sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern struct sctp_cc_functions sctp_cc_functions[];
  58 extern struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 void
  93 sctp_finish(void)
  94 {
  95         sctp_pcb_finish();
  96 }
  97
  98
  99
 100 void
 101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 102 {
 103         struct sctp_tmit_chunk *chk;
 104         uint16_t overhead;
 105
 106         /* Adjust that too */
 107         stcb->asoc.smallest_mtu = nxtsz;
 108         /* now off to subtract IP_DF flag if needed */
 109         overhead = IP_HDR_SIZE;
 110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 112         }
 113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 114                 if ((chk->send_size + overhead) > nxtsz) {
 115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 116                 }
 117         }
 118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 119                 if ((chk->send_size + overhead) > nxtsz) {
 120                         /*
 121                          * For this guy we also mark for immediate resend
 122                          * since we sent to big of chunk
 123                          */
 124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 126                                 sctp_flight_size_decrease(chk);
 127                                 sctp_total_flight_decrease(stcb, chk);
 128                         }
 129                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
 130                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 131                         }
 132                         chk->sent = SCTP_DATAGRAM_RESEND;
 133                         chk->rec.data.doing_fast_retransmit = 0;
 134                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 135                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 136                                     chk->whoTo->flight_size,
 137                                     chk->book_size,
 138                                     (uintptr_t) chk->whoTo,
 139                                     chk->rec.data.TSN_seq);
 140                         }
 141                         /* Clear any time so NO RTT is being done */
 142                         chk->do_rtt = 0;
 143                 }
 144         }
 145 }
 146
 147 #ifdef INET
 148 static void
 149 sctp_notify_mbuf(struct sctp_inpcb *inp,
 150     struct sctp_tcb *stcb,
 151     struct sctp_nets *net,
 152     struct ip *ip,
 153     struct sctphdr *sh)
 154 {
 155         struct icmp *icmph;
 156         int totsz, tmr_stopped = 0;
 157         uint16_t nxtsz;
 158
 159         /* protection */
 160         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 161             (ip == NULL) || (sh == NULL)) {
 162                 if (stcb != NULL) {
 163                         SCTP_TCB_UNLOCK(stcb);
 164                 }
 165                 return;
 166         }
 167         /* First job is to verify the vtag matches what I would send */
 168         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 169                 SCTP_TCB_UNLOCK(stcb);
 170                 return;
 171         }
 172         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 173             sizeof(struct ip)));
 174         if (icmph->icmp_type != ICMP_UNREACH) {
 175                 /* We only care about unreachable */
 176                 SCTP_TCB_UNLOCK(stcb);
 177                 return;
 178         }
 179         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 180                 /* not a unreachable message due to frag. */
 181                 SCTP_TCB_UNLOCK(stcb);
 182                 return;
 183         }
 184         totsz = ntohs(ip->ip_len);
 185
 186         nxtsz = ntohs(icmph->icmp_nextmtu);
 187         if (nxtsz == 0) {
 188                 /*
 189                  * old type router that does not tell us what the next size
 190                  * mtu is. Rats we will have to guess (in a educated fashion
 191                  * of course)
 192                  */
 193                 nxtsz = sctp_get_prev_mtu(totsz);
 194         }
 195         /* Stop any PMTU timer */
 196         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 197                 tmr_stopped = 1;
 198                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 199                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 200         }
 201         /* Adjust destination size limit */
 202         if (net->mtu > nxtsz) {
 203                 net->mtu = nxtsz;
 204                 if (net->port) {
 205                         net->mtu -= sizeof(struct udphdr);
 206                 }
 207         }
 208         /* now what about the ep? */
 209         if (stcb->asoc.smallest_mtu > nxtsz) {
 210                 sctp_pathmtu_adjustment(stcb, nxtsz);
 211         }
 212         if (tmr_stopped)
 213                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 214
 215         SCTP_TCB_UNLOCK(stcb);
 216 }
 217
 218 void
 219 sctp_notify(struct sctp_inpcb *inp,
 220     struct ip *ip,
 221     struct sctphdr *sh,
 222     struct sockaddr *to,
 223     struct sctp_tcb *stcb,
 224     struct sctp_nets *net)
 225 {
 226 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 227         struct socket *so;
 228
 229 #endif
 230         struct icmp *icmph;
 231
 232         /* protection */
 233         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 234             (sh == NULL) || (to == NULL)) {
 235                 if (stcb)
 236                         SCTP_TCB_UNLOCK(stcb);
 237                 return;
 238         }
 239         /* First job is to verify the vtag matches what I would send */
 240         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 241                 SCTP_TCB_UNLOCK(stcb);
 242                 return;
 243         }
 244         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 245             sizeof(struct ip)));
 246         if (icmph->icmp_type != ICMP_UNREACH) {
 247                 /* We only care about unreachable */
 248                 SCTP_TCB_UNLOCK(stcb);
 249                 return;
 250         }
 251         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 252             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 253             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 254             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 255             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 256             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 257             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 258             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 259
 260                 /*
 261                  * Hmm reachablity problems we must examine closely. If its
 262                  * not reachable, we may have lost a network. Or if there is
 263                  * NO protocol at the other end named SCTP. well we consider
 264                  * it a OOTB abort.
 265                  */
 266                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 267                         /* Ok that destination is NOT reachable */
 268                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 269                         net->dest_state &= ~SCTP_ADDR_PF;
 270                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 271                             stcb, 0,
 272                             (void *)net, SCTP_SO_NOT_LOCKED);
 273                 }
 274                 SCTP_TCB_UNLOCK(stcb);
 275         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 276             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 277                 /*
 278                  * Here the peer is either playing tricks on us, including
 279                  * an address that belongs to someone who does not support
 280                  * SCTP OR was a userland implementation that shutdown and
 281                  * now is dead. In either case treat it like a OOTB abort
 282                  * with no TCB
 283                  */
 284                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 285 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 286                 so = SCTP_INP_SO(inp);
 287                 atomic_add_int(&stcb->asoc.refcnt, 1);
 288                 SCTP_TCB_UNLOCK(stcb);
 289                 SCTP_SOCKET_LOCK(so, 1);
 290                 SCTP_TCB_LOCK(stcb);
 291                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 292 #endif
 293                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 294 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 295                 SCTP_SOCKET_UNLOCK(so, 1);
 296                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 297 #endif
 298                 /* no need to unlock here, since the TCB is gone */
 299         } else {
 300                 SCTP_TCB_UNLOCK(stcb);
 301         }
 302 }
 303
 304 #endif
 305
 306 #ifdef INET
 307 void
 308 sctp_ctlinput(cmd, sa, vip)
 309         int cmd;
 310         struct sockaddr *sa;
 311         void *vip;
 312 {
 313         struct ip *ip = vip;
 314         struct sctphdr *sh;
 315         uint32_t vrf_id;
 316
 317         /* FIX, for non-bsd is this right? */
 318         vrf_id = SCTP_DEFAULT_VRFID;
 319         if (sa->sa_family != AF_INET ||
 320             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 321                 return;
 322         }
 323         if (PRC_IS_REDIRECT(cmd)) {
 324                 ip = 0;
 325         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 326                 return;
 327         }
 328         if (ip) {
 329                 struct sctp_inpcb *inp = NULL;
 330                 struct sctp_tcb *stcb = NULL;
 331                 struct sctp_nets *net = NULL;
 332                 struct sockaddr_in to, from;
 333
 334                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 335                 bzero(&to, sizeof(to));
 336                 bzero(&from, sizeof(from));
 337                 from.sin_family = to.sin_family = AF_INET;
 338                 from.sin_len = to.sin_len = sizeof(to);
 339                 from.sin_port = sh->src_port;
 340                 from.sin_addr = ip->ip_src;
 341                 to.sin_port = sh->dest_port;
 342                 to.sin_addr = ip->ip_dst;
 343
 344                 /*
 345                  * 'to' holds the dest of the packet that failed to be sent.
 346                  * 'from' holds our local endpoint address. Thus we reverse
 347                  * the to and the from in the lookup.
 348                  */
 349                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
 350                     (struct sockaddr *)&from,
 351                     &inp, &net, 1, vrf_id);
 352                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 353                         if (cmd != PRC_MSGSIZE) {
 354                                 sctp_notify(inp, ip, sh,
 355                                     (struct sockaddr *)&to, stcb,
 356                                     net);
 357                         } else {
 358                                 /* handle possible ICMP size messages */
 359                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 360                         }
 361                 } else {
 362                         if ((stcb == NULL) && (inp != NULL)) {
 363                                 /* reduce ref-count */
 364                                 SCTP_INP_WLOCK(inp);
 365                                 SCTP_INP_DECR_REF(inp);
 366                                 SCTP_INP_WUNLOCK(inp);
 367                         }
 368                         if (stcb) {
 369                                 SCTP_TCB_UNLOCK(stcb);
 370                         }
 371                 }
 372         }
 373         return;
 374 }
 375
 376 #endif
 377
 378 static int
 379 sctp_getcred(SYSCTL_HANDLER_ARGS)
 380 {
 381         struct xucred xuc;
 382         struct sockaddr_in addrs[2];
 383         struct sctp_inpcb *inp;
 384         struct sctp_nets *net;
 385         struct sctp_tcb *stcb;
 386         int error;
 387         uint32_t vrf_id;
 388
 389         /* FIX, for non-bsd is this right? */
 390         vrf_id = SCTP_DEFAULT_VRFID;
 391
 392         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 393
 394         if (error)
 395                 return (error);
 396
 397         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 398         if (error)
 399                 return (error);
 400
 401         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 402             sintosa(&addrs[0]),
 403             &inp, &net, 1, vrf_id);
 404         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 405                 if ((inp != NULL) && (stcb == NULL)) {
 406                         /* reduce ref-count */
 407                         SCTP_INP_WLOCK(inp);
 408                         SCTP_INP_DECR_REF(inp);
 409                         goto cred_can_cont;
 410                 }
 411                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 412                 error = ENOENT;
 413                 goto out;
 414         }
 415         SCTP_TCB_UNLOCK(stcb);
 416         /*
 417          * We use the write lock here, only since in the error leg we need
 418          * it. If we used RLOCK, then we would have to
 419          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 420          * Better to use higher wlock.
 421          */
 422         SCTP_INP_WLOCK(inp);
 423 cred_can_cont:
 424         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 425         if (error) {
 426                 SCTP_INP_WUNLOCK(inp);
 427                 goto out;
 428         }
 429         cru2x(inp->sctp_socket->so_cred, &xuc);
 430         SCTP_INP_WUNLOCK(inp);
 431         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 432 out:
 433         return (error);
 434 }
 435
 436 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 437     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 438
 439
 440 #ifdef INET
 441 static void
 442 sctp_abort(struct socket *so)
 443 {
 444         struct sctp_inpcb *inp;
 445         uint32_t flags;
 446
 447         inp = (struct sctp_inpcb *)so->so_pcb;
 448         if (inp == NULL) {
 449                 return;
 450         }
 451 sctp_must_try_again:
 452         flags = inp->sctp_flags;
 453 #ifdef SCTP_LOG_CLOSING
 454         sctp_log_closing(inp, NULL, 17);
 455 #endif
 456         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 457             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 458 #ifdef SCTP_LOG_CLOSING
 459                 sctp_log_closing(inp, NULL, 16);
 460 #endif
 461                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 462                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 463                 SOCK_LOCK(so);
 464                 SCTP_SB_CLEAR(so->so_snd);
 465                 /*
 466                  * same for the rcv ones, they are only here for the
 467                  * accounting/select.
 468                  */
 469                 SCTP_SB_CLEAR(so->so_rcv);
 470
 471                 /* Now null out the reference, we are completely detached. */
 472                 so->so_pcb = NULL;
 473                 SOCK_UNLOCK(so);
 474         } else {
 475                 flags = inp->sctp_flags;
 476                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 477                         goto sctp_must_try_again;
 478                 }
 479         }
 480         return;
 481 }
 482
 483 static int
 484 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 485 {
 486         struct sctp_inpcb *inp;
 487         struct inpcb *ip_inp;
 488         int error;
 489         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 490
 491 #ifdef IPSEC
 492         uint32_t flags;
 493
 494 #endif
 495
 496         inp = (struct sctp_inpcb *)so->so_pcb;
 497         if (inp != 0) {
 498                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 499                 return (EINVAL);
 500         }
 501         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 502                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 503                 if (error) {
 504                         return (error);
 505                 }
 506         }
 507         error = sctp_inpcb_alloc(so, vrf_id);
 508         if (error) {
 509                 return (error);
 510         }
 511         inp = (struct sctp_inpcb *)so->so_pcb;
 512         SCTP_INP_WLOCK(inp);
 513         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 514         ip_inp = &inp->ip_inp.inp;
 515         ip_inp->inp_vflag |= INP_IPV4;
 516         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 517 #ifdef IPSEC
 518         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 519 #ifdef SCTP_LOG_CLOSING
 520         sctp_log_closing(inp, NULL, 17);
 521 #endif
 522         if (error != 0) {
 523 try_again:
 524                 flags = inp->sctp_flags;
 525                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 526                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 527 #ifdef SCTP_LOG_CLOSING
 528                         sctp_log_closing(inp, NULL, 15);
 529 #endif
 530                         SCTP_INP_WUNLOCK(inp);
 531                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 532                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 533                 } else {
 534                         flags = inp->sctp_flags;
 535                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 536                                 goto try_again;
 537                         } else {
 538                                 SCTP_INP_WUNLOCK(inp);
 539                         }
 540                 }
 541                 return (error);
 542         }
 543 #endif                          /* IPSEC */
 544         SCTP_INP_WUNLOCK(inp);
 545         return (0);
 546 }
 547
 548 static int
 549 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 550 {
 551         struct sctp_inpcb *inp;
 552
 553         inp = (struct sctp_inpcb *)so->so_pcb;
 554         if (inp == NULL) {
 555                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 556                 return (EINVAL);
 557         }
 558         if (addr != NULL) {
 559                 if ((addr->sa_family != AF_INET) ||
 560                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 561                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 562                         return (EINVAL);
 563                 }
 564         }
 565         return (sctp_inpcb_bind(so, addr, NULL, p));
 566 }
 567
 568 #endif
 569 void
 570 sctp_close(struct socket *so)
 571 {
 572         struct sctp_inpcb *inp;
 573         uint32_t flags;
 574
 575         inp = (struct sctp_inpcb *)so->so_pcb;
 576         if (inp == NULL)
 577                 return;
 578
 579         /*
 580          * Inform all the lower layer assoc that we are done.
 581          */
 582 sctp_must_try_again:
 583         flags = inp->sctp_flags;
 584 #ifdef SCTP_LOG_CLOSING
 585         sctp_log_closing(inp, NULL, 17);
 586 #endif
 587         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 588             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 589                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 590                     (so->so_rcv.sb_cc > 0)) {
 591 #ifdef SCTP_LOG_CLOSING
 592                         sctp_log_closing(inp, NULL, 13);
 593 #endif
 594                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 595                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 596                 } else {
 597 #ifdef SCTP_LOG_CLOSING
 598                         sctp_log_closing(inp, NULL, 14);
 599 #endif
 600                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 601                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 602                 }
 603                 /*
 604                  * The socket is now detached, no matter what the state of
 605                  * the SCTP association.
 606                  */
 607                 SOCK_LOCK(so);
 608                 SCTP_SB_CLEAR(so->so_snd);
 609                 /*
 610                  * same for the rcv ones, they are only here for the
 611                  * accounting/select.
 612                  */
 613                 SCTP_SB_CLEAR(so->so_rcv);
 614
 615                 /* Now null out the reference, we are completely detached. */
 616                 so->so_pcb = NULL;
 617                 SOCK_UNLOCK(so);
 618         } else {
 619                 flags = inp->sctp_flags;
 620                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 621                         goto sctp_must_try_again;
 622                 }
 623         }
 624         return;
 625 }
 626
 627
 628 int
 629 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 630     struct mbuf *control, struct thread *p);
 631
 632
 633 int
 634 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 635     struct mbuf *control, struct thread *p)
 636 {
 637         struct sctp_inpcb *inp;
 638         int error;
 639
 640         inp = (struct sctp_inpcb *)so->so_pcb;
 641         if (inp == NULL) {
 642                 if (control) {
 643                         sctp_m_freem(control);
 644                         control = NULL;
 645                 }
 646                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 647                 sctp_m_freem(m);
 648                 return (EINVAL);
 649         }
 650         /* Got to have an to address if we are NOT a connected socket */
 651         if ((addr == NULL) &&
 652             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 653             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 654                 goto connected_type;
 655         } else if (addr == NULL) {
 656                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 657                 error = EDESTADDRREQ;
 658                 sctp_m_freem(m);
 659                 if (control) {
 660                         sctp_m_freem(control);
 661                         control = NULL;
 662                 }
 663                 return (error);
 664         }
 665 #ifdef INET6
 666         if (addr->sa_family != AF_INET) {
 667                 /* must be a v4 address! */
 668                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 669                 sctp_m_freem(m);
 670                 if (control) {
 671                         sctp_m_freem(control);
 672                         control = NULL;
 673                 }
 674                 error = EDESTADDRREQ;
 675                 return (error);
 676         }
 677 #endif                          /* INET6 */
 678 connected_type:
 679         /* now what about control */
 680         if (control) {
 681                 if (inp->control) {
 682                         SCTP_PRINTF("huh? control set?\n");
 683                         sctp_m_freem(inp->control);
 684                         inp->control = NULL;
 685                 }
 686                 inp->control = control;
 687         }
 688         /* Place the data */
 689         if (inp->pkt) {
 690                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 691                 inp->pkt_last = m;
 692         } else {
 693                 inp->pkt_last = inp->pkt = m;
 694         }
 695         if (
 696         /* FreeBSD uses a flag passed */
 697             ((flags & PRUS_MORETOCOME) == 0)
 698             ) {
 699                 /*
 700                  * note with the current version this code will only be used
 701                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 702                  * re-defining sosend to use the sctp_sosend. One can
 703                  * optionally switch back to this code (by changing back the
 704                  * definitions) but this is not advisable. This code is used
 705                  * by FreeBSD when sending a file with sendfile() though.
 706                  */
 707                 int ret;
 708
 709                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 710                 inp->pkt = NULL;
 711                 inp->control = NULL;
 712                 return (ret);
 713         } else {
 714                 return (0);
 715         }
 716 }
 717
 718 int
 719 sctp_disconnect(struct socket *so)
 720 {
 721         struct sctp_inpcb *inp;
 722
 723         inp = (struct sctp_inpcb *)so->so_pcb;
 724         if (inp == NULL) {
 725                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 726                 return (ENOTCONN);
 727         }
 728         SCTP_INP_RLOCK(inp);
 729         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 730             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 731                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 732                         /* No connection */
 733                         SCTP_INP_RUNLOCK(inp);
 734                         return (0);
 735                 } else {
 736                         struct sctp_association *asoc;
 737                         struct sctp_tcb *stcb;
 738
 739                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 740                         if (stcb == NULL) {
 741                                 SCTP_INP_RUNLOCK(inp);
 742                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 743                                 return (EINVAL);
 744                         }
 745                         SCTP_TCB_LOCK(stcb);
 746                         asoc = &stcb->asoc;
 747                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 748                                 /* We are about to be freed, out of here */
 749                                 SCTP_TCB_UNLOCK(stcb);
 750                                 SCTP_INP_RUNLOCK(inp);
 751                                 return (0);
 752                         }
 753                         if (((so->so_options & SO_LINGER) &&
 754                             (so->so_linger == 0)) ||
 755                             (so->so_rcv.sb_cc > 0)) {
 756                                 if (SCTP_GET_STATE(asoc) !=
 757                                     SCTP_STATE_COOKIE_WAIT) {
 758                                         /* Left with Data unread */
 759                                         struct mbuf *err;
 760
 761                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 762                                         if (err) {
 763                                                 /*
 764                                                  * Fill in the user
 765                                                  * initiated abort
 766                                                  */
 767                                                 struct sctp_paramhdr *ph;
 768
 769                                                 ph = mtod(err, struct sctp_paramhdr *);
 770                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 771                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 772                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 773                                         }
 774                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 775                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 776                                 }
 777                                 SCTP_INP_RUNLOCK(inp);
 778                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 779                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 780                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 781                                 }
 782                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 783                                 /* No unlock tcb assoc is gone */
 784                                 return (0);
 785                         }
 786                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 787                             TAILQ_EMPTY(&asoc->sent_queue) &&
 788                             (asoc->stream_queue_cnt == 0)) {
 789                                 /* there is nothing queued to send, so done */
 790                                 if (asoc->locked_on_sending) {
 791                                         goto abort_anyway;
 792                                 }
 793                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 794                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 795                                         /* only send SHUTDOWN 1st time thru */
 796                                         struct sctp_nets *netp;
 797
 798                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 799                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 800                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 801                                         }
 802                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 803                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 804                                         sctp_stop_timers_for_shutdown(stcb);
 805                                         if (stcb->asoc.alternate) {
 806                                                 netp = stcb->asoc.alternate;
 807                                         } else {
 808                                                 netp = stcb->asoc.primary_destination;
 809                                         }
 810                                         sctp_send_shutdown(stcb, netp);
 811                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 812                                             stcb->sctp_ep, stcb, netp);
 813                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 814                                             stcb->sctp_ep, stcb, netp);
 815                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 816                                 }
 817                         } else {
 818                                 /*
 819                                  * we still got (or just got) data to send,
 820                                  * so set SHUTDOWN_PENDING
 821                                  */
 822                                 /*
 823                                  * XXX sockets draft says that SCTP_EOF
 824                                  * should be sent with no data. currently,
 825                                  * we will allow user data to be sent first
 826                                  * and move to SHUTDOWN-PENDING
 827                                  */
 828                                 struct sctp_nets *netp;
 829
 830                                 if (stcb->asoc.alternate) {
 831                                         netp = stcb->asoc.alternate;
 832                                 } else {
 833                                         netp = stcb->asoc.primary_destination;
 834                                 }
 835
 836                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 837                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 838                                     netp);
 839                                 if (asoc->locked_on_sending) {
 840                                         /* Locked to send out the data */
 841                                         struct sctp_stream_queue_pending *sp;
 842
 843                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 844                                         if (sp == NULL) {
 845                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 846                                                     asoc->locked_on_sending->stream_no);
 847                                         } else {
 848                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 849                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 850                                         }
 851                                 }
 852                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 853                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 854                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 855                                         struct mbuf *op_err;
 856
 857                         abort_anyway:
 858                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 859                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 860                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 861                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 862                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 863                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 864                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 865                                         }
 866                                         SCTP_INP_RUNLOCK(inp);
 867                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 868                                         return (0);
 869                                 } else {
 870                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 871                                 }
 872                         }
 873                         soisdisconnecting(so);
 874                         SCTP_TCB_UNLOCK(stcb);
 875                         SCTP_INP_RUNLOCK(inp);
 876                         return (0);
 877                 }
 878                 /* not reached */
 879         } else {
 880                 /* UDP model does not support this */
 881                 SCTP_INP_RUNLOCK(inp);
 882                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 883                 return (EOPNOTSUPP);
 884         }
 885 }
 886
 887 int
 888 sctp_flush(struct socket *so, int how)
 889 {
 890         /*
 891          * We will just clear out the values and let subsequent close clear
 892          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 893          * they will not be able to read the data, the socket will block
 894          * that from happening.
 895          */
 896         struct sctp_inpcb *inp;
 897
 898         inp = (struct sctp_inpcb *)so->so_pcb;
 899         if (inp == NULL) {
 900                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 901                 return (EINVAL);
 902         }
 903         SCTP_INP_RLOCK(inp);
 904         /* For the 1 to many model this does nothing */
 905         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 906                 SCTP_INP_RUNLOCK(inp);
 907                 return (0);
 908         }
 909         SCTP_INP_RUNLOCK(inp);
 910         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 911                 /*
 912                  * First make sure the sb will be happy, we don't use these
 913                  * except maybe the count
 914                  */
 915                 SCTP_INP_WLOCK(inp);
 916                 SCTP_INP_READ_LOCK(inp);
 917                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 918                 SCTP_INP_READ_UNLOCK(inp);
 919                 SCTP_INP_WUNLOCK(inp);
 920                 so->so_rcv.sb_cc = 0;
 921                 so->so_rcv.sb_mbcnt = 0;
 922                 so->so_rcv.sb_mb = NULL;
 923         }
 924         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 925                 /*
 926                  * First make sure the sb will be happy, we don't use these
 927                  * except maybe the count
 928                  */
 929                 so->so_snd.sb_cc = 0;
 930                 so->so_snd.sb_mbcnt = 0;
 931                 so->so_snd.sb_mb = NULL;
 932
 933         }
 934         return (0);
 935 }
 936
 937 int
 938 sctp_shutdown(struct socket *so)
 939 {
 940         struct sctp_inpcb *inp;
 941
 942         inp = (struct sctp_inpcb *)so->so_pcb;
 943         if (inp == NULL) {
 944                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 945                 return (EINVAL);
 946         }
 947         SCTP_INP_RLOCK(inp);
 948         /* For UDP model this is a invalid call */
 949         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 950             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 951                 /* Restore the flags that the soshutdown took away. */
 952                 SOCKBUF_LOCK(&so->so_rcv);
 953                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 954                 SOCKBUF_UNLOCK(&so->so_rcv);
 955                 /* This proc will wakeup for read and do nothing (I hope) */
 956                 SCTP_INP_RUNLOCK(inp);
 957                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 958                 return (EOPNOTSUPP);
 959         }
 960         /*
 961          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 962          * or SHUT_RDWR. This means we put the shutdown flag against it.
