sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2011, 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 /* $KAME: sctp_usrreq.c,v 1.48 2005/03/07 23:26:08 itojun Exp $  */
  34
  35 #include <sys/cdefs.h>
  36 __FBSDID("$FreeBSD$");
  37 #include <netinet/sctp_os.h>
  38 #include <sys/proc.h>
  39 #include <netinet/sctp_pcb.h>
  40 #include <netinet/sctp_header.h>
  41 #include <netinet/sctp_var.h>
  42 #if defined(INET6)
  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
  83         SCTP_BASE_VAR(first_time) = 0;
  84         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  85         sctp_pcb_init();
  86 #if defined(SCTP_PACKET_LOGGING)
  87         SCTP_BASE_VAR(packet_log_writers) = 0;
  88         SCTP_BASE_VAR(packet_log_end) = 0;
  89         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  90 #endif
  91
  92
  93 }
  94
  95 void
  96 sctp_finish(void)
  97 {
  98         sctp_pcb_finish();
  99 }
 100
 101
 102
 103 void
 104 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 105 {
 106         struct sctp_tmit_chunk *chk;
 107         uint16_t overhead;
 108
 109         /* Adjust that too */
 110         stcb->asoc.smallest_mtu = nxtsz;
 111         /* now off to subtract IP_DF flag if needed */
 112         overhead = IP_HDR_SIZE;
 113         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 114                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 115         }
 116         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 117                 if ((chk->send_size + overhead) > nxtsz) {
 118                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 119                 }
 120         }
 121         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 122                 if ((chk->send_size + overhead) > nxtsz) {
 123                         /*
 124                          * For this guy we also mark for immediate resend
 125                          * since we sent to big of chunk
 126                          */
 127                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 128                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 129                                 sctp_flight_size_decrease(chk);
 130                                 sctp_total_flight_decrease(stcb, chk);
 131                         }
 132                         if (chk->sent != SCTP_DATAGRAM_RESEND) {
 133                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 134                         }
 135                         chk->sent = SCTP_DATAGRAM_RESEND;
 136                         chk->rec.data.doing_fast_retransmit = 0;
 137                         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 138                                 sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 139                                     chk->whoTo->flight_size,
 140                                     chk->book_size,
 141                                     (uintptr_t) chk->whoTo,
 142                                     chk->rec.data.TSN_seq);
 143                         }
 144                         /* Clear any time so NO RTT is being done */
 145                         chk->do_rtt = 0;
 146                 }
 147         }
 148 }
 149
 150 #ifdef INET
 151 static void
 152 sctp_notify_mbuf(struct sctp_inpcb *inp,
 153     struct sctp_tcb *stcb,
 154     struct sctp_nets *net,
 155     struct ip *ip,
 156     struct sctphdr *sh)
 157 {
 158         struct icmp *icmph;
 159         int totsz, tmr_stopped = 0;
 160         uint16_t nxtsz;
 161
 162         /* protection */
 163         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 164             (ip == NULL) || (sh == NULL)) {
 165                 if (stcb != NULL) {
 166                         SCTP_TCB_UNLOCK(stcb);
 167                 }
 168                 return;
 169         }
 170         /* First job is to verify the vtag matches what I would send */
 171         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 172                 SCTP_TCB_UNLOCK(stcb);
 173                 return;
 174         }
 175         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 176             sizeof(struct ip)));
 177         if (icmph->icmp_type != ICMP_UNREACH) {
 178                 /* We only care about unreachable */
 179                 SCTP_TCB_UNLOCK(stcb);
 180                 return;
 181         }
 182         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 183                 /* not a unreachable message due to frag. */
 184                 SCTP_TCB_UNLOCK(stcb);
 185                 return;
 186         }
 187         totsz = ip->ip_len;
 188
 189         nxtsz = ntohs(icmph->icmp_nextmtu);
 190         if (nxtsz == 0) {
 191                 /*
 192                  * old type router that does not tell us what the next size
 193                  * mtu is. Rats we will have to guess (in a educated fashion
 194                  * of course)
 195                  */
 196                 nxtsz = sctp_get_prev_mtu(totsz);
 197         }
 198         /* Stop any PMTU timer */
 199         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 200                 tmr_stopped = 1;
 201                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 202                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 203         }
 204         /* Adjust destination size limit */
 205         if (net->mtu > nxtsz) {
 206                 net->mtu = nxtsz;
 207                 if (net->port) {
 208                         net->mtu -= sizeof(struct udphdr);
 209                 }
 210         }
 211         /* now what about the ep? */
 212         if (stcb->asoc.smallest_mtu > nxtsz) {
 213                 sctp_pathmtu_adjustment(stcb, nxtsz);
 214         }
 215         if (tmr_stopped)
 216                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 217
 218         SCTP_TCB_UNLOCK(stcb);
 219 }
 220
 221 #endif
 222
 223 void
 224 sctp_notify(struct sctp_inpcb *inp,
 225     struct ip *ip,
 226     struct sctphdr *sh,
 227     struct sockaddr *to,
 228     struct sctp_tcb *stcb,
 229     struct sctp_nets *net)
 230 {
 231 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 232         struct socket *so;
 233
 234 #endif
 235         /* protection */
 236         int reason;
 237         struct icmp *icmph;
 238
 239
 240         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 241             (sh == NULL) || (to == NULL)) {
 242                 if (stcb)
 243                         SCTP_TCB_UNLOCK(stcb);
 244                 return;
 245         }
 246         /* First job is to verify the vtag matches what I would send */
 247         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 248                 SCTP_TCB_UNLOCK(stcb);
 249                 return;
 250         }
 251         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 252             sizeof(struct ip)));
 253         if (icmph->icmp_type != ICMP_UNREACH) {
 254                 /* We only care about unreachable */
 255                 SCTP_TCB_UNLOCK(stcb);
 256                 return;
 257         }
 258         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 259             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 260             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 261             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 262             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 263             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 264             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 265             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 266
 267                 /*
 268                  * Hmm reachablity problems we must examine closely. If its
 269                  * not reachable, we may have lost a network. Or if there is
 270                  * NO protocol at the other end named SCTP. well we consider
 271                  * it a OOTB abort.
 272                  */
 273                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 274                         /* Ok that destination is NOT reachable */
 275                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 276                         net->dest_state &= ~SCTP_ADDR_PF;
 277                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 278                             stcb, SCTP_FAILED_THRESHOLD,
 279                             (void *)net, SCTP_SO_NOT_LOCKED);
 280                 }
 281                 SCTP_TCB_UNLOCK(stcb);
 282         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 283             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 284                 /*
 285                  * Here the peer is either playing tricks on us, including
 286                  * an address that belongs to someone who does not support
 287                  * SCTP OR was a userland implementation that shutdown and
 288                  * now is dead. In either case treat it like a OOTB abort
 289                  * with no TCB
 290                  */
 291                 reason = SCTP_PEER_FAULTY;
 292                 sctp_abort_notification(stcb, reason, SCTP_SO_NOT_LOCKED);
 293 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 294                 so = SCTP_INP_SO(inp);
 295                 atomic_add_int(&stcb->asoc.refcnt, 1);
 296                 SCTP_TCB_UNLOCK(stcb);
 297                 SCTP_SOCKET_LOCK(so, 1);
 298                 SCTP_TCB_LOCK(stcb);
 299                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 300 #endif
 301                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 302 #if defined (__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 303                 SCTP_SOCKET_UNLOCK(so, 1);
 304                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 305 #endif
 306                 /* no need to unlock here, since the TCB is gone */
 307         } else {
 308                 SCTP_TCB_UNLOCK(stcb);
 309         }
 310 }
 311
 312 #ifdef INET
 313 void
 314 sctp_ctlinput(cmd, sa, vip)
 315         int cmd;
 316         struct sockaddr *sa;
 317         void *vip;
 318 {
 319         struct ip *ip = vip;
 320         struct sctphdr *sh;
 321         uint32_t vrf_id;
 322
 323         /* FIX, for non-bsd is this right? */
 324         vrf_id = SCTP_DEFAULT_VRFID;
 325         if (sa->sa_family != AF_INET ||
 326             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 327                 return;
 328         }
 329         if (PRC_IS_REDIRECT(cmd)) {
 330                 ip = 0;
 331         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 332                 return;
 333         }
 334         if (ip) {
 335                 struct sctp_inpcb *inp = NULL;
 336                 struct sctp_tcb *stcb = NULL;
 337                 struct sctp_nets *net = NULL;
 338                 struct sockaddr_in to, from;
 339
 340                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 341                 bzero(&to, sizeof(to));
 342                 bzero(&from, sizeof(from));
 343                 from.sin_family = to.sin_family = AF_INET;
 344                 from.sin_len = to.sin_len = sizeof(to);
 345                 from.sin_port = sh->src_port;
 346                 from.sin_addr = ip->ip_src;
 347                 to.sin_port = sh->dest_port;
 348                 to.sin_addr = ip->ip_dst;
 349
 350                 /*
 351                  * 'to' holds the dest of the packet that failed to be sent.
 352                  * 'from' holds our local endpoint address. Thus we reverse
 353                  * the to and the from in the lookup.
 354                  */
 355                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&from,
 356                     (struct sockaddr *)&to,
 357                     &inp, &net, 1, vrf_id);
 358                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 359                         if (cmd != PRC_MSGSIZE) {
 360                                 sctp_notify(inp, ip, sh,
 361                                     (struct sockaddr *)&to, stcb,
 362                                     net);
 363                         } else {
 364                                 /* handle possible ICMP size messages */
 365                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 366                         }
 367                 } else {
 368                         if ((stcb == NULL) && (inp != NULL)) {
 369                                 /* reduce ref-count */
 370                                 SCTP_INP_WLOCK(inp);
 371                                 SCTP_INP_DECR_REF(inp);
 372                                 SCTP_INP_WUNLOCK(inp);
 373                         }
 374                         if (stcb) {
 375                                 SCTP_TCB_UNLOCK(stcb);
 376                         }
 377                 }
 378         }
 379         return;
 380 }
 381
 382 #endif
 383
 384 static int
 385 sctp_getcred(SYSCTL_HANDLER_ARGS)
 386 {
 387         struct xucred xuc;
 388         struct sockaddr_in addrs[2];
 389         struct sctp_inpcb *inp;
 390         struct sctp_nets *net;
 391         struct sctp_tcb *stcb;
 392         int error;
 393         uint32_t vrf_id;
 394
 395         /* FIX, for non-bsd is this right? */
 396         vrf_id = SCTP_DEFAULT_VRFID;
 397
 398         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 399
 400         if (error)
 401                 return (error);
 402
 403         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 404         if (error)
 405                 return (error);
 406
 407         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[0]),
 408             sintosa(&addrs[1]),
 409             &inp, &net, 1, vrf_id);
 410         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 411                 if ((inp != NULL) && (stcb == NULL)) {
 412                         /* reduce ref-count */
 413                         SCTP_INP_WLOCK(inp);
 414                         SCTP_INP_DECR_REF(inp);
 415                         goto cred_can_cont;
 416                 }
 417                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 418                 error = ENOENT;
 419                 goto out;
 420         }
 421         SCTP_TCB_UNLOCK(stcb);
 422         /*
 423          * We use the write lock here, only since in the error leg we need
 424          * it. If we used RLOCK, then we would have to
 425          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 426          * Better to use higher wlock.
 427          */
 428         SCTP_INP_WLOCK(inp);
 429 cred_can_cont:
 430         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 431         if (error) {
 432                 SCTP_INP_WUNLOCK(inp);
 433                 goto out;
 434         }
 435         cru2x(inp->sctp_socket->so_cred, &xuc);
 436         SCTP_INP_WUNLOCK(inp);
 437         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 438 out:
 439         return (error);
 440 }
 441
 442 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 443     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 444
 445
 446 #ifdef INET
 447 static void
 448 sctp_abort(struct socket *so)
 449 {
 450         struct sctp_inpcb *inp;
 451         uint32_t flags;
 452
 453         inp = (struct sctp_inpcb *)so->so_pcb;
 454         if (inp == NULL) {
 455                 return;
 456         }
 457 sctp_must_try_again:
 458         flags = inp->sctp_flags;
 459 #ifdef SCTP_LOG_CLOSING
 460         sctp_log_closing(inp, NULL, 17);
 461 #endif
 462         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 463             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 464 #ifdef SCTP_LOG_CLOSING
 465                 sctp_log_closing(inp, NULL, 16);
 466 #endif
 467                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 468                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 469                 SOCK_LOCK(so);
 470                 SCTP_SB_CLEAR(so->so_snd);
 471                 /*
 472                  * same for the rcv ones, they are only here for the
 473                  * accounting/select.
 474                  */
 475                 SCTP_SB_CLEAR(so->so_rcv);
 476
 477                 /* Now null out the reference, we are completely detached. */
 478                 so->so_pcb = NULL;
 479                 SOCK_UNLOCK(so);
 480         } else {
 481                 flags = inp->sctp_flags;
 482                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 483                         goto sctp_must_try_again;
 484                 }
 485         }
 486         return;
 487 }
 488
 489 static int
 490 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 491 {
 492         struct sctp_inpcb *inp;
 493         struct inpcb *ip_inp;
 494         int error;
 495         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 496
 497 #ifdef IPSEC
 498         uint32_t flags;
 499
 500 #endif
 501
 502         inp = (struct sctp_inpcb *)so->so_pcb;
 503         if (inp != 0) {
 504                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 505                 return (EINVAL);
 506         }
 507         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 508                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 509                 if (error) {
 510                         return (error);
 511                 }
 512         }
 513         error = sctp_inpcb_alloc(so, vrf_id);
 514         if (error) {
 515                 return (error);
 516         }
 517         inp = (struct sctp_inpcb *)so->so_pcb;
 518         SCTP_INP_WLOCK(inp);
 519         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 520         ip_inp = &inp->ip_inp.inp;
 521         ip_inp->inp_vflag |= INP_IPV4;
 522         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 523 #ifdef IPSEC
 524         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 525 #ifdef SCTP_LOG_CLOSING
 526         sctp_log_closing(inp, NULL, 17);
 527 #endif
 528         if (error != 0) {
 529 try_again:
 530                 flags = inp->sctp_flags;
 531                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 532                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 533 #ifdef SCTP_LOG_CLOSING
 534                         sctp_log_closing(inp, NULL, 15);
 535 #endif
 536                         SCTP_INP_WUNLOCK(inp);
 537                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 538                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 539                 } else {
 540                         flags = inp->sctp_flags;
 541                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 542                                 goto try_again;
 543                         } else {
 544                                 SCTP_INP_WUNLOCK(inp);
 545                         }
 546                 }
 547                 return (error);
 548         }
 549 #endif                          /* IPSEC */
 550         SCTP_INP_WUNLOCK(inp);
 551         return (0);
 552 }
 553
 554 static int
 555 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 556 {
 557         struct sctp_inpcb *inp = NULL;
 558         int error;
 559
 560 #ifdef INET
 561         if (addr && addr->sa_family != AF_INET) {
 562                 /* must be a v4 address! */
 563                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 564                 return (EINVAL);
 565         }
 566 #endif                          /* INET6 */
 567         if (addr && (addr->sa_len != sizeof(struct sockaddr_in))) {
 568                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 569                 return (EINVAL);
 570         }
 571         inp = (struct sctp_inpcb *)so->so_pcb;
 572         if (inp == NULL) {
 573                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 574                 return (EINVAL);
 575         }
 576         error = sctp_inpcb_bind(so, addr, NULL, p);
 577         return (error);
 578 }
 579
 580 #endif
 581 void
 582 sctp_close(struct socket *so)
 583 {
 584         struct sctp_inpcb *inp;
 585         uint32_t flags;
 586
 587         inp = (struct sctp_inpcb *)so->so_pcb;
 588         if (inp == NULL)
 589                 return;
 590
 591         /*
 592          * Inform all the lower layer assoc that we are done.
 593          */
 594 sctp_must_try_again:
 595         flags = inp->sctp_flags;
 596 #ifdef SCTP_LOG_CLOSING
 597         sctp_log_closing(inp, NULL, 17);
 598 #endif
 599         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 600             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 601                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 602                     (so->so_rcv.sb_cc > 0)) {
 603 #ifdef SCTP_LOG_CLOSING
 604                         sctp_log_closing(inp, NULL, 13);
 605 #endif
 606                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 607                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 608                 } else {
 609 #ifdef SCTP_LOG_CLOSING
 610                         sctp_log_closing(inp, NULL, 14);
 611 #endif
 612                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 613                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 614                 }
 615                 /*
 616                  * The socket is now detached, no matter what the state of
 617                  * the SCTP association.
 618                  */
 619                 SOCK_LOCK(so);
 620                 SCTP_SB_CLEAR(so->so_snd);
 621                 /*
 622                  * same for the rcv ones, they are only here for the
 623                  * accounting/select.
 624                  */
 625                 SCTP_SB_CLEAR(so->so_rcv);
 626
 627                 /* Now null out the reference, we are completely detached. */
 628                 so->so_pcb = NULL;
 629                 SOCK_UNLOCK(so);
 630         } else {
 631                 flags = inp->sctp_flags;
 632                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 633                         goto sctp_must_try_again;
 634                 }
 635         }
 636         return;
 637 }
 638
 639
 640 int
 641 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 642     struct mbuf *control, struct thread *p);
 643
 644
 645 int
 646 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 647     struct mbuf *control, struct thread *p)
 648 {
 649         struct sctp_inpcb *inp;
 650         int error;
 651
 652         inp = (struct sctp_inpcb *)so->so_pcb;
 653         if (inp == NULL) {
 654                 if (control) {
 655                         sctp_m_freem(control);
 656                         control = NULL;
 657                 }
 658                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 659                 sctp_m_freem(m);
 660                 return (EINVAL);
 661         }
 662         /* Got to have an to address if we are NOT a connected socket */
 663         if ((addr == NULL) &&
 664             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 665             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 666                 goto connected_type;
 667         } else if (addr == NULL) {
 668                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 669                 error = EDESTADDRREQ;
 670                 sctp_m_freem(m);
 671                 if (control) {
 672                         sctp_m_freem(control);
 673                         control = NULL;
 674                 }
 675                 return (error);
 676         }
 677 #ifdef INET6
 678         if (addr->sa_family != AF_INET) {
 679                 /* must be a v4 address! */
 680                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 681                 sctp_m_freem(m);
 682                 if (control) {
 683                         sctp_m_freem(control);
 684                         control = NULL;
 685                 }
 686                 error = EDESTADDRREQ;
 687                 return (error);
 688         }
 689 #endif                          /* INET6 */
 690 connected_type:
 691         /* now what about control */
 692         if (control) {
 693                 if (inp->control) {
 694                         SCTP_PRINTF("huh? control set?\n");
 695                         sctp_m_freem(inp->control);
 696                         inp->control = NULL;
 697                 }
 698                 inp->control = control;
 699         }
 700         /* Place the data */
 701         if (inp->pkt) {
 702                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 703                 inp->pkt_last = m;
 704         } else {
 705                 inp->pkt_last = inp->pkt = m;
 706         }
 707         if (
 708         /* FreeBSD uses a flag passed */
 709             ((flags & PRUS_MORETOCOME) == 0)
 710             ) {
 711                 /*
 712                  * note with the current version this code will only be used
 713                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 714                  * re-defining sosend to use the sctp_sosend. One can
 715                  * optionally switch back to this code (by changing back the
 716                  * definitions) but this is not advisable. This code is used
 717                  * by FreeBSD when sending a file with sendfile() though.
 718                  */
 719                 int ret;
 720
 721                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 722                 inp->pkt = NULL;
 723                 inp->control = NULL;
 724                 return (ret);
 725         } else {
 726                 return (0);
 727         }
 728 }
 729
 730 int
 731 sctp_disconnect(struct socket *so)
 732 {
 733         struct sctp_inpcb *inp;
 734
 735         inp = (struct sctp_inpcb *)so->so_pcb;
 736         if (inp == NULL) {
 737                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 738                 return (ENOTCONN);
 739         }
 740         SCTP_INP_RLOCK(inp);
 741         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 742             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 743                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 744                         /* No connection */
 745                         SCTP_INP_RUNLOCK(inp);
 746                         return (0);
 747                 } else {
 748                         struct sctp_association *asoc;
 749                         struct sctp_tcb *stcb;
 750
 751                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 752                         if (stcb == NULL) {
 753                                 SCTP_INP_RUNLOCK(inp);
 754                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 755                                 return (EINVAL);
 756                         }
 757                         SCTP_TCB_LOCK(stcb);
 758                         asoc = &stcb->asoc;
 759                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 760                                 /* We are about to be freed, out of here */
 761                                 SCTP_TCB_UNLOCK(stcb);
 762                                 SCTP_INP_RUNLOCK(inp);
 763                                 return (0);
 764                         }
 765                         if (((so->so_options & SO_LINGER) &&
 766                             (so->so_linger == 0)) ||
 767                             (so->so_rcv.sb_cc > 0)) {
 768                                 if (SCTP_GET_STATE(asoc) !=
 769                                     SCTP_STATE_COOKIE_WAIT) {
 770                                         /* Left with Data unread */
 771                                         struct mbuf *err;
 772
 773                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_DONTWAIT, 1, MT_DATA);
 774                                         if (err) {
 775                                                 /*
 776                                                  * Fill in the user
 777                                                  * initiated abort
 778                                                  */
 779                                                 struct sctp_paramhdr *ph;
 780
 781                                                 ph = mtod(err, struct sctp_paramhdr *);
 782                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 783                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 784                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 785                                         }
 786 #if defined(SCTP_PANIC_ON_ABORT)
 787                                         panic("disconnect does an abort");
 788 #endif
 789                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 790                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 791                                 }
 792                                 SCTP_INP_RUNLOCK(inp);
 793                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 794                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 795                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 796                                 }
 797                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 798                                 /* No unlock tcb assoc is gone */
 799                                 return (0);
 800                         }
 801                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 802                             TAILQ_EMPTY(&asoc->sent_queue) &&
 803                             (asoc->stream_queue_cnt == 0)) {
 804                                 /* there is nothing queued to send, so done */
 805                                 if (asoc->locked_on_sending) {
 806                                         goto abort_anyway;
 807                                 }
 808                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 809                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 810                                         /* only send SHUTDOWN 1st time thru */
 811                                         struct sctp_nets *netp;
 812
 813                                         if (stcb->asoc.alternate) {
 814                                                 netp = stcb->asoc.alternate;
 815                                         } else {
 816                                                 netp = stcb->asoc.primary_destination;
 817                                         }
 818                                         sctp_stop_timers_for_shutdown(stcb);
 819                                         sctp_send_shutdown(stcb, netp);
 820                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 821                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 822                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 823                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 824                                         }
 825                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 826                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 827                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 828                                             stcb->sctp_ep, stcb, netp);
 829                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 830                                             stcb->sctp_ep, stcb, netp);
 831
 832                                 }
 833                         } else {
 834                                 /*
 835                                  * we still got (or just got) data to send,
 836                                  * so set SHUTDOWN_PENDING
 837                                  */
 838                                 /*
 839                                  * XXX sockets draft says that SCTP_EOF
 840                                  * should be sent with no data. currently,
 841                                  * we will allow user data to be sent first
 842                                  * and move to SHUTDOWN-PENDING
 843                                  */
 844                                 struct sctp_nets *netp;
 845
 846                                 if (stcb->asoc.alternate) {
 847                                         netp = stcb->asoc.alternate;
 848                                 } else {
 849                                         netp = stcb->asoc.primary_destination;
 850                                 }
 851
 852                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 853                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 854                                     netp);
 855                                 if (asoc->locked_on_sending) {
 856                                         /* Locked to send out the data */
 857                                         struct sctp_stream_queue_pending *sp;
 858
 859                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 860                                         if (sp == NULL) {
 861                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 862                                                     asoc->locked_on_sending->stream_no);
 863                                         } else {
 864                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 865                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 866                                         }
 867                                 }
 868                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 869                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 870                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 871                                         struct mbuf *op_err;
 872
 873                         abort_anyway:
 874                                         op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
 875                                             0, M_DONTWAIT, 1, MT_DATA);
 876                                         if (op_err) {
 877                                                 /*
 878                                                  * Fill in the user
 879                                                  * initiated abort
 880                                                  */
 881                                                 struct sctp_paramhdr *ph;
 882                                                 uint32_t *ippp;
 883
 884                                                 SCTP_BUF_LEN(op_err) =
 885                                                     (sizeof(struct sctp_paramhdr) + sizeof(uint32_t));
 886                                                 ph = mtod(op_err,
 887                                                     struct sctp_paramhdr *);
 888                                                 ph->param_type = htons(
 889                                                     SCTP_CAUSE_USER_INITIATED_ABT);
 890                                                 ph->param_length = htons(SCTP_BUF_LEN(op_err));
 891                                                 ippp = (uint32_t *) (ph + 1);
 892                                                 *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4);
 893                                         }
 894 #if defined(SCTP_PANIC_ON_ABORT)
 895                                         panic("disconnect does an abort");
 896 #endif
 897
 898                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 899                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 900                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 901                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 902                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 903                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 904                                         }
 905                                         SCTP_INP_RUNLOCK(inp);
 906                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 907                                         return (0);
 908                                 } else {
 909                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 910                                 }
 911                         }
 912                         soisdisconnecting(so);
 913                         SCTP_TCB_UNLOCK(stcb);
 914                         SCTP_INP_RUNLOCK(inp);
 915                         return (0);
 916                 }
 917                 /* not reached */
 918         } else {
 919                 /* UDP model does not support this */
 920                 SCTP_INP_RUNLOCK(inp);
 921                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 922                 return (EOPNOTSUPP);
 923         }
 924 }
 925
 926 int
 927 sctp_flush(struct socket *so, int how)
 928 {
 929         /*
 930          * We will just clear out the values and let subsequent close clear
 931          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 932          * they will not be able to read the data, the socket will block
 933          * that from happening.
