sys/netinet/sctp_usrreq.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include <netinet/sctp_os.h>
  39 #include <sys/proc.h>
  40 #include <netinet/sctp_pcb.h>
  41 #include <netinet/sctp_header.h>
  42 #include <netinet/sctp_var.h>
  43 #ifdef INET6
  44 #include <netinet6/sctp6_var.h>
  45 #endif
  46 #include <netinet/sctp_sysctl.h>
  47 #include <netinet/sctp_output.h>
  48 #include <netinet/sctp_uio.h>
  49 #include <netinet/sctp_asconf.h>
  50 #include <netinet/sctputil.h>
  51 #include <netinet/sctp_indata.h>
  52 #include <netinet/sctp_timer.h>
  53 #include <netinet/sctp_auth.h>
  54 #include <netinet/sctp_bsd_addr.h>
  55 #include <netinet/udp.h>
  56 #include <sys/eventhandler.h>
  57
  58 extern const struct sctp_cc_functions sctp_cc_functions[];
  59 extern const struct sctp_ss_functions sctp_ss_functions[];
  60
  61 void
  62 sctp_init(void)
  63 {
  64         u_long sb_max_adj;
  65
  66         /* Initialize and modify the sysctled variables */
  67         sctp_init_sysctls();
  68         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  69                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  70         /*
  71          * Allow a user to take no more than 1/2 the number of clusters or
  72          * the SB_MAX, whichever is smaller, for the send window.
  73          */
  74         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  75         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  76             (((uint32_t)nmbclusters / 2) * 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 #ifdef VIMAGE
  96 static void
  97 sctp_finish(void *unused __unused)
  98 {
  99         EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
 100         sctp_pcb_finish();
 101 }
 102
 103 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 104 #endif
 105
 106 void
 107 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint32_t mtu, bool resend)
 108 {
 109         struct sctp_association *asoc;
 110         struct sctp_tmit_chunk *chk;
 111         uint32_t overhead;
 112
 113         asoc = &stcb->asoc;
 114         KASSERT(mtu < asoc->smallest_mtu,
 115             ("Currently only reducing association MTU %u supported (MTU %u)",
 116             asoc->smallest_mtu, mtu));
 117         asoc->smallest_mtu = mtu;
 118         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
 119                 overhead = SCTP_MIN_OVERHEAD;
 120         } else {
 121                 overhead = SCTP_MIN_V4_OVERHEAD;
 122         }
 123         if (asoc->idata_supported) {
 124                 if (sctp_auth_is_required_chunk(SCTP_IDATA, asoc->peer_auth_chunks)) {
 125                         overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
 126                 }
 127         } else {
 128                 if (sctp_auth_is_required_chunk(SCTP_DATA, asoc->peer_auth_chunks)) {
 129                         overhead += sctp_get_auth_chunk_len(asoc->peer_hmac_id);
 130                 }
 131         }
 132         KASSERT(overhead % 4 == 0,
 133             ("overhead (%u) not a multiple of 4", overhead));
 134         TAILQ_FOREACH(chk, &asoc->send_queue, sctp_next) {
 135                 if (((uint32_t)chk->send_size + overhead) > mtu) {
 136                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 137                 }
 138         }
 139         TAILQ_FOREACH(chk, &asoc->sent_queue, sctp_next) {
 140                 if (((uint32_t)chk->send_size + overhead) > mtu) {
 141                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 142                         if (resend && chk->sent < SCTP_DATAGRAM_RESEND) {
 143                                 /*
 144                                  * If requested, mark the chunk for
 145                                  * immediate resend, since we sent it being
 146                                  * too big.
 147                                  */
 148                                 sctp_flight_size_decrease(chk);
 149                                 sctp_total_flight_decrease(stcb, chk);
 150                                 chk->sent = SCTP_DATAGRAM_RESEND;
 151                                 sctp_ucount_incr(asoc->sent_queue_retran_cnt);
 152                                 chk->rec.data.doing_fast_retransmit = 0;
 153                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 154                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 155                                             chk->whoTo->flight_size,
 156                                             chk->book_size,
 157                                             (uint32_t)(uintptr_t)chk->whoTo,
 158                                             chk->rec.data.tsn);
 159                                 }
 160                                 /* Clear any time, so NO RTT is being done. */
 161                                 if (chk->do_rtt == 1) {
 162                                         chk->do_rtt = 0;
 163                                         chk->whoTo->rto_needed = 1;
 164                                 }
 165                         }
 166                 }
 167         }
 168 }
 169
 170 #ifdef INET
 171 void
 172 sctp_notify(struct sctp_inpcb *inp,
 173     struct sctp_tcb *stcb,
 174     struct sctp_nets *net,
 175     uint8_t icmp_type,
 176     uint8_t icmp_code,
 177     uint16_t ip_len,
 178     uint32_t next_mtu)
 179 {
 180         int timer_stopped;
 181
 182         if (icmp_type != ICMP_UNREACH) {
 183                 /* We only care about unreachable */
 184                 SCTP_TCB_UNLOCK(stcb);
 185                 return;
 186         }
 187         if ((icmp_code == ICMP_UNREACH_NET) ||
 188             (icmp_code == ICMP_UNREACH_HOST) ||
 189             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 190             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 191             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 192             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 193             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 194             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 195                 /* Mark the net unreachable. */
 196                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 197                         /* OK, that destination is NOT reachable. */
 198                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 199                         net->dest_state &= ~SCTP_ADDR_PF;
 200                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 201                             stcb, 0,
 202                             (void *)net, SCTP_SO_NOT_LOCKED);
 203                 }
 204                 SCTP_TCB_UNLOCK(stcb);
 205         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 206             (icmp_code == ICMP_UNREACH_PORT)) {
 207                 /* Treat it like an ABORT. */
 208                 sctp_abort_notification(stcb, true, false, 0, NULL, SCTP_SO_NOT_LOCKED);
 209                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 210                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 211                 /* no need to unlock here, since the TCB is gone */
 212         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 213                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 214                         SCTP_TCB_UNLOCK(stcb);
 215                         return;
 216                 }
 217                 /* Find the next (smaller) MTU */
 218                 if (next_mtu == 0) {
 219                         /*
 220                          * Old type router that does not tell us what the
 221                          * next MTU is. Rats we will have to guess (in a
 222                          * educated fashion of course).
 223                          */
 224                         next_mtu = sctp_get_prev_mtu(ip_len);
 225                 }
 226                 /* Stop the PMTU timer. */
 227                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 228                         timer_stopped = 1;
 229                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 230                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 231                 } else {
 232                         timer_stopped = 0;
 233                 }
 234                 /* Update the path MTU. */
 235                 if (net->port) {
 236                         next_mtu -= sizeof(struct udphdr);
 237                 }
 238                 if (net->mtu > next_mtu) {
 239                         net->mtu = next_mtu;
 240                         if (net->port) {
 241                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 242                         } else {
 243                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 244                         }
 245                 }
 246                 /* Update the association MTU */
 247                 if (stcb->asoc.smallest_mtu > next_mtu) {
 248                         sctp_pathmtu_adjustment(stcb, next_mtu, true);
 249                 }
 250                 /* Finally, start the PMTU timer if it was running before. */
 251                 if (timer_stopped) {
 252                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 253                 }
 254                 SCTP_TCB_UNLOCK(stcb);
 255         } else {
 256                 SCTP_TCB_UNLOCK(stcb);
 257         }
 258 }
 259
 260 void
 261 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 262 {
 263         struct ip *outer_ip;
 264         struct ip *inner_ip;
 265         struct sctphdr *sh;
 266         struct icmp *icmp;
 267         struct sctp_inpcb *inp;
 268         struct sctp_tcb *stcb;
 269         struct sctp_nets *net;
 270         struct sctp_init_chunk *ch;
 271         struct sockaddr_in src, dst;
 272
 273         if (sa->sa_family != AF_INET ||
 274             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 275                 return;
 276         }
 277         if (PRC_IS_REDIRECT(cmd)) {
 278                 vip = NULL;
 279         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 280                 return;
 281         }
 282         if (vip != NULL) {
 283                 inner_ip = (struct ip *)vip;
 284                 icmp = (struct icmp *)((caddr_t)inner_ip -
 285                     (sizeof(struct icmp) - sizeof(struct ip)));
 286                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 287                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 288                 memset(&src, 0, sizeof(struct sockaddr_in));
 289                 src.sin_family = AF_INET;
 290                 src.sin_len = sizeof(struct sockaddr_in);
 291                 src.sin_port = sh->src_port;
 292                 src.sin_addr = inner_ip->ip_src;
 293                 memset(&dst, 0, sizeof(struct sockaddr_in));
 294                 dst.sin_family = AF_INET;
 295                 dst.sin_len = sizeof(struct sockaddr_in);
 296                 dst.sin_port = sh->dest_port;
 297                 dst.sin_addr = inner_ip->ip_dst;
 298                 /*
 299                  * 'dst' holds the dest of the packet that failed to be
 300                  * sent. 'src' holds our local endpoint address. Thus we
 301                  * reverse the dst and the src in the lookup.
 302                  */
 303                 inp = NULL;
 304                 net = NULL;
 305                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 306                     (struct sockaddr *)&src,
 307                     &inp, &net, 1,
 308                     SCTP_DEFAULT_VRFID);
 309                 if ((stcb != NULL) &&
 310                     (net != NULL) &&
 311                     (inp != NULL)) {
 312                         /* Check the verification tag */
 313                         if (ntohl(sh->v_tag) != 0) {
 314                                 /*
 315                                  * This must be the verification tag used
 316                                  * for sending out packets. We don't
 317                                  * consider packets reflecting the
 318                                  * verification tag.
 319                                  */
 320                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 321                                         SCTP_TCB_UNLOCK(stcb);
 322                                         return;
 323                                 }
 324                         } else {
 325                                 if (ntohs(outer_ip->ip_len) >=
 326                                     sizeof(struct ip) +
 327                                     8 + (inner_ip->ip_hl << 2) + 20) {
 328                                         /*
 329                                          * In this case we can check if we
 330                                          * got an INIT chunk and if the
 331                                          * initiate tag matches.
 332                                          */
 333                                         ch = (struct sctp_init_chunk *)(sh + 1);
 334                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 335                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 336                                                 SCTP_TCB_UNLOCK(stcb);
 337                                                 return;
 338                                         }
 339                                 } else {
 340                                         SCTP_TCB_UNLOCK(stcb);
 341                                         return;
 342                                 }
 343                         }
 344                         sctp_notify(inp, stcb, net,
 345                             icmp->icmp_type,
 346                             icmp->icmp_code,
 347                             ntohs(inner_ip->ip_len),
 348                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 349                 } else {
 350                         if ((stcb == NULL) && (inp != NULL)) {
 351                                 /* reduce ref-count */
 352                                 SCTP_INP_WLOCK(inp);
 353                                 SCTP_INP_DECR_REF(inp);
 354                                 SCTP_INP_WUNLOCK(inp);
 355                         }
 356                         if (stcb) {
 357                                 SCTP_TCB_UNLOCK(stcb);
 358                         }
 359                 }
 360         }
 361         return;
 362 }
 363 #endif
 364
 365 static int
 366 sctp_getcred(SYSCTL_HANDLER_ARGS)
 367 {
 368         struct xucred xuc;
 369         struct sockaddr_in addrs[2];
 370         struct sctp_inpcb *inp;
 371         struct sctp_nets *net;
 372         struct sctp_tcb *stcb;
 373         int error;
 374         uint32_t vrf_id;
 375
 376         /* FIX, for non-bsd is this right? */
 377         vrf_id = SCTP_DEFAULT_VRFID;
 378
 379         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 380
 381         if (error)
 382                 return (error);
 383
 384         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 385         if (error)
 386                 return (error);
 387
 388         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 389             sintosa(&addrs[0]),
 390             &inp, &net, 1, vrf_id);
 391         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 392                 if ((inp != NULL) && (stcb == NULL)) {
 393                         /* reduce ref-count */
 394                         SCTP_INP_WLOCK(inp);
 395                         SCTP_INP_DECR_REF(inp);
 396                         goto cred_can_cont;
 397                 }
 398
 399                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 400                 error = ENOENT;
 401                 goto out;
 402         }
 403         SCTP_TCB_UNLOCK(stcb);
 404         /*
 405          * We use the write lock here, only since in the error leg we need
 406          * it. If we used RLOCK, then we would have to
 407          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 408          * Better to use higher wlock.
 409          */
 410         SCTP_INP_WLOCK(inp);
 411 cred_can_cont:
 412         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 413         if (error) {
 414                 SCTP_INP_WUNLOCK(inp);
 415                 goto out;
 416         }
 417         cru2x(inp->sctp_socket->so_cred, &xuc);
 418         SCTP_INP_WUNLOCK(inp);
 419         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 420 out:
 421         return (error);
 422 }
 423
 424 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred,
 425     CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 426     0, 0, sctp_getcred, "S,ucred",
 427     "Get the ucred of a SCTP connection");
 428
 429 #ifdef INET
 430 static void
 431 sctp_abort(struct socket *so)
 432 {
 433         struct epoch_tracker et;
 434         struct sctp_inpcb *inp;
 435
 436         inp = (struct sctp_inpcb *)so->so_pcb;
 437         if (inp == NULL) {
 438                 return;
 439         }
 440
 441         SCTP_INP_WLOCK(inp);
 442         NET_EPOCH_ENTER(et);
 443 #ifdef SCTP_LOG_CLOSING
 444         sctp_log_closing(inp, NULL, 17);
 445 #endif
 446         if (((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0)) {
 447                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 448 #ifdef SCTP_LOG_CLOSING
 449                 sctp_log_closing(inp, NULL, 16);
 450 #endif
 451                 SCTP_INP_WUNLOCK(inp);
 452                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 453                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 454                 SOCK_LOCK(so);
 455                 SCTP_SB_CLEAR(so->so_snd);
 456                 /*
 457                  * same for the rcv ones, they are only here for the
 458                  * accounting/select.
 459                  */
 460                 SCTP_SB_CLEAR(so->so_rcv);
 461
 462                 /* Now null out the reference, we are completely detached. */
 463                 so->so_pcb = NULL;
 464                 SOCK_UNLOCK(so);
 465         } else {
 466                 SCTP_INP_WUNLOCK(inp);
 467         }
 468         NET_EPOCH_EXIT(et);
 469 }
 470
 471 static int
 472 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 473 {
 474         struct sctp_inpcb *inp;
 475         struct inpcb *ip_inp;
 476         int error;
 477         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 478
 479         inp = (struct sctp_inpcb *)so->so_pcb;
 480         if (inp != NULL) {
 481                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 482                 return (EINVAL);
 483         }
 484         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 485                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 486                 if (error) {
 487                         return (error);
 488                 }
 489         }
 490         error = sctp_inpcb_alloc(so, vrf_id);
 491         if (error) {
 492                 return (error);
 493         }
 494         inp = (struct sctp_inpcb *)so->so_pcb;
 495         SCTP_INP_WLOCK(inp);
 496         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 497         ip_inp = &inp->ip_inp.inp;
 498         ip_inp->inp_vflag |= INP_IPV4;
 499         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 500         SCTP_INP_WUNLOCK(inp);
 501         return (0);
 502 }
 503
 504 static int
 505 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 506 {
 507         struct sctp_inpcb *inp;
 508
 509         inp = (struct sctp_inpcb *)so->so_pcb;
 510         if (inp == NULL) {
 511                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 512                 return (EINVAL);
 513         }
 514         if (addr != NULL) {
 515                 if ((addr->sa_family != AF_INET) ||
 516                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 517                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 518                         return (EINVAL);
 519                 }
 520         }
 521         return (sctp_inpcb_bind(so, addr, NULL, p));
 522 }
 523
 524 #endif
 525 void
 526 sctp_close(struct socket *so)
 527 {
 528         struct epoch_tracker et;
 529         struct sctp_inpcb *inp;
 530
 531         inp = (struct sctp_inpcb *)so->so_pcb;
 532         if (inp == NULL)
 533                 return;
 534
 535         /*
 536          * Inform all the lower layer assoc that we are done.
 537          */
 538         SCTP_INP_WLOCK(inp);
 539         NET_EPOCH_ENTER(et);
 540 #ifdef SCTP_LOG_CLOSING
 541         sctp_log_closing(inp, NULL, 17);
 542 #endif
 543         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 544                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 545                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 546                     (so->so_rcv.sb_cc > 0)) {
 547 #ifdef SCTP_LOG_CLOSING
 548                         sctp_log_closing(inp, NULL, 13);
 549 #endif
 550                         SCTP_INP_WUNLOCK(inp);
 551                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 552                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 553                 } else {
 554 #ifdef SCTP_LOG_CLOSING
 555                         sctp_log_closing(inp, NULL, 14);
 556 #endif
 557                         SCTP_INP_WUNLOCK(inp);
 558                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 559                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 560                 }
 561                 /*
 562                  * The socket is now detached, no matter what the state of
 563                  * the SCTP association.
 564                  */
 565                 SOCK_LOCK(so);
 566                 SCTP_SB_CLEAR(so->so_snd);
 567                 /*
 568                  * same for the rcv ones, they are only here for the
 569                  * accounting/select.
 570                  */
 571                 SCTP_SB_CLEAR(so->so_rcv);
 572
 573                 /* Now null out the reference, we are completely detached. */
 574                 so->so_pcb = NULL;
 575                 SOCK_UNLOCK(so);
 576         } else {
 577                 SCTP_INP_WUNLOCK(inp);
 578         }
 579         NET_EPOCH_EXIT(et);
 580 }
 581
 582 int
 583 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 584     struct mbuf *control, struct thread *p);
 585
 586 int
 587 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 588     struct mbuf *control, struct thread *p)
 589 {
 590         struct sctp_inpcb *inp;
 591         int error;
 592
 593         inp = (struct sctp_inpcb *)so->so_pcb;
 594         if (inp == NULL) {
 595                 if (control) {
 596                         sctp_m_freem(control);
 597                         control = NULL;
 598                 }
 599                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 600                 sctp_m_freem(m);
 601                 return (EINVAL);
 602         }
 603         /* Got to have an to address if we are NOT a connected socket */
 604         if ((addr == NULL) &&
 605             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 606             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 607                 goto connected_type;
 608         }
 609
 610         error = 0;
 611         if (addr == NULL) {
 612                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 613                 error = EDESTADDRREQ;
 614         } else if (addr->sa_family != AF_INET) {
 615                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 616                 error = EAFNOSUPPORT;
 617         } else if (addr->sa_len != sizeof(struct sockaddr_in)) {
 618                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 619                 error = EINVAL;
 620         }
 621         if (error != 0) {
 622                 sctp_m_freem(m);
 623                 if (control) {
 624                         sctp_m_freem(control);
 625                         control = NULL;
 626                 }
 627                 return (error);
 628         }
 629 connected_type:
 630         /* now what about control */
 631         if (control) {
 632                 if (inp->control) {
 633                         sctp_m_freem(inp->control);
 634                         inp->control = NULL;
 635                 }
 636                 inp->control = control;
 637         }
 638         /* Place the data */
 639         if (inp->pkt) {
 640                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 641                 inp->pkt_last = m;
 642         } else {
 643                 inp->pkt_last = inp->pkt = m;
 644         }
 645         if (
 646         /* FreeBSD uses a flag passed */
 647             ((flags & PRUS_MORETOCOME) == 0)
 648             ) {
 649                 /*
 650                  * note with the current version this code will only be used
 651                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 652                  * re-defining sosend to use the sctp_sosend. One can
 653                  * optionally switch back to this code (by changing back the
 654                  * definitions) but this is not advisable. This code is used
 655                  * by FreeBSD when sending a file with sendfile() though.
 656                  */
 657                 struct epoch_tracker et;
 658                 int ret;
 659
 660                 NET_EPOCH_ENTER(et);
 661                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 662                 NET_EPOCH_EXIT(et);
 663                 inp->pkt = NULL;
 664                 inp->control = NULL;
 665                 return (ret);
 666         } else {
 667                 return (0);
 668         }
 669 }
 670
 671 int
 672 sctp_disconnect(struct socket *so)
 673 {
 674         struct sctp_inpcb *inp;
 675
 676         inp = (struct sctp_inpcb *)so->so_pcb;
 677         if (inp == NULL) {
 678                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 679                 return (ENOTCONN);
 680         }
 681         SCTP_INP_RLOCK(inp);
 682         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 683             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 684                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 685                         /* No connection */
 686                         SCTP_INP_RUNLOCK(inp);
 687                         return (0);
 688                 } else {
 689                         struct epoch_tracker et;
 690                         struct sctp_association *asoc;
 691                         struct sctp_tcb *stcb;
 692
 693                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 694                         if (stcb == NULL) {
 695                                 SCTP_INP_RUNLOCK(inp);
 696                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 697                                 return (EINVAL);
 698                         }
 699                         SCTP_TCB_LOCK(stcb);
 700                         asoc = &stcb->asoc;
 701                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 702                                 /* We are about to be freed, out of here */
 703                                 SCTP_TCB_UNLOCK(stcb);
 704                                 SCTP_INP_RUNLOCK(inp);
 705                                 return (0);
 706                         }
 707                         NET_EPOCH_ENTER(et);
 708                         if (((so->so_options & SO_LINGER) &&
 709                             (so->so_linger == 0)) ||
 710                             (so->so_rcv.sb_cc > 0)) {
 711                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 712                                         /* Left with Data unread */
 713                                         struct mbuf *op_err;
 714
 715                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 716                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 717                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 718                                 }
 719                                 SCTP_INP_RUNLOCK(inp);
 720                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 721                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 722                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 723                                 }
 724                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 725                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 726                                 /* No unlock tcb assoc is gone */
 727                                 NET_EPOCH_EXIT(et);
 728                                 return (0);
 729                         }
 730                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 731                             TAILQ_EMPTY(&asoc->sent_queue) &&
 732                             (asoc->stream_queue_cnt == 0)) {
 733                                 /* there is nothing queued to send, so done */
 734                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 735                                         goto abort_anyway;
 736                                 }
 737                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 738                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 739                                         /* only send SHUTDOWN 1st time thru */
 740                                         struct sctp_nets *netp;
 741
 742                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 743                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 744                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 745                                         }
 746                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 747                                         sctp_stop_timers_for_shutdown(stcb);
 748                                         if (stcb->asoc.alternate) {
 749                                                 netp = stcb->asoc.alternate;
 750                                         } else {
 751                                                 netp = stcb->asoc.primary_destination;
 752                                         }
 753                                         sctp_send_shutdown(stcb, netp);
 754                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 755                                             stcb->sctp_ep, stcb, netp);
 756                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 757                                             stcb->sctp_ep, stcb, NULL);
 758                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 759                                 }
 760                         } else {
 761                                 /*
 762                                  * we still got (or just got) data to send,
 763                                  * so set SHUTDOWN_PENDING
 764                                  */
 765                                 /*
 766                                  * XXX sockets draft says that SCTP_EOF
 767                                  * should be sent with no data. currently,
 768                                  * we will allow user data to be sent first
 769                                  * and move to SHUTDOWN-PENDING
 770                                  */
 771                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 772                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 773                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 774                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 775                                 }
 776                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 777                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 778                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 779                                         struct mbuf *op_err;
 780
 781                         abort_anyway:
 782                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 783                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 784                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 785                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 786                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 787                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 788                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 789                                         }
 790                                         SCTP_INP_RUNLOCK(inp);
 791                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 792                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 793                                         NET_EPOCH_EXIT(et);
 794                                         return (0);
 795                                 } else {
 796                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 797                                 }
 798                         }
 799                         soisdisconnecting(so);
 800                         NET_EPOCH_EXIT(et);
 801                         SCTP_TCB_UNLOCK(stcb);
 802                         SCTP_INP_RUNLOCK(inp);
 803                         return (0);
 804                 }
 805                 /* not reached */
 806         } else {
 807                 /* UDP model does not support this */
 808                 SCTP_INP_RUNLOCK(inp);
 809                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 810                 return (EOPNOTSUPP);
 811         }
 812 }
 813
 814 int
 815 sctp_flush(struct socket *so, int how)
 816 {
 817         /*
 818          * We will just clear out the values and let subsequent close clear
 819          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 820          * they will not be able to read the data, the socket will block
 821          * that from happening.
 822          */
 823         struct sctp_inpcb *inp;
 824
 825         inp = (struct sctp_inpcb *)so->so_pcb;
 826         if (inp == NULL) {
 827                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 828                 return (EINVAL);
 829         }
 830         SCTP_INP_RLOCK(inp);
 831         /* For the 1 to many model this does nothing */
 832         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 833                 SCTP_INP_RUNLOCK(inp);
 834                 return (0);
 835         }
 836         SCTP_INP_RUNLOCK(inp);
 837         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 838                 /*
 839                  * First make sure the sb will be happy, we don't use these
 840                  * except maybe the count
 841                  */
 842                 SCTP_INP_WLOCK(inp);
 843                 SCTP_INP_READ_LOCK(inp);
 844                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 845                 SCTP_INP_READ_UNLOCK(inp);
 846                 SCTP_INP_WUNLOCK(inp);
 847                 so->so_rcv.sb_cc = 0;
 848                 so->so_rcv.sb_mbcnt = 0;
 849                 so->so_rcv.sb_mb = NULL;
 850         }
 851         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 852                 /*
 853                  * First make sure the sb will be happy, we don't use these
 854                  * except maybe the count
 855                  */
 856                 so->so_snd.sb_cc = 0;
 857                 so->so_snd.sb_mbcnt = 0;
 858                 so->so_snd.sb_mb = NULL;
 859         }
 860         return (0);
 861 }
 862
 863 int
 864 sctp_shutdown(struct socket *so)
 865 {
 866         struct sctp_inpcb *inp;
 867
 868         inp = (struct sctp_inpcb *)so->so_pcb;
 869         if (inp == NULL) {
 870                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 871                 return (EINVAL);
 872         }
 873         SCTP_INP_RLOCK(inp);
 874         /* For UDP model this is a invalid call */
 875         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 876             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 877                 /* Restore the flags that the soshutdown took away. */
 878                 SOCKBUF_LOCK(&so->so_rcv);
 879                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 880                 SOCKBUF_UNLOCK(&so->so_rcv);
 881                 /* This proc will wakeup for read and do nothing (I hope) */
 882                 SCTP_INP_RUNLOCK(inp);
 883                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 884                 return (EOPNOTSUPP);
 885         } else {
 886                 /*
 887                  * Ok, if we reach here its the TCP model and it is either a
 888                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 889                  * against it.
