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         inp = (struct sctp_inpcb *)so->so_pcb;
 491         if (inp != 0) {
 492                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 493                 return (EINVAL);
 494         }
 495         if (so->so_snd.sb_hiwat == 0 || so->so_rcv.sb_hiwat == 0) {
 496                 error = SCTP_SORESERVE(so, SCTP_BASE_SYSCTL(sctp_sendspace), SCTP_BASE_SYSCTL(sctp_recvspace));
 497                 if (error) {
 498                         return (error);
 499                 }
 500         }
 501         error = sctp_inpcb_alloc(so, vrf_id);
 502         if (error) {
 503                 return (error);
 504         }
 505         inp = (struct sctp_inpcb *)so->so_pcb;
 506         SCTP_INP_WLOCK(inp);
 507         inp->sctp_flags &= ~SCTP_PCB_FLAGS_BOUND_V6;    /* I'm not v6! */
 508         ip_inp = &inp->ip_inp.inp;
 509         ip_inp->inp_vflag |= INP_IPV4;
 510         ip_inp->inp_ip_ttl = MODULE_GLOBAL(ip_defttl);
 511         SCTP_INP_WUNLOCK(inp);
 512         return (0);
 513 }
 514
 515 static int
 516 sctp_bind(struct socket *so, struct sockaddr *addr, struct thread *p)
 517 {
 518         struct sctp_inpcb *inp;
 519
 520         inp = (struct sctp_inpcb *)so->so_pcb;
 521         if (inp == NULL) {
 522                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 523                 return (EINVAL);
 524         }
 525         if (addr != NULL) {
 526                 if ((addr->sa_family != AF_INET) ||
 527                     (addr->sa_len != sizeof(struct sockaddr_in))) {
 528                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 529                         return (EINVAL);
 530                 }
 531         }
 532         return (sctp_inpcb_bind(so, addr, NULL, p));
 533 }
 534
 535 #endif
 536 void
 537 sctp_close(struct socket *so)
 538 {
 539         struct sctp_inpcb *inp;
 540         uint32_t flags;
 541
 542         inp = (struct sctp_inpcb *)so->so_pcb;
 543         if (inp == NULL)
 544                 return;
 545
 546         /*
 547          * Inform all the lower layer assoc that we are done.
 548          */
 549 sctp_must_try_again:
 550         flags = inp->sctp_flags;
 551 #ifdef SCTP_LOG_CLOSING
 552         sctp_log_closing(inp, NULL, 17);
 553 #endif
 554         if (((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
 555             (atomic_cmpset_int(&inp->sctp_flags, flags, (flags | SCTP_PCB_FLAGS_SOCKET_GONE | SCTP_PCB_FLAGS_CLOSE_IP)))) {
 556                 if (((so->so_options & SO_LINGER) && (so->so_linger == 0)) ||
 557                     (so->so_rcv.sb_cc > 0)) {
 558 #ifdef SCTP_LOG_CLOSING
 559                         sctp_log_closing(inp, NULL, 13);
 560 #endif
 561                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT,
 562                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 563                 } else {
 564 #ifdef SCTP_LOG_CLOSING
 565                         sctp_log_closing(inp, NULL, 14);
 566 #endif
 567                         sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_GRACEFUL_CLOSE,
 568                             SCTP_CALLED_AFTER_CMPSET_OFCLOSE);
 569                 }
 570                 /*
 571                  * The socket is now detached, no matter what the state of
 572                  * the SCTP association.
 573                  */
 574                 SOCK_LOCK(so);
 575                 SCTP_SB_CLEAR(so->so_snd);
 576                 /*
 577                  * same for the rcv ones, they are only here for the
 578                  * accounting/select.
 579                  */
 580                 SCTP_SB_CLEAR(so->so_rcv);
 581
 582                 /* Now null out the reference, we are completely detached. */
 583                 so->so_pcb = NULL;
 584                 SOCK_UNLOCK(so);
 585         } else {
 586                 flags = inp->sctp_flags;
 587                 if ((flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) {
 588                         goto sctp_must_try_again;
 589                 }
 590         }
 591         return;
 592 }
 593
 594
 595 int
 596 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 597     struct mbuf *control, struct thread *p);
 598
 599
 600 int
 601 sctp_sendm(struct socket *so, int flags, struct mbuf *m, struct sockaddr *addr,
 602     struct mbuf *control, struct thread *p)
 603 {
 604         struct sctp_inpcb *inp;
 605         int error;
 606
 607         inp = (struct sctp_inpcb *)so->so_pcb;
 608         if (inp == NULL) {
 609                 if (control) {
 610                         sctp_m_freem(control);
 611                         control = NULL;
 612                 }
 613                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 614                 sctp_m_freem(m);
 615                 return (EINVAL);
 616         }
 617         /* Got to have an to address if we are NOT a connected socket */
 618         if ((addr == NULL) &&
 619             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) ||
 620             (inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE))) {
 621                 goto connected_type;
 622         } else if (addr == NULL) {
 623                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 624                 error = EDESTADDRREQ;
 625                 sctp_m_freem(m);
 626                 if (control) {
 627                         sctp_m_freem(control);
 628                         control = NULL;
 629                 }
 630                 return (error);
 631         }
 632 #ifdef INET6
 633         if (addr->sa_family != AF_INET) {
 634                 /* must be a v4 address! */
 635                 SCTP_LTRACE_ERR_RET_PKT(m, inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EDESTADDRREQ);
 636                 sctp_m_freem(m);
 637                 if (control) {
 638                         sctp_m_freem(control);
 639                         control = NULL;
 640                 }
 641                 error = EDESTADDRREQ;
 642                 return (error);
 643         }
 644 #endif                          /* INET6 */
 645 connected_type:
 646         /* now what about control */
 647         if (control) {
 648                 if (inp->control) {
 649                         SCTP_PRINTF("huh? control set?\n");
 650                         sctp_m_freem(inp->control);
 651                         inp->control = NULL;
 652                 }
 653                 inp->control = control;
 654         }
 655         /* Place the data */
 656         if (inp->pkt) {
 657                 SCTP_BUF_NEXT(inp->pkt_last) = m;
 658                 inp->pkt_last = m;
 659         } else {
 660                 inp->pkt_last = inp->pkt = m;
 661         }
 662         if (
 663         /* FreeBSD uses a flag passed */
 664             ((flags & PRUS_MORETOCOME) == 0)
 665             ) {
 666                 /*
 667                  * note with the current version this code will only be used
 668                  * by OpenBSD-- NetBSD, FreeBSD, and MacOS have methods for
 669                  * re-defining sosend to use the sctp_sosend. One can
 670                  * optionally switch back to this code (by changing back the
 671                  * definitions) but this is not advisable. This code is used
 672                  * by FreeBSD when sending a file with sendfile() though.
 673                  */
 674                 int ret;
 675
 676                 ret = sctp_output(inp, inp->pkt, addr, inp->control, p, flags);
 677                 inp->pkt = NULL;
 678                 inp->control = NULL;
 679                 return (ret);
 680         } else {
 681                 return (0);
 682         }
 683 }
 684
 685 int
 686 sctp_disconnect(struct socket *so)
 687 {
 688         struct sctp_inpcb *inp;
 689
 690         inp = (struct sctp_inpcb *)so->so_pcb;
 691         if (inp == NULL) {
 692                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
 693                 return (ENOTCONN);
 694         }
 695         SCTP_INP_RLOCK(inp);
 696         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 697             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
 698                 if (LIST_EMPTY(&inp->sctp_asoc_list)) {
 699                         /* No connection */
 700                         SCTP_INP_RUNLOCK(inp);
 701                         return (0);
 702                 } else {
 703                         struct sctp_association *asoc;
 704                         struct sctp_tcb *stcb;
 705
 706                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
 707                         if (stcb == NULL) {
 708                                 SCTP_INP_RUNLOCK(inp);
 709                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 710                                 return (EINVAL);
 711                         }
 712                         SCTP_TCB_LOCK(stcb);
 713                         asoc = &stcb->asoc;
 714                         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 715                                 /* We are about to be freed, out of here */
 716                                 SCTP_TCB_UNLOCK(stcb);
 717                                 SCTP_INP_RUNLOCK(inp);
 718                                 return (0);
 719                         }
 720                         if (((so->so_options & SO_LINGER) &&
 721                             (so->so_linger == 0)) ||
 722                             (so->so_rcv.sb_cc > 0)) {
 723                                 if (SCTP_GET_STATE(asoc) !=
 724                                     SCTP_STATE_COOKIE_WAIT) {
 725                                         /* Left with Data unread */
 726                                         struct mbuf *err;
 727
 728                                         err = sctp_get_mbuf_for_msg(sizeof(struct sctp_paramhdr), 0, M_NOWAIT, 1, MT_DATA);
 729                                         if (err) {
 730                                                 /*
 731                                                  * Fill in the user
 732                                                  * initiated abort
 733                                                  */
 734                                                 struct sctp_paramhdr *ph;
 735
 736                                                 ph = mtod(err, struct sctp_paramhdr *);
 737                                                 SCTP_BUF_LEN(err) = sizeof(struct sctp_paramhdr);
 738                                                 ph->param_type = htons(SCTP_CAUSE_USER_INITIATED_ABT);
 739                                                 ph->param_length = htons(SCTP_BUF_LEN(err));
 740                                         }
 741                                         sctp_send_abort_tcb(stcb, err, SCTP_SO_LOCKED);
 742                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 743                                 }
 744                                 SCTP_INP_RUNLOCK(inp);
 745                                 if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 746                                     (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 747                                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 748                                 }
 749                                 (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 750                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_3);
 751                                 /* No unlock tcb assoc is gone */
 752                                 return (0);
 753                         }
 754                         if (TAILQ_EMPTY(&asoc->send_queue) &&
 755                             TAILQ_EMPTY(&asoc->sent_queue) &&
 756                             (asoc->stream_queue_cnt == 0)) {
 757                                 /* there is nothing queued to send, so done */
 758                                 if (asoc->locked_on_sending) {
 759                                         goto abort_anyway;
 760                                 }
 761                                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_SENT) &&
 762                                     (SCTP_GET_STATE(asoc) != SCTP_STATE_SHUTDOWN_ACK_SENT)) {
 763                                         /* only send SHUTDOWN 1st time thru */
 764                                         struct sctp_nets *netp;
 765
 766                                         if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) ||
 767                                             (SCTP_GET_STATE(asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 768                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 769                                         }
 770                                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 771                                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 772                                         sctp_stop_timers_for_shutdown(stcb);
 773                                         if (stcb->asoc.alternate) {
 774                                                 netp = stcb->asoc.alternate;
 775                                         } else {
 776                                                 netp = stcb->asoc.primary_destination;
 777                                         }
 778                                         sctp_send_shutdown(stcb, netp);
 779                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 780                                             stcb->sctp_ep, stcb, netp);
 781                                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD,
 782                                             stcb->sctp_ep, stcb, netp);
 783                                         sctp_chunk_output(stcb->sctp_ep, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_LOCKED);
 784                                 }
 785                         } else {
 786                                 /*
 787                                  * we still got (or just got) data to send,
 788                                  * so set SHUTDOWN_PENDING
 789                                  */
 790                                 /*
 791                                  * XXX sockets draft says that SCTP_EOF
 792                                  * should be sent with no data. currently,
 793                                  * we will allow user data to be sent first
 794                                  * and move to SHUTDOWN-PENDING
 795                                  */
 796                                 struct sctp_nets *netp;
 797
 798                                 if (stcb->asoc.alternate) {
 799                                         netp = stcb->asoc.alternate;
 800                                 } else {
 801                                         netp = stcb->asoc.primary_destination;
 802                                 }
 803
 804                                 asoc->state |= SCTP_STATE_SHUTDOWN_PENDING;
 805                                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb,
 806                                     netp);
 807                                 if (asoc->locked_on_sending) {
 808                                         /* Locked to send out the data */
 809                                         struct sctp_stream_queue_pending *sp;
 810
 811                                         sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
 812                                         if (sp == NULL) {
 813                                                 SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
 814                                                     asoc->locked_on_sending->stream_no);
 815                                         } else {
 816                                                 if ((sp->length == 0) && (sp->msg_is_complete == 0))
 817                                                         asoc->state |= SCTP_STATE_PARTIAL_MSG_LEFT;
 818                                         }
 819                                 }
 820                                 if (TAILQ_EMPTY(&asoc->send_queue) &&
 821                                     TAILQ_EMPTY(&asoc->sent_queue) &&
 822                                     (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
 823                                         struct mbuf *op_err;
 824
 825                         abort_anyway:
 826                                         op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
 827                                         stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_4;
 828                                         sctp_send_abort_tcb(stcb, op_err, SCTP_SO_LOCKED);
 829                                         SCTP_STAT_INCR_COUNTER32(sctps_aborted);
 830                                         if ((SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_OPEN) ||
 831                                             (SCTP_GET_STATE(&stcb->asoc) == SCTP_STATE_SHUTDOWN_RECEIVED)) {
 832                                                 SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 833                                         }
 834                                         SCTP_INP_RUNLOCK(inp);
 835                                         (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
 836                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_5);
 837                                         return (0);
 838                                 } else {
 839                                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
 840                                 }
 841                         }
 842                         soisdisconnecting(so);
 843                         SCTP_TCB_UNLOCK(stcb);
 844                         SCTP_INP_RUNLOCK(inp);
 845                         return (0);
 846                 }
 847                 /* not reached */
 848         } else {
 849                 /* UDP model does not support this */
 850                 SCTP_INP_RUNLOCK(inp);
 851                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 852                 return (EOPNOTSUPP);
 853         }
 854 }
 855
 856 int
 857 sctp_flush(struct socket *so, int how)
 858 {
 859         /*
 860          * We will just clear out the values and let subsequent close clear
 861          * out the data, if any. Note if the user did a shutdown(SHUT_RD)
 862          * they will not be able to read the data, the socket will block
 863          * that from happening.
 864          */
 865         struct sctp_inpcb *inp;
 866
 867         inp = (struct sctp_inpcb *)so->so_pcb;
 868         if (inp == NULL) {
 869                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 870                 return (EINVAL);
 871         }
 872         SCTP_INP_RLOCK(inp);
 873         /* For the 1 to many model this does nothing */
 874         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
 875                 SCTP_INP_RUNLOCK(inp);
 876                 return (0);
 877         }
 878         SCTP_INP_RUNLOCK(inp);
 879         if ((how == PRU_FLUSH_RD) || (how == PRU_FLUSH_RDWR)) {
 880                 /*
 881                  * First make sure the sb will be happy, we don't use these
 882                  * except maybe the count
 883                  */
 884                 SCTP_INP_WLOCK(inp);
 885                 SCTP_INP_READ_LOCK(inp);
 886                 inp->sctp_flags |= SCTP_PCB_FLAGS_SOCKET_CANT_READ;
 887                 SCTP_INP_READ_UNLOCK(inp);
 888                 SCTP_INP_WUNLOCK(inp);
 889                 so->so_rcv.sb_cc = 0;
 890                 so->so_rcv.sb_mbcnt = 0;
 891                 so->so_rcv.sb_mb = NULL;
 892         }
 893         if ((how == PRU_FLUSH_WR) || (how == PRU_FLUSH_RDWR)) {
 894                 /*
 895                  * First make sure the sb will be happy, we don't use these
 896                  * except maybe the count
 897                  */
 898                 so->so_snd.sb_cc = 0;
 899                 so->so_snd.sb_mbcnt = 0;
 900                 so->so_snd.sb_mb = NULL;
 901
 902         }
 903         return (0);
 904 }
 905
 906 int
 907 sctp_shutdown(struct socket *so)
 908 {
 909         struct sctp_inpcb *inp;
 910
 911         inp = (struct sctp_inpcb *)so->so_pcb;
 912         if (inp == NULL) {
 913                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
 914                 return (EINVAL);
 915         }
 916         SCTP_INP_RLOCK(inp);
 917         /* For UDP model this is a invalid call */
 918         if (!((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
 919             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) {
 920                 /* Restore the flags that the soshutdown took away. */
 921                 SOCKBUF_LOCK(&so->so_rcv);
 922                 so->so_rcv.sb_state &= ~SBS_CANTRCVMORE;
 923                 SOCKBUF_UNLOCK(&so->so_rcv);
 924                 /* This proc will wakeup for read and do nothing (I hope) */
 925                 SCTP_INP_RUNLOCK(inp);
 926                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
 927                 return (EOPNOTSUPP);
 928         } else {
 929                 /*
 930                  * Ok, if we reach here its the TCP model and it is either a
 931                  * SHUT_WR or SHUT_RDWR. This means we put the shutdown flag
 932                  * against it.
 933                  */
 934                 struct sctp_tcb *stcb;
 935                 struct sctp_association *asoc;
 936                 struct sctp_nets *netp;
 937
 938                 if ((so->so_state &
 939                     (SS_ISCONNECTED | SS_ISCONNECTING | SS_ISDISCONNECTING)) == 0) {
 940                         SCTP_INP_RUNLOCK(inp);
 941                         return (ENOTCONN);
 942                 }
 943                 socantsendmore(so);
 944
 945                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
 946                 if (stcb == NULL) {
 947                         /*
 948                          * Ok, we hit the case that the shutdown call was
 949                          * made after an abort or something. Nothing to do
 950                          * now.
 951                          */
 952                         SCTP_INP_RUNLOCK(inp);
 953                         return (0);
 954                 }
 955                 SCTP_TCB_LOCK(stcb);
 956                 asoc = &stcb->asoc;
 957                 if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) {
 958                         SCTP_TCB_UNLOCK(stcb);
 959                         SCTP_INP_RUNLOCK(inp);
 960                         return (0);
 961                 }
 962                 if ((SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_WAIT) &&
 963                     (SCTP_GET_STATE(asoc) != SCTP_STATE_COOKIE_ECHOED) &&
 964                     (SCTP_GET_STATE(asoc) != SCTP_STATE_OPEN)) {
 965                         /*
 966                          * If we are not in or before ESTABLISHED, there is
 967                          * no protocol action required.
 968                          */
 969                         SCTP_TCB_UNLOCK(stcb);
 970                         SCTP_INP_RUNLOCK(inp);
 971                         return (0);
 972                 }
 973                 if (stcb->asoc.alternate) {
 974                         netp = stcb->asoc.alternate;
 975                 } else {
 976                         netp = stcb->asoc.primary_destination;
 977                 }
 978                 if ((SCTP_GET_STATE(asoc) == SCTP_STATE_OPEN) &&
 979                     TAILQ_EMPTY(&asoc->send_queue) &&
 980                     TAILQ_EMPTY(&asoc->sent_queue) &&
 981                     (asoc->stream_queue_cnt == 0)) {
 982                         if (asoc->locked_on_sending) {
 983                                 goto abort_anyway;
 984                         }
 985                         /* there is nothing queued to send, so I'm done... */
 986                         SCTP_STAT_DECR_GAUGE32(sctps_currestab);
 987                         SCTP_SET_STATE(asoc, SCTP_STATE_SHUTDOWN_SENT);
 988                         SCTP_CLEAR_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 989                         sctp_stop_timers_for_shutdown(stcb);
 990                         sctp_send_shutdown(stcb, netp);
 991                         sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWN,
 992                             stcb->sctp_ep, stcb, netp);
 993                 } else {
 994                         /*
 995                          * We still got (or just got) data to send, so set
 996                          * SHUTDOWN_PENDING.
 997                          */
 998                         SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_SHUTDOWN_PENDING);
 999                         if (asoc->locked_on_sending) {
1000                                 /* Locked to send out the data */
1001                                 struct sctp_stream_queue_pending *sp;
1002
1003                                 sp = TAILQ_LAST(&asoc->locked_on_sending->outqueue, sctp_streamhead);
1004                                 if (sp == NULL) {
1005                                         SCTP_PRINTF("Error, sp is NULL, locked on sending is non-null strm:%d\n",
1006                                             asoc->locked_on_sending->stream_no);
1007                                 } else {
1008                                         if ((sp->length == 0) && (sp->msg_is_complete == 0)) {
1009                                                 SCTP_ADD_SUBSTATE(asoc, SCTP_STATE_PARTIAL_MSG_LEFT);
1010                                         }
1011                                 }
1012                         }
1013                         if (TAILQ_EMPTY(&asoc->send_queue) &&
1014                             TAILQ_EMPTY(&asoc->sent_queue) &&
1015                             (asoc->state & SCTP_STATE_PARTIAL_MSG_LEFT)) {
1016                                 struct mbuf *op_err;
1017
1018                 abort_anyway:
1019                                 op_err = sctp_generate_cause(SCTP_CAUSE_USER_INITIATED_ABT, "");
1020                                 stcb->sctp_ep->last_abort_code = SCTP_FROM_SCTP_USRREQ + SCTP_LOC_6;
1021                                 sctp_abort_an_association(stcb->sctp_ep, stcb,
1022                                     op_err, SCTP_SO_LOCKED);
1023                                 SCTP_INP_RUNLOCK(inp);
1024                                 return (0);
1025                         }
1026                 }
1027                 sctp_timer_start(SCTP_TIMER_TYPE_SHUTDOWNGUARD, stcb->sctp_ep, stcb, netp);
1028                 /*
1029                  * XXX: Why do this in the case where we have still data
1030                  * queued?
1031                  */
1032                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_CLOSING, SCTP_SO_LOCKED);
1033                 SCTP_TCB_UNLOCK(stcb);
1034                 SCTP_INP_RUNLOCK(inp);
1035                 return (0);
1036         }
1037 }
1038
1039 /*
1040  * copies a "user" presentable address and removes embedded scope, etc.
1041  * returns 0 on success, 1 on error
1042  */
1043 static uint32_t
1044 sctp_fill_user_address(struct sockaddr_storage *ss, struct sockaddr *sa)
1045 {
1046 #ifdef INET6
1047         struct sockaddr_in6 lsa6;
1048
1049         sa = (struct sockaddr *)sctp_recover_scope((struct sockaddr_in6 *)sa,
1050             &lsa6);
1051 #endif
1052         memcpy(ss, sa, sa->sa_len);
1053         return (0);
1054 }
1055
1056
1057
1058 /*
1059  * NOTE: assumes addr lock is held
1060  */
1061 static size_t
1062 sctp_fill_up_addresses_vrf(struct sctp_inpcb *inp,
1063     struct sctp_tcb *stcb,
1064     size_t limit,
1065     struct sockaddr_storage *sas,
1066     uint32_t vrf_id)
1067 {
1068         struct sctp_ifn *sctp_ifn;
1069         struct sctp_ifa *sctp_ifa;
1070         size_t actual;
1071         int loopback_scope;
1072
1073 #if defined(INET)
1074         int ipv4_local_scope, ipv4_addr_legal;
1075
1076 #endif
1077 #if defined(INET6)
1078         int local_scope, site_scope, ipv6_addr_legal;
1079
1080 #endif
1081         struct sctp_vrf *vrf;
1082
1083         actual = 0;
1084         if (limit <= 0)
1085                 return (actual);
1086
1087         if (stcb) {
1088                 /* Turn on all the appropriate scope */
1089                 loopback_scope = stcb->asoc.scope.loopback_scope;
1090 #if defined(INET)
1091                 ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope;
1092                 ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal;
1093 #endif
1094 #if defined(INET6)
1095                 local_scope = stcb->asoc.scope.local_scope;
1096                 site_scope = stcb->asoc.scope.site_scope;
1097                 ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal;
1098 #endif
1099         } else {
1100                 /* Use generic values for endpoints. */
1101                 loopback_scope = 1;
1102 #if defined(INET)
1103                 ipv4_local_scope = 1;
1104 #endif
1105 #if defined(INET6)
1106                 local_scope = 1;
1107                 site_scope = 1;
1108 #endif
1109                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
1110 #if defined(INET6)
1111                         ipv6_addr_legal = 1;
1112 #endif
1113 #if defined(INET)
1114                         if (SCTP_IPV6_V6ONLY(inp)) {
1115                                 ipv4_addr_legal = 0;
1116                         } else {
1117                                 ipv4_addr_legal = 1;
1118                         }
1119 #endif
1120                 } else {
1121 #if defined(INET6)
1122                         ipv6_addr_legal = 0;
1123 #endif
1124 #if defined(INET)
1125                         ipv4_addr_legal = 1;
1126 #endif
1127                 }
1128         }
1129         vrf = sctp_find_vrf(vrf_id);
1130         if (vrf == NULL) {
1131                 return (0);
1132         }
1133         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1134                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1135                         if ((loopback_scope == 0) &&
1136                             SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) {
1137                                 /* Skip loopback if loopback_scope not set */
1138                                 continue;
1139                         }
1140                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1141                                 if (stcb) {
1142                                         /*
1143                                          * For the BOUND-ALL case, the list
1144                                          * associated with a TCB is Always
1145                                          * considered a reverse list.. i.e.
1146                                          * it lists addresses that are NOT
1147                                          * part of the association. If this
1148                                          * is one of those we must skip it.
1149                                          */
1150                                         if (sctp_is_addr_restricted(stcb,
1151                                             sctp_ifa)) {
1152                                                 continue;
1153                                         }
1154                                 }
1155                                 switch (sctp_ifa->address.sa.sa_family) {
1156 #ifdef INET
1157                                 case AF_INET:
1158                                         if (ipv4_addr_legal) {
1159                                                 struct sockaddr_in *sin;
1160
1161                                                 sin = &sctp_ifa->address.sin;
1162                                                 if (sin->sin_addr.s_addr == 0) {
1163                                                         /*
1164                                                          * we skip
1165                                                          * unspecifed
1166                                                          * addresses
1167                                                          */
1168                                                         continue;
1169                                                 }
1170                                                 if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
1171                                                     &sin->sin_addr) != 0) {
1172                                                         continue;
1173                                                 }
1174                                                 if ((ipv4_local_scope == 0) &&
1175                                                     (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) {
1176                                                         continue;
1177                                                 }
1178 #ifdef INET6
1179                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
1180                                                         in6_sin_2_v4mapsin6(sin, (struct sockaddr_in6 *)sas);
1181                                                         ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1182                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(struct sockaddr_in6));
1183                                                         actual += sizeof(struct sockaddr_in6);
1184                                                 } else {
1185 #endif
1186                                                         memcpy(sas, sin, sizeof(*sin));
1187                                                         ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1188                                                         sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin));
1189                                                         actual += sizeof(*sin);
1190 #ifdef INET6
1191                                                 }
1192 #endif
1193                                                 if (actual >= limit) {
1194                                                         return (actual);
1195                                                 }
1196                                         } else {
1197                                                 continue;
1198                                         }
1199                                         break;
1200 #endif
1201 #ifdef INET6
1202                                 case AF_INET6:
1203                                         if (ipv6_addr_legal) {
1204                                                 struct sockaddr_in6 *sin6;
1205
1206                                                 sin6 = &sctp_ifa->address.sin6;
1207                                                 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
1208                                                         /*
1209                                                          * we skip
1210                                                          * unspecifed
1211                                                          * addresses
1212                                                          */
1213                                                         continue;
1214                                                 }
1215                                                 if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
1216                                                     &sin6->sin6_addr) != 0) {
1217                                                         continue;
1218                                                 }
1219                                                 if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
1220                                                         if (local_scope == 0)
1221                                                                 continue;
1222                                                         if (sin6->sin6_scope_id == 0) {
1223                                                                 if (sa6_recoverscope(sin6) != 0)
1224                                                                         /*
1225                                                                          *
1226                                                                          * bad
1227                                                                          *
1228                                                                          * li
1229                                                                          * nk
1230                                                                          *
1231                                                                          * loc
1232                                                                          * al
1233                                                                          *
1234                                                                          * add
1235                                                                          * re
1236                                                                          * ss
1237                                                                          * */
1238                                                                         continue;
1239                                                         }
1240                                                 }
1241                                                 if ((site_scope == 0) &&
1242                                                     (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) {
1243                                                         continue;
1244                                                 }
1245                                                 memcpy(sas, sin6, sizeof(*sin6));
1246                                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1247                                                 sas = (struct sockaddr_storage *)((caddr_t)sas + sizeof(*sin6));
1248                                                 actual += sizeof(*sin6);
1249                                                 if (actual >= limit) {
1250                                                         return (actual);
1251                                                 }
1252                                         } else {
1253                                                 continue;
1254                                         }
1255                                         break;
1256 #endif
1257                                 default:
1258                                         /* TSNH */
1259                                         break;
1260                                 }
1261                         }
1262                 }
1263         } else {
1264                 struct sctp_laddr *laddr;
1265
1266                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1267                         if (stcb) {
1268                                 if (sctp_is_addr_restricted(stcb, laddr->ifa)) {
1269                                         continue;
1270                                 }
1271                         }
1272                         if (sctp_fill_user_address(sas, &laddr->ifa->address.sa))
1273                                 continue;
1274                         switch (laddr->ifa->address.sa.sa_family) {
1275 #ifdef INET
1276                         case AF_INET:
1277                                 ((struct sockaddr_in *)sas)->sin_port = inp->sctp_lport;
1278                                 break;
1279 #endif
1280 #ifdef INET6
1281                         case AF_INET6:
1282                                 ((struct sockaddr_in6 *)sas)->sin6_port = inp->sctp_lport;
1283                                 break;
1284 #endif
1285                         default:
1286                                 /* TSNH */
1287                                 break;
1288                         }
1289                         sas = (struct sockaddr_storage *)((caddr_t)sas +
1290                             laddr->ifa->address.sa.sa_len);
1291                         actual += laddr->ifa->address.sa.sa_len;
1292                         if (actual >= limit) {
1293                                 return (actual);
1294                         }
1295                 }
1296         }
1297         return (actual);
1298 }
1299
1300 static size_t
1301 sctp_fill_up_addresses(struct sctp_inpcb *inp,
1302     struct sctp_tcb *stcb,
1303     size_t limit,
1304     struct sockaddr_storage *sas)
1305 {
1306         size_t size = 0;
1307
1308         SCTP_IPI_ADDR_RLOCK();
1309         /* fill up addresses for the endpoint's default vrf */
1310         size = sctp_fill_up_addresses_vrf(inp, stcb, limit, sas,
1311             inp->def_vrf_id);
1312         SCTP_IPI_ADDR_RUNLOCK();
1313         return (size);
1314 }
1315
1316 /*
1317  * NOTE: assumes addr lock is held
1318  */
1319 static int
1320 sctp_count_max_addresses_vrf(struct sctp_inpcb *inp, uint32_t vrf_id)
1321 {
1322         int cnt = 0;
1323         struct sctp_vrf *vrf = NULL;
1324
1325         /*
1326          * In both sub-set bound an bound_all cases we return the MAXIMUM
1327          * number of addresses that you COULD get. In reality the sub-set
1328          * bound may have an exclusion list for a given TCB OR in the
1329          * bound-all case a TCB may NOT include the loopback or other
1330          * addresses as well.
