
2296                                 error = EINVAL;
2297                         } else {
2298                                 limit = *optsize - offsetof(struct sctp_getaddresses, addr);
2299                                 actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
2300                                 *optsize = offsetof(struct sctp_getaddresses, addr) + actual;
2301                         }
2302                         if (stcb != NULL) {
2303                                 SCTP_TCB_UNLOCK(stcb);
2304                         }
2305                         break;
2306                 }
2307         case SCTP_PEER_ADDR_PARAMS:
2308                 {
2309                         struct sctp_paddrparams *paddrp;
2310                         struct sctp_nets *net;
2311                         struct sockaddr *addr;
2312 #if defined(INET) && defined(INET6)
2313                         struct sockaddr_in sin_store;
2314 #endif
2315
2316                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2317                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2318
2319 #if defined(INET) && defined(INET6)
2320                         if (paddrp->spp_address.ss_family == AF_INET6) {
2321                                 struct sockaddr_in6 *sin6;
2322
2323                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2324                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2325                                         in6_sin6_2_sin(&sin_store, sin6);
2326                                         addr = (struct sockaddr *)&sin_store;
2327                                 } else {
2328                                         addr = (struct sockaddr *)&paddrp->spp_address;
2329                                 }
2330                         } else {
2331                                 addr = (struct sockaddr *)&paddrp->spp_address;
2332                         }
2333 #else
2334                         addr = (struct sockaddr *)&paddrp->spp_address;
2335 #endif
2336                         if (stcb != NULL) {
2337                                 net = sctp_findnet(stcb, addr);
2338                         } else {
2339                                 /*
2340                                  * We increment here since
2341                                  * sctp_findassociation_ep_addr() wil do a
2342                                  * decrement if it finds the stcb as long as
2343                                  * the locked tcb (last argument) is NOT a
2344                                  * TCB.. aka NULL.
2345                                  */
2346                                 net = NULL;
2347                                 SCTP_INP_INCR_REF(inp);
2348                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2349                                 if (stcb == NULL) {
2350                                         SCTP_INP_DECR_REF(inp);
2351                                 }
2352                         }
2353                         if ((stcb != NULL) && (net == NULL)) {
2354 #ifdef INET
2355                                 if (addr->sa_family == AF_INET) {
2356                                         struct sockaddr_in *sin;
2357
2358                                         sin = (struct sockaddr_in *)addr;
2359                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2360                                                 error = EINVAL;
2361                                                 SCTP_TCB_UNLOCK(stcb);
2362                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2363                                                 break;
2364                                         }
2365                                 } else
2366 #endif
2367 #ifdef INET6
2368                                 if (addr->sa_family == AF_INET6) {
2369                                         struct sockaddr_in6 *sin6;
2370
2371                                         sin6 = (struct sockaddr_in6 *)addr;
2372                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2373                                                 error = EINVAL;
2374                                                 SCTP_TCB_UNLOCK(stcb);
2375                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2376                                                 break;
2377                                         }
2378                                 } else
2379 #endif
2380                                 {
2381                                         error = EAFNOSUPPORT;
2382                                         SCTP_TCB_UNLOCK(stcb);
2383                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2384                                         break;
2385                                 }
2386                         }
2387
2388                         if (stcb != NULL) {
2389                                 /* Applies to the specific association */
2390                                 paddrp->spp_flags = 0;
2391                                 if (net != NULL) {
2392                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2393                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2394                                         paddrp->spp_pathmtu = net->mtu;
2395                                         switch (net->ro._l_addr.sa.sa_family) {
2396 #ifdef INET
2397                                         case AF_INET:
2398                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2399                                                 break;
2400 #endif
2401 #ifdef INET6
2402                                         case AF_INET6:
2403                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2404                                                 break;
2405 #endif
2406                                         default:
2407                                                 break;
2408                                         }
2409                                         /* get flags for HB */
2410                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2411                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2412                                         } else {
2413                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2414                                         }
2415                                         /* get flags for PMTU */
2416                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2417                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2418                                         } else {
2419                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2420                                         }
2421                                         if (net->dscp & 0x01) {
2422                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2423                                                 paddrp->spp_flags |= SPP_DSCP;
2424                                         }
2425 #ifdef INET6
2426                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2427                                             (net->flowlabel & 0x80000000)) {
2428                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2429                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2430                                         }
2431 #endif
2432                                 } else {
2433                                         /*
2434                                          * No destination so return default
2435                                          * value
2436                                          */
2437                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2438                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2439                                         if (stcb->asoc.default_dscp & 0x01) {
2440                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2441                                                 paddrp->spp_flags |= SPP_DSCP;
2442                                         }
2443 #ifdef INET6
2444                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2445                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2446                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2447                                         }
2448 #endif
2449                                         /* default settings should be these */
2450                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2451                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2452                                         } else {
2453                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2454                                         }
2455                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2456                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2457                                         } else {
2458                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2459                                         }
2460                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2461                                 }
2462                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2463                                 SCTP_TCB_UNLOCK(stcb);
2464                         } else {
2465                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2466                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2467                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2468                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2469                                         /* Use endpoint defaults */
2470                                         SCTP_INP_RLOCK(inp);
2471                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2472                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2473                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2474                                         /* get inp's default */
2475                                         if (inp->sctp_ep.default_dscp & 0x01) {
2476                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2477                                                 paddrp->spp_flags |= SPP_DSCP;
2478                                         }
2479 #ifdef INET6
2480                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2481                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2482                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2483                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2484                                         }
2485 #endif
2486                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2487
2488                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2489                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2490                                         } else {
2491                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2492                                         }
2493                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2494                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2495                                         } else {
2496                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2497                                         }
2498                                         SCTP_INP_RUNLOCK(inp);
2499                                 } else {
2500                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2501                                         error = EINVAL;
2502                                 }
2503                         }
2504                         if (error == 0) {
2505                                 *optsize = sizeof(struct sctp_paddrparams);
2506                         }
2507                         break;
2508                 }
2509         case SCTP_GET_PEER_ADDR_INFO:
2510                 {
2511                         struct sctp_paddrinfo *paddri;
2512                         struct sctp_nets *net;
2513                         struct sockaddr *addr;
2514 #if defined(INET) && defined(INET6)
2515                         struct sockaddr_in sin_store;
2516 #endif
2517
2518                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2519                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2520
2521 #if defined(INET) && defined(INET6)
2522                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2523                                 struct sockaddr_in6 *sin6;
2524
2525                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2526                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2527                                         in6_sin6_2_sin(&sin_store, sin6);
2528                                         addr = (struct sockaddr *)&sin_store;
2529                                 } else {
2530                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2531                                 }
2532                         } else {
2533                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2534                         }
2535 #else
2536                         addr = (struct sockaddr *)&paddri->spinfo_address;
2537 #endif
2538                         if (stcb != NULL) {
2539                                 net = sctp_findnet(stcb, addr);
2540                         } else {
2541                                 /*
2542                                  * We increment here since
2543                                  * sctp_findassociation_ep_addr() wil do a
2544                                  * decrement if it finds the stcb as long as
2545                                  * the locked tcb (last argument) is NOT a
2546                                  * TCB.. aka NULL.
2547                                  */
2548                                 net = NULL;
2549                                 SCTP_INP_INCR_REF(inp);
2550                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2551                                 if (stcb == NULL) {
2552                                         SCTP_INP_DECR_REF(inp);
2553                                 }
2554                         }
2555
2556                         if ((stcb != NULL) && (net != NULL)) {
2557                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2558                                         /* It's unconfirmed */
2559                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2560                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2561                                         /* It's active */
2562                                         paddri->spinfo_state = SCTP_ACTIVE;
2563                                 } else {
2564                                         /* It's inactive */
2565                                         paddri->spinfo_state = SCTP_INACTIVE;
2566                                 }
2567                                 paddri->spinfo_cwnd = net->cwnd;
2568                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2569                                 paddri->spinfo_rto = net->RTO;
2570                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2571                                 paddri->spinfo_mtu = net->mtu;
2572                                 switch (addr->sa_family) {
2573 #if defined(INET)
2574                                 case AF_INET:
2575                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2576                                         break;
2577 #endif
2578 #if defined(INET6)
2579                                 case AF_INET6:
2580                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2581                                         break;
2582 #endif
2583                                 default:
2584                                         break;
2585                                 }
2586                                 SCTP_TCB_UNLOCK(stcb);
2587                                 *optsize = sizeof(struct sctp_paddrinfo);
2588                         } else {
2589                                 if (stcb != NULL) {
2590                                         SCTP_TCB_UNLOCK(stcb);
2591                                 }
2592                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2593                                 error = ENOENT;
2594                         }
2595                         break;
2596                 }
2597         case SCTP_PCB_STATUS:
2598                 {
2599                         struct sctp_pcbinfo *spcb;
2600
2601                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2602                         sctp_fill_pcbinfo(spcb);
2603                         *optsize = sizeof(struct sctp_pcbinfo);
2604                         break;
2605                 }
2606         case SCTP_STATUS:
2607                 {
2608                         struct sctp_nets *net;
2609                         struct sctp_status *sstat;
2610
2611                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2612                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2613
2614                         if (stcb == NULL) {
2615                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2616                                 error = EINVAL;
2617                                 break;
2618                         }
2619                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2620                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2621                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2622                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2623                         /*
2624                          * We can't include chunks that have been passed to
2625                          * the socket layer. Only things in queue.
2626                          */
2627                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2628                             stcb->asoc.cnt_on_all_streams);
2629                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2630                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2631                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb);
2632                         net = stcb->asoc.primary_destination;
2633                         if (net != NULL) {
2634                                 memcpy(&sstat->sstat_primary.spinfo_address,
2635                                     &net->ro._l_addr,
2636                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2637                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2638                                 /*
2639                                  * Again the user can get info from
2640                                  * sctp_constants.h for what the state of
2641                                  * the network is.
2642                                  */
2643                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2644                                         /* It's unconfirmed */
2645                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2646                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2647                                         /* It's active */
2648                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2649                                 } else {
2650                                         /* It's inactive */
2651                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2652                                 }
2653                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2654                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2655                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2656                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2657                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2658 #if defined(INET)
2659                                 case AF_INET:
2660                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2661                                         break;
2662 #endif
2663 #if defined(INET6)
2664                                 case AF_INET6:
2665                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2666                                         break;
2667 #endif
2668                                 default:
2669                                         break;
2670                                 }
2671                         } else {
2672                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2673                         }
2674                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2675                         SCTP_TCB_UNLOCK(stcb);
2676                         *optsize = sizeof(struct sctp_status);
2677                         break;
2678                 }
2679         case SCTP_RTOINFO:
2680                 {
2681                         struct sctp_rtoinfo *srto;
2682
2683                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2684                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2685
2686                         if (stcb) {
2687                                 srto->srto_initial = stcb->asoc.initial_rto;
2688                                 srto->srto_max = stcb->asoc.maxrto;
2689                                 srto->srto_min = stcb->asoc.minrto;
2690                                 SCTP_TCB_UNLOCK(stcb);
2691                         } else {
2692                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2693                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2694                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2695                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2696                                         SCTP_INP_RLOCK(inp);
2697                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2698                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2699                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2700                                         SCTP_INP_RUNLOCK(inp);
2701                                 } else {
2702                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2703                                         error = EINVAL;
2704                                 }
2705                         }
2706                         if (error == 0) {
2707                                 *optsize = sizeof(struct sctp_rtoinfo);
2708                         }
2709                         break;
2710                 }
2711         case SCTP_TIMEOUTS:
2712                 {
2713                         struct sctp_timeouts *stimo;
2714
2715                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2716                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2717
2718                         if (stcb) {
2719                                 stimo->stimo_init = stcb->asoc.timoinit;
2720                                 stimo->stimo_data = stcb->asoc.timodata;
2721                                 stimo->stimo_sack = stcb->asoc.timosack;
2722                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2723                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2724                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2725                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2726                                 SCTP_TCB_UNLOCK(stcb);
2727                                 *optsize = sizeof(struct sctp_timeouts);
2728                         } else {
2729                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2730                                 error = EINVAL;
2731                         }
2732                         break;
2733                 }
2734         case SCTP_ASSOCINFO:
2735                 {
2736                         struct sctp_assocparams *sasoc;
2737
2738                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2739                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2740
2741                         if (stcb) {
2742                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2743                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2744                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2745                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2746                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2747                                 SCTP_TCB_UNLOCK(stcb);
2748                         } else {
2749                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2750                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2751                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2752                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2753                                         SCTP_INP_RLOCK(inp);
2754                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2755                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2756                                         sasoc->sasoc_number_peer_destinations = 0;
2757                                         sasoc->sasoc_peer_rwnd = 0;
2758                                         sasoc->sasoc_local_rwnd = (uint32_t)sbspace(&inp->sctp_socket->so_rcv);
2759                                         SCTP_INP_RUNLOCK(inp);
2760                                 } else {
2761                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2762                                         error = EINVAL;
2763                                 }
2764                         }
2765                         if (error == 0) {
2766                                 *optsize = sizeof(struct sctp_assocparams);
2767                         }
2768                         break;
2769                 }
2770         case SCTP_DEFAULT_SEND_PARAM:
2771                 {
2772                         struct sctp_sndrcvinfo *s_info;
2773
2774                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2775                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2776
2777                         if (stcb) {
2778                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2779                                 SCTP_TCB_UNLOCK(stcb);
2780                         } else {
2781                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2782                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2783                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2784                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2785                                         SCTP_INP_RLOCK(inp);
2786                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2787                                         SCTP_INP_RUNLOCK(inp);
2788                                 } else {
2789                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2790                                         error = EINVAL;
2791                                 }
2792                         }
2793                         if (error == 0) {
2794                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2795                         }
2796                         break;
2797                 }
2798         case SCTP_INITMSG:
2799                 {
2800                         struct sctp_initmsg *sinit;
2801
2802                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2803                         SCTP_INP_RLOCK(inp);
2804                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2805                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2806                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2807                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2808                         SCTP_INP_RUNLOCK(inp);
2809                         *optsize = sizeof(struct sctp_initmsg);
2810                         break;
2811                 }
2812         case SCTP_PRIMARY_ADDR:
2813                 /* we allow a "get" operation on this */
2814                 {
2815                         struct sctp_setprim *ssp;
2816
2817                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2818                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2819
2820                         if (stcb) {
2821                                 union sctp_sockstore *addr;
2822
2823                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2824                                 switch (addr->sa.sa_family) {
2825 #ifdef INET
2826                                 case AF_INET:
2827 #ifdef INET6
2828                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2829                                                 in6_sin_2_v4mapsin6(&addr->sin,
2830                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2831                                         } else {
2832                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2833                                         }
2834 #else
2835                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2836 #endif
2837                                         break;
2838 #endif
2839 #ifdef INET6
2840                                 case AF_INET6:
2841                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2842                                         break;
2843 #endif
2844                                 default:
2845                                         break;
2846                                 }
2847                                 SCTP_TCB_UNLOCK(stcb);
2848                                 *optsize = sizeof(struct sctp_setprim);
2849                         } else {
2850                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2851                                 error = EINVAL;
2852                         }
2853                         break;
2854                 }
2855         case SCTP_HMAC_IDENT:
2856                 {
2857                         struct sctp_hmacalgo *shmac;
2858                         sctp_hmaclist_t *hmaclist;
2859                         size_t size;
2860                         int i;
2861
2862                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2863
2864                         SCTP_INP_RLOCK(inp);
2865                         hmaclist = inp->sctp_ep.local_hmacs;
2866                         if (hmaclist == NULL) {
2867                                 /* no HMACs to return */
2868                                 *optsize = sizeof(*shmac);
2869                                 SCTP_INP_RUNLOCK(inp);
2870                                 break;
2871                         }
2872                         /* is there room for all of the hmac ids? */
2873                         size = sizeof(*shmac) + (hmaclist->num_algo *
2874                             sizeof(shmac->shmac_idents[0]));
2875                         if (*optsize < size) {
2876                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2877                                 error = EINVAL;
2878                                 SCTP_INP_RUNLOCK(inp);
2879                                 break;
2880                         }
2881                         /* copy in the list */
2882                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2883                         for (i = 0; i < hmaclist->num_algo; i++) {
2884                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2885                         }
2886                         SCTP_INP_RUNLOCK(inp);
2887                         *optsize = size;
2888                         break;
2889                 }
2890         case SCTP_AUTH_ACTIVE_KEY:
2891                 {
2892                         struct sctp_authkeyid *scact;
2893
2894                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2895                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2896
2897                         if (stcb) {
2898                                 /* get the active key on the assoc */
2899                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2900                                 SCTP_TCB_UNLOCK(stcb);
2901                         } else {
2902                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2903                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2904                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2905                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2906                                         /* get the endpoint active key */
2907                                         SCTP_INP_RLOCK(inp);
2908                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2909                                         SCTP_INP_RUNLOCK(inp);
2910                                 } else {
2911                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2912                                         error = EINVAL;
2913                                 }
2914                         }
2915                         if (error == 0) {
2916                                 *optsize = sizeof(struct sctp_authkeyid);
2917                         }
2918                         break;
2919                 }
2920         case SCTP_LOCAL_AUTH_CHUNKS:
2921                 {
2922                         struct sctp_authchunks *sac;
2923                         sctp_auth_chklist_t *chklist = NULL;
2924                         size_t size = 0;
2925
2926                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2927                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2928
2929                         if (stcb) {
2930                                 /* get off the assoc */
2931                                 chklist = stcb->asoc.local_auth_chunks;
2932                                 /* is there enough space? */
2933                                 size = sctp_auth_get_chklist_size(chklist);
2934                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2935                                         error = EINVAL;
2936                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2937                                 } else {
2938                                         /* copy in the chunks */
2939                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2940                                         sac->gauth_number_of_chunks = (uint32_t)size;
2941                                         *optsize = sizeof(struct sctp_authchunks) + size;
2942                                 }
2943                                 SCTP_TCB_UNLOCK(stcb);
2944                         } else {
2945                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2946                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2947                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2948                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2949                                         /* get off the endpoint */
2950                                         SCTP_INP_RLOCK(inp);
2951                                         chklist = inp->sctp_ep.local_auth_chunks;