 890                  */
 891                 struct epoch_tracker et;
 892                 struct sctp_tcb *stcb;
 893                 struct sctp_association *asoc;
 894                 struct sctp_nets *netp;
 895
 896                 if ((so->so_state &
 897                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 898                         SCTP_INP_RUNLOCK(inp);
 899                         return (ENOTCONN);
 900                 }
 901                 socantsendmore(so);
 902
 903                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 904                 if (stcb == NULL) {
 905                         /*
 906                          * Ok, we hit the case that the shutdown call was
 907                          * made after an abort or something. Nothing to do
 908                          * now.
 909                          */
 910                         SCTP_INP_RUNLOCK(inp);
 911                         return (0);
 912                 }
 913                 SCTP_TCB_LOCK(stcb);
 914                 asoc = &stcb->asoc;
 915                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 916                         SCTP_TCB_UNLOCK(stcb);
 917                         SCTP_INP_RUNLOCK(inp);
 918                         return (0);
 919                 }
 920                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 921                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 922                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 923                         /*
 924                          * If we are not in or before ESTABLISHED, there is
 925                          * no protocol action required.
 926                          */
 927                         SCTP_TCB_UNLOCK(stcb);
 928                         SCTP_INP_RUNLOCK(inp);
 929                         return (0);
 930                 }
 931                 NET_EPOCH_ENTER(et);
 932                 if (stcb->asoc.alternate) {
 933                         netp = stcb->asoc.alternate;
 934                 } else {
 935                         netp = stcb->asoc.primary_destination;
 936                 }
 937                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 938                     TAILQ_EMPTY(&asoc->send_queue) &&
 939                     TAILQ_EMPTY(&asoc->sent_queue) &&
 940                     (asoc->stream_queue_cnt == 0)) {
 941                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 942                                 goto abort_anyway;
 943                         }
 944                         /* there is nothing queued to send, so I'm done... */
 945                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 946                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 947                         sctp_stop_timers_for_shutdown(stcb);
 948                         sctp_send_shutdown(stcb, netp);
 949                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 950                             stcb->sctp_ep, stcb, netp);
 951                 } else {
 952                         /*
 953                          * We still got (or just got) data to send, so set
 954                          * SHUTDOWN_PENDING.
 955                          */
 956                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 957                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 958                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 959                         }
 960                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 961                             TAILQ_EMPTY(&asoc->sent_queue) &&
 962                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 963                                 struct mbuf *op_err;
 964
 965                 abort_anyway:
 966                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 967                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 968                                 SCTP_INP_RUNLOCK(inp);
 969                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 970                                     op_err, false, SCTP_SO_LOCKED);
 971                                 NET_EPOCH_EXIT(et);
 972                                 return (0);
 973                         }
 974                 }
 975                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 976                 /*
 977                  * XXX: Why do this in the case where we have still data
 978                  * queued?
 979                  */
 980                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 981                 SCTP_TCB_UNLOCK(stcb);
 982                 SCTP_INP_RUNLOCK(inp);
 983                 NET_EPOCH_EXIT(et);
 984                 return (0);
 985         }
 986 }
 987
 988 /*
 989  * copies a "user" presentable address and removes embedded scope, etc.
 990  * returns 0 on success, 1 on error
 991  */
 992 static uint32_t
 993 sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
 994 {
 995 #ifdef INET6
 996         struct sockaddr_in6 lsa6;
 997
 998         src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
 999             &lsa6);
1000 #endif
1001         memcpy(dst, src, src->sa_len);
1002         return (0);
1003 }
1004
1005 static size_t
1006 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1007     struct sctp_tcb *stcb,
1008     size_t limit,
1009     struct sockaddr *addr,
1010     uint32_t vrf_id)
1011 {
1012         struct sctp_ifn *sctp_ifn;
1013         struct sctp_ifa *sctp_ifa;
1014         size_t actual;
1015         int loopback_scope;
1016 #if defined(INET)
1017         int ipv4_local_scope, ipv4_addr_legal;
1018 #endif
1019 #if defined(INET6)
1020         int local_scope, site_scope, ipv6_addr_legal;
1021 #endif
1022         struct sctp_vrf *vrf;
1023
1024         SCTP_IPI_ADDR_LOCK_ASSERT();
1025         actual = 0;
1026         if (limit == 0)
1027                 return (actual);
1028
1029         if (stcb) {
1030                 /* Turn on all the appropriate scope */
1031                 loopback_scope = stcb->asoc.scope.loopback_scope;
1032 #if defined(INET)
1033                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1034                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1035 #endif
1036 #if defined(INET6)
1037                 local_scope = stcb->asoc.scope.local_scope;
1038                 site_scope = stcb->asoc.scope.site_scope;
1039                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1040 #endif
1041         } else {
1042                 /* Use generic values for endpoints. */
1043                 loopback_scope = 1;
1044 #if defined(INET)
1045                 ipv4_local_scope = 1;
1046 #endif
1047 #if defined(INET6)
1048                 local_scope = 1;
1049                 site_scope = 1;
1050 #endif
1051                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1052 #if defined(INET6)
1053                         ipv6_addr_legal = 1;
1054 #endif
1055 #if defined(INET)
1056                         if (SCTP_IPV6_V6ONLY(inp)) {
1057                                 ipv4_addr_legal = 0;
1058                         } else {
1059                                 ipv4_addr_legal = 1;
1060                         }
1061 #endif
1062                 } else {
1063 #if defined(INET6)
1064                         ipv6_addr_legal = 0;
1065 #endif
1066 #if defined(INET)
1067                         ipv4_addr_legal = 1;
1068 #endif
1069                 }
1070         }
1071         vrf = sctp_find_vrf(vrf_id);
1072         if (vrf == NULL) {
1073                 return (0);
1074         }
1075         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1076                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1077                         if ((loopback_scope == 0) &&
1078                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1079                                 /* Skip loopback if loopback_scope not set */
1080                                 continue;
1081                         }
1082                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1083                                 if (stcb) {
1084                                         /*
1085                                          * For the BOUND-ALL case, the list
1086                                          * associated with a TCB is Always
1087                                          * considered a reverse list.. i.e.
1088                                          * it lists addresses that are NOT
1089                                          * part of the association. If this
1090                                          * is one of those we must skip it.
1091                                          */
1092                                         if (sctp_is_addr_restricted(stcb,
1093                                             sctp_ifa)) {
1094                                                 continue;
1095                                         }
1096                                 }
1097                                 switch (sctp_ifa->address.sa.sa_family) {
1098 #ifdef INET
1099                                 case AF_INET:
1100                                         if (ipv4_addr_legal) {
1101                                                 struct sockaddr_in *sin;
1102
1103                                                 sin = &sctp_ifa->address.sin;
1104                                                 if (sin->sin_addr.s_addr == 0) {
1105                                                         /*
1106                                                          * we skip
1107                                                          * unspecifed
1108                                                          * addresses
1109                                                          */
1110                                                         continue;
1111                                                 }
1112                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1113                                                     &sin->sin_addr) != 0) {
1114                                                         continue;
1115                                                 }
1116                                                 if ((ipv4_local_scope == 0) &&
1117                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1118                                                         continue;
1119                                                 }
1120 #ifdef INET6
1121                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1122                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1123                                                                 return (actual);
1124                                                         }
1125                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
1126                                                         ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1127                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1128                                                         actual += sizeof(struct sockaddr_in6);
1129                                                 } else {
1130 #endif
1131                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1132                                                                 return (actual);
1133                                                         }
1134                                                         memcpy(addr, sin, sizeof(struct sockaddr_in));
1135                                                         ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1136                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
1137                                                         actual += sizeof(struct sockaddr_in);
1138 #ifdef INET6
1139                                                 }
1140 #endif
1141                                         } else {
1142                                                 continue;
1143                                         }
1144                                         break;
1145 #endif
1146 #ifdef INET6
1147                                 case AF_INET6:
1148                                         if (ipv6_addr_legal) {
1149                                                 struct sockaddr_in6 *sin6;
1150
1151                                                 sin6 = &sctp_ifa->address.sin6;
1152                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1153                                                         /*
1154                                                          * we skip
1155                                                          * unspecifed
1156                                                          * addresses
1157                                                          */
1158                                                         continue;
1159                                                 }
1160                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1161                                                     &sin6->sin6_addr) != 0) {
1162                                                         continue;
1163                                                 }
1164                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1165                                                         if (local_scope == 0)
1166                                                                 continue;
1167                                                         if (sin6->sin6_scope_id == 0) {
1168                                                                 if (sa6_recoverscope(sin6) != 0)
1169                                                                         /*
1170                                                                          *
1171                                                                          * bad
1172                                                                          * link
1173                                                                          *
1174                                                                          * local
1175                                                                          *
1176                                                                          * address
1177                                                                          */
1178                                                                         continue;
1179                                                         }
1180                                                 }
1181                                                 if ((site_scope == 0) &&
1182                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1183                                                         continue;
1184                                                 }
1185                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1186                                                         return (actual);
1187                                                 }
1188                                                 memcpy(addr, sin6, sizeof(struct sockaddr_in6));
1189                                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1190                                                 addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1191                                                 actual += sizeof(struct sockaddr_in6);
1192                                         } else {
1193                                                 continue;
1194                                         }
1195                                         break;
1196 #endif
1197                                 default:
1198                                         /* TSNH */
1199                                         break;
1200                                 }
1201                         }
1202                 }
1203         } else {
1204                 struct sctp_laddr *laddr;
1205                 size_t sa_len;
1206
1207                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1208                         if (stcb) {
1209                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1210                                         continue;
1211                                 }
1212                         }
1213                         sa_len = laddr->ifa->address.sa.sa_len;
1214                         if (actual + sa_len > limit) {
1215                                 return (actual);
1216                         }
1217                         if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
1218                                 continue;
1219                         switch (laddr->ifa->address.sa.sa_family) {
1220 #ifdef INET
1221                         case AF_INET:
1222                                 ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1223                                 break;
1224 #endif
1225 #ifdef INET6
1226                         case AF_INET6:
1227                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1228                                 break;
1229 #endif
1230                         default:
1231                                 /* TSNH */
1232                                 break;
1233                         }
1234                         addr = (struct sockaddr *)((caddr_t)addr + sa_len);
1235                         actual += sa_len;
1236                 }
1237         }
1238         return (actual);
1239 }
1240
1241 static size_t
1242 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1243     struct sctp_tcb *stcb,
1244     size_t limit,
1245     struct sockaddr *addr)
1246 {
1247         size_t size;
1248
1249         SCTP_IPI_ADDR_RLOCK();
1250         /* fill up addresses for the endpoint's default vrf */
1251         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
1252             inp->def_vrf_id);
1253         SCTP_IPI_ADDR_RUNLOCK();
1254         return (size);
1255 }
1256
1257 static size_t
1258 sctp_max_size_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1259 {
1260         struct sctp_vrf *vrf;
1261         size_t size;
1262
1263         /*
1264          * In both sub-set bound an bound_all cases we return the size of
1265          * the maximum number of addresses that you could get. In reality
1266          * the sub-set bound may have an exclusion list for a given TCB or
1267          * in the bound-all case a TCB may NOT include the loopback or other
1268          * addresses as well.
1269          */
1270         SCTP_IPI_ADDR_LOCK_ASSERT();
1271         vrf = sctp_find_vrf(vrf_id);
1272         if (vrf == NULL) {
1273                 return (0);
1274         }
1275         size = 0;
1276         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1277                 struct sctp_ifn *sctp_ifn;
1278                 struct sctp_ifa *sctp_ifa;
1279
1280                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1281                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1282                                 /* Count them if they are the right type */
1283                                 switch (sctp_ifa->address.sa.sa_family) {
1284 #ifdef INET
1285                                 case AF_INET:
1286 #ifdef INET6
1287                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1288                                                 size += sizeof(struct sockaddr_in6);
1289                                         else
1290                                                 size += sizeof(struct sockaddr_in);
1291 #else
1292                                         size += sizeof(struct sockaddr_in);
1293 #endif
1294                                         break;
1295 #endif
1296 #ifdef INET6
1297                                 case AF_INET6:
1298                                         size += sizeof(struct sockaddr_in6);
1299                                         break;
1300 #endif
1301                                 default:
1302                                         break;
1303                                 }
1304                         }
1305                 }
1306         } else {
1307                 struct sctp_laddr *laddr;
1308
1309                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1310                         switch (laddr->ifa->address.sa.sa_family) {
1311 #ifdef INET
1312                         case AF_INET:
1313 #ifdef INET6
1314                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1315                                         size += sizeof(struct sockaddr_in6);
1316                                 else
1317                                         size += sizeof(struct sockaddr_in);
1318 #else
1319                                 size += sizeof(struct sockaddr_in);
1320 #endif
1321                                 break;
1322 #endif
1323 #ifdef INET6
1324                         case AF_INET6:
1325                                 size += sizeof(struct sockaddr_in6);
1326                                 break;
1327 #endif
1328                         default:
1329                                 break;
1330                         }
1331                 }
1332         }
1333         return (size);
1334 }
1335
1336 static size_t
1337 sctp_max_size_addresses(struct sctp_inpcb *inp)
1338 {
1339         size_t size;
1340
1341         SCTP_IPI_ADDR_RLOCK();
1342         /* Maximum size of all addresses for the endpoint's default VRF */
1343         size = sctp_max_size_addresses_vrf(inp, inp->def_vrf_id);
1344         SCTP_IPI_ADDR_RUNLOCK();
1345         return (size);
1346 }
1347
1348 static int
1349 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1350     size_t optsize, void *p, int delay)
1351 {
1352         int error;
1353         int creat_lock_on = 0;
1354         struct sctp_tcb *stcb = NULL;
1355         struct sockaddr *sa;
1356         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1357         uint32_t vrf_id;
1358         sctp_assoc_t *a_id;
1359
1360         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1361
1362         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1363             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1364                 /* We are already connected AND the TCP model */
1365                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1366                 return (EADDRINUSE);
1367         }
1368
1369         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1370             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1371                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1372                 return (EINVAL);
1373         }
1374
1375         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1376                 SCTP_INP_RLOCK(inp);
1377                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1378                 SCTP_INP_RUNLOCK(inp);
1379         }
1380         if (stcb) {
1381                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1382                 return (EALREADY);
1383         }
1384         SCTP_INP_INCR_REF(inp);
1385         SCTP_ASOC_CREATE_LOCK(inp);
1386         creat_lock_on = 1;
1387         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1388             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1389                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1390                 error = EFAULT;
1391                 goto out_now;
1392         }
1393         totaddrp = (unsigned int *)optval;
1394         totaddr = *totaddrp;
1395         sa = (struct sockaddr *)(totaddrp + 1);
1396         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1397         if (error != 0) {
1398                 /* Already have or am bring up an association */
1399                 SCTP_ASOC_CREATE_UNLOCK(inp);
1400                 creat_lock_on = 0;
1401                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1402                 goto out_now;
1403         }
1404 #ifdef INET6
1405         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1406             (num_v6 > 0)) {
1407                 error = EINVAL;
1408                 goto out_now;
1409         }
1410         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1411             (num_v4 > 0)) {
1412                 if (SCTP_IPV6_V6ONLY(inp)) {
1413                         /*
1414                          * if IPV6_V6ONLY flag, ignore connections destined
1415                          * to a v4 addr or v4-mapped addr
1416                          */
1417                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1418                         error = EINVAL;
1419                         goto out_now;
1420                 }
1421         }
1422 #endif                          /* INET6 */
1423         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1424             SCTP_PCB_FLAGS_UNBOUND) {
1425                 /* Bind a ephemeral port */
1426                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1427                 if (error) {
1428                         goto out_now;
1429                 }
1430         }
1431
1432         /* FIX ME: do we want to pass in a vrf on the connect call? */
1433         vrf_id = inp->def_vrf_id;
1434
1435         /* We are GOOD to go */
1436         stcb = sctp_aloc_assoc_connected(inp, sa, &error, 0, 0, vrf_id,
1437             inp->sctp_ep.pre_open_stream_count,
1438             inp->sctp_ep.port,
1439             (struct thread *)p,
1440             SCTP_INITIALIZE_AUTH_PARAMS);
1441         if (stcb == NULL) {
1442                 /* Gak! no memory */
1443                 goto out_now;
1444         }
1445         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1446         /* move to second address */
1447         switch (sa->sa_family) {
1448 #ifdef INET
1449         case AF_INET:
1450                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1451                 break;
1452 #endif
1453 #ifdef INET6
1454         case AF_INET6:
1455                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1456                 break;
1457 #endif
1458         default:
1459                 break;
1460         }
1461
1462         error = 0;
1463         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1464         /* Fill in the return id */
1465         if (error) {
1466                 goto out_now;
1467         }
1468         a_id = (sctp_assoc_t *)optval;
1469         *a_id = sctp_get_associd(stcb);
1470
1471         if (delay) {
1472                 /* doing delayed connection */
1473                 stcb->asoc.delayed_connection = 1;
1474                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1475         } else {
1476                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1477                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1478         }
1479         SCTP_TCB_UNLOCK(stcb);
1480 out_now:
1481         if (creat_lock_on) {
1482                 SCTP_ASOC_CREATE_UNLOCK(inp);
1483         }
1484         SCTP_INP_DECR_REF(inp);
1485         return (error);
1486 }
1487
1488 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1489         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1490             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1491                 SCTP_INP_RLOCK(inp); \
1492                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1493                 if (stcb) { \
1494                         SCTP_TCB_LOCK(stcb); \
1495                 } \
1496                 SCTP_INP_RUNLOCK(inp); \
1497         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1498                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1499                 if (stcb == NULL) { \
1500                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1501                         error = ENOENT; \
1502                         break; \
1503                 } \
1504         } else { \
1505                 stcb = NULL; \
1506         } \
1507 }
1508
1509 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1510         if (size < sizeof(type)) { \
1511                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1512                 error = EINVAL; \
1513                 break; \
1514         } else { \
1515                 destp = (type *)srcp; \
1516         } \
1517 }
1518
1519 static int
1520 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1521     void *p)
1522 {
1523         struct sctp_inpcb *inp = NULL;
1524         int error, val = 0;
1525         struct sctp_tcb *stcb = NULL;
1526
1527         if (optval == NULL) {
1528                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1529                 return (EINVAL);
1530         }
1531
1532         inp = (struct sctp_inpcb *)so->so_pcb;
1533         if (inp == NULL) {
1534                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1535                 return EINVAL;
1536         }
1537         error = 0;
1538
1539         switch (optname) {
1540         case SCTP_NODELAY:
1541         case SCTP_AUTOCLOSE:
1542         case SCTP_EXPLICIT_EOR:
1543         case SCTP_AUTO_ASCONF:
1544         case SCTP_DISABLE_FRAGMENTS:
1545         case SCTP_I_WANT_MAPPED_V4_ADDR:
1546         case SCTP_USE_EXT_RCVINFO:
1547                 SCTP_INP_RLOCK(inp);
1548                 switch (optname) {
1549                 case SCTP_DISABLE_FRAGMENTS:
1550                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1551                         break;
1552                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1553                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1554                         break;
1555                 case SCTP_AUTO_ASCONF:
1556                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1557                                 /* only valid for bound all sockets */
1558                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1559                         } else {
1560                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1561                                 error = EINVAL;
1562                                 goto flags_out;
1563                         }
1564                         break;
1565                 case SCTP_EXPLICIT_EOR:
1566                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1567                         break;
1568                 case SCTP_NODELAY:
1569                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1570                         break;
1571                 case SCTP_USE_EXT_RCVINFO:
1572                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1573                         break;
1574                 case SCTP_AUTOCLOSE:
1575                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1576                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1577                         else
1578                                 val = 0;
1579                         break;
1580
1581                 default:
1582                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1583                         error = ENOPROTOOPT;
1584                 }               /* end switch (sopt->sopt_name) */
1585                 if (*optsize < sizeof(val)) {
1586                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1587                         error = EINVAL;
1588                 }
1589 flags_out:
1590                 SCTP_INP_RUNLOCK(inp);
1591                 if (error == 0) {
1592                         /* return the option value */
1593                         *(int *)optval = val;
1594                         *optsize = sizeof(val);
1595                 }
1596                 break;
1597         case SCTP_GET_PACKET_LOG:
1598                 {
1599 #ifdef  SCTP_PACKET_LOGGING
1600                         uint8_t *target;
1601                         int ret;
1602
1603                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1604                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1605                         *optsize = ret;
1606 #else
1607                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1608                         error = EOPNOTSUPP;
1609 #endif
1610                         break;
1611                 }
1612         case SCTP_REUSE_PORT:
1613                 {
1614                         uint32_t *value;
1615
1616                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1617                                 /* Can't do this for a 1-m socket */
1618                                 error = EINVAL;
1619                                 break;
1620                         }
1621                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1622                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1623                         *optsize = sizeof(uint32_t);
1624                         break;
1625                 }
1626         case SCTP_PARTIAL_DELIVERY_POINT:
1627                 {
1628                         uint32_t *value;
1629
1630                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1631                         *value = inp->partial_delivery_point;
1632                         *optsize = sizeof(uint32_t);
1633                         break;
1634                 }
1635         case SCTP_FRAGMENT_INTERLEAVE:
1636                 {
1637                         uint32_t *value;
1638
1639                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1640                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1641                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1642                                         *value = SCTP_FRAG_LEVEL_2;
1643                                 } else {
1644                                         *value = SCTP_FRAG_LEVEL_1;
1645                                 }
1646                         } else {
1647                                 *value = SCTP_FRAG_LEVEL_0;
1648                         }
1649                         *optsize = sizeof(uint32_t);
1650                         break;
1651                 }
1652         case SCTP_INTERLEAVING_SUPPORTED:
1653                 {
1654                         struct sctp_assoc_value *av;
1655
1656                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1657                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1658
1659                         if (stcb) {
1660                                 av->assoc_value = stcb->asoc.idata_supported;
1661                                 SCTP_TCB_UNLOCK(stcb);
1662                         } else {
1663                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1664                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1665                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1666                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1667                                         SCTP_INP_RLOCK(inp);
1668                                         if (inp->idata_supported) {
1669                                                 av->assoc_value = 1;
1670                                         } else {
1671                                                 av->assoc_value = 0;
1672                                         }
1673                                         SCTP_INP_RUNLOCK(inp);
1674                                 } else {
1675                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1676                                         error = EINVAL;
1677                                 }
1678                         }
1679                         if (error == 0) {
1680                                 *optsize = sizeof(struct sctp_assoc_value);
1681                         }
1682                         break;
1683                 }
1684         case SCTP_CMT_ON_OFF:
1685                 {
1686                         struct sctp_assoc_value *av;
1687
1688                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1689                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1690                         if (stcb) {
1691                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1692                                 SCTP_TCB_UNLOCK(stcb);
1693                         } else {
1694                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1695                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1696                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1697                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1698                                         SCTP_INP_RLOCK(inp);
1699                                         av->assoc_value = inp->sctp_cmt_on_off;
1700                                         SCTP_INP_RUNLOCK(inp);
1701                                 } else {
1702                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1703                                         error = EINVAL;
1704                                 }
1705                         }
1706                         if (error == 0) {
1707                                 *optsize = sizeof(struct sctp_assoc_value);
1708                         }
1709                         break;
1710                 }
1711         case SCTP_PLUGGABLE_CC:
1712                 {
1713                         struct sctp_assoc_value *av;
1714
1715                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1716                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1717                         if (stcb) {
1718                                 av->assoc_value = stcb->asoc.congestion_control_module;
1719                                 SCTP_TCB_UNLOCK(stcb);
1720                         } else {
1721                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1722                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1723                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1724                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1725                                         SCTP_INP_RLOCK(inp);
1726                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1727                                         SCTP_INP_RUNLOCK(inp);
1728                                 } else {
1729                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1730                                         error = EINVAL;
1731                                 }
1732                         }
1733                         if (error == 0) {
1734                                 *optsize = sizeof(struct sctp_assoc_value);
1735                         }
1736                         break;
1737                 }
1738         case SCTP_CC_OPTION:
1739                 {
1740                         struct sctp_cc_option *cc_opt;
1741
1742                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1743                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1744                         if (stcb == NULL) {
1745                                 error = EINVAL;
1746                         } else {
1747                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1748                                         error = ENOTSUP;
1749                                 } else {
1750                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1751                                         *optsize = sizeof(struct sctp_cc_option);
1752                                 }
1753                                 SCTP_TCB_UNLOCK(stcb);
1754                         }
1755                         break;
1756                 }
1757         case SCTP_PLUGGABLE_SS:
1758                 {
1759                         struct sctp_assoc_value *av;
1760
1761                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1762                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1763                         if (stcb) {
1764                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1765                                 SCTP_TCB_UNLOCK(stcb);
1766                         } else {
1767                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1768                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1769                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1770                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1771                                         SCTP_INP_RLOCK(inp);
1772                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1773                                         SCTP_INP_RUNLOCK(inp);
1774                                 } else {
1775                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1776                                         error = EINVAL;
1777                                 }
1778                         }
1779                         if (error == 0) {
1780                                 *optsize = sizeof(struct sctp_assoc_value);
1781                         }
1782                         break;
1783                 }
1784         case SCTP_SS_VALUE:
1785                 {
1786                         struct sctp_stream_value *av;
1787
1788                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1789                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1790                         if (stcb) {
1791                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1792                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1793                                     &av->stream_value) < 0)) {
1794                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1795                                         error = EINVAL;
1796                                 } else {
1797                                         *optsize = sizeof(struct sctp_stream_value);
1798                                 }
1799                                 SCTP_TCB_UNLOCK(stcb);
1800                         } else {
1801                                 /*
1802                                  * Can't get stream value without
1803                                  * association
1804                                  */
1805                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1806                                 error = EINVAL;
1807                         }
1808                         break;
1809                 }
1810         case SCTP_GET_ADDR_LEN:
1811                 {
1812                         struct sctp_assoc_value *av;
1813
1814                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1815                         error = EINVAL;
1816 #ifdef INET
1817                         if (av->assoc_value == AF_INET) {
1818                                 av->assoc_value = sizeof(struct sockaddr_in);
