sys/netinet/sctp_usrreq.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-3-Clause
   3  *
   4  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   5  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   6  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * a) Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  *
  14  * b) Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the distribution.
  17  *
  18  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  24  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  32  * THE POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37
  38 #include <netinet/sctp_os.h>
  39 #include <sys/proc.h>
  40 #include <netinet/sctp_pcb.h>
  41 #include <netinet/sctp_header.h>
  42 #include <netinet/sctp_var.h>
  43 #ifdef INET6
  44 #include <netinet6/sctp6_var.h>
  45 #endif
  46 #include <netinet/sctp_sysctl.h>
  47 #include <netinet/sctp_output.h>
  48 #include <netinet/sctp_uio.h>
  49 #include <netinet/sctp_asconf.h>
  50 #include <netinet/sctputil.h>
  51 #include <netinet/sctp_indata.h>
  52 #include <netinet/sctp_timer.h>
  53 #include <netinet/sctp_auth.h>
  54 #include <netinet/sctp_bsd_addr.h>
  55 #include <netinet/udp.h>
  56 #include <sys/eventhandler.h>
  57
  58 extern const struct sctp_cc_functions sctp_cc_functions[];
  59 extern const struct sctp_ss_functions sctp_ss_functions[];
  60
  61 void
  62 sctp_init(void)
  63 {
  64         u_long sb_max_adj;
  65
  66         /* Initialize and modify the sysctled variables */
  67         sctp_init_sysctls();
  68         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  69                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  70         /*
  71          * Allow a user to take no more than 1/2 the number of clusters or
  72          * the SB_MAX, whichever is smaller, for the send window.
  73          */
  74         sb_max_adj = (u_long)((u_quad_t)(SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  75         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  76             (((uint32_t)nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  77         /*
  78          * Now for the recv window, should we take the same amount? or
  79          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  80          * now I will just copy.
  81          */
  82         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  83         SCTP_BASE_VAR(first_time) = 0;
  84         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  85         sctp_pcb_init();
  86 #if defined(SCTP_PACKET_LOGGING)
  87         SCTP_BASE_VAR(packet_log_writers) = 0;
  88         SCTP_BASE_VAR(packet_log_end) = 0;
  89         memset(&SCTP_BASE_VAR(packet_log_buffer), 0, SCTP_PACKET_LOG_SIZE);
  90 #endif
  91         SCTP_BASE_VAR(eh_tag) = EVENTHANDLER_REGISTER(rt_addrmsg,
  92             sctp_addr_change_event_handler, NULL, EVENTHANDLER_PRI_FIRST);
  93 }
  94
  95 #ifdef VIMAGE
  96 static void
  97 sctp_finish(void *unused __unused)
  98 {
  99         EVENTHANDLER_DEREGISTER(rt_addrmsg, SCTP_BASE_VAR(eh_tag));
 100         sctp_pcb_finish();
 101 }
 102
 103 VNET_SYSUNINIT(sctp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, sctp_finish, NULL);
 104 #endif
 105
 106 void
 107 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 108 {
 109         struct sctp_tmit_chunk *chk;
 110         uint16_t overhead;
 111
 112         /* Adjust that too */
 113         stcb->asoc.smallest_mtu = nxtsz;
 114         /* now off to subtract IP_DF flag if needed */
 115         overhead = IP_HDR_SIZE + sizeof(struct sctphdr);
 116         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 117                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 118         }
 119         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 120                 if ((chk->send_size + overhead) > nxtsz) {
 121                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 122                 }
 123         }
 124         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 125                 if ((chk->send_size + overhead) > nxtsz) {
 126                         /*
 127                          * For this guy we also mark for immediate resend
 128                          * since we sent to big of chunk
 129                          */
 130                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 131                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 132                                 sctp_flight_size_decrease(chk);
 133                                 sctp_total_flight_decrease(stcb, chk);
 134                                 chk->sent = SCTP_DATAGRAM_RESEND;
 135                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 136                                 chk->rec.data.doing_fast_retransmit = 0;
 137                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 138                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 139                                             chk->whoTo->flight_size,
 140                                             chk->book_size,
 141                                             (uint32_t)(uintptr_t)chk->whoTo,
 142                                             chk->rec.data.tsn);
 143                                 }
 144                                 /* Clear any time so NO RTT is being done */
 145                                 if (chk->do_rtt == 1) {
 146                                         chk->do_rtt = 0;
 147                                         chk->whoTo->rto_needed = 1;
 148                                 }
 149                         }
 150                 }
 151         }
 152 }
 153
 154 #ifdef INET
 155 void
 156 sctp_notify(struct sctp_inpcb *inp,
 157     struct sctp_tcb *stcb,
 158     struct sctp_nets *net,
 159     uint8_t icmp_type,
 160     uint8_t icmp_code,
 161     uint16_t ip_len,
 162     uint32_t next_mtu)
 163 {
 164         int timer_stopped;
 165
 166         if (icmp_type != ICMP_UNREACH) {
 167                 /* We only care about unreachable */
 168                 SCTP_TCB_UNLOCK(stcb);
 169                 return;
 170         }
 171         if ((icmp_code == ICMP_UNREACH_NET) ||
 172             (icmp_code == ICMP_UNREACH_HOST) ||
 173             (icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 174             (icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 175             (icmp_code == ICMP_UNREACH_ISOLATED) ||
 176             (icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 177             (icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 178             (icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 179                 /* Mark the net unreachable. */
 180                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 181                         /* OK, that destination is NOT reachable. */
 182                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 183                         net->dest_state &= ~SCTP_ADDR_PF;
 184                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 185                             stcb, 0,
 186                             (void *)net, SCTP_SO_NOT_LOCKED);
 187                 }
 188                 SCTP_TCB_UNLOCK(stcb);
 189         } else if ((icmp_code == ICMP_UNREACH_PROTOCOL) ||
 190             (icmp_code == ICMP_UNREACH_PORT)) {
 191                 /* Treat it like an ABORT. */
 192                 sctp_abort_notification(stcb, true, false, 0, NULL, SCTP_SO_NOT_LOCKED);
 193                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 194                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 195                 /* no need to unlock here, since the TCB is gone */
 196         } else if (icmp_code == ICMP_UNREACH_NEEDFRAG) {
 197                 if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
 198                         SCTP_TCB_UNLOCK(stcb);
 199                         return;
 200                 }
 201                 /* Find the next (smaller) MTU */
 202                 if (next_mtu == 0) {
 203                         /*
 204                          * Old type router that does not tell us what the
 205                          * next MTU is. Rats we will have to guess (in a
 206                          * educated fashion of course).
 207                          */
 208                         next_mtu = sctp_get_prev_mtu(ip_len);
 209                 }
 210                 /* Stop the PMTU timer. */
 211                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 212                         timer_stopped = 1;
 213                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 214                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 215                 } else {
 216                         timer_stopped = 0;
 217                 }
 218                 /* Update the path MTU. */
 219                 if (net->port) {
 220                         next_mtu -= sizeof(struct udphdr);
 221                 }
 222                 if (net->mtu > next_mtu) {
 223                         net->mtu = next_mtu;
 224                         if (net->port) {
 225                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu + sizeof(struct udphdr));
 226                         } else {
 227                                 sctp_hc_set_mtu(&net->ro._l_addr, inp->fibnum, next_mtu);
 228                         }
 229                 }
 230                 /* Update the association MTU */
 231                 if (stcb->asoc.smallest_mtu > next_mtu) {
 232                         sctp_pathmtu_adjustment(stcb, next_mtu);
 233                 }
 234                 /* Finally, start the PMTU timer if it was running before. */
 235                 if (timer_stopped) {
 236                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 237                 }
 238                 SCTP_TCB_UNLOCK(stcb);
 239         } else {
 240                 SCTP_TCB_UNLOCK(stcb);
 241         }
 242 }
 243
 244 void
 245 sctp_ctlinput(int cmd, struct sockaddr *sa, void *vip)
 246 {
 247         struct ip *outer_ip;
 248         struct ip *inner_ip;
 249         struct sctphdr *sh;
 250         struct icmp *icmp;
 251         struct sctp_inpcb *inp;
 252         struct sctp_tcb *stcb;
 253         struct sctp_nets *net;
 254         struct sctp_init_chunk *ch;
 255         struct sockaddr_in src, dst;
 256
 257         if (sa->sa_family != AF_INET ||
 258             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 259                 return;
 260         }
 261         if (PRC_IS_REDIRECT(cmd)) {
 262                 vip = NULL;
 263         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 264                 return;
 265         }
 266         if (vip != NULL) {
 267                 inner_ip = (struct ip *)vip;
 268                 icmp = (struct icmp *)((caddr_t)inner_ip -
 269                     (sizeof(struct icmp) - sizeof(struct ip)));
 270                 outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip));
 271                 sh = (struct sctphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2));
 272                 memset(&src, 0, sizeof(struct sockaddr_in));
 273                 src.sin_family = AF_INET;
 274                 src.sin_len = sizeof(struct sockaddr_in);
 275                 src.sin_port = sh->src_port;
 276                 src.sin_addr = inner_ip->ip_src;
 277                 memset(&dst, 0, sizeof(struct sockaddr_in));
 278                 dst.sin_family = AF_INET;
 279                 dst.sin_len = sizeof(struct sockaddr_in);
 280                 dst.sin_port = sh->dest_port;
 281                 dst.sin_addr = inner_ip->ip_dst;
 282                 /*
 283                  * 'dst' holds the dest of the packet that failed to be
 284                  * sent. 'src' holds our local endpoint address. Thus we
 285                  * reverse the dst and the src in the lookup.
 286                  */
 287                 inp = NULL;
 288                 net = NULL;
 289                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst,
 290                     (struct sockaddr *)&src,
 291                     &inp, &net, 1,
 292                     SCTP_DEFAULT_VRFID);
 293                 if ((stcb != NULL) &&
 294                     (net != NULL) &&
 295                     (inp != NULL)) {
 296                         /* Check the verification tag */
 297                         if (ntohl(sh->v_tag) != 0) {
 298                                 /*
 299                                  * This must be the verification tag used
 300                                  * for sending out packets. We don't
 301                                  * consider packets reflecting the
 302                                  * verification tag.
 303                                  */
 304                                 if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) {
 305                                         SCTP_TCB_UNLOCK(stcb);
 306                                         return;
 307                                 }
 308                         } else {
 309                                 if (ntohs(outer_ip->ip_len) >=
 310                                     sizeof(struct ip) +
 311                                     8 + (inner_ip->ip_hl << 2) + 20) {
 312                                         /*
 313                                          * In this case we can check if we
 314                                          * got an INIT chunk and if the
 315                                          * initiate tag matches.
 316                                          */
 317                                         ch = (struct sctp_init_chunk *)(sh + 1);
 318                                         if ((ch->ch.chunk_type != SCTP_INITIATION) ||
 319                                             (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) {
 320                                                 SCTP_TCB_UNLOCK(stcb);
 321                                                 return;
 322                                         }
 323                                 } else {
 324                                         SCTP_TCB_UNLOCK(stcb);
 325                                         return;
 326                                 }
 327                         }
 328                         sctp_notify(inp, stcb, net,
 329                             icmp->icmp_type,
 330                             icmp->icmp_code,
 331                             ntohs(inner_ip->ip_len),
 332                             (uint32_t)ntohs(icmp->icmp_nextmtu));
 333                 } else {
 334                         if ((stcb == NULL) && (inp != NULL)) {
 335                                 /* reduce ref-count */
 336                                 SCTP_INP_WLOCK(inp);
 337                                 SCTP_INP_DECR_REF(inp);
 338                                 SCTP_INP_WUNLOCK(inp);
 339                         }
 340                         if (stcb) {
 341                                 SCTP_TCB_UNLOCK(stcb);
 342                         }
 343                 }
 344         }
 345         return;
 346 }
 347 #endif
 348
 349 static int
 350 sctp_getcred(SYSCTL_HANDLER_ARGS)
 351 {
 352         struct xucred xuc;
 353         struct sockaddr_in addrs[2];
 354         struct sctp_inpcb *inp;
 355         struct sctp_nets *net;
 356         struct sctp_tcb *stcb;
 357         int error;
 358         uint32_t vrf_id;
 359
 360         /* FIX, for non-bsd is this right? */
 361         vrf_id = SCTP_DEFAULT_VRFID;
 362
 363         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 364
 365         if (error)
 366                 return (error);
 367
 368         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 369         if (error)
 370                 return (error);
 371
 372         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 373             sintosa(&addrs[0]),
 374             &inp, &net, 1, vrf_id);
 375         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 376                 if ((inp != NULL) && (stcb == NULL)) {
 377                         /* reduce ref-count */
 378                         SCTP_INP_WLOCK(inp);
 379                         SCTP_INP_DECR_REF(inp);
 380                         goto cred_can_cont;
 381                 }
 382
 383                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 384                 error = ENOENT;
 385                 goto out;
 386         }
 387         SCTP_TCB_UNLOCK(stcb);
 388         /*
 389          * We use the write lock here, only since in the error leg we need
 390          * it. If we used RLOCK, then we would have to
 391          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 392          * Better to use higher wlock.
 393          */
 394         SCTP_INP_WLOCK(inp);
 395 cred_can_cont:
 396         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 397         if (error) {
 398                 SCTP_INP_WUNLOCK(inp);
 399                 goto out;
 400         }
 401         cru2x(inp->sctp_socket->so_cred, &xuc);
 402         SCTP_INP_WUNLOCK(inp);
 403         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 404 out:
 405         return (error);
 406 }
 407
 408 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred,
 409     CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
 410     0, 0, sctp_getcred, "S,ucred",
 411     "Get the ucred of a SCTP connection");
 412
 413 #ifdef INET
 414 static void
 415 sctp_abort(struct socket *so)
 416 {
 417         struct epoch_tracker et;
 418         struct sctp_inpcb *inp;
 419
 420         inp = (struct sctp_inpcb *)so->so_pcb;
 421         if (inp == NULL) {
 422                 return;
 423         }
 424
 425         SCTP_INP_WLOCK(inp);
 426         NET_EPOCH_ENTER(et);
 427 #ifdef SCTP_LOG_CLOSING
 428         sctp_log_closing(inp, NULL, 17);
 429 #endif
 430         if (((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0)) {
 431                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 432 #ifdef SCTP_LOG_CLOSING
 433                 sctp_log_closing(inp, NULL, 16);
 434 #endif
 435                 SCTP_INP_WUNLOCK(inp);
 436                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 437                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 438                 SOCK_LOCK(so);
 439                 SCTP_SB_CLEAR(so->so_snd);
 440                 /*
 441                  * same for the rcv ones, they are only here for the
 442                  * accounting/select.
 443                  */
 444                 SCTP_SB_CLEAR(so->so_rcv);
 445
 446                 /* Now null out the reference, we are completely detached. */
 447                 so->so_pcb = NULL;
 448                 SOCK_UNLOCK(so);
 449         } else {
 450                 SCTP_INP_WUNLOCK(inp);
 451         }
 452         NET_EPOCH_EXIT(et);
 453 }
 454
 455 static int
 456 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 457 {
 458         struct sctp_inpcb *inp;
 459         struct inpcb *ip_inp;
 460         int error;
 461         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 462
 463         inp = (struct sctp_inpcb *)so->so_pcb;
 464         if (inp != NULL) {
 465                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 466                 return (EINVAL);
 467         }
 468         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 469                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 470                 if (error) {
 471                         return (error);
 472                 }
 473         }
 474         error = sctp_inpcb_alloc(so, vrf_id);
 475         if (error) {
 476                 return (error);
 477         }
 478         inp = (struct sctp_inpcb *)so->so_pcb;
 479         SCTP_INP_WLOCK(inp);
 480         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 481         ip_inp = &inp->ip_inp.inp;
 482         ip_inp->inp_vflag |= INP_IPV4;
 483         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 484         SCTP_INP_WUNLOCK(inp);
 485         return (0);
 486 }
 487
 488 static int
 489 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 490 {
 491         struct sctp_inpcb *inp;
 492
 493         inp = (struct sctp_inpcb *)so->so_pcb;
 494         if (inp == NULL) {
 495                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 496                 return (EINVAL);
 497         }
 498         if (addr != NULL) {
 499                 if ((addr->sa_family != AF_INET) ||
 500                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 501                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 502                         return (EINVAL);
 503                 }
 504         }
 505         return (sctp_inpcb_bind(so, addr, NULL, p));
 506 }
 507
 508 #endif
 509 void
 510 sctp_close(struct socket *so)
 511 {
 512         struct epoch_tracker et;
 513         struct sctp_inpcb *inp;
 514
 515         inp = (struct sctp_inpcb *)so->so_pcb;
 516         if (inp == NULL)
 517                 return;
 518
 519         /*
 520          * Inform all the lower layer assoc that we are done.
 521          */
 522         SCTP_INP_WLOCK(inp);
 523         NET_EPOCH_ENTER(et);
 524 #ifdef SCTP_LOG_CLOSING
 525         sctp_log_closing(inp, NULL, 17);
 526 #endif
 527         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 528                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP;
 529                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 530                     (so->so_rcv.sb_cc > 0)) {
 531 #ifdef SCTP_LOG_CLOSING
 532                         sctp_log_closing(inp, NULL, 13);
 533 #endif
 534                         SCTP_INP_WUNLOCK(inp);
 535                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 536                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 537                 } else {
 538 #ifdef SCTP_LOG_CLOSING
 539                         sctp_log_closing(inp, NULL, 14);
 540 #endif
 541                         SCTP_INP_WUNLOCK(inp);
 542                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 543                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 544                 }
 545                 /*
 546                  * The socket is now detached, no matter what the state of
 547                  * the SCTP association.
 548                  */
 549                 SOCK_LOCK(so);
 550                 SCTP_SB_CLEAR(so->so_snd);
 551                 /*
 552                  * same for the rcv ones, they are only here for the
 553                  * accounting/select.
 554                  */
 555                 SCTP_SB_CLEAR(so->so_rcv);
 556
 557                 /* Now null out the reference, we are completely detached. */
 558                 so->so_pcb = NULL;
 559                 SOCK_UNLOCK(so);
 560         } else {
 561                 SCTP_INP_WUNLOCK(inp);
 562         }
 563         NET_EPOCH_EXIT(et);
 564 }
 565
 566 int
 567 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 568     struct mbuf *control, struct thread *p);
 569
 570 int
 571 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 572     struct mbuf *control, struct thread *p)
 573 {
 574         struct sctp_inpcb *inp;
 575         int error;
 576
 577         inp = (struct sctp_inpcb *)so->so_pcb;
 578         if (inp == NULL) {
 579                 if (control) {
 580                         sctp_m_freem(control);
 581                         control = NULL;
 582                 }
 583                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 584                 sctp_m_freem(m);
 585                 return (EINVAL);
 586         }
 587         /* Got to have an to address if we are NOT a connected socket */
 588         if ((addr == NULL) &&
 589             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 590             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 591                 goto connected_type;
 592         }
 593
 594         error = 0;
 595         if (addr == NULL) {
 596                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 597                 error = EDESTADDRREQ;
 598         } else if (addr->sa_family != AF_INET) {
 599                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
 600                 error = EAFNOSUPPORT;
 601         } else if (addr->sa_len != sizeof(struct sockaddr_in)) {
 602                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 603                 error = EINVAL;
 604         }
 605         if (error != 0) {
 606                 sctp_m_freem(m);
 607                 if (control) {
 608                         sctp_m_freem(control);
 609                         control = NULL;
 610                 }
 611                 return (error);
 612         }
 613 connected_type:
 614         /* now what about control */
 615         if (control) {
 616                 if (inp->control) {
 617                         sctp_m_freem(inp->control);
 618                         inp->control = NULL;
 619                 }
 620                 inp->control = control;
 621         }
 622         /* Place the data */
 623         if (inp->pkt) {
 624                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 625                 inp->pkt_last = m;
 626         } else {
 627                 inp->pkt_last = inp->pkt = m;
 628         }
 629         if (
 630         /* FreeBSD uses a flag passed */
 631             ((flags & PRUS_MORETOCOME) == 0)
 632             ) {
 633                 /*
 634                  * note with the current version this code will only be used
 635                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 636                  * re-defining sosend to use the sctp_sosend. One can
 637                  * optionally switch back to this code (by changing back the
 638                  * definitions) but this is not advisable. This code is used
 639                  * by FreeBSD when sending a file with sendfile() though.
 640                  */
 641                 struct epoch_tracker et;
 642                 int ret;
 643
 644                 NET_EPOCH_ENTER(et);
 645                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 646                 NET_EPOCH_EXIT(et);
 647                 inp->pkt = NULL;
 648                 inp->control = NULL;
 649                 return (ret);
 650         } else {
 651                 return (0);
 652         }
 653 }
 654
 655 int
 656 sctp_disconnect(struct socket *so)
 657 {
 658         struct sctp_inpcb *inp;
 659
 660         inp = (struct sctp_inpcb *)so->so_pcb;
 661         if (inp == NULL) {
 662                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 663                 return (ENOTCONN);
 664         }
 665         SCTP_INP_RLOCK(inp);
 666         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 667             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 668                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 669                         /* No connection */
 670                         SCTP_INP_RUNLOCK(inp);
 671                         return (0);
 672                 } else {
 673                         struct epoch_tracker et;
 674                         struct sctp_association *asoc;
 675                         struct sctp_tcb *stcb;
 676
 677                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 678                         if (stcb == NULL) {
 679                                 SCTP_INP_RUNLOCK(inp);
 680                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 681                                 return (EINVAL);
 682                         }
 683                         SCTP_TCB_LOCK(stcb);
 684                         asoc = &stcb->asoc;
 685                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 686                                 /* We are about to be freed, out of here */
 687                                 SCTP_TCB_UNLOCK(stcb);
 688                                 SCTP_INP_RUNLOCK(inp);
 689                                 return (0);
 690                         }
 691                         NET_EPOCH_ENTER(et);
 692                         if (((so->so_options & SO_LINGER) &&
 693                             (so->so_linger == 0)) ||
 694                             (so->so_rcv.sb_cc > 0)) {
 695                                 if (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) {
 696                                         /* Left with Data unread */
 697                                         struct mbuf *op_err;
 698
 699                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 700                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 701                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 702                                 }
 703                                 SCTP_INP_RUNLOCK(inp);
 704                                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 705                                     (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 706                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 707                                 }
 708                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 709                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 710                                 /* No unlock tcb assoc is gone */
 711                                 NET_EPOCH_EXIT(et);
 712                                 return (0);
 713                         }
 714                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 715                             TAILQ_EMPTY(&asoc->sent_queue) &&
 716                             (asoc->stream_queue_cnt == 0)) {
 717                                 /* there is nothing queued to send, so done */
 718                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 719                                         goto abort_anyway;
 720                                 }
 721                                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_SENT) &&
 722                                     (SCTP_GET_STATE(stcb) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 723                                         /* only send SHUTDOWN 1st time thru */
 724                                         struct sctp_nets *netp;
 725
 726                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 727                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 728                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 729                                         }
 730                                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 731                                         sctp_stop_timers_for_shutdown(stcb);
 732                                         if (stcb->asoc.alternate) {
 733                                                 netp = stcb->asoc.alternate;
 734                                         } else {
 735                                                 netp = stcb->asoc.primary_destination;
 736                                         }
 737                                         sctp_send_shutdown(stcb, netp);
 738                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 739                                             stcb->sctp_ep, stcb, netp);
 740                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 741                                             stcb->sctp_ep, stcb, NULL);
 742                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 743                                 }
 744                         } else {
 745                                 /*
 746                                  * we still got (or just got) data to send,
 747                                  * so set SHUTDOWN_PENDING
 748                                  */
 749                                 /*
 750                                  * XXX sockets draft says that SCTP_EOF
 751                                  * should be sent with no data. currently,
 752                                  * we will allow user data to be sent first
 753                                  * and move to SHUTDOWN-PENDING
 754                                  */
 755                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 756                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 757                                 if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 758                                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 759                                 }
 760                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 761                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 762                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 763                                         struct mbuf *op_err;
 764
 765                         abort_anyway:
 766                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 767                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 768                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 769                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 770                                         if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) ||
 771                                             (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 772                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 773                                         }
 774                                         SCTP_INP_RUNLOCK(inp);
 775                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 776                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 777                                         NET_EPOCH_EXIT(et);
 778                                         return (0);
 779                                 } else {
 780                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 781                                 }
 782                         }
 783                         soisdisconnecting(so);
 784                         NET_EPOCH_EXIT(et);
 785                         SCTP_TCB_UNLOCK(stcb);
 786                         SCTP_INP_RUNLOCK(inp);
 787                         return (0);
 788                 }
 789                 /* not reached */
 790         } else {
 791                 /* UDP model does not support this */
 792                 SCTP_INP_RUNLOCK(inp);
 793                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 794                 return (EOPNOTSUPP);
 795         }
 796 }
 797
 798 int
 799 sctp_flush(struct socket *so, int how)
 800 {
 801         /*
 802          * We will just clear out the values and let subsequent close clear
 803          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 804          * they will not be able to read the data, the socket will block
 805          * that from happening.
 806          */
 807         struct sctp_inpcb *inp;
 808
 809         inp = (struct sctp_inpcb *)so->so_pcb;
 810         if (inp == NULL) {
 811                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 812                 return (EINVAL);
 813         }
 814         SCTP_INP_RLOCK(inp);
 815         /* For the 1 to many model this does nothing */
 816         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 817                 SCTP_INP_RUNLOCK(inp);
 818                 return (0);
 819         }
 820         SCTP_INP_RUNLOCK(inp);
 821         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 822                 /*
 823                  * First make sure the sb will be happy, we don't use these
 824                  * except maybe the count
 825                  */
 826                 SCTP_INP_WLOCK(inp);
 827                 SCTP_INP_READ_LOCK(inp);
 828                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 829                 SCTP_INP_READ_UNLOCK(inp);
 830                 SCTP_INP_WUNLOCK(inp);
 831                 so->so_rcv.sb_cc = 0;
 832                 so->so_rcv.sb_mbcnt = 0;
 833                 so->so_rcv.sb_mb = NULL;
 834         }
 835         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 836                 /*
 837                  * First make sure the sb will be happy, we don't use these
 838                  * except maybe the count
 839                  */
 840                 so->so_snd.sb_cc = 0;
 841                 so->so_snd.sb_mbcnt = 0;
 842                 so->so_snd.sb_mb = NULL;
 843         }
 844         return (0);
 845 }
 846
 847 int
 848 sctp_shutdown(struct socket *so)
 849 {
 850         struct sctp_inpcb *inp;
 851
 852         inp = (struct sctp_inpcb *)so->so_pcb;
 853         if (inp == NULL) {
 854                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 855                 return (EINVAL);
 856         }
 857         SCTP_INP_RLOCK(inp);
 858         /* For UDP model this is a invalid call */
 859         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 860             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 861                 /* Restore the flags that the soshutdown took away. */
 862                 SOCKBUF_LOCK(&so->so_rcv);
 863                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 864                 SOCKBUF_UNLOCK(&so->so_rcv);
 865                 /* This proc will wakeup for read and do nothing (I hope) */
 866                 SCTP_INP_RUNLOCK(inp);
 867                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 868                 return (EOPNOTSUPP);
 869         } else {
 870                 /*
 871                  * Ok, if we reach here its the TCP model and it is either a
 872                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 873                  * against it.