 963          */
 964         {
 965                 struct sctp_tcb *stcb;
 966                 struct sctp_association *asoc;
 967
 968                 if ((so->so_state &
 969                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 970                         SCTP_INP_RUNLOCK(inp);
 971                         return (ENOTCONN);
 972                 }
 973                 socantsendmore(so);
 974
 975                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 976                 if (stcb == NULL) {
 977                         /*
 978                          * Ok we hit the case that the shutdown call was
 979                          * made after an abort or something. Nothing to do
 980                          * now.
 981                          */
 982                         SCTP_INP_RUNLOCK(inp);
 983                         return (0);
 984                 }
 985                 SCTP_TCB_LOCK(stcb);
 986                 asoc = &stcb->asoc;
 987                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 988                     TAILQ_EMPTY(&asoc->sent_queue) &&
 989                     (asoc->stream_queue_cnt == 0)) {
 990                         if (asoc->locked_on_sending) {
 991                                 goto abort_anyway;
 992                         }
 993                         /* there is nothing queued to send, so I'm done... */
 994                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 995                                 /* only send SHUTDOWN the first time through */
 996                                 struct sctp_nets *netp;
 997
 998                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 999                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1000                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1001                                 }
1002                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1003                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1004                                 sctp_stop_timers_for_shutdown(stcb);
1005                                 if (stcb->asoc.alternate) {
1006                                         netp = stcb->asoc.alternate;
1007                                 } else {
1008                                         netp = stcb->asoc.primary_destination;
1009                                 }
1010                                 sctp_send_shutdown(stcb, netp);
1011                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1012                                     stcb->sctp_ep, stcb, netp);
1013                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1014                                     stcb->sctp_ep, stcb, netp);
1015                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1016                         }
1017                 } else {
1018                         /*
1019                          * we still got (or just got) data to send, so set
1020                          * SHUTDOWN_PENDING
1021                          */
1022                         struct sctp_nets *netp;
1023
1024                         if (stcb->asoc.alternate) {
1025                                 netp = stcb->asoc.alternate;
1026                         } else {
1027                                 netp = stcb->asoc.primary_destination;
1028                         }
1029
1030                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1031                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1032                             netp);
1033
1034                         if (asoc->locked_on_sending) {
1035                                 /* Locked to send out the data */
1036                                 struct sctp_stream_queue_pending *sp;
1037
1038                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1039                                 if (sp == NULL) {
1040                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1041                                             asoc->locked_on_sending->stream_no);
1042                                 } else {
1043                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1044                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1045                                         }
1046                                 }
1047                         }
1048                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1049                             TAILQ_EMPTY(&asoc->sent_queue) &&
1050                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1051                                 struct mbuf *op_err;
1052
1053                 abort_anyway:
1054                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
1055                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1056                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1057                                     op_err, SCTP_SO_LOCKED);
1058                                 goto skip_unlock;
1059                         } else {
1060                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1061                         }
1062                 }
1063                 SCTP_TCB_UNLOCK(stcb);
1064         }
1065 skip_unlock:
1066         SCTP_INP_RUNLOCK(inp);
1067         return (0);
1068 }
1069
1070 /*
1071  * copies a "user" presentable address and removes embedded scope, etc.
1072  * returns 0 on success, 1 on error
1073  */
1074 static uint32_t
1075 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1076 {
1077 #ifdef INET6
1078         struct sockaddr_in6 lsa6;
1079
1080         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1081             &lsa6);
1082 #endif
1083         memcpy(ss, sa, sa->sa_len);
1084         return (0);
1085 }
1086
1087
1088
1089 /*
1090  * NOTE: assumes addr lock is held
1091  */
1092 static size_t
1093 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1094     struct sctp_tcb *stcb,
1095     size_t limit,
1096     struct sockaddr_storage *sas,
1097     uint32_t vrf_id)
1098 {
1099         struct sctp_ifn *sctp_ifn;
1100         struct sctp_ifa *sctp_ifa;
1101         size_t actual;
1102         int loopback_scope;
1103
1104 #if defined(INET)
1105         int ipv4_local_scope, ipv4_addr_legal;
1106
1107 #endif
1108 #if defined(INET6)
1109         int local_scope, site_scope, ipv6_addr_legal;
1110
1111 #endif
1112         struct sctp_vrf *vrf;
1113
1114         actual = 0;
1115         if (limit <= 0)
1116                 return (actual);
1117
1118         if (stcb) {
1119                 /* Turn on all the appropriate scope */
1120                 loopback_scope = stcb->asoc.scope.loopback_scope;
1121 #if defined(INET)
1122                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1123                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1124 #endif
1125 #if defined(INET6)
1126                 local_scope = stcb->asoc.scope.local_scope;
1127                 site_scope = stcb->asoc.scope.site_scope;
1128                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1129 #endif
1130         } else {
1131                 /* Use generic values for endpoints. */
1132                 loopback_scope = 1;
1133 #if defined(INET)
1134                 ipv4_local_scope = 1;
1135 #endif
1136 #if defined(INET6)
1137                 local_scope = 1;
1138                 site_scope = 1;
1139 #endif
1140                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1141 #if defined(INET6)
1142                         ipv6_addr_legal = 1;
1143 #endif
1144 #if defined(INET)
1145                         if (SCTP_IPV6_V6ONLY(inp)) {
1146                                 ipv4_addr_legal = 0;
1147                         } else {
1148                                 ipv4_addr_legal = 1;
1149                         }
1150 #endif
1151                 } else {
1152 #if defined(INET6)
1153                         ipv6_addr_legal = 0;
1154 #endif
1155 #if defined(INET)
1156                         ipv4_addr_legal = 1;
1157 #endif
1158                 }
1159         }
1160         vrf = sctp_find_vrf(vrf_id);
1161         if (vrf == NULL) {
1162                 return (0);
1163         }
1164         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1165                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1166                         if ((loopback_scope == 0) &&
1167                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1168                                 /* Skip loopback if loopback_scope not set */
1169                                 continue;
1170                         }
1171                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1172                                 if (stcb) {
1173                                         /*
1174                                          * For the BOUND-ALL case, the list
1175                                          * associated with a TCB is Always
1176                                          * considered a reverse list.. i.e.
1177                                          * it lists addresses that are NOT
1178                                          * part of the association. If this
1179                                          * is one of those we must skip it.
1180                                          */
1181                                         if (sctp_is_addr_restricted(stcb,
1182                                             sctp_ifa)) {
1183                                                 continue;
1184                                         }
1185                                 }
1186                                 switch (sctp_ifa->address.sa.sa_family) {
1187 #ifdef INET
1188                                 case AF_INET:
1189                                         if (ipv4_addr_legal) {
1190                                                 struct sockaddr_in *sin;
1191
1192                                                 sin = &sctp_ifa->address.sin;
1193                                                 if (sin->sin_addr.s_addr == 0) {
1194                                                         /*
1195                                                          * we skip
1196                                                          * unspecifed
1197                                                          * addresses
1198                                                          */
1199                                                         continue;
1200                                                 }
1201                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1202                                                     &sin->sin_addr) != 0) {
1203                                                         continue;
1204                                                 }
1205                                                 if ((ipv4_local_scope == 0) &&
1206                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1207                                                         continue;
1208                                                 }
1209 #ifdef INET6
1210                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1211                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1212                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1213                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1214                                                         actual += sizeof(struct sockaddr_in6);
1215                                                 } else {
1216 #endif
1217                                                         memcpy(sas, sin, sizeof(*sin));
1218                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1219                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1220                                                         actual += sizeof(*sin);
1221 #ifdef INET6
1222                                                 }
1223 #endif
1224                                                 if (actual >= limit) {
1225                                                         return (actual);
1226                                                 }
1227                                         } else {
1228                                                 continue;
1229                                         }
1230                                         break;
1231 #endif
1232 #ifdef INET6
1233                                 case AF_INET6:
1234                                         if (ipv6_addr_legal) {
1235                                                 struct sockaddr_in6 *sin6;
1236
1237                                                 sin6 = &sctp_ifa->address.sin6;
1238                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1239                                                         /*
1240                                                          * we skip
1241                                                          * unspecifed
1242                                                          * addresses
1243                                                          */
1244                                                         continue;
1245                                                 }
1246                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1247                                                     &sin6->sin6_addr) != 0) {
1248                                                         continue;
1249                                                 }
1250                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1251                                                         if (local_scope == 0)
1252                                                                 continue;
1253                                                         if (sin6->sin6_scope_id == 0) {
1254                                                                 if (sa6_recoverscope(sin6) != 0)
1255                                                                         /*
1256                                                                          *
1257                                                                          * bad
1258                                                                          *
1259                                                                          * li
1260                                                                          * nk
1261                                                                          *
1262                                                                          * loc
1263                                                                          * al
1264                                                                          *
1265                                                                          * add
1266                                                                          * re
1267                                                                          * ss
1268                                                                          * */
1269                                                                         continue;
1270                                                         }
1271                                                 }
1272                                                 if ((site_scope == 0) &&
1273                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1274                                                         continue;
1275                                                 }
1276                                                 memcpy(sas, sin6, sizeof(*sin6));
1277                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1278                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1279                                                 actual += sizeof(*sin6);
1280                                                 if (actual >= limit) {
1281                                                         return (actual);
1282                                                 }
1283                                         } else {
1284                                                 continue;
1285                                         }
1286                                         break;
1287 #endif
1288                                 default:
1289                                         /* TSNH */
1290                                         break;
1291                                 }
1292                         }
1293                 }
1294         } else {
1295                 struct sctp_laddr *laddr;
1296
1297                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1298                         if (stcb) {
1299                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1300                                         continue;
1301                                 }
1302                         }
1303                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1304                                 continue;
1305                         switch (laddr->ifa->address.sa.sa_family) {
1306 #ifdef INET
1307                         case AF_INET:
1308                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1309                                 break;
1310 #endif
1311 #ifdef INET6
1312                         case AF_INET6:
1313                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1314                                 break;
1315 #endif
1316                         default:
1317                                 /* TSNH */
1318                                 break;
1319                         }
1320                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1321                             laddr->ifa->address.sa.sa_len);
1322                         actual += laddr->ifa->address.sa.sa_len;
1323                         if (actual >= limit) {
1324                                 return (actual);
1325                         }
1326                 }
1327         }
1328         return (actual);
1329 }
1330
1331 static size_t
1332 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1333     struct sctp_tcb *stcb,
1334     size_t limit,
1335     struct sockaddr_storage *sas)
1336 {
1337         size_t size = 0;
1338
1339         SCTP_IPI_ADDR_RLOCK();
1340         /* fill up addresses for the endpoint's default vrf */
1341         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1342             inp->def_vrf_id);
1343         SCTP_IPI_ADDR_RUNLOCK();
1344         return (size);
1345 }
1346
1347 /*
1348  * NOTE: assumes addr lock is held
1349  */
1350 static int
1351 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1352 {
1353         int cnt = 0;
1354         struct sctp_vrf *vrf = NULL;
1355
1356         /*
1357          * In both sub-set bound an bound_all cases we return the MAXIMUM
1358          * number of addresses that you COULD get. In reality the sub-set
1359          * bound may have an exclusion list for a given TCB OR in the
1360          * bound-all case a TCB may NOT include the loopback or other
1361          * addresses as well.
1362          */
1363         vrf = sctp_find_vrf(vrf_id);
1364         if (vrf == NULL) {
1365                 return (0);
1366         }
1367         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1368                 struct sctp_ifn *sctp_ifn;
1369                 struct sctp_ifa *sctp_ifa;
1370
1371                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1372                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1373                                 /* Count them if they are the right type */
1374                                 switch (sctp_ifa->address.sa.sa_family) {
1375 #ifdef INET
1376                                 case AF_INET:
1377 #ifdef INET6
1378                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1379                                                 cnt += sizeof(struct sockaddr_in6);
1380                                         else
1381                                                 cnt += sizeof(struct sockaddr_in);
1382 #else
1383                                         cnt += sizeof(struct sockaddr_in);
1384 #endif
1385                                         break;
1386 #endif
1387 #ifdef INET6
1388                                 case AF_INET6:
1389                                         cnt += sizeof(struct sockaddr_in6);
1390                                         break;
1391 #endif
1392                                 default:
1393                                         break;
1394                                 }
1395                         }
1396                 }
1397         } else {
1398                 struct sctp_laddr *laddr;
1399
1400                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1401                         switch (laddr->ifa->address.sa.sa_family) {
1402 #ifdef INET
1403                         case AF_INET:
1404 #ifdef INET6
1405                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1406                                         cnt += sizeof(struct sockaddr_in6);
1407                                 else
1408                                         cnt += sizeof(struct sockaddr_in);
1409 #else
1410                                 cnt += sizeof(struct sockaddr_in);
1411 #endif
1412                                 break;
1413 #endif
1414 #ifdef INET6
1415                         case AF_INET6:
1416                                 cnt += sizeof(struct sockaddr_in6);
1417                                 break;
1418 #endif
1419                         default:
1420                                 break;
1421                         }
1422                 }
1423         }
1424         return (cnt);
1425 }
1426
1427 static int
1428 sctp_count_max_addresses(struct sctp_inpcb *inp)
1429 {
1430         int cnt = 0;
1431
1432         SCTP_IPI_ADDR_RLOCK();
1433         /* count addresses for the endpoint's default VRF */
1434         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1435         SCTP_IPI_ADDR_RUNLOCK();
1436         return (cnt);
1437 }
1438
1439 static int
1440 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1441     size_t optsize, void *p, int delay)
1442 {
1443         int error = 0;
1444         int creat_lock_on = 0;
1445         struct sctp_tcb *stcb = NULL;
1446         struct sockaddr *sa;
1447         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1448         uint32_t vrf_id;
1449         int bad_addresses = 0;
1450         sctp_assoc_t *a_id;
1451
1452         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1453
1454         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1455             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1456                 /* We are already connected AND the TCP model */
1457                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1458                 return (EADDRINUSE);
1459         }
1460         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1461             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1462                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1463                 return (EINVAL);
1464         }
1465         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1466                 SCTP_INP_RLOCK(inp);
1467                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1468                 SCTP_INP_RUNLOCK(inp);
1469         }
1470         if (stcb) {
1471                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1472                 return (EALREADY);
1473         }
1474         SCTP_INP_INCR_REF(inp);
1475         SCTP_ASOC_CREATE_LOCK(inp);
1476         creat_lock_on = 1;
1477         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1478             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1479                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1480                 error = EFAULT;
1481                 goto out_now;
1482         }
1483         totaddrp = (int *)optval;
1484         totaddr = *totaddrp;
1485         sa = (struct sockaddr *)(totaddrp + 1);
1486         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1487         if ((stcb != NULL) || bad_addresses) {
1488                 /* Already have or am bring up an association */
1489                 SCTP_ASOC_CREATE_UNLOCK(inp);
1490                 creat_lock_on = 0;
1491                 if (stcb)
1492                         SCTP_TCB_UNLOCK(stcb);
1493                 if (bad_addresses == 0) {
1494                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1495                         error = EALREADY;
1496                 }
1497                 goto out_now;
1498         }
1499 #ifdef INET6
1500         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1501             (num_v6 > 0)) {
1502                 error = EINVAL;
1503                 goto out_now;
1504         }
1505         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1506             (num_v4 > 0)) {
1507                 struct in6pcb *inp6;
1508
1509                 inp6 = (struct in6pcb *)inp;
1510                 if (SCTP_IPV6_V6ONLY(inp6)) {
1511                         /*
1512                          * if IPV6_V6ONLY flag, ignore connections destined
1513                          * to a v4 addr or v4-mapped addr
1514                          */
1515                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1516                         error = EINVAL;
1517                         goto out_now;
1518                 }
1519         }
1520 #endif                          /* INET6 */
1521         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1522             SCTP_PCB_FLAGS_UNBOUND) {
1523                 /* Bind a ephemeral port */
1524                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1525                 if (error) {
1526                         goto out_now;
1527                 }
1528         }
1529         /* FIX ME: do we want to pass in a vrf on the connect call? */
1530         vrf_id = inp->def_vrf_id;
1531
1532
1533         /* We are GOOD to go */
1534         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1535             (struct thread *)p
1536             );
1537         if (stcb == NULL) {
1538                 /* Gak! no memory */
1539                 goto out_now;
1540         }
1541         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1542                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1543                 /* Set the connected flag so we can queue data */
1544                 soisconnecting(so);
1545         }
1546         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1547         /* move to second address */
1548         switch (sa->sa_family) {
1549 #ifdef INET
1550         case AF_INET:
1551                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1552                 break;
1553 #endif
1554 #ifdef INET6
1555         case AF_INET6:
1556                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1557                 break;
1558 #endif
1559         default:
1560                 break;
1561         }
1562
1563         error = 0;
1564         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1565         /* Fill in the return id */
1566         if (error) {
1567                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1568                 goto out_now;
1569         }
1570         a_id = (sctp_assoc_t *) optval;
1571         *a_id = sctp_get_associd(stcb);
1572
1573         /* initialize authentication parameters for the assoc */
1574         sctp_initialize_auth_params(inp, stcb);
1575
1576         if (delay) {
1577                 /* doing delayed connection */
1578                 stcb->asoc.delayed_connection = 1;
1579                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1580         } else {
1581                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1582                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1583         }
1584         SCTP_TCB_UNLOCK(stcb);
1585         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1586                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1587                 /* Set the connected flag so we can queue data */
1588                 soisconnecting(so);
1589         }
1590 out_now:
1591         if (creat_lock_on) {
1592                 SCTP_ASOC_CREATE_UNLOCK(inp);
1593         }
1594         SCTP_INP_DECR_REF(inp);
1595         return (error);
1596 }
1597
1598 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1599         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1600             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1601                 SCTP_INP_RLOCK(inp); \
1602                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1603                 if (stcb) { \
1604                         SCTP_TCB_LOCK(stcb); \
1605                 } \
1606                 SCTP_INP_RUNLOCK(inp); \
1607         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1608                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1609                 if (stcb == NULL) { \
1610                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1611                         error = ENOENT; \
1612                         break; \
1613                 } \
1614         } else { \
1615                 stcb = NULL; \
1616         } \
1617   }
1618
1619
1620 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1621         if (size < sizeof(type)) { \
1622                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1623                 error = EINVAL; \
1624                 break; \
1625         } else { \
1626                 destp = (type *)srcp; \
1627         } \
1628       }
1629
1630 static int
1631 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1632     void *p)
1633 {
1634         struct sctp_inpcb *inp = NULL;
1635         int error, val = 0;
1636         struct sctp_tcb *stcb = NULL;
1637
1638         if (optval == NULL) {
1639                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1640                 return (EINVAL);
1641         }
1642         inp = (struct sctp_inpcb *)so->so_pcb;
1643         if (inp == NULL) {
1644                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1645                 return EINVAL;
1646         }
1647         error = 0;
1648
1649         switch (optname) {
1650         case SCTP_NODELAY:
1651         case SCTP_AUTOCLOSE:
1652         case SCTP_EXPLICIT_EOR:
1653         case SCTP_AUTO_ASCONF:
1654         case SCTP_DISABLE_FRAGMENTS:
1655         case SCTP_I_WANT_MAPPED_V4_ADDR:
1656         case SCTP_USE_EXT_RCVINFO:
1657                 SCTP_INP_RLOCK(inp);
1658                 switch (optname) {
1659                 case SCTP_DISABLE_FRAGMENTS:
1660                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1661                         break;
1662                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1663                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1664                         break;
1665                 case SCTP_AUTO_ASCONF:
1666                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1667                                 /* only valid for bound all sockets */
1668                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1669                         } else {
1670                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1671                                 error = EINVAL;
1672                                 goto flags_out;
1673                         }
1674                         break;
1675                 case SCTP_EXPLICIT_EOR:
1676                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1677                         break;
1678                 case SCTP_NODELAY:
1679                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1680                         break;
1681                 case SCTP_USE_EXT_RCVINFO:
1682                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1683                         break;
1684                 case SCTP_AUTOCLOSE:
1685                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1686                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1687                         else
1688                                 val = 0;
1689                         break;
1690
1691                 default:
1692                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1693                         error = ENOPROTOOPT;
1694                 }               /* end switch (sopt->sopt_name) */
1695                 if (*optsize < sizeof(val)) {
1696                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1697                         error = EINVAL;
1698                 }
1699 flags_out:
1700                 SCTP_INP_RUNLOCK(inp);
1701                 if (error == 0) {
1702                         /* return the option value */
1703                         *(int *)optval = val;
1704                         *optsize = sizeof(val);
1705                 }
1706                 break;
1707         case SCTP_GET_PACKET_LOG:
1708                 {
1709 #ifdef  SCTP_PACKET_LOGGING
1710                         uint8_t *target;
1711                         int ret;
1712
1713                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1714                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1715                         *optsize = ret;
1716 #else
1717                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1718                         error = EOPNOTSUPP;
1719 #endif
1720                         break;
1721                 }
1722         case SCTP_REUSE_PORT:
1723                 {
1724                         uint32_t *value;
1725
1726                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1727                                 /* Can't do this for a 1-m socket */
1728                                 error = EINVAL;
1729                                 break;
1730                         }
1731                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1732                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1733                         *optsize = sizeof(uint32_t);
1734                         break;
1735                 }
1736         case SCTP_PARTIAL_DELIVERY_POINT:
1737                 {
1738                         uint32_t *value;
1739
1740                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1741                         *value = inp->partial_delivery_point;
1742                         *optsize = sizeof(uint32_t);
1743                         break;
1744                 }
1745         case SCTP_FRAGMENT_INTERLEAVE:
1746                 {
1747                         uint32_t *value;
1748
1749                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1750                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1751                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1752                                         *value = SCTP_FRAG_LEVEL_2;
1753                                 } else {
1754                                         *value = SCTP_FRAG_LEVEL_1;
1755                                 }
1756                         } else {
1757                                 *value = SCTP_FRAG_LEVEL_0;
1758                         }
1759                         *optsize = sizeof(uint32_t);
1760                         break;
1761                 }
1762         case SCTP_CMT_ON_OFF:
1763                 {
1764                         struct sctp_assoc_value *av;
1765
1766                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1767                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1768                         if (stcb) {
1769                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1770                                 SCTP_TCB_UNLOCK(stcb);
1771                         } else {
1772                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1773                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1774                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1775                                         SCTP_INP_RLOCK(inp);
1776                                         av->assoc_value = inp->sctp_cmt_on_off;
1777                                         SCTP_INP_RUNLOCK(inp);
1778                                 } else {
1779                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1780                                         error = EINVAL;
1781                                 }
1782                         }
1783                         if (error == 0) {
1784                                 *optsize = sizeof(struct sctp_assoc_value);
1785                         }
1786                         break;
1787                 }
1788         case SCTP_PLUGGABLE_CC:
1789                 {
1790                         struct sctp_assoc_value *av;
1791
1792                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1793                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1794                         if (stcb) {
1795                                 av->assoc_value = stcb->asoc.congestion_control_module;
1796                                 SCTP_TCB_UNLOCK(stcb);
1797                         } else {
1798                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1799                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1800                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1801                                         SCTP_INP_RLOCK(inp);
1802                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1803                                         SCTP_INP_RUNLOCK(inp);
1804                                 } else {
1805                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1806                                         error = EINVAL;
1807                                 }
1808                         }
1809                         if (error == 0) {
1810                                 *optsize = sizeof(struct sctp_assoc_value);
1811                         }
1812                         break;
1813                 }
1814         case SCTP_CC_OPTION:
1815                 {
1816                         struct sctp_cc_option *cc_opt;
1817
1818                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1819                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1820                         if (stcb == NULL) {
1821                                 error = EINVAL;
1822                         } else {
1823                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1824                                         error = ENOTSUP;
1825                                 } else {
1826                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1827                                         *optsize = sizeof(struct sctp_cc_option);
1828                                 }
1829                                 SCTP_TCB_UNLOCK(stcb);
1830                         }
1831                         break;
1832                 }
1833         case SCTP_PLUGGABLE_SS:
1834                 {
1835                         struct sctp_assoc_value *av;
1836
1837                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1838                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1839                         if (stcb) {
1840                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1841                                 SCTP_TCB_UNLOCK(stcb);
1842                         } else {
1843                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1844                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1845                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1846                                         SCTP_INP_RLOCK(inp);
1847                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1848                                         SCTP_INP_RUNLOCK(inp);
1849                                 } else {
1850                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1851                                         error = EINVAL;
1852                                 }
1853                         }
1854                         if (error == 0) {
1855                                 *optsize = sizeof(struct sctp_assoc_value);
1856                         }
1857                         break;
1858                 }
1859         case SCTP_SS_VALUE:
1860                 {
1861                         struct sctp_stream_value *av;
1862
1863                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1864                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1865                         if (stcb) {
1866                                 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1867                                     &av->stream_value) < 0) {
1868                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1869                                         error = EINVAL;
1870                                 } else {
