sys/netinet/sctp_usrreq.c

   1 /*-
   2  * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved.
   3  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
   4  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * a) Redistributions of source code must retain the above copyright notice,
  10  *    this list of conditions and the following disclaimer.
  11  *
  12  * b) Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in
  14  *    the documentation and/or other materials provided with the distribution.
  15  *
  16  * c) Neither the name of Cisco Systems, Inc. nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  24  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  30  * THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 #include <netinet/sctp_os.h>
  37 #include <sys/proc.h>
  38 #include <netinet/sctp_pcb.h>
  39 #include <netinet/sctp_header.h>
  40 #include <netinet/sctp_var.h>
  41 #ifdef INET6
  42 #include <netinet6/sctp6_var.h>
  43 #endif
  44 #include <netinet/sctp_sysctl.h>
  45 #include <netinet/sctp_output.h>
  46 #include <netinet/sctp_uio.h>
  47 #include <netinet/sctp_asconf.h>
  48 #include <netinet/sctputil.h>
  49 #include <netinet/sctp_indata.h>
  50 #include <netinet/sctp_timer.h>
  51 #include <netinet/sctp_auth.h>
  52 #include <netinet/sctp_bsd_addr.h>
  53 #include <netinet/udp.h>
  54
  55
  56
  57 extern struct sctp_cc_functions sctp_cc_functions[];
  58 extern struct sctp_ss_functions sctp_ss_functions[];
  59
  60 void
  61 sctp_init(void)
  62 {
  63         u_long sb_max_adj;
  64
  65         /* Initialize and modify the sysctled variables */
  66         sctp_init_sysctls();
  67         if ((nmbclusters / 8) > SCTP_ASOC_MAX_CHUNKS_ON_QUEUE)
  68                 SCTP_BASE_SYSCTL(sctp_max_chunks_on_queue) = (nmbclusters / 8);
  69         /*
  70          * Allow a user to take no more than 1/2 the number of clusters or
  71          * the SB_MAX whichever is smaller for the send window.
  72          */
  73         sb_max_adj = (u_long)((u_quad_t) (SB_MAX) * MCLBYTES / (MSIZE + MCLBYTES));
  74         SCTP_BASE_SYSCTL(sctp_sendspace) = min(sb_max_adj,
  75             (((uint32_t) nmbclusters / 2) * SCTP_DEFAULT_MAXSEGMENT));
  76         /*
  77          * Now for the recv window, should we take the same amount? or
  78          * should I do 1/2 the SB_MAX instead in the SB_MAX min above. For
  79          * now I will just copy.
  80          */
  81         SCTP_BASE_SYSCTL(sctp_recvspace) = SCTP_BASE_SYSCTL(sctp_sendspace);
  82         SCTP_BASE_VAR(first_time) = 0;
  83         SCTP_BASE_VAR(sctp_pcb_initialized) = 0;
  84         sctp_pcb_init();
  85 #if defined(SCTP_PACKET_LOGGING)
  86         SCTP_BASE_VAR(packet_log_writers) = 0;
  87         SCTP_BASE_VAR(packet_log_end) = 0;
  88         bzero(&SCTP_BASE_VAR(packet_log_buffer), SCTP_PACKET_LOG_SIZE);
  89 #endif
  90 }
  91
  92 void
  93 sctp_finish(void)
  94 {
  95         sctp_pcb_finish();
  96 }
  97
  98
  99
 100 void
 101 sctp_pathmtu_adjustment(struct sctp_tcb *stcb, uint16_t nxtsz)
 102 {
 103         struct sctp_tmit_chunk *chk;
 104         uint16_t overhead;
 105
 106         /* Adjust that too */
 107         stcb->asoc.smallest_mtu = nxtsz;
 108         /* now off to subtract IP_DF flag if needed */
 109         overhead = IP_HDR_SIZE;
 110         if (sctp_auth_is_required_chunk(SCTP_DATA, stcb->asoc.peer_auth_chunks)) {
 111                 overhead += sctp_get_auth_chunk_len(stcb->asoc.peer_hmac_id);
 112         }
 113         TAILQ_FOREACH(chk, &stcb->asoc.send_queue, sctp_next) {
 114                 if ((chk->send_size + overhead) > nxtsz) {
 115                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 116                 }
 117         }
 118         TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) {
 119                 if ((chk->send_size + overhead) > nxtsz) {
 120                         /*
 121                          * For this guy we also mark for immediate resend
 122                          * since we sent to big of chunk
 123                          */
 124                         chk->flags |= CHUNK_FLAGS_FRAGMENT_OK;
 125                         if (chk->sent < SCTP_DATAGRAM_RESEND) {
 126                                 sctp_flight_size_decrease(chk);
 127                                 sctp_total_flight_decrease(stcb, chk);
 128                                 chk->sent = SCTP_DATAGRAM_RESEND;
 129                                 sctp_ucount_incr(stcb->asoc.sent_queue_retran_cnt);
 130                                 chk->rec.data.doing_fast_retransmit = 0;
 131                                 if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_FLIGHT_LOGGING_ENABLE) {
 132                                         sctp_misc_ints(SCTP_FLIGHT_LOG_DOWN_PMTU,
 133                                             chk->whoTo->flight_size,
 134                                             chk->book_size,
 135                                             (uintptr_t) chk->whoTo,
 136                                             chk->rec.data.TSN_seq);
 137                                 }
 138                                 /* Clear any time so NO RTT is being done */
 139                                 chk->do_rtt = 0;
 140                         }
 141                 }
 142         }
 143 }
 144
 145 #ifdef INET
 146 static void
 147 sctp_notify_mbuf(struct sctp_inpcb *inp,
 148     struct sctp_tcb *stcb,
 149     struct sctp_nets *net,
 150     struct ip *ip,
 151     struct sctphdr *sh)
 152 {
 153         struct icmp *icmph;
 154         int totsz, tmr_stopped = 0;
 155         uint16_t nxtsz;
 156
 157         /* protection */
 158         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 159             (ip == NULL) || (sh == NULL)) {
 160                 if (stcb != NULL) {
 161                         SCTP_TCB_UNLOCK(stcb);
 162                 }
 163                 return;
 164         }
 165         /* First job is to verify the vtag matches what I would send */
 166         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 167                 SCTP_TCB_UNLOCK(stcb);
 168                 return;
 169         }
 170         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 171             sizeof(struct ip)));
 172         if (icmph->icmp_type != ICMP_UNREACH) {
 173                 /* We only care about unreachable */
 174                 SCTP_TCB_UNLOCK(stcb);
 175                 return;
 176         }
 177         if (icmph->icmp_code != ICMP_UNREACH_NEEDFRAG) {
 178                 /* not a unreachable message due to frag. */
 179                 SCTP_TCB_UNLOCK(stcb);
 180                 return;
 181         }
 182         totsz = ntohs(ip->ip_len);
 183
 184         nxtsz = ntohs(icmph->icmp_nextmtu);
 185         if (nxtsz == 0) {
 186                 /*
 187                  * old type router that does not tell us what the next size
 188                  * mtu is. Rats we will have to guess (in a educated fashion
 189                  * of course)
 190                  */
 191                 nxtsz = sctp_get_prev_mtu(totsz);
 192         }
 193         /* Stop any PMTU timer */
 194         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
 195                 tmr_stopped = 1;
 196                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
 197                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_1);
 198         }
 199         /* Adjust destination size limit */
 200         if (net->mtu > nxtsz) {
 201                 net->mtu = nxtsz;
 202                 if (net->port) {
 203                         net->mtu -= sizeof(struct udphdr);
 204                 }
 205         }
 206         /* now what about the ep? */
 207         if (stcb->asoc.smallest_mtu > nxtsz) {
 208                 sctp_pathmtu_adjustment(stcb, nxtsz);
 209         }
 210         if (tmr_stopped)
 211                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
 212
 213         SCTP_TCB_UNLOCK(stcb);
 214 }
 215
 216 void
 217 sctp_notify(struct sctp_inpcb *inp,
 218     struct ip *ip,
 219     struct sctphdr *sh,
 220     struct sockaddr *to,
 221     struct sctp_tcb *stcb,
 222     struct sctp_nets *net)
 223 {
 224 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 225         struct socket *so;
 226
 227 #endif
 228         struct icmp *icmph;
 229
 230         /* protection */
 231         if ((inp == NULL) || (stcb == NULL) || (net == NULL) ||
 232             (sh == NULL) || (to == NULL)) {
 233                 if (stcb)
 234                         SCTP_TCB_UNLOCK(stcb);
 235                 return;
 236         }
 237         /* First job is to verify the vtag matches what I would send */
 238         if (ntohl(sh->v_tag) != (stcb->asoc.peer_vtag)) {
 239                 SCTP_TCB_UNLOCK(stcb);
 240                 return;
 241         }
 242         icmph = (struct icmp *)((caddr_t)ip - (sizeof(struct icmp) -
 243             sizeof(struct ip)));
 244         if (icmph->icmp_type != ICMP_UNREACH) {
 245                 /* We only care about unreachable */
 246                 SCTP_TCB_UNLOCK(stcb);
 247                 return;
 248         }
 249         if ((icmph->icmp_code == ICMP_UNREACH_NET) ||
 250             (icmph->icmp_code == ICMP_UNREACH_HOST) ||
 251             (icmph->icmp_code == ICMP_UNREACH_NET_UNKNOWN) ||
 252             (icmph->icmp_code == ICMP_UNREACH_HOST_UNKNOWN) ||
 253             (icmph->icmp_code == ICMP_UNREACH_ISOLATED) ||
 254             (icmph->icmp_code == ICMP_UNREACH_NET_PROHIB) ||
 255             (icmph->icmp_code == ICMP_UNREACH_HOST_PROHIB) ||
 256             (icmph->icmp_code == ICMP_UNREACH_FILTER_PROHIB)) {
 257
 258                 /*
 259                  * Hmm reachablity problems we must examine closely. If its
 260                  * not reachable, we may have lost a network. Or if there is
 261                  * NO protocol at the other end named SCTP. well we consider
 262                  * it a OOTB abort.
 263                  */
 264                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
 265                         /* Ok that destination is NOT reachable */
 266                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
 267                         net->dest_state &= ~SCTP_ADDR_PF;
 268                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN,
 269                             stcb, 0,
 270                             (void *)net, SCTP_SO_NOT_LOCKED);
 271                 }
 272                 SCTP_TCB_UNLOCK(stcb);
 273         } else if ((icmph->icmp_code == ICMP_UNREACH_PROTOCOL) ||
 274             (icmph->icmp_code == ICMP_UNREACH_PORT)) {
 275                 /*
 276                  * Here the peer is either playing tricks on us, including
 277                  * an address that belongs to someone who does not support
 278                  * SCTP OR was a userland implementation that shutdown and
 279                  * now is dead. In either case treat it like a OOTB abort
 280                  * with no TCB
 281                  */
 282                 sctp_abort_notification(stcb, 1, 0, NULL, SCTP_SO_NOT_LOCKED);
 283 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 284                 so = SCTP_INP_SO(inp);
 285                 atomic_add_int(&stcb->asoc.refcnt, 1);
 286                 SCTP_TCB_UNLOCK(stcb);
 287                 SCTP_SOCKET_LOCK(so, 1);
 288                 SCTP_TCB_LOCK(stcb);
 289                 atomic_subtract_int(&stcb->asoc.refcnt, 1);
 290 #endif
 291                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 292                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_2);
 293 #if defined(__APPLE__) || defined(SCTP_SO_LOCK_TESTING)
 294                 SCTP_SOCKET_UNLOCK(so, 1);
 295                 /* SCTP_TCB_UNLOCK(stcb); MT: I think this is not needed. */
 296 #endif
 297                 /* no need to unlock here, since the TCB is gone */
 298         } else {
 299                 SCTP_TCB_UNLOCK(stcb);
 300         }
 301 }
 302
 303 #endif
 304
 305 #ifdef INET
 306 void
 307 sctp_ctlinput(cmd, sa, vip)
 308         int cmd;
 309         struct sockaddr *sa;
 310         void *vip;
 311 {
 312         struct ip *ip = vip;
 313         struct sctphdr *sh;
 314         uint32_t vrf_id;
 315
 316         /* FIX, for non-bsd is this right? */
 317         vrf_id = SCTP_DEFAULT_VRFID;
 318         if (sa->sa_family != AF_INET ||
 319             ((struct sockaddr_in *)sa)->sin_addr.s_addr == INADDR_ANY) {
 320                 return;
 321         }
 322         if (PRC_IS_REDIRECT(cmd)) {
 323                 ip = 0;
 324         } else if ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0) {
 325                 return;
 326         }
 327         if (ip) {
 328                 struct sctp_inpcb *inp = NULL;
 329                 struct sctp_tcb *stcb = NULL;
 330                 struct sctp_nets *net = NULL;
 331                 struct sockaddr_in to, from;
 332
 333                 sh = (struct sctphdr *)((caddr_t)ip + (ip->ip_hl << 2));
 334                 bzero(&to, sizeof(to));
 335                 bzero(&from, sizeof(from));
 336                 from.sin_family = to.sin_family = AF_INET;
 337                 from.sin_len = to.sin_len = sizeof(to);
 338                 from.sin_port = sh->src_port;
 339                 from.sin_addr = ip->ip_src;
 340                 to.sin_port = sh->dest_port;
 341                 to.sin_addr = ip->ip_dst;
 342
 343                 /*
 344                  * 'to' holds the dest of the packet that failed to be sent.
 345                  * 'from' holds our local endpoint address. Thus we reverse
 346                  * the to and the from in the lookup.
 347                  */
 348                 stcb = sctp_findassociation_addr_sa((struct sockaddr *)&to,
 349                     (struct sockaddr *)&from,
 350                     &inp, &net, 1, vrf_id);
 351                 if (stcb != NULL && inp && (inp->sctp_socket != NULL)) {
 352                         if (cmd != PRC_MSGSIZE) {
 353                                 sctp_notify(inp, ip, sh,
 354                                     (struct sockaddr *)&to, stcb,
 355                                     net);
 356                         } else {
 357                                 /* handle possible ICMP size messages */
 358                                 sctp_notify_mbuf(inp, stcb, net, ip, sh);
 359                         }
 360                 } else {
 361                         if ((stcb == NULL) && (inp != NULL)) {
 362                                 /* reduce ref-count */
 363                                 SCTP_INP_WLOCK(inp);
 364                                 SCTP_INP_DECR_REF(inp);
 365                                 SCTP_INP_WUNLOCK(inp);
 366                         }
 367                         if (stcb) {
 368                                 SCTP_TCB_UNLOCK(stcb);
 369                         }
 370                 }
 371         }
 372         return;
 373 }
 374
 375 #endif
 376
 377 static int
 378 sctp_getcred(SYSCTL_HANDLER_ARGS)
 379 {
 380         struct xucred xuc;
 381         struct sockaddr_in addrs[2];
 382         struct sctp_inpcb *inp;
 383         struct sctp_nets *net;
 384         struct sctp_tcb *stcb;
 385         int error;
 386         uint32_t vrf_id;
 387
 388         /* FIX, for non-bsd is this right? */
 389         vrf_id = SCTP_DEFAULT_VRFID;
 390
 391         error = priv_check(req->td, PRIV_NETINET_GETCRED);
 392
 393         if (error)
 394                 return (error);
 395
 396         error = SYSCTL_IN(req, addrs, sizeof(addrs));
 397         if (error)
 398                 return (error);
 399
 400         stcb = sctp_findassociation_addr_sa(sintosa(&addrs[1]),
 401             sintosa(&addrs[0]),
 402             &inp, &net, 1, vrf_id);
 403         if (stcb == NULL || inp == NULL || inp->sctp_socket == NULL) {
 404                 if ((inp != NULL) && (stcb == NULL)) {
 405                         /* reduce ref-count */
 406                         SCTP_INP_WLOCK(inp);
 407                         SCTP_INP_DECR_REF(inp);
 408                         goto cred_can_cont;
 409                 }
 410                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
 411                 error = ENOENT;
 412                 goto out;
 413         }
 414         SCTP_TCB_UNLOCK(stcb);
 415         /*
 416          * We use the write lock here, only since in the error leg we need
 417          * it. If we used RLOCK, then we would have to
 418          * wlock/decr/unlock/rlock. Which in theory could create a hole.
 419          * Better to use higher wlock.
 420          */
 421         SCTP_INP_WLOCK(inp);
 422 cred_can_cont:
 423         error = cr_canseesocket(req->td->td_ucred, inp->sctp_socket);
 424         if (error) {
 425                 SCTP_INP_WUNLOCK(inp);
 426                 goto out;
 427         }
 428         cru2x(inp->sctp_socket->so_cred, &xuc);
 429         SCTP_INP_WUNLOCK(inp);
 430         error = SYSCTL_OUT(req, &xuc, sizeof(struct xucred));
 431 out:
 432         return (error);
 433 }
 434
 435 SYSCTL_PROC(_net_inet_sctp, OID_AUTO, getcred, CTLTYPE_OPAQUE | CTLFLAG_RW,
 436     0, 0, sctp_getcred, "S,ucred", "Get the ucred of a SCTP connection");
 437
 438
 439 #ifdef INET
 440 static void
 441 sctp_abort(struct socket *so)
 442 {
 443         struct sctp_inpcb *inp;
 444         uint32_t flags;
 445
 446         inp = (struct sctp_inpcb *)so->so_pcb;
 447         if (inp == NULL) {
 448                 return;
 449         }
 450 sctp_must_try_again:
 451         flags = inp->sctp_flags;
 452 #ifdef SCTP_LOG_CLOSING
 453         sctp_log_closing(inp, NULL, 17);
 454 #endif
 455         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 456             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 457 #ifdef SCTP_LOG_CLOSING
 458                 sctp_log_closing(inp, NULL, 16);
 459 #endif
 460                 sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 461                     SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 462                 SOCK_LOCK(so);
 463                 SCTP_SB_CLEAR(so->so_snd);
 464                 /*
 465                  * same for the rcv ones, they are only here for the
 466                  * accounting/select.
 467                  */
 468                 SCTP_SB_CLEAR(so->so_rcv);
 469
 470                 /* Now null out the reference, we are completely detached. */
 471                 so->so_pcb = NULL;
 472                 SOCK_UNLOCK(so);
 473         } else {
 474                 flags = inp->sctp_flags;
 475                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 476                         goto sctp_must_try_again;
 477                 }
 478         }
 479         return;
 480 }
 481
 482 static int
 483 sctp_attach(struct socket *so, int proto SCTP_UNUSED, struct thread *p SCTP_UNUSED)
 484 {
 485         struct sctp_inpcb *inp;
 486         struct inpcb *ip_inp;
 487         int error;
 488         uint32_t vrf_id = SCTP_DEFAULT_VRFID;
 489
 490 #ifdef IPSEC
 491         uint32_t flags;
 492
 493 #endif
 494
 495         inp = (struct sctp_inpcb *)so->so_pcb;
 496         if (inp != 0) {
 497                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 498                 return (EINVAL);
 499         }
 500         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 501                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 502                 if (error) {
 503                         return (error);
 504                 }
 505         }
 506         error = sctp_inpcb_alloc(so, vrf_id);
 507         if (error) {
 508                 return (error);
 509         }
 510         inp = (struct sctp_inpcb *)so->so_pcb;
 511         SCTP_INP_WLOCK(inp);
 512         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 513         ip_inp = &inp->ip_inp.inp;
 514         ip_inp->inp_vflag |= INP_IPV4;
 515         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 516 #ifdef IPSEC
 517         error = ipsec_init_policy(so, &ip_inp->inp_sp);
 518 #ifdef SCTP_LOG_CLOSING
 519         sctp_log_closing(inp, NULL, 17);
 520 #endif
 521         if (error != 0) {
 522 try_again:
 523                 flags = inp->sctp_flags;
 524                 if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 525                     (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 526 #ifdef SCTP_LOG_CLOSING
 527                         sctp_log_closing(inp, NULL, 15);
 528 #endif
 529                         SCTP_INP_WUNLOCK(inp);
 530                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 531                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 532                 } else {
 533                         flags = inp->sctp_flags;
 534                         if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 535                                 goto try_again;
 536                         } else {
 537                                 SCTP_INP_WUNLOCK(inp);
 538                         }
 539                 }
 540                 return (error);
 541         }
 542 #endif                          /* IPSEC */
 543         SCTP_INP_WUNLOCK(inp);
 544         return (0);
 545 }
 546
 547 static int
 548 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 549 {
 550         struct sctp_inpcb *inp;
 551
 552         inp = (struct sctp_inpcb *)so->so_pcb;
 553         if (inp == NULL) {
 554                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 555                 return (EINVAL);
 556         }
 557         if (addr != NULL) {
 558                 if ((addr->sa_family != AF_INET) ||
 559                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 560                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 561                         return (EINVAL);
 562                 }
 563         }
 564         return (sctp_inpcb_bind(so, addr, NULL, p));
 565 }
 566
 567 #endif
 568 void
 569 sctp_close(struct socket *so)
 570 {
 571         struct sctp_inpcb *inp;
 572         uint32_t flags;
 573
 574         inp = (struct sctp_inpcb *)so->so_pcb;
 575         if (inp == NULL)
 576                 return;
 577
 578         /*
 579          * Inform all the lower layer assoc that we are done.
 580          */
 581 sctp_must_try_again:
 582         flags = inp->sctp_flags;
 583 #ifdef SCTP_LOG_CLOSING
 584         sctp_log_closing(inp, NULL, 17);
 585 #endif
 586         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 587             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 588                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 589                     (so->so_rcv.sb_cc > 0)) {
 590 #ifdef SCTP_LOG_CLOSING
 591                         sctp_log_closing(inp, NULL, 13);
 592 #endif
 593                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 594                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 595                 } else {
 596 #ifdef SCTP_LOG_CLOSING
 597                         sctp_log_closing(inp, NULL, 14);
 598 #endif
 599                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 600                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 601                 }
 602                 /*
 603                  * The socket is now detached, no matter what the state of
 604                  * the SCTP association.
 605                  */
 606                 SOCK_LOCK(so);
 607                 SCTP_SB_CLEAR(so->so_snd);
 608                 /*
 609                  * same for the rcv ones, they are only here for the
 610                  * accounting/select.
 611                  */
 612                 SCTP_SB_CLEAR(so->so_rcv);
 613
 614                 /* Now null out the reference, we are completely detached. */
 615                 so->so_pcb = NULL;
 616                 SOCK_UNLOCK(so);
 617         } else {
 618                 flags = inp->sctp_flags;
 619                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 620                         goto sctp_must_try_again;
 621                 }
 622         }
 623         return;
 624 }
 625
 626
 627 int
 628 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 629     struct mbuf *control, struct thread *p);
 630
 631
 632 int
 633 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 634     struct mbuf *control, struct thread *p)
 635 {
 636         struct sctp_inpcb *inp;
 637         int error;
 638
 639         inp = (struct sctp_inpcb *)so->so_pcb;
 640         if (inp == NULL) {
 641                 if (control) {
 642                         sctp_m_freem(control);
 643                         control = NULL;
 644                 }
 645                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 646                 sctp_m_freem(m);
 647                 return (EINVAL);
 648         }
 649         /* Got to have an to address if we are NOT a connected socket */
 650         if ((addr == NULL) &&
 651             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 652             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 653                 goto connected_type;
 654         } else if (addr == NULL) {
 655                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 656                 error = EDESTADDRREQ;
 657                 sctp_m_freem(m);
 658                 if (control) {
 659                         sctp_m_freem(control);
 660                         control = NULL;
 661                 }
 662                 return (error);
 663         }
 664 #ifdef INET6
 665         if (addr->sa_family != AF_INET) {
 666                 /* must be a v4 address! */
 667                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 668                 sctp_m_freem(m);
 669                 if (control) {
 670                         sctp_m_freem(control);
 671                         control = NULL;
 672                 }
 673                 error = EDESTADDRREQ;
 674                 return (error);
 675         }
 676 #endif                          /* INET6 */
 677 connected_type:
 678         /* now what about control */
 679         if (control) {
 680                 if (inp->control) {
 681                         SCTP_PRINTF("huh? control set?\n");
 682                         sctp_m_freem(inp->control);
 683                         inp->control = NULL;
 684                 }
 685                 inp->control = control;
 686         }
 687         /* Place the data */
 688         if (inp->pkt) {
 689                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 690                 inp->pkt_last = m;
 691         } else {
 692                 inp->pkt_last = inp->pkt = m;
 693         }
 694         if (
 695         /* FreeBSD uses a flag passed */
 696             ((flags & PRUS_MORETOCOME) == 0)
 697             ) {
 698                 /*
 699                  * note with the current version this code will only be used
 700                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 701                  * re-defining sosend to use the sctp_sosend. One can
 702                  * optionally switch back to this code (by changing back the
 703                  * definitions) but this is not advisable. This code is used
 704                  * by FreeBSD when sending a file with sendfile() though.