 874                  */
 875                 struct epoch_tracker et;
 876                 struct sctp_tcb *stcb;
 877                 struct sctp_association *asoc;
 878                 struct sctp_nets *netp;
 879
 880                 if ((so->so_state &
 881                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 882                         SCTP_INP_RUNLOCK(inp);
 883                         return (ENOTCONN);
 884                 }
 885                 socantsendmore(so);
 886
 887                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 888                 if (stcb == NULL) {
 889                         /*
 890                          * Ok, we hit the case that the shutdown call was
 891                          * made after an abort or something. Nothing to do
 892                          * now.
 893                          */
 894                         SCTP_INP_RUNLOCK(inp);
 895                         return (0);
 896                 }
 897                 SCTP_TCB_LOCK(stcb);
 898                 asoc = &stcb->asoc;
 899                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 900                         SCTP_TCB_UNLOCK(stcb);
 901                         SCTP_INP_RUNLOCK(inp);
 902                         return (0);
 903                 }
 904                 if ((SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_WAIT) &&
 905                     (SCTP_GET_STATE(stcb) != SCTP_STATE_COOKIE_ECHOED) &&
 906                     (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN)) {
 907                         /*
 908                          * If we are not in or before ESTABLISHED, there is
 909                          * no protocol action required.
 910                          */
 911                         SCTP_TCB_UNLOCK(stcb);
 912                         SCTP_INP_RUNLOCK(inp);
 913                         return (0);
 914                 }
 915                 NET_EPOCH_ENTER(et);
 916                 if (stcb->asoc.alternate) {
 917                         netp = stcb->asoc.alternate;
 918                 } else {
 919                         netp = stcb->asoc.primary_destination;
 920                 }
 921                 if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) &&
 922                     TAILQ_EMPTY(&asoc->send_queue) &&
 923                     TAILQ_EMPTY(&asoc->sent_queue) &&
 924                     (asoc->stream_queue_cnt == 0)) {
 925                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 926                                 goto abort_anyway;
 927                         }
 928                         /* there is nothing queued to send, so I'm done... */
 929                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 930                         SCTP_SET_STATE(stcb, SCTP_STATE_SHUTDOWN_SENT);
 931                         sctp_stop_timers_for_shutdown(stcb);
 932                         sctp_send_shutdown(stcb, netp);
 933                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 934                             stcb->sctp_ep, stcb, netp);
 935                 } else {
 936                         /*
 937                          * We still got (or just got) data to send, so set
 938                          * SHUTDOWN_PENDING.
 939                          */
 940                         SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING);
 941                         if ((*asoc->ss_functions.sctp_ss_is_user_msgs_incomplete) (stcb, asoc)) {
 942                                 SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_PARTIAL_MSG_LEFT);
 943                         }
 944                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 945                             TAILQ_EMPTY(&asoc->sent_queue) &&
 946                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 947                                 struct mbuf *op_err;
 948
 949                 abort_anyway:
 950                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 951                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
 952                                 SCTP_INP_RUNLOCK(inp);
 953                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
 954                                     op_err, false, SCTP_SO_LOCKED);
 955                                 NET_EPOCH_EXIT(et);
 956                                 return (0);
 957                         }
 958                 }
 959                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, NULL);
 960                 /*
 961                  * XXX: Why do this in the case where we have still data
 962                  * queued?
 963                  */
 964                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 965                 SCTP_TCB_UNLOCK(stcb);
 966                 SCTP_INP_RUNLOCK(inp);
 967                 NET_EPOCH_EXIT(et);
 968                 return (0);
 969         }
 970 }
 971
 972 /*
 973  * copies a "user" presentable address and removes embedded scope, etc.
 974  * returns 0 on success, 1 on error
 975  */
 976 static uint32_t
 977 sctp_fill_user_address(struct sockaddr *dst, struct sockaddr *src)
 978 {
 979 #ifdef INET6
 980         struct sockaddr_in6 lsa6;
 981
 982         src = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)src,
 983             &lsa6);
 984 #endif
 985         memcpy(dst, src, src->sa_len);
 986         return (0);
 987 }
 988
 989 static size_t
 990 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
 991     struct sctp_tcb *stcb,
 992     size_t limit,
 993     struct sockaddr *addr,
 994     uint32_t vrf_id)
 995 {
 996         struct sctp_ifn *sctp_ifn;
 997         struct sctp_ifa *sctp_ifa;
 998         size_t actual;
 999         int loopback_scope;
1000 #if defined(INET)
1001         int ipv4_local_scope, ipv4_addr_legal;
1002 #endif
1003 #if defined(INET6)
1004         int local_scope, site_scope, ipv6_addr_legal;
1005 #endif
1006         struct sctp_vrf *vrf;
1007
1008         SCTP_IPI_ADDR_LOCK_ASSERT();
1009         actual = 0;
1010         if (limit == 0)
1011                 return (actual);
1012
1013         if (stcb) {
1014                 /* Turn on all the appropriate scope */
1015                 loopback_scope = stcb->asoc.scope.loopback_scope;
1016 #if defined(INET)
1017                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1018                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1019 #endif
1020 #if defined(INET6)
1021                 local_scope = stcb->asoc.scope.local_scope;
1022                 site_scope = stcb->asoc.scope.site_scope;
1023                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1024 #endif
1025         } else {
1026                 /* Use generic values for endpoints. */
1027                 loopback_scope = 1;
1028 #if defined(INET)
1029                 ipv4_local_scope = 1;
1030 #endif
1031 #if defined(INET6)
1032                 local_scope = 1;
1033                 site_scope = 1;
1034 #endif
1035                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1036 #if defined(INET6)
1037                         ipv6_addr_legal = 1;
1038 #endif
1039 #if defined(INET)
1040                         if (SCTP_IPV6_V6ONLY(inp)) {
1041                                 ipv4_addr_legal = 0;
1042                         } else {
1043                                 ipv4_addr_legal = 1;
1044                         }
1045 #endif
1046                 } else {
1047 #if defined(INET6)
1048                         ipv6_addr_legal = 0;
1049 #endif
1050 #if defined(INET)
1051                         ipv4_addr_legal = 1;
1052 #endif
1053                 }
1054         }
1055         vrf = sctp_find_vrf(vrf_id);
1056         if (vrf == NULL) {
1057                 return (0);
1058         }
1059         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1060                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1061                         if ((loopback_scope == 0) &&
1062                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1063                                 /* Skip loopback if loopback_scope not set */
1064                                 continue;
1065                         }
1066                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1067                                 if (stcb) {
1068                                         /*
1069                                          * For the BOUND-ALL case, the list
1070                                          * associated with a TCB is Always
1071                                          * considered a reverse list.. i.e.
1072                                          * it lists addresses that are NOT
1073                                          * part of the association. If this
1074                                          * is one of those we must skip it.
1075                                          */
1076                                         if (sctp_is_addr_restricted(stcb,
1077                                             sctp_ifa)) {
1078                                                 continue;
1079                                         }
1080                                 }
1081                                 switch (sctp_ifa->address.sa.sa_family) {
1082 #ifdef INET
1083                                 case AF_INET:
1084                                         if (ipv4_addr_legal) {
1085                                                 struct sockaddr_in *sin;
1086
1087                                                 sin = &sctp_ifa->address.sin;
1088                                                 if (sin->sin_addr.s_addr == 0) {
1089                                                         /*
1090                                                          * we skip
1091                                                          * unspecifed
1092                                                          * addresses
1093                                                          */
1094                                                         continue;
1095                                                 }
1096                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1097                                                     &sin->sin_addr) != 0) {
1098                                                         continue;
1099                                                 }
1100                                                 if ((ipv4_local_scope == 0) &&
1101                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1102                                                         continue;
1103                                                 }
1104 #ifdef INET6
1105                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1106                                                         if (actual + sizeof(struct sockaddr_in6) > limit) {
1107                                                                 return (actual);
1108                                                         }
1109                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)addr);
1110                                                         ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1111                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1112                                                         actual += sizeof(struct sockaddr_in6);
1113                                                 } else {
1114 #endif
1115                                                         if (actual + sizeof(struct sockaddr_in) > limit) {
1116                                                                 return (actual);
1117                                                         }
1118                                                         memcpy(addr, sin, sizeof(struct sockaddr_in));
1119                                                         ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1120                                                         addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in));
1121                                                         actual += sizeof(struct sockaddr_in);
1122 #ifdef INET6
1123                                                 }
1124 #endif
1125                                         } else {
1126                                                 continue;
1127                                         }
1128                                         break;
1129 #endif
1130 #ifdef INET6
1131                                 case AF_INET6:
1132                                         if (ipv6_addr_legal) {
1133                                                 struct sockaddr_in6 *sin6;
1134
1135                                                 sin6 = &sctp_ifa->address.sin6;
1136                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1137                                                         /*
1138                                                          * we skip
1139                                                          * unspecifed
1140                                                          * addresses
1141                                                          */
1142                                                         continue;
1143                                                 }
1144                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1145                                                     &sin6->sin6_addr) != 0) {
1146                                                         continue;
1147                                                 }
1148                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1149                                                         if (local_scope == 0)
1150                                                                 continue;
1151                                                         if (sin6->sin6_scope_id == 0) {
1152                                                                 if (sa6_recoverscope(sin6) != 0)
1153                                                                         /*
1154                                                                          *
1155                                                                          * bad
1156                                                                          * link
1157                                                                          *
1158                                                                          * local
1159                                                                          *
1160                                                                          * address
1161                                                                          */
1162                                                                         continue;
1163                                                         }
1164                                                 }
1165                                                 if ((site_scope == 0) &&
1166                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1167                                                         continue;
1168                                                 }
1169                                                 if (actual + sizeof(struct sockaddr_in6) > limit) {
1170                                                         return (actual);
1171                                                 }
1172                                                 memcpy(addr, sin6, sizeof(struct sockaddr_in6));
1173                                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1174                                                 addr = (struct sockaddr *)((caddr_t)addr + sizeof(struct sockaddr_in6));
1175                                                 actual += sizeof(struct sockaddr_in6);
1176                                         } else {
1177                                                 continue;
1178                                         }
1179                                         break;
1180 #endif
1181                                 default:
1182                                         /* TSNH */
1183                                         break;
1184                                 }
1185                         }
1186                 }
1187         } else {
1188                 struct sctp_laddr *laddr;
1189                 size_t sa_len;
1190
1191                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1192                         if (stcb) {
1193                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1194                                         continue;
1195                                 }
1196                         }
1197                         sa_len = laddr->ifa->address.sa.sa_len;
1198                         if (actual + sa_len > limit) {
1199                                 return (actual);
1200                         }
1201                         if (sctp_fill_user_address(addr, &laddr->ifa->address.sa))
1202                                 continue;
1203                         switch (laddr->ifa->address.sa.sa_family) {
1204 #ifdef INET
1205                         case AF_INET:
1206                                 ((struct sockaddr_in *)addr)->sin_port = inp->sctp_lport;
1207                                 break;
1208 #endif
1209 #ifdef INET6
1210                         case AF_INET6:
1211                                 ((struct sockaddr_in6 *)addr)->sin6_port = inp->sctp_lport;
1212                                 break;
1213 #endif
1214                         default:
1215                                 /* TSNH */
1216                                 break;
1217                         }
1218                         addr = (struct sockaddr *)((caddr_t)addr + sa_len);
1219                         actual += sa_len;
1220                 }
1221         }
1222         return (actual);
1223 }
1224
1225 static size_t
1226 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1227     struct sctp_tcb *stcb,
1228     size_t limit,
1229     struct sockaddr *addr)
1230 {
1231         size_t size = 0;
1232
1233         SCTP_IPI_ADDR_RLOCK();
1234         /* fill up addresses for the endpoint's default vrf */
1235         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, addr,
1236             inp->def_vrf_id);
1237         SCTP_IPI_ADDR_RUNLOCK();
1238         return (size);
1239 }
1240
1241 static int
1242 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1243 {
1244         int cnt = 0;
1245         struct sctp_vrf *vrf = NULL;
1246
1247         /*
1248          * In both sub-set bound an bound_all cases we return the MAXIMUM
1249          * number of addresses that you COULD get. In reality the sub-set
1250          * bound may have an exclusion list for a given TCB OR in the
1251          * bound-all case a TCB may NOT include the loopback or other
1252          * addresses as well.
1253          */
1254         SCTP_IPI_ADDR_LOCK_ASSERT();
1255         vrf = sctp_find_vrf(vrf_id);
1256         if (vrf == NULL) {
1257                 return (0);
1258         }
1259         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1260                 struct sctp_ifn *sctp_ifn;
1261                 struct sctp_ifa *sctp_ifa;
1262
1263                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1264                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1265                                 /* Count them if they are the right type */
1266                                 switch (sctp_ifa->address.sa.sa_family) {
1267 #ifdef INET
1268                                 case AF_INET:
1269 #ifdef INET6
1270                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1271                                                 cnt += sizeof(struct sockaddr_in6);
1272                                         else
1273                                                 cnt += sizeof(struct sockaddr_in);
1274 #else
1275                                         cnt += sizeof(struct sockaddr_in);
1276 #endif
1277                                         break;
1278 #endif
1279 #ifdef INET6
1280                                 case AF_INET6:
1281                                         cnt += sizeof(struct sockaddr_in6);
1282                                         break;
1283 #endif
1284                                 default:
1285                                         break;
1286                                 }
1287                         }
1288                 }
1289         } else {
1290                 struct sctp_laddr *laddr;
1291
1292                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1293                         switch (laddr->ifa->address.sa.sa_family) {
1294 #ifdef INET
1295                         case AF_INET:
1296 #ifdef INET6
1297                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1298                                         cnt += sizeof(struct sockaddr_in6);
1299                                 else
1300                                         cnt += sizeof(struct sockaddr_in);
1301 #else
1302                                 cnt += sizeof(struct sockaddr_in);
1303 #endif
1304                                 break;
1305 #endif
1306 #ifdef INET6
1307                         case AF_INET6:
1308                                 cnt += sizeof(struct sockaddr_in6);
1309                                 break;
1310 #endif
1311                         default:
1312                                 break;
1313                         }
1314                 }
1315         }
1316         return (cnt);
1317 }
1318
1319 static int
1320 sctp_count_max_addresses(struct sctp_inpcb *inp)
1321 {
1322         int cnt = 0;
1323
1324         SCTP_IPI_ADDR_RLOCK();
1325         /* count addresses for the endpoint's default VRF */
1326         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1327         SCTP_IPI_ADDR_RUNLOCK();
1328         return (cnt);
1329 }
1330
1331 static int
1332 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1333     size_t optsize, void *p, int delay)
1334 {
1335         int error;
1336         int creat_lock_on = 0;
1337         struct sctp_tcb *stcb = NULL;
1338         struct sockaddr *sa;
1339         unsigned int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1340         uint32_t vrf_id;
1341         sctp_assoc_t *a_id;
1342
1343         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1344
1345         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1346             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1347                 /* We are already connected AND the TCP model */
1348                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1349                 return (EADDRINUSE);
1350         }
1351
1352         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1353             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1354                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1355                 return (EINVAL);
1356         }
1357
1358         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1359                 SCTP_INP_RLOCK(inp);
1360                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1361                 SCTP_INP_RUNLOCK(inp);
1362         }
1363         if (stcb) {
1364                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1365                 return (EALREADY);
1366         }
1367         SCTP_INP_INCR_REF(inp);
1368         SCTP_ASOC_CREATE_LOCK(inp);
1369         creat_lock_on = 1;
1370         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1371             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1372                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1373                 error = EFAULT;
1374                 goto out_now;
1375         }
1376         totaddrp = (unsigned int *)optval;
1377         totaddr = *totaddrp;
1378         sa = (struct sockaddr *)(totaddrp + 1);
1379         error = sctp_connectx_helper_find(inp, sa, totaddr, &num_v4, &num_v6, (unsigned int)(optsize - sizeof(int)));
1380         if (error != 0) {
1381                 /* Already have or am bring up an association */
1382                 SCTP_ASOC_CREATE_UNLOCK(inp);
1383                 creat_lock_on = 0;
1384                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1385                 goto out_now;
1386         }
1387 #ifdef INET6
1388         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1389             (num_v6 > 0)) {
1390                 error = EINVAL;
1391                 goto out_now;
1392         }
1393         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1394             (num_v4 > 0)) {
1395                 if (SCTP_IPV6_V6ONLY(inp)) {
1396                         /*
1397                          * if IPV6_V6ONLY flag, ignore connections destined
1398                          * to a v4 addr or v4-mapped addr
1399                          */
1400                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1401                         error = EINVAL;
1402                         goto out_now;
1403                 }
1404         }
1405 #endif                          /* INET6 */
1406         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1407             SCTP_PCB_FLAGS_UNBOUND) {
1408                 /* Bind a ephemeral port */
1409                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1410                 if (error) {
1411                         goto out_now;
1412                 }
1413         }
1414
1415         /* FIX ME: do we want to pass in a vrf on the connect call? */
1416         vrf_id = inp->def_vrf_id;
1417
1418         /* We are GOOD to go */
1419         stcb = sctp_aloc_assoc_connected(inp, sa, &error, 0, 0, vrf_id,
1420             inp->sctp_ep.pre_open_stream_count,
1421             inp->sctp_ep.port,
1422             (struct thread *)p,
1423             SCTP_INITIALIZE_AUTH_PARAMS);
1424         if (stcb == NULL) {
1425                 /* Gak! no memory */
1426                 goto out_now;
1427         }
1428         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
1429         /* move to second address */
1430         switch (sa->sa_family) {
1431 #ifdef INET
1432         case AF_INET:
1433                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1434                 break;
1435 #endif
1436 #ifdef INET6
1437         case AF_INET6:
1438                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1439                 break;
1440 #endif
1441         default:
1442                 break;
1443         }
1444
1445         error = 0;
1446         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1447         /* Fill in the return id */
1448         if (error) {
1449                 goto out_now;
1450         }
1451         a_id = (sctp_assoc_t *)optval;
1452         *a_id = sctp_get_associd(stcb);
1453
1454         if (delay) {
1455                 /* doing delayed connection */
1456                 stcb->asoc.delayed_connection = 1;
1457                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1458         } else {
1459                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1460                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1461         }
1462         SCTP_TCB_UNLOCK(stcb);
1463 out_now:
1464         if (creat_lock_on) {
1465                 SCTP_ASOC_CREATE_UNLOCK(inp);
1466         }
1467         SCTP_INP_DECR_REF(inp);
1468         return (error);
1469 }
1470
1471 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1472         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1473             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1474                 SCTP_INP_RLOCK(inp); \
1475                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1476                 if (stcb) { \
1477                         SCTP_TCB_LOCK(stcb); \
1478                 } \
1479                 SCTP_INP_RUNLOCK(inp); \
1480         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1481                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1482                 if (stcb == NULL) { \
1483                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1484                         error = ENOENT; \
1485                         break; \
1486                 } \
1487         } else { \
1488                 stcb = NULL; \
1489         } \
1490 }
1491
1492 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1493         if (size < sizeof(type)) { \
1494                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1495                 error = EINVAL; \
1496                 break; \
1497         } else { \
1498                 destp = (type *)srcp; \
1499         } \
1500 }
1501
1502 static int
1503 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1504     void *p)
1505 {
1506         struct sctp_inpcb *inp = NULL;
1507         int error, val = 0;
1508         struct sctp_tcb *stcb = NULL;
1509
1510         if (optval == NULL) {
1511                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1512                 return (EINVAL);
1513         }
1514
1515         inp = (struct sctp_inpcb *)so->so_pcb;
1516         if (inp == NULL) {
1517                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1518                 return EINVAL;
1519         }
1520         error = 0;
1521
1522         switch (optname) {
1523         case SCTP_NODELAY:
1524         case SCTP_AUTOCLOSE:
1525         case SCTP_EXPLICIT_EOR:
1526         case SCTP_AUTO_ASCONF:
1527         case SCTP_DISABLE_FRAGMENTS:
1528         case SCTP_I_WANT_MAPPED_V4_ADDR:
1529         case SCTP_USE_EXT_RCVINFO:
1530                 SCTP_INP_RLOCK(inp);
1531                 switch (optname) {
1532                 case SCTP_DISABLE_FRAGMENTS:
1533                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1534                         break;
1535                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1536                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1537                         break;
1538                 case SCTP_AUTO_ASCONF:
1539                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1540                                 /* only valid for bound all sockets */
1541                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1542                         } else {
1543                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1544                                 error = EINVAL;
1545                                 goto flags_out;
1546                         }
1547                         break;
1548                 case SCTP_EXPLICIT_EOR:
1549                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1550                         break;
1551                 case SCTP_NODELAY:
1552                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1553                         break;
1554                 case SCTP_USE_EXT_RCVINFO:
1555                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1556                         break;
1557                 case SCTP_AUTOCLOSE:
1558                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1559                                 val = sctp_ticks_to_secs(inp->sctp_ep.auto_close_time);
1560                         else
1561                                 val = 0;
1562                         break;
1563
1564                 default:
1565                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1566                         error = ENOPROTOOPT;
1567                 }               /* end switch (sopt->sopt_name) */
1568                 if (*optsize < sizeof(val)) {
1569                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1570                         error = EINVAL;
1571                 }
1572 flags_out:
1573                 SCTP_INP_RUNLOCK(inp);
1574                 if (error == 0) {
1575                         /* return the option value */
1576                         *(int *)optval = val;
1577                         *optsize = sizeof(val);
1578                 }
1579                 break;
1580         case SCTP_GET_PACKET_LOG:
1581                 {
1582 #ifdef  SCTP_PACKET_LOGGING
1583                         uint8_t *target;
1584                         int ret;
1585
1586                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1587                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1588                         *optsize = ret;
1589 #else
1590                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1591                         error = EOPNOTSUPP;
1592 #endif
1593                         break;
1594                 }
1595         case SCTP_REUSE_PORT:
1596                 {
1597                         uint32_t *value;
1598
1599                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1600                                 /* Can't do this for a 1-m socket */
1601                                 error = EINVAL;
1602                                 break;
1603                         }
1604                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1605                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1606                         *optsize = sizeof(uint32_t);
1607                         break;
1608                 }
1609         case SCTP_PARTIAL_DELIVERY_POINT:
1610                 {
1611                         uint32_t *value;
1612
1613                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1614                         *value = inp->partial_delivery_point;
1615                         *optsize = sizeof(uint32_t);
1616                         break;
1617                 }
1618         case SCTP_FRAGMENT_INTERLEAVE:
1619                 {
1620                         uint32_t *value;
1621
1622                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1623                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1624                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1625                                         *value = SCTP_FRAG_LEVEL_2;
1626                                 } else {
1627                                         *value = SCTP_FRAG_LEVEL_1;
1628                                 }
1629                         } else {
1630                                 *value = SCTP_FRAG_LEVEL_0;
1631                         }
1632                         *optsize = sizeof(uint32_t);
1633                         break;
1634                 }
1635         case SCTP_INTERLEAVING_SUPPORTED:
1636                 {
1637                         struct sctp_assoc_value *av;
1638
1639                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1640                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1641
1642                         if (stcb) {
1643                                 av->assoc_value = stcb->asoc.idata_supported;
1644                                 SCTP_TCB_UNLOCK(stcb);
1645                         } else {
1646                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1647                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1648                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1649                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1650                                         SCTP_INP_RLOCK(inp);
1651                                         if (inp->idata_supported) {
1652                                                 av->assoc_value = 1;
1653                                         } else {
1654                                                 av->assoc_value = 0;
1655                                         }
1656                                         SCTP_INP_RUNLOCK(inp);
1657                                 } else {
1658                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1659                                         error = EINVAL;
1660                                 }
1661                         }
1662                         if (error == 0) {
1663                                 *optsize = sizeof(struct sctp_assoc_value);
1664                         }
1665                         break;
1666                 }
1667         case SCTP_CMT_ON_OFF:
1668                 {
1669                         struct sctp_assoc_value *av;
1670
1671                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1672                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1673                         if (stcb) {
1674                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1675                                 SCTP_TCB_UNLOCK(stcb);
1676                         } else {
1677                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1678                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1679                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1680                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1681                                         SCTP_INP_RLOCK(inp);
1682                                         av->assoc_value = inp->sctp_cmt_on_off;
1683                                         SCTP_INP_RUNLOCK(inp);
1684                                 } else {
1685                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1686                                         error = EINVAL;
1687                                 }
1688                         }
1689                         if (error == 0) {
1690                                 *optsize = sizeof(struct sctp_assoc_value);
1691                         }
1692                         break;
1693                 }
1694         case SCTP_PLUGGABLE_CC:
1695                 {
1696                         struct sctp_assoc_value *av;
1697
1698                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1699                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1700                         if (stcb) {
1701                                 av->assoc_value = stcb->asoc.congestion_control_module;
1702                                 SCTP_TCB_UNLOCK(stcb);
1703                         } else {
1704                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1705                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1706                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1707                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1708                                         SCTP_INP_RLOCK(inp);
1709                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1710                                         SCTP_INP_RUNLOCK(inp);
1711                                 } else {
1712                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1713                                         error = EINVAL;
1714                                 }
1715                         }
1716                         if (error == 0) {
1717                                 *optsize = sizeof(struct sctp_assoc_value);
1718                         }
1719                         break;
1720                 }
1721         case SCTP_CC_OPTION:
1722                 {
1723                         struct sctp_cc_option *cc_opt;
1724
1725                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1726                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1727                         if (stcb == NULL) {
1728                                 error = EINVAL;
1729                         } else {
1730                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1731                                         error = ENOTSUP;
1732                                 } else {
1733                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1734                                         *optsize = sizeof(struct sctp_cc_option);
1735                                 }
1736                                 SCTP_TCB_UNLOCK(stcb);
1737                         }
1738                         break;
1739                 }
1740         case SCTP_PLUGGABLE_SS:
1741                 {
1742                         struct sctp_assoc_value *av;
1743
1744                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1745                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1746                         if (stcb) {
1747                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1748                                 SCTP_TCB_UNLOCK(stcb);
1749                         } else {
1750                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1751                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1752                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1753                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1754                                         SCTP_INP_RLOCK(inp);
1755                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1756                                         SCTP_INP_RUNLOCK(inp);
1757                                 } else {
1758                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1759                                         error = EINVAL;
1760                                 }
1761                         }
1762                         if (error == 0) {
1763                                 *optsize = sizeof(struct sctp_assoc_value);
1764                         }
1765                         break;
1766                 }
1767         case SCTP_SS_VALUE:
1768                 {
1769                         struct sctp_stream_value *av;
1770
1771                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1772                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1773                         if (stcb) {
1774                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1775                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1776                                     &av->stream_value) < 0)) {
1777                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1778                                         error = EINVAL;
1779                                 } else {
1780                                         *optsize = sizeof(struct sctp_stream_value);
1781                                 }
1782                                 SCTP_TCB_UNLOCK(stcb);
1783                         } else {
1784                                 /*
1785                                  * Can't get stream value without
1786                                  * association
1787                                  */
1788                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1789                                 error = EINVAL;
1790                         }
1791                         break;
1792                 }
1793         case SCTP_GET_ADDR_LEN:
1794                 {