1819                                 error = 0;
1820                         }
1821 #endif
1822 #ifdef INET6
1823                         if (av->assoc_value == AF_INET6) {
1824                                 av->assoc_value = sizeof(struct sockaddr_in6);
1825                                 error = 0;
1826                         }
1827 #endif
1828                         if (error) {
1829                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1830                         } else {
1831                                 *optsize = sizeof(struct sctp_assoc_value);
1832                         }
1833                         break;
1834                 }
1835         case SCTP_GET_ASSOC_NUMBER:
1836                 {
1837                         uint32_t *value, cnt;
1838
1839                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1840                         SCTP_INP_RLOCK(inp);
1841                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1842                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1843                                 /* Can't do this for a 1-1 socket */
1844                                 error = EINVAL;
1845                                 SCTP_INP_RUNLOCK(inp);
1846                                 break;
1847                         }
1848                         cnt = 0;
1849                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1850                                 cnt++;
1851                         }
1852                         SCTP_INP_RUNLOCK(inp);
1853                         *value = cnt;
1854                         *optsize = sizeof(uint32_t);
1855                         break;
1856                 }
1857         case SCTP_GET_ASSOC_ID_LIST:
1858                 {
1859                         struct sctp_assoc_ids *ids;
1860                         uint32_t at;
1861                         size_t limit;
1862
1863                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1864                         SCTP_INP_RLOCK(inp);
1865                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1866                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1867                                 /* Can't do this for a 1-1 socket */
1868                                 error = EINVAL;
1869                                 SCTP_INP_RUNLOCK(inp);
1870                                 break;
1871                         }
1872                         at = 0;
1873                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1874                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1875                                 if (at < limit) {
1876                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1877                                         if (at == 0) {
1878                                                 error = EINVAL;
1879                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1880                                                 break;
1881                                         }
1882                                 } else {
1883                                         error = EINVAL;
1884                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1885                                         break;
1886                                 }
1887                         }
1888                         SCTP_INP_RUNLOCK(inp);
1889                         if (error == 0) {
1890                                 ids->gaids_number_of_ids = at;
1891                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1892                         }
1893                         break;
1894                 }
1895         case SCTP_CONTEXT:
1896                 {
1897                         struct sctp_assoc_value *av;
1898
1899                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1900                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1901
1902                         if (stcb) {
1903                                 av->assoc_value = stcb->asoc.context;
1904                                 SCTP_TCB_UNLOCK(stcb);
1905                         } else {
1906                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1907                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1908                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1909                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1910                                         SCTP_INP_RLOCK(inp);
1911                                         av->assoc_value = inp->sctp_context;
1912                                         SCTP_INP_RUNLOCK(inp);
1913                                 } else {
1914                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1915                                         error = EINVAL;
1916                                 }
1917                         }
1918                         if (error == 0) {
1919                                 *optsize = sizeof(struct sctp_assoc_value);
1920                         }
1921                         break;
1922                 }
1923         case SCTP_VRF_ID:
1924                 {
1925                         uint32_t *default_vrfid;
1926
1927                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1928                         *default_vrfid = inp->def_vrf_id;
1929                         *optsize = sizeof(uint32_t);
1930                         break;
1931                 }
1932         case SCTP_GET_ASOC_VRF:
1933                 {
1934                         struct sctp_assoc_value *id;
1935
1936                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1937                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1938                         if (stcb == NULL) {
1939                                 error = EINVAL;
1940                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1941                         } else {
1942                                 id->assoc_value = stcb->asoc.vrf_id;
1943                                 SCTP_TCB_UNLOCK(stcb);
1944                                 *optsize = sizeof(struct sctp_assoc_value);
1945                         }
1946                         break;
1947                 }
1948         case SCTP_GET_VRF_IDS:
1949                 {
1950                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1951                         error = EOPNOTSUPP;
1952                         break;
1953                 }
1954         case SCTP_GET_NONCE_VALUES:
1955                 {
1956                         struct sctp_get_nonce_values *gnv;
1957
1958                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1959                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1960
1961                         if (stcb) {
1962                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1963                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1964                                 SCTP_TCB_UNLOCK(stcb);
1965                                 *optsize = sizeof(struct sctp_get_nonce_values);
1966                         } else {
1967                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1968                                 error = ENOTCONN;
1969                         }
1970                         break;
1971                 }
1972         case SCTP_DELAYED_SACK:
1973                 {
1974                         struct sctp_sack_info *sack;
1975
1976                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1977                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1978                         if (stcb) {
1979                                 sack->sack_delay = stcb->asoc.delayed_ack;
1980                                 sack->sack_freq = stcb->asoc.sack_freq;
1981                                 SCTP_TCB_UNLOCK(stcb);
1982                         } else {
1983                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1984                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1985                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1986                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
1987                                         SCTP_INP_RLOCK(inp);
1988                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1989                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1990                                         SCTP_INP_RUNLOCK(inp);
1991                                 } else {
1992                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1993                                         error = EINVAL;
1994                                 }
1995                         }
1996                         if (error == 0) {
1997                                 *optsize = sizeof(struct sctp_sack_info);
1998                         }
1999                         break;
2000                 }
2001         case SCTP_GET_SNDBUF_USE:
2002                 {
2003                         struct sctp_sockstat *ss;
2004
2005                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2006                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2007
2008                         if (stcb) {
2009                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2010                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2011                                     stcb->asoc.size_on_all_streams);
2012                                 SCTP_TCB_UNLOCK(stcb);
2013                                 *optsize = sizeof(struct sctp_sockstat);
2014                         } else {
2015                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2016                                 error = ENOTCONN;
2017                         }
2018                         break;
2019                 }
2020         case SCTP_MAX_BURST:
2021                 {
2022                         struct sctp_assoc_value *av;
2023
2024                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2025                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2026
2027                         if (stcb) {
2028                                 av->assoc_value = stcb->asoc.max_burst;
2029                                 SCTP_TCB_UNLOCK(stcb);
2030                         } else {
2031                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2032                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2033                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2034                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2035                                         SCTP_INP_RLOCK(inp);
2036                                         av->assoc_value = inp->sctp_ep.max_burst;
2037                                         SCTP_INP_RUNLOCK(inp);
2038                                 } else {
2039                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2040                                         error = EINVAL;
2041                                 }
2042                         }
2043                         if (error == 0) {
2044                                 *optsize = sizeof(struct sctp_assoc_value);
2045                         }
2046                         break;
2047                 }
2048         case SCTP_MAXSEG:
2049                 {
2050                         struct sctp_assoc_value *av;
2051
2052                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2053                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2054
2055                         if (stcb) {
2056                                 av->assoc_value = stcb->asoc.sctp_frag_point;
2057                                 SCTP_TCB_UNLOCK(stcb);
2058                         } else {
2059                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2060                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2061                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2062                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2063                                         SCTP_INP_RLOCK(inp);
2064                                         av->assoc_value = inp->sctp_frag_point;
2065                                         SCTP_INP_RUNLOCK(inp);
2066                                 } else {
2067                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2068                                         error = EINVAL;
2069                                 }
2070                         }
2071                         if (error == 0) {
2072                                 *optsize = sizeof(struct sctp_assoc_value);
2073                         }
2074                         break;
2075                 }
2076         case SCTP_GET_STAT_LOG:
2077                 error = sctp_fill_stat_log(optval, optsize);
2078                 break;
2079         case SCTP_EVENTS:
2080                 {
2081                         struct sctp_event_subscribe *events;
2082
2083                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2084                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2085                         SCTP_INP_RLOCK(inp);
2086                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2087                                 events->sctp_data_io_event = 1;
2088
2089                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2090                                 events->sctp_association_event = 1;
2091
2092                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2093                                 events->sctp_address_event = 1;
2094
2095                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2096                                 events->sctp_send_failure_event = 1;
2097
2098                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2099                                 events->sctp_peer_error_event = 1;
2100
2101                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2102                                 events->sctp_shutdown_event = 1;
2103
2104                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2105                                 events->sctp_partial_delivery_event = 1;
2106
2107                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2108                                 events->sctp_adaptation_layer_event = 1;
2109
2110                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2111                                 events->sctp_authentication_event = 1;
2112
2113                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2114                                 events->sctp_sender_dry_event = 1;
2115
2116                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2117                                 events->sctp_stream_reset_event = 1;
2118                         SCTP_INP_RUNLOCK(inp);
2119                         *optsize = sizeof(struct sctp_event_subscribe);
2120                         break;
2121                 }
2122         case SCTP_ADAPTATION_LAYER:
2123                 {
2124                         uint32_t *value;
2125
2126                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2127
2128                         SCTP_INP_RLOCK(inp);
2129                         *value = inp->sctp_ep.adaptation_layer_indicator;
2130                         SCTP_INP_RUNLOCK(inp);
2131                         *optsize = sizeof(uint32_t);
2132                         break;
2133                 }
2134         case SCTP_SET_INITIAL_DBG_SEQ:
2135                 {
2136                         uint32_t *value;
2137
2138                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2139                         SCTP_INP_RLOCK(inp);
2140                         *value = inp->sctp_ep.initial_sequence_debug;
2141                         SCTP_INP_RUNLOCK(inp);
2142                         *optsize = sizeof(uint32_t);
2143                         break;
2144                 }
2145         case SCTP_GET_LOCAL_ADDR_SIZE:
2146                 {
2147                         uint32_t *value;
2148
2149                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2150                         SCTP_INP_RLOCK(inp);
2151                         *value = (uint32_t)sctp_max_size_addresses(inp);
2152                         SCTP_INP_RUNLOCK(inp);
2153                         *optsize = sizeof(uint32_t);
2154                         break;
2155                 }
2156         case SCTP_GET_REMOTE_ADDR_SIZE:
2157                 {
2158                         uint32_t *value;
2159                         struct sctp_nets *net;
2160                         size_t size;
2161
2162                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2163                         /* FIXME MT: change to sctp_assoc_value? */
2164                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2165
2166                         if (stcb != NULL) {
2167                                 size = 0;
2168                                 /* Count the sizes */
2169                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2170                                         switch (net->ro._l_addr.sa.sa_family) {
2171 #ifdef INET
2172                                         case AF_INET:
2173 #ifdef INET6
2174                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2175                                                         size += sizeof(struct sockaddr_in6);
2176                                                 } else {
2177                                                         size += sizeof(struct sockaddr_in);
2178                                                 }
2179 #else
2180                                                 size += sizeof(struct sockaddr_in);
2181 #endif
2182                                                 break;
2183 #endif
2184 #ifdef INET6
2185                                         case AF_INET6:
2186                                                 size += sizeof(struct sockaddr_in6);
2187                                                 break;
2188 #endif
2189                                         default:
2190                                                 break;
2191                                         }
2192                                 }
2193                                 SCTP_TCB_UNLOCK(stcb);
2194                                 *value = (uint32_t)size;
2195                                 *optsize = sizeof(uint32_t);
2196                         } else {
2197                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2198                                     ((sctp_assoc_t)*value <= SCTP_ALL_ASSOC)) {
2199                                         error = EINVAL;
2200                                 } else {
2201                                         error = ENOENT;
2202                                 }
2203                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2204                         }
2205                         break;
2206                 }
2207         case SCTP_GET_PEER_ADDRESSES:
2208                 /*
2209                  * Get the address information, an array is passed in to
2210                  * fill up we pack it.
2211                  */
2212                 {
2213                         size_t cpsz, left;
2214                         struct sockaddr *addr;
2215                         struct sctp_nets *net;
2216                         struct sctp_getaddresses *saddr;
2217
2218                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2219                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2220
2221                         if (stcb != NULL) {
2222                                 left = *optsize - offsetof(struct sctp_getaddresses, addr);
2223                                 *optsize = offsetof(struct sctp_getaddresses, addr);
2224                                 addr = &saddr->addr[0].sa;
2225
2226                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2227                                         switch (net->ro._l_addr.sa.sa_family) {
2228 #ifdef INET
2229                                         case AF_INET:
2230 #ifdef INET6
2231                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2232                                                         cpsz = sizeof(struct sockaddr_in6);
2233                                                 } else {
2234                                                         cpsz = sizeof(struct sockaddr_in);
2235                                                 }
2236 #else
2237                                                 cpsz = sizeof(struct sockaddr_in);
2238 #endif
2239                                                 break;
2240 #endif
2241 #ifdef INET6
2242                                         case AF_INET6:
2243                                                 cpsz = sizeof(struct sockaddr_in6);
2244                                                 break;
2245 #endif
2246                                         default:
2247                                                 cpsz = 0;
2248                                                 break;
2249                                         }
2250                                         if (cpsz == 0) {
2251                                                 break;
2252                                         }
2253                                         if (left < cpsz) {
2254                                                 /* not enough room. */
2255                                                 break;
2256                                         }
2257 #if defined(INET) && defined(INET6)
2258                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2259                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2260                                                 /* Must map the address */
2261                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2262                                                     (struct sockaddr_in6 *)addr);
2263                                         } else {
2264                                                 memcpy(addr, &net->ro._l_addr, cpsz);
2265                                         }
2266 #else
2267                                         memcpy(addr, &net->ro._l_addr, cpsz);
2268 #endif
2269                                         ((struct sockaddr_in *)addr)->sin_port = stcb->rport;
2270
2271                                         addr = (struct sockaddr *)((caddr_t)addr + cpsz);
2272                                         left -= cpsz;
2273                                         *optsize += cpsz;
2274                                 }
2275                                 SCTP_TCB_UNLOCK(stcb);
2276                         } else {
2277                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2278                                     (saddr->sget_assoc_id <= SCTP_ALL_ASSOC)) {
2279                                         error = EINVAL;
2280                                 } else {
2281                                         error = ENOENT;
2282                                 }
2283                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2284                         }
2285                         break;
2286                 }
2287         case SCTP_GET_LOCAL_ADDRESSES:
2288                 {
2289                         size_t limit, actual;
2290                         struct sctp_getaddresses *saddr;
2291
2292                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2293                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2294
2295                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2296                             ((saddr->sget_assoc_id == SCTP_CURRENT_ASSOC) ||
2297                             (saddr->sget_assoc_id == SCTP_ALL_ASSOC))) {
2298                                 error = EINVAL;
2299                         } else {
2300                                 limit = *optsize - offsetof(struct sctp_getaddresses, addr);
2301                                 actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
2302                                 *optsize = offsetof(struct sctp_getaddresses, addr) + actual;
2303                         }
2304                         if (stcb != NULL) {
2305                                 SCTP_TCB_UNLOCK(stcb);
2306                         }
2307                         break;
2308                 }
2309         case SCTP_PEER_ADDR_PARAMS:
2310                 {
2311                         struct sctp_paddrparams *paddrp;
2312                         struct sctp_nets *net;
2313                         struct sockaddr *addr;
2314 #if defined(INET) && defined(INET6)
2315                         struct sockaddr_in sin_store;
2316 #endif
2317
2318                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2319                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2320
2321 #if defined(INET) && defined(INET6)
2322                         if (paddrp->spp_address.ss_family == AF_INET6) {
2323                                 struct sockaddr_in6 *sin6;
2324
2325                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2326                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2327                                         in6_sin6_2_sin(&sin_store, sin6);
2328                                         addr = (struct sockaddr *)&sin_store;
2329                                 } else {
2330                                         addr = (struct sockaddr *)&paddrp->spp_address;
2331                                 }
2332                         } else {
2333                                 addr = (struct sockaddr *)&paddrp->spp_address;
2334                         }
2335 #else
2336                         addr = (struct sockaddr *)&paddrp->spp_address;
2337 #endif
2338                         if (stcb != NULL) {
2339                                 net = sctp_findnet(stcb, addr);
2340                         } else {
2341                                 /*
2342                                  * We increment here since
2343                                  * sctp_findassociation_ep_addr() wil do a
2344                                  * decrement if it finds the stcb as long as
2345                                  * the locked tcb (last argument) is NOT a
2346                                  * TCB.. aka NULL.
2347                                  */
2348                                 net = NULL;
2349                                 SCTP_INP_INCR_REF(inp);
2350                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2351                                 if (stcb == NULL) {
2352                                         SCTP_INP_DECR_REF(inp);
2353                                 }
2354                         }
2355                         if ((stcb != NULL) && (net == NULL)) {
2356 #ifdef INET
2357                                 if (addr->sa_family == AF_INET) {
2358                                         struct sockaddr_in *sin;
2359
2360                                         sin = (struct sockaddr_in *)addr;
2361                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2362                                                 error = EINVAL;
2363                                                 SCTP_TCB_UNLOCK(stcb);
2364                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2365                                                 break;
2366                                         }
2367                                 } else
2368 #endif
2369 #ifdef INET6
2370                                 if (addr->sa_family == AF_INET6) {
2371                                         struct sockaddr_in6 *sin6;
2372
2373                                         sin6 = (struct sockaddr_in6 *)addr;
2374                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2375                                                 error = EINVAL;
2376                                                 SCTP_TCB_UNLOCK(stcb);
2377                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2378                                                 break;
2379                                         }
2380                                 } else
2381 #endif
2382                                 {
2383                                         error = EAFNOSUPPORT;
2384                                         SCTP_TCB_UNLOCK(stcb);
2385                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2386                                         break;
2387                                 }
2388                         }
2389
2390                         if (stcb != NULL) {
2391                                 /* Applies to the specific association */
2392                                 paddrp->spp_flags = 0;
2393                                 if (net != NULL) {
2394                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2395                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2396                                         paddrp->spp_pathmtu = net->mtu;
2397                                         switch (net->ro._l_addr.sa.sa_family) {
2398 #ifdef INET
2399                                         case AF_INET:
2400                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2401                                                 break;
2402 #endif
2403 #ifdef INET6
2404                                         case AF_INET6:
2405                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2406                                                 break;
2407 #endif
2408                                         default:
2409                                                 break;
2410                                         }
2411                                         /* get flags for HB */
2412                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2413                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2414                                         } else {
2415                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2416                                         }
2417                                         /* get flags for PMTU */
2418                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2419                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2420                                         } else {
2421                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2422                                         }
2423                                         if (net->dscp & 0x01) {
2424                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2425                                                 paddrp->spp_flags |= SPP_DSCP;
2426                                         }
2427 #ifdef INET6
2428                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2429                                             (net->flowlabel & 0x80000000)) {
2430                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2431                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2432                                         }
2433 #endif
2434                                 } else {
2435                                         /*
2436                                          * No destination so return default
2437                                          * value
2438                                          */
2439                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2440                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2441                                         if (stcb->asoc.default_dscp & 0x01) {
2442                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2443                                                 paddrp->spp_flags |= SPP_DSCP;
2444                                         }
2445 #ifdef INET6
2446                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2447                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2448                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2449                                         }
2450 #endif
2451                                         /* default settings should be these */
2452                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2453                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2454                                         } else {
2455                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2456                                         }
2457                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2458                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2459                                         } else {
2460                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2461                                         }
2462                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2463                                 }
2464                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2465                                 SCTP_TCB_UNLOCK(stcb);
2466                         } else {
2467                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2468                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2469                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2470                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2471                                         /* Use endpoint defaults */
2472                                         SCTP_INP_RLOCK(inp);
2473                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2474                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2475                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2476                                         /* get inp's default */
2477                                         if (inp->sctp_ep.default_dscp & 0x01) {
2478                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2479                                                 paddrp->spp_flags |= SPP_DSCP;
2480                                         }
2481 #ifdef INET6
2482                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2483                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2484                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2485                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2486                                         }
2487 #endif
2488                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2489
2490                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2491                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2492                                         } else {
2493                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2494                                         }
2495                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2496                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2497                                         } else {
2498                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2499                                         }
2500                                         SCTP_INP_RUNLOCK(inp);
2501                                 } else {
2502                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2503                                         error = EINVAL;
2504                                 }
2505                         }
2506                         if (error == 0) {
2507                                 *optsize = sizeof(struct sctp_paddrparams);
2508                         }
2509                         break;
2510                 }
2511         case SCTP_GET_PEER_ADDR_INFO:
2512                 {
2513                         struct sctp_paddrinfo *paddri;
2514                         struct sctp_nets *net;
2515                         struct sockaddr *addr;
2516 #if defined(INET) && defined(INET6)
2517                         struct sockaddr_in sin_store;
2518 #endif
2519
2520                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2521                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2522
2523 #if defined(INET) && defined(INET6)
2524                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2525                                 struct sockaddr_in6 *sin6;
2526
2527                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2528                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2529                                         in6_sin6_2_sin(&sin_store, sin6);
2530                                         addr = (struct sockaddr *)&sin_store;
2531                                 } else {
2532                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2533                                 }
2534                         } else {
2535                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2536                         }
2537 #else
2538                         addr = (struct sockaddr *)&paddri->spinfo_address;
2539 #endif
2540                         if (stcb != NULL) {
2541                                 net = sctp_findnet(stcb, addr);
2542                         } else {
2543                                 /*
2544                                  * We increment here since
2545                                  * sctp_findassociation_ep_addr() wil do a
2546                                  * decrement if it finds the stcb as long as
2547                                  * the locked tcb (last argument) is NOT a
2548                                  * TCB.. aka NULL.
2549                                  */
2550                                 net = NULL;
2551                                 SCTP_INP_INCR_REF(inp);
2552                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2553                                 if (stcb == NULL) {
2554                                         SCTP_INP_DECR_REF(inp);
2555                                 }
2556                         }
2557
2558                         if ((stcb != NULL) && (net != NULL)) {
2559                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2560                                         /* It's unconfirmed */
2561                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2562                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2563                                         /* It's active */
2564                                         paddri->spinfo_state = SCTP_ACTIVE;
2565                                 } else {
2566                                         /* It's inactive */
2567                                         paddri->spinfo_state = SCTP_INACTIVE;
2568                                 }
2569                                 paddri->spinfo_cwnd = net->cwnd;
2570                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2571                                 paddri->spinfo_rto = net->RTO;
2572                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2573                                 paddri->spinfo_mtu = net->mtu;
2574                                 switch (addr->sa_family) {
2575 #if defined(INET)
2576                                 case AF_INET:
2577                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2578                                         break;
2579 #endif
2580 #if defined(INET6)
2581                                 case AF_INET6:
2582                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2583                                         break;
2584 #endif
2585                                 default:
2586                                         break;
2587                                 }
2588                                 SCTP_TCB_UNLOCK(stcb);
2589                                 *optsize = sizeof(struct sctp_paddrinfo);
2590                         } else {
2591                                 if (stcb != NULL) {
2592                                         SCTP_TCB_UNLOCK(stcb);
2593                                 }
2594                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2595                                 error = ENOENT;
2596                         }
2597                         break;
2598                 }
2599         case SCTP_PCB_STATUS:
2600                 {
2601                         struct sctp_pcbinfo *spcb;
2602
2603                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2604                         sctp_fill_pcbinfo(spcb);
2605                         *optsize = sizeof(struct sctp_pcbinfo);
2606                         break;
2607                 }
2608         case SCTP_STATUS:
2609                 {
2610                         struct sctp_nets *net;
2611                         struct sctp_status *sstat;
2612
2613                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2614                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2615
2616                         if (stcb == NULL) {
2617                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2618                                 error = EINVAL;
2619                                 break;
2620                         }
2621                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2622                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2623                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2624                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2625                         /*
2626                          * We can't include chunks that have been passed to
2627                          * the socket layer. Only things in queue.
2628                          */
2629                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2630                             stcb->asoc.cnt_on_all_streams);
2631                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2632                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2633                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb);
2634                         net = stcb->asoc.primary_destination;
2635                         if (net != NULL) {
2636                                 memcpy(&sstat->sstat_primary.spinfo_address,
2637                                     &net->ro._l_addr,
2638                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2639                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2640                                 /*
2641                                  * Again the user can get info from
2642                                  * sctp_constants.h for what the state of
2643                                  * the network is.