1331          */
1332         vrf = sctp_find_vrf(vrf_id);
1333         if (vrf == NULL) {
1334                 return (0);
1335         }
1336         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1337                 struct sctp_ifn *sctp_ifn;
1338                 struct sctp_ifa *sctp_ifa;
1339
1340                 LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) {
1341                         LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) {
1342                                 /* Count them if they are the right type */
1343                                 switch (sctp_ifa->address.sa.sa_family) {
1344 #ifdef INET
1345                                 case AF_INET:
1346 #ifdef INET6
1347                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1348                                                 cnt += sizeof(struct sockaddr_in6);
1349                                         else
1350                                                 cnt += sizeof(struct sockaddr_in);
1351 #else
1352                                         cnt += sizeof(struct sockaddr_in);
1353 #endif
1354                                         break;
1355 #endif
1356 #ifdef INET6
1357                                 case AF_INET6:
1358                                         cnt += sizeof(struct sockaddr_in6);
1359                                         break;
1360 #endif
1361                                 default:
1362                                         break;
1363                                 }
1364                         }
1365                 }
1366         } else {
1367                 struct sctp_laddr *laddr;
1368
1369                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
1370                         switch (laddr->ifa->address.sa.sa_family) {
1371 #ifdef INET
1372                         case AF_INET:
1373 #ifdef INET6
1374                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4))
1375                                         cnt += sizeof(struct sockaddr_in6);
1376                                 else
1377                                         cnt += sizeof(struct sockaddr_in);
1378 #else
1379                                 cnt += sizeof(struct sockaddr_in);
1380 #endif
1381                                 break;
1382 #endif
1383 #ifdef INET6
1384                         case AF_INET6:
1385                                 cnt += sizeof(struct sockaddr_in6);
1386                                 break;
1387 #endif
1388                         default:
1389                                 break;
1390                         }
1391                 }
1392         }
1393         return (cnt);
1394 }
1395
1396 static int
1397 sctp_count_max_addresses(struct sctp_inpcb *inp)
1398 {
1399         int cnt = 0;
1400
1401         SCTP_IPI_ADDR_RLOCK();
1402         /* count addresses for the endpoint's default VRF */
1403         cnt = sctp_count_max_addresses_vrf(inp, inp->def_vrf_id);
1404         SCTP_IPI_ADDR_RUNLOCK();
1405         return (cnt);
1406 }
1407
1408 static int
1409 sctp_do_connect_x(struct socket *so, struct sctp_inpcb *inp, void *optval,
1410     size_t optsize, void *p, int delay)
1411 {
1412         int error = 0;
1413         int creat_lock_on = 0;
1414         struct sctp_tcb *stcb = NULL;
1415         struct sockaddr *sa;
1416         int num_v6 = 0, num_v4 = 0, *totaddrp, totaddr;
1417         uint32_t vrf_id;
1418         int bad_addresses = 0;
1419         sctp_assoc_t *a_id;
1420
1421         SCTPDBG(SCTP_DEBUG_PCB1, "Connectx called\n");
1422
1423         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
1424             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
1425                 /* We are already connected AND the TCP model */
1426                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
1427                 return (EADDRINUSE);
1428         }
1429         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
1430             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
1431                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1432                 return (EINVAL);
1433         }
1434         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
1435                 SCTP_INP_RLOCK(inp);
1436                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
1437                 SCTP_INP_RUNLOCK(inp);
1438         }
1439         if (stcb) {
1440                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1441                 return (EALREADY);
1442         }
1443         SCTP_INP_INCR_REF(inp);
1444         SCTP_ASOC_CREATE_LOCK(inp);
1445         creat_lock_on = 1;
1446         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
1447             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
1448                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
1449                 error = EFAULT;
1450                 goto out_now;
1451         }
1452         totaddrp = (int *)optval;
1453         totaddr = *totaddrp;
1454         sa = (struct sockaddr *)(totaddrp + 1);
1455         stcb = sctp_connectx_helper_find(inp, sa, &totaddr, &num_v4, &num_v6, &error, (optsize - sizeof(int)), &bad_addresses);
1456         if ((stcb != NULL) || bad_addresses) {
1457                 /* Already have or am bring up an association */
1458                 SCTP_ASOC_CREATE_UNLOCK(inp);
1459                 creat_lock_on = 0;
1460                 if (stcb)
1461                         SCTP_TCB_UNLOCK(stcb);
1462                 if (bad_addresses == 0) {
1463                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
1464                         error = EALREADY;
1465                 }
1466                 goto out_now;
1467         }
1468 #ifdef INET6
1469         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
1470             (num_v6 > 0)) {
1471                 error = EINVAL;
1472                 goto out_now;
1473         }
1474         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
1475             (num_v4 > 0)) {
1476                 struct in6pcb *inp6;
1477
1478                 inp6 = (struct in6pcb *)inp;
1479                 if (SCTP_IPV6_V6ONLY(inp6)) {
1480                         /*
1481                          * if IPV6_V6ONLY flag, ignore connections destined
1482                          * to a v4 addr or v4-mapped addr
1483                          */
1484                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1485                         error = EINVAL;
1486                         goto out_now;
1487                 }
1488         }
1489 #endif                          /* INET6 */
1490         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
1491             SCTP_PCB_FLAGS_UNBOUND) {
1492                 /* Bind a ephemeral port */
1493                 error = sctp_inpcb_bind(so, NULL, NULL, p);
1494                 if (error) {
1495                         goto out_now;
1496                 }
1497         }
1498         /* FIX ME: do we want to pass in a vrf on the connect call? */
1499         vrf_id = inp->def_vrf_id;
1500
1501
1502         /* We are GOOD to go */
1503         stcb = sctp_aloc_assoc(inp, sa, &error, 0, vrf_id,
1504             inp->sctp_ep.pre_open_stream_count,
1505             (struct thread *)p
1506             );
1507         if (stcb == NULL) {
1508                 /* Gak! no memory */
1509                 goto out_now;
1510         }
1511         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1512                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1513                 /* Set the connected flag so we can queue data */
1514                 soisconnecting(so);
1515         }
1516         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
1517         /* move to second address */
1518         switch (sa->sa_family) {
1519 #ifdef INET
1520         case AF_INET:
1521                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in));
1522                 break;
1523 #endif
1524 #ifdef INET6
1525         case AF_INET6:
1526                 sa = (struct sockaddr *)((caddr_t)sa + sizeof(struct sockaddr_in6));
1527                 break;
1528 #endif
1529         default:
1530                 break;
1531         }
1532
1533         error = 0;
1534         sctp_connectx_helper_add(stcb, sa, (totaddr - 1), &error);
1535         /* Fill in the return id */
1536         if (error) {
1537                 (void)sctp_free_assoc(inp, stcb, SCTP_PCBFREE_FORCE,
1538                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_7);
1539                 goto out_now;
1540         }
1541         a_id = (sctp_assoc_t *) optval;
1542         *a_id = sctp_get_associd(stcb);
1543
1544         /* initialize authentication parameters for the assoc */
1545         sctp_initialize_auth_params(inp, stcb);
1546
1547         if (delay) {
1548                 /* doing delayed connection */
1549                 stcb->asoc.delayed_connection = 1;
1550                 sctp_timer_start(SCTP_TIMER_TYPE_INIT, inp, stcb, stcb->asoc.primary_destination);
1551         } else {
1552                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
1553                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
1554         }
1555         SCTP_TCB_UNLOCK(stcb);
1556         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
1557                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
1558                 /* Set the connected flag so we can queue data */
1559                 soisconnecting(so);
1560         }
1561 out_now:
1562         if (creat_lock_on) {
1563                 SCTP_ASOC_CREATE_UNLOCK(inp);
1564         }
1565         SCTP_INP_DECR_REF(inp);
1566         return (error);
1567 }
1568
1569 #define SCTP_FIND_STCB(inp, stcb, assoc_id) { \
1570         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||\
1571             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { \
1572                 SCTP_INP_RLOCK(inp); \
1573                 stcb = LIST_FIRST(&inp->sctp_asoc_list); \
1574                 if (stcb) { \
1575                         SCTP_TCB_LOCK(stcb); \
1576                 } \
1577                 SCTP_INP_RUNLOCK(inp); \
1578         } else if (assoc_id > SCTP_ALL_ASSOC) { \
1579                 stcb = sctp_findassociation_ep_asocid(inp, assoc_id, 1); \
1580                 if (stcb == NULL) { \
1581                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT); \
1582                         error = ENOENT; \
1583                         break; \
1584                 } \
1585         } else { \
1586                 stcb = NULL; \
1587         } \
1588   }
1589
1590
1591 #define SCTP_CHECK_AND_CAST(destp, srcp, type, size) {\
1592         if (size < sizeof(type)) { \
1593                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL); \
1594                 error = EINVAL; \
1595                 break; \
1596         } else { \
1597                 destp = (type *)srcp; \
1598         } \
1599       }
1600
1601 static int
1602 sctp_getopt(struct socket *so, int optname, void *optval, size_t *optsize,
1603     void *p)
1604 {
1605         struct sctp_inpcb *inp = NULL;
1606         int error, val = 0;
1607         struct sctp_tcb *stcb = NULL;
1608
1609         if (optval == NULL) {
1610                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1611                 return (EINVAL);
1612         }
1613         inp = (struct sctp_inpcb *)so->so_pcb;
1614         if (inp == NULL) {
1615                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1616                 return EINVAL;
1617         }
1618         error = 0;
1619
1620         switch (optname) {
1621         case SCTP_NODELAY:
1622         case SCTP_AUTOCLOSE:
1623         case SCTP_EXPLICIT_EOR:
1624         case SCTP_AUTO_ASCONF:
1625         case SCTP_DISABLE_FRAGMENTS:
1626         case SCTP_I_WANT_MAPPED_V4_ADDR:
1627         case SCTP_USE_EXT_RCVINFO:
1628                 SCTP_INP_RLOCK(inp);
1629                 switch (optname) {
1630                 case SCTP_DISABLE_FRAGMENTS:
1631                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NO_FRAGMENT);
1632                         break;
1633                 case SCTP_I_WANT_MAPPED_V4_ADDR:
1634                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4);
1635                         break;
1636                 case SCTP_AUTO_ASCONF:
1637                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
1638                                 /* only valid for bound all sockets */
1639                                 val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTO_ASCONF);
1640                         } else {
1641                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1642                                 error = EINVAL;
1643                                 goto flags_out;
1644                         }
1645                         break;
1646                 case SCTP_EXPLICIT_EOR:
1647                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR);
1648                         break;
1649                 case SCTP_NODELAY:
1650                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NODELAY);
1651                         break;
1652                 case SCTP_USE_EXT_RCVINFO:
1653                         val = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO);
1654                         break;
1655                 case SCTP_AUTOCLOSE:
1656                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTOCLOSE))
1657                                 val = TICKS_TO_SEC(inp->sctp_ep.auto_close_time);
1658                         else
1659                                 val = 0;
1660                         break;
1661
1662                 default:
1663                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
1664                         error = ENOPROTOOPT;
1665                 }               /* end switch (sopt->sopt_name) */
1666                 if (*optsize < sizeof(val)) {
1667                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1668                         error = EINVAL;
1669                 }
1670 flags_out:
1671                 SCTP_INP_RUNLOCK(inp);
1672                 if (error == 0) {
1673                         /* return the option value */
1674                         *(int *)optval = val;
1675                         *optsize = sizeof(val);
1676                 }
1677                 break;
1678         case SCTP_GET_PACKET_LOG:
1679                 {
1680 #ifdef  SCTP_PACKET_LOGGING
1681                         uint8_t *target;
1682                         int ret;
1683
1684                         SCTP_CHECK_AND_CAST(target, optval, uint8_t, *optsize);
1685                         ret = sctp_copy_out_packet_log(target, (int)*optsize);
1686                         *optsize = ret;
1687 #else
1688                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1689                         error = EOPNOTSUPP;
1690 #endif
1691                         break;
1692                 }
1693         case SCTP_REUSE_PORT:
1694                 {
1695                         uint32_t *value;
1696
1697                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
1698                                 /* Can't do this for a 1-m socket */
1699                                 error = EINVAL;
1700                                 break;
1701                         }
1702                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1703                         *value = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
1704                         *optsize = sizeof(uint32_t);
1705                         break;
1706                 }
1707         case SCTP_PARTIAL_DELIVERY_POINT:
1708                 {
1709                         uint32_t *value;
1710
1711                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1712                         *value = inp->partial_delivery_point;
1713                         *optsize = sizeof(uint32_t);
1714                         break;
1715                 }
1716         case SCTP_FRAGMENT_INTERLEAVE:
1717                 {
1718                         uint32_t *value;
1719
1720                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1721                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) {
1722                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) {
1723                                         *value = SCTP_FRAG_LEVEL_2;
1724                                 } else {
1725                                         *value = SCTP_FRAG_LEVEL_1;
1726                                 }
1727                         } else {
1728                                 *value = SCTP_FRAG_LEVEL_0;
1729                         }
1730                         *optsize = sizeof(uint32_t);
1731                         break;
1732                 }
1733         case SCTP_CMT_ON_OFF:
1734                 {
1735                         struct sctp_assoc_value *av;
1736
1737                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1738                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1739                         if (stcb) {
1740                                 av->assoc_value = stcb->asoc.sctp_cmt_on_off;
1741                                 SCTP_TCB_UNLOCK(stcb);
1742                         } else {
1743                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1744                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1745                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1746                                         SCTP_INP_RLOCK(inp);
1747                                         av->assoc_value = inp->sctp_cmt_on_off;
1748                                         SCTP_INP_RUNLOCK(inp);
1749                                 } else {
1750                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1751                                         error = EINVAL;
1752                                 }
1753                         }
1754                         if (error == 0) {
1755                                 *optsize = sizeof(struct sctp_assoc_value);
1756                         }
1757                         break;
1758                 }
1759         case SCTP_PLUGGABLE_CC:
1760                 {
1761                         struct sctp_assoc_value *av;
1762
1763                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1764                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1765                         if (stcb) {
1766                                 av->assoc_value = stcb->asoc.congestion_control_module;
1767                                 SCTP_TCB_UNLOCK(stcb);
1768                         } else {
1769                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1770                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1771                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1772                                         SCTP_INP_RLOCK(inp);
1773                                         av->assoc_value = inp->sctp_ep.sctp_default_cc_module;
1774                                         SCTP_INP_RUNLOCK(inp);
1775                                 } else {
1776                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1777                                         error = EINVAL;
1778                                 }
1779                         }
1780                         if (error == 0) {
1781                                 *optsize = sizeof(struct sctp_assoc_value);
1782                         }
1783                         break;
1784                 }
1785         case SCTP_CC_OPTION:
1786                 {
1787                         struct sctp_cc_option *cc_opt;
1788
1789                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, *optsize);
1790                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
1791                         if (stcb == NULL) {
1792                                 error = EINVAL;
1793                         } else {
1794                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
1795                                         error = ENOTSUP;
1796                                 } else {
1797                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 0, cc_opt);
1798                                         *optsize = sizeof(struct sctp_cc_option);
1799                                 }
1800                                 SCTP_TCB_UNLOCK(stcb);
1801                         }
1802                         break;
1803                 }
1804         case SCTP_PLUGGABLE_SS:
1805                 {
1806                         struct sctp_assoc_value *av;
1807
1808                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1809                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1810                         if (stcb) {
1811                                 av->assoc_value = stcb->asoc.stream_scheduling_module;
1812                                 SCTP_TCB_UNLOCK(stcb);
1813                         } else {
1814                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1815                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1816                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1817                                         SCTP_INP_RLOCK(inp);
1818                                         av->assoc_value = inp->sctp_ep.sctp_default_ss_module;
1819                                         SCTP_INP_RUNLOCK(inp);
1820                                 } else {
1821                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1822                                         error = EINVAL;
1823                                 }
1824                         }
1825                         if (error == 0) {
1826                                 *optsize = sizeof(struct sctp_assoc_value);
1827                         }
1828                         break;
1829                 }
1830         case SCTP_SS_VALUE:
1831                 {
1832                         struct sctp_stream_value *av;
1833
1834                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, *optsize);
1835                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1836                         if (stcb) {
1837                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
1838                                     (stcb->asoc.ss_functions.sctp_ss_get_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
1839                                     &av->stream_value) < 0)) {
1840                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1841                                         error = EINVAL;
1842                                 } else {
1843                                         *optsize = sizeof(struct sctp_stream_value);
1844                                 }
1845                                 SCTP_TCB_UNLOCK(stcb);
1846                         } else {
1847                                 /*
1848                                  * Can't get stream value without
1849                                  * association
1850                                  */
1851                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1852                                 error = EINVAL;
1853                         }
1854                         break;
1855                 }
1856         case SCTP_GET_ADDR_LEN:
1857                 {
1858                         struct sctp_assoc_value *av;
1859
1860                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1861                         error = EINVAL;
1862 #ifdef INET
1863                         if (av->assoc_value == AF_INET) {
1864                                 av->assoc_value = sizeof(struct sockaddr_in);
1865                                 error = 0;
1866                         }
1867 #endif
1868 #ifdef INET6
1869                         if (av->assoc_value == AF_INET6) {
1870                                 av->assoc_value = sizeof(struct sockaddr_in6);
1871                                 error = 0;
1872                         }
1873 #endif
1874                         if (error) {
1875                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1876                         } else {
1877                                 *optsize = sizeof(struct sctp_assoc_value);
1878                         }
1879                         break;
1880                 }
1881         case SCTP_GET_ASSOC_NUMBER:
1882                 {
1883                         uint32_t *value, cnt;
1884
1885                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
1886                         SCTP_INP_RLOCK(inp);
1887                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1888                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1889                                 /* Can't do this for a 1-1 socket */
1890                                 error = EINVAL;
1891                                 SCTP_INP_RUNLOCK(inp);
1892                                 break;
1893                         }
1894                         cnt = 0;
1895                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1896                                 cnt++;
1897                         }
1898                         SCTP_INP_RUNLOCK(inp);
1899                         *value = cnt;
1900                         *optsize = sizeof(uint32_t);
1901                         break;
1902                 }
1903         case SCTP_GET_ASSOC_ID_LIST:
1904                 {
1905                         struct sctp_assoc_ids *ids;
1906                         unsigned int at, limit;
1907
1908                         SCTP_CHECK_AND_CAST(ids, optval, struct sctp_assoc_ids, *optsize);
1909                         SCTP_INP_RLOCK(inp);
1910                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1911                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
1912                                 /* Can't do this for a 1-1 socket */
1913                                 error = EINVAL;
1914                                 SCTP_INP_RUNLOCK(inp);
1915                                 break;
1916                         }
1917                         at = 0;
1918                         limit = (*optsize - sizeof(uint32_t)) / sizeof(sctp_assoc_t);
1919                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
1920                                 if (at < limit) {
1921                                         ids->gaids_assoc_id[at++] = sctp_get_associd(stcb);
1922                                 } else {
1923                                         error = EINVAL;
1924                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1925                                         break;
1926                                 }
1927                         }
1928                         SCTP_INP_RUNLOCK(inp);
1929                         if (error == 0) {
1930                                 ids->gaids_number_of_ids = at;
1931                                 *optsize = ((at * sizeof(sctp_assoc_t)) + sizeof(uint32_t));
1932                         }
1933                         break;
1934                 }
1935         case SCTP_CONTEXT:
1936                 {
1937                         struct sctp_assoc_value *av;
1938
1939                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
1940                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
1941
1942                         if (stcb) {
1943                                 av->assoc_value = stcb->asoc.context;
1944                                 SCTP_TCB_UNLOCK(stcb);
1945                         } else {
1946                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
1947                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
1948                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
1949                                         SCTP_INP_RLOCK(inp);
1950                                         av->assoc_value = inp->sctp_context;
1951                                         SCTP_INP_RUNLOCK(inp);
1952                                 } else {
1953                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
1954                                         error = EINVAL;
1955                                 }
1956                         }
1957                         if (error == 0) {
1958                                 *optsize = sizeof(struct sctp_assoc_value);
1959                         }
1960                         break;
1961                 }
1962         case SCTP_VRF_ID:
1963                 {
1964                         uint32_t *default_vrfid;
1965
1966                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, *optsize);
1967                         *default_vrfid = inp->def_vrf_id;
1968                         *optsize = sizeof(uint32_t);
1969                         break;
1970                 }
1971         case SCTP_GET_ASOC_VRF:
1972                 {
1973                         struct sctp_assoc_value *id;
1974
1975                         SCTP_CHECK_AND_CAST(id, optval, struct sctp_assoc_value, *optsize);
1976                         SCTP_FIND_STCB(inp, stcb, id->assoc_id);
1977                         if (stcb == NULL) {
1978                                 error = EINVAL;
1979                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
1980                         } else {
1981                                 id->assoc_value = stcb->asoc.vrf_id;
1982                                 *optsize = sizeof(struct sctp_assoc_value);
1983                         }
1984                         break;
1985                 }
1986         case SCTP_GET_VRF_IDS:
1987                 {
1988                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
1989                         error = EOPNOTSUPP;
1990                         break;
1991                 }
1992         case SCTP_GET_NONCE_VALUES:
1993                 {
1994                         struct sctp_get_nonce_values *gnv;
1995
1996                         SCTP_CHECK_AND_CAST(gnv, optval, struct sctp_get_nonce_values, *optsize);
1997                         SCTP_FIND_STCB(inp, stcb, gnv->gn_assoc_id);
1998
1999                         if (stcb) {
2000                                 gnv->gn_peers_tag = stcb->asoc.peer_vtag;
2001                                 gnv->gn_local_tag = stcb->asoc.my_vtag;
2002                                 SCTP_TCB_UNLOCK(stcb);
2003                                 *optsize = sizeof(struct sctp_get_nonce_values);
2004                         } else {
2005                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2006                                 error = ENOTCONN;
2007                         }
2008                         break;
2009                 }
2010         case SCTP_DELAYED_SACK:
2011                 {
2012                         struct sctp_sack_info *sack;
2013
2014                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, *optsize);
2015                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
2016                         if (stcb) {
2017                                 sack->sack_delay = stcb->asoc.delayed_ack;
2018                                 sack->sack_freq = stcb->asoc.sack_freq;
2019                                 SCTP_TCB_UNLOCK(stcb);
2020                         } else {
2021                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2022                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2023                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC)) {
2024                                         SCTP_INP_RLOCK(inp);
2025                                         sack->sack_delay = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]);
2026                                         sack->sack_freq = inp->sctp_ep.sctp_sack_freq;
2027                                         SCTP_INP_RUNLOCK(inp);
2028                                 } else {
2029                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2030                                         error = EINVAL;
2031                                 }
2032                         }
2033                         if (error == 0) {
2034                                 *optsize = sizeof(struct sctp_sack_info);
2035                         }
2036                         break;
2037                 }
2038         case SCTP_GET_SNDBUF_USE:
2039                 {
2040                         struct sctp_sockstat *ss;
2041
2042                         SCTP_CHECK_AND_CAST(ss, optval, struct sctp_sockstat, *optsize);
2043                         SCTP_FIND_STCB(inp, stcb, ss->ss_assoc_id);
2044
2045                         if (stcb) {
2046                                 ss->ss_total_sndbuf = stcb->asoc.total_output_queue_size;
2047                                 ss->ss_total_recv_buf = (stcb->asoc.size_on_reasm_queue +
2048                                     stcb->asoc.size_on_all_streams);
2049                                 SCTP_TCB_UNLOCK(stcb);
2050                                 *optsize = sizeof(struct sctp_sockstat);
2051                         } else {
2052                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2053                                 error = ENOTCONN;
2054                         }
2055                         break;
2056                 }
2057         case SCTP_MAX_BURST:
2058                 {
2059                         struct sctp_assoc_value *av;
2060
2061                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2062                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2063
2064                         if (stcb) {
2065                                 av->assoc_value = stcb->asoc.max_burst;
2066                                 SCTP_TCB_UNLOCK(stcb);
2067                         } else {
2068                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2069                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2070                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2071                                         SCTP_INP_RLOCK(inp);
2072                                         av->assoc_value = inp->sctp_ep.max_burst;
2073                                         SCTP_INP_RUNLOCK(inp);
2074                                 } else {
2075                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2076                                         error = EINVAL;
2077                                 }
2078                         }
2079                         if (error == 0) {
2080                                 *optsize = sizeof(struct sctp_assoc_value);
2081                         }
2082                         break;
2083                 }
2084         case SCTP_MAXSEG:
2085                 {
2086                         struct sctp_assoc_value *av;
2087                         int ovh;
2088
2089                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
2090                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
2091
2092                         if (stcb) {
2093                                 av->assoc_value = sctp_get_frag_point(stcb, &stcb->asoc);
2094                                 SCTP_TCB_UNLOCK(stcb);
2095                         } else {
2096                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2097                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2098                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
2099                                         SCTP_INP_RLOCK(inp);
2100                                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
2101                                                 ovh = SCTP_MED_OVERHEAD;
2102                                         } else {
2103                                                 ovh = SCTP_MED_V4_OVERHEAD;
2104                                         }
2105                                         if (inp->sctp_frag_point >= SCTP_DEFAULT_MAXSEGMENT)
2106                                                 av->assoc_value = 0;
2107                                         else
2108                                                 av->assoc_value = inp->sctp_frag_point - ovh;
2109                                         SCTP_INP_RUNLOCK(inp);
2110                                 } else {
2111                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2112                                         error = EINVAL;
2113                                 }
2114                         }
2115                         if (error == 0) {
2116                                 *optsize = sizeof(struct sctp_assoc_value);
2117                         }
2118                         break;
2119                 }
2120         case SCTP_GET_STAT_LOG:
2121                 error = sctp_fill_stat_log(optval, optsize);
2122                 break;
2123         case SCTP_EVENTS:
2124                 {
2125                         struct sctp_event_subscribe *events;
2126
2127                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, *optsize);
2128                         memset(events, 0, sizeof(struct sctp_event_subscribe));
2129                         SCTP_INP_RLOCK(inp);
2130                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT))
2131                                 events->sctp_data_io_event = 1;
2132
2133                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT))
2134                                 events->sctp_association_event = 1;
2135
2136                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT))
2137                                 events->sctp_address_event = 1;
2138
2139                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT))
2140                                 events->sctp_send_failure_event = 1;
2141
2142                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR))
2143                                 events->sctp_peer_error_event = 1;
2144
2145                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT))
2146                                 events->sctp_shutdown_event = 1;
2147
2148                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT))
2149                                 events->sctp_partial_delivery_event = 1;
2150
2151                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT))
2152                                 events->sctp_adaptation_layer_event = 1;
2153
2154                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT))
2155                                 events->sctp_authentication_event = 1;
2156
2157                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT))
2158                                 events->sctp_sender_dry_event = 1;
2159
2160                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT))
2161                                 events->sctp_stream_reset_event = 1;
2162                         SCTP_INP_RUNLOCK(inp);
2163                         *optsize = sizeof(struct sctp_event_subscribe);
2164                         break;
2165                 }
2166         case SCTP_ADAPTATION_LAYER:
2167                 {
2168                         uint32_t *value;
2169
2170                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2171
2172                         SCTP_INP_RLOCK(inp);
2173                         *value = inp->sctp_ep.adaptation_layer_indicator;
2174                         SCTP_INP_RUNLOCK(inp);
2175                         *optsize = sizeof(uint32_t);
2176                         break;
2177                 }
2178         case SCTP_SET_INITIAL_DBG_SEQ:
2179                 {
2180                         uint32_t *value;
2181
2182                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2183                         SCTP_INP_RLOCK(inp);
2184                         *value = inp->sctp_ep.initial_sequence_debug;
2185                         SCTP_INP_RUNLOCK(inp);
2186                         *optsize = sizeof(uint32_t);
2187                         break;
2188                 }
2189         case SCTP_GET_LOCAL_ADDR_SIZE:
2190                 {
2191                         uint32_t *value;
2192
2193                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2194                         SCTP_INP_RLOCK(inp);
2195                         *value = sctp_count_max_addresses(inp);
2196                         SCTP_INP_RUNLOCK(inp);
2197                         *optsize = sizeof(uint32_t);
2198                         break;
2199                 }
2200         case SCTP_GET_REMOTE_ADDR_SIZE:
2201                 {
2202                         uint32_t *value;
2203                         size_t size;
2204                         struct sctp_nets *net;
2205
2206                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, *optsize);
2207                         /* FIXME MT: change to sctp_assoc_value? */
2208                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
2209
2210                         if (stcb) {
2211                                 size = 0;
2212                                 /* Count the sizes */
2213                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2214                                         switch (net->ro._l_addr.sa.sa_family) {
2215 #ifdef INET
2216                                         case AF_INET:
2217 #ifdef INET6
2218                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2219                                                         size += sizeof(struct sockaddr_in6);
2220                                                 } else {
2221                                                         size += sizeof(struct sockaddr_in);
2222                                                 }
2223 #else
2224                                                 size += sizeof(struct sockaddr_in);
2225 #endif
2226                                                 break;
2227 #endif
2228 #ifdef INET6
2229                                         case AF_INET6:
2230                                                 size += sizeof(struct sockaddr_in6);
2231                                                 break;
2232 #endif
2233                                         default:
2234                                                 break;
2235                                         }
2236                                 }
2237                                 SCTP_TCB_UNLOCK(stcb);
2238                                 *value = (uint32_t) size;
2239                                 *optsize = sizeof(uint32_t);
2240                         } else {
2241                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
2242                                 error = ENOTCONN;
2243                         }
2244                         break;
2245                 }
2246         case SCTP_GET_PEER_ADDRESSES:
2247                 /*
2248                  * Get the address information, an array is passed in to
2249                  * fill up we pack it.
2250                  */
2251                 {
2252                         size_t cpsz, left;
2253                         struct sockaddr_storage *sas;
2254                         struct sctp_nets *net;
2255                         struct sctp_getaddresses *saddr;
2256
2257                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2258                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2259
2260                         if (stcb) {
2261                                 left = (*optsize) - sizeof(struct sctp_getaddresses);
2262                                 *optsize = sizeof(struct sctp_getaddresses);
2263                                 sas = (struct sockaddr_storage *)&saddr->addr[0];
2264
2265                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
2266                                         switch (net->ro._l_addr.sa.sa_family) {
2267 #ifdef INET
2268                                         case AF_INET:
2269 #ifdef INET6
2270                                                 if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2271                                                         cpsz = sizeof(struct sockaddr_in6);
2272                                                 } else {
2273                                                         cpsz = sizeof(struct sockaddr_in);
2274                                                 }
2275 #else
2276                                                 cpsz = sizeof(struct sockaddr_in);
2277 #endif
2278                                                 break;
2279 #endif
2280 #ifdef INET6
2281                                         case AF_INET6:
2282                                                 cpsz = sizeof(struct sockaddr_in6);
2283                                                 break;
2284 #endif
2285                                         default:
2286                                                 cpsz = 0;
2287                                                 break;
2288                                         }
2289                                         if (cpsz == 0) {
2290                                                 break;
2291                                         }
2292                                         if (left < cpsz) {
2293                                                 /* not enough room. */
2294                                                 break;
2295                                         }
2296 #if defined(INET) && defined(INET6)
2297                                         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) &&
2298                                             (net->ro._l_addr.sa.sa_family == AF_INET)) {
2299                                                 /* Must map the address */
2300                                                 in6_sin_2_v4mapsin6(&net->ro._l_addr.sin,
2301                                                     (struct sockaddr_in6 *)sas);
2302                                         } else {
2303                                                 memcpy(sas, &net->ro._l_addr, cpsz);
2304                                         }
2305 #else
2306                                         memcpy(sas, &net->ro._l_addr, cpsz);
2307 #endif
2308                                         ((struct sockaddr_in *)sas)->sin_port = stcb->rport;
2309
2310                                         sas = (struct sockaddr_storage *)((caddr_t)sas + cpsz);
2311                                         left -= cpsz;
2312                                         *optsize += cpsz;
2313                                 }
2314                                 SCTP_TCB_UNLOCK(stcb);
2315                         } else {
2316                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2317                                 error = ENOENT;
2318                         }
2319                         break;
2320                 }
2321         case SCTP_GET_LOCAL_ADDRESSES:
2322                 {
2323                         size_t limit, actual;
2324                         struct sockaddr_storage *sas;
2325                         struct sctp_getaddresses *saddr;
2326
2327                         SCTP_CHECK_AND_CAST(saddr, optval, struct sctp_getaddresses, *optsize);
2328                         SCTP_FIND_STCB(inp, stcb, saddr->sget_assoc_id);
2329
2330                         sas = (struct sockaddr_storage *)&saddr->addr[0];
2331                         limit = *optsize - sizeof(sctp_assoc_t);
2332                         actual = sctp_fill_up_addresses(inp, stcb, limit, sas);
2333                         if (stcb) {
2334                                 SCTP_TCB_UNLOCK(stcb);
2335                         }
2336                         *optsize = sizeof(struct sockaddr_storage) + actual;
2337                         break;
2338                 }
2339         case SCTP_PEER_ADDR_PARAMS:
2340                 {
2341                         struct sctp_paddrparams *paddrp;
2342                         struct sctp_nets *net;
2343                         struct sockaddr *addr;
2344
2345 #if defined(INET) && defined(INET6)
2346                         struct sockaddr_in sin_store;
2347
2348 #endif
2349
2350                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, *optsize);
2351                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
2352
2353 #if defined(INET) && defined(INET6)
2354                         if (paddrp->spp_address.ss_family == AF_INET6) {
2355                                 struct sockaddr_in6 *sin6;
2356
2357                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
2358                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2359                                         in6_sin6_2_sin(&sin_store, sin6);
2360                                         addr = (struct sockaddr *)&sin_store;
2361                                 } else {
2362                                         addr = (struct sockaddr *)&paddrp->spp_address;
2363                                 }
2364                         } else {
2365                                 addr = (struct sockaddr *)&paddrp->spp_address;
2366                         }
2367 #else
2368                         addr = (struct sockaddr *)&paddrp->spp_address;
2369 #endif
2370                         if (stcb != NULL) {
2371                                 net = sctp_findnet(stcb, addr);
2372                         } else {
2373                                 /*
2374                                  * We increment here since
2375                                  * sctp_findassociation_ep_addr() wil do a
2376                                  * decrement if it finds the stcb as long as
2377                                  * the locked tcb (last argument) is NOT a
2378                                  * TCB.. aka NULL.