1795                         struct sctp_assoc_value *av;
1796
1797                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1798                         error = EINVAL;
1799 #ifdef INET
1800                         if (av->assoc_value == AF_INET) {
1801                                 av->assoc_value = sizeof(struct sockaddr_in);
1802                                 error = 0;
1803                         }
1804 #endif
1805 #ifdef INET6
1806                         if (av->assoc_value == AF_INET6) {
1807                                 av->assoc_value = sizeof(struct sockaddr_in6);
1808                                 error = 0;
1809                         }
1810 #endif
1811                         if (error) {
1812                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1813                         } else {
1814                                 *optsize = sizeof(struct sctp_assoc_value);
1815                         }
1816                         break;
1817                 }
1818         case SCTP_GET_ASSOC_NUMBER:
1819                 {
1820                         uint32_t *value, cnt;
1821
1822                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1823                         SCTP_INP_RLOCK(inp);
1824                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1825                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1826                                 /* Can't do this for a 1-1 socket */
1827                                 error = EINVAL;
1828                                 SCTP_INP_RUNLOCK(inp);
1829                                 break;
1830                         }
1831                         cnt = 0;
1832                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1833                                 cnt++;
1834                         }
1835                         SCTP_INP_RUNLOCK(inp);
1836                         *value = cnt;
1837                         *optsize = sizeof(uint32_t);
1838                         break;
1839                 }
1840         case SCTP_GET_ASSOC_ID_LIST:
1841                 {
1842                         struct sctp_assoc_ids *ids;
1843                         uint32_t at;
1844                         size_t limit;
1845
1846                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1847                         SCTP_INP_RLOCK(inp);
1848                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1849                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1850                                 /* Can't do this for a 1-1 socket */
1851                                 error = EINVAL;
1852                                 SCTP_INP_RUNLOCK(inp);
1853                                 break;
1854                         }
1855                         at = 0;
1856                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1857                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1858                                 if (at < limit) {
1859                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1860                                         if (at == 0) {
1861                                                 error = EINVAL;
1862                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1863                                                 break;
1864                                         }
1865                                 } else {
1866                                         error = EINVAL;
1867                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1868                                         break;
1869                                 }
1870                         }
1871                         SCTP_INP_RUNLOCK(inp);
1872                         if (error == 0) {
1873                                 ids->gaids_number_of_ids = at;
1874                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1875                         }
1876                         break;
1877                 }
1878         case SCTP_CONTEXT:
1879                 {
1880                         struct sctp_assoc_value *av;
1881
1882                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1883                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1884
1885                         if (stcb) {
1886                                 av->assoc_value = stcb->asoc.context;
1887                                 SCTP_TCB_UNLOCK(stcb);
1888                         } else {
1889                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1890                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1891                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1892                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
1893                                         SCTP_INP_RLOCK(inp);
1894                                         av->assoc_value = inp->sctp_context;
1895                                         SCTP_INP_RUNLOCK(inp);
1896                                 } else {
1897                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1898                                         error = EINVAL;
1899                                 }
1900                         }
1901                         if (error == 0) {
1902                                 *optsize = sizeof(struct sctp_assoc_value);
1903                         }
1904                         break;
1905                 }
1906         case SCTP_VRF_ID:
1907                 {
1908                         uint32_t *default_vrfid;
1909
1910                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1911                         *default_vrfid = inp->def_vrf_id;
1912                         *optsize = sizeof(uint32_t);
1913                         break;
1914                 }
1915         case SCTP_GET_ASOC_VRF:
1916                 {
1917                         struct sctp_assoc_value *id;
1918
1919                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1920                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1921                         if (stcb == NULL) {
1922                                 error = EINVAL;
1923                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1924                         } else {
1925                                 id->assoc_value = stcb->asoc.vrf_id;
1926                                 SCTP_TCB_UNLOCK(stcb);
1927                                 *optsize = sizeof(struct sctp_assoc_value);
1928                         }
1929                         break;
1930                 }
1931         case SCTP_GET_VRF_IDS:
1932                 {
1933                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1934                         error = EOPNOTSUPP;
1935                         break;
1936                 }
1937         case SCTP_GET_NONCE_VALUES:
1938                 {
1939                         struct sctp_get_nonce_values *gnv;
1940
1941                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1942                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1943
1944                         if (stcb) {
1945                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
1946                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
1947                                 SCTP_TCB_UNLOCK(stcb);
1948                                 *optsize = sizeof(struct sctp_get_nonce_values);
1949                         } else {
1950                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1951                                 error = ENOTCONN;
1952                         }
1953                         break;
1954                 }
1955         case SCTP_DELAYED_SACK:
1956                 {
1957                         struct sctp_sack_info *sack;
1958
1959                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
1960                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
1961                         if (stcb) {
1962                                 sack->sack_delay = stcb->asoc.delayed_ack;
1963                                 sack->sack_freq = stcb->asoc.sack_freq;
1964                                 SCTP_TCB_UNLOCK(stcb);
1965                         } else {
1966                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1967                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1968                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
1969                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC))) {
1970                                         SCTP_INP_RLOCK(inp);
1971                                         sack->sack_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
1972                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
1973                                         SCTP_INP_RUNLOCK(inp);
1974                                 } else {
1975                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1976                                         error = EINVAL;
1977                                 }
1978                         }
1979                         if (error == 0) {
1980                                 *optsize = sizeof(struct sctp_sack_info);
1981                         }
1982                         break;
1983                 }
1984         case SCTP_GET_SNDBUF_USE:
1985                 {
1986                         struct sctp_sockstat *ss;
1987
1988                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
1989                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
1990
1991                         if (stcb) {
1992                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
1993                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
1994                                     stcb->asoc.size_on_all_streams);
1995                                 SCTP_TCB_UNLOCK(stcb);
1996                                 *optsize = sizeof(struct sctp_sockstat);
1997                         } else {
1998                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
1999                                 error = ENOTCONN;
2000                         }
2001                         break;
2002                 }
2003         case SCTP_MAX_BURST:
2004                 {
2005                         struct sctp_assoc_value *av;
2006
2007                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2008                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2009
2010                         if (stcb) {
2011                                 av->assoc_value = stcb->asoc.max_burst;
2012                                 SCTP_TCB_UNLOCK(stcb);
2013                         } else {
2014                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2015                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2016                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2017                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2018                                         SCTP_INP_RLOCK(inp);
2019                                         av->assoc_value = inp->sctp_ep.max_burst;
2020                                         SCTP_INP_RUNLOCK(inp);
2021                                 } else {
2022                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2023                                         error = EINVAL;
2024                                 }
2025                         }
2026                         if (error == 0) {
2027                                 *optsize = sizeof(struct sctp_assoc_value);
2028                         }
2029                         break;
2030                 }
2031         case SCTP_MAXSEG:
2032                 {
2033                         struct sctp_assoc_value *av;
2034                         int ovh;
2035
2036                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2037                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2038
2039                         if (stcb) {
2040                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2041                                 SCTP_TCB_UNLOCK(stcb);
2042                         } else {
2043                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2044                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2045                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2046                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
2047                                         SCTP_INP_RLOCK(inp);
2048                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2049                                                 ovh = SCTP_MED_OVERHEAD;
2050                                         } else {
2051                                                 ovh = SCTP_MED_V4_OVERHEAD;
2052                                         }
2053                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2054                                                 av->assoc_value = 0;
2055                                         else
2056                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2057                                         SCTP_INP_RUNLOCK(inp);
2058                                 } else {
2059                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2060                                         error = EINVAL;
2061                                 }
2062                         }
2063                         if (error == 0) {
2064                                 *optsize = sizeof(struct sctp_assoc_value);
2065                         }
2066                         break;
2067                 }
2068         case SCTP_GET_STAT_LOG:
2069                 error = sctp_fill_stat_log(optval, optsize);
2070                 break;
2071         case SCTP_EVENTS:
2072                 {
2073                         struct sctp_event_subscribe *events;
2074
2075                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2076                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2077                         SCTP_INP_RLOCK(inp);
2078                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2079                                 events->sctp_data_io_event = 1;
2080
2081                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2082                                 events->sctp_association_event = 1;
2083
2084                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2085                                 events->sctp_address_event = 1;
2086
2087                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2088                                 events->sctp_send_failure_event = 1;
2089
2090                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2091                                 events->sctp_peer_error_event = 1;
2092
2093                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2094                                 events->sctp_shutdown_event = 1;
2095
2096                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2097                                 events->sctp_partial_delivery_event = 1;
2098
2099                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2100                                 events->sctp_adaptation_layer_event = 1;
2101
2102                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2103                                 events->sctp_authentication_event = 1;
2104
2105                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2106                                 events->sctp_sender_dry_event = 1;
2107
2108                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2109                                 events->sctp_stream_reset_event = 1;
2110                         SCTP_INP_RUNLOCK(inp);
2111                         *optsize = sizeof(struct sctp_event_subscribe);
2112                         break;
2113                 }
2114         case SCTP_ADAPTATION_LAYER:
2115                 {
2116                         uint32_t *value;
2117
2118                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2119
2120                         SCTP_INP_RLOCK(inp);
2121                         *value = inp->sctp_ep.adaptation_layer_indicator;
2122                         SCTP_INP_RUNLOCK(inp);
2123                         *optsize = sizeof(uint32_t);
2124                         break;
2125                 }
2126         case SCTP_SET_INITIAL_DBG_SEQ:
2127                 {
2128                         uint32_t *value;
2129
2130                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2131                         SCTP_INP_RLOCK(inp);
2132                         *value = inp->sctp_ep.initial_sequence_debug;
2133                         SCTP_INP_RUNLOCK(inp);
2134                         *optsize = sizeof(uint32_t);
2135                         break;
2136                 }
2137         case SCTP_GET_LOCAL_ADDR_SIZE:
2138                 {
2139                         uint32_t *value;
2140
2141                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2142                         SCTP_INP_RLOCK(inp);
2143                         *value = sctp_count_max_addresses(inp);
2144                         SCTP_INP_RUNLOCK(inp);
2145                         *optsize = sizeof(uint32_t);
2146                         break;
2147                 }
2148         case SCTP_GET_REMOTE_ADDR_SIZE:
2149                 {
2150                         uint32_t *value;
2151                         size_t size;
2152                         struct sctp_nets *net;
2153
2154                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2155                         /* FIXME MT: change to sctp_assoc_value? */
2156                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
2157
2158                         if (stcb) {
2159                                 size = 0;
2160                                 /* Count the sizes */
2161                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2162                                         switch (net->ro._l_addr.sa.sa_family) {
2163 #ifdef INET
2164                                         case AF_INET:
2165 #ifdef INET6
2166                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2167                                                         size += sizeof(struct sockaddr_in6);
2168                                                 } else {
2169                                                         size += sizeof(struct sockaddr_in);
2170                                                 }
2171 #else
2172                                                 size += sizeof(struct sockaddr_in);
2173 #endif
2174                                                 break;
2175 #endif
2176 #ifdef INET6
2177                                         case AF_INET6:
2178                                                 size += sizeof(struct sockaddr_in6);
2179                                                 break;
2180 #endif
2181                                         default:
2182                                                 break;
2183                                         }
2184                                 }
2185                                 SCTP_TCB_UNLOCK(stcb);
2186                                 *value = (uint32_t)size;
2187                                 *optsize = sizeof(uint32_t);
2188                         } else {
2189                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2190                                 error = ENOTCONN;
2191                         }
2192                         break;
2193                 }
2194         case SCTP_GET_PEER_ADDRESSES:
2195                 /*
2196                  * Get the address information, an array is passed in to
2197                  * fill up we pack it.
2198                  */
2199                 {
2200                         size_t cpsz, left;
2201                         struct sockaddr *addr;
2202                         struct sctp_nets *net;
2203                         struct sctp_getaddresses *saddr;
2204
2205                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2206                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2207
2208                         if (stcb) {
2209                                 left = *optsize - offsetof(struct sctp_getaddresses, addr);
2210                                 *optsize = offsetof(struct sctp_getaddresses, addr);
2211                                 addr = &saddr->addr[0].sa;
2212
2213                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2214                                         switch (net->ro._l_addr.sa.sa_family) {
2215 #ifdef INET
2216                                         case AF_INET:
2217 #ifdef INET6
2218                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2219                                                         cpsz = sizeof(struct sockaddr_in6);
2220                                                 } else {
2221                                                         cpsz = sizeof(struct sockaddr_in);
2222                                                 }
2223 #else
2224                                                 cpsz = sizeof(struct sockaddr_in);
2225 #endif
2226                                                 break;
2227 #endif
2228 #ifdef INET6
2229                                         case AF_INET6:
2230                                                 cpsz = sizeof(struct sockaddr_in6);
2231                                                 break;
2232 #endif
2233                                         default:
2234                                                 cpsz = 0;
2235                                                 break;
2236                                         }
2237                                         if (cpsz == 0) {
2238                                                 break;
2239                                         }
2240                                         if (left < cpsz) {
2241                                                 /* not enough room. */
2242                                                 break;
2243                                         }
2244 #if defined(INET) && defined(INET6)
2245                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2246                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2247                                                 /* Must map the address */
2248                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2249                                                     (struct sockaddr_in6 *)addr);
2250                                         } else {
2251                                                 memcpy(addr, &net->ro._l_addr, cpsz);
2252                                         }
2253 #else
2254                                         memcpy(addr, &net->ro._l_addr, cpsz);
2255 #endif
2256                                         ((struct sockaddr_in *)addr)->sin_port = stcb->rport;
2257
2258                                         addr = (struct sockaddr *)((caddr_t)addr + cpsz);
2259                                         left -= cpsz;
2260                                         *optsize += cpsz;
2261                                 }
2262                                 SCTP_TCB_UNLOCK(stcb);
2263                         } else {
2264                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2265                                 error = ENOENT;
2266                         }
2267                         break;
2268                 }
2269         case SCTP_GET_LOCAL_ADDRESSES:
2270                 {
2271                         size_t limit, actual;
2272                         struct sctp_getaddresses *saddr;
2273
2274                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2275                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2276
2277                         limit = *optsize - offsetof(struct sctp_getaddresses, addr);
2278                         actual = sctp_fill_up_addresses(inp, stcb, limit, &saddr->addr[0].sa);
2279                         if (stcb) {
2280                                 SCTP_TCB_UNLOCK(stcb);
2281                         }
2282                         *optsize = offsetof(struct sctp_getaddresses, addr) + actual;
2283                         break;
2284                 }
2285         case SCTP_PEER_ADDR_PARAMS:
2286                 {
2287                         struct sctp_paddrparams *paddrp;
2288                         struct sctp_nets *net;
2289                         struct sockaddr *addr;
2290 #if defined(INET) && defined(INET6)
2291                         struct sockaddr_in sin_store;
2292 #endif
2293
2294                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2295                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2296
2297 #if defined(INET) && defined(INET6)
2298                         if (paddrp->spp_address.ss_family == AF_INET6) {
2299                                 struct sockaddr_in6 *sin6;
2300
2301                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2302                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2303                                         in6_sin6_2_sin(&sin_store, sin6);
2304                                         addr = (struct sockaddr *)&sin_store;
2305                                 } else {
2306                                         addr = (struct sockaddr *)&paddrp->spp_address;
2307                                 }
2308                         } else {
2309                                 addr = (struct sockaddr *)&paddrp->spp_address;
2310                         }
2311 #else
2312                         addr = (struct sockaddr *)&paddrp->spp_address;
2313 #endif
2314                         if (stcb != NULL) {
2315                                 net = sctp_findnet(stcb, addr);
2316                         } else {
2317                                 /*
2318                                  * We increment here since
2319                                  * sctp_findassociation_ep_addr() wil do a
2320                                  * decrement if it finds the stcb as long as
2321                                  * the locked tcb (last argument) is NOT a
2322                                  * TCB.. aka NULL.
2323                                  */
2324                                 net = NULL;
2325                                 SCTP_INP_INCR_REF(inp);
2326                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2327                                 if (stcb == NULL) {
2328                                         SCTP_INP_DECR_REF(inp);
2329                                 }
2330                         }
2331                         if ((stcb != NULL) && (net == NULL)) {
2332 #ifdef INET
2333                                 if (addr->sa_family == AF_INET) {
2334                                         struct sockaddr_in *sin;
2335
2336                                         sin = (struct sockaddr_in *)addr;
2337                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2338                                                 error = EINVAL;
2339                                                 SCTP_TCB_UNLOCK(stcb);
2340                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2341                                                 break;
2342                                         }
2343                                 } else
2344 #endif
2345 #ifdef INET6
2346                                 if (addr->sa_family == AF_INET6) {
2347                                         struct sockaddr_in6 *sin6;
2348
2349                                         sin6 = (struct sockaddr_in6 *)addr;
2350                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2351                                                 error = EINVAL;
2352                                                 SCTP_TCB_UNLOCK(stcb);
2353                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2354                                                 break;
2355                                         }
2356                                 } else
2357 #endif
2358                                 {
2359                                         error = EAFNOSUPPORT;
2360                                         SCTP_TCB_UNLOCK(stcb);
2361                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2362                                         break;
2363                                 }
2364                         }
2365
2366                         if (stcb != NULL) {
2367                                 /* Applies to the specific association */
2368                                 paddrp->spp_flags = 0;
2369                                 if (net != NULL) {
2370                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2371                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2372                                         paddrp->spp_pathmtu = net->mtu;
2373                                         switch (net->ro._l_addr.sa.sa_family) {
2374 #ifdef INET
2375                                         case AF_INET:
2376                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2377                                                 break;
2378 #endif
2379 #ifdef INET6
2380                                         case AF_INET6:
2381                                                 paddrp->spp_pathmtu -= SCTP_MIN_OVERHEAD;
2382                                                 break;
2383 #endif
2384                                         default:
2385                                                 break;
2386                                         }
2387                                         /* get flags for HB */
2388                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2389                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2390                                         } else {
2391                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2392                                         }
2393                                         /* get flags for PMTU */
2394                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2395                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2396                                         } else {
2397                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2398                                         }
2399                                         if (net->dscp & 0x01) {
2400                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2401                                                 paddrp->spp_flags |= SPP_DSCP;
2402                                         }
2403 #ifdef INET6
2404                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2405                                             (net->flowlabel & 0x80000000)) {
2406                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2407                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2408                                         }
2409 #endif
2410                                 } else {
2411                                         /*
2412                                          * No destination so return default
2413                                          * value
2414                                          */
2415                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2416                                         paddrp->spp_pathmtu = stcb->asoc.default_mtu;
2417                                         if (stcb->asoc.default_dscp & 0x01) {
2418                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2419                                                 paddrp->spp_flags |= SPP_DSCP;
2420                                         }
2421 #ifdef INET6
2422                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2423                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2424                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2425                                         }
2426 #endif
2427                                         /* default settings should be these */
2428                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2429                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2430                                         } else {
2431                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2432                                         }
2433                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2434                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2435                                         } else {
2436                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2437                                         }
2438                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2439                                 }
2440                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2441                                 SCTP_TCB_UNLOCK(stcb);
2442                         } else {
2443                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2444                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2445                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2446                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
2447                                         /* Use endpoint defaults */
2448                                         SCTP_INP_RLOCK(inp);
2449                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2450                                         paddrp->spp_hbinterval = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2451                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2452                                         /* get inp's default */
2453                                         if (inp->sctp_ep.default_dscp & 0x01) {
2454                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2455                                                 paddrp->spp_flags |= SPP_DSCP;
2456                                         }
2457 #ifdef INET6
2458                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2459                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2460                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2461                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2462                                         }
2463 #endif
2464                                         paddrp->spp_pathmtu = inp->sctp_ep.default_mtu;
2465
2466                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2467                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2468                                         } else {
2469                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2470                                         }
2471                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2472                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2473                                         } else {
2474                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2475                                         }
2476                                         SCTP_INP_RUNLOCK(inp);
2477                                 } else {
2478                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2479                                         error = EINVAL;
2480                                 }
2481                         }
2482                         if (error == 0) {
2483                                 *optsize = sizeof(struct sctp_paddrparams);
2484                         }
2485                         break;
2486                 }
2487         case SCTP_GET_PEER_ADDR_INFO:
2488                 {
2489                         struct sctp_paddrinfo *paddri;
2490                         struct sctp_nets *net;
2491                         struct sockaddr *addr;
2492 #if defined(INET) && defined(INET6)
2493                         struct sockaddr_in sin_store;
2494 #endif
2495
2496                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2497                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2498
2499 #if defined(INET) && defined(INET6)
2500                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2501                                 struct sockaddr_in6 *sin6;
2502
2503                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2504                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2505                                         in6_sin6_2_sin(&sin_store, sin6);
2506                                         addr = (struct sockaddr *)&sin_store;
2507                                 } else {
2508                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2509                                 }
2510                         } else {
2511                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2512                         }
2513 #else
2514                         addr = (struct sockaddr *)&paddri->spinfo_address;
2515 #endif
2516                         if (stcb != NULL) {
2517                                 net = sctp_findnet(stcb, addr);
2518                         } else {
2519                                 /*
2520                                  * We increment here since
2521                                  * sctp_findassociation_ep_addr() wil do a
2522                                  * decrement if it finds the stcb as long as
2523                                  * the locked tcb (last argument) is NOT a
2524                                  * TCB.. aka NULL.
2525                                  */
2526                                 net = NULL;
2527                                 SCTP_INP_INCR_REF(inp);
2528                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2529                                 if (stcb == NULL) {
2530                                         SCTP_INP_DECR_REF(inp);
2531                                 }
2532                         }
2533
2534                         if ((stcb != NULL) && (net != NULL)) {
2535                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2536                                         /* It's unconfirmed */
2537                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2538                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2539                                         /* It's active */
2540                                         paddri->spinfo_state = SCTP_ACTIVE;
2541                                 } else {
2542                                         /* It's inactive */
2543                                         paddri->spinfo_state = SCTP_INACTIVE;
2544                                 }
2545                                 paddri->spinfo_cwnd = net->cwnd;
2546                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2547                                 paddri->spinfo_rto = net->RTO;
2548                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2549                                 paddri->spinfo_mtu = net->mtu;
2550                                 switch (addr->sa_family) {
2551 #if defined(INET)
2552                                 case AF_INET:
2553                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2554                                         break;
2555 #endif
2556 #if defined(INET6)
2557                                 case AF_INET6:
2558                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2559                                         break;
2560 #endif
2561                                 default:
2562                                         break;
2563                                 }
2564                                 SCTP_TCB_UNLOCK(stcb);
2565                                 *optsize = sizeof(struct sctp_paddrinfo);
2566                         } else {
2567                                 if (stcb != NULL) {
2568                                         SCTP_TCB_UNLOCK(stcb);
2569                                 }
2570                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2571                                 error = ENOENT;
2572                         }
2573                         break;
2574                 }
2575         case SCTP_PCB_STATUS:
2576                 {
2577                         struct sctp_pcbinfo *spcb;
2578
2579                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2580                         sctp_fill_pcbinfo(spcb);
2581                         *optsize = sizeof(struct sctp_pcbinfo);
2582                         break;
2583                 }
2584         case SCTP_STATUS:
2585                 {
2586                         struct sctp_nets *net;
2587                         struct sctp_status *sstat;
2588
2589                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2590                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2591
2592                         if (stcb == NULL) {
2593                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2594                                 error = EINVAL;
2595                                 break;
2596                         }
2597                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2598                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2599                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2600                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2601                         /*
2602                          * We can't include chunks that have been passed to
2603                          * the socket layer. Only things in queue.
2604                          */
2605                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2606                             stcb->asoc.cnt_on_all_streams);
2607                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2608                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2609                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2610                         net = stcb->asoc.primary_destination;
2611                         if (net != NULL) {
2612                                 memcpy(&sstat->sstat_primary.spinfo_address,
2613                                     &net->ro._l_addr,
2614                                     ((struct sockaddr *)(&net->ro._l_addr))->sa_len);
2615                                 ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2616                                 /*
2617                                  * Again the user can get info from
2618                                  * sctp_constants.h for what the state of
2619                                  * the network is.