2644                                  */
2645                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2646                                         /* It's unconfirmed */
2647                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2648                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2649                                         /* It's active */
2650                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2651                                 } else {
2652                                         /* It's inactive */
2653                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2654                                 }
2655                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2656                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2657                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2658                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2659                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2660 #if defined(INET)
2661                                 case AF_INET:
2662                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2663                                         break;
2664 #endif
2665 #if defined(INET6)
2666                                 case AF_INET6:
2667                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2668                                         break;
2669 #endif
2670                                 default:
2671                                         break;
2672                                 }
2673                         } else {
2674                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2675                         }
2676                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2677                         SCTP_TCB_UNLOCK(stcb);
2678                         *optsize = sizeof(struct sctp_status);
2679                         break;
2680                 }
2681         case SCTP_RTOINFO:
2682                 {
2683                         struct sctp_rtoinfo *srto;
2684
2685                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2686                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2687
2688                         if (stcb) {
2689                                 srto->srto_initial = stcb->asoc.initial_rto;
2690                                 srto->srto_max = stcb->asoc.maxrto;
2691                                 srto->srto_min = stcb->asoc.minrto;
2692                                 SCTP_TCB_UNLOCK(stcb);
2693                         } else {
2694                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2695                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2696                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2697                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2698                                         SCTP_INP_RLOCK(inp);
2699                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2700                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2701                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2702                                         SCTP_INP_RUNLOCK(inp);
2703                                 } else {
2704                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2705                                         error = EINVAL;
2706                                 }
2707                         }
2708                         if (error == 0) {
2709                                 *optsize = sizeof(struct sctp_rtoinfo);
2710                         }
2711                         break;
2712                 }
2713         case SCTP_TIMEOUTS:
2714                 {
2715                         struct sctp_timeouts *stimo;
2716
2717                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2718                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2719
2720                         if (stcb) {
2721                                 stimo->stimo_init = stcb->asoc.timoinit;
2722                                 stimo->stimo_data = stcb->asoc.timodata;
2723                                 stimo->stimo_sack = stcb->asoc.timosack;
2724                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2725                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2726                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2727                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2728                                 SCTP_TCB_UNLOCK(stcb);
2729                                 *optsize = sizeof(struct sctp_timeouts);
2730                         } else {
2731                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2732                                 error = EINVAL;
2733                         }
2734                         break;
2735                 }
2736         case SCTP_ASSOCINFO:
2737                 {
2738                         struct sctp_assocparams *sasoc;
2739
2740                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2741                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2742
2743                         if (stcb) {
2744                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2745                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2746                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2747                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2748                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2749                                 SCTP_TCB_UNLOCK(stcb);
2750                         } else {
2751                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2752                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2753                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2754                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2755                                         SCTP_INP_RLOCK(inp);
2756                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2757                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2758                                         sasoc->sasoc_number_peer_destinations = 0;
2759                                         sasoc->sasoc_peer_rwnd = 0;
2760                                         sasoc->sasoc_local_rwnd = (uint32_t)sbspace(&inp->sctp_socket->so_rcv);
2761                                         SCTP_INP_RUNLOCK(inp);
2762                                 } else {
2763                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2764                                         error = EINVAL;
2765                                 }
2766                         }
2767                         if (error == 0) {
2768                                 *optsize = sizeof(struct sctp_assocparams);
2769                         }
2770                         break;
2771                 }
2772         case SCTP_DEFAULT_SEND_PARAM:
2773                 {
2774                         struct sctp_sndrcvinfo *s_info;
2775
2776                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2777                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2778
2779                         if (stcb) {
2780                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2781                                 SCTP_TCB_UNLOCK(stcb);
2782                         } else {
2783                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2784                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2785                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2786                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2787                                         SCTP_INP_RLOCK(inp);
2788                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2789                                         SCTP_INP_RUNLOCK(inp);
2790                                 } else {
2791                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2792                                         error = EINVAL;
2793                                 }
2794                         }
2795                         if (error == 0) {
2796                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2797                         }
2798                         break;
2799                 }
2800         case SCTP_INITMSG:
2801                 {
2802                         struct sctp_initmsg *sinit;
2803
2804                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2805                         SCTP_INP_RLOCK(inp);
2806                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2807                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2808                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2809                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2810                         SCTP_INP_RUNLOCK(inp);
2811                         *optsize = sizeof(struct sctp_initmsg);
2812                         break;
2813                 }
2814         case SCTP_PRIMARY_ADDR:
2815                 /* we allow a "get" operation on this */
2816                 {
2817                         struct sctp_setprim *ssp;
2818
2819                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2820                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2821
2822                         if (stcb) {
2823                                 union sctp_sockstore *addr;
2824
2825                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2826                                 switch (addr->sa.sa_family) {
2827 #ifdef INET
2828                                 case AF_INET:
2829 #ifdef INET6
2830                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2831                                                 in6_sin_2_v4mapsin6(&addr->sin,
2832                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2833                                         } else {
2834                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2835                                         }
2836 #else
2837                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2838 #endif
2839                                         break;
2840 #endif
2841 #ifdef INET6
2842                                 case AF_INET6:
2843                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2844                                         break;
2845 #endif
2846                                 default:
2847                                         break;
2848                                 }
2849                                 SCTP_TCB_UNLOCK(stcb);
2850                                 *optsize = sizeof(struct sctp_setprim);
2851                         } else {
2852                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2853                                 error = EINVAL;
2854                         }
2855                         break;
2856                 }
2857         case SCTP_HMAC_IDENT:
2858                 {
2859                         struct sctp_hmacalgo *shmac;
2860                         sctp_hmaclist_t *hmaclist;
2861                         size_t size;
2862                         int i;
2863
2864                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2865
2866                         SCTP_INP_RLOCK(inp);
2867                         hmaclist = inp->sctp_ep.local_hmacs;
2868                         if (hmaclist == NULL) {
2869                                 /* no HMACs to return */
2870                                 *optsize = sizeof(*shmac);
2871                                 SCTP_INP_RUNLOCK(inp);
2872                                 break;
2873                         }
2874                         /* is there room for all of the hmac ids? */
2875                         size = sizeof(*shmac) + (hmaclist->num_algo *
2876                             sizeof(shmac->shmac_idents[0]));
2877                         if (*optsize < size) {
2878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2879                                 error = EINVAL;
2880                                 SCTP_INP_RUNLOCK(inp);
2881                                 break;
2882                         }
2883                         /* copy in the list */
2884                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2885                         for (i = 0; i < hmaclist->num_algo; i++) {
2886                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2887                         }
2888                         SCTP_INP_RUNLOCK(inp);
2889                         *optsize = size;
2890                         break;
2891                 }
2892         case SCTP_AUTH_ACTIVE_KEY:
2893                 {
2894                         struct sctp_authkeyid *scact;
2895
2896                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2897                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2898
2899                         if (stcb) {
2900                                 /* get the active key on the assoc */
2901                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2902                                 SCTP_TCB_UNLOCK(stcb);
2903                         } else {
2904                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2905                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2906                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2907                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2908                                         /* get the endpoint active key */
2909                                         SCTP_INP_RLOCK(inp);
2910                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2911                                         SCTP_INP_RUNLOCK(inp);
2912                                 } else {
2913                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2914                                         error = EINVAL;
2915                                 }
2916                         }
2917                         if (error == 0) {
2918                                 *optsize = sizeof(struct sctp_authkeyid);
2919                         }
2920                         break;
2921                 }
2922         case SCTP_LOCAL_AUTH_CHUNKS:
2923                 {
2924                         struct sctp_authchunks *sac;
2925                         sctp_auth_chklist_t *chklist = NULL;
2926                         size_t size = 0;
2927
2928                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2929                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2930
2931                         if (stcb) {
2932                                 /* get off the assoc */
2933                                 chklist = stcb->asoc.local_auth_chunks;
2934                                 /* is there enough space? */
2935                                 size = sctp_auth_get_chklist_size(chklist);
2936                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2937                                         error = EINVAL;
2938                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2939                                 } else {
2940                                         /* copy in the chunks */
2941                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2942                                         sac->gauth_number_of_chunks = (uint32_t)size;
2943                                         *optsize = sizeof(struct sctp_authchunks) + size;
2944                                 }
2945                                 SCTP_TCB_UNLOCK(stcb);
2946                         } else {
2947                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2948                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2949                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2950                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2951                                         /* get off the endpoint */
2952                                         SCTP_INP_RLOCK(inp);
2953                                         chklist = inp->sctp_ep.local_auth_chunks;
2954                                         /* is there enough space? */
2955                                         size = sctp_auth_get_chklist_size(chklist);
2956                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2957                                                 error = EINVAL;
2958                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2959                                         } else {
2960                                                 /* copy in the chunks */
2961                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2962                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2963                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2964                                         }
2965                                         SCTP_INP_RUNLOCK(inp);
2966                                 } else {
2967                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2968                                         error = EINVAL;
2969                                 }
2970                         }
2971                         break;
2972                 }
2973         case SCTP_PEER_AUTH_CHUNKS:
2974                 {
2975                         struct sctp_authchunks *sac;
2976                         sctp_auth_chklist_t *chklist = NULL;
2977                         size_t size = 0;
2978
2979                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2980                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2981
2982                         if (stcb) {
2983                                 /* get off the assoc */
2984                                 chklist = stcb->asoc.peer_auth_chunks;
2985                                 /* is there enough space? */
2986                                 size = sctp_auth_get_chklist_size(chklist);
2987                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2988                                         error = EINVAL;
2989                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2990                                 } else {
2991                                         /* copy in the chunks */
2992                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2993                                         sac->gauth_number_of_chunks = (uint32_t)size;
2994                                         *optsize = sizeof(struct sctp_authchunks) + size;
2995                                 }
2996                                 SCTP_TCB_UNLOCK(stcb);
2997                         } else {
2998                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2999                                 error = ENOENT;
3000                         }
3001                         break;
3002                 }
3003         case SCTP_EVENT:
3004                 {
3005                         struct sctp_event *event;
3006                         uint32_t event_type;
3007
3008                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3009                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3010
3011                         switch (event->se_type) {
3012                         case SCTP_ASSOC_CHANGE:
3013                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3014                                 break;
3015                         case SCTP_PEER_ADDR_CHANGE:
3016                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3017                                 break;
3018                         case SCTP_REMOTE_ERROR:
3019                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3020                                 break;
3021                         case SCTP_SEND_FAILED:
3022                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3023                                 break;
3024                         case SCTP_SHUTDOWN_EVENT:
3025                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3026                                 break;
3027                         case SCTP_ADAPTATION_INDICATION:
3028                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3029                                 break;
3030                         case SCTP_PARTIAL_DELIVERY_EVENT:
3031                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3032                                 break;
3033                         case SCTP_AUTHENTICATION_EVENT:
3034                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3035                                 break;
3036                         case SCTP_STREAM_RESET_EVENT:
3037                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3038                                 break;
3039                         case SCTP_SENDER_DRY_EVENT:
3040                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3041                                 break;
3042                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3043                                 event_type = 0;
3044                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3045                                 error = ENOTSUP;
3046                                 break;
3047                         case SCTP_ASSOC_RESET_EVENT:
3048                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3049                                 break;
3050                         case SCTP_STREAM_CHANGE_EVENT:
3051                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3052                                 break;
3053                         case SCTP_SEND_FAILED_EVENT:
3054                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3055                                 break;
3056                         default:
3057                                 event_type = 0;
3058                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3059                                 error = EINVAL;
3060                                 break;
3061                         }
3062                         if (event_type > 0) {
3063                                 if (stcb) {
3064                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3065                                 } else {
3066                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3067                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3068                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3069                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3070                                                 SCTP_INP_RLOCK(inp);
3071                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3072                                                 SCTP_INP_RUNLOCK(inp);
3073                                         } else {
3074                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3075                                                 error = EINVAL;
3076                                         }
3077                                 }
3078                         }
3079                         if (stcb != NULL) {
3080                                 SCTP_TCB_UNLOCK(stcb);
3081                         }
3082                         if (error == 0) {
3083                                 *optsize = sizeof(struct sctp_event);
3084                         }
3085                         break;
3086                 }
3087         case SCTP_RECVRCVINFO:
3088                 if (*optsize < sizeof(int)) {
3089                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3090                         error = EINVAL;
3091                 } else {
3092                         SCTP_INP_RLOCK(inp);
3093                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3094                         SCTP_INP_RUNLOCK(inp);
3095                         *optsize = sizeof(int);
3096                 }
3097                 break;
3098         case SCTP_RECVNXTINFO:
3099                 if (*optsize < sizeof(int)) {
3100                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3101                         error = EINVAL;
3102                 } else {
3103                         SCTP_INP_RLOCK(inp);
3104                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3105                         SCTP_INP_RUNLOCK(inp);
3106                         *optsize = sizeof(int);
3107                 }
3108                 break;
3109         case SCTP_DEFAULT_SNDINFO:
3110                 {
3111                         struct sctp_sndinfo *info;
3112
3113                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3114                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3115
3116                         if (stcb) {
3117                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3118                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3119                                 info->snd_flags &= 0xfff0;
3120                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3121                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3122                                 SCTP_TCB_UNLOCK(stcb);
3123                         } else {
3124                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3125                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3126                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3127                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3128                                         SCTP_INP_RLOCK(inp);
3129                                         info->snd_sid = inp->def_send.sinfo_stream;
3130                                         info->snd_flags = inp->def_send.sinfo_flags;
3131                                         info->snd_flags &= 0xfff0;
3132                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3133                                         info->snd_context = inp->def_send.sinfo_context;
3134                                         SCTP_INP_RUNLOCK(inp);
3135                                 } else {
3136                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3137                                         error = EINVAL;
3138                                 }
3139                         }
3140                         if (error == 0) {
3141                                 *optsize = sizeof(struct sctp_sndinfo);
3142                         }
3143                         break;
3144                 }
3145         case SCTP_DEFAULT_PRINFO:
3146                 {
3147                         struct sctp_default_prinfo *info;
3148
3149                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3150                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3151
3152                         if (stcb) {
3153                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3154                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3155                                 SCTP_TCB_UNLOCK(stcb);
3156                         } else {
3157                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3158                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3159                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3160                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3161                                         SCTP_INP_RLOCK(inp);
3162                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3163                                         info->pr_value = inp->def_send.sinfo_timetolive;
3164                                         SCTP_INP_RUNLOCK(inp);
3165                                 } else {
3166                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3167                                         error = EINVAL;
3168                                 }
3169                         }
3170                         if (error == 0) {
3171                                 *optsize = sizeof(struct sctp_default_prinfo);
3172                         }
3173                         break;
3174                 }
3175         case SCTP_PEER_ADDR_THLDS:
3176                 {
3177                         struct sctp_paddrthlds *thlds;
3178                         struct sctp_nets *net;
3179                         struct sockaddr *addr;
3180 #if defined(INET) && defined(INET6)
3181                         struct sockaddr_in sin_store;
3182 #endif
3183
3184                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3185                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3186
3187 #if defined(INET) && defined(INET6)
3188                         if (thlds->spt_address.ss_family == AF_INET6) {
3189                                 struct sockaddr_in6 *sin6;
3190
3191                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3192                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3193                                         in6_sin6_2_sin(&sin_store, sin6);
3194                                         addr = (struct sockaddr *)&sin_store;
3195                                 } else {
3196                                         addr = (struct sockaddr *)&thlds->spt_address;
3197                                 }
3198                         } else {
3199                                 addr = (struct sockaddr *)&thlds->spt_address;
3200                         }
3201 #else
3202                         addr = (struct sockaddr *)&thlds->spt_address;
3203 #endif
3204                         if (stcb != NULL) {
3205                                 net = sctp_findnet(stcb, addr);
3206                         } else {
3207                                 /*
3208                                  * We increment here since
3209                                  * sctp_findassociation_ep_addr() wil do a
3210                                  * decrement if it finds the stcb as long as
3211                                  * the locked tcb (last argument) is NOT a
3212                                  * TCB.. aka NULL.
3213                                  */
3214                                 net = NULL;
3215                                 SCTP_INP_INCR_REF(inp);
3216                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3217                                 if (stcb == NULL) {
3218                                         SCTP_INP_DECR_REF(inp);
3219                                 }
3220                         }
3221                         if ((stcb != NULL) && (net == NULL)) {
3222 #ifdef INET
3223                                 if (addr->sa_family == AF_INET) {
3224                                         struct sockaddr_in *sin;
3225
3226                                         sin = (struct sockaddr_in *)addr;
3227                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3228                                                 error = EINVAL;
3229                                                 SCTP_TCB_UNLOCK(stcb);
3230                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3231                                                 break;
3232                                         }
3233                                 } else
3234 #endif
3235 #ifdef INET6
3236                                 if (addr->sa_family == AF_INET6) {
3237                                         struct sockaddr_in6 *sin6;
3238
3239                                         sin6 = (struct sockaddr_in6 *)addr;
3240                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3241                                                 error = EINVAL;
3242                                                 SCTP_TCB_UNLOCK(stcb);
3243                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3244                                                 break;
3245                                         }
3246                                 } else
3247 #endif
3248                                 {
3249                                         error = EAFNOSUPPORT;
3250                                         SCTP_TCB_UNLOCK(stcb);
3251                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3252                                         break;
3253                                 }
3254                         }
3255
3256                         if (stcb != NULL) {
3257                                 if (net != NULL) {
3258                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3259                                         thlds->spt_pathpfthld = net->pf_threshold;
3260                                         thlds->spt_pathcpthld = 0xffff;
3261                                 } else {
3262                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3263                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3264                                         thlds->spt_pathcpthld = 0xffff;
3265                                 }
3266                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3267                                 SCTP_TCB_UNLOCK(stcb);
3268                         } else {
3269                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3270                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3271                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3272                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3273                                         /* Use endpoint defaults */
3274                                         SCTP_INP_RLOCK(inp);
3275                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3276                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3277                                         thlds->spt_pathcpthld = 0xffff;
3278                                         SCTP_INP_RUNLOCK(inp);
3279                                 } else {
3280                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3281                                         error = EINVAL;
3282                                 }
3283                         }
3284                         if (error == 0) {
3285                                 *optsize = sizeof(struct sctp_paddrthlds);
3286                         }
3287                         break;
3288                 }
3289         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3290                 {
3291                         struct sctp_udpencaps *encaps;
3292                         struct sctp_nets *net;
3293                         struct sockaddr *addr;
3294 #if defined(INET) && defined(INET6)
3295                         struct sockaddr_in sin_store;
3296 #endif
3297
3298                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3299                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3300
3301 #if defined(INET) && defined(INET6)
3302                         if (encaps->sue_address.ss_family == AF_INET6) {
3303                                 struct sockaddr_in6 *sin6;
3304
3305                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3306                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3307                                         in6_sin6_2_sin(&sin_store, sin6);
3308                                         addr = (struct sockaddr *)&sin_store;
3309                                 } else {
3310                                         addr = (struct sockaddr *)&encaps->sue_address;
3311                                 }
3312                         } else {
3313                                 addr = (struct sockaddr *)&encaps->sue_address;
3314                         }
3315 #else
3316                         addr = (struct sockaddr *)&encaps->sue_address;
3317 #endif
3318                         if (stcb) {
3319                                 net = sctp_findnet(stcb, addr);
3320                         } else {
3321                                 /*
3322                                  * We increment here since
3323                                  * sctp_findassociation_ep_addr() wil do a
3324                                  * decrement if it finds the stcb as long as
3325                                  * the locked tcb (last argument) is NOT a
3326                                  * TCB.. aka NULL.
3327                                  */
3328                                 net = NULL;
3329                                 SCTP_INP_INCR_REF(inp);
3330                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3331                                 if (stcb == NULL) {
3332                                         SCTP_INP_DECR_REF(inp);
3333                                 }
3334                         }
3335                         if ((stcb != NULL) && (net == NULL)) {
3336 #ifdef INET
3337                                 if (addr->sa_family == AF_INET) {
3338                                         struct sockaddr_in *sin;
3339
3340                                         sin = (struct sockaddr_in *)addr;
3341                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3342                                                 error = EINVAL;
3343                                                 SCTP_TCB_UNLOCK(stcb);
3344                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3345                                                 break;
3346                                         }
3347                                 } else
3348 #endif
3349 #ifdef INET6
3350                                 if (addr->sa_family == AF_INET6) {
3351                                         struct sockaddr_in6 *sin6;
3352
3353                                         sin6 = (struct sockaddr_in6 *)addr;
3354                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3355                                                 error = EINVAL;
3356                                                 SCTP_TCB_UNLOCK(stcb);
3357                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3358                                                 break;
3359                                         }
3360                                 } else
3361 #endif
3362                                 {
3363                                         error = EAFNOSUPPORT;
3364                                         SCTP_TCB_UNLOCK(stcb);
3365                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3366                                         break;
3367                                 }
3368                         }
3369
3370                         if (stcb != NULL) {
3371                                 if (net) {
3372                                         encaps->sue_port = net->port;
3373                                 } else {
3374                                         encaps->sue_port = stcb->asoc.port;
3375                                 }
3376                                 SCTP_TCB_UNLOCK(stcb);
3377                         } else {
3378                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3379                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3380                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3381                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3382                                         SCTP_INP_RLOCK(inp);
3383                                         encaps->sue_port = inp->sctp_ep.port;
3384                                         SCTP_INP_RUNLOCK(inp);
3385                                 } else {
3386                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3387                                         error = EINVAL;
3388                                 }
3389                         }
3390                         if (error == 0) {
3391                                 *optsize = sizeof(struct sctp_udpencaps);
3392                         }
3393                         break;
3394                 }
3395         case SCTP_ECN_SUPPORTED:
3396                 {
3397                         struct sctp_assoc_value *av;
3398
3399                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3400                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3401
3402                         if (stcb) {
3403                                 av->assoc_value = stcb->asoc.ecn_supported;
3404                                 SCTP_TCB_UNLOCK(stcb);
3405                         } else {
3406                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3407                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3408                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3409                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3410                                         SCTP_INP_RLOCK(inp);
3411                                         av->assoc_value = inp->ecn_supported;
3412                                         SCTP_INP_RUNLOCK(inp);
3413                                 } else {
3414                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3415                                         error = EINVAL;
3416                                 }
3417                         }
3418                         if (error == 0) {
3419                                 *optsize = sizeof(struct sctp_assoc_value);
3420                         }
3421                         break;
3422                 }
3423         case SCTP_PR_SUPPORTED:
3424                 {
3425                         struct sctp_assoc_value *av;
3426
3427                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3428                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3429
3430                         if (stcb) {
3431                                 av->assoc_value = stcb->asoc.prsctp_supported;
3432                                 SCTP_TCB_UNLOCK(stcb);
3433                         } else {
3434                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3435                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3436                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3437                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3438                                         SCTP_INP_RLOCK(inp);
3439                                         av->assoc_value = inp->prsctp_supported;
3440                                         SCTP_INP_RUNLOCK(inp);
3441                                 } else {
3442                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3443                                         error = EINVAL;
3444                                 }
3445                         }
3446                         if (error == 0) {
3447                                 *optsize = sizeof(struct sctp_assoc_value);
3448                         }
3449                         break;
3450                 }
3451         case SCTP_AUTH_SUPPORTED:
3452                 {
3453                         struct sctp_assoc_value *av;
3454
3455                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3456                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3457
3458                         if (stcb) {
3459                                 av->assoc_value = stcb->asoc.auth_supported;
3460                                 SCTP_TCB_UNLOCK(stcb);
3461                         } else {
3462                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3463                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3464                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3465                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3466                                         SCTP_INP_RLOCK(inp);
3467                                         av->assoc_value = inp->auth_supported;
3468                                         SCTP_INP_RUNLOCK(inp);
3469                                 } else {
3470                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3471                                         error = EINVAL;
3472                                 }
3473                         }
3474                         if (error == 0) {
3475                                 *optsize = sizeof(struct sctp_assoc_value);
3476                         }
3477                         break;
3478                 }
3479         case SCTP_ASCONF_SUPPORTED:
3480                 {
3481                         struct sctp_assoc_value *av;
3482
3483                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3484                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3485
3486                         if (stcb) {
3487                                 av->assoc_value = stcb->asoc.asconf_supported;
3488                                 SCTP_TCB_UNLOCK(stcb);
3489                         } else {
3490                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3491                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3492                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3493                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3494                                         SCTP_INP_RLOCK(inp);
3495                                         av->assoc_value = inp->asconf_supported;
3496                                         SCTP_INP_RUNLOCK(inp);
3497                                 } else {
3498                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3499                                         error = EINVAL;
3500                                 }
3501                         }
3502                         if (error == 0) {
3503                                 *optsize = sizeof(struct sctp_assoc_value);
3504                         }
3505                         break;
3506                 }
3507         case SCTP_RECONFIG_SUPPORTED:
3508                 {
3509                         struct sctp_assoc_value *av;
3510
3511                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3512                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3513
3514                         if (stcb) {
3515                                 av->assoc_value = stcb->asoc.reconfig_supported;
3516                                 SCTP_TCB_UNLOCK(stcb);
3517                         } else {
3518                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3519                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3520                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3521                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3522                                         SCTP_INP_RLOCK(inp);
3523                                         av->assoc_value = inp->reconfig_supported;
3524                                         SCTP_INP_RUNLOCK(inp);
3525                                 } else {
3526                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3527                                         error = EINVAL;
3528                                 }
3529                         }
3530                         if (error == 0) {
3531                                 *optsize = sizeof(struct sctp_assoc_value);
3532                         }
3533                         break;
3534                 }
3535         case SCTP_NRSACK_SUPPORTED:
3536                 {
3537                         struct sctp_assoc_value *av;
3538
3539                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3540                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3541
3542                         if (stcb) {
3543                                 av->assoc_value = stcb->asoc.nrsack_supported;
3544                                 SCTP_TCB_UNLOCK(stcb);
3545                         } else {
3546                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3547                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3548                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3549                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3550                                         SCTP_INP_RLOCK(inp);
3551                                         av->assoc_value = inp->nrsack_supported;
3552                                         SCTP_INP_RUNLOCK(inp);
3553                                 } else {
3554                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3555                                         error = EINVAL;
3556                                 }
3557                         }
3558                         if (error == 0) {
3559                                 *optsize = sizeof(struct sctp_assoc_value);
3560                         }
3561                         break;
3562                 }
3563         case SCTP_PKTDROP_SUPPORTED:
3564                 {
3565                         struct sctp_assoc_value *av;
3566
3567                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3568                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3569
3570                         if (stcb) {
3571                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3572                                 SCTP_TCB_UNLOCK(stcb);
3573                         } else {
3574                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3575                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3576                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3577                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3578                                         SCTP_INP_RLOCK(inp);
3579                                         av->assoc_value = inp->pktdrop_supported;
3580                                         SCTP_INP_RUNLOCK(inp);
3581                                 } else {
3582                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3583                                         error = EINVAL;
3584                                 }
3585                         }
3586                         if (error == 0) {
3587                                 *optsize = sizeof(struct sctp_assoc_value);
3588                         }
3589                         break;
3590                 }
3591         case SCTP_ENABLE_STREAM_RESET:
3592                 {
3593                         struct sctp_assoc_value *av;
3594
3595                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3596                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3597
3598                         if (stcb) {
3599                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3600                                 SCTP_TCB_UNLOCK(stcb);
3601                         } else {
3602                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3603                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3604                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3605                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3606                                         SCTP_INP_RLOCK(inp);
3607                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3608                                         SCTP_INP_RUNLOCK(inp);
3609                                 } else {
3610                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3611                                         error = EINVAL;
3612                                 }
3613                         }
3614                         if (error == 0) {
3615                                 *optsize = sizeof(struct sctp_assoc_value);
3616                         }
3617                         break;
3618                 }
3619         case SCTP_PR_STREAM_STATUS:
3620                 {
3621                         struct sctp_prstatus *sprstat;
3622                         uint16_t sid;
3623                         uint16_t policy;
3624
3625                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3626                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3627
3628                         sid = sprstat->sprstat_sid;
3629                         policy = sprstat->sprstat_policy;
3630 #if defined(SCTP_DETAILED_STR_STATS)
3631                         if ((stcb != NULL) &&
3632                             (sid < stcb->asoc.streamoutcnt) &&
3633                             (policy != SCTP_PR_SCTP_NONE) &&
3634                             ((policy <= SCTP_PR_SCTP_MAX) ||
3635                             (policy == SCTP_PR_SCTP_ALL))) {
3636                                 if (policy == SCTP_PR_SCTP_ALL) {
3637                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3638                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3639                                 } else {
3640                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3641                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3642                                 }
3643 #else
3644                         if ((stcb != NULL) &&
3645                             (sid < stcb->asoc.streamoutcnt) &&
3646                             (policy == SCTP_PR_SCTP_ALL)) {
3647                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3648                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3649 #endif
3650                         } else {
3651                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3652                                 error = EINVAL;
3653                         }
3654                         if (stcb != NULL) {
3655                                 SCTP_TCB_UNLOCK(stcb);
3656                         }
3657                         if (error == 0) {
3658                                 *optsize = sizeof(struct sctp_prstatus);
3659                         }
3660                         break;
3661                 }
3662         case SCTP_PR_ASSOC_STATUS:
3663                 {
3664                         struct sctp_prstatus *sprstat;
3665                         uint16_t policy;
3666
3667                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3668                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3669
3670                         policy = sprstat->sprstat_policy;
3671                         if ((stcb != NULL) &&
3672                             (policy != SCTP_PR_SCTP_NONE) &&
3673                             ((policy <= SCTP_PR_SCTP_MAX) ||
3674                             (policy == SCTP_PR_SCTP_ALL))) {
3675                                 if (policy == SCTP_PR_SCTP_ALL) {
3676                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3677                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3678                                 } else {
3679                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3680                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3681                                 }
3682                         } else {
3683                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3684                                 error = EINVAL;
3685                         }
3686                         if (stcb != NULL) {
3687                                 SCTP_TCB_UNLOCK(stcb);
3688                         }
3689                         if (error == 0) {
3690                                 *optsize = sizeof(struct sctp_prstatus);
3691                         }
3692                         break;
3693                 }
3694         case SCTP_MAX_CWND:
3695                 {
3696                         struct sctp_assoc_value *av;
3697
3698                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3699                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3700
3701                         if (stcb) {
3702                                 av->assoc_value = stcb->asoc.max_cwnd;
3703                                 SCTP_TCB_UNLOCK(stcb);
3704                         } else {
3705                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3706                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3707                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3708                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3709                                         SCTP_INP_RLOCK(inp);
3710                                         av->assoc_value = inp->max_cwnd;
3711                                         SCTP_INP_RUNLOCK(inp);
3712                                 } else {
3713                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3714                                         error = EINVAL;
3715                                 }
3716                         }
3717                         if (error == 0) {
3718                                 *optsize = sizeof(struct sctp_assoc_value);
3719                         }
3720                         break;
3721                 }
3722         default:
3723                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3724                 error = ENOPROTOOPT;
3725                 break;
3726         }                       /* end switch (sopt->sopt_name) */
3727         if (error) {
3728                 *optsize = 0;
3729         }
3730         return (error);
3731 }
3732
3733 static int
3734 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3735     void *p)
3736 {
3737         int error, set_opt;
3738         uint32_t *mopt;
3739         struct sctp_tcb *stcb = NULL;
3740         struct sctp_inpcb *inp = NULL;
3741         uint32_t vrf_id;
3742
3743         if (optval == NULL) {
3744                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3745                 return (EINVAL);
3746         }
3747         inp = (struct sctp_inpcb *)so->so_pcb;
3748         if (inp == NULL) {
3749                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3750                 return (EINVAL);
3751         }
3752         vrf_id = inp->def_vrf_id;
3753
3754         error = 0;
3755         switch (optname) {
3756         case SCTP_NODELAY:
3757         case SCTP_AUTOCLOSE:
3758         case SCTP_AUTO_ASCONF:
3759         case SCTP_EXPLICIT_EOR:
3760         case SCTP_DISABLE_FRAGMENTS:
3761         case SCTP_USE_EXT_RCVINFO:
3762         case SCTP_I_WANT_MAPPED_V4_ADDR:
3763                 /* copy in the option value */
3764                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3765                 set_opt = 0;
3766                 if (error)
3767                         break;
3768                 switch (optname) {
3769                 case SCTP_DISABLE_FRAGMENTS:
3770                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3771                         break;
3772                 case SCTP_AUTO_ASCONF:
3773                         /*
3774                          * NOTE: we don't really support this flag
3775                          */
3776                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3777                                 /* only valid for bound all sockets */
3778                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3779                                     (*mopt != 0)) {
3780                                         /* forbidden by admin */
3781                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3782                                         return (EPERM);
3783                                 }
3784                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3785                         } else {
3786                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3787                                 return (EINVAL);
3788                         }
3789                         break;
3790                 case SCTP_EXPLICIT_EOR:
3791                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3792                         break;
3793                 case SCTP_USE_EXT_RCVINFO:
3794                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3795                         break;
3796                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3797                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3798                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3799                         } else {
3800                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3801                                 return (EINVAL);
3802                         }
3803                         break;
3804                 case SCTP_NODELAY:
3805                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3806                         break;
3807                 case SCTP_AUTOCLOSE:
3808                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3809                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3810                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3811                                 return (EINVAL);
3812                         }
3813                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3814                         /*
3815                          * The value is in ticks. Note this does not effect
3816                          * old associations, only new ones.