1871                                         *optsize = sizeof(struct sctp_stream_value);
1872                                 }
1873                                 SCTP_TCB_UNLOCK(stcb);
1874                         } else {
1875                                 /*
1876                                  * Can't get stream value without
1877                                  * association
1878                                  */
1879                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1880                                 error = EINVAL;
1881                         }
1882                         break;
1883                 }
1884         case SCTP_GET_ADDR_LEN:
1885                 {
1886                         struct sctp_assoc_value *av;
1887
1888                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1889                         error = EINVAL;
1890 #ifdef INET
1891                         if (av->assoc_value == AF_INET) {
1892                                 av->assoc_value = sizeof(struct sockaddr_in);
1893                                 error = 0;
1894                         }
1895 #endif
1896 #ifdef INET6
1897                         if (av->assoc_value == AF_INET6) {
1898                                 av->assoc_value = sizeof(struct sockaddr_in6);
1899                                 error = 0;
1900                         }
1901 #endif
1902                         if (error) {
1903                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1904                         } else {
1905                                 *optsize = sizeof(struct sctp_assoc_value);
1906                         }
1907                         break;
1908                 }
1909         case SCTP_GET_ASSOC_NUMBER:
1910                 {
1911                         uint32_t *value, cnt;
1912
1913                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1914                         cnt = 0;
1915                         SCTP_INP_RLOCK(inp);
1916                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1917                                 cnt++;
1918                         }
1919                         SCTP_INP_RUNLOCK(inp);
1920                         *value = cnt;
1921                         *optsize = sizeof(uint32_t);
1922                         break;
1923                 }
1924         case SCTP_GET_ASSOC_ID_LIST:
1925                 {
1926                         struct sctp_assoc_ids *ids;
1927                         unsigned int at, limit;
1928
1929                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1930                         at = 0;
1931                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1932                         SCTP_INP_RLOCK(inp);
1933                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1934                                 if (at < limit) {
1935                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1936                                 } else {
1937                                         error = EINVAL;
1938                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1939                                         break;
1940                                 }
1941                         }
1942                         SCTP_INP_RUNLOCK(inp);
1943                         if (error == 0) {
1944                                 ids->gaids_number_of_ids = at;
1945                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1946                         }
1947                         break;
1948                 }
1949         case SCTP_CONTEXT:
1950                 {
1951                         struct sctp_assoc_value *av;
1952
1953                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1954                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1955
1956                         if (stcb) {
1957                                 av->assoc_value = stcb->asoc.context;
1958                                 SCTP_TCB_UNLOCK(stcb);
1959                         } else {
1960                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1961                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1962                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1963                                         SCTP_INP_RLOCK(inp);
1964                                         av->assoc_value = inp->sctp_context;
1965                                         SCTP_INP_RUNLOCK(inp);
1966                                 } else {
1967                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1968                                         error = EINVAL;
1969                                 }
1970                         }
1971                         if (error == 0) {
1972                                 *optsize = sizeof(struct sctp_assoc_value);
1973                         }
1974                         break;
1975                 }
1976         case SCTP_VRF_ID:
1977                 {
1978                         uint32_t *default_vrfid;
1979
1980                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1981                         *default_vrfid = inp->def_vrf_id;
1982                         *optsize = sizeof(uint32_t);
1983                         break;
1984                 }
1985         case SCTP_GET_ASOC_VRF:
1986                 {
1987                         struct sctp_assoc_value *id;
1988
1989                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1990                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1991                         if (stcb == NULL) {
1992                                 error = EINVAL;
1993                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1994                         } else {
1995                                 id->assoc_value = stcb->asoc.vrf_id;
1996                                 *optsize = sizeof(struct sctp_assoc_value);
1997                         }
1998                         break;
1999                 }
2000         case SCTP_GET_VRF_IDS:
2001                 {
2002                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2003                         error = EOPNOTSUPP;
2004                         break;
2005                 }
2006         case SCTP_GET_NONCE_VALUES:
2007                 {
2008                         struct sctp_get_nonce_values *gnv;
2009
2010                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2011                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2012
2013                         if (stcb) {
2014                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2015                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2016                                 SCTP_TCB_UNLOCK(stcb);
2017                                 *optsize = sizeof(struct sctp_get_nonce_values);
2018                         } else {
2019                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2020                                 error = ENOTCONN;
2021                         }
2022                         break;
2023                 }
2024         case SCTP_DELAYED_SACK:
2025                 {
2026                         struct sctp_sack_info *sack;
2027
2028                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2029                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2030                         if (stcb) {
2031                                 sack->sack_delay = stcb->asoc.delayed_ack;
2032                                 sack->sack_freq = stcb->asoc.sack_freq;
2033                                 SCTP_TCB_UNLOCK(stcb);
2034                         } else {
2035                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2036                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2037                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2038                                         SCTP_INP_RLOCK(inp);
2039                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2040                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2041                                         SCTP_INP_RUNLOCK(inp);
2042                                 } else {
2043                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2044                                         error = EINVAL;
2045                                 }
2046                         }
2047                         if (error == 0) {
2048                                 *optsize = sizeof(struct sctp_sack_info);
2049                         }
2050                         break;
2051                 }
2052         case SCTP_GET_SNDBUF_USE:
2053                 {
2054                         struct sctp_sockstat *ss;
2055
2056                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2057                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2058
2059                         if (stcb) {
2060                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2061                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2062                                     stcb->asoc.size_on_all_streams);
2063                                 SCTP_TCB_UNLOCK(stcb);
2064                                 *optsize = sizeof(struct sctp_sockstat);
2065                         } else {
2066                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2067                                 error = ENOTCONN;
2068                         }
2069                         break;
2070                 }
2071         case SCTP_MAX_BURST:
2072                 {
2073                         struct sctp_assoc_value *av;
2074
2075                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2076                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2077
2078                         if (stcb) {
2079                                 av->assoc_value = stcb->asoc.max_burst;
2080                                 SCTP_TCB_UNLOCK(stcb);
2081                         } else {
2082                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2083                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2084                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2085                                         SCTP_INP_RLOCK(inp);
2086                                         av->assoc_value = inp->sctp_ep.max_burst;
2087                                         SCTP_INP_RUNLOCK(inp);
2088                                 } else {
2089                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2090                                         error = EINVAL;
2091                                 }
2092                         }
2093                         if (error == 0) {
2094                                 *optsize = sizeof(struct sctp_assoc_value);
2095                         }
2096                         break;
2097                 }
2098         case SCTP_MAXSEG:
2099                 {
2100                         struct sctp_assoc_value *av;
2101                         int ovh;
2102
2103                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2104                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2105
2106                         if (stcb) {
2107                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2108                                 SCTP_TCB_UNLOCK(stcb);
2109                         } else {
2110                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2111                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2112                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2113                                         SCTP_INP_RLOCK(inp);
2114                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2115                                                 ovh = SCTP_MED_OVERHEAD;
2116                                         } else {
2117                                                 ovh = SCTP_MED_V4_OVERHEAD;
2118                                         }
2119                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2120                                                 av->assoc_value = 0;
2121                                         else
2122                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2123                                         SCTP_INP_RUNLOCK(inp);
2124                                 } else {
2125                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2126                                         error = EINVAL;
2127                                 }
2128                         }
2129                         if (error == 0) {
2130                                 *optsize = sizeof(struct sctp_assoc_value);
2131                         }
2132                         break;
2133                 }
2134         case SCTP_GET_STAT_LOG:
2135                 error = sctp_fill_stat_log(optval, optsize);
2136                 break;
2137         case SCTP_EVENTS:
2138                 {
2139                         struct sctp_event_subscribe *events;
2140
2141                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2142                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2143                         SCTP_INP_RLOCK(inp);
2144                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2145                                 events->sctp_data_io_event = 1;
2146
2147                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2148                                 events->sctp_association_event = 1;
2149
2150                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2151                                 events->sctp_address_event = 1;
2152
2153                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2154                                 events->sctp_send_failure_event = 1;
2155
2156                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2157                                 events->sctp_peer_error_event = 1;
2158
2159                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2160                                 events->sctp_shutdown_event = 1;
2161
2162                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2163                                 events->sctp_partial_delivery_event = 1;
2164
2165                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2166                                 events->sctp_adaptation_layer_event = 1;
2167
2168                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2169                                 events->sctp_authentication_event = 1;
2170
2171                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2172                                 events->sctp_sender_dry_event = 1;
2173
2174                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2175                                 events->sctp_stream_reset_event = 1;
2176                         SCTP_INP_RUNLOCK(inp);
2177                         *optsize = sizeof(struct sctp_event_subscribe);
2178                         break;
2179                 }
2180         case SCTP_ADAPTATION_LAYER:
2181                 {
2182                         uint32_t *value;
2183
2184                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2185
2186                         SCTP_INP_RLOCK(inp);
2187                         *value = inp->sctp_ep.adaptation_layer_indicator;
2188                         SCTP_INP_RUNLOCK(inp);
2189                         *optsize = sizeof(uint32_t);
2190                         break;
2191                 }
2192         case SCTP_SET_INITIAL_DBG_SEQ:
2193                 {
2194                         uint32_t *value;
2195
2196                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2197                         SCTP_INP_RLOCK(inp);
2198                         *value = inp->sctp_ep.initial_sequence_debug;
2199                         SCTP_INP_RUNLOCK(inp);
2200                         *optsize = sizeof(uint32_t);
2201                         break;
2202                 }
2203         case SCTP_GET_LOCAL_ADDR_SIZE:
2204                 {
2205                         uint32_t *value;
2206
2207                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2208                         SCTP_INP_RLOCK(inp);
2209                         *value = sctp_count_max_addresses(inp);
2210                         SCTP_INP_RUNLOCK(inp);
2211                         *optsize = sizeof(uint32_t);
2212                         break;
2213                 }
2214         case SCTP_GET_REMOTE_ADDR_SIZE:
2215                 {
2216                         uint32_t *value;
2217                         size_t size;
2218                         struct sctp_nets *net;
2219
2220                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2221                         /* FIXME MT: change to sctp_assoc_value? */
2222                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2223
2224                         if (stcb) {
2225                                 size = 0;
2226                                 /* Count the sizes */
2227                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2228                                         switch (net->ro._l_addr.sa.sa_family) {
2229 #ifdef INET
2230                                         case AF_INET:
2231 #ifdef INET6
2232                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2233                                                         size += sizeof(struct sockaddr_in6);
2234                                                 } else {
2235                                                         size += sizeof(struct sockaddr_in);
2236                                                 }
2237 #else
2238                                                 size += sizeof(struct sockaddr_in);
2239 #endif
2240                                                 break;
2241 #endif
2242 #ifdef INET6
2243                                         case AF_INET6:
2244                                                 size += sizeof(struct sockaddr_in6);
2245                                                 break;
2246 #endif
2247                                         default:
2248                                                 break;
2249                                         }
2250                                 }
2251                                 SCTP_TCB_UNLOCK(stcb);
2252                                 *value = (uint32_t) size;
2253                                 *optsize = sizeof(uint32_t);
2254                         } else {
2255                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2256                                 error = ENOTCONN;
2257                         }
2258                         break;
2259                 }
2260         case SCTP_GET_PEER_ADDRESSES:
2261                 /*
2262                  * Get the address information, an array is passed in to
2263                  * fill up we pack it.
2264                  */
2265                 {
2266                         size_t cpsz, left;
2267                         struct sockaddr_storage *sas;
2268                         struct sctp_nets *net;
2269                         struct sctp_getaddresses *saddr;
2270
2271                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2272                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2273
2274                         if (stcb) {
2275                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2276                                 *optsize = sizeof(struct sctp_getaddresses);
2277                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2278
2279                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2280                                         switch (net->ro._l_addr.sa.sa_family) {
2281 #ifdef INET
2282                                         case AF_INET:
2283 #ifdef INET6
2284                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2285                                                         cpsz = sizeof(struct sockaddr_in6);
2286                                                 } else {
2287                                                         cpsz = sizeof(struct sockaddr_in);
2288                                                 }
2289 #else
2290                                                 cpsz = sizeof(struct sockaddr_in);
2291 #endif
2292                                                 break;
2293 #endif
2294 #ifdef INET6
2295                                         case AF_INET6:
2296                                                 cpsz = sizeof(struct sockaddr_in6);
2297                                                 break;
2298 #endif
2299                                         default:
2300                                                 cpsz = 0;
2301                                                 break;
2302                                         }
2303                                         if (cpsz == 0) {
2304                                                 break;
2305                                         }
2306                                         if (left < cpsz) {
2307                                                 /* not enough room. */
2308                                                 break;
2309                                         }
2310 #if defined(INET) && defined(INET6)
2311                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2312                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2313                                                 /* Must map the address */
2314                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2315                                                     (struct sockaddr_in6 *)sas);
2316                                         } else {
2317                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2318                                         }
2319 #else
2320                                         memcpy(sas, &net->ro._l_addr, cpsz);
2321 #endif
2322                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2323
2324                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2325                                         left -= cpsz;
2326                                         *optsize += cpsz;
2327                                 }
2328                                 SCTP_TCB_UNLOCK(stcb);
2329                         } else {
2330                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2331                                 error = ENOENT;
2332                         }
2333                         break;
2334                 }
2335         case SCTP_GET_LOCAL_ADDRESSES:
2336                 {
2337                         size_t limit, actual;
2338                         struct sockaddr_storage *sas;
2339                         struct sctp_getaddresses *saddr;
2340
2341                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2342                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2343
2344                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2345                         limit = *optsize - sizeof(sctp_assoc_t);
2346                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2347                         if (stcb) {
2348                                 SCTP_TCB_UNLOCK(stcb);
2349                         }
2350                         *optsize = sizeof(struct sockaddr_storage) + actual;
2351                         break;
2352                 }
2353         case SCTP_PEER_ADDR_PARAMS:
2354                 {
2355                         struct sctp_paddrparams *paddrp;
2356                         struct sctp_nets *net;
2357                         struct sockaddr *addr;
2358
2359 #if defined(INET) && defined(INET6)
2360                         struct sockaddr_in sin_store;
2361
2362 #endif
2363
2364                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2365                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2366
2367 #if defined(INET) && defined(INET6)
2368                         if (paddrp->spp_address.ss_family == AF_INET6) {
2369                                 struct sockaddr_in6 *sin6;
2370
2371                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2372                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2373                                         in6_sin6_2_sin(&sin_store, sin6);
2374                                         addr = (struct sockaddr *)&sin_store;
2375                                 } else {
2376                                         addr = (struct sockaddr *)&paddrp->spp_address;
2377                                 }
2378                         } else {
2379                                 addr = (struct sockaddr *)&paddrp->spp_address;
2380                         }
2381 #else
2382                         addr = (struct sockaddr *)&paddrp->spp_address;
2383 #endif
2384                         if (stcb != NULL) {
2385                                 net = sctp_findnet(stcb, addr);
2386                         } else {
2387                                 /*
2388                                  * We increment here since
2389                                  * sctp_findassociation_ep_addr() wil do a
2390                                  * decrement if it finds the stcb as long as
2391                                  * the locked tcb (last argument) is NOT a
2392                                  * TCB.. aka NULL.
2393                                  */
2394                                 net = NULL;
2395                                 SCTP_INP_INCR_REF(inp);
2396                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2397                                 if (stcb == NULL) {
2398                                         SCTP_INP_DECR_REF(inp);
2399                                 }
2400                         }
2401                         if ((stcb != NULL) && (net == NULL)) {
2402 #ifdef INET
2403                                 if (addr->sa_family == AF_INET) {
2404                                         struct sockaddr_in *sin;
2405
2406                                         sin = (struct sockaddr_in *)addr;
2407                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2408                                                 error = EINVAL;
2409                                                 SCTP_TCB_UNLOCK(stcb);
2410                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2411                                                 break;
2412                                         }
2413                                 } else
2414 #endif
2415 #ifdef INET6
2416                                 if (addr->sa_family == AF_INET6) {
2417                                         struct sockaddr_in6 *sin6;
2418
2419                                         sin6 = (struct sockaddr_in6 *)addr;
2420                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2421                                                 error = EINVAL;
2422                                                 SCTP_TCB_UNLOCK(stcb);
2423                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2424                                                 break;
2425                                         }
2426                                 } else
2427 #endif
2428                                 {
2429                                         error = EAFNOSUPPORT;
2430                                         SCTP_TCB_UNLOCK(stcb);
2431                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2432                                         break;
2433                                 }
2434                         }
2435                         if (stcb != NULL) {
2436                                 /* Applies to the specific association */
2437                                 paddrp->spp_flags = 0;
2438                                 if (net != NULL) {
2439                                         int ovh;
2440
2441                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2442                                                 ovh = SCTP_MED_OVERHEAD;
2443                                         } else {
2444                                                 ovh = SCTP_MED_V4_OVERHEAD;
2445                                         }
2446
2447                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2448                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2449                                         paddrp->spp_pathmtu = net->mtu - ovh;
2450                                         /* get flags for HB */
2451                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2452                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2453                                         } else {
2454                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2455                                         }
2456                                         /* get flags for PMTU */
2457                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2458                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2459                                         } else {
2460                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2461                                         }
2462                                         if (net->dscp & 0x01) {
2463                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2464                                                 paddrp->spp_flags |= SPP_DSCP;
2465                                         }
2466 #ifdef INET6
2467                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2468                                             (net->flowlabel & 0x80000000)) {
2469                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2470                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2471                                         }
2472 #endif
2473                                 } else {
2474                                         /*
2475                                          * No destination so return default
2476                                          * value
2477                                          */
2478                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2479                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2480                                         if (stcb->asoc.default_dscp & 0x01) {
2481                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2482                                                 paddrp->spp_flags |= SPP_DSCP;
2483                                         }
2484 #ifdef INET6
2485                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2486                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2487                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2488                                         }
2489 #endif
2490                                         /* default settings should be these */
2491                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2492                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2493                                         } else {
2494                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2495                                         }
2496                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2497                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2498                                         } else {
2499                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2500                                         }
2501                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2502                                 }
2503                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2504                                 SCTP_TCB_UNLOCK(stcb);
2505                         } else {
2506                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2507                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2508                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2509                                         /* Use endpoint defaults */
2510                                         SCTP_INP_RLOCK(inp);
2511                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2512                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2513                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2514                                         /* get inp's default */
2515                                         if (inp->sctp_ep.default_dscp & 0x01) {
2516                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2517                                                 paddrp->spp_flags |= SPP_DSCP;
2518                                         }
2519 #ifdef INET6
2520                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2521                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2522                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2523                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2524                                         }
2525 #endif
2526                                         /* can't return this */
2527                                         paddrp->spp_pathmtu = 0;
2528
2529                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2530                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2531                                         } else {
2532                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2533                                         }
2534                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2535                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2536                                         } else {
2537                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2538                                         }
2539                                         SCTP_INP_RUNLOCK(inp);
2540                                 } else {
2541                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2542                                         error = EINVAL;
2543                                 }
2544                         }
2545                         if (error == 0) {
2546                                 *optsize = sizeof(struct sctp_paddrparams);
2547                         }
2548                         break;
2549                 }
2550         case SCTP_GET_PEER_ADDR_INFO:
2551                 {
2552                         struct sctp_paddrinfo *paddri;
2553                         struct sctp_nets *net;
2554                         struct sockaddr *addr;
2555
2556 #if defined(INET) && defined(INET6)
2557                         struct sockaddr_in sin_store;
2558
2559 #endif
2560
2561                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2562                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2563
2564 #if defined(INET) && defined(INET6)
2565                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2566                                 struct sockaddr_in6 *sin6;
2567
2568                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2569                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2570                                         in6_sin6_2_sin(&sin_store, sin6);
2571                                         addr = (struct sockaddr *)&sin_store;
2572                                 } else {
2573                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2574                                 }
2575                         } else {
2576                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2577                         }
2578 #else
2579                         addr = (struct sockaddr *)&paddri->spinfo_address;
2580 #endif
2581                         if (stcb != NULL) {
2582                                 net = sctp_findnet(stcb, addr);
2583                         } else {
2584                                 /*
2585                                  * We increment here since
2586                                  * sctp_findassociation_ep_addr() wil do a
2587                                  * decrement if it finds the stcb as long as
2588                                  * the locked tcb (last argument) is NOT a
2589                                  * TCB.. aka NULL.
2590                                  */
2591                                 net = NULL;
2592                                 SCTP_INP_INCR_REF(inp);
2593                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2594                                 if (stcb == NULL) {
2595                                         SCTP_INP_DECR_REF(inp);
2596                                 }
2597                         }
2598
2599                         if ((stcb != NULL) && (net != NULL)) {
2600                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2601                                         /* It's unconfirmed */
2602                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2603                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2604                                         /* It's active */
2605                                         paddri->spinfo_state = SCTP_ACTIVE;
2606                                 } else {
2607                                         /* It's inactive */
2608                                         paddri->spinfo_state = SCTP_INACTIVE;
2609                                 }
2610                                 paddri->spinfo_cwnd = net->cwnd;
2611                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2612                                 paddri->spinfo_rto = net->RTO;
2613                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2614                                 paddri->spinfo_mtu = net->mtu;
2615                                 SCTP_TCB_UNLOCK(stcb);
2616                                 *optsize = sizeof(struct sctp_paddrinfo);
2617                         } else {
2618                                 if (stcb != NULL) {
2619                                         SCTP_TCB_UNLOCK(stcb);
2620                                 }
2621                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2622                                 error = ENOENT;
2623                         }
2624                         break;
2625                 }
2626         case SCTP_PCB_STATUS:
2627                 {
2628                         struct sctp_pcbinfo *spcb;
2629
2630                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2631                         sctp_fill_pcbinfo(spcb);
2632                         *optsize = sizeof(struct sctp_pcbinfo);
2633                         break;
2634                 }
2635         case SCTP_STATUS:
2636                 {
2637                         struct sctp_nets *net;
2638                         struct sctp_status *sstat;
2639
2640                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2641                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2642
2643                         if (stcb == NULL) {
2644                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2645                                 error = EINVAL;
2646                                 break;
2647                         }
2648                         /*
2649                          * I think passing the state is fine since
2650                          * sctp_constants.h will be available to the user
2651                          * land.
2652                          */
2653                         sstat->sstat_state = stcb->asoc.state;
2654                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2655                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2656                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2657                         /*
2658                          * We can't include chunks that have been passed to
2659                          * the socket layer. Only things in queue.
2660                          */
2661                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2662                             stcb->asoc.cnt_on_all_streams);
2663
2664
2665                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2666                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2667                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2668                         memcpy(&sstat->sstat_primary.spinfo_address,
2669                             &stcb->asoc.primary_destination->ro._l_addr,
2670                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2671                         net = stcb->asoc.primary_destination;
2672                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2673                         /*
2674                          * Again the user can get info from sctp_constants.h
2675                          * for what the state of the network is.