2379                                  */
2380                                 net = NULL;
2381                                 SCTP_INP_INCR_REF(inp);
2382                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2383                                 if (stcb == NULL) {
2384                                         SCTP_INP_DECR_REF(inp);
2385                                 }
2386                         }
2387                         if ((stcb != NULL) && (net == NULL)) {
2388 #ifdef INET
2389                                 if (addr->sa_family == AF_INET) {
2390                                         struct sockaddr_in *sin;
2391
2392                                         sin = (struct sockaddr_in *)addr;
2393                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
2394                                                 error = EINVAL;
2395                                                 SCTP_TCB_UNLOCK(stcb);
2396                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2397                                                 break;
2398                                         }
2399                                 } else
2400 #endif
2401 #ifdef INET6
2402                                 if (addr->sa_family == AF_INET6) {
2403                                         struct sockaddr_in6 *sin6;
2404
2405                                         sin6 = (struct sockaddr_in6 *)addr;
2406                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
2407                                                 error = EINVAL;
2408                                                 SCTP_TCB_UNLOCK(stcb);
2409                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2410                                                 break;
2411                                         }
2412                                 } else
2413 #endif
2414                                 {
2415                                         error = EAFNOSUPPORT;
2416                                         SCTP_TCB_UNLOCK(stcb);
2417                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2418                                         break;
2419                                 }
2420                         }
2421                         if (stcb != NULL) {
2422                                 /* Applies to the specific association */
2423                                 paddrp->spp_flags = 0;
2424                                 if (net != NULL) {
2425                                         paddrp->spp_hbinterval = net->heart_beat_delay;
2426                                         paddrp->spp_pathmaxrxt = net->failure_threshold;
2427                                         paddrp->spp_pathmtu = net->mtu;
2428                                         switch (net->ro._l_addr.sa.sa_family) {
2429 #ifdef INET
2430                                         case AF_INET:
2431                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2432                                                 break;
2433 #endif
2434 #ifdef INET6
2435                                         case AF_INET6:
2436                                                 paddrp->spp_pathmtu -= SCTP_MIN_V4_OVERHEAD;
2437                                                 break;
2438 #endif
2439                                         default:
2440                                                 break;
2441                                         }
2442                                         /* get flags for HB */
2443                                         if (net->dest_state & SCTP_ADDR_NOHB) {
2444                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2445                                         } else {
2446                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2447                                         }
2448                                         /* get flags for PMTU */
2449                                         if (net->dest_state & SCTP_ADDR_NO_PMTUD) {
2450                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2451                                         } else {
2452                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2453                                         }
2454                                         if (net->dscp & 0x01) {
2455                                                 paddrp->spp_dscp = net->dscp & 0xfc;
2456                                                 paddrp->spp_flags |= SPP_DSCP;
2457                                         }
2458 #ifdef INET6
2459                                         if ((net->ro._l_addr.sa.sa_family == AF_INET6) &&
2460                                             (net->flowlabel & 0x80000000)) {
2461                                                 paddrp->spp_ipv6_flowlabel = net->flowlabel & 0x000fffff;
2462                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2463                                         }
2464 #endif
2465                                 } else {
2466                                         /*
2467                                          * No destination so return default
2468                                          * value
2469                                          */
2470                                         paddrp->spp_pathmaxrxt = stcb->asoc.def_net_failure;
2471                                         paddrp->spp_pathmtu = 0;
2472                                         if (stcb->asoc.default_dscp & 0x01) {
2473                                                 paddrp->spp_dscp = stcb->asoc.default_dscp & 0xfc;
2474                                                 paddrp->spp_flags |= SPP_DSCP;
2475                                         }
2476 #ifdef INET6
2477                                         if (stcb->asoc.default_flowlabel & 0x80000000) {
2478                                                 paddrp->spp_ipv6_flowlabel = stcb->asoc.default_flowlabel & 0x000fffff;
2479                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2480                                         }
2481 #endif
2482                                         /* default settings should be these */
2483                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2484                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2485                                         } else {
2486                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2487                                         }
2488                                         if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2489                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2490                                         } else {
2491                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2492                                         }
2493                                         paddrp->spp_hbinterval = stcb->asoc.heart_beat_delay;
2494                                 }
2495                                 paddrp->spp_assoc_id = sctp_get_associd(stcb);
2496                                 SCTP_TCB_UNLOCK(stcb);
2497                         } else {
2498                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2499                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2500                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
2501                                         /* Use endpoint defaults */
2502                                         SCTP_INP_RLOCK(inp);
2503                                         paddrp->spp_pathmaxrxt = inp->sctp_ep.def_net_failure;
2504                                         paddrp->spp_hbinterval = TICKS_TO_MSEC(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]);
2505                                         paddrp->spp_assoc_id = SCTP_FUTURE_ASSOC;
2506                                         /* get inp's default */
2507                                         if (inp->sctp_ep.default_dscp & 0x01) {
2508                                                 paddrp->spp_dscp = inp->sctp_ep.default_dscp & 0xfc;
2509                                                 paddrp->spp_flags |= SPP_DSCP;
2510                                         }
2511 #ifdef INET6
2512                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) &&
2513                                             (inp->sctp_ep.default_flowlabel & 0x80000000)) {
2514                                                 paddrp->spp_ipv6_flowlabel = inp->sctp_ep.default_flowlabel & 0x000fffff;
2515                                                 paddrp->spp_flags |= SPP_IPV6_FLOWLABEL;
2516                                         }
2517 #endif
2518                                         /* can't return this */
2519                                         paddrp->spp_pathmtu = 0;
2520
2521                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT)) {
2522                                                 paddrp->spp_flags |= SPP_HB_ENABLE;
2523                                         } else {
2524                                                 paddrp->spp_flags |= SPP_HB_DISABLE;
2525                                         }
2526                                         if (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD)) {
2527                                                 paddrp->spp_flags |= SPP_PMTUD_ENABLE;
2528                                         } else {
2529                                                 paddrp->spp_flags |= SPP_PMTUD_DISABLE;
2530                                         }
2531                                         SCTP_INP_RUNLOCK(inp);
2532                                 } else {
2533                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2534                                         error = EINVAL;
2535                                 }
2536                         }
2537                         if (error == 0) {
2538                                 *optsize = sizeof(struct sctp_paddrparams);
2539                         }
2540                         break;
2541                 }
2542         case SCTP_GET_PEER_ADDR_INFO:
2543                 {
2544                         struct sctp_paddrinfo *paddri;
2545                         struct sctp_nets *net;
2546                         struct sockaddr *addr;
2547
2548 #if defined(INET) && defined(INET6)
2549                         struct sockaddr_in sin_store;
2550
2551 #endif
2552
2553                         SCTP_CHECK_AND_CAST(paddri, optval, struct sctp_paddrinfo, *optsize);
2554                         SCTP_FIND_STCB(inp, stcb, paddri->spinfo_assoc_id);
2555
2556 #if defined(INET) && defined(INET6)
2557                         if (paddri->spinfo_address.ss_family == AF_INET6) {
2558                                 struct sockaddr_in6 *sin6;
2559
2560                                 sin6 = (struct sockaddr_in6 *)&paddri->spinfo_address;
2561                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
2562                                         in6_sin6_2_sin(&sin_store, sin6);
2563                                         addr = (struct sockaddr *)&sin_store;
2564                                 } else {
2565                                         addr = (struct sockaddr *)&paddri->spinfo_address;
2566                                 }
2567                         } else {
2568                                 addr = (struct sockaddr *)&paddri->spinfo_address;
2569                         }
2570 #else
2571                         addr = (struct sockaddr *)&paddri->spinfo_address;
2572 #endif
2573                         if (stcb != NULL) {
2574                                 net = sctp_findnet(stcb, addr);
2575                         } else {
2576                                 /*
2577                                  * We increment here since
2578                                  * sctp_findassociation_ep_addr() wil do a
2579                                  * decrement if it finds the stcb as long as
2580                                  * the locked tcb (last argument) is NOT a
2581                                  * TCB.. aka NULL.
2582                                  */
2583                                 net = NULL;
2584                                 SCTP_INP_INCR_REF(inp);
2585                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
2586                                 if (stcb == NULL) {
2587                                         SCTP_INP_DECR_REF(inp);
2588                                 }
2589                         }
2590
2591                         if ((stcb != NULL) && (net != NULL)) {
2592                                 if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2593                                         /* It's unconfirmed */
2594                                         paddri->spinfo_state = SCTP_UNCONFIRMED;
2595                                 } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2596                                         /* It's active */
2597                                         paddri->spinfo_state = SCTP_ACTIVE;
2598                                 } else {
2599                                         /* It's inactive */
2600                                         paddri->spinfo_state = SCTP_INACTIVE;
2601                                 }
2602                                 paddri->spinfo_cwnd = net->cwnd;
2603                                 paddri->spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2604                                 paddri->spinfo_rto = net->RTO;
2605                                 paddri->spinfo_assoc_id = sctp_get_associd(stcb);
2606                                 paddri->spinfo_mtu = net->mtu;
2607                                 switch (addr->sa_family) {
2608 #if defined(INET)
2609                                 case AF_INET:
2610                                         paddri->spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2611                                         break;
2612 #endif
2613 #if defined(INET6)
2614                                 case AF_INET6:
2615                                         paddri->spinfo_mtu -= SCTP_MIN_OVERHEAD;
2616                                         break;
2617 #endif
2618                                 default:
2619                                         break;
2620                                 }
2621                                 SCTP_TCB_UNLOCK(stcb);
2622                                 *optsize = sizeof(struct sctp_paddrinfo);
2623                         } else {
2624                                 if (stcb != NULL) {
2625                                         SCTP_TCB_UNLOCK(stcb);
2626                                 }
2627                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
2628                                 error = ENOENT;
2629                         }
2630                         break;
2631                 }
2632         case SCTP_PCB_STATUS:
2633                 {
2634                         struct sctp_pcbinfo *spcb;
2635
2636                         SCTP_CHECK_AND_CAST(spcb, optval, struct sctp_pcbinfo, *optsize);
2637                         sctp_fill_pcbinfo(spcb);
2638                         *optsize = sizeof(struct sctp_pcbinfo);
2639                         break;
2640                 }
2641         case SCTP_STATUS:
2642                 {
2643                         struct sctp_nets *net;
2644                         struct sctp_status *sstat;
2645
2646                         SCTP_CHECK_AND_CAST(sstat, optval, struct sctp_status, *optsize);
2647                         SCTP_FIND_STCB(inp, stcb, sstat->sstat_assoc_id);
2648
2649                         if (stcb == NULL) {
2650                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2651                                 error = EINVAL;
2652                                 break;
2653                         }
2654                         sstat->sstat_state = sctp_map_assoc_state(stcb->asoc.state);
2655                         sstat->sstat_assoc_id = sctp_get_associd(stcb);
2656                         sstat->sstat_rwnd = stcb->asoc.peers_rwnd;
2657                         sstat->sstat_unackdata = stcb->asoc.sent_queue_cnt;
2658                         /*
2659                          * We can't include chunks that have been passed to
2660                          * the socket layer. Only things in queue.
2661                          */
2662                         sstat->sstat_penddata = (stcb->asoc.cnt_on_reasm_queue +
2663                             stcb->asoc.cnt_on_all_streams);
2664
2665
2666                         sstat->sstat_instrms = stcb->asoc.streamincnt;
2667                         sstat->sstat_outstrms = stcb->asoc.streamoutcnt;
2668                         sstat->sstat_fragmentation_point = sctp_get_frag_point(stcb, &stcb->asoc);
2669                         memcpy(&sstat->sstat_primary.spinfo_address,
2670                             &stcb->asoc.primary_destination->ro._l_addr,
2671                             ((struct sockaddr *)(&stcb->asoc.primary_destination->ro._l_addr))->sa_len);
2672                         net = stcb->asoc.primary_destination;
2673                         ((struct sockaddr_in *)&sstat->sstat_primary.spinfo_address)->sin_port = stcb->rport;
2674                         /*
2675                          * Again the user can get info from sctp_constants.h
2676                          * for what the state of the network is.
2677                          */
2678                         if (net->dest_state & SCTP_ADDR_UNCONFIRMED) {
2679                                 /* It's unconfirmed */
2680                                 sstat->sstat_primary.spinfo_state = SCTP_UNCONFIRMED;
2681                         } else if (net->dest_state & SCTP_ADDR_REACHABLE) {
2682                                 /* It's active */
2683                                 sstat->sstat_primary.spinfo_state = SCTP_ACTIVE;
2684                         } else {
2685                                 /* It's inactive */
2686                                 sstat->sstat_primary.spinfo_state = SCTP_INACTIVE;
2687                         }
2688                         sstat->sstat_primary.spinfo_cwnd = net->cwnd;
2689                         sstat->sstat_primary.spinfo_srtt = net->lastsa >> SCTP_RTT_SHIFT;
2690                         sstat->sstat_primary.spinfo_rto = net->RTO;
2691                         sstat->sstat_primary.spinfo_mtu = net->mtu;
2692                         switch (stcb->asoc.primary_destination->ro._l_addr.sa.sa_family) {
2693 #if defined(INET)
2694                         case AF_INET:
2695                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_V4_OVERHEAD;
2696                                 break;
2697 #endif
2698 #if defined(INET6)
2699                         case AF_INET6:
2700                                 sstat->sstat_primary.spinfo_mtu -= SCTP_MIN_OVERHEAD;
2701                                 break;
2702 #endif
2703                         default:
2704                                 break;
2705                         }
2706                         sstat->sstat_primary.spinfo_assoc_id = sctp_get_associd(stcb);
2707                         SCTP_TCB_UNLOCK(stcb);
2708                         *optsize = sizeof(struct sctp_status);
2709                         break;
2710                 }
2711         case SCTP_RTOINFO:
2712                 {
2713                         struct sctp_rtoinfo *srto;
2714
2715                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, *optsize);
2716                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
2717
2718                         if (stcb) {
2719                                 srto->srto_initial = stcb->asoc.initial_rto;
2720                                 srto->srto_max = stcb->asoc.maxrto;
2721                                 srto->srto_min = stcb->asoc.minrto;
2722                                 SCTP_TCB_UNLOCK(stcb);
2723                         } else {
2724                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2725                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2726                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
2727                                         SCTP_INP_RLOCK(inp);
2728                                         srto->srto_initial = inp->sctp_ep.initial_rto;
2729                                         srto->srto_max = inp->sctp_ep.sctp_maxrto;
2730                                         srto->srto_min = inp->sctp_ep.sctp_minrto;
2731                                         SCTP_INP_RUNLOCK(inp);
2732                                 } else {
2733                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2734                                         error = EINVAL;
2735                                 }
2736                         }
2737                         if (error == 0) {
2738                                 *optsize = sizeof(struct sctp_rtoinfo);
2739                         }
2740                         break;
2741                 }
2742         case SCTP_TIMEOUTS:
2743                 {
2744                         struct sctp_timeouts *stimo;
2745
2746                         SCTP_CHECK_AND_CAST(stimo, optval, struct sctp_timeouts, *optsize);
2747                         SCTP_FIND_STCB(inp, stcb, stimo->stimo_assoc_id);
2748
2749                         if (stcb) {
2750                                 stimo->stimo_init = stcb->asoc.timoinit;
2751                                 stimo->stimo_data = stcb->asoc.timodata;
2752                                 stimo->stimo_sack = stcb->asoc.timosack;
2753                                 stimo->stimo_shutdown = stcb->asoc.timoshutdown;
2754                                 stimo->stimo_heartbeat = stcb->asoc.timoheartbeat;
2755                                 stimo->stimo_cookie = stcb->asoc.timocookie;
2756                                 stimo->stimo_shutdownack = stcb->asoc.timoshutdownack;
2757                                 SCTP_TCB_UNLOCK(stcb);
2758                                 *optsize = sizeof(struct sctp_timeouts);
2759                         } else {
2760                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2761                                 error = EINVAL;
2762                         }
2763                         break;
2764                 }
2765         case SCTP_ASSOCINFO:
2766                 {
2767                         struct sctp_assocparams *sasoc;
2768
2769                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, *optsize);
2770                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
2771
2772                         if (stcb) {
2773                                 sasoc->sasoc_cookie_life = TICKS_TO_MSEC(stcb->asoc.cookie_life);
2774                                 sasoc->sasoc_asocmaxrxt = stcb->asoc.max_send_times;
2775                                 sasoc->sasoc_number_peer_destinations = stcb->asoc.numnets;
2776                                 sasoc->sasoc_peer_rwnd = stcb->asoc.peers_rwnd;
2777                                 sasoc->sasoc_local_rwnd = stcb->asoc.my_rwnd;
2778                                 SCTP_TCB_UNLOCK(stcb);
2779                         } else {
2780                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2781                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2782                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
2783                                         SCTP_INP_RLOCK(inp);
2784                                         sasoc->sasoc_cookie_life = TICKS_TO_MSEC(inp->sctp_ep.def_cookie_life);
2785                                         sasoc->sasoc_asocmaxrxt = inp->sctp_ep.max_send_times;
2786                                         sasoc->sasoc_number_peer_destinations = 0;
2787                                         sasoc->sasoc_peer_rwnd = 0;
2788                                         sasoc->sasoc_local_rwnd = sbspace(&inp->sctp_socket->so_rcv);
2789                                         SCTP_INP_RUNLOCK(inp);
2790                                 } else {
2791                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2792                                         error = EINVAL;
2793                                 }
2794                         }
2795                         if (error == 0) {
2796                                 *optsize = sizeof(struct sctp_assocparams);
2797                         }
2798                         break;
2799                 }
2800         case SCTP_DEFAULT_SEND_PARAM:
2801                 {
2802                         struct sctp_sndrcvinfo *s_info;
2803
2804                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, *optsize);
2805                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
2806
2807                         if (stcb) {
2808                                 memcpy(s_info, &stcb->asoc.def_send, sizeof(stcb->asoc.def_send));
2809                                 SCTP_TCB_UNLOCK(stcb);
2810                         } else {
2811                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2812                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2813                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC)) {
2814                                         SCTP_INP_RLOCK(inp);
2815                                         memcpy(s_info, &inp->def_send, sizeof(inp->def_send));
2816                                         SCTP_INP_RUNLOCK(inp);
2817                                 } else {
2818                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2819                                         error = EINVAL;
2820                                 }
2821                         }
2822                         if (error == 0) {
2823                                 *optsize = sizeof(struct sctp_sndrcvinfo);
2824                         }
2825                         break;
2826                 }
2827         case SCTP_INITMSG:
2828                 {
2829                         struct sctp_initmsg *sinit;
2830
2831                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, *optsize);
2832                         SCTP_INP_RLOCK(inp);
2833                         sinit->sinit_num_ostreams = inp->sctp_ep.pre_open_stream_count;
2834                         sinit->sinit_max_instreams = inp->sctp_ep.max_open_streams_intome;
2835                         sinit->sinit_max_attempts = inp->sctp_ep.max_init_times;
2836                         sinit->sinit_max_init_timeo = inp->sctp_ep.initial_init_rto_max;
2837                         SCTP_INP_RUNLOCK(inp);
2838                         *optsize = sizeof(struct sctp_initmsg);
2839                         break;
2840                 }
2841         case SCTP_PRIMARY_ADDR:
2842                 /* we allow a "get" operation on this */
2843                 {
2844                         struct sctp_setprim *ssp;
2845
2846                         SCTP_CHECK_AND_CAST(ssp, optval, struct sctp_setprim, *optsize);
2847                         SCTP_FIND_STCB(inp, stcb, ssp->ssp_assoc_id);
2848
2849                         if (stcb) {
2850                                 union sctp_sockstore *addr;
2851
2852                                 addr = &stcb->asoc.primary_destination->ro._l_addr;
2853                                 switch (addr->sa.sa_family) {
2854 #ifdef INET
2855                                 case AF_INET:
2856 #ifdef INET6
2857                                         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) {
2858                                                 in6_sin_2_v4mapsin6(&addr->sin,
2859                                                     (struct sockaddr_in6 *)&ssp->ssp_addr);
2860                                         } else {
2861                                                 memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2862                                         }
2863 #else
2864                                         memcpy(&ssp->ssp_addr, &addr->sin, sizeof(struct sockaddr_in));
2865 #endif
2866                                         break;
2867 #endif
2868 #ifdef INET6
2869                                 case AF_INET6:
2870                                         memcpy(&ssp->ssp_addr, &addr->sin6, sizeof(struct sockaddr_in6));
2871                                         break;
2872 #endif
2873                                 default:
2874                                         break;
2875                                 }
2876                                 SCTP_TCB_UNLOCK(stcb);
2877                                 *optsize = sizeof(struct sctp_setprim);
2878                         } else {
2879                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2880                                 error = EINVAL;
2881                         }
2882                         break;
2883                 }
2884         case SCTP_HMAC_IDENT:
2885                 {
2886                         struct sctp_hmacalgo *shmac;
2887                         sctp_hmaclist_t *hmaclist;
2888                         uint32_t size;
2889                         int i;
2890
2891                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, *optsize);
2892
2893                         SCTP_INP_RLOCK(inp);
2894                         hmaclist = inp->sctp_ep.local_hmacs;
2895                         if (hmaclist == NULL) {
2896                                 /* no HMACs to return */
2897                                 *optsize = sizeof(*shmac);
2898                                 SCTP_INP_RUNLOCK(inp);
2899                                 break;
2900                         }
2901                         /* is there room for all of the hmac ids? */
2902                         size = sizeof(*shmac) + (hmaclist->num_algo *
2903                             sizeof(shmac->shmac_idents[0]));
2904                         if ((size_t)(*optsize) < size) {
2905                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2906                                 error = EINVAL;
2907                                 SCTP_INP_RUNLOCK(inp);
2908                                 break;
2909                         }
2910                         /* copy in the list */
2911                         shmac->shmac_number_of_idents = hmaclist->num_algo;
2912                         for (i = 0; i < hmaclist->num_algo; i++) {
2913                                 shmac->shmac_idents[i] = hmaclist->hmac[i];
2914                         }
2915                         SCTP_INP_RUNLOCK(inp);
2916                         *optsize = size;
2917                         break;
2918                 }
2919         case SCTP_AUTH_ACTIVE_KEY:
2920                 {
2921                         struct sctp_authkeyid *scact;
2922
2923                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, *optsize);
2924                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
2925
2926                         if (stcb) {
2927                                 /* get the active key on the assoc */
2928                                 scact->scact_keynumber = stcb->asoc.authinfo.active_keyid;
2929                                 SCTP_TCB_UNLOCK(stcb);
2930                         } else {
2931                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2932                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2933                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC)) {
2934                                         /* get the endpoint active key */
2935                                         SCTP_INP_RLOCK(inp);
2936                                         scact->scact_keynumber = inp->sctp_ep.default_keyid;
2937                                         SCTP_INP_RUNLOCK(inp);
2938                                 } else {
2939                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2940                                         error = EINVAL;
2941                                 }
2942                         }
2943                         if (error == 0) {
2944                                 *optsize = sizeof(struct sctp_authkeyid);
2945                         }
2946                         break;
2947                 }
2948         case SCTP_LOCAL_AUTH_CHUNKS:
2949                 {
2950                         struct sctp_authchunks *sac;
2951                         sctp_auth_chklist_t *chklist = NULL;
2952                         size_t size = 0;
2953
2954                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
2955                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
2956
2957                         if (stcb) {
2958                                 /* get off the assoc */
2959                                 chklist = stcb->asoc.local_auth_chunks;
2960                                 /* is there enough space? */
2961                                 size = sctp_auth_get_chklist_size(chklist);
2962                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2963                                         error = EINVAL;
2964                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2965                                 } else {
2966                                         /* copy in the chunks */
2967                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2968                                         sac->gauth_number_of_chunks = (uint32_t) size;
2969                                         *optsize = sizeof(struct sctp_authchunks) + size;
2970                                 }
2971                                 SCTP_TCB_UNLOCK(stcb);
2972                         } else {
2973                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
2974                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
2975                                     (sac->gauth_assoc_id == SCTP_FUTURE_ASSOC)) {
2976                                         /* get off the endpoint */
2977                                         SCTP_INP_RLOCK(inp);
2978                                         chklist = inp->sctp_ep.local_auth_chunks;
2979                                         /* is there enough space? */
2980                                         size = sctp_auth_get_chklist_size(chklist);
2981                                         if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
2982                                                 error = EINVAL;
2983                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
2984                                         } else {
2985                                                 /* copy in the chunks */
2986                                                 (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
2987                                                 sac->gauth_number_of_chunks = (uint32_t) size;
2988                                                 *optsize = sizeof(struct sctp_authchunks) + size;
2989                                         }
2990                                         SCTP_INP_RUNLOCK(inp);
2991                                 } else {
2992                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
2993                                         error = EINVAL;
2994                                 }
2995                         }
2996                         break;
2997                 }
2998         case SCTP_PEER_AUTH_CHUNKS:
2999                 {
3000                         struct sctp_authchunks *sac;
3001                         sctp_auth_chklist_t *chklist = NULL;
3002                         size_t size = 0;
3003
3004                         SCTP_CHECK_AND_CAST(sac, optval, struct sctp_authchunks, *optsize);
3005                         SCTP_FIND_STCB(inp, stcb, sac->gauth_assoc_id);
3006
3007                         if (stcb) {
3008                                 /* get off the assoc */
3009                                 chklist = stcb->asoc.peer_auth_chunks;
3010                                 /* is there enough space? */
3011                                 size = sctp_auth_get_chklist_size(chklist);
3012                                 if (*optsize < (sizeof(struct sctp_authchunks) + size)) {
3013                                         error = EINVAL;
3014                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3015                                 } else {
3016                                         /* copy in the chunks */
3017                                         (void)sctp_serialize_auth_chunks(chklist, sac->gauth_chunks);
3018                                         sac->gauth_number_of_chunks = (uint32_t) size;
3019                                         *optsize = sizeof(struct sctp_authchunks) + size;
3020                                 }
3021                                 SCTP_TCB_UNLOCK(stcb);
3022                         } else {
3023                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
3024                                 error = ENOENT;
3025                         }
3026                         break;
3027                 }
3028         case SCTP_EVENT:
3029                 {
3030                         struct sctp_event *event;
3031                         uint32_t event_type;
3032
3033                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, *optsize);
3034                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
3035
3036                         switch (event->se_type) {
3037                         case SCTP_ASSOC_CHANGE:
3038                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
3039                                 break;
3040                         case SCTP_PEER_ADDR_CHANGE:
3041                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
3042                                 break;
3043                         case SCTP_REMOTE_ERROR:
3044                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
3045                                 break;
3046                         case SCTP_SEND_FAILED:
3047                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
3048                                 break;
3049                         case SCTP_SHUTDOWN_EVENT:
3050                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
3051                                 break;
3052                         case SCTP_ADAPTATION_INDICATION:
3053                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
3054                                 break;
3055                         case SCTP_PARTIAL_DELIVERY_EVENT:
3056                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
3057                                 break;
3058                         case SCTP_AUTHENTICATION_EVENT:
3059                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
3060                                 break;
3061                         case SCTP_STREAM_RESET_EVENT:
3062                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
3063                                 break;
3064                         case SCTP_SENDER_DRY_EVENT:
3065                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
3066                                 break;
3067                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
3068                                 event_type = 0;
3069                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
3070                                 error = ENOTSUP;
3071                                 break;
3072                         case SCTP_ASSOC_RESET_EVENT:
3073                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
3074                                 break;
3075                         case SCTP_STREAM_CHANGE_EVENT:
3076                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
3077                                 break;
3078                         case SCTP_SEND_FAILED_EVENT:
3079                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
3080                                 break;
3081                         default:
3082                                 event_type = 0;
3083                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3084                                 error = EINVAL;
3085                                 break;
3086                         }
3087                         if (event_type > 0) {
3088                                 if (stcb) {
3089                                         event->se_on = sctp_stcb_is_feature_on(inp, stcb, event_type);
3090                                         SCTP_TCB_UNLOCK(stcb);
3091                                 } else {
3092                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3093                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3094                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC)) {
3095                                                 SCTP_INP_RLOCK(inp);
3096                                                 event->se_on = sctp_is_feature_on(inp, event_type);
3097                                                 SCTP_INP_RUNLOCK(inp);
3098                                         } else {
3099                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3100                                                 error = EINVAL;
3101                                         }
3102                                 }
3103                         }
3104                         if (error == 0) {
3105                                 *optsize = sizeof(struct sctp_event);
3106                         }
3107                         break;
3108                 }
3109         case SCTP_RECVRCVINFO:
3110                 {
3111                         int onoff;
3112
3113                         if (*optsize < sizeof(int)) {
3114                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3115                                 error = EINVAL;
3116                         } else {
3117                                 SCTP_INP_RLOCK(inp);
3118                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
3119                                 SCTP_INP_RUNLOCK(inp);
3120                         }
3121                         if (error == 0) {
3122                                 /* return the option value */
3123                                 *(int *)optval = onoff;
3124                                 *optsize = sizeof(int);
3125                         }
3126                         break;
3127                 }
3128         case SCTP_RECVNXTINFO:
3129                 {
3130                         int onoff;
3131
3132                         if (*optsize < sizeof(int)) {
3133                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3134                                 error = EINVAL;
3135                         } else {
3136                                 SCTP_INP_RLOCK(inp);
3137                                 onoff = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
3138                                 SCTP_INP_RUNLOCK(inp);
3139                         }
3140                         if (error == 0) {
3141                                 /* return the option value */
3142                                 *(int *)optval = onoff;
3143                                 *optsize = sizeof(int);
3144                         }
3145                         break;
3146                 }
3147         case SCTP_DEFAULT_SNDINFO:
3148                 {
3149                         struct sctp_sndinfo *info;
3150
3151                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, *optsize);
3152                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
3153
3154                         if (stcb) {
3155                                 info->snd_sid = stcb->asoc.def_send.sinfo_stream;
3156                                 info->snd_flags = stcb->asoc.def_send.sinfo_flags;
3157                                 info->snd_flags &= 0xfff0;
3158                                 info->snd_ppid = stcb->asoc.def_send.sinfo_ppid;
3159                                 info->snd_context = stcb->asoc.def_send.sinfo_context;
3160                                 SCTP_TCB_UNLOCK(stcb);
3161                         } else {
3162                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3163                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3164                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC)) {
3165                                         SCTP_INP_RLOCK(inp);
3166                                         info->snd_sid = inp->def_send.sinfo_stream;
3167                                         info->snd_flags = inp->def_send.sinfo_flags;
3168                                         info->snd_flags &= 0xfff0;
3169                                         info->snd_ppid = inp->def_send.sinfo_ppid;
3170                                         info->snd_context = inp->def_send.sinfo_context;
3171                                         SCTP_INP_RUNLOCK(inp);
3172                                 } else {
3173                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3174                                         error = EINVAL;
3175                                 }
3176                         }
3177                         if (error == 0) {
3178                                 *optsize = sizeof(struct sctp_sndinfo);
3179                         }
3180                         break;
3181                 }
3182         case SCTP_DEFAULT_PRINFO:
3183                 {
3184                         struct sctp_default_prinfo *info;
3185
3186                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, *optsize);
3187                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
3188
3189                         if (stcb) {
3190                                 info->pr_policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
3191                                 info->pr_value = stcb->asoc.def_send.sinfo_timetolive;
3192                                 SCTP_TCB_UNLOCK(stcb);
3193                         } else {
3194                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3195                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3196                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC)) {
3197                                         SCTP_INP_RLOCK(inp);
3198                                         info->pr_policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
3199                                         info->pr_value = inp->def_send.sinfo_timetolive;
3200                                         SCTP_INP_RUNLOCK(inp);
3201                                 } else {
3202                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3203                                         error = EINVAL;
3204                                 }
3205                         }
3206                         if (error == 0) {
3207                                 *optsize = sizeof(struct sctp_default_prinfo);
3208                         }
3209                         break;
3210                 }
3211         case SCTP_PEER_ADDR_THLDS:
3212                 {
3213                         struct sctp_paddrthlds *thlds;
3214                         struct sctp_nets *net;
3215                         struct sockaddr *addr;
3216
3217 #if defined(INET) && defined(INET6)
3218                         struct sockaddr_in sin_store;
3219
3220 #endif
3221
3222                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, *optsize);
3223                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
3224
3225 #if defined(INET) && defined(INET6)
3226                         if (thlds->spt_address.ss_family == AF_INET6) {
3227                                 struct sockaddr_in6 *sin6;
3228
3229                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
3230                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3231                                         in6_sin6_2_sin(&sin_store, sin6);
3232                                         addr = (struct sockaddr *)&sin_store;
3233                                 } else {
3234                                         addr = (struct sockaddr *)&thlds->spt_address;
3235                                 }
3236                         } else {
3237                                 addr = (struct sockaddr *)&thlds->spt_address;
3238                         }
3239 #else
3240                         addr = (struct sockaddr *)&thlds->spt_address;
3241 #endif
3242                         if (stcb != NULL) {
3243                                 net = sctp_findnet(stcb, addr);
3244                         } else {
3245                                 /*
3246                                  * We increment here since
3247                                  * sctp_findassociation_ep_addr() wil do a
3248                                  * decrement if it finds the stcb as long as
3249                                  * the locked tcb (last argument) is NOT a
3250                                  * TCB.. aka NULL.