2952                                         /* is there enough space? */
2953                                         size = sctp_auth_get_chklist_size(chklist);
2954                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2955                                                 error = EINVAL;
2956                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2957                                         } else {
2958                                                 /* copy in the chunks */
2959                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2960                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2961                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2962                                         }
2963                                         SCTP_INP_RUNLOCK(inp);
2964                                 } else {
2965                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2966                                         error = EINVAL;
2967                                 }
2968                         }
2969                         break;
2970                 }
2971         case SCTP_PEER_AUTH_CHUNKS:
2972                 {
2973                         struct sctp_authchunks *sac;
2974                         sctp_auth_chklist_t *chklist = NULL;
2975                         size_t size = 0;
2976
2977                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2978                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2979
2980                         if (stcb) {
2981                                 /* get off the assoc */
2982                                 chklist = stcb->asoc.peer_auth_chunks;
2983                                 /* is there enough space? */
2984                                 size = sctp_auth_get_chklist_size(chklist);
2985                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2986                                         error = EINVAL;
2987                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2988                                 } else {
2989                                         /* copy in the chunks */
2990                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2991                                         sac->gauth_number_of_chunks = (uint32_t)size;
2992                                         *optsize = sizeof(struct sctp_authchunks) + size;
2993                                 }
2994                                 SCTP_TCB_UNLOCK(stcb);
2995                         } else {
2996                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2997                                 error = ENOENT;
2998                         }
2999                         break;
3000                 }
3001         case SCTP_EVENT:
3002                 {
3003                         struct sctp_event *event;
3004                         uint32_t event_type;
3005
3006                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3007                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3008
3009                         switch (event->se_type) {
3010                         case SCTP_ASSOC_CHANGE:
3011                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3012                                 break;
3013                         case SCTP_PEER_ADDR_CHANGE:
3014                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3015                                 break;
3016                         case SCTP_REMOTE_ERROR:
3017                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3018                                 break;
3019                         case SCTP_SEND_FAILED:
3020                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3021                                 break;
3022                         case SCTP_SHUTDOWN_EVENT:
3023                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3024                                 break;
3025                         case SCTP_ADAPTATION_INDICATION:
3026                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3027                                 break;
3028                         case SCTP_PARTIAL_DELIVERY_EVENT:
3029                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3030                                 break;
3031                         case SCTP_AUTHENTICATION_EVENT:
3032                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3033                                 break;
3034                         case SCTP_STREAM_RESET_EVENT:
3035                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3036                                 break;
3037                         case SCTP_SENDER_DRY_EVENT:
3038                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3039                                 break;
3040                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3041                                 event_type = 0;
3042                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3043                                 error = ENOTSUP;
3044                                 break;
3045                         case SCTP_ASSOC_RESET_EVENT:
3046                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3047                                 break;
3048                         case SCTP_STREAM_CHANGE_EVENT:
3049                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3050                                 break;
3051                         case SCTP_SEND_FAILED_EVENT:
3052                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3053                                 break;
3054                         default:
3055                                 event_type = 0;
3056                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3057                                 error = EINVAL;
3058                                 break;
3059                         }
3060                         if (event_type > 0) {
3061                                 if (stcb) {
3062                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3063                                 } else {
3064                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3065                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3066                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3067                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3068                                                 SCTP_INP_RLOCK(inp);
3069                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3070                                                 SCTP_INP_RUNLOCK(inp);
3071                                         } else {
3072                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3073                                                 error = EINVAL;
3074                                         }
3075                                 }
3076                         }
3077                         if (stcb != NULL) {
3078                                 SCTP_TCB_UNLOCK(stcb);
3079                         }
3080                         if (error == 0) {
3081                                 *optsize = sizeof(struct sctp_event);
3082                         }
3083                         break;
3084                 }
3085         case SCTP_RECVRCVINFO:
3086                 if (*optsize < sizeof(int)) {
3087                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3088                         error = EINVAL;
3089                 } else {
3090                         SCTP_INP_RLOCK(inp);
3091                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3092                         SCTP_INP_RUNLOCK(inp);
3093                         *optsize = sizeof(int);
3094                 }
3095                 break;
3096         case SCTP_RECVNXTINFO:
3097                 if (*optsize < sizeof(int)) {
3098                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3099                         error = EINVAL;
3100                 } else {
3101                         SCTP_INP_RLOCK(inp);
3102                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3103                         SCTP_INP_RUNLOCK(inp);
3104                         *optsize = sizeof(int);
3105                 }
3106                 break;
3107         case SCTP_DEFAULT_SNDINFO:
3108                 {
3109                         struct sctp_sndinfo *info;
3110
3111                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3112                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3113
3114                         if (stcb) {
3115                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3116                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3117                                 info->snd_flags &= 0xfff0;
3118                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3119                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3120                                 SCTP_TCB_UNLOCK(stcb);
3121                         } else {
3122                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3123                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3124                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3125                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3126                                         SCTP_INP_RLOCK(inp);
3127                                         info->snd_sid = inp->def_send.sinfo_stream;
3128                                         info->snd_flags = inp->def_send.sinfo_flags;
3129                                         info->snd_flags &= 0xfff0;
3130                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3131                                         info->snd_context = inp->def_send.sinfo_context;
3132                                         SCTP_INP_RUNLOCK(inp);
3133                                 } else {
3134                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3135                                         error = EINVAL;
3136                                 }
3137                         }
3138                         if (error == 0) {
3139                                 *optsize = sizeof(struct sctp_sndinfo);
3140                         }
3141                         break;
3142                 }
3143         case SCTP_DEFAULT_PRINFO:
3144                 {
3145                         struct sctp_default_prinfo *info;
3146
3147                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3148                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3149
3150                         if (stcb) {
3151                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3152                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3153                                 SCTP_TCB_UNLOCK(stcb);
3154                         } else {
3155                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3156                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3157                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3158                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3159                                         SCTP_INP_RLOCK(inp);
3160                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3161                                         info->pr_value = inp->def_send.sinfo_timetolive;
3162                                         SCTP_INP_RUNLOCK(inp);
3163                                 } else {
3164                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3165                                         error = EINVAL;
3166                                 }
3167                         }
3168                         if (error == 0) {
3169                                 *optsize = sizeof(struct sctp_default_prinfo);
3170                         }
3171                         break;
3172                 }
3173         case SCTP_PEER_ADDR_THLDS:
3174                 {
3175                         struct sctp_paddrthlds *thlds;
3176                         struct sctp_nets *net;
3177                         struct sockaddr *addr;
3178 #if defined(INET) && defined(INET6)
3179                         struct sockaddr_in sin_store;
3180 #endif
3181
3182                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3183                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3184
3185 #if defined(INET) && defined(INET6)
3186                         if (thlds->spt_address.ss_family == AF_INET6) {
3187                                 struct sockaddr_in6 *sin6;
3188
3189                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3190                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3191                                         in6_sin6_2_sin(&sin_store, sin6);
3192                                         addr = (struct sockaddr *)&sin_store;
3193                                 } else {
3194                                         addr = (struct sockaddr *)&thlds->spt_address;
3195                                 }
3196                         } else {
3197                                 addr = (struct sockaddr *)&thlds->spt_address;
3198                         }
3199 #else
3200                         addr = (struct sockaddr *)&thlds->spt_address;
3201 #endif
3202                         if (stcb != NULL) {
3203                                 net = sctp_findnet(stcb, addr);
3204                         } else {
3205                                 /*
3206                                  * We increment here since
3207                                  * sctp_findassociation_ep_addr() wil do a
3208                                  * decrement if it finds the stcb as long as
3209                                  * the locked tcb (last argument) is NOT a
3210                                  * TCB.. aka NULL.
3211                                  */
3212                                 net = NULL;
3213                                 SCTP_INP_INCR_REF(inp);
3214                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3215                                 if (stcb == NULL) {
3216                                         SCTP_INP_DECR_REF(inp);
3217                                 }
3218                         }
3219                         if ((stcb != NULL) && (net == NULL)) {
3220 #ifdef INET
3221                                 if (addr->sa_family == AF_INET) {
3222                                         struct sockaddr_in *sin;
3223
3224                                         sin = (struct sockaddr_in *)addr;
3225                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3226                                                 error = EINVAL;
3227                                                 SCTP_TCB_UNLOCK(stcb);
3228                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3229                                                 break;
3230                                         }
3231                                 } else
3232 #endif
3233 #ifdef INET6
3234                                 if (addr->sa_family == AF_INET6) {
3235                                         struct sockaddr_in6 *sin6;
3236
3237                                         sin6 = (struct sockaddr_in6 *)addr;
3238                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3239                                                 error = EINVAL;
3240                                                 SCTP_TCB_UNLOCK(stcb);
3241                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3242                                                 break;
3243                                         }
3244                                 } else
3245 #endif
3246                                 {
3247                                         error = EAFNOSUPPORT;
3248                                         SCTP_TCB_UNLOCK(stcb);
3249                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3250                                         break;
3251                                 }
3252                         }
3253
3254                         if (stcb != NULL) {
3255                                 if (net != NULL) {
3256                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3257                                         thlds->spt_pathpfthld = net->pf_threshold;
3258                                         thlds->spt_pathcpthld = 0xffff;
3259                                 } else {
3260                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3261                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3262                                         thlds->spt_pathcpthld = 0xffff;
3263                                 }
3264                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3265                                 SCTP_TCB_UNLOCK(stcb);
3266                         } else {
3267                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3268                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3269                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3270                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3271                                         /* Use endpoint defaults */
3272                                         SCTP_INP_RLOCK(inp);
3273                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3274                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3275                                         thlds->spt_pathcpthld = 0xffff;
3276                                         SCTP_INP_RUNLOCK(inp);
3277                                 } else {
3278                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3279                                         error = EINVAL;
3280                                 }
3281                         }
3282                         if (error == 0) {
3283                                 *optsize = sizeof(struct sctp_paddrthlds);
3284                         }
3285                         break;
3286                 }
3287         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3288                 {
3289                         struct sctp_udpencaps *encaps;
3290                         struct sctp_nets *net;
3291                         struct sockaddr *addr;
3292 #if defined(INET) && defined(INET6)
3293                         struct sockaddr_in sin_store;
3294 #endif
3295
3296                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3297                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3298
3299 #if defined(INET) && defined(INET6)
3300                         if (encaps->sue_address.ss_family == AF_INET6) {
3301                                 struct sockaddr_in6 *sin6;
3302
3303                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3304                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3305                                         in6_sin6_2_sin(&sin_store, sin6);
3306                                         addr = (struct sockaddr *)&sin_store;
3307                                 } else {
3308                                         addr = (struct sockaddr *)&encaps->sue_address;
3309                                 }
3310                         } else {
3311                                 addr = (struct sockaddr *)&encaps->sue_address;
3312                         }
3313 #else
3314                         addr = (struct sockaddr *)&encaps->sue_address;
3315 #endif
3316                         if (stcb) {
3317                                 net = sctp_findnet(stcb, addr);
3318                         } else {
3319                                 /*
3320                                  * We increment here since
3321                                  * sctp_findassociation_ep_addr() wil do a
3322                                  * decrement if it finds the stcb as long as
3323                                  * the locked tcb (last argument) is NOT a
3324                                  * TCB.. aka NULL.
3325                                  */
3326                                 net = NULL;
3327                                 SCTP_INP_INCR_REF(inp);
3328                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3329                                 if (stcb == NULL) {
3330                                         SCTP_INP_DECR_REF(inp);
3331                                 }
3332                         }
3333                         if ((stcb != NULL) && (net == NULL)) {
3334 #ifdef INET
3335                                 if (addr->sa_family == AF_INET) {
3336                                         struct sockaddr_in *sin;
3337
3338                                         sin = (struct sockaddr_in *)addr;
3339                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3340                                                 error = EINVAL;
3341                                                 SCTP_TCB_UNLOCK(stcb);
3342                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3343                                                 break;
3344                                         }
3345                                 } else
3346 #endif
3347 #ifdef INET6
3348                                 if (addr->sa_family == AF_INET6) {
3349                                         struct sockaddr_in6 *sin6;
3350
3351                                         sin6 = (struct sockaddr_in6 *)addr;
3352                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3353                                                 error = EINVAL;
3354                                                 SCTP_TCB_UNLOCK(stcb);
3355                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3356                                                 break;
3357                                         }
3358                                 } else
3359 #endif
3360                                 {
3361                                         error = EAFNOSUPPORT;
3362                                         SCTP_TCB_UNLOCK(stcb);
3363                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3364                                         break;
3365                                 }
3366                         }
3367
3368                         if (stcb != NULL) {
3369                                 if (net) {
3370                                         encaps->sue_port = net->port;
3371                                 } else {
3372                                         encaps->sue_port = stcb->asoc.port;
3373                                 }
3374                                 SCTP_TCB_UNLOCK(stcb);
3375                         } else {
3376                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3377                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3378                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3379                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3380                                         SCTP_INP_RLOCK(inp);
3381                                         encaps->sue_port = inp->sctp_ep.port;
3382                                         SCTP_INP_RUNLOCK(inp);
3383                                 } else {
3384                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3385                                         error = EINVAL;
3386                                 }
3387                         }
3388                         if (error == 0) {
3389                                 *optsize = sizeof(struct sctp_udpencaps);
3390                         }
3391                         break;
3392                 }
3393         case SCTP_ECN_SUPPORTED:
3394                 {
3395                         struct sctp_assoc_value *av;
3396
3397                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3398                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3399
3400                         if (stcb) {
3401                                 av->assoc_value = stcb->asoc.ecn_supported;
3402                                 SCTP_TCB_UNLOCK(stcb);
3403                         } else {
3404                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3405                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3406                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3407                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3408                                         SCTP_INP_RLOCK(inp);
3409                                         av->assoc_value = inp->ecn_supported;
3410                                         SCTP_INP_RUNLOCK(inp);
3411                                 } else {
3412                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3413                                         error = EINVAL;
3414                                 }
3415                         }
3416                         if (error == 0) {
3417                                 *optsize = sizeof(struct sctp_assoc_value);
3418                         }
3419                         break;
3420                 }
3421         case SCTP_PR_SUPPORTED:
3422                 {
3423                         struct sctp_assoc_value *av;
3424
3425                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3426                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3427
3428                         if (stcb) {
3429                                 av->assoc_value = stcb->asoc.prsctp_supported;
3430                                 SCTP_TCB_UNLOCK(stcb);
3431                         } else {
3432                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3433                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3434                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3435                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3436                                         SCTP_INP_RLOCK(inp);
3437                                         av->assoc_value = inp->prsctp_supported;
3438                                         SCTP_INP_RUNLOCK(inp);
3439                                 } else {
3440                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3441                                         error = EINVAL;
3442                                 }
3443                         }
3444                         if (error == 0) {
3445                                 *optsize = sizeof(struct sctp_assoc_value);
3446                         }
3447                         break;
3448                 }
3449         case SCTP_AUTH_SUPPORTED:
3450                 {
3451                         struct sctp_assoc_value *av;
3452
3453                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3454                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3455
3456                         if (stcb) {
3457                                 av->assoc_value = stcb->asoc.auth_supported;
3458                                 SCTP_TCB_UNLOCK(stcb);
3459                         } else {
3460                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3461                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3462                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3463                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3464                                         SCTP_INP_RLOCK(inp);
3465                                         av->assoc_value = inp->auth_supported;
3466                                         SCTP_INP_RUNLOCK(inp);
3467                                 } else {
3468                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3469                                         error = EINVAL;
3470                                 }
3471                         }
3472                         if (error == 0) {
3473                                 *optsize = sizeof(struct sctp_assoc_value);
3474                         }
3475                         break;
3476                 }
3477         case SCTP_ASCONF_SUPPORTED:
3478                 {
3479                         struct sctp_assoc_value *av;
3480
3481                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3482                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3483
3484                         if (stcb) {
3485                                 av->assoc_value = stcb->asoc.asconf_supported;
3486                                 SCTP_TCB_UNLOCK(stcb);
3487                         } else {
3488                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3489                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3490                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3491                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3492                                         SCTP_INP_RLOCK(inp);
3493                                         av->assoc_value = inp->asconf_supported;
3494                                         SCTP_INP_RUNLOCK(inp);
3495                                 } else {
3496                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3497                                         error = EINVAL;
3498                                 }
3499                         }
3500                         if (error == 0) {
3501                                 *optsize = sizeof(struct sctp_assoc_value);
3502                         }
3503                         break;
3504                 }
3505         case SCTP_RECONFIG_SUPPORTED:
3506                 {
3507                         struct sctp_assoc_value *av;
3508
3509                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3510                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3511
3512                         if (stcb) {
3513                                 av->assoc_value = stcb->asoc.reconfig_supported;
3514                                 SCTP_TCB_UNLOCK(stcb);
3515                         } else {
3516                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3517                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3518                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3519                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3520                                         SCTP_INP_RLOCK(inp);
3521                                         av->assoc_value = inp->reconfig_supported;
3522                                         SCTP_INP_RUNLOCK(inp);
3523                                 } else {
3524                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3525                                         error = EINVAL;
3526                                 }
3527                         }
3528                         if (error == 0) {
3529                                 *optsize = sizeof(struct sctp_assoc_value);
3530                         }
3531                         break;
3532                 }
3533         case SCTP_NRSACK_SUPPORTED:
3534                 {
3535                         struct sctp_assoc_value *av;
3536
3537                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3538                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3539
3540                         if (stcb) {
3541                                 av->assoc_value = stcb->asoc.nrsack_supported;
3542                                 SCTP_TCB_UNLOCK(stcb);
3543                         } else {
3544                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3545                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3546                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3547                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3548                                         SCTP_INP_RLOCK(inp);
3549                                         av->assoc_value = inp->nrsack_supported;
3550                                         SCTP_INP_RUNLOCK(inp);
3551                                 } else {
3552                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3553                                         error = EINVAL;
3554                                 }
3555                         }
3556                         if (error == 0) {
3557                                 *optsize = sizeof(struct sctp_assoc_value);
3558                         }
3559                         break;
3560                 }
3561         case SCTP_PKTDROP_SUPPORTED:
3562                 {
3563                         struct sctp_assoc_value *av;
3564
3565                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3566                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3567
3568                         if (stcb) {
3569                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3570                                 SCTP_TCB_UNLOCK(stcb);
3571                         } else {
3572                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3573                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3574                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3575                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3576                                         SCTP_INP_RLOCK(inp);
3577                                         av->assoc_value = inp->pktdrop_supported;
3578                                         SCTP_INP_RUNLOCK(inp);
3579                                 } else {
3580                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3581                                         error = EINVAL;
3582                                 }
3583                         }
3584                         if (error == 0) {
3585                                 *optsize = sizeof(struct sctp_assoc_value);
3586                         }
3587                         break;
3588                 }
3589         case SCTP_ENABLE_STREAM_RESET:
3590                 {
3591                         struct sctp_assoc_value *av;
3592
3593                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3594                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3595
3596                         if (stcb) {
3597                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3598                                 SCTP_TCB_UNLOCK(stcb);
3599                         } else {
3600                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3601                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3602                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3603                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3604                                         SCTP_INP_RLOCK(inp);
3605                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3606                                         SCTP_INP_RUNLOCK(inp);
3607                                 } else {
3608                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3609                                         error = EINVAL;
3610                                 }
3611                         }
3612                         if (error == 0) {