 934          */
 935         struct sctp_inpcb *inp;
 936
 937         inp = (struct sctp_inpcb *)so->so_pcb;
 938         if (inp == NULL) {
 939                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 940                 return (EINVAL);
 941         }
 942         SCTP_INP_RLOCK(inp);
 943         /* For the 1 to many model this does nothing */
 944         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 945                 SCTP_INP_RUNLOCK(inp);
 946                 return (0);
 947         }
 948         SCTP_INP_RUNLOCK(inp);
 949         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 950                 /*
 951                  * First make sure the sb will be happy, we don't use these
 952                  * except maybe the count
 953                  */
 954                 SCTP_INP_WLOCK(inp);
 955                 SCTP_INP_READ_LOCK(inp);
 956                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 957                 SCTP_INP_READ_UNLOCK(inp);
 958                 SCTP_INP_WUNLOCK(inp);
 959                 so->so_rcv.sb_cc = 0;
 960                 so->so_rcv.sb_mbcnt = 0;
 961                 so->so_rcv.sb_mb = NULL;
 962         }
 963         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 964                 /*
 965                  * First make sure the sb will be happy, we don't use these
 966                  * except maybe the count
 967                  */
 968                 so->so_snd.sb_cc = 0;
 969                 so->so_snd.sb_mbcnt = 0;
 970                 so->so_snd.sb_mb = NULL;
 971
 972         }
 973         return (0);
 974 }
 975
 976 int
 977 sctp_shutdown(struct socket *so)
 978 {
 979         struct sctp_inpcb *inp;
 980
 981         inp = (struct sctp_inpcb *)so->so_pcb;
 982         if (inp == NULL) {
 983                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 984                 return (EINVAL);
 985         }
 986         SCTP_INP_RLOCK(inp);
 987         /* For UDP model this is a invalid call */
 988         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 989                 /* Restore the flags that the soshutdown took away. */
 990                 SOCKBUF_LOCK(&so->so_rcv);
 991                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 992                 SOCKBUF_UNLOCK(&so->so_rcv);
 993                 /* This proc will wakeup for read and do nothing (I hope) */
 994                 SCTP_INP_RUNLOCK(inp);
 995                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 996                 return (EOPNOTSUPP);
 997         }
 998         /*
 999          * Ok if we reach here its the TCP model and it is either a SHUT_WR
1000          * or SHUT_RDWR. This means we put the shutdown flag against it.
1001          */
1002         {
1003                 struct sctp_tcb *stcb;
1004                 struct sctp_association *asoc;
1005
1006                 if ((so->so_state &
1007                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
1008                         SCTP_INP_RUNLOCK(inp);
1009                         return (ENOTCONN);
1010                 }
1011                 socantsendmore(so);
1012
1013                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1014                 if (stcb == NULL) {
1015                         /*
1016                          * Ok we hit the case that the shutdown call was
1017                          * made after an abort or something. Nothing to do
1018                          * now.
1019                          */
1020                         SCTP_INP_RUNLOCK(inp);
1021                         return (0);
1022                 }
1023                 SCTP_TCB_LOCK(stcb);
1024                 asoc = &stcb->asoc;
1025                 if (TAILQ_EMPTY(&asoc->send_queue) &&
1026                     TAILQ_EMPTY(&asoc->sent_queue) &&
1027                     (asoc->stream_queue_cnt == 0)) {
1028                         if (asoc->locked_on_sending) {
1029                                 goto abort_anyway;
1030                         }
1031                         /* there is nothing queued to send, so I'm done... */
1032                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
1033                                 /* only send SHUTDOWN the first time through */
1034                                 struct sctp_nets *netp;
1035
1036                                 if (stcb->asoc.alternate) {
1037                                         netp = stcb->asoc.alternate;
1038                                 } else {
1039                                         netp = stcb->asoc.primary_destination;
1040                                 }
1041                                 sctp_stop_timers_for_shutdown(stcb);
1042                                 sctp_send_shutdown(stcb, netp);
1043                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1044                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1045                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1046                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1047                                 }
1048                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1049                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1050                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1051                                     stcb->sctp_ep, stcb, netp);
1052                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1053                                     stcb->sctp_ep, stcb, netp);
1054                         }
1055                 } else {
1056                         /*
1057                          * we still got (or just got) data to send, so set
1058                          * SHUTDOWN_PENDING
1059                          */
1060                         struct sctp_nets *netp;
1061
1062                         if (stcb->asoc.alternate) {
1063                                 netp = stcb->asoc.alternate;
1064                         } else {
1065                                 netp = stcb->asoc.primary_destination;
1066                         }
1067
1068                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1069                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1070                             netp);
1071
1072                         if (asoc->locked_on_sending) {
1073                                 /* Locked to send out the data */
1074                                 struct sctp_stream_queue_pending *sp;
1075
1076                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1077                                 if (sp == NULL) {
1078                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1079                                             asoc->locked_on_sending->stream_no);
1080                                 } else {
1081                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1082                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1083                                         }
1084                                 }
1085                         }
1086                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1087                             TAILQ_EMPTY(&asoc->sent_queue) &&
1088                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1089                                 struct mbuf *op_err;
1090
1091                 abort_anyway:
1092                                 op_err = sctp_get_mbuf_for_msg((sizeof(struct sctp_paramhdr) + sizeof(uint32_t)),
1093                                     0, M_DONTWAIT, 1, MT_DATA);
1094                                 if (op_err) {
1095                                         /* Fill in the user initiated abort */
1096                                         struct sctp_paramhdr *ph;
1097                                         uint32_t *ippp;
1098
1099                                         SCTP_BUF_LEN(op_err) =
1100                                             sizeof(struct sctp_paramhdr) + sizeof(uint32_t);
1101                                         ph = mtod(op_err,
1102                                             struct sctp_paramhdr *);
1103                                         ph->param_type = htons(
1104                                             SCTP_CAUSE_USER_INITIATED_ABT);
1105                                         ph->param_length = htons(SCTP_BUF_LEN(op_err));
1106                                         ippp = (uint32_t *) (ph + 1);
1107                                         *ippp = htonl(SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1108                                 }
1109 #if defined(SCTP_PANIC_ON_ABORT)
1110                                 panic("shutdown does an abort");
1111 #endif
1112                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1113                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1114                                     SCTP_RESPONSE_TO_USER_REQ,
1115                                     op_err, SCTP_SO_LOCKED);
1116                                 goto skip_unlock;
1117                         } else {
1118                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1119                         }
1120                 }
1121                 SCTP_TCB_UNLOCK(stcb);
1122         }
1123 skip_unlock:
1124         SCTP_INP_RUNLOCK(inp);
1125         return (0);
1126 }
1127
1128 /*
1129  * copies a "user" presentable address and removes embedded scope, etc.
1130  * returns 0 on success, 1 on error
1131  */
1132 static uint32_t
1133 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1134 {
1135 #ifdef INET6
1136         struct sockaddr_in6 lsa6;
1137
1138         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1139             &lsa6);
1140 #endif
1141         memcpy(ss, sa, sa->sa_len);
1142         return (0);
1143 }
1144
1145
1146
1147 /*
1148  * NOTE: assumes addr lock is held
1149  */
1150 static size_t
1151 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1152     struct sctp_tcb *stcb,
1153     size_t limit,
1154     struct sockaddr_storage *sas,
1155     uint32_t vrf_id)
1156 {
1157         struct sctp_ifn *sctp_ifn;
1158         struct sctp_ifa *sctp_ifa;
1159         int loopback_scope, ipv4_local_scope, local_scope, site_scope;
1160         size_t actual;
1161         int ipv4_addr_legal, ipv6_addr_legal;
1162         struct sctp_vrf *vrf;
1163
1164         actual = 0;
1165         if (limit <= 0)
1166                 return (actual);
1167
1168         if (stcb) {
1169                 /* Turn on all the appropriate scope */
1170                 loopback_scope = stcb->asoc.loopback_scope;
1171                 ipv4_local_scope = stcb->asoc.ipv4_local_scope;
1172                 local_scope = stcb->asoc.local_scope;
1173                 site_scope = stcb->asoc.site_scope;
1174         } else {
1175                 /* Turn on ALL scope, since we look at the EP */
1176                 loopback_scope = ipv4_local_scope = local_scope =
1177                     site_scope = 1;
1178         }
1179         ipv4_addr_legal = ipv6_addr_legal = 0;
1180         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1181                 ipv6_addr_legal = 1;
1182                 if (SCTP_IPV6_V6ONLY(inp) == 0) {
1183                         ipv4_addr_legal = 1;
1184                 }
1185         } else {
1186                 ipv4_addr_legal = 1;
1187         }
1188         vrf = sctp_find_vrf(vrf_id);
1189         if (vrf == NULL) {
1190                 return (0);
1191         }
1192         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1193                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1194                         if ((loopback_scope == 0) &&
1195                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1196                                 /* Skip loopback if loopback_scope not set */
1197                                 continue;
1198                         }
1199                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1200                                 if (stcb) {
1201                                         /*
1202                                          * For the BOUND-ALL case, the list
1203                                          * associated with a TCB is Always
1204                                          * considered a reverse list.. i.e.
1205                                          * it lists addresses that are NOT
1206                                          * part of the association. If this
1207                                          * is one of those we must skip it.
1208                                          */
1209                                         if (sctp_is_addr_restricted(stcb,
1210                                             sctp_ifa)) {
1211                                                 continue;
1212                                         }
1213                                 }
1214                                 switch (sctp_ifa->address.sa.sa_family) {
1215 #ifdef INET
1216                                 case AF_INET:
1217                                         if (ipv4_addr_legal) {
1218                                                 struct sockaddr_in *sin;
1219
1220                                                 sin = (struct sockaddr_in *)&sctp_ifa->address.sa;
1221                                                 if (sin->sin_addr.s_addr == 0) {
1222                                                         /*
1223                                                          * we skip
1224                                                          * unspecifed
1225                                                          * addresses
1226                                                          */
1227                                                         continue;
1228                                                 }
1229                                                 if ((ipv4_local_scope == 0) &&
1230                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1231                                                         continue;
1232                                                 }
1233 #ifdef INET6
1234                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1235                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1236                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1237                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1238                                                         actual += sizeof(struct sockaddr_in6);
1239                                                 } else {
1240 #endif
1241                                                         memcpy(sas, sin, sizeof(*sin));
1242                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1243                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1244                                                         actual += sizeof(*sin);
1245 #ifdef INET6
1246                                                 }
1247 #endif
1248                                                 if (actual >= limit) {
1249                                                         return (actual);
1250                                                 }
1251                                         } else {
1252                                                 continue;
1253                                         }
1254                                         break;
1255 #endif
1256 #ifdef INET6
1257                                 case AF_INET6:
1258                                         if (ipv6_addr_legal) {
1259                                                 struct sockaddr_in6 *sin6;
1260
1261                                                 sin6 = (struct sockaddr_in6 *)&sctp_ifa->address.sa;
1262                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1263                                                         /*
1264                                                          * we skip
1265                                                          * unspecifed
1266                                                          * addresses
1267                                                          */
1268                                                         continue;
1269                                                 }
1270                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1271                                                         if (local_scope == 0)
1272                                                                 continue;
1273                                                         if (sin6->sin6_scope_id == 0) {
1274                                                                 if (sa6_recoverscope(sin6) != 0)
1275                                                                         /*
1276                                                                          *
1277                                                                          * bad
1278                                                                          *
1279                                                                          * li
1280                                                                          * nk
1281                                                                          *
1282                                                                          * loc
1283                                                                          * al
1284                                                                          *
1285                                                                          * add
1286                                                                          * re
1287                                                                          * ss
1288                                                                          * */
1289                                                                         continue;
1290                                                         }
1291                                                 }
1292                                                 if ((site_scope == 0) &&
1293                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1294                                                         continue;
1295                                                 }
1296                                                 memcpy(sas, sin6, sizeof(*sin6));
1297                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1298                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1299                                                 actual += sizeof(*sin6);
1300                                                 if (actual >= limit) {
1301                                                         return (actual);
1302                                                 }
1303                                         } else {
1304                                                 continue;
1305                                         }
1306                                         break;
1307 #endif
1308                                 default:
1309                                         /* TSNH */
1310                                         break;
1311                                 }
1312                         }
1313                 }
1314         } else {
1315                 struct sctp_laddr *laddr;
1316
1317                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1318                         if (stcb) {
1319                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1320                                         continue;
1321                                 }
1322                         }
1323                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1324                                 continue;
1325
1326                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1327                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1328                             laddr->ifa->address.sa.sa_len);
1329                         actual += laddr->ifa->address.sa.sa_len;
1330                         if (actual >= limit) {
1331                                 return (actual);
1332                         }
1333                 }
1334         }
1335         return (actual);
1336 }
1337
1338 static size_t
1339 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1340     struct sctp_tcb *stcb,
1341     size_t limit,
1342     struct sockaddr_storage *sas)
1343 {
1344         size_t size = 0;
1345
1346         SCTP_IPI_ADDR_RLOCK();
1347         /* fill up addresses for the endpoint's default vrf */
1348         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1349             inp->def_vrf_id);
1350         SCTP_IPI_ADDR_RUNLOCK();
1351         return (size);
1352 }
1353
1354 /*
1355  * NOTE: assumes addr lock is held
1356  */
1357 static int
1358 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1359 {
1360         int cnt = 0;
1361         struct sctp_vrf *vrf = NULL;
1362
1363         /*
1364          * In both sub-set bound an bound_all cases we return the MAXIMUM
1365          * number of addresses that you COULD get. In reality the sub-set
1366          * bound may have an exclusion list for a given TCB OR in the
1367          * bound-all case a TCB may NOT include the loopback or other
1368          * addresses as well.
1369          */
1370         vrf = sctp_find_vrf(vrf_id);
1371         if (vrf == NULL) {
1372                 return (0);
1373         }
1374         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1375                 struct sctp_ifn *sctp_ifn;
1376                 struct sctp_ifa *sctp_ifa;
1377
1378                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1379                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1380                                 /* Count them if they are the right type */
1381                                 switch (sctp_ifa->address.sa.sa_family) {
1382 #ifdef INET
1383                                 case AF_INET:
1384                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1385                                                 cnt += sizeof(struct sockaddr_in6);
1386                                         else
1387                                                 cnt += sizeof(struct sockaddr_in);
1388                                         break;
1389 #endif
1390 #ifdef INET6
1391                                 case AF_INET6:
1392                                         cnt += sizeof(struct sockaddr_in6);
1393                                         break;
1394 #endif
1395                                 default:
1396                                         break;
1397                                 }
1398                         }
1399                 }
1400         } else {
1401                 struct sctp_laddr *laddr;
1402
1403                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1404                         switch (laddr->ifa->address.sa.sa_family) {
1405 #ifdef INET
1406                         case AF_INET:
1407                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1408                                         cnt += sizeof(struct sockaddr_in6);
1409                                 else
1410                                         cnt += sizeof(struct sockaddr_in);
1411                                 break;
1412 #endif
1413 #ifdef INET6
1414                         case AF_INET6:
1415                                 cnt += sizeof(struct sockaddr_in6);
1416                                 break;
1417 #endif
1418                         default:
1419                                 break;
1420                         }
1421                 }
1422         }
1423         return (cnt);
1424 }
1425
1426 static int
1427 sctp_count_max_addresses(struct sctp_inpcb *inp)
1428 {
1429         int cnt = 0;
1430
1431         SCTP_IPI_ADDR_RLOCK();
1432         /* count addresses for the endpoint's default VRF */
1433         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1434         SCTP_IPI_ADDR_RUNLOCK();
1435         return (cnt);
1436 }
1437
1438 static int
1439 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1440     size_t optsize, void *p, int delay)
1441 {
1442         int error = 0;
1443         int creat_lock_on = 0;
1444         struct sctp_tcb *stcb = NULL;
1445         struct sockaddr *sa;
1446         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1447         uint32_t vrf_id;
1448         int bad_addresses = 0;
1449         sctp_assoc_t *a_id;
1450
1451         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1452
1453         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1454             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1455                 /* We are already connected AND the TCP model */
1456                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1457                 return (EADDRINUSE);
1458         }
1459         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1460             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1461                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1462                 return (EINVAL);
1463         }
1464         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1465                 SCTP_INP_RLOCK(inp);
1466                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1467                 SCTP_INP_RUNLOCK(inp);
1468         }
1469         if (stcb) {
1470                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1471                 return (EALREADY);
1472         }
1473         SCTP_INP_INCR_REF(inp);
1474         SCTP_ASOC_CREATE_LOCK(inp);
1475         creat_lock_on = 1;
1476         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1477             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1478                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1479                 error = EFAULT;
1480                 goto out_now;
1481         }
1482         totaddrp = (int *)optval;
1483         totaddr = *totaddrp;
1484         sa = (struct sockaddr *)(totaddrp + 1);
1485         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1486         if ((stcb != NULL) || bad_addresses) {
1487                 /* Already have or am bring up an association */
1488                 SCTP_ASOC_CREATE_UNLOCK(inp);
1489                 creat_lock_on = 0;
1490                 if (stcb)
1491                         SCTP_TCB_UNLOCK(stcb);
1492                 if (bad_addresses == 0) {
1493                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1494                         error = EALREADY;
1495                 }
1496                 goto out_now;
1497         }
1498 #ifdef INET6
1499         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1500             (num_v6 > 0)) {
1501                 error = EINVAL;
1502                 goto out_now;
1503         }
1504         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1505             (num_v4 > 0)) {
1506                 struct in6pcb *inp6;
1507
1508                 inp6 = (struct in6pcb *)inp;
1509                 if (SCTP_IPV6_V6ONLY(inp6)) {
1510                         /*
1511                          * if IPV6_V6ONLY flag, ignore connections destined
1512                          * to a v4 addr or v4-mapped addr
1513                          */
1514                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1515                         error = EINVAL;
1516                         goto out_now;
1517                 }
1518         }
1519 #endif                          /* INET6 */
1520         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1521             SCTP_PCB_FLAGS_UNBOUND) {
1522                 /* Bind a ephemeral port */
1523                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1524                 if (error) {
1525                         goto out_now;
1526                 }
1527         }
1528         /* FIX ME: do we want to pass in a vrf on the connect call? */
1529         vrf_id = inp->def_vrf_id;
1530
1531
1532         /* We are GOOD to go */
1533         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1534             (struct thread *)p
1535             );
1536         if (stcb == NULL) {
1537                 /* Gak! no memory */
1538                 goto out_now;
1539         }
1540         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1541                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1542                 /* Set the connected flag so we can queue data */
1543                 soisconnecting(so);
1544         }
1545         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1546         /* move to second address */
1547         switch (sa->sa_family) {
1548 #ifdef INET
1549         case AF_INET:
1550                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1551                 break;
1552 #endif
1553 #ifdef INET6
1554         case AF_INET6:
1555                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1556                 break;
1557 #endif
1558         default:
1559                 break;
1560         }
1561
1562         error = 0;
1563         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1564         /* Fill in the return id */
1565         if (error) {
1566                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6);
1567                 goto out_now;
1568         }
1569         a_id = (sctp_assoc_t *) optval;
1570         *a_id = sctp_get_associd(stcb);
1571
1572         /* initialize authentication parameters for the assoc */
1573         sctp_initialize_auth_params(inp, stcb);
1574
1575         if (delay) {
1576                 /* doing delayed connection */
1577                 stcb->asoc.delayed_connection = 1;
1578                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1579         } else {
1580                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1581                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1582         }
1583         SCTP_TCB_UNLOCK(stcb);
1584         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1585                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1586                 /* Set the connected flag so we can queue data */
1587                 soisconnecting(so);
1588         }
1589 out_now:
1590         if (creat_lock_on) {
1591                 SCTP_ASOC_CREATE_UNLOCK(inp);
1592         }
1593         SCTP_INP_DECR_REF(inp);
1594         return (error);
1595 }
1596
1597 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1598         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1599             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1600                 SCTP_INP_RLOCK(inp); \
1601                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1602                 if (stcb) { \
1603                         SCTP_TCB_LOCK(stcb); \
1604                 } \
1605                 SCTP_INP_RUNLOCK(inp); \
1606         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1607                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1608                 if (stcb == NULL) { \
1609                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1610                         error = ENOENT; \
1611                         break; \
1612                 } \
1613         } else { \
1614                 stcb = NULL; \
1615         } \
1616   }
1617
1618
1619 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size)  {\
1620         if (size < sizeof(type)) { \
1621                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1622                 error = EINVAL; \
1623                 break; \
1624         } else { \
1625                 destp = (type *)srcp; \
1626         } \
1627       }
1628
1629 static int
1630 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1631     void *p)
1632 {
1633         struct sctp_inpcb *inp = NULL;
1634         int error, val = 0;
1635         struct sctp_tcb *stcb = NULL;
1636
1637         if (optval == NULL) {
1638                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1639                 return (EINVAL);
1640         }
1641         inp = (struct sctp_inpcb *)so->so_pcb;
1642         if (inp == NULL) {
1643                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1644                 return EINVAL;
1645         }
1646         error = 0;
1647
1648         switch (optname) {
1649         case SCTP_NODELAY:
1650         case SCTP_AUTOCLOSE:
1651         case SCTP_EXPLICIT_EOR:
1652         case SCTP_AUTO_ASCONF:
1653         case SCTP_DISABLE_FRAGMENTS:
1654         case SCTP_I_WANT_MAPPED_V4_ADDR:
1655         case SCTP_USE_EXT_RCVINFO:
1656                 SCTP_INP_RLOCK(inp);
1657                 switch (optname) {
1658                 case SCTP_DISABLE_FRAGMENTS:
1659                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1660                         break;
1661                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1662                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1663                         break;
1664                 case SCTP_AUTO_ASCONF:
1665                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1666                                 /* only valid for bound all sockets */
1667                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1668                         } else {
1669                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1670                                 error = EINVAL;
1671                                 goto flags_out;
1672                         }
1673                         break;
1674                 case SCTP_EXPLICIT_EOR:
1675                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1676                         break;
1677                 case SCTP_NODELAY:
1678                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1679                         break;
1680                 case SCTP_USE_EXT_RCVINFO:
1681                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1682                         break;
1683                 case SCTP_AUTOCLOSE:
1684                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1685                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1686                         else
1687                                 val = 0;
1688                         break;
1689
1690                 default:
1691                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1692                         error = ENOPROTOOPT;
1693                 }               /* end switch (sopt->sopt_name) */
1694                 if (*optsize < sizeof(val)) {
1695                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1696                         error = EINVAL;
1697                 }
1698 flags_out:
1699                 SCTP_INP_RUNLOCK(inp);
1700                 if (error == 0) {
1701                         /* return the option value */
1702                         *(int *)optval = val;
1703                         *optsize = sizeof(val);
1704                 }
1705                 break;
1706         case SCTP_GET_PACKET_LOG:
1707                 {
1708 #ifdef  SCTP_PACKET_LOGGING
1709                         uint8_t *target;
1710                         int ret;
1711
1712                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1713                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1714                         *optsize = ret;
1715 #else
1716                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1717                         error = EOPNOTSUPP;
1718 #endif
1719                         break;
1720                 }
1721         case SCTP_REUSE_PORT:
1722                 {
1723                         uint32_t *value;
1724
1725                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1726                                 /* Can't do this for a 1-m socket */
1727                                 error = EINVAL;
1728                                 break;
1729                         }
1730                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1731                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1732                         *optsize = sizeof(uint32_t);
1733                         break;
1734                 }
1735         case SCTP_PARTIAL_DELIVERY_POINT:
1736                 {
1737                         uint32_t *value;
1738
1739                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1740                         *value = inp->partial_delivery_point;
1741                         *optsize = sizeof(uint32_t);
1742                         break;
1743                 }
1744         case SCTP_FRAGMENT_INTERLEAVE:
1745                 {
1746                         uint32_t *value;
1747
1748                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1749                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1750                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1751                                         *value = SCTP_FRAG_LEVEL_2;
1752                                 } else {
1753                                         *value = SCTP_FRAG_LEVEL_1;
1754                                 }
1755                         } else {
1756                                 *value = SCTP_FRAG_LEVEL_0;
1757                         }
1758                         *optsize = sizeof(uint32_t);
1759                         break;
1760                 }
1761         case SCTP_CMT_ON_OFF:
1762                 {
1763                         struct sctp_assoc_value *av;
1764
1765                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1766                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1767                         if (stcb) {
1768                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1769                                 SCTP_TCB_UNLOCK(stcb);
1770                         } else {
1771                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1772                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1773                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1774                                         SCTP_INP_RLOCK(inp);
1775                                         av->assoc_value = inp->sctp_cmt_on_off;
1776                                         SCTP_INP_RUNLOCK(inp);
1777                                 } else {
1778                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1779                                         error = EINVAL;
1780                                 }
1781                         }
1782                         if (error == 0) {
1783                                 *optsize = sizeof(struct sctp_assoc_value);