2676                          */
2677                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2678                                 /* It's unconfirmed */
2679                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2680                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2681                                 /* It's active */
2682                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2683                         } else {
2684                                 /* It's inactive */
2685                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2686                         }
2687                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2688                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2689                         sstat->sstat_primary.spinfo_rto = net->RTO;
2690                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2691                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2692                         SCTP_TCB_UNLOCK(stcb);
2693                         *optsize = sizeof(struct sctp_status);
2694                         break;
2695                 }
2696         case SCTP_RTOINFO:
2697                 {
2698                         struct sctp_rtoinfo *srto;
2699
2700                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2701                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2702
2703                         if (stcb) {
2704                                 srto->srto_initial = stcb->asoc.initial_rto;
2705                                 srto->srto_max = stcb->asoc.maxrto;
2706                                 srto->srto_min = stcb->asoc.minrto;
2707                                 SCTP_TCB_UNLOCK(stcb);
2708                         } else {
2709                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2710                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2711                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2712                                         SCTP_INP_RLOCK(inp);
2713                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2714                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2715                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2716                                         SCTP_INP_RUNLOCK(inp);
2717                                 } else {
2718                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2719                                         error = EINVAL;
2720                                 }
2721                         }
2722                         if (error == 0) {
2723                                 *optsize = sizeof(struct sctp_rtoinfo);
2724                         }
2725                         break;
2726                 }
2727         case SCTP_TIMEOUTS:
2728                 {
2729                         struct sctp_timeouts *stimo;
2730
2731                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2732                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2733
2734                         if (stcb) {
2735                                 stimo->stimo_init = stcb->asoc.timoinit;
2736                                 stimo->stimo_data = stcb->asoc.timodata;
2737                                 stimo->stimo_sack = stcb->asoc.timosack;
2738                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2739                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2740                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2741                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2742                                 SCTP_TCB_UNLOCK(stcb);
2743                                 *optsize = sizeof(struct sctp_timeouts);
2744                         } else {
2745                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2746                                 error = EINVAL;
2747                         }
2748                         break;
2749                 }
2750         case SCTP_ASSOCINFO:
2751                 {
2752                         struct sctp_assocparams *sasoc;
2753
2754                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2755                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2756
2757                         if (stcb) {
2758                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2759                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2760                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2761                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2762                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2763                                 SCTP_TCB_UNLOCK(stcb);
2764                         } else {
2765                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2766                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2767                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2768                                         SCTP_INP_RLOCK(inp);
2769                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2770                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2771                                         sasoc->sasoc_number_peer_destinations = 0;
2772                                         sasoc->sasoc_peer_rwnd = 0;
2773                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2774                                         SCTP_INP_RUNLOCK(inp);
2775                                 } else {
2776                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2777                                         error = EINVAL;
2778                                 }
2779                         }
2780                         if (error == 0) {
2781                                 *optsize = sizeof(struct sctp_assocparams);
2782                         }
2783                         break;
2784                 }
2785         case SCTP_DEFAULT_SEND_PARAM:
2786                 {
2787                         struct sctp_sndrcvinfo *s_info;
2788
2789                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2790                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2791
2792                         if (stcb) {
2793                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2794                                 SCTP_TCB_UNLOCK(stcb);
2795                         } else {
2796                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2797                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2798                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2799                                         SCTP_INP_RLOCK(inp);
2800                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2801                                         SCTP_INP_RUNLOCK(inp);
2802                                 } else {
2803                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2804                                         error = EINVAL;
2805                                 }
2806                         }
2807                         if (error == 0) {
2808                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2809                         }
2810                         break;
2811                 }
2812         case SCTP_INITMSG:
2813                 {
2814                         struct sctp_initmsg *sinit;
2815
2816                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2817                         SCTP_INP_RLOCK(inp);
2818                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2819                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2820                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2821                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2822                         SCTP_INP_RUNLOCK(inp);
2823                         *optsize = sizeof(struct sctp_initmsg);
2824                         break;
2825                 }
2826         case SCTP_PRIMARY_ADDR:
2827                 /* we allow a "get" operation on this */
2828                 {
2829                         struct sctp_setprim *ssp;
2830
2831                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2832                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2833
2834                         if (stcb) {
2835                                 union sctp_sockstore *addr;
2836
2837                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2838                                 switch (addr->sa.sa_family) {
2839 #ifdef INET
2840                                 case AF_INET:
2841 #ifdef INET6
2842                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2843                                                 in6_sin_2_v4mapsin6(&addr->sin,
2844                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2845                                         } else {
2846                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2847                                         }
2848 #else
2849                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2850 #endif
2851                                         break;
2852 #endif
2853 #ifdef INET6
2854                                 case AF_INET6:
2855                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2856                                         break;
2857 #endif
2858                                 default:
2859                                         break;
2860                                 }
2861                                 SCTP_TCB_UNLOCK(stcb);
2862                                 *optsize = sizeof(struct sctp_setprim);
2863                         } else {
2864                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2865                                 error = EINVAL;
2866                         }
2867                         break;
2868                 }
2869         case SCTP_HMAC_IDENT:
2870                 {
2871                         struct sctp_hmacalgo *shmac;
2872                         sctp_hmaclist_t *hmaclist;
2873                         uint32_t size;
2874                         int i;
2875
2876                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2877
2878                         SCTP_INP_RLOCK(inp);
2879                         hmaclist = inp->sctp_ep.local_hmacs;
2880                         if (hmaclist == NULL) {
2881                                 /* no HMACs to return */
2882                                 *optsize = sizeof(*shmac);
2883                                 SCTP_INP_RUNLOCK(inp);
2884                                 break;
2885                         }
2886                         /* is there room for all of the hmac ids? */
2887                         size = sizeof(*shmac) + (hmaclist->num_algo *
2888                             sizeof(shmac->shmac_idents[0]));
2889                         if ((size_t)(*optsize) < size) {
2890                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2891                                 error = EINVAL;
2892                                 SCTP_INP_RUNLOCK(inp);
2893                                 break;
2894                         }
2895                         /* copy in the list */
2896                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2897                         for (i = 0; i < hmaclist->num_algo; i++) {
2898                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2899                         }
2900                         SCTP_INP_RUNLOCK(inp);
2901                         *optsize = size;
2902                         break;
2903                 }
2904         case SCTP_AUTH_ACTIVE_KEY:
2905                 {
2906                         struct sctp_authkeyid *scact;
2907
2908                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2909                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2910
2911                         if (stcb) {
2912                                 /* get the active key on the assoc */
2913                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2914                                 SCTP_TCB_UNLOCK(stcb);
2915                         } else {
2916                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2917                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2918                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2919                                         /* get the endpoint active key */
2920                                         SCTP_INP_RLOCK(inp);
2921                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2922                                         SCTP_INP_RUNLOCK(inp);
2923                                 } else {
2924                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2925                                         error = EINVAL;
2926                                 }
2927                         }
2928                         if (error == 0) {
2929                                 *optsize = sizeof(struct sctp_authkeyid);
2930                         }
2931                         break;
2932                 }
2933         case SCTP_LOCAL_AUTH_CHUNKS:
2934                 {
2935                         struct sctp_authchunks *sac;
2936                         sctp_auth_chklist_t *chklist = NULL;
2937                         size_t size = 0;
2938
2939                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2940                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2941
2942                         if (stcb) {
2943                                 /* get off the assoc */
2944                                 chklist = stcb->asoc.local_auth_chunks;
2945                                 /* is there enough space? */
2946                                 size = sctp_auth_get_chklist_size(chklist);
2947                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2948                                         error = EINVAL;
2949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2950                                 } else {
2951                                         /* copy in the chunks */
2952                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2953                                         sac->gauth_number_of_chunks = (uint32_t) size;
2954                                         *optsize = sizeof(struct sctp_authchunks) + size;
2955                                 }
2956                                 SCTP_TCB_UNLOCK(stcb);
2957                         } else {
2958                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2959                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2960                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2961                                         /* get off the endpoint */
2962                                         SCTP_INP_RLOCK(inp);
2963                                         chklist = inp->sctp_ep.local_auth_chunks;
2964                                         /* is there enough space? */
2965                                         size = sctp_auth_get_chklist_size(chklist);
2966                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2967                                                 error = EINVAL;
2968                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2969                                         } else {
2970                                                 /* copy in the chunks */
2971                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2972                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2973                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2974                                         }
2975                                         SCTP_INP_RUNLOCK(inp);
2976                                 } else {
2977                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2978                                         error = EINVAL;
2979                                 }
2980                         }
2981                         break;
2982                 }
2983         case SCTP_PEER_AUTH_CHUNKS:
2984                 {
2985                         struct sctp_authchunks *sac;
2986                         sctp_auth_chklist_t *chklist = NULL;
2987                         size_t size = 0;
2988
2989                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2990                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2991
2992                         if (stcb) {
2993                                 /* get off the assoc */
2994                                 chklist = stcb->asoc.peer_auth_chunks;
2995                                 /* is there enough space? */
2996                                 size = sctp_auth_get_chklist_size(chklist);
2997                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2998                                         error = EINVAL;
2999                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3000                                 } else {
3001                                         /* copy in the chunks */
3002                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3003                                         sac->gauth_number_of_chunks = (uint32_t) size;
3004                                         *optsize = sizeof(struct sctp_authchunks) + size;
3005                                 }
3006                                 SCTP_TCB_UNLOCK(stcb);
3007                         } else {
3008                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3009                                 error = ENOENT;
3010                         }
3011                         break;
3012                 }
3013         case SCTP_EVENT:
3014                 {
3015                         struct sctp_event *event;
3016                         uint32_t event_type;
3017
3018                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3019                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3020
3021                         switch (event->se_type) {
3022                         case SCTP_ASSOC_CHANGE:
3023                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3024                                 break;
3025                         case SCTP_PEER_ADDR_CHANGE:
3026                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3027                                 break;
3028                         case SCTP_REMOTE_ERROR:
3029                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3030                                 break;
3031                         case SCTP_SEND_FAILED:
3032                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3033                                 break;
3034                         case SCTP_SHUTDOWN_EVENT:
3035                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3036                                 break;
3037                         case SCTP_ADAPTATION_INDICATION:
3038                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3039                                 break;
3040                         case SCTP_PARTIAL_DELIVERY_EVENT:
3041                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3042                                 break;
3043                         case SCTP_AUTHENTICATION_EVENT:
3044                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3045                                 break;
3046                         case SCTP_STREAM_RESET_EVENT:
3047                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3048                                 break;
3049                         case SCTP_SENDER_DRY_EVENT:
3050                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3051                                 break;
3052                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3053                                 event_type = 0;
3054                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3055                                 error = ENOTSUP;
3056                                 break;
3057                         case SCTP_ASSOC_RESET_EVENT:
3058                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3059                                 break;
3060                         case SCTP_STREAM_CHANGE_EVENT:
3061                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3062                                 break;
3063                         case SCTP_SEND_FAILED_EVENT:
3064                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3065                                 break;
3066                         default:
3067                                 event_type = 0;
3068                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3069                                 error = EINVAL;
3070                                 break;
3071                         }
3072                         if (event_type > 0) {
3073                                 if (stcb) {
3074                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3075                                         SCTP_TCB_UNLOCK(stcb);
3076                                 } else {
3077                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3078                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3079                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3080                                                 SCTP_INP_RLOCK(inp);
3081                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3082                                                 SCTP_INP_RUNLOCK(inp);
3083                                         } else {
3084                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3085                                                 error = EINVAL;
3086                                         }
3087                                 }
3088                         }
3089                         if (error == 0) {
3090                                 *optsize = sizeof(struct sctp_event);
3091                         }
3092                         break;
3093                 }
3094         case SCTP_RECVRCVINFO:
3095                 {
3096                         int onoff;
3097
3098                         if (*optsize < sizeof(int)) {
3099                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3100                                 error = EINVAL;
3101                         } else {
3102                                 SCTP_INP_RLOCK(inp);
3103                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3104                                 SCTP_INP_RUNLOCK(inp);
3105                         }
3106                         if (error == 0) {
3107                                 /* return the option value */
3108                                 *(int *)optval = onoff;
3109                                 *optsize = sizeof(int);
3110                         }
3111                         break;
3112                 }
3113         case SCTP_RECVNXTINFO:
3114                 {
3115                         int onoff;
3116
3117                         if (*optsize < sizeof(int)) {
3118                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3119                                 error = EINVAL;
3120                         } else {
3121                                 SCTP_INP_RLOCK(inp);
3122                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3123                                 SCTP_INP_RUNLOCK(inp);
3124                         }
3125                         if (error == 0) {
3126                                 /* return the option value */
3127                                 *(int *)optval = onoff;
3128                                 *optsize = sizeof(int);
3129                         }
3130                         break;
3131                 }
3132         case SCTP_DEFAULT_SNDINFO:
3133                 {
3134                         struct sctp_sndinfo *info;
3135
3136                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3137                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3138
3139                         if (stcb) {
3140                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3141                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3142                                 info->snd_flags &= 0xfff0;
3143                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3144                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3145                                 SCTP_TCB_UNLOCK(stcb);
3146                         } else {
3147                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3148                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3149                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3150                                         SCTP_INP_RLOCK(inp);
3151                                         info->snd_sid = inp->def_send.sinfo_stream;
3152                                         info->snd_flags = inp->def_send.sinfo_flags;
3153                                         info->snd_flags &= 0xfff0;
3154                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3155                                         info->snd_context = inp->def_send.sinfo_context;
3156                                         SCTP_INP_RUNLOCK(inp);
3157                                 } else {
3158                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3159                                         error = EINVAL;
3160                                 }
3161                         }
3162                         if (error == 0) {
3163                                 *optsize = sizeof(struct sctp_sndinfo);
3164                         }
3165                         break;
3166                 }
3167         case SCTP_DEFAULT_PRINFO:
3168                 {
3169                         struct sctp_default_prinfo *info;
3170
3171                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3172                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3173
3174                         if (stcb) {
3175                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3176                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3177                                 SCTP_TCB_UNLOCK(stcb);
3178                         } else {
3179                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3180                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3181                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3182                                         SCTP_INP_RLOCK(inp);
3183                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3184                                         info->pr_value = inp->def_send.sinfo_timetolive;
3185                                         SCTP_INP_RUNLOCK(inp);
3186                                 } else {
3187                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3188                                         error = EINVAL;
3189                                 }
3190                         }
3191                         if (error == 0) {
3192                                 *optsize = sizeof(struct sctp_default_prinfo);
3193                         }
3194                         break;
3195                 }
3196         case SCTP_PEER_ADDR_THLDS:
3197                 {
3198                         struct sctp_paddrthlds *thlds;
3199                         struct sctp_nets *net;
3200                         struct sockaddr *addr;
3201
3202 #if defined(INET) && defined(INET6)
3203                         struct sockaddr_in sin_store;
3204
3205 #endif
3206
3207                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3208                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3209
3210 #if defined(INET) && defined(INET6)
3211                         if (thlds->spt_address.ss_family == AF_INET6) {
3212                                 struct sockaddr_in6 *sin6;
3213
3214                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3215                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3216                                         in6_sin6_2_sin(&sin_store, sin6);
3217                                         addr = (struct sockaddr *)&sin_store;
3218                                 } else {
3219                                         addr = (struct sockaddr *)&thlds->spt_address;
3220                                 }
3221                         } else {
3222                                 addr = (struct sockaddr *)&thlds->spt_address;
3223                         }
3224 #else
3225                         addr = (struct sockaddr *)&thlds->spt_address;
3226 #endif
3227                         if (stcb != NULL) {
3228                                 net = sctp_findnet(stcb, addr);
3229                         } else {
3230                                 /*
3231                                  * We increment here since
3232                                  * sctp_findassociation_ep_addr() wil do a
3233                                  * decrement if it finds the stcb as long as
3234                                  * the locked tcb (last argument) is NOT a
3235                                  * TCB.. aka NULL.
3236                                  */
3237                                 net = NULL;
3238                                 SCTP_INP_INCR_REF(inp);
3239                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3240                                 if (stcb == NULL) {
3241                                         SCTP_INP_DECR_REF(inp);
3242                                 }
3243                         }
3244                         if ((stcb != NULL) && (net == NULL)) {
3245 #ifdef INET
3246                                 if (addr->sa_family == AF_INET) {
3247                                         struct sockaddr_in *sin;
3248
3249                                         sin = (struct sockaddr_in *)addr;
3250                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3251                                                 error = EINVAL;
3252                                                 SCTP_TCB_UNLOCK(stcb);
3253                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3254                                                 break;
3255                                         }
3256                                 } else
3257 #endif
3258 #ifdef INET6
3259                                 if (addr->sa_family == AF_INET6) {
3260                                         struct sockaddr_in6 *sin6;
3261
3262                                         sin6 = (struct sockaddr_in6 *)addr;
3263                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3264                                                 error = EINVAL;
3265                                                 SCTP_TCB_UNLOCK(stcb);
3266                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3267                                                 break;
3268                                         }
3269                                 } else
3270 #endif
3271                                 {
3272                                         error = EAFNOSUPPORT;
3273                                         SCTP_TCB_UNLOCK(stcb);
3274                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3275                                         break;
3276                                 }
3277                         }
3278                         if (stcb != NULL) {
3279                                 if (net != NULL) {
3280                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3281                                         thlds->spt_pathpfthld = net->pf_threshold;
3282                                 } else {
3283                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3284                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3285                                 }
3286                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3287                                 SCTP_TCB_UNLOCK(stcb);
3288                         } else {
3289                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3290                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3291                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3292                                         /* Use endpoint defaults */
3293                                         SCTP_INP_RLOCK(inp);
3294                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3295                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3296                                         SCTP_INP_RUNLOCK(inp);
3297                                 } else {
3298                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3299                                         error = EINVAL;
3300                                 }
3301                         }
3302                         if (error == 0) {
3303                                 *optsize = sizeof(struct sctp_paddrthlds);
3304                         }
3305                         break;
3306                 }
3307         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3308                 {
3309                         struct sctp_udpencaps *encaps;
3310                         struct sctp_nets *net;
3311                         struct sockaddr *addr;
3312
3313 #if defined(INET) && defined(INET6)
3314                         struct sockaddr_in sin_store;
3315
3316 #endif
3317
3318                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3319                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3320
3321 #if defined(INET) && defined(INET6)
3322                         if (encaps->sue_address.ss_family == AF_INET6) {
3323                                 struct sockaddr_in6 *sin6;
3324
3325                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3326                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3327                                         in6_sin6_2_sin(&sin_store, sin6);
3328                                         addr = (struct sockaddr *)&sin_store;
3329                                 } else {
3330                                         addr = (struct sockaddr *)&encaps->sue_address;
3331                                 }
3332                         } else {
3333                                 addr = (struct sockaddr *)&encaps->sue_address;
3334                         }
3335 #else
3336                         addr = (struct sockaddr *)&encaps->sue_address;
3337 #endif
3338                         if (stcb) {
3339                                 net = sctp_findnet(stcb, addr);
3340                         } else {
3341                                 /*
3342                                  * We increment here since
3343                                  * sctp_findassociation_ep_addr() wil do a
3344                                  * decrement if it finds the stcb as long as
3345                                  * the locked tcb (last argument) is NOT a
3346                                  * TCB.. aka NULL.