 705                  */
 706                 int ret;
 707
 708                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 709                 inp->pkt = NULL;
 710                 inp->control = NULL;
 711                 return (ret);
 712         } else {
 713                 return (0);
 714         }
 715 }
 716
 717 int
 718 sctp_disconnect(struct socket *so)
 719 {
 720         struct sctp_inpcb *inp;
 721
 722         inp = (struct sctp_inpcb *)so->so_pcb;
 723         if (inp == NULL) {
 724                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 725                 return (ENOTCONN);
 726         }
 727         SCTP_INP_RLOCK(inp);
 728         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 729             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 730                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 731                         /* No connection */
 732                         SCTP_INP_RUNLOCK(inp);
 733                         return (0);
 734                 } else {
 735                         struct sctp_association *asoc;
 736                         struct sctp_tcb *stcb;
 737
 738                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 739                         if (stcb == NULL) {
 740                                 SCTP_INP_RUNLOCK(inp);
 741                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 742                                 return (EINVAL);
 743                         }
 744                         SCTP_TCB_LOCK(stcb);
 745                         asoc = &stcb->asoc;
 746                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 747                                 /* We are about to be freed, out of here */
 748                                 SCTP_TCB_UNLOCK(stcb);
 749                                 SCTP_INP_RUNLOCK(inp);
 750                                 return (0);
 751                         }
 752                         if (((so->so_options & SO_LINGER) &&
 753                             (so->so_linger == 0)) ||
 754                             (so->so_rcv.sb_cc > 0)) {
 755                                 if (SCTP_GET_STATE(asoc) !=
 756                                     SCTP_STATE_COOKIE_WAIT) {
 757                                         /* Left with Data unread */
 758                                         struct mbuf *err;
 759
 760                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 761                                         if (err) {
 762                                                 /*
 763                                                  * Fill in the user
 764                                                  * initiated abort
 765                                                  */
 766                                                 struct sctp_paramhdr *ph;
 767
 768                                                 ph = mtod(err, struct sctp_paramhdr *);
 769                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 770                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 771                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 772                                         }
 773                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 774                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 775                                 }
 776                                 SCTP_INP_RUNLOCK(inp);
 777                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 778                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 779                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 780                                 }
 781                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 782                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 783                                 /* No unlock tcb assoc is gone */
 784                                 return (0);
 785                         }
 786                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 787                             TAILQ_EMPTY(&asoc->sent_queue) &&
 788                             (asoc->stream_queue_cnt == 0)) {
 789                                 /* there is nothing queued to send, so done */
 790                                 if (asoc->locked_on_sending) {
 791                                         goto abort_anyway;
 792                                 }
 793                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 794                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 795                                         /* only send SHUTDOWN 1st time thru */
 796                                         struct sctp_nets *netp;
 797
 798                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 799                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 800                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 801                                         }
 802                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 803                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 804                                         sctp_stop_timers_for_shutdown(stcb);
 805                                         if (stcb->asoc.alternate) {
 806                                                 netp = stcb->asoc.alternate;
 807                                         } else {
 808                                                 netp = stcb->asoc.primary_destination;
 809                                         }
 810                                         sctp_send_shutdown(stcb, netp);
 811                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 812                                             stcb->sctp_ep, stcb, netp);
 813                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 814                                             stcb->sctp_ep, stcb, netp);
 815                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 816                                 }
 817                         } else {
 818                                 /*
 819                                  * we still got (or just got) data to send,
 820                                  * so set SHUTDOWN_PENDING
 821                                  */
 822                                 /*
 823                                  * XXX sockets draft says that SCTP_EOF
 824                                  * should be sent with no data. currently,
 825                                  * we will allow user data to be sent first
 826                                  * and move to SHUTDOWN-PENDING
 827                                  */
 828                                 struct sctp_nets *netp;
 829
 830                                 if (stcb->asoc.alternate) {
 831                                         netp = stcb->asoc.alternate;
 832                                 } else {
 833                                         netp = stcb->asoc.primary_destination;
 834                                 }
 835
 836                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 837                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 838                                     netp);
 839                                 if (asoc->locked_on_sending) {
 840                                         /* Locked to send out the data */
 841                                         struct sctp_stream_queue_pending *sp;
 842
 843                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 844                                         if (sp == NULL) {
 845                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 846                                                     asoc->locked_on_sending->stream_no);
 847                                         } else {
 848                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 849                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 850                                         }
 851                                 }
 852                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 853                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 854                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 855                                         struct mbuf *op_err;
 856
 857                         abort_anyway:
 858                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 859                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 860                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 861                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 862                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 863                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 864                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 865                                         }
 866                                         SCTP_INP_RUNLOCK(inp);
 867                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 868                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 869                                         return (0);
 870                                 } else {
 871                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 872                                 }
 873                         }
 874                         soisdisconnecting(so);
 875                         SCTP_TCB_UNLOCK(stcb);
 876                         SCTP_INP_RUNLOCK(inp);
 877                         return (0);
 878                 }
 879                 /* not reached */
 880         } else {
 881                 /* UDP model does not support this */
 882                 SCTP_INP_RUNLOCK(inp);
 883                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 884                 return (EOPNOTSUPP);
 885         }
 886 }
 887
 888 int
 889 sctp_flush(struct socket *so, int how)
 890 {
 891         /*
 892          * We will just clear out the values and let subsequent close clear
 893          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 894          * they will not be able to read the data, the socket will block
 895          * that from happening.
 896          */
 897         struct sctp_inpcb *inp;
 898
 899         inp = (struct sctp_inpcb *)so->so_pcb;
 900         if (inp == NULL) {
 901                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 902                 return (EINVAL);
 903         }
 904         SCTP_INP_RLOCK(inp);
 905         /* For the 1 to many model this does nothing */
 906         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 907                 SCTP_INP_RUNLOCK(inp);
 908                 return (0);
 909         }
 910         SCTP_INP_RUNLOCK(inp);
 911         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 912                 /*
 913                  * First make sure the sb will be happy, we don't use these
 914                  * except maybe the count
 915                  */
 916                 SCTP_INP_WLOCK(inp);
 917                 SCTP_INP_READ_LOCK(inp);
 918                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 919                 SCTP_INP_READ_UNLOCK(inp);
 920                 SCTP_INP_WUNLOCK(inp);
 921                 so->so_rcv.sb_cc = 0;
 922                 so->so_rcv.sb_mbcnt = 0;
 923                 so->so_rcv.sb_mb = NULL;
 924         }
 925         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 926                 /*
 927                  * First make sure the sb will be happy, we don't use these
 928                  * except maybe the count
 929                  */
 930                 so->so_snd.sb_cc = 0;
 931                 so->so_snd.sb_mbcnt = 0;
 932                 so->so_snd.sb_mb = NULL;
 933
 934         }
 935         return (0);
 936 }
 937
 938 int
 939 sctp_shutdown(struct socket *so)
 940 {
 941         struct sctp_inpcb *inp;
 942
 943         inp = (struct sctp_inpcb *)so->so_pcb;
 944         if (inp == NULL) {
 945                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 946                 return (EINVAL);
 947         }
 948         SCTP_INP_RLOCK(inp);
 949         /* For UDP model this is a invalid call */
 950         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 951             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 952                 /* Restore the flags that the soshutdown took away. */
 953                 SOCKBUF_LOCK(&so->so_rcv);
 954                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 955                 SOCKBUF_UNLOCK(&so->so_rcv);
 956                 /* This proc will wakeup for read and do nothing (I hope) */
 957                 SCTP_INP_RUNLOCK(inp);
 958                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 959                 return (EOPNOTSUPP);
 960         }
 961         /*
 962          * Ok if we reach here its the TCP model and it is either a SHUT_WR
 963          * or SHUT_RDWR. This means we put the shutdown flag against it.
 964          */
 965         {
 966                 struct sctp_tcb *stcb;
 967                 struct sctp_association *asoc;
 968
 969                 if ((so->so_state &
 970                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 971                         SCTP_INP_RUNLOCK(inp);
 972                         return (ENOTCONN);
 973                 }
 974                 socantsendmore(so);
 975
 976                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 977                 if (stcb == NULL) {
 978                         /*
 979                          * Ok we hit the case that the shutdown call was
 980                          * made after an abort or something. Nothing to do
 981                          * now.
 982                          */
 983                         SCTP_INP_RUNLOCK(inp);
 984                         return (0);
 985                 }
 986                 SCTP_TCB_LOCK(stcb);
 987                 asoc = &stcb->asoc;
 988                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 989                     TAILQ_EMPTY(&asoc->sent_queue) &&
 990                     (asoc->stream_queue_cnt == 0)) {
 991                         if (asoc->locked_on_sending) {
 992                                 goto abort_anyway;
 993                         }
 994                         /* there is nothing queued to send, so I'm done... */
 995                         if (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) {
 996                                 /* only send SHUTDOWN the first time through */
 997                                 struct sctp_nets *netp;
 998
 999                                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
1000                                     (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
1001                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
1002                                 }
1003                                 SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
1004                                 SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
1005                                 sctp_stop_timers_for_shutdown(stcb);
1006                                 if (stcb->asoc.alternate) {
1007                                         netp = stcb->asoc.alternate;
1008                                 } else {
1009                                         netp = stcb->asoc.primary_destination;
1010                                 }
1011                                 sctp_send_shutdown(stcb, netp);
1012                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
1013                                     stcb->sctp_ep, stcb, netp);
1014                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
1015                                     stcb->sctp_ep, stcb, netp);
1016                                 sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
1017                         }
1018                 } else {
1019                         /*
1020                          * we still got (or just got) data to send, so set
1021                          * SHUTDOWN_PENDING
1022                          */
1023                         struct sctp_nets *netp;
1024
1025                         if (stcb->asoc.alternate) {
1026                                 netp = stcb->asoc.alternate;
1027                         } else {
1028                                 netp = stcb->asoc.primary_destination;
1029                         }
1030
1031                         asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
1032                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
1033                             netp);
1034
1035                         if (asoc->locked_on_sending) {
1036                                 /* Locked to send out the data */
1037                                 struct sctp_stream_queue_pending *sp;
1038
1039                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1040                                 if (sp == NULL) {
1041                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1042                                             asoc->locked_on_sending->stream_no);
1043                                 } else {
1044                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1045                                                 asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
1046                                         }
1047                                 }
1048                         }
1049                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1050                             TAILQ_EMPTY(&asoc->sent_queue) &&
1051                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1052                                 struct mbuf *op_err;
1053
1054                 abort_anyway:
1055                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
1056                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1057                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1058                                     op_err, SCTP_SO_LOCKED);
1059                                 goto skip_unlock;
1060                         } else {
1061                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1062                         }
1063                 }
1064                 SCTP_TCB_UNLOCK(stcb);
1065         }
1066 skip_unlock:
1067         SCTP_INP_RUNLOCK(inp);
1068         return (0);
1069 }
1070
1071 /*
1072  * copies a "user" presentable address and removes embedded scope, etc.
1073  * returns 0 on success, 1 on error
1074  */
1075 static uint32_t
1076 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1077 {
1078 #ifdef INET6
1079         struct sockaddr_in6 lsa6;
1080
1081         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1082             &lsa6);
1083 #endif
1084         memcpy(ss, sa, sa->sa_len);
1085         return (0);
1086 }
1087
1088
1089
1090 /*
1091  * NOTE: assumes addr lock is held
1092  */
1093 static size_t
1094 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1095     struct sctp_tcb *stcb,
1096     size_t limit,
1097     struct sockaddr_storage *sas,
1098     uint32_t vrf_id)
1099 {
1100         struct sctp_ifn *sctp_ifn;
1101         struct sctp_ifa *sctp_ifa;
1102         size_t actual;
1103         int loopback_scope;
1104
1105 #if defined(INET)
1106         int ipv4_local_scope, ipv4_addr_legal;
1107
1108 #endif
1109 #if defined(INET6)
1110         int local_scope, site_scope, ipv6_addr_legal;
1111
1112 #endif
1113         struct sctp_vrf *vrf;
1114
1115         actual = 0;
1116         if (limit <= 0)
1117                 return (actual);
1118
1119         if (stcb) {
1120                 /* Turn on all the appropriate scope */
1121                 loopback_scope = stcb->asoc.scope.loopback_scope;
1122 #if defined(INET)
1123                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1124                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1125 #endif
1126 #if defined(INET6)
1127                 local_scope = stcb->asoc.scope.local_scope;
1128                 site_scope = stcb->asoc.scope.site_scope;
1129                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1130 #endif
1131         } else {
1132                 /* Use generic values for endpoints. */
1133                 loopback_scope = 1;
1134 #if defined(INET)
1135                 ipv4_local_scope = 1;
1136 #endif
1137 #if defined(INET6)
1138                 local_scope = 1;
1139                 site_scope = 1;
1140 #endif
1141                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1142 #if defined(INET6)
1143                         ipv6_addr_legal = 1;
1144 #endif
1145 #if defined(INET)
1146                         if (SCTP_IPV6_V6ONLY(inp)) {
1147                                 ipv4_addr_legal = 0;
1148                         } else {
1149                                 ipv4_addr_legal = 1;
1150                         }
1151 #endif
1152                 } else {
1153 #if defined(INET6)
1154                         ipv6_addr_legal = 0;
1155 #endif
1156 #if defined(INET)
1157                         ipv4_addr_legal = 1;
1158 #endif
1159                 }
1160         }
1161         vrf = sctp_find_vrf(vrf_id);
1162         if (vrf == NULL) {
1163                 return (0);
1164         }
1165         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1166                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1167                         if ((loopback_scope == 0) &&
1168                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1169                                 /* Skip loopback if loopback_scope not set */
1170                                 continue;
1171                         }
1172                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1173                                 if (stcb) {
1174                                         /*
1175                                          * For the BOUND-ALL case, the list
1176                                          * associated with a TCB is Always
1177                                          * considered a reverse list.. i.e.
1178                                          * it lists addresses that are NOT
1179                                          * part of the association. If this
1180                                          * is one of those we must skip it.
1181                                          */
1182                                         if (sctp_is_addr_restricted(stcb,
1183                                             sctp_ifa)) {
1184                                                 continue;
1185                                         }
1186                                 }
1187                                 switch (sctp_ifa->address.sa.sa_family) {
1188 #ifdef INET
1189                                 case AF_INET:
1190                                         if (ipv4_addr_legal) {
1191                                                 struct sockaddr_in *sin;
1192
1193                                                 sin = &sctp_ifa->address.sin;
1194                                                 if (sin->sin_addr.s_addr == 0) {
1195                                                         /*
1196                                                          * we skip
1197                                                          * unspecifed
1198                                                          * addresses
1199                                                          */
1200                                                         continue;
1201                                                 }
1202                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1203                                                     &sin->sin_addr) != 0) {
1204                                                         continue;
1205                                                 }
1206                                                 if ((ipv4_local_scope == 0) &&
1207                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1208                                                         continue;
1209                                                 }
1210 #ifdef INET6
1211                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1212                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1213                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1214                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1215                                                         actual += sizeof(struct sockaddr_in6);
1216                                                 } else {
1217 #endif
1218                                                         memcpy(sas, sin, sizeof(*sin));
1219                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1220                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1221                                                         actual += sizeof(*sin);
1222 #ifdef INET6
1223                                                 }
1224 #endif
1225                                                 if (actual >= limit) {
1226                                                         return (actual);
1227                                                 }
1228                                         } else {
1229                                                 continue;
1230                                         }
1231                                         break;
1232 #endif
1233 #ifdef INET6
1234                                 case AF_INET6:
1235                                         if (ipv6_addr_legal) {
1236                                                 struct sockaddr_in6 *sin6;
1237
1238                                                 sin6 = &sctp_ifa->address.sin6;
1239                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1240                                                         /*
1241                                                          * we skip
1242                                                          * unspecifed
1243                                                          * addresses
1244                                                          */
1245                                                         continue;
1246                                                 }
1247                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1248                                                     &sin6->sin6_addr) != 0) {
1249                                                         continue;
1250                                                 }
1251                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1252                                                         if (local_scope == 0)
1253                                                                 continue;
1254                                                         if (sin6->sin6_scope_id == 0) {
1255                                                                 if (sa6_recoverscope(sin6) != 0)
1256                                                                         /*
1257                                                                          *
1258                                                                          * bad
1259                                                                          *
1260                                                                          * li
1261                                                                          * nk
1262                                                                          *
1263                                                                          * loc
1264                                                                          * al
1265                                                                          *
1266                                                                          * add
1267                                                                          * re
1268                                                                          * ss
1269                                                                          * */
1270                                                                         continue;
1271                                                         }
1272                                                 }
1273                                                 if ((site_scope == 0) &&
1274                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1275                                                         continue;
1276                                                 }
1277                                                 memcpy(sas, sin6, sizeof(*sin6));
1278                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1279                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1280                                                 actual += sizeof(*sin6);
1281                                                 if (actual >= limit) {
1282                                                         return (actual);
1283                                                 }
1284                                         } else {
1285                                                 continue;
1286                                         }
1287                                         break;
1288 #endif
1289                                 default:
1290                                         /* TSNH */
1291                                         break;
1292                                 }
1293                         }
1294                 }
1295         } else {
1296                 struct sctp_laddr *laddr;
1297
1298                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1299                         if (stcb) {
1300                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1301                                         continue;
1302                                 }
1303                         }
1304                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1305                                 continue;
1306                         switch (laddr->ifa->address.sa.sa_family) {
1307 #ifdef INET
1308                         case AF_INET:
1309                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1310                                 break;
1311 #endif
1312 #ifdef INET6
1313                         case AF_INET6:
1314                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1315                                 break;
1316 #endif
1317                         default:
1318                                 /* TSNH */
1319                                 break;
1320                         }
1321                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1322                             laddr->ifa->address.sa.sa_len);
1323                         actual += laddr->ifa->address.sa.sa_len;
1324                         if (actual >= limit) {
1325                                 return (actual);
1326                         }
1327                 }
1328         }
1329         return (actual);
1330 }
1331
1332 static size_t
1333 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1334     struct sctp_tcb *stcb,
1335     size_t limit,
1336     struct sockaddr_storage *sas)
1337 {
1338         size_t size = 0;
1339
1340         SCTP_IPI_ADDR_RLOCK();
1341         /* fill up addresses for the endpoint's default vrf */
1342         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1343             inp->def_vrf_id);
1344         SCTP_IPI_ADDR_RUNLOCK();
1345         return (size);
1346 }
1347
1348 /*
1349  * NOTE: assumes addr lock is held
1350  */
1351 static int
1352 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1353 {
1354         int cnt = 0;
1355         struct sctp_vrf *vrf = NULL;
1356
1357         /*
1358          * In both sub-set bound an bound_all cases we return the MAXIMUM
1359          * number of addresses that you COULD get. In reality the sub-set
1360          * bound may have an exclusion list for a given TCB OR in the
1361          * bound-all case a TCB may NOT include the loopback or other
1362          * addresses as well.
1363          */
1364         vrf = sctp_find_vrf(vrf_id);
1365         if (vrf == NULL) {
1366                 return (0);
1367         }
1368         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1369                 struct sctp_ifn *sctp_ifn;
1370                 struct sctp_ifa *sctp_ifa;
1371
1372                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1373                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1374                                 /* Count them if they are the right type */
1375                                 switch (sctp_ifa->address.sa.sa_family) {
1376 #ifdef INET
1377                                 case AF_INET:
1378 #ifdef INET6
1379                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1380                                                 cnt += sizeof(struct sockaddr_in6);
1381                                         else
1382                                                 cnt += sizeof(struct sockaddr_in);
1383 #else
1384                                         cnt += sizeof(struct sockaddr_in);
1385 #endif
1386                                         break;
1387 #endif
1388 #ifdef INET6
1389                                 case AF_INET6:
1390                                         cnt += sizeof(struct sockaddr_in6);
1391                                         break;
1392 #endif
1393                                 default:
1394                                         break;
1395                                 }
1396                         }
1397                 }
1398         } else {
1399                 struct sctp_laddr *laddr;
1400
1401                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1402                         switch (laddr->ifa->address.sa.sa_family) {
1403 #ifdef INET
1404                         case AF_INET:
1405 #ifdef INET6
1406                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1407                                         cnt += sizeof(struct sockaddr_in6);
1408                                 else
1409                                         cnt += sizeof(struct sockaddr_in);
1410 #else
1411                                 cnt += sizeof(struct sockaddr_in);
1412 #endif
1413                                 break;
1414 #endif
1415 #ifdef INET6
1416                         case AF_INET6:
1417                                 cnt += sizeof(struct sockaddr_in6);
1418                                 break;
1419 #endif
1420                         default:
1421                                 break;
1422                         }
1423                 }
1424         }
1425         return (cnt);
1426 }
1427
1428 static int
1429 sctp_count_max_addresses(struct sctp_inpcb *inp)
1430 {
1431         int cnt = 0;
1432
1433         SCTP_IPI_ADDR_RLOCK();
1434         /* count addresses for the endpoint's default VRF */
1435         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1436         SCTP_IPI_ADDR_RUNLOCK();
1437         return (cnt);
1438 }
1439
1440 static int
1441 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1442     size_t optsize, void *p, int delay)
1443 {
1444         int error = 0;
1445         int creat_lock_on = 0;
1446         struct sctp_tcb *stcb = NULL;
1447         struct sockaddr *sa;
1448         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1449         uint32_t vrf_id;
1450         int bad_addresses = 0;
1451         sctp_assoc_t *a_id;
1452
1453         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1454
1455         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1456             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1457                 /* We are already connected AND the TCP model */
1458                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1459                 return (EADDRINUSE);
1460         }
1461         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1462             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1463                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1464                 return (EINVAL);
1465         }
1466         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1467                 SCTP_INP_RLOCK(inp);
1468                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1469                 SCTP_INP_RUNLOCK(inp);
1470         }
1471         if (stcb) {
1472                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1473                 return (EALREADY);
1474         }
1475         SCTP_INP_INCR_REF(inp);
1476         SCTP_ASOC_CREATE_LOCK(inp);
1477         creat_lock_on = 1;
1478         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1479             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1480                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1481                 error = EFAULT;
1482                 goto out_now;
1483         }
1484         totaddrp = (int *)optval;
1485         totaddr = *totaddrp;
1486         sa = (struct sockaddr *)(totaddrp + 1);
1487         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1488         if ((stcb != NULL) || bad_addresses) {
1489                 /* Already have or am bring up an association */
1490                 SCTP_ASOC_CREATE_UNLOCK(inp);
1491                 creat_lock_on = 0;
1492                 if (stcb)
1493                         SCTP_TCB_UNLOCK(stcb);
1494                 if (bad_addresses == 0) {
1495                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1496                         error = EALREADY;
1497                 }
1498                 goto out_now;
1499         }
1500 #ifdef INET6
1501         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1502             (num_v6 > 0)) {
1503                 error = EINVAL;
1504                 goto out_now;
1505         }
1506         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1507             (num_v4 > 0)) {
1508                 struct in6pcb *inp6;
1509
1510                 inp6 = (struct in6pcb *)inp;
1511                 if (SCTP_IPV6_V6ONLY(inp6)) {
1512                         /*
1513                          * if IPV6_V6ONLY flag, ignore connections destined
1514                          * to a v4 addr or v4-mapped addr
1515                          */
1516                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1517                         error = EINVAL;
1518                         goto out_now;
1519                 }
1520         }
1521 #endif                          /* INET6 */
1522         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1523             SCTP_PCB_FLAGS_UNBOUND) {
1524                 /* Bind a ephemeral port */
1525                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1526                 if (error) {
1527                         goto out_now;
1528                 }
1529         }
1530         /* FIX ME: do we want to pass in a vrf on the connect call? */
1531         vrf_id = inp->def_vrf_id;
1532
1533
1534         /* We are GOOD to go */
1535         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1536             (struct thread *)p
1537             );
1538         if (stcb == NULL) {
1539                 /* Gak! no memory */
1540                 goto out_now;
1541         }
1542         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1543                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1544                 /* Set the connected flag so we can queue data */
1545                 soisconnecting(so);
1546         }
1547         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1548         /* move to second address */
1549         switch (sa->sa_family) {
1550 #ifdef INET
1551         case AF_INET:
1552                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1553                 break;
1554 #endif
1555 #ifdef INET6
1556         case AF_INET6:
1557                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1558                 break;
1559 #endif
1560         default:
1561                 break;
1562         }
1563
1564         error = 0;
1565         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1566         /* Fill in the return id */
1567         if (error) {
1568                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1569                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1570                 goto out_now;
1571         }
1572         a_id = (sctp_assoc_t *) optval;
1573         *a_id = sctp_get_associd(stcb);
1574
1575         /* initialize authentication parameters for the assoc */
1576         sctp_initialize_auth_params(inp, stcb);
1577
1578         if (delay) {
1579                 /* doing delayed connection */
1580                 stcb->asoc.delayed_connection = 1;
1581                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1582         } else {
1583                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1584                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1585         }
1586         SCTP_TCB_UNLOCK(stcb);
1587         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1588                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1589                 /* Set the connected flag so we can queue data */
1590                 soisconnecting(so);
1591         }
1592 out_now:
1593         if (creat_lock_on) {
1594                 SCTP_ASOC_CREATE_UNLOCK(inp);
1595         }
1596         SCTP_INP_DECR_REF(inp);
1597         return (error);
1598 }
1599
1600 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1601         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1602             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1603                 SCTP_INP_RLOCK(inp); \
1604                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1605                 if (stcb) { \
1606                         SCTP_TCB_LOCK(stcb); \
1607                 } \
1608                 SCTP_INP_RUNLOCK(inp); \
1609         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1610                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1611                 if (stcb == NULL) { \
1612                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1613                         error = ENOENT; \
1614                         break; \
1615                 } \
1616         } else { \
1617                 stcb = NULL; \
1618         } \
1619   }
1620
1621
1622 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1623         if (size < sizeof(type)) { \
1624                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1625                 error = EINVAL; \
1626                 break; \
1627         } else { \
1628                 destp = (type *)srcp; \
1629         } \
1630       }
1631
1632 static int
1633 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1634     void *p)
1635 {
1636         struct sctp_inpcb *inp = NULL;
1637         int error, val = 0;
1638         struct sctp_tcb *stcb = NULL;
1639
1640         if (optval == NULL) {
1641                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1642                 return (EINVAL);
1643         }
1644         inp = (struct sctp_inpcb *)so->so_pcb;
1645         if (inp == NULL) {
1646                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1647                 return EINVAL;
1648         }
1649         error = 0;
1650
1651         switch (optname) {
1652         case SCTP_NODELAY:
1653         case SCTP_AUTOCLOSE:
1654         case SCTP_EXPLICIT_EOR:
1655         case SCTP_AUTO_ASCONF:
1656         case SCTP_DISABLE_FRAGMENTS:
1657         case SCTP_I_WANT_MAPPED_V4_ADDR:
1658         case SCTP_USE_EXT_RCVINFO:
1659                 SCTP_INP_RLOCK(inp);
1660                 switch (optname) {
1661                 case SCTP_DISABLE_FRAGMENTS:
1662                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1663                         break;
1664                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1665                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1666                         break;
1667                 case SCTP_AUTO_ASCONF:
1668                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1669                                 /* only valid for bound all sockets */
1670                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1671                         } else {
1672                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1673                                 error = EINVAL;
1674                                 goto flags_out;
1675                         }
1676                         break;
1677                 case SCTP_EXPLICIT_EOR:
1678                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1679                         break;
1680                 case SCTP_NODELAY:
1681                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1682                         break;
1683                 case SCTP_USE_EXT_RCVINFO:
1684                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1685                         break;
1686                 case SCTP_AUTOCLOSE:
1687                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1688                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1689                         else
1690                                 val = 0;
1691                         break;
1692
1693                 default:
1694                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1695                         error = ENOPROTOOPT;
1696                 }               /* end switch (sopt->sopt_name) */
1697                 if (*optsize < sizeof(val)) {
1698                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1699                         error = EINVAL;
1700                 }
1701 flags_out:
1702                 SCTP_INP_RUNLOCK(inp);
1703                 if (error == 0) {
1704                         /* return the option value */
1705                         *(int *)optval = val;
1706                         *optsize = sizeof(val);
1707                 }
1708                 break;
1709         case SCTP_GET_PACKET_LOG:
1710                 {
1711 #ifdef  SCTP_PACKET_LOGGING
1712                         uint8_t *target;
1713                         int ret;
1714
1715                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1716                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1717                         *optsize = ret;
1718 #else
1719                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1720                         error = EOPNOTSUPP;
1721 #endif
1722                         break;
1723                 }
1724         case SCTP_REUSE_PORT:
1725                 {
1726                         uint32_t *value;
1727
1728                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1729                                 /* Can't do this for a 1-m socket */
1730                                 error = EINVAL;
1731                                 break;
1732                         }
1733                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1734                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1735                         *optsize = sizeof(uint32_t);
1736                         break;
1737                 }
1738         case SCTP_PARTIAL_DELIVERY_POINT:
1739                 {
1740                         uint32_t *value;
1741
1742                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1743                         *value = inp->partial_delivery_point;
1744                         *optsize = sizeof(uint32_t);
1745                         break;
1746                 }
1747         case SCTP_FRAGMENT_INTERLEAVE:
1748                 {
1749                         uint32_t *value;
1750
1751                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1752                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1753                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1754                                         *value = SCTP_FRAG_LEVEL_2;
1755                                 } else {
1756                                         *value = SCTP_FRAG_LEVEL_1;
1757                                 }
1758                         } else {
1759                                 *value = SCTP_FRAG_LEVEL_0;
1760                         }
1761                         *optsize = sizeof(uint32_t);
1762                         break;
1763                 }
1764         case SCTP_CMT_ON_OFF:
1765                 {
1766                         struct sctp_assoc_value *av;
1767
1768                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1769                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1770                         if (stcb) {
1771                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1772                                 SCTP_TCB_UNLOCK(stcb);
1773                         } else {
1774                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1775                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1776                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1777                                         SCTP_INP_RLOCK(inp);
1778                                         av->assoc_value = inp->sctp_cmt_on_off;
1779                                         SCTP_INP_RUNLOCK(inp);
1780                                 } else {
1781                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1782                                         error = EINVAL;
1783                                 }
1784                         }
1785                         if (error == 0) {
1786                                 *optsize = sizeof(struct sctp_assoc_value);
1787                         }
1788                         break;
1789                 }
1790         case SCTP_PLUGGABLE_CC:
1791                 {
1792                         struct sctp_assoc_value *av;
1793
1794                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1795                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1796                         if (stcb) {
1797                                 av->assoc_value = stcb->asoc.congestion_control_module;
1798                                 SCTP_TCB_UNLOCK(stcb);
1799                         } else {
1800                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1801                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1802                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1803                                         SCTP_INP_RLOCK(inp);
1804                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1805                                         SCTP_INP_RUNLOCK(inp);
1806                                 } else {
1807                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1808                                         error = EINVAL;
1809                                 }
1810                         }
1811                         if (error == 0) {
1812                                 *optsize = sizeof(struct sctp_assoc_value);
1813                         }
1814                         break;
1815                 }
1816         case SCTP_CC_OPTION:
1817                 {
1818                         struct sctp_cc_option *cc_opt;
1819
1820                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1821                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1822                         if (stcb == NULL) {
1823                                 error = EINVAL;
1824                         } else {
1825                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1826                                         error = ENOTSUP;
1827                                 } else {
1828                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1829                                         *optsize = sizeof(struct sctp_cc_option);
1830                                 }
1831                                 SCTP_TCB_UNLOCK(stcb);
1832                         }
1833                         break;
1834                 }
1835         case SCTP_PLUGGABLE_SS:
1836                 {
1837                         struct sctp_assoc_value *av;
1838
1839                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1840                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1841                         if (stcb) {
1842                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1843                                 SCTP_TCB_UNLOCK(stcb);
1844                         } else {
1845                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1846                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1847                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1848                                         SCTP_INP_RLOCK(inp);
1849                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1850                                         SCTP_INP_RUNLOCK(inp);
1851                                 } else {
1852                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1853                                         error = EINVAL;
1854                                 }
1855                         }
1856                         if (error == 0) {
1857                                 *optsize = sizeof(struct sctp_assoc_value);
1858                         }
1859                         break;
1860                 }
1861         case SCTP_SS_VALUE:
1862                 {
1863                         struct sctp_stream_value *av;
1864
1865                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1866                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1867                         if (stcb) {
1868                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1869                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1870                                     &av->stream_value) < 0)) {
1871                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1872                                         error = EINVAL;
1873                                 } else {
1874                                         *optsize = sizeof(struct sctp_stream_value);
1875                                 }
1876                                 SCTP_TCB_UNLOCK(stcb);
1877                         } else {
1878                                 /*
1879                                  * Can't get stream value without
1880                                  * association
1881                                  */
1882                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1883                                 error = EINVAL;
1884                         }
1885                         break;
1886                 }
1887         case SCTP_GET_ADDR_LEN:
1888                 {
1889                         struct sctp_assoc_value *av;
1890
1891                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1892                         error = EINVAL;
1893 #ifdef INET
1894                         if (av->assoc_value == AF_INET) {
1895                                 av->assoc_value = sizeof(struct sockaddr_in);
1896                                 error = 0;
1897                         }
1898 #endif
1899 #ifdef INET6
1900                         if (av->assoc_value == AF_INET6) {
1901                                 av->assoc_value = sizeof(struct sockaddr_in6);
1902                                 error = 0;
1903                         }
1904 #endif
1905                         if (error) {
1906                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1907                         } else {
1908                                 *optsize = sizeof(struct sctp_assoc_value);
1909                         }
1910                         break;
1911                 }
1912         case SCTP_GET_ASSOC_NUMBER:
1913                 {
1914                         uint32_t *value, cnt;
1915
1916                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1917                         cnt = 0;
1918                         SCTP_INP_RLOCK(inp);
1919                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1920                                 cnt++;
1921                         }
1922                         SCTP_INP_RUNLOCK(inp);
1923                         *value = cnt;
1924                         *optsize = sizeof(uint32_t);
1925                         break;
1926                 }
1927         case SCTP_GET_ASSOC_ID_LIST:
1928                 {
1929                         struct sctp_assoc_ids *ids;
1930                         unsigned int at, limit;
1931
1932                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1933                         at = 0;
1934                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1935                         SCTP_INP_RLOCK(inp);
1936                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1937                                 if (at < limit) {
1938                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1939                                 } else {
1940                                         error = EINVAL;
1941                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1942                                         break;
1943                                 }
1944                         }
1945                         SCTP_INP_RUNLOCK(inp);
1946                         if (error == 0) {
1947                                 ids->gaids_number_of_ids = at;
1948                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1949                         }
1950                         break;
1951                 }
1952         case SCTP_CONTEXT:
1953                 {
1954                         struct sctp_assoc_value *av;
1955
1956                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1957                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1958
1959                         if (stcb) {
1960                                 av->assoc_value = stcb->asoc.context;
1961                                 SCTP_TCB_UNLOCK(stcb);
1962                         } else {
1963                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1964                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1965                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1966                                         SCTP_INP_RLOCK(inp);
1967                                         av->assoc_value = inp->sctp_context;
1968                                         SCTP_INP_RUNLOCK(inp);
1969                                 } else {
1970                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1971                                         error = EINVAL;
1972                                 }
1973                         }
1974                         if (error == 0) {
1975                                 *optsize = sizeof(struct sctp_assoc_value);
1976                         }
1977                         break;
1978                 }
1979         case SCTP_VRF_ID:
1980                 {
1981                         uint32_t *default_vrfid;
1982
1983                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1984                         *default_vrfid = inp->def_vrf_id;
1985                         *optsize = sizeof(uint32_t);
1986                         break;
1987                 }
1988         case SCTP_GET_ASOC_VRF:
1989                 {
1990                         struct sctp_assoc_value *id;
1991
1992                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1993                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1994                         if (stcb == NULL) {
1995                                 error = EINVAL;
1996                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1997                         } else {
1998                                 id->assoc_value = stcb->asoc.vrf_id;
1999                                 *optsize = sizeof(struct sctp_assoc_value);
2000                         }
2001                         break;
2002                 }
2003         case SCTP_GET_VRF_IDS:
2004                 {
2005                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
2006                         error = EOPNOTSUPP;
2007                         break;
2008                 }
2009         case SCTP_GET_NONCE_VALUES:
2010                 {
2011                         struct sctp_get_nonce_values *gnv;
2012
2013                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
2014                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
2015
2016                         if (stcb) {
2017                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2018                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2019                                 SCTP_TCB_UNLOCK(stcb);
2020                                 *optsize = sizeof(struct sctp_get_nonce_values);
2021                         } else {
2022                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2023                                 error = ENOTCONN;
2024                         }
2025                         break;
2026                 }
2027         case SCTP_DELAYED_SACK:
2028                 {
2029                         struct sctp_sack_info *sack;
2030
2031                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2032                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2033                         if (stcb) {
2034                                 sack->sack_delay = stcb->asoc.delayed_ack;
2035                                 sack->sack_freq = stcb->asoc.sack_freq;
2036                                 SCTP_TCB_UNLOCK(stcb);
2037                         } else {
2038                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2039                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2040                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2041                                         SCTP_INP_RLOCK(inp);
2042                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2043                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2044                                         SCTP_INP_RUNLOCK(inp);
2045                                 } else {
2046                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2047                                         error = EINVAL;
2048                                 }
2049                         }
2050                         if (error == 0) {
2051                                 *optsize = sizeof(struct sctp_sack_info);
2052                         }
2053                         break;
2054                 }
2055         case SCTP_GET_SNDBUF_USE:
2056                 {
2057                         struct sctp_sockstat *ss;
2058
2059                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2060                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2061
2062                         if (stcb) {
2063                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2064                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2065                                     stcb->asoc.size_on_all_streams);
2066                                 SCTP_TCB_UNLOCK(stcb);
2067                                 *optsize = sizeof(struct sctp_sockstat);
2068                         } else {
2069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2070                                 error = ENOTCONN;
2071                         }
2072                         break;
2073                 }
2074         case SCTP_MAX_BURST:
2075                 {
2076                         struct sctp_assoc_value *av;
2077
2078                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2079                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2080
2081                         if (stcb) {
2082                                 av->assoc_value = stcb->asoc.max_burst;
2083                                 SCTP_TCB_UNLOCK(stcb);
2084                         } else {
2085                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2086                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2087                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2088                                         SCTP_INP_RLOCK(inp);
2089                                         av->assoc_value = inp->sctp_ep.max_burst;
2090                                         SCTP_INP_RUNLOCK(inp);
2091                                 } else {
2092                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2093                                         error = EINVAL;
2094                                 }
2095                         }
2096                         if (error == 0) {
2097                                 *optsize = sizeof(struct sctp_assoc_value);
2098                         }
2099                         break;
2100                 }
2101         case SCTP_MAXSEG:
2102                 {
2103                         struct sctp_assoc_value *av;
2104                         int ovh;
2105
2106                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2107                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2108
2109                         if (stcb) {
2110                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2111                                 SCTP_TCB_UNLOCK(stcb);
2112                         } else {
2113                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2114                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2115                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2116                                         SCTP_INP_RLOCK(inp);
2117                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2118                                                 ovh = SCTP_MED_OVERHEAD;
2119                                         } else {
2120                                                 ovh = SCTP_MED_V4_OVERHEAD;
2121                                         }
2122                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2123                                                 av->assoc_value = 0;
2124                                         else
2125                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2126                                         SCTP_INP_RUNLOCK(inp);
2127                                 } else {
2128                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2129                                         error = EINVAL;
2130                                 }
2131                         }
2132                         if (error == 0) {
2133                                 *optsize = sizeof(struct sctp_assoc_value);
2134                         }
2135                         break;
2136                 }
2137         case SCTP_GET_STAT_LOG:
2138                 error = sctp_fill_stat_log(optval, optsize);
2139                 break;
2140         case SCTP_EVENTS:
2141                 {
2142                         struct sctp_event_subscribe *events;
2143
2144                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2145                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2146                         SCTP_INP_RLOCK(inp);
2147                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2148                                 events->sctp_data_io_event = 1;
2149
2150                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2151                                 events->sctp_association_event = 1;
2152
2153                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2154                                 events->sctp_address_event = 1;
2155
2156                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2157                                 events->sctp_send_failure_event = 1;
2158
2159                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2160                                 events->sctp_peer_error_event = 1;
2161
2162                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2163                                 events->sctp_shutdown_event = 1;
2164
2165                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2166                                 events->sctp_partial_delivery_event = 1;
2167
2168                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2169                                 events->sctp_adaptation_layer_event = 1;
2170
2171                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2172                                 events->sctp_authentication_event = 1;
2173
2174                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2175                                 events->sctp_sender_dry_event = 1;
2176
2177                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2178                                 events->sctp_stream_reset_event = 1;
2179                         SCTP_INP_RUNLOCK(inp);
2180                         *optsize = sizeof(struct sctp_event_subscribe);
2181                         break;
2182                 }
2183         case SCTP_ADAPTATION_LAYER:
2184                 {
2185                         uint32_t *value;
2186
2187                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2188
2189                         SCTP_INP_RLOCK(inp);
2190                         *value = inp->sctp_ep.adaptation_layer_indicator;
2191                         SCTP_INP_RUNLOCK(inp);
2192                         *optsize = sizeof(uint32_t);
2193                         break;
2194                 }
2195         case SCTP_SET_INITIAL_DBG_SEQ:
2196                 {
2197                         uint32_t *value;
2198
2199                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2200                         SCTP_INP_RLOCK(inp);
2201                         *value = inp->sctp_ep.initial_sequence_debug;
2202                         SCTP_INP_RUNLOCK(inp);
2203                         *optsize = sizeof(uint32_t);
2204                         break;
2205                 }
2206         case SCTP_GET_LOCAL_ADDR_SIZE:
2207                 {
2208                         uint32_t *value;
2209
2210                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2211                         SCTP_INP_RLOCK(inp);
2212                         *value = sctp_count_max_addresses(inp);
2213                         SCTP_INP_RUNLOCK(inp);
2214                         *optsize = sizeof(uint32_t);
2215                         break;
2216                 }
2217         case SCTP_GET_REMOTE_ADDR_SIZE:
2218                 {
2219                         uint32_t *value;
2220                         size_t size;
2221                         struct sctp_nets *net;
2222
2223                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2224                         /* FIXME MT: change to sctp_assoc_value? */
2225                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2226
2227                         if (stcb) {
2228                                 size = 0;
2229                                 /* Count the sizes */
2230                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2231                                         switch (net->ro._l_addr.sa.sa_family) {
2232 #ifdef INET
2233                                         case AF_INET:
2234 #ifdef INET6
2235                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2236                                                         size += sizeof(struct sockaddr_in6);
2237                                                 } else {
2238                                                         size += sizeof(struct sockaddr_in);
2239                                                 }
2240 #else
2241                                                 size += sizeof(struct sockaddr_in);
2242 #endif
2243                                                 break;
2244 #endif
2245 #ifdef INET6
2246                                         case AF_INET6:
2247                                                 size += sizeof(struct sockaddr_in6);
2248                                                 break;
2249 #endif
2250                                         default:
2251                                                 break;
2252                                         }
2253                                 }
2254                                 SCTP_TCB_UNLOCK(stcb);
2255                                 *value = (uint32_t) size;
2256                                 *optsize = sizeof(uint32_t);
2257                         } else {
2258                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2259                                 error = ENOTCONN;
2260                         }
2261                         break;
2262                 }
2263         case SCTP_GET_PEER_ADDRESSES:
2264                 /*
2265                  * Get the address information, an array is passed in to
2266                  * fill up we pack it.
2267                  */
2268                 {
2269                         size_t cpsz, left;
2270                         struct sockaddr_storage *sas;
2271                         struct sctp_nets *net;
2272                         struct sctp_getaddresses *saddr;
2273
2274                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2275                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2276
2277                         if (stcb) {
2278                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2279                                 *optsize = sizeof(struct sctp_getaddresses);
2280                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2281
2282                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2283                                         switch (net->ro._l_addr.sa.sa_family) {
2284 #ifdef INET
2285                                         case AF_INET:
2286 #ifdef INET6
2287                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2288                                                         cpsz = sizeof(struct sockaddr_in6);
2289                                                 } else {
2290                                                         cpsz = sizeof(struct sockaddr_in);
2291                                                 }
2292 #else
2293                                                 cpsz = sizeof(struct sockaddr_in);
2294 #endif
2295                                                 break;
2296 #endif
2297 #ifdef INET6
2298                                         case AF_INET6:
2299                                                 cpsz = sizeof(struct sockaddr_in6);
2300                                                 break;
2301 #endif
2302                                         default:
2303                                                 cpsz = 0;
2304                                                 break;
2305                                         }
2306                                         if (cpsz == 0) {
2307                                                 break;
2308                                         }
2309                                         if (left < cpsz) {
2310                                                 /* not enough room. */
2311                                                 break;
2312                                         }
2313 #if defined(INET) && defined(INET6)
2314                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2315                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2316                                                 /* Must map the address */
2317                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2318                                                     (struct sockaddr_in6 *)sas);
2319                                         } else {
2320                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2321                                         }
2322 #else
2323                                         memcpy(sas, &net->ro._l_addr, cpsz);
2324 #endif
2325                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2326
2327                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2328                                         left -= cpsz;
2329                                         *optsize += cpsz;
2330                                 }
2331                                 SCTP_TCB_UNLOCK(stcb);
2332                         } else {
2333                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2334                                 error = ENOENT;
2335                         }
2336                         break;
2337                 }
2338         case SCTP_GET_LOCAL_ADDRESSES:
2339                 {
2340                         size_t limit, actual;
2341                         struct sockaddr_storage *sas;
2342                         struct sctp_getaddresses *saddr;
2343
2344                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2345                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2346
2347                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2348                         limit = *optsize - sizeof(sctp_assoc_t);
2349                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2350                         if (stcb) {
2351                                 SCTP_TCB_UNLOCK(stcb);
2352                         }
2353                         *optsize = sizeof(struct sockaddr_storage) + actual;
2354                         break;
2355                 }
2356         case SCTP_PEER_ADDR_PARAMS:
2357                 {
2358                         struct sctp_paddrparams *paddrp;
2359                         struct sctp_nets *net;
2360                         struct sockaddr *addr;
2361
2362 #if defined(INET) && defined(INET6)
2363                         struct sockaddr_in sin_store;
2364
2365 #endif
2366
2367                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2368                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2369
2370 #if defined(INET) && defined(INET6)
2371                         if (paddrp->spp_address.ss_family == AF_INET6) {
2372                                 struct sockaddr_in6 *sin6;
2373
2374                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2375                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2376                                         in6_sin6_2_sin(&sin_store, sin6);
2377                                         addr = (struct sockaddr *)&sin_store;
2378                                 } else {
2379                                         addr = (struct sockaddr *)&paddrp->spp_address;
2380                                 }
2381                         } else {
2382                                 addr = (struct sockaddr *)&paddrp->spp_address;
2383                         }
2384 #else
2385                         addr = (struct sockaddr *)&paddrp->spp_address;
2386 #endif
2387                         if (stcb != NULL) {
2388                                 net = sctp_findnet(stcb, addr);
2389                         } else {
2390                                 /*
2391                                  * We increment here since
2392                                  * sctp_findassociation_ep_addr() wil do a
2393                                  * decrement if it finds the stcb as long as
2394                                  * the locked tcb (last argument) is NOT a
2395                                  * TCB.. aka NULL.
2396                                  */
2397                                 net = NULL;
2398                                 SCTP_INP_INCR_REF(inp);
2399                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2400                                 if (stcb == NULL) {
2401                                         SCTP_INP_DECR_REF(inp);
2402                                 }
2403                         }
2404                         if ((stcb != NULL) && (net == NULL)) {
2405 #ifdef INET
2406                                 if (addr->sa_family == AF_INET) {
2407                                         struct sockaddr_in *sin;
2408
2409                                         sin = (struct sockaddr_in *)addr;
2410                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2411                                                 error = EINVAL;
2412                                                 SCTP_TCB_UNLOCK(stcb);
2413                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2414                                                 break;
2415                                         }
2416                                 } else
2417 #endif
2418 #ifdef INET6
2419                                 if (addr->sa_family == AF_INET6) {
2420                                         struct sockaddr_in6 *sin6;
2421
2422                                         sin6 = (struct sockaddr_in6 *)addr;
2423                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2424                                                 error = EINVAL;
2425                                                 SCTP_TCB_UNLOCK(stcb);
2426                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2427                                                 break;
2428                                         }
2429                                 } else
2430 #endif
2431                                 {
2432                                         error = EAFNOSUPPORT;
2433                                         SCTP_TCB_UNLOCK(stcb);
2434                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2435                                         break;
2436                                 }
2437                         }
2438                         if (stcb != NULL) {
2439                                 /* Applies to the specific association */
2440                                 paddrp->spp_flags = 0;
2441                                 if (net != NULL) {
2442                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2443                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2444                                         paddrp->spp_pathmtu = net->mtu;
2445                                         switch (net->ro._l_addr.sa.sa_family) {
2446 #ifdef INET
2447                                         case AF_INET:
2448                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2449                                                 break;
2450 #endif
2451 #ifdef INET6
2452                                         case AF_INET6:
2453                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2454                                                 break;
2455 #endif
2456                                         default:
2457                                                 break;
2458                                         }
2459                                         /* get flags for HB */
2460                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2461                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2462                                         } else {
2463                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2464                                         }
2465                                         /* get flags for PMTU */
2466                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2467                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2468                                         } else {
2469                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2470                                         }
2471                                         if (net->dscp & 0x01) {
2472                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2473                                                 paddrp->spp_flags |= SPP_DSCP;
2474                                         }
2475 #ifdef INET6
2476                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2477                                             (net->flowlabel & 0x80000000)) {
2478                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2479                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2480                                         }
2481 #endif
2482                                 } else {
2483                                         /*
2484                                          * No destination so return default
2485                                          * value
2486                                          */
2487                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2488                                         paddrp->spp_pathmtu = 0;
2489                                         if (stcb->asoc.default_dscp & 0x01) {
2490                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2491                                                 paddrp->spp_flags |= SPP_DSCP;
2492                                         }
2493 #ifdef INET6
2494                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2495                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2496                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2497                                         }
2498 #endif
2499                                         /* default settings should be these */
2500                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2501                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2502                                         } else {
2503                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2504                                         }
2505                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2506                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2507                                         } else {
2508                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2509                                         }
2510                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2511                                 }
2512                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2513                                 SCTP_TCB_UNLOCK(stcb);
2514                         } else {
2515                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2516                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2517                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2518                                         /* Use endpoint defaults */
2519                                         SCTP_INP_RLOCK(inp);
2520                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2521                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2522                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2523                                         /* get inp's default */
2524                                         if (inp->sctp_ep.default_dscp & 0x01) {
2525                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2526                                                 paddrp->spp_flags |= SPP_DSCP;
2527                                         }
2528 #ifdef INET6
2529                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2530                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2531                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2532                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2533                                         }
2534 #endif
2535                                         /* can't return this */
2536                                         paddrp->spp_pathmtu = 0;
2537
2538                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2539                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2540                                         } else {
2541                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2542                                         }
2543                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2544                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2545                                         } else {
2546                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2547                                         }
2548                                         SCTP_INP_RUNLOCK(inp);
2549                                 } else {
2550                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2551                                         error = EINVAL;
2552                                 }
2553                         }
2554                         if (error == 0) {
2555                                 *optsize = sizeof(struct sctp_paddrparams);
2556                         }
2557                         break;
2558                 }
2559         case SCTP_GET_PEER_ADDR_INFO:
2560                 {
2561                         struct sctp_paddrinfo *paddri;
2562                         struct sctp_nets *net;
2563                         struct sockaddr *addr;
2564
2565 #if defined(INET) && defined(INET6)
2566                         struct sockaddr_in sin_store;
2567
2568 #endif
2569
2570                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2571                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2572
2573 #if defined(INET) && defined(INET6)
2574                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2575                                 struct sockaddr_in6 *sin6;
2576
2577                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2578                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2579                                         in6_sin6_2_sin(&sin_store, sin6);
2580                                         addr = (struct sockaddr *)&sin_store;
2581                                 } else {
2582                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2583                                 }
2584                         } else {
2585                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2586                         }
2587 #else
2588                         addr = (struct sockaddr *)&paddri->spinfo_address;
2589 #endif
2590                         if (stcb != NULL) {
2591                                 net = sctp_findnet(stcb, addr);
2592                         } else {
2593                                 /*
2594                                  * We increment here since
2595                                  * sctp_findassociation_ep_addr() wil do a
2596                                  * decrement if it finds the stcb as long as
2597                                  * the locked tcb (last argument) is NOT a
2598                                  * TCB.. aka NULL.
2599                                  */
2600                                 net = NULL;
2601                                 SCTP_INP_INCR_REF(inp);
2602                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2603                                 if (stcb == NULL) {
2604                                         SCTP_INP_DECR_REF(inp);
2605                                 }
2606                         }
2607
2608                         if ((stcb != NULL) && (net != NULL)) {
2609                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2610                                         /* It's unconfirmed */
2611                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2612                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2613                                         /* It's active */
2614                                         paddri->spinfo_state = SCTP_ACTIVE;
2615                                 } else {
2616                                         /* It's inactive */
2617                                         paddri->spinfo_state = SCTP_INACTIVE;
2618                                 }
2619                                 paddri->spinfo_cwnd = net->cwnd;
2620                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2621                                 paddri->spinfo_rto = net->RTO;
2622                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2623                                 paddri->spinfo_mtu = net->mtu;
2624                                 switch (addr->sa_family) {
2625 #if defined(INET)
2626                                 case AF_INET:
2627                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2628                                         break;
2629 #endif
2630 #if defined(INET6)
2631                                 case AF_INET6:
2632                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2633                                         break;
2634 #endif
2635                                 default:
2636                                         break;
2637                                 }
2638                                 SCTP_TCB_UNLOCK(stcb);
2639                                 *optsize = sizeof(struct sctp_paddrinfo);
2640                         } else {
2641                                 if (stcb != NULL) {
2642                                         SCTP_TCB_UNLOCK(stcb);
2643                                 }
2644                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2645                                 error = ENOENT;
2646                         }
2647                         break;
2648                 }
2649         case SCTP_PCB_STATUS:
2650                 {
2651                         struct sctp_pcbinfo *spcb;
2652
2653                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2654                         sctp_fill_pcbinfo(spcb);
2655                         *optsize = sizeof(struct sctp_pcbinfo);
2656                         break;
2657                 }
2658         case SCTP_STATUS:
2659                 {
2660                         struct sctp_nets *net;
2661                         struct sctp_status *sstat;
2662
2663                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2664                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2665
2666                         if (stcb == NULL) {
2667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2668                                 error = EINVAL;
2669                                 break;
2670                         }
2671                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2672                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2673                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2674                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2675                         /*
2676                          * We can't include chunks that have been passed to
2677                          * the socket layer. Only things in queue.