3251                                  */
3252                                 net = NULL;
3253                                 SCTP_INP_INCR_REF(inp);
3254                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3255                                 if (stcb == NULL) {
3256                                         SCTP_INP_DECR_REF(inp);
3257                                 }
3258                         }
3259                         if ((stcb != NULL) && (net == NULL)) {
3260 #ifdef INET
3261                                 if (addr->sa_family == AF_INET) {
3262                                         struct sockaddr_in *sin;
3263
3264                                         sin = (struct sockaddr_in *)addr;
3265                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3266                                                 error = EINVAL;
3267                                                 SCTP_TCB_UNLOCK(stcb);
3268                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3269                                                 break;
3270                                         }
3271                                 } else
3272 #endif
3273 #ifdef INET6
3274                                 if (addr->sa_family == AF_INET6) {
3275                                         struct sockaddr_in6 *sin6;
3276
3277                                         sin6 = (struct sockaddr_in6 *)addr;
3278                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3279                                                 error = EINVAL;
3280                                                 SCTP_TCB_UNLOCK(stcb);
3281                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3282                                                 break;
3283                                         }
3284                                 } else
3285 #endif
3286                                 {
3287                                         error = EAFNOSUPPORT;
3288                                         SCTP_TCB_UNLOCK(stcb);
3289                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3290                                         break;
3291                                 }
3292                         }
3293                         if (stcb != NULL) {
3294                                 if (net != NULL) {
3295                                         thlds->spt_pathmaxrxt = net->failure_threshold;
3296                                         thlds->spt_pathpfthld = net->pf_threshold;
3297                                 } else {
3298                                         thlds->spt_pathmaxrxt = stcb->asoc.def_net_failure;
3299                                         thlds->spt_pathpfthld = stcb->asoc.def_net_pf_threshold;
3300                                 }
3301                                 thlds->spt_assoc_id = sctp_get_associd(stcb);
3302                                 SCTP_TCB_UNLOCK(stcb);
3303                         } else {
3304                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3305                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3306                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
3307                                         /* Use endpoint defaults */
3308                                         SCTP_INP_RLOCK(inp);
3309                                         thlds->spt_pathmaxrxt = inp->sctp_ep.def_net_failure;
3310                                         thlds->spt_pathpfthld = inp->sctp_ep.def_net_pf_threshold;
3311                                         SCTP_INP_RUNLOCK(inp);
3312                                 } else {
3313                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3314                                         error = EINVAL;
3315                                 }
3316                         }
3317                         if (error == 0) {
3318                                 *optsize = sizeof(struct sctp_paddrthlds);
3319                         }
3320                         break;
3321                 }
3322         case SCTP_REMOTE_UDP_ENCAPS_PORT:
3323                 {
3324                         struct sctp_udpencaps *encaps;
3325                         struct sctp_nets *net;
3326                         struct sockaddr *addr;
3327
3328 #if defined(INET) && defined(INET6)
3329                         struct sockaddr_in sin_store;
3330
3331 #endif
3332
3333                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, *optsize);
3334                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
3335
3336 #if defined(INET) && defined(INET6)
3337                         if (encaps->sue_address.ss_family == AF_INET6) {
3338                                 struct sockaddr_in6 *sin6;
3339
3340                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
3341                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
3342                                         in6_sin6_2_sin(&sin_store, sin6);
3343                                         addr = (struct sockaddr *)&sin_store;
3344                                 } else {
3345                                         addr = (struct sockaddr *)&encaps->sue_address;
3346                                 }
3347                         } else {
3348                                 addr = (struct sockaddr *)&encaps->sue_address;
3349                         }
3350 #else
3351                         addr = (struct sockaddr *)&encaps->sue_address;
3352 #endif
3353                         if (stcb) {
3354                                 net = sctp_findnet(stcb, addr);
3355                         } else {
3356                                 /*
3357                                  * We increment here since
3358                                  * sctp_findassociation_ep_addr() wil do a
3359                                  * decrement if it finds the stcb as long as
3360                                  * the locked tcb (last argument) is NOT a
3361                                  * TCB.. aka NULL.
3362                                  */
3363                                 net = NULL;
3364                                 SCTP_INP_INCR_REF(inp);
3365                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
3366                                 if (stcb == NULL) {
3367                                         SCTP_INP_DECR_REF(inp);
3368                                 }
3369                         }
3370                         if ((stcb != NULL) && (net == NULL)) {
3371 #ifdef INET
3372                                 if (addr->sa_family == AF_INET) {
3373                                         struct sockaddr_in *sin;
3374
3375                                         sin = (struct sockaddr_in *)addr;
3376                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
3377                                                 error = EINVAL;
3378                                                 SCTP_TCB_UNLOCK(stcb);
3379                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3380                                                 break;
3381                                         }
3382                                 } else
3383 #endif
3384 #ifdef INET6
3385                                 if (addr->sa_family == AF_INET6) {
3386                                         struct sockaddr_in6 *sin6;
3387
3388                                         sin6 = (struct sockaddr_in6 *)addr;
3389                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
3390                                                 error = EINVAL;
3391                                                 SCTP_TCB_UNLOCK(stcb);
3392                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3393                                                 break;
3394                                         }
3395                                 } else
3396 #endif
3397                                 {
3398                                         error = EAFNOSUPPORT;
3399                                         SCTP_TCB_UNLOCK(stcb);
3400                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
3401                                         break;
3402                                 }
3403                         }
3404                         if (stcb != NULL) {
3405                                 if (net) {
3406                                         encaps->sue_port = net->port;
3407                                 } else {
3408                                         encaps->sue_port = stcb->asoc.port;
3409                                 }
3410                                 SCTP_TCB_UNLOCK(stcb);
3411                         } else {
3412                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3413                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3414                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
3415                                         SCTP_INP_RLOCK(inp);
3416                                         encaps->sue_port = inp->sctp_ep.port;
3417                                         SCTP_INP_RUNLOCK(inp);
3418                                 } else {
3419                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3420                                         error = EINVAL;
3421                                 }
3422                         }
3423                         if (error == 0) {
3424                                 *optsize = sizeof(struct sctp_udpencaps);
3425                         }
3426                         break;
3427                 }
3428         case SCTP_ECN_SUPPORTED:
3429                 {
3430                         struct sctp_assoc_value *av;
3431
3432                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3433                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3434
3435                         if (stcb) {
3436                                 av->assoc_value = stcb->asoc.ecn_supported;
3437                                 SCTP_TCB_UNLOCK(stcb);
3438                         } else {
3439                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3440                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3441                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3442                                         SCTP_INP_RLOCK(inp);
3443                                         av->assoc_value = inp->ecn_supported;
3444                                         SCTP_INP_RUNLOCK(inp);
3445                                 } else {
3446                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3447                                         error = EINVAL;
3448                                 }
3449                         }
3450                         if (error == 0) {
3451                                 *optsize = sizeof(struct sctp_assoc_value);
3452                         }
3453                         break;
3454                 }
3455         case SCTP_PR_SUPPORTED:
3456                 {
3457                         struct sctp_assoc_value *av;
3458
3459                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3460                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3461
3462                         if (stcb) {
3463                                 av->assoc_value = stcb->asoc.prsctp_supported;
3464                                 SCTP_TCB_UNLOCK(stcb);
3465                         } else {
3466                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3467                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3468                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3469                                         SCTP_INP_RLOCK(inp);
3470                                         av->assoc_value = inp->prsctp_supported;
3471                                         SCTP_INP_RUNLOCK(inp);
3472                                 } else {
3473                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3474                                         error = EINVAL;
3475                                 }
3476                         }
3477                         if (error == 0) {
3478                                 *optsize = sizeof(struct sctp_assoc_value);
3479                         }
3480                         break;
3481                 }
3482         case SCTP_AUTH_SUPPORTED:
3483                 {
3484                         struct sctp_assoc_value *av;
3485
3486                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3487                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3488
3489                         if (stcb) {
3490                                 av->assoc_value = stcb->asoc.auth_supported;
3491                                 SCTP_TCB_UNLOCK(stcb);
3492                         } else {
3493                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3494                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3495                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3496                                         SCTP_INP_RLOCK(inp);
3497                                         av->assoc_value = inp->auth_supported;
3498                                         SCTP_INP_RUNLOCK(inp);
3499                                 } else {
3500                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3501                                         error = EINVAL;
3502                                 }
3503                         }
3504                         if (error == 0) {
3505                                 *optsize = sizeof(struct sctp_assoc_value);
3506                         }
3507                         break;
3508                 }
3509         case SCTP_ASCONF_SUPPORTED:
3510                 {
3511                         struct sctp_assoc_value *av;
3512
3513                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3514                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3515
3516                         if (stcb) {
3517                                 av->assoc_value = stcb->asoc.asconf_supported;
3518                                 SCTP_TCB_UNLOCK(stcb);
3519                         } else {
3520                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3521                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3522                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3523                                         SCTP_INP_RLOCK(inp);
3524                                         av->assoc_value = inp->asconf_supported;
3525                                         SCTP_INP_RUNLOCK(inp);
3526                                 } else {
3527                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3528                                         error = EINVAL;
3529                                 }
3530                         }
3531                         if (error == 0) {
3532                                 *optsize = sizeof(struct sctp_assoc_value);
3533                         }
3534                         break;
3535                 }
3536         case SCTP_RECONFIG_SUPPORTED:
3537                 {
3538                         struct sctp_assoc_value *av;
3539
3540                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3541                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3542
3543                         if (stcb) {
3544                                 av->assoc_value = stcb->asoc.reconfig_supported;
3545                                 SCTP_TCB_UNLOCK(stcb);
3546                         } else {
3547                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3548                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3549                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3550                                         SCTP_INP_RLOCK(inp);
3551                                         av->assoc_value = inp->reconfig_supported;
3552                                         SCTP_INP_RUNLOCK(inp);
3553                                 } else {
3554                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3555                                         error = EINVAL;
3556                                 }
3557                         }
3558                         if (error == 0) {
3559                                 *optsize = sizeof(struct sctp_assoc_value);
3560                         }
3561                         break;
3562                 }
3563         case SCTP_NRSACK_SUPPORTED:
3564                 {
3565                         struct sctp_assoc_value *av;
3566
3567                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3568                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3569
3570                         if (stcb) {
3571                                 av->assoc_value = stcb->asoc.nrsack_supported;
3572                                 SCTP_TCB_UNLOCK(stcb);
3573                         } else {
3574                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3575                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3576                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3577                                         SCTP_INP_RLOCK(inp);
3578                                         av->assoc_value = inp->nrsack_supported;
3579                                         SCTP_INP_RUNLOCK(inp);
3580                                 } else {
3581                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3582                                         error = EINVAL;
3583                                 }
3584                         }
3585                         if (error == 0) {
3586                                 *optsize = sizeof(struct sctp_assoc_value);
3587                         }
3588                         break;
3589                 }
3590         case SCTP_PKTDROP_SUPPORTED:
3591                 {
3592                         struct sctp_assoc_value *av;
3593
3594                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3595                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3596
3597                         if (stcb) {
3598                                 av->assoc_value = stcb->asoc.pktdrop_supported;
3599                                 SCTP_TCB_UNLOCK(stcb);
3600                         } else {
3601                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3602                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3603                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3604                                         SCTP_INP_RLOCK(inp);
3605                                         av->assoc_value = inp->pktdrop_supported;
3606                                         SCTP_INP_RUNLOCK(inp);
3607                                 } else {
3608                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3609                                         error = EINVAL;
3610                                 }
3611                         }
3612                         if (error == 0) {
3613                                 *optsize = sizeof(struct sctp_assoc_value);
3614                         }
3615                         break;
3616                 }
3617         case SCTP_ENABLE_STREAM_RESET:
3618                 {
3619                         struct sctp_assoc_value *av;
3620
3621                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3622                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3623
3624                         if (stcb) {
3625                                 av->assoc_value = (uint32_t) stcb->asoc.local_strreset_support;
3626                                 SCTP_TCB_UNLOCK(stcb);
3627                         } else {
3628                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3629                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3630                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3631                                         SCTP_INP_RLOCK(inp);
3632                                         av->assoc_value = (uint32_t) inp->local_strreset_support;
3633                                         SCTP_INP_RUNLOCK(inp);
3634                                 } else {
3635                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3636                                         error = EINVAL;
3637                                 }
3638                         }
3639                         if (error == 0) {
3640                                 *optsize = sizeof(struct sctp_assoc_value);
3641                         }
3642                         break;
3643                 }
3644         case SCTP_PR_STREAM_STATUS:
3645                 {
3646                         struct sctp_prstatus *sprstat;
3647                         uint16_t sid;
3648                         uint16_t policy;
3649
3650                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3651                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3652
3653                         sid = sprstat->sprstat_sid;
3654                         policy = sprstat->sprstat_policy;
3655 #if defined(SCTP_DETAILED_STR_STATS)
3656                         if ((stcb != NULL) &&
3657                             (sid < stcb->asoc.streamoutcnt) &&
3658                             (policy != SCTP_PR_SCTP_NONE) &&
3659                             ((policy <= SCTP_PR_SCTP_MAX) ||
3660                             (policy == SCTP_PR_SCTP_ALL))) {
3661                                 if (policy == SCTP_PR_SCTP_ALL) {
3662                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3663                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3664                                 } else {
3665                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[policy];
3666                                         sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[policy];
3667                                 }
3668 #else
3669                         if ((stcb != NULL) &&
3670                             (sid < stcb->asoc.streamoutcnt) &&
3671                             (policy == SCTP_PR_SCTP_ALL)) {
3672                                 sprstat->sprstat_abandoned_unsent = stcb->asoc.strmout[sid].abandoned_unsent[0];
3673                                 sprstat->sprstat_abandoned_sent = stcb->asoc.strmout[sid].abandoned_sent[0];
3674 #endif
3675                                 SCTP_TCB_UNLOCK(stcb);
3676                                 *optsize = sizeof(struct sctp_prstatus);
3677                         } else {
3678                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3679                                 error = EINVAL;
3680                         }
3681                         break;
3682                 }
3683         case SCTP_PR_ASSOC_STATUS:
3684                 {
3685                         struct sctp_prstatus *sprstat;
3686                         uint16_t policy;
3687
3688                         SCTP_CHECK_AND_CAST(sprstat, optval, struct sctp_prstatus, *optsize);
3689                         SCTP_FIND_STCB(inp, stcb, sprstat->sprstat_assoc_id);
3690
3691                         policy = sprstat->sprstat_policy;
3692                         if ((stcb != NULL) &&
3693                             (policy != SCTP_PR_SCTP_NONE) &&
3694                             ((policy <= SCTP_PR_SCTP_MAX) ||
3695                             (policy == SCTP_PR_SCTP_ALL))) {
3696                                 if (policy == SCTP_PR_SCTP_ALL) {
3697                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[0];
3698                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[0];
3699                                 } else {
3700                                         sprstat->sprstat_abandoned_unsent = stcb->asoc.abandoned_unsent[policy];
3701                                         sprstat->sprstat_abandoned_sent = stcb->asoc.abandoned_sent[policy];
3702                                 }
3703                                 SCTP_TCB_UNLOCK(stcb);
3704                                 *optsize = sizeof(struct sctp_prstatus);
3705                         } else {
3706                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3707                                 error = EINVAL;
3708                         }
3709                         break;
3710                 }
3711         case SCTP_MAX_CWND:
3712                 {
3713                         struct sctp_assoc_value *av;
3714
3715                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, *optsize);
3716                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3717
3718                         if (stcb) {
3719                                 av->assoc_value = stcb->asoc.max_cwnd;
3720                                 SCTP_TCB_UNLOCK(stcb);
3721                         } else {
3722                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3723                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3724                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
3725                                         SCTP_INP_RLOCK(inp);
3726                                         av->assoc_value = inp->max_cwnd;
3727                                         SCTP_INP_RUNLOCK(inp);
3728                                 } else {
3729                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3730                                         error = EINVAL;
3731                                 }
3732                         }
3733                         if (error == 0) {
3734                                 *optsize = sizeof(struct sctp_assoc_value);
3735                         }
3736                         break;
3737                 }
3738         default:
3739                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3740                 error = ENOPROTOOPT;
3741                 break;
3742         }                       /* end switch (sopt->sopt_name) */
3743         if (error) {
3744                 *optsize = 0;
3745         }
3746         return (error);
3747 }
3748
3749 static int
3750 sctp_setopt(struct socket *so, int optname, void *optval, size_t optsize,
3751     void *p)
3752 {
3753         int error, set_opt;
3754         uint32_t *mopt;
3755         struct sctp_tcb *stcb = NULL;
3756         struct sctp_inpcb *inp = NULL;
3757         uint32_t vrf_id;
3758
3759         if (optval == NULL) {
3760                 SCTP_PRINTF("optval is NULL\n");
3761                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3762                 return (EINVAL);
3763         }
3764         inp = (struct sctp_inpcb *)so->so_pcb;
3765         if (inp == NULL) {
3766                 SCTP_PRINTF("inp is NULL?\n");
3767                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3768                 return (EINVAL);
3769         }
3770         vrf_id = inp->def_vrf_id;
3771
3772         error = 0;
3773         switch (optname) {
3774         case SCTP_NODELAY:
3775         case SCTP_AUTOCLOSE:
3776         case SCTP_AUTO_ASCONF:
3777         case SCTP_EXPLICIT_EOR:
3778         case SCTP_DISABLE_FRAGMENTS:
3779         case SCTP_USE_EXT_RCVINFO:
3780         case SCTP_I_WANT_MAPPED_V4_ADDR:
3781                 /* copy in the option value */
3782                 SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3783                 set_opt = 0;
3784                 if (error)
3785                         break;
3786                 switch (optname) {
3787                 case SCTP_DISABLE_FRAGMENTS:
3788                         set_opt = SCTP_PCB_FLAGS_NO_FRAGMENT;
3789                         break;
3790                 case SCTP_AUTO_ASCONF:
3791                         /*
3792                          * NOTE: we don't really support this flag
3793                          */
3794                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
3795                                 /* only valid for bound all sockets */
3796                                 if ((SCTP_BASE_SYSCTL(sctp_auto_asconf) == 0) &&
3797                                     (*mopt != 0)) {
3798                                         /* forbidden by admin */
3799                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EPERM);
3800                                         return (EPERM);
3801                                 }
3802                                 set_opt = SCTP_PCB_FLAGS_AUTO_ASCONF;
3803                         } else {
3804                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3805                                 return (EINVAL);
3806                         }
3807                         break;
3808                 case SCTP_EXPLICIT_EOR:
3809                         set_opt = SCTP_PCB_FLAGS_EXPLICIT_EOR;
3810                         break;
3811                 case SCTP_USE_EXT_RCVINFO:
3812                         set_opt = SCTP_PCB_FLAGS_EXT_RCVINFO;
3813                         break;
3814                 case SCTP_I_WANT_MAPPED_V4_ADDR:
3815                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
3816                                 set_opt = SCTP_PCB_FLAGS_NEEDS_MAPPED_V4;
3817                         } else {
3818                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3819                                 return (EINVAL);
3820                         }
3821                         break;
3822                 case SCTP_NODELAY:
3823                         set_opt = SCTP_PCB_FLAGS_NODELAY;
3824                         break;
3825                 case SCTP_AUTOCLOSE:
3826                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3827                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
3828                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3829                                 return (EINVAL);
3830                         }
3831                         set_opt = SCTP_PCB_FLAGS_AUTOCLOSE;
3832                         /*
3833                          * The value is in ticks. Note this does not effect
3834                          * old associations, only new ones.