3347                                  */
3348                                 net = NULL;
3349                                 SCTP_INP_INCR_REF(inp);
3350                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3351                                 if (stcb == NULL) {
3352                                         SCTP_INP_DECR_REF(inp);
3353                                 }
3354                         }
3355                         if ((stcb != NULL) && (net == NULL)) {
3356 #ifdef INET
3357                                 if (addr->sa_family == AF_INET) {
3358                                         struct sockaddr_in *sin;
3359
3360                                         sin = (struct sockaddr_in *)addr;
3361                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3362                                                 error = EINVAL;
3363                                                 SCTP_TCB_UNLOCK(stcb);
3364                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3365                                                 break;
3366                                         }
3367                                 } else
3368 #endif
3369 #ifdef INET6
3370                                 if (addr->sa_family == AF_INET6) {
3371                                         struct sockaddr_in6 *sin6;
3372
3373                                         sin6 = (struct sockaddr_in6 *)addr;
3374                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3375                                                 error = EINVAL;
3376                                                 SCTP_TCB_UNLOCK(stcb);
3377                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3378                                                 break;
3379                                         }
3380                                 } else
3381 #endif
3382                                 {
3383                                         error = EAFNOSUPPORT;
3384                                         SCTP_TCB_UNLOCK(stcb);
3385                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3386                                         break;
3387                                 }
3388                         }
3389                         if (stcb != NULL) {
3390                                 if (net) {
3391                                         encaps->sue_port = net->port;
3392                                 } else {
3393                                         encaps->sue_port = stcb->asoc.port;
3394                                 }
3395                                 SCTP_TCB_UNLOCK(stcb);
3396                         } else {
3397                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3398                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3399                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3400                                         SCTP_INP_RLOCK(inp);
3401                                         encaps->sue_port = inp->sctp_ep.port;
3402                                         SCTP_INP_RUNLOCK(inp);
3403                                 } else {
3404                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3405                                         error = EINVAL;
3406                                 }
3407                         }
3408                         if (error == 0) {
3409                                 *optsize = sizeof(struct sctp_udpencaps);
3410                         }
3411                         break;
3412                 }
3413         case SCTP_ECN_SUPPORTED:
3414                 {
3415                         struct sctp_assoc_value *av;
3416
3417                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3418                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3419
3420                         if (stcb) {
3421                                 av->assoc_value = stcb->asoc.ecn_supported;
3422                                 SCTP_TCB_UNLOCK(stcb);
3423                         } else {
3424                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3425                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3426                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3427                                         SCTP_INP_RLOCK(inp);
3428                                         av->assoc_value = inp->ecn_supported;
3429                                         SCTP_INP_RUNLOCK(inp);
3430                                 } else {
3431                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3432                                         error = EINVAL;
3433                                 }
3434                         }
3435                         if (error == 0) {
3436                                 *optsize = sizeof(struct sctp_assoc_value);
3437                         }
3438                         break;
3439                 }
3440         case SCTP_PR_SUPPORTED:
3441                 {
3442                         struct sctp_assoc_value *av;
3443
3444                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3445                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3446
3447                         if (stcb) {
3448                                 av->assoc_value = stcb->asoc.prsctp_supported;
3449                                 SCTP_TCB_UNLOCK(stcb);
3450                         } else {
3451                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3452                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3453                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3454                                         SCTP_INP_RLOCK(inp);
3455                                         av->assoc_value = inp->prsctp_supported;
3456                                         SCTP_INP_RUNLOCK(inp);
3457                                 } else {
3458                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3459                                         error = EINVAL;
3460                                 }
3461                         }
3462                         if (error == 0) {
3463                                 *optsize = sizeof(struct sctp_assoc_value);
3464                         }
3465                         break;
3466                 }
3467         case SCTP_AUTH_SUPPORTED:
3468                 {
3469                         struct sctp_assoc_value *av;
3470
3471                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3472                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3473
3474                         if (stcb) {
3475                                 av->assoc_value = stcb->asoc.auth_supported;
3476                                 SCTP_TCB_UNLOCK(stcb);
3477                         } else {
3478                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3479                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3480                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3481                                         SCTP_INP_RLOCK(inp);
3482                                         av->assoc_value = inp->auth_supported;
3483                                         SCTP_INP_RUNLOCK(inp);
3484                                 } else {
3485                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3486                                         error = EINVAL;
3487                                 }
3488                         }
3489                         if (error == 0) {
3490                                 *optsize = sizeof(struct sctp_assoc_value);
3491                         }
3492                         break;
3493                 }
3494         case SCTP_ASCONF_SUPPORTED:
3495                 {
3496                         struct sctp_assoc_value *av;
3497
3498                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3499                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3500
3501                         if (stcb) {
3502                                 av->assoc_value = stcb->asoc.asconf_supported;
3503                                 SCTP_TCB_UNLOCK(stcb);
3504                         } else {
3505                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3506                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3507                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3508                                         SCTP_INP_RLOCK(inp);
3509                                         av->assoc_value = inp->asconf_supported;
3510                                         SCTP_INP_RUNLOCK(inp);
3511                                 } else {
3512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3513                                         error = EINVAL;
3514                                 }
3515                         }
3516                         if (error == 0) {
3517                                 *optsize = sizeof(struct sctp_assoc_value);
3518                         }
3519                         break;
3520                 }
3521         case SCTP_RECONFIG_SUPPORTED:
3522                 {
3523                         struct sctp_assoc_value *av;
3524
3525                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3526                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3527
3528                         if (stcb) {
3529                                 av->assoc_value = stcb->asoc.reconfig_supported;
3530                                 SCTP_TCB_UNLOCK(stcb);
3531                         } else {
3532                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3533                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3534                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3535                                         SCTP_INP_RLOCK(inp);
3536                                         av->assoc_value = inp->reconfig_supported;
3537                                         SCTP_INP_RUNLOCK(inp);
3538                                 } else {
3539                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3540                                         error = EINVAL;
3541                                 }
3542                         }
3543                         if (error == 0) {
3544                                 *optsize = sizeof(struct sctp_assoc_value);
3545                         }
3546                         break;
3547                 }
3548         case SCTP_NRSACK_SUPPORTED:
3549                 {
3550                         struct sctp_assoc_value *av;
3551
3552                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3553                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3554
3555                         if (stcb) {
3556                                 av->assoc_value = stcb->asoc.nrsack_supported;
3557                                 SCTP_TCB_UNLOCK(stcb);
3558                         } else {
3559                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3560                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3561                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3562                                         SCTP_INP_RLOCK(inp);
3563                                         av->assoc_value = inp->nrsack_supported;
3564                                         SCTP_INP_RUNLOCK(inp);
3565                                 } else {
3566                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3567                                         error = EINVAL;
3568                                 }
3569                         }
3570                         if (error == 0) {
3571                                 *optsize = sizeof(struct sctp_assoc_value);
3572                         }
3573                         break;
3574                 }
3575         case SCTP_PKTDROP_SUPPORTED:
3576                 {
3577                         struct sctp_assoc_value *av;
3578
3579                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3580                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3581
3582                         if (stcb) {
3583                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3584                                 SCTP_TCB_UNLOCK(stcb);
3585                         } else {
3586                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3587                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3588                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3589                                         SCTP_INP_RLOCK(inp);
3590                                         av->assoc_value = inp->pktdrop_supported;
3591                                         SCTP_INP_RUNLOCK(inp);
3592                                 } else {
3593                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3594                                         error = EINVAL;
3595                                 }
3596                         }
3597                         if (error == 0) {
3598                                 *optsize = sizeof(struct sctp_assoc_value);
3599                         }
3600                         break;
3601                 }
3602         case SCTP_ENABLE_STREAM_RESET:
3603                 {
3604                         struct sctp_assoc_value *av;
3605
3606                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3607                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3608
3609                         if (stcb) {
3610                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3611                                 SCTP_TCB_UNLOCK(stcb);
3612                         } else {
3613                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3614                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3615                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3616                                         SCTP_INP_RLOCK(inp);
3617                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3618                                         SCTP_INP_RUNLOCK(inp);
3619                                 } else {
3620                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3621                                         error = EINVAL;
3622                                 }
3623                         }
3624                         if (error == 0) {
3625                                 *optsize = sizeof(struct sctp_assoc_value);
3626                         }
3627                         break;
3628                 }
3629         case SCTP_PR_STREAM_STATUS:
3630                 {
3631                         struct sctp_prstatus *sprstat;
3632                         uint16_t sid;
3633                         uint16_t policy;
3634
3635                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3636                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3637
3638                         sid = sprstat->sprstat_sid;
3639                         policy = sprstat->sprstat_policy;
3640 #if defined(SCTP_DETAILED_STR_STATS)
3641                         if ((stcb != NULL) &&
3642                             (sid < stcb->asoc.streamoutcnt) &&
3643                             (policy != SCTP_PR_SCTP_NONE) &&
3644                             ((policy <= SCTP_PR_SCTP_MAX) ||
3645                             (policy == SCTP_PR_SCTP_ALL))) {
3646                                 if (policy == SCTP_PR_SCTP_ALL) {
3647                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3648                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3649                                 } else {
3650                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3651                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3652                                 }
3653 #else
3654                         if ((stcb != NULL) &&
3655                             (sid < stcb->asoc.streamoutcnt) &&
3656                             (policy == SCTP_PR_SCTP_ALL)) {
3657                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3658                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3659 #endif
3660                                 SCTP_TCB_UNLOCK(stcb);
3661                                 *optsize = sizeof(struct sctp_prstatus);
3662                         } else {
3663                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3664                                 error = EINVAL;
3665                         }
3666                         break;
3667                 }
3668         case SCTP_PR_ASSOC_STATUS:
3669                 {
3670                         struct sctp_prstatus *sprstat;
3671                         uint16_t policy;
3672
3673                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3674                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3675
3676                         policy = sprstat->sprstat_policy;
3677                         if ((stcb != NULL) &&
3678                             (policy != SCTP_PR_SCTP_NONE) &&
3679                             ((policy <= SCTP_PR_SCTP_MAX) ||
3680                             (policy == SCTP_PR_SCTP_ALL))) {
3681                                 if (policy == SCTP_PR_SCTP_ALL) {
3682                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3683                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3684                                 } else {
3685                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3686                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3687                                 }
3688                                 SCTP_TCB_UNLOCK(stcb);
3689                                 *optsize = sizeof(struct sctp_prstatus);
3690                         } else {
3691                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3692                                 error = EINVAL;
3693                         }
3694                         break;
3695                 }
3696         default:
3697                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3698                 error = ENOPROTOOPT;
3699                 break;
3700         }                       /* end switch (sopt->sopt_name) */
3701         if (error) {
3702                 *optsize = 0;
3703         }
3704         return (error);
3705 }
3706
3707 static int
3708 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3709     void *p)
3710 {
3711         int error, set_opt;
3712         uint32_t *mopt;
3713         struct sctp_tcb *stcb = NULL;
3714         struct sctp_inpcb *inp = NULL;
3715         uint32_t vrf_id;
3716
3717         if (optval == NULL) {
3718                 SCTP_PRINTF("optval is NULL\n");
3719                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3720                 return (EINVAL);
3721         }
3722         inp = (struct sctp_inpcb *)so->so_pcb;
3723         if (inp == NULL) {
3724                 SCTP_PRINTF("inp is NULL?\n");
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 = SEC_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_CMT_ON_OFF:
3860                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3861                         struct sctp_assoc_value *av;
3862
3863                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3864                         if (av->assoc_value > SCTP_CMT_MAX) {
3865                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3866                                 error = EINVAL;
3867                                 break;
3868                         }
3869                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3870                         if (stcb) {
3871                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3872                                 SCTP_TCB_UNLOCK(stcb);
3873                         } else {
3874                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3875                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3876                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3877                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3878                                         SCTP_INP_WLOCK(inp);
3879                                         inp->sctp_cmt_on_off = av->assoc_value;
3880                                         SCTP_INP_WUNLOCK(inp);
3881                                 }
3882                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3883                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3884                                         SCTP_INP_RLOCK(inp);
3885                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3886                                                 SCTP_TCB_LOCK(stcb);
3887                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3888                                                 SCTP_TCB_UNLOCK(stcb);
3889                                         }
3890                                         SCTP_INP_RUNLOCK(inp);
3891                                 }
3892                         }
3893                 } else {
3894                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3895                         error = ENOPROTOOPT;
3896                 }
3897                 break;
3898         case SCTP_PLUGGABLE_CC:
3899                 {
3900                         struct sctp_assoc_value *av;
3901                         struct sctp_nets *net;
3902
3903                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3904                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3905                             (av->assoc_value != SCTP_CC_HSTCP) &&
3906                             (av->assoc_value != SCTP_CC_HTCP) &&
3907                             (av->assoc_value != SCTP_CC_RTCC)) {
3908                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3909                                 error = EINVAL;
3910                                 break;
3911                         }
3912                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3913                         if (stcb) {
3914                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3915                                 stcb->asoc.congestion_control_module = av->assoc_value;
3916                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3917                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3918                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3919                                         }
3920                                 }
3921                                 SCTP_TCB_UNLOCK(stcb);
3922                         } else {
3923                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3924                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3925                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3926                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3927                                         SCTP_INP_WLOCK(inp);
3928                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3929                                         SCTP_INP_WUNLOCK(inp);
3930                                 }
3931                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3932                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3933                                         SCTP_INP_RLOCK(inp);
3934                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3935                                                 SCTP_TCB_LOCK(stcb);
3936                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3937                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3938                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3939                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3940                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3941                                                         }
3942                                                 }
3943                                                 SCTP_TCB_UNLOCK(stcb);
3944                                         }
3945                                         SCTP_INP_RUNLOCK(inp);
3946                                 }
3947                         }
3948                         break;
3949                 }
3950         case SCTP_CC_OPTION:
3951                 {
3952                         struct sctp_cc_option *cc_opt;
3953
3954                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3955                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3956                         if (stcb == NULL) {
3957                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3958                                         SCTP_INP_RLOCK(inp);
3959                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3960                                                 SCTP_TCB_LOCK(stcb);
3961                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3962                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3963                                                 }
3964                                                 SCTP_TCB_UNLOCK(stcb);
3965                                         }
3966                                         SCTP_INP_RUNLOCK(inp);
3967                                 } else {
3968                                         error = EINVAL;
3969                                 }
3970                         } else {
3971                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3972                                         error = ENOTSUP;
3973                                 } else {
3974                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3975                                             cc_opt);
3976                                 }
3977                                 SCTP_TCB_UNLOCK(stcb);
3978                         }
3979                         break;
3980                 }
3981         case SCTP_PLUGGABLE_SS:
3982                 {
3983                         struct sctp_assoc_value *av;
3984
3985                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3986                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3987                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3988                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3989                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3990                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3991                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3992                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3993                                 error = EINVAL;
3994                                 break;
3995                         }
3996                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3997                         if (stcb) {
3998                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3999                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4000                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4001                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4002                                 SCTP_TCB_UNLOCK(stcb);
4003                         } else {
4004                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4005                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4006                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4007                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4008                                         SCTP_INP_WLOCK(inp);
4009                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4010                                         SCTP_INP_WUNLOCK(inp);
4011                                 }
4012                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4013                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4014                                         SCTP_INP_RLOCK(inp);
4015                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4016                                                 SCTP_TCB_LOCK(stcb);
4017                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4018                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4019                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4020                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4021                                                 SCTP_TCB_UNLOCK(stcb);
4022                                         }
4023                                         SCTP_INP_RUNLOCK(inp);
4024                                 }
4025                         }
4026                         break;
4027                 }
4028         case SCTP_SS_VALUE:
4029                 {
4030                         struct sctp_stream_value *av;
4031
4032                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4033                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4034                         if (stcb) {
4035                                 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4036                                     av->stream_value) < 0) {
4037                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4038                                         error = EINVAL;
4039                                 }
4040                                 SCTP_TCB_UNLOCK(stcb);
4041                         } else {
4042                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4043                                         SCTP_INP_RLOCK(inp);
4044                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4045                                                 SCTP_TCB_LOCK(stcb);
4046                                                 stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4047                                                     &stcb->asoc,
4048                                                     &stcb->asoc.strmout[av->stream_id],
4049                                                     av->stream_value);
4050                                                 SCTP_TCB_UNLOCK(stcb);
4051                                         }
4052                                         SCTP_INP_RUNLOCK(inp);
4053
4054                                 } else {
4055                                         /*
4056                                          * Can't set stream value without
4057                                          * association
4058                                          */
4059                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4060                                         error = EINVAL;
4061                                 }
4062                         }
4063                         break;
4064                 }
4065         case SCTP_CLR_STAT_LOG:
4066                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4067                 error = EOPNOTSUPP;
4068                 break;
4069         case SCTP_CONTEXT:
4070                 {
4071                         struct sctp_assoc_value *av;
4072
4073                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4074                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4075
4076                         if (stcb) {
4077                                 stcb->asoc.context = av->assoc_value;
4078                                 SCTP_TCB_UNLOCK(stcb);
4079                         } else {
4080                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4081                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4082                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4083                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4084                                         SCTP_INP_WLOCK(inp);
4085                                         inp->sctp_context = av->assoc_value;
4086                                         SCTP_INP_WUNLOCK(inp);
4087                                 }
4088                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4089                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4090                                         SCTP_INP_RLOCK(inp);
4091                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4092                                                 SCTP_TCB_LOCK(stcb);
4093                                                 stcb->asoc.context = av->assoc_value;
4094                                                 SCTP_TCB_UNLOCK(stcb);
4095                                         }
4096                                         SCTP_INP_RUNLOCK(inp);
4097                                 }
4098                         }
4099                         break;
4100                 }
4101         case SCTP_VRF_ID:
4102                 {
4103                         uint32_t *default_vrfid;
4104
4105                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4106                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4107                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4108                                 error = EINVAL;
4109                                 break;
4110                         }
4111                         inp->def_vrf_id = *default_vrfid;
4112                         break;
4113                 }
4114         case SCTP_DEL_VRF_ID:
4115                 {
4116                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4117                         error = EOPNOTSUPP;
4118                         break;
4119                 }
4120         case SCTP_ADD_VRF_ID:
4121                 {
4122                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4123                         error = EOPNOTSUPP;
4124                         break;
4125                 }
4126         case SCTP_DELAYED_SACK:
4127                 {
4128                         struct sctp_sack_info *sack;
4129
4130                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4131                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4132                         if (sack->sack_delay) {
4133                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4134                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4135                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4136                                         sack->sack_delay = TICKS_TO_MSEC(1);
4137                                 }
4138                         }
4139                         if (stcb) {
4140                                 if (sack->sack_delay) {
4141                                         stcb->asoc.delayed_ack = sack->sack_delay;
4142                                 }
4143                                 if (sack->sack_freq) {
4144                                         stcb->asoc.sack_freq = sack->sack_freq;
4145                                 }
4146                                 SCTP_TCB_UNLOCK(stcb);
4147                         } else {
4148                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4149                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4150                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4151                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4152                                         SCTP_INP_WLOCK(inp);
4153                                         if (sack->sack_delay) {
4154                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4155                                         }
4156                                         if (sack->sack_freq) {
4157                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4158                                         }
4159                                         SCTP_INP_WUNLOCK(inp);
4160                                 }
4161                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4162                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4163                                         SCTP_INP_RLOCK(inp);
4164                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4165                                                 SCTP_TCB_LOCK(stcb);
4166                                                 if (sack->sack_delay) {
4167                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4168                                                 }
4169                                                 if (sack->sack_freq) {
4170                                                         stcb->asoc.sack_freq = sack->sack_freq;
4171                                                 }
4172                                                 SCTP_TCB_UNLOCK(stcb);
4173                                         }
4174                                         SCTP_INP_RUNLOCK(inp);
4175                                 }
4176                         }
4177                         break;
4178                 }
4179         case SCTP_AUTH_CHUNK:
4180                 {
4181                         struct sctp_authchunk *sauth;
4182
4183                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4184
4185                         SCTP_INP_WLOCK(inp);
4186                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4187                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4188                                 error = EINVAL;
4189                         }
4190                         SCTP_INP_WUNLOCK(inp);
4191                         break;
4192                 }
4193         case SCTP_AUTH_KEY:
4194                 {
4195                         struct sctp_authkey *sca;
4196                         struct sctp_keyhead *shared_keys;
4197                         sctp_sharedkey_t *shared_key;
4198                         sctp_key_t *key = NULL;
4199                         size_t size;
4200
4201                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4202                         if (sca->sca_keylength == 0) {
4203                                 size = optsize - sizeof(struct sctp_authkey);
4204                         } else {
4205                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4206                                         size = sca->sca_keylength;
4207                                 } else {
4208                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4209                                         error = EINVAL;
4210                                         break;
4211                                 }
4212                         }
4213                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4214
4215                         if (stcb) {
4216                                 shared_keys = &stcb->asoc.shared_keys;
4217                                 /* clear the cached keys for this key id */
4218                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4219                                 /*
4220                                  * create the new shared key and
4221                                  * insert/replace it
4222                                  */
4223                                 if (size > 0) {
4224                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4225                                         if (key == NULL) {
4226                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4227                                                 error = ENOMEM;
4228                                                 SCTP_TCB_UNLOCK(stcb);
4229                                                 break;
4230                                         }
4231                                 }
4232                                 shared_key = sctp_alloc_sharedkey();
4233                                 if (shared_key == NULL) {
4234                                         sctp_free_key(key);
4235                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4236                                         error = ENOMEM;
4237                                         SCTP_TCB_UNLOCK(stcb);
4238                                         break;
4239                                 }
4240                                 shared_key->key = key;
4241                                 shared_key->keyid = sca->sca_keynumber;
4242                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4243                                 SCTP_TCB_UNLOCK(stcb);
4244                         } else {
4245                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4246                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4247                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4248                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4249                                         SCTP_INP_WLOCK(inp);
4250                                         shared_keys = &inp->sctp_ep.shared_keys;
4251                                         /*
4252                                          * clear the cached keys on all
4253                                          * assocs for this key id
4254                                          */
4255                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4256                                         /*
4257                                          * create the new shared key and
4258                                          * insert/replace it
4259                                          */
4260                                         if (size > 0) {
4261                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4262                                                 if (key == NULL) {
4263                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4264                                                         error = ENOMEM;
4265                                                         SCTP_INP_WUNLOCK(inp);
4266                                                         break;
4267                                                 }
4268                                         }
4269                                         shared_key = sctp_alloc_sharedkey();
4270                                         if (shared_key == NULL) {
4271                                                 sctp_free_key(key);
4272                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4273                                                 error = ENOMEM;
4274                                                 SCTP_INP_WUNLOCK(inp);
4275                                                 break;
4276                                         }
4277                                         shared_key->key = key;
4278                                         shared_key->keyid = sca->sca_keynumber;
4279                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4280                                         SCTP_INP_WUNLOCK(inp);
4281                                 }
4282                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4283                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4284                                         SCTP_INP_RLOCK(inp);
4285                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4286                                                 SCTP_TCB_LOCK(stcb);
4287                                                 shared_keys = &stcb->asoc.shared_keys;
4288                                                 /*
4289                                                  * clear the cached keys for
4290                                                  * this key id
4291                                                  */
4292                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4293                                                 /*
4294                                                  * create the new shared key
4295                                                  * and insert/replace it
4296                                                  */
4297                                                 if (size > 0) {
4298                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4299                                                         if (key == NULL) {
4300                                                                 SCTP_TCB_UNLOCK(stcb);
4301                                                                 continue;
4302                                                         }
4303                                                 }
4304                                                 shared_key = sctp_alloc_sharedkey();
4305                                                 if (shared_key == NULL) {
4306                                                         sctp_free_key(key);
4307                                                         SCTP_TCB_UNLOCK(stcb);
4308                                                         continue;
4309                                                 }
4310                                                 shared_key->key = key;
4311                                                 shared_key->keyid = sca->sca_keynumber;
4312                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4313                                                 SCTP_TCB_UNLOCK(stcb);
4314                                         }
4315                                         SCTP_INP_RUNLOCK(inp);
4316                                 }
4317                         }
4318                         break;
4319                 }
4320         case SCTP_HMAC_IDENT:
4321                 {
4322                         struct sctp_hmacalgo *shmac;
4323                         sctp_hmaclist_t *hmaclist;
4324                         uint16_t hmacid;
4325                         uint32_t i;
4326
4327                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4328                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4329                             (shmac->shmac_number_of_idents > 0xffff)) {
4330                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4331                                 error = EINVAL;
4332                                 break;
4333                         }
4334                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4335                         if (hmaclist == NULL) {
4336                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4337                                 error = ENOMEM;
4338                                 break;
4339                         }
4340                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4341                                 hmacid = shmac->shmac_idents[i];
4342                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4343                                          /* invalid HMACs were found */ ;
4344                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4345                                         error = EINVAL;
4346                                         sctp_free_hmaclist(hmaclist);
4347                                         goto sctp_set_hmac_done;
4348                                 }
4349                         }
4350                         for (i = 0; i < hmaclist->num_algo; i++) {
4351                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4352                                         /* already in list */
4353                                         break;
4354                                 }
4355                         }
4356                         if (i == hmaclist->num_algo) {
4357                                 /* not found in list */
4358                                 sctp_free_hmaclist(hmaclist);
4359                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4360                                 error = EINVAL;
4361                                 break;
4362                         }
4363                         /* set it on the endpoint */
4364                         SCTP_INP_WLOCK(inp);
4365                         if (inp->sctp_ep.local_hmacs)
4366                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4367                         inp->sctp_ep.local_hmacs = hmaclist;
4368                         SCTP_INP_WUNLOCK(inp);
4369         sctp_set_hmac_done:
4370                         break;
4371                 }
4372         case SCTP_AUTH_ACTIVE_KEY:
4373                 {
4374                         struct sctp_authkeyid *scact;
4375
4376                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4377                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4378
4379                         /* set the active key on the right place */
4380                         if (stcb) {
4381                                 /* set the active key on the assoc */
4382                                 if (sctp_auth_setactivekey(stcb,
4383                                     scact->scact_keynumber)) {
4384                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4385                                             SCTP_FROM_SCTP_USRREQ,
4386                                             EINVAL);
4387                                         error = EINVAL;
4388                                 }
4389                                 SCTP_TCB_UNLOCK(stcb);
4390                         } else {
4391                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4392                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4393                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4394                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4395                                         SCTP_INP_WLOCK(inp);
4396                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4397                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4398                                                 error = EINVAL;
4399                                         }
4400                                         SCTP_INP_WUNLOCK(inp);
4401                                 }
4402                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4403                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4404                                         SCTP_INP_RLOCK(inp);
4405                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4406                                                 SCTP_TCB_LOCK(stcb);
4407                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4408                                                 SCTP_TCB_UNLOCK(stcb);
4409                                         }
4410                                         SCTP_INP_RUNLOCK(inp);
4411                                 }
4412                         }
4413                         break;
4414                 }
4415         case SCTP_AUTH_DELETE_KEY:
4416                 {
4417                         struct sctp_authkeyid *scdel;
4418
4419                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4420                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4421
4422                         /* delete the key from the right place */
4423                         if (stcb) {
4424                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4425                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4426                                         error = EINVAL;
4427                                 }
4428                                 SCTP_TCB_UNLOCK(stcb);
4429                         } else {
4430                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4431                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4432                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4433                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4434                                         SCTP_INP_WLOCK(inp);
4435                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4436                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4437                                                 error = EINVAL;
4438                                         }
4439                                         SCTP_INP_WUNLOCK(inp);
4440                                 }
4441                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4442                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4443                                         SCTP_INP_RLOCK(inp);
4444                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4445                                                 SCTP_TCB_LOCK(stcb);
4446                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4447                                                 SCTP_TCB_UNLOCK(stcb);
4448                                         }
4449                                         SCTP_INP_RUNLOCK(inp);
4450                                 }
4451                         }
4452                         break;
4453                 }
4454         case SCTP_AUTH_DEACTIVATE_KEY:
4455                 {
4456                         struct sctp_authkeyid *keyid;
4457
4458                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4459                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4460
4461                         /* deactivate the key from the right place */
4462                         if (stcb) {
4463                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4464                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4465                                         error = EINVAL;
4466                                 }
4467                                 SCTP_TCB_UNLOCK(stcb);
4468                         } else {
4469                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4470                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4471                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4472                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4473                                         SCTP_INP_WLOCK(inp);
4474                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4475                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4476                                                 error = EINVAL;
4477                                         }
4478                                         SCTP_INP_WUNLOCK(inp);
4479                                 }
4480                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4481                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4482                                         SCTP_INP_RLOCK(inp);
4483                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4484                                                 SCTP_TCB_LOCK(stcb);
4485                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4486                                                 SCTP_TCB_UNLOCK(stcb);
4487                                         }
4488                                         SCTP_INP_RUNLOCK(inp);
4489                                 }
4490                         }
4491                         break;
4492                 }
4493         case SCTP_ENABLE_STREAM_RESET:
4494                 {
4495                         struct sctp_assoc_value *av;
4496
4497                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4498                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4499                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4500                                 error = EINVAL;
4501                                 break;
4502                         }
4503                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4504                         if (stcb) {
4505                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4506                                 SCTP_TCB_UNLOCK(stcb);
4507                         } else {
4508                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4509                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4510                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4511                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4512                                         SCTP_INP_WLOCK(inp);
4513                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4514                                         SCTP_INP_WUNLOCK(inp);
4515                                 }
4516                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4517                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4518                                         SCTP_INP_RLOCK(inp);
4519                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4520                                                 SCTP_TCB_LOCK(stcb);
4521                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4522                                                 SCTP_TCB_UNLOCK(stcb);
4523                                         }
4524                                         SCTP_INP_RUNLOCK(inp);
4525                                 }
4526                         }
4527                         break;
4528                 }
4529         case SCTP_RESET_STREAMS:
4530                 {
4531                         struct sctp_reset_streams *strrst;
4532                         int i, send_out = 0;
4533                         int send_in = 0;
4534
4535                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4536                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4537                         if (stcb == NULL) {
4538                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4539                                 error = ENOENT;
4540                                 break;
4541                         }
4542                         if (stcb->asoc.reconfig_supported == 0) {
4543                                 /*
4544                                  * Peer does not support the chunk type.