1784                         }
1785                         break;
1786                 }
1787         case SCTP_PLUGGABLE_CC:
1788                 {
1789                         struct sctp_assoc_value *av;
1790
1791                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1792                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1793                         if (stcb) {
1794                                 av->assoc_value = stcb->asoc.congestion_control_module;
1795                                 SCTP_TCB_UNLOCK(stcb);
1796                         } else {
1797                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1798                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1799                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1800                                         SCTP_INP_RLOCK(inp);
1801                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1802                                         SCTP_INP_RUNLOCK(inp);
1803                                 } else {
1804                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1805                                         error = EINVAL;
1806                                 }
1807                         }
1808                         if (error == 0) {
1809                                 *optsize = sizeof(struct sctp_assoc_value);
1810                         }
1811                         break;
1812                 }
1813         case SCTP_CC_OPTION:
1814                 {
1815                         struct sctp_cc_option *cc_opt;
1816
1817                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1818                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1819                         if (stcb == NULL) {
1820                                 error = EINVAL;
1821                         } else {
1822                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1823                                         error = ENOTSUP;
1824                                 } else {
1825                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1826                                         *optsize = sizeof(struct sctp_cc_option);
1827                                 }
1828                                 SCTP_TCB_UNLOCK(stcb);
1829                         }
1830                         break;
1831                 }
1832         case SCTP_PLUGGABLE_SS:
1833                 {
1834                         struct sctp_assoc_value *av;
1835
1836                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1837                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1838                         if (stcb) {
1839                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1840                                 SCTP_TCB_UNLOCK(stcb);
1841                         } else {
1842                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1843                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1844                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1845                                         SCTP_INP_RLOCK(inp);
1846                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1847                                         SCTP_INP_RUNLOCK(inp);
1848                                 } else {
1849                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1850                                         error = EINVAL;
1851                                 }
1852                         }
1853                         if (error == 0) {
1854                                 *optsize = sizeof(struct sctp_assoc_value);
1855                         }
1856                         break;
1857                 }
1858         case SCTP_SS_VALUE:
1859                 {
1860                         struct sctp_stream_value *av;
1861
1862                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1863                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1864                         if (stcb) {
1865                                 if (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1866                                     &av->stream_value) < 0) {
1867                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1868                                         error = EINVAL;
1869                                 } else {
1870                                         *optsize = sizeof(struct sctp_stream_value);
1871                                 }
1872                                 SCTP_TCB_UNLOCK(stcb);
1873                         } else {
1874                                 /*
1875                                  * Can't get stream value without
1876                                  * association
1877                                  */
1878                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1879                                 error = EINVAL;
1880                         }
1881                         break;
1882                 }
1883         case SCTP_GET_ADDR_LEN:
1884                 {
1885                         struct sctp_assoc_value *av;
1886
1887                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1888                         error = EINVAL;
1889 #ifdef INET
1890                         if (av->assoc_value == AF_INET) {
1891                                 av->assoc_value = sizeof(struct sockaddr_in);
1892                                 error = 0;
1893                         }
1894 #endif
1895 #ifdef INET6
1896                         if (av->assoc_value == AF_INET6) {
1897                                 av->assoc_value = sizeof(struct sockaddr_in6);
1898                                 error = 0;
1899                         }
1900 #endif
1901                         if (error) {
1902                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1903                         } else {
1904                                 *optsize = sizeof(struct sctp_assoc_value);
1905                         }
1906                         break;
1907                 }
1908         case SCTP_GET_ASSOC_NUMBER:
1909                 {
1910                         uint32_t *value, cnt;
1911
1912                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1913                         cnt = 0;
1914                         SCTP_INP_RLOCK(inp);
1915                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1916                                 cnt++;
1917                         }
1918                         SCTP_INP_RUNLOCK(inp);
1919                         *value = cnt;
1920                         *optsize = sizeof(uint32_t);
1921                         break;
1922                 }
1923         case SCTP_GET_ASSOC_ID_LIST:
1924                 {
1925                         struct sctp_assoc_ids *ids;
1926                         unsigned int at, limit;
1927
1928                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1929                         at = 0;
1930                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1931                         SCTP_INP_RLOCK(inp);
1932                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1933                                 if (at < limit) {
1934                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1935                                 } else {
1936                                         error = EINVAL;
1937                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1938                                         break;
1939                                 }
1940                         }
1941                         SCTP_INP_RUNLOCK(inp);
1942                         if (error == 0) {
1943                                 ids->gaids_number_of_ids = at;
1944                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1945                         }
1946                         break;
1947                 }
1948         case SCTP_CONTEXT:
1949                 {
1950                         struct sctp_assoc_value *av;
1951
1952                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1953                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1954
1955                         if (stcb) {
1956                                 av->assoc_value = stcb->asoc.context;
1957                                 SCTP_TCB_UNLOCK(stcb);
1958                         } else {
1959                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1960                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1961                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1962                                         SCTP_INP_RLOCK(inp);
1963                                         av->assoc_value = inp->sctp_context;
1964                                         SCTP_INP_RUNLOCK(inp);
1965                                 } else {
1966                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1967                                         error = EINVAL;
1968                                 }
1969                         }
1970                         if (error == 0) {
1971                                 *optsize = sizeof(struct sctp_assoc_value);
1972                         }
1973                         break;
1974                 }
1975         case SCTP_VRF_ID:
1976                 {
1977                         uint32_t *default_vrfid;
1978
1979                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1980                         *default_vrfid = inp->def_vrf_id;
1981                         *optsize = sizeof(uint32_t);
1982                         break;
1983                 }
1984         case SCTP_GET_ASOC_VRF:
1985                 {
1986                         struct sctp_assoc_value *id;
1987
1988                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1989                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1990                         if (stcb == NULL) {
1991                                 error = EINVAL;
1992                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1993                         } else {
1994                                 id->assoc_value = stcb->asoc.vrf_id;
1995                                 *optsize = sizeof(struct sctp_assoc_value);
1996                         }
1997                         break;
1998                 }
1999         case SCTP_GET_VRF_IDS:
2000                 {
2001                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2002                         error = EOPNOTSUPP;
2003                         break;
2004                 }
2005         case SCTP_GET_NONCE_VALUES:
2006                 {
2007                         struct sctp_get_nonce_values *gnv;
2008
2009                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2010                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2011
2012                         if (stcb) {
2013                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2014                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2015                                 SCTP_TCB_UNLOCK(stcb);
2016                                 *optsize = sizeof(struct sctp_get_nonce_values);
2017                         } else {
2018                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2019                                 error = ENOTCONN;
2020                         }
2021                         break;
2022                 }
2023         case SCTP_DELAYED_SACK:
2024                 {
2025                         struct sctp_sack_info *sack;
2026
2027                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2028                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2029                         if (stcb) {
2030                                 sack->sack_delay = stcb->asoc.delayed_ack;
2031                                 sack->sack_freq = stcb->asoc.sack_freq;
2032                                 SCTP_TCB_UNLOCK(stcb);
2033                         } else {
2034                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2035                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2036                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2037                                         SCTP_INP_RLOCK(inp);
2038                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2039                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2040                                         SCTP_INP_RUNLOCK(inp);
2041                                 } else {
2042                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2043                                         error = EINVAL;
2044                                 }
2045                         }
2046                         if (error == 0) {
2047                                 *optsize = sizeof(struct sctp_sack_info);
2048                         }
2049                         break;
2050                 }
2051         case SCTP_GET_SNDBUF_USE:
2052                 {
2053                         struct sctp_sockstat *ss;
2054
2055                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2056                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2057
2058                         if (stcb) {
2059                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2060                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2061                                     stcb->asoc.size_on_all_streams);
2062                                 SCTP_TCB_UNLOCK(stcb);
2063                                 *optsize = sizeof(struct sctp_sockstat);
2064                         } else {
2065                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2066                                 error = ENOTCONN;
2067                         }
2068                         break;
2069                 }
2070         case SCTP_MAX_BURST:
2071                 {
2072                         struct sctp_assoc_value *av;
2073
2074                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2075                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2076
2077                         if (stcb) {
2078                                 av->assoc_value = stcb->asoc.max_burst;
2079                                 SCTP_TCB_UNLOCK(stcb);
2080                         } else {
2081                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2082                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2083                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2084                                         SCTP_INP_RLOCK(inp);
2085                                         av->assoc_value = inp->sctp_ep.max_burst;
2086                                         SCTP_INP_RUNLOCK(inp);
2087                                 } else {
2088                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2089                                         error = EINVAL;
2090                                 }
2091                         }
2092                         if (error == 0) {
2093                                 *optsize = sizeof(struct sctp_assoc_value);
2094                         }
2095                         break;
2096                 }
2097         case SCTP_MAXSEG:
2098                 {
2099                         struct sctp_assoc_value *av;
2100                         int ovh;
2101
2102                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2103                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2104
2105                         if (stcb) {
2106                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2107                                 SCTP_TCB_UNLOCK(stcb);
2108                         } else {
2109                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2110                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2111                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2112                                         SCTP_INP_RLOCK(inp);
2113                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2114                                                 ovh = SCTP_MED_OVERHEAD;
2115                                         } else {
2116                                                 ovh = SCTP_MED_V4_OVERHEAD;
2117                                         }
2118                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2119                                                 av->assoc_value = 0;
2120                                         else
2121                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2122                                         SCTP_INP_RUNLOCK(inp);
2123                                 } else {
2124                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2125                                         error = EINVAL;
2126                                 }
2127                         }
2128                         if (error == 0) {
2129                                 *optsize = sizeof(struct sctp_assoc_value);
2130                         }
2131                         break;
2132                 }
2133         case SCTP_GET_STAT_LOG:
2134                 error = sctp_fill_stat_log(optval, optsize);
2135                 break;
2136         case SCTP_EVENTS:
2137                 {
2138                         struct sctp_event_subscribe *events;
2139
2140                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2141                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2142                         SCTP_INP_RLOCK(inp);
2143                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2144                                 events->sctp_data_io_event = 1;
2145
2146                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2147                                 events->sctp_association_event = 1;
2148
2149                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2150                                 events->sctp_address_event = 1;
2151
2152                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2153                                 events->sctp_send_failure_event = 1;
2154
2155                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2156                                 events->sctp_peer_error_event = 1;
2157
2158                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2159                                 events->sctp_shutdown_event = 1;
2160
2161                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2162                                 events->sctp_partial_delivery_event = 1;
2163
2164                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2165                                 events->sctp_adaptation_layer_event = 1;
2166
2167                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2168                                 events->sctp_authentication_event = 1;
2169
2170                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2171                                 events->sctp_sender_dry_event = 1;
2172
2173                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2174                                 events->sctp_stream_reset_event = 1;
2175                         SCTP_INP_RUNLOCK(inp);
2176                         *optsize = sizeof(struct sctp_event_subscribe);
2177                         break;
2178                 }
2179         case SCTP_ADAPTATION_LAYER:
2180                 {
2181                         uint32_t *value;
2182
2183                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2184
2185                         SCTP_INP_RLOCK(inp);
2186                         *value = inp->sctp_ep.adaptation_layer_indicator;
2187                         SCTP_INP_RUNLOCK(inp);
2188                         *optsize = sizeof(uint32_t);
2189                         break;
2190                 }
2191         case SCTP_SET_INITIAL_DBG_SEQ:
2192                 {
2193                         uint32_t *value;
2194
2195                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2196                         SCTP_INP_RLOCK(inp);
2197                         *value = inp->sctp_ep.initial_sequence_debug;
2198                         SCTP_INP_RUNLOCK(inp);
2199                         *optsize = sizeof(uint32_t);
2200                         break;
2201                 }
2202         case SCTP_GET_LOCAL_ADDR_SIZE:
2203                 {
2204                         uint32_t *value;
2205
2206                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2207                         SCTP_INP_RLOCK(inp);
2208                         *value = sctp_count_max_addresses(inp);
2209                         SCTP_INP_RUNLOCK(inp);
2210                         *optsize = sizeof(uint32_t);
2211                         break;
2212                 }
2213         case SCTP_GET_REMOTE_ADDR_SIZE:
2214                 {
2215                         uint32_t *value;
2216                         size_t size;
2217                         struct sctp_nets *net;
2218
2219                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2220                         /* FIXME MT: change to sctp_assoc_value? */
2221                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2222
2223                         if (stcb) {
2224                                 size = 0;
2225                                 /* Count the sizes */
2226                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2227                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2228                                                 size += sizeof(struct sockaddr_in6);
2229                                         } else {
2230                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2231 #ifdef INET
2232                                                 case AF_INET:
2233                                                         size += sizeof(struct sockaddr_in);
2234                                                         break;
2235 #endif
2236 #ifdef INET6
2237                                                 case AF_INET6:
2238                                                         size += sizeof(struct sockaddr_in6);
2239                                                         break;
2240 #endif
2241                                                 default:
2242                                                         break;
2243                                                 }
2244                                         }
2245                                 }
2246                                 SCTP_TCB_UNLOCK(stcb);
2247                                 *value = (uint32_t) size;
2248                                 *optsize = sizeof(uint32_t);
2249                         } else {
2250                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2251                                 error = ENOTCONN;
2252                         }
2253                         break;
2254                 }
2255         case SCTP_GET_PEER_ADDRESSES:
2256                 /*
2257                  * Get the address information, an array is passed in to
2258                  * fill up we pack it.
2259                  */
2260                 {
2261                         size_t cpsz, left;
2262                         struct sockaddr_storage *sas;
2263                         struct sctp_nets *net;
2264                         struct sctp_getaddresses *saddr;
2265
2266                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2267                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2268
2269                         if (stcb) {
2270                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2271                                 *optsize = sizeof(struct sctp_getaddresses);
2272                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2273
2274                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2275                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2276                                                 cpsz = sizeof(struct sockaddr_in6);
2277                                         } else {
2278                                                 switch (((struct sockaddr *)&net->ro._l_addr)->sa_family) {
2279 #ifdef INET
2280                                                 case AF_INET:
2281                                                         cpsz = sizeof(struct sockaddr_in);
2282                                                         break;
2283 #endif
2284 #ifdef INET6
2285                                                 case AF_INET6:
2286                                                         cpsz = sizeof(struct sockaddr_in6);
2287                                                         break;
2288 #endif
2289                                                 default:
2290                                                         cpsz = 0;
2291                                                         break;
2292                                                 }
2293                                         }
2294                                         if (cpsz == 0) {
2295                                                 break;
2296                                         }
2297                                         if (left < cpsz) {
2298                                                 /* not enough room. */
2299                                                 break;
2300                                         }
2301 #if defined(INET) && defined(INET6)
2302                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2303                                             (((struct sockaddr *)&net->ro._l_addr)->sa_family == AF_INET)) {
2304                                                 /* Must map the address */
2305                                                 in6_sin_2_v4mapsin6((struct sockaddr_in *)&net->ro._l_addr,
2306                                                     (struct sockaddr_in6 *)sas);
2307                                         } else {
2308 #endif
2309                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2310 #if defined(INET) && defined(INET6)
2311                                         }
2312 #endif
2313                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2314
2315                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2316                                         left -= cpsz;
2317                                         *optsize += cpsz;
2318                                 }
2319                                 SCTP_TCB_UNLOCK(stcb);
2320                         } else {
2321                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2322                                 error = ENOENT;
2323                         }
2324                         break;
2325                 }
2326         case SCTP_GET_LOCAL_ADDRESSES:
2327                 {
2328                         size_t limit, actual;
2329                         struct sockaddr_storage *sas;
2330                         struct sctp_getaddresses *saddr;
2331
2332                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2333                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2334
2335                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2336                         limit = *optsize - sizeof(sctp_assoc_t);
2337                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2338                         if (stcb) {
2339                                 SCTP_TCB_UNLOCK(stcb);
2340                         }
2341                         *optsize = sizeof(struct sockaddr_storage) + actual;
2342                         break;
2343                 }
2344         case SCTP_PEER_ADDR_PARAMS:
2345                 {
2346                         struct sctp_paddrparams *paddrp;
2347                         struct sctp_nets *net;
2348
2349                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2350                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2351
2352                         net = NULL;
2353                         if (stcb) {
2354                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
2355                         } else {
2356                                 /*
2357                                  * We increment here since
2358                                  * sctp_findassociation_ep_addr() wil do a
2359                                  * decrement if it finds the stcb as long as
2360                                  * the locked tcb (last argument) is NOT a
2361                                  * TCB.. aka NULL.
2362                                  */
2363                                 SCTP_INP_INCR_REF(inp);
2364                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddrp->spp_address, &net, NULL, NULL);
2365                                 if (stcb == NULL) {
2366                                         SCTP_INP_DECR_REF(inp);
2367                                 }
2368                         }
2369                         if (stcb && (net == NULL)) {
2370                                 struct sockaddr *sa;
2371
2372                                 sa = (struct sockaddr *)&paddrp->spp_address;
2373 #ifdef INET
2374                                 if (sa->sa_family == AF_INET) {
2375                                         struct sockaddr_in *sin;
2376
2377                                         sin = (struct sockaddr_in *)sa;
2378                                         if (sin->sin_addr.s_addr) {
2379                                                 error = EINVAL;
2380                                                 SCTP_TCB_UNLOCK(stcb);
2381                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2382                                                 break;
2383                                         }
2384                                 } else
2385 #endif
2386 #ifdef INET6
2387                                 if (sa->sa_family == AF_INET6) {
2388                                         struct sockaddr_in6 *sin6;
2389
2390                                         sin6 = (struct sockaddr_in6 *)sa;
2391                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2392                                                 error = EINVAL;
2393                                                 SCTP_TCB_UNLOCK(stcb);
2394                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2395                                                 break;
2396                                         }
2397                                 } else
2398 #endif
2399                                 {
2400                                         error = EAFNOSUPPORT;
2401                                         SCTP_TCB_UNLOCK(stcb);
2402                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2403                                         break;
2404                                 }
2405                         }
2406                         if (stcb) {
2407                                 /* Applies to the specific association */
2408                                 paddrp->spp_flags = 0;
2409                                 if (net) {
2410                                         int ovh;
2411
2412                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2413                                                 ovh = SCTP_MED_OVERHEAD;
2414                                         } else {
2415                                                 ovh = SCTP_MED_V4_OVERHEAD;
2416                                         }
2417
2418                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2419                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2420                                         paddrp->spp_pathmtu = net->mtu - ovh;
2421                                         /* get flags for HB */
2422                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2423                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2424                                         } else {
2425                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2426                                         }
2427                                         /* get flags for PMTU */
2428                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2429                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2430                                         } else {
2431                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2432                                         }
2433                                         if (net->dscp & 0x01) {
2434                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2435                                                 paddrp->spp_flags |= SPP_DSCP;
2436                                         }
2437 #ifdef INET6
2438                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2439                                             (net->flowlabel & 0x80000000)) {
2440                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2441                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2442                                         }
2443 #endif
2444                                 } else {
2445                                         /*
2446                                          * No destination so return default
2447                                          * value
2448                                          */
2449                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2450                                         paddrp->spp_pathmtu = sctp_get_frag_point(stcb, &stcb->asoc);
2451                                         if (stcb->asoc.default_dscp & 0x01) {
2452                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2453                                                 paddrp->spp_flags |= SPP_DSCP;
2454                                         }
2455 #ifdef INET6
2456                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2457                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2458                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2459                                         }
2460 #endif
2461                                         /* default settings should be these */
2462                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2463                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2464                                         } else {
2465                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2466                                         }
2467                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2468                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2469                                         } else {
2470                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2471                                         }
2472                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2473                                 }
2474                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2475                                 SCTP_TCB_UNLOCK(stcb);
2476                         } else {
2477                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2478                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2479                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2480                                         /* Use endpoint defaults */
2481                                         SCTP_INP_RLOCK(inp);
2482                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2483                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2484                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2485                                         /* get inp's default */
2486                                         if (inp->sctp_ep.default_dscp & 0x01) {
2487                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2488                                                 paddrp->spp_flags |= SPP_DSCP;
2489                                         }
2490 #ifdef INET6
2491                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2492                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2493                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2494                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2495                                         }
2496 #endif
2497                                         /* can't return this */
2498                                         paddrp->spp_pathmtu = 0;
2499
2500                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2501                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2502                                         } else {
2503                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2504                                         }
2505                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2506                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2507                                         } else {
2508                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2509                                         }
2510                                         SCTP_INP_RUNLOCK(inp);
2511                                 } else {
2512                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2513                                         error = EINVAL;
2514                                 }
2515                         }
2516                         if (error == 0) {
2517                                 *optsize = sizeof(struct sctp_paddrparams);
2518                         }
2519                         break;
2520                 }
2521         case SCTP_GET_PEER_ADDR_INFO:
2522                 {
2523                         struct sctp_paddrinfo *paddri;
2524                         struct sctp_nets *net;
2525
2526                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2527                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2528
2529                         net = NULL;
2530                         if (stcb) {
2531                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddri->spinfo_address);
2532                         } else {
2533                                 /*
2534                                  * We increment here since
2535                                  * sctp_findassociation_ep_addr() wil do a
2536                                  * decrement if it finds the stcb as long as
2537                                  * the locked tcb (last argument) is NOT a
2538                                  * TCB.. aka NULL.