2620                                  */
2621                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2622                                         /* It's unconfirmed */
2623                                         sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2624                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2625                                         /* It's active */
2626                                         sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2627                                 } else {
2628                                         /* It's inactive */
2629                                         sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2630                                 }
2631                                 sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2632                                 sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2633                                 sstat->sstat_primary.spinfo_rto = net->RTO;
2634                                 sstat->sstat_primary.spinfo_mtu = net->mtu;
2635                                 switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2636 #if defined(INET)
2637                                 case AF_INET:
2638                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2639                                         break;
2640 #endif
2641 #if defined(INET6)
2642                                 case AF_INET6:
2643                                         sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2644                                         break;
2645 #endif
2646                                 default:
2647                                         break;
2648                                 }
2649                         } else {
2650                                 memset(&sstat->sstat_primary, 0, sizeof(struct sctp_paddrinfo));
2651                         }
2652                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2653                         SCTP_TCB_UNLOCK(stcb);
2654                         *optsize = sizeof(struct sctp_status);
2655                         break;
2656                 }
2657         case SCTP_RTOINFO:
2658                 {
2659                         struct sctp_rtoinfo *srto;
2660
2661                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2662                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2663
2664                         if (stcb) {
2665                                 srto->srto_initial = stcb->asoc.initial_rto;
2666                                 srto->srto_max = stcb->asoc.maxrto;
2667                                 srto->srto_min = stcb->asoc.minrto;
2668                                 SCTP_TCB_UNLOCK(stcb);
2669                         } else {
2670                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2671                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2672                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2673                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
2674                                         SCTP_INP_RLOCK(inp);
2675                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2676                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2677                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2678                                         SCTP_INP_RUNLOCK(inp);
2679                                 } else {
2680                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2681                                         error = EINVAL;
2682                                 }
2683                         }
2684                         if (error == 0) {
2685                                 *optsize = sizeof(struct sctp_rtoinfo);
2686                         }
2687                         break;
2688                 }
2689         case SCTP_TIMEOUTS:
2690                 {
2691                         struct sctp_timeouts *stimo;
2692
2693                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2694                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2695
2696                         if (stcb) {
2697                                 stimo->stimo_init = stcb->asoc.timoinit;
2698                                 stimo->stimo_data = stcb->asoc.timodata;
2699                                 stimo->stimo_sack = stcb->asoc.timosack;
2700                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2701                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2702                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2703                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2704                                 SCTP_TCB_UNLOCK(stcb);
2705                                 *optsize = sizeof(struct sctp_timeouts);
2706                         } else {
2707                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2708                                 error = EINVAL;
2709                         }
2710                         break;
2711                 }
2712         case SCTP_ASSOCINFO:
2713                 {
2714                         struct sctp_assocparams *sasoc;
2715
2716                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2717                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2718
2719                         if (stcb) {
2720                                 sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(stcb->asoc.cookie_life);
2721                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2722                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2723                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2724                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2725                                 SCTP_TCB_UNLOCK(stcb);
2726                         } else {
2727                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2728                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2729                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2730                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
2731                                         SCTP_INP_RLOCK(inp);
2732                                         sasoc->sasoc_cookie_life = sctp_ticks_to_msecs(inp->sctp_ep.def_cookie_life);
2733                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2734                                         sasoc->sasoc_number_peer_destinations = 0;
2735                                         sasoc->sasoc_peer_rwnd = 0;
2736                                         sasoc->sasoc_local_rwnd = (uint32_t)sbspace(&inp->sctp_socket->so_rcv);
2737                                         SCTP_INP_RUNLOCK(inp);
2738                                 } else {
2739                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2740                                         error = EINVAL;
2741                                 }
2742                         }
2743                         if (error == 0) {
2744                                 *optsize = sizeof(struct sctp_assocparams);
2745                         }
2746                         break;
2747                 }
2748         case SCTP_DEFAULT_SEND_PARAM:
2749                 {
2750                         struct sctp_sndrcvinfo *s_info;
2751
2752                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2753                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2754
2755                         if (stcb) {
2756                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2757                                 SCTP_TCB_UNLOCK(stcb);
2758                         } else {
2759                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2760                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2761                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2762                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC))) {
2763                                         SCTP_INP_RLOCK(inp);
2764                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2765                                         SCTP_INP_RUNLOCK(inp);
2766                                 } else {
2767                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2768                                         error = EINVAL;
2769                                 }
2770                         }
2771                         if (error == 0) {
2772                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2773                         }
2774                         break;
2775                 }
2776         case SCTP_INITMSG:
2777                 {
2778                         struct sctp_initmsg *sinit;
2779
2780                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2781                         SCTP_INP_RLOCK(inp);
2782                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2783                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2784                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2785                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2786                         SCTP_INP_RUNLOCK(inp);
2787                         *optsize = sizeof(struct sctp_initmsg);
2788                         break;
2789                 }
2790         case SCTP_PRIMARY_ADDR:
2791                 /* we allow a "get" operation on this */
2792                 {
2793                         struct sctp_setprim *ssp;
2794
2795                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2796                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2797
2798                         if (stcb) {
2799                                 union sctp_sockstore *addr;
2800
2801                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2802                                 switch (addr->sa.sa_family) {
2803 #ifdef INET
2804                                 case AF_INET:
2805 #ifdef INET6
2806                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2807                                                 in6_sin_2_v4mapsin6(&addr->sin,
2808                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2809                                         } else {
2810                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2811                                         }
2812 #else
2813                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2814 #endif
2815                                         break;
2816 #endif
2817 #ifdef INET6
2818                                 case AF_INET6:
2819                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2820                                         break;
2821 #endif
2822                                 default:
2823                                         break;
2824                                 }
2825                                 SCTP_TCB_UNLOCK(stcb);
2826                                 *optsize = sizeof(struct sctp_setprim);
2827                         } else {
2828                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2829                                 error = EINVAL;
2830                         }
2831                         break;
2832                 }
2833         case SCTP_HMAC_IDENT:
2834                 {
2835                         struct sctp_hmacalgo *shmac;
2836                         sctp_hmaclist_t *hmaclist;
2837                         size_t size;
2838                         int i;
2839
2840                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2841
2842                         SCTP_INP_RLOCK(inp);
2843                         hmaclist = inp->sctp_ep.local_hmacs;
2844                         if (hmaclist == NULL) {
2845                                 /* no HMACs to return */
2846                                 *optsize = sizeof(*shmac);
2847                                 SCTP_INP_RUNLOCK(inp);
2848                                 break;
2849                         }
2850                         /* is there room for all of the hmac ids? */
2851                         size = sizeof(*shmac) + (hmaclist->num_algo *
2852                             sizeof(shmac->shmac_idents[0]));
2853                         if (*optsize < size) {
2854                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2855                                 error = EINVAL;
2856                                 SCTP_INP_RUNLOCK(inp);
2857                                 break;
2858                         }
2859                         /* copy in the list */
2860                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2861                         for (i = 0; i < hmaclist->num_algo; i++) {
2862                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2863                         }
2864                         SCTP_INP_RUNLOCK(inp);
2865                         *optsize = size;
2866                         break;
2867                 }
2868         case SCTP_AUTH_ACTIVE_KEY:
2869                 {
2870                         struct sctp_authkeyid *scact;
2871
2872                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2873                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2874
2875                         if (stcb) {
2876                                 /* get the active key on the assoc */
2877                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2878                                 SCTP_TCB_UNLOCK(stcb);
2879                         } else {
2880                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2881                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2882                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2883                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC))) {
2884                                         /* get the endpoint active key */
2885                                         SCTP_INP_RLOCK(inp);
2886                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2887                                         SCTP_INP_RUNLOCK(inp);
2888                                 } else {
2889                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2890                                         error = EINVAL;
2891                                 }
2892                         }
2893                         if (error == 0) {
2894                                 *optsize = sizeof(struct sctp_authkeyid);
2895                         }
2896                         break;
2897                 }
2898         case SCTP_LOCAL_AUTH_CHUNKS:
2899                 {
2900                         struct sctp_authchunks *sac;
2901                         sctp_auth_chklist_t *chklist = NULL;
2902                         size_t size = 0;
2903
2904                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2905                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2906
2907                         if (stcb) {
2908                                 /* get off the assoc */
2909                                 chklist = stcb->asoc.local_auth_chunks;
2910                                 /* is there enough space? */
2911                                 size = sctp_auth_get_chklist_size(chklist);
2912                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2913                                         error = EINVAL;
2914                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2915                                 } else {
2916                                         /* copy in the chunks */
2917                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2918                                         sac->gauth_number_of_chunks = (uint32_t)size;
2919                                         *optsize = sizeof(struct sctp_authchunks) + size;
2920                                 }
2921                                 SCTP_TCB_UNLOCK(stcb);
2922                         } else {
2923                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2924                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2925                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
2926                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC))) {
2927                                         /* get off the endpoint */
2928                                         SCTP_INP_RLOCK(inp);
2929                                         chklist = inp->sctp_ep.local_auth_chunks;
2930                                         /* is there enough space? */
2931                                         size = sctp_auth_get_chklist_size(chklist);
2932                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2933                                                 error = EINVAL;
2934                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2935                                         } else {
2936                                                 /* copy in the chunks */
2937                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2938                                                 sac->gauth_number_of_chunks = (uint32_t)size;
2939                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2940                                         }
2941                                         SCTP_INP_RUNLOCK(inp);
2942                                 } else {
2943                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2944                                         error = EINVAL;
2945                                 }
2946                         }
2947                         break;
2948                 }
2949         case SCTP_PEER_AUTH_CHUNKS:
2950                 {
2951                         struct sctp_authchunks *sac;
2952                         sctp_auth_chklist_t *chklist = NULL;
2953                         size_t size = 0;
2954
2955                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2956                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2957
2958                         if (stcb) {
2959                                 /* get off the assoc */
2960                                 chklist = stcb->asoc.peer_auth_chunks;
2961                                 /* is there enough space? */
2962                                 size = sctp_auth_get_chklist_size(chklist);
2963                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2964                                         error = EINVAL;
2965                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2966                                 } else {
2967                                         /* copy in the chunks */
2968                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2969                                         sac->gauth_number_of_chunks = (uint32_t)size;
2970                                         *optsize = sizeof(struct sctp_authchunks) + size;
2971                                 }
2972                                 SCTP_TCB_UNLOCK(stcb);
2973                         } else {
2974                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2975                                 error = ENOENT;
2976                         }
2977                         break;
2978                 }
2979         case SCTP_EVENT:
2980                 {
2981                         struct sctp_event *event;
2982                         uint32_t event_type;
2983
2984                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2985                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2986
2987                         switch (event->se_type) {
2988                         case SCTP_ASSOC_CHANGE:
2989                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2990                                 break;
2991                         case SCTP_PEER_ADDR_CHANGE:
2992                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2993                                 break;
2994                         case SCTP_REMOTE_ERROR:
2995                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
2996                                 break;
2997                         case SCTP_SEND_FAILED:
2998                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
2999                                 break;
3000                         case SCTP_SHUTDOWN_EVENT:
3001                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3002                                 break;
3003                         case SCTP_ADAPTATION_INDICATION:
3004                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3005                                 break;
3006                         case SCTP_PARTIAL_DELIVERY_EVENT:
3007                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3008                                 break;
3009                         case SCTP_AUTHENTICATION_EVENT:
3010                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3011                                 break;
3012                         case SCTP_STREAM_RESET_EVENT:
3013                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3014                                 break;
3015                         case SCTP_SENDER_DRY_EVENT:
3016                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3017                                 break;
3018                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3019                                 event_type = 0;
3020                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3021                                 error = ENOTSUP;
3022                                 break;
3023                         case SCTP_ASSOC_RESET_EVENT:
3024                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3025                                 break;
3026                         case SCTP_STREAM_CHANGE_EVENT:
3027                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3028                                 break;
3029                         case SCTP_SEND_FAILED_EVENT:
3030                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3031                                 break;
3032                         default:
3033                                 event_type = 0;
3034                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3035                                 error = EINVAL;
3036                                 break;
3037                         }
3038                         if (event_type > 0) {
3039                                 if (stcb) {
3040                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3041                                 } else {
3042                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3043                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3044                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3045                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC))) {
3046                                                 SCTP_INP_RLOCK(inp);
3047                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3048                                                 SCTP_INP_RUNLOCK(inp);
3049                                         } else {
3050                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3051                                                 error = EINVAL;
3052                                         }
3053                                 }
3054                         }
3055                         if (stcb != NULL) {
3056                                 SCTP_TCB_UNLOCK(stcb);
3057                         }
3058                         if (error == 0) {
3059                                 *optsize = sizeof(struct sctp_event);
3060                         }
3061                         break;
3062                 }
3063         case SCTP_RECVRCVINFO:
3064                 if (*optsize < sizeof(int)) {
3065                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3066                         error = EINVAL;
3067                 } else {
3068                         SCTP_INP_RLOCK(inp);
3069                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3070                         SCTP_INP_RUNLOCK(inp);
3071                         *optsize = sizeof(int);
3072                 }
3073                 break;
3074         case SCTP_RECVNXTINFO:
3075                 if (*optsize < sizeof(int)) {
3076                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3077                         error = EINVAL;
3078                 } else {
3079                         SCTP_INP_RLOCK(inp);
3080                         *(int *)optval = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3081                         SCTP_INP_RUNLOCK(inp);
3082                         *optsize = sizeof(int);
3083                 }
3084                 break;
3085         case SCTP_DEFAULT_SNDINFO:
3086                 {
3087                         struct sctp_sndinfo *info;
3088
3089                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3090                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3091
3092                         if (stcb) {
3093                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3094                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3095                                 info->snd_flags &= 0xfff0;
3096                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3097                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3098                                 SCTP_TCB_UNLOCK(stcb);
3099                         } else {
3100                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3101                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3102                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3103                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC))) {
3104                                         SCTP_INP_RLOCK(inp);
3105                                         info->snd_sid = inp->def_send.sinfo_stream;
3106                                         info->snd_flags = inp->def_send.sinfo_flags;
3107                                         info->snd_flags &= 0xfff0;
3108                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3109                                         info->snd_context = inp->def_send.sinfo_context;
3110                                         SCTP_INP_RUNLOCK(inp);
3111                                 } else {
3112                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3113                                         error = EINVAL;
3114                                 }
3115                         }
3116                         if (error == 0) {
3117                                 *optsize = sizeof(struct sctp_sndinfo);
3118                         }
3119                         break;
3120                 }
3121         case SCTP_DEFAULT_PRINFO:
3122                 {
3123                         struct sctp_default_prinfo *info;
3124
3125                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3126                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3127
3128                         if (stcb) {
3129                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3130                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3131                                 SCTP_TCB_UNLOCK(stcb);
3132                         } else {
3133                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3134                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3135                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3136                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC))) {
3137                                         SCTP_INP_RLOCK(inp);
3138                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3139                                         info->pr_value = inp->def_send.sinfo_timetolive;
3140                                         SCTP_INP_RUNLOCK(inp);
3141                                 } else {
3142                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3143                                         error = EINVAL;
3144                                 }
3145                         }
3146                         if (error == 0) {
3147                                 *optsize = sizeof(struct sctp_default_prinfo);
3148                         }
3149                         break;
3150                 }
3151         case SCTP_PEER_ADDR_THLDS:
3152                 {
3153                         struct sctp_paddrthlds *thlds;
3154                         struct sctp_nets *net;
3155                         struct sockaddr *addr;
3156 #if defined(INET) && defined(INET6)
3157                         struct sockaddr_in sin_store;
3158 #endif
3159
3160                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3161                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3162
3163 #if defined(INET) && defined(INET6)
3164                         if (thlds->spt_address.ss_family == AF_INET6) {
3165                                 struct sockaddr_in6 *sin6;
3166
3167                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3168                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3169                                         in6_sin6_2_sin(&sin_store, sin6);
3170                                         addr = (struct sockaddr *)&sin_store;
3171                                 } else {
3172                                         addr = (struct sockaddr *)&thlds->spt_address;
3173                                 }
3174                         } else {
3175                                 addr = (struct sockaddr *)&thlds->spt_address;
3176                         }
3177 #else
3178                         addr = (struct sockaddr *)&thlds->spt_address;
3179 #endif
3180                         if (stcb != NULL) {
3181                                 net = sctp_findnet(stcb, addr);
3182                         } else {
3183                                 /*
3184                                  * We increment here since
3185                                  * sctp_findassociation_ep_addr() wil do a
3186                                  * decrement if it finds the stcb as long as
3187                                  * the locked tcb (last argument) is NOT a
3188                                  * TCB.. aka NULL.
3189                                  */
3190                                 net = NULL;
3191                                 SCTP_INP_INCR_REF(inp);
3192                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3193                                 if (stcb == NULL) {
3194                                         SCTP_INP_DECR_REF(inp);
3195                                 }
3196                         }
3197                         if ((stcb != NULL) && (net == NULL)) {
3198 #ifdef INET
3199                                 if (addr->sa_family == AF_INET) {
3200                                         struct sockaddr_in *sin;
3201
3202                                         sin = (struct sockaddr_in *)addr;
3203                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3204                                                 error = EINVAL;
3205                                                 SCTP_TCB_UNLOCK(stcb);
3206                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3207                                                 break;
3208                                         }
3209                                 } else
3210 #endif
3211 #ifdef INET6
3212                                 if (addr->sa_family == AF_INET6) {
3213                                         struct sockaddr_in6 *sin6;
3214
3215                                         sin6 = (struct sockaddr_in6 *)addr;
3216                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3217                                                 error = EINVAL;
3218                                                 SCTP_TCB_UNLOCK(stcb);
3219                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3220                                                 break;
3221                                         }
3222                                 } else
3223 #endif
3224                                 {
3225                                         error = EAFNOSUPPORT;
3226                                         SCTP_TCB_UNLOCK(stcb);
3227                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3228                                         break;
3229                                 }
3230                         }
3231
3232                         if (stcb != NULL) {
3233                                 if (net != NULL) {
3234                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3235                                         thlds->spt_pathpfthld = net->pf_threshold;
3236                                         thlds->spt_pathcpthld = 0xffff;
3237                                 } else {
3238                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3239                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3240                                         thlds->spt_pathcpthld = 0xffff;
3241                                 }
3242                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3243                                 SCTP_TCB_UNLOCK(stcb);
3244                         } else {
3245                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3246                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3247                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3248                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
3249                                         /* Use endpoint defaults */
3250                                         SCTP_INP_RLOCK(inp);
3251                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3252                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3253                                         thlds->spt_pathcpthld = 0xffff;
3254                                         SCTP_INP_RUNLOCK(inp);
3255                                 } else {
3256                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3257                                         error = EINVAL;
3258                                 }
3259                         }
3260                         if (error == 0) {
3261                                 *optsize = sizeof(struct sctp_paddrthlds);
3262                         }
3263                         break;
3264                 }
3265         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3266                 {
3267                         struct sctp_udpencaps *encaps;
3268                         struct sctp_nets *net;
3269                         struct sockaddr *addr;
3270 #if defined(INET) && defined(INET6)
3271                         struct sockaddr_in sin_store;
3272 #endif
3273
3274                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3275                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3276
3277 #if defined(INET) && defined(INET6)
3278                         if (encaps->sue_address.ss_family == AF_INET6) {
3279                                 struct sockaddr_in6 *sin6;
3280
3281                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3282                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3283                                         in6_sin6_2_sin(&sin_store, sin6);
3284                                         addr = (struct sockaddr *)&sin_store;
3285                                 } else {
3286                                         addr = (struct sockaddr *)&encaps->sue_address;
3287                                 }
3288                         } else {
3289                                 addr = (struct sockaddr *)&encaps->sue_address;
3290                         }
3291 #else
3292                         addr = (struct sockaddr *)&encaps->sue_address;
3293 #endif
3294                         if (stcb) {
3295                                 net = sctp_findnet(stcb, addr);
3296                         } else {
3297                                 /*
3298                                  * We increment here since
3299                                  * sctp_findassociation_ep_addr() wil do a
3300                                  * decrement if it finds the stcb as long as
3301                                  * the locked tcb (last argument) is NOT a
3302                                  * TCB.. aka NULL.
3303                                  */
3304                                 net = NULL;
3305                                 SCTP_INP_INCR_REF(inp);
3306                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3307                                 if (stcb == NULL) {
3308                                         SCTP_INP_DECR_REF(inp);
3309                                 }
3310                         }
3311                         if ((stcb != NULL) && (net == NULL)) {
3312 #ifdef INET
3313                                 if (addr->sa_family == AF_INET) {
3314                                         struct sockaddr_in *sin;
3315
3316                                         sin = (struct sockaddr_in *)addr;
3317                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3318                                                 error = EINVAL;
3319                                                 SCTP_TCB_UNLOCK(stcb);
3320                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3321                                                 break;
3322                                         }
3323                                 } else
3324 #endif
3325 #ifdef INET6
3326                                 if (addr->sa_family == AF_INET6) {
3327                                         struct sockaddr_in6 *sin6;
3328
3329                                         sin6 = (struct sockaddr_in6 *)addr;
3330                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3331                                                 error = EINVAL;
3332                                                 SCTP_TCB_UNLOCK(stcb);
3333                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3334                                                 break;
3335                                         }
3336                                 } else
3337 #endif
3338                                 {
3339                                         error = EAFNOSUPPORT;
3340                                         SCTP_TCB_UNLOCK(stcb);
3341                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3342                                         break;
3343                                 }
3344                         }
3345
3346                         if (stcb != NULL) {
3347                                 if (net) {
3348                                         encaps->sue_port = net->port;
3349                                 } else {
3350                                         encaps->sue_port = stcb->asoc.port;
3351                                 }
3352                                 SCTP_TCB_UNLOCK(stcb);
3353                         } else {
3354                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3355                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3356                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3357                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
3358                                         SCTP_INP_RLOCK(inp);
3359                                         encaps->sue_port = inp->sctp_ep.port;
3360                                         SCTP_INP_RUNLOCK(inp);
3361                                 } else {
3362                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3363                                         error = EINVAL;
3364                                 }
3365                         }
3366                         if (error == 0) {
3367                                 *optsize = sizeof(struct sctp_udpencaps);
3368                         }
3369                         break;
3370                 }
3371         case SCTP_ECN_SUPPORTED:
3372                 {
3373                         struct sctp_assoc_value *av;
3374
3375                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3376                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3377
3378                         if (stcb) {
3379                                 av->assoc_value = stcb->asoc.ecn_supported;
3380                                 SCTP_TCB_UNLOCK(stcb);
3381                         } else {
3382                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3383                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3384                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3385                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3386                                         SCTP_INP_RLOCK(inp);
3387                                         av->assoc_value = inp->ecn_supported;
3388                                         SCTP_INP_RUNLOCK(inp);
3389                                 } else {
3390                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3391                                         error = EINVAL;
3392                                 }
3393                         }
3394                         if (error == 0) {
3395                                 *optsize = sizeof(struct sctp_assoc_value);
3396                         }
3397                         break;
3398                 }
3399         case SCTP_PR_SUPPORTED:
3400                 {
3401                         struct sctp_assoc_value *av;
3402
3403                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3404                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3405
3406                         if (stcb) {
3407                                 av->assoc_value = stcb->asoc.prsctp_supported;
3408                                 SCTP_TCB_UNLOCK(stcb);
3409                         } else {
3410                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3411                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3412                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3413                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3414                                         SCTP_INP_RLOCK(inp);
3415                                         av->assoc_value = inp->prsctp_supported;
3416                                         SCTP_INP_RUNLOCK(inp);
3417                                 } else {
3418                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3419                                         error = EINVAL;
3420                                 }
3421                         }
3422                         if (error == 0) {
3423                                 *optsize = sizeof(struct sctp_assoc_value);
3424                         }
3425                         break;
3426                 }
3427         case SCTP_AUTH_SUPPORTED:
3428                 {
3429                         struct sctp_assoc_value *av;
3430
3431                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3432                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3433
3434                         if (stcb) {
3435                                 av->assoc_value = stcb->asoc.auth_supported;
3436                                 SCTP_TCB_UNLOCK(stcb);
3437                         } else {
3438                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3439                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3440                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3441                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3442                                         SCTP_INP_RLOCK(inp);
3443                                         av->assoc_value = inp->auth_supported;
3444                                         SCTP_INP_RUNLOCK(inp);
3445                                 } else {
3446                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3447                                         error = EINVAL;
3448                                 }
3449                         }
3450                         if (error == 0) {
3451                                 *optsize = sizeof(struct sctp_assoc_value);
3452                         }
3453                         break;
3454                 }
3455         case SCTP_ASCONF_SUPPORTED:
3456                 {
3457                         struct sctp_assoc_value *av;
3458
3459                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3460                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3461
3462                         if (stcb) {
3463                                 av->assoc_value = stcb->asoc.asconf_supported;
3464                                 SCTP_TCB_UNLOCK(stcb);
3465                         } else {
3466                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3467                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3468                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3469                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3470                                         SCTP_INP_RLOCK(inp);
3471                                         av->assoc_value = inp->asconf_supported;
3472                                         SCTP_INP_RUNLOCK(inp);
3473                                 } else {
3474                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3475                                         error = EINVAL;
3476                                 }
3477                         }
3478                         if (error == 0) {
3479                                 *optsize = sizeof(struct sctp_assoc_value);
3480                         }
3481                         break;
3482                 }
3483         case SCTP_RECONFIG_SUPPORTED:
3484                 {
3485                         struct sctp_assoc_value *av;
3486
3487                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3488                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3489
3490                         if (stcb) {
3491                                 av->assoc_value = stcb->asoc.reconfig_supported;
3492                                 SCTP_TCB_UNLOCK(stcb);
3493                         } else {
3494                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3495                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3496                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3497                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3498                                         SCTP_INP_RLOCK(inp);
3499                                         av->assoc_value = inp->reconfig_supported;
3500                                         SCTP_INP_RUNLOCK(inp);
3501                                 } else {
3502                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3503                                         error = EINVAL;
3504                                 }
3505                         }
3506                         if (error == 0) {
3507                                 *optsize = sizeof(struct sctp_assoc_value);
3508                         }
3509                         break;
3510                 }
3511         case SCTP_NRSACK_SUPPORTED:
3512                 {
3513                         struct sctp_assoc_value *av;
3514
3515                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3516                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3517
3518                         if (stcb) {
3519                                 av->assoc_value = stcb->asoc.nrsack_supported;
3520                                 SCTP_TCB_UNLOCK(stcb);
3521                         } else {
3522                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3523                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3524                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3525                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3526                                         SCTP_INP_RLOCK(inp);
3527                                         av->assoc_value = inp->nrsack_supported;
3528                                         SCTP_INP_RUNLOCK(inp);
3529                                 } else {
3530                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3531                                         error = EINVAL;
3532                                 }
3533                         }
3534                         if (error == 0) {
3535                                 *optsize = sizeof(struct sctp_assoc_value);
3536                         }
3537                         break;
3538                 }
3539         case SCTP_PKTDROP_SUPPORTED:
3540                 {
3541                         struct sctp_assoc_value *av;
3542
3543                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3544                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3545
3546                         if (stcb) {
3547                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3548                                 SCTP_TCB_UNLOCK(stcb);
3549                         } else {
3550                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3551                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3552                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3553                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3554                                         SCTP_INP_RLOCK(inp);
3555                                         av->assoc_value = inp->pktdrop_supported;
3556                                         SCTP_INP_RUNLOCK(inp);
3557                                 } else {
3558                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3559                                         error = EINVAL;
3560                                 }
3561                         }
3562                         if (error == 0) {
3563                                 *optsize = sizeof(struct sctp_assoc_value);
3564                         }
3565                         break;
3566                 }
3567         case SCTP_ENABLE_STREAM_RESET:
3568                 {
3569                         struct sctp_assoc_value *av;
3570
3571                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3572                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3573
3574                         if (stcb) {
3575                                 av->assoc_value = (uint32_t)stcb->asoc.local_strreset_support;
3576                                 SCTP_TCB_UNLOCK(stcb);
3577                         } else {
3578                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3579                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3580                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3581                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3582                                         SCTP_INP_RLOCK(inp);
3583                                         av->assoc_value = (uint32_t)inp->local_strreset_support;
3584                                         SCTP_INP_RUNLOCK(inp);
3585                                 } else {
3586                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3587                                         error = EINVAL;
3588                                 }
3589                         }
3590                         if (error == 0) {
3591                                 *optsize = sizeof(struct sctp_assoc_value);
3592                         }
3593                         break;
3594                 }
3595         case SCTP_PR_STREAM_STATUS:
3596                 {
3597                         struct sctp_prstatus *sprstat;
3598                         uint16_t sid;
3599                         uint16_t policy;
3600
3601                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3602                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3603
3604                         sid = sprstat->sprstat_sid;
3605                         policy = sprstat->sprstat_policy;
3606 #if defined(SCTP_DETAILED_STR_STATS)
3607                         if ((stcb != NULL) &&
3608                             (sid < stcb->asoc.streamoutcnt) &&
3609                             (policy != SCTP_PR_SCTP_NONE) &&
3610                             ((policy <= SCTP_PR_SCTP_MAX) ||
3611                             (policy == SCTP_PR_SCTP_ALL))) {
3612                                 if (policy == SCTP_PR_SCTP_ALL) {
3613                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3614                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3615                                 } else {
3616                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3617                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3618                                 }
3619 #else
3620                         if ((stcb != NULL) &&
3621                             (sid < stcb->asoc.streamoutcnt) &&
3622                             (policy == SCTP_PR_SCTP_ALL)) {
3623                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3624                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3625 #endif
3626                         } else {
3627                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3628                                 error = EINVAL;
3629                         }
3630                         if (stcb != NULL) {
3631                                 SCTP_TCB_UNLOCK(stcb);
3632                         }
3633                         if (error == 0) {
3634                                 *optsize = sizeof(struct sctp_prstatus);
3635                         }
3636                         break;
3637                 }
3638         case SCTP_PR_ASSOC_STATUS:
3639                 {
3640                         struct sctp_prstatus *sprstat;
3641                         uint16_t policy;
3642
3643                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3644                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3645
3646                         policy = sprstat->sprstat_policy;
3647                         if ((stcb != NULL) &&
3648                             (policy != SCTP_PR_SCTP_NONE) &&
3649                             ((policy <= SCTP_PR_SCTP_MAX) ||
3650                             (policy == SCTP_PR_SCTP_ALL))) {
3651                                 if (policy == SCTP_PR_SCTP_ALL) {
3652                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3653                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3654                                 } else {
3655                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3656                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3657                                 }
3658                         } else {
3659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3660                                 error = EINVAL;
3661                         }
3662                         if (stcb != NULL) {
3663                                 SCTP_TCB_UNLOCK(stcb);
3664                         }
3665                         if (error == 0) {
3666                                 *optsize = sizeof(struct sctp_prstatus);
3667                         }
3668                         break;
3669                 }
3670         case SCTP_MAX_CWND:
3671                 {
3672                         struct sctp_assoc_value *av;
3673
3674                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3675                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3676
3677                         if (stcb) {
3678                                 av->assoc_value = stcb->asoc.max_cwnd;
3679                                 SCTP_TCB_UNLOCK(stcb);
3680                         } else {
3681                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3682                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3683                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3684                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3685                                         SCTP_INP_RLOCK(inp);
3686                                         av->assoc_value = inp->max_cwnd;
3687                                         SCTP_INP_RUNLOCK(inp);
3688                                 } else {
3689                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3690                                         error = EINVAL;
3691                                 }
3692                         }
3693                         if (error == 0) {
3694                                 *optsize = sizeof(struct sctp_assoc_value);
3695                         }
3696                         break;
3697                 }
3698         default:
3699                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3700                 error = ENOPROTOOPT;
3701                 break;
3702         }                       /* end switch (sopt->sopt_name) */
3703         if (error) {
3704                 *optsize = 0;
3705         }
3706         return (error);
3707 }
3708
3709 static int
3710 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3711     void *p)
3712 {
3713         int error, set_opt;
3714         uint32_t *mopt;
3715         struct sctp_tcb *stcb = NULL;
3716         struct sctp_inpcb *inp = NULL;
3717         uint32_t vrf_id;
3718
3719         if (optval == NULL) {
3720                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3721                 return (EINVAL);
3722         }
3723         inp = (struct sctp_inpcb *)so->so_pcb;
3724         if (inp == NULL) {
3725                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3726                 return (EINVAL);
3727         }
3728         vrf_id = inp->def_vrf_id;
3729
3730         error = 0;
3731         switch (optname) {
3732         case SCTP_NODELAY:
3733         case SCTP_AUTOCLOSE:
3734         case SCTP_AUTO_ASCONF:
3735         case SCTP_EXPLICIT_EOR:
3736         case SCTP_DISABLE_FRAGMENTS:
3737         case SCTP_USE_EXT_RCVINFO:
3738         case SCTP_I_WANT_MAPPED_V4_ADDR:
3739                 /* copy in the option value */
3740                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3741                 set_opt = 0;
3742                 if (error)
3743                         break;
3744                 switch (optname) {
3745                 case SCTP_DISABLE_FRAGMENTS:
3746                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3747                         break;
3748                 case SCTP_AUTO_ASCONF:
3749                         /*
3750                          * NOTE: we don't really support this flag
3751                          */
3752                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3753                                 /* only valid for bound all sockets */
3754                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3755                                     (*mopt != 0)) {
3756                                         /* forbidden by admin */
3757                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3758                                         return (EPERM);
3759                                 }
3760                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3761                         } else {
3762                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3763                                 return (EINVAL);
3764                         }
3765                         break;
3766                 case SCTP_EXPLICIT_EOR:
3767                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3768                         break;
3769                 case SCTP_USE_EXT_RCVINFO:
3770                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3771                         break;
3772                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3773                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3774                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3775                         } else {
3776                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3777                                 return (EINVAL);
3778                         }
3779                         break;
3780                 case SCTP_NODELAY:
3781                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3782                         break;
3783                 case SCTP_AUTOCLOSE:
3784                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3785                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3786                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3787                                 return (EINVAL);
3788                         }
3789                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3790                         /*
3791                          * The value is in ticks. Note this does not effect
3792                          * old associations, only new ones.