4545                                  */
4546                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4547                                 error = EOPNOTSUPP;
4548                                 SCTP_TCB_UNLOCK(stcb);
4549                                 break;
4550                         }
4551                         if (sizeof(struct sctp_reset_streams) +
4552                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4553                                 error = EINVAL;
4554                                 SCTP_TCB_UNLOCK(stcb);
4555                                 break;
4556                         }
4557                         if (stcb->asoc.stream_reset_outstanding) {
4558                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4559                                 error = EALREADY;
4560                                 SCTP_TCB_UNLOCK(stcb);
4561                                 break;
4562                         }
4563                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4564                                 send_in = 1;
4565                         }
4566                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4567                                 send_out = 1;
4568                         }
4569                         if ((send_in == 0) && (send_out == 0)) {
4570                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4571                                 error = EINVAL;
4572                                 SCTP_TCB_UNLOCK(stcb);
4573                                 break;
4574                         }
4575                         for (i = 0; i < strrst->srs_number_streams; i++) {
4576                                 if ((send_in) &&
4577                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4578                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4579                                         error = EINVAL;
4580                                         break;
4581                                 }
4582                                 if ((send_out) &&
4583                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4584                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4585                                         error = EINVAL;
4586                                         break;
4587                                 }
4588                         }
4589                         if (error) {
4590                                 SCTP_TCB_UNLOCK(stcb);
4591                                 break;
4592                         }
4593                         error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4594                             strrst->srs_stream_list,
4595                             send_out, send_in, 0, 0, 0, 0, 0);
4596
4597                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4598                         SCTP_TCB_UNLOCK(stcb);
4599                         break;
4600                 }
4601         case SCTP_ADD_STREAMS:
4602                 {
4603                         struct sctp_add_streams *stradd;
4604                         uint8_t addstream = 0;
4605                         uint16_t add_o_strmcnt = 0;
4606                         uint16_t add_i_strmcnt = 0;
4607
4608                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4609                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4610                         if (stcb == NULL) {
4611                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4612                                 error = ENOENT;
4613                                 break;
4614                         }
4615                         if (stcb->asoc.reconfig_supported == 0) {
4616                                 /*
4617                                  * Peer does not support the chunk type.
4618                                  */
4619                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4620                                 error = EOPNOTSUPP;
4621                                 SCTP_TCB_UNLOCK(stcb);
4622                                 break;
4623                         }
4624                         if (stcb->asoc.stream_reset_outstanding) {
4625                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4626                                 error = EALREADY;
4627                                 SCTP_TCB_UNLOCK(stcb);
4628                                 break;
4629                         }
4630                         if ((stradd->sas_outstrms == 0) &&
4631                             (stradd->sas_instrms == 0)) {
4632                                 error = EINVAL;
4633                                 goto skip_stuff;
4634                         }
4635                         if (stradd->sas_outstrms) {
4636                                 addstream = 1;
4637                                 /* We allocate here */
4638                                 add_o_strmcnt = stradd->sas_outstrms;
4639                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4640                                         /* You can't have more than 64k */
4641                                         error = EINVAL;
4642                                         goto skip_stuff;
4643                                 }
4644                         }
4645                         if (stradd->sas_instrms) {
4646                                 int cnt;
4647
4648                                 addstream |= 2;
4649                                 /*
4650                                  * We allocate inside
4651                                  * sctp_send_str_reset_req()
4652                                  */
4653                                 add_i_strmcnt = stradd->sas_instrms;
4654                                 cnt = add_i_strmcnt;
4655                                 cnt += stcb->asoc.streamincnt;
4656                                 if (cnt > 0x0000ffff) {
4657                                         /* You can't have more than 64k */
4658                                         error = EINVAL;
4659                                         goto skip_stuff;
4660                                 }
4661                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4662                                         /* More than you are allowed */
4663                                         error = EINVAL;
4664                                         goto skip_stuff;
4665                                 }
4666                         }
4667                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4668                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4669         skip_stuff:
4670                         SCTP_TCB_UNLOCK(stcb);
4671                         break;
4672                 }
4673         case SCTP_RESET_ASSOC:
4674                 {
4675                         uint32_t *value;
4676
4677                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4678                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4679                         if (stcb == NULL) {
4680                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4681                                 error = ENOENT;
4682                                 break;
4683                         }
4684                         if (stcb->asoc.reconfig_supported == 0) {
4685                                 /*
4686                                  * Peer does not support the chunk type.
4687                                  */
4688                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4689                                 error = EOPNOTSUPP;
4690                                 SCTP_TCB_UNLOCK(stcb);
4691                                 break;
4692                         }
4693                         if (stcb->asoc.stream_reset_outstanding) {
4694                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4695                                 error = EALREADY;
4696                                 SCTP_TCB_UNLOCK(stcb);
4697                                 break;
4698                         }
4699                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, 1, 0, 0, 0, 0);
4700                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4701                         SCTP_TCB_UNLOCK(stcb);
4702                         break;
4703                 }
4704         case SCTP_CONNECT_X:
4705                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4706                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4707                         error = EINVAL;
4708                         break;
4709                 }
4710                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4711                 break;
4712         case SCTP_CONNECT_X_DELAYED:
4713                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4714                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4715                         error = EINVAL;
4716                         break;
4717                 }
4718                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4719                 break;
4720         case SCTP_CONNECT_X_COMPLETE:
4721                 {
4722                         struct sockaddr *sa;
4723                         struct sctp_nets *net;
4724
4725                         /* FIXME MT: check correct? */
4726                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4727
4728                         /* find tcb */
4729                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4730                                 SCTP_INP_RLOCK(inp);
4731                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4732                                 if (stcb) {
4733                                         SCTP_TCB_LOCK(stcb);
4734                                         net = sctp_findnet(stcb, sa);
4735                                 }
4736                                 SCTP_INP_RUNLOCK(inp);
4737                         } else {
4738                                 /*
4739                                  * We increment here since
4740                                  * sctp_findassociation_ep_addr() wil do a
4741                                  * decrement if it finds the stcb as long as
4742                                  * the locked tcb (last argument) is NOT a
4743                                  * TCB.. aka NULL.
4744                                  */
4745                                 SCTP_INP_INCR_REF(inp);
4746                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4747                                 if (stcb == NULL) {
4748                                         SCTP_INP_DECR_REF(inp);
4749                                 }
4750                         }
4751
4752                         if (stcb == NULL) {
4753                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4754                                 error = ENOENT;
4755                                 break;
4756                         }
4757                         if (stcb->asoc.delayed_connection == 1) {
4758                                 stcb->asoc.delayed_connection = 0;
4759                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4760                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4761                                     stcb->asoc.primary_destination,
4762                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4763                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4764                         } else {
4765                                 /*
4766                                  * already expired or did not use delayed
4767                                  * connectx
4768                                  */
4769                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4770                                 error = EALREADY;
4771                         }
4772                         SCTP_TCB_UNLOCK(stcb);
4773                         break;
4774                 }
4775         case SCTP_MAX_BURST:
4776                 {
4777                         struct sctp_assoc_value *av;
4778
4779                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4780                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4781
4782                         if (stcb) {
4783                                 stcb->asoc.max_burst = av->assoc_value;
4784                                 SCTP_TCB_UNLOCK(stcb);
4785                         } else {
4786                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4787                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4788                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4789                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4790                                         SCTP_INP_WLOCK(inp);
4791                                         inp->sctp_ep.max_burst = av->assoc_value;
4792                                         SCTP_INP_WUNLOCK(inp);
4793                                 }
4794                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4795                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4796                                         SCTP_INP_RLOCK(inp);
4797                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4798                                                 SCTP_TCB_LOCK(stcb);
4799                                                 stcb->asoc.max_burst = av->assoc_value;
4800                                                 SCTP_TCB_UNLOCK(stcb);
4801                                         }
4802                                         SCTP_INP_RUNLOCK(inp);
4803                                 }
4804                         }
4805                         break;
4806                 }
4807         case SCTP_MAXSEG:
4808                 {
4809                         struct sctp_assoc_value *av;
4810                         int ovh;
4811
4812                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4813                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4814
4815                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4816                                 ovh = SCTP_MED_OVERHEAD;
4817                         } else {
4818                                 ovh = SCTP_MED_V4_OVERHEAD;
4819                         }
4820                         if (stcb) {
4821                                 if (av->assoc_value) {
4822                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4823                                 } else {
4824                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4825                                 }
4826                                 SCTP_TCB_UNLOCK(stcb);
4827                         } else {
4828                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4829                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4830                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4831                                         SCTP_INP_WLOCK(inp);
4832                                         /*
4833                                          * FIXME MT: I think this is not in
4834                                          * tune with the API ID
4835                                          */
4836                                         if (av->assoc_value) {
4837                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4838                                         } else {
4839                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4840                                         }
4841                                         SCTP_INP_WUNLOCK(inp);
4842                                 } else {
4843                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4844                                         error = EINVAL;
4845                                 }
4846                         }
4847                         break;
4848                 }
4849         case SCTP_EVENTS:
4850                 {
4851                         struct sctp_event_subscribe *events;
4852
4853                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4854
4855                         SCTP_INP_WLOCK(inp);
4856                         if (events->sctp_data_io_event) {
4857                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4858                         } else {
4859                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4860                         }
4861
4862                         if (events->sctp_association_event) {
4863                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4864                         } else {
4865                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4866                         }
4867
4868                         if (events->sctp_address_event) {
4869                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4870                         } else {
4871                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4872                         }
4873
4874                         if (events->sctp_send_failure_event) {
4875                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4876                         } else {
4877                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4878                         }
4879
4880                         if (events->sctp_peer_error_event) {
4881                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4882                         } else {
4883                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4884                         }
4885
4886                         if (events->sctp_shutdown_event) {
4887                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4888                         } else {
4889                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4890                         }
4891
4892                         if (events->sctp_partial_delivery_event) {
4893                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4894                         } else {
4895                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4896                         }
4897
4898                         if (events->sctp_adaptation_layer_event) {
4899                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4900                         } else {
4901                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4902                         }
4903
4904                         if (events->sctp_authentication_event) {
4905                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4906                         } else {
4907                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4908                         }
4909
4910                         if (events->sctp_sender_dry_event) {
4911                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4912                         } else {
4913                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4914                         }
4915
4916                         if (events->sctp_stream_reset_event) {
4917                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4918                         } else {
4919                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4920                         }
4921                         SCTP_INP_WUNLOCK(inp);
4922
4923                         SCTP_INP_RLOCK(inp);
4924                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4925                                 SCTP_TCB_LOCK(stcb);
4926                                 if (events->sctp_association_event) {
4927                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4928                                 } else {
4929                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4930                                 }
4931                                 if (events->sctp_address_event) {
4932                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4933                                 } else {
4934                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4935                                 }
4936                                 if (events->sctp_send_failure_event) {
4937                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4938                                 } else {
4939                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4940                                 }
4941                                 if (events->sctp_peer_error_event) {
4942                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4943                                 } else {
4944                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4945                                 }
4946                                 if (events->sctp_shutdown_event) {
4947                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4948                                 } else {
4949                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4950                                 }
4951                                 if (events->sctp_partial_delivery_event) {
4952                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4953                                 } else {
4954                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4955                                 }
4956                                 if (events->sctp_adaptation_layer_event) {
4957                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4958                                 } else {
4959                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4960                                 }
4961                                 if (events->sctp_authentication_event) {
4962                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4963                                 } else {
4964                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4965                                 }
4966                                 if (events->sctp_sender_dry_event) {
4967                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4968                                 } else {
4969                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4970                                 }
4971                                 if (events->sctp_stream_reset_event) {
4972                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4973                                 } else {
4974                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4975                                 }
4976                                 SCTP_TCB_UNLOCK(stcb);
4977                         }
4978                         /*
4979                          * Send up the sender dry event only for 1-to-1
4980                          * style sockets.
4981                          */
4982                         if (events->sctp_sender_dry_event) {
4983                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4984                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4985                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4986                                         if (stcb) {
4987                                                 SCTP_TCB_LOCK(stcb);
4988                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4989                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4990                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4991                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4992                                                 }
4993                                                 SCTP_TCB_UNLOCK(stcb);
4994                                         }
4995                                 }
4996                         }
4997                         SCTP_INP_RUNLOCK(inp);
4998                         break;
4999                 }
5000         case SCTP_ADAPTATION_LAYER:
5001                 {
5002                         struct sctp_setadaptation *adap_bits;
5003
5004                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5005                         SCTP_INP_WLOCK(inp);
5006                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5007                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5008                         SCTP_INP_WUNLOCK(inp);
5009                         break;
5010                 }
5011 #ifdef SCTP_DEBUG
5012         case SCTP_SET_INITIAL_DBG_SEQ:
5013                 {
5014                         uint32_t *vvv;
5015
5016                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5017                         SCTP_INP_WLOCK(inp);
5018                         inp->sctp_ep.initial_sequence_debug = *vvv;
5019                         SCTP_INP_WUNLOCK(inp);
5020                         break;
5021                 }
5022 #endif
5023         case SCTP_DEFAULT_SEND_PARAM:
5024                 {
5025                         struct sctp_sndrcvinfo *s_info;
5026
5027                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5028                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5029
5030                         if (stcb) {
5031                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5032                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5033                                 } else {
5034                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5035                                         error = EINVAL;
5036                                 }
5037                                 SCTP_TCB_UNLOCK(stcb);
5038                         } else {
5039                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5040                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5041                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5042                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5043                                         SCTP_INP_WLOCK(inp);
5044                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5045                                         SCTP_INP_WUNLOCK(inp);
5046                                 }
5047                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5048                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5049                                         SCTP_INP_RLOCK(inp);
5050                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5051                                                 SCTP_TCB_LOCK(stcb);
5052                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5053                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5054                                                 }
5055                                                 SCTP_TCB_UNLOCK(stcb);
5056                                         }
5057                                         SCTP_INP_RUNLOCK(inp);
5058                                 }
5059                         }
5060                         break;
5061                 }
5062         case SCTP_PEER_ADDR_PARAMS:
5063                 {
5064                         struct sctp_paddrparams *paddrp;
5065                         struct sctp_nets *net;
5066                         struct sockaddr *addr;
5067
5068 #if defined(INET) && defined(INET6)
5069                         struct sockaddr_in sin_store;
5070
5071 #endif
5072
5073                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5074                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5075
5076 #if defined(INET) && defined(INET6)
5077                         if (paddrp->spp_address.ss_family == AF_INET6) {
5078                                 struct sockaddr_in6 *sin6;
5079
5080                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5081                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5082                                         in6_sin6_2_sin(&sin_store, sin6);
5083                                         addr = (struct sockaddr *)&sin_store;
5084                                 } else {
5085                                         addr = (struct sockaddr *)&paddrp->spp_address;
5086                                 }
5087                         } else {
5088                                 addr = (struct sockaddr *)&paddrp->spp_address;
5089                         }
5090 #else
5091                         addr = (struct sockaddr *)&paddrp->spp_address;
5092 #endif
5093                         if (stcb != NULL) {
5094                                 net = sctp_findnet(stcb, addr);
5095                         } else {
5096                                 /*
5097                                  * We increment here since
5098                                  * sctp_findassociation_ep_addr() wil do a
5099                                  * decrement if it finds the stcb as long as
5100                                  * the locked tcb (last argument) is NOT a
5101                                  * TCB.. aka NULL.
5102                                  */
5103                                 net = NULL;
5104                                 SCTP_INP_INCR_REF(inp);
5105                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5106                                     &net, NULL, NULL);
5107                                 if (stcb == NULL) {
5108                                         SCTP_INP_DECR_REF(inp);
5109                                 }
5110                         }
5111                         if ((stcb != NULL) && (net == NULL)) {
5112 #ifdef INET
5113                                 if (addr->sa_family == AF_INET) {
5114
5115                                         struct sockaddr_in *sin;
5116
5117                                         sin = (struct sockaddr_in *)addr;
5118                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5119                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5120                                                 SCTP_TCB_UNLOCK(stcb);
5121                                                 error = EINVAL;
5122                                                 break;
5123                                         }
5124                                 } else
5125 #endif
5126 #ifdef INET6
5127                                 if (addr->sa_family == AF_INET6) {
5128                                         struct sockaddr_in6 *sin6;
5129
5130                                         sin6 = (struct sockaddr_in6 *)addr;
5131                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5132                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5133                                                 SCTP_TCB_UNLOCK(stcb);
5134                                                 error = EINVAL;
5135                                                 break;
5136                                         }
5137                                 } else
5138 #endif
5139                                 {
5140                                         error = EAFNOSUPPORT;
5141                                         SCTP_TCB_UNLOCK(stcb);
5142                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5143                                         break;
5144                                 }
5145                         }
5146                         /* sanity checks */
5147                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5148                                 if (stcb)
5149                                         SCTP_TCB_UNLOCK(stcb);
5150                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5151                                 return (EINVAL);
5152                         }
5153                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5154                                 if (stcb)
5155                                         SCTP_TCB_UNLOCK(stcb);
5156                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5157                                 return (EINVAL);
5158                         }
5159                         if (stcb != NULL) {
5160                                 /************************TCB SPECIFIC SET ******************/
5161                                 /*
5162                                  * do we change the timer for HB, we run
5163                                  * only one?
5164                                  */
5165                                 int ovh = 0;
5166
5167                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5168                                         ovh = SCTP_MED_OVERHEAD;
5169                                 } else {
5170                                         ovh = SCTP_MED_V4_OVERHEAD;
5171                                 }
5172
5173                                 /* network sets ? */
5174                                 if (net != NULL) {
5175                                         /************************NET SPECIFIC SET ******************/
5176                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5177                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5178                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5179                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5180                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5181                                                 }
5182                                                 net->dest_state |= SCTP_ADDR_NOHB;
5183                                         }
5184                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5185                                                 if (paddrp->spp_hbinterval) {
5186                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5187                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5188                                                         net->heart_beat_delay = 0;
5189                                                 }
5190                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5191                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5192                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5193                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5194                                         }
5195                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5196                                                 /* on demand HB */
5197                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5198                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5199                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5200                                         }
5201                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5202                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5203                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5204                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5205                                                 }
5206                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5207                                                 net->mtu = paddrp->spp_pathmtu + ovh;
5208                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5209                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5210                                                 }
5211                                         }
5212                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5213                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5214                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5215                                                 }
5216                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5217                                         }
5218                                         if (paddrp->spp_pathmaxrxt) {
5219                                                 if (net->dest_state & SCTP_ADDR_PF) {
5220                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5221                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5222                                                         }
5223                                                 } else {
5224                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5225                                                             (net->error_count > net->pf_threshold)) {
5226                                                                 net->dest_state |= SCTP_ADDR_PF;
5227                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5228                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5229                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5230                                                         }
5231                                                 }
5232                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5233                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5234                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5235                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5236                                                         }
5237                                                 } else {
5238                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5239                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5240                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5241                                                         }
5242                                                 }
5243                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5244                                         }
5245                                         if (paddrp->spp_flags & SPP_DSCP) {
5246                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5247                                                 net->dscp |= 0x01;
5248                                         }
5249 #ifdef INET6
5250                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5251                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5252                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5253                                                         net->flowlabel |= 0x80000000;
5254                                                 }
5255                                         }
5256 #endif
5257                                 } else {
5258                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5259                                         if (paddrp->spp_pathmaxrxt != 0) {
5260                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5261                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5262                                                         if (net->dest_state & SCTP_ADDR_PF) {
5263                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5264                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5265                                                                 }
5266                                                         } else {
5267                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5268                                                                     (net->error_count > net->pf_threshold)) {
5269                                                                         net->dest_state |= SCTP_ADDR_PF;
5270                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5271                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5272                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5273                                                                 }
5274                                                         }
5275                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5276                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5277                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5278                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5279                                                                 }
5280                                                         } else {
5281                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5282                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5283                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5284                                                                 }
5285                                                         }
5286                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5287                                                 }
5288                                         }
5289                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5290                                                 if (paddrp->spp_hbinterval != 0) {
5291                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5292                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5293                                                         stcb->asoc.heart_beat_delay = 0;
5294                                                 }
5295                                                 /* Turn back on the timer */
5296                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5297                                                         if (paddrp->spp_hbinterval != 0) {
5298                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5299                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5300                                                                 net->heart_beat_delay = 0;
5301                                                         }
5302                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5303                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5304                                                         }
5305                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5306                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5307                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5308                                                 }
5309                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5310                                         }
5311                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5312                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5313                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5314                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5315                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5316                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5317                                                                 }
5318                                                         }
5319                                                 }
5320                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5321                                         }
5322                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5323                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5324                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5325                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5326                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5327                                                         }
5328                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5329                                                         net->mtu = paddrp->spp_pathmtu + ovh;
5330                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5331                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5332                                                         }
5333                                                 }
5334                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5335                                         }
5336                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5337                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5338                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5339                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5340                                                         }
5341                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5342                                                 }
5343                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5344                                         }
5345                                         if (paddrp->spp_flags & SPP_DSCP) {
5346                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5347                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5348                                                         net->dscp |= 0x01;
5349                                                 }
5350                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5351                                                 stcb->asoc.default_dscp |= 0x01;
5352                                         }
5353 #ifdef INET6
5354                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5355                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5356                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5357                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5358                                                                 net->flowlabel |= 0x80000000;
5359                                                         }
5360                                                 }
5361                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5362                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5363                                         }
5364 #endif
5365                                 }
5366                                 SCTP_TCB_UNLOCK(stcb);
5367                         } else {
5368                                 /************************NO TCB, SET TO default stuff ******************/
5369                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5370                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5371                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5372                                         SCTP_INP_WLOCK(inp);
5373                                         /*
5374                                          * For the TOS/FLOWLABEL stuff you
5375                                          * set it with the options on the
5376                                          * socket
5377                                          */
5378                                         if (paddrp->spp_pathmaxrxt != 0) {
5379                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5380                                         }
5381                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5382                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5383                                         else if (paddrp->spp_hbinterval != 0) {
5384                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5385                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5386                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5387                                         }
5388                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5389                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5390                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5391                                                 } else if (paddrp->spp_hbinterval) {
5392                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5393                                                 }
5394                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5395                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5396                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5397                                         }
5398                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5399                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5400                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5401                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5402                                         }
5403                                         if (paddrp->spp_flags & SPP_DSCP) {
5404                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5405                                                 inp->sctp_ep.default_dscp |= 0x01;
5406                                         }
5407 #ifdef INET6
5408                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5409                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5410                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5411                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5412                                                 }
5413                                         }
5414 #endif
5415                                         SCTP_INP_WUNLOCK(inp);
5416                                 } else {
5417                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5418                                         error = EINVAL;
5419                                 }
5420                         }
5421                         break;
5422                 }
5423         case SCTP_RTOINFO:
5424                 {
5425                         struct sctp_rtoinfo *srto;
5426                         uint32_t new_init, new_min, new_max;
5427
5428                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5429                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5430
5431                         if (stcb) {
5432                                 if (srto->srto_initial)
5433                                         new_init = srto->srto_initial;
5434                                 else
5435                                         new_init = stcb->asoc.initial_rto;
5436                                 if (srto->srto_max)
5437                                         new_max = srto->srto_max;
5438                                 else
5439                                         new_max = stcb->asoc.maxrto;
5440                                 if (srto->srto_min)
5441                                         new_min = srto->srto_min;
5442                                 else
5443                                         new_min = stcb->asoc.minrto;
5444                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5445                                         stcb->asoc.initial_rto = new_init;
5446                                         stcb->asoc.maxrto = new_max;
5447                                         stcb->asoc.minrto = new_min;
5448                                 } else {
5449                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5450                                         error = EINVAL;
5451                                 }
5452                                 SCTP_TCB_UNLOCK(stcb);
5453                         } else {
5454                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5455                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5456                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5457                                         SCTP_INP_WLOCK(inp);
5458                                         if (srto->srto_initial)
5459                                                 new_init = srto->srto_initial;
5460                                         else
5461                                                 new_init = inp->sctp_ep.initial_rto;
5462                                         if (srto->srto_max)
5463                                                 new_max = srto->srto_max;
5464                                         else
5465                                                 new_max = inp->sctp_ep.sctp_maxrto;
5466                                         if (srto->srto_min)
5467                                                 new_min = srto->srto_min;
5468                                         else
5469                                                 new_min = inp->sctp_ep.sctp_minrto;
5470                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5471                                                 inp->sctp_ep.initial_rto = new_init;
5472                                                 inp->sctp_ep.sctp_maxrto = new_max;
5473                                                 inp->sctp_ep.sctp_minrto = new_min;
5474                                         } else {
5475                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5476                                                 error = EINVAL;
5477                                         }
5478                                         SCTP_INP_WUNLOCK(inp);
5479                                 } else {
5480                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5481                                         error = EINVAL;
5482                                 }
5483                         }
5484                         break;
5485                 }
5486         case SCTP_ASSOCINFO:
5487                 {
5488                         struct sctp_assocparams *sasoc;
5489
5490                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5491                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5492                         if (sasoc->sasoc_cookie_life) {
5493                                 /* boundary check the cookie life */
5494                                 if (sasoc->sasoc_cookie_life < 1000)
5495                                         sasoc->sasoc_cookie_life = 1000;
5496                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5497                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5498                                 }
5499                         }
5500                         if (stcb) {
5501                                 if (sasoc->sasoc_asocmaxrxt)
5502                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5503                                 if (sasoc->sasoc_cookie_life) {
5504                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5505                                 }
5506                                 SCTP_TCB_UNLOCK(stcb);
5507                         } else {
5508                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5509                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5510                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5511                                         SCTP_INP_WLOCK(inp);
5512                                         if (sasoc->sasoc_asocmaxrxt)
5513                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5514                                         if (sasoc->sasoc_cookie_life) {
5515                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5516                                         }
5517                                         SCTP_INP_WUNLOCK(inp);
5518                                 } else {
5519                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5520                                         error = EINVAL;
5521                                 }
5522                         }
5523                         break;
5524                 }
5525         case SCTP_INITMSG:
5526                 {
5527                         struct sctp_initmsg *sinit;
5528
5529                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5530                         SCTP_INP_WLOCK(inp);
5531                         if (sinit->sinit_num_ostreams)
5532                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5533
5534                         if (sinit->sinit_max_instreams)
5535                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5536
5537                         if (sinit->sinit_max_attempts)
5538                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5539
5540                         if (sinit->sinit_max_init_timeo)
5541                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5542                         SCTP_INP_WUNLOCK(inp);
5543                         break;
5544                 }
5545         case SCTP_PRIMARY_ADDR:
5546                 {
5547                         struct sctp_setprim *spa;
5548                         struct sctp_nets *net;
5549                         struct sockaddr *addr;
5550
5551 #if defined(INET) && defined(INET6)
5552                         struct sockaddr_in sin_store;
5553
5554 #endif
5555
5556                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5557                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5558
5559 #if defined(INET) && defined(INET6)
5560                         if (spa->ssp_addr.ss_family == AF_INET6) {
5561                                 struct sockaddr_in6 *sin6;
5562
5563                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5564                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5565                                         in6_sin6_2_sin(&sin_store, sin6);
5566                                         addr = (struct sockaddr *)&sin_store;
5567                                 } else {
5568                                         addr = (struct sockaddr *)&spa->ssp_addr;
5569                                 }
5570                         } else {
5571                                 addr = (struct sockaddr *)&spa->ssp_addr;
5572                         }
5573 #else
5574                         addr = (struct sockaddr *)&spa->ssp_addr;
5575 #endif
5576                         if (stcb != NULL) {
5577                                 net = sctp_findnet(stcb, addr);
5578                         } else {
5579                                 /*
5580                                  * We increment here since
5581                                  * sctp_findassociation_ep_addr() wil do a
5582                                  * decrement if it finds the stcb as long as
5583                                  * the locked tcb (last argument) is NOT a
5584                                  * TCB.. aka NULL.