2539                                  */
2540                                 SCTP_INP_INCR_REF(inp);
2541                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&paddri->spinfo_address, &net, NULL, NULL);
2542                                 if (stcb == NULL) {
2543                                         SCTP_INP_DECR_REF(inp);
2544                                 }
2545                         }
2546
2547                         if ((stcb) && (net)) {
2548                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2549                                         /* It's unconfirmed */
2550                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2551                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2552                                         /* It's active */
2553                                         paddri->spinfo_state = SCTP_ACTIVE;
2554                                 } else {
2555                                         /* It's inactive */
2556                                         paddri->spinfo_state = SCTP_INACTIVE;
2557                                 }
2558                                 paddri->spinfo_cwnd = net->cwnd;
2559                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2560                                 paddri->spinfo_rto = net->RTO;
2561                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2562                                 paddri->spinfo_mtu = net->mtu;
2563                                 SCTP_TCB_UNLOCK(stcb);
2564                                 *optsize = sizeof(struct sctp_paddrinfo);
2565                         } else {
2566                                 if (stcb) {
2567                                         SCTP_TCB_UNLOCK(stcb);
2568                                 }
2569                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2570                                 error = ENOENT;
2571                         }
2572                         break;
2573                 }
2574         case SCTP_PCB_STATUS:
2575                 {
2576                         struct sctp_pcbinfo *spcb;
2577
2578                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2579                         sctp_fill_pcbinfo(spcb);
2580                         *optsize = sizeof(struct sctp_pcbinfo);
2581                         break;
2582                 }
2583         case SCTP_STATUS:
2584                 {
2585                         struct sctp_nets *net;
2586                         struct sctp_status *sstat;
2587
2588                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2589                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2590
2591                         if (stcb == NULL) {
2592                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2593                                 error = EINVAL;
2594                                 break;
2595                         }
2596                         /*
2597                          * I think passing the state is fine since
2598                          * sctp_constants.h will be available to the user
2599                          * land.
2600                          */
2601                         sstat->sstat_state = stcb->asoc.state;
2602                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2603                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2604                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2605                         /*
2606                          * We can't include chunks that have been passed to
2607                          * the socket layer. Only things in queue.
2608                          */
2609                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2610                             stcb->asoc.cnt_on_all_streams);
2611
2612
2613                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2614                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2615                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2616                         memcpy(&sstat->sstat_primary.spinfo_address,
2617                             &stcb->asoc.primary_destination->ro._l_addr,
2618                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2619                         net = stcb->asoc.primary_destination;
2620                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2621                         /*
2622                          * Again the user can get info from sctp_constants.h
2623                          * for what the state of the network is.
2624                          */
2625                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2626                                 /* It's unconfirmed */
2627                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2628                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2629                                 /* It's active */
2630                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2631                         } else {
2632                                 /* It's inactive */
2633                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2634                         }
2635                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2636                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2637                         sstat->sstat_primary.spinfo_rto = net->RTO;
2638                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2639                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2640                         SCTP_TCB_UNLOCK(stcb);
2641                         *optsize = sizeof(struct sctp_status);
2642                         break;
2643                 }
2644         case SCTP_RTOINFO:
2645                 {
2646                         struct sctp_rtoinfo *srto;
2647
2648                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2649                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2650
2651                         if (stcb) {
2652                                 srto->srto_initial = stcb->asoc.initial_rto;
2653                                 srto->srto_max = stcb->asoc.maxrto;
2654                                 srto->srto_min = stcb->asoc.minrto;
2655                                 SCTP_TCB_UNLOCK(stcb);
2656                         } else {
2657                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2658                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2659                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2660                                         SCTP_INP_RLOCK(inp);
2661                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2662                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2663                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2664                                         SCTP_INP_RUNLOCK(inp);
2665                                 } else {
2666                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2667                                         error = EINVAL;
2668                                 }
2669                         }
2670                         if (error == 0) {
2671                                 *optsize = sizeof(struct sctp_rtoinfo);
2672                         }
2673                         break;
2674                 }
2675         case SCTP_TIMEOUTS:
2676                 {
2677                         struct sctp_timeouts *stimo;
2678
2679                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2680                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2681
2682                         if (stcb) {
2683                                 stimo->stimo_init = stcb->asoc.timoinit;
2684                                 stimo->stimo_data = stcb->asoc.timodata;
2685                                 stimo->stimo_sack = stcb->asoc.timosack;
2686                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2687                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2688                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2689                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2690                                 SCTP_TCB_UNLOCK(stcb);
2691                                 *optsize = sizeof(struct sctp_timeouts);
2692                         } else {
2693                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2694                                 error = EINVAL;
2695                         }
2696                         break;
2697                 }
2698         case SCTP_ASSOCINFO:
2699                 {
2700                         struct sctp_assocparams *sasoc;
2701
2702                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2703                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2704
2705                         if (stcb) {
2706                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2707                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2708                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2709                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2710                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2711                                 SCTP_TCB_UNLOCK(stcb);
2712                         } else {
2713                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2714                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2715                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2716                                         SCTP_INP_RLOCK(inp);
2717                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2718                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2719                                         sasoc->sasoc_number_peer_destinations = 0;
2720                                         sasoc->sasoc_peer_rwnd = 0;
2721                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2722                                         SCTP_INP_RUNLOCK(inp);
2723                                 } else {
2724                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2725                                         error = EINVAL;
2726                                 }
2727                         }
2728                         if (error == 0) {
2729                                 *optsize = sizeof(struct sctp_assocparams);
2730                         }
2731                         break;
2732                 }
2733         case SCTP_DEFAULT_SEND_PARAM:
2734                 {
2735                         struct sctp_sndrcvinfo *s_info;
2736
2737                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2738                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2739
2740                         if (stcb) {
2741                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2742                                 SCTP_TCB_UNLOCK(stcb);
2743                         } else {
2744                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2745                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2746                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2747                                         SCTP_INP_RLOCK(inp);
2748                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2749                                         SCTP_INP_RUNLOCK(inp);
2750                                 } else {
2751                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2752                                         error = EINVAL;
2753                                 }
2754                         }
2755                         if (error == 0) {
2756                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2757                         }
2758                         break;
2759                 }
2760         case SCTP_INITMSG:
2761                 {
2762                         struct sctp_initmsg *sinit;
2763
2764                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2765                         SCTP_INP_RLOCK(inp);
2766                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2767                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2768                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2769                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2770                         SCTP_INP_RUNLOCK(inp);
2771                         *optsize = sizeof(struct sctp_initmsg);
2772                         break;
2773                 }
2774         case SCTP_PRIMARY_ADDR:
2775                 /* we allow a "get" operation on this */
2776                 {
2777                         struct sctp_setprim *ssp;
2778
2779                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2780                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2781
2782                         if (stcb) {
2783                                 /* simply copy out the sockaddr_storage... */
2784                                 int len;
2785
2786                                 len = *optsize;
2787                                 if (len > stcb->asoc.primary_destination->ro._l_addr.sa.sa_len)
2788                                         len = stcb->asoc.primary_destination->ro._l_addr.sa.sa_len;
2789
2790                                 memcpy(&ssp->ssp_addr,
2791                                     &stcb->asoc.primary_destination->ro._l_addr,
2792                                     len);
2793                                 SCTP_TCB_UNLOCK(stcb);
2794                                 *optsize = sizeof(struct sctp_setprim);
2795                         } else {
2796                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2797                                 error = EINVAL;
2798                         }
2799                         break;
2800                 }
2801         case SCTP_HMAC_IDENT:
2802                 {
2803                         struct sctp_hmacalgo *shmac;
2804                         sctp_hmaclist_t *hmaclist;
2805                         uint32_t size;
2806                         int i;
2807
2808                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2809
2810                         SCTP_INP_RLOCK(inp);
2811                         hmaclist = inp->sctp_ep.local_hmacs;
2812                         if (hmaclist == NULL) {
2813                                 /* no HMACs to return */
2814                                 *optsize = sizeof(*shmac);
2815                                 SCTP_INP_RUNLOCK(inp);
2816                                 break;
2817                         }
2818                         /* is there room for all of the hmac ids? */
2819                         size = sizeof(*shmac) + (hmaclist->num_algo *
2820                             sizeof(shmac->shmac_idents[0]));
2821                         if ((size_t)(*optsize) < size) {
2822                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2823                                 error = EINVAL;
2824                                 SCTP_INP_RUNLOCK(inp);
2825                                 break;
2826                         }
2827                         /* copy in the list */
2828                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2829                         for (i = 0; i < hmaclist->num_algo; i++) {
2830                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2831                         }
2832                         SCTP_INP_RUNLOCK(inp);
2833                         *optsize = size;
2834                         break;
2835                 }
2836         case SCTP_AUTH_ACTIVE_KEY:
2837                 {
2838                         struct sctp_authkeyid *scact;
2839
2840                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2841                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2842
2843                         if (stcb) {
2844                                 /* get the active key on the assoc */
2845                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2846                                 SCTP_TCB_UNLOCK(stcb);
2847                         } else {
2848                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2849                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2850                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2851                                         /* get the endpoint active key */
2852                                         SCTP_INP_RLOCK(inp);
2853                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2854                                         SCTP_INP_RUNLOCK(inp);
2855                                 } else {
2856                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2857                                         error = EINVAL;
2858                                 }
2859                         }
2860                         if (error == 0) {
2861                                 *optsize = sizeof(struct sctp_authkeyid);
2862                         }
2863                         break;
2864                 }
2865         case SCTP_LOCAL_AUTH_CHUNKS:
2866                 {
2867                         struct sctp_authchunks *sac;
2868                         sctp_auth_chklist_t *chklist = NULL;
2869                         size_t size = 0;
2870
2871                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2872                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2873
2874                         if (stcb) {
2875                                 /* get off the assoc */
2876                                 chklist = stcb->asoc.local_auth_chunks;
2877                                 /* is there enough space? */
2878                                 size = sctp_auth_get_chklist_size(chklist);
2879                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2880                                         error = EINVAL;
2881                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2882                                 } else {
2883                                         /* copy in the chunks */
2884                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2885                                         *optsize = sizeof(struct sctp_authchunks) + size;
2886                                 }
2887                                 SCTP_TCB_UNLOCK(stcb);
2888                         } else {
2889                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2890                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2891                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2892                                         /* get off the endpoint */
2893                                         SCTP_INP_RLOCK(inp);
2894                                         chklist = inp->sctp_ep.local_auth_chunks;
2895                                         /* is there enough space? */
2896                                         size = sctp_auth_get_chklist_size(chklist);
2897                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2898                                                 error = EINVAL;
2899                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2900                                         } else {
2901                                                 /* copy in the chunks */
2902                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2903                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2904                                         }
2905                                         SCTP_INP_RUNLOCK(inp);
2906                                 } else {
2907                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2908                                         error = EINVAL;
2909                                 }
2910                         }
2911                         break;
2912                 }
2913         case SCTP_PEER_AUTH_CHUNKS:
2914                 {
2915                         struct sctp_authchunks *sac;
2916                         sctp_auth_chklist_t *chklist = NULL;
2917                         size_t size = 0;
2918
2919                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2920                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2921
2922                         if (stcb) {
2923                                 /* get off the assoc */
2924                                 chklist = stcb->asoc.peer_auth_chunks;
2925                                 /* is there enough space? */
2926                                 size = sctp_auth_get_chklist_size(chklist);
2927                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2928                                         error = EINVAL;
2929                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2930                                 } else {
2931                                         /* copy in the chunks */
2932                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2933                                         *optsize = sizeof(struct sctp_authchunks) + size;
2934                                 }
2935                                 SCTP_TCB_UNLOCK(stcb);
2936                         } else {
2937                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2938                                 error = ENOENT;
2939                         }
2940                         break;
2941                 }
2942         case SCTP_EVENT:
2943                 {
2944                         struct sctp_event *event;
2945                         uint32_t event_type;
2946
2947                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
2948                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
2949
2950                         switch (event->se_type) {
2951                         case SCTP_ASSOC_CHANGE:
2952                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
2953                                 break;
2954                         case SCTP_PEER_ADDR_CHANGE:
2955                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
2956                                 break;
2957                         case SCTP_REMOTE_ERROR:
2958                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
2959                                 break;
2960                         case SCTP_SEND_FAILED:
2961                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
2962                                 break;
2963                         case SCTP_SHUTDOWN_EVENT:
2964                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
2965                                 break;
2966                         case SCTP_ADAPTATION_INDICATION:
2967                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
2968                                 break;
2969                         case SCTP_PARTIAL_DELIVERY_EVENT:
2970                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
2971                                 break;
2972                         case SCTP_AUTHENTICATION_EVENT:
2973                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
2974                                 break;
2975                         case SCTP_STREAM_RESET_EVENT:
2976                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
2977                                 break;
2978                         case SCTP_SENDER_DRY_EVENT:
2979                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
2980                                 break;
2981                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
2982                                 event_type = 0;
2983                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
2984                                 error = ENOTSUP;
2985                                 break;
2986                         default:
2987                                 event_type = 0;
2988                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2989                                 error = EINVAL;
2990                                 break;
2991                         }
2992                         if (event_type > 0) {
2993                                 if (stcb) {
2994                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
2995                                         SCTP_TCB_UNLOCK(stcb);
2996                                 } else {
2997                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2998                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2999                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3000                                                 SCTP_INP_RLOCK(inp);
3001                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3002                                                 SCTP_INP_RUNLOCK(inp);
3003                                         } else {
3004                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3005                                                 error = EINVAL;
3006                                         }
3007                                 }
3008                         }
3009                         if (error == 0) {
3010                                 *optsize = sizeof(struct sctp_event);
3011                         }
3012                         break;
3013                 }
3014         case SCTP_RECVRCVINFO:
3015                 {
3016                         int onoff;
3017
3018                         if (*optsize < sizeof(int)) {
3019                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3020                                 error = EINVAL;
3021                         } else {
3022                                 SCTP_INP_RLOCK(inp);
3023                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3024                                 SCTP_INP_RUNLOCK(inp);
3025                         }
3026                         if (error == 0) {
3027                                 /* return the option value */
3028                                 *(int *)optval = onoff;
3029                                 *optsize = sizeof(int);
3030                         }
3031                         break;
3032                 }
3033         case SCTP_RECVNXTINFO:
3034                 {
3035                         int onoff;
3036
3037                         if (*optsize < sizeof(int)) {
3038                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3039                                 error = EINVAL;
3040                         } else {
3041                                 SCTP_INP_RLOCK(inp);
3042                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3043                                 SCTP_INP_RUNLOCK(inp);
3044                         }
3045                         if (error == 0) {
3046                                 /* return the option value */
3047                                 *(int *)optval = onoff;
3048                                 *optsize = sizeof(int);
3049                         }
3050                         break;
3051                 }
3052         case SCTP_DEFAULT_SNDINFO:
3053                 {
3054                         struct sctp_sndinfo *info;
3055
3056                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3057                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3058
3059                         if (stcb) {
3060                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3061                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3062                                 info->snd_flags &= 0xfff0;
3063                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3064                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3065                                 SCTP_TCB_UNLOCK(stcb);
3066                         } else {
3067                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3068                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3069                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3070                                         SCTP_INP_RLOCK(inp);
3071                                         info->snd_sid = inp->def_send.sinfo_stream;
3072                                         info->snd_flags = inp->def_send.sinfo_flags;
3073                                         info->snd_flags &= 0xfff0;
3074                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3075                                         info->snd_context = inp->def_send.sinfo_context;
3076                                         SCTP_INP_RUNLOCK(inp);
3077                                 } else {
3078                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3079                                         error = EINVAL;
3080                                 }
3081                         }
3082                         if (error == 0) {
3083                                 *optsize = sizeof(struct sctp_sndinfo);
3084                         }
3085                         break;
3086                 }
3087         case SCTP_DEFAULT_PRINFO:
3088                 {
3089                         struct sctp_default_prinfo *info;
3090
3091                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3092                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3093
3094                         if (stcb) {
3095                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3096                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3097                                 SCTP_TCB_UNLOCK(stcb);
3098                         } else {
3099                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3100                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3101                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3102                                         SCTP_INP_RLOCK(inp);
3103                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3104                                         info->pr_value = inp->def_send.sinfo_timetolive;
3105                                         SCTP_INP_RUNLOCK(inp);
3106                                 } else {
3107                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3108                                         error = EINVAL;
3109                                 }
3110                         }
3111                         if (error == 0) {
3112                                 *optsize = sizeof(struct sctp_default_prinfo);
3113                         }
3114                         break;
3115                 }
3116         case SCTP_PEER_ADDR_THLDS:
3117                 {
3118                         struct sctp_paddrthlds *thlds;
3119                         struct sctp_nets *net;
3120
3121                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3122                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3123
3124                         net = NULL;
3125                         if (stcb) {
3126                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_address);
3127                         } else {
3128                                 /*
3129                                  * We increment here since
3130                                  * sctp_findassociation_ep_addr() wil do a
3131                                  * decrement if it finds the stcb as long as
3132                                  * the locked tcb (last argument) is NOT a
3133                                  * TCB.. aka NULL.
3134                                  */
3135                                 SCTP_INP_INCR_REF(inp);
3136                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&thlds->spt_address, &net, NULL, NULL);
3137                                 if (stcb == NULL) {
3138                                         SCTP_INP_DECR_REF(inp);
3139                                 }
3140                         }
3141                         if (stcb && (net == NULL)) {
3142                                 struct sockaddr *sa;
3143
3144                                 sa = (struct sockaddr *)&thlds->spt_address;
3145 #ifdef INET
3146                                 if (sa->sa_family == AF_INET) {
3147                                         struct sockaddr_in *sin;
3148
3149                                         sin = (struct sockaddr_in *)sa;
3150                                         if (sin->sin_addr.s_addr) {
3151                                                 error = EINVAL;
3152                                                 SCTP_TCB_UNLOCK(stcb);
3153                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3154                                                 break;
3155                                         }
3156                                 } else
3157 #endif
3158 #ifdef INET6
3159                                 if (sa->sa_family == AF_INET6) {
3160                                         struct sockaddr_in6 *sin6;
3161
3162                                         sin6 = (struct sockaddr_in6 *)sa;
3163                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3164                                                 error = EINVAL;
3165                                                 SCTP_TCB_UNLOCK(stcb);
3166                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3167                                                 break;
3168                                         }
3169                                 } else
3170 #endif
3171                                 {
3172                                         error = EAFNOSUPPORT;
3173                                         SCTP_TCB_UNLOCK(stcb);
3174                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3175                                         break;
3176                                 }
3177                         }
3178                         if (stcb) {
3179                                 if (net) {
3180                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3181                                         thlds->spt_pathpfthld = net->pf_threshold;
3182                                 } else {
3183                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3184                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3185                                 }
3186                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3187                                 SCTP_TCB_UNLOCK(stcb);
3188                         } else {
3189                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3190                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3191                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3192                                         /* Use endpoint defaults */
3193                                         SCTP_INP_RLOCK(inp);
3194                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3195                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3196                                         SCTP_INP_RUNLOCK(inp);
3197                                 } else {
3198                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3199                                         error = EINVAL;
3200                                 }
3201                         }
3202                         if (error == 0) {
3203                                 *optsize = sizeof(struct sctp_paddrthlds);
3204                         }
3205                         break;
3206                 }
3207         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3208                 {
3209                         struct sctp_udpencaps *encaps;
3210                         struct sctp_nets *net;
3211
3212                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3213                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3214
3215                         if (stcb) {
3216                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
3217                         } else {
3218                                 /*
3219                                  * We increment here since
3220                                  * sctp_findassociation_ep_addr() wil do a
3221                                  * decrement if it finds the stcb as long as
3222                                  * the locked tcb (last argument) is NOT a
3223                                  * TCB.. aka NULL.