3817                          */
3818                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3819                         break;
3820                 }
3821                 SCTP_INP_WLOCK(inp);
3822                 if (*mopt != 0) {
3823                         sctp_feature_on(inp, set_opt);
3824                 } else {
3825                         sctp_feature_off(inp, set_opt);
3826                 }
3827                 SCTP_INP_WUNLOCK(inp);
3828                 break;
3829         case SCTP_REUSE_PORT:
3830                 {
3831                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3832                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3833                                 /* Can't set it after we are bound */
3834                                 error = EINVAL;
3835                                 break;
3836                         }
3837                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3838                                 /* Can't do this for a 1-m socket */
3839                                 error = EINVAL;
3840                                 break;
3841                         }
3842                         if (optval)
3843                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3844                         else
3845                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3846                         break;
3847                 }
3848         case SCTP_PARTIAL_DELIVERY_POINT:
3849                 {
3850                         uint32_t *value;
3851
3852                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3853                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3854                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3855                                 error = EINVAL;
3856                                 break;
3857                         }
3858                         inp->partial_delivery_point = *value;
3859                         break;
3860                 }
3861         case SCTP_FRAGMENT_INTERLEAVE:
3862                 /* not yet until we re-write sctp_recvmsg() */
3863                 {
3864                         uint32_t *level;
3865
3866                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3867                         if (*level == SCTP_FRAG_LEVEL_2) {
3868                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3869                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3870                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3871                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3872                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3873                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3874                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3875                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3876
3877                         } else {
3878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3879                                 error = EINVAL;
3880                         }
3881                         break;
3882                 }
3883         case SCTP_INTERLEAVING_SUPPORTED:
3884                 {
3885                         struct sctp_assoc_value *av;
3886
3887                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3888                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3889
3890                         if (stcb) {
3891                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3892                                 error = EINVAL;
3893                                 SCTP_TCB_UNLOCK(stcb);
3894                         } else {
3895                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3896                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3897                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3898                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3899                                         SCTP_INP_WLOCK(inp);
3900                                         if (av->assoc_value == 0) {
3901                                                 inp->idata_supported = 0;
3902                                         } else {
3903                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3904                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3905                                                         inp->idata_supported = 1;
3906                                                 } else {
3907                                                         /*
3908                                                          * Must have Frag
3909                                                          * interleave and
3910                                                          * stream interleave
3911                                                          * on
3912                                                          */
3913                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3914                                                         error = EINVAL;
3915                                                 }
3916                                         }
3917                                         SCTP_INP_WUNLOCK(inp);
3918                                 } else {
3919                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3920                                         error = EINVAL;
3921                                 }
3922                         }
3923                         break;
3924                 }
3925         case SCTP_CMT_ON_OFF:
3926                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3927                         struct sctp_assoc_value *av;
3928
3929                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3930                         if (av->assoc_value > SCTP_CMT_MAX) {
3931                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3932                                 error = EINVAL;
3933                                 break;
3934                         }
3935                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3936                         if (stcb) {
3937                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3938                                 SCTP_TCB_UNLOCK(stcb);
3939                         } else {
3940                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3941                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3942                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3943                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3944                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3945                                         SCTP_INP_WLOCK(inp);
3946                                         inp->sctp_cmt_on_off = av->assoc_value;
3947                                         SCTP_INP_WUNLOCK(inp);
3948                                 }
3949                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3950                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3951                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3952                                         SCTP_INP_RLOCK(inp);
3953                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3954                                                 SCTP_TCB_LOCK(stcb);
3955                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3956                                                 SCTP_TCB_UNLOCK(stcb);
3957                                         }
3958                                         SCTP_INP_RUNLOCK(inp);
3959                                 }
3960                         }
3961                 } else {
3962                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3963                         error = ENOPROTOOPT;
3964                 }
3965                 break;
3966         case SCTP_PLUGGABLE_CC:
3967                 {
3968                         struct sctp_assoc_value *av;
3969                         struct sctp_nets *net;
3970
3971                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3972                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3973                             (av->assoc_value != SCTP_CC_HSTCP) &&
3974                             (av->assoc_value != SCTP_CC_HTCP) &&
3975                             (av->assoc_value != SCTP_CC_RTCC)) {
3976                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3977                                 error = EINVAL;
3978                                 break;
3979                         }
3980                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3981                         if (stcb) {
3982                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3983                                 stcb->asoc.congestion_control_module = av->assoc_value;
3984                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3985                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3986                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3987                                         }
3988                                 }
3989                                 SCTP_TCB_UNLOCK(stcb);
3990                         } else {
3991                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3992                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3993                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3994                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3995                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3996                                         SCTP_INP_WLOCK(inp);
3997                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3998                                         SCTP_INP_WUNLOCK(inp);
3999                                 }
4000                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4001                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4002                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4003                                         SCTP_INP_RLOCK(inp);
4004                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4005                                                 SCTP_TCB_LOCK(stcb);
4006                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
4007                                                 stcb->asoc.congestion_control_module = av->assoc_value;
4008                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
4009                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4010                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4011                                                         }
4012                                                 }
4013                                                 SCTP_TCB_UNLOCK(stcb);
4014                                         }
4015                                         SCTP_INP_RUNLOCK(inp);
4016                                 }
4017                         }
4018                         break;
4019                 }
4020         case SCTP_CC_OPTION:
4021                 {
4022                         struct sctp_cc_option *cc_opt;
4023
4024                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4025                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4026                         if (stcb == NULL) {
4027                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4028                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4029                                         SCTP_INP_RLOCK(inp);
4030                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4031                                                 SCTP_TCB_LOCK(stcb);
4032                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4033                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4034                                                 }
4035                                                 SCTP_TCB_UNLOCK(stcb);
4036                                         }
4037                                         SCTP_INP_RUNLOCK(inp);
4038                                 } else {
4039                                         error = EINVAL;
4040                                 }
4041                         } else {
4042                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4043                                         error = ENOTSUP;
4044                                 } else {
4045                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4046                                             cc_opt);
4047                                 }
4048                                 SCTP_TCB_UNLOCK(stcb);
4049                         }
4050                         break;
4051                 }
4052         case SCTP_PLUGGABLE_SS:
4053                 {
4054                         struct sctp_assoc_value *av;
4055
4056                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4057                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4058                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4059                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4060                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4061                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4062                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4063                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4064                                 error = EINVAL;
4065                                 break;
4066                         }
4067                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4068                         if (stcb) {
4069                                 SCTP_TCB_SEND_LOCK(stcb);
4070                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4071                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4072                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4073                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4074                                 SCTP_TCB_SEND_UNLOCK(stcb);
4075                                 SCTP_TCB_UNLOCK(stcb);
4076                         } else {
4077                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4078                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4079                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4080                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4081                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4082                                         SCTP_INP_WLOCK(inp);
4083                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4084                                         SCTP_INP_WUNLOCK(inp);
4085                                 }
4086                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4087                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4088                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4089                                         SCTP_INP_RLOCK(inp);
4090                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4091                                                 SCTP_TCB_LOCK(stcb);
4092                                                 SCTP_TCB_SEND_LOCK(stcb);
4093                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4094                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4095                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4096                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4097                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4098                                                 SCTP_TCB_UNLOCK(stcb);
4099                                         }
4100                                         SCTP_INP_RUNLOCK(inp);
4101                                 }
4102                         }
4103                         break;
4104                 }
4105         case SCTP_SS_VALUE:
4106                 {
4107                         struct sctp_stream_value *av;
4108
4109                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4110                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4111                         if (stcb) {
4112                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4113                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4114                                     av->stream_value) < 0)) {
4115                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4116                                         error = EINVAL;
4117                                 }
4118                                 SCTP_TCB_UNLOCK(stcb);
4119                         } else {
4120                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4121                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4122                                         SCTP_INP_RLOCK(inp);
4123                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4124                                                 SCTP_TCB_LOCK(stcb);
4125                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4126                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4127                                                             &stcb->asoc,
4128                                                             &stcb->asoc.strmout[av->stream_id],
4129                                                             av->stream_value);
4130                                                 }
4131                                                 SCTP_TCB_UNLOCK(stcb);
4132                                         }
4133                                         SCTP_INP_RUNLOCK(inp);
4134                                 } else {
4135                                         /*
4136                                          * Can't set stream value without
4137                                          * association
4138                                          */
4139                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4140                                         error = EINVAL;
4141                                 }
4142                         }
4143                         break;
4144                 }
4145         case SCTP_CLR_STAT_LOG:
4146                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4147                 error = EOPNOTSUPP;
4148                 break;
4149         case SCTP_CONTEXT:
4150                 {
4151                         struct sctp_assoc_value *av;
4152
4153                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4154                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4155
4156                         if (stcb) {
4157                                 stcb->asoc.context = av->assoc_value;
4158                                 SCTP_TCB_UNLOCK(stcb);
4159                         } else {
4160                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4161                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4162                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4163                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4164                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4165                                         SCTP_INP_WLOCK(inp);
4166                                         inp->sctp_context = av->assoc_value;
4167                                         SCTP_INP_WUNLOCK(inp);
4168                                 }
4169                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4170                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4171                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4172                                         SCTP_INP_RLOCK(inp);
4173                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4174                                                 SCTP_TCB_LOCK(stcb);
4175                                                 stcb->asoc.context = av->assoc_value;
4176                                                 SCTP_TCB_UNLOCK(stcb);
4177                                         }
4178                                         SCTP_INP_RUNLOCK(inp);
4179                                 }
4180                         }
4181                         break;
4182                 }
4183         case SCTP_VRF_ID:
4184                 {
4185                         uint32_t *default_vrfid;
4186
4187                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4188                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4189                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4190                                 error = EINVAL;
4191                                 break;
4192                         }
4193                         inp->def_vrf_id = *default_vrfid;
4194                         break;
4195                 }
4196         case SCTP_DEL_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_ADD_VRF_ID:
4203                 {
4204                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4205                         error = EOPNOTSUPP;
4206                         break;
4207                 }
4208         case SCTP_DELAYED_SACK:
4209                 {
4210                         struct sctp_sack_info *sack;
4211
4212                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4213                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4214                         if (sack->sack_delay) {
4215                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4216                                         error = EINVAL;
4217                                         if (stcb != NULL) {
4218                                                 SCTP_TCB_UNLOCK(stcb);
4219                                         }
4220                                         break;
4221                                 }
4222                         }
4223                         if (stcb) {
4224                                 if (sack->sack_delay) {
4225                                         stcb->asoc.delayed_ack = sack->sack_delay;
4226                                 }
4227                                 if (sack->sack_freq) {
4228                                         stcb->asoc.sack_freq = sack->sack_freq;
4229                                 }
4230                                 SCTP_TCB_UNLOCK(stcb);
4231                         } else {
4232                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4233                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4234                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4235                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4236                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4237                                         SCTP_INP_WLOCK(inp);
4238                                         if (sack->sack_delay) {
4239                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4240                                         }
4241                                         if (sack->sack_freq) {
4242                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4243                                         }
4244                                         SCTP_INP_WUNLOCK(inp);
4245                                 }
4246                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4247                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4248                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4249                                         SCTP_INP_RLOCK(inp);
4250                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4251                                                 SCTP_TCB_LOCK(stcb);
4252                                                 if (sack->sack_delay) {
4253                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4254                                                 }
4255                                                 if (sack->sack_freq) {
4256                                                         stcb->asoc.sack_freq = sack->sack_freq;
4257                                                 }
4258                                                 SCTP_TCB_UNLOCK(stcb);
4259                                         }
4260                                         SCTP_INP_RUNLOCK(inp);
4261                                 }
4262                         }
4263                         break;
4264                 }
4265         case SCTP_AUTH_CHUNK:
4266                 {
4267                         struct sctp_authchunk *sauth;
4268
4269                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4270
4271                         SCTP_INP_WLOCK(inp);
4272                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4273                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4274                                 error = EINVAL;
4275                         } else {
4276                                 inp->auth_supported = 1;
4277                         }
4278                         SCTP_INP_WUNLOCK(inp);
4279                         break;
4280                 }
4281         case SCTP_AUTH_KEY:
4282                 {
4283                         struct sctp_authkey *sca;
4284                         struct sctp_keyhead *shared_keys;
4285                         sctp_sharedkey_t *shared_key;
4286                         sctp_key_t *key = NULL;
4287                         size_t size;
4288
4289                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4290                         if (sca->sca_keylength == 0) {
4291                                 size = optsize - sizeof(struct sctp_authkey);
4292                         } else {
4293                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4294                                         size = sca->sca_keylength;
4295                                 } else {
4296                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4297                                         error = EINVAL;
4298                                         break;
4299                                 }
4300                         }
4301                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4302
4303                         if (stcb) {
4304                                 shared_keys = &stcb->asoc.shared_keys;
4305                                 /* clear the cached keys for this key id */
4306                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4307                                 /*
4308                                  * create the new shared key and
4309                                  * insert/replace it
4310                                  */
4311                                 if (size > 0) {
4312                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4313                                         if (key == NULL) {
4314                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4315                                                 error = ENOMEM;
4316                                                 SCTP_TCB_UNLOCK(stcb);
4317                                                 break;
4318                                         }
4319                                 }
4320                                 shared_key = sctp_alloc_sharedkey();
4321                                 if (shared_key == NULL) {
4322                                         sctp_free_key(key);
4323                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4324                                         error = ENOMEM;
4325                                         SCTP_TCB_UNLOCK(stcb);
4326                                         break;
4327                                 }
4328                                 shared_key->key = key;
4329                                 shared_key->keyid = sca->sca_keynumber;
4330                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4331                                 SCTP_TCB_UNLOCK(stcb);
4332                         } else {
4333                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4334                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4335                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4336                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4337                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4338                                         SCTP_INP_WLOCK(inp);
4339                                         shared_keys = &inp->sctp_ep.shared_keys;
4340                                         /*
4341                                          * clear the cached keys on all
4342                                          * assocs for this key id
4343                                          */
4344                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4345                                         /*
4346                                          * create the new shared key and
4347                                          * insert/replace it
4348                                          */
4349                                         if (size > 0) {
4350                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4351                                                 if (key == NULL) {
4352                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4353                                                         error = ENOMEM;
4354                                                         SCTP_INP_WUNLOCK(inp);
4355                                                         break;
4356                                                 }
4357                                         }
4358                                         shared_key = sctp_alloc_sharedkey();
4359                                         if (shared_key == NULL) {
4360                                                 sctp_free_key(key);
4361                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4362                                                 error = ENOMEM;
4363                                                 SCTP_INP_WUNLOCK(inp);
4364                                                 break;
4365                                         }
4366                                         shared_key->key = key;
4367                                         shared_key->keyid = sca->sca_keynumber;
4368                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4369                                         SCTP_INP_WUNLOCK(inp);
4370                                 }
4371                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4372                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4373                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4374                                         SCTP_INP_RLOCK(inp);
4375                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4376                                                 SCTP_TCB_LOCK(stcb);
4377                                                 shared_keys = &stcb->asoc.shared_keys;
4378                                                 /*
4379                                                  * clear the cached keys for
4380                                                  * this key id
4381                                                  */
4382                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4383                                                 /*
4384                                                  * create the new shared key
4385                                                  * and insert/replace it
4386                                                  */
4387                                                 if (size > 0) {
4388                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4389                                                         if (key == NULL) {
4390                                                                 SCTP_TCB_UNLOCK(stcb);
4391                                                                 continue;
4392                                                         }
4393                                                 }
4394                                                 shared_key = sctp_alloc_sharedkey();
4395                                                 if (shared_key == NULL) {
4396                                                         sctp_free_key(key);
4397                                                         SCTP_TCB_UNLOCK(stcb);
4398                                                         continue;
4399                                                 }
4400                                                 shared_key->key = key;
4401                                                 shared_key->keyid = sca->sca_keynumber;
4402                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4403                                                 SCTP_TCB_UNLOCK(stcb);
4404                                         }
4405                                         SCTP_INP_RUNLOCK(inp);
4406                                 }
4407                         }
4408                         break;
4409                 }
4410         case SCTP_HMAC_IDENT:
4411                 {
4412                         struct sctp_hmacalgo *shmac;
4413                         sctp_hmaclist_t *hmaclist;
4414                         uint16_t hmacid;
4415                         uint32_t i;
4416
4417                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4418                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4419                             (shmac->shmac_number_of_idents > 0xffff)) {
4420                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4421                                 error = EINVAL;
4422                                 break;
4423                         }
4424
4425                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4426                         if (hmaclist == NULL) {
4427                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4428                                 error = ENOMEM;
4429                                 break;
4430                         }
4431                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4432                                 hmacid = shmac->shmac_idents[i];
4433                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4434                                          /* invalid HMACs were found */ ;
4435                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4436                                         error = EINVAL;
4437                                         sctp_free_hmaclist(hmaclist);
4438                                         goto sctp_set_hmac_done;
4439                                 }
4440                         }
4441                         for (i = 0; i < hmaclist->num_algo; i++) {
4442                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4443                                         /* already in list */
4444                                         break;
4445                                 }
4446                         }
4447                         if (i == hmaclist->num_algo) {
4448                                 /* not found in list */
4449                                 sctp_free_hmaclist(hmaclist);
4450                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4451                                 error = EINVAL;
4452                                 break;
4453                         }
4454                         /* set it on the endpoint */
4455                         SCTP_INP_WLOCK(inp);
4456                         if (inp->sctp_ep.local_hmacs)
4457                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4458                         inp->sctp_ep.local_hmacs = hmaclist;
4459                         SCTP_INP_WUNLOCK(inp);
4460         sctp_set_hmac_done:
4461                         break;
4462                 }
4463         case SCTP_AUTH_ACTIVE_KEY:
4464                 {
4465                         struct sctp_authkeyid *scact;
4466
4467                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4468                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4469
4470                         /* set the active key on the right place */
4471                         if (stcb) {
4472                                 /* set the active key on the assoc */
4473                                 if (sctp_auth_setactivekey(stcb,
4474                                     scact->scact_keynumber)) {
4475                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4476                                             SCTP_FROM_SCTP_USRREQ,
4477                                             EINVAL);
4478                                         error = EINVAL;
4479                                 }
4480                                 SCTP_TCB_UNLOCK(stcb);
4481                         } else {
4482                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4483                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4484                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4485                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4486                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4487                                         SCTP_INP_WLOCK(inp);
4488                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4489                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4490                                                 error = EINVAL;
4491                                         }
4492                                         SCTP_INP_WUNLOCK(inp);
4493                                 }
4494                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4495                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4496                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4497                                         SCTP_INP_RLOCK(inp);
4498                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4499                                                 SCTP_TCB_LOCK(stcb);
4500                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4501                                                 SCTP_TCB_UNLOCK(stcb);
4502                                         }
4503                                         SCTP_INP_RUNLOCK(inp);
4504                                 }
4505                         }
4506                         break;
4507                 }
4508         case SCTP_AUTH_DELETE_KEY:
4509                 {
4510                         struct sctp_authkeyid *scdel;
4511
4512                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4513                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4514
4515                         /* delete the key from the right place */
4516                         if (stcb) {
4517                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4518                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4519                                         error = EINVAL;
4520                                 }
4521                                 SCTP_TCB_UNLOCK(stcb);
4522                         } else {
4523                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4524                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4525                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4526                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4527                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4528                                         SCTP_INP_WLOCK(inp);
4529                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4530                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4531                                                 error = EINVAL;
4532                                         }
4533                                         SCTP_INP_WUNLOCK(inp);
4534                                 }
4535                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4536                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4537                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4538                                         SCTP_INP_RLOCK(inp);
4539                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4540                                                 SCTP_TCB_LOCK(stcb);
4541                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4542                                                 SCTP_TCB_UNLOCK(stcb);
4543                                         }
4544                                         SCTP_INP_RUNLOCK(inp);
4545                                 }
4546                         }
4547                         break;
4548                 }
4549         case SCTP_AUTH_DEACTIVATE_KEY:
4550                 {
4551                         struct sctp_authkeyid *keyid;
4552
4553                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4554                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4555
4556                         /* deactivate the key from the right place */
4557                         if (stcb) {
4558                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4559                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4560                                         error = EINVAL;
4561                                 }
4562                                 SCTP_TCB_UNLOCK(stcb);
4563                         } else {
4564                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4565                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4566                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4567                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4568                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4569                                         SCTP_INP_WLOCK(inp);
4570                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4571                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4572                                                 error = EINVAL;
4573                                         }
4574                                         SCTP_INP_WUNLOCK(inp);
4575                                 }
4576                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4577                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4578                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4579                                         SCTP_INP_RLOCK(inp);
4580                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4581                                                 SCTP_TCB_LOCK(stcb);
4582                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4583                                                 SCTP_TCB_UNLOCK(stcb);
4584                                         }
4585                                         SCTP_INP_RUNLOCK(inp);
4586                                 }
4587                         }
4588                         break;
4589                 }
4590         case SCTP_ENABLE_STREAM_RESET:
4591                 {
4592                         struct sctp_assoc_value *av;
4593
4594                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4595                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4596                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4597                                 error = EINVAL;
4598                                 break;
4599                         }
4600                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4601                         if (stcb) {
4602                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4603                                 SCTP_TCB_UNLOCK(stcb);
4604                         } else {
4605                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4606                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4607                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4608                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4609                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4610                                         SCTP_INP_WLOCK(inp);
4611                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4612                                         SCTP_INP_WUNLOCK(inp);
4613                                 }
4614                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4615                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4616                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4617                                         SCTP_INP_RLOCK(inp);
4618                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4619                                                 SCTP_TCB_LOCK(stcb);
4620                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4621                                                 SCTP_TCB_UNLOCK(stcb);
4622                                         }
4623                                         SCTP_INP_RUNLOCK(inp);
4624                                 }
4625                         }
4626                         break;
4627                 }
4628         case SCTP_RESET_STREAMS:
4629                 {
4630                         struct sctp_reset_streams *strrst;
4631                         int i, send_out = 0;
4632                         int send_in = 0;
4633
4634                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4635                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4636                         if (stcb == NULL) {
4637                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4638                                 error = ENOENT;
4639                                 break;
4640                         }
4641                         if (stcb->asoc.reconfig_supported == 0) {
4642                                 /*
4643                                  * Peer does not support the chunk type.