3835                          */
3836                         inp->sctp_ep.auto_close_time = SEC_TO_TICKS(*mopt);
3837                         break;
3838                 }
3839                 SCTP_INP_WLOCK(inp);
3840                 if (*mopt != 0) {
3841                         sctp_feature_on(inp, set_opt);
3842                 } else {
3843                         sctp_feature_off(inp, set_opt);
3844                 }
3845                 SCTP_INP_WUNLOCK(inp);
3846                 break;
3847         case SCTP_REUSE_PORT:
3848                 {
3849                         SCTP_CHECK_AND_CAST(mopt, optval, uint32_t, optsize);
3850                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) == 0) {
3851                                 /* Can't set it after we are bound */
3852                                 error = EINVAL;
3853                                 break;
3854                         }
3855                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE)) {
3856                                 /* Can't do this for a 1-m socket */
3857                                 error = EINVAL;
3858                                 break;
3859                         }
3860                         if (optval)
3861                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE);
3862                         else
3863                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE);
3864                         break;
3865                 }
3866         case SCTP_PARTIAL_DELIVERY_POINT:
3867                 {
3868                         uint32_t *value;
3869
3870                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
3871                         if (*value > SCTP_SB_LIMIT_RCV(so)) {
3872                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3873                                 error = EINVAL;
3874                                 break;
3875                         }
3876                         inp->partial_delivery_point = *value;
3877                         break;
3878                 }
3879         case SCTP_FRAGMENT_INTERLEAVE:
3880                 /* not yet until we re-write sctp_recvmsg() */
3881                 {
3882                         uint32_t *level;
3883
3884                         SCTP_CHECK_AND_CAST(level, optval, uint32_t, optsize);
3885                         if (*level == SCTP_FRAG_LEVEL_2) {
3886                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3887                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3888                         } else if (*level == SCTP_FRAG_LEVEL_1) {
3889                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3890                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3891                         } else if (*level == SCTP_FRAG_LEVEL_0) {
3892                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE);
3893                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS);
3894
3895                         } else {
3896                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3897                                 error = EINVAL;
3898                         }
3899                         break;
3900                 }
3901         case SCTP_CMT_ON_OFF:
3902                 if (SCTP_BASE_SYSCTL(sctp_cmt_on_off)) {
3903                         struct sctp_assoc_value *av;
3904
3905                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3906                         if (av->assoc_value > SCTP_CMT_MAX) {
3907                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3908                                 error = EINVAL;
3909                                 break;
3910                         }
3911                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3912                         if (stcb) {
3913                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3914                                 SCTP_TCB_UNLOCK(stcb);
3915                         } else {
3916                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3917                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3918                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3919                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3920                                         SCTP_INP_WLOCK(inp);
3921                                         inp->sctp_cmt_on_off = av->assoc_value;
3922                                         SCTP_INP_WUNLOCK(inp);
3923                                 }
3924                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3925                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3926                                         SCTP_INP_RLOCK(inp);
3927                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3928                                                 SCTP_TCB_LOCK(stcb);
3929                                                 stcb->asoc.sctp_cmt_on_off = av->assoc_value;
3930                                                 SCTP_TCB_UNLOCK(stcb);
3931                                         }
3932                                         SCTP_INP_RUNLOCK(inp);
3933                                 }
3934                         }
3935                 } else {
3936                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
3937                         error = ENOPROTOOPT;
3938                 }
3939                 break;
3940         case SCTP_PLUGGABLE_CC:
3941                 {
3942                         struct sctp_assoc_value *av;
3943                         struct sctp_nets *net;
3944
3945                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
3946                         if ((av->assoc_value != SCTP_CC_RFC2581) &&
3947                             (av->assoc_value != SCTP_CC_HSTCP) &&
3948                             (av->assoc_value != SCTP_CC_HTCP) &&
3949                             (av->assoc_value != SCTP_CC_RTCC)) {
3950                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
3951                                 error = EINVAL;
3952                                 break;
3953                         }
3954                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
3955                         if (stcb) {
3956                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3957                                 stcb->asoc.congestion_control_module = av->assoc_value;
3958                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3959                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3960                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3961                                         }
3962                                 }
3963                                 SCTP_TCB_UNLOCK(stcb);
3964                         } else {
3965                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
3966                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
3967                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
3968                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3969                                         SCTP_INP_WLOCK(inp);
3970                                         inp->sctp_ep.sctp_default_cc_module = av->assoc_value;
3971                                         SCTP_INP_WUNLOCK(inp);
3972                                 }
3973                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
3974                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
3975                                         SCTP_INP_RLOCK(inp);
3976                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
3977                                                 SCTP_TCB_LOCK(stcb);
3978                                                 stcb->asoc.cc_functions = sctp_cc_functions[av->assoc_value];
3979                                                 stcb->asoc.congestion_control_module = av->assoc_value;
3980                                                 if (stcb->asoc.cc_functions.sctp_set_initial_cc_param != NULL) {
3981                                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
3982                                                                 stcb->asoc.cc_functions.sctp_set_initial_cc_param(stcb, net);
3983                                                         }
3984                                                 }
3985                                                 SCTP_TCB_UNLOCK(stcb);
3986                                         }
3987                                         SCTP_INP_RUNLOCK(inp);
3988                                 }
3989                         }
3990                         break;
3991                 }
3992         case SCTP_CC_OPTION:
3993                 {
3994                         struct sctp_cc_option *cc_opt;
3995
3996                         SCTP_CHECK_AND_CAST(cc_opt, optval, struct sctp_cc_option, optsize);
3997                         SCTP_FIND_STCB(inp, stcb, cc_opt->aid_value.assoc_id);
3998                         if (stcb == NULL) {
3999                                 if (cc_opt->aid_value.assoc_id == SCTP_CURRENT_ASSOC) {
4000                                         SCTP_INP_RLOCK(inp);
4001                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4002                                                 SCTP_TCB_LOCK(stcb);
4003                                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option) {
4004                                                         (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1, cc_opt);
4005                                                 }
4006                                                 SCTP_TCB_UNLOCK(stcb);
4007                                         }
4008                                         SCTP_INP_RUNLOCK(inp);
4009                                 } else {
4010                                         error = EINVAL;
4011                                 }
4012                         } else {
4013                                 if (stcb->asoc.cc_functions.sctp_cwnd_socket_option == NULL) {
4014                                         error = ENOTSUP;
4015                                 } else {
4016                                         error = (*stcb->asoc.cc_functions.sctp_cwnd_socket_option) (stcb, 1,
4017                                             cc_opt);
4018                                 }
4019                                 SCTP_TCB_UNLOCK(stcb);
4020                         }
4021                         break;
4022                 }
4023         case SCTP_PLUGGABLE_SS:
4024                 {
4025                         struct sctp_assoc_value *av;
4026
4027                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4028                         if ((av->assoc_value != SCTP_SS_DEFAULT) &&
4029                             (av->assoc_value != SCTP_SS_ROUND_ROBIN) &&
4030                             (av->assoc_value != SCTP_SS_ROUND_ROBIN_PACKET) &&
4031                             (av->assoc_value != SCTP_SS_PRIORITY) &&
4032                             (av->assoc_value != SCTP_SS_FAIR_BANDWITH) &&
4033                             (av->assoc_value != SCTP_SS_FIRST_COME)) {
4034                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4035                                 error = EINVAL;
4036                                 break;
4037                         }
4038                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4039                         if (stcb) {
4040                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4041                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4042                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4043                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4044                                 SCTP_TCB_UNLOCK(stcb);
4045                         } else {
4046                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4047                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4048                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4049                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4050                                         SCTP_INP_WLOCK(inp);
4051                                         inp->sctp_ep.sctp_default_ss_module = av->assoc_value;
4052                                         SCTP_INP_WUNLOCK(inp);
4053                                 }
4054                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4055                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4056                                         SCTP_INP_RLOCK(inp);
4057                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4058                                                 SCTP_TCB_LOCK(stcb);
4059                                                 stcb->asoc.ss_functions.sctp_ss_clear(stcb, &stcb->asoc, 1, 1);
4060                                                 stcb->asoc.ss_functions = sctp_ss_functions[av->assoc_value];
4061                                                 stcb->asoc.stream_scheduling_module = av->assoc_value;
4062                                                 stcb->asoc.ss_functions.sctp_ss_init(stcb, &stcb->asoc, 1);
4063                                                 SCTP_TCB_UNLOCK(stcb);
4064                                         }
4065                                         SCTP_INP_RUNLOCK(inp);
4066                                 }
4067                         }
4068                         break;
4069                 }
4070         case SCTP_SS_VALUE:
4071                 {
4072                         struct sctp_stream_value *av;
4073
4074                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_stream_value, optsize);
4075                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4076                         if (stcb) {
4077                                 if ((av->stream_id >= stcb->asoc.streamoutcnt) ||
4078                                     (stcb->asoc.ss_functions.sctp_ss_set_value(stcb, &stcb->asoc, &stcb->asoc.strmout[av->stream_id],
4079                                     av->stream_value) < 0)) {
4080                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4081                                         error = EINVAL;
4082                                 }
4083                                 SCTP_TCB_UNLOCK(stcb);
4084                         } else {
4085                                 if (av->assoc_id == SCTP_CURRENT_ASSOC) {
4086                                         SCTP_INP_RLOCK(inp);
4087                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4088                                                 SCTP_TCB_LOCK(stcb);
4089                                                 if (av->stream_id < stcb->asoc.streamoutcnt) {
4090                                                         stcb->asoc.ss_functions.sctp_ss_set_value(stcb,
4091                                                             &stcb->asoc,
4092                                                             &stcb->asoc.strmout[av->stream_id],
4093                                                             av->stream_value);
4094                                                 }
4095                                                 SCTP_TCB_UNLOCK(stcb);
4096                                         }
4097                                         SCTP_INP_RUNLOCK(inp);
4098                                 } else {
4099                                         /*
4100                                          * Can't set stream value without
4101                                          * association
4102                                          */
4103                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4104                                         error = EINVAL;
4105                                 }
4106                         }
4107                         break;
4108                 }
4109         case SCTP_CLR_STAT_LOG:
4110                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4111                 error = EOPNOTSUPP;
4112                 break;
4113         case SCTP_CONTEXT:
4114                 {
4115                         struct sctp_assoc_value *av;
4116
4117                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4118                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4119
4120                         if (stcb) {
4121                                 stcb->asoc.context = av->assoc_value;
4122                                 SCTP_TCB_UNLOCK(stcb);
4123                         } else {
4124                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4125                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4126                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4127                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4128                                         SCTP_INP_WLOCK(inp);
4129                                         inp->sctp_context = av->assoc_value;
4130                                         SCTP_INP_WUNLOCK(inp);
4131                                 }
4132                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4133                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4134                                         SCTP_INP_RLOCK(inp);
4135                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4136                                                 SCTP_TCB_LOCK(stcb);
4137                                                 stcb->asoc.context = av->assoc_value;
4138                                                 SCTP_TCB_UNLOCK(stcb);
4139                                         }
4140                                         SCTP_INP_RUNLOCK(inp);
4141                                 }
4142                         }
4143                         break;
4144                 }
4145         case SCTP_VRF_ID:
4146                 {
4147                         uint32_t *default_vrfid;
4148
4149                         SCTP_CHECK_AND_CAST(default_vrfid, optval, uint32_t, optsize);
4150                         if (*default_vrfid > SCTP_MAX_VRF_ID) {
4151                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4152                                 error = EINVAL;
4153                                 break;
4154                         }
4155                         inp->def_vrf_id = *default_vrfid;
4156                         break;
4157                 }
4158         case SCTP_DEL_VRF_ID:
4159                 {
4160                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4161                         error = EOPNOTSUPP;
4162                         break;
4163                 }
4164         case SCTP_ADD_VRF_ID:
4165                 {
4166                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4167                         error = EOPNOTSUPP;
4168                         break;
4169                 }
4170         case SCTP_DELAYED_SACK:
4171                 {
4172                         struct sctp_sack_info *sack;
4173
4174                         SCTP_CHECK_AND_CAST(sack, optval, struct sctp_sack_info, optsize);
4175                         SCTP_FIND_STCB(inp, stcb, sack->sack_assoc_id);
4176                         if (sack->sack_delay) {
4177                                 if (sack->sack_delay > SCTP_MAX_SACK_DELAY)
4178                                         sack->sack_delay = SCTP_MAX_SACK_DELAY;
4179                                 if (MSEC_TO_TICKS(sack->sack_delay) < 1) {
4180                                         sack->sack_delay = TICKS_TO_MSEC(1);
4181                                 }
4182                         }
4183                         if (stcb) {
4184                                 if (sack->sack_delay) {
4185                                         stcb->asoc.delayed_ack = sack->sack_delay;
4186                                 }
4187                                 if (sack->sack_freq) {
4188                                         stcb->asoc.sack_freq = sack->sack_freq;
4189                                 }
4190                                 SCTP_TCB_UNLOCK(stcb);
4191                         } else {
4192                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4193                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4194                                     (sack->sack_assoc_id == SCTP_FUTURE_ASSOC) ||
4195                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4196                                         SCTP_INP_WLOCK(inp);
4197                                         if (sack->sack_delay) {
4198                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV] = MSEC_TO_TICKS(sack->sack_delay);
4199                                         }
4200                                         if (sack->sack_freq) {
4201                                                 inp->sctp_ep.sctp_sack_freq = sack->sack_freq;
4202                                         }
4203                                         SCTP_INP_WUNLOCK(inp);
4204                                 }
4205                                 if ((sack->sack_assoc_id == SCTP_CURRENT_ASSOC) ||
4206                                     (sack->sack_assoc_id == SCTP_ALL_ASSOC)) {
4207                                         SCTP_INP_RLOCK(inp);
4208                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4209                                                 SCTP_TCB_LOCK(stcb);
4210                                                 if (sack->sack_delay) {
4211                                                         stcb->asoc.delayed_ack = sack->sack_delay;
4212                                                 }
4213                                                 if (sack->sack_freq) {
4214                                                         stcb->asoc.sack_freq = sack->sack_freq;
4215                                                 }
4216                                                 SCTP_TCB_UNLOCK(stcb);
4217                                         }
4218                                         SCTP_INP_RUNLOCK(inp);
4219                                 }
4220                         }
4221                         break;
4222                 }
4223         case SCTP_AUTH_CHUNK:
4224                 {
4225                         struct sctp_authchunk *sauth;
4226
4227                         SCTP_CHECK_AND_CAST(sauth, optval, struct sctp_authchunk, optsize);
4228
4229                         SCTP_INP_WLOCK(inp);
4230                         if (sctp_auth_add_chunk(sauth->sauth_chunk, inp->sctp_ep.local_auth_chunks)) {
4231                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4232                                 error = EINVAL;
4233                         }
4234                         SCTP_INP_WUNLOCK(inp);
4235                         break;
4236                 }
4237         case SCTP_AUTH_KEY:
4238                 {
4239                         struct sctp_authkey *sca;
4240                         struct sctp_keyhead *shared_keys;
4241                         sctp_sharedkey_t *shared_key;
4242                         sctp_key_t *key = NULL;
4243                         size_t size;
4244
4245                         SCTP_CHECK_AND_CAST(sca, optval, struct sctp_authkey, optsize);
4246                         if (sca->sca_keylength == 0) {
4247                                 size = optsize - sizeof(struct sctp_authkey);
4248                         } else {
4249                                 if (sca->sca_keylength + sizeof(struct sctp_authkey) <= optsize) {
4250                                         size = sca->sca_keylength;
4251                                 } else {
4252                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4253                                         error = EINVAL;
4254                                         break;
4255                                 }
4256                         }
4257                         SCTP_FIND_STCB(inp, stcb, sca->sca_assoc_id);
4258
4259                         if (stcb) {
4260                                 shared_keys = &stcb->asoc.shared_keys;
4261                                 /* clear the cached keys for this key id */
4262                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4263                                 /*
4264                                  * create the new shared key and
4265                                  * insert/replace it
4266                                  */
4267                                 if (size > 0) {
4268                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4269                                         if (key == NULL) {
4270                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4271                                                 error = ENOMEM;
4272                                                 SCTP_TCB_UNLOCK(stcb);
4273                                                 break;
4274                                         }
4275                                 }
4276                                 shared_key = sctp_alloc_sharedkey();
4277                                 if (shared_key == NULL) {
4278                                         sctp_free_key(key);
4279                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4280                                         error = ENOMEM;
4281                                         SCTP_TCB_UNLOCK(stcb);
4282                                         break;
4283                                 }
4284                                 shared_key->key = key;
4285                                 shared_key->keyid = sca->sca_keynumber;
4286                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4287                                 SCTP_TCB_UNLOCK(stcb);
4288                         } else {
4289                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4290                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4291                                     (sca->sca_assoc_id == SCTP_FUTURE_ASSOC) ||
4292                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4293                                         SCTP_INP_WLOCK(inp);
4294                                         shared_keys = &inp->sctp_ep.shared_keys;
4295                                         /*
4296                                          * clear the cached keys on all
4297                                          * assocs for this key id
4298                                          */
4299                                         sctp_clear_cachedkeys_ep(inp, sca->sca_keynumber);
4300                                         /*
4301                                          * create the new shared key and
4302                                          * insert/replace it
4303                                          */
4304                                         if (size > 0) {
4305                                                 key = sctp_set_key(sca->sca_key, (uint32_t) size);
4306                                                 if (key == NULL) {
4307                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4308                                                         error = ENOMEM;
4309                                                         SCTP_INP_WUNLOCK(inp);
4310                                                         break;
4311                                                 }
4312                                         }
4313                                         shared_key = sctp_alloc_sharedkey();
4314                                         if (shared_key == NULL) {
4315                                                 sctp_free_key(key);
4316                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4317                                                 error = ENOMEM;
4318                                                 SCTP_INP_WUNLOCK(inp);
4319                                                 break;
4320                                         }
4321                                         shared_key->key = key;
4322                                         shared_key->keyid = sca->sca_keynumber;
4323                                         error = sctp_insert_sharedkey(shared_keys, shared_key);
4324                                         SCTP_INP_WUNLOCK(inp);
4325                                 }
4326                                 if ((sca->sca_assoc_id == SCTP_CURRENT_ASSOC) ||
4327                                     (sca->sca_assoc_id == SCTP_ALL_ASSOC)) {
4328                                         SCTP_INP_RLOCK(inp);
4329                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4330                                                 SCTP_TCB_LOCK(stcb);
4331                                                 shared_keys = &stcb->asoc.shared_keys;
4332                                                 /*
4333                                                  * clear the cached keys for
4334                                                  * this key id
4335                                                  */
4336                                                 sctp_clear_cachedkeys(stcb, sca->sca_keynumber);
4337                                                 /*
4338                                                  * create the new shared key
4339                                                  * and insert/replace it
4340                                                  */
4341                                                 if (size > 0) {
4342                                                         key = sctp_set_key(sca->sca_key, (uint32_t) size);
4343                                                         if (key == NULL) {
4344                                                                 SCTP_TCB_UNLOCK(stcb);
4345                                                                 continue;
4346                                                         }
4347                                                 }
4348                                                 shared_key = sctp_alloc_sharedkey();
4349                                                 if (shared_key == NULL) {
4350                                                         sctp_free_key(key);
4351                                                         SCTP_TCB_UNLOCK(stcb);
4352                                                         continue;
4353                                                 }
4354                                                 shared_key->key = key;
4355                                                 shared_key->keyid = sca->sca_keynumber;
4356                                                 error = sctp_insert_sharedkey(shared_keys, shared_key);
4357                                                 SCTP_TCB_UNLOCK(stcb);
4358                                         }
4359                                         SCTP_INP_RUNLOCK(inp);
4360                                 }
4361                         }
4362                         break;
4363                 }
4364         case SCTP_HMAC_IDENT:
4365                 {
4366                         struct sctp_hmacalgo *shmac;
4367                         sctp_hmaclist_t *hmaclist;
4368                         uint16_t hmacid;
4369                         uint32_t i;
4370
4371                         SCTP_CHECK_AND_CAST(shmac, optval, struct sctp_hmacalgo, optsize);
4372                         if ((optsize < sizeof(struct sctp_hmacalgo) + shmac->shmac_number_of_idents * sizeof(uint16_t)) ||
4373                             (shmac->shmac_number_of_idents > 0xffff)) {
4374                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4375                                 error = EINVAL;
4376                                 break;
4377                         }
4378                         hmaclist = sctp_alloc_hmaclist((uint16_t) shmac->shmac_number_of_idents);
4379                         if (hmaclist == NULL) {
4380                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4381                                 error = ENOMEM;
4382                                 break;
4383                         }
4384                         for (i = 0; i < shmac->shmac_number_of_idents; i++) {
4385                                 hmacid = shmac->shmac_idents[i];
4386                                 if (sctp_auth_add_hmacid(hmaclist, hmacid)) {
4387                                          /* invalid HMACs were found */ ;
4388                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4389                                         error = EINVAL;
4390                                         sctp_free_hmaclist(hmaclist);
4391                                         goto sctp_set_hmac_done;
4392                                 }
4393                         }
4394                         for (i = 0; i < hmaclist->num_algo; i++) {
4395                                 if (hmaclist->hmac[i] == SCTP_AUTH_HMAC_ID_SHA1) {
4396                                         /* already in list */
4397                                         break;
4398                                 }
4399                         }
4400                         if (i == hmaclist->num_algo) {
4401                                 /* not found in list */
4402                                 sctp_free_hmaclist(hmaclist);
4403                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4404                                 error = EINVAL;
4405                                 break;
4406                         }
4407                         /* set it on the endpoint */
4408                         SCTP_INP_WLOCK(inp);
4409                         if (inp->sctp_ep.local_hmacs)
4410                                 sctp_free_hmaclist(inp->sctp_ep.local_hmacs);
4411                         inp->sctp_ep.local_hmacs = hmaclist;
4412                         SCTP_INP_WUNLOCK(inp);
4413         sctp_set_hmac_done:
4414                         break;
4415                 }
4416         case SCTP_AUTH_ACTIVE_KEY:
4417                 {
4418                         struct sctp_authkeyid *scact;
4419
4420                         SCTP_CHECK_AND_CAST(scact, optval, struct sctp_authkeyid, optsize);
4421                         SCTP_FIND_STCB(inp, stcb, scact->scact_assoc_id);
4422
4423                         /* set the active key on the right place */
4424                         if (stcb) {
4425                                 /* set the active key on the assoc */
4426                                 if (sctp_auth_setactivekey(stcb,
4427                                     scact->scact_keynumber)) {
4428                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL,
4429                                             SCTP_FROM_SCTP_USRREQ,
4430                                             EINVAL);
4431                                         error = EINVAL;
4432                                 }
4433                                 SCTP_TCB_UNLOCK(stcb);
4434                         } else {
4435                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4436                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4437                                     (scact->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4438                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4439                                         SCTP_INP_WLOCK(inp);
4440                                         if (sctp_auth_setactivekey_ep(inp, scact->scact_keynumber)) {
4441                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4442                                                 error = EINVAL;
4443                                         }
4444                                         SCTP_INP_WUNLOCK(inp);
4445                                 }
4446                                 if ((scact->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4447                                     (scact->scact_assoc_id == SCTP_ALL_ASSOC)) {
4448                                         SCTP_INP_RLOCK(inp);
4449                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4450                                                 SCTP_TCB_LOCK(stcb);
4451                                                 sctp_auth_setactivekey(stcb, scact->scact_keynumber);
4452                                                 SCTP_TCB_UNLOCK(stcb);
4453                                         }
4454                                         SCTP_INP_RUNLOCK(inp);
4455                                 }
4456                         }
4457                         break;
4458                 }
4459         case SCTP_AUTH_DELETE_KEY:
4460                 {
4461                         struct sctp_authkeyid *scdel;
4462
4463                         SCTP_CHECK_AND_CAST(scdel, optval, struct sctp_authkeyid, optsize);
4464                         SCTP_FIND_STCB(inp, stcb, scdel->scact_assoc_id);
4465
4466                         /* delete the key from the right place */
4467                         if (stcb) {
4468                                 if (sctp_delete_sharedkey(stcb, scdel->scact_keynumber)) {
4469                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4470                                         error = EINVAL;
4471                                 }
4472                                 SCTP_TCB_UNLOCK(stcb);
4473                         } else {
4474                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4475                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4476                                     (scdel->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4477                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4478                                         SCTP_INP_WLOCK(inp);
4479                                         if (sctp_delete_sharedkey_ep(inp, scdel->scact_keynumber)) {
4480                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4481                                                 error = EINVAL;
4482                                         }
4483                                         SCTP_INP_WUNLOCK(inp);
4484                                 }
4485                                 if ((scdel->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4486                                     (scdel->scact_assoc_id == SCTP_ALL_ASSOC)) {
4487                                         SCTP_INP_RLOCK(inp);
4488                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4489                                                 SCTP_TCB_LOCK(stcb);
4490                                                 sctp_delete_sharedkey(stcb, scdel->scact_keynumber);
4491                                                 SCTP_TCB_UNLOCK(stcb);
4492                                         }
4493                                         SCTP_INP_RUNLOCK(inp);
4494                                 }
4495                         }
4496                         break;
4497                 }
4498         case SCTP_AUTH_DEACTIVATE_KEY:
4499                 {
4500                         struct sctp_authkeyid *keyid;
4501
4502                         SCTP_CHECK_AND_CAST(keyid, optval, struct sctp_authkeyid, optsize);
4503                         SCTP_FIND_STCB(inp, stcb, keyid->scact_assoc_id);
4504
4505                         /* deactivate the key from the right place */
4506                         if (stcb) {
4507                                 if (sctp_deact_sharedkey(stcb, keyid->scact_keynumber)) {
4508                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4509                                         error = EINVAL;
4510                                 }
4511                                 SCTP_TCB_UNLOCK(stcb);
4512                         } else {
4513                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4514                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4515                                     (keyid->scact_assoc_id == SCTP_FUTURE_ASSOC) ||
4516                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4517                                         SCTP_INP_WLOCK(inp);
4518                                         if (sctp_deact_sharedkey_ep(inp, keyid->scact_keynumber)) {
4519                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4520                                                 error = EINVAL;
4521                                         }
4522                                         SCTP_INP_WUNLOCK(inp);
4523                                 }
4524                                 if ((keyid->scact_assoc_id == SCTP_CURRENT_ASSOC) ||
4525                                     (keyid->scact_assoc_id == SCTP_ALL_ASSOC)) {
4526                                         SCTP_INP_RLOCK(inp);
4527                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4528                                                 SCTP_TCB_LOCK(stcb);
4529                                                 sctp_deact_sharedkey(stcb, keyid->scact_keynumber);
4530                                                 SCTP_TCB_UNLOCK(stcb);
4531                                         }
4532                                         SCTP_INP_RUNLOCK(inp);
4533                                 }
4534                         }
4535                         break;
4536                 }
4537         case SCTP_ENABLE_STREAM_RESET:
4538                 {
4539                         struct sctp_assoc_value *av;
4540
4541                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4542                         if (av->assoc_value & (~SCTP_ENABLE_VALUE_MASK)) {
4543                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4544                                 error = EINVAL;
4545                                 break;
4546                         }
4547                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4548                         if (stcb) {
4549                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4550                                 SCTP_TCB_UNLOCK(stcb);
4551                         } else {
4552                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4553                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4554                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4555                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4556                                         SCTP_INP_WLOCK(inp);
4557                                         inp->local_strreset_support = (uint8_t) av->assoc_value;
4558                                         SCTP_INP_WUNLOCK(inp);
4559                                 }
4560                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4561                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4562                                         SCTP_INP_RLOCK(inp);
4563                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4564                                                 SCTP_TCB_LOCK(stcb);
4565                                                 stcb->asoc.local_strreset_support = (uint8_t) av->assoc_value;
4566                                                 SCTP_TCB_UNLOCK(stcb);
4567                                         }
4568                                         SCTP_INP_RUNLOCK(inp);
4569                                 }
4570                         }
4571                         break;
4572                 }
4573         case SCTP_RESET_STREAMS:
4574                 {
4575                         struct sctp_reset_streams *strrst;
4576                         int i, send_out = 0;
4577                         int send_in = 0;
4578
4579                         SCTP_CHECK_AND_CAST(strrst, optval, struct sctp_reset_streams, optsize);
4580                         SCTP_FIND_STCB(inp, stcb, strrst->srs_assoc_id);
4581                         if (stcb == NULL) {
4582                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4583                                 error = ENOENT;
4584                                 break;
4585                         }
4586                         if (stcb->asoc.reconfig_supported == 0) {
4587                                 /*
4588                                  * Peer does not support the chunk type.
4589                                  */
4590                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4591                                 error = EOPNOTSUPP;
4592                                 SCTP_TCB_UNLOCK(stcb);
4593                                 break;
4594                         }
4595                         if (sizeof(struct sctp_reset_streams) +
4596                             strrst->srs_number_streams * sizeof(uint16_t) > optsize) {
4597                                 error = EINVAL;
4598                                 SCTP_TCB_UNLOCK(stcb);
4599                                 break;
4600                         }
4601                         if (strrst->srs_flags & SCTP_STREAM_RESET_INCOMING) {
4602                                 send_in = 1;
4603                                 if (stcb->asoc.stream_reset_outstanding) {
4604                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4605                                         error = EALREADY;
4606                                         SCTP_TCB_UNLOCK(stcb);
4607                                         break;
4608                                 }
4609                         }
4610                         if (strrst->srs_flags & SCTP_STREAM_RESET_OUTGOING) {
4611                                 send_out = 1;
4612                         }
4613                         if ((strrst->srs_number_streams > SCTP_MAX_STREAMS_AT_ONCE_RESET) && send_in) {
4614                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOMEM);
4615                                 error = ENOMEM;
4616                                 SCTP_TCB_UNLOCK(stcb);
4617                                 break;
4618                         }
4619                         if ((send_in == 0) && (send_out == 0)) {
4620                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4621                                 error = EINVAL;
4622                                 SCTP_TCB_UNLOCK(stcb);
4623                                 break;
4624                         }
4625                         for (i = 0; i < strrst->srs_number_streams; i++) {
4626                                 if ((send_in) &&
4627                                     (strrst->srs_stream_list[i] > stcb->asoc.streamincnt)) {
4628                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4629                                         error = EINVAL;
4630                                         break;
4631                                 }
4632                                 if ((send_out) &&
4633                                     (strrst->srs_stream_list[i] > stcb->asoc.streamoutcnt)) {
4634                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4635                                         error = EINVAL;
4636                                         break;
4637                                 }
4638                         }
4639                         if (error) {
4640                                 SCTP_TCB_UNLOCK(stcb);
4641                                 break;
4642                         }
4643                         if (send_out) {
4644                                 int cnt;
4645                                 uint16_t strm;
4646
4647                                 if (strrst->srs_number_streams) {
4648                                         for (i = 0, cnt = 0; i < strrst->srs_number_streams; i++) {
4649                                                 strm = strrst->srs_stream_list[i];
4650                                                 if (stcb->asoc.strmout[strm].state == SCTP_STREAM_OPEN) {
4651                                                         stcb->asoc.strmout[strm].state = SCTP_STREAM_RESET_PENDING;
4652                                                         cnt++;
4653                                                 }
4654                                         }
4655                                 } else {
4656                                         /* Its all */
4657                                         for (i = 0, cnt = 0; i < stcb->asoc.streamoutcnt; i++) {
4658                                                 if (stcb->asoc.strmout[i].state == SCTP_STREAM_OPEN) {
4659                                                         stcb->asoc.strmout[i].state = SCTP_STREAM_RESET_PENDING;
4660                                                         cnt++;
4661                                                 }
4662                                         }
4663                                 }
4664                         }
4665                         if (send_in) {
4666                                 error = sctp_send_str_reset_req(stcb, strrst->srs_number_streams,
4667                                     strrst->srs_stream_list,
4668                                     send_in, 0, 0, 0, 0, 0);
4669                         } else {
4670                                 error = sctp_send_stream_reset_out_if_possible(stcb, SCTP_SO_LOCKED);
4671                         }
4672                         if (error == 0) {
4673                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4674                         } else {
4675                                 /*
4676                                  * For outgoing streams don't report any
4677                                  * problems in sending the request to the
4678                                  * application. XXX: Double check resetting
4679                                  * incoming streams.
4680                                  */
4681                                 error = 0;
4682                         }
4683                         SCTP_TCB_UNLOCK(stcb);
4684                         break;
4685                 }
4686         case SCTP_ADD_STREAMS:
4687                 {
4688                         struct sctp_add_streams *stradd;
4689                         uint8_t addstream = 0;
4690                         uint16_t add_o_strmcnt = 0;
4691                         uint16_t add_i_strmcnt = 0;
4692
4693                         SCTP_CHECK_AND_CAST(stradd, optval, struct sctp_add_streams, optsize);
4694                         SCTP_FIND_STCB(inp, stcb, stradd->sas_assoc_id);
4695                         if (stcb == NULL) {
4696                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4697                                 error = ENOENT;
4698                                 break;
4699                         }
4700                         if (stcb->asoc.reconfig_supported == 0) {
4701                                 /*
4702                                  * Peer does not support the chunk type.
4703                                  */
4704                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4705                                 error = EOPNOTSUPP;
4706                                 SCTP_TCB_UNLOCK(stcb);
4707                                 break;
4708                         }
4709                         if (stcb->asoc.stream_reset_outstanding) {
4710                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4711                                 error = EALREADY;
4712                                 SCTP_TCB_UNLOCK(stcb);
4713                                 break;
4714                         }
4715                         if ((stradd->sas_outstrms == 0) &&
4716                             (stradd->sas_instrms == 0)) {
4717                                 error = EINVAL;
4718                                 goto skip_stuff;
4719                         }
4720                         if (stradd->sas_outstrms) {
4721                                 addstream = 1;
4722                                 /* We allocate here */
4723                                 add_o_strmcnt = stradd->sas_outstrms;
4724                                 if ((((int)add_o_strmcnt) + ((int)stcb->asoc.streamoutcnt)) > 0x0000ffff) {
4725                                         /* You can't have more than 64k */
4726                                         error = EINVAL;
4727                                         goto skip_stuff;
4728                                 }
4729                         }
4730                         if (stradd->sas_instrms) {
4731                                 int cnt;
4732
4733                                 addstream |= 2;
4734                                 /*
4735                                  * We allocate inside
4736                                  * sctp_send_str_reset_req()
4737                                  */
4738                                 add_i_strmcnt = stradd->sas_instrms;
4739                                 cnt = add_i_strmcnt;
4740                                 cnt += stcb->asoc.streamincnt;
4741                                 if (cnt > 0x0000ffff) {
4742                                         /* You can't have more than 64k */
4743                                         error = EINVAL;
4744                                         goto skip_stuff;
4745                                 }
4746                                 if (cnt > (int)stcb->asoc.max_inbound_streams) {
4747                                         /* More than you are allowed */
4748                                         error = EINVAL;
4749                                         goto skip_stuff;
4750                                 }
4751                         }
4752                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 0, addstream, add_o_strmcnt, add_i_strmcnt, 0);
4753                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4754         skip_stuff:
4755                         SCTP_TCB_UNLOCK(stcb);
4756                         break;
4757                 }
4758         case SCTP_RESET_ASSOC:
4759                 {
4760                         int i;
4761                         uint32_t *value;
4762
4763                         SCTP_CHECK_AND_CAST(value, optval, uint32_t, optsize);
4764                         SCTP_FIND_STCB(inp, stcb, (sctp_assoc_t) * value);
4765                         if (stcb == NULL) {
4766                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4767                                 error = ENOENT;
4768                                 break;
4769                         }
4770                         if (stcb->asoc.reconfig_supported == 0) {
4771                                 /*
4772                                  * Peer does not support the chunk type.
4773                                  */
4774                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
4775                                 error = EOPNOTSUPP;
4776                                 SCTP_TCB_UNLOCK(stcb);
4777                                 break;
4778                         }
4779                         if (stcb->asoc.stream_reset_outstanding) {
4780                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4781                                 error = EALREADY;
4782                                 SCTP_TCB_UNLOCK(stcb);
4783                                 break;
4784                         }
4785                         /*
4786                          * Is there any data pending in the send or sent
4787                          * queues?
4788                          */
4789                         if (!TAILQ_EMPTY(&stcb->asoc.send_queue) ||
4790                             !TAILQ_EMPTY(&stcb->asoc.sent_queue)) {
4791                 busy_out:
4792                                 error = EBUSY;
4793                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
4794                                 SCTP_TCB_UNLOCK(stcb);
4795                                 break;
4796                         }
4797                         /* Do any streams have data queued? */
4798                         for (i = 0; i < stcb->asoc.streamoutcnt; i++) {
4799                                 if (!TAILQ_EMPTY(&stcb->asoc.strmout[i].outqueue)) {
4800                                         goto busy_out;
4801                                 }
4802                         }
4803                         error = sctp_send_str_reset_req(stcb, 0, NULL, 0, 1, 0, 0, 0, 0);
4804                         sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_REQ, SCTP_SO_LOCKED);
4805                         SCTP_TCB_UNLOCK(stcb);
4806                         break;
4807                 }
4808         case SCTP_CONNECT_X:
4809                 if (optsize < (sizeof(int) + sizeof(struct sockaddr_in))) {
4810                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4811                         error = EINVAL;
4812                         break;
4813                 }
4814                 error = sctp_do_connect_x(so, inp, optval, optsize, p, 0);
4815                 break;
4816         case SCTP_CONNECT_X_DELAYED:
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, 1);
4823                 break;
4824         case SCTP_CONNECT_X_COMPLETE:
4825                 {
4826                         struct sockaddr *sa;
4827
4828                         /* FIXME MT: check correct? */
4829                         SCTP_CHECK_AND_CAST(sa, optval, struct sockaddr, optsize);
4830
4831                         /* find tcb */
4832                         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
4833                                 SCTP_INP_RLOCK(inp);
4834                                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
4835                                 if (stcb) {
4836                                         SCTP_TCB_LOCK(stcb);
4837                                 }
4838                                 SCTP_INP_RUNLOCK(inp);
4839                         } else {
4840                                 /*
4841                                  * We increment here since
4842                                  * sctp_findassociation_ep_addr() wil do a
4843                                  * decrement if it finds the stcb as long as
4844                                  * the locked tcb (last argument) is NOT a
4845                                  * TCB.. aka NULL.