3793                          */
3794                         inp->sctp_ep.auto_close_time = sctp_secs_to_ticks(*mopt);
3795                         break;
3796                 }
3797                 SCTP_INP_WLOCK(inp);
3798                 if (*mopt != 0) {
3799                         sctp_feature_on(inp, set_opt);
3800                 } else {
3801                         sctp_feature_off(inp, set_opt);
3802                 }
3803                 SCTP_INP_WUNLOCK(inp);
3804                 break;
3805         case SCTP_REUSE_PORT:
3806                 {
3807                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3808                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3809                                 /* Can't set it after we are bound */
3810                                 error = EINVAL;
3811                                 break;
3812                         }
3813                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3814                                 /* Can't do this for a 1-m socket */
3815                                 error = EINVAL;
3816                                 break;
3817                         }
3818                         if (optval)
3819                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3820                         else
3821                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3822                         break;
3823                 }
3824         case SCTP_PARTIAL_DELIVERY_POINT:
3825                 {
3826                         uint32_t *value;
3827
3828                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3829                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3830                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3831                                 error = EINVAL;
3832                                 break;
3833                         }
3834                         inp->partial_delivery_point = *value;
3835                         break;
3836                 }
3837         case SCTP_FRAGMENT_INTERLEAVE:
3838                 /* not yet until we re-write sctp_recvmsg() */
3839                 {
3840                         uint32_t *level;
3841
3842                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3843                         if (*level == SCTP_FRAG_LEVEL_2) {
3844                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3845                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3846                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3847                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3848                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3849                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3850                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3851                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3852
3853                         } else {
3854                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3855                                 error = EINVAL;
3856                         }
3857                         break;
3858                 }
3859         case SCTP_INTERLEAVING_SUPPORTED:
3860                 {
3861                         struct sctp_assoc_value *av;
3862
3863                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3864                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3865
3866                         if (stcb) {
3867                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3868                                 error = EINVAL;
3869                                 SCTP_TCB_UNLOCK(stcb);
3870                         } else {
3871                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3872                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3873                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3874                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
3875                                         SCTP_INP_WLOCK(inp);
3876                                         if (av->assoc_value == 0) {
3877                                                 inp->idata_supported = 0;
3878                                         } else {
3879                                                 if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) &&
3880                                                     (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS))) {
3881                                                         inp->idata_supported = 1;
3882                                                 } else {
3883                                                         /*
3884                                                          * Must have Frag
3885                                                          * interleave and
3886                                                          * stream interleave
3887                                                          * on
3888                                                          */
3889                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3890                                                         error = EINVAL;
3891                                                 }
3892                                         }
3893                                         SCTP_INP_WUNLOCK(inp);
3894                                 } else {
3895                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3896                                         error = EINVAL;
3897                                 }
3898                         }
3899                         break;
3900                 }
3901         case SCTP_CMT_ON_OFF:
3902                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3903                         struct sctp_assoc_value *av;
3904
3905                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3906                         if (av->assoc_value > SCTP_CMT_MAX) {
3907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3908                                 error = EINVAL;
3909                                 break;
3910                         }
3911                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3912                         if (stcb) {
3913                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3914                                 SCTP_TCB_UNLOCK(stcb);
3915                         } else {
3916                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3917                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3918                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3919                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3920                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3921                                         SCTP_INP_WLOCK(inp);
3922                                         inp->sctp_cmt_on_off = av->assoc_value;
3923                                         SCTP_INP_WUNLOCK(inp);
3924                                 }
3925                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3926                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3927                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3928                                         SCTP_INP_RLOCK(inp);
3929                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3930                                                 SCTP_TCB_LOCK(stcb);
3931                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3932                                                 SCTP_TCB_UNLOCK(stcb);
3933                                         }
3934                                         SCTP_INP_RUNLOCK(inp);
3935                                 }
3936                         }
3937                 } else {
3938                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3939                         error = ENOPROTOOPT;
3940                 }
3941                 break;
3942         case SCTP_PLUGGABLE_CC:
3943                 {
3944                         struct sctp_assoc_value *av;
3945                         struct sctp_nets *net;
3946
3947                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3948                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3949                             (av->assoc_value != SCTP_CC_HSTCP) &&
3950                             (av->assoc_value != SCTP_CC_HTCP) &&
3951                             (av->assoc_value != SCTP_CC_RTCC)) {
3952                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3953                                 error = EINVAL;
3954                                 break;
3955                         }
3956                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3957                         if (stcb) {
3958                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3959                                 stcb->asoc.congestion_control_module = av->assoc_value;
3960                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3961                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3962                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3963                                         }
3964                                 }
3965                                 SCTP_TCB_UNLOCK(stcb);
3966                         } else {
3967                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3968                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3969                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3970                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
3971                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
3972                                         SCTP_INP_WLOCK(inp);
3973                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3974                                         SCTP_INP_WUNLOCK(inp);
3975                                 }
3976                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
3977                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3978                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
3979                                         SCTP_INP_RLOCK(inp);
3980                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3981                                                 SCTP_TCB_LOCK(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                                         }
3991                                         SCTP_INP_RUNLOCK(inp);
3992                                 }
3993                         }
3994                         break;
3995                 }
3996         case SCTP_CC_OPTION:
3997                 {
3998                         struct sctp_cc_option *cc_opt;
3999
4000                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4001                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4002                         if (stcb == NULL) {
4003                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4004                                     (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC)) {
4005                                         SCTP_INP_RLOCK(inp);
4006                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4007                                                 SCTP_TCB_LOCK(stcb);
4008                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4009                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4010                                                 }
4011                                                 SCTP_TCB_UNLOCK(stcb);
4012                                         }
4013                                         SCTP_INP_RUNLOCK(inp);
4014                                 } else {
4015                                         error = EINVAL;
4016                                 }
4017                         } else {
4018                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4019                                         error = ENOTSUP;
4020                                 } else {
4021                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4022                                             cc_opt);
4023                                 }
4024                                 SCTP_TCB_UNLOCK(stcb);
4025                         }
4026                         break;
4027                 }
4028         case SCTP_PLUGGABLE_SS:
4029                 {
4030                         struct sctp_assoc_value *av;
4031
4032                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4033                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4034                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4035                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4036                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4037                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4038                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4039                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4040                                 error = EINVAL;
4041                                 break;
4042                         }
4043                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4044                         if (stcb) {
4045                                 SCTP_TCB_SEND_LOCK(stcb);
4046                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4047                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4048                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4049                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4050                                 SCTP_TCB_SEND_UNLOCK(stcb);
4051                                 SCTP_TCB_UNLOCK(stcb);
4052                         } else {
4053                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4054                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4055                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4056                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4057                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4058                                         SCTP_INP_WLOCK(inp);
4059                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4060                                         SCTP_INP_WUNLOCK(inp);
4061                                 }
4062                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4063                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4064                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4065                                         SCTP_INP_RLOCK(inp);
4066                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4067                                                 SCTP_TCB_LOCK(stcb);
4068                                                 SCTP_TCB_SEND_LOCK(stcb);
4069                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, true);
4070                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4071                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4072                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc);
4073                                                 SCTP_TCB_SEND_UNLOCK(stcb);
4074                                                 SCTP_TCB_UNLOCK(stcb);
4075                                         }
4076                                         SCTP_INP_RUNLOCK(inp);
4077                                 }
4078                         }
4079                         break;
4080                 }
4081         case SCTP_SS_VALUE:
4082                 {
4083                         struct sctp_stream_value *av;
4084
4085                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4086                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4087                         if (stcb) {
4088                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4089                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4090                                     av->stream_value) < 0)) {
4091                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4092                                         error = EINVAL;
4093                                 }
4094                                 SCTP_TCB_UNLOCK(stcb);
4095                         } else {
4096                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4097                                     (av->assoc_id == SCTP_CURRENT_ASSOC)) {
4098                                         SCTP_INP_RLOCK(inp);
4099                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4100                                                 SCTP_TCB_LOCK(stcb);
4101                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4102                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4103                                                             &stcb->asoc,
4104                                                             &stcb->asoc.strmout[av->stream_id],
4105                                                             av->stream_value);
4106                                                 }
4107                                                 SCTP_TCB_UNLOCK(stcb);
4108                                         }
4109                                         SCTP_INP_RUNLOCK(inp);
4110                                 } else {
4111                                         /*
4112                                          * Can't set stream value without
4113                                          * association
4114                                          */
4115                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4116                                         error = EINVAL;
4117                                 }
4118                         }
4119                         break;
4120                 }
4121         case SCTP_CLR_STAT_LOG:
4122                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4123                 error = EOPNOTSUPP;
4124                 break;
4125         case SCTP_CONTEXT:
4126                 {
4127                         struct sctp_assoc_value *av;
4128
4129                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4130                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4131
4132                         if (stcb) {
4133                                 stcb->asoc.context = av->assoc_value;
4134                                 SCTP_TCB_UNLOCK(stcb);
4135                         } else {
4136                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4137                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4138                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4139                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4140                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4141                                         SCTP_INP_WLOCK(inp);
4142                                         inp->sctp_context = av->assoc_value;
4143                                         SCTP_INP_WUNLOCK(inp);
4144                                 }
4145                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4146                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4147                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4148                                         SCTP_INP_RLOCK(inp);
4149                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4150                                                 SCTP_TCB_LOCK(stcb);
4151                                                 stcb->asoc.context = av->assoc_value;
4152                                                 SCTP_TCB_UNLOCK(stcb);
4153                                         }
4154                                         SCTP_INP_RUNLOCK(inp);
4155                                 }
4156                         }
4157                         break;
4158                 }
4159         case SCTP_VRF_ID:
4160                 {
4161                         uint32_t *default_vrfid;
4162
4163                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4164                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4165                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4166                                 error = EINVAL;
4167                                 break;
4168                         }
4169                         inp->def_vrf_id = *default_vrfid;
4170                         break;
4171                 }
4172         case SCTP_DEL_VRF_ID:
4173                 {
4174                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4175                         error = EOPNOTSUPP;
4176                         break;
4177                 }
4178         case SCTP_ADD_VRF_ID:
4179                 {
4180                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4181                         error = EOPNOTSUPP;
4182                         break;
4183                 }
4184         case SCTP_DELAYED_SACK:
4185                 {
4186                         struct sctp_sack_info *sack;
4187
4188                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4189                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4190                         if (sack->sack_delay) {
4191                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY) {
4192                                         error = EINVAL;
4193                                         if (stcb != NULL) {
4194                                                 SCTP_TCB_UNLOCK(stcb);
4195                                         }
4196                                         break;
4197                                 }
4198                         }
4199                         if (stcb) {
4200                                 if (sack->sack_delay) {
4201                                         stcb->asoc.delayed_ack = sack->sack_delay;
4202                                 }
4203                                 if (sack->sack_freq) {
4204                                         stcb->asoc.sack_freq = sack->sack_freq;
4205                                 }
4206                                 SCTP_TCB_UNLOCK(stcb);
4207                         } else {
4208                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4209                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4210                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4211                                     ((sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4212                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)))) {
4213                                         SCTP_INP_WLOCK(inp);
4214                                         if (sack->sack_delay) {
4215                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = sctp_msecs_to_ticks(sack->sack_delay);
4216                                         }
4217                                         if (sack->sack_freq) {
4218                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4219                                         }
4220                                         SCTP_INP_WUNLOCK(inp);
4221                                 }
4222                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4223                                     ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4224                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC))) {
4225                                         SCTP_INP_RLOCK(inp);
4226                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4227                                                 SCTP_TCB_LOCK(stcb);
4228                                                 if (sack->sack_delay) {
4229                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4230                                                 }
4231                                                 if (sack->sack_freq) {
4232                                                         stcb->asoc.sack_freq = sack->sack_freq;
4233                                                 }
4234                                                 SCTP_TCB_UNLOCK(stcb);
4235                                         }
4236                                         SCTP_INP_RUNLOCK(inp);
4237                                 }
4238                         }
4239                         break;
4240                 }
4241         case SCTP_AUTH_CHUNK:
4242                 {
4243                         struct sctp_authchunk *sauth;
4244
4245                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4246
4247                         SCTP_INP_WLOCK(inp);
4248                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4249                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4250                                 error = EINVAL;
4251                         } else {
4252                                 inp->auth_supported = 1;
4253                         }
4254                         SCTP_INP_WUNLOCK(inp);
4255                         break;
4256                 }
4257         case SCTP_AUTH_KEY:
4258                 {
4259                         struct sctp_authkey *sca;
4260                         struct sctp_keyhead *shared_keys;
4261                         sctp_sharedkey_t *shared_key;
4262                         sctp_key_t *key = NULL;
4263                         size_t size;
4264
4265                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4266                         if (sca->sca_keylength == 0) {
4267                                 size = optsize - sizeof(struct sctp_authkey);
4268                         } else {
4269                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4270                                         size = sca->sca_keylength;
4271                                 } else {
4272                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4273                                         error = EINVAL;
4274                                         break;
4275                                 }
4276                         }
4277                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4278
4279                         if (stcb) {
4280                                 shared_keys = &stcb->asoc.shared_keys;
4281                                 /* clear the cached keys for this key id */
4282                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4283                                 /*
4284                                  * create the new shared key and
4285                                  * insert/replace it
4286                                  */
4287                                 if (size > 0) {
4288                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4289                                         if (key == NULL) {
4290                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4291                                                 error = ENOMEM;
4292                                                 SCTP_TCB_UNLOCK(stcb);
4293                                                 break;
4294                                         }
4295                                 }
4296                                 shared_key = sctp_alloc_sharedkey();
4297                                 if (shared_key == NULL) {
4298                                         sctp_free_key(key);
4299                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4300                                         error = ENOMEM;
4301                                         SCTP_TCB_UNLOCK(stcb);
4302                                         break;
4303                                 }
4304                                 shared_key->key = key;
4305                                 shared_key->keyid = sca->sca_keynumber;
4306                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4307                                 SCTP_TCB_UNLOCK(stcb);
4308                         } else {
4309                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4310                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4311                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4312                                     ((sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4313                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)))) {
4314                                         SCTP_INP_WLOCK(inp);
4315                                         shared_keys = &inp->sctp_ep.shared_keys;
4316                                         /*
4317                                          * clear the cached keys on all
4318                                          * assocs for this key id
4319                                          */
4320                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4321                                         /*
4322                                          * create the new shared key and
4323                                          * insert/replace it
4324                                          */
4325                                         if (size > 0) {
4326                                                 key = sctp_set_key(sca->sca_key, (uint32_t)size);
4327                                                 if (key == NULL) {
4328                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4329                                                         error = ENOMEM;
4330                                                         SCTP_INP_WUNLOCK(inp);
4331                                                         break;
4332                                                 }
4333                                         }
4334                                         shared_key = sctp_alloc_sharedkey();
4335                                         if (shared_key == NULL) {
4336                                                 sctp_free_key(key);
4337                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4338                                                 error = ENOMEM;
4339                                                 SCTP_INP_WUNLOCK(inp);
4340                                                 break;
4341                                         }
4342                                         shared_key->key = key;
4343                                         shared_key->keyid = sca->sca_keynumber;
4344                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4345                                         SCTP_INP_WUNLOCK(inp);
4346                                 }
4347                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4348                                     ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4349                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC))) {
4350                                         SCTP_INP_RLOCK(inp);
4351                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4352                                                 SCTP_TCB_LOCK(stcb);
4353                                                 shared_keys = &stcb->asoc.shared_keys;
4354                                                 /*
4355                                                  * clear the cached keys for
4356                                                  * this key id
4357                                                  */
4358                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4359                                                 /*
4360                                                  * create the new shared key
4361                                                  * and insert/replace it
4362                                                  */
4363                                                 if (size > 0) {
4364                                                         key = sctp_set_key(sca->sca_key, (uint32_t)size);
4365                                                         if (key == NULL) {
4366                                                                 SCTP_TCB_UNLOCK(stcb);
4367                                                                 continue;
4368                                                         }
4369                                                 }
4370                                                 shared_key = sctp_alloc_sharedkey();
4371                                                 if (shared_key == NULL) {
4372                                                         sctp_free_key(key);
4373                                                         SCTP_TCB_UNLOCK(stcb);
4374                                                         continue;
4375                                                 }
4376                                                 shared_key->key = key;
4377                                                 shared_key->keyid = sca->sca_keynumber;
4378                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4379                                                 SCTP_TCB_UNLOCK(stcb);
4380                                         }
4381                                         SCTP_INP_RUNLOCK(inp);
4382                                 }
4383                         }
4384                         break;
4385                 }
4386         case SCTP_HMAC_IDENT:
4387                 {
4388                         struct sctp_hmacalgo *shmac;
4389                         sctp_hmaclist_t *hmaclist;
4390                         uint16_t hmacid;
4391                         uint32_t i;
4392
4393                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4394                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4395                             (shmac->shmac_number_of_idents > 0xffff)) {
4396                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4397                                 error = EINVAL;
4398                                 break;
4399                         }
4400
4401                         hmaclist = sctp_alloc_hmaclist((uint16_t)shmac->shmac_number_of_idents);
4402                         if (hmaclist == NULL) {
4403                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4404                                 error = ENOMEM;
4405                                 break;
4406                         }
4407                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4408                                 hmacid = shmac->shmac_idents[i];
4409                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4410                                          /* invalid HMACs were found */ ;
4411                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4412                                         error = EINVAL;
4413                                         sctp_free_hmaclist(hmaclist);
4414                                         goto sctp_set_hmac_done;
4415                                 }
4416                         }
4417                         for (i = 0; i < hmaclist->num_algo; i++) {
4418                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4419                                         /* already in list */
4420                                         break;
4421                                 }
4422                         }
4423                         if (i == hmaclist->num_algo) {
4424                                 /* not found in list */
4425                                 sctp_free_hmaclist(hmaclist);
4426                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4427                                 error = EINVAL;
4428                                 break;
4429                         }
4430                         /* set it on the endpoint */
4431                         SCTP_INP_WLOCK(inp);
4432                         if (inp->sctp_ep.local_hmacs)
4433                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4434                         inp->sctp_ep.local_hmacs = hmaclist;
4435                         SCTP_INP_WUNLOCK(inp);
4436         sctp_set_hmac_done:
4437                         break;
4438                 }
4439         case SCTP_AUTH_ACTIVE_KEY:
4440                 {
4441                         struct sctp_authkeyid *scact;
4442
4443                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4444                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4445
4446                         /* set the active key on the right place */
4447                         if (stcb) {
4448                                 /* set the active key on the assoc */
4449                                 if (sctp_auth_setactivekey(stcb,
4450                                     scact->scact_keynumber)) {
4451                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4452                                             SCTP_FROM_SCTP_USRREQ,
4453                                             EINVAL);
4454                                         error = EINVAL;
4455                                 }
4456                                 SCTP_TCB_UNLOCK(stcb);
4457                         } else {
4458                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4459                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4460                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4461                                     ((scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4462                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4463                                         SCTP_INP_WLOCK(inp);
4464                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4465                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4466                                                 error = EINVAL;
4467                                         }
4468                                         SCTP_INP_WUNLOCK(inp);
4469                                 }
4470                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4471                                     ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4472                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC))) {
4473                                         SCTP_INP_RLOCK(inp);
4474                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4475                                                 SCTP_TCB_LOCK(stcb);
4476                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4477                                                 SCTP_TCB_UNLOCK(stcb);
4478                                         }
4479                                         SCTP_INP_RUNLOCK(inp);
4480                                 }
4481                         }
4482                         break;
4483                 }
4484         case SCTP_AUTH_DELETE_KEY:
4485                 {
4486                         struct sctp_authkeyid *scdel;
4487
4488                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4489                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4490
4491                         /* delete the key from the right place */
4492                         if (stcb) {
4493                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4494                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4495                                         error = EINVAL;
4496                                 }
4497                                 SCTP_TCB_UNLOCK(stcb);
4498                         } else {
4499                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4500                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4501                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4502                                     ((scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4503                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4504                                         SCTP_INP_WLOCK(inp);
4505                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4506                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4507                                                 error = EINVAL;
4508                                         }
4509                                         SCTP_INP_WUNLOCK(inp);
4510                                 }
4511                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4512                                     ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4513                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC))) {
4514                                         SCTP_INP_RLOCK(inp);
4515                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4516                                                 SCTP_TCB_LOCK(stcb);
4517                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4518                                                 SCTP_TCB_UNLOCK(stcb);
4519                                         }
4520                                         SCTP_INP_RUNLOCK(inp);
4521                                 }
4522                         }
4523                         break;
4524                 }
4525         case SCTP_AUTH_DEACTIVATE_KEY:
4526                 {
4527                         struct sctp_authkeyid *keyid;
4528
4529                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4530                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4531
4532                         /* deactivate the key from the right place */
4533                         if (stcb) {
4534                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4535                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4536                                         error = EINVAL;
4537                                 }
4538                                 SCTP_TCB_UNLOCK(stcb);
4539                         } else {
4540                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4541                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4542                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4543                                     ((keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4544                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)))) {
4545                                         SCTP_INP_WLOCK(inp);
4546                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4547                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4548                                                 error = EINVAL;
4549                                         }
4550                                         SCTP_INP_WUNLOCK(inp);
4551                                 }
4552                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4553                                     ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4554                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC))) {
4555                                         SCTP_INP_RLOCK(inp);
4556                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4557                                                 SCTP_TCB_LOCK(stcb);
4558                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4559                                                 SCTP_TCB_UNLOCK(stcb);
4560                                         }
4561                                         SCTP_INP_RUNLOCK(inp);
4562                                 }
4563                         }
4564                         break;
4565                 }
4566         case SCTP_ENABLE_STREAM_RESET:
4567                 {
4568                         struct sctp_assoc_value *av;
4569
4570                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4571                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4572                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4573                                 error = EINVAL;
4574                                 break;
4575                         }
4576                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4577                         if (stcb) {
4578                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4579                                 SCTP_TCB_UNLOCK(stcb);
4580                         } else {
4581                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4582                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4583                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4584                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4585                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4586                                         SCTP_INP_WLOCK(inp);
4587                                         inp->local_strreset_support = (uint8_t)av->assoc_value;
4588                                         SCTP_INP_WUNLOCK(inp);
4589                                 }
4590                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4591                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4592                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4593                                         SCTP_INP_RLOCK(inp);
4594                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4595                                                 SCTP_TCB_LOCK(stcb);
4596                                                 stcb->asoc.local_strreset_support = (uint8_t)av->assoc_value;
4597                                                 SCTP_TCB_UNLOCK(stcb);
4598                                         }
4599                                         SCTP_INP_RUNLOCK(inp);
4600                                 }
4601                         }
4602                         break;
4603                 }
4604         case SCTP_RESET_STREAMS:
4605                 {
4606                         struct sctp_reset_streams *strrst;
4607                         int i, send_out = 0;
4608                         int send_in = 0;
4609
4610                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4611                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4612                         if (stcb == NULL) {
4613                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4614                                 error = ENOENT;
4615                                 break;
4616                         }
4617                         if (stcb->asoc.reconfig_supported == 0) {
4618                                 /*
4619                                  * Peer does not support the chunk type.
4620                                  */
4621                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4622                                 error = EOPNOTSUPP;
4623                                 SCTP_TCB_UNLOCK(stcb);
4624                                 break;
4625                         }
4626                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4627                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4628                                 error = EINVAL;
4629                                 SCTP_TCB_UNLOCK(stcb);
4630                                 break;
4631                         }
4632                         if (sizeof(struct sctp_reset_streams) +
4633                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4634                                 error = EINVAL;
4635                                 SCTP_TCB_UNLOCK(stcb);
4636                                 break;
4637                         }
4638                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4639                                 send_in = 1;
4640                                 if (stcb->asoc.stream_reset_outstanding) {
4641                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4642                                         error = EALREADY;
4643                                         SCTP_TCB_UNLOCK(stcb);
4644                                         break;
4645                                 }
4646                         }
4647                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4648                                 send_out = 1;
4649                         }
4650                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4651                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4652                                 error = ENOMEM;
4653                                 SCTP_TCB_UNLOCK(stcb);
4654                                 break;
4655                         }
4656                         if ((send_in == 0) && (send_out == 0)) {
4657                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4658                                 error = EINVAL;
4659                                 SCTP_TCB_UNLOCK(stcb);
4660                                 break;
4661                         }
4662                         for (i = 0; i < strrst->srs_number_streams; i++) {
4663                                 if ((send_in) &&
4664                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamincnt)) {
4665                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4666                                         error = EINVAL;
4667                                         break;
4668                                 }
4669                                 if ((send_out) &&
4670                                     (strrst->srs_stream_list[i] >= stcb->asoc.streamoutcnt)) {
4671                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4672                                         error = EINVAL;
4673                                         break;
4674                                 }
4675                         }
4676                         if (error) {
4677                                 SCTP_TCB_UNLOCK(stcb);
4678                                 break;
4679                         }
4680                         if (send_out) {
4681                                 int cnt;
4682                                 uint16_t strm;
4683
4684                                 if (strrst->srs_number_streams) {
4685                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4686                                                 strm = strrst->srs_stream_list[i];
4687                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4688                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4689                                                         cnt++;
4690                                                 }
4691                                         }
4692                                 } else {
4693                                         /* Its all */
4694                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4695                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4696                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4697                                                         cnt++;
4698                                                 }
4699                                         }
4700                                 }
4701                         }
4702                         if (send_in) {
4703                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4704                                     strrst->srs_stream_list,
4705                                     send_in, 0, 0, 0, 0, 0);
4706                         } else {
4707                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4708                         }
4709                         if (error == 0) {
4710                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4711                         } else {
4712                                 /*
4713                                  * For outgoing streams don't report any
4714                                  * problems in sending the request to the
4715                                  * application. XXX: Double check resetting
4716                                  * incoming streams.