3613                                 *optsize = sizeof(struct sctp_assoc_value);
3614                         }
3615                         break;
3616                 }
3617         case SCTP_PR_STREAM_STATUS:
3618                 {
3619                         struct sctp_prstatus *sprstat;
3620                         uint16_t sid;
3621                         uint16_t policy;
3622
3623                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3624                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3625
3626                         sid = sprstat->sprstat_sid;
3627                         policy = sprstat->sprstat_policy;
3628 #if defined(SCTP_DETAILED_STR_STATS)
3629                         if ((stcb != NULL) &&
3630                             (sid < stcb->asoc.streamoutcnt) &&
3631                             (policy != SCTP_PR_SCTP_NONE) &&
3632                             ((policy <= SCTP_PR_SCTP_MAX) ||
3633                             (policy == SCTP_PR_SCTP_ALL))) {
3634                                 if (policy == SCTP_PR_SCTP_ALL) {
3635                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3636                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3637                                 } else {
3638                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3639                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3640                                 }
3641 #else
3642                         if ((stcb != NULL) &&
3643                             (sid < stcb->asoc.streamoutcnt) &&
3644                             (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 #endif
3648                         } else {
3649                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3650                                 error = EINVAL;
3651                         }
3652                         if (stcb != NULL) {
3653                                 SCTP_TCB_UNLOCK(stcb);
3654                         }
3655                         if (error == 0) {
3656                                 *optsize = sizeof(struct sctp_prstatus);
3657                         }
3658                         break;
3659                 }
3660         case SCTP_PR_ASSOC_STATUS:
3661                 {
3662                         struct sctp_prstatus *sprstat;
3663                         uint16_t policy;
3664
3665                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3666                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3667
3668                         policy = sprstat->sprstat_policy;
3669                         if ((stcb != NULL) &&
3670                             (policy != SCTP_PR_SCTP_NONE) &&
3671                             ((policy <= SCTP_PR_SCTP_MAX) ||
3672                             (policy == SCTP_PR_SCTP_ALL))) {
3673                                 if (policy == SCTP_PR_SCTP_ALL) {
3674                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3675                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3676                                 } else {
3677                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3678                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3679                                 }
3680                         } else {
3681                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3682                                 error = EINVAL;
3683                         }
3684                         if (stcb != NULL) {
3685                                 SCTP_TCB_UNLOCK(stcb);
3686                         }
3687                         if (error == 0) {
3688                                 *optsize = sizeof(struct sctp_prstatus);
3689                         }
3690                         break;
3691                 }
3692         case SCTP_MAX_CWND:
3693                 {
3694                         struct sctp_assoc_value *av;
3695
3696                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3697                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3698
3699                         if (stcb) {
3700                                 av->assoc_value = stcb->asoc.max_cwnd;
3701                                 SCTP_TCB_UNLOCK(stcb);
3702                         } else {
3703                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3704                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3705                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3706                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3707                                         SCTP_INP_RLOCK(inp);
3708                                         av->assoc_value = inp->max_cwnd;
3709                                         SCTP_INP_RUNLOCK(inp);
3710                                 } else {
3711                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3712                                         error = EINVAL;
3713                                 }
3714                         }
3715                         if (error == 0) {
3716                                 *optsize = sizeof(struct sctp_assoc_value);
3717                         }
3718                         break;
3719                 }
3720         default:
3721                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3722                 error = ENOPROTOOPT;
3723                 break;
3724         }                       /* end switch (sopt->sopt_name) */
3725         if (error) {
3726                 *optsize = 0;
3727         }
3728         return (error);
3729 }
3730
3731 static int
3732 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3733     void *p)
3734 {
3735         int error, set_opt;
3736         uint32_t *mopt;
3737         struct sctp_tcb *stcb = NULL;
3738         struct sctp_inpcb *inp = NULL;
3739         uint32_t vrf_id;
3740
3741         if (optval == NULL) {
3742                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3743                 return (EINVAL);
3744         }
3745         inp = (struct sctp_inpcb *)so->so_pcb;
3746         if (inp == NULL) {
3747                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3748                 return (EINVAL);
3749         }
3750         vrf_id = inp->def_vrf_id;
3751
3752         error = 0;
3753         switch (optname) {
3754         case SCTP_NODELAY:
3755         case SCTP_AUTOCLOSE:
3756         case SCTP_AUTO_ASCONF:
3757         case SCTP_EXPLICIT_EOR:
3758         case SCTP_DISABLE_FRAGMENTS:
3759         case SCTP_USE_EXT_RCVINFO:
3760         case SCTP_I_WANT_MAPPED_V4_ADDR:
3761                 /* copy in the option value */
3762                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3763                 set_opt = 0;
3764                 if (error)
3765                         break;
3766                 switch (optname) {
3767                 case SCTP_DISABLE_FRAGMENTS:
3768                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3769                         break;
3770                 case SCTP_AUTO_ASCONF:
3771                         /*
3772                          * NOTE: we don't really support this flag
3773                          */
3774                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3775                                 /* only valid for bound all sockets */
3776                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3777                                     (*mopt != 0)) {
3778                                         /* forbidden by admin */
3779                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3780                                         return (EPERM);
3781                                 }
3782                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3783                         } else {
3784                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3785                                 return (EINVAL);
3786                         }
3787                         break;
3788                 case SCTP_EXPLICIT_EOR:
3789                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3790                         break;
3791                 case SCTP_USE_EXT_RCVINFO:
3792                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3793                         break;
3794                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3795                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3796                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3797                         } else {
3798                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3799                                 return (EINVAL);
3800                         }
3801                         break;
3802                 case SCTP_NODELAY:
3803                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3804                         break;
3805                 case SCTP_AUTOCLOSE:
3806                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3807                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3808                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3809                                 return (EINVAL);
3810                         }
3811                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3812                         /*
3813                          * The value is in ticks. Note this does not effect
3814                          * old associations, only new ones.
3815                          */
3816                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3817                         break;
3818                 }
3819                 SCTP_INP_WLOCK(inp);
3820                 if (*mopt != 0) {
3821                         sctp_feature_on(inp, set_opt);
3822                 } else {
3823                         sctp_feature_off(inp, set_opt);
3824                 }
3825                 SCTP_INP_WUNLOCK(inp);
3826                 break;
3827         case SCTP_REUSE_PORT:
3828                 {
3829                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3830                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3831                                 /* Can't set it after we are bound */
3832                                 error = EINVAL;
3833                                 break;
3834                         }
3835                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3836                                 /* Can't do this for a 1-m socket */
3837                                 error = EINVAL;
3838                                 break;
3839                         }
3840                         if (optval)
3841                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3842                         else
3843                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3844                         break;
3845                 }
3846         case SCTP_PARTIAL_DELIVERY_POINT:
3847                 {
3848                         uint32_t *value;
3849
3850                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3851                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3852                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3853                                 error = EINVAL;
3854                                 break;
3855                         }
3856                         inp->partial_delivery_point = *value;
3857                         break;
3858                 }
3859         case SCTP_FRAGMENT_INTERLEAVE:
3860                 /* not yet until we re-write sctp_recvmsg() */
3861                 {
3862                         uint32_t *level;
3863
3864                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3865                         if (*level == SCTP_FRAG_LEVEL_2) {
3866                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3867                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3868                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3869                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3870                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3871                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3872                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3873                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3874
3875                         } else {
3876                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3877                                 error = EINVAL;
3878                         }
3879                         break;
3880                 }
3881         case SCTP_INTERLEAVING_SUPPORTED:
3882                 {
3883                         struct sctp_assoc_value *av;
3884
3885                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3886                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3887
3888                         if (stcb) {
3889                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3890                                 error = EINVAL;
3891                                 SCTP_TCB_UNLOCK(stcb);
3892                         } else {
3893                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3894                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3895                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3896                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3897                                         SCTP_INP_WLOCK(inp);
3898                                         if (av->assoc_value == 0) {
3899                                                 inp->idata_supported = 0;
3900                                         } else {
3901                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3902                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3903                                                         inp->idata_supported = 1;
3904                                                 } else {
3905                                                         /*
3906                                                          * Must have Frag
3907                                                          * interleave and
3908                                                          * stream interleave
3909                                                          * on
3910                                                          */
3911                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3912                                                         error = EINVAL;
3913                                                 }
3914                                         }
3915                                         SCTP_INP_WUNLOCK(inp);
3916                                 } else {
3917                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3918                                         error = EINVAL;
3919                                 }
3920                         }
3921                         break;
3922                 }
3923         case SCTP_CMT_ON_OFF:
3924                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3925                         struct sctp_assoc_value *av;
3926
3927                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3928                         if (av->assoc_value > SCTP_CMT_MAX) {
3929                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3930                                 error = EINVAL;
3931                                 break;
3932                         }
3933                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3934                         if (stcb) {
3935                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3936                                 SCTP_TCB_UNLOCK(stcb);
3937                         } else {
3938                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3939                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3940                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3941                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3942                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3943                                         SCTP_INP_WLOCK(inp);
3944                                         inp->sctp_cmt_on_off = av->assoc_value;
3945                                         SCTP_INP_WUNLOCK(inp);
3946                                 }
3947                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3948                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3949                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3950                                         SCTP_INP_RLOCK(inp);
3951                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3952                                                 SCTP_TCB_LOCK(stcb);
3953                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3954                                                 SCTP_TCB_UNLOCK(stcb);
3955                                         }
3956                                         SCTP_INP_RUNLOCK(inp);
3957                                 }
3958                         }
3959                 } else {
3960                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3961                         error = ENOPROTOOPT;
3962                 }
3963                 break;
3964         case SCTP_PLUGGABLE_CC:
3965                 {
3966                         struct sctp_assoc_value *av;
3967                         struct sctp_nets *net;
3968
3969                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3970                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3971                             (av->assoc_value != SCTP_CC_HSTCP) &&
3972                             (av->assoc_value != SCTP_CC_HTCP) &&
3973                             (av->assoc_value != SCTP_CC_RTCC)) {
3974                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3975                                 error = EINVAL;
3976                                 break;
3977                         }
3978                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3979                         if (stcb) {
3980                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3981                                 stcb->asoc.congestion_control_module = av->assoc_value;
3982                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3983                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3984                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3985                                         }
3986                                 }
3987                                 SCTP_TCB_UNLOCK(stcb);
3988                         } else {
3989                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3990                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3991                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3992                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3993                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3994                                         SCTP_INP_WLOCK(inp);
3995                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3996                                         SCTP_INP_WUNLOCK(inp);
3997                                 }
3998                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3999                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4000                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4001                                         SCTP_INP_RLOCK(inp);
4002                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4003                                                 SCTP_TCB_LOCK(stcb);
4004                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4005                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4006                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4007                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4008                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4009                                                         }
4010                                                 }
4011                                                 SCTP_TCB_UNLOCK(stcb);
4012                                         }
4013                                         SCTP_INP_RUNLOCK(inp);
4014                                 }
4015                         }
4016                         break;
4017                 }
4018         case SCTP_CC_OPTION:
4019                 {
4020                         struct sctp_cc_option *cc_opt;
4021
4022                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4023                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4024                         if (stcb == NULL) {
4025                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4026                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4027                                         SCTP_INP_RLOCK(inp);
4028                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4029                                                 SCTP_TCB_LOCK(stcb);
4030                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4031                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4032                                                 }
4033                                                 SCTP_TCB_UNLOCK(stcb);
4034                                         }
4035                                         SCTP_INP_RUNLOCK(inp);
4036                                 } else {
4037                                         error = EINVAL;
4038                                 }
4039                         } else {
4040                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4041                                         error = ENOTSUP;
4042                                 } else {
4043                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4044                                             cc_opt);
4045                                 }
4046                                 SCTP_TCB_UNLOCK(stcb);
4047                         }
4048                         break;
4049                 }
4050         case SCTP_PLUGGABLE_SS:
4051                 {
4052                         struct sctp_assoc_value *av;
4053
4054                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4055                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4056                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4057                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4058                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4059                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4060                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4061                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4062                                 error = EINVAL;
4063                                 break;
4064                         }
4065                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4066                         if (stcb) {
4067                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4068                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4069                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4070                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4071                                 SCTP_TCB_UNLOCK(stcb);
4072                         } else {
4073                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4074                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4075                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4076                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4077                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4078                                         SCTP_INP_WLOCK(inp);
4079                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4080                                         SCTP_INP_WUNLOCK(inp);
4081                                 }
4082                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4083                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4084                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4085                                         SCTP_INP_RLOCK(inp);
4086                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4087                                                 SCTP_TCB_LOCK(stcb);
4088                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4089                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4090                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4091                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4092                                                 SCTP_TCB_UNLOCK(stcb);
4093                                         }
4094                                         SCTP_INP_RUNLOCK(inp);
4095                                 }
4096                         }
4097                         break;
4098                 }
4099         case SCTP_SS_VALUE:
4100                 {
4101                         struct sctp_stream_value *av;
4102
4103                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4104                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4105                         if (stcb) {
4106                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4107                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4108                                     av->stream_value) < 0)) {
4109                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4110                                         error = EINVAL;
4111                                 }
4112                                 SCTP_TCB_UNLOCK(stcb);
4113                         } else {
4114                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4115                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4116                                         SCTP_INP_RLOCK(inp);
4117                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4118                                                 SCTP_TCB_LOCK(stcb);
4119                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4120                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4121                                                             &stcb->asoc,
4122                                                             &stcb->asoc.strmout[av->stream_id],
4123                                                             av->stream_value);
4124                                                 }
4125                                                 SCTP_TCB_UNLOCK(stcb);
4126                                         }
4127                                         SCTP_INP_RUNLOCK(inp);
4128                                 } else {
4129                                         /*
4130                                          * Can't set stream value without
4131                                          * association
4132                                          */
4133                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4134                                         error = EINVAL;
4135                                 }
4136                         }
4137                         break;
4138                 }
4139         case SCTP_CLR_STAT_LOG:
4140                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4141                 error = EOPNOTSUPP;
4142                 break;
4143         case SCTP_CONTEXT:
4144                 {
4145                         struct sctp_assoc_value *av;
4146
4147                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4148                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4149
4150                         if (stcb) {
4151                                 stcb->asoc.context = av->assoc_value;
4152                                 SCTP_TCB_UNLOCK(stcb);
4153                         } else {
4154                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4155                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4156                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4157                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4158                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4159                                         SCTP_INP_WLOCK(inp);
4160                                         inp->sctp_context = av->assoc_value;
4161                                         SCTP_INP_WUNLOCK(inp);
4162                                 }
4163                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4164                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4165                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4166                                         SCTP_INP_RLOCK(inp);
4167                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4168                                                 SCTP_TCB_LOCK(stcb);
4169                                                 stcb->asoc.context = av->assoc_value;
4170                                                 SCTP_TCB_UNLOCK(stcb);
4171                                         }
4172                                         SCTP_INP_RUNLOCK(inp);
4173                                 }
4174                         }
4175                         break;
4176                 }
4177         case SCTP_VRF_ID:
4178                 {
4179                         uint32_t *default_vrfid;
4180
4181                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4182                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4183                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4184                                 error = EINVAL;
4185                                 break;
4186                         }
4187                         inp->def_vrf_id = *default_vrfid;
4188                         break;
4189                 }
4190         case SCTP_DEL_VRF_ID:
4191                 {
4192                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4193                         error = EOPNOTSUPP;
4194                         break;
4195                 }
4196         case SCTP_ADD_VRF_ID:
4197                 {
4198                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4199                         error = EOPNOTSUPP;
4200                         break;
4201                 }
4202         case SCTP_DELAYED_SACK:
4203                 {
4204                         struct sctp_sack_info *sack;
4205
4206                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4207                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4208                         if (sack->sack_delay) {
4209                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4210                                         error = EINVAL;
4211                                         if (stcb != NULL) {
4212                                                 SCTP_TCB_UNLOCK(stcb);
4213                                         }
4214                                         break;
4215                                 }
4216                         }
4217                         if (stcb) {
4218                                 if (sack->sack_delay) {
4219                                         stcb->asoc.delayed_ack = sack->sack_delay;
4220                                 }
4221                                 if (sack->sack_freq) {
4222                                         stcb->asoc.sack_freq = sack->sack_freq;
4223                                 }
4224                                 SCTP_TCB_UNLOCK(stcb);
4225                         } else {
4226                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4227                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4228                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4229                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4230                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4231                                         SCTP_INP_WLOCK(inp);
4232                                         if (sack->sack_delay) {
4233                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4234                                         }
4235                                         if (sack->sack_freq) {
4236                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4237                                         }
4238                                         SCTP_INP_WUNLOCK(inp);
4239                                 }
4240                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4241                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4242                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4243                                         SCTP_INP_RLOCK(inp);
4244                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4245                                                 SCTP_TCB_LOCK(stcb);
4246                                                 if (sack->sack_delay) {
4247                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4248                                                 }
4249                                                 if (sack->sack_freq) {
4250                                                         stcb->asoc.sack_freq = sack->sack_freq;
4251                                                 }
4252                                                 SCTP_TCB_UNLOCK(stcb);
4253                                         }
4254                                         SCTP_INP_RUNLOCK(inp);
4255                                 }
4256                         }
4257                         break;
4258                 }
4259         case SCTP_AUTH_CHUNK:
4260                 {
4261                         struct sctp_authchunk *sauth;
4262
4263                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4264
4265                         SCTP_INP_WLOCK(inp);
4266                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4267                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4268                                 error = EINVAL;
4269                         } else {
4270                                 inp->auth_supported = 1;
4271                         }
4272                         SCTP_INP_WUNLOCK(inp);
4273                         break;
4274                 }
4275         case SCTP_AUTH_KEY:
4276                 {
4277                         struct sctp_authkey *sca;
4278                         struct sctp_keyhead *shared_keys;
4279                         sctp_sharedkey_t *shared_key;
4280                         sctp_key_t *key = NULL;
4281                         size_t size;
4282