4846                                  */
4847                                 SCTP_INP_INCR_REF(inp);
4848                                 stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL);
4849                                 if (stcb == NULL) {
4850                                         SCTP_INP_DECR_REF(inp);
4851                                 }
4852                         }
4853
4854                         if (stcb == NULL) {
4855                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
4856                                 error = ENOENT;
4857                                 break;
4858                         }
4859                         if (stcb->asoc.delayed_connection == 1) {
4860                                 stcb->asoc.delayed_connection = 0;
4861                                 (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
4862                                 sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb,
4863                                     stcb->asoc.primary_destination,
4864                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_8);
4865                                 sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
4866                         } else {
4867                                 /*
4868                                  * already expired or did not use delayed
4869                                  * connectx
4870                                  */
4871                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
4872                                 error = EALREADY;
4873                         }
4874                         SCTP_TCB_UNLOCK(stcb);
4875                         break;
4876                 }
4877         case SCTP_MAX_BURST:
4878                 {
4879                         struct sctp_assoc_value *av;
4880
4881                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4882                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4883
4884                         if (stcb) {
4885                                 stcb->asoc.max_burst = av->assoc_value;
4886                                 SCTP_TCB_UNLOCK(stcb);
4887                         } else {
4888                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4889                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4890                                     (av->assoc_id == SCTP_FUTURE_ASSOC) ||
4891                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4892                                         SCTP_INP_WLOCK(inp);
4893                                         inp->sctp_ep.max_burst = av->assoc_value;
4894                                         SCTP_INP_WUNLOCK(inp);
4895                                 }
4896                                 if ((av->assoc_id == SCTP_CURRENT_ASSOC) ||
4897                                     (av->assoc_id == SCTP_ALL_ASSOC)) {
4898                                         SCTP_INP_RLOCK(inp);
4899                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
4900                                                 SCTP_TCB_LOCK(stcb);
4901                                                 stcb->asoc.max_burst = av->assoc_value;
4902                                                 SCTP_TCB_UNLOCK(stcb);
4903                                         }
4904                                         SCTP_INP_RUNLOCK(inp);
4905                                 }
4906                         }
4907                         break;
4908                 }
4909         case SCTP_MAXSEG:
4910                 {
4911                         struct sctp_assoc_value *av;
4912                         int ovh;
4913
4914                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
4915                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
4916
4917                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
4918                                 ovh = SCTP_MED_OVERHEAD;
4919                         } else {
4920                                 ovh = SCTP_MED_V4_OVERHEAD;
4921                         }
4922                         if (stcb) {
4923                                 if (av->assoc_value) {
4924                                         stcb->asoc.sctp_frag_point = (av->assoc_value + ovh);
4925                                 } else {
4926                                         stcb->asoc.sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4927                                 }
4928                                 SCTP_TCB_UNLOCK(stcb);
4929                         } else {
4930                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
4931                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
4932                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
4933                                         SCTP_INP_WLOCK(inp);
4934                                         /*
4935                                          * FIXME MT: I think this is not in
4936                                          * tune with the API ID
4937                                          */
4938                                         if (av->assoc_value) {
4939                                                 inp->sctp_frag_point = (av->assoc_value + ovh);
4940                                         } else {
4941                                                 inp->sctp_frag_point = SCTP_DEFAULT_MAXSEGMENT;
4942                                         }
4943                                         SCTP_INP_WUNLOCK(inp);
4944                                 } else {
4945                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
4946                                         error = EINVAL;
4947                                 }
4948                         }
4949                         break;
4950                 }
4951         case SCTP_EVENTS:
4952                 {
4953                         struct sctp_event_subscribe *events;
4954
4955                         SCTP_CHECK_AND_CAST(events, optval, struct sctp_event_subscribe, optsize);
4956
4957                         SCTP_INP_WLOCK(inp);
4958                         if (events->sctp_data_io_event) {
4959                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4960                         } else {
4961                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT);
4962                         }
4963
4964                         if (events->sctp_association_event) {
4965                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4966                         } else {
4967                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVASSOCEVNT);
4968                         }
4969
4970                         if (events->sctp_address_event) {
4971                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4972                         } else {
4973                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPADDREVNT);
4974                         }
4975
4976                         if (events->sctp_send_failure_event) {
4977                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4978                         } else {
4979                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
4980                         }
4981
4982                         if (events->sctp_peer_error_event) {
4983                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4984                         } else {
4985                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVPEERERR);
4986                         }
4987
4988                         if (events->sctp_shutdown_event) {
4989                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4990                         } else {
4991                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
4992                         }
4993
4994                         if (events->sctp_partial_delivery_event) {
4995                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4996                         } else {
4997                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_PDAPIEVNT);
4998                         }
4999
5000                         if (events->sctp_adaptation_layer_event) {
5001                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5002                         } else {
5003                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5004                         }
5005
5006                         if (events->sctp_authentication_event) {
5007                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5008                         } else {
5009                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_AUTHEVNT);
5010                         }
5011
5012                         if (events->sctp_sender_dry_event) {
5013                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DRYEVNT);
5014                         } else {
5015                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DRYEVNT);
5016                         }
5017
5018                         if (events->sctp_stream_reset_event) {
5019                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5020                         } else {
5021                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5022                         }
5023                         SCTP_INP_WUNLOCK(inp);
5024
5025                         SCTP_INP_RLOCK(inp);
5026                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5027                                 SCTP_TCB_LOCK(stcb);
5028                                 if (events->sctp_association_event) {
5029                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5030                                 } else {
5031                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT);
5032                                 }
5033                                 if (events->sctp_address_event) {
5034                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5035                                 } else {
5036                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT);
5037                                 }
5038                                 if (events->sctp_send_failure_event) {
5039                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5040                                 } else {
5041                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT);
5042                                 }
5043                                 if (events->sctp_peer_error_event) {
5044                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5045                                 } else {
5046                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVPEERERR);
5047                                 }
5048                                 if (events->sctp_shutdown_event) {
5049                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5050                                 } else {
5051                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT);
5052                                 }
5053                                 if (events->sctp_partial_delivery_event) {
5054                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5055                                 } else {
5056                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_PDAPIEVNT);
5057                                 }
5058                                 if (events->sctp_adaptation_layer_event) {
5059                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5060                                 } else {
5061                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT);
5062                                 }
5063                                 if (events->sctp_authentication_event) {
5064                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5065                                 } else {
5066                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_AUTHEVNT);
5067                                 }
5068                                 if (events->sctp_sender_dry_event) {
5069                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5070                                 } else {
5071                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DRYEVNT);
5072                                 }
5073                                 if (events->sctp_stream_reset_event) {
5074                                         sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5075                                 } else {
5076                                         sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT);
5077                                 }
5078                                 SCTP_TCB_UNLOCK(stcb);
5079                         }
5080                         /*
5081                          * Send up the sender dry event only for 1-to-1
5082                          * style sockets.
5083                          */
5084                         if (events->sctp_sender_dry_event) {
5085                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5086                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
5087                                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
5088                                         if (stcb) {
5089                                                 SCTP_TCB_LOCK(stcb);
5090                                                 if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
5091                                                     TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
5092                                                     (stcb->asoc.stream_queue_cnt == 0)) {
5093                                                         sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
5094                                                 }
5095                                                 SCTP_TCB_UNLOCK(stcb);
5096                                         }
5097                                 }
5098                         }
5099                         SCTP_INP_RUNLOCK(inp);
5100                         break;
5101                 }
5102         case SCTP_ADAPTATION_LAYER:
5103                 {
5104                         struct sctp_setadaptation *adap_bits;
5105
5106                         SCTP_CHECK_AND_CAST(adap_bits, optval, struct sctp_setadaptation, optsize);
5107                         SCTP_INP_WLOCK(inp);
5108                         inp->sctp_ep.adaptation_layer_indicator = adap_bits->ssb_adaptation_ind;
5109                         inp->sctp_ep.adaptation_layer_indicator_provided = 1;
5110                         SCTP_INP_WUNLOCK(inp);
5111                         break;
5112                 }
5113 #ifdef SCTP_DEBUG
5114         case SCTP_SET_INITIAL_DBG_SEQ:
5115                 {
5116                         uint32_t *vvv;
5117
5118                         SCTP_CHECK_AND_CAST(vvv, optval, uint32_t, optsize);
5119                         SCTP_INP_WLOCK(inp);
5120                         inp->sctp_ep.initial_sequence_debug = *vvv;
5121                         SCTP_INP_WUNLOCK(inp);
5122                         break;
5123                 }
5124 #endif
5125         case SCTP_DEFAULT_SEND_PARAM:
5126                 {
5127                         struct sctp_sndrcvinfo *s_info;
5128
5129                         SCTP_CHECK_AND_CAST(s_info, optval, struct sctp_sndrcvinfo, optsize);
5130                         SCTP_FIND_STCB(inp, stcb, s_info->sinfo_assoc_id);
5131
5132                         if (stcb) {
5133                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5134                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5135                                 } else {
5136                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5137                                         error = EINVAL;
5138                                 }
5139                                 SCTP_TCB_UNLOCK(stcb);
5140                         } else {
5141                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5142                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5143                                     (s_info->sinfo_assoc_id == SCTP_FUTURE_ASSOC) ||
5144                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5145                                         SCTP_INP_WLOCK(inp);
5146                                         memcpy(&inp->def_send, s_info, min(optsize, sizeof(inp->def_send)));
5147                                         SCTP_INP_WUNLOCK(inp);
5148                                 }
5149                                 if ((s_info->sinfo_assoc_id == SCTP_CURRENT_ASSOC) ||
5150                                     (s_info->sinfo_assoc_id == SCTP_ALL_ASSOC)) {
5151                                         SCTP_INP_RLOCK(inp);
5152                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
5153                                                 SCTP_TCB_LOCK(stcb);
5154                                                 if (s_info->sinfo_stream < stcb->asoc.streamoutcnt) {
5155                                                         memcpy(&stcb->asoc.def_send, s_info, min(optsize, sizeof(stcb->asoc.def_send)));
5156                                                 }
5157                                                 SCTP_TCB_UNLOCK(stcb);
5158                                         }
5159                                         SCTP_INP_RUNLOCK(inp);
5160                                 }
5161                         }
5162                         break;
5163                 }
5164         case SCTP_PEER_ADDR_PARAMS:
5165                 {
5166                         struct sctp_paddrparams *paddrp;
5167                         struct sctp_nets *net;
5168                         struct sockaddr *addr;
5169
5170 #if defined(INET) && defined(INET6)
5171                         struct sockaddr_in sin_store;
5172
5173 #endif
5174
5175                         SCTP_CHECK_AND_CAST(paddrp, optval, struct sctp_paddrparams, optsize);
5176                         SCTP_FIND_STCB(inp, stcb, paddrp->spp_assoc_id);
5177
5178 #if defined(INET) && defined(INET6)
5179                         if (paddrp->spp_address.ss_family == AF_INET6) {
5180                                 struct sockaddr_in6 *sin6;
5181
5182                                 sin6 = (struct sockaddr_in6 *)&paddrp->spp_address;
5183                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5184                                         in6_sin6_2_sin(&sin_store, sin6);
5185                                         addr = (struct sockaddr *)&sin_store;
5186                                 } else {
5187                                         addr = (struct sockaddr *)&paddrp->spp_address;
5188                                 }
5189                         } else {
5190                                 addr = (struct sockaddr *)&paddrp->spp_address;
5191                         }
5192 #else
5193                         addr = (struct sockaddr *)&paddrp->spp_address;
5194 #endif
5195                         if (stcb != NULL) {
5196                                 net = sctp_findnet(stcb, addr);
5197                         } else {
5198                                 /*
5199                                  * We increment here since
5200                                  * sctp_findassociation_ep_addr() wil do a
5201                                  * decrement if it finds the stcb as long as
5202                                  * the locked tcb (last argument) is NOT a
5203                                  * TCB.. aka NULL.
5204                                  */
5205                                 net = NULL;
5206                                 SCTP_INP_INCR_REF(inp);
5207                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5208                                     &net, NULL, NULL);
5209                                 if (stcb == NULL) {
5210                                         SCTP_INP_DECR_REF(inp);
5211                                 }
5212                         }
5213                         if ((stcb != NULL) && (net == NULL)) {
5214 #ifdef INET
5215                                 if (addr->sa_family == AF_INET) {
5216
5217                                         struct sockaddr_in *sin;
5218
5219                                         sin = (struct sockaddr_in *)addr;
5220                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
5221                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5222                                                 SCTP_TCB_UNLOCK(stcb);
5223                                                 error = EINVAL;
5224                                                 break;
5225                                         }
5226                                 } else
5227 #endif
5228 #ifdef INET6
5229                                 if (addr->sa_family == AF_INET6) {
5230                                         struct sockaddr_in6 *sin6;
5231
5232                                         sin6 = (struct sockaddr_in6 *)addr;
5233                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
5234                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5235                                                 SCTP_TCB_UNLOCK(stcb);
5236                                                 error = EINVAL;
5237                                                 break;
5238                                         }
5239                                 } else
5240 #endif
5241                                 {
5242                                         error = EAFNOSUPPORT;
5243                                         SCTP_TCB_UNLOCK(stcb);
5244                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
5245                                         break;
5246                                 }
5247                         }
5248                         /* sanity checks */
5249                         if ((paddrp->spp_flags & SPP_HB_ENABLE) && (paddrp->spp_flags & SPP_HB_DISABLE)) {
5250                                 if (stcb)
5251                                         SCTP_TCB_UNLOCK(stcb);
5252                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5253                                 return (EINVAL);
5254                         }
5255                         if ((paddrp->spp_flags & SPP_PMTUD_ENABLE) && (paddrp->spp_flags & SPP_PMTUD_DISABLE)) {
5256                                 if (stcb)
5257                                         SCTP_TCB_UNLOCK(stcb);
5258                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5259                                 return (EINVAL);
5260                         }
5261                         if (stcb != NULL) {
5262                                 /************************TCB SPECIFIC SET ******************/
5263                                 if (net != NULL) {
5264                                         /************************NET SPECIFIC SET ******************/
5265                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5266                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED) &&
5267                                                     !(net->dest_state & SCTP_ADDR_NOHB)) {
5268                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5269                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_9);
5270                                                 }
5271                                                 net->dest_state |= SCTP_ADDR_NOHB;
5272                                         }
5273                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5274                                                 if (paddrp->spp_hbinterval) {
5275                                                         net->heart_beat_delay = paddrp->spp_hbinterval;
5276                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5277                                                         net->heart_beat_delay = 0;
5278                                                 }
5279                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5280                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_10);
5281                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5282                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5283                                         }
5284                                         if (paddrp->spp_flags & SPP_HB_DEMAND) {
5285                                                 /* on demand HB */
5286                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5287                                                 sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SOCKOPT, SCTP_SO_LOCKED);
5288                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5289                                         }
5290                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5291                                                 if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5292                                                         sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5293                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_11);
5294                                                 }
5295                                                 net->dest_state |= SCTP_ADDR_NO_PMTUD;
5296                                                 net->mtu = paddrp->spp_pathmtu;
5297                                                 switch (net->ro._l_addr.sa.sa_family) {
5298 #ifdef INET
5299                                                 case AF_INET:
5300                                                         net->mtu += SCTP_MIN_V4_OVERHEAD;
5301                                                         break;
5302 #endif
5303 #ifdef INET6
5304                                                 case AF_INET6:
5305                                                         net->mtu += SCTP_MIN_OVERHEAD;
5306                                                         break;
5307 #endif
5308                                                 default:
5309                                                         break;
5310                                                 }
5311                                                 if (net->mtu < stcb->asoc.smallest_mtu) {
5312                                                         sctp_pathmtu_adjustment(stcb, net->mtu);
5313                                                 }
5314                                         }
5315                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5316                                                 if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5317                                                         sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5318                                                 }
5319                                                 net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5320                                         }
5321                                         if (paddrp->spp_pathmaxrxt) {
5322                                                 if (net->dest_state & SCTP_ADDR_PF) {
5323                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5324                                                                 net->dest_state &= ~SCTP_ADDR_PF;
5325                                                         }
5326                                                 } else {
5327                                                         if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5328                                                             (net->error_count > net->pf_threshold)) {
5329                                                                 net->dest_state |= SCTP_ADDR_PF;
5330                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5331                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5332                                                                     stcb->sctp_ep, stcb, net,
5333                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_12);
5334                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5335                                                         }
5336                                                 }
5337                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
5338                                                         if (net->error_count > paddrp->spp_pathmaxrxt) {
5339                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
5340                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5341                                                         }
5342                                                 } else {
5343                                                         if (net->error_count <= paddrp->spp_pathmaxrxt) {
5344                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
5345                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5346                                                         }
5347                                                 }
5348                                                 net->failure_threshold = paddrp->spp_pathmaxrxt;
5349                                         }
5350                                         if (paddrp->spp_flags & SPP_DSCP) {
5351                                                 net->dscp = paddrp->spp_dscp & 0xfc;
5352                                                 net->dscp |= 0x01;
5353                                         }
5354 #ifdef INET6
5355                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5356                                                 if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5357                                                         net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5358                                                         net->flowlabel |= 0x80000000;
5359                                                 }
5360                                         }
5361 #endif
5362                                 } else {
5363                                         /************************ASSOC ONLY -- NO NET SPECIFIC SET ******************/
5364                                         if (paddrp->spp_pathmaxrxt != 0) {
5365                                                 stcb->asoc.def_net_failure = paddrp->spp_pathmaxrxt;
5366                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5367                                                         if (net->dest_state & SCTP_ADDR_PF) {
5368                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5369                                                                         net->dest_state &= ~SCTP_ADDR_PF;
5370                                                                 }
5371                                                         } else {
5372                                                                 if ((net->error_count <= paddrp->spp_pathmaxrxt) &&
5373                                                                     (net->error_count > net->pf_threshold)) {
5374                                                                         net->dest_state |= SCTP_ADDR_PF;
5375                                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
5376                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5377                                                                             stcb->sctp_ep, stcb, net,
5378                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_13);
5379                                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
5380                                                                 }
5381                                                         }
5382                                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
5383                                                                 if (net->error_count > paddrp->spp_pathmaxrxt) {
5384                                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
5385                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
5386                                                                 }
5387                                                         } else {
5388                                                                 if (net->error_count <= paddrp->spp_pathmaxrxt) {
5389                                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
5390                                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
5391                                                                 }
5392                                                         }
5393                                                         net->failure_threshold = paddrp->spp_pathmaxrxt;
5394                                                 }
5395                                         }
5396                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
5397                                                 if (paddrp->spp_hbinterval != 0) {
5398                                                         stcb->asoc.heart_beat_delay = paddrp->spp_hbinterval;
5399                                                 } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5400                                                         stcb->asoc.heart_beat_delay = 0;
5401                                                 }
5402                                                 /* Turn back on the timer */
5403                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5404                                                         if (paddrp->spp_hbinterval != 0) {
5405                                                                 net->heart_beat_delay = paddrp->spp_hbinterval;
5406                                                         } else if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO) {
5407                                                                 net->heart_beat_delay = 0;
5408                                                         }
5409                                                         if (net->dest_state & SCTP_ADDR_NOHB) {
5410                                                                 net->dest_state &= ~SCTP_ADDR_NOHB;
5411                                                         }
5412                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net,
5413                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_14);
5414                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net);
5415                                                 }
5416                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5417                                         }
5418                                         if (paddrp->spp_flags & SPP_HB_DISABLE) {
5419                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5420                                                         if (!(net->dest_state & SCTP_ADDR_NOHB)) {
5421                                                                 net->dest_state |= SCTP_ADDR_NOHB;
5422                                                                 if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5423                                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
5424                                                                             inp, stcb, net,
5425                                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_15);
5426                                                                 }
5427                                                         }
5428                                                 }
5429                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5430                                         }
5431                                         if ((paddrp->spp_flags & SPP_PMTUD_DISABLE) && (paddrp->spp_pathmtu >= SCTP_SMALLEST_PMTU)) {
5432                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5433                                                         if (SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5434                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net,
5435                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_16);
5436                                                         }
5437                                                         net->dest_state |= SCTP_ADDR_NO_PMTUD;
5438                                                         net->mtu = paddrp->spp_pathmtu;
5439                                                         switch (net->ro._l_addr.sa.sa_family) {
5440 #ifdef INET
5441                                                         case AF_INET:
5442                                                                 net->mtu += SCTP_MIN_V4_OVERHEAD;
5443                                                                 break;
5444 #endif
5445 #ifdef INET6
5446                                                         case AF_INET6:
5447                                                                 net->mtu += SCTP_MIN_OVERHEAD;
5448                                                                 break;
5449 #endif
5450                                                         default:
5451                                                                 break;
5452                                                         }
5453                                                         if (net->mtu < stcb->asoc.smallest_mtu) {
5454                                                                 sctp_pathmtu_adjustment(stcb, net->mtu);
5455                                                         }
5456                                                 }
5457                                                 sctp_stcb_feature_on(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5458                                         }
5459                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5460                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5461                                                         if (!SCTP_OS_TIMER_PENDING(&net->pmtu_timer.timer)) {
5462                                                                 sctp_timer_start(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net);
5463                                                         }
5464                                                         net->dest_state &= ~SCTP_ADDR_NO_PMTUD;
5465                                                 }
5466                                                 sctp_stcb_feature_off(inp, stcb, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5467                                         }
5468                                         if (paddrp->spp_flags & SPP_DSCP) {
5469                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5470                                                         net->dscp = paddrp->spp_dscp & 0xfc;
5471                                                         net->dscp |= 0x01;
5472                                                 }
5473                                                 stcb->asoc.default_dscp = paddrp->spp_dscp & 0xfc;
5474                                                 stcb->asoc.default_dscp |= 0x01;
5475                                         }
5476 #ifdef INET6
5477                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5478                                                 TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
5479                                                         if (net->ro._l_addr.sa.sa_family == AF_INET6) {
5480                                                                 net->flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5481                                                                 net->flowlabel |= 0x80000000;
5482                                                         }
5483                                                 }
5484                                                 stcb->asoc.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5485                                                 stcb->asoc.default_flowlabel |= 0x80000000;
5486                                         }
5487 #endif
5488                                 }
5489                                 SCTP_TCB_UNLOCK(stcb);
5490                         } else {
5491                                 /************************NO TCB, SET TO default stuff ******************/
5492                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5493                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5494                                     (paddrp->spp_assoc_id == SCTP_FUTURE_ASSOC)) {
5495                                         SCTP_INP_WLOCK(inp);
5496                                         /*
5497                                          * For the TOS/FLOWLABEL stuff you
5498                                          * set it with the options on the
5499                                          * socket
5500                                          */
5501                                         if (paddrp->spp_pathmaxrxt != 0) {
5502                                                 inp->sctp_ep.def_net_failure = paddrp->spp_pathmaxrxt;
5503                                         }
5504                                         if (paddrp->spp_flags & SPP_HB_TIME_IS_ZERO)
5505                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = 0;
5506                                         else if (paddrp->spp_hbinterval != 0) {
5507                                                 if (paddrp->spp_hbinterval > SCTP_MAX_HB_INTERVAL)
5508                                                         paddrp->spp_hbinterval = SCTP_MAX_HB_INTERVAL;
5509                                                 inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5510                                         }
5511                                         if (paddrp->spp_flags & SPP_HB_ENABLE) {
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) {
5515                                                         inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT] = MSEC_TO_TICKS(paddrp->spp_hbinterval);
5516                                                 }
5517                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5518                                         } else if (paddrp->spp_flags & SPP_HB_DISABLE) {
5519                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DONOT_HEARTBEAT);
5520                                         }
5521                                         if (paddrp->spp_flags & SPP_PMTUD_ENABLE) {
5522                                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5523                                         } else if (paddrp->spp_flags & SPP_PMTUD_DISABLE) {
5524                                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_DO_NOT_PMTUD);
5525                                         }
5526                                         if (paddrp->spp_flags & SPP_DSCP) {
5527                                                 inp->sctp_ep.default_dscp = paddrp->spp_dscp & 0xfc;
5528                                                 inp->sctp_ep.default_dscp |= 0x01;
5529                                         }
5530 #ifdef INET6
5531                                         if (paddrp->spp_flags & SPP_IPV6_FLOWLABEL) {
5532                                                 if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
5533                                                         inp->sctp_ep.default_flowlabel = paddrp->spp_ipv6_flowlabel & 0x000fffff;
5534                                                         inp->sctp_ep.default_flowlabel |= 0x80000000;
5535                                                 }
5536                                         }
5537 #endif
5538                                         SCTP_INP_WUNLOCK(inp);
5539                                 } else {
5540                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5541                                         error = EINVAL;
5542                                 }
5543                         }
5544                         break;
5545                 }
5546         case SCTP_RTOINFO:
5547                 {
5548                         struct sctp_rtoinfo *srto;
5549                         uint32_t new_init, new_min, new_max;
5550
5551                         SCTP_CHECK_AND_CAST(srto, optval, struct sctp_rtoinfo, optsize);
5552                         SCTP_FIND_STCB(inp, stcb, srto->srto_assoc_id);
5553
5554                         if (stcb) {
5555                                 if (srto->srto_initial)
5556                                         new_init = srto->srto_initial;
5557                                 else
5558                                         new_init = stcb->asoc.initial_rto;
5559                                 if (srto->srto_max)
5560                                         new_max = srto->srto_max;
5561                                 else
5562                                         new_max = stcb->asoc.maxrto;
5563                                 if (srto->srto_min)
5564                                         new_min = srto->srto_min;
5565                                 else
5566                                         new_min = stcb->asoc.minrto;
5567                                 if ((new_min <= new_init) && (new_init <= new_max)) {
5568                                         stcb->asoc.initial_rto = new_init;
5569                                         stcb->asoc.maxrto = new_max;
5570                                         stcb->asoc.minrto = new_min;
5571                                 } else {
5572                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5573                                         error = EINVAL;
5574                                 }
5575                                 SCTP_TCB_UNLOCK(stcb);
5576                         } else {
5577                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5578                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5579                                     (srto->srto_assoc_id == SCTP_FUTURE_ASSOC)) {
5580                                         SCTP_INP_WLOCK(inp);
5581                                         if (srto->srto_initial)
5582                                                 new_init = srto->srto_initial;
5583                                         else
5584                                                 new_init = inp->sctp_ep.initial_rto;
5585                                         if (srto->srto_max)
5586                                                 new_max = srto->srto_max;
5587                                         else
5588                                                 new_max = inp->sctp_ep.sctp_maxrto;
5589                                         if (srto->srto_min)
5590                                                 new_min = srto->srto_min;
5591                                         else
5592                                                 new_min = inp->sctp_ep.sctp_minrto;
5593                                         if ((new_min <= new_init) && (new_init <= new_max)) {
5594                                                 inp->sctp_ep.initial_rto = new_init;
5595                                                 inp->sctp_ep.sctp_maxrto = new_max;
5596                                                 inp->sctp_ep.sctp_minrto = new_min;
5597                                         } else {
5598                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5599                                                 error = EINVAL;
5600                                         }
5601                                         SCTP_INP_WUNLOCK(inp);
5602                                 } else {
5603                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5604                                         error = EINVAL;
5605                                 }
5606                         }
5607                         break;
5608                 }
5609         case SCTP_ASSOCINFO:
5610                 {
5611                         struct sctp_assocparams *sasoc;
5612
5613                         SCTP_CHECK_AND_CAST(sasoc, optval, struct sctp_assocparams, optsize);
5614                         SCTP_FIND_STCB(inp, stcb, sasoc->sasoc_assoc_id);
5615                         if (sasoc->sasoc_cookie_life) {
5616                                 /* boundary check the cookie life */
5617                                 if (sasoc->sasoc_cookie_life < 1000)
5618                                         sasoc->sasoc_cookie_life = 1000;
5619                                 if (sasoc->sasoc_cookie_life > SCTP_MAX_COOKIE_LIFE) {
5620                                         sasoc->sasoc_cookie_life = SCTP_MAX_COOKIE_LIFE;
5621                                 }
5622                         }
5623                         if (stcb) {
5624                                 if (sasoc->sasoc_asocmaxrxt)
5625                                         stcb->asoc.max_send_times = sasoc->sasoc_asocmaxrxt;
5626                                 if (sasoc->sasoc_cookie_life) {
5627                                         stcb->asoc.cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5628                                 }
5629                                 SCTP_TCB_UNLOCK(stcb);
5630                         } else {
5631                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
5632                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
5633                                     (sasoc->sasoc_assoc_id == SCTP_FUTURE_ASSOC)) {
5634                                         SCTP_INP_WLOCK(inp);
5635                                         if (sasoc->sasoc_asocmaxrxt)
5636                                                 inp->sctp_ep.max_send_times = sasoc->sasoc_asocmaxrxt;
5637                                         if (sasoc->sasoc_cookie_life) {
5638                                                 inp->sctp_ep.def_cookie_life = MSEC_TO_TICKS(sasoc->sasoc_cookie_life);
5639                                         }
5640                                         SCTP_INP_WUNLOCK(inp);
5641                                 } else {
5642                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5643                                         error = EINVAL;
5644                                 }
5645                         }
5646                         break;
5647                 }
5648         case SCTP_INITMSG:
5649                 {
5650                         struct sctp_initmsg *sinit;
5651
5652                         SCTP_CHECK_AND_CAST(sinit, optval, struct sctp_initmsg, optsize);
5653                         SCTP_INP_WLOCK(inp);
5654                         if (sinit->sinit_num_ostreams)
5655                                 inp->sctp_ep.pre_open_stream_count = sinit->sinit_num_ostreams;
5656
5657                         if (sinit->sinit_max_instreams)
5658                                 inp->sctp_ep.max_open_streams_intome = sinit->sinit_max_instreams;
5659
5660                         if (sinit->sinit_max_attempts)
5661                                 inp->sctp_ep.max_init_times = sinit->sinit_max_attempts;
5662
5663                         if (sinit->sinit_max_init_timeo)
5664                                 inp->sctp_ep.initial_init_rto_max = sinit->sinit_max_init_timeo;
5665                         SCTP_INP_WUNLOCK(inp);
5666                         break;
5667                 }
5668         case SCTP_PRIMARY_ADDR:
5669                 {
5670                         struct sctp_setprim *spa;
5671                         struct sctp_nets *net;
5672                         struct sockaddr *addr;
5673
5674 #if defined(INET) && defined(INET6)
5675                         struct sockaddr_in sin_store;
5676
5677 #endif
5678
5679                         SCTP_CHECK_AND_CAST(spa, optval, struct sctp_setprim, optsize);
5680                         SCTP_FIND_STCB(inp, stcb, spa->ssp_assoc_id);
5681
5682 #if defined(INET) && defined(INET6)
5683                         if (spa->ssp_addr.ss_family == AF_INET6) {
5684                                 struct sockaddr_in6 *sin6;
5685
5686                                 sin6 = (struct sockaddr_in6 *)&spa->ssp_addr;
5687                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5688                                         in6_sin6_2_sin(&sin_store, sin6);
5689                                         addr = (struct sockaddr *)&sin_store;
5690                                 } else {
5691                                         addr = (struct sockaddr *)&spa->ssp_addr;
5692                                 }
5693                         } else {
5694                                 addr = (struct sockaddr *)&spa->ssp_addr;
5695                         }
5696 #else
5697                         addr = (struct sockaddr *)&spa->ssp_addr;
5698 #endif
5699                         if (stcb != NULL) {
5700                                 net = sctp_findnet(stcb, addr);
5701                         } else {
5702                                 /*
5703                                  * We increment here since
5704                                  * sctp_findassociation_ep_addr() wil do a
5705                                  * decrement if it finds the stcb as long as
5706                                  * the locked tcb (last argument) is NOT a
5707                                  * TCB.. aka NULL.