4717                                  */
4718                                 error = 0;
4719                         }
4720                         SCTP_TCB_UNLOCK(stcb);
4721                         break;
4722                 }
4723         case SCTP_ADD_STREAMS:
4724                 {
4725                         struct sctp_add_streams *stradd;
4726                         uint8_t addstream = 0;
4727                         uint16_t add_o_strmcnt = 0;
4728                         uint16_t add_i_strmcnt = 0;
4729
4730                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4731                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4732                         if (stcb == NULL) {
4733                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4734                                 error = ENOENT;
4735                                 break;
4736                         }
4737                         if (stcb->asoc.reconfig_supported == 0) {
4738                                 /*
4739                                  * Peer does not support the chunk type.
4740                                  */
4741                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4742                                 error = EOPNOTSUPP;
4743                                 SCTP_TCB_UNLOCK(stcb);
4744                                 break;
4745                         }
4746                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4747                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4748                                 error = EINVAL;
4749                                 SCTP_TCB_UNLOCK(stcb);
4750                                 break;
4751                         }
4752                         if (stcb->asoc.stream_reset_outstanding) {
4753                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4754                                 error = EALREADY;
4755                                 SCTP_TCB_UNLOCK(stcb);
4756                                 break;
4757                         }
4758                         if ((stradd->sas_outstrms == 0) &&
4759                             (stradd->sas_instrms == 0)) {
4760                                 error = EINVAL;
4761                                 goto skip_stuff;
4762                         }
4763                         if (stradd->sas_outstrms) {
4764                                 addstream = 1;
4765                                 /* We allocate here */
4766                                 add_o_strmcnt = stradd->sas_outstrms;
4767                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4768                                         /* You can't have more than 64k */
4769                                         error = EINVAL;
4770                                         goto skip_stuff;
4771                                 }
4772                         }
4773                         if (stradd->sas_instrms) {
4774                                 int cnt;
4775
4776                                 addstream |= 2;
4777                                 /*
4778                                  * We allocate inside
4779                                  * sctp_send_str_reset_req()
4780                                  */
4781                                 add_i_strmcnt = stradd->sas_instrms;
4782                                 cnt = add_i_strmcnt;
4783                                 cnt += stcb->asoc.streamincnt;
4784                                 if (cnt > 0x0000ffff) {
4785                                         /* You can't have more than 64k */
4786                                         error = EINVAL;
4787                                         goto skip_stuff;
4788                                 }
4789                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4790                                         /* More than you are allowed */
4791                                         error = EINVAL;
4792                                         goto skip_stuff;
4793                                 }
4794                         }
4795                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4796                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4797         skip_stuff:
4798                         SCTP_TCB_UNLOCK(stcb);
4799                         break;
4800                 }
4801         case SCTP_RESET_ASSOC:
4802                 {
4803                         int i;
4804                         uint32_t *value;
4805
4806                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4807                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t)*value);
4808                         if (stcb == NULL) {
4809                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4810                                 error = ENOENT;
4811                                 break;
4812                         }
4813                         if (stcb->asoc.reconfig_supported == 0) {
4814                                 /*
4815                                  * Peer does not support the chunk type.
4816                                  */
4817                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4818                                 error = EOPNOTSUPP;
4819                                 SCTP_TCB_UNLOCK(stcb);
4820                                 break;
4821                         }
4822                         if (SCTP_GET_STATE(stcb) != SCTP_STATE_OPEN) {
4823                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4824                                 error = EINVAL;
4825                                 SCTP_TCB_UNLOCK(stcb);
4826                                 break;
4827                         }
4828                         if (stcb->asoc.stream_reset_outstanding) {
4829                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4830                                 error = EALREADY;
4831                                 SCTP_TCB_UNLOCK(stcb);
4832                                 break;
4833                         }
4834                         /*
4835                          * Is there any data pending in the send or sent
4836                          * queues?
4837                          */
4838                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4839                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4840                 busy_out:
4841                                 error = EBUSY;
4842                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4843                                 SCTP_TCB_UNLOCK(stcb);
4844                                 break;
4845                         }
4846                         /* Do any streams have data queued? */
4847                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4848                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4849                                         goto busy_out;
4850                                 }
4851                         }
4852                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4853                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4854                         SCTP_TCB_UNLOCK(stcb);
4855                         break;
4856                 }
4857         case SCTP_CONNECT_X:
4858                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4859                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4860                         error = EINVAL;
4861                         break;
4862                 }
4863                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4864                 break;
4865         case SCTP_CONNECT_X_DELAYED:
4866                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4867                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4868                         error = EINVAL;
4869                         break;
4870                 }
4871                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4872                 break;
4873         case SCTP_CONNECT_X_COMPLETE:
4874                 {
4875                         struct sockaddr *sa;
4876
4877                         /* FIXME MT: check correct? */
4878                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4879
4880                         /* find tcb */
4881                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4882                                 SCTP_INP_RLOCK(inp);
4883                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4884                                 if (stcb) {
4885                                         SCTP_TCB_LOCK(stcb);
4886                                 }
4887                                 SCTP_INP_RUNLOCK(inp);
4888                         } else {
4889                                 /*
4890                                  * We increment here since
4891                                  * sctp_findassociation_ep_addr() wil do a
4892                                  * decrement if it finds the stcb as long as
4893                                  * the locked tcb (last argument) is NOT a
4894                                  * TCB.. aka NULL.
4895                                  */
4896                                 SCTP_INP_INCR_REF(inp);
4897                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4898                                 if (stcb == NULL) {
4899                                         SCTP_INP_DECR_REF(inp);
4900                                 }
4901                         }
4902
4903                         if (stcb == NULL) {
4904                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4905                                 error = ENOENT;
4906                                 break;
4907                         }
4908                         if (stcb->asoc.delayed_connection == 1) {
4909                                 stcb->asoc.delayed_connection = 0;
4910                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4911                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4912                                     stcb->asoc.primary_destination,
4913                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4914                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4915                         } else {
4916                                 /*
4917                                  * already expired or did not use delayed
4918                                  * connectx
4919                                  */
4920                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4921                                 error = EALREADY;
4922                         }
4923                         SCTP_TCB_UNLOCK(stcb);
4924                         break;
4925                 }
4926         case SCTP_MAX_BURST:
4927                 {
4928                         struct sctp_assoc_value *av;
4929
4930                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4931                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4932
4933                         if (stcb) {
4934                                 stcb->asoc.max_burst = av->assoc_value;
4935                                 SCTP_TCB_UNLOCK(stcb);
4936                         } else {
4937                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4938                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4939                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4940                                     ((av->assoc_id == SCTP_FUTURE_ASSOC) ||
4941                                     (av->assoc_id == SCTP_ALL_ASSOC)))) {
4942                                         SCTP_INP_WLOCK(inp);
4943                                         inp->sctp_ep.max_burst = av->assoc_value;
4944                                         SCTP_INP_WUNLOCK(inp);
4945                                 }
4946                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4947                                     ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4948                                     (av->assoc_id == SCTP_ALL_ASSOC))) {
4949                                         SCTP_INP_RLOCK(inp);
4950                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4951                                                 SCTP_TCB_LOCK(stcb);
4952                                                 stcb->asoc.max_burst = av->assoc_value;
4953                                                 SCTP_TCB_UNLOCK(stcb);
4954                                         }
4955                                         SCTP_INP_RUNLOCK(inp);
4956                                 }
4957                         }
4958                         break;
4959                 }
4960         case SCTP_MAXSEG:
4961                 {
4962                         struct sctp_assoc_value *av;
4963                         int ovh;
4964
4965                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4966                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4967
4968                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4969                                 ovh = SCTP_MED_OVERHEAD;
4970                         } else {
4971                                 ovh = SCTP_MED_V4_OVERHEAD;
4972                         }
4973                         if (stcb) {
4974                                 if (av->assoc_value) {
4975                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4976                                 } else {
4977                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4978                                 }
4979                                 SCTP_TCB_UNLOCK(stcb);
4980                         } else {
4981                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4982                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4983                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
4984                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
4985                                         SCTP_INP_WLOCK(inp);
4986                                         /*
4987                                          * FIXME MT: I think this is not in
4988                                          * tune with the API ID
4989                                          */
4990                                         if (av->assoc_value) {
4991                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4992                                         } else {
4993                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4994                                         }
4995                                         SCTP_INP_WUNLOCK(inp);
4996                                 } else {
4997                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4998                                         error = EINVAL;
4999                                 }
5000                         }
5001                         break;
5002                 }
5003         case SCTP_EVENTS:
5004                 {
5005                         struct sctp_event_subscribe *events;
5006
5007                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
5008
5009                         SCTP_INP_WLOCK(inp);
5010                         if (events->sctp_data_io_event) {
5011                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5012                         } else {
5013                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
5014                         }
5015
5016                         if (events->sctp_association_event) {
5017                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5018                         } else {
5019                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5020                         }
5021
5022                         if (events->sctp_address_event) {
5023                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5024                         } else {
5025                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
5026                         }
5027
5028                         if (events->sctp_send_failure_event) {
5029                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5030                         } else {
5031                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5032                         }
5033
5034                         if (events->sctp_peer_error_event) {
5035                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5036                         } else {
5037                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
5038                         }
5039
5040                         if (events->sctp_shutdown_event) {
5041                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5042                         } else {
5043                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5044                         }
5045
5046                         if (events->sctp_partial_delivery_event) {
5047                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5048                         } else {
5049                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5050                         }
5051
5052                         if (events->sctp_adaptation_layer_event) {
5053                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5054                         } else {
5055                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5056                         }
5057
5058                         if (events->sctp_authentication_event) {
5059                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5060                         } else {
5061                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5062                         }
5063
5064                         if (events->sctp_sender_dry_event) {
5065                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5066                         } else {
5067                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5068                         }
5069
5070                         if (events->sctp_stream_reset_event) {
5071                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5072                         } else {
5073                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5074                         }
5075                         SCTP_INP_WUNLOCK(inp);
5076
5077                         SCTP_INP_RLOCK(inp);
5078                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5079                                 SCTP_TCB_LOCK(stcb);
5080                                 if (events->sctp_association_event) {
5081                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5082                                 } else {
5083                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5084                                 }
5085                                 if (events->sctp_address_event) {
5086                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5087                                 } else {
5088                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5089                                 }
5090                                 if (events->sctp_send_failure_event) {
5091                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5092                                 } else {
5093                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5094                                 }
5095                                 if (events->sctp_peer_error_event) {
5096                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5097                                 } else {
5098                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5099                                 }
5100                                 if (events->sctp_shutdown_event) {
5101                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5102                                 } else {
5103                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5104                                 }
5105                                 if (events->sctp_partial_delivery_event) {
5106                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5107                                 } else {
5108                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5109                                 }
5110                                 if (events->sctp_adaptation_layer_event) {
5111                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5112                                 } else {
5113                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5114                                 }
5115                                 if (events->sctp_authentication_event) {
5116                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5117                                 } else {
5118                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5119                                 }
5120                                 if (events->sctp_sender_dry_event) {
5121                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5122                                 } else {
5123                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5124                                 }
5125                                 if (events->sctp_stream_reset_event) {
5126                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5127                                 } else {
5128                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5129                                 }
5130                                 SCTP_TCB_UNLOCK(stcb);
5131                         }
5132                         /*
5133                          * Send up the sender dry event only for 1-to-1
5134                          * style sockets.
5135                          */
5136                         if (events->sctp_sender_dry_event) {
5137                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5138                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5139                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5140                                         if (stcb) {
5141                                                 SCTP_TCB_LOCK(stcb);
5142                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5143                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5144                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5145                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5146                                                 }
5147                                                 SCTP_TCB_UNLOCK(stcb);
5148                                         }
5149                                 }
5150                         }
5151                         SCTP_INP_RUNLOCK(inp);
5152                         break;
5153                 }
5154         case SCTP_ADAPTATION_LAYER:
5155                 {
5156                         struct sctp_setadaptation *adap_bits;
5157
5158                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5159                         SCTP_INP_WLOCK(inp);
5160                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5161                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5162                         SCTP_INP_WUNLOCK(inp);
5163                         break;
5164                 }
5165 #ifdef SCTP_DEBUG
5166         case SCTP_SET_INITIAL_DBG_SEQ:
5167                 {
5168                         uint32_t *vvv;
5169
5170                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5171                         SCTP_INP_WLOCK(inp);
5172                         inp->sctp_ep.initial_sequence_debug = *vvv;
5173                         SCTP_INP_WUNLOCK(inp);
5174                         break;
5175                 }
5176 #endif
5177         case SCTP_DEFAULT_SEND_PARAM:
5178                 {
5179                         struct sctp_sndrcvinfo *s_info;
5180
5181                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5182                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5183
5184                         if (stcb) {
5185                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5186                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5187                                 } else {
5188                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5189                                         error = EINVAL;
5190                                 }
5191                                 SCTP_TCB_UNLOCK(stcb);
5192                         } else {
5193                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5194                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5195                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5196                                     ((s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5197                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)))) {
5198                                         SCTP_INP_WLOCK(inp);
5199                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5200                                         SCTP_INP_WUNLOCK(inp);
5201                                 }
5202                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5203                                     ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5204                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC))) {
5205                                         SCTP_INP_RLOCK(inp);
5206                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5207                                                 SCTP_TCB_LOCK(stcb);
5208                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5209                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5210                                                 }
5211                                                 SCTP_TCB_UNLOCK(stcb);
5212                                         }
5213                                         SCTP_INP_RUNLOCK(inp);
5214                                 }
5215                         }
5216                         break;
5217                 }
5218         case SCTP_PEER_ADDR_PARAMS:
5219                 {
5220                         struct sctp_paddrparams *paddrp;
5221                         struct sctp_nets *net;
5222                         struct sockaddr *addr;
5223 #if defined(INET) && defined(INET6)
5224                         struct sockaddr_in sin_store;
5225 #endif
5226
5227                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5228                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5229
5230 #if defined(INET) && defined(INET6)
5231                         if (paddrp->spp_address.ss_family == AF_INET6) {
5232                                 struct sockaddr_in6 *sin6;
5233
5234                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5235                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5236                                         in6_sin6_2_sin(&sin_store, sin6);
5237                                         addr = (struct sockaddr *)&sin_store;
5238                                 } else {
5239                                         addr = (struct sockaddr *)&paddrp->spp_address;
5240                                 }
5241                         } else {
5242                                 addr = (struct sockaddr *)&paddrp->spp_address;
5243                         }
5244 #else
5245                         addr = (struct sockaddr *)&paddrp->spp_address;
5246 #endif
5247                         if (stcb != NULL) {
5248                                 net = sctp_findnet(stcb, addr);
5249                         } else {
5250                                 /*
5251                                  * We increment here since
5252                                  * sctp_findassociation_ep_addr() wil do a
5253                                  * decrement if it finds the stcb as long as
5254                                  * the locked tcb (last argument) is NOT a
5255                                  * TCB.. aka NULL.
5256                                  */
5257                                 net = NULL;
5258                                 SCTP_INP_INCR_REF(inp);
5259                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5260                                     &net, NULL, NULL);
5261                                 if (stcb == NULL) {
5262                                         SCTP_INP_DECR_REF(inp);
5263                                 }
5264                         }
5265                         if ((stcb != NULL) && (net == NULL)) {
5266 #ifdef INET
5267                                 if (addr->sa_family == AF_INET) {
5268                                         struct sockaddr_in *sin;
5269
5270                                         sin = (struct sockaddr_in *)addr;
5271                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5272                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5273                                                 SCTP_TCB_UNLOCK(stcb);
5274                                                 error = EINVAL;
5275                                                 break;
5276                                         }
5277                                 } else
5278 #endif
5279 #ifdef INET6
5280                                 if (addr->sa_family == AF_INET6) {
5281                                         struct sockaddr_in6 *sin6;
5282
5283                                         sin6 = (struct sockaddr_in6 *)addr;
5284                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5285                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5286                                                 SCTP_TCB_UNLOCK(stcb);
5287                                                 error = EINVAL;
5288                                                 break;
5289                                         }
5290                                 } else
5291 #endif
5292                                 {
5293                                         error = EAFNOSUPPORT;
5294                                         SCTP_TCB_UNLOCK(stcb);
5295                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5296                                         break;
5297                                 }
5298                         }
5299                         /* sanity checks */
5300                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5301                                 if (stcb)
5302                                         SCTP_TCB_UNLOCK(stcb);
5303                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5304                                 return (EINVAL);
5305                         }
5306
5307                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5308                                 if (stcb)
5309                                         SCTP_TCB_UNLOCK(stcb);
5310                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5311                                 return (EINVAL);
5312                         }
5313                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) &&
5314                             (paddrp->spp_pathmtu > 0) &&
5315                             ((paddrp->spp_pathmtu < SCTP_SMALLEST_PMTU) ||
5316                             (paddrp->spp_pathmtu > SCTP_LARGEST_PMTU))) {
5317                                 if (stcb)
5318                                         SCTP_TCB_UNLOCK(stcb);
5319                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5320                                 return (EINVAL);
5321                         }
5322
5323                         if (stcb != NULL) {
5324                                 /************************TCB SPECIFIC SET ******************/
5325                                 if (net != NULL) {
5326                                         /************************NET SPECIFIC SET ******************/
5327                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5328                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5329                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5330                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5331                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5332                                                 }
5333                                                 net->dest_state |= SCTP_ADDR_NOHB;
5334                                         }
5335                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5336                                                 if (paddrp->spp_hbinterval) {
5337                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5338                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5339                                                         net->heart_beat_delay = 0;
5340                                                 }
5341                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5342                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5343                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5344                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5345                                         }
5346                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5347                                                 if (SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) {
5348                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5349                                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5350                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5351                                                 }
5352                                         }
5353                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5354                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5355                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5356                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5357                                                 }
5358                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5359                                                 if (paddrp->spp_pathmtu > 0) {
5360                                                         net->mtu = paddrp->spp_pathmtu;
5361                                                         switch (net->ro._l_addr.sa.sa_family) {
5362 #ifdef INET
5363                                                         case AF_INET:
5364                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5365                                                                 break;
5366 #endif
5367 #ifdef INET6
5368                                                         case AF_INET6:
5369                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5370                                                                 break;
5371 #endif
5372                                                         default:
5373                                                                 break;
5374                                                         }
5375                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5376                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5377                                                         }
5378                                                 }
5379                                         }
5380                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5381                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5382                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5383                                                 }
5384                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5385                                         }
5386                                         if (paddrp->spp_pathmaxrxt > 0) {
5387                                                 if (net->dest_state & SCTP_ADDR_PF) {
5388                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5389                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5390                                                         }
5391                                                 } else {
5392                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5393                                                             (net->error_count > net->pf_threshold)) {
5394                                                                 net->dest_state |= SCTP_ADDR_PF;
5395                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5396                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5397                                                                     stcb->sctp_ep, stcb, net,
5398                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5399                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5400                                                         }
5401                                                 }
5402                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5403                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5404                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5405                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5406                                                         }
5407                                                 } else {
5408                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5409                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5410                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5411                                                         }
5412                                                 }
5413                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5414                                         }
5415                                         if (paddrp->spp_flags & SPP_DSCP) {
5416                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5417                                                 net->dscp |= 0x01;
5418                                         }
5419 #ifdef INET6
5420                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5421                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5422                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5423                                                         net->flowlabel |= 0x80000000;
5424                                                 }
5425                                         }
5426 #endif
5427                                 } else {
5428                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5429                                         if (paddrp->spp_pathmaxrxt > 0) {
5430                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5431                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5432                                                         if (net->dest_state & SCTP_ADDR_PF) {
5433                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5434                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5435                                                                 }
5436                                                         } else {
5437                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5438                                                                     (net->error_count > net->pf_threshold)) {
5439                                                                         net->dest_state |= SCTP_ADDR_PF;
5440                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5441                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5442                                                                             stcb->sctp_ep, stcb, net,
5443                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5444                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5445                                                                 }
5446                                                         }
5447                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5448                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5449                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5450                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5451                                                                 }
5452                                                         } else {
5453                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5454                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5455                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5456                                                                 }
5457                                                         }
5458                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5459                                                 }
5460                                         }
5461                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5462                                                 if (paddrp->spp_hbinterval != 0) {
5463                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5464                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5465                                                         stcb->asoc.heart_beat_delay = 0;
5466                                                 }
5467                                                 /* Turn back on the timer */
5468                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5469                                                         if (paddrp->spp_hbinterval != 0) {
5470                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5471                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5472                                                                 net->heart_beat_delay = 0;
5473                                                         }
5474                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5475                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5476                                                         }
5477                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5478                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5479                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5480                                                 }
5481                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5482                                         }
5483                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5484                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5485                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5486                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5487                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5488                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5489                                                                             inp, stcb, net,
5490                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5491                                                                 }
5492                                                         }
5493                                                 }
5494                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5495                                         }
5496                                         if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5497                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5498                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5499                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5500                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5501                                                         }
5502                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5503                                                         if (paddrp->spp_pathmtu > 0) {
5504                                                                 net->mtu = paddrp->spp_pathmtu;
5505                                                                 switch (net->ro._l_addr.sa.sa_family) {
5506 #ifdef INET
5507                                                                 case AF_INET:
5508                                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5509                                                                         break;
5510 #endif
5511 #ifdef INET6
5512                                                                 case AF_INET6:
5513                                                                         net->mtu += SCTP_MIN_OVERHEAD;
5514                                                                         break;
5515 #endif
5516                                                                 default:
5517                                                                         break;
5518                                                                 }
5519                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5520                                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5521                                                                 }
5522                                                         }
5523                                                 }
5524                                                 if (paddrp->spp_pathmtu > 0) {
5525                                                         stcb->asoc.default_mtu = paddrp->spp_pathmtu;
5526                                                 }
5527                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5528                                         }
5529                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5530                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5531                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5532                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5533                                                         }
5534                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5535                                                 }
5536                                                 stcb->asoc.default_mtu = 0;
5537                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5538                                         }
5539                                         if (paddrp->spp_flags & SPP_DSCP) {
5540                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5541                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5542                                                         net->dscp |= 0x01;
5543                                                 }
5544                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5545                                                 stcb->asoc.default_dscp |= 0x01;
5546                                         }
5547 #ifdef INET6
5548                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5549                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5550                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5551                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5552                                                                 net->flowlabel |= 0x80000000;
5553                                                         }
5554                                                 }
5555                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5556                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5557                                         }
5558 #endif
5559                                 }
5560                                 SCTP_TCB_UNLOCK(stcb);
5561                         } else {
5562                                 /************************NO TCB, SET TO default stuff ******************/
5563                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5564                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5565                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5566                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC))) {
5567                                         SCTP_INP_WLOCK(inp);
5568                                         /*
5569                                          * For the TOS/FLOWLABEL stuff you
5570                                          * set it with the options on the
5571                                          * socket
5572                                          */
5573                                         if (paddrp->spp_pathmaxrxt > 0) {
5574                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5575                                         }
5576
5577                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5578                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5579                                         else if (paddrp->spp_hbinterval != 0) {
5580                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5581                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5582                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5583                                         }
5584
5585                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5586                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5587                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5588                                                 } else if (paddrp->spp_hbinterval) {
5589                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = sctp_msecs_to_ticks(paddrp->spp_hbinterval);
5590                                                 }
5591                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5592                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5593                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5594                                         }
5595                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5596                                                 inp->sctp_ep.default_mtu = 0;
5597                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5598                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5599                                                 if (paddrp->spp_pathmtu > 0) {
5600                                                         inp->sctp_ep.default_mtu = paddrp->spp_pathmtu;
5601                                                 }
5602                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5603                                         }
5604                                         if (paddrp->spp_flags & SPP_DSCP) {
5605                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5606                                                 inp->sctp_ep.default_dscp |= 0x01;
5607                                         }
5608 #ifdef INET6
5609                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5610                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5611                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5612                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5613                                                 }
5614                                         }
5615 #endif
5616                                         SCTP_INP_WUNLOCK(inp);
5617                                 } else {
5618                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5619                                         error = EINVAL;
5620                                 }
5621                         }
5622                         break;
5623                 }
5624         case SCTP_RTOINFO:
5625                 {
5626                         struct sctp_rtoinfo *srto;
5627                         uint32_t new_init, new_min, new_max;
5628
5629                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5630                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5631
5632                         if (stcb) {
5633                                 if (srto->srto_initial)
5634                                         new_init = srto->srto_initial;
5635                                 else
5636                                         new_init = stcb->asoc.initial_rto;
5637                                 if (srto->srto_max)
5638                                         new_max = srto->srto_max;
5639                                 else
5640                                         new_max = stcb->asoc.maxrto;
5641                                 if (srto->srto_min)
5642                                         new_min = srto->srto_min;
5643                                 else
5644                                         new_min = stcb->asoc.minrto;
5645                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5646                                         stcb->asoc.initial_rto = new_init;
5647                                         stcb->asoc.maxrto = new_max;
5648                                         stcb->asoc.minrto = new_min;
5649                                 } else {
5650                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5651                                         error = EINVAL;
5652                                 }
5653                                 SCTP_TCB_UNLOCK(stcb);
5654                         } else {
5655                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5656                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5657                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5658                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC))) {
5659                                         SCTP_INP_WLOCK(inp);
5660                                         if (srto->srto_initial)
5661                                                 new_init = srto->srto_initial;
5662                                         else
5663                                                 new_init = inp->sctp_ep.initial_rto;
5664                                         if (srto->srto_max)
5665                                                 new_max = srto->srto_max;
5666                                         else
5667                                                 new_max = inp->sctp_ep.sctp_maxrto;
5668                                         if (srto->srto_min)
5669                                                 new_min = srto->srto_min;
5670                                         else
5671                                                 new_min = inp->sctp_ep.sctp_minrto;
5672                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5673                                                 inp->sctp_ep.initial_rto = new_init;
5674                                                 inp->sctp_ep.sctp_maxrto = new_max;
5675                                                 inp->sctp_ep.sctp_minrto = new_min;
5676                                         } else {
5677                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5678                                                 error = EINVAL;
5679                                         }
5680                                         SCTP_INP_WUNLOCK(inp);
5681                                 } else {
5682                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5683                                         error = EINVAL;
5684                                 }
5685                         }
5686                         break;
5687                 }
5688         case SCTP_ASSOCINFO:
5689                 {
5690                         struct sctp_assocparams *sasoc;
5691
5692                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5693                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5694                         if (sasoc->sasoc_cookie_life > 0) {
5695                                 /* boundary check the cookie life */
5696                                 if (sasoc->sasoc_cookie_life < SCTP_MIN_COOKIE_LIFE) {
5697                                         sasoc->sasoc_cookie_life = SCTP_MIN_COOKIE_LIFE;
5698                                 }
5699                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5700                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5701                                 }
5702                         }
5703                         if (stcb) {
5704                                 if (sasoc->sasoc_asocmaxrxt > 0) {
5705                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5706                                 }
5707                                 if (sasoc->sasoc_cookie_life > 0) {
5708                                         stcb->asoc.cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5709                                 }
5710                                 SCTP_TCB_UNLOCK(stcb);
5711                         } else {
5712                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5713                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5714                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
5715                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC))) {
5716                                         SCTP_INP_WLOCK(inp);
5717                                         if (sasoc->sasoc_asocmaxrxt > 0) {
5718                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5719                                         }
5720                                         if (sasoc->sasoc_cookie_life > 0) {
5721                                                 inp->sctp_ep.def_cookie_life = sctp_msecs_to_ticks(sasoc->sasoc_cookie_life);
5722                                         }
5723                                         SCTP_INP_WUNLOCK(inp);
5724                                 } else {
5725                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5726                                         error = EINVAL;
5727                                 }
5728                         }
5729                         break;
5730                 }
5731         case SCTP_INITMSG:
5732                 {
5733                         struct sctp_initmsg *sinit;
5734
5735                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5736                         SCTP_INP_WLOCK(inp);
5737                         if (sinit->sinit_num_ostreams)
5738                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5739
5740                         if (sinit->sinit_max_instreams)
5741                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5742
5743                         if (sinit->sinit_max_attempts)
5744                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5745
5746                         if (sinit->sinit_max_init_timeo)
5747                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5748                         SCTP_INP_WUNLOCK(inp);
5749                         break;
5750                 }
5751         case SCTP_PRIMARY_ADDR:
5752                 {
5753                         struct sctp_setprim *spa;
5754                         struct sctp_nets *net;
5755                         struct sockaddr *addr;
5756 #if defined(INET) && defined(INET6)
5757                         struct sockaddr_in sin_store;
5758 #endif
5759
5760                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5761                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5762
5763 #if defined(INET) && defined(INET6)
5764                         if (spa->ssp_addr.ss_family == AF_INET6) {
5765                                 struct sockaddr_in6 *sin6;
5766
5767                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5768                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5769                                         in6_sin6_2_sin(&sin_store, sin6);
5770                                         addr = (struct sockaddr *)&sin_store;
5771                                 } else {
5772                                         addr = (struct sockaddr *)&spa->ssp_addr;
5773                                 }
5774                         } else {
5775                                 addr = (struct sockaddr *)&spa->ssp_addr;
5776                         }
5777 #else
5778                         addr = (struct sockaddr *)&spa->ssp_addr;
5779 #endif
5780                         if (stcb != NULL) {
5781                                 net = sctp_findnet(stcb, addr);
5782                         } else {
5783                                 /*
5784                                  * We increment here since
5785                                  * sctp_findassociation_ep_addr() wil do a
5786                                  * decrement if it finds the stcb as long as
5787                                  * the locked tcb (last argument) is NOT a
5788                                  * TCB.. aka NULL.