4283                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4284                         if (sca->sca_keylength == 0) {
4285                                 size = optsize - sizeof(struct sctp_authkey);
4286                         } else {
4287                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4288                                         size = sca->sca_keylength;
4289                                 } else {
4290                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4291                                         error = EINVAL;
4292                                         break;
4293                                 }
4294                         }
4295                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4296
4297                         if (stcb) {
4298                                 shared_keys = &stcb->asoc.shared_keys;
4299                                 /* clear the cached keys for this key id */
4300                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4301                                 /*
4302                                  * create the new shared key and
4303                                  * insert/replace it
4304                                  */
4305                                 if (size > 0) {
4306                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4307                                         if (key == NULL) {
4308                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4309                                                 error = ENOMEM;
4310                                                 SCTP_TCB_UNLOCK(stcb);
4311                                                 break;
4312                                         }
4313                                 }
4314                                 shared_key = sctp_alloc_sharedkey();
4315                                 if (shared_key == NULL) {
4316                                         sctp_free_key(key);
4317                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4318                                         error = ENOMEM;
4319                                         SCTP_TCB_UNLOCK(stcb);
4320                                         break;
4321                                 }
4322                                 shared_key->key = key;
4323                                 shared_key->keyid = sca->sca_keynumber;
4324                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4325                                 SCTP_TCB_UNLOCK(stcb);
4326                         } else {
4327                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4328                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4329                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4330                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4331                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4332                                         SCTP_INP_WLOCK(inp);
4333                                         shared_keys = &inp->sctp_ep.shared_keys;
4334                                         /*
4335                                          * clear the cached keys on all
4336                                          * assocs for this key id
4337                                          */
4338                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4339                                         /*
4340                                          * create the new shared key and
4341                                          * insert/replace it
4342                                          */
4343                                         if (size > 0) {
4344                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4345                                                 if (key == NULL) {
4346                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4347                                                         error = ENOMEM;
4348                                                         SCTP_INP_WUNLOCK(inp);
4349                                                         break;
4350                                                 }
4351                                         }
4352                                         shared_key = sctp_alloc_sharedkey();
4353                                         if (shared_key == NULL) {
4354                                                 sctp_free_key(key);
4355                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4356                                                 error = ENOMEM;
4357                                                 SCTP_INP_WUNLOCK(inp);
4358                                                 break;
4359                                         }
4360                                         shared_key->key = key;
4361                                         shared_key->keyid = sca->sca_keynumber;
4362                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4363                                         SCTP_INP_WUNLOCK(inp);
4364                                 }
4365                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4366                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4367                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4368                                         SCTP_INP_RLOCK(inp);
4369                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4370                                                 SCTP_TCB_LOCK(stcb);
4371                                                 shared_keys = &stcb->asoc.shared_keys;
4372                                                 /*
4373                                                  * clear the cached keys for
4374                                                  * this key id
4375                                                  */
4376                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4377                                                 /*
4378                                                  * create the new shared key
4379                                                  * and insert/replace it
4380                                                  */
4381                                                 if (size > 0) {
4382                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4383                                                         if (key == NULL) {
4384                                                                 SCTP_TCB_UNLOCK(stcb);
4385                                                                 continue;
4386                                                         }
4387                                                 }
4388                                                 shared_key = sctp_alloc_sharedkey();
4389                                                 if (shared_key == NULL) {
4390                                                         sctp_free_key(key);
4391                                                         SCTP_TCB_UNLOCK(stcb);
4392                                                         continue;
4393                                                 }
4394                                                 shared_key->key = key;
4395                                                 shared_key->keyid = sca->sca_keynumber;
4396                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4397                                                 SCTP_TCB_UNLOCK(stcb);
4398                                         }
4399                                         SCTP_INP_RUNLOCK(inp);
4400                                 }
4401                         }
4402                         break;
4403                 }
4404         case SCTP_HMAC_IDENT:
4405                 {
4406                         struct sctp_hmacalgo *shmac;
4407                         sctp_hmaclist_t *hmaclist;
4408                         uint16_t hmacid;
4409                         uint32_t i;
4410
4411                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4412                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4413                             (shmac->shmac_number_of_idents > 0xffff)) {
4414                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4415                                 error = EINVAL;
4416                                 break;
4417                         }
4418
4419                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4420                         if (hmaclist == NULL) {
4421                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4422                                 error = ENOMEM;
4423                                 break;
4424                         }
4425                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4426                                 hmacid = shmac->shmac_idents[i];
4427                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4428                                          /* invalid HMACs were found */ ;
4429                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4430                                         error = EINVAL;
4431                                         sctp_free_hmaclist(hmaclist);
4432                                         goto sctp_set_hmac_done;
4433                                 }
4434                         }
4435                         for (i = 0; i < hmaclist->num_algo; i++) {
4436                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4437                                         /* already in list */
4438                                         break;
4439                                 }
4440                         }
4441                         if (i == hmaclist->num_algo) {
4442                                 /* not found in list */
4443                                 sctp_free_hmaclist(hmaclist);
4444                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4445                                 error = EINVAL;
4446                                 break;
4447                         }
4448                         /* set it on the endpoint */
4449                         SCTP_INP_WLOCK(inp);
4450                         if (inp->sctp_ep.local_hmacs)
4451                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4452                         inp->sctp_ep.local_hmacs = hmaclist;
4453                         SCTP_INP_WUNLOCK(inp);
4454         sctp_set_hmac_done:
4455                         break;
4456                 }
4457         case SCTP_AUTH_ACTIVE_KEY:
4458                 {
4459                         struct sctp_authkeyid *scact;
4460
4461                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4462                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4463
4464                         /* set the active key on the right place */
4465                         if (stcb) {
4466                                 /* set the active key on the assoc */
4467                                 if (sctp_auth_setactivekey(stcb,
4468                                     scact->scact_keynumber)) {
4469                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4470                                             SCTP_FROM_SCTP_USRREQ,
4471                                             EINVAL);
4472                                         error = EINVAL;
4473                                 }
4474                                 SCTP_TCB_UNLOCK(stcb);
4475                         } else {
4476                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4477                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4478                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4479                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4480                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4481                                         SCTP_INP_WLOCK(inp);
4482                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4483                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4484                                                 error = EINVAL;
4485                                         }
4486                                         SCTP_INP_WUNLOCK(inp);
4487                                 }
4488                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4489                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4490                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4491                                         SCTP_INP_RLOCK(inp);
4492                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4493                                                 SCTP_TCB_LOCK(stcb);
4494                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4495                                                 SCTP_TCB_UNLOCK(stcb);
4496                                         }
4497                                         SCTP_INP_RUNLOCK(inp);
4498                                 }
4499                         }
4500                         break;
4501                 }
4502         case SCTP_AUTH_DELETE_KEY:
4503                 {
4504                         struct sctp_authkeyid *scdel;
4505
4506                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4507                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4508
4509                         /* delete the key from the right place */
4510                         if (stcb) {
4511                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4513                                         error = EINVAL;
4514                                 }
4515                                 SCTP_TCB_UNLOCK(stcb);
4516                         } else {
4517                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4518                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4519                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4520                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4521                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4522                                         SCTP_INP_WLOCK(inp);
4523                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4524                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4525                                                 error = EINVAL;
4526                                         }
4527                                         SCTP_INP_WUNLOCK(inp);
4528                                 }
4529                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4530                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4531                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4532                                         SCTP_INP_RLOCK(inp);
4533                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4534                                                 SCTP_TCB_LOCK(stcb);
4535                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4536                                                 SCTP_TCB_UNLOCK(stcb);
4537                                         }
4538                                         SCTP_INP_RUNLOCK(inp);
4539                                 }
4540                         }
4541                         break;
4542                 }
4543         case SCTP_AUTH_DEACTIVATE_KEY:
4544                 {
4545                         struct sctp_authkeyid *keyid;
4546
4547                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4548                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4549
4550                         /* deactivate the key from the right place */
4551                         if (stcb) {
4552                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4553                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4554                                         error = EINVAL;
4555                                 }
4556                                 SCTP_TCB_UNLOCK(stcb);
4557                         } else {
4558                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4559                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4560                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4561                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4562                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4563                                         SCTP_INP_WLOCK(inp);
4564                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4565                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4566                                                 error = EINVAL;
4567                                         }
4568                                         SCTP_INP_WUNLOCK(inp);
4569                                 }
4570                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4571                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4572                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4573                                         SCTP_INP_RLOCK(inp);
4574                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4575                                                 SCTP_TCB_LOCK(stcb);
4576                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4577                                                 SCTP_TCB_UNLOCK(stcb);
4578                                         }
4579                                         SCTP_INP_RUNLOCK(inp);
4580                                 }
4581                         }
4582                         break;
4583                 }
4584         case SCTP_ENABLE_STREAM_RESET:
4585                 {
4586                         struct sctp_assoc_value *av;
4587
4588                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4589                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4590                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4591                                 error = EINVAL;
4592                                 break;
4593                         }
4594                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4595                         if (stcb) {
4596                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4597                                 SCTP_TCB_UNLOCK(stcb);
4598                         } else {
4599                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4600                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4601                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4602                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4603                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4604                                         SCTP_INP_WLOCK(inp);
4605                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4606                                         SCTP_INP_WUNLOCK(inp);
4607                                 }
4608                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4609                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4610                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4611                                         SCTP_INP_RLOCK(inp);
4612                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4613                                                 SCTP_TCB_LOCK(stcb);
4614                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4615                                                 SCTP_TCB_UNLOCK(stcb);
4616                                         }
4617                                         SCTP_INP_RUNLOCK(inp);
4618                                 }
4619                         }
4620                         break;
4621                 }
4622         case SCTP_RESET_STREAMS:
4623                 {
4624                         struct sctp_reset_streams *strrst;
4625                         int i, send_out = 0;
4626                         int send_in = 0;
4627
4628                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4629                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4630                         if (stcb == NULL) {
4631                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4632                                 error = ENOENT;
4633                                 break;
4634                         }
4635                         if (stcb->asoc.reconfig_supported == 0) {
4636                                 /*
4637                                  * Peer does not support the chunk type.
4638                                  */
4639                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4640                                 error = EOPNOTSUPP;
4641                                 SCTP_TCB_UNLOCK(stcb);
4642                                 break;
4643                         }
4644                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4645                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4646                                 error = EINVAL;
4647                                 SCTP_TCB_UNLOCK(stcb);
4648                                 break;
4649                         }
4650                         if (sizeof(struct sctp_reset_streams) +
4651                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4652                                 error = EINVAL;
4653                                 SCTP_TCB_UNLOCK(stcb);
4654                                 break;
4655                         }
4656                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4657                                 send_in = 1;
4658                                 if (stcb->asoc.stream_reset_outstanding) {
4659                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4660                                         error = EALREADY;
4661                                         SCTP_TCB_UNLOCK(stcb);
4662                                         break;
4663                                 }
4664                         }
4665                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4666                                 send_out = 1;
4667                         }
4668                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4669                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4670                                 error = ENOMEM;
4671                                 SCTP_TCB_UNLOCK(stcb);
4672                                 break;
4673                         }
4674                         if ((send_in == 0) && (send_out == 0)) {
4675                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4676                                 error = EINVAL;
4677                                 SCTP_TCB_UNLOCK(stcb);
4678                                 break;
4679                         }
4680                         for (i = 0; i < strrst->srs_number_streams; i++) {
4681                                 if ((send_in) &&
4682                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4683                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4684                                         error = EINVAL;
4685                                         break;
4686                                 }
4687                                 if ((send_out) &&
4688                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4689                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4690                                         error = EINVAL;
4691                                         break;
4692                                 }
4693                         }
4694                         if (error) {
4695                                 SCTP_TCB_UNLOCK(stcb);
4696                                 break;
4697                         }
4698                         if (send_out) {
4699                                 int cnt;
4700                                 uint16_t strm;
4701
4702                                 if (strrst->srs_number_streams) {
4703                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4704                                                 strm = strrst->srs_stream_list[i];
4705                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4706                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4707                                                         cnt++;
4708                                                 }
4709                                         }
4710                                 } else {
4711                                         /* Its all */
4712                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4713                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4714                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4715                                                         cnt++;
4716                                                 }
4717                                         }
4718                                 }
4719                         }
4720                         if (send_in) {
4721                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4722                                     strrst->srs_stream_list,
4723                                     send_in, 0, 0, 0, 0, 0);
4724                         } else {
4725                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4726                         }
4727                         if (error == 0) {
4728                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4729                         } else {
4730                                 /*
4731                                  * For outgoing streams don't report any
4732                                  * problems in sending the request to the
4733                                  * application. XXX: Double check resetting
4734                                  * incoming streams.
4735                                  */
4736                                 error = 0;
4737                         }
4738                         SCTP_TCB_UNLOCK(stcb);
4739                         break;
4740                 }
4741         case SCTP_ADD_STREAMS:
4742                 {
4743                         struct sctp_add_streams *stradd;
4744                         uint8_t addstream = 0;
4745                         uint16_t add_o_strmcnt = 0;
4746                         uint16_t add_i_strmcnt = 0;
4747
4748                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4749                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4750                         if (stcb == NULL) {
4751                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4752                                 error = ENOENT;
4753                                 break;
4754                         }
4755                         if (stcb->asoc.reconfig_supported == 0) {
4756                                 /*
4757                                  * Peer does not support the chunk type.
4758                                  */
4759                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4760                                 error = EOPNOTSUPP;
4761                                 SCTP_TCB_UNLOCK(stcb);
4762                                 break;
4763                         }
4764                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4765                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4766                                 error = EINVAL;
4767                                 SCTP_TCB_UNLOCK(stcb);
4768                                 break;
4769                         }
4770                         if (stcb->asoc.stream_reset_outstanding) {
4771                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4772                                 error = EALREADY;
4773                                 SCTP_TCB_UNLOCK(stcb);
4774                                 break;
4775                         }
4776                         if ((stradd->sas_outstrms == 0) &&
4777                             (stradd->sas_instrms == 0)) {
4778                                 error = EINVAL;
4779                                 goto skip_stuff;
4780                         }
4781                         if (stradd->sas_outstrms) {
4782                                 addstream = 1;
4783                                 /* We allocate here */
4784                                 add_o_strmcnt = stradd->sas_outstrms;
4785                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4786                                         /* You can't have more than 64k */
4787                                         error = EINVAL;
4788                                         goto skip_stuff;
4789                                 }
4790                         }
4791                         if (stradd->sas_instrms) {
4792                                 int cnt;
4793
4794                                 addstream |= 2;
4795                                 /*
4796                                  * We allocate inside
4797                                  * sctp_send_str_reset_req()
4798                                  */
4799                                 add_i_strmcnt = stradd->sas_instrms;
4800                                 cnt = add_i_strmcnt;
4801                                 cnt += stcb->asoc.streamincnt;
4802                                 if (cnt > 0x0000ffff) {
4803                                         /* You can't have more than 64k */
4804                                         error = EINVAL;
4805                                         goto skip_stuff;
4806                                 }
4807                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4808                                         /* More than you are allowed */
4809                                         error = EINVAL;
4810                                         goto skip_stuff;
4811                                 }
4812                         }
4813                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4814                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4815         skip_stuff:
4816                         SCTP_TCB_UNLOCK(stcb);
4817                         break;
4818                 }
4819         case SCTP_RESET_ASSOC:
4820                 {
4821                         int i;
4822                         uint32_t *value;
4823
4824                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4825                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4826                         if (stcb == NULL) {
4827                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4828                                 error = ENOENT;
4829                                 break;
4830                         }
4831                         if (stcb->asoc.reconfig_supported == 0) {
4832                                 /*
4833                                  * Peer does not support the chunk type.
4834                                  */
4835                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4836                                 error = EOPNOTSUPP;
4837                                 SCTP_TCB_UNLOCK(stcb);
4838                                 break;
4839                         }
4840                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4841                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4842                                 error = EINVAL;
4843                                 SCTP_TCB_UNLOCK(stcb);
4844                                 break;
4845                         }
4846                         if (stcb->asoc.stream_reset_outstanding) {
4847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4848                                 error = EALREADY;
4849                                 SCTP_TCB_UNLOCK(stcb);
4850                                 break;
4851                         }
4852                         /*
4853                          * Is there any data pending in the send or sent
4854                          * queues?
4855                          */
4856                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4857                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4858                 busy_out:
4859                                 error = EBUSY;
4860                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4861                                 SCTP_TCB_UNLOCK(stcb);
4862                                 break;
4863                         }
4864                         /* Do any streams have data queued? */
4865                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4866                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4867                                         goto busy_out;
4868                                 }
4869                         }
4870                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4871                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4872                         SCTP_TCB_UNLOCK(stcb);
4873                         break;
4874                 }
4875         case SCTP_CONNECT_X:
4876                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4877                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4878                         error = EINVAL;
4879                         break;
4880                 }
4881                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4882                 break;
4883         case SCTP_CONNECT_X_DELAYED:
4884                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4885                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4886                         error = EINVAL;
4887                         break;
4888                 }
4889                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4890                 break;
4891         case SCTP_CONNECT_X_COMPLETE:
4892                 {
4893                         struct sockaddr *sa;
4894
4895                         /* FIXME MT: check correct? */
4896                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4897
4898                         /* find tcb */
4899                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4900                                 SCTP_INP_RLOCK(inp);
4901                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4902                                 if (stcb) {
4903                                         SCTP_TCB_LOCK(stcb);
4904                                 }
4905                                 SCTP_INP_RUNLOCK(inp);
4906                         } else {
4907                                 /*
4908                                  * We increment here since
4909                                  * sctp_findassociation_ep_addr() wil do a
4910                                  * decrement if it finds the stcb as long as
4911                                  * the locked tcb (last argument) is NOT a
4912                                  * TCB.. aka NULL.