3224                                  */
3225                                 net = NULL;
3226                                 SCTP_INP_INCR_REF(inp);
3227                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
3228                                 if (stcb == NULL) {
3229                                         SCTP_INP_DECR_REF(inp);
3230                                 }
3231                         }
3232                         if (stcb && (net == NULL)) {
3233                                 struct sockaddr *sa;
3234
3235                                 sa = (struct sockaddr *)&encaps->sue_address;
3236 #ifdef INET
3237                                 if (sa->sa_family == AF_INET) {
3238                                         struct sockaddr_in *sin;
3239
3240                                         sin = (struct sockaddr_in *)sa;
3241                                         if (sin->sin_addr.s_addr) {
3242                                                 error = EINVAL;
3243                                                 SCTP_TCB_UNLOCK(stcb);
3244                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3245                                                 break;
3246                                         }
3247                                 } else
3248 #endif
3249 #ifdef INET6
3250                                 if (sa->sa_family == AF_INET6) {
3251                                         struct sockaddr_in6 *sin6;
3252
3253                                         sin6 = (struct sockaddr_in6 *)sa;
3254                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3255                                                 error = EINVAL;
3256                                                 SCTP_TCB_UNLOCK(stcb);
3257                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3258                                                 break;
3259                                         }
3260                                 } else
3261 #endif
3262                                 {
3263                                         error = EAFNOSUPPORT;
3264                                         SCTP_TCB_UNLOCK(stcb);
3265                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3266                                         break;
3267                                 }
3268                         }
3269                         if (stcb) {
3270                                 if (net) {
3271                                         encaps->sue_port = net->port;
3272                                 } else {
3273                                         encaps->sue_port = stcb->asoc.port;
3274                                 }
3275                                 SCTP_TCB_UNLOCK(stcb);
3276                         } else {
3277                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3278                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3279                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3280                                         SCTP_INP_RLOCK(inp);
3281                                         encaps->sue_port = inp->sctp_ep.port;
3282                                         SCTP_INP_RUNLOCK(inp);
3283                                 } else {
3284                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3285                                         error = EINVAL;
3286                                 }
3287                         }
3288                         if (error == 0) {
3289                                 *optsize = sizeof(struct sctp_paddrparams);
3290                         }
3291                         break;
3292                 }
3293         default:
3294                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3295                 error = ENOPROTOOPT;
3296                 break;
3297         }                       /* end switch (sopt->sopt_name) */
3298         if (error) {
3299                 *optsize = 0;
3300         }
3301         return (error);
3302 }
3303
3304 static int
3305 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3306     void *p)
3307 {
3308         int error, set_opt;
3309         uint32_t *mopt;
3310         struct sctp_tcb *stcb = NULL;
3311         struct sctp_inpcb *inp = NULL;
3312         uint32_t vrf_id;
3313
3314         if (optval == NULL) {
3315                 SCTP_PRINTF("optval is NULL\n");
3316                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3317                 return (EINVAL);
3318         }
3319         inp = (struct sctp_inpcb *)so->so_pcb;
3320         if (inp == NULL) {
3321                 SCTP_PRINTF("inp is NULL?\n");
3322                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3323                 return (EINVAL);
3324         }
3325         vrf_id = inp->def_vrf_id;
3326
3327         error = 0;
3328         switch (optname) {
3329         case SCTP_NODELAY:
3330         case SCTP_AUTOCLOSE:
3331         case SCTP_AUTO_ASCONF:
3332         case SCTP_EXPLICIT_EOR:
3333         case SCTP_DISABLE_FRAGMENTS:
3334         case SCTP_USE_EXT_RCVINFO:
3335         case SCTP_I_WANT_MAPPED_V4_ADDR:
3336                 /* copy in the option value */
3337                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3338                 set_opt = 0;
3339                 if (error)
3340                         break;
3341                 switch (optname) {
3342                 case SCTP_DISABLE_FRAGMENTS:
3343                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3344                         break;
3345                 case SCTP_AUTO_ASCONF:
3346                         /*
3347                          * NOTE: we don't really support this flag
3348                          */
3349                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3350                                 /* only valid for bound all sockets */
3351                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3352                                     (*mopt != 0)) {
3353                                         /* forbidden by admin */
3354                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3355                                         return (EPERM);
3356                                 }
3357                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3358                         } else {
3359                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3360                                 return (EINVAL);
3361                         }
3362                         break;
3363                 case SCTP_EXPLICIT_EOR:
3364                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3365                         break;
3366                 case SCTP_USE_EXT_RCVINFO:
3367                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3368                         break;
3369                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3370                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3371                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3372                         } else {
3373                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3374                                 return (EINVAL);
3375                         }
3376                         break;
3377                 case SCTP_NODELAY:
3378                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3379                         break;
3380                 case SCTP_AUTOCLOSE:
3381                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3382                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3383                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3384                                 return (EINVAL);
3385                         }
3386                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3387                         /*
3388                          * The value is in ticks. Note this does not effect
3389                          * old associations, only new ones.
3390                          */
3391                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3392                         break;
3393                 }
3394                 SCTP_INP_WLOCK(inp);
3395                 if (*mopt != 0) {
3396                         sctp_feature_on(inp, set_opt);
3397                 } else {
3398                         sctp_feature_off(inp, set_opt);
3399                 }
3400                 SCTP_INP_WUNLOCK(inp);
3401                 break;
3402         case SCTP_REUSE_PORT:
3403                 {
3404                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3405                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3406                                 /* Can't set it after we are bound */
3407                                 error = EINVAL;
3408                                 break;
3409                         }
3410                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3411                                 /* Can't do this for a 1-m socket */
3412                                 error = EINVAL;
3413                                 break;
3414                         }
3415                         if (optval)
3416                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3417                         else
3418                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3419                         break;
3420                 }
3421         case SCTP_PARTIAL_DELIVERY_POINT:
3422                 {
3423                         uint32_t *value;
3424
3425                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3426                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3427                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3428                                 error = EINVAL;
3429                                 break;
3430                         }
3431                         inp->partial_delivery_point = *value;
3432                         break;
3433                 }
3434         case SCTP_FRAGMENT_INTERLEAVE:
3435                 /* not yet until we re-write sctp_recvmsg() */
3436                 {
3437                         uint32_t *level;
3438
3439                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3440                         if (*level == SCTP_FRAG_LEVEL_2) {
3441                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3442                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3443                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3444                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3445                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3446                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3447                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3448                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3449
3450                         } else {
3451                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3452                                 error = EINVAL;
3453                         }
3454                         break;
3455                 }
3456         case SCTP_CMT_ON_OFF:
3457                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3458                         struct sctp_assoc_value *av;
3459
3460                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3461                         if (av->assoc_value > SCTP_CMT_MAX) {
3462                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3463                                 error = EINVAL;
3464                                 break;
3465                         }
3466                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3467                         if (stcb) {
3468                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3469                                 SCTP_TCB_UNLOCK(stcb);
3470                         } else {
3471                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3472                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3473                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3474                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3475                                         SCTP_INP_WLOCK(inp);
3476                                         inp->sctp_cmt_on_off = av->assoc_value;
3477                                         SCTP_INP_WUNLOCK(inp);
3478                                 }
3479                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3480                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3481                                         SCTP_INP_RLOCK(inp);
3482                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3483                                                 SCTP_TCB_LOCK(stcb);
3484                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3485                                                 SCTP_TCB_UNLOCK(stcb);
3486                                         }
3487                                         SCTP_INP_RUNLOCK(inp);
3488                                 }
3489                         }
3490                 } else {
3491                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3492                         error = ENOPROTOOPT;
3493                 }
3494                 break;
3495         case SCTP_PLUGGABLE_CC:
3496                 {
3497                         struct sctp_assoc_value *av;
3498                         struct sctp_nets *net;
3499
3500                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3501                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3502                             (av->assoc_value != SCTP_CC_HSTCP) &&
3503                             (av->assoc_value != SCTP_CC_HTCP) &&
3504                             (av->assoc_value != SCTP_CC_RTCC)) {
3505                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3506                                 error = EINVAL;
3507                                 break;
3508                         }
3509                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3510                         if (stcb) {
3511                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3512                                 stcb->asoc.congestion_control_module = av->assoc_value;
3513                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3514                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3515                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3516                                         }
3517                                 }
3518                                 SCTP_TCB_UNLOCK(stcb);
3519                         } else {
3520                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3521                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3522                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3523                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3524                                         SCTP_INP_WLOCK(inp);
3525                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3526                                         SCTP_INP_WUNLOCK(inp);
3527                                 }
3528                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3529                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3530                                         SCTP_INP_RLOCK(inp);
3531                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3532                                                 SCTP_TCB_LOCK(stcb);
3533                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3534                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3535                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3536                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3537                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3538                                                         }
3539                                                 }
3540                                                 SCTP_TCB_UNLOCK(stcb);
3541                                         }
3542                                         SCTP_INP_RUNLOCK(inp);
3543                                 }
3544                         }
3545                         break;
3546                 }
3547         case SCTP_CC_OPTION:
3548                 {
3549                         struct sctp_cc_option *cc_opt;
3550
3551                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3552                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3553                         if (stcb == NULL) {
3554                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
3555                                         SCTP_INP_RLOCK(inp);
3556                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3557                                                 SCTP_TCB_LOCK(stcb);
3558                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
3559                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
3560                                                 }
3561                                                 SCTP_TCB_UNLOCK(stcb);
3562                                         }
3563                                         SCTP_INP_RUNLOCK(inp);
3564                                 } else {
3565                                         error = EINVAL;
3566                                 }
3567                         } else {
3568                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
3569                                         error = ENOTSUP;
3570                                 } else {
3571                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
3572                                             cc_opt);
3573                                 }
3574                                 SCTP_TCB_UNLOCK(stcb);
3575                         }
3576                         break;
3577                 }
3578         case SCTP_PLUGGABLE_SS:
3579                 {
3580                         struct sctp_assoc_value *av;
3581
3582                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3583                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
3584                             (av->assoc_value != SCTP_SS_DEFAULT) &&
3585                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
3586                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
3587                             (av->assoc_value != SCTP_SS_PRIORITY) &&
3588                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
3589                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
3590                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3591                                 error = EINVAL;
3592                                 break;
3593                         }
3594                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3595                         if (stcb) {
3596                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3597                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3598                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3599                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3600                                 SCTP_TCB_UNLOCK(stcb);
3601                         } else {
3602                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3603                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3604                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3605                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3606                                         SCTP_INP_WLOCK(inp);
3607                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
3608                                         SCTP_INP_WUNLOCK(inp);
3609                                 }
3610                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3611                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3612                                         SCTP_INP_RLOCK(inp);
3613                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3614                                                 SCTP_TCB_LOCK(stcb);
3615                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
3616                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
3617                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
3618                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
3619                                                 SCTP_TCB_UNLOCK(stcb);
3620                                         }
3621                                         SCTP_INP_RUNLOCK(inp);
3622                                 }
3623                         }
3624                         break;
3625                 }
3626         case SCTP_SS_VALUE:
3627                 {
3628                         struct sctp_stream_value *av;
3629
3630                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
3631                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3632                         if (stcb) {
3633                                 if (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
3634                                     av->stream_value) < 0) {
3635                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3636                                         error = EINVAL;
3637                                 }
3638                                 SCTP_TCB_UNLOCK(stcb);
3639                         } else {
3640                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
3641                                         SCTP_INP_RLOCK(inp);
3642                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3643                                                 SCTP_TCB_LOCK(stcb);
3644                                                 stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
3645                                                     &stcb->asoc,
3646                                                     &stcb->asoc.strmout[av->stream_id],
3647                                                     av->stream_value);
3648                                                 SCTP_TCB_UNLOCK(stcb);
3649                                         }
3650                                         SCTP_INP_RUNLOCK(inp);
3651
3652                                 } else {
3653                                         /*
3654                                          * Can't set stream value without
3655                                          * association
3656                                          */
3657                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3658                                         error = EINVAL;
3659                                 }
3660                         }
3661                         break;
3662                 }
3663         case SCTP_CLR_STAT_LOG:
3664                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3665                 error = EOPNOTSUPP;
3666                 break;
3667         case SCTP_CONTEXT:
3668                 {
3669                         struct sctp_assoc_value *av;
3670
3671                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3672                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3673
3674                         if (stcb) {
3675                                 stcb->asoc.context = av->assoc_value;
3676                                 SCTP_TCB_UNLOCK(stcb);
3677                         } else {
3678                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3679                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3680                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3681                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3682                                         SCTP_INP_WLOCK(inp);
3683                                         inp->sctp_context = av->assoc_value;
3684                                         SCTP_INP_WUNLOCK(inp);
3685                                 }
3686                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3687                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3688                                         SCTP_INP_RLOCK(inp);
3689                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3690                                                 SCTP_TCB_LOCK(stcb);
3691                                                 stcb->asoc.context = av->assoc_value;
3692                                                 SCTP_TCB_UNLOCK(stcb);
3693                                         }
3694                                         SCTP_INP_RUNLOCK(inp);
3695                                 }
3696                         }
3697                         break;
3698                 }
3699         case SCTP_VRF_ID:
3700                 {
3701                         uint32_t *default_vrfid;
3702
3703                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
3704                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
3705                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3706                                 error = EINVAL;
3707                                 break;
3708                         }
3709                         inp->def_vrf_id = *default_vrfid;
3710                         break;
3711                 }
3712         case SCTP_DEL_VRF_ID:
3713                 {
3714                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3715                         error = EOPNOTSUPP;
3716                         break;
3717                 }
3718         case SCTP_ADD_VRF_ID:
3719                 {
3720                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
3721                         error = EOPNOTSUPP;
3722                         break;
3723                 }
3724         case SCTP_DELAYED_SACK:
3725                 {
3726                         struct sctp_sack_info *sack;
3727
3728                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
3729                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
3730                         if (sack->sack_delay) {
3731                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
3732                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
3733                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
3734                                         sack->sack_delay = TICKS_TO_MSEC(1);
3735                                 }
3736                         }
3737                         if (stcb) {
3738                                 if (sack->sack_delay) {
3739                                         stcb->asoc.delayed_ack = sack->sack_delay;
3740                                 }
3741                                 if (sack->sack_freq) {
3742                                         stcb->asoc.sack_freq = sack->sack_freq;
3743                                 }
3744                                 SCTP_TCB_UNLOCK(stcb);
3745                         } else {
3746                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3747                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3748                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
3749                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3750                                         SCTP_INP_WLOCK(inp);
3751                                         if (sack->sack_delay) {
3752                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
3753                                         }
3754                                         if (sack->sack_freq) {
3755                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
3756                                         }
3757                                         SCTP_INP_WUNLOCK(inp);
3758                                 }
3759                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
3760                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
3761                                         SCTP_INP_RLOCK(inp);
3762                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3763                                                 SCTP_TCB_LOCK(stcb);
3764                                                 if (sack->sack_delay) {
3765                                                         stcb->asoc.delayed_ack = sack->sack_delay;
3766                                                 }
3767                                                 if (sack->sack_freq) {
3768                                                         stcb->asoc.sack_freq = sack->sack_freq;
3769                                                 }
3770                                                 SCTP_TCB_UNLOCK(stcb);
3771                                         }
3772                                         SCTP_INP_RUNLOCK(inp);
3773                                 }
3774                         }
3775                         break;
3776                 }
3777         case SCTP_AUTH_CHUNK:
3778                 {
3779                         struct sctp_authchunk *sauth;
3780
3781                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
3782
3783                         SCTP_INP_WLOCK(inp);
3784                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
3785                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3786                                 error = EINVAL;
3787                         }
3788                         SCTP_INP_WUNLOCK(inp);
3789                         break;
3790                 }
3791         case SCTP_AUTH_KEY:
3792                 {
3793                         struct sctp_authkey *sca;
3794                         struct sctp_keyhead *shared_keys;
3795                         sctp_sharedkey_t *shared_key;
3796                         sctp_key_t *key = NULL;
3797                         size_t size;
3798
3799                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
3800                         if (sca->sca_keylength == 0) {
3801                                 size = optsize - sizeof(struct sctp_authkey);
3802                         } else {
3803                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
3804                                         size = sca->sca_keylength;
3805                                 } else {
3806                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3807                                         error = EINVAL;
3808                                         break;
3809                                 }
3810                         }
3811                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
3812
3813                         if (stcb) {
3814                                 shared_keys = &stcb->asoc.shared_keys;
3815                                 /* clear the cached keys for this key id */
3816                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3817                                 /*
3818                                  * create the new shared key and
3819                                  * insert/replace it
3820                                  */
3821                                 if (size > 0) {
3822                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3823                                         if (key == NULL) {
3824                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3825                                                 error = ENOMEM;
3826                                                 SCTP_TCB_UNLOCK(stcb);
3827                                                 break;
3828                                         }
3829                                 }
3830                                 shared_key = sctp_alloc_sharedkey();
3831                                 if (shared_key == NULL) {
3832                                         sctp_free_key(key);
3833                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3834                                         error = ENOMEM;
3835                                         SCTP_TCB_UNLOCK(stcb);
3836                                         break;
3837                                 }
3838                                 shared_key->key = key;
3839                                 shared_key->keyid = sca->sca_keynumber;
3840                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3841                                 SCTP_TCB_UNLOCK(stcb);
3842                         } else {
3843                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3844                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3845                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
3846                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3847                                         SCTP_INP_WLOCK(inp);
3848                                         shared_keys = &inp->sctp_ep.shared_keys;
3849                                         /*
3850                                          * clear the cached keys on all
3851                                          * assocs for this key id
3852                                          */
3853                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
3854                                         /*
3855                                          * create the new shared key and
3856                                          * insert/replace it
3857                                          */
3858                                         if (size > 0) {
3859                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
3860                                                 if (key == NULL) {
3861                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3862                                                         error = ENOMEM;
3863                                                         SCTP_INP_WUNLOCK(inp);
3864                                                         break;
3865                                                 }
3866                                         }
3867                                         shared_key = sctp_alloc_sharedkey();
3868                                         if (shared_key == NULL) {
3869                                                 sctp_free_key(key);
3870                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3871                                                 error = ENOMEM;
3872                                                 SCTP_INP_WUNLOCK(inp);
3873                                                 break;
3874                                         }
3875                                         shared_key->key = key;
3876                                         shared_key->keyid = sca->sca_keynumber;
3877                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
3878                                         SCTP_INP_WUNLOCK(inp);
3879                                 }
3880                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
3881                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
3882                                         SCTP_INP_RLOCK(inp);
3883                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3884                                                 SCTP_TCB_LOCK(stcb);
3885                                                 shared_keys = &stcb->asoc.shared_keys;
3886                                                 /*
3887                                                  * clear the cached keys for
3888                                                  * this key id
3889                                                  */
3890                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
3891                                                 /*
3892                                                  * create the new shared key
3893                                                  * and insert/replace it
3894                                                  */
3895                                                 if (size > 0) {
3896                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
3897                                                         if (key == NULL) {
3898                                                                 SCTP_TCB_UNLOCK(stcb);
3899                                                                 continue;
3900                                                         }
3901                                                 }
3902                                                 shared_key = sctp_alloc_sharedkey();
3903                                                 if (shared_key == NULL) {
3904                                                         sctp_free_key(key);
3905                                                         SCTP_TCB_UNLOCK(stcb);
3906                                                         continue;
3907                                                 }
3908                                                 shared_key->key = key;
3909                                                 shared_key->keyid = sca->sca_keynumber;
3910                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
3911                                                 SCTP_TCB_UNLOCK(stcb);
3912                                         }
3913                                         SCTP_INP_RUNLOCK(inp);
3914                                 }
3915                         }
3916                         break;
3917                 }
3918         case SCTP_HMAC_IDENT:
3919                 {
3920                         struct sctp_hmacalgo *shmac;
3921                         sctp_hmaclist_t *hmaclist;
3922                         uint16_t hmacid;
3923                         uint32_t i;
3924                         size_t found;
3925
3926                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
3927                         if (optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) {
3928                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3929                                 error = EINVAL;
3930                                 break;
3931                         }
3932                         hmaclist = sctp_alloc_hmaclist(shmac->shmac_number_of_idents);
3933                         if (hmaclist == NULL) {
3934                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
3935                                 error = ENOMEM;
3936                                 break;
3937                         }
3938                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
3939                                 hmacid = shmac->shmac_idents[i];
3940                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
3941                                          /* invalid HMACs were found */ ;
3942                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3943                                         error = EINVAL;
3944                                         sctp_free_hmaclist(hmaclist);
3945                                         goto sctp_set_hmac_done;
3946                                 }
3947                         }
3948                         found = 0;
3949                         for (i = 0; i < hmaclist->num_algo; i++) {
3950                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
3951                                         /* already in list */
3952                                         found = 1;
3953                                 }
3954                         }
3955                         if (!found) {
3956                                 sctp_free_hmaclist(hmaclist);
3957                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3958                                 error = EINVAL;
3959                                 break;
3960                         }
3961                         /* set it on the endpoint */
3962                         SCTP_INP_WLOCK(inp);
3963                         if (inp->sctp_ep.local_hmacs)
3964                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
3965                         inp->sctp_ep.local_hmacs = hmaclist;
3966                         SCTP_INP_WUNLOCK(inp);
3967         sctp_set_hmac_done:
3968                         break;
3969                 }
3970         case SCTP_AUTH_ACTIVE_KEY:
3971                 {
3972                         struct sctp_authkeyid *scact;
3973
3974                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
3975                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
3976
3977                         /* set the active key on the right place */
3978                         if (stcb) {
3979                                 /* set the active key on the assoc */
3980                                 if (sctp_auth_setactivekey(stcb,
3981                                     scact->scact_keynumber)) {
3982                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
3983                                             SCTP_FROM_SCTP_USRREQ,
3984                                             EINVAL);
3985                                         error = EINVAL;
3986                                 }
3987                                 SCTP_TCB_UNLOCK(stcb);
3988                         } else {
3989                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3990                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3991                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
3992                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
3993                                         SCTP_INP_WLOCK(inp);
3994                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
3995                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3996                                                 error = EINVAL;
3997                                         }
3998                                         SCTP_INP_WUNLOCK(inp);
3999                                 }
4000                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4001                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4002                                         SCTP_INP_RLOCK(inp);
4003                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4004                                                 SCTP_TCB_LOCK(stcb);
4005                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4006                                                 SCTP_TCB_UNLOCK(stcb);
4007                                         }
4008                                         SCTP_INP_RUNLOCK(inp);
4009                                 }
4010                         }
4011                         break;
4012                 }
4013         case SCTP_AUTH_DELETE_KEY:
4014                 {
4015                         struct sctp_authkeyid *scdel;
4016
4017                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4018                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4019
4020                         /* delete the key from the right place */
4021                         if (stcb) {
4022                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4023                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4024                                         error = EINVAL;
4025                                 }
4026                                 SCTP_TCB_UNLOCK(stcb);
4027                         } else {
4028                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4029                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4030                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4031                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4032                                         SCTP_INP_WLOCK(inp);
4033                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4034                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4035                                                 error = EINVAL;
4036                                         }
4037                                         SCTP_INP_WUNLOCK(inp);
4038                                 }
4039                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4040                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4041                                         SCTP_INP_RLOCK(inp);
4042                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4043                                                 SCTP_TCB_LOCK(stcb);
4044                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4045                                                 SCTP_TCB_UNLOCK(stcb);
4046                                         }
4047                                         SCTP_INP_RUNLOCK(inp);
4048                                 }
4049                         }
4050                         break;
4051                 }
4052         case SCTP_AUTH_DEACTIVATE_KEY:
4053                 {
4054                         struct sctp_authkeyid *keyid;
4055
4056                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4057                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4058
4059                         /* deactivate the key from the right place */
4060                         if (stcb) {
4061                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4062                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4063                                         error = EINVAL;
4064                                 }
4065                                 SCTP_TCB_UNLOCK(stcb);
4066                         } else {
4067                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4068                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4069                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4070                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4071                                         SCTP_INP_WLOCK(inp);
4072                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4073                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4074                                                 error = EINVAL;
4075                                         }
4076                                         SCTP_INP_WUNLOCK(inp);
4077                                 }
4078                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4079                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4080                                         SCTP_INP_RLOCK(inp);
4081                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4082                                                 SCTP_TCB_LOCK(stcb);
4083                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4084                                                 SCTP_TCB_UNLOCK(stcb);
4085                                         }
4086                                         SCTP_INP_RUNLOCK(inp);
4087                                 }
4088                         }
4089                         break;
4090                 }
4091
4092         case SCTP_RESET_STREAMS:
4093                 {
4094                         struct sctp_stream_reset *strrst;
4095                         uint8_t send_in = 0, send_tsn = 0, send_out = 0,
4096                                 addstream = 0;
4097                         uint16_t addstrmcnt = 0;
4098                         int i;
4099
4100                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_stream_reset, optsize);
4101                         SCTP_FIND_STCB(inp, stcb, strrst->strrst_assoc_id);
4102
4103                         if (stcb == NULL) {
4104                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4105                                 error = ENOENT;
4106                                 break;
4107                         }
4108                         if (stcb->asoc.peer_supports_strreset == 0) {
4109                                 /*
4110                                  * Peer does not support it, we return
4111                                  * protocol not supported since this is true
4112                                  * for this feature and this peer, not the
4113                                  * socket request in general.