2678                          */
2679                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2680                             stcb->asoc.cnt_on_all_streams);
2681
2682
2683                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2684                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2685                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2686                         memcpy(&sstat->sstat_primary.spinfo_address,
2687                             &stcb->asoc.primary_destination->ro._l_addr,
2688                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2689                         net = stcb->asoc.primary_destination;
2690                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2691                         /*
2692                          * Again the user can get info from sctp_constants.h
2693                          * for what the state of the network is.
2694                          */
2695                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2696                                 /* It's unconfirmed */
2697                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2698                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2699                                 /* It's active */
2700                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2701                         } else {
2702                                 /* It's inactive */
2703                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2704                         }
2705                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2706                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2707                         sstat->sstat_primary.spinfo_rto = net->RTO;
2708                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2709                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2710 #if defined(INET)
2711                         case AF_INET:
2712                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2713                                 break;
2714 #endif
2715 #if defined(INET6)
2716                         case AF_INET6:
2717                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2718                                 break;
2719 #endif
2720                         default:
2721                                 break;
2722                         }
2723                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2724                         SCTP_TCB_UNLOCK(stcb);
2725                         *optsize = sizeof(struct sctp_status);
2726                         break;
2727                 }
2728         case SCTP_RTOINFO:
2729                 {
2730                         struct sctp_rtoinfo *srto;
2731
2732                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2733                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2734
2735                         if (stcb) {
2736                                 srto->srto_initial = stcb->asoc.initial_rto;
2737                                 srto->srto_max = stcb->asoc.maxrto;
2738                                 srto->srto_min = stcb->asoc.minrto;
2739                                 SCTP_TCB_UNLOCK(stcb);
2740                         } else {
2741                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2742                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2743                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2744                                         SCTP_INP_RLOCK(inp);
2745                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2746                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2747                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2748                                         SCTP_INP_RUNLOCK(inp);
2749                                 } else {
2750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2751                                         error = EINVAL;
2752                                 }
2753                         }
2754                         if (error == 0) {
2755                                 *optsize = sizeof(struct sctp_rtoinfo);
2756                         }
2757                         break;
2758                 }
2759         case SCTP_TIMEOUTS:
2760                 {
2761                         struct sctp_timeouts *stimo;
2762
2763                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2764                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2765
2766                         if (stcb) {
2767                                 stimo->stimo_init = stcb->asoc.timoinit;
2768                                 stimo->stimo_data = stcb->asoc.timodata;
2769                                 stimo->stimo_sack = stcb->asoc.timosack;
2770                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2771                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2772                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2773                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2774                                 SCTP_TCB_UNLOCK(stcb);
2775                                 *optsize = sizeof(struct sctp_timeouts);
2776                         } else {
2777                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2778                                 error = EINVAL;
2779                         }
2780                         break;
2781                 }
2782         case SCTP_ASSOCINFO:
2783                 {
2784                         struct sctp_assocparams *sasoc;
2785
2786                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2787                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2788
2789                         if (stcb) {
2790                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2791                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2792                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2793                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2794                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2795                                 SCTP_TCB_UNLOCK(stcb);
2796                         } else {
2797                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2798                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2799                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2800                                         SCTP_INP_RLOCK(inp);
2801                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2802                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2803                                         sasoc->sasoc_number_peer_destinations = 0;
2804                                         sasoc->sasoc_peer_rwnd = 0;
2805                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2806                                         SCTP_INP_RUNLOCK(inp);
2807                                 } else {
2808                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2809                                         error = EINVAL;
2810                                 }
2811                         }
2812                         if (error == 0) {
2813                                 *optsize = sizeof(struct sctp_assocparams);
2814                         }
2815                         break;
2816                 }
2817         case SCTP_DEFAULT_SEND_PARAM:
2818                 {
2819                         struct sctp_sndrcvinfo *s_info;
2820
2821                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2822                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2823
2824                         if (stcb) {
2825                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2826                                 SCTP_TCB_UNLOCK(stcb);
2827                         } else {
2828                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2829                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2830                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2831                                         SCTP_INP_RLOCK(inp);
2832                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2833                                         SCTP_INP_RUNLOCK(inp);
2834                                 } else {
2835                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2836                                         error = EINVAL;
2837                                 }
2838                         }
2839                         if (error == 0) {
2840                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2841                         }
2842                         break;
2843                 }
2844         case SCTP_INITMSG:
2845                 {
2846                         struct sctp_initmsg *sinit;
2847
2848                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2849                         SCTP_INP_RLOCK(inp);
2850                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2851                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2852                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2853                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2854                         SCTP_INP_RUNLOCK(inp);
2855                         *optsize = sizeof(struct sctp_initmsg);
2856                         break;
2857                 }
2858         case SCTP_PRIMARY_ADDR:
2859                 /* we allow a "get" operation on this */
2860                 {
2861                         struct sctp_setprim *ssp;
2862
2863                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2864                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2865
2866                         if (stcb) {
2867                                 union sctp_sockstore *addr;
2868
2869                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2870                                 switch (addr->sa.sa_family) {
2871 #ifdef INET
2872                                 case AF_INET:
2873 #ifdef INET6
2874                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2875                                                 in6_sin_2_v4mapsin6(&addr->sin,
2876                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2877                                         } else {
2878                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2879                                         }
2880 #else
2881                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2882 #endif
2883                                         break;
2884 #endif
2885 #ifdef INET6
2886                                 case AF_INET6:
2887                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2888                                         break;
2889 #endif
2890                                 default:
2891                                         break;
2892                                 }
2893                                 SCTP_TCB_UNLOCK(stcb);
2894                                 *optsize = sizeof(struct sctp_setprim);
2895                         } else {
2896                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2897                                 error = EINVAL;
2898                         }
2899                         break;
2900                 }
2901         case SCTP_HMAC_IDENT:
2902                 {
2903                         struct sctp_hmacalgo *shmac;
2904                         sctp_hmaclist_t *hmaclist;
2905                         uint32_t size;
2906                         int i;
2907
2908                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2909
2910                         SCTP_INP_RLOCK(inp);
2911                         hmaclist = inp->sctp_ep.local_hmacs;
2912                         if (hmaclist == NULL) {
2913                                 /* no HMACs to return */
2914                                 *optsize = sizeof(*shmac);
2915                                 SCTP_INP_RUNLOCK(inp);
2916                                 break;
2917                         }
2918                         /* is there room for all of the hmac ids? */
2919                         size = sizeof(*shmac) + (hmaclist->num_algo *
2920                             sizeof(shmac->shmac_idents[0]));
2921                         if ((size_t)(*optsize) < size) {
2922                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2923                                 error = EINVAL;
2924                                 SCTP_INP_RUNLOCK(inp);
2925                                 break;
2926                         }
2927                         /* copy in the list */
2928                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2929                         for (i = 0; i < hmaclist->num_algo; i++) {
2930                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2931                         }
2932                         SCTP_INP_RUNLOCK(inp);
2933                         *optsize = size;
2934                         break;
2935                 }
2936         case SCTP_AUTH_ACTIVE_KEY:
2937                 {
2938                         struct sctp_authkeyid *scact;
2939
2940                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2941                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2942
2943                         if (stcb) {
2944                                 /* get the active key on the assoc */
2945                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2946                                 SCTP_TCB_UNLOCK(stcb);
2947                         } else {
2948                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2949                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2950                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2951                                         /* get the endpoint active key */
2952                                         SCTP_INP_RLOCK(inp);
2953                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2954                                         SCTP_INP_RUNLOCK(inp);
2955                                 } else {
2956                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2957                                         error = EINVAL;
2958                                 }
2959                         }
2960                         if (error == 0) {
2961                                 *optsize = sizeof(struct sctp_authkeyid);
2962                         }
2963                         break;
2964                 }
2965         case SCTP_LOCAL_AUTH_CHUNKS:
2966                 {
2967                         struct sctp_authchunks *sac;
2968                         sctp_auth_chklist_t *chklist = NULL;
2969                         size_t size = 0;
2970
2971                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2972                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2973
2974                         if (stcb) {
2975                                 /* get off the assoc */
2976                                 chklist = stcb->asoc.local_auth_chunks;
2977                                 /* is there enough space? */
2978                                 size = sctp_auth_get_chklist_size(chklist);
2979                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2980                                         error = EINVAL;
2981                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2982                                 } else {
2983                                         /* copy in the chunks */
2984                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2985                                         sac->gauth_number_of_chunks = (uint32_t) size;
2986                                         *optsize = sizeof(struct sctp_authchunks) + size;
2987                                 }
2988                                 SCTP_TCB_UNLOCK(stcb);
2989                         } else {
2990                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2991                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2992                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2993                                         /* get off the endpoint */
2994                                         SCTP_INP_RLOCK(inp);
2995                                         chklist = inp->sctp_ep.local_auth_chunks;
2996                                         /* is there enough space? */
2997                                         size = sctp_auth_get_chklist_size(chklist);
2998                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2999                                                 error = EINVAL;
3000                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3001                                         } else {
3002                                                 /* copy in the chunks */
3003                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3004                                                 sac->gauth_number_of_chunks = (uint32_t) size;
3005                                                 *optsize = sizeof(struct sctp_authchunks) + size;
3006                                         }
3007                                         SCTP_INP_RUNLOCK(inp);
3008                                 } else {
3009                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3010                                         error = EINVAL;
3011                                 }
3012                         }
3013                         break;
3014                 }
3015         case SCTP_PEER_AUTH_CHUNKS:
3016                 {
3017                         struct sctp_authchunks *sac;
3018                         sctp_auth_chklist_t *chklist = NULL;
3019                         size_t size = 0;
3020
3021                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
3022                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
3023
3024                         if (stcb) {
3025                                 /* get off the assoc */
3026                                 chklist = stcb->asoc.peer_auth_chunks;
3027                                 /* is there enough space? */
3028                                 size = sctp_auth_get_chklist_size(chklist);
3029                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3030                                         error = EINVAL;
3031                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3032                                 } else {
3033                                         /* copy in the chunks */
3034                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3035                                         sac->gauth_number_of_chunks = (uint32_t) size;
3036                                         *optsize = sizeof(struct sctp_authchunks) + size;
3037                                 }
3038                                 SCTP_TCB_UNLOCK(stcb);
3039                         } else {
3040                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3041                                 error = ENOENT;
3042                         }
3043                         break;
3044                 }
3045         case SCTP_EVENT:
3046                 {
3047                         struct sctp_event *event;
3048                         uint32_t event_type;
3049
3050                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3051                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3052
3053                         switch (event->se_type) {
3054                         case SCTP_ASSOC_CHANGE:
3055                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3056                                 break;
3057                         case SCTP_PEER_ADDR_CHANGE:
3058                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3059                                 break;
3060                         case SCTP_REMOTE_ERROR:
3061                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3062                                 break;
3063                         case SCTP_SEND_FAILED:
3064                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3065                                 break;
3066                         case SCTP_SHUTDOWN_EVENT:
3067                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3068                                 break;
3069                         case SCTP_ADAPTATION_INDICATION:
3070                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3071                                 break;
3072                         case SCTP_PARTIAL_DELIVERY_EVENT:
3073                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3074                                 break;
3075                         case SCTP_AUTHENTICATION_EVENT:
3076                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3077                                 break;
3078                         case SCTP_STREAM_RESET_EVENT:
3079                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3080                                 break;
3081                         case SCTP_SENDER_DRY_EVENT:
3082                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3083                                 break;
3084                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3085                                 event_type = 0;
3086                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3087                                 error = ENOTSUP;
3088                                 break;
3089                         case SCTP_ASSOC_RESET_EVENT:
3090                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3091                                 break;
3092                         case SCTP_STREAM_CHANGE_EVENT:
3093                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3094                                 break;
3095                         case SCTP_SEND_FAILED_EVENT:
3096                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3097                                 break;
3098                         default:
3099                                 event_type = 0;
3100                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3101                                 error = EINVAL;
3102                                 break;
3103                         }
3104                         if (event_type > 0) {
3105                                 if (stcb) {
3106                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3107                                         SCTP_TCB_UNLOCK(stcb);
3108                                 } else {
3109                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3110                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3111                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3112                                                 SCTP_INP_RLOCK(inp);
3113                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3114                                                 SCTP_INP_RUNLOCK(inp);
3115                                         } else {
3116                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3117                                                 error = EINVAL;
3118                                         }
3119                                 }
3120                         }
3121                         if (error == 0) {
3122                                 *optsize = sizeof(struct sctp_event);
3123                         }
3124                         break;
3125                 }
3126         case SCTP_RECVRCVINFO:
3127                 {
3128                         int onoff;
3129
3130                         if (*optsize < sizeof(int)) {
3131                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3132                                 error = EINVAL;
3133                         } else {
3134                                 SCTP_INP_RLOCK(inp);
3135                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3136                                 SCTP_INP_RUNLOCK(inp);
3137                         }
3138                         if (error == 0) {
3139                                 /* return the option value */
3140                                 *(int *)optval = onoff;
3141                                 *optsize = sizeof(int);
3142                         }
3143                         break;
3144                 }
3145         case SCTP_RECVNXTINFO:
3146                 {
3147                         int onoff;
3148
3149                         if (*optsize < sizeof(int)) {
3150                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3151                                 error = EINVAL;
3152                         } else {
3153                                 SCTP_INP_RLOCK(inp);
3154                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3155                                 SCTP_INP_RUNLOCK(inp);
3156                         }
3157                         if (error == 0) {
3158                                 /* return the option value */
3159                                 *(int *)optval = onoff;
3160                                 *optsize = sizeof(int);
3161                         }
3162                         break;
3163                 }
3164         case SCTP_DEFAULT_SNDINFO:
3165                 {
3166                         struct sctp_sndinfo *info;
3167
3168                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3169                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3170
3171                         if (stcb) {
3172                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3173                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3174                                 info->snd_flags &= 0xfff0;
3175                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3176                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3177                                 SCTP_TCB_UNLOCK(stcb);
3178                         } else {
3179                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3180                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3181                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3182                                         SCTP_INP_RLOCK(inp);
3183                                         info->snd_sid = inp->def_send.sinfo_stream;
3184                                         info->snd_flags = inp->def_send.sinfo_flags;
3185                                         info->snd_flags &= 0xfff0;
3186                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3187                                         info->snd_context = inp->def_send.sinfo_context;
3188                                         SCTP_INP_RUNLOCK(inp);
3189                                 } else {
3190                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3191                                         error = EINVAL;
3192                                 }
3193                         }
3194                         if (error == 0) {
3195                                 *optsize = sizeof(struct sctp_sndinfo);
3196                         }
3197                         break;
3198                 }
3199         case SCTP_DEFAULT_PRINFO:
3200                 {
3201                         struct sctp_default_prinfo *info;
3202
3203                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3204                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3205
3206                         if (stcb) {
3207                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3208                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3209                                 SCTP_TCB_UNLOCK(stcb);
3210                         } else {
3211                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3212                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3213                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3214                                         SCTP_INP_RLOCK(inp);
3215                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3216                                         info->pr_value = inp->def_send.sinfo_timetolive;
3217                                         SCTP_INP_RUNLOCK(inp);
3218                                 } else {
3219                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3220                                         error = EINVAL;
3221                                 }
3222                         }
3223                         if (error == 0) {
3224                                 *optsize = sizeof(struct sctp_default_prinfo);
3225                         }
3226                         break;
3227                 }
3228         case SCTP_PEER_ADDR_THLDS:
3229                 {
3230                         struct sctp_paddrthlds *thlds;
3231                         struct sctp_nets *net;
3232                         struct sockaddr *addr;
3233
3234 #if defined(INET) && defined(INET6)
3235                         struct sockaddr_in sin_store;
3236
3237 #endif
3238
3239                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3240                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3241
3242 #if defined(INET) && defined(INET6)
3243                         if (thlds->spt_address.ss_family == AF_INET6) {
3244                                 struct sockaddr_in6 *sin6;
3245
3246                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3247                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3248                                         in6_sin6_2_sin(&sin_store, sin6);
3249                                         addr = (struct sockaddr *)&sin_store;
3250                                 } else {
3251                                         addr = (struct sockaddr *)&thlds->spt_address;
3252                                 }
3253                         } else {
3254                                 addr = (struct sockaddr *)&thlds->spt_address;
3255                         }
3256 #else
3257                         addr = (struct sockaddr *)&thlds->spt_address;
3258 #endif
3259                         if (stcb != NULL) {
3260                                 net = sctp_findnet(stcb, addr);
3261                         } else {
3262                                 /*
3263                                  * We increment here since
3264                                  * sctp_findassociation_ep_addr() wil do a
3265                                  * decrement if it finds the stcb as long as
3266                                  * the locked tcb (last argument) is NOT a
3267                                  * TCB.. aka NULL.
3268                                  */
3269                                 net = NULL;
3270                                 SCTP_INP_INCR_REF(inp);
3271                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3272                                 if (stcb == NULL) {
3273                                         SCTP_INP_DECR_REF(inp);
3274                                 }
3275                         }
3276                         if ((stcb != NULL) && (net == NULL)) {
3277 #ifdef INET
3278                                 if (addr->sa_family == AF_INET) {
3279                                         struct sockaddr_in *sin;
3280
3281                                         sin = (struct sockaddr_in *)addr;
3282                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3283                                                 error = EINVAL;
3284                                                 SCTP_TCB_UNLOCK(stcb);
3285                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3286                                                 break;
3287                                         }
3288                                 } else
3289 #endif
3290 #ifdef INET6
3291                                 if (addr->sa_family == AF_INET6) {
3292                                         struct sockaddr_in6 *sin6;
3293
3294                                         sin6 = (struct sockaddr_in6 *)addr;
3295                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3296                                                 error = EINVAL;
3297                                                 SCTP_TCB_UNLOCK(stcb);
3298                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3299                                                 break;
3300                                         }
3301                                 } else
3302 #endif
3303                                 {
3304                                         error = EAFNOSUPPORT;
3305                                         SCTP_TCB_UNLOCK(stcb);
3306                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3307                                         break;
3308                                 }
3309                         }
3310                         if (stcb != NULL) {
3311                                 if (net != NULL) {
3312                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3313                                         thlds->spt_pathpfthld = net->pf_threshold;
3314                                 } else {
3315                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3316                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3317                                 }
3318                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3319                                 SCTP_TCB_UNLOCK(stcb);
3320                         } else {
3321                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3322                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3323                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3324                                         /* Use endpoint defaults */
3325                                         SCTP_INP_RLOCK(inp);
3326                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3327                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3328                                         SCTP_INP_RUNLOCK(inp);
3329                                 } else {
3330                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3331                                         error = EINVAL;
3332                                 }
3333                         }
3334                         if (error == 0) {
3335                                 *optsize = sizeof(struct sctp_paddrthlds);
3336                         }
3337                         break;
3338                 }
3339         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3340                 {
3341                         struct sctp_udpencaps *encaps;
3342                         struct sctp_nets *net;
3343                         struct sockaddr *addr;
3344
3345 #if defined(INET) && defined(INET6)
3346                         struct sockaddr_in sin_store;
3347
3348 #endif
3349
3350                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3351                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3352
3353 #if defined(INET) && defined(INET6)
3354                         if (encaps->sue_address.ss_family == AF_INET6) {
3355                                 struct sockaddr_in6 *sin6;
3356
3357                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3358                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3359                                         in6_sin6_2_sin(&sin_store, sin6);
3360                                         addr = (struct sockaddr *)&sin_store;
3361                                 } else {
3362                                         addr = (struct sockaddr *)&encaps->sue_address;
3363                                 }
3364                         } else {
3365                                 addr = (struct sockaddr *)&encaps->sue_address;
3366                         }
3367 #else
3368                         addr = (struct sockaddr *)&encaps->sue_address;
3369 #endif
3370                         if (stcb) {
3371                                 net = sctp_findnet(stcb, addr);
3372                         } else {
3373                                 /*
3374                                  * We increment here since
3375                                  * sctp_findassociation_ep_addr() wil do a
3376                                  * decrement if it finds the stcb as long as
3377                                  * the locked tcb (last argument) is NOT a
3378                                  * TCB.. aka NULL.