4913                                  */
4914                                 SCTP_INP_INCR_REF(inp);
4915                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4916                                 if (stcb == NULL) {
4917                                         SCTP_INP_DECR_REF(inp);
4918                                 }
4919                         }
4920
4921                         if (stcb == NULL) {
4922                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4923                                 error = ENOENT;
4924                                 break;
4925                         }
4926                         if (stcb->asoc.delayed_connection == 1) {
4927                                 stcb->asoc.delayed_connection = 0;
4928                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4929                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4930                                     stcb->asoc.primary_destination,
4931                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4932                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4933                         } else {
4934                                 /*
4935                                  * already expired or did not use delayed
4936                                  * connectx
4937                                  */
4938                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4939                                 error = EALREADY;
4940                         }
4941                         SCTP_TCB_UNLOCK(stcb);
4942                         break;
4943                 }
4944         case SCTP_MAX_BURST:
4945                 {
4946                         struct sctp_assoc_value *av;
4947
4948                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4949                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4950
4951                         if (stcb) {
4952                                 stcb->asoc.max_burst = av->assoc_value;
4953                                 SCTP_TCB_UNLOCK(stcb);
4954                         } else {
4955                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4956                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4957                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4958                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4959                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4960                                         SCTP_INP_WLOCK(inp);
4961                                         inp->sctp_ep.max_burst = av->assoc_value;
4962                                         SCTP_INP_WUNLOCK(inp);
4963                                 }
4964                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4965                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4966                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4967                                         SCTP_INP_RLOCK(inp);
4968                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4969                                                 SCTP_TCB_LOCK(stcb);
4970                                                 stcb->asoc.max_burst = av->assoc_value;
4971                                                 SCTP_TCB_UNLOCK(stcb);
4972                                         }
4973                                         SCTP_INP_RUNLOCK(inp);
4974                                 }
4975                         }
4976                         break;
4977                 }
4978         case SCTP_MAXSEG:
4979                 {
4980                         struct sctp_assoc_value *av;
4981
4982                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4983                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4984
4985                         if (stcb) {
4986                                 stcb->asoc.sctp_frag_point = av->assoc_value;
4987                                 SCTP_TCB_UNLOCK(stcb);
4988                         } else {
4989                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4990                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4991                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4992                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
4993                                         SCTP_INP_WLOCK(inp);
4994                                         inp->sctp_frag_point = av->assoc_value;
4995                                         SCTP_INP_WUNLOCK(inp);
4996                                 } else {
4997                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4998                                         error = EINVAL;
4999                                 }
5000                         }
5001                         break;
5002                 }
5003         case SCTP_EVENTS:
5004                 {
5005                         struct sctp_event_subscribe *events;
5006
5007                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5008
5009                         SCTP_INP_WLOCK(inp);
5010                         if (events->sctp_data_io_event) {
5011                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5012                         } else {
5013                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5014                         }
5015
5016                         if (events->sctp_association_event) {
5017                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5018                         } else {
5019                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5020                         }
5021
5022                         if (events->sctp_address_event) {
5023                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5024                         } else {
5025                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5026                         }
5027
5028                         if (events->sctp_send_failure_event) {
5029                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5030                         } else {
5031                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5032                         }
5033
5034                         if (events->sctp_peer_error_event) {
5035                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5036                         } else {
5037                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5038                         }
5039
5040                         if (events->sctp_shutdown_event) {
5041                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5042                         } else {
5043                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5044                         }
5045
5046                         if (events->sctp_partial_delivery_event) {
5047                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5048                         } else {
5049                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5050                         }
5051
5052                         if (events->sctp_adaptation_layer_event) {
5053                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5054                         } else {
5055                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5056                         }
5057
5058                         if (events->sctp_authentication_event) {
5059                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5060                         } else {
5061                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5062                         }
5063
5064                         if (events->sctp_sender_dry_event) {
5065                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5066                         } else {
5067                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5068                         }
5069
5070                         if (events->sctp_stream_reset_event) {
5071                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5072                         } else {
5073                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5074                         }
5075
5076                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5077                                 SCTP_TCB_LOCK(stcb);
5078                                 if (events->sctp_association_event) {
5079                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5080                                 } else {
5081                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5082                                 }
5083                                 if (events->sctp_address_event) {
5084                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5085                                 } else {
5086                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5087                                 }
5088                                 if (events->sctp_send_failure_event) {
5089                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5090                                 } else {
5091                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5092                                 }
5093                                 if (events->sctp_peer_error_event) {
5094                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5095                                 } else {
5096                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5097                                 }
5098                                 if (events->sctp_shutdown_event) {
5099                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5100                                 } else {
5101                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5102                                 }
5103                                 if (events->sctp_partial_delivery_event) {
5104                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5105                                 } else {
5106                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5107                                 }
5108                                 if (events->sctp_adaptation_layer_event) {
5109                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5110                                 } else {
5111                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5112                                 }
5113                                 if (events->sctp_authentication_event) {
5114                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5115                                 } else {
5116                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5117                                 }
5118                                 if (events->sctp_sender_dry_event) {
5119                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5120                                 } else {
5121                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5122                                 }
5123                                 if (events->sctp_stream_reset_event) {
5124                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5125                                 } else {
5126                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5127                                 }
5128                                 SCTP_TCB_UNLOCK(stcb);
5129                         }
5130                         /*
5131                          * Send up the sender dry event only for 1-to-1
5132                          * style sockets.
5133                          */
5134                         if (events->sctp_sender_dry_event) {
5135                                 if (((inp->sctp_flags & (SCTP_PCB_FLAGS_TCPTYPE | SCTP_PCB_FLAGS_IN_TCPPOOL)) != 0) &&
5136                                     !SCTP_IS_LISTENING(inp)) {
5137                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5138                                         if (stcb != NULL) {
5139                                                 SCTP_TCB_LOCK(stcb);
5140                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5141                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5142                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5143                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5144                                                 }
5145                                                 SCTP_TCB_UNLOCK(stcb);
5146                                         }
5147                                 }
5148                         }
5149                         SCTP_INP_WUNLOCK(inp);
5150                         break;
5151                 }
5152         case SCTP_ADAPTATION_LAYER:
5153                 {
5154                         struct sctp_setadaptation *adap_bits;
5155
5156                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5157                         SCTP_INP_WLOCK(inp);
5158                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5159                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5160                         SCTP_INP_WUNLOCK(inp);
5161                         break;
5162                 }
5163 #ifdef SCTP_DEBUG
5164         case SCTP_SET_INITIAL_DBG_SEQ:
5165                 {
5166                         uint32_t *vvv;
5167
5168                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5169                         SCTP_INP_WLOCK(inp);
5170                         inp->sctp_ep.initial_sequence_debug = *vvv;
5171                         SCTP_INP_WUNLOCK(inp);
5172                         break;
5173                 }
5174 #endif
5175         case SCTP_DEFAULT_SEND_PARAM:
5176                 {
5177                         struct sctp_sndrcvinfo *s_info;
5178
5179                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5180                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5181
5182                         if (stcb) {
5183                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5184                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5185                                 } else {
5186                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5187                                         error = EINVAL;
5188                                 }
5189                                 SCTP_TCB_UNLOCK(stcb);
5190                         } else {
5191                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5192                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5193                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5194                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5195                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5196                                         SCTP_INP_WLOCK(inp);
5197                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5198                                         SCTP_INP_WUNLOCK(inp);
5199                                 }
5200                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5201                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5202                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5203                                         SCTP_INP_RLOCK(inp);
5204                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5205                                                 SCTP_TCB_LOCK(stcb);
5206                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5207                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5208                                                 }
5209                                                 SCTP_TCB_UNLOCK(stcb);
5210                                         }
5211                                         SCTP_INP_RUNLOCK(inp);
5212                                 }
5213                         }
5214                         break;
5215                 }
5216         case SCTP_PEER_ADDR_PARAMS:
5217                 {
5218                         struct sctp_paddrparams *paddrp;
5219                         struct sctp_nets *net;
5220                         struct sockaddr *addr;
5221 #if defined(INET) && defined(INET6)
5222                         struct sockaddr_in sin_store;
5223 #endif
5224
5225                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5226                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5227
5228 #if defined(INET) && defined(INET6)
5229                         if (paddrp->spp_address.ss_family == AF_INET6) {
5230                                 struct sockaddr_in6 *sin6;
5231
5232                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5233                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5234                                         in6_sin6_2_sin(&sin_store, sin6);
5235                                         addr = (struct sockaddr *)&sin_store;
5236                                 } else {
5237                                         addr = (struct sockaddr *)&paddrp->spp_address;
5238                                 }
5239                         } else {
5240                                 addr = (struct sockaddr *)&paddrp->spp_address;
5241                         }
5242 #else
5243                         addr = (struct sockaddr *)&paddrp->spp_address;
5244 #endif
5245                         if (stcb != NULL) {
5246                                 net = sctp_findnet(stcb, addr);
5247                         } else {
5248                                 /*
5249                                  * We increment here since
5250                                  * sctp_findassociation_ep_addr() wil do a
5251                                  * decrement if it finds the stcb as long as
5252                                  * the locked tcb (last argument) is NOT a
5253                                  * TCB.. aka NULL.
5254                                  */
5255                                 net = NULL;
5256                                 SCTP_INP_INCR_REF(inp);
5257                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5258                                     &net, NULL, NULL);
5259                                 if (stcb == NULL) {
5260                                         SCTP_INP_DECR_REF(inp);
5261                                 }
5262                         }
5263                         if ((stcb != NULL) && (net == NULL)) {
5264 #ifdef INET
5265                                 if (addr->sa_family == AF_INET) {
5266                                         struct sockaddr_in *sin;
5267
5268                                         sin = (struct sockaddr_in *)addr;
5269                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5270                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5271                                                 SCTP_TCB_UNLOCK(stcb);
5272                                                 error = EINVAL;
5273                                                 break;
5274                                         }
5275                                 } else
5276 #endif
5277 #ifdef INET6
5278                                 if (addr->sa_family == AF_INET6) {
5279                                         struct sockaddr_in6 *sin6;
5280
5281                                         sin6 = (struct sockaddr_in6 *)addr;
5282                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5283                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5284                                                 SCTP_TCB_UNLOCK(stcb);
5285                                                 error = EINVAL;
5286                                                 break;
5287                                         }
5288                                 } else
5289 #endif
5290                                 {
5291                                         error = EAFNOSUPPORT;
5292                                         SCTP_TCB_UNLOCK(stcb);
5293                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5294                                         break;
5295                                 }
5296                         }
5297                         /* sanity checks */
5298                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5299                                 if (stcb)
5300                                         SCTP_TCB_UNLOCK(stcb);
5301                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5302                                 return (EINVAL);
5303                         }
5304
5305                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5306                                 if (stcb)
5307                                         SCTP_TCB_UNLOCK(stcb);
5308                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5309                                 return (EINVAL);
5310                         }
5311                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5312                             (paddrp->spp_pathmtu > 0) &&
5313                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5314                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5315                                 if (stcb)
5316                                         SCTP_TCB_UNLOCK(stcb);
5317                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5318                                 return (EINVAL);
5319                         }
5320
5321                         if (stcb != NULL) {
5322                                 /************************TCB SPECIFIC SET ******************/
5323                                 if (net != NULL) {
5324                                         /************************NET SPECIFIC SET ******************/
5325                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5326                                                 if (((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) &&
5327                                                     ((net->dest_state & SCTP_ADDR_NOHB) == 0)) {
5328                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5329                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5330                                                 }
5331                                                 net->dest_state |= SCTP_ADDR_NOHB;
5332                                         }
5333                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5334                                                 if (paddrp->spp_hbinterval) {
5335                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5336                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5337                                                         net->heart_beat_delay = 0;
5338                                                 }
5339                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5340                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5341                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5342                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5343                                         }
5344                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5345                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5346                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5347                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5348                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5349                                                 }
5350                                         }
5351                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5352                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5353                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5354                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5355                                                 }
5356                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5357                                                 if (paddrp->spp_pathmtu > 0) {
5358                                                         net->mtu = paddrp->spp_pathmtu;
5359                                                         switch (net->ro._l_addr.sa.sa_family) {
5360 #ifdef INET
5361                                                         case AF_INET:
5362                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5363                                                                 break;
5364 #endif
5365 #ifdef INET6
5366                                                         case AF_INET6:
5367                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5368                                                                 break;
5369 #endif
5370                                                         default:
5371                                                                 break;
5372                                                         }
5373                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5374                                                                 sctp_pathmtu_adjustment(stcb, net->mtu, true);
5375                                                         }
5376                                                 }
5377                                         }
5378                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5379                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5380                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5381                                                 }
5382                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5383                                         }
5384                                         if (paddrp->spp_pathmaxrxt > 0) {
5385                                                 if (net->dest_state & SCTP_ADDR_PF) {
5386                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5387                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5388                                                         }
5389                                                 } else {
5390                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5391                                                             (net->error_count > net->pf_threshold)) {
5392                                                                 net->dest_state |= SCTP_ADDR_PF;
5393                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5394                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5395                                                                     stcb->sctp_ep, stcb, net,
5396                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5397                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5398                                                         }
5399                                                 }
5400                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5401                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5402                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5403                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5404                                                         }
5405                                                 } else {
5406                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5407                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5408                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5409                                                         }
5410                                                 }
5411                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5412                                         }
5413                                         if (paddrp->spp_flags & SPP_DSCP) {
5414                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5415                                                 net->dscp |= 0x01;
5416                                         }
5417 #ifdef INET6
5418                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5419                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5420                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5421                                                         net->flowlabel |= 0x80000000;
5422                                                 }
5423                                         }
5424 #endif
5425                                 } else {
5426                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5427                                         if (paddrp->spp_pathmaxrxt > 0) {
5428                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5429                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5430                                                         if (net->dest_state & SCTP_ADDR_PF) {
5431                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5432                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5433                                                                 }
5434                                                         } else {
5435                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5436                                                                     (net->error_count > net->pf_threshold)) {
5437                                                                         net->dest_state |= SCTP_ADDR_PF;
5438                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5439                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5440                                                                             stcb->sctp_ep, stcb, net,
5441                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5442                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5443                                                                 }
5444                                                         }
5445                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5446                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5447                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5448                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5449                                                                 }
5450                                                         } else {
5451                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5452                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5453                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5454                                                                 }
5455                                                         }
5456                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5457                                                 }
5458                                         }
5459                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5460                                                 if (paddrp->spp_hbinterval != 0) {
5461                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5462                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5463                                                         stcb->asoc.heart_beat_delay = 0;
5464                                                 }
5465                                                 /* Turn back on the timer */
5466                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5467                                                         if (paddrp->spp_hbinterval != 0) {
5468                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5469                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5470                                                                 net->heart_beat_delay = 0;
5471                                                         }
5472                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5473                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5474                                                         }
5475                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5476                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5477                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5478                                                 }
5479                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5480                                         }
5481                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5482                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5483                                                         if ((net->dest_state & SCTP_ADDR_NOHB) == 0) {
5484                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5485                                                                 if ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) {
5486                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5487                                                                             inp, stcb, net,
5488                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5489                                                                 }
5490                                                         }
5491                                                 }
5492                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5493                                         }
5494                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5495                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5496                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5497                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5498                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5499                                                         }
5500                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5501                                                         if (paddrp->spp_pathmtu > 0) {
5502                                                                 net->mtu = paddrp->spp_pathmtu;
5503                                                                 switch (net->ro._l_addr.sa.sa_family) {
5504 #ifdef INET
5505                                                                 case AF_INET:
5506                                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5507                                                                         break;
5508 #endif
5509 #ifdef INET6
5510                                                                 case AF_INET6:
5511                                                                         net->mtu += SCTP_MIN_OVERHEAD;
5512                                                                         break;
5513 #endif
5514                                                                 default:
5515                                                                         break;
5516                                                                 }
5517                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5518                                                                         sctp_pathmtu_adjustment(stcb, net->mtu, true);
5519                                                                 }
5520                                                         }
5521                                                 }
5522                                                 if (paddrp->spp_pathmtu > 0) {
5523                                                         stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5524                                                 }
5525                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5526                                         }
5527                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5528                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5529                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5530                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5531                                                         }
5532                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5533                                                 }
5534                                                 stcb->asoc.default_mtu = 0;
5535                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5536                                         }
5537                                         if (paddrp->spp_flags & SPP_DSCP) {
5538                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5539                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5540                                                         net->dscp |= 0x01;
5541                                                 }
5542                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5543                                                 stcb->asoc.default_dscp |= 0x01;
5544                                         }
5545 #ifdef INET6
5546                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5547                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5548                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5549                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5550                                                                 net->flowlabel |= 0x80000000;
5551                                                         }
5552                                                 }
5553                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5554                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5555                                         }
5556 #endif
5557                                 }
5558                                 SCTP_TCB_UNLOCK(stcb);
5559                         } else {
5560                                 /************************NO TCB, SET TO default stuff ******************/
5561                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5562                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5563                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5564                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5565                                         SCTP_INP_WLOCK(inp);
5566                                         /*
5567                                          * For the TOS/FLOWLABEL stuff you
5568                                          * set it with the options on the
5569                                          * socket
5570                                          */
5571                                         if (paddrp->spp_pathmaxrxt > 0) {
5572                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5573                                         }
5574
5575                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5576                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5577                                         else if (paddrp->spp_hbinterval != 0) {
5578                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5579                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5580                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5581                                         }
5582
5583                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5584                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5585                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5586                                                 } else if (paddrp->spp_hbinterval) {
5587                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5588                                                 }
5589                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5590                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5591                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5592                                         }
5593                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5594                                                 inp->sctp_ep.default_mtu = 0;
5595                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5596                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5597                                                 if (paddrp->spp_pathmtu > 0) {
5598                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5599                                                 }
5600                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5601                                         }
5602                                         if (paddrp->spp_flags & SPP_DSCP) {
5603                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5604                                                 inp->sctp_ep.default_dscp |= 0x01;
5605                                         }
5606 #ifdef INET6
5607                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5608                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5609                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5610                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5611                                                 }
5612                                         }
5613 #endif
5614                                         SCTP_INP_WUNLOCK(inp);
5615                                 } else {
5616                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5617                                         error = EINVAL;
5618                                 }
5619                         }
5620                         break;
5621                 }
5622         case SCTP_RTOINFO:
5623                 {
5624                         struct sctp_rtoinfo *srto;
5625                         uint32_t new_init, new_min, new_max;
5626
5627                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5628                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5629
5630                         if (stcb) {
5631                                 if (srto->srto_initial)
5632                                         new_init = srto->srto_initial;
5633                                 else
5634                                         new_init = stcb->asoc.initial_rto;
5635                                 if (srto->srto_max)
5636                                         new_max = srto->srto_max;
5637                                 else
5638                                         new_max = stcb->asoc.maxrto;
5639                                 if (srto->srto_min)
5640                                         new_min = srto->srto_min;
5641                                 else
5642                                         new_min = stcb->asoc.minrto;
5643                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5644                                         stcb->asoc.initial_rto = new_init;
5645                                         stcb->asoc.maxrto = new_max;
5646                                         stcb->asoc.minrto = new_min;
5647                                 } else {
5648                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5649                                         error = EINVAL;
5650                                 }
5651                                 SCTP_TCB_UNLOCK(stcb);
5652                         } else {
5653                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5654                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5655                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5656                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5657                                         SCTP_INP_WLOCK(inp);
5658                                         if (srto->srto_initial)
5659                                                 new_init = srto->srto_initial;
5660                                         else
5661                                                 new_init = inp->sctp_ep.initial_rto;
5662                                         if (srto->srto_max)
5663                                                 new_max = srto->srto_max;
5664                                         else
5665                                                 new_max = inp->sctp_ep.sctp_maxrto;
5666                                         if (srto->srto_min)
5667                                                 new_min = srto->srto_min;
5668                                         else
5669                                                 new_min = inp->sctp_ep.sctp_minrto;
5670                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5671                                                 inp->sctp_ep.initial_rto = new_init;
5672                                                 inp->sctp_ep.sctp_maxrto = new_max;
5673                                                 inp->sctp_ep.sctp_minrto = new_min;
5674                                         } else {
5675                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5676                                                 error = EINVAL;
5677                                         }
5678                                         SCTP_INP_WUNLOCK(inp);
5679                                 } else {
5680                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5681                                         error = EINVAL;
5682                                 }
5683                         }
5684                         break;
5685                 }
5686         case SCTP_ASSOCINFO:
5687                 {
5688                         struct sctp_assocparams *sasoc;
5689
5690                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5691                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5692                         if (sasoc->sasoc_cookie_life > 0) {
5693                                 /* boundary check the cookie life */
5694                                 if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
5695                                         sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
5696                                 }
5697                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5698                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5699                                 }
5700                         }
5701                         if (stcb) {
5702                                 if (sasoc->sasoc_asocmaxrxt > 0) {
5703                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5704                                 }
5705                                 if (sasoc->sasoc_cookie_life > 0) {
5706                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5707                                 }
5708                                 SCTP_TCB_UNLOCK(stcb);
5709                         } else {
5710                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5711                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5712                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5713                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5714                                         SCTP_INP_WLOCK(inp);
5715                                         if (sasoc->sasoc_asocmaxrxt > 0) {
5716                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5717                                         }
5718                                         if (sasoc->sasoc_cookie_life > 0) {
5719                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5720                                         }
5721                                         SCTP_INP_WUNLOCK(inp);
5722                                 } else {
5723                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5724                                         error = EINVAL;
5725                                 }
5726                         }
5727                         break;
5728                 }
5729         case SCTP_INITMSG:
5730                 {
5731                         struct sctp_initmsg *sinit;
5732
5733                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5734                         SCTP_INP_WLOCK(inp);
5735                         if (sinit->sinit_num_ostreams)
5736                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5737
5738                         if (sinit->sinit_max_instreams)
5739                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5740
5741                         if (sinit->sinit_max_attempts)
5742                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5743
5744                         if (sinit->sinit_max_init_timeo)
5745                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5746                         SCTP_INP_WUNLOCK(inp);
5747                         break;
5748                 }
5749         case SCTP_PRIMARY_ADDR:
5750                 {
5751                         struct sctp_setprim *spa;
5752                         struct sctp_nets *net;
5753                         struct sockaddr *addr;
5754 #if defined(INET) && defined(INET6)
5755                         struct sockaddr_in sin_store;
5756 #endif
5757
5758                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5759                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5760
5761 #if defined(INET) && defined(INET6)
5762                         if (spa->ssp_addr.ss_family == AF_INET6) {
5763                                 struct sockaddr_in6 *sin6;
5764
5765                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5766                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5767                                         in6_sin6_2_sin(&sin_store, sin6);
5768                                         addr = (struct sockaddr *)&sin_store;
5769                                 } else {
5770                                         addr = (struct sockaddr *)&spa->ssp_addr;
5771                                 }
5772                         } else {
5773                                 addr = (struct sockaddr *)&spa->ssp_addr;
5774                         }
5775 #else
5776                         addr = (struct sockaddr *)&spa->ssp_addr;
5777 #endif
5778                         if (stcb != NULL) {
5779                                 net = sctp_findnet(stcb, addr);
5780                         } else {
5781                                 /*
5782                                  * We increment here since
5783                                  * sctp_findassociation_ep_addr() wil do a
5784                                  * decrement if it finds the stcb as long as
5785                                  * the locked tcb (last argument) is NOT a
5786                                  * TCB.. aka NULL.