4644                                  */
4645                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4646                                 error = EOPNOTSUPP;
4647                                 SCTP_TCB_UNLOCK(stcb);
4648                                 break;
4649                         }
4650                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4651                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4652                                 error = EINVAL;
4653                                 SCTP_TCB_UNLOCK(stcb);
4654                                 break;
4655                         }
4656                         if (sizeof(struct sctp_reset_streams) +
4657                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4658                                 error = EINVAL;
4659                                 SCTP_TCB_UNLOCK(stcb);
4660                                 break;
4661                         }
4662                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4663                                 send_in = 1;
4664                                 if (stcb->asoc.stream_reset_outstanding) {
4665                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4666                                         error = EALREADY;
4667                                         SCTP_TCB_UNLOCK(stcb);
4668                                         break;
4669                                 }
4670                         }
4671                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4672                                 send_out = 1;
4673                         }
4674                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4675                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4676                                 error = ENOMEM;
4677                                 SCTP_TCB_UNLOCK(stcb);
4678                                 break;
4679                         }
4680                         if ((send_in == 0) && (send_out == 0)) {
4681                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4682                                 error = EINVAL;
4683                                 SCTP_TCB_UNLOCK(stcb);
4684                                 break;
4685                         }
4686                         for (i = 0; i < strrst->srs_number_streams; i++) {
4687                                 if ((send_in) &&
4688                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4689                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4690                                         error = EINVAL;
4691                                         break;
4692                                 }
4693                                 if ((send_out) &&
4694                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4695                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4696                                         error = EINVAL;
4697                                         break;
4698                                 }
4699                         }
4700                         if (error) {
4701                                 SCTP_TCB_UNLOCK(stcb);
4702                                 break;
4703                         }
4704                         if (send_out) {
4705                                 int cnt;
4706                                 uint16_t strm;
4707
4708                                 if (strrst->srs_number_streams) {
4709                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4710                                                 strm = strrst->srs_stream_list[i];
4711                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4712                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4713                                                         cnt++;
4714                                                 }
4715                                         }
4716                                 } else {
4717                                         /* Its all */
4718                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4719                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4720                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4721                                                         cnt++;
4722                                                 }
4723                                         }
4724                                 }
4725                         }
4726                         if (send_in) {
4727                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4728                                     strrst->srs_stream_list,
4729                                     send_in, 0, 0, 0, 0, 0);
4730                         } else {
4731                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4732                         }
4733                         if (error == 0) {
4734                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4735                         } else {
4736                                 /*
4737                                  * For outgoing streams don't report any
4738                                  * problems in sending the request to the
4739                                  * application. XXX: Double check resetting
4740                                  * incoming streams.
4741                                  */
4742                                 error = 0;
4743                         }
4744                         SCTP_TCB_UNLOCK(stcb);
4745                         break;
4746                 }
4747         case SCTP_ADD_STREAMS:
4748                 {
4749                         struct sctp_add_streams *stradd;
4750                         uint8_t addstream = 0;
4751                         uint16_t add_o_strmcnt = 0;
4752                         uint16_t add_i_strmcnt = 0;
4753
4754                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4755                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4756                         if (stcb == NULL) {
4757                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4758                                 error = ENOENT;
4759                                 break;
4760                         }
4761                         if (stcb->asoc.reconfig_supported == 0) {
4762                                 /*
4763                                  * Peer does not support the chunk type.
4764                                  */
4765                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4766                                 error = EOPNOTSUPP;
4767                                 SCTP_TCB_UNLOCK(stcb);
4768                                 break;
4769                         }
4770                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4771                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4772                                 error = EINVAL;
4773                                 SCTP_TCB_UNLOCK(stcb);
4774                                 break;
4775                         }
4776                         if (stcb->asoc.stream_reset_outstanding) {
4777                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4778                                 error = EALREADY;
4779                                 SCTP_TCB_UNLOCK(stcb);
4780                                 break;
4781                         }
4782                         if ((stradd->sas_outstrms == 0) &&
4783                             (stradd->sas_instrms == 0)) {
4784                                 error = EINVAL;
4785                                 goto skip_stuff;
4786                         }
4787                         if (stradd->sas_outstrms) {
4788                                 addstream = 1;
4789                                 /* We allocate here */
4790                                 add_o_strmcnt = stradd->sas_outstrms;
4791                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4792                                         /* You can't have more than 64k */
4793                                         error = EINVAL;
4794                                         goto skip_stuff;
4795                                 }
4796                         }
4797                         if (stradd->sas_instrms) {
4798                                 int cnt;
4799
4800                                 addstream |= 2;
4801                                 /*
4802                                  * We allocate inside
4803                                  * sctp_send_str_reset_req()
4804                                  */
4805                                 add_i_strmcnt = stradd->sas_instrms;
4806                                 cnt = add_i_strmcnt;
4807                                 cnt += stcb->asoc.streamincnt;
4808                                 if (cnt > 0x0000ffff) {
4809                                         /* You can't have more than 64k */
4810                                         error = EINVAL;
4811                                         goto skip_stuff;
4812                                 }
4813                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4814                                         /* More than you are allowed */
4815                                         error = EINVAL;
4816                                         goto skip_stuff;
4817                                 }
4818                         }
4819                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4820                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4821         skip_stuff:
4822                         SCTP_TCB_UNLOCK(stcb);
4823                         break;
4824                 }
4825         case SCTP_RESET_ASSOC:
4826                 {
4827                         int i;
4828                         uint32_t *value;
4829
4830                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4831                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4832                         if (stcb == NULL) {
4833                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4834                                 error = ENOENT;
4835                                 break;
4836                         }
4837                         if (stcb->asoc.reconfig_supported == 0) {
4838                                 /*
4839                                  * Peer does not support the chunk type.
4840                                  */
4841                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4842                                 error = EOPNOTSUPP;
4843                                 SCTP_TCB_UNLOCK(stcb);
4844                                 break;
4845                         }
4846                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4848                                 error = EINVAL;
4849                                 SCTP_TCB_UNLOCK(stcb);
4850                                 break;
4851                         }
4852                         if (stcb->asoc.stream_reset_outstanding) {
4853                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4854                                 error = EALREADY;
4855                                 SCTP_TCB_UNLOCK(stcb);
4856                                 break;
4857                         }
4858                         /*
4859                          * Is there any data pending in the send or sent
4860                          * queues?
4861                          */
4862                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4863                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4864                 busy_out:
4865                                 error = EBUSY;
4866                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4867                                 SCTP_TCB_UNLOCK(stcb);
4868                                 break;
4869                         }
4870                         /* Do any streams have data queued? */
4871                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4872                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4873                                         goto busy_out;
4874                                 }
4875                         }
4876                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4877                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4878                         SCTP_TCB_UNLOCK(stcb);
4879                         break;
4880                 }
4881         case SCTP_CONNECT_X:
4882                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4883                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4884                         error = EINVAL;
4885                         break;
4886                 }
4887                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4888                 break;
4889         case SCTP_CONNECT_X_DELAYED:
4890                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4891                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4892                         error = EINVAL;
4893                         break;
4894                 }
4895                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4896                 break;
4897         case SCTP_CONNECT_X_COMPLETE:
4898                 {
4899                         struct sockaddr *sa;
4900
4901                         /* FIXME MT: check correct? */
4902                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4903
4904                         /* find tcb */
4905                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4906                                 SCTP_INP_RLOCK(inp);
4907                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4908                                 if (stcb) {
4909                                         SCTP_TCB_LOCK(stcb);
4910                                 }
4911                                 SCTP_INP_RUNLOCK(inp);
4912                         } else {
4913                                 /*
4914                                  * We increment here since
4915                                  * sctp_findassociation_ep_addr() wil do a
4916                                  * decrement if it finds the stcb as long as
4917                                  * the locked tcb (last argument) is NOT a
4918                                  * TCB.. aka NULL.
4919                                  */
4920                                 SCTP_INP_INCR_REF(inp);
4921                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4922                                 if (stcb == NULL) {
4923                                         SCTP_INP_DECR_REF(inp);
4924                                 }
4925                         }
4926
4927                         if (stcb == NULL) {
4928                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4929                                 error = ENOENT;
4930                                 break;
4931                         }
4932                         if (stcb->asoc.delayed_connection == 1) {
4933                                 stcb->asoc.delayed_connection = 0;
4934                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4935                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4936                                     stcb->asoc.primary_destination,
4937                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4938                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4939                         } else {
4940                                 /*
4941                                  * already expired or did not use delayed
4942                                  * connectx
4943                                  */
4944                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4945                                 error = EALREADY;
4946                         }
4947                         SCTP_TCB_UNLOCK(stcb);
4948                         break;
4949                 }
4950         case SCTP_MAX_BURST:
4951                 {
4952                         struct sctp_assoc_value *av;
4953
4954                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4955                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4956
4957                         if (stcb) {
4958                                 stcb->asoc.max_burst = av->assoc_value;
4959                                 SCTP_TCB_UNLOCK(stcb);
4960                         } else {
4961                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4962                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4963                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4964                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4965                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4966                                         SCTP_INP_WLOCK(inp);
4967                                         inp->sctp_ep.max_burst = av->assoc_value;
4968                                         SCTP_INP_WUNLOCK(inp);
4969                                 }
4970                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4971                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4972                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4973                                         SCTP_INP_RLOCK(inp);
4974                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4975                                                 SCTP_TCB_LOCK(stcb);
4976                                                 stcb->asoc.max_burst = av->assoc_value;
4977                                                 SCTP_TCB_UNLOCK(stcb);
4978                                         }
4979                                         SCTP_INP_RUNLOCK(inp);
4980                                 }
4981                         }
4982                         break;
4983                 }
4984         case SCTP_MAXSEG:
4985                 {
4986                         struct sctp_assoc_value *av;
4987
4988                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4989                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4990
4991                         if (stcb) {
4992                                 stcb->asoc.sctp_frag_point = av->assoc_value;
4993                                 SCTP_TCB_UNLOCK(stcb);
4994                         } else {
4995                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4996                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4997                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4998                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
4999                                         SCTP_INP_WLOCK(inp);
5000                                         inp->sctp_frag_point = av->assoc_value;
5001                                         SCTP_INP_WUNLOCK(inp);
5002                                 } else {
5003                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5004                                         error = EINVAL;
5005                                 }
5006                         }
5007                         break;
5008                 }
5009         case SCTP_EVENTS:
5010                 {
5011                         struct sctp_event_subscribe *events;
5012
5013                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5014
5015                         SCTP_INP_WLOCK(inp);
5016                         if (events->sctp_data_io_event) {
5017                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5018                         } else {
5019                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5020                         }
5021
5022                         if (events->sctp_association_event) {
5023                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5024                         } else {
5025                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5026                         }
5027
5028                         if (events->sctp_address_event) {
5029                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5030                         } else {
5031                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5032                         }
5033
5034                         if (events->sctp_send_failure_event) {
5035                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5036                         } else {
5037                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5038                         }
5039
5040                         if (events->sctp_peer_error_event) {
5041                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5042                         } else {
5043                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5044                         }
5045
5046                         if (events->sctp_shutdown_event) {
5047                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5048                         } else {
5049                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5050                         }
5051
5052                         if (events->sctp_partial_delivery_event) {
5053                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5054                         } else {
5055                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5056                         }
5057
5058                         if (events->sctp_adaptation_layer_event) {
5059                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5060                         } else {
5061                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5062                         }
5063
5064                         if (events->sctp_authentication_event) {
5065                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5066                         } else {
5067                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5068                         }
5069
5070                         if (events->sctp_sender_dry_event) {
5071                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5072                         } else {
5073                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5074                         }
5075
5076                         if (events->sctp_stream_reset_event) {
5077                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5078                         } else {
5079                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5080                         }
5081                         SCTP_INP_WUNLOCK(inp);
5082
5083                         SCTP_INP_RLOCK(inp);
5084                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5085                                 SCTP_TCB_LOCK(stcb);
5086                                 if (events->sctp_association_event) {
5087                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5088                                 } else {
5089                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5090                                 }
5091                                 if (events->sctp_address_event) {
5092                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5093                                 } else {
5094                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5095                                 }
5096                                 if (events->sctp_send_failure_event) {
5097                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5098                                 } else {
5099                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5100                                 }
5101                                 if (events->sctp_peer_error_event) {
5102                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5103                                 } else {
5104                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5105                                 }
5106                                 if (events->sctp_shutdown_event) {
5107                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5108                                 } else {
5109                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5110                                 }
5111                                 if (events->sctp_partial_delivery_event) {
5112                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5113                                 } else {
5114                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5115                                 }
5116                                 if (events->sctp_adaptation_layer_event) {
5117                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5118                                 } else {
5119                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5120                                 }
5121                                 if (events->sctp_authentication_event) {
5122                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5123                                 } else {
5124                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5125                                 }
5126                                 if (events->sctp_sender_dry_event) {
5127                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5128                                 } else {
5129                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5130                                 }
5131                                 if (events->sctp_stream_reset_event) {
5132                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5133                                 } else {
5134                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5135                                 }
5136                                 SCTP_TCB_UNLOCK(stcb);
5137                         }
5138                         /*
5139                          * Send up the sender dry event only for 1-to-1
5140                          * style sockets.
5141                          */
5142                         if (events->sctp_sender_dry_event) {
5143                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5144                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5145                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5146                                         if (stcb) {
5147                                                 SCTP_TCB_LOCK(stcb);
5148                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5149                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5150                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5151                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5152                                                 }
5153                                                 SCTP_TCB_UNLOCK(stcb);
5154                                         }
5155                                 }
5156                         }
5157                         SCTP_INP_RUNLOCK(inp);
5158                         break;
5159                 }
5160         case SCTP_ADAPTATION_LAYER:
5161                 {
5162                         struct sctp_setadaptation *adap_bits;
5163
5164                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5165                         SCTP_INP_WLOCK(inp);
5166                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5167                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5168                         SCTP_INP_WUNLOCK(inp);
5169                         break;
5170                 }
5171 #ifdef SCTP_DEBUG
5172         case SCTP_SET_INITIAL_DBG_SEQ:
5173                 {
5174                         uint32_t *vvv;
5175
5176                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5177                         SCTP_INP_WLOCK(inp);
5178                         inp->sctp_ep.initial_sequence_debug = *vvv;
5179                         SCTP_INP_WUNLOCK(inp);
5180                         break;
5181                 }
5182 #endif
5183         case SCTP_DEFAULT_SEND_PARAM:
5184                 {
5185                         struct sctp_sndrcvinfo *s_info;
5186
5187                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5188                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5189
5190                         if (stcb) {
5191                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5192                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5193                                 } else {
5194                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5195                                         error = EINVAL;
5196                                 }
5197                                 SCTP_TCB_UNLOCK(stcb);
5198                         } else {
5199                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5200                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5201                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5202                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5203                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5204                                         SCTP_INP_WLOCK(inp);
5205                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5206                                         SCTP_INP_WUNLOCK(inp);
5207                                 }
5208                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5209                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5210                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5211                                         SCTP_INP_RLOCK(inp);
5212                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5213                                                 SCTP_TCB_LOCK(stcb);
5214                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5215                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5216                                                 }
5217                                                 SCTP_TCB_UNLOCK(stcb);
5218                                         }
5219                                         SCTP_INP_RUNLOCK(inp);
5220                                 }
5221                         }
5222                         break;
5223                 }
5224         case SCTP_PEER_ADDR_PARAMS:
5225                 {
5226                         struct sctp_paddrparams *paddrp;
5227                         struct sctp_nets *net;
5228                         struct sockaddr *addr;
5229 #if defined(INET) && defined(INET6)
5230                         struct sockaddr_in sin_store;
5231 #endif
5232
5233                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5234                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5235
5236 #if defined(INET) && defined(INET6)
5237                         if (paddrp->spp_address.ss_family == AF_INET6) {
5238                                 struct sockaddr_in6 *sin6;
5239
5240                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5241                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5242                                         in6_sin6_2_sin(&sin_store, sin6);
5243                                         addr = (struct sockaddr *)&sin_store;
5244                                 } else {
5245                                         addr = (struct sockaddr *)&paddrp->spp_address;
5246                                 }
5247                         } else {
5248                                 addr = (struct sockaddr *)&paddrp->spp_address;
5249                         }
5250 #else
5251                         addr = (struct sockaddr *)&paddrp->spp_address;
5252 #endif
5253                         if (stcb != NULL) {
5254                                 net = sctp_findnet(stcb, addr);
5255                         } else {
5256                                 /*
5257                                  * We increment here since
5258                                  * sctp_findassociation_ep_addr() wil do a
5259                                  * decrement if it finds the stcb as long as
5260                                  * the locked tcb (last argument) is NOT a
5261                                  * TCB.. aka NULL.
5262                                  */
5263                                 net = NULL;
5264                                 SCTP_INP_INCR_REF(inp);
5265                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5266                                     &net, NULL, NULL);
5267                                 if (stcb == NULL) {
5268                                         SCTP_INP_DECR_REF(inp);
5269                                 }
5270                         }
5271                         if ((stcb != NULL) && (net == NULL)) {
5272 #ifdef INET
5273                                 if (addr->sa_family == AF_INET) {
5274                                         struct sockaddr_in *sin;
5275
5276                                         sin = (struct sockaddr_in *)addr;
5277                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5278                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5279                                                 SCTP_TCB_UNLOCK(stcb);
5280                                                 error = EINVAL;
5281                                                 break;
5282                                         }
5283                                 } else
5284 #endif
5285 #ifdef INET6
5286                                 if (addr->sa_family == AF_INET6) {
5287                                         struct sockaddr_in6 *sin6;
5288
5289                                         sin6 = (struct sockaddr_in6 *)addr;
5290                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5291                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5292                                                 SCTP_TCB_UNLOCK(stcb);
5293                                                 error = EINVAL;
5294                                                 break;
5295                                         }
5296                                 } else
5297 #endif
5298                                 {
5299                                         error = EAFNOSUPPORT;
5300                                         SCTP_TCB_UNLOCK(stcb);
5301                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5302                                         break;
5303                                 }
5304                         }
5305                         /* sanity checks */
5306                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5307                                 if (stcb)
5308                                         SCTP_TCB_UNLOCK(stcb);
5309                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5310                                 return (EINVAL);
5311                         }
5312
5313                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5314                                 if (stcb)
5315                                         SCTP_TCB_UNLOCK(stcb);
5316                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5317                                 return (EINVAL);
5318                         }
5319                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5320                             (paddrp->spp_pathmtu > 0) &&
5321                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5322                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5323                                 if (stcb)
5324                                         SCTP_TCB_UNLOCK(stcb);
5325                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5326                                 return (EINVAL);
5327                         }
5328
5329                         if (stcb != NULL) {
5330                                 /************************TCB SPECIFIC SET ******************/
5331                                 if (net != NULL) {
5332                                         /************************NET SPECIFIC SET ******************/
5333                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5334                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5335                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5336                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5337                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5338                                                 }
5339                                                 net->dest_state |= SCTP_ADDR_NOHB;
5340                                         }
5341                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5342                                                 if (paddrp->spp_hbinterval) {
5343                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5344                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5345                                                         net->heart_beat_delay = 0;
5346                                                 }
5347                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5348                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5349                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5350                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5351                                         }
5352                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5353                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5354                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5355                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5356                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5357                                                 }
5358                                         }
5359                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5360                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5361                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5362                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5363                                                 }
5364                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5365                                                 if (paddrp->spp_pathmtu > 0) {
5366                                                         net->mtu = paddrp->spp_pathmtu;
5367                                                         switch (net->ro._l_addr.sa.sa_family) {
5368 #ifdef INET
5369                                                         case AF_INET:
5370                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5371                                                                 break;
5372 #endif
5373 #ifdef INET6
5374                                                         case AF_INET6:
5375                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5376                                                                 break;
5377 #endif
5378                                                         default:
5379                                                                 break;
5380                                                         }
5381                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5382                                                                 sctp_pathmtu_adjustment(stcb, net->mtu, true);
5383                                                         }
5384                                                 }
5385                                         }
5386                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5387                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5388                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5389                                                 }
5390                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5391                                         }
5392                                         if (paddrp->spp_pathmaxrxt > 0) {
5393                                                 if (net->dest_state & SCTP_ADDR_PF) {
5394                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5395                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5396                                                         }
5397                                                 } else {
5398                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5399                                                             (net->error_count > net->pf_threshold)) {
5400                                                                 net->dest_state |= SCTP_ADDR_PF;
5401                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5402                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5403                                                                     stcb->sctp_ep, stcb, net,
5404                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5405                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5406                                                         }
5407                                                 }
5408                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5409                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5410                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5411                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5412                                                         }
5413                                                 } else {
5414                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5415                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5416                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5417                                                         }
5418                                                 }
5419                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5420                                         }
5421                                         if (paddrp->spp_flags & SPP_DSCP) {
5422                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5423                                                 net->dscp |= 0x01;
5424                                         }
5425 #ifdef INET6
5426                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5427                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5428                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5429                                                         net->flowlabel |= 0x80000000;
5430                                                 }
5431                                         }
5432 #endif
5433                                 } else {
5434                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5435                                         if (paddrp->spp_pathmaxrxt > 0) {
5436                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5437                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5438                                                         if (net->dest_state & SCTP_ADDR_PF) {
5439                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5440                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5441                                                                 }
5442                                                         } else {
5443                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5444                                                                     (net->error_count > net->pf_threshold)) {
5445                                                                         net->dest_state |= SCTP_ADDR_PF;
5446                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5447                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5448                                                                             stcb->sctp_ep, stcb, net,
5449                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5450                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5451                                                                 }
5452                                                         }
5453                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5454                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5455                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5456                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5457                                                                 }
5458                                                         } else {
5459                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5460                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5461                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5462                                                                 }
5463                                                         }
5464                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5465                                                 }
5466                                         }
5467                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5468                                                 if (paddrp->spp_hbinterval != 0) {
5469                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5470                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5471                                                         stcb->asoc.heart_beat_delay = 0;
5472                                                 }
5473                                                 /* Turn back on the timer */
5474                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5475                                                         if (paddrp->spp_hbinterval != 0) {
5476                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5477                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5478                                                                 net->heart_beat_delay = 0;
5479                                                         }
5480                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5481                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5482                                                         }
5483                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5484                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5485                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5486                                                 }
5487                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5488                                         }
5489                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5490                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5491                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5492                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5493                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5494                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5495                                                                             inp, stcb, net,
5496                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5497                                                                 }
5498                                                         }
5499                                                 }
5500                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5501                                         }
5502                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5503                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5504                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5505                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5506                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5507                                                         }
5508                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5509                                                         if (paddrp->spp_pathmtu > 0) {
5510                                                                 net->mtu = paddrp->spp_pathmtu;
5511                                                                 switch (net->ro._l_addr.sa.sa_family) {
5512 #ifdef INET
5513                                                                 case AF_INET:
5514                                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5515                                                                         break;
5516 #endif
5517 #ifdef INET6
5518                                                                 case AF_INET6:
5519                                                                         net->mtu += SCTP_MIN_OVERHEAD;
5520                                                                         break;
5521 #endif
5522                                                                 default:
5523                                                                         break;
5524                                                                 }
5525                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5526                                                                         sctp_pathmtu_adjustment(stcb, net->mtu, true);
5527                                                                 }
5528                                                         }
5529                                                 }
5530                                                 if (paddrp->spp_pathmtu > 0) {
5531                                                         stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5532                                                 }
5533                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5534                                         }
5535                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5536                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5537                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5538                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5539                                                         }
5540                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5541                                                 }
5542                                                 stcb->asoc.default_mtu = 0;
5543                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5544                                         }
5545                                         if (paddrp->spp_flags & SPP_DSCP) {
5546                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5547                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5548                                                         net->dscp |= 0x01;
5549                                                 }
5550                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5551                                                 stcb->asoc.default_dscp |= 0x01;
5552                                         }
5553 #ifdef INET6
5554                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5555                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5556                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5557                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5558                                                                 net->flowlabel |= 0x80000000;
5559                                                         }
5560                                                 }
5561                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5562                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5563                                         }
5564 #endif
5565                                 }
5566                                 SCTP_TCB_UNLOCK(stcb);
5567                         } else {
5568                                 /************************NO TCB, SET TO default stuff ******************/
5569                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5570                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5571                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5572                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5573                                         SCTP_INP_WLOCK(inp);
5574                                         /*
5575                                          * For the TOS/FLOWLABEL stuff you
5576                                          * set it with the options on the
5577                                          * socket
5578                                          */
5579                                         if (paddrp->spp_pathmaxrxt > 0) {
5580                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5581                                         }
5582
5583                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5584                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5585                                         else if (paddrp->spp_hbinterval != 0) {
5586                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5587                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5588                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5589                                         }
5590
5591                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5592                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5593                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5594                                                 } else if (paddrp->spp_hbinterval) {
5595                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5596                                                 }
5597                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5598                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5599                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5600                                         }
5601                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5602                                                 inp->sctp_ep.default_mtu = 0;
5603                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5604                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5605                                                 if (paddrp->spp_pathmtu > 0) {
5606                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5607                                                 }
5608                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5609                                         }
5610                                         if (paddrp->spp_flags & SPP_DSCP) {
5611                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5612                                                 inp->sctp_ep.default_dscp |= 0x01;
5613                                         }
5614 #ifdef INET6
5615                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5616                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5617                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5618                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5619                                                 }
5620                                         }
5621 #endif
5622                                         SCTP_INP_WUNLOCK(inp);
5623                                 } else {
5624                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5625                                         error = EINVAL;
5626                                 }
5627                         }
5628                         break;
5629                 }
5630         case SCTP_RTOINFO:
5631                 {
5632                         struct sctp_rtoinfo *srto;
5633                         uint32_t new_init, new_min, new_max;
5634
5635                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5636                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5637
5638                         if (stcb) {
5639                                 if (srto->srto_initial)
5640                                         new_init = srto->srto_initial;
5641                                 else
5642                                         new_init = stcb->asoc.initial_rto;
5643                                 if (srto->srto_max)
5644                                         new_max = srto->srto_max;
5645                                 else
5646                                         new_max = stcb->asoc.maxrto;
5647                                 if (srto->srto_min)
5648                                         new_min = srto->srto_min;
5649                                 else
5650                                         new_min = stcb->asoc.minrto;
5651                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5652                                         stcb->asoc.initial_rto = new_init;
5653                                         stcb->asoc.maxrto = new_max;
5654                                         stcb->asoc.minrto = new_min;
5655                                 } else {
5656                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5657                                         error = EINVAL;
5658                                 }
5659                                 SCTP_TCB_UNLOCK(stcb);
5660                         } else {
5661                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5662                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5663                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5664                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5665                                         SCTP_INP_WLOCK(inp);
5666                                         if (srto->srto_initial)
5667                                                 new_init = srto->srto_initial;
5668                                         else
5669                                                 new_init = inp->sctp_ep.initial_rto;
5670                                         if (srto->srto_max)
5671                                                 new_max = srto->srto_max;
5672                                         else
5673                                                 new_max = inp->sctp_ep.sctp_maxrto;
5674                                         if (srto->srto_min)
5675                                                 new_min = srto->srto_min;
5676                                         else
5677                                                 new_min = inp->sctp_ep.sctp_minrto;
5678                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5679                                                 inp->sctp_ep.initial_rto = new_init;
5680                                                 inp->sctp_ep.sctp_maxrto = new_max;
5681                                                 inp->sctp_ep.sctp_minrto = new_min;
5682                                         } else {
5683                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5684                                                 error = EINVAL;
5685                                         }
5686                                         SCTP_INP_WUNLOCK(inp);
5687                                 } else {
5688                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5689                                         error = EINVAL;
5690                                 }
5691                         }
5692                         break;
5693                 }
5694         case SCTP_ASSOCINFO:
5695                 {
5696                         struct sctp_assocparams *sasoc;
5697
5698                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5699                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5700                         if (sasoc->sasoc_cookie_life > 0) {
5701                                 /* boundary check the cookie life */
5702                                 if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
5703                                         sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
5704                                 }
5705                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5706                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5707                                 }
5708                         }
5709                         if (stcb) {
5710                                 if (sasoc->sasoc_asocmaxrxt > 0) {
5711                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5712                                 }
5713                                 if (sasoc->sasoc_cookie_life > 0) {
5714                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5715                                 }
5716                                 SCTP_TCB_UNLOCK(stcb);
5717                         } else {
5718                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5719                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5720                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5721                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5722                                         SCTP_INP_WLOCK(inp);
5723                                         if (sasoc->sasoc_asocmaxrxt > 0) {
5724                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5725                                         }
5726                                         if (sasoc->sasoc_cookie_life > 0) {
5727                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5728                                         }
5729                                         SCTP_INP_WUNLOCK(inp);
5730                                 } else {
5731                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5732                                         error = EINVAL;
5733                                 }
5734                         }
5735                         break;
5736                 }
5737         case SCTP_INITMSG:
5738                 {
5739                         struct sctp_initmsg *sinit;
5740
5741                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5742                         SCTP_INP_WLOCK(inp);
5743                         if (sinit->sinit_num_ostreams)
5744                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5745
5746                         if (sinit->sinit_max_instreams)
5747                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5748
5749                         if (sinit->sinit_max_attempts)
5750                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5751
5752                         if (sinit->sinit_max_init_timeo)
5753                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5754                         SCTP_INP_WUNLOCK(inp);
5755                         break;
5756                 }
5757         case SCTP_PRIMARY_ADDR:
5758                 {
5759                         struct sctp_setprim *spa;
5760                         struct sctp_nets *net;
5761                         struct sockaddr *addr;
5762 #if defined(INET) && defined(INET6)
5763                         struct sockaddr_in sin_store;
5764 #endif
5765
5766                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5767                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5768
5769 #if defined(INET) && defined(INET6)
5770                         if (spa->ssp_addr.ss_family == AF_INET6) {
5771                                 struct sockaddr_in6 *sin6;
5772
5773                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5774                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5775                                         in6_sin6_2_sin(&sin_store, sin6);
5776                                         addr = (struct sockaddr *)&sin_store;
5777                                 } else {
5778                                         addr = (struct sockaddr *)&spa->ssp_addr;
5779                                 }
5780                         } else {
5781                                 addr = (struct sockaddr *)&spa->ssp_addr;
5782                         }
5783 #else
5784                         addr = (struct sockaddr *)&spa->ssp_addr;
5785 #endif
5786                         if (stcb != NULL) {
5787                                 net = sctp_findnet(stcb, addr);
5788                         } else {
5789                                 /*
5790                                  * We increment here since
5791                                  * sctp_findassociation_ep_addr() wil do a
5792                                  * decrement if it finds the stcb as long as
5793                                  * the locked tcb (last argument) is NOT a
5794                                  * TCB.. aka NULL.