3379                                  */
3380                                 net = NULL;
3381                                 SCTP_INP_INCR_REF(inp);
3382                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3383                                 if (stcb == NULL) {
3384                                         SCTP_INP_DECR_REF(inp);
3385                                 }
3386                         }
3387                         if ((stcb != NULL) && (net == NULL)) {
3388 #ifdef INET
3389                                 if (addr->sa_family == AF_INET) {
3390                                         struct sockaddr_in *sin;
3391
3392                                         sin = (struct sockaddr_in *)addr;
3393                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3394                                                 error = EINVAL;
3395                                                 SCTP_TCB_UNLOCK(stcb);
3396                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3397                                                 break;
3398                                         }
3399                                 } else
3400 #endif
3401 #ifdef INET6
3402                                 if (addr->sa_family == AF_INET6) {
3403                                         struct sockaddr_in6 *sin6;
3404
3405                                         sin6 = (struct sockaddr_in6 *)addr;
3406                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3407                                                 error = EINVAL;
3408                                                 SCTP_TCB_UNLOCK(stcb);
3409                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3410                                                 break;
3411                                         }
3412                                 } else
3413 #endif
3414                                 {
3415                                         error = EAFNOSUPPORT;
3416                                         SCTP_TCB_UNLOCK(stcb);
3417                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3418                                         break;
3419                                 }
3420                         }
3421                         if (stcb != NULL) {
3422                                 if (net) {
3423                                         encaps->sue_port = net->port;
3424                                 } else {
3425                                         encaps->sue_port = stcb->asoc.port;
3426                                 }
3427                                 SCTP_TCB_UNLOCK(stcb);
3428                         } else {
3429                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3430                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3431                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3432                                         SCTP_INP_RLOCK(inp);
3433                                         encaps->sue_port = inp->sctp_ep.port;
3434                                         SCTP_INP_RUNLOCK(inp);
3435                                 } else {
3436                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3437                                         error = EINVAL;
3438                                 }
3439                         }
3440                         if (error == 0) {
3441                                 *optsize = sizeof(struct sctp_udpencaps);
3442                         }
3443                         break;
3444                 }
3445         case SCTP_ECN_SUPPORTED:
3446                 {
3447                         struct sctp_assoc_value *av;
3448
3449                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3450                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3451
3452                         if (stcb) {
3453                                 av->assoc_value = stcb->asoc.ecn_supported;
3454                                 SCTP_TCB_UNLOCK(stcb);
3455                         } else {
3456                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3457                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3458                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3459                                         SCTP_INP_RLOCK(inp);
3460                                         av->assoc_value = inp->ecn_supported;
3461                                         SCTP_INP_RUNLOCK(inp);
3462                                 } else {
3463                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3464                                         error = EINVAL;
3465                                 }
3466                         }
3467                         if (error == 0) {
3468                                 *optsize = sizeof(struct sctp_assoc_value);
3469                         }
3470                         break;
3471                 }
3472         case SCTP_PR_SUPPORTED:
3473                 {
3474                         struct sctp_assoc_value *av;
3475
3476                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3477                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3478
3479                         if (stcb) {
3480                                 av->assoc_value = stcb->asoc.prsctp_supported;
3481                                 SCTP_TCB_UNLOCK(stcb);
3482                         } else {
3483                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3484                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3485                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3486                                         SCTP_INP_RLOCK(inp);
3487                                         av->assoc_value = inp->prsctp_supported;
3488                                         SCTP_INP_RUNLOCK(inp);
3489                                 } else {
3490                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3491                                         error = EINVAL;
3492                                 }
3493                         }
3494                         if (error == 0) {
3495                                 *optsize = sizeof(struct sctp_assoc_value);
3496                         }
3497                         break;
3498                 }
3499         case SCTP_AUTH_SUPPORTED:
3500                 {
3501                         struct sctp_assoc_value *av;
3502
3503                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3504                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3505
3506                         if (stcb) {
3507                                 av->assoc_value = stcb->asoc.auth_supported;
3508                                 SCTP_TCB_UNLOCK(stcb);
3509                         } else {
3510                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3511                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3512                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3513                                         SCTP_INP_RLOCK(inp);
3514                                         av->assoc_value = inp->auth_supported;
3515                                         SCTP_INP_RUNLOCK(inp);
3516                                 } else {
3517                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3518                                         error = EINVAL;
3519                                 }
3520                         }
3521                         if (error == 0) {
3522                                 *optsize = sizeof(struct sctp_assoc_value);
3523                         }
3524                         break;
3525                 }
3526         case SCTP_ASCONF_SUPPORTED:
3527                 {
3528                         struct sctp_assoc_value *av;
3529
3530                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3531                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3532
3533                         if (stcb) {
3534                                 av->assoc_value = stcb->asoc.asconf_supported;
3535                                 SCTP_TCB_UNLOCK(stcb);
3536                         } else {
3537                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3538                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3539                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3540                                         SCTP_INP_RLOCK(inp);
3541                                         av->assoc_value = inp->asconf_supported;
3542                                         SCTP_INP_RUNLOCK(inp);
3543                                 } else {
3544                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3545                                         error = EINVAL;
3546                                 }
3547                         }
3548                         if (error == 0) {
3549                                 *optsize = sizeof(struct sctp_assoc_value);
3550                         }
3551                         break;
3552                 }
3553         case SCTP_RECONFIG_SUPPORTED:
3554                 {
3555                         struct sctp_assoc_value *av;
3556
3557                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3558                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3559
3560                         if (stcb) {
3561                                 av->assoc_value = stcb->asoc.reconfig_supported;
3562                                 SCTP_TCB_UNLOCK(stcb);
3563                         } else {
3564                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3565                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3566                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3567                                         SCTP_INP_RLOCK(inp);
3568                                         av->assoc_value = inp->reconfig_supported;
3569                                         SCTP_INP_RUNLOCK(inp);
3570                                 } else {
3571                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3572                                         error = EINVAL;
3573                                 }
3574                         }
3575                         if (error == 0) {
3576                                 *optsize = sizeof(struct sctp_assoc_value);
3577                         }
3578                         break;
3579                 }
3580         case SCTP_NRSACK_SUPPORTED:
3581                 {
3582                         struct sctp_assoc_value *av;
3583
3584                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3585                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3586
3587                         if (stcb) {
3588                                 av->assoc_value = stcb->asoc.nrsack_supported;
3589                                 SCTP_TCB_UNLOCK(stcb);
3590                         } else {
3591                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3592                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3593                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3594                                         SCTP_INP_RLOCK(inp);
3595                                         av->assoc_value = inp->nrsack_supported;
3596                                         SCTP_INP_RUNLOCK(inp);
3597                                 } else {
3598                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3599                                         error = EINVAL;
3600                                 }
3601                         }
3602                         if (error == 0) {
3603                                 *optsize = sizeof(struct sctp_assoc_value);
3604                         }
3605                         break;
3606                 }
3607         case SCTP_PKTDROP_SUPPORTED:
3608                 {
3609                         struct sctp_assoc_value *av;
3610
3611                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3612                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3613
3614                         if (stcb) {
3615                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3616                                 SCTP_TCB_UNLOCK(stcb);
3617                         } else {
3618                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3619                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3620                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3621                                         SCTP_INP_RLOCK(inp);
3622                                         av->assoc_value = inp->pktdrop_supported;
3623                                         SCTP_INP_RUNLOCK(inp);
3624                                 } else {
3625                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3626                                         error = EINVAL;
3627                                 }
3628                         }
3629                         if (error == 0) {
3630                                 *optsize = sizeof(struct sctp_assoc_value);
3631                         }
3632                         break;
3633                 }
3634         case SCTP_ENABLE_STREAM_RESET:
3635                 {
3636                         struct sctp_assoc_value *av;
3637
3638                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3639                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3640
3641                         if (stcb) {
3642                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3643                                 SCTP_TCB_UNLOCK(stcb);
3644                         } else {
3645                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3646                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3647                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3648                                         SCTP_INP_RLOCK(inp);
3649                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3650                                         SCTP_INP_RUNLOCK(inp);
3651                                 } else {
3652                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3653                                         error = EINVAL;
3654                                 }
3655                         }
3656                         if (error == 0) {
3657                                 *optsize = sizeof(struct sctp_assoc_value);
3658                         }
3659                         break;
3660                 }
3661         case SCTP_PR_STREAM_STATUS:
3662                 {
3663                         struct sctp_prstatus *sprstat;
3664                         uint16_t sid;
3665                         uint16_t policy;
3666
3667                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3668                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3669
3670                         sid = sprstat->sprstat_sid;
3671                         policy = sprstat->sprstat_policy;
3672 #if defined(SCTP_DETAILED_STR_STATS)
3673                         if ((stcb != NULL) &&
3674                             (sid < stcb->asoc.streamoutcnt) &&
3675                             (policy != SCTP_PR_SCTP_NONE) &&
3676                             ((policy <= SCTP_PR_SCTP_MAX) ||
3677                             (policy == SCTP_PR_SCTP_ALL))) {
3678                                 if (policy == SCTP_PR_SCTP_ALL) {
3679                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3680                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3681                                 } else {
3682                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3683                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3684                                 }
3685 #else
3686                         if ((stcb != NULL) &&
3687                             (sid < stcb->asoc.streamoutcnt) &&
3688                             (policy == SCTP_PR_SCTP_ALL)) {
3689                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3690                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3691 #endif
3692                                 SCTP_TCB_UNLOCK(stcb);
3693                                 *optsize = sizeof(struct sctp_prstatus);
3694                         } else {
3695                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3696                                 error = EINVAL;
3697                         }
3698                         break;
3699                 }
3700         case SCTP_PR_ASSOC_STATUS:
3701                 {
3702                         struct sctp_prstatus *sprstat;
3703                         uint16_t policy;
3704
3705                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3706                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3707
3708                         policy = sprstat->sprstat_policy;
3709                         if ((stcb != NULL) &&
3710                             (policy != SCTP_PR_SCTP_NONE) &&
3711                             ((policy <= SCTP_PR_SCTP_MAX) ||
3712                             (policy == SCTP_PR_SCTP_ALL))) {
3713                                 if (policy == SCTP_PR_SCTP_ALL) {
3714                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3715                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3716                                 } else {
3717                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3718                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3719                                 }
3720                                 SCTP_TCB_UNLOCK(stcb);
3721                                 *optsize = sizeof(struct sctp_prstatus);
3722                         } else {
3723                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3724                                 error = EINVAL;
3725                         }
3726                         break;
3727                 }
3728         case SCTP_MAX_CWND:
3729                 {
3730                         struct sctp_assoc_value *av;
3731
3732                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3733                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3734
3735                         if (stcb) {
3736                                 av->assoc_value = stcb->asoc.max_cwnd;
3737                                 SCTP_TCB_UNLOCK(stcb);
3738                         } else {
3739                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3740                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3741                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3742                                         SCTP_INP_RLOCK(inp);
3743                                         av->assoc_value = inp->max_cwnd;
3744                                         SCTP_INP_RUNLOCK(inp);
3745                                 } else {
3746                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3747                                         error = EINVAL;
3748                                 }
3749                         }
3750                         if (error == 0) {
3751                                 *optsize = sizeof(struct sctp_assoc_value);
3752                         }
3753                         break;
3754                 }
3755         default:
3756                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3757                 error = ENOPROTOOPT;
3758                 break;
3759         }                       /* end switch (sopt->sopt_name) */
3760         if (error) {
3761                 *optsize = 0;
3762         }
3763         return (error);
3764 }
3765
3766 static int
3767 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3768     void *p)
3769 {
3770         int error, set_opt;
3771         uint32_t *mopt;
3772         struct sctp_tcb *stcb = NULL;
3773         struct sctp_inpcb *inp = NULL;
3774         uint32_t vrf_id;
3775
3776         if (optval == NULL) {
3777                 SCTP_PRINTF("optval is NULL\n");
3778                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3779                 return (EINVAL);
3780         }
3781         inp = (struct sctp_inpcb *)so->so_pcb;
3782         if (inp == NULL) {
3783                 SCTP_PRINTF("inp is NULL?\n");
3784                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3785                 return (EINVAL);
3786         }
3787         vrf_id = inp->def_vrf_id;
3788
3789         error = 0;
3790         switch (optname) {
3791         case SCTP_NODELAY:
3792         case SCTP_AUTOCLOSE:
3793         case SCTP_AUTO_ASCONF:
3794         case SCTP_EXPLICIT_EOR:
3795         case SCTP_DISABLE_FRAGMENTS:
3796         case SCTP_USE_EXT_RCVINFO:
3797         case SCTP_I_WANT_MAPPED_V4_ADDR:
3798                 /* copy in the option value */
3799                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3800                 set_opt = 0;
3801                 if (error)
3802                         break;
3803                 switch (optname) {
3804                 case SCTP_DISABLE_FRAGMENTS:
3805                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3806                         break;
3807                 case SCTP_AUTO_ASCONF:
3808                         /*
3809                          * NOTE: we don't really support this flag
3810                          */
3811                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3812                                 /* only valid for bound all sockets */
3813                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3814                                     (*mopt != 0)) {
3815                                         /* forbidden by admin */
3816                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3817                                         return (EPERM);
3818                                 }
3819                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3820                         } else {
3821                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3822                                 return (EINVAL);
3823                         }
3824                         break;
3825                 case SCTP_EXPLICIT_EOR:
3826                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3827                         break;
3828                 case SCTP_USE_EXT_RCVINFO:
3829                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3830                         break;
3831                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3832                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3833                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3834                         } else {
3835                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3836                                 return (EINVAL);
3837                         }
3838                         break;
3839                 case SCTP_NODELAY:
3840                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3841                         break;
3842                 case SCTP_AUTOCLOSE:
3843                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3844                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3845                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3846                                 return (EINVAL);
3847                         }
3848                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3849                         /*
3850                          * The value is in ticks. Note this does not effect
3851                          * old associations, only new ones.
3852                          */
3853                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3854                         break;
3855                 }
3856                 SCTP_INP_WLOCK(inp);
3857                 if (*mopt != 0) {
3858                         sctp_feature_on(inp, set_opt);
3859                 } else {
3860                         sctp_feature_off(inp, set_opt);
3861                 }
3862                 SCTP_INP_WUNLOCK(inp);
3863                 break;
3864         case SCTP_REUSE_PORT:
3865                 {
3866                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3867                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3868                                 /* Can't set it after we are bound */
3869                                 error = EINVAL;
3870                                 break;
3871                         }
3872                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3873                                 /* Can't do this for a 1-m socket */
3874                                 error = EINVAL;
3875                                 break;
3876                         }
3877                         if (optval)
3878                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3879                         else
3880                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3881                         break;
3882                 }
3883         case SCTP_PARTIAL_DELIVERY_POINT:
3884                 {
3885                         uint32_t *value;
3886
3887                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3888                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3889                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3890                                 error = EINVAL;
3891                                 break;
3892                         }
3893                         inp->partial_delivery_point = *value;
3894                         break;
3895                 }
3896         case SCTP_FRAGMENT_INTERLEAVE:
3897                 /* not yet until we re-write sctp_recvmsg() */
3898                 {
3899                         uint32_t *level;
3900
3901                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3902                         if (*level == SCTP_FRAG_LEVEL_2) {
3903                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3904                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3905                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3906                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3907                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3908                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3909                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3910                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3911
3912                         } else {
3913                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3914                                 error = EINVAL;
3915                         }
3916                         break;
3917                 }
3918         case SCTP_CMT_ON_OFF:
3919                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3920                         struct sctp_assoc_value *av;
3921
3922                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3923                         if (av->assoc_value > SCTP_CMT_MAX) {
3924                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3925                                 error = EINVAL;
3926                                 break;
3927                         }
3928                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3929                         if (stcb) {
3930                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3931                                 SCTP_TCB_UNLOCK(stcb);
3932                         } else {
3933                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3934                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3935                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3936                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3937                                         SCTP_INP_WLOCK(inp);
3938                                         inp->sctp_cmt_on_off = av->assoc_value;
3939                                         SCTP_INP_WUNLOCK(inp);
3940                                 }
3941                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3942                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3943                                         SCTP_INP_RLOCK(inp);
3944                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3945                                                 SCTP_TCB_LOCK(stcb);
3946                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3947                                                 SCTP_TCB_UNLOCK(stcb);
3948                                         }
3949                                         SCTP_INP_RUNLOCK(inp);
3950                                 }
3951                         }
3952                 } else {
3953                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3954                         error = ENOPROTOOPT;
3955                 }
3956                 break;
3957         case SCTP_PLUGGABLE_CC:
3958                 {
3959                         struct sctp_assoc_value *av;
3960                         struct sctp_nets *net;
3961
3962                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3963                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3964                             (av->assoc_value != SCTP_CC_HSTCP) &&
3965                             (av->assoc_value != SCTP_CC_HTCP) &&
3966                             (av->assoc_value != SCTP_CC_RTCC)) {
3967                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3968                                 error = EINVAL;
3969                                 break;
3970                         }
3971                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3972                         if (stcb) {
3973                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3974                                 stcb->asoc.congestion_control_module = av->assoc_value;
3975                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3976                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3977                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3978                                         }
3979                                 }
3980                                 SCTP_TCB_UNLOCK(stcb);
3981                         } else {
3982                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3983                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3984                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3985                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3986                                         SCTP_INP_WLOCK(inp);
3987                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3988                                         SCTP_INP_WUNLOCK(inp);
3989                                 }
3990                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3991                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3992                                         SCTP_INP_RLOCK(inp);
3993                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3994                                                 SCTP_TCB_LOCK(stcb);
3995                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3996                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3997                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3998                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3999                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
4000                                                         }
4001                                                 }
4002                                                 SCTP_TCB_UNLOCK(stcb);
4003                                         }
4004                                         SCTP_INP_RUNLOCK(inp);
4005                                 }
4006                         }
4007                         break;
4008                 }
4009         case SCTP_CC_OPTION:
4010                 {
4011                         struct sctp_cc_option *cc_opt;
4012
4013                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
4014                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
4015                         if (stcb == NULL) {
4016                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4017                                         SCTP_INP_RLOCK(inp);
4018                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4019                                                 SCTP_TCB_LOCK(stcb);
4020                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4021                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4022                                                 }
4023                                                 SCTP_TCB_UNLOCK(stcb);
4024                                         }
4025                                         SCTP_INP_RUNLOCK(inp);
4026                                 } else {
4027                                         error = EINVAL;
4028                                 }
4029                         } else {
4030                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4031                                         error = ENOTSUP;
4032                                 } else {
4033                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4034                                             cc_opt);
4035                                 }
4036                                 SCTP_TCB_UNLOCK(stcb);
4037                         }
4038                         break;
4039                 }
4040         case SCTP_PLUGGABLE_SS:
4041                 {
4042                         struct sctp_assoc_value *av;
4043
4044                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4045                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4046                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4047                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4048                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4049                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4050                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4051                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4052                                 error = EINVAL;
4053                                 break;
4054                         }
4055                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4056                         if (stcb) {
4057                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4058                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4059                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4060                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4061                                 SCTP_TCB_UNLOCK(stcb);
4062                         } else {
4063                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4064                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4065                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4066                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4067                                         SCTP_INP_WLOCK(inp);
4068                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4069                                         SCTP_INP_WUNLOCK(inp);
4070                                 }
4071                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4072                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4073                                         SCTP_INP_RLOCK(inp);
4074                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4075                                                 SCTP_TCB_LOCK(stcb);
4076                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4077                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4078                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4079                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4080                                                 SCTP_TCB_UNLOCK(stcb);
4081                                         }
4082                                         SCTP_INP_RUNLOCK(inp);
4083                                 }
4084                         }
4085                         break;
4086                 }
4087         case SCTP_SS_VALUE:
4088                 {
4089                         struct sctp_stream_value *av;
4090
4091                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4092                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4093                         if (stcb) {
4094                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4095                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4096                                     av->stream_value) < 0)) {
4097                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4098                                         error = EINVAL;
4099                                 }
4100                                 SCTP_TCB_UNLOCK(stcb);
4101                         } else {
4102                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4103                                         SCTP_INP_RLOCK(inp);
4104                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4105                                                 SCTP_TCB_LOCK(stcb);
4106                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4107                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4108                                                             &stcb->asoc,
4109                                                             &stcb->asoc.strmout[av->stream_id],
4110                                                             av->stream_value);
4111                                                 }
4112                                                 SCTP_TCB_UNLOCK(stcb);
4113                                         }
4114                                         SCTP_INP_RUNLOCK(inp);
4115                                 } else {
4116                                         /*
4117                                          * Can't set stream value without
4118                                          * association
4119                                          */
4120                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4121                                         error = EINVAL;
4122                                 }
4123                         }
4124                         break;
4125                 }
4126         case SCTP_CLR_STAT_LOG:
4127                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4128                 error = EOPNOTSUPP;
4129                 break;
4130         case SCTP_CONTEXT:
4131                 {
4132                         struct sctp_assoc_value *av;
4133
4134                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4135                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4136
4137                         if (stcb) {
4138                                 stcb->asoc.context = av->assoc_value;
4139                                 SCTP_TCB_UNLOCK(stcb);
4140                         } else {
4141                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4142                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4143                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4144                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4145                                         SCTP_INP_WLOCK(inp);
4146                                         inp->sctp_context = av->assoc_value;
4147                                         SCTP_INP_WUNLOCK(inp);
4148                                 }
4149                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4150                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4151                                         SCTP_INP_RLOCK(inp);
4152                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4153                                                 SCTP_TCB_LOCK(stcb);
4154                                                 stcb->asoc.context = av->assoc_value;
4155                                                 SCTP_TCB_UNLOCK(stcb);
4156                                         }
4157                                         SCTP_INP_RUNLOCK(inp);
4158                                 }
4159                         }
4160                         break;
4161                 }
4162         case SCTP_VRF_ID:
4163                 {
4164                         uint32_t *default_vrfid;
4165
4166                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4167                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4168                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4169                                 error = EINVAL;
4170                                 break;
4171                         }
4172                         inp->def_vrf_id = *default_vrfid;
4173                         break;
4174                 }
4175         case SCTP_DEL_VRF_ID:
4176                 {
4177                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4178                         error = EOPNOTSUPP;
4179                         break;
4180                 }
4181         case SCTP_ADD_VRF_ID:
4182                 {
4183                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4184                         error = EOPNOTSUPP;
4185                         break;
4186                 }
4187         case SCTP_DELAYED_SACK:
4188                 {
4189                         struct sctp_sack_info *sack;
4190
4191                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4192                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4193                         if (sack->sack_delay) {
4194                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4195                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4196                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4197                                         sack->sack_delay = TICKS_TO_MSEC(1);
4198                                 }
4199                         }
4200                         if (stcb) {
4201                                 if (sack->sack_delay) {
4202                                         stcb->asoc.delayed_ack = sack->sack_delay;
4203                                 }
4204                                 if (sack->sack_freq) {
4205                                         stcb->asoc.sack_freq = sack->sack_freq;
4206                                 }
4207                                 SCTP_TCB_UNLOCK(stcb);
4208                         } else {
4209                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4210                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4211                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4212                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4213                                         SCTP_INP_WLOCK(inp);
4214                                         if (sack->sack_delay) {
4215                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4216                                         }
4217                                         if (sack->sack_freq) {
4218                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4219                                         }
4220                                         SCTP_INP_WUNLOCK(inp);
4221                                 }
4222                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4223                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4224                                         SCTP_INP_RLOCK(inp);
4225                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4226                                                 SCTP_TCB_LOCK(stcb);
4227                                                 if (sack->sack_delay) {
4228                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4229                                                 }
4230                                                 if (sack->sack_freq) {
4231                                                         stcb->asoc.sack_freq = sack->sack_freq;
4232                                                 }
4233                                                 SCTP_TCB_UNLOCK(stcb);
4234                                         }
4235                                         SCTP_INP_RUNLOCK(inp);
4236                                 }
4237                         }
4238                         break;
4239                 }
4240         case SCTP_AUTH_CHUNK:
4241                 {
4242                         struct sctp_authchunk *sauth;
4243
4244                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4245
4246                         SCTP_INP_WLOCK(inp);
4247                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4248                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4249                                 error = EINVAL;
4250                         }
4251                         SCTP_INP_WUNLOCK(inp);
4252                         break;
4253                 }
4254         case SCTP_AUTH_KEY:
4255                 {
4256                         struct sctp_authkey *sca;
4257                         struct sctp_keyhead *shared_keys;
4258                         sctp_sharedkey_t *shared_key;
4259                         sctp_key_t *key = NULL;
4260                         size_t size;
4261
4262                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4263                         if (sca->sca_keylength == 0) {
4264                                 size = optsize - sizeof(struct sctp_authkey);
4265                         } else {
4266                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4267                                         size = sca->sca_keylength;
4268                                 } else {
4269                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4270                                         error = EINVAL;
4271                                         break;
4272                                 }
4273                         }
4274                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4275
4276                         if (stcb) {
4277                                 shared_keys = &stcb->asoc.shared_keys;
4278                                 /* clear the cached keys for this key id */
4279                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4280                                 /*
4281                                  * create the new shared key and
4282                                  * insert/replace it
4283                                  */
4284                                 if (size > 0) {
4285                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4286                                         if (key == NULL) {
4287                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4288                                                 error = ENOMEM;
4289                                                 SCTP_TCB_UNLOCK(stcb);
4290                                                 break;
4291                                         }
4292                                 }
4293                                 shared_key = sctp_alloc_sharedkey();
4294                                 if (shared_key == NULL) {
4295                                         sctp_free_key(key);
4296                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4297                                         error = ENOMEM;
4298                                         SCTP_TCB_UNLOCK(stcb);
4299                                         break;
4300                                 }
4301                                 shared_key->key = key;
4302                                 shared_key->keyid = sca->sca_keynumber;
4303                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4304                                 SCTP_TCB_UNLOCK(stcb);
4305                         } else {
4306                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4307                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4308                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4309                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4310                                         SCTP_INP_WLOCK(inp);
4311                                         shared_keys = &inp->sctp_ep.shared_keys;
4312                                         /*
4313                                          * clear the cached keys on all
4314                                          * assocs for this key id
4315                                          */
4316                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4317                                         /*
4318                                          * create the new shared key and
4319                                          * insert/replace it
4320                                          */
4321                                         if (size > 0) {
4322                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4323                                                 if (key == NULL) {
4324                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4325                                                         error = ENOMEM;
4326                                                         SCTP_INP_WUNLOCK(inp);
4327                                                         break;
4328                                                 }
4329                                         }
4330                                         shared_key = sctp_alloc_sharedkey();
4331                                         if (shared_key == NULL) {
4332                                                 sctp_free_key(key);
4333                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4334                                                 error = ENOMEM;
4335                                                 SCTP_INP_WUNLOCK(inp);
4336                                                 break;
4337                                         }
4338                                         shared_key->key = key;
4339                                         shared_key->keyid = sca->sca_keynumber;
4340                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4341                                         SCTP_INP_WUNLOCK(inp);
4342                                 }
4343                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4344                                     (sca->sca_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                                                 shared_keys = &stcb->asoc.shared_keys;
4349                                                 /*
4350                                                  * clear the cached keys for
4351                                                  * this key id
4352                                                  */
4353                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4354                                                 /*
4355                                                  * create the new shared key
4356                                                  * and insert/replace it
4357                                                  */
4358                                                 if (size > 0) {
4359                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4360                                                         if (key == NULL) {
4361                                                                 SCTP_TCB_UNLOCK(stcb);
4362                                                                 continue;
4363                                                         }
4364                                                 }
4365                                                 shared_key = sctp_alloc_sharedkey();
4366                                                 if (shared_key == NULL) {
4367                                                         sctp_free_key(key);
4368                                                         SCTP_TCB_UNLOCK(stcb);
4369                                                         continue;
4370                                                 }
4371                                                 shared_key->key = key;
4372                                                 shared_key->keyid = sca->sca_keynumber;
4373                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4374                                                 SCTP_TCB_UNLOCK(stcb);
4375                                         }
4376                                         SCTP_INP_RUNLOCK(inp);
4377                                 }
4378                         }
4379                         break;
4380                 }
4381         case SCTP_HMAC_IDENT:
4382                 {
4383                         struct sctp_hmacalgo *shmac;
4384                         sctp_hmaclist_t *hmaclist;
4385                         uint16_t hmacid;
4386                         uint32_t i;
4387
4388                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4389                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4390                             (shmac->shmac_number_of_idents > 0xffff)) {
4391                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4392                                 error = EINVAL;
4393                                 break;
4394                         }
4395                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4396                         if (hmaclist == NULL) {
4397                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4398                                 error = ENOMEM;
4399                                 break;
4400                         }
4401                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4402                                 hmacid = shmac->shmac_idents[i];
4403                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4404                                          /* invalid HMACs were found */ ;
4405                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4406                                         error = EINVAL;
4407                                         sctp_free_hmaclist(hmaclist);
4408                                         goto sctp_set_hmac_done;
4409                                 }
4410                         }
4411                         for (i = 0; i < hmaclist->num_algo; i++) {
4412                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4413                                         /* already in list */
4414                                         break;
4415                                 }
4416                         }
4417                         if (i == hmaclist->num_algo) {
4418                                 /* not found in list */
4419                                 sctp_free_hmaclist(hmaclist);
4420                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4421                                 error = EINVAL;
4422                                 break;
4423                         }
4424                         /* set it on the endpoint */
4425                         SCTP_INP_WLOCK(inp);
4426                         if (inp->sctp_ep.local_hmacs)
4427                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4428                         inp->sctp_ep.local_hmacs = hmaclist;
4429                         SCTP_INP_WUNLOCK(inp);
4430         sctp_set_hmac_done:
4431                         break;
4432                 }
4433         case SCTP_AUTH_ACTIVE_KEY:
4434                 {
4435                         struct sctp_authkeyid *scact;
4436
4437                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4438                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4439
4440                         /* set the active key on the right place */
4441                         if (stcb) {
4442                                 /* set the active key on the assoc */
4443                                 if (sctp_auth_setactivekey(stcb,
4444                                     scact->scact_keynumber)) {
4445                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4446                                             SCTP_FROM_SCTP_USRREQ,
4447                                             EINVAL);
4448                                         error = EINVAL;
4449                                 }
4450                                 SCTP_TCB_UNLOCK(stcb);
4451                         } else {
4452                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4453                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4454                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4455                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4456                                         SCTP_INP_WLOCK(inp);
4457                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4458                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4459                                                 error = EINVAL;
4460                                         }
4461                                         SCTP_INP_WUNLOCK(inp);
4462                                 }
4463                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4464                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4465                                         SCTP_INP_RLOCK(inp);
4466                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4467                                                 SCTP_TCB_LOCK(stcb);
4468                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4469                                                 SCTP_TCB_UNLOCK(stcb);
4470                                         }
4471                                         SCTP_INP_RUNLOCK(inp);
4472                                 }
4473                         }
4474                         break;
4475                 }
4476         case SCTP_AUTH_DELETE_KEY:
4477                 {
4478                         struct sctp_authkeyid *scdel;
4479
4480                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4481                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4482
4483                         /* delete the key from the right place */
4484                         if (stcb) {
4485                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4486                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4487                                         error = EINVAL;
4488                                 }
4489                                 SCTP_TCB_UNLOCK(stcb);
4490                         } else {
4491                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4492                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4493                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4494                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4495                                         SCTP_INP_WLOCK(inp);
4496                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4497                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4498                                                 error = EINVAL;
4499                                         }
4500                                         SCTP_INP_WUNLOCK(inp);
4501                                 }
4502                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4503                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4504                                         SCTP_INP_RLOCK(inp);
4505                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4506                                                 SCTP_TCB_LOCK(stcb);
4507                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4508                                                 SCTP_TCB_UNLOCK(stcb);
4509                                         }
4510                                         SCTP_INP_RUNLOCK(inp);
4511                                 }
4512                         }
4513                         break;
4514                 }
4515         case SCTP_AUTH_DEACTIVATE_KEY:
4516                 {
4517                         struct sctp_authkeyid *keyid;
4518
4519                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4520                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4521
4522                         /* deactivate the key from the right place */
4523                         if (stcb) {
4524                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4525                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4526                                         error = EINVAL;
4527                                 }
4528                                 SCTP_TCB_UNLOCK(stcb);
4529                         } else {
4530                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4531                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4532                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4533                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4534                                         SCTP_INP_WLOCK(inp);
4535                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4536                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4537                                                 error = EINVAL;
4538                                         }
4539                                         SCTP_INP_WUNLOCK(inp);
4540                                 }
4541                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4542                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4543                                         SCTP_INP_RLOCK(inp);
4544                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4545                                                 SCTP_TCB_LOCK(stcb);
4546                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4547                                                 SCTP_TCB_UNLOCK(stcb);
4548                                         }
4549                                         SCTP_INP_RUNLOCK(inp);
4550                                 }
4551                         }
4552                         break;
4553                 }
4554         case SCTP_ENABLE_STREAM_RESET:
4555                 {
4556                         struct sctp_assoc_value *av;
4557
4558                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4559                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4560                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4561                                 error = EINVAL;
4562                                 break;
4563                         }
4564                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4565                         if (stcb) {
4566                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4567                                 SCTP_TCB_UNLOCK(stcb);
4568                         } else {
4569                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4570                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4571                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4572                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4573                                         SCTP_INP_WLOCK(inp);
4574                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4575                                         SCTP_INP_WUNLOCK(inp);
4576                                 }
4577                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4578                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4579                                         SCTP_INP_RLOCK(inp);
4580                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4581                                                 SCTP_TCB_LOCK(stcb);
4582                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4583                                                 SCTP_TCB_UNLOCK(stcb);
4584                                         }
4585                                         SCTP_INP_RUNLOCK(inp);
4586                                 }
4587                         }
4588                         break;
4589                 }
4590         case SCTP_RESET_STREAMS:
4591                 {
4592                         struct sctp_reset_streams *strrst;
4593                         int i, send_out = 0;
4594                         int send_in = 0;
4595
4596                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4597                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4598                         if (stcb == NULL) {
4599                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4600                                 error = ENOENT;
4601                                 break;
4602                         }
4603                         if (stcb->asoc.reconfig_supported == 0) {
4604                                 /*
4605                                  * Peer does not support the chunk type.