4114                                  */
4115                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPROTONOSUPPORT);
4116                                 error = EPROTONOSUPPORT;
4117                                 SCTP_TCB_UNLOCK(stcb);
4118                                 break;
4119                         }
4120                         if (stcb->asoc.stream_reset_outstanding) {
4121                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4122                                 error = EALREADY;
4123                                 SCTP_TCB_UNLOCK(stcb);
4124                                 break;
4125                         }
4126                         if (strrst->strrst_flags == SCTP_RESET_LOCAL_RECV) {
4127                                 send_in = 1;
4128                         } else if (strrst->strrst_flags == SCTP_RESET_LOCAL_SEND) {
4129                                 send_out = 1;
4130                         } else if (strrst->strrst_flags == SCTP_RESET_BOTH) {
4131                                 send_in = 1;
4132                                 send_out = 1;
4133                         } else if (strrst->strrst_flags == SCTP_RESET_TSN) {
4134                                 send_tsn = 1;
4135                         } else if (strrst->strrst_flags == SCTP_RESET_ADD_STREAMS) {
4136                                 if (send_tsn ||
4137                                     send_in ||
4138                                     send_out) {
4139                                         /* We can't do that and add streams */
4140                                         error = EINVAL;
4141                                         goto skip_stuff;
4142                                 }
4143                                 if (stcb->asoc.stream_reset_outstanding) {
4144                                         error = EBUSY;
4145                                         goto skip_stuff;
4146                                 }
4147                                 addstream = 1;
4148                                 /* We allocate here */
4149                                 addstrmcnt = strrst->strrst_num_streams;
4150                                 if ((int)(addstrmcnt + stcb->asoc.streamoutcnt) > 0xffff) {
4151                                         /* You can't have more than 64k */
4152                                         error = EINVAL;
4153                                         goto skip_stuff;
4154                                 }
4155                                 if ((stcb->asoc.strm_realoutsize - stcb->asoc.streamoutcnt) < addstrmcnt) {
4156                                         /* Need to allocate more */
4157                                         struct sctp_stream_out *oldstream;
4158                                         struct sctp_stream_queue_pending *sp,
4159                                                                  *nsp;
4160
4161                                         oldstream = stcb->asoc.strmout;
4162                                         /* get some more */
4163                                         SCTP_MALLOC(stcb->asoc.strmout, struct sctp_stream_out *,
4164                                             ((stcb->asoc.streamoutcnt + addstrmcnt) * sizeof(struct sctp_stream_out)),
4165                                             SCTP_M_STRMO);
4166                                         if (stcb->asoc.strmout == NULL) {
4167                                                 stcb->asoc.strmout = oldstream;
4168                                                 error = ENOMEM;
4169                                                 goto skip_stuff;
4170                                         }
4171                                         /*
4172                                          * Ok now we proceed with copying
4173                                          * the old out stuff and
4174                                          * initializing the new stuff.
4175                                          */
4176                                         SCTP_TCB_SEND_LOCK(stcb);
4177                                         stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 0, 1);
4178                                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4179                                                 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
4180                                                 stcb->asoc.strmout[i].next_sequence_sent = oldstream[i].next_sequence_sent;
4181                                                 stcb->asoc.strmout[i].last_msg_incomplete = oldstream[i].last_msg_incomplete;
4182                                                 stcb->asoc.strmout[i].stream_no = i;
4183                                                 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], &oldstream[i]);
4184                                                 /*
4185                                                  * now anything on those
4186                                                  * queues?
4187                                                  */
4188                                                 TAILQ_FOREACH_SAFE(sp, &oldstream[i].outqueue, next, nsp) {
4189                                                         TAILQ_REMOVE(&oldstream[i].outqueue, sp, next);
4190                                                         TAILQ_INSERT_TAIL(&stcb->asoc.strmout[i].outqueue, sp, next);
4191                                                 }
4192                                                 /*
4193                                                  * Now move assoc pointers
4194                                                  * too
4195                                                  */
4196                                                 if (stcb->asoc.last_out_stream == &oldstream[i]) {
4197                                                         stcb->asoc.last_out_stream = &stcb->asoc.strmout[i];
4198                                                 }
4199                                                 if (stcb->asoc.locked_on_sending == &oldstream[i]) {
4200                                                         stcb->asoc.locked_on_sending = &stcb->asoc.strmout[i];
4201                                                 }
4202                                         }
4203                                         /* now the new streams */
4204                                         stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4205                                         for (i = stcb->asoc.streamoutcnt; i < (stcb->asoc.streamoutcnt + addstrmcnt); i++) {
4206                                                 stcb->asoc.strmout[i].next_sequence_sent = 0x0;
4207                                                 TAILQ_INIT(&stcb->asoc.strmout[i].outqueue);
4208                                                 stcb->asoc.strmout[i].stream_no = i;
4209                                                 stcb->asoc.strmout[i].last_msg_incomplete = 0;
4210                                                 stcb->asoc.ss_functions.sctp_ss_init_stream(&stcb->asoc.strmout[i], NULL);
4211                                         }
4212                                         stcb->asoc.strm_realoutsize = stcb->asoc.streamoutcnt + addstrmcnt;
4213                                         SCTP_FREE(oldstream, SCTP_M_STRMO);
4214                                 }
4215                                 SCTP_TCB_SEND_UNLOCK(stcb);
4216                                 goto skip_stuff;
4217                         } else {
4218                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4219                                 error = EINVAL;
4220                                 SCTP_TCB_UNLOCK(stcb);
4221                                 break;
4222                         }
4223                         for (i = 0; i < strrst->strrst_num_streams; i++) {
4224                                 if ((send_in) &&
4225
4226                                     (strrst->strrst_list[i] > stcb->asoc.streamincnt)) {
4227                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4228                                         error = EINVAL;
4229                                         goto get_out;
4230                                 }
4231                                 if ((send_out) &&
4232                                     (strrst->strrst_list[i] > stcb->asoc.streamoutcnt)) {
4233                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4234                                         error = EINVAL;
4235                                         goto get_out;
4236                                 }
4237                         }
4238         skip_stuff:
4239                         if (error) {
4240                 get_out:
4241                                 SCTP_TCB_UNLOCK(stcb);
4242                                 break;
4243                         }
4244                         error = sctp_send_str_reset_req(stcb, strrst->strrst_num_streams,
4245                             strrst->strrst_list,
4246                             send_out, (stcb->asoc.str_reset_seq_in - 3),
4247                             send_in, send_tsn, addstream, addstrmcnt);
4248
4249                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4250                         SCTP_TCB_UNLOCK(stcb);
4251                         break;
4252                 }
4253         case SCTP_CONNECT_X:
4254                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4255                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4256                         error = EINVAL;
4257                         break;
4258                 }
4259                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4260                 break;
4261         case SCTP_CONNECT_X_DELAYED:
4262                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4263                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4264                         error = EINVAL;
4265                         break;
4266                 }
4267                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4268                 break;
4269         case SCTP_CONNECT_X_COMPLETE:
4270                 {
4271                         struct sockaddr *sa;
4272                         struct sctp_nets *net;
4273
4274                         /* FIXME MT: check correct? */
4275                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4276
4277                         /* find tcb */
4278                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4279                                 SCTP_INP_RLOCK(inp);
4280                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4281                                 if (stcb) {
4282                                         SCTP_TCB_LOCK(stcb);
4283                                         net = sctp_findnet(stcb, sa);
4284                                 }
4285                                 SCTP_INP_RUNLOCK(inp);
4286                         } else {
4287                                 /*
4288                                  * We increment here since
4289                                  * sctp_findassociation_ep_addr() wil do a
4290                                  * decrement if it finds the stcb as long as
4291                                  * the locked tcb (last argument) is NOT a
4292                                  * TCB.. aka NULL.
4293                                  */
4294                                 SCTP_INP_INCR_REF(inp);
4295                                 stcb = sctp_findassociation_ep_addr(&inp, sa, &net, NULL, NULL);
4296                                 if (stcb == NULL) {
4297                                         SCTP_INP_DECR_REF(inp);
4298                                 }
4299                         }
4300
4301                         if (stcb == NULL) {
4302                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4303                                 error = ENOENT;
4304                                 break;
4305                         }
4306                         if (stcb->asoc.delayed_connection == 1) {
4307                                 stcb->asoc.delayed_connection = 0;
4308                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4309                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4310                                     stcb->asoc.primary_destination,
4311                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
4312                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4313                         } else {
4314                                 /*
4315                                  * already expired or did not use delayed
4316                                  * connectx
4317                                  */
4318                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4319                                 error = EALREADY;
4320                         }
4321                         SCTP_TCB_UNLOCK(stcb);
4322                         break;
4323                 }
4324         case SCTP_MAX_BURST:
4325                 {
4326                         struct sctp_assoc_value *av;
4327
4328                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4329                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4330
4331                         if (stcb) {
4332                                 stcb->asoc.max_burst = av->assoc_value;
4333                                 SCTP_TCB_UNLOCK(stcb);
4334                         } else {
4335                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4336                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4337                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4338                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4339                                         SCTP_INP_WLOCK(inp);
4340                                         inp->sctp_ep.max_burst = av->assoc_value;
4341                                         SCTP_INP_WUNLOCK(inp);
4342                                 }
4343                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4344                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4345                                         SCTP_INP_RLOCK(inp);
4346                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4347                                                 SCTP_TCB_LOCK(stcb);
4348                                                 stcb->asoc.max_burst = av->assoc_value;
4349                                                 SCTP_TCB_UNLOCK(stcb);
4350                                         }
4351                                         SCTP_INP_RUNLOCK(inp);
4352                                 }
4353                         }
4354                         break;
4355                 }
4356         case SCTP_MAXSEG:
4357                 {
4358                         struct sctp_assoc_value *av;
4359                         int ovh;
4360
4361                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4362                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4363
4364                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4365                                 ovh = SCTP_MED_OVERHEAD;
4366                         } else {
4367                                 ovh = SCTP_MED_V4_OVERHEAD;
4368                         }
4369                         if (stcb) {
4370                                 if (av->assoc_value) {
4371                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4372                                 } else {
4373                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4374                                 }
4375                                 SCTP_TCB_UNLOCK(stcb);
4376                         } else {
4377                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4378                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4379                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4380                                         SCTP_INP_WLOCK(inp);
4381                                         /*
4382                                          * FIXME MT: I think this is not in
4383                                          * tune with the API ID
4384                                          */
4385                                         if (av->assoc_value) {
4386                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4387                                         } else {
4388                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4389                                         }
4390                                         SCTP_INP_WUNLOCK(inp);
4391                                 } else {
4392                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4393                                         error = EINVAL;
4394                                 }
4395                         }
4396                         break;
4397                 }
4398         case SCTP_EVENTS:
4399                 {
4400                         struct sctp_event_subscribe *events;
4401
4402                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4403
4404                         SCTP_INP_WLOCK(inp);
4405                         if (events->sctp_data_io_event) {
4406                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4407                         } else {
4408                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4409                         }
4410
4411                         if (events->sctp_association_event) {
4412                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4413                         } else {
4414                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4415                         }
4416
4417                         if (events->sctp_address_event) {
4418                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4419                         } else {
4420                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4421                         }
4422
4423                         if (events->sctp_send_failure_event) {
4424                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4425                         } else {
4426                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4427                         }
4428
4429                         if (events->sctp_peer_error_event) {
4430                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4431                         } else {
4432                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4433                         }
4434
4435                         if (events->sctp_shutdown_event) {
4436                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4437                         } else {
4438                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4439                         }
4440
4441                         if (events->sctp_partial_delivery_event) {
4442                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4443                         } else {
4444                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4445                         }
4446
4447                         if (events->sctp_adaptation_layer_event) {
4448                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4449                         } else {
4450                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4451                         }
4452
4453                         if (events->sctp_authentication_event) {
4454                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4455                         } else {
4456                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
4457                         }
4458
4459                         if (events->sctp_sender_dry_event) {
4460                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
4461                         } else {
4462                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
4463                         }
4464
4465                         if (events->sctp_stream_reset_event) {
4466                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4467                         } else {
4468                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4469                         }
4470                         SCTP_INP_WUNLOCK(inp);
4471
4472                         SCTP_INP_RLOCK(inp);
4473                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4474                                 SCTP_TCB_LOCK(stcb);
4475                                 if (events->sctp_association_event) {
4476                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4477                                 } else {
4478                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4479                                 }
4480                                 if (events->sctp_address_event) {
4481                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4482                                 } else {
4483                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
4484                                 }
4485                                 if (events->sctp_send_failure_event) {
4486                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4487                                 } else {
4488                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4489                                 }
4490                                 if (events->sctp_peer_error_event) {
4491                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4492                                 } else {
4493                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
4494                                 }
4495                                 if (events->sctp_shutdown_event) {
4496                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4497                                 } else {
4498                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4499                                 }
4500                                 if (events->sctp_partial_delivery_event) {
4501                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4502                                 } else {
4503                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
4504                                 }
4505                                 if (events->sctp_adaptation_layer_event) {
4506                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4507                                 } else {
4508                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
4509                                 }
4510                                 if (events->sctp_authentication_event) {
4511                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4512                                 } else {
4513                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
4514                                 }
4515                                 if (events->sctp_sender_dry_event) {
4516                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4517                                 } else {
4518                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
4519                                 }
4520                                 if (events->sctp_stream_reset_event) {
4521                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4522                                 } else {
4523                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
4524                                 }
4525                                 SCTP_TCB_UNLOCK(stcb);
4526                         }
4527                         /*
4528                          * Send up the sender dry event only for 1-to-1
4529                          * style sockets.
4530                          */
4531                         if (events->sctp_sender_dry_event) {
4532                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4533                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
4534                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
4535                                         if (stcb) {
4536                                                 SCTP_TCB_LOCK(stcb);
4537                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
4538                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
4539                                                     (stcb->asoc.stream_queue_cnt == 0)) {
4540                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
4541                                                 }
4542                                                 SCTP_TCB_UNLOCK(stcb);
4543                                         }
4544                                 }
4545                         }
4546                         SCTP_INP_RUNLOCK(inp);
4547                         break;
4548                 }
4549         case SCTP_ADAPTATION_LAYER:
4550                 {
4551                         struct sctp_setadaptation *adap_bits;
4552
4553                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
4554                         SCTP_INP_WLOCK(inp);
4555                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
4556                         SCTP_INP_WUNLOCK(inp);
4557                         break;
4558                 }
4559 #ifdef SCTP_DEBUG
4560         case SCTP_SET_INITIAL_DBG_SEQ:
4561                 {
4562                         uint32_t *vvv;
4563
4564                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
4565                         SCTP_INP_WLOCK(inp);
4566                         inp->sctp_ep.initial_sequence_debug = *vvv;
4567                         SCTP_INP_WUNLOCK(inp);
4568                         break;
4569                 }
4570 #endif
4571         case SCTP_DEFAULT_SEND_PARAM:
4572                 {
4573                         struct sctp_sndrcvinfo *s_info;
4574
4575                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
4576                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
4577
4578                         if (stcb) {
4579                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4580                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4581                                 } else {
4582                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4583                                         error = EINVAL;
4584                                 }
4585                                 SCTP_TCB_UNLOCK(stcb);
4586                         } else {
4587                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4588                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4589                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
4590                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4591                                         SCTP_INP_WLOCK(inp);
4592                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
4593                                         SCTP_INP_WUNLOCK(inp);
4594                                 }
4595                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
4596                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
4597                                         SCTP_INP_RLOCK(inp);
4598                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4599                                                 SCTP_TCB_LOCK(stcb);
4600                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
4601                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
4602                                                 }
4603                                                 SCTP_TCB_UNLOCK(stcb);
4604                                         }
4605                                         SCTP_INP_RUNLOCK(inp);
4606                                 }
4607                         }
4608                         break;
4609                 }
4610         case SCTP_PEER_ADDR_PARAMS:
4611                 {
4612                         struct sctp_paddrparams *paddrp;
4613                         struct sctp_nets *net;
4614
4615                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
4616                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
4617                         net = NULL;
4618                         if (stcb) {
4619                                 net = sctp_findnet(stcb, (struct sockaddr *)&paddrp->spp_address);
4620                         } else {
4621                                 /*
4622                                  * We increment here since
4623                                  * sctp_findassociation_ep_addr() wil do a
4624                                  * decrement if it finds the stcb as long as
4625                                  * the locked tcb (last argument) is NOT a
4626                                  * TCB.. aka NULL.
4627                                  */
4628                                 SCTP_INP_INCR_REF(inp);
4629                                 stcb = sctp_findassociation_ep_addr(&inp,
4630                                     (struct sockaddr *)&paddrp->spp_address,
4631                                     &net, NULL, NULL);
4632                                 if (stcb == NULL) {
4633                                         SCTP_INP_DECR_REF(inp);
4634                                 }
4635                         }
4636                         if (stcb && (net == NULL)) {
4637                                 struct sockaddr *sa;
4638
4639                                 sa = (struct sockaddr *)&paddrp->spp_address;
4640 #ifdef INET
4641                                 if (sa->sa_family == AF_INET) {
4642
4643                                         struct sockaddr_in *sin;
4644
4645                                         sin = (struct sockaddr_in *)sa;
4646                                         if (sin->sin_addr.s_addr) {
4647                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4648                                                 SCTP_TCB_UNLOCK(stcb);
4649                                                 error = EINVAL;
4650                                                 break;
4651                                         }
4652                                 } else
4653 #endif
4654 #ifdef INET6
4655                                 if (sa->sa_family == AF_INET6) {
4656                                         struct sockaddr_in6 *sin6;
4657
4658                                         sin6 = (struct sockaddr_in6 *)sa;
4659                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
4660                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4661                                                 SCTP_TCB_UNLOCK(stcb);
4662                                                 error = EINVAL;
4663                                                 break;
4664                                         }
4665                                 } else
4666 #endif
4667                                 {
4668                                         error = EAFNOSUPPORT;
4669                                         SCTP_TCB_UNLOCK(stcb);
4670                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4671                                         break;
4672                                 }
4673                         }
4674                         /* sanity checks */
4675                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
4676                                 if (stcb)
4677                                         SCTP_TCB_UNLOCK(stcb);
4678                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4679                                 return (EINVAL);
4680                         }
4681                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
4682                                 if (stcb)
4683                                         SCTP_TCB_UNLOCK(stcb);
4684                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4685                                 return (EINVAL);
4686                         }
4687                         if (stcb) {
4688                                 /************************TCB SPECIFIC SET ******************/
4689                                 /*
4690                                  * do we change the timer for HB, we run
4691                                  * only one?