5585                                  */
5586                                 net = NULL;
5587                                 SCTP_INP_INCR_REF(inp);
5588                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5589                                     &net, NULL, NULL);
5590                                 if (stcb == NULL) {
5591                                         SCTP_INP_DECR_REF(inp);
5592                                 }
5593                         }
5594
5595                         if ((stcb != NULL) && (net != NULL)) {
5596                                 if ((net != stcb->asoc.primary_destination) &&
5597                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5598                                         /* Ok we need to set it */
5599                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5600                                                 if ((stcb->asoc.alternate) &&
5601                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5602                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5603                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5604                                                         stcb->asoc.alternate = NULL;
5605                                                 }
5606                                         }
5607                                 }
5608                         } else {
5609                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5610                                 error = EINVAL;
5611                         }
5612                         if (stcb != NULL) {
5613                                 SCTP_TCB_UNLOCK(stcb);
5614                         }
5615                         break;
5616                 }
5617         case SCTP_SET_DYNAMIC_PRIMARY:
5618                 {
5619                         union sctp_sockstore *ss;
5620
5621                         error = priv_check(curthread,
5622                             PRIV_NETINET_RESERVEDPORT);
5623                         if (error)
5624                                 break;
5625
5626                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5627                         /* SUPER USER CHECK? */
5628                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5629                         break;
5630                 }
5631         case SCTP_SET_PEER_PRIMARY_ADDR:
5632                 {
5633                         struct sctp_setpeerprim *sspp;
5634                         struct sockaddr *addr;
5635
5636 #if defined(INET) && defined(INET6)
5637                         struct sockaddr_in sin_store;
5638
5639 #endif
5640
5641                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5642                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5643                         if (stcb != NULL) {
5644                                 struct sctp_ifa *ifa;
5645
5646 #if defined(INET) && defined(INET6)
5647                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5648                                         struct sockaddr_in6 *sin6;
5649
5650                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5651                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5652                                                 in6_sin6_2_sin(&sin_store, sin6);
5653                                                 addr = (struct sockaddr *)&sin_store;
5654                                         } else {
5655                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5656                                         }
5657                                 } else {
5658                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5659                                 }
5660 #else
5661                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5662 #endif
5663                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5664                                 if (ifa == NULL) {
5665                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5666                                         error = EINVAL;
5667                                         goto out_of_it;
5668                                 }
5669                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5670                                         /*
5671                                          * Must validate the ifa found is in
5672                                          * our ep
5673                                          */
5674                                         struct sctp_laddr *laddr;
5675                                         int found = 0;
5676
5677                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5678                                                 if (laddr->ifa == NULL) {
5679                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5680                                                             __FUNCTION__);
5681                                                         continue;
5682                                                 }
5683                                                 if (laddr->ifa == ifa) {
5684                                                         found = 1;
5685                                                         break;
5686                                                 }
5687                                         }
5688                                         if (!found) {
5689                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5690                                                 error = EINVAL;
5691                                                 goto out_of_it;
5692                                         }
5693                                 } else {
5694                                         switch (addr->sa_family) {
5695 #ifdef INET
5696                                         case AF_INET:
5697                                                 {
5698                                                         struct sockaddr_in *sin;
5699
5700                                                         sin = (struct sockaddr_in *)addr;
5701                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5702                                                             &sin->sin_addr) != 0) {
5703                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5704                                                                 error = EINVAL;
5705                                                                 goto out_of_it;
5706                                                         }
5707                                                         break;
5708                                                 }
5709 #endif
5710 #ifdef INET6
5711                                         case AF_INET6:
5712                                                 {
5713                                                         struct sockaddr_in6 *sin6;
5714
5715                                                         sin6 = (struct sockaddr_in6 *)addr;
5716                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5717                                                             &sin6->sin6_addr) != 0) {
5718                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5719                                                                 error = EINVAL;
5720                                                                 goto out_of_it;
5721                                                         }
5722                                                         break;
5723                                                 }
5724 #endif
5725                                         default:
5726                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5727                                                 error = EINVAL;
5728                                                 goto out_of_it;
5729                                         }
5730                                 }
5731                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5732                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5733                                         error = EINVAL;
5734                                 }
5735                 out_of_it:
5736                                 SCTP_TCB_UNLOCK(stcb);
5737                         } else {
5738                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5739                                 error = EINVAL;
5740                         }
5741                         break;
5742                 }
5743         case SCTP_BINDX_ADD_ADDR:
5744                 {
5745                         struct sctp_getaddresses *addrs;
5746                         struct thread *td;
5747
5748                         td = (struct thread *)p;
5749                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5750                             optsize);
5751 #ifdef INET
5752                         if (addrs->addr->sa_family == AF_INET) {
5753                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5754                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5755                                         error = EINVAL;
5756                                         break;
5757                                 }
5758                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5759                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5760                                         break;
5761                                 }
5762                         } else
5763 #endif
5764 #ifdef INET6
5765                         if (addrs->addr->sa_family == AF_INET6) {
5766                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5767                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5768                                         error = EINVAL;
5769                                         break;
5770                                 }
5771                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5772                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5773                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5774                                         break;
5775                                 }
5776                         } else
5777 #endif
5778                         {
5779                                 error = EAFNOSUPPORT;
5780                                 break;
5781                         }
5782                         sctp_bindx_add_address(so, inp, addrs->addr,
5783                             addrs->sget_assoc_id, vrf_id,
5784                             &error, p);
5785                         break;
5786                 }
5787         case SCTP_BINDX_REM_ADDR:
5788                 {
5789                         struct sctp_getaddresses *addrs;
5790                         struct thread *td;
5791
5792                         td = (struct thread *)p;
5793
5794                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5795 #ifdef INET
5796                         if (addrs->addr->sa_family == AF_INET) {
5797                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5798                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5799                                         error = EINVAL;
5800                                         break;
5801                                 }
5802                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5803                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5804                                         break;
5805                                 }
5806                         } else
5807 #endif
5808 #ifdef INET6
5809                         if (addrs->addr->sa_family == AF_INET6) {
5810                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5811                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5812                                         error = EINVAL;
5813                                         break;
5814                                 }
5815                                 if (td != NULL &&
5816                                     (error = prison_local_ip6(td->td_ucred,
5817                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5818                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5819                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5820                                         break;
5821                                 }
5822                         } else
5823 #endif
5824                         {
5825                                 error = EAFNOSUPPORT;
5826                                 break;
5827                         }
5828                         sctp_bindx_delete_address(inp, addrs->addr,
5829                             addrs->sget_assoc_id, vrf_id,
5830                             &error);
5831                         break;
5832                 }
5833         case SCTP_EVENT:
5834                 {
5835                         struct sctp_event *event;
5836                         uint32_t event_type;
5837
5838                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5839                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5840                         switch (event->se_type) {
5841                         case SCTP_ASSOC_CHANGE:
5842                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5843                                 break;
5844                         case SCTP_PEER_ADDR_CHANGE:
5845                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5846                                 break;
5847                         case SCTP_REMOTE_ERROR:
5848                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5849                                 break;
5850                         case SCTP_SEND_FAILED:
5851                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5852                                 break;
5853                         case SCTP_SHUTDOWN_EVENT:
5854                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5855                                 break;
5856                         case SCTP_ADAPTATION_INDICATION:
5857                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5858                                 break;
5859                         case SCTP_PARTIAL_DELIVERY_EVENT:
5860                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5861                                 break;
5862                         case SCTP_AUTHENTICATION_EVENT:
5863                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5864                                 break;
5865                         case SCTP_STREAM_RESET_EVENT:
5866                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5867                                 break;
5868                         case SCTP_SENDER_DRY_EVENT:
5869                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5870                                 break;
5871                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5872                                 event_type = 0;
5873                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5874                                 error = ENOTSUP;
5875                                 break;
5876                         case SCTP_ASSOC_RESET_EVENT:
5877                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
5878                                 break;
5879                         case SCTP_STREAM_CHANGE_EVENT:
5880                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
5881                                 break;
5882                         case SCTP_SEND_FAILED_EVENT:
5883                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
5884                                 break;
5885                         default:
5886                                 event_type = 0;
5887                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5888                                 error = EINVAL;
5889                                 break;
5890                         }
5891                         if (event_type > 0) {
5892                                 if (stcb) {
5893                                         if (event->se_on) {
5894                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5895                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5896                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5897                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5898                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5899                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5900                                                         }
5901                                                 }
5902                                         } else {
5903                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5904                                         }
5905                                         SCTP_TCB_UNLOCK(stcb);
5906                                 } else {
5907                                         /*
5908                                          * We don't want to send up a storm
5909                                          * of events, so return an error for
5910                                          * sender dry events
5911                                          */
5912                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5913                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5914                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5915                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5916                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5917                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5918                                                 error = ENOTSUP;
5919                                                 break;
5920                                         }
5921                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5922                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5923                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5924                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5925                                                 SCTP_INP_WLOCK(inp);
5926                                                 if (event->se_on) {
5927                                                         sctp_feature_on(inp, event_type);
5928                                                 } else {
5929                                                         sctp_feature_off(inp, event_type);
5930                                                 }
5931                                                 SCTP_INP_WUNLOCK(inp);
5932                                         }
5933                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5934                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5935                                                 SCTP_INP_RLOCK(inp);
5936                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5937                                                         SCTP_TCB_LOCK(stcb);
5938                                                         if (event->se_on) {
5939                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5940                                                         } else {
5941                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5942                                                         }
5943                                                         SCTP_TCB_UNLOCK(stcb);
5944                                                 }
5945                                                 SCTP_INP_RUNLOCK(inp);
5946                                         }
5947                                 }
5948                         }
5949                         break;
5950                 }
5951         case SCTP_RECVRCVINFO:
5952                 {
5953                         int *onoff;
5954
5955                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5956                         SCTP_INP_WLOCK(inp);
5957                         if (*onoff != 0) {
5958                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5959                         } else {
5960                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5961                         }
5962                         SCTP_INP_WUNLOCK(inp);
5963                         break;
5964                 }
5965         case SCTP_RECVNXTINFO:
5966                 {
5967                         int *onoff;
5968
5969                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5970                         SCTP_INP_WLOCK(inp);
5971                         if (*onoff != 0) {
5972                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5973                         } else {
5974                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5975                         }
5976                         SCTP_INP_WUNLOCK(inp);
5977                         break;
5978                 }
5979         case SCTP_DEFAULT_SNDINFO:
5980                 {
5981                         struct sctp_sndinfo *info;
5982                         uint16_t policy;
5983
5984                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5985                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5986
5987                         if (stcb) {
5988                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5989                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5990                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5991                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5992                                         stcb->asoc.def_send.sinfo_flags |= policy;
5993                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5994                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5995                                 } else {
5996                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5997                                         error = EINVAL;
5998                                 }
5999                                 SCTP_TCB_UNLOCK(stcb);
6000                         } else {
6001                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6002                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6003                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6004                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6005                                         SCTP_INP_WLOCK(inp);
6006                                         inp->def_send.sinfo_stream = info->snd_sid;
6007                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6008                                         inp->def_send.sinfo_flags = info->snd_flags;
6009                                         inp->def_send.sinfo_flags |= policy;
6010                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6011                                         inp->def_send.sinfo_context = info->snd_context;
6012                                         SCTP_INP_WUNLOCK(inp);
6013                                 }
6014                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6015                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6016                                         SCTP_INP_RLOCK(inp);
6017                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6018                                                 SCTP_TCB_LOCK(stcb);
6019                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6020                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6021                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6022                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6023                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6024                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6025                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6026                                                 }
6027                                                 SCTP_TCB_UNLOCK(stcb);
6028                                         }
6029                                         SCTP_INP_RUNLOCK(inp);
6030                                 }
6031                         }
6032                         break;
6033                 }
6034         case SCTP_DEFAULT_PRINFO:
6035                 {
6036                         struct sctp_default_prinfo *info;
6037
6038                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6039                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6040
6041                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6042                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6043                                 error = EINVAL;
6044                                 break;
6045                         }
6046                         if (stcb) {
6047                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6048                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6049                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6050                                 SCTP_TCB_UNLOCK(stcb);
6051                         } else {
6052                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6053                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6054                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6055                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6056                                         SCTP_INP_WLOCK(inp);
6057                                         inp->def_send.sinfo_flags &= 0xfff0;
6058                                         inp->def_send.sinfo_flags |= info->pr_policy;
6059                                         inp->def_send.sinfo_timetolive = info->pr_value;
6060                                         SCTP_INP_WUNLOCK(inp);
6061                                 }
6062                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6063                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6064                                         SCTP_INP_RLOCK(inp);
6065                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6066                                                 SCTP_TCB_LOCK(stcb);
6067                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6068                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6069                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6070                                                 SCTP_TCB_UNLOCK(stcb);
6071                                         }
6072                                         SCTP_INP_RUNLOCK(inp);
6073                                 }
6074                         }
6075                         break;
6076                 }
6077         case SCTP_PEER_ADDR_THLDS:
6078                 /* Applies to the specific association */
6079                 {
6080                         struct sctp_paddrthlds *thlds;
6081                         struct sctp_nets *net;
6082                         struct sockaddr *addr;
6083
6084 #if defined(INET) && defined(INET6)
6085                         struct sockaddr_in sin_store;
6086
6087 #endif
6088
6089                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6090                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6091
6092 #if defined(INET) && defined(INET6)
6093                         if (thlds->spt_address.ss_family == AF_INET6) {
6094                                 struct sockaddr_in6 *sin6;
6095
6096                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6097                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6098                                         in6_sin6_2_sin(&sin_store, sin6);
6099                                         addr = (struct sockaddr *)&sin_store;
6100                                 } else {
6101                                         addr = (struct sockaddr *)&thlds->spt_address;
6102                                 }
6103                         } else {
6104                                 addr = (struct sockaddr *)&thlds->spt_address;
6105                         }
6106 #else
6107                         addr = (struct sockaddr *)&thlds->spt_address;
6108 #endif
6109                         if (stcb != NULL) {
6110                                 net = sctp_findnet(stcb, addr);
6111                         } else {
6112                                 /*
6113                                  * We increment here since
6114                                  * sctp_findassociation_ep_addr() wil do a
6115                                  * decrement if it finds the stcb as long as
6116                                  * the locked tcb (last argument) is NOT a
6117                                  * TCB.. aka NULL.
6118                                  */
6119                                 net = NULL;
6120                                 SCTP_INP_INCR_REF(inp);
6121                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6122                                     &net, NULL, NULL);
6123                                 if (stcb == NULL) {
6124                                         SCTP_INP_DECR_REF(inp);
6125                                 }
6126                         }
6127                         if ((stcb != NULL) && (net == NULL)) {
6128 #ifdef INET
6129                                 if (addr->sa_family == AF_INET) {
6130
6131                                         struct sockaddr_in *sin;
6132
6133                                         sin = (struct sockaddr_in *)addr;
6134                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6135                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6136                                                 SCTP_TCB_UNLOCK(stcb);
6137                                                 error = EINVAL;
6138                                                 break;
6139                                         }
6140                                 } else
6141 #endif
6142 #ifdef INET6
6143                                 if (addr->sa_family == AF_INET6) {
6144                                         struct sockaddr_in6 *sin6;
6145
6146                                         sin6 = (struct sockaddr_in6 *)addr;
6147                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6148                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6149                                                 SCTP_TCB_UNLOCK(stcb);
6150                                                 error = EINVAL;
6151                                                 break;
6152                                         }
6153                                 } else
6154 #endif
6155                                 {
6156                                         error = EAFNOSUPPORT;
6157                                         SCTP_TCB_UNLOCK(stcb);
6158                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6159                                         break;
6160                                 }
6161                         }
6162                         if (stcb != NULL) {
6163                                 if (net != NULL) {
6164                                         if (net->dest_state & SCTP_ADDR_PF) {
6165                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
6166                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
6167                                                         net->dest_state &= ~SCTP_ADDR_PF;
6168                                                 }
6169                                         } else {
6170                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
6171                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
6172                                                         net->dest_state |= SCTP_ADDR_PF;
6173                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6174                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
6175                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6176                                                 }
6177                                         }
6178                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6179                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
6180                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6181                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6182                                                 }
6183                                         } else {
6184                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
6185                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6186                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6187                                                 }
6188                                         }
6189                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6190                                         net->pf_threshold = thlds->spt_pathpfthld;
6191                                 } else {
6192                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6193                                                 if (net->dest_state & SCTP_ADDR_PF) {
6194                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
6195                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
6196                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6197                                                         }
6198                                                 } else {
6199                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
6200                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
6201                                                                 net->dest_state |= SCTP_ADDR_PF;
6202                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6203                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
6204                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6205                                                         }
6206                                                 }
6207                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6208                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
6209                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6210                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6211                                                         }
6212                                                 } else {
6213                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
6214                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6215                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6216                                                         }
6217                                                 }
6218                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6219                                                 net->pf_threshold = thlds->spt_pathpfthld;
6220                                         }
6221                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6222                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6223                                 }
6224                         } else {
6225                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6226                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6227                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6228                                         SCTP_INP_WLOCK(inp);
6229                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6230                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6231                                         SCTP_INP_WUNLOCK(inp);
6232                                 } else {
6233                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6234                                         error = EINVAL;
6235                                 }
6236                         }
6237                         break;
6238                 }
6239         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6240                 {
6241                         struct sctp_udpencaps *encaps;
6242                         struct sctp_nets *net;
6243                         struct sockaddr *addr;
6244
6245 #if defined(INET) && defined(INET6)
6246                         struct sockaddr_in sin_store;
6247
6248 #endif
6249
6250                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6251                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6252
6253 #if defined(INET) && defined(INET6)
6254                         if (encaps->sue_address.ss_family == AF_INET6) {
6255                                 struct sockaddr_in6 *sin6;
6256
6257                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6258                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6259                                         in6_sin6_2_sin(&sin_store, sin6);
6260                                         addr = (struct sockaddr *)&sin_store;
6261                                 } else {
6262                                         addr = (struct sockaddr *)&encaps->sue_address;
6263                                 }
6264                         } else {
6265                                 addr = (struct sockaddr *)&encaps->sue_address;
6266                         }
6267 #else
6268                         addr = (struct sockaddr *)&encaps->sue_address;
6269 #endif
6270                         if (stcb != NULL) {
6271                                 net = sctp_findnet(stcb, addr);
6272                         } else {
6273                                 /*
6274                                  * We increment here since
6275                                  * sctp_findassociation_ep_addr() wil do a
6276                                  * decrement if it finds the stcb as long as
6277                                  * the locked tcb (last argument) is NOT a
6278                                  * TCB.. aka NULL.