5789                                  */
5790                                 net = NULL;
5791                                 SCTP_INP_INCR_REF(inp);
5792                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5793                                     &net, NULL, NULL);
5794                                 if (stcb == NULL) {
5795                                         SCTP_INP_DECR_REF(inp);
5796                                 }
5797                         }
5798
5799                         if ((stcb != NULL) && (net != NULL)) {
5800                                 if (net != stcb->asoc.primary_destination) {
5801                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5802                                                 /* Ok we need to set it */
5803                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5804                                                         if ((stcb->asoc.alternate) &&
5805                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5806                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5807                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5808                                                                 stcb->asoc.alternate = NULL;
5809                                                         }
5810                                                 } else {
5811                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5812                                                         error = EINVAL;
5813                                                 }
5814                                         } else {
5815                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5816                                                 error = EINVAL;
5817                                         }
5818                                 }
5819                         } else {
5820                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5821                                 error = EINVAL;
5822                         }
5823                         if (stcb != NULL) {
5824                                 SCTP_TCB_UNLOCK(stcb);
5825                         }
5826                         break;
5827                 }
5828         case SCTP_SET_DYNAMIC_PRIMARY:
5829                 {
5830                         union sctp_sockstore *ss;
5831
5832                         error = priv_check(curthread,
5833                             PRIV_NETINET_RESERVEDPORT);
5834                         if (error)
5835                                 break;
5836
5837                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5838                         /* SUPER USER CHECK? */
5839                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5840                         break;
5841                 }
5842         case SCTP_SET_PEER_PRIMARY_ADDR:
5843                 {
5844                         struct sctp_setpeerprim *sspp;
5845                         struct sockaddr *addr;
5846 #if defined(INET) && defined(INET6)
5847                         struct sockaddr_in sin_store;
5848 #endif
5849
5850                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5851                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5852                         if (stcb != NULL) {
5853                                 struct sctp_ifa *ifa;
5854
5855 #if defined(INET) && defined(INET6)
5856                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5857                                         struct sockaddr_in6 *sin6;
5858
5859                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5860                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5861                                                 in6_sin6_2_sin(&sin_store, sin6);
5862                                                 addr = (struct sockaddr *)&sin_store;
5863                                         } else {
5864                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5865                                         }
5866                                 } else {
5867                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5868                                 }
5869 #else
5870                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5871 #endif
5872                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5873                                 if (ifa == NULL) {
5874                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5875                                         error = EINVAL;
5876                                         goto out_of_it;
5877                                 }
5878                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5879                                         /*
5880                                          * Must validate the ifa found is in
5881                                          * our ep
5882                                          */
5883                                         struct sctp_laddr *laddr;
5884                                         int found = 0;
5885
5886                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5887                                                 if (laddr->ifa == NULL) {
5888                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5889                                                             __func__);
5890                                                         continue;
5891                                                 }
5892                                                 if ((sctp_is_addr_restricted(stcb, laddr->ifa)) &&
5893                                                     (!sctp_is_addr_pending(stcb, laddr->ifa))) {
5894                                                         continue;
5895                                                 }
5896                                                 if (laddr->ifa == ifa) {
5897                                                         found = 1;
5898                                                         break;
5899                                                 }
5900                                         }
5901                                         if (!found) {
5902                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5903                                                 error = EINVAL;
5904                                                 goto out_of_it;
5905                                         }
5906                                 } else {
5907                                         switch (addr->sa_family) {
5908 #ifdef INET
5909                                         case AF_INET:
5910                                                 {
5911                                                         struct sockaddr_in *sin;
5912
5913                                                         sin = (struct sockaddr_in *)addr;
5914                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5915                                                             &sin->sin_addr) != 0) {
5916                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5917                                                                 error = EINVAL;
5918                                                                 goto out_of_it;
5919                                                         }
5920                                                         break;
5921                                                 }
5922 #endif
5923 #ifdef INET6
5924                                         case AF_INET6:
5925                                                 {
5926                                                         struct sockaddr_in6 *sin6;
5927
5928                                                         sin6 = (struct sockaddr_in6 *)addr;
5929                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5930                                                             &sin6->sin6_addr) != 0) {
5931                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5932                                                                 error = EINVAL;
5933                                                                 goto out_of_it;
5934                                                         }
5935                                                         break;
5936                                                 }
5937 #endif
5938                                         default:
5939                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5940                                                 error = EINVAL;
5941                                                 goto out_of_it;
5942                                         }
5943                                 }
5944                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5945                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5946                                         error = EINVAL;
5947                                 }
5948                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5949                 out_of_it:
5950                                 SCTP_TCB_UNLOCK(stcb);
5951                         } else {
5952                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5953                                 error = EINVAL;
5954                         }
5955                         break;
5956                 }
5957         case SCTP_BINDX_ADD_ADDR:
5958                 {
5959                         struct sockaddr *sa;
5960                         struct thread *td;
5961
5962                         td = (struct thread *)p;
5963                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
5964 #ifdef INET
5965                         if (sa->sa_family == AF_INET) {
5966                                 if (optsize < sizeof(struct sockaddr_in)) {
5967                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5968                                         error = EINVAL;
5969                                         break;
5970                                 }
5971                                 if (td != NULL &&
5972                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
5973                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5974                                         break;
5975                                 }
5976                         } else
5977 #endif
5978 #ifdef INET6
5979                         if (sa->sa_family == AF_INET6) {
5980                                 if (optsize < sizeof(struct sockaddr_in6)) {
5981                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5982                                         error = EINVAL;
5983                                         break;
5984                                 }
5985                                 if (td != NULL &&
5986                                     (error = prison_local_ip6(td->td_ucred,
5987                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
5988                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5989                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5990                                         break;
5991                                 }
5992                         } else
5993 #endif
5994                         {
5995                                 error = EAFNOSUPPORT;
5996                                 break;
5997                         }
5998                         sctp_bindx_add_address(so, inp, sa, vrf_id, &error, p);
5999                         break;
6000                 }
6001         case SCTP_BINDX_REM_ADDR:
6002                 {
6003                         struct sockaddr *sa;
6004                         struct thread *td;
6005
6006                         td = (struct thread *)p;
6007
6008                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
6009 #ifdef INET
6010                         if (sa->sa_family == AF_INET) {
6011                                 if (optsize < sizeof(struct sockaddr_in)) {
6012                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6013                                         error = EINVAL;
6014                                         break;
6015                                 }
6016                                 if (td != NULL &&
6017                                     (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)sa)->sin_addr)))) {
6018                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6019                                         break;
6020                                 }
6021                         } else
6022 #endif
6023 #ifdef INET6
6024                         if (sa->sa_family == AF_INET6) {
6025                                 if (optsize < sizeof(struct sockaddr_in6)) {
6026                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6027                                         error = EINVAL;
6028                                         break;
6029                                 }
6030                                 if (td != NULL &&
6031                                     (error = prison_local_ip6(td->td_ucred,
6032                                     &(((struct sockaddr_in6 *)sa)->sin6_addr),
6033                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
6034                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
6035                                         break;
6036                                 }
6037                         } else
6038 #endif
6039                         {
6040                                 error = EAFNOSUPPORT;
6041                                 break;
6042                         }
6043                         sctp_bindx_delete_address(inp, sa, vrf_id, &error);
6044                         break;
6045                 }
6046         case SCTP_EVENT:
6047                 {
6048                         struct sctp_event *event;
6049                         uint32_t event_type;
6050
6051                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
6052                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
6053                         switch (event->se_type) {
6054                         case SCTP_ASSOC_CHANGE:
6055                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
6056                                 break;
6057                         case SCTP_PEER_ADDR_CHANGE:
6058                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
6059                                 break;
6060                         case SCTP_REMOTE_ERROR:
6061                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
6062                                 break;
6063                         case SCTP_SEND_FAILED:
6064                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
6065                                 break;
6066                         case SCTP_SHUTDOWN_EVENT:
6067                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
6068                                 break;
6069                         case SCTP_ADAPTATION_INDICATION:
6070                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
6071                                 break;
6072                         case SCTP_PARTIAL_DELIVERY_EVENT:
6073                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
6074                                 break;
6075                         case SCTP_AUTHENTICATION_EVENT:
6076                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6077                                 break;
6078                         case SCTP_STREAM_RESET_EVENT:
6079                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6080                                 break;
6081                         case SCTP_SENDER_DRY_EVENT:
6082                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6083                                 break;
6084                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6085                                 event_type = 0;
6086                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6087                                 error = ENOTSUP;
6088                                 break;
6089                         case SCTP_ASSOC_RESET_EVENT:
6090                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6091                                 break;
6092                         case SCTP_STREAM_CHANGE_EVENT:
6093                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6094                                 break;
6095                         case SCTP_SEND_FAILED_EVENT:
6096                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6097                                 break;
6098                         default:
6099                                 event_type = 0;
6100                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6101                                 error = EINVAL;
6102                                 break;
6103                         }
6104                         if (event_type > 0) {
6105                                 if (stcb) {
6106                                         if (event->se_on) {
6107                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6108                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6109                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6110                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6111                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6112                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6113                                                         }
6114                                                 }
6115                                         } else {
6116                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6117                                         }
6118                                         SCTP_TCB_UNLOCK(stcb);
6119                                 } else {
6120                                         /*
6121                                          * We don't want to send up a storm
6122                                          * of events, so return an error for
6123                                          * sender dry events
6124                                          */
6125                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6126                                             (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6127                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6128                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6129                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6130                                                 error = ENOTSUP;
6131                                                 break;
6132                                         }
6133                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6134                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6135                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6136                                             ((event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6137                                             (event->se_assoc_id == SCTP_ALL_ASSOC)))) {
6138                                                 SCTP_INP_WLOCK(inp);
6139                                                 if (event->se_on) {
6140                                                         sctp_feature_on(inp, event_type);
6141                                                 } else {
6142                                                         sctp_feature_off(inp, event_type);
6143                                                 }
6144                                                 SCTP_INP_WUNLOCK(inp);
6145                                         }
6146                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6147                                             ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6148                                             (event->se_assoc_id == SCTP_ALL_ASSOC))) {
6149                                                 SCTP_INP_RLOCK(inp);
6150                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6151                                                         SCTP_TCB_LOCK(stcb);
6152                                                         if (event->se_on) {
6153                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6154                                                         } else {
6155                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6156                                                         }
6157                                                         SCTP_TCB_UNLOCK(stcb);
6158                                                 }
6159                                                 SCTP_INP_RUNLOCK(inp);
6160                                         }
6161                                 }
6162                         } else {
6163                                 if (stcb) {
6164                                         SCTP_TCB_UNLOCK(stcb);
6165                                 }
6166                         }
6167                         break;
6168                 }
6169         case SCTP_RECVRCVINFO:
6170                 {
6171                         int *onoff;
6172
6173                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6174                         SCTP_INP_WLOCK(inp);
6175                         if (*onoff != 0) {
6176                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6177                         } else {
6178                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6179                         }
6180                         SCTP_INP_WUNLOCK(inp);
6181                         break;
6182                 }
6183         case SCTP_RECVNXTINFO:
6184                 {
6185                         int *onoff;
6186
6187                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6188                         SCTP_INP_WLOCK(inp);
6189                         if (*onoff != 0) {
6190                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6191                         } else {
6192                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6193                         }
6194                         SCTP_INP_WUNLOCK(inp);
6195                         break;
6196                 }
6197         case SCTP_DEFAULT_SNDINFO:
6198                 {
6199                         struct sctp_sndinfo *info;
6200                         uint16_t policy;
6201
6202                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6203                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6204
6205                         if (stcb) {
6206                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6207                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6208                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6209                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6210                                         stcb->asoc.def_send.sinfo_flags |= policy;
6211                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6212                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6213                                 } else {
6214                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6215                                         error = EINVAL;
6216                                 }
6217                                 SCTP_TCB_UNLOCK(stcb);
6218                         } else {
6219                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6220                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6221                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6222                                     ((info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6223                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)))) {
6224                                         SCTP_INP_WLOCK(inp);
6225                                         inp->def_send.sinfo_stream = info->snd_sid;
6226                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6227                                         inp->def_send.sinfo_flags = info->snd_flags;
6228                                         inp->def_send.sinfo_flags |= policy;
6229                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6230                                         inp->def_send.sinfo_context = info->snd_context;
6231                                         SCTP_INP_WUNLOCK(inp);
6232                                 }
6233                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6234                                     ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6235                                     (info->snd_assoc_id == SCTP_ALL_ASSOC))) {
6236                                         SCTP_INP_RLOCK(inp);
6237                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6238                                                 SCTP_TCB_LOCK(stcb);
6239                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6240                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6241                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6242                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6243                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6244                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6245                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6246                                                 }
6247                                                 SCTP_TCB_UNLOCK(stcb);
6248                                         }
6249                                         SCTP_INP_RUNLOCK(inp);
6250                                 }
6251                         }
6252                         break;
6253                 }
6254         case SCTP_DEFAULT_PRINFO:
6255                 {
6256                         struct sctp_default_prinfo *info;
6257
6258                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6259                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6260
6261                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6262                                 if (stcb) {
6263                                         SCTP_TCB_UNLOCK(stcb);
6264                                 }
6265                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6266                                 error = EINVAL;
6267                                 break;
6268                         }
6269                         if (stcb) {
6270                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6271                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6272                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6273                                 SCTP_TCB_UNLOCK(stcb);
6274                         } else {
6275                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6276                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6277                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6278                                     ((info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6279                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)))) {
6280                                         SCTP_INP_WLOCK(inp);
6281                                         inp->def_send.sinfo_flags &= 0xfff0;
6282                                         inp->def_send.sinfo_flags |= info->pr_policy;
6283                                         inp->def_send.sinfo_timetolive = info->pr_value;
6284                                         SCTP_INP_WUNLOCK(inp);
6285                                 }
6286                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6287                                     ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6288                                     (info->pr_assoc_id == SCTP_ALL_ASSOC))) {
6289                                         SCTP_INP_RLOCK(inp);
6290                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6291                                                 SCTP_TCB_LOCK(stcb);
6292                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6293                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6294                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6295                                                 SCTP_TCB_UNLOCK(stcb);
6296                                         }
6297                                         SCTP_INP_RUNLOCK(inp);
6298                                 }
6299                         }
6300                         break;
6301                 }
6302         case SCTP_PEER_ADDR_THLDS:
6303                 /* Applies to the specific association */
6304                 {
6305                         struct sctp_paddrthlds *thlds;
6306                         struct sctp_nets *net;
6307                         struct sockaddr *addr;
6308 #if defined(INET) && defined(INET6)
6309                         struct sockaddr_in sin_store;
6310 #endif
6311
6312                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6313                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6314
6315 #if defined(INET) && defined(INET6)
6316                         if (thlds->spt_address.ss_family == AF_INET6) {
6317                                 struct sockaddr_in6 *sin6;
6318
6319                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6320                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6321                                         in6_sin6_2_sin(&sin_store, sin6);
6322                                         addr = (struct sockaddr *)&sin_store;
6323                                 } else {
6324                                         addr = (struct sockaddr *)&thlds->spt_address;
6325                                 }
6326                         } else {
6327                                 addr = (struct sockaddr *)&thlds->spt_address;
6328                         }
6329 #else
6330                         addr = (struct sockaddr *)&thlds->spt_address;
6331 #endif
6332                         if (stcb != NULL) {
6333                                 net = sctp_findnet(stcb, addr);
6334                         } else {
6335                                 /*
6336                                  * We increment here since
6337                                  * sctp_findassociation_ep_addr() wil do a
6338                                  * decrement if it finds the stcb as long as
6339                                  * the locked tcb (last argument) is NOT a
6340                                  * TCB.. aka NULL.
6341                                  */
6342                                 net = NULL;
6343                                 SCTP_INP_INCR_REF(inp);
6344                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6345                                     &net, NULL, NULL);
6346                                 if (stcb == NULL) {
6347                                         SCTP_INP_DECR_REF(inp);
6348                                 }
6349                         }
6350                         if ((stcb != NULL) && (net == NULL)) {
6351 #ifdef INET
6352                                 if (addr->sa_family == AF_INET) {
6353                                         struct sockaddr_in *sin;
6354
6355                                         sin = (struct sockaddr_in *)addr;
6356                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6357                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6358                                                 SCTP_TCB_UNLOCK(stcb);
6359                                                 error = EINVAL;
6360                                                 break;
6361                                         }
6362                                 } else
6363 #endif
6364 #ifdef INET6
6365                                 if (addr->sa_family == AF_INET6) {
6366                                         struct sockaddr_in6 *sin6;
6367
6368                                         sin6 = (struct sockaddr_in6 *)addr;
6369                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6370                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6371                                                 SCTP_TCB_UNLOCK(stcb);
6372                                                 error = EINVAL;
6373                                                 break;
6374                                         }
6375                                 } else
6376 #endif
6377                                 {
6378                                         error = EAFNOSUPPORT;
6379                                         SCTP_TCB_UNLOCK(stcb);
6380                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6381                                         break;
6382                                 }
6383                         }
6384                         if (thlds->spt_pathcpthld != 0xffff) {
6385                                 if (stcb != NULL) {
6386                                         SCTP_TCB_UNLOCK(stcb);
6387                                 }
6388                                 error = EINVAL;
6389                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6390                                 break;
6391                         }
6392                         if (stcb != NULL) {
6393                                 if (net != NULL) {
6394                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6395                                         net->pf_threshold = thlds->spt_pathpfthld;
6396                                         if (net->dest_state & SCTP_ADDR_PF) {
6397                                                 if ((net->error_count > net->failure_threshold) ||
6398                                                     (net->error_count <= net->pf_threshold)) {
6399                                                         net->dest_state &= ~SCTP_ADDR_PF;
6400                                                 }
6401                                         } else {
6402                                                 if ((net->error_count > net->pf_threshold) &&
6403                                                     (net->error_count <= net->failure_threshold)) {
6404                                                         net->dest_state |= SCTP_ADDR_PF;
6405                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6406                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6407                                                             stcb->sctp_ep, stcb, net,
6408                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6409                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6410                                                 }
6411                                         }
6412                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6413                                                 if (net->error_count > net->failure_threshold) {
6414                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6415                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6416                                                 }
6417                                         } else {
6418                                                 if (net->error_count <= net->failure_threshold) {
6419                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6420                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6421                                                 }
6422                                         }
6423                                 } else {
6424                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6425                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6426                                                 net->pf_threshold = thlds->spt_pathpfthld;
6427                                                 if (net->dest_state & SCTP_ADDR_PF) {
6428                                                         if ((net->error_count > net->failure_threshold) ||
6429                                                             (net->error_count <= net->pf_threshold)) {
6430                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6431                                                         }
6432                                                 } else {
6433                                                         if ((net->error_count > net->pf_threshold) &&
6434                                                             (net->error_count <= net->failure_threshold)) {
6435                                                                 net->dest_state |= SCTP_ADDR_PF;
6436                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6437                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6438                                                                     stcb->sctp_ep, stcb, net,
6439                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6440                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6441                                                         }
6442                                                 }
6443                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6444                                                         if (net->error_count > net->failure_threshold) {
6445                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6446                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6447                                                         }
6448                                                 } else {
6449                                                         if (net->error_count <= net->failure_threshold) {
6450                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6451                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6452                                                         }
6453                                                 }
6454                                         }
6455                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6456                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6457                                 }
6458                                 SCTP_TCB_UNLOCK(stcb);
6459                         } else {
6460                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6461                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6462                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6463                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC))) {
6464                                         SCTP_INP_WLOCK(inp);
6465                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6466                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6467                                         SCTP_INP_WUNLOCK(inp);
6468                                 } else {
6469                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6470                                         error = EINVAL;
6471                                 }
6472                         }
6473                         break;
6474                 }
6475         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6476                 {
6477                         struct sctp_udpencaps *encaps;
6478                         struct sctp_nets *net;
6479                         struct sockaddr *addr;
6480 #if defined(INET) && defined(INET6)
6481                         struct sockaddr_in sin_store;
6482 #endif
6483
6484                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6485                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6486
6487 #if defined(INET) && defined(INET6)
6488                         if (encaps->sue_address.ss_family == AF_INET6) {
6489                                 struct sockaddr_in6 *sin6;
6490
6491                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6492                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6493                                         in6_sin6_2_sin(&sin_store, sin6);
6494                                         addr = (struct sockaddr *)&sin_store;
6495                                 } else {
6496                                         addr = (struct sockaddr *)&encaps->sue_address;
6497                                 }
6498                         } else {
6499                                 addr = (struct sockaddr *)&encaps->sue_address;
6500                         }
6501 #else
6502                         addr = (struct sockaddr *)&encaps->sue_address;
6503 #endif
6504                         if (stcb != NULL) {
6505                                 net = sctp_findnet(stcb, addr);
6506                         } else {
6507                                 /*
6508                                  * We increment here since
6509                                  * sctp_findassociation_ep_addr() wil do a
6510                                  * decrement if it finds the stcb as long as
6511                                  * the locked tcb (last argument) is NOT a
6512                                  * TCB.. aka NULL.