5795                                  */
5796                                 net = NULL;
5797                                 SCTP_INP_INCR_REF(inp);
5798                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5799                                     &net, NULL, NULL);
5800                                 if (stcb == NULL) {
5801                                         SCTP_INP_DECR_REF(inp);
5802                                 }
5803                         }
5804
5805                         if ((stcb != NULL) && (net != NULL)) {
5806                                 if (net != stcb->asoc.primary_destination) {
5807                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5808                                                 /* Ok we need to set it */
5809                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5810                                                         if ((stcb->asoc.alternate) &&
5811                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5812                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5813                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5814                                                                 stcb->asoc.alternate = NULL;
5815                                                         }
5816                                                 } else {
5817                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5818                                                         error = EINVAL;
5819                                                 }
5820                                         } else {
5821                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5822                                                 error = EINVAL;
5823                                         }
5824                                 }
5825                         } else {
5826                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5827                                 error = EINVAL;
5828                         }
5829                         if (stcb != NULL) {
5830                                 SCTP_TCB_UNLOCK(stcb);
5831                         }
5832                         break;
5833                 }
5834         case SCTP_SET_DYNAMIC_PRIMARY:
5835                 {
5836                         union sctp_sockstore *ss;
5837
5838                         error = priv_check(curthread,
5839                             PRIV_NETINET_RESERVEDPORT);
5840                         if (error)
5841                                 break;
5842
5843                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5844                         /* SUPER USER CHECK? */
5845                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5846                         break;
5847                 }
5848         case SCTP_SET_PEER_PRIMARY_ADDR:
5849                 {
5850                         struct sctp_setpeerprim *sspp;
5851                         struct sockaddr *addr;
5852 #if defined(INET) && defined(INET6)
5853                         struct sockaddr_in sin_store;
5854 #endif
5855
5856                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5857                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5858                         if (stcb != NULL) {
5859                                 struct sctp_ifa *ifa;
5860
5861 #if defined(INET) && defined(INET6)
5862                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5863                                         struct sockaddr_in6 *sin6;
5864
5865                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5866                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5867                                                 in6_sin6_2_sin(&sin_store, sin6);
5868                                                 addr = (struct sockaddr *)&sin_store;
5869                                         } else {
5870                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5871                                         }
5872                                 } else {
5873                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5874                                 }
5875 #else
5876                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5877 #endif
5878                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5879                                 if (ifa == NULL) {
5880                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5881                                         error = EINVAL;
5882                                         goto out_of_it;
5883                                 }
5884                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5885                                         /*
5886                                          * Must validate the ifa found is in
5887                                          * our ep
5888                                          */
5889                                         struct sctp_laddr *laddr;
5890                                         int found = 0;
5891
5892                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5893                                                 if (laddr->ifa == NULL) {
5894                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5895                                                             __func__);
5896                                                         continue;
5897                                                 }
5898                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5899                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5900                                                         continue;
5901                                                 }
5902                                                 if (laddr->ifa == ifa) {
5903                                                         found = 1;
5904                                                         break;
5905                                                 }
5906                                         }
5907                                         if (!found) {
5908                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5909                                                 error = EINVAL;
5910                                                 goto out_of_it;
5911                                         }
5912                                 } else {
5913                                         switch (addr->sa_family) {
5914 #ifdef INET
5915                                         case AF_INET:
5916                                                 {
5917                                                         struct sockaddr_in *sin;
5918
5919                                                         sin = (struct sockaddr_in *)addr;
5920                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5921                                                             &sin->sin_addr) != 0) {
5922                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5923                                                                 error = EINVAL;
5924                                                                 goto out_of_it;
5925                                                         }
5926                                                         break;
5927                                                 }
5928 #endif
5929 #ifdef INET6
5930                                         case AF_INET6:
5931                                                 {
5932                                                         struct sockaddr_in6 *sin6;
5933
5934                                                         sin6 = (struct sockaddr_in6 *)addr;
5935                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5936                                                             &sin6->sin6_addr) != 0) {
5937                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5938                                                                 error = EINVAL;
5939                                                                 goto out_of_it;
5940                                                         }
5941                                                         break;
5942                                                 }
5943 #endif
5944                                         default:
5945                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5946                                                 error = EINVAL;
5947                                                 goto out_of_it;
5948                                         }
5949                                 }
5950                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5951                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5952                                         error = EINVAL;
5953                                 }
5954                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5955                 out_of_it:
5956                                 SCTP_TCB_UNLOCK(stcb);
5957                         } else {
5958                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5959                                 error = EINVAL;
5960                         }
5961                         break;
5962                 }
5963         case SCTP_BINDX_ADD_ADDR:
5964                 {
5965                         struct sockaddr *sa;
5966                         struct thread *td;
5967
5968                         td = (struct thread *)p;
5969                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5970 #ifdef INET
5971                         if (sa->sa_family == AF_INET) {
5972                                 if (optsize < sizeof(struct sockaddr_in)) {
5973                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5974                                         error = EINVAL;
5975                                         break;
5976                                 }
5977                                 if (td != NULL &&
5978                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
5979                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5980                                         break;
5981                                 }
5982                         } else
5983 #endif
5984 #ifdef INET6
5985                         if (sa->sa_family == AF_INET6) {
5986                                 if (optsize < sizeof(struct sockaddr_in6)) {
5987                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5988                                         error = EINVAL;
5989                                         break;
5990                                 }
5991                                 if (td != NULL &&
5992                                     (error = prison_local_ip6(td->td_ucred,
5993                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
5994                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5995                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5996                                         break;
5997                                 }
5998                         } else
5999 #endif
6000                         {
6001                                 error = EAFNOSUPPORT;
6002                                 break;
6003                         }
6004                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
6005                         break;
6006                 }
6007         case SCTP_BINDX_REM_ADDR:
6008                 {
6009                         struct sockaddr *sa;
6010                         struct thread *td;
6011
6012                         td = (struct thread *)p;
6013
6014                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
6015 #ifdef INET
6016                         if (sa->sa_family == AF_INET) {
6017                                 if (optsize < sizeof(struct sockaddr_in)) {
6018                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6019                                         error = EINVAL;
6020                                         break;
6021                                 }
6022                                 if (td != NULL &&
6023                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6024                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6025                                         break;
6026                                 }
6027                         } else
6028 #endif
6029 #ifdef INET6
6030                         if (sa->sa_family == AF_INET6) {
6031                                 if (optsize < sizeof(struct sockaddr_in6)) {
6032                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6033                                         error = EINVAL;
6034                                         break;
6035                                 }
6036                                 if (td != NULL &&
6037                                     (error = prison_local_ip6(td->td_ucred,
6038                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6039                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6040                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6041                                         break;
6042                                 }
6043                         } else
6044 #endif
6045                         {
6046                                 error = EAFNOSUPPORT;
6047                                 break;
6048                         }
6049                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6050                         break;
6051                 }
6052         case SCTP_EVENT:
6053                 {
6054                         struct sctp_event *event;
6055                         uint32_t event_type;
6056
6057                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6058                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6059                         switch (event->se_type) {
6060                         case SCTP_ASSOC_CHANGE:
6061                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6062                                 break;
6063                         case SCTP_PEER_ADDR_CHANGE:
6064                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6065                                 break;
6066                         case SCTP_REMOTE_ERROR:
6067                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6068                                 break;
6069                         case SCTP_SEND_FAILED:
6070                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6071                                 break;
6072                         case SCTP_SHUTDOWN_EVENT:
6073                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6074                                 break;
6075                         case SCTP_ADAPTATION_INDICATION:
6076                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6077                                 break;
6078                         case SCTP_PARTIAL_DELIVERY_EVENT:
6079                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6080                                 break;
6081                         case SCTP_AUTHENTICATION_EVENT:
6082                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6083                                 break;
6084                         case SCTP_STREAM_RESET_EVENT:
6085                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6086                                 break;
6087                         case SCTP_SENDER_DRY_EVENT:
6088                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6089                                 break;
6090                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6091                                 event_type = 0;
6092                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6093                                 error = ENOTSUP;
6094                                 break;
6095                         case SCTP_ASSOC_RESET_EVENT:
6096                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6097                                 break;
6098                         case SCTP_STREAM_CHANGE_EVENT:
6099                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6100                                 break;
6101                         case SCTP_SEND_FAILED_EVENT:
6102                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6103                                 break;
6104                         default:
6105                                 event_type = 0;
6106                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6107                                 error = EINVAL;
6108                                 break;
6109                         }
6110                         if (event_type > 0) {
6111                                 if (stcb) {
6112                                         if (event->se_on) {
6113                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6114                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6115                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6116                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6117                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6118                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6119                                                         }
6120                                                 }
6121                                         } else {
6122                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6123                                         }
6124                                         SCTP_TCB_UNLOCK(stcb);
6125                                 } else {
6126                                         /*
6127                                          * We don't want to send up a storm
6128                                          * of events, so return an error for
6129                                          * sender dry events
6130                                          */
6131                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6132                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6133                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6134                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6135                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6136                                                 error = ENOTSUP;
6137                                                 break;
6138                                         }
6139                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6140                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6141                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6142                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6143                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6144                                                 SCTP_INP_WLOCK(inp);
6145                                                 if (event->se_on) {
6146                                                         sctp_feature_on(inp, event_type);
6147                                                 } else {
6148                                                         sctp_feature_off(inp, event_type);
6149                                                 }
6150                                                 SCTP_INP_WUNLOCK(inp);
6151                                         }
6152                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6153                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6154                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6155                                                 SCTP_INP_RLOCK(inp);
6156                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6157                                                         SCTP_TCB_LOCK(stcb);
6158                                                         if (event->se_on) {
6159                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6160                                                         } else {
6161                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6162                                                         }
6163                                                         SCTP_TCB_UNLOCK(stcb);
6164                                                 }
6165                                                 SCTP_INP_RUNLOCK(inp);
6166                                         }
6167                                 }
6168                         } else {
6169                                 if (stcb) {
6170                                         SCTP_TCB_UNLOCK(stcb);
6171                                 }
6172                         }
6173                         break;
6174                 }
6175         case SCTP_RECVRCVINFO:
6176                 {
6177                         int *onoff;
6178
6179                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6180                         SCTP_INP_WLOCK(inp);
6181                         if (*onoff != 0) {
6182                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6183                         } else {
6184                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6185                         }
6186                         SCTP_INP_WUNLOCK(inp);
6187                         break;
6188                 }
6189         case SCTP_RECVNXTINFO:
6190                 {
6191                         int *onoff;
6192
6193                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6194                         SCTP_INP_WLOCK(inp);
6195                         if (*onoff != 0) {
6196                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6197                         } else {
6198                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6199                         }
6200                         SCTP_INP_WUNLOCK(inp);
6201                         break;
6202                 }
6203         case SCTP_DEFAULT_SNDINFO:
6204                 {
6205                         struct sctp_sndinfo *info;
6206                         uint16_t policy;
6207
6208                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6209                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6210
6211                         if (stcb) {
6212                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6213                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6214                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6215                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6216                                         stcb->asoc.def_send.sinfo_flags |= policy;
6217                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6218                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6219                                 } else {
6220                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6221                                         error = EINVAL;
6222                                 }
6223                                 SCTP_TCB_UNLOCK(stcb);
6224                         } else {
6225                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6226                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6227                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6228                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6229                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6230                                         SCTP_INP_WLOCK(inp);
6231                                         inp->def_send.sinfo_stream = info->snd_sid;
6232                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6233                                         inp->def_send.sinfo_flags = info->snd_flags;
6234                                         inp->def_send.sinfo_flags |= policy;
6235                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6236                                         inp->def_send.sinfo_context = info->snd_context;
6237                                         SCTP_INP_WUNLOCK(inp);
6238                                 }
6239                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6240                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6241                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6242                                         SCTP_INP_RLOCK(inp);
6243                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6244                                                 SCTP_TCB_LOCK(stcb);
6245                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6246                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6247                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6248                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6249                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6250                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6251                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6252                                                 }
6253                                                 SCTP_TCB_UNLOCK(stcb);
6254                                         }
6255                                         SCTP_INP_RUNLOCK(inp);
6256                                 }
6257                         }
6258                         break;
6259                 }
6260         case SCTP_DEFAULT_PRINFO:
6261                 {
6262                         struct sctp_default_prinfo *info;
6263
6264                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6265                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6266
6267                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6268                                 if (stcb) {
6269                                         SCTP_TCB_UNLOCK(stcb);
6270                                 }
6271                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6272                                 error = EINVAL;
6273                                 break;
6274                         }
6275                         if (stcb) {
6276                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6277                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6278                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6279                                 SCTP_TCB_UNLOCK(stcb);
6280                         } else {
6281                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6282                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6283                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6284                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6285                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6286                                         SCTP_INP_WLOCK(inp);
6287                                         inp->def_send.sinfo_flags &= 0xfff0;
6288                                         inp->def_send.sinfo_flags |= info->pr_policy;
6289                                         inp->def_send.sinfo_timetolive = info->pr_value;
6290                                         SCTP_INP_WUNLOCK(inp);
6291                                 }
6292                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6293                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6294                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6295                                         SCTP_INP_RLOCK(inp);
6296                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6297                                                 SCTP_TCB_LOCK(stcb);
6298                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6299                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6300                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6301                                                 SCTP_TCB_UNLOCK(stcb);
6302                                         }
6303                                         SCTP_INP_RUNLOCK(inp);
6304                                 }
6305                         }
6306                         break;
6307                 }
6308         case SCTP_PEER_ADDR_THLDS:
6309                 /* Applies to the specific association */
6310                 {
6311                         struct sctp_paddrthlds *thlds;
6312                         struct sctp_nets *net;
6313                         struct sockaddr *addr;
6314 #if defined(INET) && defined(INET6)
6315                         struct sockaddr_in sin_store;
6316 #endif
6317
6318                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6319                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6320
6321 #if defined(INET) && defined(INET6)
6322                         if (thlds->spt_address.ss_family == AF_INET6) {
6323                                 struct sockaddr_in6 *sin6;
6324
6325                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6326                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6327                                         in6_sin6_2_sin(&sin_store, sin6);
6328                                         addr = (struct sockaddr *)&sin_store;
6329                                 } else {
6330                                         addr = (struct sockaddr *)&thlds->spt_address;
6331                                 }
6332                         } else {
6333                                 addr = (struct sockaddr *)&thlds->spt_address;
6334                         }
6335 #else
6336                         addr = (struct sockaddr *)&thlds->spt_address;
6337 #endif
6338                         if (stcb != NULL) {
6339                                 net = sctp_findnet(stcb, addr);
6340                         } else {
6341                                 /*
6342                                  * We increment here since
6343                                  * sctp_findassociation_ep_addr() wil do a
6344                                  * decrement if it finds the stcb as long as
6345                                  * the locked tcb (last argument) is NOT a
6346                                  * TCB.. aka NULL.
6347                                  */
6348                                 net = NULL;
6349                                 SCTP_INP_INCR_REF(inp);
6350                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6351                                     &net, NULL, NULL);
6352                                 if (stcb == NULL) {
6353                                         SCTP_INP_DECR_REF(inp);
6354                                 }
6355                         }
6356                         if ((stcb != NULL) && (net == NULL)) {
6357 #ifdef INET
6358                                 if (addr->sa_family == AF_INET) {
6359                                         struct sockaddr_in *sin;
6360
6361                                         sin = (struct sockaddr_in *)addr;
6362                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6363                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6364                                                 SCTP_TCB_UNLOCK(stcb);
6365                                                 error = EINVAL;
6366                                                 break;
6367                                         }
6368                                 } else
6369 #endif
6370 #ifdef INET6
6371                                 if (addr->sa_family == AF_INET6) {
6372                                         struct sockaddr_in6 *sin6;
6373
6374                                         sin6 = (struct sockaddr_in6 *)addr;
6375                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6376                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6377                                                 SCTP_TCB_UNLOCK(stcb);
6378                                                 error = EINVAL;
6379                                                 break;
6380                                         }
6381                                 } else
6382 #endif
6383                                 {
6384                                         error = EAFNOSUPPORT;
6385                                         SCTP_TCB_UNLOCK(stcb);
6386                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6387                                         break;
6388                                 }
6389                         }
6390                         if (thlds->spt_pathcpthld != 0xffff) {
6391                                 if (stcb != NULL) {
6392                                         SCTP_TCB_UNLOCK(stcb);
6393                                 }
6394                                 error = EINVAL;
6395                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6396                                 break;
6397                         }
6398                         if (stcb != NULL) {
6399                                 if (net != NULL) {
6400                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6401                                         net->pf_threshold = thlds->spt_pathpfthld;
6402                                         if (net->dest_state & SCTP_ADDR_PF) {
6403                                                 if ((net->error_count > net->failure_threshold) ||
6404                                                     (net->error_count <= net->pf_threshold)) {
6405                                                         net->dest_state &= ~SCTP_ADDR_PF;
6406                                                 }
6407                                         } else {
6408                                                 if ((net->error_count > net->pf_threshold) &&
6409                                                     (net->error_count <= net->failure_threshold)) {
6410                                                         net->dest_state |= SCTP_ADDR_PF;
6411                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6412                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6413                                                             stcb->sctp_ep, stcb, net,
6414                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6415                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6416                                                 }
6417                                         }
6418                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6419                                                 if (net->error_count > net->failure_threshold) {
6420                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6421                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6422                                                 }
6423                                         } else {
6424                                                 if (net->error_count <= net->failure_threshold) {
6425                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6426                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6427                                                 }
6428                                         }
6429                                 } else {
6430                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6431                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6432                                                 net->pf_threshold = thlds->spt_pathpfthld;
6433                                                 if (net->dest_state & SCTP_ADDR_PF) {
6434                                                         if ((net->error_count > net->failure_threshold) ||
6435                                                             (net->error_count <= net->pf_threshold)) {
6436                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6437                                                         }
6438                                                 } else {
6439                                                         if ((net->error_count > net->pf_threshold) &&
6440                                                             (net->error_count <= net->failure_threshold)) {
6441                                                                 net->dest_state |= SCTP_ADDR_PF;
6442                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6443                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6444                                                                     stcb->sctp_ep, stcb, net,
6445                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6446                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6447                                                         }
6448                                                 }
6449                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6450                                                         if (net->error_count > net->failure_threshold) {
6451                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6452                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6453                                                         }
6454                                                 } else {
6455                                                         if (net->error_count <= net->failure_threshold) {
6456                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6457                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6458                                                         }
6459                                                 }
6460                                         }
6461                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6462                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6463                                 }
6464                                 SCTP_TCB_UNLOCK(stcb);
6465                         } else {
6466                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6467                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6468                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6469                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6470                                         SCTP_INP_WLOCK(inp);
6471                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6472                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6473                                         SCTP_INP_WUNLOCK(inp);
6474                                 } else {
6475                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6476                                         error = EINVAL;
6477                                 }
6478                         }
6479                         break;
6480                 }
6481         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6482                 {
6483                         struct sctp_udpencaps *encaps;
6484                         struct sctp_nets *net;
6485                         struct sockaddr *addr;
6486 #if defined(INET) && defined(INET6)
6487                         struct sockaddr_in sin_store;
6488 #endif
6489
6490                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6491                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6492
6493 #if defined(INET) && defined(INET6)
6494                         if (encaps->sue_address.ss_family == AF_INET6) {
6495                                 struct sockaddr_in6 *sin6;
6496
6497                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6498                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6499                                         in6_sin6_2_sin(&sin_store, sin6);
6500                                         addr = (struct sockaddr *)&sin_store;
6501                                 } else {
6502                                         addr = (struct sockaddr *)&encaps->sue_address;
6503                                 }
6504                         } else {
6505                                 addr = (struct sockaddr *)&encaps->sue_address;
6506                         }
6507 #else
6508                         addr = (struct sockaddr *)&encaps->sue_address;
6509 #endif
6510                         if (stcb != NULL) {
6511                                 net = sctp_findnet(stcb, addr);
6512                         } else {
6513                                 /*
6514                                  * We increment here since
6515                                  * sctp_findassociation_ep_addr() wil do a
6516                                  * decrement if it finds the stcb as long as
6517                                  * the locked tcb (last argument) is NOT a
6518                                  * TCB.. aka NULL.