4606                                  */
4607                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4608                                 error = EOPNOTSUPP;
4609                                 SCTP_TCB_UNLOCK(stcb);
4610                                 break;
4611                         }
4612                         if (sizeof(struct sctp_reset_streams) +
4613                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4614                                 error = EINVAL;
4615                                 SCTP_TCB_UNLOCK(stcb);
4616                                 break;
4617                         }
4618                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4619                                 send_in = 1;
4620                                 if (stcb->asoc.stream_reset_outstanding) {
4621                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4622                                         error = EALREADY;
4623                                         SCTP_TCB_UNLOCK(stcb);
4624                                         break;
4625                                 }
4626                         }
4627                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4628                                 send_out = 1;
4629                         }
4630                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4631                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4632                                 error = ENOMEM;
4633                                 SCTP_TCB_UNLOCK(stcb);
4634                                 break;
4635                         }
4636                         if ((send_in == 0) && (send_out == 0)) {
4637                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4638                                 error = EINVAL;
4639                                 SCTP_TCB_UNLOCK(stcb);
4640                                 break;
4641                         }
4642                         for (i = 0; i < strrst->srs_number_streams; i++) {
4643                                 if ((send_in) &&
4644                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4645                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4646                                         error = EINVAL;
4647                                         break;
4648                                 }
4649                                 if ((send_out) &&
4650                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4651                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4652                                         error = EINVAL;
4653                                         break;
4654                                 }
4655                         }
4656                         if (error) {
4657                                 SCTP_TCB_UNLOCK(stcb);
4658                                 break;
4659                         }
4660                         if (send_out) {
4661                                 int cnt;
4662                                 uint16_t strm;
4663
4664                                 if (strrst->srs_number_streams) {
4665                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4666                                                 strm = strrst->srs_stream_list[i];
4667                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4668                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4669                                                         cnt++;
4670                                                 }
4671                                         }
4672                                 } else {
4673                                         /* Its all */
4674                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4675                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4676                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4677                                                         cnt++;
4678                                                 }
4679                                         }
4680                                 }
4681                         }
4682                         if (send_in) {
4683                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4684                                     strrst->srs_stream_list,
4685                                     send_in, 0, 0, 0, 0, 0);
4686                         } else
4687                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4688                         if (!error)
4689                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4690
4691                         SCTP_TCB_UNLOCK(stcb);
4692                         break;
4693                 }
4694         case SCTP_ADD_STREAMS:
4695                 {
4696                         struct sctp_add_streams *stradd;
4697                         uint8_t addstream = 0;
4698                         uint16_t add_o_strmcnt = 0;
4699                         uint16_t add_i_strmcnt = 0;
4700
4701                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4702                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4703                         if (stcb == NULL) {
4704                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4705                                 error = ENOENT;
4706                                 break;
4707                         }
4708                         if (stcb->asoc.reconfig_supported == 0) {
4709                                 /*
4710                                  * Peer does not support the chunk type.
4711                                  */
4712                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4713                                 error = EOPNOTSUPP;
4714                                 SCTP_TCB_UNLOCK(stcb);
4715                                 break;
4716                         }
4717                         if (stcb->asoc.stream_reset_outstanding) {
4718                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4719                                 error = EALREADY;
4720                                 SCTP_TCB_UNLOCK(stcb);
4721                                 break;
4722                         }
4723                         if ((stradd->sas_outstrms == 0) &&
4724                             (stradd->sas_instrms == 0)) {
4725                                 error = EINVAL;
4726                                 goto skip_stuff;
4727                         }
4728                         if (stradd->sas_outstrms) {
4729                                 addstream = 1;
4730                                 /* We allocate here */
4731                                 add_o_strmcnt = stradd->sas_outstrms;
4732                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4733                                         /* You can't have more than 64k */
4734                                         error = EINVAL;
4735                                         goto skip_stuff;
4736                                 }
4737                         }
4738                         if (stradd->sas_instrms) {
4739                                 int cnt;
4740
4741                                 addstream |= 2;
4742                                 /*
4743                                  * We allocate inside
4744                                  * sctp_send_str_reset_req()
4745                                  */
4746                                 add_i_strmcnt = stradd->sas_instrms;
4747                                 cnt = add_i_strmcnt;
4748                                 cnt += stcb->asoc.streamincnt;
4749                                 if (cnt > 0x0000ffff) {
4750                                         /* You can't have more than 64k */
4751                                         error = EINVAL;
4752                                         goto skip_stuff;
4753                                 }
4754                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4755                                         /* More than you are allowed */
4756                                         error = EINVAL;
4757                                         goto skip_stuff;
4758                                 }
4759                         }
4760                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4761                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4762         skip_stuff:
4763                         SCTP_TCB_UNLOCK(stcb);
4764                         break;
4765                 }
4766         case SCTP_RESET_ASSOC:
4767                 {
4768                         int i;
4769                         uint32_t *value;
4770
4771                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4772                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4773                         if (stcb == NULL) {
4774                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4775                                 error = ENOENT;
4776                                 break;
4777                         }
4778                         if (stcb->asoc.reconfig_supported == 0) {
4779                                 /*
4780                                  * Peer does not support the chunk type.
4781                                  */
4782                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4783                                 error = EOPNOTSUPP;
4784                                 SCTP_TCB_UNLOCK(stcb);
4785                                 break;
4786                         }
4787                         if (stcb->asoc.stream_reset_outstanding) {
4788                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4789                                 error = EALREADY;
4790                                 SCTP_TCB_UNLOCK(stcb);
4791                                 break;
4792                         }
4793                         /*
4794                          * Is there any data pending in the send or sent
4795                          * queues?
4796                          */
4797                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4798                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4799                 busy_out:
4800                                 error = EBUSY;
4801                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4802                                 SCTP_TCB_UNLOCK(stcb);
4803                                 break;
4804                         }
4805                         /* Do any streams have data queued? */
4806                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4807                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4808                                         goto busy_out;
4809                                 }
4810                         }
4811                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4812                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4813                         SCTP_TCB_UNLOCK(stcb);
4814                         break;
4815                 }
4816         case SCTP_CONNECT_X:
4817                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4818                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4819                         error = EINVAL;
4820                         break;
4821                 }
4822                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4823                 break;
4824         case SCTP_CONNECT_X_DELAYED:
4825                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4826                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4827                         error = EINVAL;
4828                         break;
4829                 }
4830                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 1);
4831                 break;
4832         case SCTP_CONNECT_X_COMPLETE:
4833                 {
4834                         struct sockaddr *sa;
4835
4836                         /* FIXME MT: check correct? */
4837                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4838
4839                         /* find tcb */
4840                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4841                                 SCTP_INP_RLOCK(inp);
4842                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4843                                 if (stcb) {
4844                                         SCTP_TCB_LOCK(stcb);
4845                                 }
4846                                 SCTP_INP_RUNLOCK(inp);
4847                         } else {
4848                                 /*
4849                                  * We increment here since
4850                                  * sctp_findassociation_ep_addr() wil do a
4851                                  * decrement if it finds the stcb as long as
4852                                  * the locked tcb (last argument) is NOT a
4853                                  * TCB.. aka NULL.
4854                                  */
4855                                 SCTP_INP_INCR_REF(inp);
4856                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4857                                 if (stcb == NULL) {
4858                                         SCTP_INP_DECR_REF(inp);
4859                                 }
4860                         }
4861
4862                         if (stcb == NULL) {
4863                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4864                                 error = ENOENT;
4865                                 break;
4866                         }
4867                         if (stcb->asoc.delayed_connection == 1) {
4868                                 stcb->asoc.delayed_connection = 0;
4869                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4870                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4871                                     stcb->asoc.primary_destination,
4872                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4873                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4874                         } else {
4875                                 /*
4876                                  * already expired or did not use delayed
4877                                  * connectx
4878                                  */
4879                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4880                                 error = EALREADY;
4881                         }
4882                         SCTP_TCB_UNLOCK(stcb);
4883                         break;
4884                 }
4885         case SCTP_MAX_BURST:
4886                 {
4887                         struct sctp_assoc_value *av;
4888
4889                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4890                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4891
4892                         if (stcb) {
4893                                 stcb->asoc.max_burst = av->assoc_value;
4894                                 SCTP_TCB_UNLOCK(stcb);
4895                         } else {
4896                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4897                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4898                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4899                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4900                                         SCTP_INP_WLOCK(inp);
4901                                         inp->sctp_ep.max_burst = av->assoc_value;
4902                                         SCTP_INP_WUNLOCK(inp);
4903                                 }
4904                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4905                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4906                                         SCTP_INP_RLOCK(inp);
4907                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4908                                                 SCTP_TCB_LOCK(stcb);
4909                                                 stcb->asoc.max_burst = av->assoc_value;
4910                                                 SCTP_TCB_UNLOCK(stcb);
4911                                         }
4912                                         SCTP_INP_RUNLOCK(inp);
4913                                 }
4914                         }
4915                         break;
4916                 }
4917         case SCTP_MAXSEG:
4918                 {
4919                         struct sctp_assoc_value *av;
4920                         int ovh;
4921
4922                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4923                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4924
4925                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4926                                 ovh = SCTP_MED_OVERHEAD;
4927                         } else {
4928                                 ovh = SCTP_MED_V4_OVERHEAD;
4929                         }
4930                         if (stcb) {
4931                                 if (av->assoc_value) {
4932                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4933                                 } else {
4934                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4935                                 }
4936                                 SCTP_TCB_UNLOCK(stcb);
4937                         } else {
4938                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4939                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4940                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4941                                         SCTP_INP_WLOCK(inp);
4942                                         /*
4943                                          * FIXME MT: I think this is not in
4944                                          * tune with the API ID
4945                                          */
4946                                         if (av->assoc_value) {
4947                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4948                                         } else {
4949                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4950                                         }
4951                                         SCTP_INP_WUNLOCK(inp);
4952                                 } else {
4953                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4954                                         error = EINVAL;
4955                                 }
4956                         }
4957                         break;
4958                 }
4959         case SCTP_EVENTS:
4960                 {
4961                         struct sctp_event_subscribe *events;
4962
4963                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4964
4965                         SCTP_INP_WLOCK(inp);
4966                         if (events->sctp_data_io_event) {
4967                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4968                         } else {
4969                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4970                         }
4971
4972                         if (events->sctp_association_event) {
4973                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4974                         } else {
4975                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4976                         }
4977
4978                         if (events->sctp_address_event) {
4979                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4980                         } else {
4981                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4982                         }
4983
4984                         if (events->sctp_send_failure_event) {
4985                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4986                         } else {
4987                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4988                         }
4989
4990                         if (events->sctp_peer_error_event) {
4991                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4992                         } else {
4993                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4994                         }
4995
4996                         if (events->sctp_shutdown_event) {
4997                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4998                         } else {
4999                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5000                         }
5001
5002                         if (events->sctp_partial_delivery_event) {
5003                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5004                         } else {
5005                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
5006                         }
5007
5008                         if (events->sctp_adaptation_layer_event) {
5009                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5010                         } else {
5011                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5012                         }
5013
5014                         if (events->sctp_authentication_event) {
5015                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5016                         } else {
5017                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5018                         }
5019
5020                         if (events->sctp_sender_dry_event) {
5021                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5022                         } else {
5023                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5024                         }
5025
5026                         if (events->sctp_stream_reset_event) {
5027                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5028                         } else {
5029                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5030                         }
5031                         SCTP_INP_WUNLOCK(inp);
5032
5033                         SCTP_INP_RLOCK(inp);
5034                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5035                                 SCTP_TCB_LOCK(stcb);
5036                                 if (events->sctp_association_event) {
5037                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5038                                 } else {
5039                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5040                                 }
5041                                 if (events->sctp_address_event) {
5042                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5043                                 } else {
5044                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5045                                 }
5046                                 if (events->sctp_send_failure_event) {
5047                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5048                                 } else {
5049                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5050                                 }
5051                                 if (events->sctp_peer_error_event) {
5052                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5053                                 } else {
5054                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5055                                 }
5056                                 if (events->sctp_shutdown_event) {
5057                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5058                                 } else {
5059                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5060                                 }
5061                                 if (events->sctp_partial_delivery_event) {
5062                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5063                                 } else {
5064                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5065                                 }
5066                                 if (events->sctp_adaptation_layer_event) {
5067                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5068                                 } else {
5069                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5070                                 }
5071                                 if (events->sctp_authentication_event) {
5072                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5073                                 } else {
5074                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5075                                 }
5076                                 if (events->sctp_sender_dry_event) {
5077                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5078                                 } else {
5079                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5080                                 }
5081                                 if (events->sctp_stream_reset_event) {
5082                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5083                                 } else {
5084                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5085                                 }
5086                                 SCTP_TCB_UNLOCK(stcb);
5087                         }
5088                         /*
5089                          * Send up the sender dry event only for 1-to-1
5090                          * style sockets.
5091                          */
5092                         if (events->sctp_sender_dry_event) {
5093                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5094                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5095                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5096                                         if (stcb) {
5097                                                 SCTP_TCB_LOCK(stcb);
5098                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5099                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5100                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5101                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5102                                                 }
5103                                                 SCTP_TCB_UNLOCK(stcb);
5104                                         }
5105                                 }
5106                         }
5107                         SCTP_INP_RUNLOCK(inp);
5108                         break;
5109                 }
5110         case SCTP_ADAPTATION_LAYER:
5111                 {
5112                         struct sctp_setadaptation *adap_bits;
5113
5114                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5115                         SCTP_INP_WLOCK(inp);
5116                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5117                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5118                         SCTP_INP_WUNLOCK(inp);
5119                         break;
5120                 }
5121 #ifdef SCTP_DEBUG
5122         case SCTP_SET_INITIAL_DBG_SEQ:
5123                 {
5124                         uint32_t *vvv;
5125
5126                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5127                         SCTP_INP_WLOCK(inp);
5128                         inp->sctp_ep.initial_sequence_debug = *vvv;
5129                         SCTP_INP_WUNLOCK(inp);
5130                         break;
5131                 }
5132 #endif
5133         case SCTP_DEFAULT_SEND_PARAM:
5134                 {
5135                         struct sctp_sndrcvinfo *s_info;
5136
5137                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5138                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5139
5140                         if (stcb) {
5141                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5142                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5143                                 } else {
5144                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5145                                         error = EINVAL;
5146                                 }
5147                                 SCTP_TCB_UNLOCK(stcb);
5148                         } else {
5149                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5150                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5151                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5152                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5153                                         SCTP_INP_WLOCK(inp);
5154                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5155                                         SCTP_INP_WUNLOCK(inp);
5156                                 }
5157                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5158                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5159                                         SCTP_INP_RLOCK(inp);
5160                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5161                                                 SCTP_TCB_LOCK(stcb);
5162                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5163                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5164                                                 }
5165                                                 SCTP_TCB_UNLOCK(stcb);
5166                                         }
5167                                         SCTP_INP_RUNLOCK(inp);
5168                                 }
5169                         }
5170                         break;
5171                 }
5172         case SCTP_PEER_ADDR_PARAMS:
5173                 {
5174                         struct sctp_paddrparams *paddrp;
5175                         struct sctp_nets *net;
5176                         struct sockaddr *addr;
5177
5178 #if defined(INET) && defined(INET6)
5179                         struct sockaddr_in sin_store;
5180
5181 #endif
5182
5183                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5184                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5185
5186 #if defined(INET) && defined(INET6)
5187                         if (paddrp->spp_address.ss_family == AF_INET6) {
5188                                 struct sockaddr_in6 *sin6;
5189
5190                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5191                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5192                                         in6_sin6_2_sin(&sin_store, sin6);
5193                                         addr = (struct sockaddr *)&sin_store;
5194                                 } else {
5195                                         addr = (struct sockaddr *)&paddrp->spp_address;
5196                                 }
5197                         } else {
5198                                 addr = (struct sockaddr *)&paddrp->spp_address;
5199                         }
5200 #else
5201                         addr = (struct sockaddr *)&paddrp->spp_address;
5202 #endif
5203                         if (stcb != NULL) {
5204                                 net = sctp_findnet(stcb, addr);
5205                         } else {
5206                                 /*
5207                                  * We increment here since
5208                                  * sctp_findassociation_ep_addr() wil do a
5209                                  * decrement if it finds the stcb as long as
5210                                  * the locked tcb (last argument) is NOT a
5211                                  * TCB.. aka NULL.
5212                                  */
5213                                 net = NULL;
5214                                 SCTP_INP_INCR_REF(inp);
5215                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5216                                     &net, NULL, NULL);
5217                                 if (stcb == NULL) {
5218                                         SCTP_INP_DECR_REF(inp);
5219                                 }
5220                         }
5221                         if ((stcb != NULL) && (net == NULL)) {
5222 #ifdef INET
5223                                 if (addr->sa_family == AF_INET) {
5224
5225                                         struct sockaddr_in *sin;
5226
5227                                         sin = (struct sockaddr_in *)addr;
5228                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5229                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5230                                                 SCTP_TCB_UNLOCK(stcb);
5231                                                 error = EINVAL;
5232                                                 break;
5233                                         }
5234                                 } else
5235 #endif
5236 #ifdef INET6
5237                                 if (addr->sa_family == AF_INET6) {
5238                                         struct sockaddr_in6 *sin6;
5239
5240                                         sin6 = (struct sockaddr_in6 *)addr;
5241                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5242                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5243                                                 SCTP_TCB_UNLOCK(stcb);
5244                                                 error = EINVAL;
5245                                                 break;
5246                                         }
5247                                 } else
5248 #endif
5249                                 {
5250                                         error = EAFNOSUPPORT;
5251                                         SCTP_TCB_UNLOCK(stcb);
5252                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5253                                         break;
5254                                 }
5255                         }
5256                         /* sanity checks */
5257                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5258                                 if (stcb)
5259                                         SCTP_TCB_UNLOCK(stcb);
5260                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5261                                 return (EINVAL);
5262                         }
5263                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5264                                 if (stcb)
5265                                         SCTP_TCB_UNLOCK(stcb);
5266                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5267                                 return (EINVAL);
5268                         }
5269                         if (stcb != NULL) {
5270                                 /************************TCB SPECIFIC SET ******************/
5271                                 if (net != NULL) {
5272                                         /************************NET SPECIFIC SET ******************/
5273                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5274                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5275                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5276                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5277                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5278                                                 }
5279                                                 net->dest_state |= SCTP_ADDR_NOHB;
5280                                         }
5281                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5282                                                 if (paddrp->spp_hbinterval) {
5283                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5284                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5285                                                         net->heart_beat_delay = 0;
5286                                                 }
5287                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5288                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5289                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5290                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5291                                         }
5292                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5293                                                 /* on demand HB */
5294                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5295                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5296                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5297                                         }
5298                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5299                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5300                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5301                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5302                                                 }
5303                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5304                                                 net->mtu = paddrp->spp_pathmtu;
5305                                                 switch (net->ro._l_addr.sa.sa_family) {
5306 #ifdef INET
5307                                                 case AF_INET:
5308                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5309                                                         break;
5310 #endif
5311 #ifdef INET6
5312                                                 case AF_INET6:
5313                                                         net->mtu += SCTP_MIN_OVERHEAD;
5314                                                         break;
5315 #endif
5316                                                 default:
5317                                                         break;
5318                                                 }
5319                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5320                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5321                                                 }
5322                                         }
5323                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5324                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5325                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5326                                                 }
5327                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5328                                         }
5329                                         if (paddrp->spp_pathmaxrxt) {
5330                                                 if (net->dest_state & SCTP_ADDR_PF) {
5331                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5332                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5333                                                         }
5334                                                 } else {
5335                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5336                                                             (net->error_count > net->pf_threshold)) {
5337                                                                 net->dest_state |= SCTP_ADDR_PF;
5338                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5339                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5340                                                                     stcb->sctp_ep, stcb, net,
5341                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5342                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5343                                                         }
5344                                                 }
5345                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5346                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5347                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5348                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5349                                                         }
5350                                                 } else {
5351                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5352                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5353                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5354                                                         }
5355                                                 }
5356                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5357                                         }
5358                                         if (paddrp->spp_flags & SPP_DSCP) {
5359                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5360                                                 net->dscp |= 0x01;
5361                                         }
5362 #ifdef INET6
5363                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5364                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5365                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5366                                                         net->flowlabel |= 0x80000000;
5367                                                 }
5368                                         }
5369 #endif
5370                                 } else {
5371                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5372                                         if (paddrp->spp_pathmaxrxt != 0) {
5373                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5374                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5375                                                         if (net->dest_state & SCTP_ADDR_PF) {
5376                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5377                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5378                                                                 }
5379                                                         } else {
5380                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5381                                                                     (net->error_count > net->pf_threshold)) {
5382                                                                         net->dest_state |= SCTP_ADDR_PF;
5383                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5384                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5385                                                                             stcb->sctp_ep, stcb, net,
5386                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5387                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5388                                                                 }
5389                                                         }
5390                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5391                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5392                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5393                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5394                                                                 }
5395                                                         } else {
5396                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5397                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5398                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5399                                                                 }
5400                                                         }
5401                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5402                                                 }
5403                                         }
5404                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5405                                                 if (paddrp->spp_hbinterval != 0) {
5406                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5407                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5408                                                         stcb->asoc.heart_beat_delay = 0;
5409                                                 }
5410                                                 /* Turn back on the timer */
5411                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5412                                                         if (paddrp->spp_hbinterval != 0) {
5413                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5414                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5415                                                                 net->heart_beat_delay = 0;
5416                                                         }
5417                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5418                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5419                                                         }
5420                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5421                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5422                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5423                                                 }
5424                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5425                                         }
5426                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5427                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5428                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5429                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5430                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5431                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5432                                                                             inp, stcb, net,
5433                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5434                                                                 }
5435                                                         }
5436                                                 }
5437                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5438                                         }
5439                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5440                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5441                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5442                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5443                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5444                                                         }
5445                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5446                                                         net->mtu = paddrp->spp_pathmtu;
5447                                                         switch (net->ro._l_addr.sa.sa_family) {
5448 #ifdef INET
5449                                                         case AF_INET:
5450                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5451                                                                 break;
5452 #endif
5453 #ifdef INET6
5454                                                         case AF_INET6:
5455                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5456                                                                 break;
5457 #endif
5458                                                         default:
5459                                                                 break;
5460                                                         }
5461                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5462                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5463                                                         }
5464                                                 }
5465                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5466                                         }
5467                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5468                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5469                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5470                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5471                                                         }
5472                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5473                                                 }
5474                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5475                                         }
5476                                         if (paddrp->spp_flags & SPP_DSCP) {
5477                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5478                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5479                                                         net->dscp |= 0x01;
5480                                                 }
5481                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5482                                                 stcb->asoc.default_dscp |= 0x01;
5483                                         }
5484 #ifdef INET6
5485                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5486                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5487                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5488                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5489                                                                 net->flowlabel |= 0x80000000;
5490                                                         }
5491                                                 }
5492                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5493                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5494                                         }
5495 #endif
5496                                 }
5497                                 SCTP_TCB_UNLOCK(stcb);
5498                         } else {
5499                                 /************************NO TCB, SET TO default stuff ******************/
5500                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5501                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5502                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5503                                         SCTP_INP_WLOCK(inp);
5504                                         /*
5505                                          * For the TOS/FLOWLABEL stuff you
5506                                          * set it with the options on the
5507                                          * socket
5508                                          */
5509                                         if (paddrp->spp_pathmaxrxt != 0) {
5510                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5511                                         }
5512                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5513                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5514                                         else if (paddrp->spp_hbinterval != 0) {
5515                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5516                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5517                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5518                                         }
5519                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5520                                                 if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5521                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5522                                                 } else if (paddrp->spp_hbinterval) {
5523                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5524                                                 }
5525                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5526                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5527                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5528                                         }
5529                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5530                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5531                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5532                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5533                                         }
5534                                         if (paddrp->spp_flags & SPP_DSCP) {
5535                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5536                                                 inp->sctp_ep.default_dscp |= 0x01;
5537                                         }
5538 #ifdef INET6
5539                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5540                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5541                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5542                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5543                                                 }
5544                                         }
5545 #endif
5546                                         SCTP_INP_WUNLOCK(inp);
5547                                 } else {
5548                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5549                                         error = EINVAL;
5550                                 }
5551                         }
5552                         break;
5553                 }
5554         case SCTP_RTOINFO:
5555                 {
5556                         struct sctp_rtoinfo *srto;
5557                         uint32_t new_init, new_min, new_max;
5558
5559                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5560                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5561
5562                         if (stcb) {
5563                                 if (srto->srto_initial)
5564                                         new_init = srto->srto_initial;
5565                                 else
5566                                         new_init = stcb->asoc.initial_rto;
5567                                 if (srto->srto_max)
5568                                         new_max = srto->srto_max;
5569                                 else
5570                                         new_max = stcb->asoc.maxrto;
5571                                 if (srto->srto_min)
5572                                         new_min = srto->srto_min;
5573                                 else
5574                                         new_min = stcb->asoc.minrto;
5575                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5576                                         stcb->asoc.initial_rto = new_init;
5577                                         stcb->asoc.maxrto = new_max;
5578                                         stcb->asoc.minrto = new_min;
5579                                 } else {
5580                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5581                                         error = EINVAL;
5582                                 }
5583                                 SCTP_TCB_UNLOCK(stcb);
5584                         } else {
5585                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5586                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5587                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5588                                         SCTP_INP_WLOCK(inp);
5589                                         if (srto->srto_initial)
5590                                                 new_init = srto->srto_initial;
5591                                         else
5592                                                 new_init = inp->sctp_ep.initial_rto;
5593                                         if (srto->srto_max)
5594                                                 new_max = srto->srto_max;
5595                                         else
5596                                                 new_max = inp->sctp_ep.sctp_maxrto;
5597                                         if (srto->srto_min)
5598                                                 new_min = srto->srto_min;
5599                                         else
5600                                                 new_min = inp->sctp_ep.sctp_minrto;
5601                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5602                                                 inp->sctp_ep.initial_rto = new_init;
5603                                                 inp->sctp_ep.sctp_maxrto = new_max;
5604                                                 inp->sctp_ep.sctp_minrto = new_min;
5605                                         } else {
5606                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5607                                                 error = EINVAL;
5608                                         }
5609                                         SCTP_INP_WUNLOCK(inp);
5610                                 } else {
5611                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5612                                         error = EINVAL;
5613                                 }
5614                         }
5615                         break;
5616                 }
5617         case SCTP_ASSOCINFO:
5618                 {
5619                         struct sctp_assocparams *sasoc;
5620
5621                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5622                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5623                         if (sasoc->sasoc_cookie_life) {
5624                                 /* boundary check the cookie life */
5625                                 if (sasoc->sasoc_cookie_life < 1000)
5626                                         sasoc->sasoc_cookie_life = 1000;
5627                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5628                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5629                                 }
5630                         }
5631                         if (stcb) {
5632                                 if (sasoc->sasoc_asocmaxrxt)
5633                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5634                                 if (sasoc->sasoc_cookie_life) {
5635                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5636                                 }
5637                                 SCTP_TCB_UNLOCK(stcb);
5638                         } else {
5639                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5640                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5641                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5642                                         SCTP_INP_WLOCK(inp);
5643                                         if (sasoc->sasoc_asocmaxrxt)
5644                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5645                                         if (sasoc->sasoc_cookie_life) {
5646                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5647                                         }
5648                                         SCTP_INP_WUNLOCK(inp);
5649                                 } else {
5650                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5651                                         error = EINVAL;
5652                                 }
5653                         }
5654                         break;
5655                 }
5656         case SCTP_INITMSG:
5657                 {
5658                         struct sctp_initmsg *sinit;
5659
5660                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5661                         SCTP_INP_WLOCK(inp);
5662                         if (sinit->sinit_num_ostreams)
5663                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5664
5665                         if (sinit->sinit_max_instreams)
5666                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5667
5668                         if (sinit->sinit_max_attempts)
5669                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5670
5671                         if (sinit->sinit_max_init_timeo)
5672                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5673                         SCTP_INP_WUNLOCK(inp);
5674                         break;
5675                 }
5676         case SCTP_PRIMARY_ADDR:
5677                 {
5678                         struct sctp_setprim *spa;
5679                         struct sctp_nets *net;
5680                         struct sockaddr *addr;
5681
5682 #if defined(INET) && defined(INET6)
5683                         struct sockaddr_in sin_store;
5684
5685 #endif
5686
5687                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5688                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5689
5690 #if defined(INET) && defined(INET6)
5691                         if (spa->ssp_addr.ss_family == AF_INET6) {
5692                                 struct sockaddr_in6 *sin6;
5693
5694                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5695                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5696                                         in6_sin6_2_sin(&sin_store, sin6);
5697                                         addr = (struct sockaddr *)&sin_store;
5698                                 } else {
5699                                         addr = (struct sockaddr *)&spa->ssp_addr;
5700                                 }
5701                         } else {
5702                                 addr = (struct sockaddr *)&spa->ssp_addr;
5703                         }
5704 #else
5705                         addr = (struct sockaddr *)&spa->ssp_addr;
5706 #endif
5707                         if (stcb != NULL) {
5708                                 net = sctp_findnet(stcb, addr);
5709                         } else {
5710                                 /*
5711                                  * We increment here since
5712                                  * sctp_findassociation_ep_addr() wil do a
5713                                  * decrement if it finds the stcb as long as
5714                                  * the locked tcb (last argument) is NOT a
5715                                  * TCB.. aka NULL.