6513                                  */
6514                                 net = NULL;
6515                                 SCTP_INP_INCR_REF(inp);
6516                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6517                                 if (stcb == NULL) {
6518                                         SCTP_INP_DECR_REF(inp);
6519                                 }
6520                         }
6521                         if ((stcb != NULL) && (net == NULL)) {
6522 #ifdef INET
6523                                 if (addr->sa_family == AF_INET) {
6524                                         struct sockaddr_in *sin;
6525
6526                                         sin = (struct sockaddr_in *)addr;
6527                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6528                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6529                                                 SCTP_TCB_UNLOCK(stcb);
6530                                                 error = EINVAL;
6531                                                 break;
6532                                         }
6533                                 } else
6534 #endif
6535 #ifdef INET6
6536                                 if (addr->sa_family == AF_INET6) {
6537                                         struct sockaddr_in6 *sin6;
6538
6539                                         sin6 = (struct sockaddr_in6 *)addr;
6540                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6541                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6542                                                 SCTP_TCB_UNLOCK(stcb);
6543                                                 error = EINVAL;
6544                                                 break;
6545                                         }
6546                                 } else
6547 #endif
6548                                 {
6549                                         error = EAFNOSUPPORT;
6550                                         SCTP_TCB_UNLOCK(stcb);
6551                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6552                                         break;
6553                                 }
6554                         }
6555
6556                         if (stcb != NULL) {
6557                                 if (net != NULL) {
6558                                         net->port = encaps->sue_port;
6559                                 } else {
6560                                         stcb->asoc.port = encaps->sue_port;
6561                                 }
6562                                 SCTP_TCB_UNLOCK(stcb);
6563                         } else {
6564                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6565                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6566                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6567                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC))) {
6568                                         SCTP_INP_WLOCK(inp);
6569                                         inp->sctp_ep.port = encaps->sue_port;
6570                                         SCTP_INP_WUNLOCK(inp);
6571                                 } else {
6572                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6573                                         error = EINVAL;
6574                                 }
6575                         }
6576                         break;
6577                 }
6578         case SCTP_ECN_SUPPORTED:
6579                 {
6580                         struct sctp_assoc_value *av;
6581
6582                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6583                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6584
6585                         if (stcb) {
6586                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6587                                 error = EINVAL;
6588                                 SCTP_TCB_UNLOCK(stcb);
6589                         } else {
6590                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6591                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6592                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6593                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6594                                         SCTP_INP_WLOCK(inp);
6595                                         if (av->assoc_value == 0) {
6596                                                 inp->ecn_supported = 0;
6597                                         } else {
6598                                                 inp->ecn_supported = 1;
6599                                         }
6600                                         SCTP_INP_WUNLOCK(inp);
6601                                 } else {
6602                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6603                                         error = EINVAL;
6604                                 }
6605                         }
6606                         break;
6607                 }
6608         case SCTP_PR_SUPPORTED:
6609                 {
6610                         struct sctp_assoc_value *av;
6611
6612                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6613                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6614
6615                         if (stcb) {
6616                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6617                                 error = EINVAL;
6618                                 SCTP_TCB_UNLOCK(stcb);
6619                         } else {
6620                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6621                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6622                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6623                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6624                                         SCTP_INP_WLOCK(inp);
6625                                         if (av->assoc_value == 0) {
6626                                                 inp->prsctp_supported = 0;
6627                                         } else {
6628                                                 inp->prsctp_supported = 1;
6629                                         }
6630                                         SCTP_INP_WUNLOCK(inp);
6631                                 } else {
6632                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6633                                         error = EINVAL;
6634                                 }
6635                         }
6636                         break;
6637                 }
6638         case SCTP_AUTH_SUPPORTED:
6639                 {
6640                         struct sctp_assoc_value *av;
6641
6642                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6643                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6644
6645                         if (stcb) {
6646                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6647                                 error = EINVAL;
6648                                 SCTP_TCB_UNLOCK(stcb);
6649                         } else {
6650                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6651                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6652                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6653                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6654                                         if ((av->assoc_value == 0) &&
6655                                             (inp->asconf_supported == 1)) {
6656                                                 /*
6657                                                  * AUTH is required for
6658                                                  * ASCONF
6659                                                  */
6660                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6661                                                 error = EINVAL;
6662                                         } else {
6663                                                 SCTP_INP_WLOCK(inp);
6664                                                 if (av->assoc_value == 0) {
6665                                                         inp->auth_supported = 0;
6666                                                 } else {
6667                                                         inp->auth_supported = 1;
6668                                                 }
6669                                                 SCTP_INP_WUNLOCK(inp);
6670                                         }
6671                                 } else {
6672                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6673                                         error = EINVAL;
6674                                 }
6675                         }
6676                         break;
6677                 }
6678         case SCTP_ASCONF_SUPPORTED:
6679                 {
6680                         struct sctp_assoc_value *av;
6681
6682                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6683                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6684
6685                         if (stcb) {
6686                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6687                                 error = EINVAL;
6688                                 SCTP_TCB_UNLOCK(stcb);
6689                         } else {
6690                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6691                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6692                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6693                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6694                                         if ((av->assoc_value != 0) &&
6695                                             (inp->auth_supported == 0)) {
6696                                                 /*
6697                                                  * AUTH is required for
6698                                                  * ASCONF
6699                                                  */
6700                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6701                                                 error = EINVAL;
6702                                         } else {
6703                                                 SCTP_INP_WLOCK(inp);
6704                                                 if (av->assoc_value == 0) {
6705                                                         inp->asconf_supported = 0;
6706                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6707                                                             inp->sctp_ep.local_auth_chunks);
6708                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6709                                                             inp->sctp_ep.local_auth_chunks);
6710                                                 } else {
6711                                                         inp->asconf_supported = 1;
6712                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6713                                                             inp->sctp_ep.local_auth_chunks);
6714                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6715                                                             inp->sctp_ep.local_auth_chunks);
6716                                                 }
6717                                                 SCTP_INP_WUNLOCK(inp);
6718                                         }
6719                                 } else {
6720                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6721                                         error = EINVAL;
6722                                 }
6723                         }
6724                         break;
6725                 }
6726         case SCTP_RECONFIG_SUPPORTED:
6727                 {
6728                         struct sctp_assoc_value *av;
6729
6730                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6731                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6732
6733                         if (stcb) {
6734                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6735                                 error = EINVAL;
6736                                 SCTP_TCB_UNLOCK(stcb);
6737                         } else {
6738                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6739                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6740                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6741                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6742                                         SCTP_INP_WLOCK(inp);
6743                                         if (av->assoc_value == 0) {
6744                                                 inp->reconfig_supported = 0;
6745                                         } else {
6746                                                 inp->reconfig_supported = 1;
6747                                         }
6748                                         SCTP_INP_WUNLOCK(inp);
6749                                 } else {
6750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6751                                         error = EINVAL;
6752                                 }
6753                         }
6754                         break;
6755                 }
6756         case SCTP_NRSACK_SUPPORTED:
6757                 {
6758                         struct sctp_assoc_value *av;
6759
6760                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6761                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6762
6763                         if (stcb) {
6764                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6765                                 error = EINVAL;
6766                                 SCTP_TCB_UNLOCK(stcb);
6767                         } else {
6768                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6769                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6770                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6771                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6772                                         SCTP_INP_WLOCK(inp);
6773                                         if (av->assoc_value == 0) {
6774                                                 inp->nrsack_supported = 0;
6775                                         } else {
6776                                                 inp->nrsack_supported = 1;
6777                                         }
6778                                         SCTP_INP_WUNLOCK(inp);
6779                                 } else {
6780                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6781                                         error = EINVAL;
6782                                 }
6783                         }
6784                         break;
6785                 }
6786         case SCTP_PKTDROP_SUPPORTED:
6787                 {
6788                         struct sctp_assoc_value *av;
6789
6790                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6791                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6792
6793                         if (stcb) {
6794                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6795                                 error = EINVAL;
6796                                 SCTP_TCB_UNLOCK(stcb);
6797                         } else {
6798                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6799                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6800                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6801                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6802                                         SCTP_INP_WLOCK(inp);
6803                                         if (av->assoc_value == 0) {
6804                                                 inp->pktdrop_supported = 0;
6805                                         } else {
6806                                                 inp->pktdrop_supported = 1;
6807                                         }
6808                                         SCTP_INP_WUNLOCK(inp);
6809                                 } else {
6810                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6811                                         error = EINVAL;
6812                                 }
6813                         }
6814                         break;
6815                 }
6816         case SCTP_MAX_CWND:
6817                 {
6818                         struct sctp_assoc_value *av;
6819                         struct sctp_nets *net;
6820
6821                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6822                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6823
6824                         if (stcb) {
6825                                 stcb->asoc.max_cwnd = av->assoc_value;
6826                                 if (stcb->asoc.max_cwnd > 0) {
6827                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6828                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6829                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6830                                                         net->cwnd = stcb->asoc.max_cwnd;
6831                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6832                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6833                                                         }
6834                                                 }
6835                                         }
6836                                 }
6837                                 SCTP_TCB_UNLOCK(stcb);
6838                         } else {
6839                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6840                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6841                                     ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) &&
6842                                     (av->assoc_id == SCTP_FUTURE_ASSOC))) {
6843                                         SCTP_INP_WLOCK(inp);
6844                                         inp->max_cwnd = av->assoc_value;
6845                                         SCTP_INP_WUNLOCK(inp);
6846                                 } else {
6847                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6848                                         error = EINVAL;
6849                                 }
6850                         }
6851                         break;
6852                 }
6853         default:
6854                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6855                 error = ENOPROTOOPT;
6856                 break;
6857         }                       /* end switch (opt) */
6858         return (error);
6859 }
6860
6861 int
6862 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6863 {
6864         struct epoch_tracker et;
6865         struct sctp_inpcb *inp;
6866         void *optval = NULL;
6867         void *p;
6868         size_t optsize = 0;
6869         int error = 0;
6870
6871         if ((sopt->sopt_level == SOL_SOCKET) &&
6872             (sopt->sopt_name == SO_SETFIB)) {
6873                 inp = (struct sctp_inpcb *)so->so_pcb;
6874                 if (inp == NULL) {
6875                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6876                         return (EINVAL);
6877                 }
6878                 SCTP_INP_WLOCK(inp);
6879                 inp->fibnum = so->so_fibnum;
6880                 SCTP_INP_WUNLOCK(inp);
6881                 return (0);
6882         }
6883         if (sopt->sopt_level != IPPROTO_SCTP) {
6884                 /* wrong proto level... send back up to IP */
6885 #ifdef INET6
6886                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6887                         error = ip6_ctloutput(so, sopt);
6888 #endif                          /* INET6 */
6889 #if defined(INET) && defined(INET6)
6890                 else
6891 #endif
6892 #ifdef INET
6893                         error = ip_ctloutput(so, sopt);
6894 #endif
6895                 return (error);
6896         }
6897         optsize = sopt->sopt_valsize;
6898         if (optsize > SCTP_SOCKET_OPTION_LIMIT) {
6899                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6900                 return (ENOBUFS);
6901         }
6902         if (optsize) {
6903                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6904                 if (optval == NULL) {
6905                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6906                         return (ENOBUFS);
6907                 }
6908                 error = sooptcopyin(sopt, optval, optsize, optsize);
6909                 if (error) {
6910                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6911                         goto out;
6912                 }
6913         }
6914         p = (void *)sopt->sopt_td;
6915         if (sopt->sopt_dir == SOPT_SET) {
6916                 NET_EPOCH_ENTER(et);
6917                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6918                 NET_EPOCH_EXIT(et);
6919         } else if (sopt->sopt_dir == SOPT_GET) {
6920                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6921         } else {
6922                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6923                 error = EINVAL;
6924         }
6925         if ((error == 0) && (optval != NULL)) {
6926                 error = sooptcopyout(sopt, optval, optsize);
6927                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6928         } else if (optval != NULL) {
6929                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6930         }
6931 out:
6932         return (error);
6933 }
6934
6935 #ifdef INET
6936 static int
6937 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6938 {
6939         struct epoch_tracker et;
6940         int error = 0;
6941         int create_lock_on = 0;
6942         uint32_t vrf_id;
6943         struct sctp_inpcb *inp;
6944         struct sctp_tcb *stcb = NULL;
6945
6946         inp = (struct sctp_inpcb *)so->so_pcb;
6947         if (inp == NULL) {
6948                 /* I made the same as TCP since we are not setup? */
6949                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6950                 return (ECONNRESET);
6951         }
6952         if (addr == NULL) {
6953                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6954                 return EINVAL;
6955         }
6956
6957         switch (addr->sa_family) {
6958 #ifdef INET6
6959         case AF_INET6:
6960                 {
6961                         struct sockaddr_in6 *sin6;
6962
6963                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6964                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6965                                 return (EINVAL);
6966                         }
6967                         sin6 = (struct sockaddr_in6 *)addr;
6968                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6->sin6_addr)) != 0) {
6969                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6970                                 return (error);
6971                         }
6972                         break;
6973                 }
6974 #endif
6975 #ifdef INET
6976         case AF_INET:
6977                 {
6978                         struct sockaddr_in *sin;
6979
6980                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6981                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6982                                 return (EINVAL);
6983                         }
6984                         sin = (struct sockaddr_in *)addr;
6985                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sin->sin_addr)) != 0) {
6986                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6987                                 return (error);
6988                         }
6989                         break;
6990                 }
6991 #endif
6992         default:
6993                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6994                 return (EAFNOSUPPORT);
6995         }
6996         SCTP_INP_INCR_REF(inp);
6997         SCTP_ASOC_CREATE_LOCK(inp);
6998         create_lock_on = 1;
6999         NET_EPOCH_ENTER(et);
7000
7001         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
7002             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
7003                 /* Should I really unlock ? */
7004                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
7005                 error = EFAULT;
7006                 goto out_now;
7007         }
7008 #ifdef INET6
7009         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
7010             (addr->sa_family == AF_INET6)) {
7011                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7012                 error = EINVAL;
7013                 goto out_now;
7014         }
7015 #endif
7016         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
7017             SCTP_PCB_FLAGS_UNBOUND) {
7018                 /* Bind a ephemeral port */
7019                 error = sctp_inpcb_bind(so, NULL, NULL, p);
7020                 if (error) {
7021                         goto out_now;
7022                 }
7023         }
7024         /* Now do we connect? */
7025         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
7026             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
7027                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7028                 error = EINVAL;
7029                 goto out_now;
7030         }
7031         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7032             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7033                 /* We are already connected AND the TCP model */
7034                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7035                 error = EADDRINUSE;
7036                 goto out_now;
7037         }
7038         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7039                 SCTP_INP_RLOCK(inp);
7040                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
7041                 SCTP_INP_RUNLOCK(inp);
7042         } else {
7043                 /*
7044                  * We increment here since sctp_findassociation_ep_addr()
7045                  * will do a decrement if it finds the stcb as long as the
7046                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
7047                  */
7048                 SCTP_INP_INCR_REF(inp);
7049                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
7050                 if (stcb == NULL) {
7051                         SCTP_INP_DECR_REF(inp);
7052                 } else {
7053                         SCTP_TCB_UNLOCK(stcb);
7054                 }
7055         }
7056         if (stcb != NULL) {
7057                 /* Already have or am bring up an association */
7058                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
7059                 error = EALREADY;
7060                 goto out_now;
7061         }
7062
7063         vrf_id = inp->def_vrf_id;
7064         /* We are GOOD to go */
7065         stcb = sctp_aloc_assoc_connected(inp, addr, &error, 0, 0, vrf_id,
7066             inp->sctp_ep.pre_open_stream_count,
7067             inp->sctp_ep.port, p,
7068             SCTP_INITIALIZE_AUTH_PARAMS);
7069         if (stcb == NULL) {
7070                 /* Gak! no memory */
7071                 goto out_now;
7072         }
7073         SCTP_SET_STATE(stcb, SCTP_STATE_COOKIE_WAIT);
7074         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
7075
7076         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
7077         SCTP_TCB_UNLOCK(stcb);
7078 out_now:
7079         NET_EPOCH_EXIT(et);
7080         if (create_lock_on) {
7081                 SCTP_ASOC_CREATE_UNLOCK(inp);
7082         }
7083         SCTP_INP_DECR_REF(inp);
7084         return (error);
7085 }
7086 #endif
7087
7088 int
7089 sctp_listen(struct socket *so, int backlog, struct thread *p)
7090 {
7091         /*
7092          * Note this module depends on the protocol processing being called
7093          * AFTER any socket level flags and backlog are applied to the
7094          * socket. The traditional way that the socket flags are applied is
7095          * AFTER protocol processing. We have made a change to the
7096          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
7097          * place if the socket API for SCTP is to work properly.
7098          */
7099
7100         int error = 0;
7101         struct sctp_inpcb *inp;
7102
7103         inp = (struct sctp_inpcb *)so->so_pcb;
7104         if (inp == NULL) {
7105                 /* I made the same as TCP since we are not setup? */
7106                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7107                 return (ECONNRESET);
7108         }
7109         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7110                 /* See if we have a listener */
7111                 struct sctp_inpcb *tinp;
7112                 union sctp_sockstore store;
7113
7114                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7115                         /* not bound all */
7116                         struct sctp_laddr *laddr;
7117
7118                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7119                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7120                                 switch (store.sa.sa_family) {
7121 #ifdef INET
7122                                 case AF_INET:
7123                                         store.sin.sin_port = inp->sctp_lport;
7124                                         break;
7125 #endif
7126 #ifdef INET6
7127                                 case AF_INET6:
7128                                         store.sin6.sin6_port = inp->sctp_lport;
7129                                         break;
7130 #endif
7131                                 default:
7132                                         break;
7133                                 }
7134                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7135                                 if (tinp && (tinp != inp) &&
7136                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7137                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7138                                     (SCTP_IS_LISTENING(tinp))) {
7139                                         /*
7140                                          * we have a listener already and
7141                                          * its not this inp.
7142                                          */
7143                                         SCTP_INP_DECR_REF(tinp);
7144                                         return (EADDRINUSE);
7145                                 } else if (tinp) {
7146                                         SCTP_INP_DECR_REF(tinp);
7147                                 }
7148                         }
7149                 } else {
7150                         /* Setup a local addr bound all */
7151                         memset(&store, 0, sizeof(store));
7152 #ifdef INET6
7153                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7154                                 store.sa.sa_family = AF_INET6;
7155                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7156                         }
7157 #endif
7158 #ifdef INET
7159                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7160                                 store.sa.sa_family = AF_INET;
7161                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7162                         }
7163 #endif
7164                         switch (store.sa.sa_family) {
7165 #ifdef INET
7166                         case AF_INET:
7167                                 store.sin.sin_port = inp->sctp_lport;
7168                                 break;
7169 #endif
7170 #ifdef INET6
7171                         case AF_INET6:
7172                                 store.sin6.sin6_port = inp->sctp_lport;
7173                                 break;
7174 #endif
7175                         default:
7176                                 break;
7177                         }
7178                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7179                         if (tinp && (tinp != inp) &&
7180                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7181                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7182                             (SCTP_IS_LISTENING(tinp))) {
7183                                 /*
7184                                  * we have a listener already and its not
7185                                  * this inp.
7186                                  */
7187                                 SCTP_INP_DECR_REF(tinp);
7188                                 return (EADDRINUSE);
7189                         } else if (tinp) {
7190                                 SCTP_INP_DECR_REF(tinp);
7191                         }
7192                 }
7193         }
7194         SCTP_INP_INFO_WLOCK();
7195         SCTP_INP_WLOCK(inp);
7196 #ifdef SCTP_LOCK_LOGGING
7197         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7198                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7199         }
7200 #endif
7201         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7202             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7203                 /*
7204                  * The unlucky case - We are in the tcp pool with this guy.
7205                  * - Someone else is in the main inp slot. - We must move
7206                  * this guy (the listener) to the main slot - We must then
7207                  * move the guy that was listener to the TCP Pool.
7208                  */
7209                 if (sctp_swap_inpcb_for_listen(inp)) {
7210                         error = EADDRINUSE;
7211                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7212                         goto out;
7213                 }
7214         }
7215         SOCK_LOCK(so);
7216         error = solisten_proto_check(so);
7217         if (error) {
7218                 SOCK_UNLOCK(so);
7219                 goto out;
7220         }
7221         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7222             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7223                 SOCK_UNLOCK(so);
7224                 solisten_proto_abort(so);
7225                 error = EADDRINUSE;
7226                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
7227                 goto out;
7228         }
7229         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7230                 if ((error = sctp_inpcb_bind_locked(inp, NULL, NULL, p))) {
7231                         SOCK_UNLOCK(so);
7232                         solisten_proto_abort(so);
7233                         /* bind error, probably perm */
7234                         goto out;
7235                 }
7236         }
7237         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) == 0) {
7238                 solisten_proto(so, backlog);
7239                 SOCK_UNLOCK(so);
7240                 inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7241         } else {
7242                 solisten_proto_abort(so);
7243                 SOCK_UNLOCK(so);
7244                 if (backlog > 0) {
7245                         inp->sctp_flags |= SCTP_PCB_FLAGS_ACCEPTING;
7246                 } else {
7247                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_ACCEPTING;
7248                 }
7249         }
7250 out:
7251         SCTP_INP_WUNLOCK(inp);
7252         SCTP_INP_INFO_WUNLOCK();
7253         return (error);
7254 }
7255
7256 static int sctp_defered_wakeup_cnt = 0;
7257
7258 int
7259 sctp_accept(struct socket *so, struct sockaddr **addr)
7260 {
7261         struct sctp_tcb *stcb;
7262         struct sctp_inpcb *inp;
7263         union sctp_sockstore store;
7264 #ifdef INET6
7265         int error;
7266 #endif
7267         inp = (struct sctp_inpcb *)so->so_pcb;
7268
7269         if (inp == NULL) {
7270                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7271                 return (ECONNRESET);
7272         }
7273         SCTP_INP_WLOCK(inp);
7274         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7275                 SCTP_INP_WUNLOCK(inp);
7276                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7277                 return (EOPNOTSUPP);
7278         }
7279         if (so->so_state & SS_ISDISCONNECTED) {
7280                 SCTP_INP_WUNLOCK(inp);
7281                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7282                 return (ECONNABORTED);
7283         }
7284         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7285         if (stcb == NULL) {
7286                 SCTP_INP_WUNLOCK(inp);
7287                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7288                 return (ECONNRESET);
7289         }
7290         SCTP_TCB_LOCK(stcb);
7291         store = stcb->asoc.primary_destination->ro._l_addr;
7292         SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_IN_ACCEPT_QUEUE);
7293         /* Wake any delayed sleep action */
7294         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7295                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7296                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7297                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7298                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7299                         if (sowriteable(inp->sctp_socket)) {
7300                                 sowwakeup_locked(inp->sctp_socket);
7301                         } else {
7302                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7303                         }
7304                 }
7305                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7306                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7307                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7308                         if (soreadable(inp->sctp_socket)) {
7309                                 sctp_defered_wakeup_cnt++;
7310                                 sorwakeup_locked(inp->sctp_socket);
7311                         } else {
7312                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7313                         }
7314                 }
7315         }
7316         SCTP_INP_WUNLOCK(inp);
7317         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7318                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7319                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7320         } else {
7321                 SCTP_TCB_UNLOCK(stcb);
7322         }
7323         switch (store.sa.sa_family) {
7324 #ifdef INET
7325         case AF_INET:
7326                 {
7327                         struct sockaddr_in *sin;
7328
7329                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7330                         if (sin == NULL)
7331                                 return (ENOMEM);
7332                         sin->sin_family = AF_INET;
7333                         sin->sin_len = sizeof(*sin);
7334                         sin->sin_port = store.sin.sin_port;
7335                         sin->sin_addr = store.sin.sin_addr;
7336                         *addr = (struct sockaddr *)sin;
7337                         break;
7338                 }
7339 #endif
7340 #ifdef INET6
7341         case AF_INET6:
7342                 {
7343                         struct sockaddr_in6 *sin6;
7344
7345                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7346                         if (sin6 == NULL)
7347                                 return (ENOMEM);
7348                         sin6->sin6_family = AF_INET6;
7349                         sin6->sin6_len = sizeof(*sin6);
7350                         sin6->sin6_port = store.sin6.sin6_port;
7351                         sin6->sin6_addr = store.sin6.sin6_addr;
7352                         if ((error = sa6_recoverscope(sin6)) != 0) {
7353                                 SCTP_FREE_SONAME(sin6);
7354                                 return (error);
7355                         }
7356                         *addr = (struct sockaddr *)sin6;
7357                         break;
7358                 }
7359 #endif
7360         default:
7361                 /* TSNH */
7362                 break;
7363         }
7364         return (0);
7365 }
7366
7367 #ifdef INET
7368 int
7369 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7370 {
7371         struct sockaddr_in *sin;
7372         uint32_t vrf_id;
7373         struct sctp_inpcb *inp;
7374         struct sctp_ifa *sctp_ifa;
7375
7376         /*
7377          * Do the malloc first in case it blocks.
7378          */
7379         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7380         if (sin == NULL)
7381                 return (ENOMEM);
7382         sin->sin_family = AF_INET;
7383         sin->sin_len = sizeof(*sin);
7384         inp = (struct sctp_inpcb *)so->so_pcb;
7385         if (!inp) {
7386                 SCTP_FREE_SONAME(sin);
7387                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7388                 return (ECONNRESET);
7389         }
7390         SCTP_INP_RLOCK(inp);
7391         sin->sin_port = inp->sctp_lport;
7392         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7393                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7394                         struct sctp_tcb *stcb;
7395                         struct sockaddr_in *sin_a;
7396                         struct sctp_nets *net;
7397                         int fnd;
7398
7399                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7400                         if (stcb == NULL) {
7401                                 goto notConn;
7402                         }
7403                         fnd = 0;
7404                         sin_a = NULL;
7405                         SCTP_TCB_LOCK(stcb);
7406                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7407                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7408                                 if (sin_a == NULL)
7409                                         /* this will make coverity happy */
7410                                         continue;
7411
7412                                 if (sin_a->sin_family == AF_INET) {
7413                                         fnd = 1;
7414                                         break;
7415                                 }
7416                         }
7417                         if ((!fnd) || (sin_a == NULL)) {
7418                                 /* punt */
7419                                 SCTP_TCB_UNLOCK(stcb);
7420                                 goto notConn;
7421                         }
7422
7423                         vrf_id = inp->def_vrf_id;
7424                         sctp_ifa = sctp_source_address_selection(inp,
7425                             stcb,
7426                             (sctp_route_t *)&net->ro,
7427                             net, 0, vrf_id);
7428                         if (sctp_ifa) {
7429                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7430                                 sctp_free_ifa(sctp_ifa);
7431                         }
7432                         SCTP_TCB_UNLOCK(stcb);
7433                 } else {
7434                         /* For the bound all case you get back 0 */
7435         notConn:
7436                         sin->sin_addr.s_addr = 0;
7437                 }
7438
7439         } else {
7440                 /* Take the first IPv4 address in the list */
7441                 struct sctp_laddr *laddr;
7442                 int fnd = 0;
7443
7444                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7445                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7446                                 struct sockaddr_in *sin_a;
7447
7448                                 sin_a = &laddr->ifa->address.sin;
7449                                 sin->sin_addr = sin_a->sin_addr;
7450                                 fnd = 1;
7451                                 break;
7452                         }
7453                 }
7454                 if (!fnd) {
7455                         SCTP_FREE_SONAME(sin);
7456                         SCTP_INP_RUNLOCK(inp);
7457                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7458                         return (ENOENT);
7459                 }
7460         }
7461         SCTP_INP_RUNLOCK(inp);
7462         (*addr) = (struct sockaddr *)sin;
7463         return (0);
7464 }
7465
7466 int
7467 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7468 {
7469         struct sockaddr_in *sin;
7470         int fnd;
7471         struct sockaddr_in *sin_a;
7472         struct sctp_inpcb *inp;
7473         struct sctp_tcb *stcb;
7474         struct sctp_nets *net;
7475
7476         /* Do the malloc first in case it blocks. */
7477         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7478         if (sin == NULL)
7479                 return (ENOMEM);
7480         sin->sin_family = AF_INET;
7481         sin->sin_len = sizeof(*sin);
7482
7483         inp = (struct sctp_inpcb *)so->so_pcb;
7484         if ((inp == NULL) ||
7485             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7486                 /* UDP type and listeners will drop out here */
7487                 SCTP_FREE_SONAME(sin);
7488                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7489                 return (ENOTCONN);
7490         }
7491         SCTP_INP_RLOCK(inp);
7492         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7493         if (stcb) {
7494                 SCTP_TCB_LOCK(stcb);
7495         }
7496         SCTP_INP_RUNLOCK(inp);
7497         if (stcb == NULL) {
7498                 SCTP_FREE_SONAME(sin);
7499                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7500                 return (ECONNRESET);
7501         }
7502         fnd = 0;
7503         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7504                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7505                 if (sin_a->sin_family == AF_INET) {
7506                         fnd = 1;
7507                         sin->sin_port = stcb->rport;
7508                         sin->sin_addr = sin_a->sin_addr;
7509                         break;
7510                 }
7511         }
7512         SCTP_TCB_UNLOCK(stcb);
7513         if (!fnd) {
7514                 /* No IPv4 address */
7515                 SCTP_FREE_SONAME(sin);
7516                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7517                 return (ENOENT);
7518         }
7519         (*addr) = (struct sockaddr *)sin;
7520         return (0);
7521 }
7522
7523 struct pr_usrreqs sctp_usrreqs = {
7524         .pru_abort = sctp_abort,
7525         .pru_accept = sctp_accept,
7526         .pru_attach = sctp_attach,
7527         .pru_bind = sctp_bind,
7528         .pru_connect = sctp_connect,
7529         .pru_control = in_control,
7530         .pru_close = sctp_close,
7531         .pru_detach = sctp_close,
7532         .pru_sopoll = sopoll_generic,
7533         .pru_flush = sctp_flush,
7534         .pru_disconnect = sctp_disconnect,
7535         .pru_listen = sctp_listen,
7536         .pru_peeraddr = sctp_peeraddr,
7537         .pru_send = sctp_sendm,
7538         .pru_shutdown = sctp_shutdown,
7539         .pru_sockaddr = sctp_ingetaddr,
7540         .pru_sosend = sctp_sosend,
7541         .pru_soreceive = sctp_soreceive
7542 };
7543 #endif