4692                                  */
4693                                 int ovh = 0;
4694
4695                                 if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4696                                         ovh = SCTP_MED_OVERHEAD;
4697                                 } else {
4698                                         ovh = SCTP_MED_V4_OVERHEAD;
4699                                 }
4700
4701                                 /* network sets ? */
4702                                 if (net) {
4703                                         /************************NET SPECIFIC SET ******************/
4704                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4705                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
4706                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
4707                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4708                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4709                                                 }
4710                                                 net->dest_state |= SCTP_ADDR_NOHB;
4711                                         }
4712                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4713                                                 if (paddrp->spp_hbinterval) {
4714                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
4715                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4716                                                         net->heart_beat_delay = 0;
4717                                                 }
4718                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4719                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4720                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4721                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4722                                         }
4723                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
4724                                                 /* on demand HB */
4725                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4726                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
4727                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4728                                         }
4729                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4730                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4731                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4732                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4733                                                 }
4734                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
4735                                                 if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4736                                                         net->mtu = paddrp->spp_pathmtu + ovh;
4737                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
4738                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
4739                                                         }
4740                                                 }
4741                                         }
4742                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4743                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4744                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4745                                                 }
4746                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4747                                         }
4748                                         if (paddrp->spp_pathmaxrxt) {
4749                                                 if (net->dest_state & SCTP_ADDR_PF) {
4750                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4751                                                                 net->dest_state &= ~SCTP_ADDR_PF;
4752                                                         }
4753                                                 } else {
4754                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4755                                                             (net->error_count > net->pf_threshold)) {
4756                                                                 net->dest_state |= SCTP_ADDR_PF;
4757                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4758                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4759                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4760                                                         }
4761                                                 }
4762                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
4763                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
4764                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
4765                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4766                                                         }
4767                                                 } else {
4768                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
4769                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
4770                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4771                                                         }
4772                                                 }
4773                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
4774                                         }
4775                                         if (paddrp->spp_flags & SPP_DSCP) {
4776                                                 net->dscp = paddrp->spp_dscp & 0xfc;
4777                                                 net->dscp |= 0x01;
4778                                         }
4779 #ifdef INET6
4780                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4781                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4782                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4783                                                         net->flowlabel |= 0x80000000;
4784                                                 }
4785                                         }
4786 #endif
4787                                 } else {
4788                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
4789                                         if (paddrp->spp_pathmaxrxt) {
4790                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
4791                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4792                                                         if (net->dest_state & SCTP_ADDR_PF) {
4793                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4794                                                                         net->dest_state &= ~SCTP_ADDR_PF;
4795                                                                 }
4796                                                         } else {
4797                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
4798                                                                     (net->error_count > net->pf_threshold)) {
4799                                                                         net->dest_state |= SCTP_ADDR_PF;
4800                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
4801                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
4802                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
4803                                                                 }
4804                                                         }
4805                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
4806                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
4807                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
4808                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4809                                                                 }
4810                                                         } else {
4811                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
4812                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
4813                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
4814                                                                 }
4815                                                         }
4816                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
4817                                                 }
4818                                         }
4819                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4820                                                 if (paddrp->spp_hbinterval) {
4821                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
4822                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4823                                                         stcb->asoc.heart_beat_delay = 0;
4824                                                 }
4825                                                 /* Turn back on the timer */
4826                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4827                                                         if (paddrp->spp_hbinterval) {
4828                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
4829                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4830                                                                 net->heart_beat_delay = 0;
4831                                                         }
4832                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
4833                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
4834                                                         }
4835                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
4836                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4837                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
4838                                                 }
4839                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4840                                         }
4841                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
4842                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4843                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
4844                                                                 net->dest_state |= SCTP_ADDR_NOHB;
4845                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
4846                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4847                                                                 }
4848                                                         }
4849                                                 }
4850                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4851                                         }
4852                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
4853                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4854                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4855                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
4856                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
4857                                                         }
4858                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
4859                                                         if (paddrp->spp_pathmtu > SCTP_DEFAULT_MINSEGMENT) {
4860                                                                 net->mtu = paddrp->spp_pathmtu + ovh;
4861                                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
4862                                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
4863                                                                 }
4864                                                         }
4865                                                 }
4866                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4867                                         }
4868                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4869                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4870                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
4871                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
4872                                                         }
4873                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
4874                                                 }
4875                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4876                                         }
4877                                         if (paddrp->spp_flags & SPP_DSCP) {
4878                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4879                                                         net->dscp = paddrp->spp_dscp & 0xfc;
4880                                                         net->dscp |= 0x01;
4881                                                 }
4882                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
4883                                                 stcb->asoc.default_dscp |= 0x01;
4884                                         }
4885 #ifdef INET6
4886                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4887                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
4888                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
4889                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4890                                                                 net->flowlabel |= 0x80000000;
4891                                                         }
4892                                                 }
4893                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4894                                                 stcb->asoc.default_flowlabel |= 0x80000000;
4895                                         }
4896 #endif
4897                                 }
4898                                 SCTP_TCB_UNLOCK(stcb);
4899                         } else {
4900                                 /************************NO TCB, SET TO default stuff ******************/
4901                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4902                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4903                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
4904                                         SCTP_INP_WLOCK(inp);
4905                                         /*
4906                                          * For the TOS/FLOWLABEL stuff you
4907                                          * set it with the options on the
4908                                          * socket
4909                                          */
4910                                         if (paddrp->spp_pathmaxrxt) {
4911                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
4912                                         }
4913                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
4914                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4915                                         else if (paddrp->spp_hbinterval) {
4916                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
4917                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
4918                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4919                                         }
4920                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
4921                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
4922                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
4923                                                 } else if (paddrp->spp_hbinterval) {
4924                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
4925                                                 }
4926                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4927                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
4928                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
4929                                         }
4930                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
4931                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4932                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
4933                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
4934                                         }
4935                                         if (paddrp->spp_flags & SPP_DSCP) {
4936                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
4937                                                 inp->sctp_ep.default_dscp |= 0x01;
4938                                         }
4939 #ifdef INET6
4940                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
4941                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4942                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
4943                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
4944                                                 }
4945                                         }
4946 #endif
4947                                         SCTP_INP_WUNLOCK(inp);
4948                                 } else {
4949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4950                                         error = EINVAL;
4951                                 }
4952                         }
4953                         break;
4954                 }
4955         case SCTP_RTOINFO:
4956                 {
4957                         struct sctp_rtoinfo *srto;
4958                         uint32_t new_init, new_min, new_max;
4959
4960                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
4961                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
4962
4963                         if (stcb) {
4964                                 if (srto->srto_initial)
4965                                         new_init = srto->srto_initial;
4966                                 else
4967                                         new_init = stcb->asoc.initial_rto;
4968                                 if (srto->srto_max)
4969                                         new_max = srto->srto_max;
4970                                 else
4971                                         new_max = stcb->asoc.maxrto;
4972                                 if (srto->srto_min)
4973                                         new_min = srto->srto_min;
4974                                 else
4975                                         new_min = stcb->asoc.minrto;
4976                                 if ((new_min <= new_init) && (new_init <= new_max)) {
4977                                         stcb->asoc.initial_rto = new_init;
4978                                         stcb->asoc.maxrto = new_max;
4979                                         stcb->asoc.minrto = new_min;
4980                                 } else {
4981                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4982                                         error = EINVAL;
4983                                 }
4984                                 SCTP_TCB_UNLOCK(stcb);
4985                         } else {
4986                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4987                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4988                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
4989                                         SCTP_INP_WLOCK(inp);
4990                                         if (srto->srto_initial)
4991                                                 new_init = srto->srto_initial;
4992                                         else
4993                                                 new_init = inp->sctp_ep.initial_rto;
4994                                         if (srto->srto_max)
4995                                                 new_max = srto->srto_max;
4996                                         else
4997                                                 new_max = inp->sctp_ep.sctp_maxrto;
4998                                         if (srto->srto_min)
4999                                                 new_min = srto->srto_min;
5000                                         else
5001                                                 new_min = inp->sctp_ep.sctp_minrto;
5002                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5003                                                 inp->sctp_ep.initial_rto = new_init;
5004                                                 inp->sctp_ep.sctp_maxrto = new_max;
5005                                                 inp->sctp_ep.sctp_minrto = new_min;
5006                                         } else {
5007                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5008                                                 error = EINVAL;
5009                                         }
5010                                         SCTP_INP_WUNLOCK(inp);
5011                                 } else {
5012                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5013                                         error = EINVAL;
5014                                 }
5015                         }
5016                         break;
5017                 }
5018         case SCTP_ASSOCINFO:
5019                 {
5020                         struct sctp_assocparams *sasoc;
5021
5022                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5023                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5024                         if (sasoc->sasoc_cookie_life) {
5025                                 /* boundary check the cookie life */
5026                                 if (sasoc->sasoc_cookie_life < 1000)
5027                                         sasoc->sasoc_cookie_life = 1000;
5028                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5029                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5030                                 }
5031                         }
5032                         if (stcb) {
5033                                 if (sasoc->sasoc_asocmaxrxt)
5034                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5035                                 if (sasoc->sasoc_cookie_life) {
5036                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5037                                 }
5038                                 SCTP_TCB_UNLOCK(stcb);
5039                         } else {
5040                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5041                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5042                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5043                                         SCTP_INP_WLOCK(inp);
5044                                         if (sasoc->sasoc_asocmaxrxt)
5045                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5046                                         if (sasoc->sasoc_cookie_life) {
5047                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5048                                         }
5049                                         SCTP_INP_WUNLOCK(inp);
5050                                 } else {
5051                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5052                                         error = EINVAL;
5053                                 }
5054                         }
5055                         break;
5056                 }
5057         case SCTP_INITMSG:
5058                 {
5059                         struct sctp_initmsg *sinit;
5060
5061                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5062                         SCTP_INP_WLOCK(inp);
5063                         if (sinit->sinit_num_ostreams)
5064                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5065
5066                         if (sinit->sinit_max_instreams)
5067                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5068
5069                         if (sinit->sinit_max_attempts)
5070                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5071
5072                         if (sinit->sinit_max_init_timeo)
5073                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5074                         SCTP_INP_WUNLOCK(inp);
5075                         break;
5076                 }
5077         case SCTP_PRIMARY_ADDR:
5078                 {
5079                         struct sctp_setprim *spa;
5080                         struct sctp_nets *net;
5081
5082                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5083                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5084
5085                         net = NULL;
5086                         if (stcb) {
5087                                 net = sctp_findnet(stcb, (struct sockaddr *)&spa->ssp_addr);
5088                         } else {
5089                                 /*
5090                                  * We increment here since
5091                                  * sctp_findassociation_ep_addr() wil do a
5092                                  * decrement if it finds the stcb as long as
5093                                  * the locked tcb (last argument) is NOT a
5094                                  * TCB.. aka NULL.
5095                                  */
5096                                 SCTP_INP_INCR_REF(inp);
5097                                 stcb = sctp_findassociation_ep_addr(&inp,
5098                                     (struct sockaddr *)&spa->ssp_addr,
5099                                     &net, NULL, NULL);
5100                                 if (stcb == NULL) {
5101                                         SCTP_INP_DECR_REF(inp);
5102                                 }
5103                         }
5104
5105                         if ((stcb) && (net)) {
5106                                 if ((net != stcb->asoc.primary_destination) &&
5107                                     (!(net->dest_state & SCTP_ADDR_UNCONFIRMED))) {
5108                                         /* Ok we need to set it */
5109                                         if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5110                                                 if ((stcb->asoc.alternate) &&
5111                                                     (!(net->dest_state & SCTP_ADDR_PF)) &&
5112                                                     (net->dest_state & SCTP_ADDR_REACHABLE)) {
5113                                                         sctp_free_remote_addr(stcb->asoc.alternate);
5114                                                         stcb->asoc.alternate = NULL;
5115                                                 }
5116                                         }
5117                                 }
5118                         } else {
5119                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5120                                 error = EINVAL;
5121                         }
5122                         if (stcb) {
5123                                 SCTP_TCB_UNLOCK(stcb);
5124                         }
5125                         break;
5126                 }
5127         case SCTP_SET_DYNAMIC_PRIMARY:
5128                 {
5129                         union sctp_sockstore *ss;
5130
5131                         error = priv_check(curthread,
5132                             PRIV_NETINET_RESERVEDPORT);
5133                         if (error)
5134                                 break;
5135
5136                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5137                         /* SUPER USER CHECK? */
5138                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5139                         break;
5140                 }
5141         case SCTP_SET_PEER_PRIMARY_ADDR:
5142                 {
5143                         struct sctp_setpeerprim *sspp;
5144
5145                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5146                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5147                         if (stcb != NULL) {
5148                                 struct sctp_ifa *ifa;
5149
5150                                 ifa = sctp_find_ifa_by_addr((struct sockaddr *)&sspp->sspp_addr,
5151                                     stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5152                                 if (ifa == NULL) {
5153                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5154                                         error = EINVAL;
5155                                         goto out_of_it;
5156                                 }
5157                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5158                                         /*
5159                                          * Must validate the ifa found is in
5160                                          * our ep
5161                                          */
5162                                         struct sctp_laddr *laddr;
5163                                         int found = 0;
5164
5165                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5166                                                 if (laddr->ifa == NULL) {
5167                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5168                                                             __FUNCTION__);
5169                                                         continue;
5170                                                 }
5171                                                 if (laddr->ifa == ifa) {
5172                                                         found = 1;
5173                                                         break;
5174                                                 }
5175                                         }
5176                                         if (!found) {
5177                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5178                                                 error = EINVAL;
5179                                                 goto out_of_it;
5180                                         }
5181                                 }
5182                                 if (sctp_set_primary_ip_address_sa(stcb,
5183                                     (struct sockaddr *)&sspp->sspp_addr) != 0) {
5184                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5185                                         error = EINVAL;
5186                                 }
5187                 out_of_it:
5188                                 SCTP_TCB_UNLOCK(stcb);
5189                         } else {
5190                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5191                                 error = EINVAL;
5192                         }
5193                         break;
5194                 }
5195         case SCTP_BINDX_ADD_ADDR:
5196                 {
5197                         struct sctp_getaddresses *addrs;
5198                         size_t sz;
5199                         struct thread *td;
5200
5201                         td = (struct thread *)p;
5202                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5203                             optsize);
5204 #ifdef INET
5205                         if (addrs->addr->sa_family == AF_INET) {
5206                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5207                                 if (optsize < sz) {
5208                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5209                                         error = EINVAL;
5210                                         break;
5211                                 }
5212                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5213                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5214                                         break;
5215                                 }
5216                         } else
5217 #endif
5218 #ifdef INET6
5219                         if (addrs->addr->sa_family == AF_INET6) {
5220                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5221                                 if (optsize < sz) {
5222                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5223                                         error = EINVAL;
5224                                         break;
5225                                 }
5226                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5227                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5228                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5229                                         break;
5230                                 }
5231                         } else
5232 #endif
5233                         {
5234                                 error = EAFNOSUPPORT;
5235                                 break;
5236                         }
5237                         sctp_bindx_add_address(so, inp, addrs->addr,
5238                             addrs->sget_assoc_id, vrf_id,
5239                             &error, p);
5240                         break;
5241                 }
5242         case SCTP_BINDX_REM_ADDR:
5243                 {
5244                         struct sctp_getaddresses *addrs;
5245                         size_t sz;
5246                         struct thread *td;
5247
5248                         td = (struct thread *)p;
5249
5250                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5251 #ifdef INET
5252                         if (addrs->addr->sa_family == AF_INET) {
5253                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in);
5254                                 if (optsize < sz) {
5255                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5256                                         error = EINVAL;
5257                                         break;
5258                                 }
5259                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5260                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5261                                         break;
5262                                 }
5263                         } else
5264 #endif
5265 #ifdef INET6
5266                         if (addrs->addr->sa_family == AF_INET6) {
5267                                 sz = sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6);
5268                                 if (optsize < sz) {
5269                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5270                                         error = EINVAL;
5271                                         break;
5272                                 }
5273                                 if (td != NULL &&
5274                                     (error = prison_local_ip6(td->td_ucred,
5275                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5276                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5277                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5278                                         break;
5279                                 }
5280                         } else
5281 #endif
5282                         {
5283                                 error = EAFNOSUPPORT;
5284                                 break;
5285                         }
5286                         sctp_bindx_delete_address(inp, addrs->addr,
5287                             addrs->sget_assoc_id, vrf_id,
5288                             &error);
5289                         break;
5290                 }
5291         case SCTP_EVENT:
5292                 {
5293                         struct sctp_event *event;
5294                         uint32_t event_type;
5295
5296                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5297                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5298                         switch (event->se_type) {
5299                         case SCTP_ASSOC_CHANGE:
5300                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5301                                 break;
5302                         case SCTP_PEER_ADDR_CHANGE:
5303                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5304                                 break;
5305                         case SCTP_REMOTE_ERROR:
5306                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5307                                 break;
5308                         case SCTP_SEND_FAILED:
5309                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5310                                 break;
5311                         case SCTP_SHUTDOWN_EVENT:
5312                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5313                                 break;
5314                         case SCTP_ADAPTATION_INDICATION:
5315                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5316                                 break;
5317                         case SCTP_PARTIAL_DELIVERY_EVENT:
5318                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5319                                 break;
5320                         case SCTP_AUTHENTICATION_EVENT:
5321                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5322                                 break;
5323                         case SCTP_STREAM_RESET_EVENT:
5324                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5325                                 break;
5326                         case SCTP_SENDER_DRY_EVENT:
5327                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
5328                                 break;
5329                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
5330                                 event_type = 0;
5331                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5332                                 error = ENOTSUP;
5333                                 break;
5334                         default:
5335                                 event_type = 0;
5336                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5337                                 error = EINVAL;
5338                                 break;
5339                         }
5340                         if (event_type > 0) {
5341                                 if (stcb) {
5342                                         if (event->se_on) {
5343                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5344                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
5345                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5346                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5347                                                             (stcb->asoc.stream_queue_cnt == 0)) {
5348                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5349                                                         }
5350                                                 }
5351                                         } else {
5352                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5353                                         }
5354                                         SCTP_TCB_UNLOCK(stcb);
5355                                 } else {
5356                                         /*
5357                                          * We don't want to send up a storm
5358                                          * of events, so return an error for
5359                                          * sender dry events
5360                                          */
5361                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
5362                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
5363                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
5364                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
5365                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
5366                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
5367                                                 error = ENOTSUP;
5368                                                 break;
5369                                         }
5370                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5371                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5372                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
5373                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5374                                                 SCTP_INP_WLOCK(inp);
5375                                                 if (event->se_on) {
5376                                                         sctp_feature_on(inp, event_type);
5377                                                 } else {
5378                                                         sctp_feature_off(inp, event_type);
5379                                                 }
5380                                                 SCTP_INP_WUNLOCK(inp);
5381                                         }
5382                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
5383                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
5384                                                 SCTP_INP_RLOCK(inp);
5385                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5386                                                         SCTP_TCB_LOCK(stcb);
5387                                                         if (event->se_on) {
5388                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
5389                                                         } else {
5390                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
5391                                                         }
5392                                                         SCTP_TCB_UNLOCK(stcb);
5393                                                 }
5394                                                 SCTP_INP_RUNLOCK(inp);
5395                                         }
5396                                 }
5397                         }
5398                         break;
5399                 }
5400         case SCTP_RECVRCVINFO:
5401                 {
5402                         int *onoff;
5403
5404                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5405                         SCTP_INP_WLOCK(inp);
5406                         if (*onoff != 0) {
5407                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5408                         } else {
5409                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
5410                         }
5411                         SCTP_INP_WUNLOCK(inp);
5412                         break;
5413                 }
5414         case SCTP_RECVNXTINFO:
5415                 {
5416                         int *onoff;
5417
5418                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
5419                         SCTP_INP_WLOCK(inp);
5420                         if (*onoff != 0) {
5421                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5422                         } else {
5423                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
5424                         }
5425                         SCTP_INP_WUNLOCK(inp);
5426                         break;
5427                 }
5428         case SCTP_DEFAULT_SNDINFO:
5429                 {
5430                         struct sctp_sndinfo *info;
5431                         uint16_t policy;
5432
5433                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
5434                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
5435
5436                         if (stcb) {
5437                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5438                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5439                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5440                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5441                                         stcb->asoc.def_send.sinfo_flags |= policy;
5442                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5443                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5444                                 } else {
5445                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5446                                         error = EINVAL;
5447                                 }
5448                                 SCTP_TCB_UNLOCK(stcb);
5449                         } else {
5450                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5451                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5452                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
5453                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5454                                         SCTP_INP_WLOCK(inp);
5455                                         inp->def_send.sinfo_stream = info->snd_sid;
5456                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
5457                                         inp->def_send.sinfo_flags = info->snd_flags;
5458                                         inp->def_send.sinfo_flags |= policy;
5459                                         inp->def_send.sinfo_ppid = info->snd_ppid;
5460                                         inp->def_send.sinfo_context = info->snd_context;
5461                                         SCTP_INP_WUNLOCK(inp);
5462                                 }
5463                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
5464                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
5465                                         SCTP_INP_RLOCK(inp);
5466                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5467                                                 SCTP_TCB_LOCK(stcb);
5468                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
5469                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
5470                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
5471                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
5472                                                         stcb->asoc.def_send.sinfo_flags |= policy;
5473                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
5474                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
5475                                                 }
5476                                                 SCTP_TCB_UNLOCK(stcb);
5477                                         }
5478                                         SCTP_INP_RUNLOCK(inp);
5479                                 }
5480                         }
5481                         break;
5482                 }
5483         case SCTP_DEFAULT_PRINFO:
5484                 {
5485                         struct sctp_default_prinfo *info;
5486
5487                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
5488                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
5489
5490                         if (PR_SCTP_INVALID_POLICY(info->pr_policy)) {
5491                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5492                                 error = EINVAL;
5493                                 break;
5494                         }
5495                         if (stcb) {
5496                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5497                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5498                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5499                                 SCTP_TCB_UNLOCK(stcb);
5500                         } else {
5501                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5502                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5503                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
5504                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5505                                         SCTP_INP_WLOCK(inp);
5506                                         inp->def_send.sinfo_flags &= 0xfff0;
5507                                         inp->def_send.sinfo_flags |= info->pr_policy;
5508                                         inp->def_send.sinfo_timetolive = info->pr_value;
5509                                         SCTP_INP_WUNLOCK(inp);
5510                                 }
5511                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
5512                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
5513                                         SCTP_INP_RLOCK(inp);
5514                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5515                                                 SCTP_TCB_LOCK(stcb);
5516                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
5517                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
5518                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
5519                                                 SCTP_TCB_UNLOCK(stcb);
5520                                         }
5521                                         SCTP_INP_RUNLOCK(inp);
5522                                 }
5523                         }
5524                         break;
5525                 }
5526         case SCTP_PEER_ADDR_THLDS:
5527                 /* Applies to the specific association */
5528                 {
5529                         struct sctp_paddrthlds *thlds;
5530                         struct sctp_nets *net;
5531
5532                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
5533                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
5534                         net = NULL;
5535                         if (stcb) {
5536                                 net = sctp_findnet(stcb, (struct sockaddr *)&thlds->spt_assoc_id);
5537                         } else {
5538                                 /*
5539                                  * We increment here since
5540                                  * sctp_findassociation_ep_addr() wil do a
5541                                  * decrement if it finds the stcb as long as
5542                                  * the locked tcb (last argument) is NOT a
5543                                  * TCB.. aka NULL.
5544                                  */
5545                                 SCTP_INP_INCR_REF(inp);
5546                                 stcb = sctp_findassociation_ep_addr(&inp,
5547                                     (struct sockaddr *)&thlds->spt_assoc_id,
5548                                     &net, NULL, NULL);
5549                                 if (stcb == NULL) {
5550                                         SCTP_INP_DECR_REF(inp);
5551                                 }
5552                         }
5553                         if (stcb && (net == NULL)) {
5554                                 struct sockaddr *sa;
5555
5556                                 sa = (struct sockaddr *)&thlds->spt_assoc_id;
5557 #ifdef INET
5558                                 if (sa->sa_family == AF_INET) {
5559
5560                                         struct sockaddr_in *sin;
5561
5562                                         sin = (struct sockaddr_in *)sa;
5563                                         if (sin->sin_addr.s_addr) {
5564                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5565                                                 SCTP_TCB_UNLOCK(stcb);
5566                                                 error = EINVAL;
5567                                                 break;
5568                                         }
5569                                 } else
5570 #endif
5571 #ifdef INET6
5572                                 if (sa->sa_family == AF_INET6) {
5573                                         struct sockaddr_in6 *sin6;
5574
5575                                         sin6 = (struct sockaddr_in6 *)sa;
5576                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5577                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5578                                                 SCTP_TCB_UNLOCK(stcb);
5579                                                 error = EINVAL;
5580                                                 break;
5581                                         }
5582                                 } else
5583 #endif
5584                                 {
5585                                         error = EAFNOSUPPORT;
5586                                         SCTP_TCB_UNLOCK(stcb);
5587                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5588                                         break;
5589                                 }
5590                         }
5591                         if (stcb) {
5592                                 if (net) {
5593                                         if (net->dest_state & SCTP_ADDR_PF) {
5594                                                 if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5595                                                     (net->failure_threshold <= thlds->spt_pathpfthld)) {
5596                                                         net->dest_state &= ~SCTP_ADDR_PF;
5597                                                 }
5598                                         } else {
5599                                                 if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5600                                                     (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5601                                                         net->dest_state |= SCTP_ADDR_PF;
5602                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5603                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5604                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5605                                                 }
5606                                         }
5607                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5608                                                 if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5609                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5610                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5611                                                 }
5612                                         } else {
5613                                                 if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5614                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5615                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5616                                                 }
5617                                         }
5618                                         net->failure_threshold = thlds->spt_pathmaxrxt;
5619                                         net->pf_threshold = thlds->spt_pathpfthld;
5620                                 } else {
5621                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5622                                                 if (net->dest_state & SCTP_ADDR_PF) {
5623                                                         if ((net->failure_threshold > thlds->spt_pathmaxrxt) ||
5624                                                             (net->failure_threshold <= thlds->spt_pathpfthld)) {
5625                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5626                                                         }
5627                                                 } else {
5628                                                         if ((net->failure_threshold > thlds->spt_pathpfthld) &&
5629                                                             (net->failure_threshold <= thlds->spt_pathmaxrxt)) {
5630                                                                 net->dest_state |= SCTP_ADDR_PF;
5631                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5632                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net, SCTP_FROM_SCTP_TIMER + SCTP_LOC_3);
5633                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5634                                                         }
5635                                                 }
5636                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5637                                                         if (net->failure_threshold > thlds->spt_pathmaxrxt) {
5638                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5639                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5640                                                         }
5641                                                 } else {
5642                                                         if (net->failure_threshold <= thlds->spt_pathmaxrxt) {
5643                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5644                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, SCTP_RESPONSE_TO_USER_REQ, net, SCTP_SO_LOCKED);
5645                                                         }
5646                                                 }
5647                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
5648                                                 net->pf_threshold = thlds->spt_pathpfthld;
5649                                         }
5650                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
5651                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
5652                                 }
5653                         } else {
5654                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5655                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5656                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
5657                                         SCTP_INP_WLOCK(inp);
5658                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
5659                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
5660                                         SCTP_INP_WUNLOCK(inp);
5661                                 } else {
5662                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5663                                         error = EINVAL;
5664                                 }
5665                         }
5666                         break;
5667                 }
5668         case SCTP_REMOTE_UDP_ENCAPS_PORT:
5669                 {
5670                         struct sctp_udpencaps *encaps;
5671                         struct sctp_nets *net;
5672
5673                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
5674                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
5675                         if (stcb) {
5676                                 net = sctp_findnet(stcb, (struct sockaddr *)&encaps->sue_address);
5677                         } else {
5678                                 /*
5679                                  * We increment here since
5680                                  * sctp_findassociation_ep_addr() wil do a
5681                                  * decrement if it finds the stcb as long as
5682                                  * the locked tcb (last argument) is NOT a
5683                                  * TCB.. aka NULL.