5787                                  */
5788                                 net = NULL;
5789                                 SCTP_INP_INCR_REF(inp);
5790                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5791                                     &net, NULL, NULL);
5792                                 if (stcb == NULL) {
5793                                         SCTP_INP_DECR_REF(inp);
5794                                 }
5795                         }
5796
5797                         if ((stcb != NULL) && (net != NULL)) {
5798                                 if (net != stcb->asoc.primary_destination) {
5799                                         if ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0) {
5800                                                 /* Ok we need to set it */
5801                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5802                                                         if ((stcb->asoc.alternate) &&
5803                                                             ((net->dest_state & SCTP_ADDR_PF) == 0) &&
5804                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5805                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5806                                                                 stcb->asoc.alternate = NULL;
5807                                                         }
5808                                                 } else {
5809                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5810                                                         error = EINVAL;
5811                                                 }
5812                                         } else {
5813                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5814                                                 error = EINVAL;
5815                                         }
5816                                 }
5817                         } else {
5818                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5819                                 error = EINVAL;
5820                         }
5821                         if (stcb != NULL) {
5822                                 SCTP_TCB_UNLOCK(stcb);
5823                         }
5824                         break;
5825                 }
5826         case SCTP_SET_DYNAMIC_PRIMARY:
5827                 {
5828                         union sctp_sockstore *ss;
5829
5830                         error = priv_check(curthread,
5831                             PRIV_NETINET_RESERVEDPORT);
5832                         if (error)
5833                                 break;
5834
5835                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5836                         /* SUPER USER CHECK? */
5837                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5838                         break;
5839                 }
5840         case SCTP_SET_PEER_PRIMARY_ADDR:
5841                 {
5842                         struct sctp_setpeerprim *sspp;
5843                         struct sockaddr *addr;
5844 #if defined(INET) && defined(INET6)
5845                         struct sockaddr_in sin_store;
5846 #endif
5847
5848                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5849                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5850                         if (stcb != NULL) {
5851                                 struct sctp_ifa *ifa;
5852
5853 #if defined(INET) && defined(INET6)
5854                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5855                                         struct sockaddr_in6 *sin6;
5856
5857                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5858                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5859                                                 in6_sin6_2_sin(&sin_store, sin6);
5860                                                 addr = (struct sockaddr *)&sin_store;
5861                                         } else {
5862                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5863                                         }
5864                                 } else {
5865                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5866                                 }
5867 #else
5868                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5869 #endif
5870                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5871                                 if (ifa == NULL) {
5872                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5873                                         error = EINVAL;
5874                                         goto out_of_it;
5875                                 }
5876                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5877                                         /*
5878                                          * Must validate the ifa found is in
5879                                          * our ep
5880                                          */
5881                                         struct sctp_laddr *laddr;
5882                                         int found = 0;
5883
5884                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5885                                                 if (laddr->ifa == NULL) {
5886                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5887                                                             __func__);
5888                                                         continue;
5889                                                 }
5890                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5891                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5892                                                         continue;
5893                                                 }
5894                                                 if (laddr->ifa == ifa) {
5895                                                         found = 1;
5896                                                         break;
5897                                                 }
5898                                         }
5899                                         if (!found) {
5900                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5901                                                 error = EINVAL;
5902                                                 goto out_of_it;
5903                                         }
5904                                 } else {
5905                                         switch (addr->sa_family) {
5906 #ifdef INET
5907                                         case AF_INET:
5908                                                 {
5909                                                         struct sockaddr_in *sin;
5910
5911                                                         sin = (struct sockaddr_in *)addr;
5912                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5913                                                             &sin->sin_addr) != 0) {
5914                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5915                                                                 error = EINVAL;
5916                                                                 goto out_of_it;
5917                                                         }
5918                                                         break;
5919                                                 }
5920 #endif
5921 #ifdef INET6
5922                                         case AF_INET6:
5923                                                 {
5924                                                         struct sockaddr_in6 *sin6;
5925
5926                                                         sin6 = (struct sockaddr_in6 *)addr;
5927                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5928                                                             &sin6->sin6_addr) != 0) {
5929                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5930                                                                 error = EINVAL;
5931                                                                 goto out_of_it;
5932                                                         }
5933                                                         break;
5934                                                 }
5935 #endif
5936                                         default:
5937                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5938                                                 error = EINVAL;
5939                                                 goto out_of_it;
5940                                         }
5941                                 }
5942                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5943                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5944                                         error = EINVAL;
5945                                 }
5946                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5947                 out_of_it:
5948                                 SCTP_TCB_UNLOCK(stcb);
5949                         } else {
5950                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5951                                 error = EINVAL;
5952                         }
5953                         break;
5954                 }
5955         case SCTP_BINDX_ADD_ADDR:
5956                 {
5957                         struct sockaddr *sa;
5958                         struct thread *td;
5959
5960                         td = (struct thread *)p;
5961                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5962 #ifdef INET
5963                         if (sa->sa_family == AF_INET) {
5964                                 if (optsize < sizeof(struct sockaddr_in)) {
5965                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5966                                         error = EINVAL;
5967                                         break;
5968                                 }
5969                                 if (td != NULL &&
5970                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
5971                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5972                                         break;
5973                                 }
5974                         } else
5975 #endif
5976 #ifdef INET6
5977                         if (sa->sa_family == AF_INET6) {
5978                                 if (optsize < sizeof(struct sockaddr_in6)) {
5979                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5980                                         error = EINVAL;
5981                                         break;
5982                                 }
5983                                 if (td != NULL &&
5984                                     (error = prison_local_ip6(td->td_ucred,
5985                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
5986                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5987                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5988                                         break;
5989                                 }
5990                         } else
5991 #endif
5992                         {
5993                                 error = EAFNOSUPPORT;
5994                                 break;
5995                         }
5996                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
5997                         break;
5998                 }
5999         case SCTP_BINDX_REM_ADDR:
6000                 {
6001                         struct sockaddr *sa;
6002                         struct thread *td;
6003
6004                         td = (struct thread *)p;
6005
6006                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
6007 #ifdef INET
6008                         if (sa->sa_family == AF_INET) {
6009                                 if (optsize < sizeof(struct sockaddr_in)) {
6010                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6011                                         error = EINVAL;
6012                                         break;
6013                                 }
6014                                 if (td != NULL &&
6015                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6016                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6017                                         break;
6018                                 }
6019                         } else
6020 #endif
6021 #ifdef INET6
6022                         if (sa->sa_family == AF_INET6) {
6023                                 if (optsize < sizeof(struct sockaddr_in6)) {
6024                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6025                                         error = EINVAL;
6026                                         break;
6027                                 }
6028                                 if (td != NULL &&
6029                                     (error = prison_local_ip6(td->td_ucred,
6030                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6031                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6032                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6033                                         break;
6034                                 }
6035                         } else
6036 #endif
6037                         {
6038                                 error = EAFNOSUPPORT;
6039                                 break;
6040                         }
6041                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6042                         break;
6043                 }
6044         case SCTP_EVENT:
6045                 {
6046                         struct sctp_event *event;
6047                         uint32_t event_type;
6048
6049                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6050                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6051                         switch (event->se_type) {
6052                         case SCTP_ASSOC_CHANGE:
6053                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6054                                 break;
6055                         case SCTP_PEER_ADDR_CHANGE:
6056                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6057                                 break;
6058                         case SCTP_REMOTE_ERROR:
6059                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6060                                 break;
6061                         case SCTP_SEND_FAILED:
6062                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6063                                 break;
6064                         case SCTP_SHUTDOWN_EVENT:
6065                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6066                                 break;
6067                         case SCTP_ADAPTATION_INDICATION:
6068                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6069                                 break;
6070                         case SCTP_PARTIAL_DELIVERY_EVENT:
6071                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6072                                 break;
6073                         case SCTP_AUTHENTICATION_EVENT:
6074                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6075                                 break;
6076                         case SCTP_STREAM_RESET_EVENT:
6077                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6078                                 break;
6079                         case SCTP_SENDER_DRY_EVENT:
6080                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6081                                 break;
6082                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6083                                 event_type = 0;
6084                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6085                                 error = ENOTSUP;
6086                                 break;
6087                         case SCTP_ASSOC_RESET_EVENT:
6088                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6089                                 break;
6090                         case SCTP_STREAM_CHANGE_EVENT:
6091                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6092                                 break;
6093                         case SCTP_SEND_FAILED_EVENT:
6094                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6095                                 break;
6096                         default:
6097                                 event_type = 0;
6098                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6099                                 error = EINVAL;
6100                                 break;
6101                         }
6102                         if (event_type > 0) {
6103                                 if (stcb) {
6104                                         if (event->se_on) {
6105                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6106                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6107                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6108                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6109                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6110                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6111                                                         }
6112                                                 }
6113                                         } else {
6114                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6115                                         }
6116                                         SCTP_TCB_UNLOCK(stcb);
6117                                 } else {
6118                                         /*
6119                                          * We don't want to send up a storm
6120                                          * of events, so return an error for
6121                                          * sender dry events
6122                                          */
6123                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6124                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6125                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6126                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6127                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6128                                                 error = ENOTSUP;
6129                                                 break;
6130                                         }
6131                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6132                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6133                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6134                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6135                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6136                                                 SCTP_INP_WLOCK(inp);
6137                                                 if (event->se_on) {
6138                                                         sctp_feature_on(inp, event_type);
6139                                                 } else {
6140                                                         sctp_feature_off(inp, event_type);
6141                                                 }
6142                                                 SCTP_INP_WUNLOCK(inp);
6143                                         }
6144                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6145                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6146                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6147                                                 SCTP_INP_RLOCK(inp);
6148                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6149                                                         SCTP_TCB_LOCK(stcb);
6150                                                         if (event->se_on) {
6151                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6152                                                         } else {
6153                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6154                                                         }
6155                                                         SCTP_TCB_UNLOCK(stcb);
6156                                                 }
6157                                                 SCTP_INP_RUNLOCK(inp);
6158                                         }
6159                                 }
6160                         } else {
6161                                 if (stcb) {
6162                                         SCTP_TCB_UNLOCK(stcb);
6163                                 }
6164                         }
6165                         break;
6166                 }
6167         case SCTP_RECVRCVINFO:
6168                 {
6169                         int *onoff;
6170
6171                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6172                         SCTP_INP_WLOCK(inp);
6173                         if (*onoff != 0) {
6174                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6175                         } else {
6176                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6177                         }
6178                         SCTP_INP_WUNLOCK(inp);
6179                         break;
6180                 }
6181         case SCTP_RECVNXTINFO:
6182                 {
6183                         int *onoff;
6184
6185                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6186                         SCTP_INP_WLOCK(inp);
6187                         if (*onoff != 0) {
6188                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6189                         } else {
6190                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6191                         }
6192                         SCTP_INP_WUNLOCK(inp);
6193                         break;
6194                 }
6195         case SCTP_DEFAULT_SNDINFO:
6196                 {
6197                         struct sctp_sndinfo *info;
6198                         uint16_t policy;
6199
6200                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6201                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6202
6203                         if (stcb) {
6204                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6205                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6206                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6207                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6208                                         stcb->asoc.def_send.sinfo_flags |= policy;
6209                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6210                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6211                                 } else {
6212                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6213                                         error = EINVAL;
6214                                 }
6215                                 SCTP_TCB_UNLOCK(stcb);
6216                         } else {
6217                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6218                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6219                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6220                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6221                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6222                                         SCTP_INP_WLOCK(inp);
6223                                         inp->def_send.sinfo_stream = info->snd_sid;
6224                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6225                                         inp->def_send.sinfo_flags = info->snd_flags;
6226                                         inp->def_send.sinfo_flags |= policy;
6227                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6228                                         inp->def_send.sinfo_context = info->snd_context;
6229                                         SCTP_INP_WUNLOCK(inp);
6230                                 }
6231                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6232                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6233                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6234                                         SCTP_INP_RLOCK(inp);
6235                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6236                                                 SCTP_TCB_LOCK(stcb);
6237                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6238                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6239                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6240                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6241                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6242                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6243                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6244                                                 }
6245                                                 SCTP_TCB_UNLOCK(stcb);
6246                                         }
6247                                         SCTP_INP_RUNLOCK(inp);
6248                                 }
6249                         }
6250                         break;
6251                 }
6252         case SCTP_DEFAULT_PRINFO:
6253                 {
6254                         struct sctp_default_prinfo *info;
6255
6256                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6257                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6258
6259                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6260                                 if (stcb) {
6261                                         SCTP_TCB_UNLOCK(stcb);
6262                                 }
6263                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6264                                 error = EINVAL;
6265                                 break;
6266                         }
6267                         if (stcb) {
6268                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6269                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6270                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6271                                 SCTP_TCB_UNLOCK(stcb);
6272                         } else {
6273                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6274                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6275                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6276                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6277                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6278                                         SCTP_INP_WLOCK(inp);
6279                                         inp->def_send.sinfo_flags &= 0xfff0;
6280                                         inp->def_send.sinfo_flags |= info->pr_policy;
6281                                         inp->def_send.sinfo_timetolive = info->pr_value;
6282                                         SCTP_INP_WUNLOCK(inp);
6283                                 }
6284                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6285                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6286                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6287                                         SCTP_INP_RLOCK(inp);
6288                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6289                                                 SCTP_TCB_LOCK(stcb);
6290                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6291                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6292                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6293                                                 SCTP_TCB_UNLOCK(stcb);
6294                                         }
6295                                         SCTP_INP_RUNLOCK(inp);
6296                                 }
6297                         }
6298                         break;
6299                 }
6300         case SCTP_PEER_ADDR_THLDS:
6301                 /* Applies to the specific association */
6302                 {
6303                         struct sctp_paddrthlds *thlds;
6304                         struct sctp_nets *net;
6305                         struct sockaddr *addr;
6306 #if defined(INET) && defined(INET6)
6307                         struct sockaddr_in sin_store;
6308 #endif
6309
6310                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6311                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6312
6313 #if defined(INET) && defined(INET6)
6314                         if (thlds->spt_address.ss_family == AF_INET6) {
6315                                 struct sockaddr_in6 *sin6;
6316
6317                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6318                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6319                                         in6_sin6_2_sin(&sin_store, sin6);
6320                                         addr = (struct sockaddr *)&sin_store;
6321                                 } else {
6322                                         addr = (struct sockaddr *)&thlds->spt_address;
6323                                 }
6324                         } else {
6325                                 addr = (struct sockaddr *)&thlds->spt_address;
6326                         }
6327 #else
6328                         addr = (struct sockaddr *)&thlds->spt_address;
6329 #endif
6330                         if (stcb != NULL) {
6331                                 net = sctp_findnet(stcb, addr);
6332                         } else {
6333                                 /*
6334                                  * We increment here since
6335                                  * sctp_findassociation_ep_addr() wil do a
6336                                  * decrement if it finds the stcb as long as
6337                                  * the locked tcb (last argument) is NOT a
6338                                  * TCB.. aka NULL.