5716                                  */
5717                                 net = NULL;
5718                                 SCTP_INP_INCR_REF(inp);
5719                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5720                                     &net, NULL, NULL);
5721                                 if (stcb == NULL) {
5722                                         SCTP_INP_DECR_REF(inp);
5723                                 }
5724                         }
5725
5726                         if ((stcb != NULL) && (net != NULL)) {
5727                                 if (net != stcb->asoc.primary_destination) {
5728                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5729                                                 /* Ok we need to set it */
5730                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5731                                                         if ((stcb->asoc.alternate) &&
5732                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5733                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5734                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5735                                                                 stcb->asoc.alternate = NULL;
5736                                                         }
5737                                                 } else {
5738                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5739                                                         error = EINVAL;
5740                                                 }
5741                                         } else {
5742                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5743                                                 error = EINVAL;
5744                                         }
5745                                 }
5746                         } else {
5747                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5748                                 error = EINVAL;
5749                         }
5750                         if (stcb != NULL) {
5751                                 SCTP_TCB_UNLOCK(stcb);
5752                         }
5753                         break;
5754                 }
5755         case SCTP_SET_DYNAMIC_PRIMARY:
5756                 {
5757                         union sctp_sockstore *ss;
5758
5759                         error = priv_check(curthread,
5760                             PRIV_NETINET_RESERVEDPORT);
5761                         if (error)
5762                                 break;
5763
5764                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5765                         /* SUPER USER CHECK? */
5766                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5767                         break;
5768                 }
5769         case SCTP_SET_PEER_PRIMARY_ADDR:
5770                 {
5771                         struct sctp_setpeerprim *sspp;
5772                         struct sockaddr *addr;
5773
5774 #if defined(INET) && defined(INET6)
5775                         struct sockaddr_in sin_store;
5776
5777 #endif
5778
5779                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5780                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5781                         if (stcb != NULL) {
5782                                 struct sctp_ifa *ifa;
5783
5784 #if defined(INET) && defined(INET6)
5785                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5786                                         struct sockaddr_in6 *sin6;
5787
5788                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5789                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5790                                                 in6_sin6_2_sin(&sin_store, sin6);
5791                                                 addr = (struct sockaddr *)&sin_store;
5792                                         } else {
5793                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5794                                         }
5795                                 } else {
5796                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5797                                 }
5798 #else
5799                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5800 #endif
5801                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5802                                 if (ifa == NULL) {
5803                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5804                                         error = EINVAL;
5805                                         goto out_of_it;
5806                                 }
5807                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5808                                         /*
5809                                          * Must validate the ifa found is in
5810                                          * our ep
5811                                          */
5812                                         struct sctp_laddr *laddr;
5813                                         int found = 0;
5814
5815                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5816                                                 if (laddr->ifa == NULL) {
5817                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5818                                                             __FUNCTION__);
5819                                                         continue;
5820                                                 }
5821                                                 if (laddr->ifa == ifa) {
5822                                                         found = 1;
5823                                                         break;
5824                                                 }
5825                                         }
5826                                         if (!found) {
5827                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5828                                                 error = EINVAL;
5829                                                 goto out_of_it;
5830                                         }
5831                                 } else {
5832                                         switch (addr->sa_family) {
5833 #ifdef INET
5834                                         case AF_INET:
5835                                                 {
5836                                                         struct sockaddr_in *sin;
5837
5838                                                         sin = (struct sockaddr_in *)addr;
5839                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5840                                                             &sin->sin_addr) != 0) {
5841                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5842                                                                 error = EINVAL;
5843                                                                 goto out_of_it;
5844                                                         }
5845                                                         break;
5846                                                 }
5847 #endif
5848 #ifdef INET6
5849                                         case AF_INET6:
5850                                                 {
5851                                                         struct sockaddr_in6 *sin6;
5852
5853                                                         sin6 = (struct sockaddr_in6 *)addr;
5854                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5855                                                             &sin6->sin6_addr) != 0) {
5856                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5857                                                                 error = EINVAL;
5858                                                                 goto out_of_it;
5859                                                         }
5860                                                         break;
5861                                                 }
5862 #endif
5863                                         default:
5864                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5865                                                 error = EINVAL;
5866                                                 goto out_of_it;
5867                                         }
5868                                 }
5869                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5870                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5871                                         error = EINVAL;
5872                                 }
5873                 out_of_it:
5874                                 SCTP_TCB_UNLOCK(stcb);
5875                         } else {
5876                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5877                                 error = EINVAL;
5878                         }
5879                         break;
5880                 }
5881         case SCTP_BINDX_ADD_ADDR:
5882                 {
5883                         struct sctp_getaddresses *addrs;
5884                         struct thread *td;
5885
5886                         td = (struct thread *)p;
5887                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5888                             optsize);
5889 #ifdef INET
5890                         if (addrs->addr->sa_family == AF_INET) {
5891                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5892                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5893                                         error = EINVAL;
5894                                         break;
5895                                 }
5896                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5897                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5898                                         break;
5899                                 }
5900                         } else
5901 #endif
5902 #ifdef INET6
5903                         if (addrs->addr->sa_family == AF_INET6) {
5904                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5905                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5906                                         error = EINVAL;
5907                                         break;
5908                                 }
5909                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5910                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5911                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5912                                         break;
5913                                 }
5914                         } else
5915 #endif
5916                         {
5917                                 error = EAFNOSUPPORT;
5918                                 break;
5919                         }
5920                         sctp_bindx_add_address(so, inp, addrs->addr,
5921                             addrs->sget_assoc_id, vrf_id,
5922                             &error, p);
5923                         break;
5924                 }
5925         case SCTP_BINDX_REM_ADDR:
5926                 {
5927                         struct sctp_getaddresses *addrs;
5928                         struct thread *td;
5929
5930                         td = (struct thread *)p;
5931
5932                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5933 #ifdef INET
5934                         if (addrs->addr->sa_family == AF_INET) {
5935                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5936                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5937                                         error = EINVAL;
5938                                         break;
5939                                 }
5940                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5941                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5942                                         break;
5943                                 }
5944                         } else
5945 #endif
5946 #ifdef INET6
5947                         if (addrs->addr->sa_family == AF_INET6) {
5948                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5949                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5950                                         error = EINVAL;
5951                                         break;
5952                                 }
5953                                 if (td != NULL &&
5954                                     (error = prison_local_ip6(td->td_ucred,
5955                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5956                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5957                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5958                                         break;
5959                                 }
5960                         } else
5961 #endif
5962                         {
5963                                 error = EAFNOSUPPORT;
5964                                 break;
5965                         }
5966                         sctp_bindx_delete_address(inp, addrs->addr,
5967                             addrs->sget_assoc_id, vrf_id,
5968                             &error);
5969                         break;
5970                 }
5971         case SCTP_EVENT:
5972                 {
5973                         struct sctp_event *event;
5974                         uint32_t event_type;
5975
5976                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5977                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5978                         switch (event->se_type) {
5979                         case SCTP_ASSOC_CHANGE:
5980                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5981                                 break;
5982                         case SCTP_PEER_ADDR_CHANGE:
5983                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5984                                 break;
5985                         case SCTP_REMOTE_ERROR:
5986                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5987                                 break;
5988                         case SCTP_SEND_FAILED:
5989                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5990                                 break;
5991                         case SCTP_SHUTDOWN_EVENT:
5992                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5993                                 break;
5994                         case SCTP_ADAPTATION_INDICATION:
5995                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5996                                 break;
5997                         case SCTP_PARTIAL_DELIVERY_EVENT:
5998                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5999                                 break;
6000                         case SCTP_AUTHENTICATION_EVENT:
6001                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
6002                                 break;
6003                         case SCTP_STREAM_RESET_EVENT:
6004                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
6005                                 break;
6006                         case SCTP_SENDER_DRY_EVENT:
6007                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6008                                 break;
6009                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6010                                 event_type = 0;
6011                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6012                                 error = ENOTSUP;
6013                                 break;
6014                         case SCTP_ASSOC_RESET_EVENT:
6015                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6016                                 break;
6017                         case SCTP_STREAM_CHANGE_EVENT:
6018                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6019                                 break;
6020                         case SCTP_SEND_FAILED_EVENT:
6021                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6022                                 break;
6023                         default:
6024                                 event_type = 0;
6025                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6026                                 error = EINVAL;
6027                                 break;
6028                         }
6029                         if (event_type > 0) {
6030                                 if (stcb) {
6031                                         if (event->se_on) {
6032                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6033                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6034                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6035                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6036                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6037                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6038                                                         }
6039                                                 }
6040                                         } else {
6041                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6042                                         }
6043                                         SCTP_TCB_UNLOCK(stcb);
6044                                 } else {
6045                                         /*
6046                                          * We don't want to send up a storm
6047                                          * of events, so return an error for
6048                                          * sender dry events
6049                                          */
6050                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6051                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6052                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6053                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6054                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6055                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6056                                                 error = ENOTSUP;
6057                                                 break;
6058                                         }
6059                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6060                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6061                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6062                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6063                                                 SCTP_INP_WLOCK(inp);
6064                                                 if (event->se_on) {
6065                                                         sctp_feature_on(inp, event_type);
6066                                                 } else {
6067                                                         sctp_feature_off(inp, event_type);
6068                                                 }
6069                                                 SCTP_INP_WUNLOCK(inp);
6070                                         }
6071                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6072                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6073                                                 SCTP_INP_RLOCK(inp);
6074                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6075                                                         SCTP_TCB_LOCK(stcb);
6076                                                         if (event->se_on) {
6077                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6078                                                         } else {
6079                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6080                                                         }
6081                                                         SCTP_TCB_UNLOCK(stcb);
6082                                                 }
6083                                                 SCTP_INP_RUNLOCK(inp);
6084                                         }
6085                                 }
6086                         }
6087                         break;
6088                 }
6089         case SCTP_RECVRCVINFO:
6090                 {
6091                         int *onoff;
6092
6093                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6094                         SCTP_INP_WLOCK(inp);
6095                         if (*onoff != 0) {
6096                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6097                         } else {
6098                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6099                         }
6100                         SCTP_INP_WUNLOCK(inp);
6101                         break;
6102                 }
6103         case SCTP_RECVNXTINFO:
6104                 {
6105                         int *onoff;
6106
6107                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6108                         SCTP_INP_WLOCK(inp);
6109                         if (*onoff != 0) {
6110                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6111                         } else {
6112                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6113                         }
6114                         SCTP_INP_WUNLOCK(inp);
6115                         break;
6116                 }
6117         case SCTP_DEFAULT_SNDINFO:
6118                 {
6119                         struct sctp_sndinfo *info;
6120                         uint16_t policy;
6121
6122                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6123                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6124
6125                         if (stcb) {
6126                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6127                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6128                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6129                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6130                                         stcb->asoc.def_send.sinfo_flags |= policy;
6131                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6132                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6133                                 } else {
6134                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6135                                         error = EINVAL;
6136                                 }
6137                                 SCTP_TCB_UNLOCK(stcb);
6138                         } else {
6139                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6140                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6141                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6142                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6143                                         SCTP_INP_WLOCK(inp);
6144                                         inp->def_send.sinfo_stream = info->snd_sid;
6145                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6146                                         inp->def_send.sinfo_flags = info->snd_flags;
6147                                         inp->def_send.sinfo_flags |= policy;
6148                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6149                                         inp->def_send.sinfo_context = info->snd_context;
6150                                         SCTP_INP_WUNLOCK(inp);
6151                                 }
6152                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6153                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6154                                         SCTP_INP_RLOCK(inp);
6155                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6156                                                 SCTP_TCB_LOCK(stcb);
6157                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6158                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6159                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6160                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6161                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6162                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6163                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6164                                                 }
6165                                                 SCTP_TCB_UNLOCK(stcb);
6166                                         }
6167                                         SCTP_INP_RUNLOCK(inp);
6168                                 }
6169                         }
6170                         break;
6171                 }
6172         case SCTP_DEFAULT_PRINFO:
6173                 {
6174                         struct sctp_default_prinfo *info;
6175
6176                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6177                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6178
6179                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6180                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6181                                 error = EINVAL;
6182                                 break;
6183                         }
6184                         if (stcb) {
6185                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6186                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6187                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6188                                 SCTP_TCB_UNLOCK(stcb);
6189                         } else {
6190                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6191                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6192                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6193                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6194                                         SCTP_INP_WLOCK(inp);
6195                                         inp->def_send.sinfo_flags &= 0xfff0;
6196                                         inp->def_send.sinfo_flags |= info->pr_policy;
6197                                         inp->def_send.sinfo_timetolive = info->pr_value;
6198                                         SCTP_INP_WUNLOCK(inp);
6199                                 }
6200                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6201                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6202                                         SCTP_INP_RLOCK(inp);
6203                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6204                                                 SCTP_TCB_LOCK(stcb);
6205                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6206                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6207                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6208                                                 SCTP_TCB_UNLOCK(stcb);
6209                                         }
6210                                         SCTP_INP_RUNLOCK(inp);
6211                                 }
6212                         }
6213                         break;
6214                 }
6215         case SCTP_PEER_ADDR_THLDS:
6216                 /* Applies to the specific association */
6217                 {
6218                         struct sctp_paddrthlds *thlds;
6219                         struct sctp_nets *net;
6220                         struct sockaddr *addr;
6221
6222 #if defined(INET) && defined(INET6)
6223                         struct sockaddr_in sin_store;
6224
6225 #endif
6226
6227                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6228                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6229
6230 #if defined(INET) && defined(INET6)
6231                         if (thlds->spt_address.ss_family == AF_INET6) {
6232                                 struct sockaddr_in6 *sin6;
6233
6234                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6235                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6236                                         in6_sin6_2_sin(&sin_store, sin6);
6237                                         addr = (struct sockaddr *)&sin_store;
6238                                 } else {
6239                                         addr = (struct sockaddr *)&thlds->spt_address;
6240                                 }
6241                         } else {
6242                                 addr = (struct sockaddr *)&thlds->spt_address;
6243                         }
6244 #else
6245                         addr = (struct sockaddr *)&thlds->spt_address;
6246 #endif
6247                         if (stcb != NULL) {
6248                                 net = sctp_findnet(stcb, addr);
6249                         } else {
6250                                 /*
6251                                  * We increment here since
6252                                  * sctp_findassociation_ep_addr() wil do a
6253                                  * decrement if it finds the stcb as long as
6254                                  * the locked tcb (last argument) is NOT a
6255                                  * TCB.. aka NULL.
6256                                  */
6257                                 net = NULL;
6258                                 SCTP_INP_INCR_REF(inp);
6259                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6260                                     &net, NULL, NULL);
6261                                 if (stcb == NULL) {
6262                                         SCTP_INP_DECR_REF(inp);
6263                                 }
6264                         }
6265                         if ((stcb != NULL) && (net == NULL)) {
6266 #ifdef INET
6267                                 if (addr->sa_family == AF_INET) {
6268
6269                                         struct sockaddr_in *sin;
6270
6271                                         sin = (struct sockaddr_in *)addr;
6272                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6273                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6274                                                 SCTP_TCB_UNLOCK(stcb);
6275                                                 error = EINVAL;
6276                                                 break;
6277                                         }
6278                                 } else
6279 #endif
6280 #ifdef INET6
6281                                 if (addr->sa_family == AF_INET6) {
6282                                         struct sockaddr_in6 *sin6;
6283
6284                                         sin6 = (struct sockaddr_in6 *)addr;
6285                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6286                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6287                                                 SCTP_TCB_UNLOCK(stcb);
6288                                                 error = EINVAL;
6289                                                 break;
6290                                         }
6291                                 } else
6292 #endif
6293                                 {
6294                                         error = EAFNOSUPPORT;
6295                                         SCTP_TCB_UNLOCK(stcb);
6296                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6297                                         break;
6298                                 }
6299                         }
6300                         if (stcb != NULL) {
6301                                 if (net != NULL) {
6302                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6303                                         net->pf_threshold = thlds->spt_pathpfthld;
6304                                         if (net->dest_state & SCTP_ADDR_PF) {
6305                                                 if ((net->error_count > net->failure_threshold) ||
6306                                                     (net->error_count <= net->pf_threshold)) {
6307                                                         net->dest_state &= ~SCTP_ADDR_PF;
6308                                                 }
6309                                         } else {
6310                                                 if ((net->error_count > net->pf_threshold) &&
6311                                                     (net->error_count <= net->failure_threshold)) {
6312                                                         net->dest_state |= SCTP_ADDR_PF;
6313                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6314                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6315                                                             stcb->sctp_ep, stcb, net,
6316                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6317                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6318                                                 }
6319                                         }
6320                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6321                                                 if (net->error_count > net->failure_threshold) {
6322                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6323                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6324                                                 }
6325                                         } else {
6326                                                 if (net->error_count <= net->failure_threshold) {
6327                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6328                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6329                                                 }
6330                                         }
6331                                 } else {
6332                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6333                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6334                                                 net->pf_threshold = thlds->spt_pathpfthld;
6335                                                 if (net->dest_state & SCTP_ADDR_PF) {
6336                                                         if ((net->error_count > net->failure_threshold) ||
6337                                                             (net->error_count <= net->pf_threshold)) {
6338                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6339                                                         }
6340                                                 } else {
6341                                                         if ((net->error_count > net->pf_threshold) &&
6342                                                             (net->error_count <= net->failure_threshold)) {
6343                                                                 net->dest_state |= SCTP_ADDR_PF;
6344                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6345                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6346                                                                     stcb->sctp_ep, stcb, net,
6347                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6348                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6349                                                         }
6350                                                 }
6351                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6352                                                         if (net->error_count > net->failure_threshold) {
6353                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6354                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6355                                                         }
6356                                                 } else {
6357                                                         if (net->error_count <= net->failure_threshold) {
6358                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6359                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6360                                                         }
6361                                                 }
6362                                         }
6363                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6364                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6365                                 }
6366                                 SCTP_TCB_UNLOCK(stcb);
6367                         } else {
6368                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6369                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6370                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6371                                         SCTP_INP_WLOCK(inp);
6372                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6373                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6374                                         SCTP_INP_WUNLOCK(inp);
6375                                 } else {
6376                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6377                                         error = EINVAL;
6378                                 }
6379                         }
6380                         break;
6381                 }
6382         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6383                 {
6384                         struct sctp_udpencaps *encaps;
6385                         struct sctp_nets *net;
6386                         struct sockaddr *addr;
6387
6388 #if defined(INET) && defined(INET6)
6389                         struct sockaddr_in sin_store;
6390
6391 #endif
6392
6393                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6394                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6395
6396 #if defined(INET) && defined(INET6)
6397                         if (encaps->sue_address.ss_family == AF_INET6) {
6398                                 struct sockaddr_in6 *sin6;
6399
6400                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6401                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6402                                         in6_sin6_2_sin(&sin_store, sin6);
6403                                         addr = (struct sockaddr *)&sin_store;
6404                                 } else {
6405                                         addr = (struct sockaddr *)&encaps->sue_address;
6406                                 }
6407                         } else {
6408                                 addr = (struct sockaddr *)&encaps->sue_address;
6409                         }
6410 #else
6411                         addr = (struct sockaddr *)&encaps->sue_address;
6412 #endif
6413                         if (stcb != NULL) {
6414                                 net = sctp_findnet(stcb, addr);
6415                         } else {
6416                                 /*
6417                                  * We increment here since
6418                                  * sctp_findassociation_ep_addr() wil do a
6419                                  * decrement if it finds the stcb as long as
6420                                  * the locked tcb (last argument) is NOT a
6421                                  * TCB.. aka NULL.