6519                                  */
6520                                 net = NULL;
6521                                 SCTP_INP_INCR_REF(inp);
6522                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6523                                 if (stcb == NULL) {
6524                                         SCTP_INP_DECR_REF(inp);
6525                                 }
6526                         }
6527                         if ((stcb != NULL) && (net == NULL)) {
6528 #ifdef INET
6529                                 if (addr->sa_family == AF_INET) {
6530                                         struct sockaddr_in *sin;
6531
6532                                         sin = (struct sockaddr_in *)addr;
6533                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6534                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6535                                                 SCTP_TCB_UNLOCK(stcb);
6536                                                 error = EINVAL;
6537                                                 break;
6538                                         }
6539                                 } else
6540 #endif
6541 #ifdef INET6
6542                                 if (addr->sa_family == AF_INET6) {
6543                                         struct sockaddr_in6 *sin6;
6544
6545                                         sin6 = (struct sockaddr_in6 *)addr;
6546                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6547                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6548                                                 SCTP_TCB_UNLOCK(stcb);
6549                                                 error = EINVAL;
6550                                                 break;
6551                                         }
6552                                 } else
6553 #endif
6554                                 {
6555                                         error = EAFNOSUPPORT;
6556                                         SCTP_TCB_UNLOCK(stcb);
6557                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6558                                         break;
6559                                 }
6560                         }
6561
6562                         if (stcb != NULL) {
6563                                 if (net != NULL) {
6564                                         net->port = encaps->sue_port;
6565                                 } else {
6566                                         stcb->asoc.port = encaps->sue_port;
6567                                 }
6568                                 SCTP_TCB_UNLOCK(stcb);
6569                         } else {
6570                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6571                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6572                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6573                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6574                                         SCTP_INP_WLOCK(inp);
6575                                         inp->sctp_ep.port = encaps->sue_port;
6576                                         SCTP_INP_WUNLOCK(inp);
6577                                 } else {
6578                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6579                                         error = EINVAL;
6580                                 }
6581                         }
6582                         break;
6583                 }
6584         case SCTP_ECN_SUPPORTED:
6585                 {
6586                         struct sctp_assoc_value *av;
6587
6588                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6589                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6590
6591                         if (stcb) {
6592                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6593                                 error = EINVAL;
6594                                 SCTP_TCB_UNLOCK(stcb);
6595                         } else {
6596                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6597                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6598                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6599                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6600                                         SCTP_INP_WLOCK(inp);
6601                                         if (av->assoc_value == 0) {
6602                                                 inp->ecn_supported = 0;
6603                                         } else {
6604                                                 inp->ecn_supported = 1;
6605                                         }
6606                                         SCTP_INP_WUNLOCK(inp);
6607                                 } else {
6608                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6609                                         error = EINVAL;
6610                                 }
6611                         }
6612                         break;
6613                 }
6614         case SCTP_PR_SUPPORTED:
6615                 {
6616                         struct sctp_assoc_value *av;
6617
6618                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6619                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6620
6621                         if (stcb) {
6622                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6623                                 error = EINVAL;
6624                                 SCTP_TCB_UNLOCK(stcb);
6625                         } else {
6626                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6627                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6628                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6629                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6630                                         SCTP_INP_WLOCK(inp);
6631                                         if (av->assoc_value == 0) {
6632                                                 inp->prsctp_supported = 0;
6633                                         } else {
6634                                                 inp->prsctp_supported = 1;
6635                                         }
6636                                         SCTP_INP_WUNLOCK(inp);
6637                                 } else {
6638                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6639                                         error = EINVAL;
6640                                 }
6641                         }
6642                         break;
6643                 }
6644         case SCTP_AUTH_SUPPORTED:
6645                 {
6646                         struct sctp_assoc_value *av;
6647
6648                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6649                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6650
6651                         if (stcb) {
6652                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6653                                 error = EINVAL;
6654                                 SCTP_TCB_UNLOCK(stcb);
6655                         } else {
6656                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6657                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6658                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6659                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6660                                         if ((av->assoc_value == 0) &&
6661                                             (inp->asconf_supported == 1)) {
6662                                                 /*
6663                                                  * AUTH is required for
6664                                                  * ASCONF
6665                                                  */
6666                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6667                                                 error = EINVAL;
6668                                         } else {
6669                                                 SCTP_INP_WLOCK(inp);
6670                                                 if (av->assoc_value == 0) {
6671                                                         inp->auth_supported = 0;
6672                                                 } else {
6673                                                         inp->auth_supported = 1;
6674                                                 }
6675                                                 SCTP_INP_WUNLOCK(inp);
6676                                         }
6677                                 } else {
6678                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6679                                         error = EINVAL;
6680                                 }
6681                         }
6682                         break;
6683                 }
6684         case SCTP_ASCONF_SUPPORTED:
6685                 {
6686                         struct sctp_assoc_value *av;
6687
6688                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6689                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6690
6691                         if (stcb) {
6692                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6693                                 error = EINVAL;
6694                                 SCTP_TCB_UNLOCK(stcb);
6695                         } else {
6696                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6697                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6698                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6699                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6700                                         if ((av->assoc_value != 0) &&
6701                                             (inp->auth_supported == 0)) {
6702                                                 /*
6703                                                  * AUTH is required for
6704                                                  * ASCONF
6705                                                  */
6706                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6707                                                 error = EINVAL;
6708                                         } else {
6709                                                 SCTP_INP_WLOCK(inp);
6710                                                 if (av->assoc_value == 0) {
6711                                                         inp->asconf_supported = 0;
6712                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6713                                                             inp->sctp_ep.local_auth_chunks);
6714                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6715                                                             inp->sctp_ep.local_auth_chunks);
6716                                                 } else {
6717                                                         inp->asconf_supported = 1;
6718                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6719                                                             inp->sctp_ep.local_auth_chunks);
6720                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6721                                                             inp->sctp_ep.local_auth_chunks);
6722                                                 }
6723                                                 SCTP_INP_WUNLOCK(inp);
6724                                         }
6725                                 } else {
6726                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6727                                         error = EINVAL;
6728                                 }
6729                         }
6730                         break;
6731                 }
6732         case SCTP_RECONFIG_SUPPORTED:
6733                 {
6734                         struct sctp_assoc_value *av;
6735
6736                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6737                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6738
6739                         if (stcb) {
6740                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6741                                 error = EINVAL;
6742                                 SCTP_TCB_UNLOCK(stcb);
6743                         } else {
6744                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6745                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6746                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6747                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6748                                         SCTP_INP_WLOCK(inp);
6749                                         if (av->assoc_value == 0) {
6750                                                 inp->reconfig_supported = 0;
6751                                         } else {
6752                                                 inp->reconfig_supported = 1;
6753                                         }
6754                                         SCTP_INP_WUNLOCK(inp);
6755                                 } else {
6756                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6757                                         error = EINVAL;
6758                                 }
6759                         }
6760                         break;
6761                 }
6762         case SCTP_NRSACK_SUPPORTED:
6763                 {
6764                         struct sctp_assoc_value *av;
6765
6766                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6767                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6768
6769                         if (stcb) {
6770                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6771                                 error = EINVAL;
6772                                 SCTP_TCB_UNLOCK(stcb);
6773                         } else {
6774                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6775                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6776                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6777                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6778                                         SCTP_INP_WLOCK(inp);
6779                                         if (av->assoc_value == 0) {
6780                                                 inp->nrsack_supported = 0;
6781                                         } else {
6782                                                 inp->nrsack_supported = 1;
6783                                         }
6784                                         SCTP_INP_WUNLOCK(inp);
6785                                 } else {
6786                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6787                                         error = EINVAL;
6788                                 }
6789                         }
6790                         break;
6791                 }
6792         case SCTP_PKTDROP_SUPPORTED:
6793                 {
6794                         struct sctp_assoc_value *av;
6795
6796                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6797                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6798
6799                         if (stcb) {
6800                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6801                                 error = EINVAL;
6802                                 SCTP_TCB_UNLOCK(stcb);
6803                         } else {
6804                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6805                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6806                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6807                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6808                                         SCTP_INP_WLOCK(inp);
6809                                         if (av->assoc_value == 0) {
6810                                                 inp->pktdrop_supported = 0;
6811                                         } else {
6812                                                 inp->pktdrop_supported = 1;
6813                                         }
6814                                         SCTP_INP_WUNLOCK(inp);
6815                                 } else {
6816                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6817                                         error = EINVAL;
6818                                 }
6819                         }
6820                         break;
6821                 }
6822         case SCTP_MAX_CWND:
6823                 {
6824                         struct sctp_assoc_value *av;
6825                         struct sctp_nets *net;
6826
6827                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6828                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6829
6830                         if (stcb) {
6831                                 stcb->asoc.max_cwnd = av->assoc_value;
6832                                 if (stcb->asoc.max_cwnd > 0) {
6833                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6834                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6835                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6836                                                         net->cwnd = stcb->asoc.max_cwnd;
6837                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6838                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6839                                                         }
6840                                                 }
6841                                         }
6842                                 }
6843                                 SCTP_TCB_UNLOCK(stcb);
6844                         } else {
6845                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6846                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6847                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6848                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6849                                         SCTP_INP_WLOCK(inp);
6850                                         inp->max_cwnd = av->assoc_value;
6851                                         SCTP_INP_WUNLOCK(inp);
6852                                 } else {
6853                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6854                                         error = EINVAL;
6855                                 }
6856                         }
6857                         break;
6858                 }
6859         default:
6860                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6861                 error = ENOPROTOOPT;
6862                 break;
6863         }                       /* end switch (opt) */
6864         return (error);
6865 }
6866
6867 int
6868 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6869 {
6870         struct epoch_tracker et;
6871         struct sctp_inpcb *inp;
6872         void *optval = NULL;
6873         void *p;
6874         size_t optsize = 0;
6875         int error = 0;
6876
6877         if ((sopt->sopt_level == SOL_SOCKET) &&
6878             (sopt->sopt_name == SO_SETFIB)) {
6879                 inp = (struct sctp_inpcb *)so->so_pcb;
6880                 if (inp == NULL) {
6881                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6882                         return (EINVAL);
6883                 }
6884                 SCTP_INP_WLOCK(inp);
6885                 inp->fibnum = so->so_fibnum;
6886                 SCTP_INP_WUNLOCK(inp);
6887                 return (0);
6888         }
6889         if (sopt->sopt_level != IPPROTO_SCTP) {
6890                 /* wrong proto level... send back up to IP */
6891 #ifdef INET6
6892                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6893                         error = ip6_ctloutput(so, sopt);
6894 #endif                          /* INET6 */
6895 #if defined(INET) && defined(INET6)
6896                 else
6897 #endif
6898 #ifdef INET
6899                         error = ip_ctloutput(so, sopt);
6900 #endif
6901                 return (error);
6902         }
6903         optsize = sopt->sopt_valsize;
6904         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6905                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6906                 return (ENOBUFS);
6907         }
6908         if (optsize) {
6909                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6910                 if (optval == NULL) {
6911                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6912                         return (ENOBUFS);
6913                 }
6914                 error = sooptcopyin(sopt, optval, optsize, optsize);
6915                 if (error) {
6916                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6917                         goto out;
6918                 }
6919         }
6920         p = (void *)sopt->sopt_td;
6921         if (sopt->sopt_dir == SOPT_SET) {
6922                 NET_EPOCH_ENTER(et);
6923                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6924                 NET_EPOCH_EXIT(et);
6925         } else if (sopt->sopt_dir == SOPT_GET) {
6926                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6927         } else {
6928                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6929                 error = EINVAL;
6930         }
6931         if ((error == 0) && (optval != NULL)) {
6932                 error = sooptcopyout(sopt, optval, optsize);
6933                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6934         } else if (optval != NULL) {
6935                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6936         }
6937 out:
6938         return (error);
6939 }
6940
6941 #ifdef INET
6942 static int
6943 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6944 {
6945         struct epoch_tracker et;
6946         int error = 0;
6947         int create_lock_on = 0;
6948         uint32_t vrf_id;
6949         struct sctp_inpcb *inp;
6950         struct sctp_tcb *stcb = NULL;
6951
6952         inp = (struct sctp_inpcb *)so->so_pcb;
6953         if (inp == NULL) {
6954                 /* I made the same as TCP since we are not setup? */
6955                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6956                 return (ECONNRESET);
6957         }
6958         if (addr == NULL) {
6959                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6960                 return EINVAL;
6961         }
6962
6963         switch (addr->sa_family) {
6964 #ifdef INET6
6965         case AF_INET6:
6966                 {
6967                         struct sockaddr_in6 *sin6;
6968
6969                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6970                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6971                                 return (EINVAL);
6972                         }
6973                         sin6 = (struct sockaddr_in6 *)addr;
6974                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
6975                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6976                                 return (error);
6977                         }
6978                         break;
6979                 }
6980 #endif
6981 #ifdef INET
6982         case AF_INET:
6983                 {
6984                         struct sockaddr_in *sin;
6985
6986                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6987                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6988                                 return (EINVAL);
6989                         }
6990                         sin = (struct sockaddr_in *)addr;
6991                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
6992                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6993                                 return (error);
6994                         }
6995                         break;
6996                 }
6997 #endif
6998         default:
6999                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
7000                 return (EAFNOSUPPORT);
7001         }
7002         SCTP_INP_INCR_REF(inp);
7003         SCTP_ASOC_CREATE_LOCK(inp);
7004         create_lock_on = 1;
7005         NET_EPOCH_ENTER(et);
7006
7007         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7008             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7009                 /* Should I really unlock ? */
7010                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7011                 error = EFAULT;
7012                 goto out_now;
7013         }
7014 #ifdef INET6
7015         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7016             (addr->sa_family == AF_INET6)) {
7017                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7018                 error = EINVAL;
7019                 goto out_now;
7020         }
7021 #endif
7022         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
7023             SCTP_PCB_FLAGS_UNBOUND) {
7024                 /* Bind a ephemeral port */
7025                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7026                 if (error) {
7027                         goto out_now;
7028                 }
7029         }
7030         /* Now do we connect? */
7031         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7032             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7033                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7034                 error = EINVAL;
7035                 goto out_now;
7036         }
7037         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7038             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7039                 /* We are already connected AND the TCP model */
7040                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7041                 error = EADDRINUSE;
7042                 goto out_now;
7043         }
7044         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7045                 SCTP_INP_RLOCK(inp);
7046                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7047                 SCTP_INP_RUNLOCK(inp);
7048         } else {
7049                 /*
7050                  * We increment here since sctp_findassociation_ep_addr()
7051                  * will do a decrement if it finds the stcb as long as the
7052                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7053                  */
7054                 SCTP_INP_INCR_REF(inp);
7055                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7056                 if (stcb == NULL) {
7057                         SCTP_INP_DECR_REF(inp);
7058                 } else {
7059                         SCTP_TCB_UNLOCK(stcb);
7060                 }
7061         }
7062         if (stcb != NULL) {
7063                 /* Already have or am bring up an association */
7064                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7065                 error = EALREADY;
7066                 goto out_now;
7067         }
7068
7069         vrf_id = inp->def_vrf_id;
7070         /* We are GOOD to go */
7071         stcb = sctp_aloc_assoc_connected(inp, addr, &error, 0, 0, vrf_id,
7072             inp->sctp_ep.pre_open_stream_count,
7073             inp->sctp_ep.port, p,
7074             SCTP_INITIALIZE_AUTH_PARAMS);
7075         if (stcb == NULL) {
7076                 /* Gak! no memory */
7077                 goto out_now;
7078         }
7079         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7080         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7081
7082         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7083         SCTP_TCB_UNLOCK(stcb);
7084 out_now:
7085         NET_EPOCH_EXIT(et);
7086         if (create_lock_on) {
7087                 SCTP_ASOC_CREATE_UNLOCK(inp);
7088         }
7089         SCTP_INP_DECR_REF(inp);
7090         return (error);
7091 }
7092 #endif
7093
7094 int
7095 sctp_listen(struct socket *so, int backlog, struct thread *p)
7096 {
7097         /*
7098          * Note this module depends on the protocol processing being called
7099          * AFTER any socket level flags and backlog are applied to the
7100          * socket. The traditional way that the socket flags are applied is
7101          * AFTER protocol processing. We have made a change to the
7102          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7103          * place if the socket API for SCTP is to work properly.
7104          */
7105
7106         int error = 0;
7107         struct sctp_inpcb *inp;
7108
7109         inp = (struct sctp_inpcb *)so->so_pcb;
7110         if (inp == NULL) {
7111                 /* I made the same as TCP since we are not setup? */
7112                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7113                 return (ECONNRESET);
7114         }
7115         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7116                 /* See if we have a listener */
7117                 struct sctp_inpcb *tinp;
7118                 union sctp_sockstore store;
7119
7120                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7121                         /* not bound all */
7122                         struct sctp_laddr *laddr;
7123
7124                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7125                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7126                                 switch (store.sa.sa_family) {
7127 #ifdef INET
7128                                 case AF_INET:
7129                                         store.sin.sin_port = inp->sctp_lport;
7130                                         break;
7131 #endif
7132 #ifdef INET6
7133                                 case AF_INET6:
7134                                         store.sin6.sin6_port = inp->sctp_lport;
7135                                         break;
7136 #endif
7137                                 default:
7138                                         break;
7139                                 }
7140                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7141                                 if (tinp && (tinp != inp) &&
7142                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7143                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7144                                     (SCTP_IS_LISTENING(tinp))) {
7145                                         /*
7146                                          * we have a listener already and
7147                                          * its not this inp.
7148                                          */
7149                                         SCTP_INP_DECR_REF(tinp);
7150                                         return (EADDRINUSE);
7151                                 } else if (tinp) {
7152                                         SCTP_INP_DECR_REF(tinp);
7153                                 }
7154                         }
7155                 } else {
7156                         /* Setup a local addr bound all */
7157                         memset(&store, 0, sizeof(store));
7158 #ifdef INET6
7159                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7160                                 store.sa.sa_family = AF_INET6;
7161                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7162                         }
7163 #endif
7164 #ifdef INET
7165                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7166                                 store.sa.sa_family = AF_INET;
7167                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7168                         }
7169 #endif
7170                         switch (store.sa.sa_family) {
7171 #ifdef INET
7172                         case AF_INET:
7173                                 store.sin.sin_port = inp->sctp_lport;
7174                                 break;
7175 #endif
7176 #ifdef INET6
7177                         case AF_INET6:
7178                                 store.sin6.sin6_port = inp->sctp_lport;
7179                                 break;
7180 #endif
7181                         default:
7182                                 break;
7183                         }
7184                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7185                         if (tinp && (tinp != inp) &&
7186                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7187                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7188                             (SCTP_IS_LISTENING(tinp))) {
7189                                 /*
7190                                  * we have a listener already and its not
7191                                  * this inp.
7192                                  */
7193                                 SCTP_INP_DECR_REF(tinp);
7194                                 return (EADDRINUSE);
7195                         } else if (tinp) {
7196                                 SCTP_INP_DECR_REF(tinp);
7197                         }
7198                 }
7199         }
7200         SCTP_INP_RLOCK(inp);
7201 #ifdef SCTP_LOCK_LOGGING
7202         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7203                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7204         }
7205 #endif
7206         SOCK_LOCK(so);
7207         error = solisten_proto_check(so);
7208         SOCK_UNLOCK(so);
7209         if (error) {
7210                 SCTP_INP_RUNLOCK(inp);
7211                 return (error);
7212         }
7213         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7214             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7215                 /*
7216                  * The unlucky case - We are in the tcp pool with this guy.
7217                  * - Someone else is in the main inp slot. - We must move
7218                  * this guy (the listener) to the main slot - We must then
7219                  * move the guy that was listener to the TCP Pool.
7220                  */
7221                 if (sctp_swap_inpcb_for_listen(inp)) {
7222                         SCTP_INP_RUNLOCK(inp);
7223                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7224                         return (EADDRINUSE);
7225                 }
7226         }
7227
7228         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7229             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7230                 /* We are already connected AND the TCP model */
7231                 SCTP_INP_RUNLOCK(inp);
7232                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7233                 return (EADDRINUSE);
7234         }
7235         SCTP_INP_RUNLOCK(inp);
7236         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7237                 /* We must do a bind. */
7238                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7239                         /* bind error, probably perm */
7240                         return (error);
7241                 }
7242         }
7243         SCTP_INP_WLOCK(inp);
7244         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7245                 SOCK_LOCK(so);
7246                 solisten_proto(so, backlog);
7247                 SOCK_UNLOCK(so);
7248         }
7249         if (backlog > 0) {
7250                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7251         } else {
7252                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7253         }
7254         SCTP_INP_WUNLOCK(inp);
7255         return (error);
7256 }
7257
7258 static int sctp_defered_wakeup_cnt = 0;
7259
7260 int
7261 sctp_accept(struct socket *so, struct sockaddr **addr)
7262 {
7263         struct sctp_tcb *stcb;
7264         struct sctp_inpcb *inp;
7265         union sctp_sockstore store;
7266 #ifdef INET6
7267         int error;
7268 #endif
7269         inp = (struct sctp_inpcb *)so->so_pcb;
7270
7271         if (inp == NULL) {
7272                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7273                 return (ECONNRESET);
7274         }
7275         SCTP_INP_WLOCK(inp);
7276         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7277                 SCTP_INP_WUNLOCK(inp);
7278                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7279                 return (EOPNOTSUPP);
7280         }
7281         if (so->so_state & SS_ISDISCONNECTED) {
7282                 SCTP_INP_WUNLOCK(inp);
7283                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7284                 return (ECONNABORTED);
7285         }
7286         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7287         if (stcb == NULL) {
7288                 SCTP_INP_WUNLOCK(inp);
7289                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7290                 return (ECONNRESET);
7291         }
7292         SCTP_TCB_LOCK(stcb);
7293         store = stcb->asoc.primary_destination->ro._l_addr;
7294         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7295         /* Wake any delayed sleep action */
7296         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7297                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7298                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7299                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7300                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7301                         if (sowriteable(inp->sctp_socket)) {
7302                                 sowwakeup_locked(inp->sctp_socket);
7303                         } else {
7304                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7305                         }
7306                 }
7307                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7308                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7309                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7310                         if (soreadable(inp->sctp_socket)) {
7311                                 sctp_defered_wakeup_cnt++;
7312                                 sorwakeup_locked(inp->sctp_socket);
7313                         } else {
7314                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7315                         }
7316                 }
7317         }
7318         SCTP_INP_WUNLOCK(inp);
7319         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7320                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7321                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7322         } else {
7323                 SCTP_TCB_UNLOCK(stcb);
7324         }
7325         switch (store.sa.sa_family) {
7326 #ifdef INET
7327         case AF_INET:
7328                 {
7329                         struct sockaddr_in *sin;
7330
7331                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7332                         if (sin == NULL)
7333                                 return (ENOMEM);
7334                         sin->sin_family = AF_INET;
7335                         sin->sin_len = sizeof(*sin);
7336                         sin->sin_port = store.sin.sin_port;
7337                         sin->sin_addr = store.sin.sin_addr;
7338                         *addr = (struct sockaddr *)sin;
7339                         break;
7340                 }
7341 #endif
7342 #ifdef INET6
7343         case AF_INET6:
7344                 {
7345                         struct sockaddr_in6 *sin6;
7346
7347                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7348                         if (sin6 == NULL)
7349                                 return (ENOMEM);
7350                         sin6->sin6_family = AF_INET6;
7351                         sin6->sin6_len = sizeof(*sin6);
7352                         sin6->sin6_port = store.sin6.sin6_port;
7353                         sin6->sin6_addr = store.sin6.sin6_addr;
7354                         if ((error = sa6_recoverscope(sin6)) != 0) {
7355                                 SCTP_FREE_SONAME(sin6);
7356                                 return (error);
7357                         }
7358                         *addr = (struct sockaddr *)sin6;
7359                         break;
7360                 }
7361 #endif
7362         default:
7363                 /* TSNH */
7364                 break;
7365         }
7366         return (0);
7367 }
7368
7369 #ifdef INET
7370 int
7371 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7372 {
7373         struct sockaddr_in *sin;
7374         uint32_t vrf_id;
7375         struct sctp_inpcb *inp;
7376         struct sctp_ifa *sctp_ifa;
7377
7378         /*
7379          * Do the malloc first in case it blocks.
7380          */
7381         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7382         if (sin == NULL)
7383                 return (ENOMEM);
7384         sin->sin_family = AF_INET;
7385         sin->sin_len = sizeof(*sin);
7386         inp = (struct sctp_inpcb *)so->so_pcb;
7387         if (!inp) {
7388                 SCTP_FREE_SONAME(sin);
7389                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7390                 return (ECONNRESET);
7391         }
7392         SCTP_INP_RLOCK(inp);
7393         sin->sin_port = inp->sctp_lport;
7394         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7395                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7396                         struct sctp_tcb *stcb;
7397                         struct sockaddr_in *sin_a;
7398                         struct sctp_nets *net;
7399                         int fnd;
7400
7401                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7402                         if (stcb == NULL) {
7403                                 goto notConn;
7404                         }
7405                         fnd = 0;
7406                         sin_a = NULL;
7407                         SCTP_TCB_LOCK(stcb);
7408                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7409                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7410                                 if (sin_a == NULL)
7411                                         /* this will make coverity happy */
7412                                         continue;
7413
7414                                 if (sin_a->sin_family == AF_INET) {
7415                                         fnd = 1;
7416                                         break;
7417                                 }
7418                         }
7419                         if ((!fnd) || (sin_a == NULL)) {
7420                                 /* punt */
7421                                 SCTP_TCB_UNLOCK(stcb);
7422                                 goto notConn;
7423                         }
7424
7425                         vrf_id = inp->def_vrf_id;
7426                         sctp_ifa = sctp_source_address_selection(inp,
7427                             stcb,
7428                             (sctp_route_t *)&net->ro,
7429                             net, 0, vrf_id);
7430                         if (sctp_ifa) {
7431                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7432                                 sctp_free_ifa(sctp_ifa);
7433                         }
7434                         SCTP_TCB_UNLOCK(stcb);
7435                 } else {
7436                         /* For the bound all case you get back 0 */
7437         notConn:
7438                         sin->sin_addr.s_addr = 0;
7439                 }
7440
7441         } else {
7442                 /* Take the first IPv4 address in the list */
7443                 struct sctp_laddr *laddr;
7444                 int fnd = 0;
7445
7446                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7447                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7448                                 struct sockaddr_in *sin_a;
7449
7450                                 sin_a = &laddr->ifa->address.sin;
7451                                 sin->sin_addr = sin_a->sin_addr;
7452                                 fnd = 1;
7453                                 break;
7454                         }
7455                 }
7456                 if (!fnd) {
7457                         SCTP_FREE_SONAME(sin);
7458                         SCTP_INP_RUNLOCK(inp);
7459                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7460                         return (ENOENT);
7461                 }
7462         }
7463         SCTP_INP_RUNLOCK(inp);
7464         (*addr) = (struct sockaddr *)sin;
7465         return (0);
7466 }
7467
7468 int
7469 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7470 {
7471         struct sockaddr_in *sin;
7472         int fnd;
7473         struct sockaddr_in *sin_a;
7474         struct sctp_inpcb *inp;
7475         struct sctp_tcb *stcb;
7476         struct sctp_nets *net;
7477
7478         /* Do the malloc first in case it blocks. */
7479         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7480         if (sin == NULL)
7481                 return (ENOMEM);
7482         sin->sin_family = AF_INET;
7483         sin->sin_len = sizeof(*sin);
7484
7485         inp = (struct sctp_inpcb *)so->so_pcb;
7486         if ((inp == NULL) ||
7487             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7488                 /* UDP type and listeners will drop out here */
7489                 SCTP_FREE_SONAME(sin);
7490                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7491                 return (ENOTCONN);
7492         }
7493         SCTP_INP_RLOCK(inp);
7494         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7495         if (stcb) {
7496                 SCTP_TCB_LOCK(stcb);
7497         }
7498         SCTP_INP_RUNLOCK(inp);
7499         if (stcb == NULL) {
7500                 SCTP_FREE_SONAME(sin);
7501                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7502                 return (ECONNRESET);
7503         }
7504         fnd = 0;
7505         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7506                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7507                 if (sin_a->sin_family == AF_INET) {
7508                         fnd = 1;
7509                         sin->sin_port = stcb->rport;
7510                         sin->sin_addr = sin_a->sin_addr;
7511                         break;
7512                 }
7513         }
7514         SCTP_TCB_UNLOCK(stcb);
7515         if (!fnd) {
7516                 /* No IPv4 address */
7517                 SCTP_FREE_SONAME(sin);
7518                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7519                 return (ENOENT);
7520         }
7521         (*addr) = (struct sockaddr *)sin;
7522         return (0);
7523 }
7524
7525 struct pr_usrreqs sctp_usrreqs = {
7526         .pru_abort = sctp_abort,
7527         .pru_accept = sctp_accept,
7528         .pru_attach = sctp_attach,
7529         .pru_bind = sctp_bind,
7530         .pru_connect = sctp_connect,
7531         .pru_control = in_control,
7532         .pru_close = sctp_close,
7533         .pru_detach = sctp_close,
7534         .pru_sopoll = sopoll_generic,
7535         .pru_flush = sctp_flush,
7536         .pru_disconnect = sctp_disconnect,
7537         .pru_listen = sctp_listen,
7538         .pru_peeraddr = sctp_peeraddr,
7539         .pru_send = sctp_sendm,
7540         .pru_shutdown = sctp_shutdown,
7541         .pru_sockaddr = sctp_ingetaddr,
7542         .pru_sosend = sctp_sosend,
7543         .pru_soreceive = sctp_soreceive
7544 };
7545 #endif