6339                                  */
6340                                 net = NULL;
6341                                 SCTP_INP_INCR_REF(inp);
6342                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6343                                     &net, NULL, NULL);
6344                                 if (stcb == NULL) {
6345                                         SCTP_INP_DECR_REF(inp);
6346                                 }
6347                         }
6348                         if ((stcb != NULL) && (net == NULL)) {
6349 #ifdef INET
6350                                 if (addr->sa_family == AF_INET) {
6351                                         struct sockaddr_in *sin;
6352
6353                                         sin = (struct sockaddr_in *)addr;
6354                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6355                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6356                                                 SCTP_TCB_UNLOCK(stcb);
6357                                                 error = EINVAL;
6358                                                 break;
6359                                         }
6360                                 } else
6361 #endif
6362 #ifdef INET6
6363                                 if (addr->sa_family == AF_INET6) {
6364                                         struct sockaddr_in6 *sin6;
6365
6366                                         sin6 = (struct sockaddr_in6 *)addr;
6367                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6368                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6369                                                 SCTP_TCB_UNLOCK(stcb);
6370                                                 error = EINVAL;
6371                                                 break;
6372                                         }
6373                                 } else
6374 #endif
6375                                 {
6376                                         error = EAFNOSUPPORT;
6377                                         SCTP_TCB_UNLOCK(stcb);
6378                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6379                                         break;
6380                                 }
6381                         }
6382                         if (thlds->spt_pathcpthld != 0xffff) {
6383                                 if (stcb != NULL) {
6384                                         SCTP_TCB_UNLOCK(stcb);
6385                                 }
6386                                 error = EINVAL;
6387                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6388                                 break;
6389                         }
6390                         if (stcb != NULL) {
6391                                 if (net != NULL) {
6392                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6393                                         net->pf_threshold = thlds->spt_pathpfthld;
6394                                         if (net->dest_state & SCTP_ADDR_PF) {
6395                                                 if ((net->error_count > net->failure_threshold) ||
6396                                                     (net->error_count <= net->pf_threshold)) {
6397                                                         net->dest_state &= ~SCTP_ADDR_PF;
6398                                                 }
6399                                         } else {
6400                                                 if ((net->error_count > net->pf_threshold) &&
6401                                                     (net->error_count <= net->failure_threshold)) {
6402                                                         net->dest_state |= SCTP_ADDR_PF;
6403                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6404                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6405                                                             stcb->sctp_ep, stcb, net,
6406                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6407                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6408                                                 }
6409                                         }
6410                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6411                                                 if (net->error_count > net->failure_threshold) {
6412                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6413                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6414                                                 }
6415                                         } else {
6416                                                 if (net->error_count <= net->failure_threshold) {
6417                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6418                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6419                                                 }
6420                                         }
6421                                 } else {
6422                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6423                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6424                                                 net->pf_threshold = thlds->spt_pathpfthld;
6425                                                 if (net->dest_state & SCTP_ADDR_PF) {
6426                                                         if ((net->error_count > net->failure_threshold) ||
6427                                                             (net->error_count <= net->pf_threshold)) {
6428                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6429                                                         }
6430                                                 } else {
6431                                                         if ((net->error_count > net->pf_threshold) &&
6432                                                             (net->error_count <= net->failure_threshold)) {
6433                                                                 net->dest_state |= SCTP_ADDR_PF;
6434                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6435                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6436                                                                     stcb->sctp_ep, stcb, net,
6437                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6438                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6439                                                         }
6440                                                 }
6441                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6442                                                         if (net->error_count > net->failure_threshold) {
6443                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6444                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6445                                                         }
6446                                                 } else {
6447                                                         if (net->error_count <= net->failure_threshold) {
6448                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6449                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6450                                                         }
6451                                                 }
6452                                         }
6453                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6454                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6455                                 }
6456                                 SCTP_TCB_UNLOCK(stcb);
6457                         } else {
6458                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6459                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6460                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6461                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6462                                         SCTP_INP_WLOCK(inp);
6463                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6464                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6465                                         SCTP_INP_WUNLOCK(inp);
6466                                 } else {
6467                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6468                                         error = EINVAL;
6469                                 }
6470                         }
6471                         break;
6472                 }
6473         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6474                 {
6475                         struct sctp_udpencaps *encaps;
6476                         struct sctp_nets *net;
6477                         struct sockaddr *addr;
6478 #if defined(INET) && defined(INET6)
6479                         struct sockaddr_in sin_store;
6480 #endif
6481
6482                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6483                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6484
6485 #if defined(INET) && defined(INET6)
6486                         if (encaps->sue_address.ss_family == AF_INET6) {
6487                                 struct sockaddr_in6 *sin6;
6488
6489                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6490                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6491                                         in6_sin6_2_sin(&sin_store, sin6);
6492                                         addr = (struct sockaddr *)&sin_store;
6493                                 } else {
6494                                         addr = (struct sockaddr *)&encaps->sue_address;
6495                                 }
6496                         } else {
6497                                 addr = (struct sockaddr *)&encaps->sue_address;
6498                         }
6499 #else
6500                         addr = (struct sockaddr *)&encaps->sue_address;
6501 #endif
6502                         if (stcb != NULL) {
6503                                 net = sctp_findnet(stcb, addr);
6504                         } else {
6505                                 /*
6506                                  * We increment here since
6507                                  * sctp_findassociation_ep_addr() wil do a
6508                                  * decrement if it finds the stcb as long as
6509                                  * the locked tcb (last argument) is NOT a
6510                                  * TCB.. aka NULL.
6511                                  */
6512                                 net = NULL;
6513                                 SCTP_INP_INCR_REF(inp);
6514                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6515                                 if (stcb == NULL) {
6516                                         SCTP_INP_DECR_REF(inp);
6517                                 }
6518                         }
6519                         if ((stcb != NULL) && (net == NULL)) {
6520 #ifdef INET
6521                                 if (addr->sa_family == AF_INET) {
6522                                         struct sockaddr_in *sin;
6523
6524                                         sin = (struct sockaddr_in *)addr;
6525                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6526                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6527                                                 SCTP_TCB_UNLOCK(stcb);
6528                                                 error = EINVAL;
6529                                                 break;
6530                                         }
6531                                 } else
6532 #endif
6533 #ifdef INET6
6534                                 if (addr->sa_family == AF_INET6) {
6535                                         struct sockaddr_in6 *sin6;
6536
6537                                         sin6 = (struct sockaddr_in6 *)addr;
6538                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6539                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6540                                                 SCTP_TCB_UNLOCK(stcb);
6541                                                 error = EINVAL;
6542                                                 break;
6543                                         }
6544                                 } else
6545 #endif
6546                                 {
6547                                         error = EAFNOSUPPORT;
6548                                         SCTP_TCB_UNLOCK(stcb);
6549                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6550                                         break;
6551                                 }
6552                         }
6553
6554                         if (stcb != NULL) {
6555                                 if (net != NULL) {
6556                                         net->port = encaps->sue_port;
6557                                 } else {
6558                                         stcb->asoc.port = encaps->sue_port;
6559                                 }
6560                                 SCTP_TCB_UNLOCK(stcb);
6561                         } else {
6562                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6563                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6564                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6565                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6566                                         SCTP_INP_WLOCK(inp);
6567                                         inp->sctp_ep.port = encaps->sue_port;
6568                                         SCTP_INP_WUNLOCK(inp);
6569                                 } else {
6570                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6571                                         error = EINVAL;
6572                                 }
6573                         }
6574                         break;
6575                 }
6576         case SCTP_ECN_SUPPORTED:
6577                 {
6578                         struct sctp_assoc_value *av;
6579
6580                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6581                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6582
6583                         if (stcb) {
6584                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6585                                 error = EINVAL;
6586                                 SCTP_TCB_UNLOCK(stcb);
6587                         } else {
6588                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6589                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6590                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6591                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6592                                         SCTP_INP_WLOCK(inp);
6593                                         if (av->assoc_value == 0) {
6594                                                 inp->ecn_supported = 0;
6595                                         } else {
6596                                                 inp->ecn_supported = 1;
6597                                         }
6598                                         SCTP_INP_WUNLOCK(inp);
6599                                 } else {
6600                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6601                                         error = EINVAL;
6602                                 }
6603                         }
6604                         break;
6605                 }
6606         case SCTP_PR_SUPPORTED:
6607                 {
6608                         struct sctp_assoc_value *av;
6609
6610                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6611                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6612
6613                         if (stcb) {
6614                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6615                                 error = EINVAL;
6616                                 SCTP_TCB_UNLOCK(stcb);
6617                         } else {
6618                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6619                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6620                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6621                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6622                                         SCTP_INP_WLOCK(inp);
6623                                         if (av->assoc_value == 0) {
6624                                                 inp->prsctp_supported = 0;
6625                                         } else {
6626                                                 inp->prsctp_supported = 1;
6627                                         }
6628                                         SCTP_INP_WUNLOCK(inp);
6629                                 } else {
6630                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6631                                         error = EINVAL;
6632                                 }
6633                         }
6634                         break;
6635                 }
6636         case SCTP_AUTH_SUPPORTED:
6637                 {
6638                         struct sctp_assoc_value *av;
6639
6640                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6641                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6642
6643                         if (stcb) {
6644                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6645                                 error = EINVAL;
6646                                 SCTP_TCB_UNLOCK(stcb);
6647                         } else {
6648                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6649                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6650                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6651                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6652                                         if ((av->assoc_value == 0) &&
6653                                             (inp->asconf_supported == 1)) {
6654                                                 /*
6655                                                  * AUTH is required for
6656                                                  * ASCONF
6657                                                  */
6658                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6659                                                 error = EINVAL;
6660                                         } else {
6661                                                 SCTP_INP_WLOCK(inp);
6662                                                 if (av->assoc_value == 0) {
6663                                                         inp->auth_supported = 0;
6664                                                 } else {
6665                                                         inp->auth_supported = 1;
6666                                                 }
6667                                                 SCTP_INP_WUNLOCK(inp);
6668                                         }
6669                                 } else {
6670                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6671                                         error = EINVAL;
6672                                 }
6673                         }
6674                         break;
6675                 }
6676         case SCTP_ASCONF_SUPPORTED:
6677                 {
6678                         struct sctp_assoc_value *av;
6679
6680                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6681                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6682
6683                         if (stcb) {
6684                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6685                                 error = EINVAL;
6686                                 SCTP_TCB_UNLOCK(stcb);
6687                         } else {
6688                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6689                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6690                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6691                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6692                                         if ((av->assoc_value != 0) &&
6693                                             (inp->auth_supported == 0)) {
6694                                                 /*
6695                                                  * AUTH is required for
6696                                                  * ASCONF
6697                                                  */
6698                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6699                                                 error = EINVAL;
6700                                         } else {
6701                                                 SCTP_INP_WLOCK(inp);
6702                                                 if (av->assoc_value == 0) {
6703                                                         inp->asconf_supported = 0;
6704                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6705                                                             inp->sctp_ep.local_auth_chunks);
6706                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6707                                                             inp->sctp_ep.local_auth_chunks);
6708                                                 } else {
6709                                                         inp->asconf_supported = 1;
6710                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6711                                                             inp->sctp_ep.local_auth_chunks);
6712                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6713                                                             inp->sctp_ep.local_auth_chunks);
6714                                                 }
6715                                                 SCTP_INP_WUNLOCK(inp);
6716                                         }
6717                                 } else {
6718                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6719                                         error = EINVAL;
6720                                 }
6721                         }
6722                         break;
6723                 }
6724         case SCTP_RECONFIG_SUPPORTED:
6725                 {
6726                         struct sctp_assoc_value *av;
6727
6728                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6729                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6730
6731                         if (stcb) {
6732                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6733                                 error = EINVAL;
6734                                 SCTP_TCB_UNLOCK(stcb);
6735                         } else {
6736                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6737                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6738                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6739                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6740                                         SCTP_INP_WLOCK(inp);
6741                                         if (av->assoc_value == 0) {
6742                                                 inp->reconfig_supported = 0;
6743                                         } else {
6744                                                 inp->reconfig_supported = 1;
6745                                         }
6746                                         SCTP_INP_WUNLOCK(inp);
6747                                 } else {
6748                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6749                                         error = EINVAL;
6750                                 }
6751                         }
6752                         break;
6753                 }
6754         case SCTP_NRSACK_SUPPORTED:
6755                 {
6756                         struct sctp_assoc_value *av;
6757
6758                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6759                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6760
6761                         if (stcb) {
6762                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6763                                 error = EINVAL;
6764                                 SCTP_TCB_UNLOCK(stcb);
6765                         } else {
6766                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6767                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6768                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6769                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6770                                         SCTP_INP_WLOCK(inp);
6771                                         if (av->assoc_value == 0) {
6772                                                 inp->nrsack_supported = 0;
6773                                         } else {
6774                                                 inp->nrsack_supported = 1;
6775                                         }
6776                                         SCTP_INP_WUNLOCK(inp);
6777                                 } else {
6778                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6779                                         error = EINVAL;
6780                                 }
6781                         }
6782                         break;
6783                 }
6784         case SCTP_PKTDROP_SUPPORTED:
6785                 {
6786                         struct sctp_assoc_value *av;
6787
6788                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6789                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6790
6791                         if (stcb) {
6792                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6793                                 error = EINVAL;
6794                                 SCTP_TCB_UNLOCK(stcb);
6795                         } else {
6796                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6797                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6798                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6799                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6800                                         SCTP_INP_WLOCK(inp);
6801                                         if (av->assoc_value == 0) {
6802                                                 inp->pktdrop_supported = 0;
6803                                         } else {
6804                                                 inp->pktdrop_supported = 1;
6805                                         }
6806                                         SCTP_INP_WUNLOCK(inp);
6807                                 } else {
6808                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6809                                         error = EINVAL;
6810                                 }
6811                         }
6812                         break;
6813                 }
6814         case SCTP_MAX_CWND:
6815                 {
6816                         struct sctp_assoc_value *av;
6817                         struct sctp_nets *net;
6818
6819                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6820                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6821
6822                         if (stcb) {
6823                                 stcb->asoc.max_cwnd = av->assoc_value;
6824                                 if (stcb->asoc.max_cwnd > 0) {
6825                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6826                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6827                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6828                                                         net->cwnd = stcb->asoc.max_cwnd;
6829                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6830                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6831                                                         }
6832                                                 }
6833                                         }
6834                                 }
6835                                 SCTP_TCB_UNLOCK(stcb);
6836                         } else {
6837                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6838                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6839                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6840                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6841                                         SCTP_INP_WLOCK(inp);
6842                                         inp->max_cwnd = av->assoc_value;
6843                                         SCTP_INP_WUNLOCK(inp);
6844                                 } else {
6845                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6846                                         error = EINVAL;
6847                                 }
6848                         }
6849                         break;
6850                 }
6851         default:
6852                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6853                 error = ENOPROTOOPT;
6854                 break;
6855         }                       /* end switch (opt) */
6856         return (error);
6857 }
6858
6859 int
6860 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6861 {
6862         struct epoch_tracker et;
6863         struct sctp_inpcb *inp;
6864         void *optval = NULL;
6865         void *p;
6866         size_t optsize = 0;
6867         int error = 0;
6868
6869         if ((sopt->sopt_level == SOL_SOCKET) &&
6870             (sopt->sopt_name == SO_SETFIB)) {
6871                 inp = (struct sctp_inpcb *)so->so_pcb;
6872                 if (inp == NULL) {
6873                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6874                         return (EINVAL);
6875                 }
6876                 SCTP_INP_WLOCK(inp);
6877                 inp->fibnum = so->so_fibnum;
6878                 SCTP_INP_WUNLOCK(inp);
6879                 return (0);
6880         }
6881         if (sopt->sopt_level != IPPROTO_SCTP) {
6882                 /* wrong proto level... send back up to IP */
6883 #ifdef INET6
6884                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6885                         error = ip6_ctloutput(so, sopt);
6886 #endif                          /* INET6 */
6887 #if defined(INET) && defined(INET6)
6888                 else
6889 #endif
6890 #ifdef INET
6891                         error = ip_ctloutput(so, sopt);
6892 #endif
6893                 return (error);
6894         }
6895         optsize = sopt->sopt_valsize;
6896         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6897                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6898                 return (ENOBUFS);
6899         }
6900         if (optsize) {
6901                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6902                 if (optval == NULL) {
6903                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6904                         return (ENOBUFS);
6905                 }
6906                 error = sooptcopyin(sopt, optval, optsize, optsize);
6907                 if (error) {
6908                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6909                         goto out;
6910                 }
6911         }
6912         p = (void *)sopt->sopt_td;
6913         if (sopt->sopt_dir == SOPT_SET) {
6914                 NET_EPOCH_ENTER(et);
6915                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6916                 NET_EPOCH_EXIT(et);
6917         } else if (sopt->sopt_dir == SOPT_GET) {
6918                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6919         } else {
6920                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6921                 error = EINVAL;
6922         }
6923         if ((error == 0) && (optval != NULL)) {
6924                 error = sooptcopyout(sopt, optval, optsize);
6925                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6926         } else if (optval != NULL) {
6927                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6928         }
6929 out:
6930         return (error);
6931 }
6932
6933 #ifdef INET
6934 static int
6935 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6936 {
6937         struct epoch_tracker et;
6938         int error = 0;
6939         int create_lock_on = 0;
6940         uint32_t vrf_id;
6941         struct sctp_inpcb *inp;
6942         struct sctp_tcb *stcb = NULL;
6943
6944         inp = (struct sctp_inpcb *)so->so_pcb;
6945         if (inp == NULL) {
6946                 /* I made the same as TCP since we are not setup? */
6947                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6948                 return (ECONNRESET);
6949         }
6950         if (addr == NULL) {
6951                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6952                 return EINVAL;
6953         }
6954
6955         switch (addr->sa_family) {
6956 #ifdef INET6
6957         case AF_INET6:
6958                 {
6959                         struct sockaddr_in6 *sin6;
6960
6961                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6962                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6963                                 return (EINVAL);
6964                         }
6965                         sin6 = (struct sockaddr_in6 *)addr;
6966                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
6967                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6968                                 return (error);
6969                         }
6970                         break;
6971                 }
6972 #endif
6973 #ifdef INET
6974         case AF_INET:
6975                 {
6976                         struct sockaddr_in *sin;
6977
6978                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6979                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6980                                 return (EINVAL);
6981                         }
6982                         sin = (struct sockaddr_in *)addr;
6983                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
6984                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6985                                 return (error);
6986                         }
6987                         break;
6988                 }
6989 #endif
6990         default:
6991                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6992                 return (EAFNOSUPPORT);
6993         }
6994         SCTP_INP_INCR_REF(inp);
6995         SCTP_ASOC_CREATE_LOCK(inp);
6996         create_lock_on = 1;
6997         NET_EPOCH_ENTER(et);
6998
6999         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7000             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7001                 /* Should I really unlock ? */
7002                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7003                 error = EFAULT;
7004                 goto out_now;
7005         }
7006 #ifdef INET6
7007         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7008             (addr->sa_family == AF_INET6)) {
7009                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7010                 error = EINVAL;
7011                 goto out_now;
7012         }
7013 #endif
7014         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7015                 /* Bind a ephemeral port */
7016                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7017                 if (error) {
7018                         goto out_now;
7019                 }
7020         }
7021         /* Now do we connect? */
7022         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7023             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7024                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7025                 error = EINVAL;
7026                 goto out_now;
7027         }
7028         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7029             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7030                 /* We are already connected AND the TCP model */
7031                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7032                 error = EADDRINUSE;
7033                 goto out_now;
7034         }
7035         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7036                 SCTP_INP_RLOCK(inp);
7037                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7038                 SCTP_INP_RUNLOCK(inp);
7039         } else {
7040                 /*
7041                  * We increment here since sctp_findassociation_ep_addr()
7042                  * will do a decrement if it finds the stcb as long as the
7043                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7044                  */
7045                 SCTP_INP_INCR_REF(inp);
7046                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7047                 if (stcb == NULL) {
7048                         SCTP_INP_DECR_REF(inp);
7049                 } else {
7050                         SCTP_TCB_UNLOCK(stcb);
7051                 }
7052         }
7053         if (stcb != NULL) {
7054                 /* Already have or am bring up an association */
7055                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7056                 error = EALREADY;
7057                 goto out_now;
7058         }
7059
7060         vrf_id = inp->def_vrf_id;
7061         /* We are GOOD to go */
7062         stcb = sctp_aloc_assoc_connected(inp, addr, &error, 0, 0, vrf_id,
7063             inp->sctp_ep.pre_open_stream_count,
7064             inp->sctp_ep.port, p,
7065             SCTP_INITIALIZE_AUTH_PARAMS);
7066         if (stcb == NULL) {
7067                 /* Gak! no memory */
7068                 goto out_now;
7069         }
7070         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7071         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7072
7073         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7074         SCTP_TCB_UNLOCK(stcb);
7075 out_now:
7076         NET_EPOCH_EXIT(et);
7077         if (create_lock_on) {
7078                 SCTP_ASOC_CREATE_UNLOCK(inp);
7079         }
7080         SCTP_INP_DECR_REF(inp);
7081         return (error);
7082 }
7083 #endif
7084
7085 int
7086 sctp_listen(struct socket *so, int backlog, struct thread *p)
7087 {
7088         /*
7089          * Note this module depends on the protocol processing being called
7090          * AFTER any socket level flags and backlog are applied to the
7091          * socket. The traditional way that the socket flags are applied is
7092          * AFTER protocol processing. We have made a change to the
7093          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7094          * place if the socket API for SCTP is to work properly.