5684                                  */
5685                                 net = NULL;
5686                                 SCTP_INP_INCR_REF(inp);
5687                                 stcb = sctp_findassociation_ep_addr(&inp, (struct sockaddr *)&encaps->sue_address, &net, NULL, NULL);
5688                                 if (stcb == NULL) {
5689                                         SCTP_INP_DECR_REF(inp);
5690                                 }
5691                         }
5692                         if (stcb && (net == NULL)) {
5693                                 struct sockaddr *sa;
5694
5695                                 sa = (struct sockaddr *)&encaps->sue_address;
5696 #ifdef INET
5697                                 if (sa->sa_family == AF_INET) {
5698
5699                                         struct sockaddr_in *sin;
5700
5701                                         sin = (struct sockaddr_in *)sa;
5702                                         if (sin->sin_addr.s_addr) {
5703                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5704                                                 SCTP_TCB_UNLOCK(stcb);
5705                                                 error = EINVAL;
5706                                                 break;
5707                                         }
5708                                 } else
5709 #endif
5710 #ifdef INET6
5711                                 if (sa->sa_family == AF_INET6) {
5712                                         struct sockaddr_in6 *sin6;
5713
5714                                         sin6 = (struct sockaddr_in6 *)sa;
5715                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5716                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5717                                                 SCTP_TCB_UNLOCK(stcb);
5718                                                 error = EINVAL;
5719                                                 break;
5720                                         }
5721                                 } else
5722 #endif
5723                                 {
5724                                         error = EAFNOSUPPORT;
5725                                         SCTP_TCB_UNLOCK(stcb);
5726                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5727                                         break;
5728                                 }
5729                         }
5730                         if (stcb) {
5731                                 if (net) {
5732                                         net->port = encaps->sue_port;
5733                                 } else {
5734                                         stcb->asoc.port = encaps->sue_port;
5735                                 }
5736                                 SCTP_TCB_UNLOCK(stcb);
5737                         } else {
5738                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5739                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5740                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
5741                                         SCTP_INP_WLOCK(inp);
5742                                         inp->sctp_ep.port = encaps->sue_port;
5743                                         SCTP_INP_WUNLOCK(inp);
5744                                 } else {
5745                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5746                                         error = EINVAL;
5747                                 }
5748                         }
5749                         break;
5750                 }
5751         default:
5752                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
5753                 error = ENOPROTOOPT;
5754                 break;
5755         }                       /* end switch (opt) */
5756         return (error);
5757 }
5758
5759 int
5760 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
5761 {
5762         void *optval = NULL;
5763         size_t optsize = 0;
5764         struct sctp_inpcb *inp;
5765         void *p;
5766         int error = 0;
5767
5768         if (sopt->sopt_level != IPPROTO_SCTP) {
5769                 /* wrong proto level... send back up to IP */
5770 #ifdef INET6
5771                 if (INP_CHECK_SOCKAF(so, AF_INET6))
5772                         error = ip6_ctloutput(so, sopt);
5773 #endif                          /* INET6 */
5774 #if defined(INET) && defined (INET6)
5775                 else
5776 #endif
5777 #ifdef INET
5778                         error = ip_ctloutput(so, sopt);
5779 #endif
5780                 return (error);
5781         }
5782         inp = (struct sctp_inpcb *)so->so_pcb;
5783         optsize = sopt->sopt_valsize;
5784         if (optsize) {
5785                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
5786                 if (optval == NULL) {
5787                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
5788                         return (ENOBUFS);
5789                 }
5790                 error = sooptcopyin(sopt, optval, optsize, optsize);
5791                 if (error) {
5792                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
5793                         goto out;
5794                 }
5795         }
5796         p = (void *)sopt->sopt_td;
5797         if (sopt->sopt_dir == SOPT_SET) {
5798                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
5799         } else if (sopt->sopt_dir == SOPT_GET) {
5800                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
5801         } else {
5802                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5803                 error = EINVAL;
5804         }
5805         if ((error == 0) && (optval != NULL)) {
5806                 error = sooptcopyout(sopt, optval, optsize);
5807                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5808         } else if (optval != NULL) {
5809                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
5810         }
5811 out:
5812         return (error);
5813 }
5814
5815 #ifdef INET
5816 static int
5817 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
5818 {
5819         int error = 0;
5820         int create_lock_on = 0;
5821         uint32_t vrf_id;
5822         struct sctp_inpcb *inp;
5823         struct sctp_tcb *stcb = NULL;
5824
5825         inp = (struct sctp_inpcb *)so->so_pcb;
5826         if (inp == NULL) {
5827                 /* I made the same as TCP since we are not setup? */
5828                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5829                 return (ECONNRESET);
5830         }
5831         if (addr == NULL) {
5832                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5833                 return EINVAL;
5834         }
5835         switch (addr->sa_family) {
5836 #ifdef INET6
5837         case AF_INET6:
5838                 {
5839                         struct sockaddr_in6 *sin6p;
5840
5841                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
5842                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5843                                 return (EINVAL);
5844                         }
5845                         sin6p = (struct sockaddr_in6 *)addr;
5846                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
5847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5848                                 return (error);
5849                         }
5850                         break;
5851                 }
5852 #endif
5853 #ifdef INET
5854         case AF_INET:
5855                 {
5856                         struct sockaddr_in *sinp;
5857
5858                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
5859                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5860                                 return (EINVAL);
5861                         }
5862                         sinp = (struct sockaddr_in *)addr;
5863                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
5864                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5865                                 return (error);
5866                         }
5867                         break;
5868                 }
5869 #endif
5870         default:
5871                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
5872                 return (EAFNOSUPPORT);
5873         }
5874         SCTP_INP_INCR_REF(inp);
5875         SCTP_ASOC_CREATE_LOCK(inp);
5876         create_lock_on = 1;
5877
5878
5879         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
5880             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
5881                 /* Should I really unlock ? */
5882                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
5883                 error = EFAULT;
5884                 goto out_now;
5885         }
5886 #ifdef INET6
5887         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
5888             (addr->sa_family == AF_INET6)) {
5889                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5890                 error = EINVAL;
5891                 goto out_now;
5892         }
5893 #endif                          /* INET6 */
5894         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
5895             SCTP_PCB_FLAGS_UNBOUND) {
5896                 /* Bind a ephemeral port */
5897                 error = sctp_inpcb_bind(so, NULL, NULL, p);
5898                 if (error) {
5899                         goto out_now;
5900                 }
5901         }
5902         /* Now do we connect? */
5903         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
5904             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
5905                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5906                 error = EINVAL;
5907                 goto out_now;
5908         }
5909         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
5910             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
5911                 /* We are already connected AND the TCP model */
5912                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
5913                 error = EADDRINUSE;
5914                 goto out_now;
5915         }
5916         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
5917                 SCTP_INP_RLOCK(inp);
5918                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
5919                 SCTP_INP_RUNLOCK(inp);
5920         } else {
5921                 /*
5922                  * We increment here since sctp_findassociation_ep_addr()
5923                  * will do a decrement if it finds the stcb as long as the
5924                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
5925                  */
5926                 SCTP_INP_INCR_REF(inp);
5927                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
5928                 if (stcb == NULL) {
5929                         SCTP_INP_DECR_REF(inp);
5930                 } else {
5931                         SCTP_TCB_UNLOCK(stcb);
5932                 }
5933         }
5934         if (stcb != NULL) {
5935                 /* Already have or am bring up an association */
5936                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
5937                 error = EALREADY;
5938                 goto out_now;
5939         }
5940         vrf_id = inp->def_vrf_id;
5941         /* We are GOOD to go */
5942         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
5943         if (stcb == NULL) {
5944                 /* Gak! no memory */
5945                 goto out_now;
5946         }
5947         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
5948                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
5949                 /* Set the connected flag so we can queue data */
5950                 soisconnecting(so);
5951         }
5952         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
5953         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
5954
5955         /* initialize authentication parameters for the assoc */
5956         sctp_initialize_auth_params(inp, stcb);
5957
5958         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
5959         SCTP_TCB_UNLOCK(stcb);
5960 out_now:
5961         if (create_lock_on) {
5962                 SCTP_ASOC_CREATE_UNLOCK(inp);
5963         }
5964         SCTP_INP_DECR_REF(inp);
5965         return (error);
5966 }
5967
5968 #endif
5969
5970 int
5971 sctp_listen(struct socket *so, int backlog, struct thread *p)
5972 {
5973         /*
5974          * Note this module depends on the protocol processing being called
5975          * AFTER any socket level flags and backlog are applied to the
5976          * socket. The traditional way that the socket flags are applied is
5977          * AFTER protocol processing. We have made a change to the
5978          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
5979          * place if the socket API for SCTP is to work properly.
5980          */
5981
5982         int error = 0;
5983         struct sctp_inpcb *inp;
5984
5985         inp = (struct sctp_inpcb *)so->so_pcb;
5986         if (inp == NULL) {
5987                 /* I made the same as TCP since we are not setup? */
5988                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5989                 return (ECONNRESET);
5990         }
5991         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
5992                 /* See if we have a listener */
5993                 struct sctp_inpcb *tinp;
5994                 union sctp_sockstore store, *sp;
5995
5996                 sp = &store;
5997                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5998                         /* not bound all */
5999                         struct sctp_laddr *laddr;
6000
6001                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6002                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
6003                                 switch (sp->sa.sa_family) {
6004 #ifdef INET
6005                                 case AF_INET:
6006                                         sp->sin.sin_port = inp->sctp_lport;
6007                                         break;
6008 #endif
6009 #ifdef INET6
6010                                 case AF_INET6:
6011                                         sp->sin6.sin6_port = inp->sctp_lport;
6012                                         break;
6013 #endif
6014                                 default:
6015                                         break;
6016                                 }
6017                                 tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6018                                 if (tinp && (tinp != inp) &&
6019                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6020                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6021                                     (tinp->sctp_socket->so_qlimit)) {
6022                                         /*
6023                                          * we have a listener already and
6024                                          * its not this inp.
6025                                          */
6026                                         SCTP_INP_DECR_REF(tinp);
6027                                         return (EADDRINUSE);
6028                                 } else if (tinp) {
6029                                         SCTP_INP_DECR_REF(tinp);
6030                                 }
6031                         }
6032                 } else {
6033                         /* Setup a local addr bound all */
6034                         memset(&store, 0, sizeof(store));
6035                         switch (sp->sa.sa_family) {
6036 #ifdef INET
6037                         case AF_INET:
6038                                 store.sin.sin_port = inp->sctp_lport;
6039                                 break;
6040 #endif
6041 #ifdef INET6
6042                         case AF_INET6:
6043                                 sp->sin6.sin6_port = inp->sctp_lport;
6044                                 break;
6045 #endif
6046                         default:
6047                                 break;
6048                         }
6049 #ifdef INET6
6050                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
6051                                 store.sa.sa_family = AF_INET6;
6052                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
6053                         }
6054 #endif
6055 #ifdef INET
6056                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
6057                                 store.sa.sa_family = AF_INET;
6058                                 store.sa.sa_len = sizeof(struct sockaddr_in);
6059                         }
6060 #endif
6061                         tinp = sctp_pcb_findep(&sp->sa, 0, 0, inp->def_vrf_id);
6062                         if (tinp && (tinp != inp) &&
6063                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
6064                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
6065                             (tinp->sctp_socket->so_qlimit)) {
6066                                 /*
6067                                  * we have a listener already and its not
6068                                  * this inp.
6069                                  */
6070                                 SCTP_INP_DECR_REF(tinp);
6071                                 return (EADDRINUSE);
6072                         } else if (tinp) {
6073                                 SCTP_INP_DECR_REF(inp);
6074                         }
6075                 }
6076         }
6077         SCTP_INP_RLOCK(inp);
6078 #ifdef SCTP_LOCK_LOGGING
6079         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
6080                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
6081         }
6082 #endif
6083         SOCK_LOCK(so);
6084         error = solisten_proto_check(so);
6085         if (error) {
6086                 SOCK_UNLOCK(so);
6087                 SCTP_INP_RUNLOCK(inp);
6088                 return (error);
6089         }
6090         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
6091             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
6092                 /*
6093                  * The unlucky case - We are in the tcp pool with this guy.
6094                  * - Someone else is in the main inp slot. - We must move
6095                  * this guy (the listener) to the main slot - We must then
6096                  * move the guy that was listener to the TCP Pool.
6097                  */
6098                 if (sctp_swap_inpcb_for_listen(inp)) {
6099                         goto in_use;
6100                 }
6101         }
6102         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6103             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6104                 /* We are already connected AND the TCP model */
6105 in_use:
6106                 SCTP_INP_RUNLOCK(inp);
6107                 SOCK_UNLOCK(so);
6108                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6109                 return (EADDRINUSE);
6110         }
6111         SCTP_INP_RUNLOCK(inp);
6112         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
6113                 /* We must do a bind. */
6114                 SOCK_UNLOCK(so);
6115                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
6116                         /* bind error, probably perm */
6117                         return (error);
6118                 }
6119                 SOCK_LOCK(so);
6120         }
6121         /* It appears for 7.0 and on, we must always call this. */
6122         solisten_proto(so, backlog);
6123         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6124                 /* remove the ACCEPTCONN flag for one-to-many sockets */
6125                 so->so_options &= ~SO_ACCEPTCONN;
6126         }
6127         if (backlog == 0) {
6128                 /* turning off listen */
6129                 so->so_options &= ~SO_ACCEPTCONN;
6130         }
6131         SOCK_UNLOCK(so);
6132         return (error);
6133 }
6134
6135 static int sctp_defered_wakeup_cnt = 0;
6136
6137 int
6138 sctp_accept(struct socket *so, struct sockaddr **addr)
6139 {
6140         struct sctp_tcb *stcb;
6141         struct sctp_inpcb *inp;
6142         union sctp_sockstore store;
6143
6144 #ifdef INET6
6145         int error;
6146
6147 #endif
6148         inp = (struct sctp_inpcb *)so->so_pcb;
6149
6150         if (inp == NULL) {
6151                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6152                 return (ECONNRESET);
6153         }
6154         SCTP_INP_RLOCK(inp);
6155         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
6156                 SCTP_INP_RUNLOCK(inp);
6157                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
6158                 return (EOPNOTSUPP);
6159         }
6160         if (so->so_state & SS_ISDISCONNECTED) {
6161                 SCTP_INP_RUNLOCK(inp);
6162                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
6163                 return (ECONNABORTED);
6164         }
6165         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6166         if (stcb == NULL) {
6167                 SCTP_INP_RUNLOCK(inp);
6168                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6169                 return (ECONNRESET);
6170         }
6171         SCTP_TCB_LOCK(stcb);
6172         SCTP_INP_RUNLOCK(inp);
6173         store = stcb->asoc.primary_destination->ro._l_addr;
6174         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
6175         SCTP_TCB_UNLOCK(stcb);
6176         switch (store.sa.sa_family) {
6177 #ifdef INET
6178         case AF_INET:
6179                 {
6180                         struct sockaddr_in *sin;
6181
6182                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6183                         if (sin == NULL)
6184                                 return (ENOMEM);
6185                         sin->sin_family = AF_INET;
6186                         sin->sin_len = sizeof(*sin);
6187                         sin->sin_port = ((struct sockaddr_in *)&store)->sin_port;
6188                         sin->sin_addr = ((struct sockaddr_in *)&store)->sin_addr;
6189                         *addr = (struct sockaddr *)sin;
6190                         break;
6191                 }
6192 #endif
6193 #ifdef INET6
6194         case AF_INET6:
6195                 {
6196                         struct sockaddr_in6 *sin6;
6197
6198                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
6199                         if (sin6 == NULL)
6200                                 return (ENOMEM);
6201                         sin6->sin6_family = AF_INET6;
6202                         sin6->sin6_len = sizeof(*sin6);
6203                         sin6->sin6_port = ((struct sockaddr_in6 *)&store)->sin6_port;
6204
6205                         sin6->sin6_addr = ((struct sockaddr_in6 *)&store)->sin6_addr;
6206                         if ((error = sa6_recoverscope(sin6)) != 0) {
6207                                 SCTP_FREE_SONAME(sin6);
6208                                 return (error);
6209                         }
6210                         *addr = (struct sockaddr *)sin6;
6211                         break;
6212                 }
6213 #endif
6214         default:
6215                 /* TSNH */
6216                 break;
6217         }
6218         /* Wake any delayed sleep action */
6219         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
6220                 SCTP_INP_WLOCK(inp);
6221                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
6222                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
6223                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
6224                         SCTP_INP_WUNLOCK(inp);
6225                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
6226                         if (sowriteable(inp->sctp_socket)) {
6227                                 sowwakeup_locked(inp->sctp_socket);
6228                         } else {
6229                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
6230                         }
6231                         SCTP_INP_WLOCK(inp);
6232                 }
6233                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
6234                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
6235                         SCTP_INP_WUNLOCK(inp);
6236                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
6237                         if (soreadable(inp->sctp_socket)) {
6238                                 sctp_defered_wakeup_cnt++;
6239                                 sorwakeup_locked(inp->sctp_socket);
6240                         } else {
6241                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
6242                         }
6243                         SCTP_INP_WLOCK(inp);
6244                 }
6245                 SCTP_INP_WUNLOCK(inp);
6246         }
6247         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
6248                 SCTP_TCB_LOCK(stcb);
6249                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
6250         }
6251         return (0);
6252 }
6253
6254 #ifdef INET
6255 int
6256 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
6257 {
6258         struct sockaddr_in *sin;
6259         uint32_t vrf_id;
6260         struct sctp_inpcb *inp;
6261         struct sctp_ifa *sctp_ifa;
6262
6263         /*
6264          * Do the malloc first in case it blocks.
6265          */
6266         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6267         if (sin == NULL)
6268                 return (ENOMEM);
6269         sin->sin_family = AF_INET;
6270         sin->sin_len = sizeof(*sin);
6271         inp = (struct sctp_inpcb *)so->so_pcb;
6272         if (!inp) {
6273                 SCTP_FREE_SONAME(sin);
6274                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6275                 return (ECONNRESET);
6276         }
6277         SCTP_INP_RLOCK(inp);
6278         sin->sin_port = inp->sctp_lport;
6279         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
6280                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6281                         struct sctp_tcb *stcb;
6282                         struct sockaddr_in *sin_a;
6283                         struct sctp_nets *net;
6284                         int fnd;
6285
6286                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6287                         if (stcb == NULL) {
6288                                 goto notConn;
6289                         }
6290                         fnd = 0;
6291                         sin_a = NULL;
6292                         SCTP_TCB_LOCK(stcb);
6293                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6294                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6295                                 if (sin_a == NULL)
6296                                         /* this will make coverity happy */
6297                                         continue;
6298
6299                                 if (sin_a->sin_family == AF_INET) {
6300                                         fnd = 1;
6301                                         break;
6302                                 }
6303                         }
6304                         if ((!fnd) || (sin_a == NULL)) {
6305                                 /* punt */
6306                                 SCTP_TCB_UNLOCK(stcb);
6307                                 goto notConn;
6308                         }
6309                         vrf_id = inp->def_vrf_id;
6310                         sctp_ifa = sctp_source_address_selection(inp,
6311                             stcb,
6312                             (sctp_route_t *) & net->ro,
6313                             net, 0, vrf_id);
6314                         if (sctp_ifa) {
6315                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
6316                                 sctp_free_ifa(sctp_ifa);
6317                         }
6318                         SCTP_TCB_UNLOCK(stcb);
6319                 } else {
6320                         /* For the bound all case you get back 0 */
6321         notConn:
6322                         sin->sin_addr.s_addr = 0;
6323                 }
6324
6325         } else {
6326                 /* Take the first IPv4 address in the list */
6327                 struct sctp_laddr *laddr;
6328                 int fnd = 0;
6329
6330                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
6331                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
6332                                 struct sockaddr_in *sin_a;
6333
6334                                 sin_a = (struct sockaddr_in *)&laddr->ifa->address.sa;
6335                                 sin->sin_addr = sin_a->sin_addr;
6336                                 fnd = 1;
6337                                 break;
6338                         }
6339                 }
6340                 if (!fnd) {
6341                         SCTP_FREE_SONAME(sin);
6342                         SCTP_INP_RUNLOCK(inp);
6343                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6344                         return (ENOENT);
6345                 }
6346         }
6347         SCTP_INP_RUNLOCK(inp);
6348         (*addr) = (struct sockaddr *)sin;
6349         return (0);
6350 }
6351
6352 int
6353 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
6354 {
6355         struct sockaddr_in *sin;
6356         int fnd;
6357         struct sockaddr_in *sin_a;
6358         struct sctp_inpcb *inp;
6359         struct sctp_tcb *stcb;
6360         struct sctp_nets *net;
6361
6362         /* Do the malloc first in case it blocks. */
6363         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
6364         if (sin == NULL)
6365                 return (ENOMEM);
6366         sin->sin_family = AF_INET;
6367         sin->sin_len = sizeof(*sin);
6368
6369         inp = (struct sctp_inpcb *)so->so_pcb;
6370         if ((inp == NULL) ||
6371             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
6372                 /* UDP type and listeners will drop out here */
6373                 SCTP_FREE_SONAME(sin);
6374                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
6375                 return (ENOTCONN);
6376         }
6377         SCTP_INP_RLOCK(inp);
6378         stcb = LIST_FIRST(&inp->sctp_asoc_list);
6379         if (stcb) {
6380                 SCTP_TCB_LOCK(stcb);
6381         }
6382         SCTP_INP_RUNLOCK(inp);
6383         if (stcb == NULL) {
6384                 SCTP_FREE_SONAME(sin);
6385                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6386                 return (ECONNRESET);
6387         }
6388         fnd = 0;
6389         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6390                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
6391                 if (sin_a->sin_family == AF_INET) {
6392                         fnd = 1;
6393                         sin->sin_port = stcb->rport;
6394                         sin->sin_addr = sin_a->sin_addr;
6395                         break;
6396                 }
6397         }
6398         SCTP_TCB_UNLOCK(stcb);
6399         if (!fnd) {
6400                 /* No IPv4 address */
6401                 SCTP_FREE_SONAME(sin);
6402                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
6403                 return (ENOENT);
6404         }
6405         (*addr) = (struct sockaddr *)sin;
6406         return (0);
6407 }
6408
6409 #ifdef INET
6410 struct pr_usrreqs sctp_usrreqs = {
6411         .pru_abort = sctp_abort,
6412         .pru_accept = sctp_accept,
6413         .pru_attach = sctp_attach,
6414         .pru_bind = sctp_bind,
6415         .pru_connect = sctp_connect,
6416         .pru_control = in_control,
6417         .pru_close = sctp_close,
6418         .pru_detach = sctp_close,
6419         .pru_sopoll = sopoll_generic,
6420         .pru_flush = sctp_flush,
6421         .pru_disconnect = sctp_disconnect,
6422         .pru_listen = sctp_listen,
6423         .pru_peeraddr = sctp_peeraddr,
6424         .pru_send = sctp_sendm,
6425         .pru_shutdown = sctp_shutdown,
6426         .pru_sockaddr = sctp_ingetaddr,
6427         .pru_sosend = sctp_sosend,
6428         .pru_soreceive = sctp_soreceive
6429 };
6430
6431 #endif
6432 #endif