5708                                  */
5709                                 net = NULL;
5710                                 SCTP_INP_INCR_REF(inp);
5711                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
5712                                     &net, NULL, NULL);
5713                                 if (stcb == NULL) {
5714                                         SCTP_INP_DECR_REF(inp);
5715                                 }
5716                         }
5717
5718                         if ((stcb != NULL) && (net != NULL)) {
5719                                 if (net != stcb->asoc.primary_destination) {
5720                                         if (!(net->dest_state & SCTP_ADDR_UNCONFIRMED)) {
5721                                                 /* Ok we need to set it */
5722                                                 if (sctp_set_primary_addr(stcb, (struct sockaddr *)NULL, net) == 0) {
5723                                                         if ((stcb->asoc.alternate) &&
5724                                                             (!(net->dest_state & SCTP_ADDR_PF)) &&
5725                                                             (net->dest_state & SCTP_ADDR_REACHABLE)) {
5726                                                                 sctp_free_remote_addr(stcb->asoc.alternate);
5727                                                                 stcb->asoc.alternate = NULL;
5728                                                         }
5729                                                 } else {
5730                                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5731                                                         error = EINVAL;
5732                                                 }
5733                                         } else {
5734                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5735                                                 error = EINVAL;
5736                                         }
5737                                 }
5738                         } else {
5739                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5740                                 error = EINVAL;
5741                         }
5742                         if (stcb != NULL) {
5743                                 SCTP_TCB_UNLOCK(stcb);
5744                         }
5745                         break;
5746                 }
5747         case SCTP_SET_DYNAMIC_PRIMARY:
5748                 {
5749                         union sctp_sockstore *ss;
5750
5751                         error = priv_check(curthread,
5752                             PRIV_NETINET_RESERVEDPORT);
5753                         if (error)
5754                                 break;
5755
5756                         SCTP_CHECK_AND_CAST(ss, optval, union sctp_sockstore, optsize);
5757                         /* SUPER USER CHECK? */
5758                         error = sctp_dynamic_set_primary(&ss->sa, vrf_id);
5759                         break;
5760                 }
5761         case SCTP_SET_PEER_PRIMARY_ADDR:
5762                 {
5763                         struct sctp_setpeerprim *sspp;
5764                         struct sockaddr *addr;
5765
5766 #if defined(INET) && defined(INET6)
5767                         struct sockaddr_in sin_store;
5768
5769 #endif
5770
5771                         SCTP_CHECK_AND_CAST(sspp, optval, struct sctp_setpeerprim, optsize);
5772                         SCTP_FIND_STCB(inp, stcb, sspp->sspp_assoc_id);
5773                         if (stcb != NULL) {
5774                                 struct sctp_ifa *ifa;
5775
5776 #if defined(INET) && defined(INET6)
5777                                 if (sspp->sspp_addr.ss_family == AF_INET6) {
5778                                         struct sockaddr_in6 *sin6;
5779
5780                                         sin6 = (struct sockaddr_in6 *)&sspp->sspp_addr;
5781                                         if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
5782                                                 in6_sin6_2_sin(&sin_store, sin6);
5783                                                 addr = (struct sockaddr *)&sin_store;
5784                                         } else {
5785                                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5786                                         }
5787                                 } else {
5788                                         addr = (struct sockaddr *)&sspp->sspp_addr;
5789                                 }
5790 #else
5791                                 addr = (struct sockaddr *)&sspp->sspp_addr;
5792 #endif
5793                                 ifa = sctp_find_ifa_by_addr(addr, stcb->asoc.vrf_id, SCTP_ADDR_NOT_LOCKED);
5794                                 if (ifa == NULL) {
5795                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5796                                         error = EINVAL;
5797                                         goto out_of_it;
5798                                 }
5799                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
5800                                         /*
5801                                          * Must validate the ifa found is in
5802                                          * our ep
5803                                          */
5804                                         struct sctp_laddr *laddr;
5805                                         int found = 0;
5806
5807                                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
5808                                                 if (laddr->ifa == NULL) {
5809                                                         SCTPDBG(SCTP_DEBUG_OUTPUT1, "%s: NULL ifa\n",
5810                                                             __func__);
5811                                                         continue;
5812                                                 }
5813                                                 if (laddr->ifa == ifa) {
5814                                                         found = 1;
5815                                                         break;
5816                                                 }
5817                                         }
5818                                         if (!found) {
5819                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5820                                                 error = EINVAL;
5821                                                 goto out_of_it;
5822                                         }
5823                                 } else {
5824                                         switch (addr->sa_family) {
5825 #ifdef INET
5826                                         case AF_INET:
5827                                                 {
5828                                                         struct sockaddr_in *sin;
5829
5830                                                         sin = (struct sockaddr_in *)addr;
5831                                                         if (prison_check_ip4(inp->ip_inp.inp.inp_cred,
5832                                                             &sin->sin_addr) != 0) {
5833                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5834                                                                 error = EINVAL;
5835                                                                 goto out_of_it;
5836                                                         }
5837                                                         break;
5838                                                 }
5839 #endif
5840 #ifdef INET6
5841                                         case AF_INET6:
5842                                                 {
5843                                                         struct sockaddr_in6 *sin6;
5844
5845                                                         sin6 = (struct sockaddr_in6 *)addr;
5846                                                         if (prison_check_ip6(inp->ip_inp.inp.inp_cred,
5847                                                             &sin6->sin6_addr) != 0) {
5848                                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5849                                                                 error = EINVAL;
5850                                                                 goto out_of_it;
5851                                                         }
5852                                                         break;
5853                                                 }
5854 #endif
5855                                         default:
5856                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5857                                                 error = EINVAL;
5858                                                 goto out_of_it;
5859                                         }
5860                                 }
5861                                 if (sctp_set_primary_ip_address_sa(stcb, addr) != 0) {
5862                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5863                                         error = EINVAL;
5864                                 }
5865                 out_of_it:
5866                                 SCTP_TCB_UNLOCK(stcb);
5867                         } else {
5868                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5869                                 error = EINVAL;
5870                         }
5871                         break;
5872                 }
5873         case SCTP_BINDX_ADD_ADDR:
5874                 {
5875                         struct sctp_getaddresses *addrs;
5876                         struct thread *td;
5877
5878                         td = (struct thread *)p;
5879                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses,
5880                             optsize);
5881 #ifdef INET
5882                         if (addrs->addr->sa_family == AF_INET) {
5883                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5884                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5885                                         error = EINVAL;
5886                                         break;
5887                                 }
5888                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5889                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5890                                         break;
5891                                 }
5892                         } else
5893 #endif
5894 #ifdef INET6
5895                         if (addrs->addr->sa_family == AF_INET6) {
5896                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5897                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5898                                         error = EINVAL;
5899                                         break;
5900                                 }
5901                                 if (td != NULL && (error = prison_local_ip6(td->td_ucred, &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5902                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5903                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5904                                         break;
5905                                 }
5906                         } else
5907 #endif
5908                         {
5909                                 error = EAFNOSUPPORT;
5910                                 break;
5911                         }
5912                         sctp_bindx_add_address(so, inp, addrs->addr,
5913                             addrs->sget_assoc_id, vrf_id,
5914                             &error, p);
5915                         break;
5916                 }
5917         case SCTP_BINDX_REM_ADDR:
5918                 {
5919                         struct sctp_getaddresses *addrs;
5920                         struct thread *td;
5921
5922                         td = (struct thread *)p;
5923
5924                         SCTP_CHECK_AND_CAST(addrs, optval, struct sctp_getaddresses, optsize);
5925 #ifdef INET
5926                         if (addrs->addr->sa_family == AF_INET) {
5927                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in)) {
5928                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5929                                         error = EINVAL;
5930                                         break;
5931                                 }
5932                                 if (td != NULL && (error = prison_local_ip4(td->td_ucred, &(((struct sockaddr_in *)(addrs->addr))->sin_addr)))) {
5933                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5934                                         break;
5935                                 }
5936                         } else
5937 #endif
5938 #ifdef INET6
5939                         if (addrs->addr->sa_family == AF_INET6) {
5940                                 if (optsize < sizeof(struct sctp_getaddresses) - sizeof(struct sockaddr) + sizeof(struct sockaddr_in6)) {
5941                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
5942                                         error = EINVAL;
5943                                         break;
5944                                 }
5945                                 if (td != NULL &&
5946                                     (error = prison_local_ip6(td->td_ucred,
5947                                     &(((struct sockaddr_in6 *)(addrs->addr))->sin6_addr),
5948                                     (SCTP_IPV6_V6ONLY(inp) != 0))) != 0) {
5949                                         SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, error);
5950                                         break;
5951                                 }
5952                         } else
5953 #endif
5954                         {
5955                                 error = EAFNOSUPPORT;
5956                                 break;
5957                         }
5958                         sctp_bindx_delete_address(inp, addrs->addr,
5959                             addrs->sget_assoc_id, vrf_id,
5960                             &error);
5961                         break;
5962                 }
5963         case SCTP_EVENT:
5964                 {
5965                         struct sctp_event *event;
5966                         uint32_t event_type;
5967
5968                         SCTP_CHECK_AND_CAST(event, optval, struct sctp_event, optsize);
5969                         SCTP_FIND_STCB(inp, stcb, event->se_assoc_id);
5970                         switch (event->se_type) {
5971                         case SCTP_ASSOC_CHANGE:
5972                                 event_type = SCTP_PCB_FLAGS_RECVASSOCEVNT;
5973                                 break;
5974                         case SCTP_PEER_ADDR_CHANGE:
5975                                 event_type = SCTP_PCB_FLAGS_RECVPADDREVNT;
5976                                 break;
5977                         case SCTP_REMOTE_ERROR:
5978                                 event_type = SCTP_PCB_FLAGS_RECVPEERERR;
5979                                 break;
5980                         case SCTP_SEND_FAILED:
5981                                 event_type = SCTP_PCB_FLAGS_RECVSENDFAILEVNT;
5982                                 break;
5983                         case SCTP_SHUTDOWN_EVENT:
5984                                 event_type = SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT;
5985                                 break;
5986                         case SCTP_ADAPTATION_INDICATION:
5987                                 event_type = SCTP_PCB_FLAGS_ADAPTATIONEVNT;
5988                                 break;
5989                         case SCTP_PARTIAL_DELIVERY_EVENT:
5990                                 event_type = SCTP_PCB_FLAGS_PDAPIEVNT;
5991                                 break;
5992                         case SCTP_AUTHENTICATION_EVENT:
5993                                 event_type = SCTP_PCB_FLAGS_AUTHEVNT;
5994                                 break;
5995                         case SCTP_STREAM_RESET_EVENT:
5996                                 event_type = SCTP_PCB_FLAGS_STREAM_RESETEVNT;
5997                                 break;
5998                         case SCTP_SENDER_DRY_EVENT:
5999                                 event_type = SCTP_PCB_FLAGS_DRYEVNT;
6000                                 break;
6001                         case SCTP_NOTIFICATIONS_STOPPED_EVENT:
6002                                 event_type = 0;
6003                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6004                                 error = ENOTSUP;
6005                                 break;
6006                         case SCTP_ASSOC_RESET_EVENT:
6007                                 event_type = SCTP_PCB_FLAGS_ASSOC_RESETEVNT;
6008                                 break;
6009                         case SCTP_STREAM_CHANGE_EVENT:
6010                                 event_type = SCTP_PCB_FLAGS_STREAM_CHANGEEVNT;
6011                                 break;
6012                         case SCTP_SEND_FAILED_EVENT:
6013                                 event_type = SCTP_PCB_FLAGS_RECVNSENDFAILEVNT;
6014                                 break;
6015                         default:
6016                                 event_type = 0;
6017                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6018                                 error = EINVAL;
6019                                 break;
6020                         }
6021                         if (event_type > 0) {
6022                                 if (stcb) {
6023                                         if (event->se_on) {
6024                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6025                                                 if (event_type == SCTP_PCB_FLAGS_DRYEVNT) {
6026                                                         if (TAILQ_EMPTY(&stcb->asoc.send_queue) &&
6027                                                             TAILQ_EMPTY(&stcb->asoc.sent_queue) &&
6028                                                             (stcb->asoc.stream_queue_cnt == 0)) {
6029                                                                 sctp_ulp_notify(SCTP_NOTIFY_SENDER_DRY, stcb, 0, NULL, SCTP_SO_LOCKED);
6030                                                         }
6031                                                 }
6032                                         } else {
6033                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6034                                         }
6035                                         SCTP_TCB_UNLOCK(stcb);
6036                                 } else {
6037                                         /*
6038                                          * We don't want to send up a storm
6039                                          * of events, so return an error for
6040                                          * sender dry events
6041                                          */
6042                                         if ((event_type == SCTP_PCB_FLAGS_DRYEVNT) &&
6043                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) == 0) &&
6044                                             ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) == 0) &&
6045                                             ((event->se_assoc_id == SCTP_ALL_ASSOC) ||
6046                                             (event->se_assoc_id == SCTP_CURRENT_ASSOC))) {
6047                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTSUP);
6048                                                 error = ENOTSUP;
6049                                                 break;
6050                                         }
6051                                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6052                                             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6053                                             (event->se_assoc_id == SCTP_FUTURE_ASSOC) ||
6054                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6055                                                 SCTP_INP_WLOCK(inp);
6056                                                 if (event->se_on) {
6057                                                         sctp_feature_on(inp, event_type);
6058                                                 } else {
6059                                                         sctp_feature_off(inp, event_type);
6060                                                 }
6061                                                 SCTP_INP_WUNLOCK(inp);
6062                                         }
6063                                         if ((event->se_assoc_id == SCTP_CURRENT_ASSOC) ||
6064                                             (event->se_assoc_id == SCTP_ALL_ASSOC)) {
6065                                                 SCTP_INP_RLOCK(inp);
6066                                                 LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6067                                                         SCTP_TCB_LOCK(stcb);
6068                                                         if (event->se_on) {
6069                                                                 sctp_stcb_feature_on(inp, stcb, event_type);
6070                                                         } else {
6071                                                                 sctp_stcb_feature_off(inp, stcb, event_type);
6072                                                         }
6073                                                         SCTP_TCB_UNLOCK(stcb);
6074                                                 }
6075                                                 SCTP_INP_RUNLOCK(inp);
6076                                         }
6077                                 }
6078                         }
6079                         break;
6080                 }
6081         case SCTP_RECVRCVINFO:
6082                 {
6083                         int *onoff;
6084
6085                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6086                         SCTP_INP_WLOCK(inp);
6087                         if (*onoff != 0) {
6088                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6089                         } else {
6090                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO);
6091                         }
6092                         SCTP_INP_WUNLOCK(inp);
6093                         break;
6094                 }
6095         case SCTP_RECVNXTINFO:
6096                 {
6097                         int *onoff;
6098
6099                         SCTP_CHECK_AND_CAST(onoff, optval, int, optsize);
6100                         SCTP_INP_WLOCK(inp);
6101                         if (*onoff != 0) {
6102                                 sctp_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6103                         } else {
6104                                 sctp_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO);
6105                         }
6106                         SCTP_INP_WUNLOCK(inp);
6107                         break;
6108                 }
6109         case SCTP_DEFAULT_SNDINFO:
6110                 {
6111                         struct sctp_sndinfo *info;
6112                         uint16_t policy;
6113
6114                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_sndinfo, optsize);
6115                         SCTP_FIND_STCB(inp, stcb, info->snd_assoc_id);
6116
6117                         if (stcb) {
6118                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6119                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6120                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6121                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6122                                         stcb->asoc.def_send.sinfo_flags |= policy;
6123                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6124                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6125                                 } else {
6126                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6127                                         error = EINVAL;
6128                                 }
6129                                 SCTP_TCB_UNLOCK(stcb);
6130                         } else {
6131                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6132                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6133                                     (info->snd_assoc_id == SCTP_FUTURE_ASSOC) ||
6134                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6135                                         SCTP_INP_WLOCK(inp);
6136                                         inp->def_send.sinfo_stream = info->snd_sid;
6137                                         policy = PR_SCTP_POLICY(inp->def_send.sinfo_flags);
6138                                         inp->def_send.sinfo_flags = info->snd_flags;
6139                                         inp->def_send.sinfo_flags |= policy;
6140                                         inp->def_send.sinfo_ppid = info->snd_ppid;
6141                                         inp->def_send.sinfo_context = info->snd_context;
6142                                         SCTP_INP_WUNLOCK(inp);
6143                                 }
6144                                 if ((info->snd_assoc_id == SCTP_CURRENT_ASSOC) ||
6145                                     (info->snd_assoc_id == SCTP_ALL_ASSOC)) {
6146                                         SCTP_INP_RLOCK(inp);
6147                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6148                                                 SCTP_TCB_LOCK(stcb);
6149                                                 if (info->snd_sid < stcb->asoc.streamoutcnt) {
6150                                                         stcb->asoc.def_send.sinfo_stream = info->snd_sid;
6151                                                         policy = PR_SCTP_POLICY(stcb->asoc.def_send.sinfo_flags);
6152                                                         stcb->asoc.def_send.sinfo_flags = info->snd_flags;
6153                                                         stcb->asoc.def_send.sinfo_flags |= policy;
6154                                                         stcb->asoc.def_send.sinfo_ppid = info->snd_ppid;
6155                                                         stcb->asoc.def_send.sinfo_context = info->snd_context;
6156                                                 }
6157                                                 SCTP_TCB_UNLOCK(stcb);
6158                                         }
6159                                         SCTP_INP_RUNLOCK(inp);
6160                                 }
6161                         }
6162                         break;
6163                 }
6164         case SCTP_DEFAULT_PRINFO:
6165                 {
6166                         struct sctp_default_prinfo *info;
6167
6168                         SCTP_CHECK_AND_CAST(info, optval, struct sctp_default_prinfo, optsize);
6169                         SCTP_FIND_STCB(inp, stcb, info->pr_assoc_id);
6170
6171                         if (info->pr_policy > SCTP_PR_SCTP_MAX) {
6172                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6173                                 error = EINVAL;
6174                                 break;
6175                         }
6176                         if (stcb) {
6177                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6178                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6179                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6180                                 SCTP_TCB_UNLOCK(stcb);
6181                         } else {
6182                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6183                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6184                                     (info->pr_assoc_id == SCTP_FUTURE_ASSOC) ||
6185                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6186                                         SCTP_INP_WLOCK(inp);
6187                                         inp->def_send.sinfo_flags &= 0xfff0;
6188                                         inp->def_send.sinfo_flags |= info->pr_policy;
6189                                         inp->def_send.sinfo_timetolive = info->pr_value;
6190                                         SCTP_INP_WUNLOCK(inp);
6191                                 }
6192                                 if ((info->pr_assoc_id == SCTP_CURRENT_ASSOC) ||
6193                                     (info->pr_assoc_id == SCTP_ALL_ASSOC)) {
6194                                         SCTP_INP_RLOCK(inp);
6195                                         LIST_FOREACH(stcb, &inp->sctp_asoc_list, sctp_tcblist) {
6196                                                 SCTP_TCB_LOCK(stcb);
6197                                                 stcb->asoc.def_send.sinfo_flags &= 0xfff0;
6198                                                 stcb->asoc.def_send.sinfo_flags |= info->pr_policy;
6199                                                 stcb->asoc.def_send.sinfo_timetolive = info->pr_value;
6200                                                 SCTP_TCB_UNLOCK(stcb);
6201                                         }
6202                                         SCTP_INP_RUNLOCK(inp);
6203                                 }
6204                         }
6205                         break;
6206                 }
6207         case SCTP_PEER_ADDR_THLDS:
6208                 /* Applies to the specific association */
6209                 {
6210                         struct sctp_paddrthlds *thlds;
6211                         struct sctp_nets *net;
6212                         struct sockaddr *addr;
6213
6214 #if defined(INET) && defined(INET6)
6215                         struct sockaddr_in sin_store;
6216
6217 #endif
6218
6219                         SCTP_CHECK_AND_CAST(thlds, optval, struct sctp_paddrthlds, optsize);
6220                         SCTP_FIND_STCB(inp, stcb, thlds->spt_assoc_id);
6221
6222 #if defined(INET) && defined(INET6)
6223                         if (thlds->spt_address.ss_family == AF_INET6) {
6224                                 struct sockaddr_in6 *sin6;
6225
6226                                 sin6 = (struct sockaddr_in6 *)&thlds->spt_address;
6227                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6228                                         in6_sin6_2_sin(&sin_store, sin6);
6229                                         addr = (struct sockaddr *)&sin_store;
6230                                 } else {
6231                                         addr = (struct sockaddr *)&thlds->spt_address;
6232                                 }
6233                         } else {
6234                                 addr = (struct sockaddr *)&thlds->spt_address;
6235                         }
6236 #else
6237                         addr = (struct sockaddr *)&thlds->spt_address;
6238 #endif
6239                         if (stcb != NULL) {
6240                                 net = sctp_findnet(stcb, addr);
6241                         } else {
6242                                 /*
6243                                  * We increment here since
6244                                  * sctp_findassociation_ep_addr() wil do a
6245                                  * decrement if it finds the stcb as long as
6246                                  * the locked tcb (last argument) is NOT a
6247                                  * TCB.. aka NULL.
6248                                  */
6249                                 net = NULL;
6250                                 SCTP_INP_INCR_REF(inp);
6251                                 stcb = sctp_findassociation_ep_addr(&inp, addr,
6252                                     &net, NULL, NULL);
6253                                 if (stcb == NULL) {
6254                                         SCTP_INP_DECR_REF(inp);
6255                                 }
6256                         }
6257                         if ((stcb != NULL) && (net == NULL)) {
6258 #ifdef INET
6259                                 if (addr->sa_family == AF_INET) {
6260
6261                                         struct sockaddr_in *sin;
6262
6263                                         sin = (struct sockaddr_in *)addr;
6264                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6265                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6266                                                 SCTP_TCB_UNLOCK(stcb);
6267                                                 error = EINVAL;
6268                                                 break;
6269                                         }
6270                                 } else
6271 #endif
6272 #ifdef INET6
6273                                 if (addr->sa_family == AF_INET6) {
6274                                         struct sockaddr_in6 *sin6;
6275
6276                                         sin6 = (struct sockaddr_in6 *)addr;
6277                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6278                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6279                                                 SCTP_TCB_UNLOCK(stcb);
6280                                                 error = EINVAL;
6281                                                 break;
6282                                         }
6283                                 } else
6284 #endif
6285                                 {
6286                                         error = EAFNOSUPPORT;
6287                                         SCTP_TCB_UNLOCK(stcb);
6288                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6289                                         break;
6290                                 }
6291                         }
6292                         if (stcb != NULL) {
6293                                 if (net != NULL) {
6294                                         net->failure_threshold = thlds->spt_pathmaxrxt;
6295                                         net->pf_threshold = thlds->spt_pathpfthld;
6296                                         if (net->dest_state & SCTP_ADDR_PF) {
6297                                                 if ((net->error_count > net->failure_threshold) ||
6298                                                     (net->error_count <= net->pf_threshold)) {
6299                                                         net->dest_state &= ~SCTP_ADDR_PF;
6300                                                 }
6301                                         } else {
6302                                                 if ((net->error_count > net->pf_threshold) &&
6303                                                     (net->error_count <= net->failure_threshold)) {
6304                                                         net->dest_state |= SCTP_ADDR_PF;
6305                                                         sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6306                                                         sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6307                                                             stcb->sctp_ep, stcb, net,
6308                                                             SCTP_FROM_SCTP_USRREQ + SCTP_LOC_17);
6309                                                         sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6310                                                 }
6311                                         }
6312                                         if (net->dest_state & SCTP_ADDR_REACHABLE) {
6313                                                 if (net->error_count > net->failure_threshold) {
6314                                                         net->dest_state &= ~SCTP_ADDR_REACHABLE;
6315                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6316                                                 }
6317                                         } else {
6318                                                 if (net->error_count <= net->failure_threshold) {
6319                                                         net->dest_state |= SCTP_ADDR_REACHABLE;
6320                                                         sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6321                                                 }
6322                                         }
6323                                 } else {
6324                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6325                                                 net->failure_threshold = thlds->spt_pathmaxrxt;
6326                                                 net->pf_threshold = thlds->spt_pathpfthld;
6327                                                 if (net->dest_state & SCTP_ADDR_PF) {
6328                                                         if ((net->error_count > net->failure_threshold) ||
6329                                                             (net->error_count <= net->pf_threshold)) {
6330                                                                 net->dest_state &= ~SCTP_ADDR_PF;
6331                                                         }
6332                                                 } else {
6333                                                         if ((net->error_count > net->pf_threshold) &&
6334                                                             (net->error_count <= net->failure_threshold)) {
6335                                                                 net->dest_state |= SCTP_ADDR_PF;
6336                                                                 sctp_send_hb(stcb, net, SCTP_SO_LOCKED);
6337                                                                 sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT,
6338                                                                     stcb->sctp_ep, stcb, net,
6339                                                                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_18);
6340                                                                 sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, stcb->sctp_ep, stcb, net);
6341                                                         }
6342                                                 }
6343                                                 if (net->dest_state & SCTP_ADDR_REACHABLE) {
6344                                                         if (net->error_count > net->failure_threshold) {
6345                                                                 net->dest_state &= ~SCTP_ADDR_REACHABLE;
6346                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_DOWN, stcb, 0, net, SCTP_SO_LOCKED);
6347                                                         }
6348                                                 } else {
6349                                                         if (net->error_count <= net->failure_threshold) {
6350                                                                 net->dest_state |= SCTP_ADDR_REACHABLE;
6351                                                                 sctp_ulp_notify(SCTP_NOTIFY_INTERFACE_UP, stcb, 0, net, SCTP_SO_LOCKED);
6352                                                         }
6353                                                 }
6354                                         }
6355                                         stcb->asoc.def_net_failure = thlds->spt_pathmaxrxt;
6356                                         stcb->asoc.def_net_pf_threshold = thlds->spt_pathpfthld;
6357                                 }
6358                                 SCTP_TCB_UNLOCK(stcb);
6359                         } else {
6360                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6361                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6362                                     (thlds->spt_assoc_id == SCTP_FUTURE_ASSOC)) {
6363                                         SCTP_INP_WLOCK(inp);
6364                                         inp->sctp_ep.def_net_failure = thlds->spt_pathmaxrxt;
6365                                         inp->sctp_ep.def_net_pf_threshold = thlds->spt_pathpfthld;
6366                                         SCTP_INP_WUNLOCK(inp);
6367                                 } else {
6368                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6369                                         error = EINVAL;
6370                                 }
6371                         }
6372                         break;
6373                 }
6374         case SCTP_REMOTE_UDP_ENCAPS_PORT:
6375                 {
6376                         struct sctp_udpencaps *encaps;
6377                         struct sctp_nets *net;
6378                         struct sockaddr *addr;
6379
6380 #if defined(INET) && defined(INET6)
6381                         struct sockaddr_in sin_store;
6382
6383 #endif
6384
6385                         SCTP_CHECK_AND_CAST(encaps, optval, struct sctp_udpencaps, optsize);
6386                         SCTP_FIND_STCB(inp, stcb, encaps->sue_assoc_id);
6387
6388 #if defined(INET) && defined(INET6)
6389                         if (encaps->sue_address.ss_family == AF_INET6) {
6390                                 struct sockaddr_in6 *sin6;
6391
6392                                 sin6 = (struct sockaddr_in6 *)&encaps->sue_address;
6393                                 if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) {
6394                                         in6_sin6_2_sin(&sin_store, sin6);
6395                                         addr = (struct sockaddr *)&sin_store;
6396                                 } else {
6397                                         addr = (struct sockaddr *)&encaps->sue_address;
6398                                 }
6399                         } else {
6400                                 addr = (struct sockaddr *)&encaps->sue_address;
6401                         }
6402 #else
6403                         addr = (struct sockaddr *)&encaps->sue_address;
6404 #endif
6405                         if (stcb != NULL) {
6406                                 net = sctp_findnet(stcb, addr);
6407                         } else {
6408                                 /*
6409                                  * We increment here since
6410                                  * sctp_findassociation_ep_addr() wil do a
6411                                  * decrement if it finds the stcb as long as
6412                                  * the locked tcb (last argument) is NOT a
6413                                  * TCB.. aka NULL.