6279                                  */
6280                                 net = NULL;
6281                                 SCTP_INP_INCR_REF(inp);
6282                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6283                                 if (stcb == NULL) {
6284                                         SCTP_INP_DECR_REF(inp);
6285                                 }
6286                         }
6287                         if ((stcb != NULL) && (net == NULL)) {
6288 #ifdef INET
6289                                 if (addr->sa_family == AF_INET) {
6290
6291                                         struct sockaddr_in *sin;
6292
6293                                         sin = (struct sockaddr_in *)addr;
6294                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6295                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6296                                                 SCTP_TCB_UNLOCK(stcb);
6297                                                 error = EINVAL;
6298                                                 break;
6299                                         }
6300                                 } else
6301 #endif
6302 #ifdef INET6
6303                                 if (addr->sa_family == AF_INET6) {
6304                                         struct sockaddr_in6 *sin6;
6305
6306                                         sin6 = (struct sockaddr_in6 *)addr;
6307                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6308                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6309                                                 SCTP_TCB_UNLOCK(stcb);
6310                                                 error = EINVAL;
6311                                                 break;
6312                                         }
6313                                 } else
6314 #endif
6315                                 {
6316                                         error = EAFNOSUPPORT;
6317                                         SCTP_TCB_UNLOCK(stcb);
6318                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6319                                         break;
6320                                 }
6321                         }
6322                         if (stcb != NULL) {
6323                                 if (net != NULL) {
6324                                         net->port = encaps->sue_port;
6325                                 } else {
6326                                         stcb->asoc.port = encaps->sue_port;
6327                                 }
6328                                 SCTP_TCB_UNLOCK(stcb);
6329                         } else {
6330                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6331                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6332                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6333                                         SCTP_INP_WLOCK(inp);
6334                                         inp->sctp_ep.port = encaps->sue_port;
6335                                         SCTP_INP_WUNLOCK(inp);
6336                                 } else {
6337                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6338                                         error = EINVAL;
6339                                 }
6340                         }
6341                         break;
6342                 }
6343         case SCTP_ECN_SUPPORTED:
6344                 {
6345                         struct sctp_assoc_value *av;
6346
6347                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6348                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6349
6350                         if (stcb) {
6351                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6352                                 error = EINVAL;
6353                                 SCTP_TCB_UNLOCK(stcb);
6354                         } else {
6355                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6356                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6357                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6358                                         SCTP_INP_WLOCK(inp);
6359                                         if (av->assoc_value == 0) {
6360                                                 inp->ecn_supported = 0;
6361                                         } else {
6362                                                 inp->ecn_supported = 1;
6363                                         }
6364                                         SCTP_INP_WUNLOCK(inp);
6365                                 } else {
6366                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6367                                         error = EINVAL;
6368                                 }
6369                         }
6370                         break;
6371                 }
6372         case SCTP_PR_SUPPORTED:
6373                 {
6374                         struct sctp_assoc_value *av;
6375
6376                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6377                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6378
6379                         if (stcb) {
6380                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6381                                 error = EINVAL;
6382                                 SCTP_TCB_UNLOCK(stcb);
6383                         } else {
6384                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6385                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6386                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6387                                         SCTP_INP_WLOCK(inp);
6388                                         if (av->assoc_value == 0) {
6389                                                 inp->prsctp_supported = 0;
6390                                         } else {
6391                                                 inp->prsctp_supported = 1;
6392                                         }
6393                                         SCTP_INP_WUNLOCK(inp);
6394                                 } else {
6395                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6396                                         error = EINVAL;
6397                                 }
6398                         }
6399                         break;
6400                 }
6401         case SCTP_AUTH_SUPPORTED:
6402                 {
6403                         struct sctp_assoc_value *av;
6404
6405                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6406                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6407
6408                         if (stcb) {
6409                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6410                                 error = EINVAL;
6411                                 SCTP_TCB_UNLOCK(stcb);
6412                         } else {
6413                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6414                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6415                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6416                                         if ((av->assoc_value == 0) &&
6417                                             (inp->asconf_supported == 1)) {
6418                                                 /*
6419                                                  * AUTH is required for
6420                                                  * ASCONF
6421                                                  */
6422                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6423                                                 error = EINVAL;
6424                                         } else {
6425                                                 SCTP_INP_WLOCK(inp);
6426                                                 if (av->assoc_value == 0) {
6427                                                         inp->auth_supported = 0;
6428                                                 } else {
6429                                                         inp->auth_supported = 1;
6430                                                 }
6431                                                 SCTP_INP_WUNLOCK(inp);
6432                                         }
6433                                 } else {
6434                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6435                                         error = EINVAL;
6436                                 }
6437                         }
6438                         break;
6439                 }
6440         case SCTP_ASCONF_SUPPORTED:
6441                 {
6442                         struct sctp_assoc_value *av;
6443
6444                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6445                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6446
6447                         if (stcb) {
6448                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6449                                 error = EINVAL;
6450                                 SCTP_TCB_UNLOCK(stcb);
6451                         } else {
6452                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6453                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6454                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6455                                         if ((av->assoc_value != 0) &&
6456                                             (inp->auth_supported == 0)) {
6457                                                 /*
6458                                                  * AUTH is required for
6459                                                  * ASCONF
6460                                                  */
6461                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6462                                                 error = EINVAL;
6463                                         } else {
6464                                                 SCTP_INP_WLOCK(inp);
6465                                                 if (av->assoc_value == 0) {
6466                                                         inp->asconf_supported = 0;
6467                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6468                                                             inp->sctp_ep.local_auth_chunks);
6469                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6470                                                             inp->sctp_ep.local_auth_chunks);
6471                                                 } else {
6472                                                         inp->asconf_supported = 1;
6473                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6474                                                             inp->sctp_ep.local_auth_chunks);
6475                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6476                                                             inp->sctp_ep.local_auth_chunks);
6477                                                 }
6478                                                 SCTP_INP_WUNLOCK(inp);
6479                                         }
6480                                 } else {
6481                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6482                                         error = EINVAL;
6483                                 }
6484                         }
6485                         break;
6486                 }
6487         case SCTP_RECONFIG_SUPPORTED:
6488                 {
6489                         struct sctp_assoc_value *av;
6490
6491                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6492                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6493
6494                         if (stcb) {
6495                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6496                                 error = EINVAL;
6497                                 SCTP_TCB_UNLOCK(stcb);
6498                         } else {
6499                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6500                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6501                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6502                                         SCTP_INP_WLOCK(inp);
6503                                         if (av->assoc_value == 0) {
6504                                                 inp->reconfig_supported = 0;
6505                                         } else {
6506                                                 inp->reconfig_supported = 1;
6507                                         }
6508                                         SCTP_INP_WUNLOCK(inp);
6509                                 } else {
6510                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6511                                         error = EINVAL;
6512                                 }
6513                         }
6514                         break;
6515                 }
6516         case SCTP_NRSACK_SUPPORTED:
6517                 {
6518                         struct sctp_assoc_value *av;
6519
6520                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6521                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6522
6523                         if (stcb) {
6524                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6525                                 error = EINVAL;
6526                                 SCTP_TCB_UNLOCK(stcb);
6527                         } else {
6528                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6529                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6530                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6531                                         SCTP_INP_WLOCK(inp);
6532                                         if (av->assoc_value == 0) {
6533                                                 inp->nrsack_supported = 0;
6534                                         } else {
6535                                                 inp->nrsack_supported = 1;
6536                                         }
6537                                         SCTP_INP_WUNLOCK(inp);
6538                                 } else {
6539                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6540                                         error = EINVAL;
6541                                 }
6542                         }
6543                         break;
6544                 }
6545         case SCTP_PKTDROP_SUPPORTED:
6546                 {
6547                         struct sctp_assoc_value *av;
6548
6549                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6550                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6551
6552                         if (stcb) {
6553                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6554                                 error = EINVAL;
6555                                 SCTP_TCB_UNLOCK(stcb);
6556                         } else {
6557                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6558                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6559                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6560                                         SCTP_INP_WLOCK(inp);
6561                                         if (av->assoc_value == 0) {
6562                                                 inp->pktdrop_supported = 0;
6563                                         } else {
6564                                                 inp->pktdrop_supported = 1;
6565                                         }
6566                                         SCTP_INP_WUNLOCK(inp);
6567                                 } else {
6568                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6569                                         error = EINVAL;
6570                                 }
6571                         }
6572                         break;
6573                 }
6574         default:
6575                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6576                 error = ENOPROTOOPT;
6577                 break;
6578         }                       /* end switch (opt) */
6579         return (error);
6580 }
6581
6582 int
6583 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6584 {
6585         void *optval = NULL;
6586         size_t optsize = 0;
6587         void *p;
6588         int error = 0;
6589
6590         if (sopt->sopt_level != IPPROTO_SCTP) {
6591                 /* wrong proto level... send back up to IP */
6592 #ifdef INET6
6593                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6594                         error = ip6_ctloutput(so, sopt);
6595 #endif                          /* INET6 */
6596 #if defined(INET) && defined(INET6)
6597                 else
6598 #endif
6599 #ifdef INET
6600                         error = ip_ctloutput(so, sopt);
6601 #endif
6602                 return (error);
6603         }
6604         optsize = sopt->sopt_valsize;
6605         if (optsize) {
6606                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6607                 if (optval == NULL) {
6608                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6609                         return (ENOBUFS);
6610                 }
6611                 error = sooptcopyin(sopt, optval, optsize, optsize);
6612                 if (error) {
6613                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6614                         goto out;
6615                 }
6616         }
6617         p = (void *)sopt->sopt_td;
6618         if (sopt->sopt_dir == SOPT_SET) {
6619                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6620         } else if (sopt->sopt_dir == SOPT_GET) {
6621                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6622         } else {
6623                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6624                 error = EINVAL;
6625         }
6626         if ((error == 0) && (optval != NULL)) {
6627                 error = sooptcopyout(sopt, optval, optsize);
6628                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6629         } else if (optval != NULL) {
6630                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6631         }
6632 out:
6633         return (error);
6634 }
6635
6636 #ifdef INET
6637 static int
6638 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6639 {
6640         int error = 0;
6641         int create_lock_on = 0;
6642         uint32_t vrf_id;
6643         struct sctp_inpcb *inp;
6644         struct sctp_tcb *stcb = NULL;
6645
6646         inp = (struct sctp_inpcb *)so->so_pcb;
6647         if (inp == NULL) {
6648                 /* I made the same as TCP since we are not setup? */
6649                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6650                 return (ECONNRESET);
6651         }
6652         if (addr == NULL) {
6653                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6654                 return EINVAL;
6655         }
6656         switch (addr->sa_family) {
6657 #ifdef INET6
6658         case AF_INET6:
6659                 {
6660                         struct sockaddr_in6 *sin6p;
6661
6662                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6663                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6664                                 return (EINVAL);
6665                         }
6666                         sin6p = (struct sockaddr_in6 *)addr;
6667                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6668                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6669                                 return (error);
6670                         }
6671                         break;
6672                 }
6673 #endif
6674 #ifdef INET
6675         case AF_INET:
6676                 {
6677                         struct sockaddr_in *sinp;
6678
6679                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6680                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6681                                 return (EINVAL);
6682                         }
6683                         sinp = (struct sockaddr_in *)addr;
6684                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6685                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6686                                 return (error);
6687                         }
6688                         break;
6689                 }
6690 #endif
6691         default:
6692                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6693                 return (EAFNOSUPPORT);
6694         }
6695         SCTP_INP_INCR_REF(inp);
6696         SCTP_ASOC_CREATE_LOCK(inp);
6697         create_lock_on = 1;
6698
6699
6700         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6701             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6702                 /* Should I really unlock ? */
6703                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6704                 error = EFAULT;
6705                 goto out_now;
6706         }
6707 #ifdef INET6
6708         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6709             (addr->sa_family == AF_INET6)) {
6710                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6711                 error = EINVAL;
6712                 goto out_now;
6713         }
6714 #endif
6715         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6716             SCTP_PCB_FLAGS_UNBOUND) {
6717                 /* Bind a ephemeral port */
6718                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6719                 if (error) {
6720                         goto out_now;
6721                 }
6722         }
6723         /* Now do we connect? */
6724         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6725             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6726                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6727                 error = EINVAL;
6728                 goto out_now;
6729         }
6730         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6731             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6732                 /* We are already connected AND the TCP model */
6733                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6734                 error = EADDRINUSE;
6735                 goto out_now;
6736         }
6737         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6738                 SCTP_INP_RLOCK(inp);
6739                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6740                 SCTP_INP_RUNLOCK(inp);
6741         } else {
6742                 /*
6743                  * We increment here since sctp_findassociation_ep_addr()
6744                  * will do a decrement if it finds the stcb as long as the
6745                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6746                  */
6747                 SCTP_INP_INCR_REF(inp);
6748                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6749                 if (stcb == NULL) {
6750                         SCTP_INP_DECR_REF(inp);
6751                 } else {
6752                         SCTP_TCB_UNLOCK(stcb);
6753                 }
6754         }
6755         if (stcb != NULL) {
6756                 /* Already have or am bring up an association */
6757                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6758                 error = EALREADY;
6759                 goto out_now;
6760         }
6761         vrf_id = inp->def_vrf_id;
6762         /* We are GOOD to go */
6763         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
6764         if (stcb == NULL) {
6765                 /* Gak! no memory */
6766                 goto out_now;
6767         }
6768         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6769                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6770                 /* Set the connected flag so we can queue data */
6771                 soisconnecting(so);
6772         }
6773         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6774         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6775
6776         /* initialize authentication parameters for the assoc */
6777         sctp_initialize_auth_params(inp, stcb);
6778
6779         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6780         SCTP_TCB_UNLOCK(stcb);
6781 out_now:
6782         if (create_lock_on) {
6783                 SCTP_ASOC_CREATE_UNLOCK(inp);
6784         }
6785         SCTP_INP_DECR_REF(inp);
6786         return (error);
6787 }
6788
6789 #endif
6790
6791 int
6792 sctp_listen(struct socket *so, int backlog, struct thread *p)
6793 {
6794         /*
6795          * Note this module depends on the protocol processing being called
6796          * AFTER any socket level flags and backlog are applied to the
6797          * socket. The traditional way that the socket flags are applied is
6798          * AFTER protocol processing. We have made a change to the
6799          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6800          * place if the socket API for SCTP is to work properly.
6801          */
6802
6803         int error = 0;
6804         struct sctp_inpcb *inp;
6805
6806         inp = (struct sctp_inpcb *)so->so_pcb;
6807         if (inp == NULL) {
6808                 /* I made the same as TCP since we are not setup? */
6809                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6810                 return (ECONNRESET);
6811         }
6812         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6813                 /* See if we have a listener */
6814                 struct sctp_inpcb *tinp;
6815                 union sctp_sockstore store;
6816
6817                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
6818                         /* not bound all */
6819                         struct sctp_laddr *laddr;
6820
6821                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6822                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6823                                 switch (store.sa.sa_family) {
6824 #ifdef INET
6825                                 case AF_INET:
6826                                         store.sin.sin_port = inp->sctp_lport;
6827                                         break;
6828 #endif
6829 #ifdef INET6
6830                                 case AF_INET6:
6831                                         store.sin6.sin6_port = inp->sctp_lport;
6832                                         break;
6833 #endif
6834                                 default:
6835                                         break;
6836                                 }
6837                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6838                                 if (tinp && (tinp != inp) &&
6839                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6840                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6841                                     (tinp->sctp_socket->so_qlimit)) {
6842                                         /*
6843                                          * we have a listener already and
6844                                          * its not this inp.
6845                                          */
6846                                         SCTP_INP_DECR_REF(tinp);
6847                                         return (EADDRINUSE);
6848                                 } else if (tinp) {
6849                                         SCTP_INP_DECR_REF(tinp);
6850                                 }
6851                         }
6852                 } else {
6853                         /* Setup a local addr bound all */
6854                         memset(&store, 0, sizeof(store));
6855 #ifdef INET6
6856                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6857                                 store.sa.sa_family = AF_INET6;
6858                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6859                         }
6860 #endif
6861 #ifdef INET
6862                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6863                                 store.sa.sa_family = AF_INET;
6864                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6865                         }
6866 #endif
6867                         switch (store.sa.sa_family) {
6868 #ifdef INET
6869                         case AF_INET:
6870                                 store.sin.sin_port = inp->sctp_lport;
6871                                 break;
6872 #endif
6873 #ifdef INET6
6874                         case AF_INET6:
6875                                 store.sin6.sin6_port = inp->sctp_lport;
6876                                 break;
6877 #endif
6878                         default:
6879                                 break;
6880                         }
6881                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
6882                         if (tinp && (tinp != inp) &&
6883                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6884                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6885                             (tinp->sctp_socket->so_qlimit)) {
6886                                 /*
6887                                  * we have a listener already and its not
6888                                  * this inp.
6889                                  */
6890                                 SCTP_INP_DECR_REF(tinp);
6891                                 return (EADDRINUSE);
6892                         } else if (tinp) {
6893                                 SCTP_INP_DECR_REF(inp);
6894                         }
6895                 }
6896         }
6897         SCTP_INP_RLOCK(inp);
6898 #ifdef SCTP_LOCK_LOGGING
6899         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6900                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6901         }
6902 #endif
6903         SOCK_LOCK(so);
6904         error = solisten_proto_check(so);
6905         if (error) {
6906                 SOCK_UNLOCK(so);
6907                 SCTP_INP_RUNLOCK(inp);
6908                 return (error);
6909         }
6910         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6911             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6912                 /*
6913                  * The unlucky case - We are in the tcp pool with this guy.
6914                  * - Someone else is in the main inp slot. - We must move
6915                  * this guy (the listener) to the main slot - We must then
6916                  * move the guy that was listener to the TCP Pool.
6917                  */
6918                 if (sctp_swap_inpcb_for_listen(inp)) {
6919                         goto in_use;
6920                 }
6921         }
6922         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6923             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6924                 /* We are already connected AND the TCP model */
6925 in_use:
6926                 SCTP_INP_RUNLOCK(inp);
6927                 SOCK_UNLOCK(so);
6928                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6929                 return (EADDRINUSE);
6930         }
6931         SCTP_INP_RUNLOCK(inp);
6932         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6933                 /* We must do a bind. */
6934                 SOCK_UNLOCK(so);
6935                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6936                         /* bind error, probably perm */
6937                         return (error);
6938                 }
6939                 SOCK_LOCK(so);
6940         }
6941         /* It appears for 7.0 and on, we must always call this. */
6942         solisten_proto(so, backlog);
6943         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6944                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6945                 so->so_options &= ~SO_ACCEPTCONN;
6946         }
6947         if (backlog == 0) {
6948                 /* turning off listen */
6949                 so->so_options &= ~SO_ACCEPTCONN;
6950         }
6951         SOCK_UNLOCK(so);
6952         return (error);
6953 }
6954
6955 static int sctp_defered_wakeup_cnt = 0;
6956
6957 int
6958 sctp_accept(struct socket *so, struct sockaddr **addr)
6959 {
6960         struct sctp_tcb *stcb;
6961         struct sctp_inpcb *inp;
6962         union sctp_sockstore store;
6963
6964 #ifdef INET6
6965         int error;
6966
6967 #endif
6968         inp = (struct sctp_inpcb *)so->so_pcb;
6969
6970         if (inp == NULL) {
6971                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6972                 return (ECONNRESET);
6973         }
6974         SCTP_INP_RLOCK(inp);
6975         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6976                 SCTP_INP_RUNLOCK(inp);
6977                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6978                 return (EOPNOTSUPP);
6979         }
6980         if (so->so_state & SS_ISDISCONNECTED) {
6981                 SCTP_INP_RUNLOCK(inp);
6982                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6983                 return (ECONNABORTED);
6984         }
6985         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6986         if (stcb == NULL) {
6987                 SCTP_INP_RUNLOCK(inp);
6988                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6989                 return (ECONNRESET);
6990         }
6991         SCTP_TCB_LOCK(stcb);
6992         SCTP_INP_RUNLOCK(inp);
6993         store = stcb->asoc.primary_destination->ro._l_addr;
6994         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6995         SCTP_TCB_UNLOCK(stcb);
6996         switch (store.sa.sa_family) {
6997 #ifdef INET
6998         case AF_INET:
6999                 {
7000                         struct sockaddr_in *sin;
7001
7002                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7003                         if (sin == NULL)
7004                                 return (ENOMEM);
7005                         sin->sin_family = AF_INET;
7006                         sin->sin_len = sizeof(*sin);
7007                         sin->sin_port = store.sin.sin_port;
7008                         sin->sin_addr = store.sin.sin_addr;
7009                         *addr = (struct sockaddr *)sin;
7010                         break;
7011                 }
7012 #endif
7013 #ifdef INET6
7014         case AF_INET6:
7015                 {
7016                         struct sockaddr_in6 *sin6;
7017
7018                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7019                         if (sin6 == NULL)
7020                                 return (ENOMEM);
7021                         sin6->sin6_family = AF_INET6;
7022                         sin6->sin6_len = sizeof(*sin6);
7023                         sin6->sin6_port = store.sin6.sin6_port;
7024                         sin6->sin6_addr = store.sin6.sin6_addr;
7025                         if ((error = sa6_recoverscope(sin6)) != 0) {
7026                                 SCTP_FREE_SONAME(sin6);
7027                                 return (error);
7028                         }
7029                         *addr = (struct sockaddr *)sin6;
7030                         break;
7031                 }
7032 #endif
7033         default:
7034                 /* TSNH */
7035                 break;
7036         }
7037         /* Wake any delayed sleep action */
7038         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7039                 SCTP_INP_WLOCK(inp);
7040                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7041                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7042                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7043                         SCTP_INP_WUNLOCK(inp);
7044                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7045                         if (sowriteable(inp->sctp_socket)) {
7046                                 sowwakeup_locked(inp->sctp_socket);
7047                         } else {
7048                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7049                         }
7050                         SCTP_INP_WLOCK(inp);
7051                 }
7052                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7053                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7054                         SCTP_INP_WUNLOCK(inp);
7055                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7056                         if (soreadable(inp->sctp_socket)) {
7057                                 sctp_defered_wakeup_cnt++;
7058                                 sorwakeup_locked(inp->sctp_socket);
7059                         } else {
7060                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7061                         }
7062                         SCTP_INP_WLOCK(inp);
7063                 }
7064                 SCTP_INP_WUNLOCK(inp);
7065         }
7066         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7067                 SCTP_TCB_LOCK(stcb);
7068                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
7069         }
7070         return (0);
7071 }
7072
7073 #ifdef INET
7074 int
7075 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7076 {
7077         struct sockaddr_in *sin;
7078         uint32_t vrf_id;
7079         struct sctp_inpcb *inp;
7080         struct sctp_ifa *sctp_ifa;
7081
7082         /*
7083          * Do the malloc first in case it blocks.
7084          */
7085         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7086         if (sin == NULL)
7087                 return (ENOMEM);
7088         sin->sin_family = AF_INET;
7089         sin->sin_len = sizeof(*sin);
7090         inp = (struct sctp_inpcb *)so->so_pcb;
7091         if (!inp) {
7092                 SCTP_FREE_SONAME(sin);
7093                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7094                 return (ECONNRESET);
7095         }
7096         SCTP_INP_RLOCK(inp);
7097         sin->sin_port = inp->sctp_lport;
7098         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7099                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7100                         struct sctp_tcb *stcb;
7101                         struct sockaddr_in *sin_a;
7102                         struct sctp_nets *net;
7103                         int fnd;
7104
7105                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7106                         if (stcb == NULL) {
7107                                 goto notConn;
7108                         }
7109                         fnd = 0;
7110                         sin_a = NULL;
7111                         SCTP_TCB_LOCK(stcb);
7112                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7113                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7114                                 if (sin_a == NULL)
7115                                         /* this will make coverity happy */
7116                                         continue;
7117
7118                                 if (sin_a->sin_family == AF_INET) {
7119                                         fnd = 1;
7120                                         break;
7121                                 }
7122                         }
7123                         if ((!fnd) || (sin_a == NULL)) {
7124                                 /* punt */
7125                                 SCTP_TCB_UNLOCK(stcb);
7126                                 goto notConn;
7127                         }
7128                         vrf_id = inp->def_vrf_id;
7129                         sctp_ifa = sctp_source_address_selection(inp,
7130                             stcb,
7131                             (sctp_route_t *) & net->ro,
7132                             net, 0, vrf_id);
7133                         if (sctp_ifa) {
7134                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7135                                 sctp_free_ifa(sctp_ifa);
7136                         }
7137                         SCTP_TCB_UNLOCK(stcb);
7138                 } else {
7139                         /* For the bound all case you get back 0 */
7140         notConn:
7141                         sin->sin_addr.s_addr = 0;
7142                 }
7143
7144         } else {
7145                 /* Take the first IPv4 address in the list */
7146                 struct sctp_laddr *laddr;
7147                 int fnd = 0;
7148
7149                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7150                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7151                                 struct sockaddr_in *sin_a;
7152
7153                                 sin_a = &laddr->ifa->address.sin;
7154                                 sin->sin_addr = sin_a->sin_addr;
7155                                 fnd = 1;
7156                                 break;
7157                         }
7158                 }
7159                 if (!fnd) {
7160                         SCTP_FREE_SONAME(sin);
7161                         SCTP_INP_RUNLOCK(inp);
7162                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7163                         return (ENOENT);
7164                 }
7165         }
7166         SCTP_INP_RUNLOCK(inp);
7167         (*addr) = (struct sockaddr *)sin;
7168         return (0);
7169 }
7170
7171 int
7172 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7173 {
7174         struct sockaddr_in *sin;
7175         int fnd;
7176         struct sockaddr_in *sin_a;
7177         struct sctp_inpcb *inp;
7178         struct sctp_tcb *stcb;
7179         struct sctp_nets *net;
7180
7181         /* Do the malloc first in case it blocks. */
7182         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7183         if (sin == NULL)
7184                 return (ENOMEM);
7185         sin->sin_family = AF_INET;
7186         sin->sin_len = sizeof(*sin);
7187
7188         inp = (struct sctp_inpcb *)so->so_pcb;
7189         if ((inp == NULL) ||
7190             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7191                 /* UDP type and listeners will drop out here */
7192                 SCTP_FREE_SONAME(sin);
7193                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7194                 return (ENOTCONN);
7195         }
7196         SCTP_INP_RLOCK(inp);
7197         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7198         if (stcb) {
7199                 SCTP_TCB_LOCK(stcb);
7200         }
7201         SCTP_INP_RUNLOCK(inp);
7202         if (stcb == NULL) {
7203                 SCTP_FREE_SONAME(sin);
7204                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7205                 return (ECONNRESET);
7206         }
7207         fnd = 0;
7208         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7209                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7210                 if (sin_a->sin_family == AF_INET) {
7211                         fnd = 1;
7212                         sin->sin_port = stcb->rport;
7213                         sin->sin_addr = sin_a->sin_addr;
7214                         break;
7215                 }
7216         }
7217         SCTP_TCB_UNLOCK(stcb);
7218         if (!fnd) {
7219                 /* No IPv4 address */
7220                 SCTP_FREE_SONAME(sin);
7221                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7222                 return (ENOENT);
7223         }
7224         (*addr) = (struct sockaddr *)sin;
7225         return (0);
7226 }
7227
7228 struct pr_usrreqs sctp_usrreqs = {
7229         .pru_abort = sctp_abort,
7230         .pru_accept = sctp_accept,
7231         .pru_attach = sctp_attach,
7232         .pru_bind = sctp_bind,
7233         .pru_connect = sctp_connect,
7234         .pru_control = in_control,
7235         .pru_close = sctp_close,
7236         .pru_detach = sctp_close,
7237         .pru_sopoll = sopoll_generic,
7238         .pru_flush = sctp_flush,
7239         .pru_disconnect = sctp_disconnect,
7240         .pru_listen = sctp_listen,
7241         .pru_peeraddr = sctp_peeraddr,
7242         .pru_send = sctp_sendm,
7243         .pru_shutdown = sctp_shutdown,
7244         .pru_sockaddr = sctp_ingetaddr,
7245         .pru_sosend = sctp_sosend,
7246         .pru_soreceive = sctp_soreceive
7247 };
7248
7249 #endif