6422                                  */
6423                                 net = NULL;
6424                                 SCTP_INP_INCR_REF(inp);
6425                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6426                                 if (stcb == NULL) {
6427                                         SCTP_INP_DECR_REF(inp);
6428                                 }
6429                         }
6430                         if ((stcb != NULL) && (net == NULL)) {
6431 #ifdef INET
6432                                 if (addr->sa_family == AF_INET) {
6433
6434                                         struct sockaddr_in *sin;
6435
6436                                         sin = (struct sockaddr_in *)addr;
6437                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6438                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6439                                                 SCTP_TCB_UNLOCK(stcb);
6440                                                 error = EINVAL;
6441                                                 break;
6442                                         }
6443                                 } else
6444 #endif
6445 #ifdef INET6
6446                                 if (addr->sa_family == AF_INET6) {
6447                                         struct sockaddr_in6 *sin6;
6448
6449                                         sin6 = (struct sockaddr_in6 *)addr;
6450                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6451                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6452                                                 SCTP_TCB_UNLOCK(stcb);
6453                                                 error = EINVAL;
6454                                                 break;
6455                                         }
6456                                 } else
6457 #endif
6458                                 {
6459                                         error = EAFNOSUPPORT;
6460                                         SCTP_TCB_UNLOCK(stcb);
6461                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6462                                         break;
6463                                 }
6464                         }
6465                         if (stcb != NULL) {
6466                                 if (net != NULL) {
6467                                         net->port = encaps->sue_port;
6468                                 } else {
6469                                         stcb->asoc.port = encaps->sue_port;
6470                                 }
6471                                 SCTP_TCB_UNLOCK(stcb);
6472                         } else {
6473                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6474                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6475                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6476                                         SCTP_INP_WLOCK(inp);
6477                                         inp->sctp_ep.port = encaps->sue_port;
6478                                         SCTP_INP_WUNLOCK(inp);
6479                                 } else {
6480                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6481                                         error = EINVAL;
6482                                 }
6483                         }
6484                         break;
6485                 }
6486         case SCTP_ECN_SUPPORTED:
6487                 {
6488                         struct sctp_assoc_value *av;
6489
6490                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6491                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6492
6493                         if (stcb) {
6494                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6495                                 error = EINVAL;
6496                                 SCTP_TCB_UNLOCK(stcb);
6497                         } else {
6498                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6499                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6500                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6501                                         SCTP_INP_WLOCK(inp);
6502                                         if (av->assoc_value == 0) {
6503                                                 inp->ecn_supported = 0;
6504                                         } else {
6505                                                 inp->ecn_supported = 1;
6506                                         }
6507                                         SCTP_INP_WUNLOCK(inp);
6508                                 } else {
6509                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6510                                         error = EINVAL;
6511                                 }
6512                         }
6513                         break;
6514                 }
6515         case SCTP_PR_SUPPORTED:
6516                 {
6517                         struct sctp_assoc_value *av;
6518
6519                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6520                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6521
6522                         if (stcb) {
6523                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6524                                 error = EINVAL;
6525                                 SCTP_TCB_UNLOCK(stcb);
6526                         } else {
6527                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6528                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6529                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6530                                         SCTP_INP_WLOCK(inp);
6531                                         if (av->assoc_value == 0) {
6532                                                 inp->prsctp_supported = 0;
6533                                         } else {
6534                                                 inp->prsctp_supported = 1;
6535                                         }
6536                                         SCTP_INP_WUNLOCK(inp);
6537                                 } else {
6538                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6539                                         error = EINVAL;
6540                                 }
6541                         }
6542                         break;
6543                 }
6544         case SCTP_AUTH_SUPPORTED:
6545                 {
6546                         struct sctp_assoc_value *av;
6547
6548                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6549                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6550
6551                         if (stcb) {
6552                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6553                                 error = EINVAL;
6554                                 SCTP_TCB_UNLOCK(stcb);
6555                         } else {
6556                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6557                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6558                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6559                                         if ((av->assoc_value == 0) &&
6560                                             (inp->asconf_supported == 1)) {
6561                                                 /*
6562                                                  * AUTH is required for
6563                                                  * ASCONF
6564                                                  */
6565                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6566                                                 error = EINVAL;
6567                                         } else {
6568                                                 SCTP_INP_WLOCK(inp);
6569                                                 if (av->assoc_value == 0) {
6570                                                         inp->auth_supported = 0;
6571                                                 } else {
6572                                                         inp->auth_supported = 1;
6573                                                 }
6574                                                 SCTP_INP_WUNLOCK(inp);
6575                                         }
6576                                 } else {
6577                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6578                                         error = EINVAL;
6579                                 }
6580                         }
6581                         break;
6582                 }
6583         case SCTP_ASCONF_SUPPORTED:
6584                 {
6585                         struct sctp_assoc_value *av;
6586
6587                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6588                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6589
6590                         if (stcb) {
6591                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6592                                 error = EINVAL;
6593                                 SCTP_TCB_UNLOCK(stcb);
6594                         } else {
6595                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6596                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6597                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6598                                         if ((av->assoc_value != 0) &&
6599                                             (inp->auth_supported == 0)) {
6600                                                 /*
6601                                                  * AUTH is required for
6602                                                  * ASCONF
6603                                                  */
6604                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6605                                                 error = EINVAL;
6606                                         } else {
6607                                                 SCTP_INP_WLOCK(inp);
6608                                                 if (av->assoc_value == 0) {
6609                                                         inp->asconf_supported = 0;
6610                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6611                                                             inp->sctp_ep.local_auth_chunks);
6612                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6613                                                             inp->sctp_ep.local_auth_chunks);
6614                                                 } else {
6615                                                         inp->asconf_supported = 1;
6616                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6617                                                             inp->sctp_ep.local_auth_chunks);
6618                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6619                                                             inp->sctp_ep.local_auth_chunks);
6620                                                 }
6621                                                 SCTP_INP_WUNLOCK(inp);
6622                                         }
6623                                 } else {
6624                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6625                                         error = EINVAL;
6626                                 }
6627                         }
6628                         break;
6629                 }
6630         case SCTP_RECONFIG_SUPPORTED:
6631                 {
6632                         struct sctp_assoc_value *av;
6633
6634                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6635                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6636
6637                         if (stcb) {
6638                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6639                                 error = EINVAL;
6640                                 SCTP_TCB_UNLOCK(stcb);
6641                         } else {
6642                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6643                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6644                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6645                                         SCTP_INP_WLOCK(inp);
6646                                         if (av->assoc_value == 0) {
6647                                                 inp->reconfig_supported = 0;
6648                                         } else {
6649                                                 inp->reconfig_supported = 1;
6650                                         }
6651                                         SCTP_INP_WUNLOCK(inp);
6652                                 } else {
6653                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6654                                         error = EINVAL;
6655                                 }
6656                         }
6657                         break;
6658                 }
6659         case SCTP_NRSACK_SUPPORTED:
6660                 {
6661                         struct sctp_assoc_value *av;
6662
6663                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6664                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6665
6666                         if (stcb) {
6667                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6668                                 error = EINVAL;
6669                                 SCTP_TCB_UNLOCK(stcb);
6670                         } else {
6671                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6672                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6673                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6674                                         SCTP_INP_WLOCK(inp);
6675                                         if (av->assoc_value == 0) {
6676                                                 inp->nrsack_supported = 0;
6677                                         } else {
6678                                                 inp->nrsack_supported = 1;
6679                                         }
6680                                         SCTP_INP_WUNLOCK(inp);
6681                                 } else {
6682                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6683                                         error = EINVAL;
6684                                 }
6685                         }
6686                         break;
6687                 }
6688         case SCTP_PKTDROP_SUPPORTED:
6689                 {
6690                         struct sctp_assoc_value *av;
6691
6692                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6693                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6694
6695                         if (stcb) {
6696                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6697                                 error = EINVAL;
6698                                 SCTP_TCB_UNLOCK(stcb);
6699                         } else {
6700                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6701                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6702                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6703                                         SCTP_INP_WLOCK(inp);
6704                                         if (av->assoc_value == 0) {
6705                                                 inp->pktdrop_supported = 0;
6706                                         } else {
6707                                                 inp->pktdrop_supported = 1;
6708                                         }
6709                                         SCTP_INP_WUNLOCK(inp);
6710                                 } else {
6711                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6712                                         error = EINVAL;
6713                                 }
6714                         }
6715                         break;
6716                 }
6717         case SCTP_MAX_CWND:
6718                 {
6719                         struct sctp_assoc_value *av;
6720                         struct sctp_nets *net;
6721
6722                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6723                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6724
6725                         if (stcb) {
6726                                 stcb->asoc.max_cwnd = av->assoc_value;
6727                                 if (stcb->asoc.max_cwnd > 0) {
6728                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6729                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6730                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6731                                                         net->cwnd = stcb->asoc.max_cwnd;
6732                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6733                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6734                                                         }
6735                                                 }
6736                                         }
6737                                 }
6738                                 SCTP_TCB_UNLOCK(stcb);
6739                         } else {
6740                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6741                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6742                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6743                                         SCTP_INP_WLOCK(inp);
6744                                         inp->max_cwnd = av->assoc_value;
6745                                         SCTP_INP_WUNLOCK(inp);
6746                                 } else {
6747                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6748                                         error = EINVAL;
6749                                 }
6750                         }
6751                         break;
6752                 }
6753         default:
6754                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6755                 error = ENOPROTOOPT;
6756                 break;
6757         }                       /* end switch (opt) */
6758         return (error);
6759 }
6760
6761 int
6762 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6763 {
6764         void *optval = NULL;
6765         size_t optsize = 0;
6766         void *p;
6767         int error = 0;
6768         struct sctp_inpcb *inp;
6769
6770         if ((sopt->sopt_level == SOL_SOCKET) &&
6771             (sopt->sopt_name == SO_SETFIB)) {
6772                 inp = (struct sctp_inpcb *)so->so_pcb;
6773                 if (inp == NULL) {
6774                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6775                         return (EINVAL);
6776                 }
6777                 SCTP_INP_WLOCK(inp);
6778                 inp->fibnum = so->so_fibnum;
6779                 SCTP_INP_WUNLOCK(inp);
6780                 return (0);
6781         }
6782         if (sopt->sopt_level != IPPROTO_SCTP) {
6783                 /* wrong proto level... send back up to IP */
6784 #ifdef INET6
6785                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6786                         error = ip6_ctloutput(so, sopt);
6787 #endif                          /* INET6 */
6788 #if defined(INET) && defined(INET6)
6789                 else
6790 #endif
6791 #ifdef INET
6792                         error = ip_ctloutput(so, sopt);
6793 #endif
6794                 return (error);
6795         }
6796         optsize = sopt->sopt_valsize;
6797         if (optsize) {
6798                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6799                 if (optval == NULL) {
6800                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6801                         return (ENOBUFS);
6802                 }
6803                 error = sooptcopyin(sopt, optval, optsize, optsize);
6804                 if (error) {
6805                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6806                         goto out;
6807                 }
6808         }
6809         p = (void *)sopt->sopt_td;
6810         if (sopt->sopt_dir == SOPT_SET) {
6811                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6812         } else if (sopt->sopt_dir == SOPT_GET) {
6813                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6814         } else {
6815                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6816                 error = EINVAL;
6817         }
6818         if ((error == 0) && (optval != NULL)) {
6819                 error = sooptcopyout(sopt, optval, optsize);
6820                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6821         } else if (optval != NULL) {
6822                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6823         }
6824 out:
6825         return (error);
6826 }
6827
6828 #ifdef INET
6829 static int
6830 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6831 {
6832         int error = 0;
6833         int create_lock_on = 0;
6834         uint32_t vrf_id;
6835         struct sctp_inpcb *inp;
6836         struct sctp_tcb *stcb = NULL;
6837
6838         inp = (struct sctp_inpcb *)so->so_pcb;
6839         if (inp == NULL) {
6840                 /* I made the same as TCP since we are not setup? */
6841                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6842                 return (ECONNRESET);
6843         }
6844         if (addr == NULL) {
6845                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6846                 return EINVAL;
6847         }
6848         switch (addr->sa_family) {
6849 #ifdef INET6
6850         case AF_INET6:
6851                 {
6852                         struct sockaddr_in6 *sin6p;
6853
6854                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6856                                 return (EINVAL);
6857                         }
6858                         sin6p = (struct sockaddr_in6 *)addr;
6859                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6860                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6861                                 return (error);
6862                         }
6863                         break;
6864                 }
6865 #endif
6866 #ifdef INET
6867         case AF_INET:
6868                 {
6869                         struct sockaddr_in *sinp;
6870
6871                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6872                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6873                                 return (EINVAL);
6874                         }
6875                         sinp = (struct sockaddr_in *)addr;
6876                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6877                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6878                                 return (error);
6879                         }
6880                         break;
6881                 }
6882 #endif
6883         default:
6884                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6885                 return (EAFNOSUPPORT);
6886         }
6887         SCTP_INP_INCR_REF(inp);
6888         SCTP_ASOC_CREATE_LOCK(inp);
6889         create_lock_on = 1;
6890
6891
6892         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6893             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6894                 /* Should I really unlock ? */
6895                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6896                 error = EFAULT;
6897                 goto out_now;
6898         }
6899 #ifdef INET6
6900         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6901             (addr->sa_family == AF_INET6)) {
6902                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6903                 error = EINVAL;
6904                 goto out_now;
6905         }
6906 #endif
6907         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6908             SCTP_PCB_FLAGS_UNBOUND) {
6909                 /* Bind a ephemeral port */
6910                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6911                 if (error) {
6912                         goto out_now;
6913                 }
6914         }
6915         /* Now do we connect? */
6916         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6917             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6918                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6919                 error = EINVAL;
6920                 goto out_now;
6921         }
6922         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6923             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6924                 /* We are already connected AND the TCP model */
6925                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6926                 error = EADDRINUSE;
6927                 goto out_now;
6928         }
6929         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6930                 SCTP_INP_RLOCK(inp);
6931                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6932                 SCTP_INP_RUNLOCK(inp);
6933         } else {
6934                 /*
6935                  * We increment here since sctp_findassociation_ep_addr()
6936                  * will do a decrement if it finds the stcb as long as the
6937                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6938                  */
6939                 SCTP_INP_INCR_REF(inp);
6940                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6941                 if (stcb == NULL) {
6942                         SCTP_INP_DECR_REF(inp);
6943                 } else {
6944                         SCTP_TCB_UNLOCK(stcb);
6945                 }
6946         }
6947         if (stcb != NULL) {
6948                 /* Already have or am bring up an association */
6949                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6950                 error = EALREADY;
6951                 goto out_now;
6952         }
6953         vrf_id = inp->def_vrf_id;
6954         /* We are GOOD to go */
6955         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, p);
6956         if (stcb == NULL) {
6957                 /* Gak! no memory */
6958                 goto out_now;
6959         }
6960         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6961                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6962                 /* Set the connected flag so we can queue data */
6963                 soisconnecting(so);
6964         }
6965         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6966         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6967
6968         /* initialize authentication parameters for the assoc */
6969         sctp_initialize_auth_params(inp, stcb);
6970
6971         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6972         SCTP_TCB_UNLOCK(stcb);
6973 out_now:
6974         if (create_lock_on) {
6975                 SCTP_ASOC_CREATE_UNLOCK(inp);
6976         }
6977         SCTP_INP_DECR_REF(inp);
6978         return (error);
6979 }
6980
6981 #endif
6982
6983 int
6984 sctp_listen(struct socket *so, int backlog, struct thread *p)
6985 {
6986         /*
6987          * Note this module depends on the protocol processing being called
6988          * AFTER any socket level flags and backlog are applied to the
6989          * socket. The traditional way that the socket flags are applied is
6990          * AFTER protocol processing. We have made a change to the
6991          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6992          * place if the socket API for SCTP is to work properly.
6993          */
6994
6995         int error = 0;
6996         struct sctp_inpcb *inp;
6997
6998         inp = (struct sctp_inpcb *)so->so_pcb;
6999         if (inp == NULL) {
7000                 /* I made the same as TCP since we are not setup? */
7001                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7002                 return (ECONNRESET);
7003         }
7004         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
7005                 /* See if we have a listener */
7006                 struct sctp_inpcb *tinp;
7007                 union sctp_sockstore store;
7008
7009                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7010                         /* not bound all */
7011                         struct sctp_laddr *laddr;
7012
7013                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7014                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7015                                 switch (store.sa.sa_family) {
7016 #ifdef INET
7017                                 case AF_INET:
7018                                         store.sin.sin_port = inp->sctp_lport;
7019                                         break;
7020 #endif
7021 #ifdef INET6
7022                                 case AF_INET6:
7023                                         store.sin6.sin6_port = inp->sctp_lport;
7024                                         break;
7025 #endif
7026                                 default:
7027                                         break;
7028                                 }
7029                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7030                                 if (tinp && (tinp != inp) &&
7031                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7032                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7033                                     (tinp->sctp_socket->so_qlimit)) {
7034                                         /*
7035                                          * we have a listener already and
7036                                          * its not this inp.
7037                                          */
7038                                         SCTP_INP_DECR_REF(tinp);
7039                                         return (EADDRINUSE);
7040                                 } else if (tinp) {
7041                                         SCTP_INP_DECR_REF(tinp);
7042                                 }
7043                         }
7044                 } else {
7045                         /* Setup a local addr bound all */
7046                         memset(&store, 0, sizeof(store));
7047 #ifdef INET6
7048                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7049                                 store.sa.sa_family = AF_INET6;
7050                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7051                         }
7052 #endif
7053 #ifdef INET
7054                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7055                                 store.sa.sa_family = AF_INET;
7056                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7057                         }
7058 #endif
7059                         switch (store.sa.sa_family) {
7060 #ifdef INET
7061                         case AF_INET:
7062                                 store.sin.sin_port = inp->sctp_lport;
7063                                 break;
7064 #endif
7065 #ifdef INET6
7066                         case AF_INET6:
7067                                 store.sin6.sin6_port = inp->sctp_lport;
7068                                 break;
7069 #endif
7070                         default:
7071                                 break;
7072                         }
7073                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7074                         if (tinp && (tinp != inp) &&
7075                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7076                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7077                             (tinp->sctp_socket->so_qlimit)) {
7078                                 /*
7079                                  * we have a listener already and its not
7080                                  * this inp.
7081                                  */
7082                                 SCTP_INP_DECR_REF(tinp);
7083                                 return (EADDRINUSE);
7084                         } else if (tinp) {
7085                                 SCTP_INP_DECR_REF(tinp);
7086                         }
7087                 }
7088         }
7089         SCTP_INP_RLOCK(inp);
7090 #ifdef SCTP_LOCK_LOGGING
7091         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7092                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7093         }
7094 #endif
7095         SOCK_LOCK(so);
7096         error = solisten_proto_check(so);
7097         SOCK_UNLOCK(so);
7098         if (error) {
7099                 SCTP_INP_RUNLOCK(inp);
7100                 return (error);
7101         }
7102         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7103             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7104                 /*
7105                  * The unlucky case - We are in the tcp pool with this guy.
7106                  * - Someone else is in the main inp slot. - We must move
7107                  * this guy (the listener) to the main slot - We must then
7108                  * move the guy that was listener to the TCP Pool.
7109                  */
7110                 if (sctp_swap_inpcb_for_listen(inp)) {
7111                         SCTP_INP_RUNLOCK(inp);
7112                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7113                         return (EADDRINUSE);
7114                 }
7115         }
7116         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7117             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7118                 /* We are already connected AND the TCP model */
7119                 SCTP_INP_RUNLOCK(inp);
7120                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7121                 return (EADDRINUSE);
7122         }
7123         SCTP_INP_RUNLOCK(inp);
7124         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7125                 /* We must do a bind. */
7126                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7127                         /* bind error, probably perm */
7128                         return (error);
7129                 }
7130         }
7131         SOCK_LOCK(so);
7132         /* It appears for 7.0 and on, we must always call this. */
7133         solisten_proto(so, backlog);
7134         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7135                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7136                 so->so_options &= ~SO_ACCEPTCONN;
7137         }
7138         if (backlog == 0) {
7139                 /* turning off listen */
7140                 so->so_options &= ~SO_ACCEPTCONN;
7141         }
7142         SOCK_UNLOCK(so);
7143         return (error);
7144 }
7145
7146 static int sctp_defered_wakeup_cnt = 0;
7147
7148 int
7149 sctp_accept(struct socket *so, struct sockaddr **addr)
7150 {
7151         struct sctp_tcb *stcb;
7152         struct sctp_inpcb *inp;
7153         union sctp_sockstore store;
7154
7155 #ifdef INET6
7156         int error;
7157
7158 #endif
7159         inp = (struct sctp_inpcb *)so->so_pcb;
7160
7161         if (inp == NULL) {
7162                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7163                 return (ECONNRESET);
7164         }
7165         SCTP_INP_RLOCK(inp);
7166         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7167                 SCTP_INP_RUNLOCK(inp);
7168                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7169                 return (EOPNOTSUPP);
7170         }
7171         if (so->so_state & SS_ISDISCONNECTED) {
7172                 SCTP_INP_RUNLOCK(inp);
7173                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7174                 return (ECONNABORTED);
7175         }
7176         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7177         if (stcb == NULL) {
7178                 SCTP_INP_RUNLOCK(inp);
7179                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7180                 return (ECONNRESET);
7181         }
7182         SCTP_TCB_LOCK(stcb);
7183         SCTP_INP_RUNLOCK(inp);
7184         store = stcb->asoc.primary_destination->ro._l_addr;
7185         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7186         SCTP_TCB_UNLOCK(stcb);
7187         switch (store.sa.sa_family) {
7188 #ifdef INET
7189         case AF_INET:
7190                 {
7191                         struct sockaddr_in *sin;
7192
7193                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7194                         if (sin == NULL)
7195                                 return (ENOMEM);
7196                         sin->sin_family = AF_INET;
7197                         sin->sin_len = sizeof(*sin);
7198                         sin->sin_port = store.sin.sin_port;
7199                         sin->sin_addr = store.sin.sin_addr;
7200                         *addr = (struct sockaddr *)sin;
7201                         break;
7202                 }
7203 #endif
7204 #ifdef INET6
7205         case AF_INET6:
7206                 {
7207                         struct sockaddr_in6 *sin6;
7208
7209                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7210                         if (sin6 == NULL)
7211                                 return (ENOMEM);
7212                         sin6->sin6_family = AF_INET6;
7213                         sin6->sin6_len = sizeof(*sin6);
7214                         sin6->sin6_port = store.sin6.sin6_port;
7215                         sin6->sin6_addr = store.sin6.sin6_addr;
7216                         if ((error = sa6_recoverscope(sin6)) != 0) {
7217                                 SCTP_FREE_SONAME(sin6);
7218                                 return (error);
7219                         }
7220                         *addr = (struct sockaddr *)sin6;
7221                         break;
7222                 }
7223 #endif
7224         default:
7225                 /* TSNH */
7226                 break;
7227         }
7228         /* Wake any delayed sleep action */
7229         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7230                 SCTP_INP_WLOCK(inp);
7231                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7232                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7233                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7234                         SCTP_INP_WUNLOCK(inp);
7235                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7236                         if (sowriteable(inp->sctp_socket)) {
7237                                 sowwakeup_locked(inp->sctp_socket);
7238                         } else {
7239                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7240                         }
7241                         SCTP_INP_WLOCK(inp);
7242                 }
7243                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7244                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7245                         SCTP_INP_WUNLOCK(inp);
7246                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7247                         if (soreadable(inp->sctp_socket)) {
7248                                 sctp_defered_wakeup_cnt++;
7249                                 sorwakeup_locked(inp->sctp_socket);
7250                         } else {
7251                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7252                         }
7253                         SCTP_INP_WLOCK(inp);
7254                 }
7255                 SCTP_INP_WUNLOCK(inp);
7256         }
7257         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7258                 SCTP_TCB_LOCK(stcb);
7259                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7260                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7261         }
7262         return (0);
7263 }
7264
7265 #ifdef INET
7266 int
7267 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7268 {
7269         struct sockaddr_in *sin;
7270         uint32_t vrf_id;
7271         struct sctp_inpcb *inp;
7272         struct sctp_ifa *sctp_ifa;
7273
7274         /*
7275          * Do the malloc first in case it blocks.
7276          */
7277         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7278         if (sin == NULL)
7279                 return (ENOMEM);
7280         sin->sin_family = AF_INET;
7281         sin->sin_len = sizeof(*sin);
7282         inp = (struct sctp_inpcb *)so->so_pcb;
7283         if (!inp) {
7284                 SCTP_FREE_SONAME(sin);
7285                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7286                 return (ECONNRESET);
7287         }
7288         SCTP_INP_RLOCK(inp);
7289         sin->sin_port = inp->sctp_lport;
7290         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7291                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7292                         struct sctp_tcb *stcb;
7293                         struct sockaddr_in *sin_a;
7294                         struct sctp_nets *net;
7295                         int fnd;
7296
7297                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7298                         if (stcb == NULL) {
7299                                 goto notConn;
7300                         }
7301                         fnd = 0;
7302                         sin_a = NULL;
7303                         SCTP_TCB_LOCK(stcb);
7304                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7305                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7306                                 if (sin_a == NULL)
7307                                         /* this will make coverity happy */
7308                                         continue;
7309
7310                                 if (sin_a->sin_family == AF_INET) {
7311                                         fnd = 1;
7312                                         break;
7313                                 }
7314                         }
7315                         if ((!fnd) || (sin_a == NULL)) {
7316                                 /* punt */
7317                                 SCTP_TCB_UNLOCK(stcb);
7318                                 goto notConn;
7319                         }
7320                         vrf_id = inp->def_vrf_id;
7321                         sctp_ifa = sctp_source_address_selection(inp,
7322                             stcb,
7323                             (sctp_route_t *) & net->ro,
7324                             net, 0, vrf_id);
7325                         if (sctp_ifa) {
7326                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7327                                 sctp_free_ifa(sctp_ifa);
7328                         }
7329                         SCTP_TCB_UNLOCK(stcb);
7330                 } else {
7331                         /* For the bound all case you get back 0 */
7332         notConn:
7333                         sin->sin_addr.s_addr = 0;
7334                 }
7335
7336         } else {
7337                 /* Take the first IPv4 address in the list */
7338                 struct sctp_laddr *laddr;
7339                 int fnd = 0;
7340
7341                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7342                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7343                                 struct sockaddr_in *sin_a;
7344
7345                                 sin_a = &laddr->ifa->address.sin;
7346                                 sin->sin_addr = sin_a->sin_addr;
7347                                 fnd = 1;
7348                                 break;
7349                         }
7350                 }
7351                 if (!fnd) {
7352                         SCTP_FREE_SONAME(sin);
7353                         SCTP_INP_RUNLOCK(inp);
7354                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7355                         return (ENOENT);
7356                 }
7357         }
7358         SCTP_INP_RUNLOCK(inp);
7359         (*addr) = (struct sockaddr *)sin;
7360         return (0);
7361 }
7362
7363 int
7364 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7365 {
7366         struct sockaddr_in *sin;
7367         int fnd;
7368         struct sockaddr_in *sin_a;
7369         struct sctp_inpcb *inp;
7370         struct sctp_tcb *stcb;
7371         struct sctp_nets *net;
7372
7373         /* Do the malloc first in case it blocks. */
7374         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7375         if (sin == NULL)
7376                 return (ENOMEM);
7377         sin->sin_family = AF_INET;
7378         sin->sin_len = sizeof(*sin);
7379
7380         inp = (struct sctp_inpcb *)so->so_pcb;
7381         if ((inp == NULL) ||
7382             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7383                 /* UDP type and listeners will drop out here */
7384                 SCTP_FREE_SONAME(sin);
7385                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7386                 return (ENOTCONN);
7387         }
7388         SCTP_INP_RLOCK(inp);
7389         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7390         if (stcb) {
7391                 SCTP_TCB_LOCK(stcb);
7392         }
7393         SCTP_INP_RUNLOCK(inp);
7394         if (stcb == NULL) {
7395                 SCTP_FREE_SONAME(sin);
7396                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7397                 return (ECONNRESET);
7398         }
7399         fnd = 0;
7400         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7401                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7402                 if (sin_a->sin_family == AF_INET) {
7403                         fnd = 1;
7404                         sin->sin_port = stcb->rport;
7405                         sin->sin_addr = sin_a->sin_addr;
7406                         break;
7407                 }
7408         }
7409         SCTP_TCB_UNLOCK(stcb);
7410         if (!fnd) {
7411                 /* No IPv4 address */
7412                 SCTP_FREE_SONAME(sin);
7413                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7414                 return (ENOENT);
7415         }
7416         (*addr) = (struct sockaddr *)sin;
7417         return (0);
7418 }
7419
7420 struct pr_usrreqs sctp_usrreqs = {
7421         .pru_abort = sctp_abort,
7422         .pru_accept = sctp_accept,
7423         .pru_attach = sctp_attach,
7424         .pru_bind = sctp_bind,
7425         .pru_connect = sctp_connect,
7426         .pru_control = in_control,
7427         .pru_close = sctp_close,
7428         .pru_detach = sctp_close,
7429         .pru_sopoll = sopoll_generic,
7430         .pru_flush = sctp_flush,
7431         .pru_disconnect = sctp_disconnect,
7432         .pru_listen = sctp_listen,
7433         .pru_peeraddr = sctp_peeraddr,
7434         .pru_send = sctp_sendm,
7435         .pru_shutdown = sctp_shutdown,
7436         .pru_sockaddr = sctp_ingetaddr,
7437         .pru_sosend = sctp_sosend,
7438         .pru_soreceive = sctp_soreceive
7439 };
7440
7441 #endif