6414                                  */
6415                                 net = NULL;
6416                                 SCTP_INP_INCR_REF(inp);
6417                                 stcb = sctp_findassociation_ep_addr(&inp, addr, &net, NULL, NULL);
6418                                 if (stcb == NULL) {
6419                                         SCTP_INP_DECR_REF(inp);
6420                                 }
6421                         }
6422                         if ((stcb != NULL) && (net == NULL)) {
6423 #ifdef INET
6424                                 if (addr->sa_family == AF_INET) {
6425
6426                                         struct sockaddr_in *sin;
6427
6428                                         sin = (struct sockaddr_in *)addr;
6429                                         if (sin->sin_addr.s_addr != INADDR_ANY) {
6430                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6431                                                 SCTP_TCB_UNLOCK(stcb);
6432                                                 error = EINVAL;
6433                                                 break;
6434                                         }
6435                                 } else
6436 #endif
6437 #ifdef INET6
6438                                 if (addr->sa_family == AF_INET6) {
6439                                         struct sockaddr_in6 *sin6;
6440
6441                                         sin6 = (struct sockaddr_in6 *)addr;
6442                                         if (!IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) {
6443                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6444                                                 SCTP_TCB_UNLOCK(stcb);
6445                                                 error = EINVAL;
6446                                                 break;
6447                                         }
6448                                 } else
6449 #endif
6450                                 {
6451                                         error = EAFNOSUPPORT;
6452                                         SCTP_TCB_UNLOCK(stcb);
6453                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6454                                         break;
6455                                 }
6456                         }
6457                         if (stcb != NULL) {
6458                                 if (net != NULL) {
6459                                         net->port = encaps->sue_port;
6460                                 } else {
6461                                         stcb->asoc.port = encaps->sue_port;
6462                                 }
6463                                 SCTP_TCB_UNLOCK(stcb);
6464                         } else {
6465                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6466                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6467                                     (encaps->sue_assoc_id == SCTP_FUTURE_ASSOC)) {
6468                                         SCTP_INP_WLOCK(inp);
6469                                         inp->sctp_ep.port = encaps->sue_port;
6470                                         SCTP_INP_WUNLOCK(inp);
6471                                 } else {
6472                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6473                                         error = EINVAL;
6474                                 }
6475                         }
6476                         break;
6477                 }
6478         case SCTP_ECN_SUPPORTED:
6479                 {
6480                         struct sctp_assoc_value *av;
6481
6482                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6483                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6484
6485                         if (stcb) {
6486                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6487                                 error = EINVAL;
6488                                 SCTP_TCB_UNLOCK(stcb);
6489                         } else {
6490                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6491                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6492                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6493                                         SCTP_INP_WLOCK(inp);
6494                                         if (av->assoc_value == 0) {
6495                                                 inp->ecn_supported = 0;
6496                                         } else {
6497                                                 inp->ecn_supported = 1;
6498                                         }
6499                                         SCTP_INP_WUNLOCK(inp);
6500                                 } else {
6501                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6502                                         error = EINVAL;
6503                                 }
6504                         }
6505                         break;
6506                 }
6507         case SCTP_PR_SUPPORTED:
6508                 {
6509                         struct sctp_assoc_value *av;
6510
6511                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6512                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6513
6514                         if (stcb) {
6515                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6516                                 error = EINVAL;
6517                                 SCTP_TCB_UNLOCK(stcb);
6518                         } else {
6519                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6520                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6521                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6522                                         SCTP_INP_WLOCK(inp);
6523                                         if (av->assoc_value == 0) {
6524                                                 inp->prsctp_supported = 0;
6525                                         } else {
6526                                                 inp->prsctp_supported = 1;
6527                                         }
6528                                         SCTP_INP_WUNLOCK(inp);
6529                                 } else {
6530                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6531                                         error = EINVAL;
6532                                 }
6533                         }
6534                         break;
6535                 }
6536         case SCTP_AUTH_SUPPORTED:
6537                 {
6538                         struct sctp_assoc_value *av;
6539
6540                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6541                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6542
6543                         if (stcb) {
6544                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6545                                 error = EINVAL;
6546                                 SCTP_TCB_UNLOCK(stcb);
6547                         } else {
6548                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6549                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6550                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6551                                         if ((av->assoc_value == 0) &&
6552                                             (inp->asconf_supported == 1)) {
6553                                                 /*
6554                                                  * AUTH is required for
6555                                                  * ASCONF
6556                                                  */
6557                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6558                                                 error = EINVAL;
6559                                         } else {
6560                                                 SCTP_INP_WLOCK(inp);
6561                                                 if (av->assoc_value == 0) {
6562                                                         inp->auth_supported = 0;
6563                                                 } else {
6564                                                         inp->auth_supported = 1;
6565                                                 }
6566                                                 SCTP_INP_WUNLOCK(inp);
6567                                         }
6568                                 } else {
6569                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6570                                         error = EINVAL;
6571                                 }
6572                         }
6573                         break;
6574                 }
6575         case SCTP_ASCONF_SUPPORTED:
6576                 {
6577                         struct sctp_assoc_value *av;
6578
6579                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6580                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6581
6582                         if (stcb) {
6583                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6584                                 error = EINVAL;
6585                                 SCTP_TCB_UNLOCK(stcb);
6586                         } else {
6587                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6588                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6589                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6590                                         if ((av->assoc_value != 0) &&
6591                                             (inp->auth_supported == 0)) {
6592                                                 /*
6593                                                  * AUTH is required for
6594                                                  * ASCONF
6595                                                  */
6596                                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6597                                                 error = EINVAL;
6598                                         } else {
6599                                                 SCTP_INP_WLOCK(inp);
6600                                                 if (av->assoc_value == 0) {
6601                                                         inp->asconf_supported = 0;
6602                                                         sctp_auth_delete_chunk(SCTP_ASCONF,
6603                                                             inp->sctp_ep.local_auth_chunks);
6604                                                         sctp_auth_delete_chunk(SCTP_ASCONF_ACK,
6605                                                             inp->sctp_ep.local_auth_chunks);
6606                                                 } else {
6607                                                         inp->asconf_supported = 1;
6608                                                         sctp_auth_add_chunk(SCTP_ASCONF,
6609                                                             inp->sctp_ep.local_auth_chunks);
6610                                                         sctp_auth_add_chunk(SCTP_ASCONF_ACK,
6611                                                             inp->sctp_ep.local_auth_chunks);
6612                                                 }
6613                                                 SCTP_INP_WUNLOCK(inp);
6614                                         }
6615                                 } else {
6616                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6617                                         error = EINVAL;
6618                                 }
6619                         }
6620                         break;
6621                 }
6622         case SCTP_RECONFIG_SUPPORTED:
6623                 {
6624                         struct sctp_assoc_value *av;
6625
6626                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6627                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6628
6629                         if (stcb) {
6630                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6631                                 error = EINVAL;
6632                                 SCTP_TCB_UNLOCK(stcb);
6633                         } else {
6634                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6635                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6636                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6637                                         SCTP_INP_WLOCK(inp);
6638                                         if (av->assoc_value == 0) {
6639                                                 inp->reconfig_supported = 0;
6640                                         } else {
6641                                                 inp->reconfig_supported = 1;
6642                                         }
6643                                         SCTP_INP_WUNLOCK(inp);
6644                                 } else {
6645                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6646                                         error = EINVAL;
6647                                 }
6648                         }
6649                         break;
6650                 }
6651         case SCTP_NRSACK_SUPPORTED:
6652                 {
6653                         struct sctp_assoc_value *av;
6654
6655                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6656                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6657
6658                         if (stcb) {
6659                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6660                                 error = EINVAL;
6661                                 SCTP_TCB_UNLOCK(stcb);
6662                         } else {
6663                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6664                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6665                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6666                                         SCTP_INP_WLOCK(inp);
6667                                         if (av->assoc_value == 0) {
6668                                                 inp->nrsack_supported = 0;
6669                                         } else {
6670                                                 inp->nrsack_supported = 1;
6671                                         }
6672                                         SCTP_INP_WUNLOCK(inp);
6673                                 } else {
6674                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6675                                         error = EINVAL;
6676                                 }
6677                         }
6678                         break;
6679                 }
6680         case SCTP_PKTDROP_SUPPORTED:
6681                 {
6682                         struct sctp_assoc_value *av;
6683
6684                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6685                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6686
6687                         if (stcb) {
6688                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6689                                 error = EINVAL;
6690                                 SCTP_TCB_UNLOCK(stcb);
6691                         } else {
6692                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6693                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6694                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6695                                         SCTP_INP_WLOCK(inp);
6696                                         if (av->assoc_value == 0) {
6697                                                 inp->pktdrop_supported = 0;
6698                                         } else {
6699                                                 inp->pktdrop_supported = 1;
6700                                         }
6701                                         SCTP_INP_WUNLOCK(inp);
6702                                 } else {
6703                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6704                                         error = EINVAL;
6705                                 }
6706                         }
6707                         break;
6708                 }
6709         case SCTP_MAX_CWND:
6710                 {
6711                         struct sctp_assoc_value *av;
6712                         struct sctp_nets *net;
6713
6714                         SCTP_CHECK_AND_CAST(av, optval, struct sctp_assoc_value, optsize);
6715                         SCTP_FIND_STCB(inp, stcb, av->assoc_id);
6716
6717                         if (stcb) {
6718                                 stcb->asoc.max_cwnd = av->assoc_value;
6719                                 if (stcb->asoc.max_cwnd > 0) {
6720                                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
6721                                                 if ((net->cwnd > stcb->asoc.max_cwnd) &&
6722                                                     (net->cwnd > (net->mtu - sizeof(struct sctphdr)))) {
6723                                                         net->cwnd = stcb->asoc.max_cwnd;
6724                                                         if (net->cwnd < (net->mtu - sizeof(struct sctphdr))) {
6725                                                                 net->cwnd = net->mtu - sizeof(struct sctphdr);
6726                                                         }
6727                                                 }
6728                                         }
6729                                 }
6730                                 SCTP_TCB_UNLOCK(stcb);
6731                         } else {
6732                                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) ||
6733                                     (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) ||
6734                                     (av->assoc_id == SCTP_FUTURE_ASSOC)) {
6735                                         SCTP_INP_WLOCK(inp);
6736                                         inp->max_cwnd = av->assoc_value;
6737                                         SCTP_INP_WUNLOCK(inp);
6738                                 } else {
6739                                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6740                                         error = EINVAL;
6741                                 }
6742                         }
6743                         break;
6744                 }
6745         default:
6746                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOPROTOOPT);
6747                 error = ENOPROTOOPT;
6748                 break;
6749         }                       /* end switch (opt) */
6750         return (error);
6751 }
6752
6753 int
6754 sctp_ctloutput(struct socket *so, struct sockopt *sopt)
6755 {
6756         void *optval = NULL;
6757         size_t optsize = 0;
6758         void *p;
6759         int error = 0;
6760         struct sctp_inpcb *inp;
6761
6762         if ((sopt->sopt_level == SOL_SOCKET) &&
6763             (sopt->sopt_name == SO_SETFIB)) {
6764                 inp = (struct sctp_inpcb *)so->so_pcb;
6765                 if (inp == NULL) {
6766                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6767                         return (EINVAL);
6768                 }
6769                 SCTP_INP_WLOCK(inp);
6770                 inp->fibnum = so->so_fibnum;
6771                 SCTP_INP_WUNLOCK(inp);
6772                 return (0);
6773         }
6774         if (sopt->sopt_level != IPPROTO_SCTP) {
6775                 /* wrong proto level... send back up to IP */
6776 #ifdef INET6
6777                 if (INP_CHECK_SOCKAF(so, AF_INET6))
6778                         error = ip6_ctloutput(so, sopt);
6779 #endif                          /* INET6 */
6780 #if defined(INET) && defined(INET6)
6781                 else
6782 #endif
6783 #ifdef INET
6784                         error = ip_ctloutput(so, sopt);
6785 #endif
6786                 return (error);
6787         }
6788         optsize = sopt->sopt_valsize;
6789         if (optsize) {
6790                 SCTP_MALLOC(optval, void *, optsize, SCTP_M_SOCKOPT);
6791                 if (optval == NULL) {
6792                         SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOBUFS);
6793                         return (ENOBUFS);
6794                 }
6795                 error = sooptcopyin(sopt, optval, optsize, optsize);
6796                 if (error) {
6797                         SCTP_FREE(optval, SCTP_M_SOCKOPT);
6798                         goto out;
6799                 }
6800         }
6801         p = (void *)sopt->sopt_td;
6802         if (sopt->sopt_dir == SOPT_SET) {
6803                 error = sctp_setopt(so, sopt->sopt_name, optval, optsize, p);
6804         } else if (sopt->sopt_dir == SOPT_GET) {
6805                 error = sctp_getopt(so, sopt->sopt_name, optval, &optsize, p);
6806         } else {
6807                 SCTP_LTRACE_ERR_RET(so->so_pcb, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6808                 error = EINVAL;
6809         }
6810         if ((error == 0) && (optval != NULL)) {
6811                 error = sooptcopyout(sopt, optval, optsize);
6812                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6813         } else if (optval != NULL) {
6814                 SCTP_FREE(optval, SCTP_M_SOCKOPT);
6815         }
6816 out:
6817         return (error);
6818 }
6819
6820 #ifdef INET
6821 static int
6822 sctp_connect(struct socket *so, struct sockaddr *addr, struct thread *p)
6823 {
6824         int error = 0;
6825         int create_lock_on = 0;
6826         uint32_t vrf_id;
6827         struct sctp_inpcb *inp;
6828         struct sctp_tcb *stcb = NULL;
6829
6830         inp = (struct sctp_inpcb *)so->so_pcb;
6831         if (inp == NULL) {
6832                 /* I made the same as TCP since we are not setup? */
6833                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6834                 return (ECONNRESET);
6835         }
6836         if (addr == NULL) {
6837                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6838                 return EINVAL;
6839         }
6840         switch (addr->sa_family) {
6841 #ifdef INET6
6842         case AF_INET6:
6843                 {
6844                         struct sockaddr_in6 *sin6p;
6845
6846                         if (addr->sa_len != sizeof(struct sockaddr_in6)) {
6847                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6848                                 return (EINVAL);
6849                         }
6850                         sin6p = (struct sockaddr_in6 *)addr;
6851                         if (p != NULL && (error = prison_remote_ip6(p->td_ucred, &sin6p->sin6_addr)) != 0) {
6852                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6853                                 return (error);
6854                         }
6855                         break;
6856                 }
6857 #endif
6858 #ifdef INET
6859         case AF_INET:
6860                 {
6861                         struct sockaddr_in *sinp;
6862
6863                         if (addr->sa_len != sizeof(struct sockaddr_in)) {
6864                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6865                                 return (EINVAL);
6866                         }
6867                         sinp = (struct sockaddr_in *)addr;
6868                         if (p != NULL && (error = prison_remote_ip4(p->td_ucred, &sinp->sin_addr)) != 0) {
6869                                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, error);
6870                                 return (error);
6871                         }
6872                         break;
6873                 }
6874 #endif
6875         default:
6876                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EAFNOSUPPORT);
6877                 return (EAFNOSUPPORT);
6878         }
6879         SCTP_INP_INCR_REF(inp);
6880         SCTP_ASOC_CREATE_LOCK(inp);
6881         create_lock_on = 1;
6882
6883
6884         if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) ||
6885             (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) {
6886                 /* Should I really unlock ? */
6887                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EFAULT);
6888                 error = EFAULT;
6889                 goto out_now;
6890         }
6891 #ifdef INET6
6892         if (((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) &&
6893             (addr->sa_family == AF_INET6)) {
6894                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6895                 error = EINVAL;
6896                 goto out_now;
6897         }
6898 #endif
6899         if ((inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) ==
6900             SCTP_PCB_FLAGS_UNBOUND) {
6901                 /* Bind a ephemeral port */
6902                 error = sctp_inpcb_bind(so, NULL, NULL, p);
6903                 if (error) {
6904                         goto out_now;
6905                 }
6906         }
6907         /* Now do we connect? */
6908         if ((inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) &&
6909             (sctp_is_feature_off(inp, SCTP_PCB_FLAGS_PORTREUSE))) {
6910                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6911                 error = EINVAL;
6912                 goto out_now;
6913         }
6914         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
6915             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
6916                 /* We are already connected AND the TCP model */
6917                 SCTP_LTRACE_ERR_RET(inp, stcb, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
6918                 error = EADDRINUSE;
6919                 goto out_now;
6920         }
6921         if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
6922                 SCTP_INP_RLOCK(inp);
6923                 stcb = LIST_FIRST(&inp->sctp_asoc_list);
6924                 SCTP_INP_RUNLOCK(inp);
6925         } else {
6926                 /*
6927                  * We increment here since sctp_findassociation_ep_addr()
6928                  * will do a decrement if it finds the stcb as long as the
6929                  * locked tcb (last argument) is NOT a TCB.. aka NULL.
6930                  */
6931                 SCTP_INP_INCR_REF(inp);
6932                 stcb = sctp_findassociation_ep_addr(&inp, addr, NULL, NULL, NULL);
6933                 if (stcb == NULL) {
6934                         SCTP_INP_DECR_REF(inp);
6935                 } else {
6936                         SCTP_TCB_UNLOCK(stcb);
6937                 }
6938         }
6939         if (stcb != NULL) {
6940                 /* Already have or am bring up an association */
6941                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EALREADY);
6942                 error = EALREADY;
6943                 goto out_now;
6944         }
6945         vrf_id = inp->def_vrf_id;
6946         /* We are GOOD to go */
6947         stcb = sctp_aloc_assoc(inp, addr, &error, 0, vrf_id, inp->sctp_ep.pre_open_stream_count, p);
6948         if (stcb == NULL) {
6949                 /* Gak! no memory */
6950                 goto out_now;
6951         }
6952         if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) {
6953                 stcb->sctp_ep->sctp_flags |= SCTP_PCB_FLAGS_CONNECTED;
6954                 /* Set the connected flag so we can queue data */
6955                 soisconnecting(so);
6956         }
6957         SCTP_SET_STATE(&stcb->asoc, SCTP_STATE_COOKIE_WAIT);
6958         (void)SCTP_GETTIME_TIMEVAL(&stcb->asoc.time_entered);
6959
6960         /* initialize authentication parameters for the assoc */
6961         sctp_initialize_auth_params(inp, stcb);
6962
6963         sctp_send_initiate(inp, stcb, SCTP_SO_LOCKED);
6964         SCTP_TCB_UNLOCK(stcb);
6965 out_now:
6966         if (create_lock_on) {
6967                 SCTP_ASOC_CREATE_UNLOCK(inp);
6968         }
6969         SCTP_INP_DECR_REF(inp);
6970         return (error);
6971 }
6972
6973 #endif
6974
6975 int
6976 sctp_listen(struct socket *so, int backlog, struct thread *p)
6977 {
6978         /*
6979          * Note this module depends on the protocol processing being called
6980          * AFTER any socket level flags and backlog are applied to the
6981          * socket. The traditional way that the socket flags are applied is
6982          * AFTER protocol processing. We have made a change to the
6983          * sys/kern/uipc_socket.c module to reverse this but this MUST be in
6984          * place if the socket API for SCTP is to work properly.
6985          */
6986
6987         int error = 0;
6988         struct sctp_inpcb *inp;
6989
6990         inp = (struct sctp_inpcb *)so->so_pcb;
6991         if (inp == NULL) {
6992                 /* I made the same as TCP since we are not setup? */
6993                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
6994                 return (ECONNRESET);
6995         }
6996         if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) {
6997                 /* See if we have a listener */
6998                 struct sctp_inpcb *tinp;
6999                 union sctp_sockstore store;
7000
7001                 if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) == 0) {
7002                         /* not bound all */
7003                         struct sctp_laddr *laddr;
7004
7005                         LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7006                                 memcpy(&store, &laddr->ifa->address, sizeof(store));
7007                                 switch (store.sa.sa_family) {
7008 #ifdef INET
7009                                 case AF_INET:
7010                                         store.sin.sin_port = inp->sctp_lport;
7011                                         break;
7012 #endif
7013 #ifdef INET6
7014                                 case AF_INET6:
7015                                         store.sin6.sin6_port = inp->sctp_lport;
7016                                         break;
7017 #endif
7018                                 default:
7019                                         break;
7020                                 }
7021                                 tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7022                                 if (tinp && (tinp != inp) &&
7023                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7024                                     ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7025                                     (tinp->sctp_socket->so_qlimit)) {
7026                                         /*
7027                                          * we have a listener already and
7028                                          * its not this inp.
7029                                          */
7030                                         SCTP_INP_DECR_REF(tinp);
7031                                         return (EADDRINUSE);
7032                                 } else if (tinp) {
7033                                         SCTP_INP_DECR_REF(tinp);
7034                                 }
7035                         }
7036                 } else {
7037                         /* Setup a local addr bound all */
7038                         memset(&store, 0, sizeof(store));
7039 #ifdef INET6
7040                         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) {
7041                                 store.sa.sa_family = AF_INET6;
7042                                 store.sa.sa_len = sizeof(struct sockaddr_in6);
7043                         }
7044 #endif
7045 #ifdef INET
7046                         if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) {
7047                                 store.sa.sa_family = AF_INET;
7048                                 store.sa.sa_len = sizeof(struct sockaddr_in);
7049                         }
7050 #endif
7051                         switch (store.sa.sa_family) {
7052 #ifdef INET
7053                         case AF_INET:
7054                                 store.sin.sin_port = inp->sctp_lport;
7055                                 break;
7056 #endif
7057 #ifdef INET6
7058                         case AF_INET6:
7059                                 store.sin6.sin6_port = inp->sctp_lport;
7060                                 break;
7061 #endif
7062                         default:
7063                                 break;
7064                         }
7065                         tinp = sctp_pcb_findep(&store.sa, 0, 0, inp->def_vrf_id);
7066                         if (tinp && (tinp != inp) &&
7067                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) == 0) &&
7068                             ((tinp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) &&
7069                             (tinp->sctp_socket->so_qlimit)) {
7070                                 /*
7071                                  * we have a listener already and its not
7072                                  * this inp.
7073                                  */
7074                                 SCTP_INP_DECR_REF(tinp);
7075                                 return (EADDRINUSE);
7076                         } else if (tinp) {
7077                                 SCTP_INP_DECR_REF(tinp);
7078                         }
7079                 }
7080         }
7081         SCTP_INP_RLOCK(inp);
7082 #ifdef SCTP_LOCK_LOGGING
7083         if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_LOCK_LOGGING_ENABLE) {
7084                 sctp_log_lock(inp, (struct sctp_tcb *)NULL, SCTP_LOG_LOCK_SOCK);
7085         }
7086 #endif
7087         SOCK_LOCK(so);
7088         error = solisten_proto_check(so);
7089         SOCK_UNLOCK(so);
7090         if (error) {
7091                 SCTP_INP_RUNLOCK(inp);
7092                 return (error);
7093         }
7094         if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_PORTREUSE)) &&
7095             (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) {
7096                 /*
7097                  * The unlucky case - We are in the tcp pool with this guy.
7098                  * - Someone else is in the main inp slot. - We must move
7099                  * this guy (the listener) to the main slot - We must then
7100                  * move the guy that was listener to the TCP Pool.
7101                  */
7102                 if (sctp_swap_inpcb_for_listen(inp)) {
7103                         SCTP_INP_RUNLOCK(inp);
7104                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7105                         return (EADDRINUSE);
7106                 }
7107         }
7108         if ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) &&
7109             (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED)) {
7110                 /* We are already connected AND the TCP model */
7111                 SCTP_INP_RUNLOCK(inp);
7112                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EADDRINUSE);
7113                 return (EADDRINUSE);
7114         }
7115         SCTP_INP_RUNLOCK(inp);
7116         if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) {
7117                 /* We must do a bind. */
7118                 if ((error = sctp_inpcb_bind(so, NULL, NULL, p))) {
7119                         /* bind error, probably perm */
7120                         return (error);
7121                 }
7122         }
7123         SOCK_LOCK(so);
7124         /* It appears for 7.0 and on, we must always call this. */
7125         solisten_proto(so, backlog);
7126         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7127                 /* remove the ACCEPTCONN flag for one-to-many sockets */
7128                 so->so_options &= ~SO_ACCEPTCONN;
7129         }
7130         if (backlog == 0) {
7131                 /* turning off listen */
7132                 so->so_options &= ~SO_ACCEPTCONN;
7133         }
7134         SOCK_UNLOCK(so);
7135         return (error);
7136 }
7137
7138 static int sctp_defered_wakeup_cnt = 0;
7139
7140 int
7141 sctp_accept(struct socket *so, struct sockaddr **addr)
7142 {
7143         struct sctp_tcb *stcb;
7144         struct sctp_inpcb *inp;
7145         union sctp_sockstore store;
7146
7147 #ifdef INET6
7148         int error;
7149
7150 #endif
7151         inp = (struct sctp_inpcb *)so->so_pcb;
7152
7153         if (inp == NULL) {
7154                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7155                 return (ECONNRESET);
7156         }
7157         SCTP_INP_RLOCK(inp);
7158         if (inp->sctp_flags & SCTP_PCB_FLAGS_UDPTYPE) {
7159                 SCTP_INP_RUNLOCK(inp);
7160                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EOPNOTSUPP);
7161                 return (EOPNOTSUPP);
7162         }
7163         if (so->so_state & SS_ISDISCONNECTED) {
7164                 SCTP_INP_RUNLOCK(inp);
7165                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ECONNABORTED);
7166                 return (ECONNABORTED);
7167         }
7168         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7169         if (stcb == NULL) {
7170                 SCTP_INP_RUNLOCK(inp);
7171                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7172                 return (ECONNRESET);
7173         }
7174         SCTP_TCB_LOCK(stcb);
7175         SCTP_INP_RUNLOCK(inp);
7176         store = stcb->asoc.primary_destination->ro._l_addr;
7177         stcb->asoc.state &= ~SCTP_STATE_IN_ACCEPT_QUEUE;
7178         SCTP_TCB_UNLOCK(stcb);
7179         switch (store.sa.sa_family) {
7180 #ifdef INET
7181         case AF_INET:
7182                 {
7183                         struct sockaddr_in *sin;
7184
7185                         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7186                         if (sin == NULL)
7187                                 return (ENOMEM);
7188                         sin->sin_family = AF_INET;
7189                         sin->sin_len = sizeof(*sin);
7190                         sin->sin_port = store.sin.sin_port;
7191                         sin->sin_addr = store.sin.sin_addr;
7192                         *addr = (struct sockaddr *)sin;
7193                         break;
7194                 }
7195 #endif
7196 #ifdef INET6
7197         case AF_INET6:
7198                 {
7199                         struct sockaddr_in6 *sin6;
7200
7201                         SCTP_MALLOC_SONAME(sin6, struct sockaddr_in6 *, sizeof *sin6);
7202                         if (sin6 == NULL)
7203                                 return (ENOMEM);
7204                         sin6->sin6_family = AF_INET6;
7205                         sin6->sin6_len = sizeof(*sin6);
7206                         sin6->sin6_port = store.sin6.sin6_port;
7207                         sin6->sin6_addr = store.sin6.sin6_addr;
7208                         if ((error = sa6_recoverscope(sin6)) != 0) {
7209                                 SCTP_FREE_SONAME(sin6);
7210                                 return (error);
7211                         }
7212                         *addr = (struct sockaddr *)sin6;
7213                         break;
7214                 }
7215 #endif
7216         default:
7217                 /* TSNH */
7218                 break;
7219         }
7220         /* Wake any delayed sleep action */
7221         if (inp->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) {
7222                 SCTP_INP_WLOCK(inp);
7223                 inp->sctp_flags &= ~SCTP_PCB_FLAGS_DONT_WAKE;
7224                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) {
7225                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEOUTPUT;
7226                         SCTP_INP_WUNLOCK(inp);
7227                         SOCKBUF_LOCK(&inp->sctp_socket->so_snd);
7228                         if (sowriteable(inp->sctp_socket)) {
7229                                 sowwakeup_locked(inp->sctp_socket);
7230                         } else {
7231                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_snd);
7232                         }
7233                         SCTP_INP_WLOCK(inp);
7234                 }
7235                 if (inp->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) {
7236                         inp->sctp_flags &= ~SCTP_PCB_FLAGS_WAKEINPUT;
7237                         SCTP_INP_WUNLOCK(inp);
7238                         SOCKBUF_LOCK(&inp->sctp_socket->so_rcv);
7239                         if (soreadable(inp->sctp_socket)) {
7240                                 sctp_defered_wakeup_cnt++;
7241                                 sorwakeup_locked(inp->sctp_socket);
7242                         } else {
7243                                 SOCKBUF_UNLOCK(&inp->sctp_socket->so_rcv);
7244                         }
7245                         SCTP_INP_WLOCK(inp);
7246                 }
7247                 SCTP_INP_WUNLOCK(inp);
7248         }
7249         if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) {
7250                 SCTP_TCB_LOCK(stcb);
7251                 sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC,
7252                     SCTP_FROM_SCTP_USRREQ + SCTP_LOC_19);
7253         }
7254         return (0);
7255 }
7256
7257 #ifdef INET
7258 int
7259 sctp_ingetaddr(struct socket *so, struct sockaddr **addr)
7260 {
7261         struct sockaddr_in *sin;
7262         uint32_t vrf_id;
7263         struct sctp_inpcb *inp;
7264         struct sctp_ifa *sctp_ifa;
7265
7266         /*
7267          * Do the malloc first in case it blocks.
7268          */
7269         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7270         if (sin == NULL)
7271                 return (ENOMEM);
7272         sin->sin_family = AF_INET;
7273         sin->sin_len = sizeof(*sin);
7274         inp = (struct sctp_inpcb *)so->so_pcb;
7275         if (!inp) {
7276                 SCTP_FREE_SONAME(sin);
7277                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7278                 return (ECONNRESET);
7279         }
7280         SCTP_INP_RLOCK(inp);
7281         sin->sin_port = inp->sctp_lport;
7282         if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) {
7283                 if (inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) {
7284                         struct sctp_tcb *stcb;
7285                         struct sockaddr_in *sin_a;
7286                         struct sctp_nets *net;
7287                         int fnd;
7288
7289                         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7290                         if (stcb == NULL) {
7291                                 goto notConn;
7292                         }
7293                         fnd = 0;
7294                         sin_a = NULL;
7295                         SCTP_TCB_LOCK(stcb);
7296                         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7297                                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7298                                 if (sin_a == NULL)
7299                                         /* this will make coverity happy */
7300                                         continue;
7301
7302                                 if (sin_a->sin_family == AF_INET) {
7303                                         fnd = 1;
7304                                         break;
7305                                 }
7306                         }
7307                         if ((!fnd) || (sin_a == NULL)) {
7308                                 /* punt */
7309                                 SCTP_TCB_UNLOCK(stcb);
7310                                 goto notConn;
7311                         }
7312                         vrf_id = inp->def_vrf_id;
7313                         sctp_ifa = sctp_source_address_selection(inp,
7314                             stcb,
7315                             (sctp_route_t *) & net->ro,
7316                             net, 0, vrf_id);
7317                         if (sctp_ifa) {
7318                                 sin->sin_addr = sctp_ifa->address.sin.sin_addr;
7319                                 sctp_free_ifa(sctp_ifa);
7320                         }
7321                         SCTP_TCB_UNLOCK(stcb);
7322                 } else {
7323                         /* For the bound all case you get back 0 */
7324         notConn:
7325                         sin->sin_addr.s_addr = 0;
7326                 }
7327
7328         } else {
7329                 /* Take the first IPv4 address in the list */
7330                 struct sctp_laddr *laddr;
7331                 int fnd = 0;
7332
7333                 LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) {
7334                         if (laddr->ifa->address.sa.sa_family == AF_INET) {
7335                                 struct sockaddr_in *sin_a;
7336
7337                                 sin_a = &laddr->ifa->address.sin;
7338                                 sin->sin_addr = sin_a->sin_addr;
7339                                 fnd = 1;
7340                                 break;
7341                         }
7342                 }
7343                 if (!fnd) {
7344                         SCTP_FREE_SONAME(sin);
7345                         SCTP_INP_RUNLOCK(inp);
7346                         SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7347                         return (ENOENT);
7348                 }
7349         }
7350         SCTP_INP_RUNLOCK(inp);
7351         (*addr) = (struct sockaddr *)sin;
7352         return (0);
7353 }
7354
7355 int
7356 sctp_peeraddr(struct socket *so, struct sockaddr **addr)
7357 {
7358         struct sockaddr_in *sin;
7359         int fnd;
7360         struct sockaddr_in *sin_a;
7361         struct sctp_inpcb *inp;
7362         struct sctp_tcb *stcb;
7363         struct sctp_nets *net;
7364
7365         /* Do the malloc first in case it blocks. */
7366         SCTP_MALLOC_SONAME(sin, struct sockaddr_in *, sizeof *sin);
7367         if (sin == NULL)
7368                 return (ENOMEM);
7369         sin->sin_family = AF_INET;
7370         sin->sin_len = sizeof(*sin);
7371
7372         inp = (struct sctp_inpcb *)so->so_pcb;
7373         if ((inp == NULL) ||
7374             ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0)) {
7375                 /* UDP type and listeners will drop out here */
7376                 SCTP_FREE_SONAME(sin);
7377                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOTCONN);
7378                 return (ENOTCONN);
7379         }
7380         SCTP_INP_RLOCK(inp);
7381         stcb = LIST_FIRST(&inp->sctp_asoc_list);
7382         if (stcb) {
7383                 SCTP_TCB_LOCK(stcb);
7384         }
7385         SCTP_INP_RUNLOCK(inp);
7386         if (stcb == NULL) {
7387                 SCTP_FREE_SONAME(sin);
7388                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, EINVAL);
7389                 return (ECONNRESET);
7390         }
7391         fnd = 0;
7392         TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) {
7393                 sin_a = (struct sockaddr_in *)&net->ro._l_addr;
7394                 if (sin_a->sin_family == AF_INET) {
7395                         fnd = 1;
7396                         sin->sin_port = stcb->rport;
7397                         sin->sin_addr = sin_a->sin_addr;
7398                         break;
7399                 }
7400         }
7401         SCTP_TCB_UNLOCK(stcb);
7402         if (!fnd) {
7403                 /* No IPv4 address */
7404                 SCTP_FREE_SONAME(sin);
7405                 SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTP_USRREQ, ENOENT);
7406                 return (ENOENT);
7407         }
7408         (*addr) = (struct sockaddr *)sin;
7409         return (0);
7410 }
7411
7412 struct pr_usrreqs sctp_usrreqs = {
7413         .pru_abort = sctp_abort,
7414         .pru_accept = sctp_accept,
7415         .pru_attach = sctp_attach,
7416         .pru_bind = sctp_bind,
7417         .pru_connect = sctp_connect,
7418         .pru_control = in_control,
7419         .pru_close = sctp_close,
7420         .pru_detach = sctp_close,
7421         .pru_sopoll = sopoll_generic,
7422         .pru_flush = sctp_flush,
7423         .pru_disconnect = sctp_disconnect,
7424         .pru_listen = sctp_listen,
7425         .pru_peeraddr = sctp_peeraddr,
7426         .pru_send = sctp_sendm,
7427         .pru_shutdown = sctp_shutdown,
7428         .pru_sockaddr = sctp_ingetaddr,
7429         .pru_sosend = sctp_sosend,
7430         .pru_soreceive = sctp_soreceive
7431 };
7432
7433 #endif