7095          */
7096
7097         int error = 0;
7098         struct sctp_inpcb *inp;
7099
7100         inp = (struct sctp_inpcb *)so->so_pcb;
7101         if (inp == NULL) {
7102                 /* I made the same as TCP since we are not setup? */
7103                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7104                 return (ECONNRESET);
7105         }
7106         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7107                 /* See if we have a listener */
7108                 struct sctp_inpcb *tinp;
7109                 union sctp_sockstore store;
7110
7111                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7112                         /* not bound all */
7113                         struct sctp_laddr *laddr;
7114
7115                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7116                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7117                                 switch (store.sa.sa_family) {
7118 #ifdef INET
7119                                 case AF_INET:
7120                                         store.sin.sin_port = inp->sctp_lport;
7121                                         break;
7122 #endif
7123 #ifdef INET6
7124                                 case AF_INET6:
7125                                         store.sin6.sin6_port = inp->sctp_lport;
7126                                         break;
7127 #endif
7128                                 default:
7129                                         break;
7130                                 }
7131                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7132                                 if (tinp && (tinp != inp) &&
7133                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7134                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7135                                     (SCTP_IS_LISTENING(tinp))) {
7136                                         /*
7137                                          * we have a listener already and
7138                                          * its not this inp.
7139                                          */
7140                                         SCTP_INP_DECR_REF(tinp);
7141                                         return (EADDRINUSE);
7142                                 } else if (tinp) {
7143                                         SCTP_INP_DECR_REF(tinp);
7144                                 }
7145                         }
7146                 } else {
7147                         /* Setup a local addr bound all */
7148                         memset(&store, 0, sizeof(store));
7149 #ifdef INET6
7150                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7151                                 store.sa.sa_family = AF_INET6;
7152                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7153                         }
7154 #endif
7155 #ifdef INET
7156                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7157                                 store.sa.sa_family = AF_INET;
7158                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7159                         }
7160 #endif
7161                         switch (store.sa.sa_family) {
7162 #ifdef INET
7163                         case AF_INET:
7164                                 store.sin.sin_port = inp->sctp_lport;
7165                                 break;
7166 #endif
7167 #ifdef INET6
7168                         case AF_INET6:
7169                                 store.sin6.sin6_port = inp->sctp_lport;
7170                                 break;
7171 #endif
7172                         default:
7173                                 break;
7174                         }
7175                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7176                         if (tinp && (tinp != inp) &&
7177                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7178                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7179                             (SCTP_IS_LISTENING(tinp))) {
7180                                 /*
7181                                  * we have a listener already and its not
7182                                  * this inp.
7183                                  */
7184                                 SCTP_INP_DECR_REF(tinp);
7185                                 return (EADDRINUSE);
7186                         } else if (tinp) {
7187                                 SCTP_INP_DECR_REF(tinp);
7188                         }
7189                 }
7190         }
7191         SCTP_INP_INFO_WLOCK();
7192         SCTP_INP_WLOCK(inp);
7193 #ifdef SCTP_LOCK_LOGGING
7194         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7195                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7196         }
7197 #endif
7198         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7199             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7200                 /*
7201                  * The unlucky case - We are in the tcp pool with this guy.
7202                  * - Someone else is in the main inp slot. - We must move
7203                  * this guy (the listener) to the main slot - We must then
7204                  * move the guy that was listener to the TCP Pool.
7205                  */
7206                 if (sctp_swap_inpcb_for_listen(inp)) {
7207                         error = EADDRINUSE;
7208                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7209                         goto out;
7210                 }
7211         }
7212         SOCK_LOCK(so);
7213         error = solisten_proto_check(so);
7214         if (error) {
7215                 SOCK_UNLOCK(so);
7216                 goto out;
7217         }
7218         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7219             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7220                 SOCK_UNLOCK(so);
7221                 solisten_proto_abort(so);
7222                 error = EADDRINUSE;
7223                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7224                 goto out;
7225         }
7226         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7227             ((inp->sctp_flags & SCTP_PCB_FLAGS_WAS_CONNECTED) ||
7228             (inp->sctp_flags & SCTP_PCB_FLAGS_WAS_ABORTED))) {
7229                 SOCK_UNLOCK(so);
7230                 solisten_proto_abort(so);
7231                 error = EINVAL;
7232                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7233                 goto out;
7234         }
7235         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7236                 if ((error = sctp_inpcb_bind_locked(inp, NULL, NULL, p))) {
7237                         SOCK_UNLOCK(so);
7238                         solisten_proto_abort(so);
7239                         /* bind error, probably perm */
7240                         goto out;
7241                 }
7242         }
7243         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7244                 solisten_proto(so, backlog);
7245                 SOCK_UNLOCK(so);
7246                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7247         } else {
7248                 solisten_proto_abort(so);
7249                 SOCK_UNLOCK(so);
7250                 if (backlog > 0) {
7251                         inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7252                 } else {
7253                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7254                 }
7255         }
7256 out:
7257         SCTP_INP_WUNLOCK(inp);
7258         SCTP_INP_INFO_WUNLOCK();
7259         return (error);
7260 }
7261
7262 static int sctp_defered_wakeup_cnt = 0;
7263
7264 int
7265 sctp_accept(struct socket *so, struct sockaddr **addr)
7266 {
7267         struct sctp_tcb *stcb;
7268         struct sctp_inpcb *inp;
7269         union sctp_sockstore store;
7270 #ifdef INET6
7271         int error;
7272 #endif
7273         inp = (struct sctp_inpcb *)so->so_pcb;
7274
7275         if (inp == NULL) {
7276                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7277                 return (ECONNRESET);
7278         }
7279         SCTP_INP_WLOCK(inp);
7280         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7281                 SCTP_INP_WUNLOCK(inp);
7282                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7283                 return (EOPNOTSUPP);
7284         }
7285         if (so->so_state & SS_ISDISCONNECTED) {
7286                 SCTP_INP_WUNLOCK(inp);
7287                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7288                 return (ECONNABORTED);
7289         }
7290         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7291         if (stcb == NULL) {
7292                 SCTP_INP_WUNLOCK(inp);
7293                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7294                 return (ECONNRESET);
7295         }
7296         SCTP_TCB_LOCK(stcb);
7297         store = stcb->asoc.primary_destination->ro._l_addr;
7298         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7299         /* Wake any delayed sleep action */
7300         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7301                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7302                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7303                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7304                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7305                         if (sowriteable(inp->sctp_socket)) {
7306                                 sowwakeup_locked(inp->sctp_socket);
7307                         } else {
7308                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7309                         }
7310                 }
7311                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7312                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7313                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7314                         if (soreadable(inp->sctp_socket)) {
7315                                 sctp_defered_wakeup_cnt++;
7316                                 sorwakeup_locked(inp->sctp_socket);
7317                         } else {
7318                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7319                         }
7320                 }
7321         }
7322         SCTP_INP_WUNLOCK(inp);
7323         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7324                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7325                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7326         } else {
7327                 SCTP_TCB_UNLOCK(stcb);
7328         }
7329         switch (store.sa.sa_family) {
7330 #ifdef INET
7331         case AF_INET:
7332                 {
7333                         struct sockaddr_in *sin;
7334
7335                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7336                         if (sin == NULL)
7337                                 return (ENOMEM);
7338                         sin->sin_family = AF_INET;
7339                         sin->sin_len = sizeof(*sin);
7340                         sin->sin_port = store.sin.sin_port;
7341                         sin->sin_addr = store.sin.sin_addr;
7342                         *addr = (struct sockaddr *)sin;
7343                         break;
7344                 }
7345 #endif
7346 #ifdef INET6
7347         case AF_INET6:
7348                 {
7349                         struct sockaddr_in6 *sin6;
7350
7351                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7352                         if (sin6 == NULL)
7353                                 return (ENOMEM);
7354                         sin6->sin6_family = AF_INET6;
7355                         sin6->sin6_len = sizeof(*sin6);
7356                         sin6->sin6_port = store.sin6.sin6_port;
7357                         sin6->sin6_addr = store.sin6.sin6_addr;
7358                         if ((error = sa6_recoverscope(sin6)) != 0) {
7359                                 SCTP_FREE_SONAME(sin6);
7360                                 return (error);
7361                         }
7362                         *addr = (struct sockaddr *)sin6;
7363                         break;
7364                 }
7365 #endif
7366         default:
7367                 /* TSNH */
7368                 break;
7369         }
7370         return (0);
7371 }
7372
7373 #ifdef INET
7374 int
7375 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7376 {
7377         struct sockaddr_in *sin;
7378         uint32_t vrf_id;
7379         struct sctp_inpcb *inp;
7380         struct sctp_ifa *sctp_ifa;
7381
7382         /*
7383          * Do the malloc first in case it blocks.
7384          */
7385         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7386         if (sin == NULL)
7387                 return (ENOMEM);
7388         sin->sin_family = AF_INET;
7389         sin->sin_len = sizeof(*sin);
7390         inp = (struct sctp_inpcb *)so->so_pcb;
7391         if (!inp) {
7392                 SCTP_FREE_SONAME(sin);
7393                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7394                 return (ECONNRESET);
7395         }
7396         SCTP_INP_RLOCK(inp);
7397         sin->sin_port = inp->sctp_lport;
7398         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7399                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7400                         struct sctp_tcb *stcb;
7401                         struct sockaddr_in *sin_a;
7402                         struct sctp_nets *net;
7403                         int fnd;
7404
7405                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7406                         if (stcb == NULL) {
7407                                 goto notConn;
7408                         }
7409                         fnd = 0;
7410                         sin_a = NULL;
7411                         SCTP_TCB_LOCK(stcb);
7412                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7413                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7414                                 if (sin_a == NULL)
7415                                         /* this will make coverity happy */
7416                                         continue;
7417
7418                                 if (sin_a->sin_family == AF_INET) {
7419                                         fnd = 1;
7420                                         break;
7421                                 }
7422                         }
7423                         if ((!fnd) || (sin_a == NULL)) {
7424                                 /* punt */
7425                                 SCTP_TCB_UNLOCK(stcb);
7426                                 goto notConn;
7427                         }
7428
7429                         vrf_id = inp->def_vrf_id;
7430                         sctp_ifa = sctp_source_address_selection(inp,
7431                             stcb,
7432                             (sctp_route_t *)&net->ro,
7433                             net, 0, vrf_id);
7434                         if (sctp_ifa) {
7435                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7436                                 sctp_free_ifa(sctp_ifa);
7437                         }
7438                         SCTP_TCB_UNLOCK(stcb);
7439                 } else {
7440                         /* For the bound all case you get back 0 */
7441         notConn:
7442                         sin->sin_addr.s_addr = 0;
7443                 }
7444
7445         } else {
7446                 /* Take the first IPv4 address in the list */
7447                 struct sctp_laddr *laddr;
7448                 int fnd = 0;
7449
7450                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7451                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7452                                 struct sockaddr_in *sin_a;
7453
7454                                 sin_a = &laddr->ifa->address.sin;
7455                                 sin->sin_addr = sin_a->sin_addr;
7456                                 fnd = 1;
7457                                 break;
7458                         }
7459                 }
7460                 if (!fnd) {
7461                         SCTP_FREE_SONAME(sin);
7462                         SCTP_INP_RUNLOCK(inp);
7463                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7464                         return (ENOENT);
7465                 }
7466         }
7467         SCTP_INP_RUNLOCK(inp);
7468         (*addr) = (struct sockaddr *)sin;
7469         return (0);
7470 }
7471
7472 int
7473 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7474 {
7475         struct sockaddr_in *sin;
7476         int fnd;
7477         struct sockaddr_in *sin_a;
7478         struct sctp_inpcb *inp;
7479         struct sctp_tcb *stcb;
7480         struct sctp_nets *net;
7481
7482         /* Do the malloc first in case it blocks. */
7483         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7484         if (sin == NULL)
7485                 return (ENOMEM);
7486         sin->sin_family = AF_INET;
7487         sin->sin_len = sizeof(*sin);
7488
7489         inp = (struct sctp_inpcb *)so->so_pcb;
7490         if ((inp == NULL) ||
7491             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7492                 /* UDP type and listeners will drop out here */
7493                 SCTP_FREE_SONAME(sin);
7494                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7495                 return (ENOTCONN);
7496         }
7497         SCTP_INP_RLOCK(inp);
7498         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7499         if (stcb) {
7500                 SCTP_TCB_LOCK(stcb);
7501         }
7502         SCTP_INP_RUNLOCK(inp);
7503         if (stcb == NULL) {
7504                 SCTP_FREE_SONAME(sin);
7505                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7506                 return (ECONNRESET);
7507         }
7508         fnd = 0;
7509         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7510                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7511                 if (sin_a->sin_family == AF_INET) {
7512                         fnd = 1;
7513                         sin->sin_port = stcb->rport;
7514                         sin->sin_addr = sin_a->sin_addr;
7515                         break;
7516                 }
7517         }
7518         SCTP_TCB_UNLOCK(stcb);
7519         if (!fnd) {
7520                 /* No IPv4 address */
7521                 SCTP_FREE_SONAME(sin);
7522                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7523                 return (ENOENT);
7524         }
7525         (*addr) = (struct sockaddr *)sin;
7526         return (0);
7527 }
7528
7529 #define SCTP_PROTOSW                                            \
7530         .pr_protocol =  IPPROTO_SCTP,                           \
7531         .pr_ctloutput = sctp_ctloutput,                         \
7532         .pr_abort =     sctp_abort,                             \
7533         .pr_accept =    sctp_accept,                            \
7534         .pr_attach =    sctp_attach,                            \
7535         .pr_bind =      sctp_bind,                              \
7536         .pr_connect =   sctp_connect,                           \
7537         .pr_control =   in_control,                             \
7538         .pr_close =     sctp_close,                             \
7539         .pr_detach =    sctp_close,                             \
7540         .pr_sopoll =    sopoll_generic,                         \
7541         .pr_flush =     sctp_flush,                             \
7542         .pr_disconnect = sctp_disconnect,                       \
7543         .pr_listen =    sctp_listen,                            \
7544         .pr_peeraddr =  sctp_peeraddr,                          \
7545         .pr_send =      sctp_sendm,                             \
7546         .pr_shutdown =  sctp_shutdown,                          \
7547         .pr_sockaddr =  sctp_ingetaddr,                         \
7548         .pr_sosend =    sctp_sosend,                            \
7549         .pr_soreceive = sctp_soreceive                          \
7550
7551 struct protosw sctp_seqpacket_protosw = {
7552         .pr_type =      SOCK_SEQPACKET,
7553         .pr_flags =     PR_WANTRCVD,
7554         SCTP_PROTOSW
7555 };
7556
7557 struct protosw sctp_stream_protosw = {
7558         .pr_type =      SOCK_STREAM,
7559         .pr_flags =     PR_CONNREQUIRED | PR_WANTRCVD,
7560         SCTP_PROTOSW
7561 };
7562 #endif